Sample records for fairbanks north star

  1. North Campus Plan University of Alaska Fairbanks

    E-Print Network [OSTI]

    Hartman, Chris

    and Wildlife Carol Adamczak, Senior Project Manager, Division of Design and Construction, Facilities Services Pamela Davis, Executive Director, Development Office Terry Dowdy, Director, Environmental Health & Safety, Fairbanks North Star Borough Luke Hopkins, Manager, Facilities Services Katie Murra, Graduate student Ian

  2. Superfund Record of Decision (EPA Region 10): Fort Wainwright, Operable Unit 2, Fairbanks North Star Borough, AK, March 31, 1997

    SciTech Connect (OSTI)

    NONE

    1997-11-01T23:59:59.000Z

    This Record of Decision (ROD) presents the selected remedial actions for Operable Unit 2 (OU-2) at Fort Wainwright in Fairbanks, Alaska. OU-2 originally consisted in eight source areas: the defense Reutilization and Marketing Office (DRMO) Yard, the Building 1168 Leach Well, the North Post Site, the 801 Drum Burial Site, the Engineers Park Drum Site, the Drum Site South of the Landfill, Building 3477, and the Tar Sites. The major components of the remedies at source areas are: in situ soil vapor extraction and air sparging of the groundwater to reduce volatile organic compounds to a level that meets state and federal MCLs; institutional controls that would include restrictions on groundwater well installations, site access restrictions, and maintenance of fencing at the DRMO Yard until state and federal MCLs are met; additional institutional controls, including a limitation on refilling the DRMO Yard fire suppression water tank from the existing potable water supply well, until state and federal MCLs are met (except in emergency situations); and natural attenuation to attain Alaska Water Quality Standards after reaching state and federal MCLs.

  3. Fairbanks Geothermal Energy Project Final Report

    SciTech Connect (OSTI)

    Karl, Bernie [CHSR,LLC Owner] [CHSR,LLC Owner

    2013-05-31T23:59:59.000Z

    The primary objective for the Fairbanks Geothermal Energy Project is to provide another source of base-load renewable energy in the Fairbanks North Star Borough (FNSB). To accomplish this, Chena Hot Springs Resort (Chena) drilled a re-injection well to 2700 feet and a production well to 2500 feet. The re-injection well allows a greater flow of water to directly replace the water removed from the warmest fractures in the geothermal reservoir. The new production will provide access to warmer temperature water in greater quantities.

  4. Fairbanks North Star Borough, Alaska: Energy Resources | 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 directedAnnualPropertyd8c-a9ae-f8521cbb8489 NoEurope BV Jump to:FASFMI-HDFRED Type TermValley Of

  5. North Star Refrigerator: Order (2013-CE-5355)

    Broader source: Energy.gov [DOE]

    DOE ordered North Star Refrigerator Co., Inc. to pay a $8,000 civil penalty after finding North Star Refrigerator had failed to certify that any basic models of walk-in cooler and freezer components comply with the applicable energy conservation standards.

  6. University of Alaska Fairbanks [A COMPARITIVE ANALYSIS OF

    E-Print Network [OSTI]

    Wagner, Diane

    " diameter pipeline bringing natural gas from the North Slope to the Anchorage market. This report evaluates proposals have been made that could bring natural gas to the Fairbanks markets. Most of these proposals of these proposals carries a source of natural gas close enough to the Fairbanks market to meet local demand

  7. alaska fairbanks fairbanks: Topics by E-print Network

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

    goals? Disability Information In your own Ickert-Bond, Steffi 12 Organic Chemistry II Syllabus University of Alaska Fairbanks Environmental Sciences and Ecology Websites Summary: 1...

  8. North Star Refrigerator: Proposed Penalty (2013-CE-5355)

    Broader source: Energy.gov [DOE]

    DOE alleged in a Notice of Proposed Civil Penalty that North Star Refrigerator Co., Inc. failed to certify a variety of walk-in cooler or freezer components as compliant with the applicable energy conservation standards.

  9. Graduate Programs University of AlaskaFairbanks

    E-Print Network [OSTI]

    Geology Graduate Programs University of AlaskaFairbanks Fairbanks, Alaska 997755780 Program Program: Geology http://www.auburn.edu/academic/science_math/geology/docs/graddrg.htm Brigham Young University Provo, Utah 846024606 Program: Geology http://geologyindy.byu.edu/programs

  10. Aeromagnetic Survey At Blue Mountain Geothermal Area (Fairbank...

    Open Energy Info (EERE)

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

  11. Well Log Data At Blue Mountain Geothermal Area (Fairbank & Niggemann...

    Open Energy Info (EERE)

    search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Well Log Data At Blue Mountain Geothermal Area (Fairbank & Niggemann, 2004) Exploration Activity Details...

  12. O-like Stars in the Direction of the North America and Pelican Nebulae

    E-Print Network [OSTI]

    V. Straizys; V. Laugalys

    2008-09-18T23:59:59.000Z

    In the area covering the complex of the North America and Pelican nebulae we identified 13 faint stars with J-H and H-Ks color indices which simulate heavily reddened O-type stars. One of these stars is CP05-4 classified as O5 V by Comeron and Pasquali (2005). Combining magnitudes of these stars in the passbands I, J, H, Ks and [8.3] we were able to suspect that two of them are carbon stars and five are late M-type AGB stars. Interstellar extinction in the direction of these stars was estimated from the background red clump giants in the J-H vs. H-Ks diagram and from star counts in the Ks passband. Four or five stars are found to have a considerable probability of being O-type stars, contributing to the ionization of North America and Pelican. If they really are O-type stars, their interstellar extinction A(V) should be from 16 to 35 mag. Two of them seem to be responsible for bright E and J radio rims discovered by Matthews and Goss (1980).

  13. UNIVERSITY OF ALASKA FAIRBANKS ENGINEERING FACILITY

    E-Print Network [OSTI]

    Wagner, Diane

    UNIVERSITY OF ALASKA FAIRBANKS ENGINEERING FACILITY PROGRAMMING AND SITE SELECTION REPORT FINAL 09 SUMMARY 2. PROGRAMMING PARTICIPANTS & DESIGN TEAM 3. CODES & REGULATIONS 4. PROGRAM 5. SITE 6. PLAN ORGANIZATIONAL DIAGRAMS 7. CIVIL ENGINEERING 8. STRUCTURAL SYSTEMS 9. MECHANICAL SYSTEMS 10. PLUMBING SYSTEMS 11

  14. Comment submitted by the North American Association of Food Equipment Manufacturers (NAFEM) regarding the Energy Star Verification Testing Program

    Broader source: Energy.gov [DOE]

    This document is a comment submitted by the North American Association of Food Equipment Manufacturers (NAFEM) regarding the Energy Star Verification Testing Program

  15. STATEMENT OF BRIAN D. FAIRBANK Nevada Geothermal Power Inc.'s...

    Open Energy Info (EERE)

    to library General: STATEMENT OF BRIAN D. FAIRBANK Nevada Geothermal Power Inc.'s Blue Mountain Geothermal Power Facility Author BRIAN D. FAIRBANK Published Publisher Not...

  16. STATEMENT OF BRIAN D. FAIRBANK Nevada Geothermal Power Inc.'s...

    Open Energy Info (EERE)

    Personal Communication: STATEMENT OF BRIAN D. FAIRBANK Nevada Geothermal Power Inc.'s Blue Mountain Geothermal Power Facility Abstract Not available. Author Brian D. Fairbank...

  17. Thermal Gradient Holes At Blue Mountain Geothermal Area (Fairbank...

    Open Energy Info (EERE)

    search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal Gradient Holes At Blue Mountain Geothermal Area (Fairbank & Ross, 1999) Exploration Activity Details Location...

  18. Thermal Gradient Holes At Blue Mountain Geothermal Area (Fairbank...

    Open Energy Info (EERE)

    Blue Mountain Geothermal Area (Fairbank & Niggemann, 2004) Exploration Activity Details Location Blue Mountain Geothermal Area Exploration Technique Thermal Gradient Holes Activity...

  19. Direct-Current Resistivity Survey At Blue Mountain Area (Fairbank...

    Open Energy Info (EERE)

    Blue Mountain Area (Fairbank Engineering Ltd, 2005) Exploration Activity Details Location Blue Mountain Area Exploration Technique Direct-Current Resistivity Survey Activity Date...

  20. Dipole-Dipole Resistivity At Blue Mountain Geothermal Area (Fairbank...

    Open Energy Info (EERE)

    Fairbank Engineering Ltd, 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Dipole-Dipole Resistivity At Blue Mountain Geothermal Area...

  1. Static Temperature Survey At Blue Mountain Geothermal Area (Fairbank...

    Open Energy Info (EERE)

    Fairbank Engineering Ltd, 2003) Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Static Temperature Survey At Blue Mountain Geothermal Area...

  2. Slim Holes At Blue Mountain Geothermal Area (Fairbank Engineering...

    Open Energy Info (EERE)

    Home Exploration Activity: Slim Holes At Blue Mountain Geothermal Area (Fairbank Engineering Ltd, 2003) Exploration Activity Details Location Blue Mountain Geothermal Area...

  3. Reflection Survey At Blue Mountain Geothermal Area (Fairbank...

    Open Energy Info (EERE)

    dipping faults that become less steep with increasing depth. References Fairbank Engineering Ltd (2003) Phase I Report U.S. DOE GRED II Program Additional References Retrieved...

  4. Ground Gravity Survey At Blue Mountain Geothermal Area (Fairbank...

    Open Energy Info (EERE)

    Fairbank Engineering Ltd, 2003) Exploration Activity Details Location Blue Mountain Geothermal Area Exploration Technique Ground Gravity Survey Activity Date Usefulness not...

  5. Aerial Photography At Blue Mountain Geothermal Area (Fairbank...

    Open Energy Info (EERE)

    Exploration Activity: Aerial Photography At Blue Mountain Geothermal Area (Fairbank Engineering Ltd, 2003) Exploration Activity Details Location Blue Mountain Geothermal Area...

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

    Open Energy Info (EERE)

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

  7. Open Data + north stars | OpenEI Community

    Open Energy Info (EERE)

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

  8. North Star, Delaware: 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: Energy ResourcesGranby,Plains, Oregon:Sea, NewSt. Paul,Star,

  9. Self Potential At Blue Mountain Geothermal Area (Fairbank Engineering...

    Open Energy Info (EERE)

    low SP anomalies. The anomalies had a minimum value of -268 mV. References Fairbank Engineering Ltd (2003) Phase I Report U.S. DOE GRED II Program Additional References Retrieved...

  10. CCD photometry and classification of stars in the North America and Pelican nebulae region. I. Moletai photometry

    E-Print Network [OSTI]

    V. Laugalys; V. Straizys

    2002-09-21T23:59:59.000Z

    Magnitudes and color indices in the Vilnius seven-color system are measured for 690 stars down to ~13.2 mag in the area of the North America and Pelican nebulae. Spectral types, absolute magnitudes, color excesses, interstellar extinctions and distances of the stars are determined. The plots of interstellar extinction Av versus distance for the North America Nebula and for the dark cloud L935 show that both areas are covered by the same absorbing cloud, situated at a distance of 600 pc. The maximal extinction in the area of the nebula is ~3 mag, while in the dark cloud L935 it is much greater.

  11. Fractal electronic devices: simulation and implementation M S Fairbanks1

    E-Print Network [OSTI]

    Taylor, Richard

    Fractal electronic devices: simulation and implementation M S Fairbanks1 , D N McCarthy2 scattering, which caused the electrons to flow through micro and nano-scale devices along fractal in which novel electronic devices feature a fractal distribution of conducting channels. We will focus

  12. The multi-filter rotating shadowband radiometer (MFRSR) - precision infrared radiometer (PIR) platform in Fairbanks: Scientific objectives

    SciTech Connect (OSTI)

    Stamnes, K.; Leontieva, E. [Univ. of Alaska, Fairbanks (United States)

    1996-04-01T23:59:59.000Z

    The multi-filter rotating shadowband radiometer (MFRSR) and precision infrared radiometer (PIR) have been employed at the Geophysical Institute in Fairbanks to check their performance under arctic conditions. Drawing on the experience of the previous measurements in the Arctic, the PIR was equipped with a ventilator to prevent frost and moisture build-up. We adopted the Solar Infrared Observing Sytem (SIROS) concept from the Southern Great Plains Cloud and Radiation Testbed (CART) to allow implementation of the same data processing software for a set of radiation and meteorological instruments. To validate the level of performance of the whole SIROS prior to its incorporation into the North Slope of Alaska (NSA) Cloud and Radiation Testbed Site instrumental suite for flux radiatin measurements, the comparison between measurements and model predictions will be undertaken to assess the MFRSR-PIR Arctic data quality.

  13. X-ray properties of UV-selected star forming galaxies at z~1 in the Hubble Deep Field North

    E-Print Network [OSTI]

    Laird, E S; Adelberger, K L; Steidel, C C; Reddy, N A

    2005-01-01T23:59:59.000Z

    We present an analysis of the X-ray emission from a large sample of ultraviolet (UV) selected, star forming galaxies with 0.74North (HDF-N) region. By excluding all sources with significant detected X-ray emission in the 2 Ms Chandra observation we are able to examine the properties of galaxies for which the emission in both UV and X-ray is expected to be predominantly due to star formation. Stacking the X-ray flux from 216 galaxies in the soft and hard bands produces significant detections. The derived mean 2-10 keV rest-frame luminosity is 2.97+/-0.26x10^(40) erg/s, corresponding to an X-ray derived star formation rate (SFR) of 6.0+/-0.6 Msolar/yr. Comparing the X-ray value with the mean UV derived SFR, uncorrected for attenuation, we find that the average UV attenuation correction factor is \\~3. By binning the galaxy sample according to UV magnitude and colour, correlations between UV and X-ray emission are also examined. We find a strong positive correlation between ...

  14. EA-1183: Coal-fired Diesel Generator University of Alaska, Fairbanks, Alaska

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts for the proposal to provide funds to support the construction and operation of a coal-fired diesel generator at the University of Alaska, Fairbanks.

  15. North Star Science and Technology, LLC is a premier supplier of satellite transmitters for tracking

    E-Print Network [OSTI]

    line of battery powered and solar powered PTTs in a wide range of sizes, exclusively for birds. We for tracking birds and terrestrial animals. We make Argos Platform Transmitter Terminals (PTTs) as small as 9 Star is offering field downloadable GPS/VHF logging collars and Solar Powered GPS/VHF backpack loggers

  16. Integrated Geophysical Examination of the CRREL Permafrost Tunnel's Fairbanks Silt Units, Fox, Alaska

    E-Print Network [OSTI]

    Stillman, David E.

    C41A-0429 Integrated Geophysical Examination of the CRREL Permafrost Tunnel's Fairbanks Silt Units report on a recent geophysical survey of the U.S. Army Corps of Engineers' Cold Region Research geophysical signatures of permanently frozen loess and massive wedge ice. We exploited the increasing path

  17. WRF/Chem Simulations Over Fairbanks, AK Atmospheric Stability and Energy Correlation

    E-Print Network [OSTI]

    Moelders, Nicole

    1 WRF/Chem Simulations Over Fairbanks, AK Atmospheric Stability and Energy Correlation Analysis deposition. #12;3 The interactions and cycles of energy, water and trace gas components are also simulated, Alaska, that is characteristic of the Tanana valley; Specifically, Turbulent Kinetic Energy (TKE

  18. STAR

    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 Scienceand Requirements RecentlyElectronicResourcesjobsJuly throughR E Q U E N C4Safety STAR

  19. X-Ray and Radio Emission from UV-Selected Star Forming Galaxies at Redshifts 1.53.0 in the GOODS-North Field

    E-Print Network [OSTI]

    Naveen A. Reddy; Charles C. Steidel

    2004-01-21T23:59:59.000Z

    We have examined the stacked radio and X-ray emission from UV-selected galaxies spectroscopically confirmed to lie between redshifts 1.5 3.0 in the GOODS-North field to determine their average extinction and star formation rates (SFRs). The X-ray and radio data are obtained from the Chandra 2 Msec survey and the Very Large Array, respectively. There is a good agreement between the X-ray, radio, and de-reddened UV estimates of the average SFR for our sample of z~2 galaxies of ~50 solar masses per year, indicating that the locally-calibrated SFR relations appear to be statistically valid from redshifts 1.5 3.0. We find that UV-estimated SFRs (uncorrected for extinction) underestimate the bolometric SFRs as determined from the 2-10 keV X-ray luminosity by a factor of ~4.5 to 5.0 for galaxies over a large range in redshift from 1.0 < z < 3.5.

  20. Published by the Arctic Research Consortium of the United States 3535 College Road Suite 101 Fairbanks, AK 99709 Arctic Research at the University of Northern British Columbia

    E-Print Network [OSTI]

    Dery, Stephen

    · Fairbanks, AK 99709 Arctic Research at the University of Northern British Columbia Establishedin1994 Columbia Prince George Campus 3333 University Way Prince George, BC V2N 4Z9 Canada 250-960-5555 sderywithconsiderablepublicendorsementandenthusiasm,theUniver- sity of Northern British Columbia (UNBC) has grown into one of Canada's premier

  1. NorthWestern Energy (Gas)- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    NorthWestern Energy offers a variety of rebates for residential customers to make energy efficiency improvements in their existing homes. Customers who purchase an Energy Star programmable...

  2. NorthWestern Energy (Gas)- Residential Energy Efficiency Rebate Program (Montana)

    Broader source: Energy.gov [DOE]

    NorthWestern Energy offers a variety of rebates for residential customers to make energy efficiency improvements in their existing homes. Customers who purchase an Energy Star programmable...

  3. An apparatus to manipulate and identify individual Ba ions from bulk liquid Xe K. Twelker, S. Kravitz, M. Montero Dez, G. Gratta, W. Fairbank Jr., J. B. Albert, D. J. Auty, P. S. Barbeau, D.

    E-Print Network [OSTI]

    Piepke, Andreas G.

    . Kravitz, M. Montero Díez, G. Gratta, W. Fairbank Jr., J. B. Albert, D. J. Auty, P. S. Barbeau, D. Beck, C to manipulate and identify individual Ba ions from bulk liquid Xe K. Twelker,1 S. Kravitz,1 M. Montero Díez,1,a

  4. NorthStar Medical Technologies LLC

    National Nuclear Security Administration (NNSA)

    strategic sustainability performance plan Tc-99m metastable technetium-99 USFWS U.S. Fish and Wildlife Service USGS U.S. Geological Survey WDNR Wisconsin Department of Natural...

  5. NorthStar Medical Technologies LLC

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar541,9337,2AprilBigtoDepartment of

  6. Star Formation in the Gulf of Mexico

    E-Print Network [OSTI]

    Armond, Tina; Bally, John; Aspin, Colin

    2011-01-01T23:59:59.000Z

    We present an optical/infrared study of the dense molecular cloud, L935, dubbed "The Gulf of Mexico", which separates the North America and the Pelican nebulae, and we demonstrate that this area is a very active star forming region. A wide-field imaging study with interference filters has revealed 35 new Herbig-Haro objects in the Gulf of Mexico. A grism survey has identified 41 Halpha emission-line stars, 30 of them new. A small cluster of partly embedded pre-main sequence stars is located around the known LkHalpha 185-189 group of stars, which includes the recently erupting FUor HBC 722.

  7. Star Wreck

    E-Print Network [OSTI]

    Alexander Kusenko; Mikhail Shaposhnikov; P. G. Tinyakov; Igor I. Tkachev

    1998-02-03T23:59:59.000Z

    Electroweak models with low-energy supersymmetry breaking predict the existence of stable non-topological solitons, Q-balls, that can be produced in the early universe. The relic Q-balls can accumulate inside a neutron star and gradually absorb the baryons into the scalar condensate. This causes a slow reduction in the mass of the star. When the mass reaches a critical value, the neutron star becomes unstable and explodes. The cataclysmic destruction of the distant neutron stars may be the origin of the gamma-ray bursts.

  8. North Africa

    SciTech Connect (OSTI)

    Nicod, M.A.

    1981-10-01T23:59:59.000Z

    The total area covered by petroleum rights in the six countries described in this paper increased by more than 17% in 1980 compared to 1979. Joint venture agreements were finalized for 19 blocks over 94,000 km/sup 2/ in the Algerian venture. Although official information is scarce for Algeria and Libya, seismic activity probably increased in 1980 compared to 1979. Exploration drilling activity increased with 121 wildcats drilled compared to 93 during the previous year. This effort led to 40 discoveries, a 34.5% success ratio. Chevron was especially successful in wildcatting, with 6 oil discoveries for 8 wells drilled in the interior basins of Sudan. One Moroccan discovery can be considered as a highlight: the BRPM Meskala 101 well in the Essaouira basin found an apparently large amount of gas in Triassic sandstones. This discovery deserves special attention, since the gas has been found in Triassic pays rather than in the usual Jurassic pays in the Essaouira basin. Oil production in North Africa decreased from about 13.5% in 1980, with about 3,405,000 barrels of oil per day compared to 3,939,500 barrels of oil per day in 1979. When oil output strongly decreased in Algeria (-16.4%) and Libya (-15.6%), Tunisian production peaked at 116,287 barrels of oil per day and Egypt production also peaked at 584,148 barrels of oil per day. Total gas production in 1980 strongly declined from 44%, mostly due to the decline of the Algerian gas production. 8 figures, 40 tables.

  9. TRANSPORTATION ISSUES IN THE DELIVERY OF GTL PRODUCTS FROM ALASKAN NORTH SLOPE TO MARKET

    SciTech Connect (OSTI)

    Godwin Chukwu

    2004-01-01T23:59:59.000Z

    The Alaskan North Slope (ANS) is one of the largest hydrocarbon reserves in the United States where Gas-to-Liquids (GTL) technology can be successfully implemented. The proven and recoverable reserves of conventional natural gas in the developed and undeveloped fields in the Alaskan North Slope (ANS) are estimated to be 38 trillion standard cubic feet (TCF) and estimates of additional undiscovered gas reserves in the Arctic field range from 64 TCF to 142 TCF. Because the domestic gas market in the continental United States is located thousands of miles from the ANS, transportation of the natural gas from the remote ANS to the market is the key issue in effective utilization of this valuable and abundant resource. The focus of this project is to study the operational challenges involved in transporting the gas in converted liquid (GTL) form through the existing Trans Alaska Pipeline System (TAPS). A three-year, comprehensive research program was undertaken by the Petroleum Development Laboratory, University of Alaska Fairbanks, under cooperative agreement No. DE-FC26-98FT40016 to study the feasibility of transporting GTL products through TAPS. Cold restart of TAPS following an extended winter shutdown and solids deposition in the pipeline were identified as the main transportation issues in moving GTL products through the pipeline. The scope of work in the current project (Cooperative Agreement No. DE-FC26-01NT41248) included preparation of fluid samples for the experiments to be conducted to augment the comprehensive research program.

  10. Forestry Policies (North Dakota)

    Broader source: Energy.gov [DOE]

    North Dakota forests are managed by the North Dakota State Forest Service. In 2010 the State issued its "Statewide Assessment of Forest Resources and Forest Resource Strategy", which includes...

  11. Forestry Policies (North Carolina)

    Broader source: Energy.gov [DOE]

    North Carolina features almost 18 million acres of forested land within the state. The North Carolina Forest Service (http://ncforestservice.gov/) manages the State's forest lands, including those...

  12. North Platte Olbrich Botanical

    E-Print Network [OSTI]

    Sheridan, Jennifer

    ! ! ! ! ! ! ! ! ! ! ! ! Reindahl Park Sycamore Park Hie- stand Park M.A.T.C. M.A.T.C. Athletic Complex North Platte Kennedy Park not enter--view from the bike/ hiking trail that lies along the creek. 2. North Platte. The North Platte

  13. RHIC | STAR Detector

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

    about the collision. STAR TPC The Heart of STAR STAR's "heart" is the Time Projection Chamber which tracks and identifies particles emerging from heavy ion collisions. As each...

  14. North Carolina Capital Access Program (North Carolina)

    Broader source: Energy.gov [DOE]

    The North Carolina Capital Access Program provides matching reserve funds for business loans that are beyond the traditional lending means of a lender’s usual standards. The average CAP loan is ...

  15. One North Carolina Fund (North Carolina)

    Broader source: Energy.gov [DOE]

    The One North Carolina Fund, directed by the Commerce Finance Center, helps recruit and expand jobs in high-value industries deemed vital to the state. State appropriations replenish the Fund and...

  16. Chameleon stars

    SciTech Connect (OSTI)

    Dzhunushaliev, Vladimir [Institute for Basic Research, Eurasian National University, Astana, 010008 (Kazakhstan); Institute of Physicotechnical Problems and Material Science of the NAS of the Kyrgyz Republic, 265 a, Chui Street, Bishkek, 720071 (Kyrgyzstan); Folomeev, Vladimir [Institute of Physicotechnical Problems and Material Science of the NAS of the Kyrgyz Republic, 265 a, Chui Street, Bishkek, 720071 (Kyrgyzstan); Singleton, Douglas [Institute for Basic Research, Eurasian National University, Astana, 010008 (Kazakhstan); Physics Department, CSU Fresno, Fresno, California 93740-8031 (United States)

    2011-10-15T23:59:59.000Z

    We consider a gravitating spherically symmetric configuration consisting of a scalar field nonminimally coupled to ordinary matter in the form of a perfect fluid. For this system we find static, regular, asymptotically flat solutions for both relativistic and nonrelativistic cases. It is shown that the presence of the nonminimal interaction leads to substantial changes both in the radial matter distribution of the star and in the star's total mass. A simple stability test indicates that, for the choice of parameters used in the paper, the solutions are unstable.

  17. Star Power

    ScienceCinema (OSTI)

    None

    2014-11-18T23:59:59.000Z

    The U.S. Department of Energy's Princeton Plasma Physics Laboratory has released ''Star Power,'' a new informational video that uses dramatic and beautiful images and thought-provoking interviews to highlight the importance of the Laboratory's research into magnetic fusion.

  18. Star Power

    SciTech Connect (OSTI)

    None

    2014-10-17T23:59:59.000Z

    The U.S. Department of Energy's Princeton Plasma Physics Laboratory has released ''Star Power,'' a new informational video that uses dramatic and beautiful images and thought-provoking interviews to highlight the importance of the Laboratory's research into magnetic fusion.

  19. Renaissance Zones (North Dakota)

    Broader source: Energy.gov [DOE]

    Renaissance Zones allow qualifying businesses and individuals to claim one or more tax incentives for purchasing, leasing, or making improvements to real property located in a North Dakota...

  20. Middle East & North Africa

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

    West Bank and Gaza notes & data Yemen brief | data North Africa Algeria brief | data Egypt brief | data Libya brief | data Morocco notes & data Sudan and South Sudan brief |...

  1. Energy Star

    E-Print Network [OSTI]

    Reihl, K.; Tullos, A.

    2012-01-01T23:59:59.000Z

    is a joint program of: ? U.S. Environmental Protection Agency (EPA) ? U.S. Department of Energy (DOE) ? Mission: ? ?Help us all save money and protect the environment through energy efficient products and practices.? ? History: ? 1992 ? Energy... Star Label introduced for energy-efficient products ? Expanded to include technical information & tools ? Website: www.energystar.gov ESL-KT-12-10-08 CATEE 2012: Clean Air Through Energy Efficiency Conference, Galveston, TX, October 9-11, 2012...

  2. Energy Policy Commission (North Dakota)

    Broader source: Energy.gov [DOE]

    Created in 2007 by the North Dakota Legislative Assembly, the EmPower North Dakota Commission designed a comprehensive energy policy for the state of North Dakota. Since 2007 the Commission has...

  3. North Terrace campus Self-guided Tour

    E-Print Network [OSTI]

    WILLS HORACE LAMB DARLING OLIPHANT BADGER SANTOS PETROL ENG ENGINEERING NORTH ENG SOUTH NORTH TERRACE

  4. Dam Safety (North Carolina)

    Broader source: Energy.gov [DOE]

    North Carolina Administrative Code Title 15A, Subchapter 2K lays out further regulations for the design, approval, construction, maintenance, and inspection of dams to ensure public safety and...

  5. Spectral Modeling Hot Star Winds

    E-Print Network [OSTI]

    Cohen, David

    supernovaeProduce supernovae (neutron stars, black holes)(neutron stars, black holes) ·· Found near birth

  6. Albany, OR * Fairbanks, AK * Morgantown...

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

    Most Promising Sequestration Formations in the Rocky Mountain Region Background Carbon capture and storage (CCS) technologies offer the potential for reducing CO2 emissions without...

  7. Albany, OR * Fairbanks, AK * Morgantown...

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

    the Triassic Newark Basin of New York & New Jersey for Geologic Storage of Carbon Dioxide Background Carbon capture and storage (CCS) technologies offer the potential for reducing...

  8. Draft Environmental Assessment for NorthStar | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742EnergyOn AprilA groupTubahq.na.gov Office ofDepartment of EnergyAdministration Environmental

  9. OpenEI Community - Open Data + north stars

    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, searchOfRoseConcernsCompany Oil and GasOff the GridHomeWrap-upAdministration's

  10. North Star Electric Coop, 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 I Geothermal Pwer PlantMunhall,Missouri: Energy ResourcesGranby,Plains, Oregon:Sea, NewSt. Paul,

  11. Microsoft Word - CX-NorthBonneville-RossNorthBonneville-Troutdale...

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

    4, 2011 REPLY TO ATTN OF: KEP-4 SUBJECT: Environmental Clearance Memorandum Erich Orth Civil Engineer - TEP-TPP-3 Proposed Action: North Bonneville-Ross 1 230-kV, North...

  12. Natural Gas Rules (North Carolina)

    Broader source: Energy.gov [DOE]

    These rules apply to any gas utility operating within the State of North Carolina under the jurisdiction of the North Carolina Utilities Commission and also to interstate natural gas companies...

  13. DELIVERABLE Central North Sea

    E-Print Network [OSTI]

    Haszeldine, Stuart

    International Energy Agency Energy Technology Perspectives 2012 #12;4 Central North Sea ­ CO2 Storage Hub within the UK and EU. CCS development zones can also attract new energy intensive industries to locate of intermittency which is inevitable with wind power, thereby helping to address the need for energy security

  14. North America Europe Central &

    E-Print Network [OSTI]

    Johnson, Matthew

    Per capita consumption Population (100 millions) 0 5 10 15 20 25 30 35 North America Western Europe Per capita consumption Population (100 millions) 0 5 10 15 20 25 30 35 #12;2 % of habitat alteration from% of habitat alteration from per capita consumptionper capita consumption #s above bars are m2 per

  15. South Dakota North Platte R.

    E-Print Network [OSTI]

    South Dakota Nebraska Index map North Platte R. South Platte R. Dismal R. Platte R. Study area 0 0 1 KILOMETER 1 MILE Scotts Bluff County Tri-St ate Canal Mitchell Canal North Platte River Enterprise 2002 Prepared in cooperation with the NORTH PLATTE NATURAL RESOURCES DISTRICT SIGNIFICANT FINDINGS

  16. North Texas Undergraduate Psychology Research

    E-Print Network [OSTI]

    O'Toole, Alice J.

    ) 2.602 The University of Texas at Dallas 800 West Campbell Road Ricahrdson, Texas 75080 For moreNorth Texas Undergraduate Psychology Research Conference The North Texas Undergraduate Psychology, you will present to faculty, students, and members of the community in the north Texas area

  17. From Neutron Stars to Strange Stars

    E-Print Network [OSTI]

    Fridolin Weber

    2001-12-04T23:59:59.000Z

    This paper discusses several most intruigung astrophysical implications connected with the possible absolute stability of strange quark matter.This is followed by a discussion of two astrophysical signals that may point at the existence of quark matter in both isolated neutron stars as well as in neutron stars in low-mass x-ray binaries (LMXBs).

  18. Virginia Nuclear Profile - North Anna

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

    North Anna" "Unit","Summer capacity (mw)","Net generation (thousand mwh)","Summer capacity factor (percent)","Type","Commercial operation date","License expiration date"...

  19. Ground Water Protection (North Dakota)

    Broader source: Energy.gov [DOE]

    North Dakota has a degradation prevention program for groundwater protection, with standards established by the Department of Health. This section addresses groundwater standards, quality...

  20. Vision North Texas

    E-Print Network [OSTI]

    Walz, K.

    2011-01-01T23:59:59.000Z

    , 2011 ? ? FW D 16 County Region for Vision North Texas 5.3M people in 2000; 6.5M in 2010; 9.5M in 2030; 11.7M in 2050 ESL-KT-11-11-18 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 ESL-KT-11-11-18 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 ESL-KT-11..., Dallas, Texas, Nov. 7 ? 9, 2011 ESL-KT-11-11-18 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 ESL-KT-11-11-18 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 2030 ?Business as usual? households/acre ESL-KT-11-11-18 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011...

  1. Nuclear Power Plant Construction Support (North Carolina)

    Broader source: Energy.gov [DOE]

    Language in the North Carolina Renewable Energy and Energy Efficiency Portfolio Standard allows a utility to have incurred costs reviewed by the North Carolina Utilities Commission (NCUC)...

  2. Neutrostriction in Neutron stars

    E-Print Network [OSTI]

    V. K. Ignatovich

    2006-06-29T23:59:59.000Z

    It is demonstrated that not only gravity, but also neutrostriction forces due to optical potential created by coherent elastic neutron-neutron scattering can hold a neutron star together. The latter forces can be stronger than gravitational ones. The effect of these forces on mass, radius and structure of the neutron star is estimated.

  3. North Central Elec Coop, Inc (North Dakota) | 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 America Drilling Fluids MarketNorth Carolina MunNorth

  4. Electrically charged compact stars

    E-Print Network [OSTI]

    Subharthi Ray; Manuel Malheiro; Jose' P. S. Lemos; Vilson T. Zanchin

    2006-04-17T23:59:59.000Z

    We review here the classical argument used to justify the electrical neutrality of stars and show that if the pressure and density of the matter and gravitational field inside the star are large, then a charge and a strong electric field can be present. For a neutron star with high pressure (~ 10^{33} to 10^{35} dynes /cm^2) and strong gravitational field (~ 10^{14} cm/s^2), these conditions are satisfied. The hydrostatic equation which arises from general relativity, is modified considerably to meet the requirements of the inclusion of the charge. In order to see any appreciable effect on the phenomenology of the neutron stars, the charge and the electrical fields have to be huge (~ 10^{21} Volts/cm). These stars are not however stable from the viewpoint that each charged particle is unbound to the uncharged particles, and thus the system collapses one step further to a charged black hole

  5. Resource Characterization and Quantification of Natural Gas-Hydrate and Associated Free-Gas Accumulations in the Prudhoe Bay - Kuparuk River Area on the North Slope of Alaska

    SciTech Connect (OSTI)

    Shirish Patil; Abhijit Dandekar

    2008-12-31T23:59:59.000Z

    Natural gas hydrates have long been considered a nuisance by the petroleum industry. Hydrates have been hazards to drilling crews, with blowouts a common occurrence if not properly accounted for in drilling plans. In gas pipelines, hydrates have formed plugs if gas was not properly dehydrated. Removing these plugs has been an expensive and time-consuming process. Recently, however, due to the geologic evidence indicating that in situ hydrates could potentially be a vast energy resource of the future, research efforts have been undertaken to explore how natural gas from hydrates might be produced. This study investigates the relative permeability of methane and brine in hydrate-bearing Alaska North Slope core samples. In February 2007, core samples were taken from the Mt. Elbert site situated between the Prudhoe Bay and Kuparuk oil fields on the Alaska North Slope. Core plugs from those core samples have been used as a platform to form hydrates and perform unsteady-steady-state displacement relative permeability experiments. The absolute permeability of Mt. Elbert core samples determined by Omni Labs was also validated as part of this study. Data taken with experimental apparatuses at the University of Alaska Fairbanks, ConocoPhillips laboratories at the Bartlesville Technology Center, and at the Arctic Slope Regional Corporation's facilities in Anchorage, Alaska, provided the basis for this study. This study finds that many difficulties inhibit the ability to obtain relative permeability data in porous media-containing hydrates. Difficulties include handling unconsolidated cores during initial core preparation work, forming hydrates in the core in such a way that promotes flow of both brine and methane, and obtaining simultaneous two-phase flow of brine and methane necessary to quantify relative permeability using unsteady-steady-state displacement methods.

  6. Planets of young stars

    E-Print Network [OSTI]

    E. W. Guenther; E. Esposito

    2007-01-10T23:59:59.000Z

    Since the first massive planet in a short period orbit was discovered, the question arised how such an object could have formed. There are basically two formation scenarios: migration due to planet-disk or planet-planet interaction. Which of the two scenarios is more realistic can be found out by observing short-period planets of stars with an age between 10E7 and 10E8 yrs. The second aim of the survey is to find out how many planets originally formed, and how many of these are destroyed in the first Gyrs: Do most young, close-in planets evaporate, or spiral into the host stars? In here we report on the first results of a radial-velocity search program for planets of young stars which we began in 2004. Using HARPS, we currently monitor 85 stars with ages between 10E7 and 10E8 yrs. We show that the detection of planets of young stars is possible. Up to now, we have identified 3 planet-candidates. Taking this result together with the results of other surveys, we conclude that the frequency of massive-short period planets of young stars is not dramatically higher than that of old stars.

  7. Common Pipeline Carriers (North Dakota)

    Broader source: Energy.gov [DOE]

    Any entity that owns, operates, or manages a pipeline for the purpose of transporting crude petroleum, gas, coal, or carbon dioxide within or through the state of North Dakota, or is engaged in the...

  8. North Richmond: An American Story

    E-Print Network [OSTI]

    rogers, robert h

    2011-01-01T23:59:59.000Z

    paid for by the nearby landfill – which emits airborne andCertainly, being near a landfill, near a sewer treatmenttransfer station and landfill on North Richmond’s coast. The

  9. Water Resource Districts (North Dakota)

    Broader source: Energy.gov [DOE]

    Water Resource Districts are created throughout the state of North Dakota to manage, conserve, protect, develop, and control water resources. Each District will be governed by a Water Resource...

  10. Climate Action Plan (North Carolina)

    Broader source: Energy.gov [DOE]

    The North Carolina Department of Environmental and Natural Resources (DENR) has established a priority in the 2009 - 2013 Strategic Plan to respond to climate change using both mitigation and...

  11. North City Water Reclamation Plant

    E-Print Network [OSTI]

    Prevedouros, Panos D.

    -Site Cogeneration Methane Power Plant Methane piped in from: Miramar LandfillMiramar Landfill Metropolitan Biosolids Covered Subgrade basins Malfunction in Point Loma South Bay North City Metro Biosolids Center WW Pumping

  12. Yellowstone River Compact (North Dakota)

    Broader source: Energy.gov [DOE]

    The Yellowstone River Compact, agreed to by the States of Montana, North Dakota, and Wyoming, provides for an equitable division and apportionment of the waters of the Yellowstone River, as well as...

  13. North American LNG Project Sourcebook

    SciTech Connect (OSTI)

    NONE

    2007-06-15T23:59:59.000Z

    The report provides a status of the development of LNG Import Terminal projects in North America, and includes 1-2 page profiles of 63 LNG projects in North America which are either in operation, under construction, or under development. For each project, the sourcebook provides information on the following elements: project description, project ownership, project status, projected operation date, storage capacity, sendout capacity, and pipeline interconnection.

  14. Hypernuclear Physics for Neutron Stars

    E-Print Network [OSTI]

    Jurgen Schaffner-Bielich

    2008-01-24T23:59:59.000Z

    The role of hypernuclear physics for the physics of neutron stars is delineated. Hypernuclear potentials in dense matter control the hyperon composition of dense neutron star matter. The three-body interactions of nucleons and hyperons determine the stiffness of the neutron star equation of state and thereby the maximum neutron star mass. Two-body hyperon-nucleon and hyperon-hyperon interactions give rise to hyperon pairing which exponentially suppresses cooling of neutron stars via the direct hyperon URCA processes. Non-mesonic weak reactions with hyperons in dense neutron star matter govern the gravitational wave emissions due to the r-mode instability of rotating neutron stars.

  15. Investigation of the North Brazil Current retroflection and North Equatorial Countercurrent variability

    E-Print Network [OSTI]

    Investigation of the North Brazil Current retroflection and North Equatorial Countercurrent to investigate the temporal and spatial variability of the North Brazil Current (NBC) retroflection and the North Brazil Current retroflection and North Equatorial Countercurrent variability, Geophys. Res. Lett., 31, L

  16. Strangeness in Neutron Stars

    E-Print Network [OSTI]

    Fridolin Weber; Alexander Ho; Rodrigo P. Negreiros; Philip Rosenfield

    2006-04-20T23:59:59.000Z

    It is generally agreed on that the tremendous densities reached in the centers of neutron stars provide a high-pressure environment in which several intriguing particles processes may compete with each other. These range from the generation of hyperons to quark deconfinement to the formation of kaon condensates and H-matter. There are theoretical suggestions of even more exotic processes inside neutron stars, such as the formation of absolutely stable strange quark matter. In the latter event, neutron stars would be largely composed of strange quark matter possibly enveloped in a thin nuclear crust. This paper gives a brief overview of these striking physical possibilities with an emphasis on the role played by strangeness in neutron star matter, which constitutes compressed baryonic matter at ultra-high baryon number density but low temperature which is no accessible to relativistic heavy ion collision experiments.

  17. Masers and star formation

    E-Print Network [OSTI]

    Vincent L. Fish

    2007-04-02T23:59:59.000Z

    Recent observational and theoretical advances concerning astronomical masers in star forming regions are reviewed. Major masing species are considered individually and in combination. Key results are summarized with emphasis on present science and future prospects.

  18. STAR Facility Tritium Accountancy

    SciTech Connect (OSTI)

    R. J. Pawelko; J. P. Sharpe; B. J. Denny

    2007-09-01T23:59:59.000Z

    The Safety and Tritium Applied Research (STAR) facility has been established to provide a laboratory infrastructure for the fusion community to study tritium science associated with the development of safe fusion energy and other technologies. STAR is a radiological facility with an administrative total tritium inventory limit of 1.5g (14,429 Ci) [1]. Research studies with moderate tritium quantities and various radionuclides are performed in STAR. Successful operation of the STAR facility requires the ability to receive, inventory, store, dispense tritium to experiments, and to dispose of tritiated waste while accurately monitoring the tritium inventory in the facility. This paper describes tritium accountancy in the STAR facility. A primary accountancy instrument is the tritium Storage and Assay System (SAS): a system designed to receive, assay, store, and dispense tritium to experiments. Presented are the methods used to calibrate and operate the SAS. Accountancy processes utilizing the Tritium Cleanup System (TCS), and the Stack Tritium Monitoring System (STMS) are also discussed. Also presented are the equations used to quantify the amount of tritium being received into the facility, transferred to experiments, and removed from the facility. Finally, the STAR tritium accountability database is discussed.

  19. STAR facility tritium accountancy

    SciTech Connect (OSTI)

    Pawelko, R. J.; Sharpe, J. P.; Denny, B. J. [Idaho National Laboratory, P.O. Box 1625, Idaho Falls, ID 83415 (United States)

    2008-07-15T23:59:59.000Z

    The Safety and Tritium Applied Research (STAR) facility has been established to provide a laboratory infrastructure for the fusion community to study tritium science associated with the development of safe fusion energy and other technologies. STAR is a radiological facility with an administrative total tritium inventory limit of 1.5 g (14,429 Ci) [1]. Research studies with moderate tritium quantities and various radionuclides are performed in STAR. Successful operation of the STAR facility requires the ability to receive, inventory, store, dispense tritium to experiments, and to dispose of tritiated waste while accurately monitoring the tritium inventory in the facility. This paper describes tritium accountancy in the STAR facility. A primary accountancy instrument is the tritium Storage and Assay System (SAS): a system designed to receive, assay, store, and dispense tritium to experiments. Presented are the methods used to calibrate and operate the SAS. Accountancy processes utilizing the Tritium Cleanup System (TCS), and the Stack Tritium Monitoring System (STMS) are also discussed. Also presented are the equations used to quantify the amount of tritium being received into the facility, transferred to experiments, and removed from the facility. Finally, the STAR tritium accountability database is discussed. (authors)

  20. Strangeness in Neutron Stars

    E-Print Network [OSTI]

    Fridolin Weber

    2000-08-23T23:59:59.000Z

    It is generally agreed on that the tremendous densities reached in the centers of neutron stars provide a high-pressure environment in which numerous novel particles processes are likely to compete with each other. These processes range from the generation of hyperons to quark deconfinement to the formation of kaon condensates and H-matter. There are theoretical suggestions of even more exotic processes inside neutron stars, such as the formation of absolutely stable strange quark matter, a configuration of matter even more stable than the most stable atomic nucleus, iron. In the latter event, neutron stars would be largely composed of pure quark matter, eventually enveloped in a thin nuclear crust. No matter which physical processes are actually realized inside neutron stars, each one leads to fingerprints, some more pronounced than others though, in the observable stellar quantities. This feature combined with the unprecedented progress in observational astronomy, which allows us to see vistas with remarkable clarity that previously were only imagined, renders neutron stars to nearly ideal probes for a wide range of physical studies, including the role of strangeness in dense matter.

  1. Dark Stars: A Review

    E-Print Network [OSTI]

    Freese, Katherine; Spolyar, Douglas; Valluri, Monica

    2015-01-01T23:59:59.000Z

    Dark Stars (DS) are stellar objects made (almost entirely) of ordinary atomic material but powered by the heat from Dark Matter (DM) annihilation (rather than by fusion). Weakly Interacting Massive Particles (WIMPs), among the best candidates for DM, can be their own antimatter and can accumulate inside the star, with their annihilation products thermalizing with and heating the DS. The resulting DSs are in hydrostatic and thermal equilibrium. The first phase of stellar evolution in the history of the Universe may have been dark stars. Though DM constituted only $10^6 M_\\odot$), very bright ($>10^9 L_\\odot$), and potentially detectable with the James Webb Space Telescope (JWST). Once the DM runs out and the dark star dies, it may collapse to a black hole; thus DSs can provide seeds for the supermassive black holes observed throughout the Universe and at early times. Other sites for dark star formation exist in the Universe today in regions of high dark matter density such as the centers of galaxies. The curre...

  2. North American SynchroPhasor Initiative (NASPI) Technical Report...

    Energy Savers [EERE]

    the North American SynchroPhasor Initiative, a collaboration between the North American electric industry (utilities, grid operators, vendors and consultants), the North American...

  3. Biocorrosive Thermophilic Microbial Communities in Alaskan North Slope Oil Facilities

    E-Print Network [OSTI]

    Duncan, Kathleen E.

    2010-01-01T23:59:59.000Z

    in Alaskan North Slope Oil Facilities Kathleen E. Duncan,in Alaskan North Slope oil production facilities. Title:in Alaskan North Slope Oil Facilities Authors: Kathleen E.

  4. Pre-main sequence stars, emission stars and recent star formation in the Cygnus Region

    E-Print Network [OSTI]

    Bhavya B; Blesson Mathew; Annapurni Subramaniam

    2008-04-09T23:59:59.000Z

    The recent star formation history in the Cygnus region is studied using 5 clusters (IC 4996, NGC 6910, Berkeley 87, Biurakan 2 and Berkeley 86). The optical data from the literature are combined with the 2MASS data to identify the pre-main sequence (pre-MS) stars as stars with near IR excess. We identified 93 pre-MS stars and 9 stars with H$_\\alpha$ emission spectra. The identified pre-MS stars are used to estimate the turn-on age of the clusters. The duration of star formation was estimated as the difference between the turn-on and the turn-off age. We find that, NGC 6910 and IC 4996 have been forming stars continuously for the last 6 -- 7 Myr, Berkeley 86 and Biurakan 2 for 5 Myr and Berkeley 87 for the last 2 Myr. This indicates that the Cygnus region has been actively forming stars for the last 7 Myr, depending on the location. 9 emission line stars were identified in 4 clusters, using slit-less spectra (Be 87 - 4 stars; Be 86 - 2 stars, NGC 6910 - 2 stars and IC 4996 - 1 star). The individual spectra were obtained and analysed to estimate stellar as well as disk properties. All the emission stars are in the MS, well below the turn-off, in the core hydrogen burning phase. These stars are likely to be Classical Be (CBe) stars. Thus CBe phenomenon can be found in very young MS stars which are just a few (2 -- 7) Myrs old. This is an indication that CBe phenomenon need not be an evolutionary effect.

  5. Spectropolarimetry of cool stars

    E-Print Network [OSTI]

    P. Petit

    2007-03-27T23:59:59.000Z

    In recent years, the development of spectropolarimetric techniques deeply modified our knowledge of stellar magnetism. In the case of solar-type stars, the challenge is to measure a geometrically complex field and determine its evolution over very different time frames. In this article, I summarize some important observational results obtained in this field over the last two decades and detail what they tell us about the dynamo processes that orchestrate the activity of cool stars. I also discuss what we learn from such observations about the ability of magnetic fields to affect the formation and evolution of Sun-like stars. Finally, I evoke promising directions to be explored in the coming years, thanks to the advent of a new generation of instruments specifically designed to progress in this domain.

  6. Isolating Triggered Star Formation

    SciTech Connect (OSTI)

    Barton, Elizabeth J.; Arnold, Jacob A.; /UC, Irvine; Zentner, Andrew R.; /KICP, Chicago /Chicago U., EFI; Bullock, James S.; /UC, Irvine; Wechsler, Risa H.; /KIPAC, Menlo

    2007-09-12T23:59:59.000Z

    Galaxy pairs provide a potentially powerful means of studying triggered star formation from galaxy interactions. We use a large cosmological N-body simulation coupled with a well-tested semi-analytic substructure model to demonstrate that the majority of galaxies in close pairs reside within cluster or group-size halos and therefore represent a biased population, poorly suited for direct comparison to 'field' galaxies. Thus, the frequent observation that some types of galaxies in pairs have redder colors than 'field' galaxies is primarily a selection effect. We use our simulations to devise a means to select galaxy pairs that are isolated in their dark matter halos with respect to other massive subhalos (N= 2 halos) and to select a control sample of isolated galaxies (N= 1 halos) for comparison. We then apply these selection criteria to a volume-limited subset of the 2dF Galaxy Redshift Survey with M{sub B,j} {le} -19 and obtain the first clean measure of the typical fraction of galaxies affected by triggered star formation and the average elevation in the star formation rate. We find that 24% (30.5 %) of these L* and sub-L* galaxies in isolated 50 (30) h{sup -1} kpc pairs exhibit star formation that is boosted by a factor of {approx}> 5 above their average past value, while only 10% of isolated galaxies in the control sample show this level of enhancement. Thus, 14% (20 %) of the galaxies in these close pairs show clear triggered star formation. Our orbit models suggest that 12% (16%) of 50 (30) h{sup -1} kpc close pairs that are isolated according to our definition have had a close ({le} 30 h{sup -1} kpc) pass within the last Gyr. Thus, the data are broadly consistent with a scenario in which most or all close passes of isolated pairs result in triggered star formation. The isolation criteria we develop provide a means to constrain star formation and feedback prescriptions in hydrodynamic simulations and a very general method of understanding the importance of triggered star formation in a cosmological context.

  7. Synthetic guide star generation

    DOE Patents [OSTI]

    Payne, Stephen A.; Page, Ralph H.; Ebbers, Christopher A.; Beach, Raymond J.

    2004-03-09T23:59:59.000Z

    A system for assisting in observing a celestial object and providing synthetic guide star generation. A lasing system provides radiation at a frequency at or near 938 nm and radiation at a frequency at or near 1583 nm. The lasing system includes a fiber laser operating between 880 nm and 960 nm and a fiber laser operating between 1524 nm and 1650 nm. A frequency-conversion system mixes the radiation and generates light at a frequency at or near 589 nm. A system directs the light at a frequency at or near 589 nm toward the celestial object and provides synthetic guide star generation.

  8. Synthetic guide star generation

    DOE Patents [OSTI]

    Payne, Stephen A. (Castro Valley, CA) [Castro Valley, CA; Page, Ralph H. (Castro Valley, CA) [Castro Valley, CA; Ebbers, Christopher A. (Livermore, CA) [Livermore, CA; Beach, Raymond J. (Livermore, CA) [Livermore, CA

    2008-06-10T23:59:59.000Z

    A system for assisting in observing a celestial object and providing synthetic guide star generation. A lasing system provides radiation at a frequency at or near 938 nm and radiation at a frequency at or near 1583 nm. The lasing system includes a fiber laser operating between 880 nm and 960 nm and a fiber laser operating between 1524 nm and 1650 nm. A frequency-conversion system mixes the radiation and generates light at a frequency at or near 589 nm. A system directs the light at a frequency at or near 589 nm toward the celestial object and provides synthetic guide star generation.

  9. A Star on Earth

    ScienceCinema (OSTI)

    Prager, Stewart; Zwicker, Andrew; Hammet, Greg; Tresemer, Kelsey; Diallo, Ahmed

    2014-06-06T23:59:59.000Z

    At the Energy Department's Princeton Plasma Physics Lab, scientists are trying to accomplish what was once considered the realm of science fiction: create a star on Earth. The National Spherical Torus Experiment (NSTX) is a magnetic fusion device that is used to study the physics principles of spherically shaped plasmas -- hot ionized gases in which, under the right conditions, nuclear fusion will occur. Fusion is the energy source of the sun and all of the stars. Not just limited to theoretical work, the NSTX is enabling cutting-edge research to develop fusion as a future energy source.

  10. A Star on Earth

    SciTech Connect (OSTI)

    Prager, Stewart; Zwicker, Andrew; Hammet, Greg; Tresemer, Kelsey; Diallo, Ahmed

    2014-03-05T23:59:59.000Z

    At the Energy Department's Princeton Plasma Physics Lab, scientists are trying to accomplish what was once considered the realm of science fiction: create a star on Earth. The National Spherical Torus Experiment (NSTX) is a magnetic fusion device that is used to study the physics principles of spherically shaped plasmas -- hot ionized gases in which, under the right conditions, nuclear fusion will occur. Fusion is the energy source of the sun and all of the stars. Not just limited to theoretical work, the NSTX is enabling cutting-edge research to develop fusion as a future energy source.

  11. CFL Manufacturers: ENERGY STAR Letters

    Broader source: Energy.gov [DOE]

    DOE issued letters to 25 manufacturers of compact fluorescent lamps (CFLs) involving various models after PEARL Cycle 9 testing indicated that the models do not meet the ENERGY STAR specification and, therefore, are disqualified from the ENERGY STAR Program.

  12. Lithium in LMC carbon stars

    E-Print Network [OSTI]

    D. Hatzidimitriou; D. H. Morgan; R. D. Cannon; B. F. W. Croke

    2003-04-16T23:59:59.000Z

    Nineteen carbon stars that show lithium enrichment in their atmospheres have been discovered among a sample of 674 carbon stars in the Large Magellanic Cloud. Six of the Li-rich carbon stars are of J-type, i.e. with strong 13C isotopic features. No super-Li-rich carbon stars were found. The incidence of lithium enrichment among carbon stars in the LMC is much rarer than in the Galaxy, and about five times more frequent among J-type than among N-type carbon stars. The bolometric magnitudes of the Li-rich carbon stars range between -3.3 and -5.7. Existing models of Li-enrichment via the hot bottom burning process fail to account for all of the observed properties of the Li-enriched stars studied here.

  13. North South Forum Boniface Kiteme

    E-Print Network [OSTI]

    Richner, Heinz

    : Overview and Introduction #12;Graph created from the data in the BP 2006 statistical review 4. Increasing (higher) energy consumption and prices I: Overview and Introduction #12;5. Climate change I: Overview: Basically and largely sectoral Greatly north driven through funding arrangements 4. The Reality Tertiary

  14. North American Cross-Border

    E-Print Network [OSTI]

    sourced steam coal burnt in power plants in the northeastern portion of the United States. As coal mining of electrical power from Canada appears to have little impact on the production of steam coal in VirginiaNorth American Cross-Border Electricity Trade Ian M. Loomis Virginia Center for Coal and Energy

  15. Zone Choices NorthFairwayRd.

    E-Print Network [OSTI]

    Collins, Gary S.

    .Valley Rd. Illinois St. To Palouse, Hwy. 27 North Fairway Rd. Valley Rd. Basketball Courts To WSU Visitor

  16. High-gravity central stars

    E-Print Network [OSTI]

    Thomas Rauch

    2006-07-11T23:59:59.000Z

    NLTE spectral analyses of high-gravity central stars by means of state-of-the-art model atmosphere techniques provide information about the precursor AGB stars. The hydrogen-deficient post-AGB stars allow investigations on the intershell matter which is apparently exhibited at the stellar surface. We summarize recent results from imaging, spectroscopy, and spectropolarimetry.

  17. Energy generation in stars

    E-Print Network [OSTI]

    B. V. Vasiliev

    2001-10-29T23:59:59.000Z

    It is a current opinion that thermonuclear fusion is the main source of the star activity. It is shown below that this source is not unique. There is another electrostatic mechanism of the energy generation which accompanies thermonuclear fusion. Probably, this approach can solve the solar neutrino problem.

  18. Livingston Campus North and South Tower

    E-Print Network [OSTI]

    Livingston Campus North and South Tower General Instructions: · Print directions and name.7 miles). Continue on Route 18 North. · Follow the signs for Towers move in. From Garden State Parkway the Raritan River (approximately 3.7 miles). Continue on Route 18 North. · Follow the signs for Towers move in

  19. Competition and Reliability in North American Electricity Markets...

    Energy Savers [EERE]

    Electricity Markets Technical Workshop Competition and Reliability in North American Electricity Markets Technical Workshop Competition and Reliability in North American...

  20. Liquid Propane Injection Technology Conductive to Today's North...

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

    Technology Conductive to Today's North American Specification Liquid Propane Injection Technology Conductive to Today's North American Specification Liquid propane injection...

  1. Varieties of Cotton for North Texas.

    E-Print Network [OSTI]

    Dunkle, P. B. (Paul Burtch)

    1930-01-01T23:59:59.000Z

    .............. Lone Star ........... Rowden Ladd Acre yield. pounds in 1 c%Z?n Variety Rowden ................ Lone Star .............. Matchless E . E . Big Boll . Per cent lint .... M'annamaker I3ank Account . . ICleveland... ............................ ............... Cleveland's Rig Roll ................. Kasch's Improved ........................ Lone Star ............ Ferguson's Round Nose .................. Broadwell's 11 . J ...................... Early King .................. Mexican jig ~oll...

  2. University of Alaska Fairbanks Business Report

    E-Print Network [OSTI]

    Wagner, Diane

    Routine Unscheduled PMI 258 5,879 2 1,604 B. Billing Summary by Work Code: July 1 ­ December 31,777 7% PMI's $419,064 10% Urgent Callin's & Standby's (After hours) $12,814 0% $4,232,294 Maintenance & Repair 83% Renewal/ Replacement 7% PMI's 10% Urgent Callin's Standyby's 0% FS Business

  3. University of Alaska Fairbanks | 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 742EnergyOn AprilA group current C3E AmbassadorsUS-EU-Japan-JapanHighlyFrom left to right: Shannan

  4. University of Alaska Fairbanks Utility Development Plan

    E-Print Network [OSTI]

    Hartman, Chris

    LPSteamPerMlbs Steam Down Rate # HP Steam = #s LP Steam 1 Turbine3 Capacity kWPerHr Capacity Units Per Hr 9600 Turbine3 Capacity HPSteamPerHr HP Steam in 138 Turbine3 Capacity LPStmPerHr 25 # Extraction 78 Turbine3 Capacity Restraint % of Capacity Restraint Assumes Linear Relationship 1.0 except Jun, Jul, Aug

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

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are being directedAnnual SiteofEvaluating A PotentialJumpGerman AerospaceEfficiency Incentives andFVE BS

  6. Fairbanks Geothermal Energy Project | 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 YourTransport in RepresentativeDepartmentEnergy Factors Affecting PMUNuclearFAIR

  7. ENERGY STAR Webinar: Financing Energy Efficient Upgrades with...

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

    ENERGY STAR Webinar: Financing Energy Efficient Upgrades with ENERGY STAR ENERGY STAR Webinar: Financing Energy Efficient Upgrades with ENERGY STAR October 21, 2014 2:00PM to...

  8. ENERGY STAR Webinar: Financing Energy Efficient Upgrades with ENERGY STAR

    Broader source: Energy.gov [DOE]

    Hosted by ENERGY STAR, this webinar will show how public sector organizations are improving energy efficiency with innovative solutions to financial barriers.

  9. Triggered Star Formation in the Environment of Young Massive Stars

    E-Print Network [OSTI]

    M. Gritschneder; T. Naab; F. Heitsch; A. Burkert

    2006-09-26T23:59:59.000Z

    Recent observations with the Spitzer Space Telescope show clear evidence that star formation takes place in the surrounding of young massive O-type stars, which are shaping their environment due to their powerful radiation and stellar winds. In this work we investigate the effect of ionising radiation of massive stars on the ambient interstellar medium (ISM): In particular we want to examine whether the UV-radiation of O-type stars can lead to the observed pillar-like structures and can trigger star formation. We developed a new implementation, based on a parallel Smooth Particle Hydrodynamics code (called IVINE), that allows an efficient treatment of the effect of ionising radiation from massive stars on their turbulent gaseous environment. Here we present first results at very high resolution. We show that ionising radiation can trigger the collapse of an otherwise stable molecular cloud. The arising structures resemble observed structures (e.g. the pillars of creation in the Eagle Nebula (M16) or the Horsehead Nebula B33). Including the effect of gravitation we find small regions that can be identified as formation places of individual stars. We conclude that ionising radiation from massive stars alone can trigger substantial star formation in molecular clouds.

  10. Nuclear Star Clusters and Bulges

    E-Print Network [OSTI]

    Cole, David R

    2015-01-01T23:59:59.000Z

    Nuclear star clusters are among the densest stellar systems known and are common in both early- and late-type galaxies. They exhibit scaling relations with their host galaxy which may be related to those of supermassive black holes. These may therefore help us to unravel the complex physical processes occurring at the centres of galaxies. The properties of nuclear stellar systems suggest that their formation requires both dissipational and dissipationless processes. They have stellar populations of different ages, from stars as old as their host galaxy to young stars formed in the last 100 Myr. Therefore star formation must be happening either directly in the nuclear star cluster or in its vicinity. The secular processes that fuel the formation of pseudobulges very likely also contributes to nuclear star cluster growth.

  11. Spontaneous Scalarization and Boson Stars

    E-Print Network [OSTI]

    A. W. Whinnett

    2000-02-17T23:59:59.000Z

    We study spontaneous scalarization in Scalar-Tensor boson stars. We find that scalarization does not occur in stars whose bosons have no self-interaction. We introduce a quartic self-interaction term into the boson Lagrangian and show that when this term is large, scalarization does occur. Strong self-interaction leads to a large value of the compactness (or sensitivity) of the boson star, a necessary condition for scalarization to occur, and we derive an analytical expression for computing the sensitivity of a boson star in Brans-Dicke theory from its mass and particle number. Next we comment on how one can use the sensitivity of a star in any Scalar-Tensor theory to determine how its mass changes when it undergoes gravitational evolution. Finally, in the Appendix, we derive the most general form of the boson wavefunction that minimises the energy of the star when the bosons carry a U(1) charge.

  12. New Abundansec From Very Old Stars

    E-Print Network [OSTI]

    Hansen, T; Christlieb, N; Yong, D; Beers, T C; Andersen, J

    2015-01-01T23:59:59.000Z

    Metal-poor stars hold the fossil record of the Galactic chemical evolution and nucleosynthesis processes that took place at the earliest times in the history of our Galaxy. From detailed abundance studies of low mass, extremely metal-poor stars ([Fe/H] capture. The sample includes some of the most metal-poor stars ([Fe/H] capture elements, and also a number of stars enhanced in carbon. The so called CEMP (carbon enhanced metal-poor) stars, these stars make up ~20% of the stars with [Fe/H] < -3, and 80% of the stars with [Fe/H] < -4.5. The progenitors of CEMP stars is still ...

  13. Surface abundances of ON stars

    E-Print Network [OSTI]

    Martins, F; Palacios, A; Howarth, I; Georgy, C; Walborn, N R; Bouret, J -C; Barba, R

    2015-01-01T23:59:59.000Z

    Massive stars burn hydrogen through the CNO cycle during most of their evolution. When mixing is efficient, or when mass transfer in binary systems happens, chemically processed material is observed at the surface of O and B stars. ON stars show stronger lines of nitrogen than morphologically normal counterparts. Whether this corresponds to the presence of material processed through the CNO cycle or not is not known. Our goal is to answer this question. We perform a spectroscopic analysis of a sample of ON stars with atmosphere models. We determine the fundamental parameters as well as the He, C, N, and O surface abundances. We also measure the projected rotational velocities. We compare the properties of the ON stars to those of normal O stars. We show that ON stars are usually helium-rich. Their CNO surface abundances are fully consistent with predictions of nucleosynthesis. ON stars are more chemically evolved and rotate - on average - faster than normal O stars. Evolutionary models including rotation cann...

  14. Creating a Star on Earth

    Broader source: Energy.gov [DOE]

    At the Energy Department's Princeton Plasma Physics Lab, scientists are trying to accomplish what was once considered the realm of science fiction: creating a star on Earth.

  15. Excavation of the first stars

    E-Print Network [OSTI]

    Toshikazu Shigeyama; Takuji Tsujimoto; Yuzuru Yoshii

    2003-02-17T23:59:59.000Z

    The external pollution of the first stars in the Galaxy is investigated. The first stars were born in clouds composed of the pristine gas without heavy elements. These stars accreted gas polluted with heavy elements while they still remained in the cloud. As a result, it is found that they exhibit a distribution with respect to the surface metallicity. We have derived the actual form of this distribution function. This metallicity distribution function strongly suggests that the recently discovered most metal-deficient star HE0107-5240 with [Fe/H]=-5.3 was born as a metal-free star and accreted gas polluted with heavy elements. Thus the heavy elements such as Fe in HE0107-5240 must have been supplied from supernovae of later generations exploding inside the cloud in which the star had been formed. The elemental abundance pattern on the surface of stars suffering from such an external pollution should not be diverse but exhibit the average pattern of numerous supernovae. Future observations for a number of metal-deficient stars with [Fe/H]<-5 will be able to prove or disprove this external pollution scenario. Other possibilities to produce a star with this metallicity are also discussed.

  16. Home Performance with Energy Star

    Broader source: Energy.gov [DOE]

    Through the Home Performance with Energy Star program, Focus on Energy offers instant rewards for installing select recommended efficiency measures following a home energy audit. Energy consultants...

  17. Streamlining ENERGY STAR Appliance Testing

    Broader source: Energy.gov [DOE]

    To save taxpayer dollars and help lower the costs of innovative energy-efficient technologies, the Energy Department is streamlining ENERGY STAR testing for appliances.

  18. A Mosque Among the Stars

    E-Print Network [OSTI]

    Ahmad, Muhammad Aurangzeb; Khan, Ahmad

    2007-01-04T23:59:59.000Z

    A Mosque Among The Stars was the first anthology that dealt with the subject of Muslim characters and/or Islamic themes and Science Fiction....

  19. North American Natural Gas Markets

    SciTech Connect (OSTI)

    Not Available

    1989-02-01T23:59:59.000Z

    This report summarizes die research by an Energy Modeling Forum working group on the evolution of the North American natural gas markets between now and 2010. The group's findings are based partly on the results of a set of economic models of the natural gas industry that were run for four scenarios representing significantly different conditions: two oil price scenarios (upper and lower), a smaller total US resource base (low US resource case), and increased potential gas demand for electric generation (high US demand case). Several issues, such as the direction of regulatory policy and the size of the gas resource base, were analyzed separately without the use of models.

  20. North American Natural Gas Markets

    SciTech Connect (OSTI)

    Not Available

    1988-12-01T23:59:59.000Z

    This report sunnnarizes the research by an Energy Modeling Forum working group on the evolution of the North American natural gas markets between now and 2010. The group's findings are based partly on the results of a set of economic models of the natural gas industry that were run for four scenarios representing significantly different conditions: two oil price scenarios (upper and lower), a smaller total US resource base (low US resource case), and increased potential gas demand for electric generation (high US demand case). Several issues, such as the direction of regulatory policy and the size of the gas resource base, were analyzed separately without the use of models.

  1. Virginia Nuclear Profile - North Anna

    U.S. Energy Information Administration (EIA) 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: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5 Tables July 1996 Energy Information Administration Office ofthroughYear JanYearFuel Consumption (MillionSeparation 2,378North

  2. North America | 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 America Drilling Fluids Market Homesource History View

  3. Microsoft Word - Teri North1.DOC

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

    for 10 years with safety credentials Casper, Wyo. - Jan. 5, 2007 - Rocky Mountain Oilfield Testing Center (RMOTC) Technical Assurance Manager Teri North was recognized by the...

  4. North American Electric Reliability Corporation (NERC): Reliability...

    Office of Environmental Management (EM)

    (NERC): Reliability Considerations from the Integration of Smart Grid North American Electric Reliability Corporation (NERC): Reliability Considerations from the Integration of...

  5. Surface Water and Wetland Standards (North Carolina)

    Broader source: Energy.gov [DOE]

    These rules state the standards for classification of water supply. Each stream in North Carolina has a classification based upon its designated uses. These rules provide the Environmental...

  6. North American Renewables Registry (Multiple States)

    Broader source: Energy.gov [DOE]

    The North American Renewables Registry (NAR) provides a Web-based platform trusted to create, track, and manage renewable energy certificate (REC) origination for clean generation facilities and...

  7. Recovery Act State Memos North Carolina

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

    are being used to hire or retrain staff, building in-house expertise in the areas of Smart Grids, critical energy infrastructure interdependencies and cyber-security. * North...

  8. Comments of North American Electric Reliability Corporation ...

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

    currently developing a report, entitled "Reliability Consideration from Integration of Smart Grid" that will address many of the issues raised in the DOE RFI. North American...

  9. Cavitation from bulk viscosity in neutron stars and quark stars

    E-Print Network [OSTI]

    Jes Madsen

    2009-09-30T23:59:59.000Z

    The bulk viscosity in quark matter is sufficiently high to reduce the effective pressure below the corresponding vapor pressure during density perturbations in neutron stars and strange stars. This leads to mechanical instability where the quark matter breaks apart into fragments comparable to cavitation scenarios discussed for ultra-relativistic heavy-ion collisions. Similar phenomena may take place in kaon-condensed stellar cores. Possible applications to compact star phenomenology include a new mechanism for damping oscillations and instabilities, triggering of phase transitions, changes in gravitational wave signatures of binary star inspiral, and astrophysical formation of strangelets. At a more fundamental level it points to the possible inadequacy of a hydrodynamical treatment of these processes in compact stars.

  10. North RTL grid scan'' studies

    SciTech Connect (OSTI)

    Emma, P.

    1990-10-17T23:59:59.000Z

    This study was made in response to screen measurements which indicated an emittance growth of nearly a factor of two within the North RTL or linac girder-1. Betatron oscillations are induced at the beginning of the North RTL to search for gross geometric aberrations arising within the RTL or sector-2 of the linac. The oscillations are induced horizontally and vertically with two X or two Y dipole correctors stepped in a nested loop fashion. In both cases the full set of RTL and first girder sector-2 linac beam position monitors (BPMs) are sampled in X and Y for each corrector setting. Horizontal (or vertical) data from pairs of BPMs are then transformed to phase space coordinates by the linear transformation constructed assuming the transport optics between the BPMs is known. A second transformation is then made to normalized phase space coordinates by using Twiss parameters consistent with the assumed transport optics. By careful choice of initial Twiss parameters the initial grid can be made square for convenience in graphical interpretation. A linear grid'' is then fitted to the transformed data points for each pair of BPMs. The area of each grid is calculated and linearity qualitatively evaluated. Furthermore, although not the focus of this study, the beta match at each BPM can be quantified. 6 figs.

  11. Physics of Neutron Star Crusts

    E-Print Network [OSTI]

    N. Chamel; P. Haensel

    2008-12-20T23:59:59.000Z

    The physics of neutron star crusts is vast, involving many different research fields, from nuclear and condensed matter physics to general relativity. This review summarizes the progress, which has been achieved over the last few years, in modeling neutron star crusts, both at the microscopic and macroscopic levels. The confrontation of these theoretical models with observations is also briefly discussed.

  12. Star formation in the multiverse

    SciTech Connect (OSTI)

    Bousso, Raphael; Leichenauer, Stefan [Center for Theoretical Physics, Department of Physics, University of California, Berkeley, California 94720-7300 (United States) and Lawrence Berkeley National Laboratory, Berkeley, California 94720-8162 (United States)

    2009-03-15T23:59:59.000Z

    We develop a simple semianalytic model of the star formation rate as a function of time. We estimate the star formation rate for a wide range of values of the cosmological constant, spatial curvature, and primordial density contrast. Our model can predict such parameters in the multiverse, if the underlying theory landscape and the cosmological measure are known.

  13. Thermal Evolution of Strange Stars

    E-Print Network [OSTI]

    Zhou Xia; Wang Lingzhi; Zhou Aizhi

    2007-09-03T23:59:59.000Z

    We investigated the thermal evolution of rotating strange stars with the deconfinement heating due to magnetic braking. We consider the stars consisting of either normal quark matter or color-flavor-locked phase. Combining deconfinement heating with magnetic field decay, we find that the thermal evolution curves are identical to pulsar data.

  14. Passive Cooling for Your North Carolina Home

    E-Print Network [OSTI]

    into passive or active solar heating as a way of reducing the amount of energy used in their home. In most designed home in North Carolina, whether it is solar or not, should be designed to require a minimum amountPassive Cooling for Your North Carolina Home As energy costs rise, and the public becomes more

  15. North Dakota`s forest resources, 1994

    SciTech Connect (OSTI)

    Haugen, D.E.; Piva, R.J.; Kingsley, N.P.; Harsel, R.A.

    1999-09-01T23:59:59.000Z

    The third inventory of North Dakota`s forests reports 44.1 million acres of land, of which 673 thousand acres are forested. This paper contains detailed tables related to area, volume, growth, removals, mortality, and ownership of North Dakota`s forests.

  16. Partnership connects North America NGL markets

    SciTech Connect (OSTI)

    Bodenhamer, K. [Mid-America Pipeline Co., Tulsa, OK (United States)

    1998-12-31T23:59:59.000Z

    The United States and Canadian NGL/LPG pipeline network became a larger North America system on April 2, 1997 with the opening of the Rio Grande Pipeline, delivering LPG from the United States to Mexico. This North American pipeline system now links three of the world`s largest LPG producing and consuming nations.

  17. North American Society for Trenchless Technology

    E-Print Network [OSTI]

    Moore, Paul A.

    North American Society for Trenchless Technology (NASTT) Bowling Green State University (BGSU Technology Seminar North American Society for Trenchless Technology (NASTT) & Bowling Green State University-Thompson Student Union Bowling Green State University (BGSU) Bowling Green, Ohio February 23-24, 2012 #12;Second

  18. North Sea Whitefish Survey: 2010 Prepared by

    E-Print Network [OSTI]

    ;Executive summary The North Sea Whitefish (NSW) survey sailed on 31 May 2010, fishing operations began on 1North Sea Whitefish Survey: 2010 Prepared by Chris Darby, Danny Normandale, Matthew Parker the first two surveys are encouraging. The NSW recorded a good range of ages for all target species in all

  19. North Sea Whitefish Survey: 2011 Prepared by

    E-Print Network [OSTI]

    ;Executive summary The North Sea Whitefish (NSW) survey sailed on 11 June 2011, fishing operations beganNorth Sea Whitefish Survey: 2011 Prepared by Chris Darby, Danny Normandale, Matthew Parker the three NSW surveys are starting to provide a valuable evaluation of the dynamics of the three target

  20. North Sea Whitefish Survey: 2012 Prepared by

    E-Print Network [OSTI]

    ;2 Executive summary The North Sea Whitefish (NSW) survey sailed on 03 June 2012, fishing operations beganNorth Sea Whitefish Survey: 2012 Prepared by Chris Darby, Danny Normandale, Marta Soffker, Samantha samples were collected from cod, haddock and whiting for age determination. In 2009, throughout the survey

  1. Efficiencies of Low-Mass Star and Star Cluster Formation

    E-Print Network [OSTI]

    Christopher D. Matzner; Christopher F. McKee

    2000-07-25T23:59:59.000Z

    Using a quantitative model for bipolar outflows driven by hydromagnetic protostellar winds, we calculate the efficiency of star formation assuming that available gas is either converted into stars or ejected in outflows. We estimate the efficiency of a single star formation event in a protostellar core, finding 25%-70% for cores with various possible degrees of flattening. The core mass function and the stellar initial mass function have similar slopes, because the efficiency is not sensitive to its parameters. We then consider the disruption of gas from a dense molecular clump in which a cluster of young stars is being born. In both cases, we present analytical formulae for the efficiencies that compare favorably against observations and, for clusters, against numerical simulations. We predict efficiencies in the range 30%-50% for the regions that form clusters of low-mass stars. In our model, star formation and gas dispersal happen concurrently. We neglect the destructive effects of massive stars: our results are therefore upper limits to the efficiency in regions more massive than about 3000 Msun.

  2. ancient north american: Topics by E-print Network

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

    as usual? ?Vision North Texas and the North Texas 2050 document ?Implications for energy conservation ESL-KT-11-11-18 CATEE 2011, Dallas, Texas, Nov. 7 ? 9, 2011 The North...

  3. Star Formation in a Complete Spectroscopic Survey of Galaxies

    E-Print Network [OSTI]

    B. J. Carter; D. G. Fabricant; M. J. Geller; M. J. Kurtz

    2001-07-14T23:59:59.000Z

    The 15R-North galaxy redshift survey is a uniform spectroscopic survey (S/N $\\sim $10) covering the range 3650---7400\\AA for 3149 galaxies with median redshift 0.05. The sample is 90% complete to $R=15.4$. The median slit covering fraction is 24% of the galaxy, apparently sufficient to minimize the effects of aperture bias on the EW(H$\\alpha$). Forty-nine percent of the galaxes in the survey have one or more emission lines detected at $\\geq 2 \\sigma$. In agreement with previous surveys, the fraction of absorption-line galaxies increases steeply with galaxy luminosity. We use H$\\beta$, O[III], H$\\alpha$, and [N\\II] to discriminate between star-forming galaxies and AGNs. We use the EW(H$\\alpha$ + [N\\II]) to estimate the Scalo birthrate parameter, $b$, the ratio of the current star formation rate to the time averaged star formation rate. Finally, we examine the way galaxies of different spectroscopic type trace the large-scale galaxy distribution.

  4. North Dakota Refining Capacity Study

    SciTech Connect (OSTI)

    Dennis Hill; Kurt Swenson; Carl Tuura; Jim Simon; Robert Vermette; Gilberto Marcha; Steve Kelly; David Wells; Ed Palmer; Kuo Yu; Tram Nguyen; Juliam Migliavacca

    2011-01-05T23:59:59.000Z

    According to a 2008 report issued by the United States Geological Survey, North Dakota and Montana have an estimated 3.0 to 4.3 billion barrels of undiscovered, technically recoverable oil in an area known as the Bakken Formation. With the size and remoteness of the discovery, the question became 'can a business case be made for increasing refining capacity in North Dakota?' And, if so what is the impact to existing players in the region. To answer the question, a study committee comprised of leaders in the region's petroleum industry were brought together to define the scope of the study, hire a consulting firm and oversee the study. The study committee met frequently to provide input on the findings and modify the course of the study, as needed. The study concluded that the Petroleum Area Defense District II (PADD II) has an oversupply of gasoline. With that in mind, a niche market, naphtha, was identified. Naphtha is used as a diluent used for pipelining the bitumen (heavy crude) from Canada to crude markets. The study predicted there will continue to be an increase in the demand for naphtha through 2030. The study estimated the optimal configuration for the refinery at 34,000 barrels per day (BPD) producing 15,000 BPD of naphtha and a 52 percent refinery charge for jet and diesel yield. The financial modeling assumed the sponsor of a refinery would invest its own capital to pay for construction costs. With this assumption, the internal rate of return is 9.2 percent which is not sufficient to attract traditional investment given the risk factor of the project. With that in mind, those interested in pursuing this niche market will need to identify incentives to improve the rate of return.

  5. THE GALACTIC O-STAR SPECTROSCOPIC SURVEY. I. CLASSIFICATION SYSTEM AND BRIGHT NORTHERN STARS IN THE BLUE-VIOLET AT R {approx} 2500

    SciTech Connect (OSTI)

    Sota, A.; Maiz Apellaniz, J.; Alfaro, E. J. [Instituto de Astrofisica de Andalucia-CSIC, Glorieta de la Astronomia s/n, 18008 Granada (Spain); Walborn, N. R. [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Barba, R. H. [Instituto de Ciencias Astronomicas, de la Tierra y del Espacio, Casilla 467, 5400 San Juan (Argentina); Morrell, N. I. [Las Campanas Observatory, Observatories of the Carnegie Institution of Washington, La Serena (Chile); Gamen, R. C. [Instituto de Astrofisica de La Plata (CCT La Plata-CONICET, Universidad Nacional de La Plata), Paseo del Bosque s/n, 1900 La Plata (Argentina); Arias, J. I., E-mail: jmaiz@iaa.es [Departamento de Fisica, Universidad de La Serena, Av. Cisternas 1200 Norte, La Serena (Chile)

    2011-04-01T23:59:59.000Z

    We present the first installment of a massive spectroscopic survey of Galactic O stars, based on new, high signal-to-noise ratio, R {approx} 2500 digital observations from both hemispheres selected from the Galactic O-Star Catalog of MaIz Apellaniz et al. and Sota et al. The spectral classification system is rediscussed and a new atlas is presented, which supersedes previous versions. Extensive sequences of exceptional objects are given, including types Ofc, ON/OC, Onfp, Of?p, Oe, and double-lined spectroscopic binaries. The remaining normal spectra bring this first sample to 184 stars, which is close to complete to B = 8 and north of {delta} = -20{sup 0} and includes all of the northern objects in MaIz Apellaniz et al. that are still classified as O stars. The systematic and random accuracies of these classifications are substantially higher than previously attainable, because of the quality, quantity, and homogeneity of the data and analysis procedures. These results will enhance subsequent investigations in Galactic astronomy and stellar astrophysics. In the future, we will publish the rest of the survey, beginning with a second paper that will include most of the southern stars in MaIz Apellaniz et al.

  6. North Area Right-of-Way Maintenance Project

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

    North Area Right-of-Way Maintenance Project North Area Right-of-Way Maintenance Project Western FONSI (PDF - 487 KB) Final Environmental Assessment (PDF - 4200 KB) Environmental...

  7. Secretary Moniz Announces Travel to Chicago, North Dakota, New...

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

    Chicago, North Dakota, New Mexico for Quadrennial Energy Review Secretary Moniz Announces Travel to Chicago, North Dakota, New Mexico for Quadrennial Energy Review August 5, 2014 -...

  8. STEM Career Showcase for Students with Disabilities - North Carolina...

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

    STEM Career Showcase for Students with Disabilities - North Carolina Museum of Natural Sciences STEM Career Showcase for Students with Disabilities - North Carolina Museum of...

  9. Volvo Truck Headquarters in North Carolina to Host Event With...

    Energy Savers [EERE]

    Volvo Truck Headquarters in North Carolina to Host Event With Acting Under Secretary of Energy Majumdar Volvo Truck Headquarters in North Carolina to Host Event With Acting Under...

  10. Energy Independence for North America - Transition to the Hydrogen...

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

    Independence for North America - Transition to the Hydrogen Economy Energy Independence for North America - Transition to the Hydrogen Economy 2003 DEER Conference Presentation:...

  11. Diesel Engine Strategy & North American Market Challenges, Technology...

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

    Strategy & North American Market Challenges, Technology and Growth Diesel Engine Strategy & North American Market Challenges, Technology and Growth Presentation given at the 2007...

  12. area north tan: Topics by E-print Network

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

    markets hit by United States housing crash 19 Columbia, Canada. Currently about 80% of pellet production from North America is exported to Europe. Recent 453 University of North...

  13. Bootstrapping a Sustainable North American PEM Fuel Cell Industry...

    Energy Savers [EERE]

    Bootstrapping a Sustainable North American PEM Fuel Cell Industry: Could a Federal Acquisition Program Make a Difference? Bootstrapping a Sustainable North American PEM Fuel Cell...

  14. EPA ENERGY STAR: Tackling Growth in Home Electronics and Small Appliances

    E-Print Network [OSTI]

    Sanchez, Marla Christine

    2008-01-01T23:59:59.000Z

    behavior: the case of ENERGY STAR computers Unlike ENERGY STAR ME, participation in ENERGY STAR home

  15. EPA ENERGY STAR Webcast: Value of ENERGY STAR Certification

    Office of Energy Efficiency and Renewable Energy (EERE)

    For thousands of organizations, ENERGY STAR is the simple choice for saving money and demonstrating environmental leadership to the public. Lower energy costs aren't the only financial benefit of...

  16. EPA ENERGY STAR Webinar: ENERGY STAR Portfolio Manager 201

    Office of Energy Efficiency and Renewable Energy (EERE)

    Continue to learn about EPA’s ENERGY STAR Portfolio Manager tool, with a deeper dive into more advanced functionalities such as: managing and tracking changes to your property uses over time; using...

  17. ENERGY STAR Webinar: Financing Energy Efficient Upgrades with ENERGY STAR

    Broader source: Energy.gov [DOE]

    ENERGY STAR is hosting a webinar on how public sector organizations are improving energy efficiency with innovative solutions to financial barriers on Oct. 21, 2014, from 2:00 p.m. - 3:15 p.m.

  18. Star Trek Songbook Issue 3

    E-Print Network [OSTI]

    Multiple Contributors

    1976-01-01T23:59:59.000Z

    lunar flower Is growing, Somewhere beyond the stars... Beyond Antares. There waits my love, a-sleeplng, Where my heart is, where my heart is, Where the great blue crane Its watch is keeping, Somewhere beyond the stars... Beyond Antares. I...'ll be back, though It takes forever. Forever is just a day. Forever is just another journey, Tomorrow a stop along the way. Then let the years go fading, Where my heart is, where my heart Is, For my love eternally Is waiting Somewhere, beyond the stars...

  19. Star Formation and AGN activity in Galaxies classified using the 1.6 {\\mu}m Bump and PAH features at $z = 0.4-2$

    E-Print Network [OSTI]

    Hanami, Hitoshi; Fujishiro, Naofumi; Nakanishi, Kouichiro; Miyaji, Takamitsu; Krumpe, Mirko; Umetsu, Keiichi; Ohyama, Youichi; Shim, Hyun Jin; Im, Myungshin; Lee, Hyoung Mok; Lee, Myung Gyoon; Serjeant, Stephen; White, Glenn J; Willmer, Christopher N; Goto, Tomotsugu; Oyabu, Shinki; Takagi, Toshinobu; Wada, Takehiko; Matsuhara, Hideo

    2011-01-01T23:59:59.000Z

    We have studied the star-formation and AGN activity of massive galaxies in the redshift range $z=0.4-2$, which are detected in a deep survey field using the AKARI InfraRed (IR) astronomical satellite and {\\em Subaru} telescope toward the North Ecliptic Pole (NEP). The AKARI/IRC Mid-InfraRed (MIR) multiband photometry is used to trace their star-forming activities with the Polycyclic-Aromatic Hydrocarbon (PAH) emissions, which is also used to distinguish star-forming populations from AGN dominated ones and to estimate the Star Formation Rate (SFR) derived from their total emitting IR (TIR) luminosities. In combination with analyses of their stellar components, we have studied the MIR SED features of star-forming and AGN-harboring galaxies.

  20. Gravitational Waves from Relativistic Stars

    E-Print Network [OSTI]

    Yasufumi Kojima

    2000-02-23T23:59:59.000Z

    Stellar pulsations in rotating relativistic stars are reviewed. Slow rotation approximation is applied to solving the Einstein equations. The rotational effects on the non-axisymmetric oscillations are explicitly shown in the polar and axial modes.

  1. Inversion of the star transform

    E-Print Network [OSTI]

    Fan Zhao; John C. Schotland; Vadim A. Markel

    2014-05-06T23:59:59.000Z

    We define the star transform as a generalization of the broken ray transform introduced by us in previous work. The advantages of using the star transform include the possibility to reconstruct the absorption and the scattering coefficients of the medium separately and simultaneously (from the same data) and the possibility to utilize scattered radiation which, in the case of the conventional X-ray tomography, is discarded. In this paper, we derive the star transform from physical principles, discuss its mathematical properties and analyze numerical stability of inversion. In particular, it is shown that stable inversion of the star transform can be obtained only for configurations involving odd number of rays. Several computationally-efficient inversion algorithms are derived and tested numerically.

  2. ENERGY STAR Portfolio Manager 101

    Office of Energy Efficiency and Renewable Energy (EERE)

    Join us as we introduce and demonstrate the core functionality of EPA’s ENERGY STAR Portfolio Manager tool. Attendees will learn how to: navigate Portfolio Manager; add a property and enter details...

  3. The STAR Vertex Position Detector

    E-Print Network [OSTI]

    W. J. Llope; J. Zhou; T. Nussbaum; G. W. Hoffmann; K. Asselta; J. D. Brandenburg; J. Butterworth; T. Camarda; W. Christie; H. J. Crawford; X. Dong; J. Engelage; G. Eppley; F. Geurts; J. Hammond; E. Judd; D. L. McDonald; C. Perkins; L. Ruan; J. Scheblein; J. J. Schambach; R. Soja; K. Xin; C. Yang

    2014-03-26T23:59:59.000Z

    The 2x3 channel pseudo Vertex Position Detector (pVPD) in the STAR experiment at RHIC has been upgraded to a 2x19 channel detector in the same acceptance, called the Vertex Position Detector (VPD). This detector is fully integrated into the STAR trigger system and provides the primary input to the minimum-bias trigger in Au+Au collisions. The information from the detector is used both in the STAR Level-0 trigger and offline to measure the location of the primary collision vertex along the beam pipe and the event "start time" needed by other fast-timing detectors in STAR. The offline timing resolution of single detector channels in full-energy Au+Au collisions is ~100 ps, resulting in a start time resolution of a few tens of picoseconds and a resolution on the primary vertex location of ~1 cm.

  4. ENERGY STAR Portfolio Manager 201

    Office of Energy Efficiency and Renewable Energy (EERE)

    Continue to learn about EPA’s new ENERGY STAR Portfolio Manager tool, with a deeper dive into more advanced functionalities such as: managing and tracking changes to your property uses over time;...

  5. NYSERDA- Energy Star Home Builders

    Broader source: Energy.gov [DOE]

    NYSERDA offers a program to encourage more industry involvement in the building of Energy Star rated Homes. Incentives are available for newly constructed residential dwellings of 3 stories or less...

  6. STAR Vertex Detector Upgrade Development

    SciTech Connect (OSTI)

    Greiner, Leo C.; Matis, Howard S.; Stezelberger, Thorsten; Vu,Chinh Q.; Wieman, Howard; Szelezniak, Michal; Sun, Xiangming

    2008-01-28T23:59:59.000Z

    We report on the development and prototyping efforts undertaken with the goal of producing a micro-vertex detector for the STAR experiment at the RHIC accelerator at BNL. We present the basic detector requirements and show a sensor development path, conceptual mechanical design candidates and readout architecture. Prototyping and beam test results with current generation MimoSTAR-2 sensors and a readout system featuring FPGA based on-the-fly hit finding and data sparsification are also presented.

  7. Helium in Chemically Peculiar Stars

    E-Print Network [OSTI]

    F. Leone

    1998-05-05T23:59:59.000Z

    For the purpose of deriving the helium abundances in chemically peculiar stars, the importance of assuming a correct helium abundance has been investigated for determining the effective temperature and gravity of main sequence B-type stars, making full use of the present capability of reproducing their helium lines. Even if the flux distribution of main sequence B-type stars appears to depend only on the effective temperature for any helium abundance, the effective temperature, gravity and helium abundance have to be determined simultaneously by matching the Balmer line profiles. New MULTI NLTE calculations, performed adopting ATLAS9 model atmospheres and updated helium atomic parameters, reproduce most of the observed equivalent widths of neutral helium lines for main sequence B-type stars and they make us confident of the possibility to correctly derive the helium abundance in chemically peculiar stars. An application of previous methods to the helium rich star HD 37017 shows that helium could be stratified in the magnetic pole regions, as expected in the framework of the diffusion theory in the presence of mass loss.

  8. Wind Energy Permitting Standards (North Carolina)

    Broader source: Energy.gov [DOE]

    North Carolina has statewide permitting requirements for wind energy facilities. Any wind turbine or collection of wind turbines located within a half mile of each other with a collective rated...

  9. Alternative Fuels Data Center: North Carolina Information

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    facilities in North Carolina, use the TransAtlas interactive mapping tool or use BioFuels Atlas to show the use and potential production of biofuels throughout the U.S. and...

  10. North Shore Gas- Residential Rebate Program

    Broader source: Energy.gov [DOE]

    The North Shore Gas Natural Gas Savings Program offers incentives to encourage customers to make energy-efficient improvements to their homes and apartment buildings. Rebates are available on...

  11. THE UNIVERSITY OF NORTH TEXAS EXPORT CONTROLS

    E-Print Network [OSTI]

    Mohanty, Saraju P.

    Regulations ECCN Export Control Classification Number ECO Export Controls Officer ITAR International Traffic in Arms Regulations OFAC Office of Foreign Assets Control (U.S. Department of the Treasury) ORED Office1 ______________________________________________ THE UNIVERSITY OF NORTH TEXAS EXPORT CONTROLS

  12. Qualifying RPS State Export Markets (North Carolina)

    Broader source: Energy.gov [DOE]

    This entry lists the states with Renewable Portfolio Standard (RPS) policies that accept generation located in North Carolina as eligible sources towards their RPS targets or goals. For specific...

  13. Qualifying RPS State Export Markets (North Dakota)

    Broader source: Energy.gov [DOE]

    This entry lists the states with Renewable Portfolio Standard (RPS) policies that accept generation located in North Dakota as eligible sources towards their RPS targets or goals. For specific...

  14. Groundwater Classification and Standards (North Carolina)

    Broader source: Energy.gov [DOE]

    The rules established in this Subchapter 2L of North Carolina Administrative Code Title 15A are intended to maintain and preserve the quality of the groundwaters, prevent and abate pollution and...

  15. AGEING NORTH AMERICAN LANDBIRDS BY MOLT LIMITS AND PLUMAGE CRITERIA

    E-Print Network [OSTI]

    DeSante, David F.

    TO THE IDENTIFICATION GUIDE TO NORTH AMERICAN BIRDS, PART I Dan Froehlich Slate Creek Press #12;AGEING NORTH AMERICAN TO NORTH AMERICAN BIRDS, PART I Dan Froehlich Slate Creek Press Bolinas, California #12;Ageing North by David F. DeSante, Peter Pyle, and Nicole Michel for Slate Creek Press, P.O. Box 219, Bolinas, California

  16. Energy Conservation in China North Industries Corporation

    E-Print Network [OSTI]

    You, W. T.; De, C. H.; Chu, J. X.; Fu, L. R.

    . In some plants which have stable steam consumption we have established small scale power and steam cogeneration. This has improved boilers' efficiencies and utilization of energy. For further reduction oil firing, we have been studying on alternative... ENERGY CONSERVATION IN CHINA NORTH INDUSTRIES CORPORATION Wang Tian You, Chen Hua De, Jing Xing Chu, Ling Rui Fu, China North Industries Corporation Beijing, People's Republic of China ABSTRACT This paper describes an overview of the energy...

  17. Beaumont North End Community Revitalization Vision 

    E-Print Network [OSTI]

    2008-01-01T23:59:59.000Z

    road from I-10 at Martin Luther King Boulevard. Zaharias Park has many great attributes, such as 30 acres of open space, which also has the potential to become a Texas A&M University, Spring 2008 Page 15 of 109 BEAUMONT NORTH END... Final Report PLAN 663: APPLIED PLANNING Spring 2008 Texas A&M University Texas A&M University, Spring 2008 Page 1 of 109 BEAUMONT NORTH END REVITALIZATION...

  18. Feedback from Protostellar Outflows in Star and Star Cluster Formation

    E-Print Network [OSTI]

    Christopher D. Matzner

    2000-07-13T23:59:59.000Z

    Magnetic stresses collimate protostellar winds into a common distribution of force with angle. Sweeping into the ambient medium, such winds drive bipolar molecular outflows whose properties are insensitive to the distribution of ambient gas and to the details of how the wind is launched, and how its intensity varies over time. Moreover, these properties are in accord with the commonly observed features of outflows. This model is simple enough to permit a quantitative study of the feedback effects from low-mass star formation. It predicts the rate at which star-forming gas is ejected by winds, and hence the efficiency with which stars form. Applied to individual star formation, it relates the stellar initial mass function to the distribution of pre-stellar cores. Applied to cluster formation, it indicates whether the resulting stellar system will remain gravitationally bound. Using the energy injection and mass ejection implied by this model, we investigate the dynamical evolution of a molecular clump as a stellar cluster forms within it. This depends critically on the rate at which turbulence decays: it may involve equilibrium star formation (slow decay), overstable oscillations, or collapse (fast decay).

  19. ENERGY STAR Test Procedures and Verification | Department of...

    Energy Savers [EERE]

    ENERGY STAR ENERGY STAR Test Procedures and Verification ENERGY STAR Test Procedures and Verification The Department of Energy (DOE) is the lead agency in the development and...

  20. Old and new neutron stars

    SciTech Connect (OSTI)

    Ruderman, M.

    1984-09-01T23:59:59.000Z

    The youngest known radiopulsar in the rapidly spinning magnetized neutron star which powers the Crab Nebula, the remnant of the historical supernova explosion of 1054 AD. Similar neutron stars are probably born at least every few hundred years, but are less frequent than Galactic supernova explosions. They are initially sources of extreme relativistic electron and/or positron winds (approx.10/sup 38/s/sup -1/ of 10/sup 12/ eV leptons) which greatly decrease as the neutron stars spin down to become mature pulsars. After several million years these neutron stars are no longer observed as radiopulsars, perhaps because of large magnetic field decay. However, a substantial fraction of the 10/sup 8/ old dead pulsars in the Galaxy are the most probable source for the isotropically distributed ..gamma..-ray burst detected several times per week at the earth. Some old neutron stars are spun-up by accretion from companions to be resurrected as rapidly spinning low magnetic field radiopulsars. 52 references, 6 figures, 3 tables.

  1. Understanding the Elusive Dwarf Carbon Star

    E-Print Network [OSTI]

    Paul J. Green

    1996-08-01T23:59:59.000Z

    Most stars in our Galaxy with photospheric C/O>1 (carbon stars) are not giants but dwarfs. The newly-recognized class of dwarf carbon (dC) stars joins the growing family of stars with peculiar abundances that are now recognized as products of mass-transfer binary (MTB) evolution. The dozen examples now known span a wide range of evolutionary histories, ages, and abundances. These stars can already provide some much-needed constraints on the formation of AGB C stars in the disk and spheroid populations, and on the parameters characterizing binary evolution there. A larger sample of dCs, with some bright members, would hasten our progress.

  2. The Administration's "North Stars" for Energy | OpenEI Community

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand Jump to:Ezfeedflag JumpID-f <MaintainedInformation 2Energy Information PartnershipYou!The

  3. North Atlantic DivisionNorth Atlantic Division SuperstormSuperstorm SandySandy

    E-Print Network [OSTI]

    US Army Corps of Engineers

    North Atlantic DivisionNorth Atlantic Division SuperstormSuperstorm SandySandy Dredging Industry BriefDredging Industry BriefDredging Industry BriefDredging Industry Brief 3 April 20133 April 2013 #12;NAD Sandy Dredging BriefNAD Sandy Dredging Brief · Purposep · Goals · Sandy Program Overview

  4. Co-variability of tropical cyclones in the North Atlantic and the eastern North Pacific

    E-Print Network [OSTI]

    Wang, Chunzai

    of accumulated cyclone energy (ACE) in the ENP. Therefore, we calculate the NA and ENP ACE indices by summingCo-variability of tropical cyclones in the North Atlantic and the eastern North Pacific Chunzai; published 30 December 2009. [1] In the Western Hemisphere, tropical cyclones (TCs) can form and develop

  5. Neutron Star Properties with Hyperons

    E-Print Network [OSTI]

    Whittenbury, D L; Thomas, A W; Tsushima, K; Stone, J R

    2012-01-01T23:59:59.000Z

    In the light of the recent discovery of a neutron star with a mass accurately determined to be almost two solar masses, it has been suggested that hyperons cannot play a role in the equation of state of dense matter in $\\beta$-equilibrium. We re-examine this issue in the most recent development of the quark-meson coupling model. Within a relativistic Hartree-Fock approach and including the full tensor structure at the vector-meson-baryon vertices, we find that not only must hyperons appear in matter at the densities relevant to such a massive star but that the maximum mass predicted is completely consistent with the observation.

  6. Nuclear Physics of Neutron Stars

    E-Print Network [OSTI]

    J. Piekarewicz

    2009-01-28T23:59:59.000Z

    Understanding the equation of state (EOS) of cold nuclear matter, namely, the relation between the pressure and energy density, is a central goal of nuclear physics that cuts across a variety of disciplines. Indeed, the limits of nuclear existence, the collision of heavy ions, the structure of neutron stars, and the dynamics of core-collapse supernova, all depend critically on the equation of state of hadronic matter. In this contribution I will concentrate on the special role that nuclear physics plays in constraining the EOS of cold baryonic matter and its impact on the properties of neutron stars.

  7. The Cooling of Compact Stars

    E-Print Network [OSTI]

    Dany Page; Ulrich Geppert; Fridolin Weber

    2005-08-01T23:59:59.000Z

    The cooling of a compact star depends very sensitively on the state of dense matter at supranuclear densities, which essentially controls the neutrino emission, as well as on the structure of the stellar outer layers which control the photon emission. Open issues concern the hyperon population, the presence of meson condensates, superfluidity and superconductivity, and the transition of confined hadronic matter to quark matter. This paper describes these issues and presents cooling calculations based on a broad collection of equations of state for neutron star matter and strange matter. These results are tested against the body of observed cooling data.

  8. Neutron skins and neutron stars

    SciTech Connect (OSTI)

    Piekarewicz, J. [Department of Physics, Florida State University, Tallahassee, FL 32306-4350 (United States)

    2013-11-07T23:59:59.000Z

    The neutron-skin thickness of heavy nuclei provides a fundamental link to the equation of state of neutron-rich matter, and hence to the properties of neutron stars. The Lead Radius Experiment ('PREX') at Jefferson Laboratory has recently provided the first model-independence evidence on the existence of a neutron-rich skin in {sup 208}Pb. In this contribution we examine how the increased accuracy in the determination of neutron skins expected from the commissioning of intense polarized electron beams may impact the physics of neutron stars.

  9. Towards a realistic axion star

    E-Print Network [OSTI]

    J. Barranco; A. Bernal

    2008-08-01T23:59:59.000Z

    In this work we estimate the radius and the mass of a self-gravitating system made of axions. The quantum axion field satisfies the Klein-Gordon equation in a curved space-time and the metric components of this space-time are solutions to the Einstein equations with a source term given by the vacuum expectation value of the energy-momentum operator constructed from the axion field. As a first step towards an axion star we consider the up to the sixth term in the axion potential expansion. We found that axion stars would have masses of the order of asteroids and radius of the order of few centimeters.

  10. Quark stars: their influence on Astroparticle Physics

    E-Print Network [OSTI]

    Sanjay K. Ghosh

    2008-08-12T23:59:59.000Z

    We discuss some of the recent developments in the quark star physics along with the consequences of possible hadron to quark phase transition at high density scenario of neutron stars and their implications on the Astroparticle Physics.

  11. PNM- Energy Star Home Builder Rebate Program

    Broader source: Energy.gov [DOE]

    PNM is offering home builders a rebate for each Energy Star-qualified home they build in PNM service areas. Every Energy Star-qualified home must include effective insulation and air sealing, high...

  12. How to Apply for the ENERGY STAR®

    Broader source: Energy.gov [DOE]

    Join us to learn about applying for ENERGY STAR Certification in Portfolio Manager. Understand the value of the ENERGY STAR certification, see the step-by-step process of applying, and gain tips to...

  13. Equator Appliance: ENERGY STAR Referral (EZ 3720)

    Broader source: Energy.gov [DOE]

    DOE referred Equator Appliance clothes washer EZ 3720 to EPA, brand manager of the ENERGY STAR program, for appropriate action after DOE testing revealed that the model does not meet ENERGY STAR requirements.

  14. Haier: ENERGY STAR Referral (ESA3087)

    Broader source: Energy.gov [DOE]

    DOE referred Haier room air conditioner model ESA3087 to EPA, brand manager of the ENERGY STAR program, for appropriate action after DOE testing revealed that the model does not meet ENERGY STAR requirements.

  15. Gas & Stars Aging low-mass stars eject their outer layers.

    E-Print Network [OSTI]

    Barnes, Joshua Edward

    Recycling Gas & Stars #12;Aging low-mass stars eject their outer layers. M57:The Ring Nebula #12;Thor's Emerald Helmet Winds from high-mass stars blow bubbles of hot gas. #12;Supernova blast waves in stars are mixed back into the gas. NGC 6992: Filaments of theVeil Nebula #12;Bubbles blown by high

  16. Black Stars and Gamma Ray Bursts

    E-Print Network [OSTI]

    Tanmay Vachaspati

    2007-06-08T23:59:59.000Z

    Stars that are collapsing toward forming a black hole but are frozen near the Schwarzschild horizon are termed ``black stars''. Collisions of black stars, in contrast to black hole collisions, may be sources of gamma ray bursts, whose basic parameters are estimated quite simply and are found to be consistent with observed gamma ray bursts. Black star gamma ray bursts should be preceded by gravitational wave emission similar to that from the coalescence of black holes.

  17. NuSTAR: Nuclear Spectroscopic Telescope Array

    ScienceCinema (OSTI)

    Craig, Bill

    2014-06-24T23:59:59.000Z

    Bill Craig, an astrophysicist at Lawrence Livermore National Laboratory, describes the NASA NuSTAR mission, launched June 13, 2012.

  18. The nuclear physics of neutron stars

    SciTech Connect (OSTI)

    Piekarewicz, J. [Department of Physics, Florida State University, Tallahassee, FL 32306-4350 (United States)

    2014-05-09T23:59:59.000Z

    We explore the unique and fascinating structure of neutron stars. Although neutron stars are of interest in many areas of Physics, our aim is to provide an intellectual bridge between Nuclear Physics and Astrophysics. We argue against the naive perception of a neutron star as a uniform assembly of neutrons packed to enormous densities. Rather, by focusing on the many exotic phases that are speculated to exist in a neutron star, we show how the reality is different and far more interesting.

  19. Is Her X-1 a strange star?

    E-Print Network [OSTI]

    Jes Madsen

    1996-01-23T23:59:59.000Z

    The possible identification of Her X-1 with a strange star (Li et al. 1995) is shown to be incorrect.

  20. The Chandrasekhar limit for quark stars

    E-Print Network [OSTI]

    Shibaji Banerjee; Sanjay K. Ghosh; Sibaji Raha

    2000-01-14T23:59:59.000Z

    The Chandrasekhar limit for quark stars is evaluated from simple energy balance relations, as proposed by Landau for white dwarfs or neutron stars. It has been found that the limit for quark stars depends on, in addition to the fundamental constants, the Bag constant.

  1. The apsidal motion in close binary stars

    E-Print Network [OSTI]

    B. V. Vasiliev

    2001-10-10T23:59:59.000Z

    It is usually accepted to consider an apsidal motion in binary stars as a direct confirmation that a substance inside stars is not uniformly distributed. It is shown in this paper that the apsidal motion in binary systems observation data is in a good agreement with an existence of uniform plasma cores inside stars if they consist of hydrogen-deuterium-helium mixture.

  2. Carbon stars in populations of different metallicity

    E-Print Network [OSTI]

    M. A. T. Groenewegen

    1998-11-09T23:59:59.000Z

    Our current knowledge of carbon stars in the Local Group and beyond, is discussed. Although many carbon stars and late M-stars have been identified in external galaxies a coherent understanding in terms of the chemical evolution- and star formation rate-history of a galaxy is still largely lacking. Issues that need to be addressed are: 1) for some of the larger galaxies only a small fraction in area has been surveyed so far, 2) surveys have been conducted using different techniques, and may be incomplete in bolometric magnitude, 3) only for some galaxies is there information about the late M-star population, 4) not all galaxies in the Local Group have been surveyed, 5) only for a sub-set of stars are bolometric magnitudes available. From the existing observations one can derive the following: the formation of carbon stars is both a function of metallicity and star-formation. In galaxies with a similar star-formation rate history, there will be relatively more carbon stars formed in the system with the lower metallicity. On the other hand, the scarcity of AGB type carbon stars in some systems with the lowest metallicity indicates that these galaxies have had a low, if any, star-formation rate history over the last few Gyrs.

  3. Maximally incompressible neutron star matter

    E-Print Network [OSTI]

    Timothy S. Olson

    2000-12-07T23:59:59.000Z

    Relativistic kinetic theory, based on the Grad method of moments as developed by Israel and Stewart, is used to model viscous and thermal dissipation in neutron star matter and determine an upper limit on the maximum mass of neutron stars. In the context of kinetic theory, the equation of state must satisfy a set of constraints in order for the equilibrium states of the fluid to be thermodynamically stable and for perturbations from equilibrium to propagate causally via hyperbolic equations. Application of these constraints to neutron star matter restricts the stiffness of the most incompressible equation of state compatible with causality to be softer than the maximally incompressible equation of state that results from requiring the adiabatic sound speed to not exceed the speed of light. Using three equations of state based on experimental nucleon-nucleon scattering data and properties of light nuclei up to twice normal nuclear energy density, and the kinetic theory maximally incompressible equation of state at higher density, an upper limit on the maximum mass of neutron stars averaging 2.64 solar masses is derived.

  4. Boson Stars with Nontrivial Topology

    E-Print Network [OSTI]

    Vladimir Dzhunushaliev; Vladimir Folomeev; Christian Hoffmann; Burkhard Kleihaus; Jutta Kunz

    2014-09-24T23:59:59.000Z

    We construct boson star solutions in the presence of a phantom field, allowing for a nontrivial topology of the solutions. The wormholes residing at the core of the configurations lead to a number of qualitative changes of the boson star solutions. In particular, the typical spiraling dependence of the mass and the particle number on the frequency of the boson stars is lost. Instead, the boson stars with nontrivial topology approach a singular configuration in the limit of vanishing frequency. Depending on the value of the coupling constant, the wormhole geometry changes from a single throat configuration to a double throat configuration, featuring a belly inbetween the two throats. Depending on the mass of the boson field and its self-interaction, the mass and the size of these objects cover many orders of magnitude, making them amenable to various astrophysical observations. A stability analysis reveals, that the unstable mode of the Ellis wormhole is retained in the presence of the bosonic matter. However, the negative eigenvalue can get very close to zero, by tuning the parameters of the self-interaction potential appropriately.

  5. Star Formation in the Multiverse

    E-Print Network [OSTI]

    Raphael Bousso; Stefan Leichenauer

    2008-10-17T23:59:59.000Z

    We develop a simple semi-analytic model of the star formation rate (SFR) as a function of time. We estimate the SFR for a wide range of values of the cosmological constant, spatial curvature, and primordial density contrast. Our model can predict such parameters in the multiverse, if the underlying theory landscape and the cosmological measure are known.

  6. Star Formation and Galaxy Environment

    E-Print Network [OSTI]

    H. K. C. Yee

    2000-04-05T23:59:59.000Z

    The dependence of star formation rate on galaxian environment is a key issue in the understanding of galaxy formation and evolution. However, the study of this subject is complex and observationally challenging. This paper reviews some of the current results, drawing mostly from recent large redshift surveys such the LCRS, the MORPH collaboration, and the CNOC1 and CNOC2 redshift surveys.

  7. Torsional oscillations of strange stars

    E-Print Network [OSTI]

    Massimo Mannarelli

    2014-09-12T23:59:59.000Z

    Strange stars are one of the hypothetical compact stellar objects that can be formed after a supernova explosion. The existence of these objects relies on the absolute stability of strange {\\it collapsed} quark matter with respect to standard nuclear matter. We discuss simple models of strange stars with a bare quark matter surface, thus standard nuclear matter is completely absent. In these models an electric dipole layer a few hundreds Fermi thick should exist close to the star surface. Studying the torsional oscillations of the electrically charged layer we estimate the emitted power, finding that it is of the order of $10^{45}$ erg/s, meaning that these objects would be among the brightest compact sources in the heavens. The associated relaxation times are very uncertain, with values ranging between microseconds and minutes, depending on the crust thickness. Although part of the radiated power should be absorbed by the electrosphere surrounding the strange star, a sizable fraction of photons should escape and be detectable.

  8. North Associated Power Corporation | 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 America Drilling Fluids Market HomesourceNorth

  9. North Carolina Solar Center | Open Energy Information

    Open Energy Info (EERE)

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

  10. NorthWestern Corporation | 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 America Drilling FluidsNorth Western Elec Coop,

  11. NorthWestern Energy | Open Energy Information

    Open Energy Info (EERE)

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

  12. North Country Ethanol LLC | 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: Energy Resources JumpOklahoma:NorthCastle, New York:CityNorth Country

  13. North Cove Capital Advisors | 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: Energy Resources JumpOklahoma:NorthCastle, New York:CityNorthAdvisors

  14. Development of trade-off equations for EnergyStar windows

    SciTech Connect (OSTI)

    Huang, Joe; Mitchell, Robin; Selkowitz, Steve; Arasteh, Dariush; Clear, Bob

    2004-06-09T23:59:59.000Z

    The authors explore the feasibility of adding a performance option to DOE's EnergyStar{copyright} Windows program whereby windows of differing U-factors and SHGCs can qualify so long as they have equivalent annual energy performance. An iterative simulation procedure is used to calculate trade-off equations giving the change in SHGC needed to compensate for a change in U-factor. Of the four EnergyStar{copyright} Window climate zones, trade-off equations are possible only in the Northern and Southern zones. In the North/Central and South/Central zones, equations are not possible either because of large intrazone climate variations or the current SHGC requirements are already near optimum.

  15. akari north ecliptic: Topics by E-print Network

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

    AKARI North Ecliptic Pole Wide (NEP-Wide) survey. The NEP-Wide is an it AKARI infrared imaging survey of the north ecliptic pole covering a 5.8 deg2 area over 2.5 -- 6...

  16. Wind Energy Center Edgeley/Kulm Project, North Dakota

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

    Environmental Assessment Wind Energy Center EdgeleyKulm Project North Dakota North Dakota Wind, LLC FPL Energy DOEEA-1465 April 2003 Summary S - 1 Final EA SUMMARY The proposed...

  17. Energy Efficient Appliance Sales Soar in North Carolina | Department...

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

    Energy Efficient Appliance Sales Soar in North Carolina Energy Efficient Appliance Sales Soar in North Carolina July 23, 2010 - 11:00am Addthis Joshua DeLung What does this mean...

  18. EECBG Success Story: North Pole's Holiday Wish for an Energy...

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

    Pole's Holiday Wish for an Energy Efficient 2012 EECBG Success Story: North Pole's Holiday Wish for an Energy Efficient 2012 December 23, 2011 - 4:20pm Addthis The city of North...

  19. Microsoft Word - DOE News Release - Henderson North Middle School...

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

    February 6, 2015 Robert.Smith@lex.doe.gov Henderson North Middle School wins 2015 DOE West Kentucky Regional Science Bowl PADUCAH, Ky. - Henderson North Middle School won the U.S....

  20. PONDWEEDS AND PONDWEEDLIKE PLANTS OF EASTERN NORTH AMERICA

    E-Print Network [OSTI]

    NORTH AMERICA By Neil Hotchkiss , Wildlife Research Biologist Patuxent Wildlife Research Center Division kinds grow farther north and south; a few grow in the fresh and brackish waters of coastal bays, rivers

  1. Multiyear Predictions of North Atlantic Hurricane Frequency: Promise and Limitations

    E-Print Network [OSTI]

    Wittenberg, Andrew

    Multiyear Predictions of North Atlantic Hurricane Frequency: Promise and Limitations GABRIEL A VILLARINI IIHR­Hydroscience & Engineering, The University of Iowa, Iowa City, Iowa ANDREW WITTENBERG Retrospective predictions of multiyear North Atlantic Ocean hurricane frequency are explored by applying

  2. assembling north china: Topics by E-print Network

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

    to study eastern North Dakota 7 Economic Analysis of a Waste Water Resource Heat Pump Air-Conditioning System in North China Texas A&M University - TxSpace Summary: This...

  3. NorthFairwayRd. Indoor Practice

    E-Print Network [OSTI]

    Collins, Gary S.

    St. AnthonySt. HallDr. KennyDr. DeaneDr. Janet St. Whitman St. Palouse St.Olsen St. Main St. Paradise St. Mc.Valley Rd. Illinois St. To Palouse, Hwy. 27 North Fairway Rd. Round Top Terrace Steptoe Kamiak Valley Road

  4. State of Solar Photovoltaics in North Carolina

    E-Print Network [OSTI]

    .dsireusa.org / January 2012 Solar water heating eligible * Extra credit for solar or customer-sited renewables Includes: 20% x 2020 (IOUs) 10% x 2020 (co-ops) HI: 40% x 2030 Minimum solar or customer-sited requirement TXState of Solar Photovoltaics in North Carolina Amy Heinemann March 7, 2012 #12;http

  5. The University of North Carolina "the Policyholder"

    E-Print Network [OSTI]

    Thaxton, Christopher S.

    ., may not meet the minimum standards required by the health care reform law for the restrictionsThe University of North Carolina "the Policyholder" System-Wide Student Health Insurance Plan Student Health Insurance Plan (For Students Eligible for the Hard Waiver Plan) S30645NUFIC Plan

  6. EA-1920: Border Winds 2, North Dakota

    Broader source: Energy.gov [DOE]

    DOE’s Western Area Power Administration is preparing this EA to evaluate the environmental impacts of a proposed wind turbine generation facility in Rolette and Towner Counties in North Dakota. If the proposal is implemented, power generated by this facility would interconnect at an existing substation and would be distributed via an existing transmission line owned and operated by Western.

  7. Murchison project organization and control. [North Sea

    SciTech Connect (OSTI)

    Lauren, P.K.; Hall, J.N.

    1982-07-01T23:59:59.000Z

    A description is given of the project management organization and the management control systems used for Conoco's Murchison field development in the North Sea. These systems created for Murchison proved largely successful and have been enhanced for use during the Hutton field development. Management concepts are described in the context of the cost control system. 3 refs.

  8. North Dakota State University Postoc Biobased Polymers

    E-Print Network [OSTI]

    Alpay, S. Pamir

    North Dakota State University Postoc ­ Biobased Polymers A postdoctoral position is available in the area of synthesis and characterization of novel biobased thermosetting polymer systems for coatings will include the synthesis of monomers and polymers, preparation of coatings, thermosets, etc., preparation

  9. University of North Florida Logistics and Supply

    E-Print Network [OSTI]

    Asaithambi, Asai

    AST&L University of North Florida Logistics and Supply Chain Management Logistics and distribution skills training to begin and advance your career #12;Certification in Transportation and Logistics Cohort Program The UNF Certification in Transportation and Logistics (CTL) Cohort Program is a jointly sponsored

  10. North Dakota SHOPP final performance report

    SciTech Connect (OSTI)

    NONE

    1996-12-31T23:59:59.000Z

    During the last four heating seasons, implementing SHOPP within the state of North Dakota, telephone surveys were conducted covering samples of between 26 and 30 residential propane dealers. In conducting the SHOPP survey in North Dakota, data collection was limited to residential propane prices. The survey commenced the first Monday in October and ended in March. The surveys were normally conducted on the first and third Monday of each month. However, in the 1991/93 and 1993/94 heating seasons, the collection of data was increased briefly to weekly survey at the direction of EIA. In conducting the survey, the data was inputted into the PEDRO computerized data system for processing and transmittal to EIA. Detailed printouts of the price data from the 1995/96 SHOPP propane survey are contained in the attached tables. The survey data, as analyzed by EIA, resulted in estimated average residential propane prices for the state of North Dakota during the heating season. Attached are line charts which plot this average price for propane within the state against the calculated average for PADD II, of which North Dakota is a part.

  11. ELECTROPHORETIC CHARACTERIZATION OF NORTH AMERICAN POTATO CULTIVARSl

    E-Print Network [OSTI]

    Douches, David S.

    1991) 767 ELECTROPHORETIC CHARACTERIZATION OF NORTH AMERICAN POTATO CULTIVARSl D. S. Douches identify potato cultivars. Both leafand tuber tissue were sampled in thirteen enzyme systems. Two buffer means to discriminate sexually-derived potato cultivars. Compendio Se analizaron un total de 112

  12. INVESTIGATION Retrospective View of North American Potato

    E-Print Network [OSTI]

    Douches, David S.

    INVESTIGATION Retrospective View of North American Potato (Solanum tuberosum L.) Breeding in the 20, Madison, Wisconsin, 53706 ABSTRACT Cultivated potato (Solanum tuberosum L.), a vegetatively propagated explore the effects of potato breeding at the genome level, we used 8303 single-nucleotide polymorphism

  13. North American SynchroPhasor Initiative (NASPI) Technical Report...

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

    Synchrophasor Technology and Renewables Integration North American SynchroPhasor Initiative (NASPI) Technical Report - Synchrophasor Technology and Renewables Integration This...

  14. North Shore Gas- Commercial and Industrial Prescriptive Rebate Program

    Broader source: Energy.gov [DOE]

    '''Contact North Shore Gas for information on bonus equipment rebates which are only available until April 30, 2013.'''

  15. North-South Standards Harmonization and International Trade

    E-Print Network [OSTI]

    Paris-Sud XI, Université de

    North-South Standards Harmonization and International Trade Olivier CADOT Lausanne University Anne,version1-20Mar2014 #12;1 North-South Standards Harmonization and International Trade Anne-Célia Disdier investigate whether the technical requirements contained in North-South Agreements affect international trade

  16. Solar storm Risk to the north American electric grid

    E-Print Network [OSTI]

    Schrijver, Karel

    Solar storm Risk to the north American electric grid #12;Key Contacts Trevor Maynard Exposure reserved #12;Solar storm risk to the north American electric grid 3 Contents 1 EXECUTIVE SUMMARY 4 2 REFERENCES 19 #12;Solar storm risk to the north American electric grid 4 1 Executive Summary A Carrington

  17. Improving Conditions for Green Building Construction in North

    E-Print Network [OSTI]

    Improving Conditions for Green Building Construction in North America QUEST 2012 INTERNATIONAL green building a standard practice throughout North America. · In 2011, the CEC formed the Trilateral Green Building Task Force, comprising North American leaders from the green building industry

  18. NC STATE UNIVERSITY College of Engineering North Carolina Solar Center

    E-Print Network [OSTI]

    NC STATE UNIVERSITY College of Engineering North Carolina Solar Center Room 210, McKimmon Center been awarded by the North Carolina Solar Center at NC State University to reduce mobile emissions to reduce transportation related emissions in North Carolina counties that do not meet national ambient air

  19. Late Quaternary history of Washington Land, North Greenland OLE BENNIKE

    E-Print Network [OSTI]

    Ingólfsson, Ólafur

    Late Quaternary history of Washington Land, North Greenland OLE BENNIKE Bennike, O. 2002 (September): Late Quaternary history of Washington Land, North Greenland. Boreas, Vol. 31, 260­272. Oslo. ISSN 0300-9483. During the last glacial stage, Washington Land in western North Greenland was probably completely inun

  20. Towards a Realistic Axion Star

    SciTech Connect (OSTI)

    Barranco, J. [Instituto de Fisica, Universidad Nacional Autonoma de Mexico, Apdo. Postal 20-360, 01000. Mexico D.F. (Mexico); Bernal, A. [Instituto de Fisica de la Universidad de Guanajuato, C.P. 37150, Leon, Guanajuato (Mexico)

    2008-07-02T23:59:59.000Z

    In this work we estimate the radius and the mass of a self-gravitating system made of axions. The quantum axion field satisfies the Klein-Gordon equation in a curved space-time and the metric components of this space-time are solutions to the Einstein equations with a source term given by the vacuum expectation value of the energy-momentum operator constructed from the axion field. As a first step towards an axion star we consider the up to the {phi}{sup 6} term in the axion potential expansion. We found that axion stars would have masses of the order of asteroids ({approx}10{sup -10}M{center_dot}) and radius of the order {approx} few centimeters.

  1. Magnetic fields in Neutron Stars

    E-Print Network [OSTI]

    Viganò, Daniele; Miralles, Juan A; Rea, Nanda

    2015-01-01T23:59:59.000Z

    Isolated neutron stars show a diversity in timing and spectral properties, which has historically led to a classification in different sub-classes. The magnetic field plays a key role in many aspects of the neutron star phenomenology: it regulates the braking torque responsible for their timing properties and, for magnetars, it provides the energy budget for the outburst activity and high quiescent luminosities (usually well above the rotational energy budget). We aim at unifying this observational variety by linking the results of the state-of-the-art 2D magneto-thermal simulations with observational data. The comparison between theory and observations allows to place two strong constraints on the physical properties of the inner crust. First, strong electrical currents must circulate in the crust, rather than in the star core. Second, the innermost part of the crust must be highly resistive, which is in principle in agreement with the presence of a novel phase of matter so-called nuclear pasta phase.

  2. Winds of Planet Hosting Stars

    E-Print Network [OSTI]

    Nicholson, B A; Brookshaw, L; Vidotto, A A; Carter, B D; Marsden, S C; Soutter, J; Waite, I A; Horner, J

    2015-01-01T23:59:59.000Z

    The field of exoplanetary science is one of the most rapidly growing areas of astrophysical research. As more planets are discovered around other stars, new techniques have been developed that have allowed astronomers to begin to characterise them. Two of the most important factors in understanding the evolution of these planets, and potentially determining whether they are habitable, are the behaviour of the winds of the host star and the way in which they interact with the planet. The purpose of this project is to reconstruct the magnetic fields of planet hosting stars from spectropolarimetric observations, and to use these magnetic field maps to inform simulations of the stellar winds in those systems using the Block Adaptive Tree Solar-wind Roe Upwind Scheme (BATS-R-US) code. The BATS-R-US code was originally written to investigate the behaviour of the Solar wind, and so has been altered to be used in the context of other stellar systems. These simulations will give information about the velocity, pressur...

  3. Search for bright stars with infrared excess

    SciTech Connect (OSTI)

    Raharto, Moedji, E-mail: moedji@as.itb.ac.id [Astronomy Research Division, Faculty of Mathematics and Natural Sciences, Institut Teknologi Bandung, Jl. Ganesha 10, Bandung 40132 (Indonesia)

    2014-03-24T23:59:59.000Z

    Bright stars, stars with visual magnitude smaller than 6.5, can be studied using small telescope. In general, if stars are assumed as black body radiator, then the color in infrared (IR) region is usually equal to zero. Infrared data from IRAS observations at 12 and 25?m (micron) with good flux quality are used to search for bright stars (from Bright Stars Catalogues) with infrared excess. In magnitude scale, stars with IR excess is defined as stars with IR color m{sub 12}?m{sub 25}>0; where m{sub 12}?m{sub 25}?=??2.5log(F{sub 12}/F{sub 25})+1.56, where F{sub 12} and F{sub 25} are flux density in Jansky at 12 and 25?m, respectively. Stars with similar spectral type are expected to have similar color. The existence of infrared excess in the same spectral type indicates the existence of circum-stellar dust, the origin of which is probably due to the remnant of pre main-sequence evolution during star formation or post AGB evolution or due to physical process such as the rotation of those stars.

  4. North Shore Solar & Windpower | 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 America Drilling Fluids MarketNorthNorthNorthNorth

  5. North Slope action holds West Coast spotlight

    SciTech Connect (OSTI)

    Wilson, H.M.

    1981-05-25T23:59:59.000Z

    The first oil from a North Slope reservoir outside Prudhoe Bay will begin flowing next year at rate of 80,000 bpd from Kuparuk field now under development by Atlantic Richfield Co. west of Prudhoe Bay. Just north of the Kuparuk development, Conoco Inc. has found a commercial reservoir in the Milne Point unit and will be drilling confirmation and delineation wells later this year and in 1982. Another area which very likely will be developed for production is located northeast of Prudhoe Bay, where Sohio Alaska Petroleum Co. has announced discoveries in 2 Sag Delta wells. In California's San Joaquin Valley, 3 Kern County fields - South Belridge, Elk Hills, and Lost Hills - are the sites of intensive drilling. Seven rigs are working in the Santa Barbara Channel, 3 of them developing known fields from permanent platforms.

  6. Sequentially Triggered Star Formation in OB Associations

    E-Print Network [OSTI]

    Thomas Preibisch; Hans Zinnecker

    2006-10-27T23:59:59.000Z

    We discuss observational evidence for sequential and triggered star formation in OB associations. We first review the star formation process in the Scorpius-Centaurus OB association, the nearest OB association to the Sun, where several recent extensive studies have allowed us to reconstruct the star formation history in a rather detailed way. We then compare the observational results with those obtained for other OB associations and with recent models of rapid cloud and star formation in the turbulent interstellar medium. We conclude that the formation of whole OB subgroups (each consisting of several thousand stars) requires large-scale triggering mechanisms such as shocks from expanding wind and supernova driven superbubbles surrounding older subgroups. Other triggering mechanisms, like radiatively driven implosion of globules, also operate, but seem to be secondary processes, forming only small stellar groups rather than whole OB subgroups with thousands of stars.

  7. Radio Triggered Star Formation in Cooling Flows

    E-Print Network [OSTI]

    B. R. McNamara

    1999-11-08T23:59:59.000Z

    The giant galaxies located at the centers of cluster cooling flows are frequently sites of vigorous star formation. In some instances, star formation appears to have been triggered by the galaxy's radio source. The colors and spectral indices of the young populations are generally consistent with short duration bursts or continuous star formation for durations much less than 1 Gyr, which is less than the presumed ages of cooling flows. The star formation properties are inconsistent with fueling by a continuously accreting cooling flow, although the prevalence of star formation is consistent with repeated bursts and periodic refueling. Star formation may be fueled, in some cases, by cold material stripped from neighboring cluster galaxies.

  8. Boson stars: Chemical potential and quark condensates

    E-Print Network [OSTI]

    Jitesh R. Bhatt; V. Sreekanth

    2010-05-06T23:59:59.000Z

    We study the properties of a star made of self-gravitating bosons gas in a mean-field approximation. A generalized set of Tolman-Oppenheimer-Volkov(TOV) equations is derived to incorporate the effect of chemical-potential in the general relativistic frame work. The metric-dependence of the chemical-potential gives a new class of solutions for the boson stars. It is demonstrated that the maximum mass and radius of the star change in a significant way when the effect of finite chemical-potential is considered. We also discuss the case of a boson star made of quark-condensates. It is found that when the self-interaction between the condensates is small as compared to their mass, the typical density is too high to form a diquark-boson star. Our results indicate that the star of quark-condensate may be formed in a low-density and high-pressure regime.

  9. SALT CREEK ROADWI-80North STADIUMDRIVE

    E-Print Network [OSTI]

    Powers, Robert

    thSt. 0thSt. 1thSt. 2thSt. 3thSt. 4thSt. . t. 10 SALT CREEK ROADWI-80North 10THSTREET 14THSTREET W STADIUM DRIVE PARKING GARAGE 9thSt. 10thSt. 11thSt. 12thSt. 13thSt. 14thSt. 16thSt. 10thSt. SALT CREEK

  10. Differences in the Cooling Behavior of Strange Quark Matter Stars and Neutron Stars

    E-Print Network [OSTI]

    Christoph Schaab; Bernd Hermann; Fridolin Weber; Manfred K. Weigel

    1997-02-21T23:59:59.000Z

    The general statement that hypothetical strange (quark matter) stars cool more rapidly than neutron stars is investigated in greater detail. It is found that the direct Urca process could be forbidden not only in neutron stars but also in strange stars. In this case, strange stars are slowly cooling, and their surface temperatures are more or less indistinguishable from those of slowly cooling neutron stars. Furthermore the case of enhanced cooling is reinvestigated. It shows that strange stars cool significantly more rapidly than neutron stars within the first $\\sim 30$ years after birth. This feature could become particularly interesting if continued observation of SN 1987A would reveal the temperature of the possibly existing pulsar at its center.

  11. Parent Stars of Extrasolar Planets. XV. Host Star Rotation Revisited with {\\it Kepler} Data

    E-Print Network [OSTI]

    Gonzalez, Guillermo

    2015-01-01T23:59:59.000Z

    We employed published rotation periods of {\\it Kepler} field stars to test whether stars hosting planets tend to rotate more slowly than stars without known planets. Spectroscopic vsini observations of nearby stars with planets have indicated that they tend to have smaller visni values. We employ data for {\\it Kepler} Objects of Interest (KOIs) from the first 16 quarters of its original mission; stellar parameters are based on the analysis of the first 17 quarters. We confirm that KOI stars rotate more slowly with much greater confidence than we had previously found for nearby stars with planets. Furthermore, we find that stars with planets of all types rotate more slowly, not just stars with giant planets.

  12. EPA ENERGY STAR Webinar: How to Apply for the ENERGY STAR Certification

    Broader source: Energy.gov [DOE]

    Join us to learn about applying for ENERGY STAR Certification in Portfolio Manager. Understand the value of the ENERGY STAR certification, see the step-by-step process of applying, and gain tips to...

  13. From nuclear matter to Neutron Stars

    E-Print Network [OSTI]

    T. K. Jha

    2009-02-02T23:59:59.000Z

    Neutron stars are the most dense objects in the observable Universe and conventionally one uses nuclear theory to obtain the equation of state (EOS) of dense hadronic matter and the global properties of these stars. In this work, we review various aspects of nuclear matter within an effective Chiral model and interlink fundamental quantities both from nuclear saturation as well as vacuum properties and correlate it with the star properties.

  14. Legal improvements brighten North Africa production outlook

    SciTech Connect (OSTI)

    NONE

    1997-05-12T23:59:59.000Z

    North Africa`s three main oil producing countries soon will reap benefits of past moves by their governments to encourage investment by international companies. Production of crude oil and natural gas in Algeria, Egypt, and Libya is ready to increase from suppressed levels of the recent past, says International Energy Agency, Paris. The gains are possible despite political risks, total reserves accounting for only 4% of the world`s crude reserves, and oil prices well below levels of the 1980s, when the countries` flow rates peaked. The reason: producing oil in North Africa is profitable. In a recent study entitled North Africa Oil and Gas, IEA attributes the bright production outlook to improvements that the countries` governments have made in the past decade to hydrocarbon laws and the fiscal terms they offer international investors. According to announced plans, the three countries` combined capacity to produce crude oil will rise 18% by the year 2000 to 3.65 million b/d, and a further gain of 700,000 b/d is possible. IEA expects production capacity for natural gas to increase 50% from its 1995 level by 2000 to a combined 139.4 billion cu m/year. This paper discusses production capacities, Algeria`s record, improvements in Egypt, and Libya`s changes.

  15. Abundances of massive stars: some recent developments

    E-Print Network [OSTI]

    T. Morel

    2008-11-25T23:59:59.000Z

    Thanks to their usefulness in various fields of astrophysics (e.g. mixing processes in stars, chemical evolution of galaxies), the last few years have witnessed a large increase in the amount of abundance data for early-type stars. Two intriguing results emerging since the last reviews on this topic will be discussed: (a) nearby OB stars exhibit metal abundances generally lower than the solar/meteoritic estimates; (b) evolutionary models of single objects including rotation are largely unsuccessful in explaining the CNO properties of stars in the Galaxy and in the Magellanic clouds.

  16. A Galactic O-Star Catalog

    E-Print Network [OSTI]

    J. Maíz-Apellániz; N. R. Walborn; H. Á. Galué; L. H. Wei

    2003-11-09T23:59:59.000Z

    We have produced a catalog of 378 Galactic O stars with accurate spectral classifications which is complete for Vweb-based version with links to online services.

  17. Chemical Enrichment from Massive Stars in Starbursts

    E-Print Network [OSTI]

    Henry A. Kobulnicky

    1999-01-20T23:59:59.000Z

    The warm ionized gas in low-mass, metal-poor starforming galaxies is chemically homogeneous despite the prevalence of large H II regions which contain hundreds of evolved massive stars, supernovae, and Wolf-Rayet stars with chemically-enriched winds. Galaxies with large Wolf-Rayet star content are chemically indistinguishable from other vigorously star-forming galaxies. Furthermore, no significant localized chemical fluctuations are present in the vicinity of young star clusters, despite large expected chemical yields of massive stars. An ad-hoc fine-tuning of the release, dispersal and mixing of the massive star ejecta could give rise to the observed homogeneity, but a more probable explanation is that fresh ejecta from massive stars reside in a hard-to-observe hot or cold phase. In any case, the observed chemical homogeneity indicates that heavy elements which have already mixed with the warm interstellar medium (thus accessible to optical spectroscopy) are homogeneously dispersed over scales exceeding 1 kpc. Mixing of fresh ejecta with the surrounding warm ISM apparently requires longer than the lifetimes of typical H II regions (>10^7 yrs). The lack of observed localized chemical enrichments is consistent with a scenario whereby freshly-synthesized metals from massive stars are expelled into the halos of galaxies in a hot, 10^6 K phase by supernova-driven winds before they cool and ``rain'' back down upon the galaxy, creating gradual enrichments on spatial scales >1 kpc.

  18. STARS Training Needs Assessment Learner Instructions 07/2009 1 STARS Training Needs Assessment

    E-Print Network [OSTI]

    Ford, James

    STARS Training Needs Assessment Learner Instructions 07/2009 1 STARS Training Needs Assessment. · Click the STARS (Training) tab. · Click My Training Needs in the left menu. · Click the secure link to continue to My Training Needs. On the Training Needs Assessment page, click the box to the left of every

  19. AP STAR AWARDS Who is the shining star in your department?

    E-Print Network [OSTI]

    AP STAR AWARDS Who is the shining star in your department? Give them the honor they deserve! Deadline for application is February 4, 2011 The AP Stars award was created to express appreciation individual performance at CSU. Anyone can nominate an AP employee for this award! The goal

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

    SciTech Connect (OSTI)

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

    2013-07-10T23:59:59.000Z

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

  1. STAR METRICS | Department of Energy

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page onYouTube YouTube Note: Since the.pdfBreakingMay 2015 <Department of iiBiodiesel |NYDepartmentOctober 10,TechnologySTAR

  2. Energy Star | 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 JumpConceptual Model,DOEHazel Crest,EnergySerranopolis Jump to:EconCompaniesMainEnergyEnergyPublicStar

  3. Fast Radio Bursts from Axion Stars

    E-Print Network [OSTI]

    Aiichi Iwazaki

    2015-04-20T23:59:59.000Z

    Axions are one of the most promising candidates of dark matter. The axions have been shown to form miniclusters with masses $\\sim 10^{-12}M_{\\odot}$, some of which condense to form axion stars. We have recently shown a possible origin of fast radio bursts ( FRBs ) by assuming that the axion stars are main component of halos: FRBs arise from the collisions between the axion stars and neutron stars. It is remarkable that the masses of the axion stars obtained by the comparison of the theoretical and observational event rates are coincident with the mass $\\sim 10^{-12}M_{\\odot}$. In this paper, we describe our model of FRBs in detail. We derive the approximate solutions of the axion stars with large radii and constraint their masses for the approximation to be valid. The FRBs are emitted from the atmospheres of neutron stars in the collisions. By calculating the optical depth of the atmospheres, we show that they are transparent for the radiations with the frequency given by the axion mass $m_a$ such as $m_a/2\\pi\\simeq 2.4$GHz$(m_a/10^{-5}\\rm eV)$. Although the radiations are linearly polarized when they are emitted, they are shown to be circularly polarized after they pass magnetospheres of neutron stars. We also show that the frequencies of the FRBs have finite bandwidths owing to the Doppler effect when the neutron stars pass through the axion stars. The presence of the finite bandwidths is a distinctive feature of our model and can be tested observationally. Furthermore, we show that similar FRBs may arise when the axion stars collide with magnetic white dwarfs. The characteristic feature is that the durations of the bursts are of the order of $0.1$second and they are monochromatic contrary to the FRBs observed. We can determine the axion mass by the observating both of the their frequencies and red shifts $z$.

  4. STAR-TO-STAR IRON ABUNDANCE VARIATIONS IN RED GIANT BRANCH STARS IN THE GALACTIC GLOBULAR CLUSTER NGC 3201

    SciTech Connect (OSTI)

    Simmerer, Jennifer; Ivans, Inese I.; Filler, Dan [Department of Physics and Astronomy, University of Utah, Salt Lake City, UT 84112 (United States); Francois, Patrick [Paris-Meudon Observatory, France and Universite de Picardie Jules Verne, F-80080 Amiens (France); Charbonnel, Corinne [Geneva Observatory, University of Geneva, Chemin des Maillettes 51, CH-1290 Versoix (Switzerland); Monier, Richard [Laboratoire Hippolyte Fizeau, Universite Nice Sophia Antipolis, Parc Valrose, F-06000 Nice (France); James, Gaeel, E-mail: jennifer@physics.utah.edu, E-mail: iii@physics.utah.edu, E-mail: dan.filler@utah.edu, E-mail: patrick.francois@obspm.fr, E-mail: corinne.charbonnel@unige.ch, E-mail: richard.monier@unice.fr, E-mail: gjames@eso.org [European Southern Observatory, Karl-Schwarzschild-Strasse 2, D-85748 Garching bei Munchen (Germany)

    2013-02-10T23:59:59.000Z

    We present the metallicity as traced by the abundance of iron in the retrograde globular cluster NGC 3201, measured from high-resolution, high signal-to-noise spectra of 24 red giant branch stars. A spectroscopic analysis reveals a spread in [Fe/H] in the cluster stars at least as large as 0.4 dex. Star-to-star metallicity variations are supported both through photometry and through a detailed examination of spectra. We find no correlation between iron abundance and distance from the cluster core, as might be inferred from recent photometric studies. NGC 3201 is the lowest mass halo cluster to date to contain stars with significantly different [Fe/H] values.

  5. Parent Stars of Extrasolar Planets. VIII. Chemical Abundances for 18 Elements in 31 Stars

    E-Print Network [OSTI]

    Guillermo Gonzalez; Chris Laws

    2007-04-17T23:59:59.000Z

    We present the results of detailed spectroscopic abundance analyses for 18 elements in 31 nearby stars with planets. The resulting abundances are combined with other similar studies of nearby stars with planets and compared to a sample of nearby stars without detected planets. We find some evidence for abundance differences between these two samples for Al, Si and Ti. Some of our results are in conflict with a recent study of stars with planets in the SPOCS database. We encourage continued study of the abundance patterns of stars with planets to resolve these discrepancies.

  6. ARCHEOLOGY OF AN ANCIENT STAR

    SciTech Connect (OSTI)

    Fuhrmann, K.; Chini, R.; Haas, M.; Hackstein, M.; Ramolla, M. [Astronomisches Institut, Ruhr-Universitaet Bochum, Universitaetsstrasse 150, D-44801 Bochum (Germany); Bernkopf, J., E-mail: klaus@ing.iac.es [University of Applied Sciences Augsburg, An der Hochschule 1, D-86161 Augsburg (Germany)

    2012-12-20T23:59:59.000Z

    We report on the bright and late F-type star HR 3138, which, with respect to its chemistry in the [Mg/H]-[Fe/Mg] abundance plane, we identify as an old Population II member. Evolutionary tracks are, however, in conflict with this finding and instead imply an age of only {tau} = 5.6{sup -1.8}{sub +{sub 2.2}} Gyr (2{sigma}) for HR 3138. We discuss this controversy in light of existing high-precision radial velocity surveys that mostly exclude the case of a blue straggler primary and a white dwarf secondary. While it is realized that a stellar merger can principally solve the issue and there is indeed observational evidence for mass accretion on HR 3138 from the absence of lithium in its photosphere, we also consider the interesting circumstance that HR 3138 lies in the direction to the 350 pc distant, young open cluster NGC 2516. We point to the possibility that the progenitor cloud of this cluster may likewise account for former mass accretion and we argue in particular for a dynamical friction with this cloud as a plausible cause for the strikingly common Galactic rotational velocity of the field star and open cluster.

  7. Cooling of Color Superconducting Compact Stars

    E-Print Network [OSTI]

    David Blaschke

    2006-03-26T23:59:59.000Z

    We review the status of research on the cooling of compact stars, with emphasis on the influence of color superconducting quark matter phases. Although a consistent microscopic approach is not yet available, severe constraints on the phase structure of matter at high densities come from recent mass and cooling observations of compact stars.

  8. The first stars: Where did they form?

    E-Print Network [OSTI]

    Jordi Miralda-Escude

    1999-12-15T23:59:59.000Z

    Several emerging links between high-redshift observational cosmology and the Galactic fossil evidence found in the kinematics, metallicities and ages of Milky Way stars are discussed. In a flat Cold Dark Matter model with $\\Omega\\simeq 0.3$ that agrees with present large-scale structure observations, the oldest stars in the Milky Way should have formed in the first halos where gas was able to cool, at $z\\simeq 20$. These earliest, weakly bound dwarf galaxies probably turned only a small fraction of their gas to stars, which should be metal-poor. However, the merging rate in the early universe was much faster than the present one, so massive halos with more efficient star formation and metallicities up to the highest values present today in the bulge could have formed less than $10^9$ years after the oldest stars. The mean metallicity produced in the universe by a given redshift is related to the mean surface brightness of star-forming galaxies above this redshift, and also to the reionization epoch if galaxies were the dominant sources of ionizing radiation. The biased distribution of the early dwarf galaxies where the first stars formed should result in an age gradient with radius of the low-metallicity stars in the Milky Way, with the oldest ones concentrated in the bulge and the youngest in the outer halo.

  9. FAINT RADIO SOURCES AND STAR FORMATION HISTORY

    E-Print Network [OSTI]

    Waddington, Ian

    FAINT RADIO SOURCES AND STAR FORMATION HISTORY Deborah B. Haarsma 1 , R. Bruce Partridge 1 , Ian 85287­1504 USA Abstract. Faint extragalactic radio sources provide important information about the global history of star formation. Sensitive radio observations of the Hubble Deep Field and other fields

  10. Long Baseline Interferometry of Be Stars

    E-Print Network [OSTI]

    Olivier Chesneau; Thomas Rivinius

    2005-10-24T23:59:59.000Z

    We give an introduction to interferometrical concepts and their applicability to Be stars. The first part of the paper concentrates on a short historic overview and basic principles of two-beam interferometric observations. In the second part, the VLTI/MIDI instrument is introduced and its first results on Be stars, obtained on alpha Ara and delta Cen, are outlined.

  11. First Structure Formation and the First Stars

    E-Print Network [OSTI]

    Michael L. Norman; Tom Abel; Greg Bryan

    2000-05-11T23:59:59.000Z

    We discuss the results of recent 3D simulations of first structure formation in relationship to the formation of the first stars. On the basis of a new, high-resolution AMR simulation (spatial dynamic range = 30,000,000), we conclude that the first stars are likely to be massive.

  12. An Observational Look at Rotating Stars

    E-Print Network [OSTI]

    Wiita, Paul J.

    . The Doppler Effect induces a shift at each end of the star's spectrum as one limb recedes, while the other radial velocities and the resulting shifts in wavelength from the various parts of the star (Kaler 1989 be calculated, or perhaps even the angular velocity" (Abney 1877). The component of the radial velocity observed

  13. ENERGY STAR for Homes - Building America Top Innovation | Department...

    Energy Savers [EERE]

    Innovation. See another example of a builder constructing to ENERGY STAR for Homes. Find case studies of Building America projects across the country that support ENERGY STAR for...

  14. ENERGY STAR® Guide to Energy Efficiency Competitions for Buildings...

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

    ENERGY STAR Guide to Energy Efficiency Competitions for Buildings and Plants ENERGY STAR Guide to Energy Efficiency Competitions for Buildings and Plants This step-by-step...

  15. Clean Energy Action Star Governor Schwarzenegger to Keynote ARPA...

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

    Action Star Governor Schwarzenegger to Keynote ARPA-E Energy Innovation Summit Clean Energy Action Star Governor Schwarzenegger to Keynote ARPA-E Energy Innovation Summit February...

  16. ENERGY STAR Portfolio Manager and Utility Benchmarking Programs...

    Energy Savers [EERE]

    ENERGY STAR Portfolio Manager and Utility Benchmarking Programs: Effectiveness as a Conduit to Utility Energy Efficiency Programs ENERGY STAR Portfolio Manager and Utility...

  17. Webinar: ENERGY STAR Hot Water Systems for High Performance Homes...

    Energy Savers [EERE]

    Webinar: ENERGY STAR Hot Water Systems for High Performance Homes Webinar: ENERGY STAR Hot Water Systems for High Performance Homes This presentation is from the Building America...

  18. The Isotopic Abundances of Magnesium in Stars

    E-Print Network [OSTI]

    Pamela Gay; David L. Lambert

    1999-11-11T23:59:59.000Z

    Isotopic abundance ratios 24^Mg:25^Mg:26^Mg are derived for 20 stars from high- resolution spectra of the MgH A-X 0-0 band at 5140AA. With the exception of the weak g-band giant HR 1299, the stars are dwarfs that sample the metallicity range -1.8 < [Fe/H] <0.0. The abundance of 25^Mg amd 26^Mg relative to the dominant isotope 24^Mg decreases with decreasing [Fe/H] in fair accord with predictions from a recent model of galactic chemical evolution in which the Mg isotopes are synthesised by massive stars. Several stars appear especially enriched in the heavier Mg isotopes suggesting contamination by material from the envelopes of intermediate-mass AGB stars.

  19. Petrochem industry expands North American MTBE capacity

    SciTech Connect (OSTI)

    Not Available

    1992-10-05T23:59:59.000Z

    This paper reports that petrochemical manufacturers continue to increase methyl tertiary butyl ether (MTBE) capacity in North America. The action reflects refiners' reformulation of gasoline to help reduce auto emissions. Demand for gasoline blending oxygenates such as MTBE is expected to increase as U.S. refiners reconfigure processing trains to produce fuels meeting requirements of the Clean Air Act amendments of 1990. Recent progress includes plans to build an MTBE plant in Mexico and start-ups of plants on the U.S. Gulf Coast and in Canada.

  20. Heat transport in the North Atlantic Ocean

    E-Print Network [OSTI]

    Jung, Glenn Harold

    1955-01-01T23:59:59.000Z

    L IB R AR Y A&M COLLEGE OF TEXAS HEAT TRANSPORT IN THE NORTH ATLANTIS OCEAN A Dissertation By GLENN HAROLD JUNG Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment of the requirements... the velocity difference be? tween depths 1 and 2 in a region between stations situated at positions A and B is used: V1 - v2 z l r - (DA - db ) (2) where c is 1/2X1 sin)#,-ft- Is the angular velocity of the earth, 0 is the latitude of the region, L...

  1. North American Natural Gas Markets. Volume 1

    SciTech Connect (OSTI)

    Not Available

    1988-12-01T23:59:59.000Z

    This report sunnnarizes the research by an Energy Modeling Forum working group on the evolution of the North American natural gas markets between now and 2010. The group`s findings are based partly on the results of a set of economic models of the natural gas industry that were run for four scenarios representing significantly different conditions: two oil price scenarios (upper and lower), a smaller total US resource base (low US resource case), and increased potential gas demand for electric generation (high US demand case). Several issues, such as the direction of regulatory policy and the size of the gas resource base, were analyzed separately without the use of models.

  2. North American Natural Gas Markets. Volume 2

    SciTech Connect (OSTI)

    Not Available

    1989-02-01T23:59:59.000Z

    This report summarizes die research by an Energy Modeling Forum working group on the evolution of the North American natural gas markets between now and 2010. The group`s findings are based partly on the results of a set of economic models of the natural gas industry that were run for four scenarios representing significantly different conditions: two oil price scenarios (upper and lower), a smaller total US resource base (low US resource case), and increased potential gas demand for electric generation (high US demand case). Several issues, such as the direction of regulatory policy and the size of the gas resource base, were analyzed separately without the use of models.

  3. Heat transport in the North Atlantic Ocean 

    E-Print Network [OSTI]

    Jung, Glenn Harold

    1955-01-01T23:59:59.000Z

    L IB R AR Y A&M COLLEGE OF TEXAS HEAT TRANSPORT IN THE NORTH ATLANTIS OCEAN A Dissertation By GLENN HAROLD JUNG Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment of the requirements... the velocity difference be? tween depths 1 and 2 in a region between stations situated at positions A and B is used: V1 - v2 z l r - (DA - db ) (2) where c is 1/2X1 sin)#,-ft- Is the angular velocity of the earth, 0 is the latitude of the region, L...

  4. Tree Fruit Varieties in North Texas.

    E-Print Network [OSTI]

    Brooks, L. E. (Lester E.)

    1936-01-01T23:59:59.000Z

    LIBRARY, A & M COLLEGE, CAVJPUS R62-1136-lorn !4S AGRICULTURAL EXPERIMENT STATION A. B. CONNER, DIRECTOR COLLEGE STATION, BRAZOS COUNTY, TEXAS :TIN NO. 535 NOVEMBER, 1936 DIVISION OF HORTICULTURE LIBRARY Ayi:ulSra! C P;l~e9mi,;al C3Joze... of Texas Cdljege Statioe, Te~as. --- e Fruit Varieties in North Texas AGRIC~TIJTUBUAIJ AND MECHANICAL COI;LEGE OF TEXAS T. 0. WALTON, President rree fruit varietal investigations were begun at the Wichita Valley Station with the setting of a large...

  5. Goshen North Wind Project | 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, search OpenEI ReferenceJump to: navigation, searchGoodyear, Arizona:Georgia:North

  6. North America Energy Efficiency Standards and Labeling

    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'tOrigin of Contamination in Many DevilsForumEnginesVacantmagneticDepartment of EnergyNorth

  7. North American Synchrophasor Initiative (NASPI) Program Information |

    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'tOrigin of Contamination in ManyDepartment of Energy North American Synchrophasor Initiative

  8. North Carolina State Historic Preservation Programmatic Agreement |

    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'tOrigin of Contamination in ManyDepartment of Energy North AmericanDepartment of Energy

  9. North Carolina Geological Survey | 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 REPORTEnergyFarmsPowerKaitian WindpowerNordwind EnergieanlagenNorth

  10. Stora Enso, North America | Department of Energy

    Office of Environmental Management (EM)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level: National5Sales for4,645 3,625 1,006 492 742 33Frequently AskedEnergyIssues DOE's NuclearSpurringSteam Systems SteamR. ThaiStora Enso, North

  11. North Slope Co. Northwest Arctic Co.

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

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative1 First Use of Energy for All Purposes (Fuel and Nonfuel), 2002; Level:Energy: Grid Integration Redefining What's Possible for Renewable Energy:Nanowire Solar541,9337,2AprilBigtoDepartment of Energy NorthBOE

  12. REpower North China 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 directedAnnualProperty Edit with form History Facebook iconQuito,Jump to: navigation,REpower North China Ltd

  13. Clean Cities: North Dakota Clean Cities coalition

    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 Office511041clothAdvanced Materials Advanced. C o w l i t z CPlasma0 12Denver MetroHonoluluMaineMiddleNorth

  14. Kelsey North Geothermal Project | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are8COaBulkTransmissionSitingProcess.pdfGetecGtelInteriasIowa: EnergyKanabec County,KaolinKelleys Island,Kelsey North

  15. North Carolina: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

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

  16. North Dakota/Incentives | 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 View New Pages RecentI WindNorth

  17. North Newton School Corp | 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 View New Pages RecentINorthNorthNewton

  18. North Sky River | 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 View New PagesRiver Shores,North ShoreSky

  19. Shepherds Flat North | 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:Ezfeedflag JumpID-f < RAPID‎ |Rippey JumpAirPower Partners Wind FarmSheepShengruiNorth

  20. North America Power Partners | 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 America Drilling Fluids Market Home

  1. North American Biodiesel | Open Energy Information

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    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 America Drilling Fluids Market Homesource History

  2. EDP Renewables North America | Open Energy Information

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    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 JumpConceptual Model,DOE FacilityDimondale,South, NewDyer County,ECO2 AssetEDP Renewables North

  3. North American Coating Laboratories | Open Energy Information

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    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: Energy Resources JumpOklahoma: Energy Resources JumpJumpNorth

  4. North Brawley Geothermal Area | Open Energy Information

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    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: Energy Resources JumpOklahoma:North Brawley Geothermal Area Jump to:

  5. North East Energy Ltd | Open Energy Information

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    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: Energy Resources JumpOklahoma:NorthCastle,

  6. North Negros Geothermal Area | Open Energy Information

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    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: Energy ResourcesGranby, Connecticut:Muskegon, Michigan: EnergyNorth

  7. Community Wind North | Open Energy Information

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  8. Enel North America | 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 directedAnnualPropertyd8c-a9ae-f8521cbb8489 No revision| OpenElectromagneticElmwood CUSD8EnagraEneEnel North

  9. Expanding North Carolina Energy Efficiency and Renewable Lending...

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

    Lending Programs: Marketing Snapshot This is a document from the Environmental Finance Center at University of North Carolina at Chapel Hill, posted to the website of the...

  10. Expanding North Carolina Energy Efficiency and Renewable Lending...

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

    and Renewable Lending Programs: Market Snapshot SEPTEMBER 2010 Environmental Finance Center at University of North Carolina at Chapel Hill 1 Funding provided by the DOE...

  11. NorthWestern Energy- Residential Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    NorthWestern Energy offers a variety of rebates for residential customers to make energy efficiency improvements in their existing homes. Customers who purchase or implement energy efficient...

  12. Competition and Reliability in North American Energy Markets...

    Energy Savers [EERE]

    Issue Paper Synopses Jack Casazza, Frank Delea, and George Loehr argue that "deregulation and restructuring have had a devastating effect on the reliability of the North...

  13. North American Industry Classification System (NAICS) Search Tool

    Broader source: Energy.gov [DOE]

    The North American Industry Classification System (NAICS) is the standard used by Federal statistical agencies in classifying business establishments for the purpose of collecting, analyzing, and...

  14. North Dakota Recovery Act State Memo | Department of Energy

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

    a broad range of clean energy projects, from energy efficiency and the smart grid to clean coal, wind, and carbon capture and storage. Through these investments, North Dakota's...

  15. North Brawley Power Plant Placed in Service; Currently Generating...

    Open Energy Info (EERE)

    navigation, search OpenEI Reference LibraryAdd to library Web Site: North Brawley Power Plant Placed in Service; Currently Generating 17 MW; Additional Operations Update Author...

  16. Final Environmental Impact Report: North Brawley Ten Megawatt...

    Open Energy Info (EERE)

    Final Environmental Impact Report: North Brawley Ten Megawatt Geothermal Demonstration Facility Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Final...

  17. The 2004 Geothermal Map Of North America Explanation Of Resources...

    Open Energy Info (EERE)

    Of Resources And Applications Jump to: navigation, search OpenEI Reference LibraryAdd to library Conference Paper: The 2004 Geothermal Map Of North America Explanation Of...

  18. North American Standard Level VI Inspection Program Update: Ensuring...

    Office of Environmental Management (EM)

    Ensuring Safe Transportation of Radioactive Material Presentation made by Carlisle Smith for the NTSF annual meeting held from May 14-16, 2013 in Buffalo, NY North American...

  19. North Carolina College to Implement Efficient Climate Controls

    Broader source: Energy.gov [DOE]

    The stimulus is saving North Carolina’s taxpayers some money while helping Richmond Community College, in Hamlet, become more energy-efficient.

  20. analysis north america: Topics by E-print Network

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

    2002 Environmental Sciences and Ecology Websites Summary: quality as they vary with climate in grass- land ecosystems throughout central North America including tall-grass...

  1. atlantic north america: Topics by E-print Network

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

    Summary: Atlantic SST and aerosol, Sahel rainfall, and Atlantic hurricanes. When the North Atlantic Ocean was cold Atlantic expe- rienced a high concentration of dust. The...

  2. North American Energy Ministers Take Further Action on Energy...

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

    July 23, 2007 - 2:55pm Addthis Joint Communiqu VICTORIA - Energy ministers for Canada, Mexico and the United States took another step toward enhancing North American energy...

  3. aboriginal north americans: Topics by E-print Network

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

    markets hit by United States housing crash 19 Columbia, Canada. Currently about 80% of pellet production from North America is exported to Europe. Recent 11 RESOURCE SELECTION...

  4. annual north american: Topics by E-print Network

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

    markets hit by United States housing crash 19 Columbia, Canada. Currently about 80% of pellet production from North America is exported to Europe. Recent 19 RESOURCE SELECTION...

  5. Microsoft Word - North Shore WMA CX w checklist.docx

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

    Manager - KEWM-4 Proposed Action: North Shore Wildlife Management Area property funding Fish and Wildlife Project No. and Contract No.: 2008-800-00, BPA-007509 Categorical...

  6. Biocorrosive Thermophilic Microbial Communities in Alaskan North Slope Oil Facilities

    E-Print Network [OSTI]

    Duncan, Kathleen E.

    2010-01-01T23:59:59.000Z

    in Alaskan North Slope oil production facilities. Title:Profiling Despite oil production from several major16) was isolated from oil-production water and has optimal

  7. Moving North Texas Forward by Addressing Alternative Fuel Barriers...

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

    Spent: 23% Timeline Budget Barriers Addressed * Dallas County Schools * National Biodiesel Board * North Texas Commission * The Sales NetWork * West Virginia University...

  8. NorthWestern Energy- Commercial Energy Efficiency Rebate Program

    Broader source: Energy.gov [DOE]

    NorthWestern Energy offers multiple rebate programs for commercial and industrial customers to make energy efficient improvements to their businesses. The E+ Commercial Natural Gas Savings Program...

  9. Renewable Energy World Conference and Expo North America

    Broader source: Energy.gov [DOE]

    Renewable Energy World Conference & Expo North America will be co-located with Power Generation Week, providing networking opportunities with 20,000+ professionals and key decision makers.

  10. Thermal Gradient Holes At North Brawley Geothermal Area (Edmunds...

    Open Energy Info (EERE)

    of the North Brawley, Heber, East Mesa, and Salton Sea Geothermal Areas. Notes Well logs, thermal gradient data, and magnetic data were correlated to form a better geologic...

  11. Thermal Gradient Holes At North Brawley Geothermal Area (Matlick...

    Open Energy Info (EERE)

    Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Thermal Gradient Holes At North Brawley Geothermal Area (Matlick & Jayne, 2008) Exploration...

  12. North East Mississippi E P A | 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 America Drilling Fluids MarketNorthNorth ChinaNorth

  13. North Itasca Electric Coop 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 being directedAnnual SiteofEvaluatingGroup |JilinLuOpenNorth America Drilling Fluids MarketNorthNorthNorth Itasca

  14. North Plains Electric Coop 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 being directedAnnual SiteofEvaluatingGroup |JilinLuOpenNorth America Drilling Fluids MarketNorthNorthNorth

  15. Gravitational waves from perturbed stars

    E-Print Network [OSTI]

    Valeria Ferrari

    2011-05-09T23:59:59.000Z

    Non radial oscillations of neutron stars are associated with the emission of gravitational waves. The characteristic frequencies of these oscillations can be computed using the theory of stellar perturbations, and they are shown to carry detailed information on the internal structure of the emitting source. Moreover, they appear to be encoded in various radiative processes, as for instance in the tail of the giant flares of Soft Gamma Repeaters. Thus, their determination is central to the theory of stellar perturbation. A viable approach to the problem consists in formulating this theory as a problem of resonant scattering of gravitational waves incident on the potential barrier generated by the spacetime curvature. This approach discloses some unexpected correspondences between the theory of stellar perturbations and the theory of quantum mechanics, and allows us to predict new relativistic effects.

  16. Adaptive Optics in Star Formation

    E-Print Network [OSTI]

    Wolfgang Brandner

    2003-09-29T23:59:59.000Z

    Over the past ten years, the concept of adaptive optics has evolved from early experimental stages to a standard observing tool now available at almost all major optical and near-infrared telescope facilities. Adaptive optics will also be essential in exploiting the full potential of the large optical/infrared interferometers currently under construction. Both observations with high-angular resolution and at high contrast, and with a high point source sensitivity are facilitated by adaptive optics. Among the areas which benefit most from the use of adaptive optics are studies of the circumstellar environment (envelopes, disks, outflows), substellar companions and multiple systems, and dense young stellar populations. This contribution highlights some of the recent advances in star formation studies facilitated by adaptive optics, and gives a brief tutorial on optimized observing and data reduction strategies.

  17. Petroleum developments in North Africa in 1979

    SciTech Connect (OSTI)

    Nicod, M.A.

    1980-11-01T23:59:59.000Z

    In the 6 countries covered by this report, the extent of valid petroleum rights, seismic work, and drilling was nearly the same as in 1978. The success rate of wildcat drilling decreased slightly, to 28% (33% in 1978), with 26 oil or gas discoveries. In southwestern Tunisia, the Amoco Sabrina Nord 1 tested 930 bbl of 39/sup 0/ APl oil from Cambrian-Ordovician sandstones - the first oil to come from lower Paleozoic rocks in Tunisia. First commercial oil from Cambrian-Ordovician rocks in western Libya was discovered by Agip A1-NC40 which flowed 1,400 b/d. Highlight of the year in North Africa was in the interior basin of Sudan where the Chevron Abu Gabra 1 tested 900 BOPD of 40/sup 0/ APl oil from Cretaceous rocks; 2 other wells, spudded in late 1979 in the same area, have tested 3,200 and 7,300 b/d, respectively, in early 1980. Discovery well of the interior basin was Chevron Unity 1 which tested small amounts of oil in 1978. Oil production in North Africa in 1979 averaged 3,939,500 b/d compared with 3,802,800 b/d in 1978, an increase of 3.6%.

  18. Methanol Masers and Star Formation

    E-Print Network [OSTI]

    A. M. Sobolev; A. B. Ostrovskii; M. S. Kirsanova; O. V. Shelemei; M. A. Voronkov; A. V. Malyshev

    2006-01-12T23:59:59.000Z

    Methanol masers which are traditionally divided into two classes provide possibility to study important parts of the star forming regions: Class~II masers trace vicinities of the massive YSOs while class~I masers are likely to trace more distant parts of the outflows where newer stars can form. There are many methanol transitions which produce observed masers. This allows to use pumping analysis for estimation of the physical parameters in the maser formation regions and its environment, for the study of their evolution. Extensive surveys in different masing transitions allow to conclude on the values of the temperatures, densities, dust properties, etc. in the bulk of masing regions. Variability of the brightest masers is monitored during several years. In some cases it is probably caused by the changes of the dust temperature which follow variations in the brightness of the central YSO reflecting the character of the accretion process. A unified catalogue of the class II methanol masers consisting of more than 500 objects is compiled. Analysis of the data shows that: physical conditions within the usual maser source vary considerably; maser brightness is determined by parameters of some distinguished part of the object - maser formation region; class II methanol masers are formed not within the outflows but in the regions affected by their propagation. It is shown that the "near" solutions for the kinematic distances to the sources can be used for statistical analysis. The luminosity function of the 6.7 GHz methanol masers is constructed. It is shown that improvement of the sensitivity of surveys can increase number of detected maser sources considerably.

  19. Triggered star formation in the Magellanic Clouds

    E-Print Network [OSTI]

    B. G. Elmegreen; J. Palous; Kenji Bekki

    2006-01-01T23:59:59.000Z

    Abstract. We discuss how tidal interaction between the Large Magellanic Cloud (LMC), the Small Magellanic Cloud (SMC), and the Galaxy triggers galaxy-wide star formation in the Clouds for the last ? 0.2 Gyr based on our chemodynamical simulations on the Clouds. Our simulations demonstrate that the tidal interaction induces the formation of asymmetric spiral arms with high gas densities and consequently triggers star formation within the arms in the LMC. Star formation rate in the present LMC is significantly enhanced just above the eastern edge of the LMC’s stellar bar owing to the tidal interaction. The location of the enhanced star formation is very similar to the observed location of 30 Doradus, which suggests that the formation of 30 Doradus is closely associated with the last Magellanic collision about 0.2 Gyr ago. The tidal interaction can dramatically compress gas initially within the outer part of the SMC so that new stars can be formed from the gas to become intergalactic young stars in the inter-Cloud region (e.g., the Magellanic Bridge). The metallicity distribution function of the newly formed stars in the Magellanic Bridge has a peak of [Fe/H] ? ?0.8, which is significantly lower than the stellar metallicity of the SMC.

  20. WANDERING STARS: AN ORIGIN OF ESCAPED POPULATIONS

    SciTech Connect (OSTI)

    Teyssier, Maureen; Johnston, Kathryn V. [Department of Astronomy, Columbia University, Pupin Physics Laboratory, 550 West 120th Street, New York, NY 10027 (United States); Shara, Michael M. [American Museum of Natural History, 79th Street and Central Park West, New York, NY 10024-5192 (United States)

    2009-12-10T23:59:59.000Z

    We demonstrate that stars beyond the virial radii of galaxies may be generated by the gravitational impulse received by a satellite as it passes through the pericenter of its orbit around its parent. These stars may become energetically unbound (escaped stars), or may travel to further than a few virial radii for longer than a few Gyr, but still remain energetically bound to the system (wandering stars). Larger satellites (10%-100% the mass of the parent), and satellites on more radial orbits are responsible for the majority of this ejected population. Wandering stars could be observable on Mpc scales via classical novae, and on 100 Mpc scales via Type Ia supernova. The existence of such stars would imply a corresponding population of barely bound, old, high-velocity stars orbiting the Milky Way, generated by the same physical mechanism during the Galaxy's formation epoch. Sizes and properties of these combined populations should place some constraints on the orbits and masses of the progenitor objects from which they came, providing insight into the merging histories of galaxies in general and the Milky Way in particular.

  1. Beryllium abundances in stars hosting giant planets

    E-Print Network [OSTI]

    N. C. Santos; R. J. Garcia Lopez; G. Israelian; M. Mayor; R. Rebolo; A. Garcia-Gil; M. R. Perez de Taoro; S. Randich

    2002-02-25T23:59:59.000Z

    We have derived beryllium abundances in a wide sample of stars hosting planets, with spectral types in the range F7V-K0V, aimed at studying in detail the effects of the presence of planets on the structure and evolution of the associated stars. Predictions from current models are compared with the derived abundances and suggestions are provided to explain the observed inconsistencies. We show that while still not clear, the results suggest that theoretical models may have to be revised for stars with Teff<5500K. On the other hand, a comparison between planet host and non-planet host stars shows no clear difference between both populations. Although preliminary, this result favors a ``primordial'' origin for the metallicity ``excess'' observed for the planetary host stars. Under this assumption, i.e. that there would be no differences between stars with and without giant planets, the light element depletion pattern of our sample of stars may also be used to further investigate and constraint Li and Be depletion mechanisms.

  2. The Evolution of Compact Binary Star Systems

    E-Print Network [OSTI]

    Konstantin Postnov; Lev Yungelson

    2014-03-21T23:59:59.000Z

    We review the formation and evolution of compact binary stars consisting of white dwarfs (WDs), neutron stars (NSs), and black holes (BHs). Mergings of compact binary stars are expected to be the most important sources for the forthcoming gravitational-wave (GW) astronomy. In the first part of the review, we discuss observational manifestations of close binary stars with NS and/or black components and their merger rate, crucial points in the formation and evolution of compact stars in binary systems, including the treatment of the natal kicks which NSs and BHs acquire during the core collapse of massive stars and the common envelope phase of binary evolution, which are most relevant to the merging rates of NS-NS, NS-BH and BH-BH binaries. The second part of the review is devoted mainly to formation and evolution of binary WDs and their observational manifestations, including their role as progenitors of cosmologically important thermonuclear SN Ia. We also consider AM CVn-stars which are thought to be the best verification binary GW sources for future low-frequency GW space interferometers.

  3. Luminous carbon stars in the Magellanic Clouds

    E-Print Network [OSTI]

    Jacco Th. van Loon; Albert A. Zijlstra; M. A. T. Groenewegen

    1999-02-19T23:59:59.000Z

    We present ground-based 3 micron spectra of obscured Asymptotic Giant Branch (AGB) stars in the Magellanic Clouds (MCs). We identify the carbon stars on the basis of the 3.1 micron absorption by HCN and C2H2 molecules. We show evidence for the existence of carbon stars up to the highest AGB luminosities (Mbol=-7 mag, for a distance modulus to the LMC of 18.7 mag). This proves that Hot Bottom Burning (HBB) cannot, in itself, prevent massive AGB stars from becoming carbon star before leaving the AGB. It also sets an upper limit to the distance modulus of the Large Magellanic Cloud of 18.8 mag. The equivalent width of the absorption band decreases with redder (K-L) colour when the dust continuum emission becomes stronger than the photospheric emission. Carbon stars with similar (K-L) appear to have equally strong 3 micron absorption in the MCs and the Milky Way. We discuss the implications for the carbon and nitrogen enrichment of the stellar photosphere of carbon stars.

  4. Comment on "Three-dimensional hydrodynamic simulations of the combustion of a neutron star into a quark star"

    E-Print Network [OSTI]

    M. I. Krivoruchenko; B. V. Martemyanov

    2015-03-04T23:59:59.000Z

    If strange matter is absolutely stable, the ordinary nuclei decay to strangelets, while neutron stars convert into strange stars. Lifetimes of the ordinary nuclei are constrained experimentally to be above $\\sim 10^{33}$ years, while lifetimes of the metastable neutron stars depend on the neutron star masses and can exceed the age of the Universe. As a consequence, the neutron stars and the strange stars can coexist in the Universe. We point out that numerical simulations of the conversion of neutron stars to strange stars, performed by M. Herzog and F. K. Roepke in Phys. Rev. D 84, 083002 (2011) [arXiv:1109.0539], are focused on a region in the parameter space of strange matter, in which low-mass neutron stars and strange stars are coexistent, whereas massive neutron stars are unstable and short lived on an astronomical timescale.

  5. Comment on "Three-dimensional hydrodynamic simulations of the combustion of a neutron star into a quark star"

    E-Print Network [OSTI]

    M. I. Krivoruchenko; B. V. Martemyanov

    2014-11-17T23:59:59.000Z

    If strange matter is absolutely stable, the ordinary nuclei decay to strangelets, while neutron stars convert into strange stars. Lifetimes of the ordinary nuclei are constrained experimentally to be above $\\sim 10^{33}$ years, while lifetimes of the metastable neutron stars depend on the neutron star masses and can exceed the age of the Universe. As a consequence, the neutron stars and the strange stars can coexist in the Universe. We point out that numerical simulations of the conversion of neutron stars to strange stars, performed by M. Herzog and F. K. Roepke in Phys. Rev. D 84, 083002 (2011) [arXiv:1109.0539], are focused on a region in the parameter space of strange matter, in which low-mass neutron stars and strange stars are coexistent, whereas massive neutron stars are unstable and short lived on an astronomical timescale.

  6. Do Si stars undergo any magnetic braking?

    E-Print Network [OSTI]

    P. North

    1998-02-23T23:59:59.000Z

    The old question of rotational braking of Ap Si stars is revisited on the empirical side, taking advantage of the recent Hipparcos results. Field stars with various evolutionary states are considered, and it is shown that the loose correlation between their rotational period and their surface gravity is entirely compatible with conservation of angular momentum. No evidence is found for any loss of angular momentum on the Main Sequence, which confirms earlier results based on less reliable estimates of surface gravity. The importance of reliable, fundamental Teff determinations of Bp and Ap stars is emphasized.

  7. Young stars and clouds in Camelopardalis

    E-Print Network [OSTI]

    V. Straizys; V. Laugalys

    2008-11-18T23:59:59.000Z

    Star formation in the Local spiral arm in the direction of the Galactic longitudes 132--158 deg is reviewed. Recent star-forming activity in this Milky Way direction is evidenced by the presence here of the Cam OB1 association and dense dust and molecular clouds containing H$\\alpha$ emission stars, young irregular variables and infrared stellar objects. The clouds of the Local arm concentrate in two layers at 150-300 pc and at about 900 pc from the Sun. The Perseus arm objects in this direction are at a distance of about 2 kpc.

  8. Convection and dynamo action in B stars

    E-Print Network [OSTI]

    Augustson, Kyle C; Toomre, Juri

    2010-01-01T23:59:59.000Z

    Main-sequence massive stars possess convective cores that likely harbor strong dynamo action. To assess the role of core convection in building magnetic fields within these stars, we employ the 3-D anelastic spherical harmonic (ASH) code to model turbulent dynamics within a 10 solar mass main-sequence (MS) B-type star rotating at 4 times the solar rate. We find that strong (900 kG) magnetic fields arise within the turbulence of the core and penetrate into the stably stratified radiative zone. These fields exhibit complex, time-dependent behavior including reversals in magnetic polarity and shifts between which hemisphere dominates the total magnetic energy.

  9. Lithium abundances in exoplanet-hosts stars

    E-Print Network [OSTI]

    M. Castro; S. Vauclair; O. Richard; N. C. Santos

    2008-03-20T23:59:59.000Z

    Exoplanet-host stars (EHS) are known to present surface chemical abundances different from those of stars without any detected planet (NEHS). EHS are, on the average, overmetallic compared to the Sun. The observations also show that, for cool stars, lithium is more depleted in EHS than in NEHS. The overmetallicity of EHS may be studied in the framework of two different scenarii. We have computed main sequence stellar models with various masses, metallicities and accretion rates. The results show different profiles for the lithium destruction according to the scenario. We compare these results to the spectroscopic observations of lithium.

  10. The evolution of very massive stars

    E-Print Network [OSTI]

    H. Belkus; J. Van Bever; D. Vanbeveren

    2007-01-11T23:59:59.000Z

    Core collapse of dense massive star clusters is unavoidable and this leads to the formation of massive objects, with a mass up to 1000 $\\msun$ and even larger. When these objects become stars, stellar wind mass loss determines their evolution and final fate, and decides upon whether they form black holes (with normal mass or with intermediate mass) or explode as a pair instability supernova. In the present paper, we discuss the evolution of very massive stars and we present a convenient evolution recipe that can be implemented in a gravitational N-body code to study the dynamics of dense massive clusters.

  11. Combustion of a neutron star into a strange quark star: the neutrino signal

    E-Print Network [OSTI]

    Pagliara, G; Ropke, F K

    2013-01-01T23:59:59.000Z

    There are strong indications that the process of conversion of a neutron star into a strange quark star proceeds as a strong deflagration implying that in a few milliseconds almost the whole star is converted. Starting from the three-dimensional hydrodynamic simulations of the combustion process which provide the temperature profiles inside the newly born strange star, we calculate for the first time the neutrino signal that is to be expected if such a conversion process takes place. The neutrino emission is characterized by a luminosity and a duration that is typical for the signal expected from protoneutron stars and represents therefore a powerful source of neutrinos which could be possibly directly detected in case of events occurring close to our galaxy. We discuss moreover possible connections between the birth of strange stars and explosive phenomena such as Supernovae and Gamma-Ray-Bursts.

  12. Combustion of a neutron star into a strange quark star: The neutrino signal

    E-Print Network [OSTI]

    G. Pagliara; M. Herzog; F. K. Roepke

    2013-05-02T23:59:59.000Z

    There are strong indications that the process of conversion of a neutron star into a strange quark star proceeds as a strong deflagration implying that in a few milliseconds almost the whole star is converted. Starting from the three-dimensional hydrodynamic simulations of the combustion process which provide the temperature profiles inside the newly born strange star, we calculate for the first time the neutrino signal that is to be expected if such a conversion process takes place. The neutrino emission is characterized by a luminosity and a duration that is typical for the signal expected from protoneutron stars and represents therefore a powerful source of neutrinos which could be possibly directly detected in case of events occurring close to our Galaxy. We discuss moreover possible connections between the birth of strange stars and explosive phenomena such as supernovae and gamma-ray-bursts.

  13. CREEL CENSUS AND EXPENDITURE STUDY, NORTH FORK SUN RIVER,

    E-Print Network [OSTI]

    CREEL CENSUS AND EXPENDITURE STUDY, NORTH FORK SUN RIVER, MONTANA, 1951 Marine Biological STUDY, NORTH FORK SUN RIVER, MONTANA, 1951 Marine Biological Laboratory JUN16 1954 WOODS HOLE, MASS MAP CREEL CENSUS SUN RIVER MONTANA DRAWN i*^ ^ TRACED- _2£jLt:l SUBMITTED . 1 V N 01 1 VN ei

  14. Dutch Wholesale Company Highway 57 North Elnora, IN 47529

    E-Print Network [OSTI]

    2011 Dutch Wholesale Company Highway 57 North · Elnora, IN 47529 TOLL FREE: (800) 472-9178 · FAX States only. J enclosed is a check payable to Dutch Wholesale Company J J please send payment with your! Thank You! Dutch Wholesale Company Highway 57 North Elnora, IN 47529 Phone: (800) 472-9178 Fax: (812

  15. HEAT STORAGE AND ADVECTION IN THE NORTH PACIFIC OCEAN

    E-Print Network [OSTI]

    Luther, Douglas S.

    HEAT STORAGE AND ADVECTION IN THE NORTH PACIFIC OCEAN A DISSERTATION SUBMITTED TO THE GRADUATE maintaining the seasonal heat storage in the 0 to 250 meter surface layer of the North Pacific Ocean storage decreases eastward and northward from a maximum in the Western Tropical Pacific to a minimum

  16. A decade of acoustic thermometry in the North Pacific Ocean

    E-Print Network [OSTI]

    Frandsen, Jannette B.

    A decade of acoustic thermometry in the North Pacific Ocean B. D. Dushaw,1 P. F. Worcester,2 W. H of acoustic thermometry in the North Pacific Ocean, J. Geophys. Res., 114, C07021, doi:10.1029/2008JC005124. 1 of basin-scale heat content in the northeast Pacific Ocean were made using a broadband 133-Hz source

  17. Mode coherence at megameter ranges in the North Pacific Ocean

    E-Print Network [OSTI]

    Wage, Kathleen

    Mode coherence at megameter ranges in the North Pacific Ocean Kathleen E. Wage, Matthew A and the Acoustical Society of America. #12;Mode coherence at megameter ranges in the North Pacific Ocean Kathleen E Thermometry of Ocean Climate ATOC and Alternate Source Test AST experiments. Vertical line arrays at Hawaii

  18. NorthWestern Energy Community Works Scholarship for Electrical Engineering

    E-Print Network [OSTI]

    Dyer, Bill

    20131030 NorthWestern Energy Community Works Scholarship for Electrical Engineering A special Electrical Engineering, NorthWestern Energy has established a scholarship program administered by the Montana and interests, and how they relate to electrical engineering, energy production, control, and/or transmission

  19. NorthWestern Energy Community Works Scholarship for Electrical Engineering

    E-Print Network [OSTI]

    Lawrence, Rick L.

    20121204 NorthWestern Energy Community Works Scholarship for Electrical Engineering A special new Electrical Engineering, NorthWestern Energy has established a scholarship program administered by the Montana, and how they relate to electrical engineering, energy production, control, and/or transmission. Within

  20. Water Resources Research Institute of the University of North Carolina

    E-Print Network [OSTI]

    Water Resources Research Institute of the University of North Carolina Annual Technical Report FY 2000 Introduction SUMMARY The North Carolina Water Resources Research Institute program for 2000-2001 (Federal Fiscal Year 2000) continued to focus on three broad areas of concern: surface waters, groundwater

  1. NC STATE UNIVERSITY College of Engineering North Carolina Solar Center

    E-Print Network [OSTI]

    NC STATE UNIVERSITY College of Engineering North Carolina Solar Center Room 210, McKimmon Center been awarded by the North Carolina Solar Center at NC State University through the Clean Fuel Advanced by the N.C. Department of Transportation, State Energy Office, and Division of Air Quality

  2. THE NORTH FARM AT UPREC 2015 APPRENTICE FARMER PROGRAM

    E-Print Network [OSTI]

    Isaacs, Rufus

    ANNOUNCING THE NORTH FARM AT UPREC 2015 APPRENTICE FARMER PROGRAM APPRENTICE FARMERS WILL RECEIVE for three new Apprentice farmers. This incubator program is designed to support new farmers launch Peninsula, and the North Farm will assist Apprentice Farmers in developing their markets. This program

  3. Single nucleotide polymorphism discovery in elite north american potato germplasm

    E-Print Network [OSTI]

    Douches, David S.

    Single nucleotide polymorphism discovery in elite north american potato germplasm Hamilton et al;RESEARCH ARTICLE Open Access Single nucleotide polymorphism discovery in elite north american potato- making. Results: To identify a large number of Single Nucleotide Polymorphisms (SNPs) in elite potato

  4. Resolving the Dusty Circumstellar Structure of the Enigmatic Symbiotic Star CH Cygni with the MMT Adaptive Optics System

    E-Print Network [OSTI]

    Beth A. Biller; Laird M. Close; Aigen Li; Massimo Marengo; John H. Bieging; Phil M. Hinz; William F. Hoffmann; Guido Brusa; Doug Miller

    2006-04-14T23:59:59.000Z

    We imaged the symbiotic star CH Cyg and two PSF calibration stars using the unique 6.5m MMT deformable secondary adaptive optics system. Our high-resolution (FWHM=0.3"), very high Strehl (98%+-2%) mid-infrared (9.8 and 11.7 um) images of CH Cyg allow us to probe finer length scales than ever before for this object. CH Cyg is significantly extended compared to our unresolved PSF calibration stars (Mu UMa and Alpha Her) at 9.8 and 11.7 um. We estimated the size of the extension by convolving a number of simple Gaussian models with the Mu UMa PSF and determining which model provided the best fit to the data. Adopting the Hipparcos distance for this object of 270 pc, we found a nearly Gaussian extension with a FWHM at 9.8 um of ~40.5+-2.7 AU (0.15+-0.01") and a FWHM at 11.7 um of 45.9+-2.7 AU (0.17+-0.01"). After subtracting out the Gaussian component of the emission (convolved with our PSF), we found a faint \\~0.7" asymmetric extension which peaks in flux ~0.5" north of the stars. This extension is roughly coincident with the northern knotlike feature seen in HST WFPC2 images obtained in 1999.

  5. Blue Straggler Stars in Galactic Open Clusters and the effect of field star contamination

    E-Print Network [OSTI]

    G. Carraro; R. A. Vazquez; A. Moitinho

    2008-02-25T23:59:59.000Z

    We investigate the distribution of Blue Straggler stars in the field of three open star clusters. The main purpose is to highlight the crucial role played by general Galactic disk fore-/back-ground field stars, which are often located in the same region of the Color Magnitude Diagram as Blue Straggler stars. We analyze photometry taken from the literature of 3 open clusters of intermediate/old age rich in Blue Straggler stars, and which are projected in the direction of the Perseus arm, and study their spatial distribution and the Color Magnitude Diagram. As expected, we find that a large portion of the Blue Straggler population in these clusters are simply young field stars belonging to the spiral arm. This result has important consequences on the theories of the formation and statistics of Blue Straggler stars in different population environments: open clusters, globular clusters or dwarf galaxies. As previously emphasized by many authors, a detailed membership analysis is mandatory before comparing the Blue Straggler population in star clusters against theoretical models. Moreover, these sequences of young field stars (blue plumes) are potentially powerful tracers of Galactic structure which require further consideration.

  6. A POLYHEDRAL INVESTIGATION OF STAR COLORINGS 1 ...

    E-Print Network [OSTI]

    2015-01-13T23:59:59.000Z

    We consider a positive integer k and the corresponding polytope P? k(G), which is the convex ... Moreover, Lyons [26] investigates classes of graphs for which the star chromatic number .... Taking the partitioning in Figure 1(b), however, we.

  7. Folk Song 2, Sun, Moon, and Star

    E-Print Network [OSTI]

    Sgrol dkar skyid

    ?????????????????????????????????? ???????????? Tape No. / Track / Item No. Sitaigou Tibetan Folk Song 2.WAV Length of track 00:02:40 Related tracks (include description/relationship if appropriate) Title of track Sun?Moon, and Star ???????? ???????????? Translation of title...

  8. Identifying seasonal stars in Kaurna astronomical traditions

    E-Print Network [OSTI]

    Hamacher, Duane W

    2015-01-01T23:59:59.000Z

    Early ethnographers and missionaries recorded Aboriginal languages and oral traditions across Australia. Their general lack of astronomical training resulted in misidentifications, transcription errors, and omissions in these records. Additionally, many of these early records are fragmented. In western Victoria and southeast South Australia, many astronomical traditions were recorded, but curiously, some of the brightest stars in the sky were omitted. Scholars claimed these stars did not feature in Aboriginal traditions. This under-representation continues to be repeated in the literature, but current research shows that some of these stars may in fact feature in Aboriginal traditions and could be seasonal calendar markers. This paper uses established techniques in cultural astronomy to identify seasonal stars in the traditions of the Kaurna Aboriginal people of the Adelaide Plains, South Australia.

  9. Whirlpool: ENERGY STAR Referral (ASD2524VE)

    Broader source: Energy.gov [DOE]

    DOE referred the matter of Whirlpool's Amana-brand dishwasher model ASD2524VE to the EPA for appropriate action after DOE testing showed that the model does not meet the ENERGY STAR specification.

  10. ENERGY STAR® Solid-State Lighting Workshop

    Broader source: Energy.gov [DOE]

    Workshop Purpose: To prepare manufacturers for the launch of the ENERGY STAR SSL program in late September by sharing information on the state of the SSL market, status of relevant test procedures,...

  11. Binary star systems and extrasolar planets

    E-Print Network [OSTI]

    Muterspaugh, Matthew Ward

    2005-01-01T23:59:59.000Z

    For ten years, planets around stars similar to the Sun have been discovered, confirmed, and their properties studied. Planets have been found in a variety of environments previously thought impossible. The results have ...

  12. The Maximum Mass of a Neutron Star

    E-Print Network [OSTI]

    Vassiliki Kalogera; Gordon Baym

    1996-08-11T23:59:59.000Z

    Observational identification of black holes as members of binary systems requires the knowledge of the upper limit on the gravitational mass of a neutron star. We use modern equations of state for neutron star matter, fitted to experimental nucleon-nucleon scattering data and the properties of light nuclei, to calculate, within the framework of Rhoades & Ruffini (1974), the minimum upper limit on a neutron star mass. Regarding the equation of state as valid up to twice nuclear matter saturation density, rho_{nm}, we obtain a secure upper bound on the neutron star mass equal to 2.9 solar masses. We also find that in order to reach the lowest possible upper bound of 2.2 solar masses, we need understand the physical properties of neutron matter up to a density of about 4 times rho_{nm}.

  13. EPA ENERGY STAR Webcast- Portfolio Manager 201

    Office of Energy Efficiency and Renewable Energy (EERE)

    Continue to learn about EPA’s new ENERGY STAR Portfolio Manager tool, with a deeper dive into more advanced functionalities such as: managing and tracking changes to your property uses over time;...

  14. EPA ENERGY STAR Webcast- Portfolio Manager 101

    Office of Energy Efficiency and Renewable Energy (EERE)

    Join us as we introduce and demonstrate the core functionality of EPA’s new ENERGY STAR Portfolio Manager tool. Attendees will learn how to: navigate the new Portfolio Manager; add a property and...

  15. ENERGY STAR Webinar: Portfolio Manager 101

    Office of Energy Efficiency and Renewable Energy (EERE)

    Join us as we introduce and demonstrate the core functionality of EPA’s new ENERGY STAR Portfolio Manager tool. Attendees will learn how to: navigate the new Portfolio Manager; add a property and...

  16. Axion Stars and Fast Radio Bursts

    E-Print Network [OSTI]

    A. Iwazaki

    2014-10-23T23:59:59.000Z

    We show that fast radio bursts arise from collisions between axion stars and neutron stars. The bursts are emitted in the atmosphere of the neutron stars. The observed frequencies of the bursts are given by the axion mass $m_a$ such as $m_a/2\\pi\\simeq 1.4\\,\\mbox{GHz}\\,\\big(m_a/(6\\times 10^{-6}\\mbox{eV})\\big)$. From the event rate $\\sim 10^{-3}$ per year in a galaxy, we can determine the mass $\\sim 10^{-11}M_{\\odot}$ of the axion stars. Using these values we can explain short durations ( $\\sim $ms ) and amount of radiation energies ( $\\sim 10^{43}$GeV ) of the bursts.

  17. Jennifer Granholm (Energy All Stars Presentation)

    Broader source: Energy.gov [DOE]

    Former Michigan Governor Jennifer Granholm delivered this presentation advocating for an energy Race to the Top competition between the states at the Energy All Stars event on January 19, 2013, at...

  18. Probing axions with radiation from magnetic stars

    SciTech Connect (OSTI)

    Lai Dong; Heyl, Jeremy [Center for Radiophysics and Space Research, Department of Astronomy, Cornell University, Ithaca, New York 14853 (United States); Department of Physics and Astronomy, University of British Columbia, Vancouver, British Columbia, V6T 1Z1 (Canada)

    2006-12-15T23:59:59.000Z

    Recent experiments suggest that polarized photons may couple significantly to pseudoscalar particles such as axions. We study the possible observational signatures of axion-photon coupling for radiation from magnetic stars, with particular focus on neutron stars. We present general methods for calculating the axion-photon conversion probability during propagation through a varying magnetized vacuum as well as across an inhomogeneous atmosphere. Partial axion-photon conversion may take place in the vacuum region outside the neutron star. Strong axion-photon mixing occurs due to a resonance in the atmosphere and, depending on the axion coupling strength and other parameters, significant axion-photon conversion can take place at the resonance. Such conversions may produce observable effects on the radiation spectra and polarization signals from the star. We also apply our results to axion-photon propagation in the Sun and in magnetic white dwarfs. We find that there is no appreciable conversion of solar axions to photons during the propagation.

  19. Electron stars for holographic metallic criticality

    SciTech Connect (OSTI)

    Hartnoll, Sean A.; Tavanfar, Alireza [Center for the Fundamental Laws of Nature, Harvard University, Cambridge, Massachusetts 02138 (United States)

    2011-02-15T23:59:59.000Z

    We refer to the ground state of a gravitating, charged ideal fluid of fermions held at a finite chemical potential as an ''electron star.'' In a holographic setting, electron stars are candidate gravity duals for strongly interacting finite fermion density systems. We show how electron stars develop an emergent Lifshitz scaling at low energies. This IR scaling region is a consequence of the two-way interaction between emergent quantum critical bosonic modes and the finite density of fermions. By integrating from the IR region to an asymptotically AdS{sub 4} spacetime, we compute basic properties of the electron stars, including their electrical conductivity. We emphasize the challenge of connecting UV and IR physics in strongly interacting finite density systems.

  20. Entropy & viscosity bound of strange stars

    E-Print Network [OSTI]

    Sibasish Laha; Taparati Gangopadhyay; Manjari Bagchi; Mira Dey; Jishnu Dey; Monika Sinha; Subharthi Ray

    2007-02-08T23:59:59.000Z

    At finite temperature (T) there is a link with general relativity and hydrodynamics that leads to a lower bound for the ratio of shear viscosity and entropy density (\\eta/s). We find that the bound is saturated in the simple model for quark matter that we use for strange stars at T = 80 MeV, at the surface of a strange star. At this T we have the possibility of cosmic separation of phases. We find that, although strongly correlated, the quark matter at the surface of strange stars constitute the most perfect interacting fluid permitted by nature. At the centre of the star, however, the density is higher and conditions are more like the results found for perturbative QCD.

  1. Home Performance with Energy Star Program

    Broader source: Energy.gov [DOE]

    The New Jersey Board of Public Utilities (NJ BPU) offers a Home Performance with Energy Star Program for residents that want to improve the energy efficiency of their homes. The program is set up...

  2. Simulations Reveal Unusual Death for Ancient Stars

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

    these objects-among the Universe's first-generation of stars-would have exploded as supernovae and burned completely, leaving no remnant black hole behind. Astrophysicists at the...

  3. Electron stars for holographic metallic criticality

    E-Print Network [OSTI]

    Sean A. Hartnoll; Alireza Tavanfar

    2011-01-06T23:59:59.000Z

    We refer to the ground state of a gravitating, charged ideal fluid of fermions held at a finite chemical potential as an `electron star'. In a holographic setting, electron stars are candidate gravity duals for strongly interacting finite fermion density systems. We show how electron stars develop an emergent Lifshitz scaling at low energies. This IR scaling region is a consequence of the two way interaction between emergent quantum critical bosonic modes and the finite density of fermions. By integrating from the IR region to an asymptotically AdS_4 spacetime, we compute basic properties of the electron stars, including their electrical conductivity. We emphasize the challenge of connecting UV and IR physics in strongly interacting finite density systems.

  4. Relativistic harmonic oscillator model for quark stars

    E-Print Network [OSTI]

    Vishnu M. Bannur

    2008-10-06T23:59:59.000Z

    The relativistic harmonic oscillator (RHO) model of hadrons is used to study quark stars. The mass-radius relationship is obtained and compared with bag model of quark star, using Tolman-Oppenheimer-Volkoff equation. In this model, the outward degenerate pressure due to discrete Landau levels and Landau degeneracy balances the inward gravitational pressure. Where as in bag model the degenerate pressure is due to the standard continuum levels which balances the combined inward pressure due to gravitation and bag pressure. So in RHO model, the confinement effect is included in the degenerate pressure. We found a qualitative similarity, but quantitative differences in mass-radius relationship of quark stars in these two models. Masses and radii are relatively larger and the central energy densities, required for stable quark stars, are lower in RHO model than that of bag model.

  5. Samsung: ENERGY STAR Referral (RF26VAB)

    Broader source: Energy.gov [DOE]

    DOE referred the matter of Samsung refrigerator-freezer model RF26VAB to the EPA for appropriate action after DOE testing showed that the model does not meet the ENERGY STAR specification.

  6. Cylindrically Symmetric Models of Anisotropic Compact Stars

    E-Print Network [OSTI]

    G. Abbas; Sumara Nazeer; M. A. Meraj

    2014-12-16T23:59:59.000Z

    In this paper we have discussed the possibility of forming anisotropic compact stars from cosmological constant as one of the competent candidates of dark energy with cylindrical symmetry. For this purpose, we have applied the analytical solution of Krori and Barua metric to a particular cylindrically symmetric spacetime. The unknown constants in Krori and Barua metric have been determined by using masses and radii of class of compact stars like 4$U$1820-30, Her X-1, SAX J 1808-3658. The properties of these stars have been analyzed in detail. In this setting the cosmological constant has been taken as a variable which depends on the radial coordinates. We have checked all the regularity conditions, stability and surface redshift of the compact stars 4$U$1820-30, Her X-1, SAX J 1808-3658.

  7. Pulsational models of BL Her stars

    E-Print Network [OSTI]

    M. Di Criscienzo; M. Marconi; F. Caputo; S. Cassisi

    2007-12-05T23:59:59.000Z

    We present an updated and homogeneous pulsational scenario for a wide range of stellar parameters typical of BL Her stars i.e., Population II Cepheids with periods shorter than 8 days.

  8. 2005 the North American Solar Challenge

    SciTech Connect (OSTI)

    Dan Eberle

    2008-12-22T23:59:59.000Z

    In July 2005 the North American Solar Challenge (NASC) featured university built solar powered cars ran across the United States into Canada. The competition began in Austin, Texas with stops in Weatherford, Texas; Broken Arrow, Oklahoma; Topeka, Kansas; Omaha, Nebraska; Sioux Falls, South Dakota, Fargo, North Dakota; Winnipeg, Manitoba; Brandon, Manitoba; Regina, Saskatchewan; Medicine Hat, Alberta; mainly following U.S. Highway 75 and Canadian Highway 1 to the finish line in Calgary, Alberta, Canada, for a total distance of 2,500 miles. NASC major sponsors include the U.S. Department of Energy (DOE), Natural Resources Canada and DOEs National Renewable Energy Laboratory. The event is designed to inspire young people to pursue careers in science and engineering. NASCs predecessors, the American Solar Challenge and Sunrayce, generally have been held every two years since 1990. With each race, the solar cars travel faster and further with greater reliability. The NASC promotes: -Renewable energy technologies (specifically photovoltaic or solar cells) -Educational excellence in science, engineering and mathematics -Creative integration of technical and scientific expertise across a wide-range of disciplines -Hands-on experience for students and engineers to develop and demonstrate their technical and creative abilities. Safety is the first priority for the NASC. Each team put its car through grueling qualifying and technical inspections. Teams that failed to meet the requirements were not allowed participate. During the race, each team was escorted by lead and chase vehicles sporting rooftop hazard flashers. An official observer accompanied each solar car team to keep it alert to any safety issues.

  9. 1992 North Dakota Economic Impact Study for the Uranium Mill Tailings Remedial Action Project, Belfield and Bowman, North Dakota

    SciTech Connect (OSTI)

    Not Available

    1993-01-01T23:59:59.000Z

    The goal of the Uranium Mill Tailings Remedial Action (UMTRA) Project in North Dakota is to improve the environment and reduce the negative health effects associated with residual radioactive material (RRM) from the inactive processing sites at Belfield and Bowman, North Dakota. A secondary benefit of the UMTRA Project is economic gain. The 1992 North Dakota Economic Impact Study (NDEIS) analyzes the impact of the remedial actions at the inactive Belfield and Bowman processing sites and their associated vicinity properties. This analysis is based on the assumption that the state of North Dakota will provide 10 percent of the funding required for remediation. For every dollar the state of North Dakota invests in the Belfield and Bowman onsite portion of the UMTRA Project, it will realize $5.04 in gross labor income (i.e., gross labor income divided by the state's total funding requirement). For every dollar the state of North Dakota invests, it will realize a net return of $3.04 (i.e., net benefit divided by the state's total funding requirement). This reflects only labor expenditure and employment impact. ff state and local non-labor tax benefits were considered in the net economic benefit, North Dakota could receive significantly more than $3.04 for each dollar it invests. The UMTRA Project work at Belfield and Bowman will benefit the state of North Dakota. Benefits include a reduction in the negative health effects caused by low-level RRM, an improvement in the environment, and increased economic growth.

  10. Noncommutative Gauge Theory with Covariant Star Product

    SciTech Connect (OSTI)

    Zet, G. [Physics Department, 'Gh. Asachi' Technical University, 700050 Iasi (Romania)

    2010-08-04T23:59:59.000Z

    We present a noncommutative gauge theory with covariant star product on a space-time with torsion. In order to obtain the covariant star product one imposes some restrictions on the connection of the space-time. Then, a noncommutative gauge theory is developed applying this product to the case of differential forms. Some comments on the advantages of using a space-time with torsion to describe the gravitational field are also given.

  11. Top 10 Problems on Massive Stars

    E-Print Network [OSTI]

    Cassio Barbosa; Donald Figer

    2005-10-18T23:59:59.000Z

    We have asked a number of researchers to compile their lists of the top 10 problems in the field of massive stars. This paper is a compilation of these lists. We attempted to survey observers and theorists and those studying all evolutionary stages in the lives of massive stars. Each list reflects the proposer's personal point of view, but hopefully, this compilation will motivate new young astronomers and begin a new series of discussion.

  12. STAR FORMATION IN TWO LUMINOUS SPIRAL GALAXIES

    SciTech Connect (OSTI)

    Hunter, Deidre A.; Ashburn, Allison; Wright, Teresa [Lowell Observatory, 1400 West Mars Hill Road, Flagstaff, AZ 86001 (United States); Elmegreen, Bruce G. [IBM T. J. Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598 (United States); Rubin, Vera C. [Carnegie Institution of Washington, 5241 Broad Branch Road NW, Washington, DC 20015 (United States); Józsa, Gyula I. G.; Struve, Christian [ASTRON (Netherlands Organisation for Scientific Research NWO), Oude Hoogeveensedijk 4, 7991-PD Dwingeloo (Netherlands)

    2013-10-01T23:59:59.000Z

    We examined star formation in two very luminous (M{sub V} = –22 to –23) Sc-type spiral galaxies, NGC 801 and UGC 2885, using ultra-deep H? images. We combine these H? images with UBV and Two-Micron All-Sky Survey JHK images and H I maps to explore the star formation characteristics of disk galaxies at high luminosity. H? traces star formation in these galaxies to 4-6 disk scale lengths, but the lack of detection of H? further out is likely due to the loss of Lyman continuum photons. Considering gravitational instabilities alone, we find that the gas and stars in the outer regions are marginally stable in an average sense, but considering dissipative gas and radial and azimuthal forcing, the outer regions are marginally unstable to forming spiral arms. Star formation is taking place in spiral arms, which are regions of locally higher gas densities. Furthermore, we have traced smooth exponential stellar disks over four magnitudes in V-band surface brightness and 4-6 disk scale lengths, in spite of a highly variable gravitational instability parameter. Thus, gravitational instability thresholds do not seem relevant to the stellar disk. One possibility for creating an exponential disk is that the molecular cloud densities and star formation rates have exponential profiles and this fact forces the stellar disk to build up such a profile. Another possibility is that the stellar disk is continuously adjusted to an exponential shape regardless of the star formation profile, for example, through global dynamical processes that scatter stars. However, such scattering processes are only known to operate in spiral systems, in which case they cannot explain the same dilemma of smooth exponential disks observed in dwarf irregular galaxies.

  13. On surface tension for compact stars

    E-Print Network [OSTI]

    R. Sharma; S. D. Maharaj

    2007-08-24T23:59:59.000Z

    In an earlier treatment it was demonstrated that general relativity gives higher values of surface tension in strange stars with quark matter than neutron stars.We generate the modified Tolman-Oppenheimer-Volkoff equation to incorporate anisotropic matter and use this to show that pressure anisotropy provides for a wide range of behaviour in the surface tension than is the case with isotropic pressures. In particular it is possible that anisotropy drastically decreases the value of the surface tension.

  14. Isotopic Anomalies in CP Stars: Helium, Mercury, Platinum, and Calcium

    E-Print Network [OSTI]

    C. R. Cowley; S. Hubrig; F. Castelli

    2007-11-15T23:59:59.000Z

    We review the classical observational results for isotopic abundance variations for several elements in CP stars. We concentrate on the "newest" anomaly, in calcium. The cosmically very rare isotope, Ca-48 can rival and even dominate the more common, alpha nuclide, Ca-40. Relevant examples are found in the hot, non-magnetic HgMn stars, and the field horizontal-branch star, Feige 86. The calcium anomaly is also present in cool, magnetic stars, including the notorious HD 101065, Przybylski's star.

  15. Neutron star in presence of torsion-dilaton field

    E-Print Network [OSTI]

    T. Boyadjiev; P. Fiziev; S. Yazadjiev

    1999-07-22T23:59:59.000Z

    We develop the general theory of stars in Saa's model of gravity with propagating torsion and study the basic stationary state of neutron star. Our numerical results show that the torsion force decreases the role of the gravity in the star configuration leading to significant changes in the neutron star masses depending on the equation of state of star matter. The inconsistency of the Saa's model with Roll-Krotkov-Dicke and Braginsky-Panov experiments is discussed.

  16. Magnetic braking of T Tauri stars

    E-Print Network [OSTI]

    P. J. Armitage; C. J. Clarke

    1995-12-05T23:59:59.000Z

    We construct models for the rotation rates of T Tauri stars whose spin is regulated by magnetic linkage between the star and a surrounding accretion disc. Our models utilise a time-dependent disc code to follow the accretion process and include the effects of pre-main-sequence stellar evolution. We find that the initial disc mass controls the evolution of the star-disc system. For sufficiently massive discs, a stellar field of $\\sim$ 1 kG is able to regulate the spin rate to the observed values during the classical T Tauri phase. The field then acts to expel the disc and the star spins up at constant angular momentum as a weak-line system. Lower mass discs are ejected at an early epoch and fail to brake the star significantly. We extend the model to close binary systems, and find that the removal of angular momentum from the disc by the secondary significantly prolongs the inner disc lifetime. Such systems should therefore be relatively slow rotators. We also discuss the implications of our model for the spectral energy distributions and variability of T Tauri stars.

  17. r-Process Enhanced Halo Stars

    E-Print Network [OSTI]

    J. J. Cowan; C. Sneden; J. E. Lawler; E. A. Den Hartog

    2006-10-13T23:59:59.000Z

    Abundance observations indicate the presence of rapid-neutron capture (i.e., r-process) elements in old Galactic halo and globular cluster stars. These observations provide insight into the nature of the earliest generations of stars in the Galaxy -- the progenitors of the halo stars -- responsible for neutron-capture synthesis of the heavy elements. The large star-to-star scatter observed in the abundances of neutron-capture element/iron ratios at low metallicities -- which diminishes with increasing metallicity or [Fe/H] -- suggests the formation of these heavy elements (presumably from certain types of supernovae) was rare in the early Galaxy. The stellar abundances also indicate a change from the r-process to the slow neutron capture (i.e., s-) process at higher metallicities in the Galaxy and provide insight into Galactic chemical evolution. Finally, the detection of thorium and uranium in halo and globular cluster stars offers an independent age-dating technique that can put lower limits on the age of the Galaxy, and hence the Universe.

  18. The properties of planets around giant stars

    E-Print Network [OSTI]

    Jones, M I; Bluhm, P; Rojo, P; Melo, C H F

    2014-01-01T23:59:59.000Z

    Context: More than 50 exoplanets have been found around giant stars, revealing different properties when compared to planets orbiting solar-type stars. In particular, they are Super-Jupiters and are not found orbiting interior to $\\sim$ 0.5 AU. Aims: We are conducting a radial velocity study of a sample of 166 giant stars aimed at studying the population of close-in planets orbiting giant stars and how their orbital and physical properties are influenced by the post-MS evolution of the host star. Methods: We have collected multi epochs spectra for all of the targets in our sample. We have computed precision radial velocities from FECH/CHIRON and FEROS spectra, using the I$_2$ cell technique and the simultaneous calibration method, respectively. Results: We present the discovery of a massive planet around the giant star HIP105854. The best Keplerian fit to the data leads to an orbital distance of 0.81 $\\pm$ 0.03 AU, an eccentricity of 0.02 $\\pm$ 0.03 and a projected mass of 8.2 $\\pm$ 0.2 \\mjup. With the additi...

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

    E-Print Network [OSTI]

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

    2007-01-01T23:59:59.000Z

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

  20. North Pacific carbon cycle response to climate variability on seasonal to decadal timescales

    E-Print Network [OSTI]

    2006-01-01T23:59:59.000Z

    in the subarctic North Pacific Ocean, Global Biogeochem.of the tropical Pacific Ocean: I. Seasonal and interannualthe subtropical North Pacific Ocean, Nature, 424, 754 – 757.

  1. FACTORS DETERMINING RESIDENTIAL WATER DEMAND IN NORTH WESTERN ETHIOPIA, THE CASE OF MERAWI

    E-Print Network [OSTI]

    Walter, M.Todd

    FACTORS DETERMINING RESIDENTIAL WATER DEMAND IN NORTH WESTERN ETHIOPIA, THE CASE OF MERAWI among different households of the town of Merawi, North Western Ethiopia. Understanding variables

  2. Lessons and Experiences from a Stream Restoration Project in the Piedmont of North Carolina

    E-Print Network [OSTI]

    Barrett, Thomas; Hajnos, Edward

    2007-01-01T23:59:59.000Z

    report documenting stream restoration and enhancement isInc. is participating in a stream restoration study with theof North Carolina. Stream restoration in North Carolina is

  3. Experimental approach to neutron stars

    SciTech Connect (OSTI)

    Leifels, Yvonne [GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt (Germany)

    2014-05-09T23:59:59.000Z

    The equation of state (EOS) of nuclear matter is of fundamental importance in many areas of nuclear physics and astrophysics In the laboratory, there are different means to study the nuclearmatter equation of state and its density dependence in particular: nuclear masses, neutron skins, pygmy resonance, and nuclear structure at the drip line give access to nuclear matter properties at densities lower than and at saturation density ?0. Heavy ion reactions at energies above 0.1 AGeV are the only means to study nuclear matter at densities larger than normal nuclear matter density ?0. In the beamenergy range of 0.1 to 2A GeV nuclear matter is compressed upto three times ?0. Access to nuclear matter properties is achieved by simulating nuclear collisions by means of microscopic transport codes, or statistical or hydrodynamicalmodels. Characteristics of heavy-ion collisions are discussed, and experimental observables which allow to constrain nuclear matter properties by comparing experimental results with those of transport codes are presented. Special emphasis will be given to the density dependence of the symmetry energy which is the most relevant connection between neutron stars and heavy ion collisions.

  4. University of Alaska Fairbanks Summer Sessions Syllabus and Course Outline

    E-Print Network [OSTI]

    Sikes, Derek S.

    (a non-credit workshop) Course Title: Fly Fishing Weekend Pre-requisites: None Location: Room 344 of Alaskan fly fishing. Fly fishing is both a meditative and a scientific pursuit. From the end of a line effects on fish habitat, angling tactics and fly fishing techniques. Course Objective(s): Students

  5. UNIVERSITY OF ALASKA FAIRBANKS April 2012 Chancellor's Report

    E-Print Network [OSTI]

    Ickert-Bond, Steffi

    -voltage switches, and replace a section of the cam- pus main sewer line as part of a multiphase replacement project in Edinburgh, Scotland, lets users model oil reservoirs, wells and pipeline networks. In Progress Marketing and Communications, contracting with the Nerland Agency, has completed the research phase of a branding project

  6. Designing for Energy Conservation - The Cypress Fairbanks Medical Center Hospital

    E-Print Network [OSTI]

    Wiernik, L. B.; Ranzau, P. A.

    1984-01-01T23:59:59.000Z

    ,000 'quare foot is heat gain. The longest dbeneions of the Cypress cmprised Of three 40-bed medical'sur&ical In-patient Medical Center are oriented northwest and southeast. care nureing floors, and the first floor which houses All of the external windows... are 1/4" solar bronze administrative, business, dienostic, treatment and and internally ehded by 3" wide vertical blinds. ancillary services. The hospital is adjoined by a First floor windows are ehaded by a -$-foot overhang. 40,000 square foot med...

  7. Flow Test At Blue Mountain Geothermal Area (Fairbank Engineering...

    Open Energy Info (EERE)

    Activity Details Location Blue Mountain Geothermal Area Exploration Technique Flow Test Activity Date 2002 - 2002 Usefulness not useful DOE-funding Unknown Exploration Basis...

  8. Self Potential At Blue Mountain Geothermal Area (Fairbank Engineering Ltd,

    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 Ltd JumpInformationScotts Corners, NewSeegerSelden, NewVC-2A,

  9. Slim Holes At Blue Mountain Geothermal Area (Fairbank Engineering Ltd,

    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, New York:SiG SolarSkykomish,New York: Energy Resources2003) |

  10. Fairbanks Ranch, California: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model,DOEHazelPennsylvania: EnergyExolis EnergyRanch, California: Energy Resources Jump

  11. Field Mapping At Blue Mountain Geothermal Area (Fairbank Engineering Ltd,

    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 JumpConceptual Model,DOEHazelPennsylvania:57427°,Ferry County, Washington:Energy Information2003)

  12. Aerial Photography At Blue Mountain Geothermal Area (Fairbank Engineering

    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:Ezfeedflag JumpID-fTriWildcat 1AMEE Jump to:Ohio:Ads-tecInformationAecomLtd, 2003) | Open

  13. Aeromagnetic Survey At Blue Mountain Geothermal Area (Fairbank Engineering

    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:Ezfeedflag JumpID-fTriWildcat 1AMEE JumpAeroWind Inc. Place: Potsdam, NewOcean | Open

  14. Ground Gravity Survey At Blue Mountain Geothermal Area (Fairbank

    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 ContractingGreenOrderNebraska:Gridley,Grocery 2009(Redirected1978)

  15. National Strategy for the Arctic Tribal Consultation Session: Fairbanks |

    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 2015of 2005 attheMohammed Khan -Department of EnergyInMay

  16. Static Temperature Survey At Blue Mountain Geothermal Area (Fairbank

    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,SoutheastSt. Francis(RedirectedStarr County,and5EnergyCull,

  17. Dipole-Dipole Resistivity At Blue Mountain Geothermal Area (Fairbank

    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 JumpConceptual Model,DOE FacilityDimondale, Michigan: Energy Resources Jump to:

  18. Direct-Current Resistivity Survey At Blue Mountain Area (Fairbank

    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 JumpConceptual Model,DOE FacilityDimondale, Michigan: Energy Resources Jump(Thomas, 1986) |

  19. Thermal Gradient Holes At Blue Mountain Geothermal Area (Fairbank &

    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 PvtStratosolarTharaldson Ethanol LLC JumpWoodlands,EnergyHot-Dry-Rock

  20. Albany, OR * Fairbanks, AK * Morgantown, WV * Pittsburgh, PA * Houston, TX

    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 Office511041cloth DocumentationProducts (VAP) VAP7-0973Managed byInexpensiveNETL R&D Tackles Technological

  1. Reflection Survey At Blue Mountain Geothermal Area (Fairbank Engineering

    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 Ltd Jump to: navigation, searchRayreview ofOzkocak, 1985) Exploration

  2. City of Fairbank, Iowa (Utility Company) | Open Energy Information

    Open Energy Info (EERE)

    AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page onYou are now leaving Energy.gov You are now leaving Energy.gov You are beingZealand JumpConceptual Model, click here.TelluricPowerCity ofInformation City ofCity ofCityCityCity ofCity

  3. Reference Buildings by Climate Zone and Representative City: 8 Fairbanks,

    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'tOrigin of ContaminationHubs+18,new2004_v1.3_5.0.zipFlorida |Albuquerque,Montana |MinnesotaAlaska

  4. Reference Buildings by Climate Zone and Representative City: 8 Fairbanks,

    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'tOrigin of ContaminationHubs+18,new2004_v1.3_5.0.zipFlorida |Albuquerque,Montana

  5. Reference Buildings by Climate Zone and Representative City: 8 Fairbanks,

    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'tOrigin of ContaminationHubs+18,new2004_v1.3_5.0.zipFlorida |Albuquerque,MontanaAlaska |

  6. Massive stars on the verge of exploding: the properties of oxygen sequence Wolf-Rayet stars

    E-Print Network [OSTI]

    Tramper, F; Sanyal, D; Sana, H; de Koter, A; Gräfener, G; Langer, N; Vink, J S; de Mink, S E; Kaper, L

    2015-01-01T23:59:59.000Z

    Context. Oxygen sequence Wolf-Rayet (WO) stars represent a very rare stage in the evolution of massive stars. Their spectra show strong emission lines of helium-burning products, in particular highly ionized carbon and oxygen. The properties of WO stars can be used to provide unique constraints on the (post-)helium burning evolution of massive stars, as well as their remaining lifetime and the expected properties of their supernovae. Aims. We aim to homogeneously analyse the currently known presumed-single WO stars to obtain the key stellar and outflow properties and to constrain their evolutionary state. Methods. We use the line-blanketed non-local thermal equilibrium atmosphere code cmfgen to model the X-Shooter spectra of the WO stars and deduce the atmospheric parameters. We calculate dedicated evolutionary models to determine the evolutionary state of the stars. Results. The WO stars have extremely high temperatures that range from 150 kK to 210 kK, and very low surface helium mass fractions that range f...

  7. EPA ENERGY STAR Webinar: How to Apply for the ENERGY STAR

    Broader source: Energy.gov [DOE]

    The U.S. Environmental Protection Agency (EPA) is hosting a webinar on how to apply for ENERGY STAR certification in Portfolio Manager. Understand the value of the ENERGY STAR certification, see the step-by-step process of applying, and gain tips to help your property get from application to award.

  8. Search for OB stars running away from young star clusters. I. NGC 6611

    E-Print Network [OSTI]

    V. V. Gvaramadze; D. J. Bomans

    2009-03-04T23:59:59.000Z

    N-body simulations have shown that the dynamical decay of the young (~1 Myr) Orion Nebula cluster could be responsible for the loss of at least half of its initial content of OB stars. This result suggests that other young stellar systems could also lose a significant fraction of their massive stars at the very beginning of their evolution. To confirm this expectation, we used the Mid-Infrared Galactic Plane Survey (completed by the Midcourse Space Experiment satellite) to search for bow shocks around a number of young ($\\la$ several Myr) clusters and OB associations. We discovered dozens of bow shocks generated by OB stars running away from these stellar systems, supporting the idea of significant dynamical loss of OB stars. In this paper, we report the discovery of three bow shocks produced by O-type stars ejected from the open cluster NGC6611 (M16). One of the bow shocks is associated with the O9.5Iab star HD165319, which was suggested to be one of "the best examples for isolated Galactic high-mass star formation" (de Wit et al. 2005, A&A, 437, 247). Possible implications of our results for the origin of field OB stars are discussed.

  9. The neutron star mass distribution

    SciTech Connect (OSTI)

    Kiziltan, Bülent [Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States); Kottas, Athanasios; De Yoreo, Maria [Department of Applied Mathematics and Statistics, University of California, Santa Cruz, CA 95064 (United States); Thorsett, Stephen E., E-mail: bkiziltan@cfa.harvard.edu [Department of Astronomy and Astrophysics, University of California and UCO/Lick Observatory, Santa Cruz, CA 95064 (United States)

    2013-11-20T23:59:59.000Z

    In recent years, the number of pulsars with secure mass measurements has increased to a level that allows us to probe the underlying neutron star (NS) mass distribution in detail. We critically review the radio pulsar mass measurements. For the first time, we are able to analyze a sizable population of NSs with a flexible modeling approach that can effectively accommodate a skewed underlying distribution and asymmetric measurement errors. We find that NSs that have evolved through different evolutionary paths reflect distinctive signatures through dissimilar distribution peak and mass cutoff values. NSs in double NS and NS-white dwarf (WD) systems show consistent respective peaks at 1.33 M {sub ?} and 1.55 M {sub ?}, suggesting significant mass accretion (?m ? 0.22 M {sub ?}) has occurred during the spin-up phase. The width of the mass distribution implied by double NS systems is indicative of a tight initial mass function while the inferred mass range is significantly wider for NSs that have gone through recycling. We find a mass cutoff at ?2.1 M {sub ?} for NSs with WD companions, which establishes a firm lower bound for the maximum NS mass. This rules out the majority of strange quark and soft equation of state models as viable configurations for NS matter. The lack of truncation close to the maximum mass cutoff along with the skewed nature of the inferred mass distribution both enforce the suggestion that the 2.1 M {sub ?} limit is set by evolutionary constraints rather than nuclear physics or general relativity, and the existence of rare supermassive NSs is possible.

  10. North Carolina Eastern M P A | 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 America Drilling Fluids Market HomesourceNorthNorth

  11. North Central Power Co 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 being directedAnnual SiteofEvaluatingGroup |JilinLuOpenNorth America Drilling Fluids MarketNorth CarolinaNorth

  12. North China Electric Power University Beijing | 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 America Drilling Fluids MarketNorthNorth China

  13. North Georgia Elec Member Corp | 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 America Drilling Fluids MarketNorthNorth

  14. Novel Geometrical Models of Relativistic Stars. II. Incompressible Stars and Heavy Black Dwarfs

    E-Print Network [OSTI]

    P. P. Fiziev

    2004-09-20T23:59:59.000Z

    In a series of articles we describe a novel class of geometrical models of relativistic stars. Our approach to the static spherically symmetric solutions of Einstein equations is based on a careful physical analysis of radial gauge conditions. It turns out that there exist heavy black dwarfs: relativistic stars with arbitrary large mass, which are to have arbitrary small radius and arbitrary small luminosity. In the present article we mathematically prove this new phenomena, using a detailed consideration of incompressible GR stars. We study the whole two parameter family of solutions of extended TOV equations for incompressible stars. This example is used to illustrate most of the basic features of the new geometrical models of relativistic stars. Comparison with newest observational data is discussed

  15. PHOTOMETRIC REDSHIFTS IN THE HAWAII-HUBBLE DEEP FIELD-NORTH (H-HDF-N)

    SciTech Connect (OSTI)

    Yang, G.; Xue, Y. Q.; Kong, X.; Wang, J.-X.; Yuan, Y.-F.; Zhou, H. Y. [Key Laboratory for Research in Galaxies and Cosmology, Center for Astrophysics, Department of Astronomy, University of Science and Technology of China, Chinese Academy of Sciences, Hefei, Anhui 230026 (China); Luo, B.; Brandt, W. N. [Department of Astronomy and Astrophysics, 525 Davey Lab, The Pennsylvania State University, University Park, PA 16802 (United States); Alexander, D. M. [Department of Physics, Durham University, Durham DH1 3LE (United Kingdom); Bauer, F. E. [Instituto de Astrofísica, Facultad de Física, Pontificia Universidad Católica de Chile, 306, Santiago 22 (Chile); Cui, W. [Department of Physics, Purdue University, West Lafayette, IN 47907 (United States); Lehmer, B. D. [The Johns Hopkins University, Homewood Campus, Baltimore, MD 21218 (United States); Wu, X.-B. [Department of Astronomy, Peking University, Beijing 100871 (China); Yuan, F., E-mail: yg1991@mail.ustc.edu.cn, E-mail: xuey@ustc.edu.cn [Key Laboratory for Research in Galaxies and Cosmology, Shanghai Astronomical Observatory, Chinese Academy of Sciences, 80 Nandan Road, Shanghai 200030 (China)

    2015-01-01T23:59:59.000Z

    We derive photometric redshifts (z {sub phot}) for sources in the entire (?0.4 deg{sup 2}) Hawaii-Hubble Deep Field-North (H-HDF-N) field with the EAzY code, based on point-spread-function-matched photometry of 15 broad bands from the ultraviolet (U band) to mid-infrared (IRAC 4.5 ?m). Our catalog consists of a total of 131,678 sources. We evaluate the z {sub phot} quality by comparing z {sub phot} with spectroscopic redshifts (z {sub spec}) when available, and find a value of normalized median absolute deviation ?{sub NMAD} = 0.029 and an outlier fraction of 5.5% (outliers are defined as sources having |z{sub phot} – z{sub spec} |/(1 + z{sub spec} ) > 0.15) for non-X-ray sources. More specifically, we obtain ?{sub NMAD} = 0.024 with 2.7% outliers for sources brighter than R = 23 mag, ?{sub NMAD} = 0.035 with 7.4% outliers for sources fainter than R = 23 mag, ?{sub NMAD} = 0.026 with 3.9% outliers for sources having z < 1, and ?{sub NMAD} = 0.034 with 9.0% outliers for sources having z > 1. Our z {sub phot} quality shows an overall improvement over an earlier z {sub phot} work that focused only on the central H-HDF-N area. We also classify each object as a star or galaxy through template spectral energy distribution fitting and complementary morphological parameterization, resulting in 4959 stars and 126,719 galaxies. Furthermore, we match our catalog with the 2 Ms Chandra Deep Field-North main X-ray catalog. For the 462 matched non-stellar X-ray sources (281 having z {sub spec}), we improve their z {sub phot} quality by adding three additional active galactic nucleus templates, achieving ?{sub NMAD} = 0.035 and an outlier fraction of 12.5%. We make our catalog publicly available presenting both photometry and z {sub phot}, and provide guidance on how to make use of our catalog.

  16. The star pile in Abell 545

    E-Print Network [OSTI]

    R. Salinas; T. Richtler; A. J. Romanowsky; M. J. West; Y. Schuberth

    2007-09-23T23:59:59.000Z

    Context:Struble (1988) found what appeared to be a cD halo without cD galaxy in the center of the galaxy cluster Abell 545. This remarkable feature has been passed almost unnoticed for nearly twenty years. Aims:Our goal is to review Struble's claim by providing a first (preliminary) photometric and spectroscopic analysis of this ''star pile''. Methods:Based on archival VLT-images and long-slit spectra obtained with Gemini-GMOS, we describe the photometric structure and measure the redshift of the star pile and of the central galaxy. Results:The star pile is indeed associated with Abell 545. Its velocity is higher by about 1300 km/s than that of the central object. The spectra indicate an old, presumably metal-rich population. Its brightness profile is much shallower than that of typical cD-galaxies. Conclusions:The formation history and the dynamical status of the star pile remain elusive, until high S/N spectra and a dynamical analysis of the galaxy cluster itself become available. We suggest that the star pile might provide an interesting test of the Cold Dark Matter paradigm.

  17. Hypervelocity Stars. I. The Spectroscopic Survey

    E-Print Network [OSTI]

    Warren R. Brown; Margaret J. Geller; Scott J. Kenyon; Michael J. Kurtz

    2006-04-13T23:59:59.000Z

    We discuss our targeted search for hypervelocity stars (HVSs), stars traveling with velocities so extreme that dynamical ejection from a massive black hole is their only suggested origin. Our survey, now half complete, has successfully identified a total of four probable HVSs plus a number of other unusual objects. Here we report the most recently discovered two HVSs: SDSS J110557.45+093439.5 and possibly SDSS J113312.12+010824, traveling with Galactic rest-frame velocities at least +508+-12 and +418+-10 km/s, respectively. The other late B-type objects in our survey are consistent with a population of post main-sequence stars or blue stragglers in the Galactic halo, with mean metallicity [Fe/H]=-1.3 and velocity dispersion 108+-5 km/s. Interestingly, the velocity distribution shows a tail of objects with large positive velocities that may be a mix of low-velocity HVSs and high-velocity runaway stars. Our survey also includes a number of DA white dwarfs with unusually red colors, possibly extremely low mass objects. Two of our objects are B supergiants in the Leo A dwarf, providing the first spectroscopic evidence for star formation in this dwarf galaxy within the last ~30 Myr.

  18. Quasiuniversal properties of neutron star mergers

    E-Print Network [OSTI]

    Sebastiano Bernuzzi; Alessandro Nagar; Simone Balmelli; Tim Dietrich; Maximiliano Ujevic

    2014-06-06T23:59:59.000Z

    Binary neutron star mergers are studied using nonlinear 3+1 numerical relativity simulations and the analytical effective-one-body (EOB) model. The EOB model predicts quasiuniversal relations between the mass-rescaled gravitational wave frequency and the binding energy at the moment of merger, and certain dimensionless binary tidal coupling constants depending on the stars Love numbers, compactnesses and the binary mass ratio. These relations are quasiuniversal in the sense that, for a given value of the tidal coupling constant, they depend significantly neither on the equation of state nor on the mass ratio, though they do depend on stars spins. The spin dependence is approximately linear for small spins aligned with the orbital angular momentum. The quasiuniversality is a property of the conservative dynamics; nontrivial relations emerge as the binary interaction becomes tidally dominated. This analytical prediction is qualitatively consistent with new, multi-orbit numerical relativity results for the relevant case of equal-mass irrotational binaries. Universal relations are thus expected to characterize neutron star mergers dynamics. In the context of gravitational wave astronomy, these universal relations may be used to constrain the neutron star equation of state using waveforms that model the merger accurately.

  19. Quark Matter, Massive Stars and Strange Planets

    E-Print Network [OSTI]

    F. Weber; Ch. Schaab; M. K. Weigel; N. K. Glendenning

    1996-04-09T23:59:59.000Z

    This paper gives an overview of the properties of all possible equilibrium sequences of compact strange-matter stars with nuclear crusts, which range from strange stars to strange dwarfs. In contrast to their non-strange counterparts, --neutron stars and white dwarfs--, their properties are determined by two (rather than one) parameters, the central star density and the density at the base of the nuclear crust. This leads to stellar strange-matter configurations whose properties are much more complex than those of the conventional sequence. As an example, two generically different categories of stable strange dwarfs are found, which could be the observed white dwarfs. Furthermore we find very low-mass strange stellar objects, with masses as small as those of Jupiter or even lighter planets. Such objects, if abundant enough in our Galaxy, should be seen by the presently performed gravitational microlensing searches. Further aspects studied in this paper concern the limiting rotational periods and the cooling behavior of neutron stars and their strange counterparts.

  20. Properties of Post-AGB stars

    E-Print Network [OSTI]

    P. Garcia-Lario

    2006-05-18T23:59:59.000Z

    A review is presented of the most relevant results obtained in the last few years on this rare class of astronomical sources. Multi-wavelength analysis of an increasing number of post-AGB stars reveal that they constitute a more inhomogeneous population of stars than previously thought. The new data available allow us to study these sources with unprecedent spatial resolution and to extend our spectroscopic knowledge in a systematic way to the infrared for the first time, where crucial information is contained on the chemical composition of the gas and dust in their circumstellar shells. The overall infrared properties derived from ISO and Spitzer data can be used to trace the mass loss history and the chemical evolution of the ejected material. The new results impose severe observational constraints to the current nucleosynthesis models and suggest that the evolution is mainly determined not only by the initial mass but also by the metallicity of the progenitor star. Post-AGB samples are likely to grow in the near future with the advent of new data from space facilities like Spitzer or Akari. Studies of post-AGB stars in the galactic halo, the Magellanic Clouds and other galaxies of the Local Group will certainly improve our knowledge on the evolutionary connections between AGB stars and PNe.

  1. Strange Quark Matter and Compact Stars

    E-Print Network [OSTI]

    Fridolin Weber

    2004-09-27T23:59:59.000Z

    Astrophysicists distinguish between three different types of compact stars. These are white dwarfs, neutron stars, and black holes. The former contain matter in one of the densest forms found in the Universe which, together with the unprecedented progress in observational astronomy, make such stars superb astrophysical laboratories for a broad range of most striking physical phenomena. These range from nuclear processes on the stellar surface to processes in electron degenerate matter at subnuclear densities to boson condensates and the existence of new states of baryonic matter--like color superconducting quark matter--at supernuclear densities. More than that, according to the strange matter hypothesis strange quark matter could be more stable than nuclear matter, in which case neutron stars should be largely composed of pure quark matter possibly enveloped in thin nuclear crusts. Another remarkable implication of the hypothesis is the possible existence of a new class of white dwarfs. This article aims at giving an overview of all these striking physical possibilities, with an emphasis on the astrophysical phenomenology of strange quark matter. Possible observational signatures associated with the theoretically proposed states of matter inside compact stars are discussed as well. They will provide most valuable information about the phase diagram of superdense nuclear matter at high baryon number density but low temperature, which is not accessible to relativistic heavy ion collision experiments.

  2. Neutron Stars Opacity and Proton Fraction

    E-Print Network [OSTI]

    P. N. Alcain; C. O. Dorso

    2015-02-03T23:59:59.000Z

    Background: In neutron stars the nucleons are submitted to extreme conditions. The study of this natural occurring objects can lead to further understanding of the behaviour of nuclear matter in highly asymmetric nuclei. Among the characteristics of neutron stars, its neutrino absorption - associated to structural inhomoegeneities - stands out as one of the possible magnitudes linked to an observable. Purpose: We have carried out a systematic study of this neutrino absorption for different thermodynamic conditions in order to assess the impact that the structure has on it. Method: We study the dynamics of nucleons in conditions according to the neutron star crust with a semiclassical molecular dynamics model, for different densities, proton fractions and temperature, we calculate the long range opacity and the cluster distribution. Results: The neutrino absorption, the main mechanism for neutron stars cooldown, takes its highest value for temperatures and densities low compared with the inner crust, and a proton fraction is close to the symmetric case $x=0.5$. Conclusions: Within the used model the neutrinos are absorbed mostly close to the surface of the neutron star. Also, for high temperatures, a large cluster still exists, but the appearance of several small-sized clusters smears out the very long range order needed for neutrino absorption.

  3. Thermonuclear Burning on Rapidly Accreting Neutron Stars

    E-Print Network [OSTI]

    Lars Bildsten

    1997-09-10T23:59:59.000Z

    Neutron stars in mass-transferring binaries are accreting the hydrogen and helium rich matter from the surfaces of their companions. This article simply explains the physics associated with how that material eventually fuses to form heavier nuclei and the observations of the time dependent phenomena (such as Type I X-ray bursts) associated with the thermally unstable thermonuclear reactions. We explain how the outcome depends on the composition of the accreting matter, the accretion rate and the mass, radius and thermal state of the neutron star. We also introduce many new analytic relations that are convenient for comparisons to both observations and computational results. After explaining nuclear burning for spherically symmetric accretion onto neutron stars, we discuss the possibility of asymmetric burning. In particular, we discuss some of the mysteries from EXOSAT observations of Type I X-Ray bursts and how the solution to these puzzles may lie in considering the lateral propagation of nuclear burning fronts around the star. Fully understanding this problem requires knowledge of parameters previously neglected such as the distribution of fresh fuel on the star, the magnetic field strength, and the stellar rotation. Recent RXTE observations of bursters may finally tell us some of these parameters.

  4. Color superconducting quark matter in compact stars

    E-Print Network [OSTI]

    D. B. Blaschke; T. Klahn; F. Sandin

    2007-12-02T23:59:59.000Z

    Recent indications for high neutron star masses (M \\sim 2 M_sun) and large radii (R > 12 km) could rule out soft equations of state and have provoked a debate whether the occurence of quark matter in compact stars can be excluded as well. We show that modern quantum field theoretical approaches to quark matter including color superconductivity and a vector meanfield allow a microscopic description of hybrid stars which fulfill the new, strong constraints. For these objects color superconductivity turns out to be an essential ingredient for a successful description of the cooling phenomenology in accordance with recently developed tests. We discuss the energy release in the neutrino untrapping transition as a new aspect of the problem that hybrid stars masquerade themselves as neutron stars. Quark matter searches in future generations of low-temperature/high-density nucleus-nucleus collision experiments such as low-energy RHIC and CBM @ FAIR might face the same problem of an almost crossover behavior of the deconfinement transition. Therefore, diagnostic tools shall be derived from effects of color superconductivity.

  5. area north island: Topics by E-print Network

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

    Stanley Alfred 1957-01-01 37 Structural geology of the Irons Fork - North Fork Creek area, Lake Ouachita, Arkansas Texas A&M University - TxSpace Summary: STRUCTURAL...

  6. 9 Place-names in north-west Greenland

    E-Print Network [OSTI]

    Leonard, Stephen Pax

    last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 9 Length of track 23 minutes Title of track Place-names in north-west Greenland Translation...

  7. 15 Dorti Peterson – life in north-west Greenland

    E-Print Network [OSTI]

    Leonard, Stephen Pax

    last updated on Monday, 4 April 2011 Accession Form for Individual Recordings: Collection / Collector Name Stephen Leonard Tape No. / Track / Item No. 15 Length of track 40 minutes Title of track Dorti Peterson – life in north-west Greenland...

  8. Coal Conversion Facility Privilege Tax Exemptions (North Dakota)

    Broader source: Energy.gov [DOE]

    Coal Conversion Facility Privilege Tax Exemptions are granted under a variety of conditions through the North Dakota Tax Department. Privilege tax, which is in lieu of property taxes on the...

  9. Mining and Gas and Oil Production (North Dakota)

    Broader source: Energy.gov [DOE]

    This chapter of the North Dakota Code contains provisions for oil, gas, and coal mining and the development of geothermal resources. This chapter addresses claims to mines, licensing and control of...

  10. Geophysical Setting of the Blue Mountain Geothermal Area, North...

    Open Energy Info (EERE)

    Setting of the Blue Mountain Geothermal Area, North-Central Nevada and Its Relationship to a Crustal-Scale Fracture Associated with the Inception of the Yellowstone Hotspot Jump...

  11. Secondary residential demand trends in contemporary Japan and North Asia

    E-Print Network [OSTI]

    Lam, Michael M

    2009-01-01T23:59:59.000Z

    This research paper attempts to address the opportunity and challenges for Vacation Residential Development in North Asia, with specific geographic focus on Japan first through an analysis of national and regional consumption, ...

  12. adjacent basement north: Topics by E-print Network

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

    21 @Georgia at Athens, Georgia Oct 05 @ Tulane at New Orleans, GA Oct 12 Middle Tennessee Denton, Texas Oct 19 @Louisiana Tech Mohanty, Saraju P. 268 North Shore City Tourism...

  13. arne field north: Topics by E-print Network

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

    21 @Georgia at Athens, Georgia Oct 05 @ Tulane at New Orleans, GA Oct 12 Middle Tennessee Denton, Texas Oct 19 @Louisiana Tech Mohanty, Saraju P. 330 North Shore City Tourism...

  14. abeokuta north lga: Topics by E-print Network

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

    21 @Georgia at Athens, Georgia Oct 05 @ Tulane at New Orleans, GA Oct 12 Middle Tennessee Denton, Texas Oct 19 @Louisiana Tech Mohanty, Saraju P. 111 North Shore City Tourism...

  15. North America Drilling Fluids Market Segment Forecasts up to...

    Open Energy Info (EERE)

    America and Asia Pacific is steering the market for drilling fluids. Half of the world's oil and gas reserves are present in the U.S. hence North America is entitled as the...

  16. North Shore Gas- Commercial & Industrial Prescriptive Rebate Program

    Broader source: Energy.gov [DOE]

    North Shore Gas offers the Chicagoland Natural Gas Savings Program to help non-residential customers purchase energy efficient equipment. Rebates are available on energy efficient furnaces, boilers...

  17. altmark north german: Topics by E-print Network

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

    R. South Platte R. Dismal R. Platte R. Study area 0 0 1 KILOMETER 1 MILE Scotts Bluff County Tri-St ate Canal Mitchell Canal North Platte River Enterprise 2002 Prepared in...

  18. Myles, Looking North-Northwest from the Rincons

    E-Print Network [OSTI]

    north-facing hollow to hunt. He might see the witch's broom of a flowering ocotillo Spreading pale to all your great sins forgiven, From dead creosote to the sweet green brushes of desert spoon up

  19. Supply, Demand, and Export Outlook for North American Oil and...

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

    Supply, Demand, and Export Outlook for North American Oil and Gas For Energy Infrastructure Summit September 15, 2014 | Houston, TX By Adam Sieminski, EIA Administrator 0 20 40 60...

  20. Solid Waste Management and Land Protection (North Dakota)

    Broader source: Energy.gov [DOE]

    The policy of the State of North Dakota is to encourage and provide for environmentally acceptable and economical solid waste management practices, and the Department of Health may promulgate...

  1. area north sea: Topics by E-print Network

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

    wave climate Conclusions & Discussion 12;NCK days 18 March 2011 model at KNMI Covers North Sea area Wind and sea level pressure results from the ESSENCE- Ensemble are not...

  2. area bonsal north: Topics by E-print Network

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

    Brian Edmund 2012-06-07 18 Bimodal Distribution of Area-Weighted Latitude of Sunspots And Solar North-South Asymmetry CERN Preprints Summary: We study the latitudinal distribution...

  3. area north pool: Topics by E-print Network

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

    Brian Edmund 2012-06-07 27 Bimodal Distribution of Area-Weighted Latitude of Sunspots And Solar North-South Asymmetry CERN Preprints Summary: We study the latitudinal distribution...

  4. area north hangar: Topics by E-print Network

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

    Brian Edmund 2012-06-07 19 Bimodal Distribution of Area-Weighted Latitude of Sunspots And Solar North-South Asymmetry CERN Preprints Summary: We study the latitudinal distribution...

  5. area uruguayan north: Topics by E-print Network

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

    Brian Edmund 2012-06-07 18 Bimodal Distribution of Area-Weighted Latitude of Sunspots And Solar North-South Asymmetry CERN Preprints Summary: We study the latitudinal distribution...

  6. area north demolition: Topics by E-print Network

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

    Brian Edmund 2012-06-07 32 Bimodal Distribution of Area-Weighted Latitude of Sunspots And Solar North-South Asymmetry CERN Preprints Summary: We study the latitudinal distribution...

  7. area north final: Topics by E-print Network

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

    Brian Edmund 2012-06-07 25 Bimodal Distribution of Area-Weighted Latitude of Sunspots And Solar North-South Asymmetry CERN Preprints Summary: We study the latitudinal distribution...

  8. area north haer: Topics by E-print Network

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

    Brian Edmund 2012-06-07 18 Bimodal Distribution of Area-Weighted Latitude of Sunspots And Solar North-South Asymmetry CERN Preprints Summary: We study the latitudinal distribution...

  9. area north idaho: Topics by E-print Network

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

    Brian Edmund 2012-06-07 35 Bimodal Distribution of Area-Weighted Latitude of Sunspots And Solar North-South Asymmetry CERN Preprints Summary: We study the latitudinal distribution...

  10. arctic north america: Topics by E-print Network

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

    in the boreal forest; for example, there has been a doubling of the area burned in North America in the past 20 years. The disturbance regime in tundra may not have changed....

  11. SEMI-ANNUAL REPORTS FOR PANGEA LNG (NORTH AMERICA) HOLDINGS,...

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

    More Documents & Publications QER - Comment of America's Natural Gas Alliance 2 Pangea LNG (North America) Holdings, LLC - 14-002-CIC (FE Dkt. No. 12-184-LNG New Company Name:...

  12. Wind Powering America: The Next Steps in North Carolina

    SciTech Connect (OSTI)

    Banks, Jennifer L. [North Carolina Solar Center; Scanlin, Dennis [Appalachian State University; Quinlan, Paul [North Carolina Sustainable Energy Association

    2013-06-18T23:59:59.000Z

    The goal of this project is to apply the WPA’s proactive outreach strategy to the problem of educating the public about the likely transmission infrastructure developments concomitant to the significant development of wind energy resources in North Carolina. Given the lead time to develop significant new transmission infrastructure (5-10 years), it is critical to begin this outreach work today, so that wind resources can be developed to adequately meet the 20% by 2030 goal in the mid- to long-term (10-20 years). The project team planned to develop a transmission infrastructure outreach campaign for North Carolina by: (1) convening a utility interest group (UIG) of the North Carolina Wind Working Group (NC WWG) consisting of electric utilities in the state and the Southeast; and (2) expanding outreach to local and state government officials in North Carolina.

  13. 2011 Municipal Consortium North Central Region Workshop Materials

    Broader source: Energy.gov [DOE]

    This page provides links to the presentations given at the DOE Municipal Solid-State Street Lighting Consortium North Central Region Workshop, held in Kansas City, MO, March 8–9, 2011.

  14. 2011 Municipal Consortium North Central Region Workshop Materials

    Broader source: Energy.gov [DOE]

    This page provides links to the presentations given at the DOE Municipal Solid-State Street Lighting Consortium North Central Region Workshop, held in Detroit, June 16–17, 2011.

  15. AEP Texas North Company- SMART Source Solar PV Rebate Program

    Broader source: Energy.gov [DOE]

    American Electric Power Texas North Company (AEP-TNC) offers rebates to customers that install photovoltaic (PV) systems on homes or other buildings. Customers of all rate classes (e.g.,...

  16. Microsoft Word - Finely_NorthValley_CX.docx

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

    Manager - KEWM-4 Proposed Action: Finely Creek and North Valley Creek property funding Fish and Wildlife Project No. and Contract No.: 2002-003-00, BPA-58888 Categorical Exclusion...

  17. Peoples Gas and North Shore Gas- Bonus Rebate Program (Illinois)

    Broader source: Energy.gov [DOE]

    The Peoples Gas and North Shore Gas Natural Gas Savings Programs are offering the following bonus rebates (in addition to the joint utilities bonus rebate). For both offers below, installation must...

  18. An assessment of North Korea's nuclear weapons capabilities

    E-Print Network [OSTI]

    Sivels, Ciara (Ciara Brooke)

    2013-01-01T23:59:59.000Z

    In February of 2013, North Korea conducted its third nuclear weapons test. Speculations are that this test was conducted to further develop a warhead small enough to fit on an intercontinental ballistic missile. This test ...

  19. Oil and Gas Gross Production Tax (North Dakota)

    Broader source: Energy.gov [DOE]

    A gross production tax applies to most gas produced in North Dakota. Gas burned at the well site to power an electrical generator that consumes at least 75 percent of the gas is exempt from...

  20. The North Korean missile program: How advanced is it?

    SciTech Connect (OSTI)

    Wright, D.; Kadyshev, T.

    1994-04-01T23:59:59.000Z

    For the past three years there have been increasing numbers of reports that North Korea is developing a 1,000-1,300-kilometer range missile generally referred to as the NoDongg-1. Pyongyang`s missile program has generated international concern because of North Korea`s potential nuclear capabilities, its proximity to South Korea and Japan and its reported missile sales to Iran, Syria and Libya. In June 1993, Japanese and South Korean wire services reported that North Korea had test fired several missiles into the Sea of Japan in late May, at least two of which were though to be NoDong-1 missiles. A missile with a 1,300-kilometer range would give North Korea the capability to reach all of Japan, and give Iran and Libya the capability to reach all of Israel.