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1

Michael Hess | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Michael Hess Michael Hess About Us Michael Hess - Former Digital Communications Specialist, Office of Public Affairs Michael Hess Michael joined the Office of New Media at the Energy Department in August 2011 to write and promote stories about science technology, basic and applied science, technology transfer, commercialization, research and development, and the National Labs. In a previous life, Michael was an enlisted Air Force public affairs representative where he worked as the editor of RAF Lakenheath's Jet48 before being stationed in Tucson as a media relations specialist. Michael proudly confesses to being an Ohio native where most of his family still lives. Also within Ohio's fair borders he studied journalism and linguistics at Ohio University. Michael prides himself on lightning-quick

2

Hess Retail Natural Gas and Elec. Acctg. (Connecticut) | Open...  

Open Energy Info (EERE)

Hess Retail Natural Gas and Elec. Acctg. (Connecticut) Jump to: navigation, search Name Hess Retail Natural Gas and Elec. Acctg. Place Connecticut Utility Id 22509 References EIA...

3

38017,"AMERADA HESS CORP ",1,130,"MOTOR...  

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

CO ",32,840,"UNFINISHED OILS, HEAVY GAS OILS",1003,"NEWARK, NJ","NEW JERSEY",1,515,"KOREA, REPUBLIC OF",265,0,0,"IMTT BAYONNE ","BAYONNE TERM","NJ","NEW JERSEY",1 38017,"SHELL...

4

Systems of Hess-Appel'rot type  

E-Print Network (OSTI)

We construct higher-dimensional generalizations of the classical Hess-Appel'rot rigid body system. We give a Lax pair with a spectral parameter leading to an algebro-geometric integration of this new class of systems, which is closely related to the integration of the Lagrange bitop performed by us recently and uses Mumford relation for theta divisors of double unramified coverings. Based on the basic properties satisfied by such a class of systems related to bi-Poisson structure, quasi-homogeneity, and conditions on the Kowalevski exponents, we suggest an axiomatic approach leading to what we call the "class of systems of Hess-Appel'rot type".

Vladimir Dragovic; Borislav Gajic

2006-02-09T23:59:59.000Z

5

Hess Retail Natural Gas and Elec. Acctg. (Maryland) | Open Energy...  

Open Energy Info (EERE)

Maryland) Jump to: navigation, search Name Hess Retail Natural Gas and Elec. Acctg. Place Maryland Utility Id 22509 References EIA Form EIA-861 Final Data File for 2010 -...

6

Hess Retail Natural Gas and Elec. Acctg. (Pennsylvania) | Open...  

Open Energy Info (EERE)

Pennsylvania) Jump to: navigation, search Name Hess Retail Natural Gas and Elec. Acctg. Place Pennsylvania Utility Id 22509 References EIA Form EIA-861 Final Data File for 2010 -...

7

Hess Retail Natural Gas and Elec. Acctg. (Delaware) | Open Energy...  

Open Energy Info (EERE)

Delaware) Jump to: navigation, search Name Hess Retail Natural Gas and Elec. Acctg. Place Delaware Utility Id 22509 References EIA Form EIA-861 Final Data File for 2010 -...

8

Hess Retail Natural Gas and Elec. Acctg. (Massachusetts) | Open...  

Open Energy Info (EERE)

Massachusetts) Jump to: navigation, search Name Hess Retail Natural Gas and Elec. Acctg. Place Massachusetts Utility Id 22509 References EIA Form EIA-861 Final Data File for 2010 -...

9

Aspects of Hess' Acquisition of American Oil & Gas  

Reports and Publications (EIA)

On July 27, 2010, Hess Corporation announced that it had agreed to acquire American Oil & Gas, Inc. in a stock-only transaction worth as much as $488 million (based on Hess' closing price of $53.30/share, anticipated number of newly issued shares, and $30 million credit facility extended to American Oil & Gas prior to closing).

Neal Davis

2010-08-02T23:59:59.000Z

10

Hess Retail Natural Gas and Elec. Acctg. (Rhode Island) | Open...  

Open Energy Info (EERE)

Rhode Island) Jump to: navigation, search Name Hess Retail Natural Gas and Elec. Acctg. Place Rhode Island Utility Id 22509 References EIA Form EIA-861 Final Data File for 2010 -...

11

Hess Retail Natural Gas and Elec. Acctg. (District of Columbia...  

Open Energy Info (EERE)

District of Columbia) Jump to: navigation, search Name Hess Retail Natural Gas and Elec. Acctg. Place District of Columbia Utility Id 22509 References EIA Form EIA-861 Final Data...

12

Hess Retail Natural Gas and Elec. Acctg. (New Hampshire) | Open...  

Open Energy Info (EERE)

Hampshire) Jump to: navigation, search Name Hess Retail Natural Gas and Elec. Acctg. Place New Hampshire Utility Id 22509 References EIA Form EIA-861 Final Data File for 2010 -...

13

Hess Retail Natural Gas and Elec. Acctg. (Maine) | Open Energy...  

Open Energy Info (EERE)

Maine) Jump to: navigation, search Name Hess Retail Natural Gas and Elec. Acctg. Place Maine Utility Id 22509 References EIA Form EIA-861 Final Data File for 2010 - File220101...

14

10 Questions for a Spectroscopy Expert: Nancy Hess | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Spectroscopy Expert: Nancy Hess Spectroscopy Expert: Nancy Hess 10 Questions for a Spectroscopy Expert: Nancy Hess April 14, 2011 - 4:34pm Addthis Nancy Hess | Photo Courtesy of Pacific Northwest National Lab (PNNL) Nancy Hess | Photo Courtesy of Pacific Northwest National Lab (PNNL) Niketa Kumar Niketa Kumar Public Affairs Specialist, Office of Public Affairs "I have always enjoyed the beauty and the complexity of processes in the natural world -- Spectroscopy gives you that insight." Nancy Hess, Spectroscopy Expert Meet Nancy Hess -- an expert in spectroscopy (i.e. the change in light intensity and/or frequency resulting from its interaction with matter that gives information about electronic structure, geometry and chemical bonds). At Pacific Northwest National Lab (PNNL), she leads the

15

Lattice Trapping Barriers to Brittle Fracture N. Bernstein and D.W. Hess*  

E-Print Network (OSTI)

Lattice Trapping Barriers to Brittle Fracture N. Bernstein and D.W. Hess* Center for Computational HPCMPO CHSSI program, and D.W. H. the National Science Foundation. *Current address: Division, 4029 (1998). [18] N. Bernstein and D.W. Hess, in Multiscale Modeling of Materials--2000, edited by L. P

16

Hess Retail Natural Gas and Elec. Acctg. (New York) | Open Energy...  

Open Energy Info (EERE)

York) Jump to: navigation, search Name Hess Retail Natural Gas and Elec. Acctg. Place New York Utility Id 22509 References EIA Form EIA-861 Final Data File for 2010 - File220101...

17

H.E.S.S. Observations of LS 5039  

E-Print Network (OSTI)

Recent observations of the binary system LS5039 with the High Energy Stereoscopic System (H.E.S.S.) revealed that its Very High Energy (VHE) gamma-ray emission is modulated at the 3.9 days orbital period of the system. The bulk of the emission is largely confined to half of the orbit, peaking around the inferior conjunction epoch of the compact object. The flux modulation provides the first indication of gamma-ray absorption by pair production on the intense stellar photon field. This implies that the production region size must be not significantly greater than the gamma-gamma photosphere size (~1 AU), thus excluding the large scale collimated outflows or jets (extending out to ~1000 AU). A hardening of the spectrum is also observed at the same epoch between 0.2 and a few TeV which is unexpected under a pure absorption scenario and could rather arise from variation with phase in the maximum electron energy and/or the dominant VHE gamma-ray production mechanism. This first-time observation of modulated gamma-ray emission allows precise tests of the acceleration and emission models in binary systems.

Mathieu De Naurois; the H. E. S. S. Collaboration Collaboration

2006-09-02T23:59:59.000Z

18

The Trigger System of the H.E.S.S. Telescope Array  

E-Print Network (OSTI)

H.E.S.S. -- The High Energy Stereoscopic System-- is a new system of large atmospheric Cherenkov telescopes for GeV/TeV Gamma-ray astronomy. This paper describes the trigger system of H.E.S.S. with emphasis on the multi-telescope array level trigger. The system trigger requires the simultaneous detection of air-showers by several telescopes at the hardware level. This requirement allows a suppression of background events which in turn leads to a lower system energy threshold for the detection of Gamma-rays. The implementation of the H.E.S.S. trigger system is presented along with data taken to characterise its performance.

S. Funk; G. Hermann; J. Hinton; D. Berge; K. Bernloehr; W. Hofmann; P. Nayman; F. Toussenel; P. Vincent

2004-08-20T23:59:59.000Z

19

Probing the ATIC peak in the cosmic-ray electron spectrum with H.E.S.S  

E-Print Network (OSTI)

The measurement of an excess in the cosmic-ray electron spectrum between 300 and 800 GeV by the ATIC experiment has - together with the PAMELA detection of a rise in the positron fraction up to 100 GeV - motivated many interpretations in terms of dark matter scenarios; alternative explanations assume a nearby electron source like a pulsar or supernova remnant. Here we present a measurement of the cosmic-ray electron spectrum with H.E.S.S. starting at 340 GeV. The H.E.S.S. data with their lower statistical errors show no indication of a structure in the electron spectrum, but rather a power-law spectrum with spectral index of 3.0 +- 0.1 (stat.) +- 0.3 (syst.) which steepens at about 1 TeV.

Aharonian, F

2009-01-01T23:59:59.000Z

20

Dark matter and pulsar signals for Fermi LAT, PAMELA, ATIC, HESS and WMAP data  

E-Print Network (OSTI)

We analyze new diffuse gamma-ray data from the Fermi Gamma-ray Space Telescope, which do not confirm an excess in the EGRET data at galactic mid-latitudes, in combination with measurements of electron and positron fuxes from PAMELA, Fermi and HESS within the context of three possible sources: dark matter (DM) annihilation or decay into charged leptons, and a continuum distribution of pulsars. We allow for variations in the backgrounds, consider several DM halo profiles, and account for systematic uncertainties in data where possible. We find that all three scenarios represent the data well. The pulsar description holds for a wide range of injection energy spectra. We compare with ATIC data and the WMAP haze where appropriate, but do not fit these data since the former are discrepant with Fermi data and the latter are subject to large systematic uncertainties. We show that for cusped halo profiles, Fermi could observe a spectacular gamma-ray signal of DM annihilation from the galactic center while seeing no excess at mid-latitudes.

V. Barger; Y. Gao; W. -Y. Keung; D. Marfatia; G. Shaughnessy

2009-04-14T23:59:59.000Z

Note: This page contains sample records for the topic "amerada hess hess" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


21

Charting the TeV Milky Way: H.E.S.S. Galactic plane survey maps, catalog and source populations  

E-Print Network (OSTI)

Very-high-energy (VHE, E>100 GeV) gamma-rays provide a unique view of the non-thermal universe, tracing the most violent and energetic phenomena at work inside our Galaxy and beyond. The latest results of the H.E.S.S. Galactic Plane Survey (HGPS) undertaken by the High Energy Stereoscopic System (H.E.S.S.), an array of four imaging atmospheric Cherenkov telescopes located in Namibia, are described here. The HGPS aims at the detection of cosmic accelerators with environments suitable for the production of photons at the highest energies and has led to the discovery of an unexpectedly large and diverse population of over 60 sources of TeV gamma rays within its current range of l = 250 to 65 degrees in longitude and |b|<3.5 degrees in latitude. The data set of the HGPS comprises 2800 hours of high-quality data, taken in the years 2004 to 2013. The sensitivity for the detection of point-like sources, assuming a power-law spectrum with a spectral index of 2.3 at a statistical significance of 5 sigma, is now at ...

Carrigan, S; Chaves, R C G; Deil, C; Gast, H

2013-01-01T23:59:59.000Z

22

H.E.S.S. upper limit on the very high energy gamma-ray emission from the globular cluster 47 Tucanae  

E-Print Network (OSTI)

Observations of the globular cluster 47 Tucanae (NGC 104), which contains at least 23 millisecond pulsars, were performed with the H.E.S.S. telescope system. The observations lead to an upper limit of F(E>800 GeV) conversion efficiency of spin-down power to gamma-ray photons or to relativistic leptons.

Aharonian, F

2009-01-01T23:59:59.000Z

23

On the Origin of TeV Gamma-ray Emission from HESS J1834-087  

E-Print Network (OSTI)

We present an X-ray study of the field containing the extended TeV source HESS J1834-087 using data obtained with the XMM-Newton telescope. Previously, the coincidence of this source with both the shell-type supernova remnant (SNR) W41 and a giant molecular cloud (GMC) was interpreted as favoring pi^0-decay gamma-rays from interaction of the old SNR with the GMC. Alternatively, the TeV emission has been attributed to inverse Compton scattering from leptons deposited by PSR J1833-0827, a pulsar assumed to have been born in W41 but now located 24' from the center of the SNR (and the TeV source). Instead, we argue for a third possibility, that the TeV emission is powered by a previously unknown pulsar wind nebula located near the center of W41. The candidate pulsar is XMMU J183435.3-084443, a hard X-ray point source that lacks an optical counterpart to R>21 and is coincident with diffuse X-ray emission. The X-rays from both the point source and diffuse feature are evidently non-thermal and highly absorbed. A best fit power-law model yields photon index Gamma ~ 0.2 and Gamma ~ 1.9, for the point source and diffuse emission, respectively, and 2-10 keV flux ~ 5 X 10^(-13) ergs/cm^(2)/s for each. At the measured 4 kpc distance of W41, the observed X-ray luminosity implies an energetic pulsar with Edot ~ 10^(36)d_4^2 ergs/s, which is also sufficient to generate the observed gamma-ray luminosity of 2.7 X 10^(34)d_4^2 ergs/s via inverse Compton scattering.

R. Mukherjee; E. V. Gotthelf; J. P. Halpern

2008-10-09T23:59:59.000Z

24

32173,"AECTRA REFG & MKTG",1,133,"MOTOR GAS, FINISHED UNLEADED...  

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

IL","ILLINOIS",2,260,"CANADA",1,0,0,,,,, 32173,"AGWAY PETRO CORP",1,231,"PROPANENGL",0712,"CHAMPL-RS PT, NY","NEW YORK",1,260,"CANADA",4,0,0,,,,, 32173,"AMERADA HESS...

25

32539,"AECTRA REFG & MKTG",1,133,"MOTOR GAS, FINISHED UNLEADED...  

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

TERM CO","DEER PARK","TX","TEXAS",3 32539,"AGWAY PETRO CORP",1,231,"PROPANENGL",0712,"CHAMPL-RS PT, NY","NEW YORK",1,260,"CANADA",4,0,0,,,,, 32539,"AMERADA HESS...

26

36556,"AECTRA REFG & MKTG",1,152,"MOTOR GAS, OTHER FINISHED"...  

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

36556,"ALPAC MKTG SERV",1,51,"SPECIAL NAPHTHAS",5301,"HOUSTON, TX","TEXAS",3,515,"KOREA, REPUBLIC OF",88,0,0 36556,"AMERADA HESS CORP",1,461,"DISTILLATE, < 0.05% SUL...

27

Upgrading Amerada-type survey clocks for high-temperature geothermal service  

DOE Green Energy (OSTI)

The Amerada type subsurface recording gauges have been used by the oil and gas industry for many years. These mechanical logging instruments are currently used by the growing geothermal industry. As the gauges were designed for service in low-temperature oil and gas wells, a significant number of failures are occurring at elevated geothermal temperatures. The spring-driven mechanical survey clocks appear to be the primary cause of these failures. The clock mechanisms tend to stop or lock-up when exposed to temperatures as high as 300/sup 0/C. A project that was undertaken to upgrade the survey clocks to 300/sup 0/C capability is summarized. The major problems causing clock failure were determined and were rectified by minor modifications and lubrication of the moving parts. Several clocks so modified performed reliably, both during laboratory oven tests and during field tests performed in actual geothermal wells at temperatures up to 330/sup 0/C.

Major, B.H.; Witten, C.L.

1980-04-01T23:59:59.000Z

28

Curriculum Vitae 01/2012 Kenneth S. Suslick  

E-Print Network (OSTI)

-1982 Geologist Amerada Hess Corp. 1971-1973 PROFESSIONAL RECOGNITION Laura J. and L. Douglas Meredith Professor of groundwater flow system, Manlius, NY (Exxon) 25. Dan Ours--Dilation in peat (Consultant) 26. Dave Lipson in peatlands 33. Leskniak, Keri--geochemistry of the Saratoga Springs (Exxon-Mobile) 34. John Bartos

Suslick, Kenneth S.

29

Development of an Efficient Hybrid Energy Storage System (HESS) for Electric and Hybrid Electric Vehicles.  

E-Print Network (OSTI)

??The popularity of the internal combustion engine (ICE) vehicles has contributed to global warming problem and degradation of air quality around the world. Furthermore, the… (more)

Zhuge, Kun

2013-01-01T23:59:59.000Z

30

PowerPoint Presentation  

Gasoline and Diesel Fuel Update (EIA)

/89 /89 4/00 Genealogy of Major U.S. Oil and Gas Producers 2004 2003 2000 5/99 2001 2002 Snyder PennzEnergy BP America a Santa Fe 12/98 BP ARCO Amoco BP America Seagull 8/02 Conoco Conoco Gulf Canada Resources Phillips b SOHIO BP America Devon Mitchell Energy 8/99 10/01 Devon 3/99 7/01 Footnote and source notes are at the bottom of these figures. 8/00 Devon Santa Fe Snyder Devon Devon Ocean Energy Ocean Energy 4/03 ConocoPhillips Anderson Exploration 1/02 Devon 2005 2006 Burlington Resources ConocoPhillips 3/06 8/01 Triton Energy 2000 2002 2003 2004 2001 8/01 Kerr-McGee HS Resources Kerr-McGee El Paso Coastal El Paso Amerada Hess Amerada Hess Exxon ExxonMobil Mobil 11/99 10/99 Anadarko Union Pacific Resources Anadarko Texaco Chevron c Chevron 10/01 El Paso Sonat 7/00 Williams Barrett Resources 8/01 Williams 1/01 8/01 Velvet Exploration

31

A Novel Routing Metric for Environmentally-Powered Sensors With Hybrid  

E-Print Network (OSTI)

an Hybrid Energy Storage System (HESS). An HESS is composed of a supercapacitor (SC) and a rechargeable storage system (HESS), in which a supercapacitor (SC) protects the battery from current spikes, is another

Ingram, Mary Ann

33

Eine Forschungsanstalt des ETH-Bereichs  

E-Print Network (OSTI)

Energiewirtschaft und Rationelle Energieanwendung (IER), Stuttgart, Germany. Lamarque, J.-F., Brasseur, G. P., Hess

Wehrli, Bernhard

34

Gamble and Hess Reply to Williams et al regarding Temperature and Violent Crime in Dallas, Texas: Relationships and Implications of Climate Change  

E-Print Network (OSTI)

by Dallas Police Dept, Texas: Crime rate per 100,000and Violent Crime in Dallas, Texas: Relationships andand Violent Crime in Dallas, Texas: Relationships and

Gamble, Janet L; Hess, Jeremy J

2013-01-01T23:59:59.000Z

35

Gamble and Hess Reply to Williams et al regarding Temperature and Violent Crime in Dallas, Texas: Relationships and Implications of Climate Change  

E-Print Network (OSTI)

EG. Global warming and U.S. crime rates: An appli- cation of6. Federal Bureau of Investigation. Crime reported by DallasPolice Dept, Texas: Crime rate per 100,000 population,

Gamble, Janet L; Hess, Jeremy J

2013-01-01T23:59:59.000Z

36

Gamble and Hess Reply to Williams et al regarding Temperature and Violent Crime in Dallas, Texas: Relationships and Implications of Climate Change  

E-Print Network (OSTI)

et al. Regional Climate Projections. In: Solomon S, Qin D,of regional climate projections for central North America. 5

Gamble, Janet L; Hess, Jeremy J

2013-01-01T23:59:59.000Z

37

Review: Alternative Pathways in Science and Industry. Activism, innovation, and the environment in an era of globalization, by David J. Hess  

E-Print Network (OSTI)

cooperatives), energy (alternative-energy producers), wasteenergy movement (Ch. IV, “Technology and Product-Oriented Movements”). Alternatives

Ferrara, Enzo

2008-01-01T23:59:59.000Z

38

 

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

R. Sandri R. Sandri Aectra Refining & Marketing Age Refining Agvantage FS AIC Ltd Bermuda AIG Trading Air BP Aloha Petroleum Alon USA Amerada Hess American Refining Group Amerigas Propane Amoco Amoco Canada Marketing Anadarko Energy Services Antelope Refining AP Propane Apex Oil Arco Arco Oil & Gas Arctic Slope Regional Corp Ascent Aviation Group Ashland Oil Astra Oil Atlantic Ref. & Marketing Atlantic Richfield Atlantic Trading & Marketing Atofina Petro AvFuel Corp Bakersfield Refinery Basis Petroleum Bayway Refinery Bear Stearns Berkshire Energy Management Big West of California LLC Big West Oil Black Elk Refining Blue Dolphin Energy Co Blueknight Energy Partners Blue Ribbon Energy BP Amoco BP Canada Energy Marketing BP Marine BP North America Petroleum BP Oil BP Products North America

39

Contact Us - U.S. Energy Information Administration (EIA) - U...  

Gasoline and Diesel Fuel Update (EIA)

Diesel Prices Timothy Hess 202-586-4212 timothy.hess@eia.gov Domestic Crude Oil First Purchase Report Dave Gatton 202-586-5995 david.gatton@eia.gov Exports Jennifer...

40

Aerogel Impregnated Polyurethane Piping and Duct Insulation  

NLE Websites -- All DOE Office Websites (Extended Search)

Aerogel Impregnated Polyurethane Piping and Duct Insulation David M. Hess InnoSense LLC david.hess@innosense.us, 310-530-2011 April 4, 2013 2 | Building Technologies Office...

Note: This page contains sample records for the topic "amerada hess hess" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


41

PASSIVE DETECTORS  

E-Print Network (OSTI)

flying at 41,000 ft, geomagnetic latitude 20°N, for variousof Hess et al. (x » geomagnetic latitude) [Armstrong et al.

Thomas, R.H.

2010-01-01T23:59:59.000Z

42

Abbott, Joshua  

NLE Websites -- All DOE Office Websites (Extended Search)

Heroux, Katie Savannah River National Laboratory Herron, Jeffrey A. U. Wisconsin Hess, Dennis Georgia Tech Hianik, Tibor Comenius U. Bratislava Hickner, Michael Pennsylvania...

43

Instrument Schedule for dcs  

Science Conference Proceedings (OSTI)

... Jun 16 2005, 4, 5468, Ammonia borane on DCS, Jacques* Stowe*, Hess and Autrey Daemen, Smith College Pacific Northwest NL LANL, Top-loading ...

44

EMSL: Publications - Workshop Reports  

NLE Websites -- All DOE Office Websites (Extended Search)

Belowground Carbon Cycling Processes at the Molecular Scale. Hess N, Brown G. 2013. PNNL-22919, Environmental Molecular Sciences Laboratory, Richland, WA. EMSL Science Theme...

45

Equatorial Guinea - Energy Information Administration  

U.S. Energy Information Administration (EIA)

ExxonMobil Hess Marathon Oil Ministry of Mines, Industry and Energy - Equatorial Guinea Noble Energy Tullow PA Resources Sources African Energy Intelligence

46

High Energy Cosmic Rays  

E-Print Network (OSTI)

.Hebbeker Radiation Exposure of Humans Natural sources: ~ 1 m Sv / year ~ 1 m Gy / year ~ 0,1 J / year Technical sources: ~ 1 m Sv / Jahr ~ natural exposure Air (Radon) internal radioactivity (K-40) cosmics Increased of Cosmic Radiation Nobel 1936 1912 Viktor Hess 1912 #12;T.Hebbeker Electrometer Measurements V. Hess

Hebbeker, Thomas

47

Discovery of two candidate pulsar wind nebulae in very-high-energy gamma rays  

E-Print Network (OSTI)

We present the discovery of two very-high-energy gamma-ray sources in an ongoing systematic search for emission above 100 GeV from pulsar wind nebulae in survey data from the H.E.S.S. telescope array. Imaging Atmospheric Cherenkov Telescopes are ideal tools for searching for extended emission from pulsar wind nebulae in the very-high-energy regime. H.E.S.S., with its large field of view of 5 degrees and high sensitivity, gives new prospects for the search for these objects. An ongoing systematic search for very-high-energy emission from energetic pulsars over the region of the Galactic plane between -60 degrees wind nebulae, HESS J1718-385 and HESS J1809-193. H.E.S.S. has proven to be a suitable instrument for pulsar wind nebula searches.

H. E. S. S. Collaboration; :; F. Aharonian

2007-05-11T23:59:59.000Z

48

"For Future Generations": Transculturation and the Totem Parks of the New Deal, 1938-1942  

E-Print Network (OSTI)

1967. Hesse, Karen. Aleutian Sparow. New York: Margaret K.a Japanese invasion of the Aleutian islands. 69 The parksJapanese invasion of the Aleutian Islands. 4 A photograph of

Moore, Emily Lehua

2012-01-01T23:59:59.000Z

49

The New Suburbs: Evolving travel behavior, the built environment, and subway investments in Mexico City  

E-Print Network (OSTI)

analysis of built environment characteristics on householdTravel and the Built Environment -- A Meta-Analysis. Journalnon-work travel. Built Environment, 18(4), 253–267. Hess, D.

Guerra, Erick

2013-01-01T23:59:59.000Z

50

Temperature and Violent Crime in Dallas, Texas: Relationships and Implications of Climate Change  

E-Print Network (OSTI)

Violent Crime in Dallas, Texas Gamble and Hess 29. McCullaghand Violent Crime in Dallas, Texas: Relationships andviolent crime in Dallas, Texas from 1993–1999. Methods: We

Gamble, Janet L; Hess, Jeremy J

2012-01-01T23:59:59.000Z

51

Respond to the article | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

the form below to submit a question or comment to Michael Hess about the article LabChat: What is Dark Energy? Oct 25 at 2pm ET. Your response * Your email (optional) Send message...

52

Markets & Finance - Analysis & Projections - U.S. Energy ...  

U.S. Energy Information Administration (EIA)

On July 27, 2010, Hess Corporation announced that it had agreed to acquire American Oil & Gas, Inc. in a stock-only transaction worth as much as $488 million ...

53

EMSL 3rd Quarter Highlights  

NLE Websites -- All DOE Office Websites (Extended Search)

M Bliss, and JE Jaffe. 2009, "Preferential Orientation of Te Precipitates in Melt-Grown CZT." Journal of Crystal Growth 311(9):2641 - 47. 10.1016j.jcrysgro.2009.03.002 Hess, NJ,...

54

The Rise and Fall of the Dream Schools: Equity and Local Politics in the San Francisco Unified School District  

E-Print Network (OSTI)

Richard  F.  and  McLaughlin,  Milbrey  W.  (1988).  the  plan  (Elmore  and  McLaughlin,  1988;  Hess,  1999;  1996;  Elmore  and  McLaughlin,  1988;  Darling-­?Hammond,  

Livingston, Matthew Merritt

2011-01-01T23:59:59.000Z

55

Floating Cars  

E-Print Network (OSTI)

land- scape of destroyed cars provides a stark illustrationTHE ACCESS ALMANAC Floating Cars BY DANIEL BALDWIN HESS S Uof the excessive number of cars in the United States, where

Hess, Daniel Baldwin

2006-01-01T23:59:59.000Z

56

Aerogel Impregnated Polyurethane Piping and Duct Insulation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Aerogel Impregnated Polyurethane Aerogel Impregnated Polyurethane Piping and Duct Insulation David M. Hess InnoSense LLC david.hess@innosense.us, 310-530-2011 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Problem Statement: Develop an efficient insulation system that will adhere to housing duct work and pipe structures while conforming to complex geometries. New insulations must increase the R-value of existing materials and be easy to apply or retrofit to existing structures.

57

Diffuse TeV Emission at the Galactic Centre  

E-Print Network (OSTI)

The High-Energy Stereoscopic System (HESS) has detected intense diffuse TeV emission correlated with the distribution of molecular gas along the galactic ridge at the centre of our Galaxy. Earlier HESS observations of this region had already revealed the presence of several point sources at these energies, one of them (HESS J1745-290) coincident with the supermassive black hole Sagittarius A*. It is still not entirely clear what the origin of the TeV emission is, nor even whether it is due to hadronic or leptonic interactions. It is reasonable to suppose, however, that at least for the diffuse emission, the tight correlation of the intensity distribution with the molecular gas indicates a pionic-decay process involving relativistic protons. In this paper, we explore the possible source(s) of energetic hadrons at the galactic centre, and their propagation through a turbulent medium. We conclude that though Sagittarius A* itself may be the source of cosmic rays producing the emission in HESS J1745-290, it cannot be responsible for the diffuse emission farther out. A distribution of point sources, such as pulsar wind nebulae dispersed along the galactic plane, similarly do not produce a TeV emission profile consistent with the HESS map. We conclude that only a relativistic proton distribution accelerated throughout the inter-cloud medium can account for the TeV emission profile measured with HESS.

Elizabeth Wommer; Fulvio Melia; Marco Fatuzzo

2008-04-18T23:59:59.000Z

58

Argonne Chemical Sciences & Engineering - Nuclear & Environmental Processes  

NLE Websites -- All DOE Office Websites (Extended Search)

HESS HESS * Members * Publications * Overview * Recent Research Results Nuclear & Environmental Processes Home Heavy Element and Separations Science (HESS) Three dimensional reconstruction of the structure of a plutonium-containing protein in solution from small angle X-ray scattering (SAXS) data. Three-dimensional reconstruction of the structure of a plutonium-containing protein in solution from small-angle X-ray scattering (SAXS) data. Except for ultra-trace amounts of neptunium (Np) and plutonium (Pu) naturally generated by neutrons in uranium ores, all of the elements heavier than uranium (with atomic number 92) found in the geosphere are man made. The study of their chemistries began with the synthetic production of Np by Edwin McMillan and Philip H. Abelson in 1940. Since that time, much

59

Energy Blog | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

15, 2011 15, 2011 This Month's Feature on .EDUconnections: University of Wisconsin-Madison UW-Madison ranks as one of the most prolific research universities in the world April 15, 2011 Taking Smart Grid Technology Out of the Lab and Into the Marketplace Find out how this partnership will take early stage technologies out of the lab and test them to see if they can revolutionize the way we use and store electricity. April 14, 2011 Nancy Hess | Photo Courtesy of Pacific Northwest National Lab (PNNL) 10 Questions for a Spectroscopy Expert: Nancy Hess Dr. Hess is using her expertise in molecular level spectroscopy to protect water supplies and advance carbon capture and sequestration technologies. And find out how the Apollo missions, Jacques Cousteau and the Krebs cycle

60

Decathletes Demonstrate Affordable Solar Housing | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Decathletes Demonstrate Affordable Solar Housing Decathletes Demonstrate Affordable Solar Housing Decathletes Demonstrate Affordable Solar Housing September 27, 2011 - 3:54pm Addthis Parsons The New School for Design and Stevens Institute of Technology tied with Purdue University's INhome to win the Affordability Contest at the 2011 Solar Decathlon by building Empowerhouse for less than $230,000. | Courtesy of Empowerhouse. Parsons The New School for Design and Stevens Institute of Technology tied with Purdue University's INhome to win the Affordability Contest at the 2011 Solar Decathlon by building Empowerhouse for less than $230,000. | Courtesy of Empowerhouse. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs

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61

Gamma-rays from PSR B1259 -63  

E-Print Network (OSTI)

The high-energy gamma-ray emission discovered using the H.E.S.S. telescopes from the binary system PSR B1259 -63, is modelled using an extension of the approach that successfully predicted it. We find that the simultaneous INTEGRAL and H.E.S.S. data permit both a model with dominant radiative losses, high pulsar wind Lorentz factor and modest efficiency as well as one with dominant adiabatic losses, a slower wind and higher efficiency. Additional, simultaneous, X-ray and TeV data sets are needed to lift this degeneracy.

J. G. Kirk; Lewis Ball; S. Johnston

2005-09-30T23:59:59.000Z

62

egi.utah.edu | EGI ... the science to find energy EGIDirector@egi.utah.edu  

E-Print Network (OSTI)

-McMoran Oil & Gas GDF Suez Greenshale Energy Hess Hunt Oil Inpex Corporation Japex JOGMEC KNOC Kosmos Energy Professor Addax Petroleum Afren Africa Oil Anadarko Apache AWE Bashneft Beach Energy BG Group BHP Billiton BP Cairn India Casa Exploration Chevron Cobalt International ConocoPhillips Delonex Energy Devon DNO

63

Nevada Bureau of Mines and Geology  

E-Print Network (OSTI)

are included. Metals Industrial Minerals Oil and Gas Geothermal Exploration Development Mining Processing This report, twentieth of an annual series, describes 1998 mineral, oil and gas, and geothermal activities by Ronald H. Hess 45 Oil and Gas by David A. Davis 52 Directory of Mining and Milling Operations 1999 #12

Tingley, Joseph V.

64

PLEASE SCROLL DOWN FOR ARTICLE This article was downloaded by: [George Mason University  

E-Print Network (OSTI)

Assemblages, NUREG/CR-6708, U. S. Nuclear Regulatory Commission, Washington, D.C., 214 pp. Davis, J.A., Hess, Colorado, Report NUREG CR-6820, U. S. Nuclear Regulatory Commission, Rockville, MD, 223 pp. Fuller, C. C Facilities, Report NUREG CR-6870, U. S. Nuclear Regulatory Commission, Rockville, MD, 111 pp. T. E. Payne, J

Parasuraman, Raja

65

Temperature dependence of the dielectric response of lithium niobate  

E-Print Network (OSTI)

Temperature dependence of the dielectric response of lithium niobate D. Xue, K. Betzler*, H. Hesse The dielectric response of lithium niobate is quantitatively calculated for different temperatures. Using of lithium niobate at 1.064 mm increases remarkably with increasing temperature. q 2001 Elsevier Science Ltd

Osnabrück, Universität

66

Free loop spaces in topology and  

E-Print Network (OSTI)

Free loop spaces in topology and physics Kathryn Hess What is the space of free loops? Enumeration of geodesics Hochschild and cyclic homology Homological conformal field theories Free loop spaces in topology Meeting of the Edinburgh Mathematical Society Glasgow, 14 November 2008 #12;Free loop spaces in topology

Thévenaz, Jacques

67

Hardware architecture for pattern recognition in gamma-ray experiment  

Science Conference Proceedings (OSTI)

The HESS project has been running successfully for seven years. In order to take into account the sensitivity increase of the entire project in its second phase, a new trigger scheme is proposed. This trigger is based on a neural system that extracts ...

Sonia Khatchadourian; Jean-Christophe Prévotet; Lounis Kessal

2009-01-01T23:59:59.000Z

68

TeV Dark Matter detection by Atmospheric Cerenkov Telescopes  

E-Print Network (OSTI)

Ground based Atmospheric Cerenkov Telescopes have recently unveiled a TeV gamma-ray signal from the direction of the Galactic Centre. We examine whether these gamma-rays, observed by the VERITAS, CANGAROO-II and HESS collaborations, may arise from annihilations of dark matter particles. Emission from nearby dwarf spheroidals, such as Sagittarius, could provide a test of this scenario.

Francesc Ferrer

2005-05-19T23:59:59.000Z

69

THE GRADUATES The Commencement program is a roster of candidates, not an official list of graduates. Appropriate degrees and honors  

E-Print Network (OSTI)

, Biology Brian David Wilt (also BS), German Benjamin Paul Winter, English Jason Shing-Yan Wong, Music, Accounting Brian Decker, Criminal Justice + Elizabeth Mary Deeken, Biology Victor Luigino DeMarco, Health Cardin Henderson, Political Science Patrick Carnell Hess, Psychology John Denton Hitson, Linguistics

Gering, Jon C.

70

REANALYSIS OF DATA TAKEN BY THE CANGAROO 3.8 METER IMAGING ATMOSPHERIC CHERENKOV TELESCOPE: PSR B1706-44, SN 1006, AND VELA  

SciTech Connect

We have reanalyzed data from observations of PSR B1706-44, SN 1006, and the Vela pulsar region made with the CANGAROO 3.8 m Imaging Atmospheric Cherenkov Telescope between 1993 and 1998 in response to the results reported for these sources by the H.E.S.S. Collaboration. Although detections of TeV gamma-ray emission from these sources were claimed by CANGAROO more than 10 years ago, upper limits to the TeV gamma-ray signals from PSR B1706-44 and SN 1006 derived by H.E.S.S. are about an order of magnitude lower. The H.E.S.S. group detected strong diffuse TeV gamma-ray emission from Vela but with a morphology differing from the CANGAROO result. In our reanalysis, in which gamma-ray selection criteria have been determined exclusively using gamma-ray simulations and OFF-source data as background samples, no significant TeV gamma-ray signals have been detected from compact regions around PSR B1706-44 or within the northeast rim of SN 1006. The upper limits to the integral gamma-ray fluxes at the 95% confidence level have been estimated for the 1993 data of PSR B1706-44 to be F(>3.2 {+-} 1.6 TeV) < 8.03 x 10{sup -13} photons cm{sup -2} s{sup -1}, for the 1996 and 1997 data of SN 1006 to be F(>3.0 {+-} 1.5 TeV) < 1.20 x 10{sup -12} photons cm{sup -2} s{sup -1} and F(>1.8 {+-} 0.9 TeV) < 1.96 x 10{sup -12} photons cm{sup -2} s{sup -1}, respectively. We discuss reasons why the original analyses gave the source detections. The reanalysis did result in a TeV gamma-ray signal from the Vela pulsar region at the 4.5{sigma} level using 1993, 1994, and 1995 data. The excess was located at the same position, 0.{sup 0}13 to the southeast of the Vela pulsar, as that reported in the original analysis. We have investigated the effect of the acceptance distribution in the field of view of the 3.8 m telescope, which rapidly decreases toward the edge of the field of the camera, on the detected gamma-ray morphology. The expected excess distribution for the 3.8 m telescope has been obtained by reweighting the distribution of HESS J0835-455 measured by H.E.S.S. with the acceptance of the 3.8 m telescope. The result is morphologically comparable to the CANGAROO excess distribution, although the profile of the acceptance-reweighted H.E.S.S. distribution is more diffuse than that of CANGAROO. The integral gamma-ray flux from HESS J0835-455 has been estimated for the same region as defined by H.E.S.S. from the 1993-1995 data of CANGAROO to be F(>4.0 {+-} 1.6 TeV) = (3.28 {+-} 0.92) x 10{sup -12} photons cm{sup -2} s{sup -1}, which is statistically consistent with the integral flux obtained by H.E.S.S.

Yoshikoshi, T.; Mori, M. [Institute for Cosmic Ray Research, University of Tokyo, Kashiwa, Chiba 277-8582 (Japan); Edwards, P. G. [Narrabri Observatory, Australia Telescope National Facility, CSIRO, Narrabri, NSW 2390 (Australia); Gunji, S. [Department of Physics, Yamagata University, Yamagata, Yamagata 990-8560 (Japan); Hara, S. [Ibaraki Prefectural University of Health Sciences, Ami, Ibaraki 300-0394 (Japan); Hara, T.; Naito, T. [Faculty of Management Information, Yamanashi Gakuin University, Kofu, Yamanashi 400-8575 (Japan); Kawachi, A.; Nishijima, K. [Department of Physics, Tokai University, Hiratsuka, Kanagawa 259-1292 (Japan); Mizumoto, Y. [National Astronomical Observatory of Japan, Mitaka, Tokyo 181-8588 (Japan); Tanimori, T. [Department of Physics, Kyoto University, Sakyo-ku, Kyoto 606-8502 (Japan); Thornton, G. J. [School of Chemistry and Physics, University of Adelaide, SA 5005 (Australia); Yoshida, T. [Faculty of Science, Ibaraki University, Mito, Ibaraki 310-8512 (Japan)], E-mail: tyoshiko@icrr.u-tokyo.ac.jp

2009-09-01T23:59:59.000Z

71

Tracking Santa With Our Eyes in the Sky | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tracking Santa With Our Eyes in the Sky Tracking Santa With Our Eyes in the Sky Tracking Santa With Our Eyes in the Sky December 24, 2013 - 10:00am Addthis The Energy Department's Los Alamos National Lab is tracking Santa Claus as he circles the globe the night before Christmas. The Energy Department's Los Alamos National Lab is tracking Santa Claus as he circles the globe the night before Christmas. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs Every year since 1998, the Energy Department's Los Alamos National Lab has been using state-of-the-art technology to track Santa Claus as he circles the globe the night before Christmas. You'll be able to monitor St. Nick's journey here starting at 6 a.m. ET on Christmas Eve. Since Santa doesn't file his flight path with the Federal Aviation

72

Lab Breakthrough: ADM Leads to Petroleum-Free Glycol Production Facility |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Lab Breakthrough: ADM Leads to Petroleum-Free Glycol Production Lab Breakthrough: ADM Leads to Petroleum-Free Glycol Production Facility Lab Breakthrough: ADM Leads to Petroleum-Free Glycol Production Facility May 22, 2012 - 9:38am Addthis Pacific Northwest National Laboratory discovered a viable way to deliver propylene glycol from feedstock, including glycerin byproducts. ADM licensed that technology and in 2010 completed construction and commissioning of its full-scale production facility for the sole purpose of commercializing the PGRS process. View the entire Lab Breakthrough playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What does this project do? Created a renewable alternative to petroleum-based propylene glycol. Primarily, it found a way to do the chemistry efficiently and

73

First-Hand Recollections of the First Self-Sustaining Chain Reaction |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

First-Hand Recollections of the First Self-Sustaining Chain First-Hand Recollections of the First Self-Sustaining Chain Reaction First-Hand Recollections of the First Self-Sustaining Chain Reaction August 3, 2012 - 4:53pm Addthis On December 2, 1942, 49 scientists, led by Enrico Fermi, made history when Chicago Pile 1 (CP-1) went critical and produced the world's first self-sustaining, controlled nuclear chain reaction. Seventy years later, two of the last surviving CP-1 pioneers, Harold Agnew and Warren Nyer, recall that historic day. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How were the natives? A small graphite block from the pile is on display at the Museum of Science and Industry in Chicago; another can be seen at the Bradbury Science Museum in Los Alamos, NM.

74

After 15 Years, A New Top Earning Patent At Ames Lab | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

After 15 Years, A New Top Earning Patent At Ames Lab After 15 Years, A New Top Earning Patent At Ames Lab After 15 Years, A New Top Earning Patent At Ames Lab January 20, 2012 - 11:32am Addthis Ames Laboratory senior metallurgist Iver Anderson explains the importance of lead-free solder in taking hazardous lead out of the environment by eliminating it from discarded computers and electronics that wind up in landfills. Anderson led a team that developed a tin-silver-copper replacement for traditional lead solder that has been adopted by more than 50 companies worldwide and has generated more than $39 million in licensing income. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What are the key facts? As of the end of June 2011, lead-free solder generated $38.9 million

75

How to Turn a Jaguar into a Titan | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

How to Turn a Jaguar into a Titan How to Turn a Jaguar into a Titan How to Turn a Jaguar into a Titan November 27, 2012 - 3:02pm Addthis Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What powers Titan? 299,008 processor cores 710 terabytes of memory 8.2 MW power usage How to Turn a Jaguar into a Titan It takes more than the side mural to turn the fastest supercomputer dedicated to Open Science into the fastest computer in the world. The same room and cabinets that held supercomputer Jaguar, now holds Titan. Storified by Energy Department · Tue, Nov 27 2012 12:07:29 How did Oak Ridge National Labs turn this world-class supercomputer into an even faster, more efficient supercomputer? Wikimedia It took a little more than changing the sticker. Wikimedia

76

Recovery Act Energy Jobs Bring New Era of Opportunity | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Jobs Bring New Era of Opportunity Energy Jobs Bring New Era of Opportunity Recovery Act Energy Jobs Bring New Era of Opportunity September 22, 2011 - 12:47pm Addthis Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs Hundreds of thousands of people found work in the past few years thanks to Recovery Act and Energy Department programs designed to stimulate the economy while creating new power sources, conserving resources and aligning the nation to once again lead the global energy economy. The Energy Department has several tools at its disposal to put Americans to work while pursuing long-term national energy goals like spurring the development of electric vehicles, updating the national power grid, and making commercial buildings more efficient. Tax credits directly fund,

77

Registration Now Open for 2013 Science Bowl Teams | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

36am 36am Addthis The National Science Bowl finals take place each year in the National Building Museum. The top regional teams come to Washington, D.C., in the spring as they as they advance to National Finals. Registration is now open at the NSB website. | Photo by Dennis Brack, Energy Department Office of Science The National Science Bowl finals take place each year in the National Building Museum. The top regional teams come to Washington, D.C., in the spring as they as they advance to National Finals. Registration is now open at the NSB website. | Photo by Dennis Brack, Energy Department Office of Science Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs

78

Breakthrough: MFiX: Building Industry-Scale Machines in a Virtual World |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Breakthrough: MFiX: Building Industry-Scale Machines in a Virtual Breakthrough: MFiX: Building Industry-Scale Machines in a Virtual World Breakthrough: MFiX: Building Industry-Scale Machines in a Virtual World July 11, 2012 - 1:34pm Addthis Mfix is open-source, virtual modeling software that makes coal gasification processes more efficient than was ever possible through lab tests. Modeling reduces the cost and time of testing and building actual systems and ultimately results in lower costs, improved power plant efficiency, and new energy systems that meet or even exceed current or proposed environmental regulations. View the entire Lab Breakthrough playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What is the future of MFiX? Ultimately, we see MFiX being used to solve industrial-scale

79

DOE Announces Award of a Contract to Repurchase Heating Oil for the  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

DOE Announces Award of a Contract to Repurchase Heating Oil for the DOE Announces Award of a Contract to Repurchase Heating Oil for the Northeast Home Heating Oil Reserve DOE Announces Award of a Contract to Repurchase Heating Oil for the Northeast Home Heating Oil Reserve July 23, 2008 - 2:15pm Addthis WASHINGTON, DC - The U.S. Department of Energy today announced the award of a contract to Hess Corporation for the delivery of approximately 808,625 gallons (approximately 19,250 barrels) of home heating oil for the Northeast Home Heating Oil Reserve (NEHHOR). The purchased oil is expected to be delivered to the Hess First Reserve terminal at Perth Amboy, NJ in New York Harbor later this week. The award resulted from a solicitation issued on June 23, 2008, to repurchase heating oil using $3 million in funds appropriated after the

80

Wrap Up: 2013 ARPA-E Energy Innovation Summit | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Wrap Up: 2013 ARPA-E Energy Innovation Summit Wrap Up: 2013 ARPA-E Energy Innovation Summit Wrap Up: 2013 ARPA-E Energy Innovation Summit March 1, 2013 - 4:05pm Addthis Elon Musk, CEO of Tesla Motors, and Secretary Chu during a fireside chat at the 2013 ARPA-E Energy Innovation Summit | Photo by Sarah Gerrity, Energy Department. Elon Musk, CEO of Tesla Motors, and Secretary Chu during a fireside chat at the 2013 ARPA-E Energy Innovation Summit | Photo by Sarah Gerrity, Energy Department. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What does this project do? Learn more about ARPA-E on their topic page. View the photo gallery at energy.gov/photos. The 2013 ARPA-E Energy Innovation Summit concluded Wednesday with a final

Note: This page contains sample records for the topic "amerada hess hess" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


81

Lab Breakthrough: Record-Setting Cavities | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Record-Setting Cavities Record-Setting Cavities Lab Breakthrough: Record-Setting Cavities April 24, 2012 - 2:34pm Addthis At Jefferson Lab, researchers have fabricated a niobium cavity for particle accelerators that has set a world record for energy efficiency. Gianluigi "Gigi" Ciovati, a superconducting radiofrequency scientist, discusses how scientists at the Jefferson Lab developed the technology, and how it will be used to impact the energy industry. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What does this project do? With more powerful accelerators, researchers can someday build new power plants that produce little or no nuclear waste. At Jefferson Lab, researchers have fabricated a niobium cavity for particle accelerators that has set a world record for energy efficiency. Gianluigi

82

Recovery Act Energy Jobs Bring New Era of Opportunity | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Recovery Act Energy Jobs Bring New Era of Opportunity Recovery Act Energy Jobs Bring New Era of Opportunity Recovery Act Energy Jobs Bring New Era of Opportunity September 22, 2011 - 12:47pm Addthis Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs Hundreds of thousands of people found work in the past few years thanks to Recovery Act and Energy Department programs designed to stimulate the economy while creating new power sources, conserving resources and aligning the nation to once again lead the global energy economy. The Energy Department has several tools at its disposal to put Americans to work while pursuing long-term national energy goals like spurring the development of electric vehicles, updating the national power grid, and making commercial buildings more efficient. Tax credits directly fund,

83

Levitation as a Tool in Argonne Lab | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Levitation as a Tool in Argonne Lab Levitation as a Tool in Argonne Lab Levitation as a Tool in Argonne Lab March 19, 2013 - 4:54pm Addthis Scientists at Argonne National Laboratory have discovered a way to use sound waves to levitate individual droplets of solutions containing different pharmaceuticals. Watch all Argonne videos on their video page. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What are the key facts? Droplets are suspended in air between two sets of speakers, which generate sound waves at frequencies slightly above the audible range -- about 22 kilohertz. Back in September, Argonne National Lab posted the YouTube video "Acoustic Levitation" featuring physicist Chris Benmore suspending droplets of liquid between two speakers. It almost immediately went viral garnering

84

Are You Smarter Than a Middle Schooler? | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Are You Smarter Than a Middle Schooler? Are You Smarter Than a Middle Schooler? Are You Smarter Than a Middle Schooler? April 25, 2012 - 10:12am Addthis Hopkins Junior High School Team members, from Fremont, Calif., Raghu Dhara and Krishna Bharathal compete at the 2010 National Science Bowl for middle school students in Washington D.C. | Photo courtesy of John Troha, National Science Bowl. Hopkins Junior High School Team members, from Fremont, Calif., Raghu Dhara and Krishna Bharathal compete at the 2010 National Science Bowl for middle school students in Washington D.C. | Photo courtesy of John Troha, National Science Bowl. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How can I participate? We will be livetweeting the round-robin tournaments from @energy on

85

Commercial Ethanol Turns Dross to Dollars for Rural Iowans | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Commercial Ethanol Turns Dross to Dollars for Rural Iowans Commercial Ethanol Turns Dross to Dollars for Rural Iowans Commercial Ethanol Turns Dross to Dollars for Rural Iowans September 28, 2011 - 3:23pm Addthis American farmers harvest 80 million acres of corn each autumn. The corn stover usually left on a hewn field can be processed into a renewable transportation fuel called bioethanol. | Image courtesy of POET American farmers harvest 80 million acres of corn each autumn. The corn stover usually left on a hewn field can be processed into a renewable transportation fuel called bioethanol. | Image courtesy of POET Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What are the key facts? Farmers, truck operators, farm equipment distributors and agricultural laborers all benefit from the emerging bioethanol market in

86

NNSA Highly Enriched Uranium Removal Featured on The Rachel Maddow Show |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Highly Enriched Uranium Removal Featured on The Rachel Maddow Highly Enriched Uranium Removal Featured on The Rachel Maddow Show NNSA Highly Enriched Uranium Removal Featured on The Rachel Maddow Show March 22, 2012 - 11:37am Addthis NNSA Administrator Thomas D’Agostino appeared live last night to break the news with Rachel Maddow that all remaining weapons-usable material has been successfully removed from Mexico. | Photo courtesy of the NNSA. NNSA Administrator Thomas D'Agostino appeared live last night to break the news with Rachel Maddow that all remaining weapons-usable material has been successfully removed from Mexico. | Photo courtesy of the NNSA. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What's the difference between HEU and LEU? Highly enriched uranium (HEU) has a greater than 20 percent

87

Supercomputing Our Way to a Clean Energy Future | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Supercomputing Our Way to a Clean Energy Future Supercomputing Our Way to a Clean Energy Future Supercomputing Our Way to a Clean Energy Future August 6, 2012 - 2:34pm Addthis Using computer modeling technology from Lawrence Livermore National Laboratory (LLNL), truck manufacturer Navistar is able to improve vehicle fuel efficiency and durability without the expense of wind tunnel testing. | Photo courtesy of LLNL Livermore Valley Open Campus. Using computer modeling technology from Lawrence Livermore National Laboratory (LLNL), truck manufacturer Navistar is able to improve vehicle fuel efficiency and durability without the expense of wind tunnel testing. | Photo courtesy of LLNL Livermore Valley Open Campus. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs

88

Transphorm Takes Energy Efficiency to a New Level | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Transphorm Takes Energy Efficiency to a New Level Transphorm Takes Energy Efficiency to a New Level Transphorm Takes Energy Efficiency to a New Level February 24, 2012 - 1:20pm Addthis Transphorm's gallium nitride semiconductors could be used to make operating photovoltaic panels, like these on the roof of the Research Support Facility, motor drives and transistors more energy efficient. | Photo courtesy of National Renewable Energy Laboratory. Transphorm's gallium nitride semiconductors could be used to make operating photovoltaic panels, like these on the roof of the Research Support Facility, motor drives and transistors more energy efficient. | Photo courtesy of National Renewable Energy Laboratory. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What are the key facts?

89

Ask the Directors: Secretary Chu to Host Live Chat on the Energy Innovation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ask the Directors: Secretary Chu to Host Live Chat on the Energy Ask the Directors: Secretary Chu to Host Live Chat on the Energy Innovation Hubs Ask the Directors: Secretary Chu to Host Live Chat on the Energy Innovation Hubs March 5, 2012 - 12:32pm Addthis Secretary Chu is accepting questions on Facebook, Twitter and e-mail for the Energy Innovation Hub directors -- who are working to build better nuclear reactors, obtain fuel from sunlight and design the most energy efficient buildings to date. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How can I participate? Submit your questions on Facebook, Twitter (@energy), or send an e-mail to newmedia@hq.doe.gov, prior to or during the live event. Secretary Chu will host a live, streaming Q&A session with the directors of the Energy Innovation Hubs on Tuesday, March 6, at 2:15 p.m. EST at

90

America's Best Student Start-Up Companies Pitch for Your Vote | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Best Student Start-Up Companies Pitch for Your Vote Best Student Start-Up Companies Pitch for Your Vote America's Best Student Start-Up Companies Pitch for Your Vote May 24, 2012 - 9:03am Addthis After pitching their business plan to panels of judges at the regional semifinal and final, six teams advanced to the national competition for a chance at the cash grand prize. | Energy Department file graphic. After pitching their business plan to panels of judges at the regional semifinal and final, six teams advanced to the national competition for a chance at the cash grand prize. | Energy Department file graphic. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How can I participate? You can select your favorite. UPDATE: Voting closed June 12 at 2 p.m. EDT. NuMat Technologies from

91

Lab Breakthrough: Asteroid Killer Simulation | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Lab Breakthrough: Asteroid Killer Simulation Lab Breakthrough: Asteroid Killer Simulation Lab Breakthrough: Asteroid Killer Simulation July 5, 2012 - 12:07pm Addthis A supercomputer at Los Alamos National Laboratory is helping scientists understand how a nuclear detonation might affect an incoming, Earth-threatening asteroid. View the entire Lab Breakthrough playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What if we find an Earth-bound asteroid? If time is very short (less than a month), than there is probably nothing mankind can do. If our nuclear intercept is far enough away, then these computer simulations show most asteroid fragments will steer clear. Los Alamos National Laboratory's Bob Weaver took some time recently to talk about how his research would help avert a catastrophic asteroid

92

Transformative Battery Technology at the National Labs | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Transformative Battery Technology at the National Labs Transformative Battery Technology at the National Labs Transformative Battery Technology at the National Labs January 17, 2012 - 10:45am Addthis Vince Battaglia leads a behind-the-scenes tour of Berkeley Lab's Batteries for Advanced Transportation Technologies Program where researchers aim to improve batteries upon which the range, efficiency, and power of tomorrow's electric cars will depend. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What are the key facts? Berkeley's Batteries for Advanced Transportation Technologies Program is developing lithium-ion technology to power a vehicle for 300 miles. Lithium-sulfur and lithium-air are "unknown known" technologies for the future of electric vehicle batteries.

93

WATCH LIVE: Talking the Higgs Boson with CERN | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

WATCH LIVE: Talking the Higgs Boson with CERN WATCH LIVE: Talking the Higgs Boson with CERN WATCH LIVE: Talking the Higgs Boson with CERN September 13, 2012 - 2:33pm Addthis WATCH LIVE: Talking the Higgs Boson with CERN Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs Where do I watch? To watch this livestream, go to energy.gov/live. Tune in to a special livestream at energy.gov/live on Friday, Sept. 14 at 10 a.m. ET for a science lecture about the Higgs boson with Joe Incandela, head spokesperson for the CMS experiment at CERN's Large Hadron Collider. Hosted by Secretary of Energy Steven Chu, tune in to the livestream to hear about the research conducted by CERN and the Energy Department. Addthis Related Articles WATCH LIVE: Talking the Higgs Boson with CERN

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Lab Breakthrough: Nanomaterials Discoveries Lead to Possible Cancer  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Lab Breakthrough: Nanomaterials Discoveries Lead to Possible Cancer Lab Breakthrough: Nanomaterials Discoveries Lead to Possible Cancer Treatment Lab Breakthrough: Nanomaterials Discoveries Lead to Possible Cancer Treatment June 4, 2012 - 3:05pm Addthis Argonne nanoscientist Elena Rozhkova is studying ways to enlist nanoparticles to treat brain cancer. This nano-bio technology may eventually provide an alternative form of therapy that targets only cancer cells and does not affect normal living tissue. View the entire Lab Breakthrough playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What is a nano-bio catalyst? A nanoparticle that triggers specific reactions in cells. The particle attaches to unwanted (tumor) cells, and when researchers shine light on them, they kill the cells through oxidation.

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Day 1: Innovation at the 2013 ARPA-E Summit | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Day 1: Innovation at the 2013 ARPA-E Summit Day 1: Innovation at the 2013 ARPA-E Summit Day 1: Innovation at the 2013 ARPA-E Summit February 26, 2013 - 2:48pm Addthis Secretary of Energy Steven Chu speaks at the 2013 ARPA-E Energy Innovation Summit. | Photo by Sarah Gerrity. Secretary of Energy Steven Chu speaks at the 2013 ARPA-E Energy Innovation Summit. | Photo by Sarah Gerrity. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How can I participate? Watch for live event updates at twitter.com/energy. The fourth annual ARPA-E Energy Innovation Summit kicked off yesterday near Washington, D.C. bringing together energy thought leaders, and highlighting technologies with a high potential to change the way we generate, store, use and think about energy. For three days, entrepreneurs, investors and industry thought leaders

96

13 Early-Career Scientists Receive Top Presidential Award | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

13 Early-Career Scientists Receive Top Presidential Award 13 Early-Career Scientists Receive Top Presidential Award 13 Early-Career Scientists Receive Top Presidential Award July 26, 2012 - 12:37pm Addthis The Department awardees are being recognized for their efforts in a variety of fields – from advances in power electronics for the electric grid to innovations in scientific computation to new physics developments. | Photo courtesy of Argonne National Laboratory. The Department awardees are being recognized for their efforts in a variety of fields - from advances in power electronics for the electric grid to innovations in scientific computation to new physics developments. | Photo courtesy of Argonne National Laboratory. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs

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Lab Breakthrough: Fermilab Accelerator Technology | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Fermilab Accelerator Technology Fermilab Accelerator Technology Lab Breakthrough: Fermilab Accelerator Technology May 14, 2012 - 10:51am Addthis At Fermilab, scientists are collaborating with other laboratories and industry to optimize the manufacturing processes for a new type of powerful accelerator that uses superconducting niobium cavities. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs Where are these 30,000 particle accelerators? Most of them in medicine and manufacturing fields. They treat cancer, cure inks on cereal boxes, sterilize medical supplies, create better shrink wrap, spot suspicious cargo, clean up dirty drinking water, and help design drugs. Fermi National Accelerator Laboratory scientist Stuart Henderson took some time discuss the role of particle accelerators in basic science,

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Powering Curiosity: Lab Tech Goes to Mars | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Curiosity: Lab Tech Goes to Mars Curiosity: Lab Tech Goes to Mars Powering Curiosity: Lab Tech Goes to Mars August 6, 2012 - 9:14am Addthis One of the first images taken by NASA's Curiosity rover was taken on the left-rear side of the rover looking directly into the sun. | Photo courtesy of NASA/JPL-Caltech. One of the first images taken by NASA's Curiosity rover was taken on the left-rear side of the rover looking directly into the sun. | Photo courtesy of NASA/JPL-Caltech. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What does this project do? Curiosity will perform 10 experiments over two years to determine whether Mars supports life or has in the past. This morning at 1:31 EDT the Mars rover Curiosity touched down on the Red Planet after a daredevil descent to begin its mission exploring a vast

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Marius Stan Returning to Reddit To Tie Up Loose Ends | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Marius Stan Returning to Reddit To Tie Up Loose Ends Marius Stan Returning to Reddit To Tie Up Loose Ends Marius Stan Returning to Reddit To Tie Up Loose Ends February 22, 2013 - 5:28pm Addthis Marius Stan, computational energy scientist from Argonne National Lab, submits his verification photo as part of an informal question and answer session with Internet users on the Ask Me Anything section of the social website Reddit on February 14, 2013. Marius Stan, computational energy scientist from Argonne National Lab, submits his verification photo as part of an informal question and answer session with Internet users on the Ask Me Anything section of the social website Reddit on February 14, 2013. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What is Reddit? Reddit is a social site where users post content voted "up" or

100

Transformative Battery Technology at the National Labs | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Transformative Battery Technology at the National Labs Transformative Battery Technology at the National Labs Transformative Battery Technology at the National Labs January 17, 2012 - 10:45am Addthis Vince Battaglia leads a behind-the-scenes tour of Berkeley Lab's Batteries for Advanced Transportation Technologies Program where researchers aim to improve batteries upon which the range, efficiency, and power of tomorrow's electric cars will depend. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What are the key facts? Berkeley's Batteries for Advanced Transportation Technologies Program is developing lithium-ion technology to power a vehicle for 300 miles. Lithium-sulfur and lithium-air are "unknown known" technologies for the future of electric vehicle batteries.

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101

Lab Breakthrough: X-ray Laser Captures Atoms and Molecules in Action |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

X-ray Laser Captures Atoms and Molecules in X-ray Laser Captures Atoms and Molecules in Action Lab Breakthrough: X-ray Laser Captures Atoms and Molecules in Action July 18, 2012 - 12:51pm Addthis The Linac Coherent Light Source at SLAC is the world's most powerful X-ray laser, which helps researchers understand the extreme conditions found in the hearts of stars and giant planets guiding research into nuclear fusion, the mechanism that powers the sun. View the entire Lab Breakthrough playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How is the LCLS different? Rather than accelerate particles to collide them, it accelerates particles in a special way to create extremely bright bunches of photons. These pulses are about 10 billion times brighter and one thousand

102

Energy Innovation Hubs: Achieving Our Energy Goals with Science |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Innovation Hubs: Achieving Our Energy Goals with Science Innovation Hubs: Achieving Our Energy Goals with Science Energy Innovation Hubs: Achieving Our Energy Goals with Science March 2, 2012 - 6:44pm Addthis Secretary Chu stops at Oak Ridge National Lab in February 2012 for a quick, nuclear-themed visit that included a tour of the Consortium for Advanced Simulation of Light Water Reactors (CASL) and a stop at the new Manufacturing Demonstration Facility (MDF). | Photo courtesy of Oak Ridge National Lab Secretary Chu stops at Oak Ridge National Lab in February 2012 for a quick, nuclear-themed visit that included a tour of the Consortium for Advanced Simulation of Light Water Reactors (CASL) and a stop at the new Manufacturing Demonstration Facility (MDF). | Photo courtesy of Oak Ridge National Lab Michael Hess Michael Hess

103

Who Will Be America's Next Top Energy Innovator? | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1:31am 1:31am Addthis National Renewable Energy Laboratory scientists found multiple uses for thin film lithium ion conductors - for batteries and for solar cells. | Photo Courtesy of the National Renewable Energy Laboratory National Renewable Energy Laboratory scientists found multiple uses for thin film lithium ion conductors - for batteries and for solar cells. | Photo Courtesy of the National Renewable Energy Laboratory Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs Where can I vote? In January, vote for the companies you think will make the biggest impact energy.gov/topinnovator Who Will Be America's Next Top Energy Innovator? That's up to you to decide. In May, the Energy Department launched the "America's Next Top Energy

104

Lab Breakthrough: Exploring Matter at the Dawn of Time | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Exploring Matter at the Dawn of Time Exploring Matter at the Dawn of Time Lab Breakthrough: Exploring Matter at the Dawn of Time May 9, 2012 - 2:55pm Addthis Physicist Paul Sorensen describes discoveries made at the Relativistic Heavy Ion Collider (RHIC), a particle accelerator at Brookhaven National Laboratory. At RHIC, scientists from around the world study what the universe may have looked like in the first microseconds after its birth, helping us to understand more about why the physical world works the way it does - from the smallest particles to the largest stars. See the other Lab Breakthrough videos on the YouTube playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs "To me, it's like the first steps on the moon." Physicist Paul Sorensen discussing his work with fundamental

105

#LabChat: Science of the Very Fast and Very Small, June 11 at 2 pm EDT |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

#LabChat: Science of the Very Fast and Very Small, June 11 at 2 pm #LabChat: Science of the Very Fast and Very Small, June 11 at 2 pm EDT #LabChat: Science of the Very Fast and Very Small, June 11 at 2 pm EDT June 8, 2012 - 10:17am Addthis Greg Nielson holds a solar cell test prototype with a microscale lens array fastened to it. Together, the cell and lens help create a concentrated photovoltaic unit that when commercialized will revolutionize the way solar energy is collected. | Photo courtesy of Sandia National Lab Greg Nielson holds a solar cell test prototype with a microscale lens array fastened to it. Together, the cell and lens help create a concentrated photovoltaic unit that when commercialized will revolutionize the way solar energy is collected. | Photo courtesy of Sandia National Lab Michael Hess Michael Hess

106

Lab Breakthrough: ADM Leads to Petroleum-Free Glycol Production Facility |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

ADM Leads to Petroleum-Free Glycol Production ADM Leads to Petroleum-Free Glycol Production Facility Lab Breakthrough: ADM Leads to Petroleum-Free Glycol Production Facility May 22, 2012 - 9:38am Addthis Pacific Northwest National Laboratory discovered a viable way to deliver propylene glycol from feedstock, including glycerin byproducts. ADM licensed that technology and in 2010 completed construction and commissioning of its full-scale production facility for the sole purpose of commercializing the PGRS process. View the entire Lab Breakthrough playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What does this project do? Created a renewable alternative to petroleum-based propylene glycol. Primarily, it found a way to do the chemistry efficiently and

107

Tackling Big Data Together | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tackling Big Data Together Tackling Big Data Together Tackling Big Data Together February 21, 2013 - 5:43pm Addthis PNNL's Olympus supercomputer is one of the computational resources that will be used by members of the Northwest Institute for Advanced Computing. Other resources include the University of Washington's Hyak supercomputer and cloud computing. PNNL's Olympus supercomputer is one of the computational resources that will be used by members of the Northwest Institute for Advanced Computing. Other resources include the University of Washington's Hyak supercomputer and cloud computing. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs A powerful coupling: UW's eScience Institute has advanced data-driven discovery, and the university's computational programs in physics, chemistry and astronomy are

108

Energy Innovator Drops Costs for Titanium Metalwork | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Innovator Drops Costs for Titanium Metalwork Innovator Drops Costs for Titanium Metalwork Energy Innovator Drops Costs for Titanium Metalwork March 13, 2012 - 12:42pm Addthis Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What are the key facts? Iowa Powder Atomization Technology is one of 36 companies that licensed technology under an agreement with the National Lab as part of the America's Next Top Energy Innovator program. Titanium is the stuff aircrafts are made of, at least the important parts. It's an obvious material choice for aircraft engines and airframes with its high strength-to-weight ratio and resistance to corrosion. However, shaping the metal into complex shapes can be expensive. Using a heavier, easier-to-craft metal can be just as expensive because adding weight to an

109

#LabChat Recap: The Future of Biofuels | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

The Future of Biofuels The Future of Biofuels #LabChat Recap: The Future of Biofuels September 27, 2012 - 4:51pm Addthis Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs #LabChat: The Future of Biofuels Brian Pfleger, a synthetic biologist and metabolic engineer from the Great Lakes Bioenergy Research Center, stepped into the #LabChat to answer questions about his work developing advanced biofuels. Moderating the #LabChat was John Greenler, director of education and outreach for the center. Storified by Energy Department · Thu, Sep 27 2012 14:48:51 Great Lakes Bioenergy Research Center is one of three Energy Department facilities not only trying to develop the next generation of biofuels, but rather, trying to develop a new generation of biofuels. They are

110

Emissions Technology Gives Company Clean Win as Energy Innovator |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Emissions Technology Gives Company Clean Win as Energy Innovator Emissions Technology Gives Company Clean Win as Energy Innovator Emissions Technology Gives Company Clean Win as Energy Innovator March 7, 2012 - 2:38pm Addthis Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How does this innovation work? A plasma reformer attached to the engine extracts hydrogen from the fuel. The device injects the hydrogen into the combustion process making the fuel burn more completely. A catalyst attached to the tailpipe cleans up 85 percent of remaining emissions. In just a few months, startup company Umpqua Energy will open its first manufacturing facility with 50 new employees producing an emission control system that can potentially reduce the emissions from vehicles by 90 percent. In a significant technological jump, the startup's system is scalable to

111

DOE Completes Sale of Northeast Home Heating Oil Stocks | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Completes Sale of Northeast Home Heating Oil Stocks Completes Sale of Northeast Home Heating Oil Stocks DOE Completes Sale of Northeast Home Heating Oil Stocks February 10, 2011 - 12:00pm Addthis Washington, DC - The U.S. Department of Energy (DOE) today has awarded contracts to four companies who successfully bid for the purchase of 1,000,000 barrels of heating oil from the Northeast Home Heating Oil Reserve storage sites in Groton and New Haven, CT. Hess Groton Terminal, Groton, CT Shell Trading U.S. Company 150,000 barrels Sprague Energy Corp. 100,000 barrels Magellan New Haven Terminal, New Haven, CT Hess Corporation 300,000 barrels Morgan Stanley 450,000 barrels Today's sale was the second held as part of the Department's initiative to convert the 1,984,253 barrel heating oil reserve to cleaner burning

112

America Chooses the Next Top Energy Innovator | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

America Chooses the Next Top Energy Innovator America Chooses the Next Top Energy Innovator America Chooses the Next Top Energy Innovator February 10, 2012 - 1:00pm Addthis The America’s Next Top Energy Innovator Challenge makes inventions and technologies developed at the U.S. Department of Energy’s 17 National Laboratories and the Y-12 National Security Complex available to innovative startups. | Photo courtesy of Lawrence Berkeley National Laboratory. The America's Next Top Energy Innovator Challenge makes inventions and technologies developed at the U.S. Department of Energy's 17 National Laboratories and the Y-12 National Security Complex available to innovative startups. | Photo courtesy of Lawrence Berkeley National Laboratory. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs

113

LiveChat Wed, 11/16, 2 pm ET: Industrial Energy Efficiency | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

11/16, 2 pm ET: Industrial Energy Efficiency 11/16, 2 pm ET: Industrial Energy Efficiency LiveChat Wed, 11/16, 2 pm ET: Industrial Energy Efficiency November 14, 2011 - 1:40pm Addthis Do you have questions or ideas about how the U.S. Department of Energy can contribute to global competitiveness through industrial efficiency? Dr. Kathleen Hogan would like to hear them. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How can I participate? Send an email to Dr. Hogan at newmedia@hq.doe.gov, tweet to @energy with the hashtag #energymatters; or leave a question on Energy's Facebook page. Throughout the last two weeks, we've been highlighting specific examples of industrial and commercial energy efficiency measures - and how they are improving American competitiveness and the economy.

114

Energy Matters: Industrial Energy Efficiency | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Matters: Industrial Energy Efficiency Matters: Industrial Energy Efficiency Energy Matters: Industrial Energy Efficiency November 18, 2011 - 2:33pm Addthis On November 16, 2011, Deputy Assistant Secretary for Energy Efficiency Dr. Kathleen Hogan joined us for a live chat on Energy.gov to discuss the role of industrial energy efficiency in strengthening the American economy. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs On Wednesday, November 16th, Dr. Kathleen Hogan, Deputy Assistant Secretary for Energy Efficiency, discussed industrial energy efficiency on an Energy Matters video livechat. Dr. Hogan answered questions, submitted by industry professionals and the interested public via email, Facebook and Twitter, on how commercial building efficiency, advanced manufacturing, and corporate partnerships can

115

Transphorm Takes Energy Efficiency to a New Level | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Transphorm Takes Energy Efficiency to a New Level Transphorm Takes Energy Efficiency to a New Level Transphorm Takes Energy Efficiency to a New Level February 24, 2012 - 1:20pm Addthis Transphorm's gallium nitride semiconductors could be used to make operating photovoltaic panels, like these on the roof of the Research Support Facility, motor drives and transistors more energy efficient. | Photo courtesy of National Renewable Energy Laboratory. Transphorm's gallium nitride semiconductors could be used to make operating photovoltaic panels, like these on the roof of the Research Support Facility, motor drives and transistors more energy efficient. | Photo courtesy of National Renewable Energy Laboratory. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What are the key facts?

116

Leading the Charge: Tribal Women in Power | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Tribal Women in Power Tribal Women in Power Leading the Charge: Tribal Women in Power October 22, 2012 - 4:19pm Addthis Andrea Alexander, Makah Tribe in Neah Bay (Washington)/Affiliated Tribes of Northwest Indians Andrea Alexander, Makah Tribe in Neah Bay (Washington)/Affiliated Tribes of Northwest Indians Kathy Mayo, Eagle Village in Upper Yukon (Alaska)/Tanana Chiefs Conference Kathy Mayo, Eagle Village in Upper Yukon (Alaska)/Tanana Chiefs Conference Tara Hess-McGeown, Washoe Tribe of Nevada and California/Intertribal Council of Nevada Tara Hess-McGeown, Washoe Tribe of Nevada and California/Intertribal Council of Nevada Andrea Alexander, Makah Tribe in Neah Bay (Washington)/Affiliated Tribes of Northwest Indians Kathy Mayo, Eagle Village in Upper Yukon (Alaska)/Tanana Chiefs Conference

117

Higgs Boson May Be Within Sight

 | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Higgs Boson May Be Within Sight

 Higgs Boson May Be Within Sight

 Higgs Boson May Be Within Sight

 December 16, 2011 - 3:48pm Addthis Fermilab scientist Don Lincoln describes the concept of how the search for the Higgs boson is accomplished and also includes a brief explanation of the latest data revealed at CERN on Dec. 13. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What does this project do? Definitive proof in either direction will be enough for physicists to know if their theoretical structure of all matter in the universe is correct. These are exciting times in the world of particle physics.
 
Having completed two new experiments at the world's largest and highest-energy particle accelerator, physicists from the European

118

Top Student Team Wins $180,000 Toward Clean Energy Start Up | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Student Team Wins $180,000 Toward Clean Energy Start Up Student Team Wins $180,000 Toward Clean Energy Start Up Top Student Team Wins $180,000 Toward Clean Energy Start Up June 15, 2012 - 2:57pm Addthis Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs The winners were: Grand prize: NuMat Technologies from Northwestern University Second place: SolidEnergy Systems from Massachusetts Institute of Technology People's Choice: Navillum Nanotechnologies from University of Utah NuMat Technologies beat out five other finalists Wednesday to become the grand prize winner of the National Clean Energy Business Plan Competition, taking home $180,000 in prizes, which includes seed money for their company and additional prizes from sponsors including technical, design and legal assistance. SolidEnergy Systems came in second place, and Navillum

119

Lab Breakthrough: Microelectronic Photovoltaics | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Microelectronic Photovoltaics Microelectronic Photovoltaics Lab Breakthrough: Microelectronic Photovoltaics June 7, 2012 - 9:31am Addthis Sandia developed tiny glitter-sized photovoltaic (PV) cells that could revolutionize solar energy collection. The crystalline silicon micro-PV cells will be cheaper and have greater efficiencies than current PV collectors. View the entire YouTube Lab Breakthroughs playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What are MEMS? MEMS are microelectromechanical systems. MEMS are made up of components between 1 to 100 micrometers in size. MEMS devices generally range in size from 20 micrometers to a millimeter. Sandia National Lab semiconductor engineer Gregory Nielson and postdoctoral appointee Jose Luis Cruz-Campa recently took some time to discuss their

120

Lab Breakthrough: Neutron Science for the Fusion Mission | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Neutron Science for the Fusion Mission Neutron Science for the Fusion Mission Lab Breakthrough: Neutron Science for the Fusion Mission May 16, 2012 - 9:52am Addthis An accelerator team lead by Robert McGreevy at Oak Ridge National Laboratory is testing material - a critical role in building an experimental fusion reactor for commercial use. As part of the international coalition, they expect to have an operational reactor by 2050. View the entire Lab Breakthrough playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What is the difference between fusion and fission? Fission pulls molecules apart. This type of reactor runs nuclear power plants. Fusion puts molecules together. This type of reaction powers the Sun. Oak Ridge National Laboratory scientist Robert McGreevy explains the

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While these samples are representative of the content of NLEBeta,
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121

Report: Tech Review Takes Snapshot of Energy Research | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Report: Tech Review Takes Snapshot of Energy Research Report: Tech Review Takes Snapshot of Energy Research Report: Tech Review Takes Snapshot of Energy Research July 26, 2012 - 2:50pm Addthis The Quadrennial Technology Review contains the seventeen Technology Assessments (TAs) meant to be accessible summaries of the techno-economic aspects and R&D opportunities in the most important energy technologies or systems. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What is the QTR? The Quadrennial Technology Review offers high-level views of the technical status and potential of various energy technologies. With 17 National Labs, hundreds of funded projects at research facilities, and thousands of the world's top scientists, the Energy Department is driving a significant amount of the research and development taking place

122

Ask the Directors: Secretary Chu to Host Live Chat on the Energy Innovation  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Ask the Directors: Secretary Chu to Host Live Chat on the Energy Ask the Directors: Secretary Chu to Host Live Chat on the Energy Innovation Hubs Ask the Directors: Secretary Chu to Host Live Chat on the Energy Innovation Hubs March 5, 2012 - 12:32pm Addthis Secretary Chu is accepting questions on Facebook, Twitter and e-mail for the Energy Innovation Hub directors -- who are working to build better nuclear reactors, obtain fuel from sunlight and design the most energy efficient buildings to date. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How can I participate? Submit your questions on Facebook, Twitter (@energy), or send an e-mail to newmedia@hq.doe.gov, prior to or during the live event. Secretary Chu will host a live, streaming Q&A session with the directors of the Energy Innovation Hubs on Tuesday, March 6, at 2:15 p.m. EST at

123

Celebrating Pi Day | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Pi Day Pi Day Celebrating Pi Day March 14, 2013 - 1:29pm Addthis A mathematical formula discovered a decade ago in part by David H. Bailey (above), the Chief Technologist of the Computational Research Department at the Lawrence Berkeley National Laboratory, was the basis for researchers to find the sixty-trillionth binary digit of Pi-squared. | Photo Courtesy of Lawrence Berkely National Lab A mathematical formula discovered a decade ago in part by David H. Bailey (above), the Chief Technologist of the Computational Research Department at the Lawrence Berkeley National Laboratory, was the basis for researchers to find the sixty-trillionth binary digit of Pi-squared. | Photo Courtesy of Lawrence Berkely National Lab Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs

124

Kiwis Take Home Engineering Win for Solar Home 'First Light' | Department  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Kiwis Take Home Engineering Win for Solar Home 'First Light' Kiwis Take Home Engineering Win for Solar Home 'First Light' Kiwis Take Home Engineering Win for Solar Home 'First Light' September 29, 2011 - 4:22pm Addthis “First Light,” the solar home from New Zealand, stands complete on the first day of the 2011 U.S. Department of Energy Solar Decathlon. The 25-student team from Victory University of Wellington won the Engineering Contest today, the fourth juried contest of the competition. "First Light," the solar home from New Zealand, stands complete on the first day of the 2011 U.S. Department of Energy Solar Decathlon. The 25-student team from Victory University of Wellington won the Engineering Contest today, the fourth juried contest of the competition. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs

125

Building a Better Battery for Vehicles and the Grid | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Building a Better Battery for Vehicles and the Grid Building a Better Battery for Vehicles and the Grid Building a Better Battery for Vehicles and the Grid November 30, 2012 - 12:28pm Addthis Argonne scientists Ira Bloom (front) and Javier Bareño prepare a sample of battery materials for Raman spectroscopy, which is used to gather information regarding the nature of the materials present in the sample. | Photo courtesy of Argonne National Laboratory. Argonne scientists Ira Bloom (front) and Javier Bareño prepare a sample of battery materials for Raman spectroscopy, which is used to gather information regarding the nature of the materials present in the sample. | Photo courtesy of Argonne National Laboratory. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs

126

Lab Breakthrough: Exploring Matter at the Dawn of Time | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Lab Breakthrough: Exploring Matter at the Dawn of Time Lab Breakthrough: Exploring Matter at the Dawn of Time Lab Breakthrough: Exploring Matter at the Dawn of Time May 9, 2012 - 2:55pm Addthis Physicist Paul Sorensen describes discoveries made at the Relativistic Heavy Ion Collider (RHIC), a particle accelerator at Brookhaven National Laboratory. At RHIC, scientists from around the world study what the universe may have looked like in the first microseconds after its birth, helping us to understand more about why the physical world works the way it does - from the smallest particles to the largest stars. See the other Lab Breakthrough videos on the YouTube playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs "To me, it's like the first steps on the moon."

127

Lab Breakthrough: Better Fiber for Better Products | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Better Fiber for Better Products Better Fiber for Better Products Lab Breakthrough: Better Fiber for Better Products May 2, 2012 - 9:47am Addthis Researchers at Idaho National Laboratory have developed a cost-effective method for the continuous production of alpha silicon carbide fiber. The exceptionally strong, lightweight fiber could enable significant performance improvements in many everyday products. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What could Alpha Silicon Carbide Fibers produce? Lighter and longer-lasting vehicle body structures that are 3 to 6 times stronger than those using steel. Utilities could deploy lighter, stronger power lines. Idaho National Laboratory researcher John Garnier recently took some time to explain how the carbon fibers he and George Griffith invented could

128

Lab Breakthrough: Fusion Research Leads to Antiterrorism Device |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Fusion Research Leads to Antiterrorism Device Fusion Research Leads to Antiterrorism Device Lab Breakthrough: Fusion Research Leads to Antiterrorism Device June 26, 2012 - 12:17pm Addthis Researchers at the Princeton Plasma Physics Laboratory developed an antiterrorism device that can detect and identify sources of dangerous radiation that could be used in a dirty bomb. See the other Lab Breakthrough videos on the YouTube playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What is MINDS? MINDS stands for Miniature Integrated Nuclear Detection System The system detects and identifies radiological conditions under a variety of real-world environments - for instance in a shipping yard, at an airport, or public building. Princeton Plasma Physics Laboratory's Charles Gentile, Lead Developer of

129

Helmets Designed by Supercomputers Help Warfighters at Home | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Helmets Designed by Supercomputers Help Warfighters at Home Helmets Designed by Supercomputers Help Warfighters at Home Helmets Designed by Supercomputers Help Warfighters at Home December 26, 2012 - 1:40pm Addthis Paul Taylor, right, and John Ludwigsen, center, both researchers with Sandia’s Terminal Ballistics Technology Department, and Corey Ford, a neurologist at the University of New Mexico's Health Sciences Center, discuss their research on traumatic brain injuries. | Photo by Randy Montoya Paul Taylor, right, and John Ludwigsen, center, both researchers with Sandia's Terminal Ballistics Technology Department, and Corey Ford, a neurologist at the University of New Mexico's Health Sciences Center, discuss their research on traumatic brain injuries. | Photo by Randy Montoya Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs

130

Energy Tricks Lead to Cost-Saving Treats | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Energy Tricks Lead to Cost-Saving Treats Energy Tricks Lead to Cost-Saving Treats Energy Tricks Lead to Cost-Saving Treats October 31, 2013 - 10:34am Addthis Halloween LED lights are a common, energy efficient decoration. | Photo courtesy of Jeremy Roof, Creative Commons. Halloween LED lights are a common, energy efficient decoration. | Photo courtesy of Jeremy Roof, Creative Commons. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What does this mean for me? Compact fluorescent porch lights, more efficient candy manufacturing and LED street lights are just a few ways Halloween has become a more energy efficient holiday. Want to save more energy? Learn more tips and tricks to ward off energy waste as temperatures cool. Check out Energy Saver for more ways to save energy and money.

131

Hybrid model of GeV-TeV gamma ray emission from Galactic Center  

E-Print Network (OSTI)

The observations of high energy $\\gamma$-ray emission from the Galactic center (GC) by HESS, and recently by Fermi, suggest the cosmic ray acceleration in the GC and possibly around the supermassive black hole. In this work we propose a lepton-hadron hybrid model to explain simultaneously the GeV-TeV $\\gamma$-ray emission. Both electrons and hadronic cosmic rays were accelerated during the past activity of the GC. Then these particles would diffuse outwards and interact with the interstellar gas and background radiation field. The collisions between hadronic cosmic rays with gas is responsible to the TeV $\\gamma$-ray emission detected by HESS. With fast cooling in the strong radiation field, the electrons would cool down and radiate GeV photons through inverse Compton scattering off the soft background photons. This scenario provides a natural explanation of the observed GeV-TeV spectral shape of $\\gamma$-rays.

Yi-Qing Guo; Qiang Yuan; Cheng Liu; Ai-Feng Li

2013-03-26T23:59:59.000Z

132

Supercomputing Our Way to a Clean Energy Future | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Supercomputing Our Way to a Clean Energy Future Supercomputing Our Way to a Clean Energy Future Supercomputing Our Way to a Clean Energy Future August 6, 2012 - 2:34pm Addthis Using computer modeling technology from Lawrence Livermore National Laboratory (LLNL), truck manufacturer Navistar is able to improve vehicle fuel efficiency and durability without the expense of wind tunnel testing. | Photo courtesy of LLNL Livermore Valley Open Campus. Using computer modeling technology from Lawrence Livermore National Laboratory (LLNL), truck manufacturer Navistar is able to improve vehicle fuel efficiency and durability without the expense of wind tunnel testing. | Photo courtesy of LLNL Livermore Valley Open Campus. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs

133

Lab Breakthrough: Lead-free Solder | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Lead-free Solder Lead-free Solder Lab Breakthrough: Lead-free Solder May 24, 2012 - 10:45am Addthis Iver Anderson, senior metallurgist at Ames Laboratory, explains the importance of lead-free solder in taking hazardous lead out of the environment by eliminating it from discarded computers and electronics that wind up in landfills. Anderson led a team that developed a tin-silver-copper replacement for traditional lead-tin solder that has been adopted by more than 50 companies worldwide. View the entire Lab Breakthrough playlist. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs "Many creative solutions to problems in one field can be borrowed from another field..." Dr. Iver Anderson, Ames National Lab senior metallurgist Dr. Iver Anderson, Ames National Laboratory materials scientist, developed

134

Commercial Ethanol Turns Dross to Dollars for Rural Iowans | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Commercial Ethanol Turns Dross to Dollars for Rural Iowans Commercial Ethanol Turns Dross to Dollars for Rural Iowans Commercial Ethanol Turns Dross to Dollars for Rural Iowans September 28, 2011 - 3:23pm Addthis American farmers harvest 80 million acres of corn each autumn. The corn stover usually left on a hewn field can be processed into a renewable transportation fuel called bioethanol. | Image courtesy of POET American farmers harvest 80 million acres of corn each autumn. The corn stover usually left on a hewn field can be processed into a renewable transportation fuel called bioethanol. | Image courtesy of POET Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What are the key facts? Farmers, truck operators, farm equipment distributors and agricultural laborers all benefit from the emerging bioethanol market in

135

Iron-based Material Paves Way for New Superconductors | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Iron-based Material Paves Way for New Superconductors Iron-based Material Paves Way for New Superconductors Iron-based Material Paves Way for New Superconductors February 12, 2013 - 6:26pm Addthis Brookhaven physicists Weidong Si (left) and Qiang Li look into the vacuum chamber where the new high-field iron-based superconductors are made through a process called pulsed-laser deposition. Brookhaven physicists Weidong Si (left) and Qiang Li look into the vacuum chamber where the new high-field iron-based superconductors are made through a process called pulsed-laser deposition. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How much better is this film? Under an intense 30-tesla magnetic field, the film carried a record-high 200,000 amperes per square centimeter.

136

Zombie Replicants to Outperform the Living | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Zombie Replicants to Outperform the Living Zombie Replicants to Outperform the Living Zombie Replicants to Outperform the Living February 8, 2013 - 5:08pm Addthis The first stage of the "zombie cell" only moderately heated, the cell is now pure silica and needed a gold coating for a scanning electron microscope to image it. | Photo courtesy of Sandia National Laboratories The first stage of the "zombie cell" only moderately heated, the cell is now pure silica and needed a gold coating for a scanning electron microscope to image it. | Photo courtesy of Sandia National Laboratories Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs Is it just silica? Other porous material structures, relying on titanium instead of silica, have been formed using the organic template technique.

137

Reddit AMA: Marius Stan, energy researcher and Breaking Bad actor |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Reddit AMA: Marius Stan, energy researcher and Breaking Bad actor Reddit AMA: Marius Stan, energy researcher and Breaking Bad actor Reddit AMA: Marius Stan, energy researcher and Breaking Bad actor February 14, 2013 - 12:36pm Addthis Marius Stan, computational energy scientist from Argonne National Lab, submits his verification photo as part of an informal question and answer session with Internet users on the Ask Me Anything section of the social website Reddit. Marius Stan, computational energy scientist from Argonne National Lab, submits his verification photo as part of an informal question and answer session with Internet users on the Ask Me Anything section of the social website Reddit. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs What is an Reddit AMA? AMA stands for "Ask me anything."

138

Universittsmedizin Gttingen Publikationen und Hochschulschriften 2010  

E-Print Network (OSTI)

(2): 550-63. 8. Herrmann MKA, Bloch E, Overbeck T, Koerber W, Wolff HA, Hille A, Vorwerk H, Hess CF, Muller-up and literature overview. CANCER RADIOTHER, 15: 81-8. 9. Hille A, Grüger S, Christiansen H, Wolff HA, Volkmer B keratinocytes in vitro. Radiat Environ Bioph (Internet- Ausgabe), 49(2): 261-70. 10. Koenig S, Yuan Q, Krause P

Gollisch, Tim

139

"2012 Retail Power Marketers Sales- Transportation"  

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

Transportation" Transportation" "(Data from form EIA-861 schedule 4B)" "Entity","State","Ownership","Customers (Count)","Sales (Megawatthours)","Revenues (Thousands Dollars)","Average Price (cents/kWh)" "Northern California Power Agny","CA","Political Subdivision",1,366159,20892,5.705718 "Constellation NewEnergy, Inc","CT","Power Marketer",2,33816,2550.5,7.5422877 "HESS CORPORATION","CT","Power Marketer",1,106596,5490,5.1502871 "American PowerNet","DC","Power Marketer",1,148928,8161,5.4798292 "Reliant Energy Northeast LLC","DC","Power Marketer",1,200803,13152,6.5497029

140

Table 3. Top Five Retailers of Electricity, with End Use Sectors, 2010  

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

Rhode Island" Rhode Island" "1. The Narragansett Electric Co","Investor-Owned",5287440,3068731,1938910,279799,"-" "2. Constellation NewEnergy, Inc","Other Provider",594900,"-",387627,191168,16105 "3. TransCanada Power Mktg Ltd","Other Provider",501659,"-","-",501659,"-" "4. Hess Retail Natural Gas and Elec. Acctg.","Other Provider",389583,"-",116875,272708,"-" "5. Glacial Energy Holdings","Other Provider",283973,"-",283973,"-","-" "Total Sales, Top Five Providers",,7057555,3068731,2727385,1245334,16105 "Percent of Total State Sales",,90,98,74,100,59

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We encourage you to perform a real-time search of NLEBeta
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141

The high-energy gamma-ray light curve of PSR B1259 -63  

E-Print Network (OSTI)

The high-energy gamma-ray light curve of the binary system PSR B1259 -63, is computed using the approach that successfully predicted the spectrum at periastron. The simultaneous INTEGRAL and H.E.S.S. spectra taken 16 days after periastron currently permit both a model with dominant radiative losses, high pulsar wind Lorentz factor and modest efficiency as well as one with dominant adiabatic losses, a slower wind and higher efficiency. In this paper we shown how the long-term light curve may help to lift this degeneracy.

J. G. Kirk; Lewis Ball; S. Johnston

2005-09-30T23:59:59.000Z

142

Construction and analysis of tag single nucleotide polymorphism maps for six human-mouse orthologous candidate genes in type 1 diabetes  

E-Print Network (OSTI)

Acad Sci U S A 100:14982-14987, 2003 4. Lyons PA, Hancock WW, Denny P, Lord CJ, Hill NJ, Armitage N, Siegmund T, Todd JA, Phillips MS, Hess JF, Chen SL, Fischer PA, Peterson LB, Wicker LS: The NOD Idd9 genetic interval influences the pathogenicity... AV, Alt FW, Faccio R, Brown T, Hoog J, Fredericks J, Nishi S, Mildiner S, Moores SL, Brugge J, Rosen FS, Swat W: Vav1/2/3-null mice define an essential role for Vav family proteins in lymphocyte development and activation but a differential...

Maier, Lisa M; Smyth, Deborah J; Vella, Adrian; Payne, Felicity; Cooper, Jason D; Pask, Rebecca; Lowe, Christopher E; Hulme, John S; Smink, Luc J; Fraser, Heather; Moule, Carolyn; Hunter, Kara M; Chamberlain, Giselle; Walker, Neil M; Nutland, Sarah; Undlien, Dag E; Ronningen, Kjersti S; Guja, Cristian; Ionescu-Tirgoviste, Constantin; Savage, David A; Strachan, David P; Peterson, Laurence B; Todd, John A; Wicker, Linda S; Twells, Rebecca C J

2005-02-18T23:59:59.000Z

143

Table 3. Top Five Retailers of Electricity, with End Use Sectors, 2010  

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

District of Columbia" District of Columbia" "1. Potomac Electric Power Co","Investor-Owned",3388490,2014044,1374446,"-","-" "2. Constellation NewEnergy, Inc","Other Provider",2427380,"-",2369901,12091,45388 "3. PEPCO Energy Services","Other Provider",2099946,1012,2098934,"-","-" "4. Washington Gas Energy Services","Other Provider",1759773,39513,1720260,"-","-" "5. Hess Retail Natural Gas and Elec. Acctg.","Other Provider",801256,"-",536225,265031,"-" "Total Sales, Top Five Providers",,10476845,2054569,8099766,277122,45388 "Percent of Total State Sales",,88,97,88,100,14

144

Table 3. Top Five Retailers of Electricity, with End Use Sectors, 2010  

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

Maine" Maine" "1. NextEra Energy Power Marketing LLC","Other Provider",3876276,3548267,316308,11701,"-" "2. Dominion Retail Inc","Other Provider",1308742,"-",1308742,"-","-" "3. Constellation NewEnergy, Inc","Other Provider",987998,"-",704002,283996,"-" "4. Hess Retail Natural Gas and Elec. Acctg.","Other Provider",593324,"-",593324,"-","-" "5. Suez Energy Resources North America","Other Provider",483466,"-",483466,"-","-" "Total Sales, Top Five Providers",,7249806,3548267,3405842,295697,"-" "Percent of Total State Sales",,63,81,83,10

145

#LabChat: What is Dark Energy? Oct 25 at 2pm ET | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

What is Dark Energy? Oct 25 at 2pm ET What is Dark Energy? Oct 25 at 2pm ET #LabChat: What is Dark Energy? Oct 25 at 2pm ET October 23, 2012 - 3:03pm Q&A #LabChat Oct 25, 2 pm ET | These physicists are using advanced telescopes and cameras to look for proof of dark energy. Ask them your questions. Ask Us Addthis What is dark energy? Learn about the force we think accounts for three-quarters of the mass and energy in the known universe. What is dark energy? Learn about the force we think accounts for three-quarters of the mass and energy in the known universe. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How can I participate? Send us your questions via Twitter (@ENERGY) using #labchat. Email us your questions at newmedia@hq.doe.gov. This Thursday, October 25, at 2 p.m. EDT, three physicists studying dark

146

#LabChat Q&A: Biofuels of the Future, Sept. 26 at 2 pm EDT | Department of  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

#LabChat Q&A: Biofuels of the Future, Sept. 26 at 2 pm EDT #LabChat Q&A: Biofuels of the Future, Sept. 26 at 2 pm EDT #LabChat Q&A: Biofuels of the Future, Sept. 26 at 2 pm EDT September 25, 2012 - 1:23pm Addthis Great Lakes Bioenergy Research Center researcher and University of Wisconsin - Madison Assistant Professor Brian Pfleger explains the term "next generation biofuel." You can ask him questions on Sept. 26 at 2 p.m. EDT by using #LabChat in a tweet. Michael Hess Michael Hess Former Digital Communications Specialist, Office of Public Affairs How can I participate? Send us your questions via Twitter (@ENERGY) using #labchat. Email us your questions at newmedia@hq.doe.gov. This Wednesday, September 26, at 2 p.m. EDT, Great Lakes Bioenergy Research Center will host #LabChat Q&A: Biofuels of the Future. The University of

147

ASSESSING THE FEASIBILITY OF COSMIC-RAY ACCELERATION BY MAGNETIC TURBULENCE AT THE GALACTIC CENTER  

SciTech Connect

The presence of relativistic particles at the center of our Galaxy is evidenced by the diffuse TeV emission detected from the inner {approx}2 Degree-Sign of the Galaxy. Although it is not yet entirely clear whether the origin of the TeV photons is due to hadronic or leptonic interactions, the tight correlation of the intensity distribution with the distribution of molecular gas along the Galactic ridge strongly points to a pionic-decay process involving relativistic protons. In previous work, we concluded that point-source candidates, such as the supermassive black hole Sagittarius A* (identified with the High-Energy Stereoscopic System (HESS) source J1745-290) or the pulsar wind nebulae dispersed along the Galactic plane, could not account for the observed diffuse TeV emission from this region. Motivated by this result, we consider here the feasibility that the cosmic rays populating the Galactic center region are accelerated in situ by magnetic turbulence. Our results indicate that even in a highly conductive environment, this mechanism is efficient enough to energize protons within the intercloud medium to the {approx}>TeV energies required to produce the HESS emission.

Fatuzzo, M. [Physics Deparment, Xavier University, Cincinnati, OH 45207 (United States); Melia, F., E-mail: fatuzzo@xavier.edu, E-mail: fmelia@email.arizona.edu [Department of Physics, Applied Math Program, and Steward Observatory, University of Arizona, AZ 85721 (United States)

2012-05-01T23:59:59.000Z

148

Constraints on the Parameters of the Unseen Pulsar in the PWN G0.9+0.1 from Radio, X-Ray, and VHE Gamma-Ray Observations  

E-Print Network (OSTI)

Radio, X-ray, and HESS gamma-ray observations of the Galactic Center (GC) composite supernova remnant SNR G0.9+0.1 are used to constrain a time-dependent injection model of the downstream electron spectrum responsible for the total multiwavelength spectrum. The effect of spindown power evolution aswell as nebular field evolution is employed to reproduce the present-day multiwavelength spectrum. Assuming a nebular magnetic field decay model of typical HESS-type pulsar wind nebulae (PWN), ending with a present-day field strength of 6muG, we obtain an initial spindown power of ~ 10E+38 ergs/s if we assume a birth period and age of 43ms and 6,500 yr respectively to reproduce the properties of the SNR shell. This gives a present-day spindown power of ~ 10E+37 ergs/s, which agrees well with the present-day spindown power derived from X-ray observations.

C. Venter; O. C. de Jager

2006-12-21T23:59:59.000Z

149

A Gamma-Ray Burst/Pulsar for Cosmic-Ray Positrons with a Dark Matter-like Spectrum  

E-Print Network (OSTI)

We propose that a nearby gamma-ray burst (GRB) or GRB-like (old, single and short-lived) pulsar/supernova remnant/microquasar about 10^{5-6} years ago may be responsible for the excesses of cosmic-ray positrons and electrons recently observed by the PAMELA, ATIC/PPB-BETS, Fermi and HESS experiments. We can reproduce the smooth Fermi/HESS spectra as well as the spiky ATIC/PPB-BETS spectra. The spectra have a sharp cutoff that is similar to the dark matter predictions, sometimes together with a line (not similar), since higher energy cosmic-rays cool faster where the cutoff/line energy marks the source age. A GRB-like astrophysical source is expected to have a small but finite spread in the cutoff/line as well as anisotropy in the cosmic-ray and diffuse gamma-ray flux, providing a method for the Fermi and future CALET experiments to discriminate between dark matter and astrophysical origins.

Kunihito Ioka

2008-12-30T23:59:59.000Z

150

NREL: Wind Research - Small Wind Turbine Webinars  

NLE Websites -- All DOE Office Websites (Extended Search)

Small Wind Turbine Webinars Small Wind Turbine Webinars Here you will find webinars about small wind turbines that NREL hosted. Introducing WindLease(tm): Making Wind Energy Affordable NREL and the American Solar Energy Society (ASES) Wind Division co-hosted this webinar. (Text Version.) Date: August 1, 2013 Run Time: 40 minutes Joe Hess, VP of Business Development at United Wind, described United Wind's WindQuote and WindLease Program and explained the process from the dealer's and consumer's perspective. Texas Renewable Energy Industries Association NREL and the American Solar Energy Society (ASES) Wind Division co-hosted this webinar. (Text Version). Date: March 7, 2013 Run Time: 1 hour Russel Smith, Texas Renewable Energy Industries Association executive director and co-founder, provided an overview of the trade association

151

Distribution List: For Action: Joseph A. McBrearty, SC-3 John E. Surash, EM-50  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Distribution List: Distribution List: For Action: Joseph A. McBrearty, SC-3 John E. Surash, EM-50 Carol Battershell, GFO Richard Provencher, NE-ID William C. Gibson, FE-44 For Information: Barbara Jackson, SC-OR Patricia Schuneman, SC-CH Jeffrey C. Armstrong, SR David Hess, EMCBC Diane Snow, CBFO Michael Adams, NE-ID Kelly Gele, FE-4451 Department of Energy M&O CONTRACTOR PURCHASING SYSTEM BALANCED SCORECARD PERFORMANCE MANAGEMENT PROGRAM Core Performance Measures FY 2014 ISSUED: 08/21/2013 LEARNING AND GROWTH - Employee Satisfaction - Employee Alignment FINANCIAL - Optimum Cost Efficiency of Purchasing Operations - Financial Contributions of Procurement via Cost Savings MISSION VISION STRATEGY CUSTOMER - Customer Satisfaction INTERNAL BUSINESS

152

DOE Awards Storage Contracts for Northeast Home Heating Oil Reserve |  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Awards Storage Contracts for Northeast Home Heating Oil Reserve Awards Storage Contracts for Northeast Home Heating Oil Reserve DOE Awards Storage Contracts for Northeast Home Heating Oil Reserve August 18, 2011 - 1:00pm Addthis Washington, DC - The U.S. Department of Energy (DOE) today announced that new contracts have been awarded for commercial storage of 650,000 barrels of ultra low sulfur distillate (ULSD) for the Northeast Home Heating Oil Reserve (NEHHOR). Awards were made to two companies for storage in New England--Hess Corporation in Groton, CT for 400,000 barrels, and Global Companies LLC in Revere, MA for 250,000 barrels. The procurement was conducted by the Defense Logistics Agency (DLA Energy), acting as the agent for DOE. Acquisition of storage services for an additional 350,000 barrels is planned to complete the establishment of a

153

Publications  

NLE Websites -- All DOE Office Websites (Extended Search)

Naomi H. Harley [Clear All Filters] Naomi H. Harley [Clear All Filters] 2005 Gundel, Lara A., and Richard G. Sextro. "Aerosol physics and chemistry: indoor perspective, Chapter 10." In Aerosol Handbook: Measurement, Dosimetry and Health Effects, edited by Lev S. Ruzer and Naomi H. Harley, 189-224. Boca Raton: CRC Press, 2005. Price, Phillip N.. "Assessing uncertainties in the relationship between inhaled particle concentration, internal deposition and health effects, Chapter 9." In Aerosols Handbook: Measurement, Dosimetry and Health Effects, edited by Lev S. Ruzer and Naomi H. Harley, 157-188. CRC Press, Boca Raton, FL, 2005. 2000 Hopke, Philip K., Thomas B. Borak, John Doull, James E. Cleaver, Keith F. Eckerman, Linda C. S. Gundersen, Naomi H. Harley, Thomas C. Hess, Nancy E.

154

Additional Storage Contracts Awarded for Northeast Home Heating Oil Reserve  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Additional Storage Contracts Awarded for Northeast Home Heating Oil Additional Storage Contracts Awarded for Northeast Home Heating Oil Reserve Additional Storage Contracts Awarded for Northeast Home Heating Oil Reserve September 30, 2011 - 1:00pm Addthis Washington, DC - The U.S. Department of Energy (DOE) has completed the acquisition of commercial storage services for the one million barrel Northeast Home Heating Oil Reserve (NEHHOR). Two awards totaling 350,000 barrels have been made to companies that had earlier received storage contracts totaling 650,000 barrels. Hess Corporation in Groton, CT has been awarded a second contract for 100,000 barrels, increasing its storage obligation to 500,000 barrels. Global Companies LLC in Revere, MA was awarded a second contract for 250,000 barrels, increasing its obligation to 500,000 barrels.

155

Northeast Home Heating Oil Reserve  

Gasoline and Diesel Fuel Update (EIA)

Northeast Home Heating Oil Reserve Northeast Home Heating Oil Reserve Information on the Northeast Home Heating Oil Reserve is available from the U.S. Department of Energy (DOE) Office of Petroleum Reserves web site at http://www.fossil.energy.gov/programs/reserves/heatingoil/. Northeast Home Heating Oil Reserve (NEHHOR) inventories now classified as ultra-low sulfur distillate (15 parts per million) are not considered to be in the commercial sector and therefore are excluded from distillate fuel oil supply and disposition statistics in Energy Information Administration publications, such as the Weekly Petroleum Status Report, Petroleum Supply Monthly, and This Week In Petroleum. Northeast Home Heating Oil Reserve Terminal Operator Location (Thousand Barrels) Hess Corp. Groton, CT 500*

156

Department of Energy - ARPA-E Summit  

157

Process Design and Economics for Conversion of Lignocellulosic Biomass to Ethanol: Thermochemical Pathway by Indirect Gasification and Mixed Alcohol Synthesis  

NLE Websites -- All DOE Office Websites (Extended Search)

Conversion of Lignocellulosic Conversion of Lignocellulosic Biomass to Ethanol Thermochemical Pathway by Indirect Gasification and Mixed Alcohol Synthesis A. Dutta, M. Talmadge, and J. Hensley National Renewable Energy Laboratory Golden, Colorado M. Worley and D. Dudgeon Harris Group Inc. Atlanta, Georgia and Seattle, Washington D. Barton, P. Groenendijk, D. Ferrari, and B. Stears The Dow Chemical Company Midland, Michigan E.M. Searcy, C.T. Wright, and J.R. Hess Idaho National Laboratory Idaho Falls, Idaho Technical Report NREL/TP-5100-51400 May 2011 NREL is a national laboratory of the U.S. Department of Energy, Office of Energy Efficiency & Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. National Renewable Energy Laboratory 1617 Cole Boulevard

158

Additional Storage Contracts Awarded for Northeast Home Heating Oil Reserve  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

Additional Storage Contracts Awarded for Northeast Home Heating Oil Additional Storage Contracts Awarded for Northeast Home Heating Oil Reserve Additional Storage Contracts Awarded for Northeast Home Heating Oil Reserve September 30, 2011 - 1:00pm Addthis Washington, DC - The U.S. Department of Energy (DOE) has completed the acquisition of commercial storage services for the one million barrel Northeast Home Heating Oil Reserve (NEHHOR). Two awards totaling 350,000 barrels have been made to companies that had earlier received storage contracts totaling 650,000 barrels. Hess Corporation in Groton, CT has been awarded a second contract for 100,000 barrels, increasing its storage obligation to 500,000 barrels. Global Companies LLC in Revere, MA was awarded a second contract for 250,000 barrels, increasing its obligation to 500,000 barrels.

159

Page not found | Department of Energy  

Energy.gov (U.S. Department of Energy (DOE)) Indexed Site

1121 - 1130 of 9,640 results. 1121 - 1130 of 9,640 results. Download CX-006789: Categorical Exclusion Determination Provision of Funds to the Confederated Salish and Kootenai Tribes (CSKT) for Purchase of Lake County Properties CX(s) Applied: B1.25 Date: 09/09/2011 Location(s): Lake County, Montana Office(s): Bonneville Power Administration http://energy.gov/nepa/downloads/cx-006789-categorical-exclusion-determination Article DOE Announces Award of a Contract to Repurchase Heating Oil for the Northeast Home Heating Oil Reserve WASHINGTON, DC - The U.S. Department of Energy today announced the award of a contract to Hess Corporation for the delivery of approximately 808,625 gallons (approximately 19,250 barrels) of home... http://energy.gov/articles/doe-announces-award-contract-repurchase-heating-oil-northeast-home-heating-oil-reserve

160

TIMING AND INTERSTELLAR SCATTERING OF 35 DISTANT PULSARS DISCOVERED IN THE PALFA SURVEY  

SciTech Connect

We have made extensive observations of 35 distant slow (non-recycled) pulsars discovered in the ongoing Arecibo PALFA pulsar survey. Timing observations of these pulsars over several years at Arecibo Observatory and Jodrell Bank Observatory have yielded high-precision positions and measurements of rotation properties. Despite being a relatively distant population, these pulsars have properties that mirror those of the previously known pulsar population. Many of the sources exhibit timing noise, and one underwent a small glitch. We have used multifrequency data to measure the interstellar scattering properties of these pulsars. We find scattering to be higher than predicted along some lines of sight, particularly in the Cygnus region. Finally, we present XMM-Newton and Chandra observations of the youngest and most energetic of the pulsars, J1856+0245, which has previously been associated with the GeV-TeV pulsar wind nebula HESS J1857+026.

Nice, D. J. [Department of Physics, Lafayette College, Easton, PA 18042 (United States); Altiere, E.; Farrington, D.; Popa, L.; Wang, Y. [Department of Physics, Bryn Mawr College, Bryn Mawr, PA 19010 (United States); Bogdanov, S.; Camilo, F. [Columbia Astrophysics Laboratory, Columbia University, New York, NY 10027 (United States); Cordes, J. M.; Brazier, A.; Chatterjee, S. [Astronomy Department, Cornell University, Ithaca, NY 14853 (United States); Hessels, J. W. T. [ASTRON, The Netherlands Institute for Radio Astronomy, Postbus 2, 7990-AA Dwingeloo (Netherlands); Kaspi, V. M. [Department of Physics, McGill University, Montreal, QC H3A 2T8 (Canada); Lyne, A. G.; Stappers, B. W. [Jodrell Bank Centre for Astrophysics, School of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom); Ransom, S. M. [NRAO, Charlottesville, VA 22903 (United States); Sanpa-arsa, S. [Department of Astronomy, University of Virginia, Charlottesville, VA 22903 (United States); Allen, B. [Max-Planck-Institut fuer Gravitationsphysik, D-30167 Hannover (Germany); Bhat, N. D. R. [Center for Astrophysics and Supercomputing, Swinburne University, Hawthorn, Victoria 3122 (Australia); Champion, D. J. [Max-Planck-Institut fuer Radioastronomie, D-53121 Bonn (Germany); Crawford, F. [Department of Physics and Astronomy, Franklin and Marshall College, Lancaster, PA 17604-3003 (United States); and others

2013-07-20T23:59:59.000Z

Note: This page contains sample records for the topic "amerada hess hess" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
to obtain the most current and comprehensive results.


161

Influence of aerosols from biomass burning on the spectral analysis of Cherenkov telescopes  

E-Print Network (OSTI)

During the last decade, imaging atmospheric Cherenkov telescopes (IACTs) have proven themselves as astronomical detectors in the very-high-energy (VHE; E>0.1 TeV) regime. The IACT technique observes the VHE photons indirectly, using the Earth's atmosphere as a calorimeter. Much of the calibration of Cherenkov telescope experiments is done using Monte Carlo simulations of the air shower development, Cherenkov radiation and detector, assuming certain models for the atmospheric conditions. Any deviation of the real conditions during observations from the assumed atmospheric model will result in a wrong reconstruction of the primary gamma-ray energy and the resulting source spectra. During eight years of observations, the High Energy Stereoscopic System (H.E.S.S.) has experienced periodic natural as well as anthropogenic variations of the atmospheric transparency due to aerosols created by biomass burning. In order to identify data that have been taken under such long-term reductions in atmospheric transparency, ...

Reyes, R de los; Bernloehr, K; Krueger, P; Deil, C; Gast, H; Kosack, K; Marandon, V

2013-01-01T23:59:59.000Z

162

Establishing a connection between high-power pulsars and very-high-energy gamma-ray sources  

E-Print Network (OSTI)

In the very-high-energy (VHE) gamma-ray wave band, pulsar wind nebulae (PWNe) represent to date the most populous class of Galactic sources. Nevertheless, the details of the energy conversion mechanisms in the vicinity of pulsars are not well understood, nor is it known which pulsars are able to drive PWNe and emit high-energy radiation. In this paper we present a systematic study of a connection between pulsars and VHE gamma-ray sources based on a deep survey of the inner Galactic plane conducted with the High Energy Stereoscopic System (H.E.S.S.). We find clear evidence that pulsars with large spin-down energy flux are associated with VHE gamma-ray sources. This implies that these pulsars emit on the order of 1% of their spin-down energy as TeV gamma-rays.

Carrigan, S; Hofmann, W; Kosack, K; Lohse, T; Reimer, O

2007-01-01T23:59:59.000Z

163

Frozen-orbital and downfolding calculations with auxiliary-field quantum Monte Carlo  

E-Print Network (OSTI)

We describe the implementation of the frozen-orbital and downfolding approximations in the auxiliary-field quantum Monte Carlo (AFQMC) method. These approaches can provide significant computational savings compared to fully correlating all the electrons. While the many-body wave function is never explicit in AFQMC, its random walkers are Slater determinants, whose orbitals may be expressed in terms of any one-particle orbital basis. It is therefore straightforward to partition the full N-particle Hilbert space into active and inactive parts to implement the frozen-orbital method. In the frozen-core approximation, for example, the core electrons can be eliminated in the correlated part of the calculations, greatly increasing the computational efficiency, especially for heavy atoms. Scalar relativistic effects are easily included using the Douglas-Kroll-Hess theory. Using this method, we obtain a way to effectively eliminate the error due to single-projector, norm-conserving pseudopotentials in AFQMC. We also i...

Purwanto, Wirawan; Krakauer, Henry

2013-01-01T23:59:59.000Z

164

Rheological properties essential for the atomization of coal water slurries (CWS). Quarterly progress report, September 15, 1992--December 15, 1992  

SciTech Connect

During the previous quarter, it was noted that understanding the rheology of polymeric additives used in enhancing the stability of the CWS was essential in meeting the project objectives. Thus, further review of the literature was carried out to gain information on the rheology of polymeric additives, particularly at high shear rates. Philippoff and Hess [1] reported the existence of four distinct flow regions in the behavior of flow curve analysis of polymer solutions (Figure 1). These regions are characterized by (1) A Newtonian Region; (2) A non-Newtonian pseudoplastic region; (3) A second Newtonian region at high shear rates 10{sup 5} to 10{sup 6} sec{sup {minus}1}; (4) and a region of steepening slope identified as the onset of turbulence. Efforts during this past quarter were therefore directed towards the study of high shear rheology of the CWS.

Ohene, F.

1992-12-31T23:59:59.000Z

165

Rheological properties essential for the atomization of coal water slurries (CWS)  

SciTech Connect

During the previous quarter, it was noted that understanding the rheology of polymeric additives used in enhancing the stability of the CWS was essential in meeting the project objectives. Thus, further review of the literature was carried out to gain information on the rheology of polymeric additives, particularly at high shear rates. Philippoff and Hess [1] reported the existence of four distinct flow regions in the behavior of flow curve analysis of polymer solutions (Figure 1). These regions are characterized by (1) A Newtonian Region; (2) A non-Newtonian pseudoplastic region; (3) A second Newtonian region at high shear rates 10[sup 5] to 10[sup 6] sec[sup [minus]1]; (4) and a region of steepening slope identified as the onset of turbulence. Efforts during this past quarter were therefore directed towards the study of high shear rheology of the CWS.

Ohene, F.

1992-01-01T23:59:59.000Z

166

Very-high-energy gamma-ray signal from nuclear photodisintegration as a probe of extragalactic sources of ultrahigh-energy nuclei  

Science Conference Proceedings (OSTI)

It is crucial to identify the ultrahigh-energy cosmic-ray sources and probe their unknown properties. Recent results from the Pierre Auger Observatory favor a heavy nuclear composition for the ultrahigh-energy cosmic rays. Under the requirement that heavy nuclei survive in these sources, using gamma-ray bursts as an example, we predict a diagnostic gamma-ray signal, unique to nuclei--the emission of deexcitation gamma rays following photodisintegration. These gamma rays, boosted from MeV to TeV-PeV energies, may be detectable by gamma-ray telescopes such as VERITAS, HESS, and MAGIC, and especially the next-generation CTA and AGIS. They are a promising messenger to identify and study individual ultrahigh-energy nuclei accelerators.

Murase, Kohta [Yukawa Institute for Theoretical Physics, Kyoto University, Kyoto, 606-8502 (Japan); CCAPP, Ohio State University, Columbus, Ohio 43210 (United States); Beacom, John F. [CCAPP, Ohio State University, Columbus, Ohio 43210 (United States); Department of Physics, Ohio State University, Columbus, Ohio 43210 (United States); Department of Astronomy, Ohio State University, Columbus, Ohio 43210 (United States)

2010-08-15T23:59:59.000Z

167

High Energy Gamma Rays from Protons Hitting Compact Objects  

E-Print Network (OSTI)

In a previous paper the spectrum of positrons produced by matter initially at rest falling onto a massive compact object was calculated. In this paper this calculation is generalized to obtain both the spectrum of in-flight positron annihilation and pi0 decay gamma rays produced when protons with a cosmic ray-like spectrum hit the surface. The resulting pi0 decay gamma ray spectrum reflects the high energy proton energy spectrum, and is largely independent of the mass of the compact object. One notable prediction for all compact objects is a dip in the spectrum below 70 MeV. As applied to the 10^6 solar mass massive compact object near to the center of our galaxy, our theory shows promise for explaining the gamma rays coming from the galactic center as observed by both the Compton satellite and HESS ground based array.

J. Barbieri; G. Chapline

2008-06-09T23:59:59.000Z

168

Very-High-Energy Gamma-Ray Signal from Nuclear Photodisintegration as a Probe of Extragalactic Sources of Ultrahigh-Energy Nuclei  

E-Print Network (OSTI)

It is crucial to identify the ultrahigh-energy cosmic-ray (UHECR) sources and probe their unknown properties. Recent results from the Pierre Auger Observatory favor a heavy nuclear composition for the UHECRs. Under the requirement that heavy nuclei survive in these sources, using gamma-ray bursts as an example, we predict a diagnostic gamma-ray signal, unique to nuclei - the emission of de-excitation gamma rays following photodisintegration. These gamma rays, boosted from MeV to TeV-PeV energies, may be detectable by gamma-ray telescopes such as VERITAS, HESS, and MAGIC, and especially the next-generation CTA and AGIS. They are a promising messenger to identify and study individual UHE nuclei accelerators.

Kohta Murase; John F. Beacom

2010-02-22T23:59:59.000Z

169

EMSL Research and Capability Development Proposals  

NLE Websites -- All DOE Office Websites (Extended Search)

Accurate Embedded-Cluster Modeling of Insulators: Applications to Metal Oxide Surface Accurate Embedded-Cluster Modeling of Insulators: Applications to Metal Oxide Surface Chemistry and Surface Excitation Processes Project Duration: May 2008 - Sept 2010 Principal Investigator: Niri Govind, Senior Research Scientist II, High Performance Software Development, EMSL Co-Investigator: Karol Kowalski, Senior Research Scientist II, High Performance Software Development, EMSL Collaborators: Ken Beck (EMSL); Wayne Hess, Alan Joly, Roger Rousseau, Scott Chambers (FCSD); Peter Sushko, Alex Shluger (University College London) The accurate characterization of adsorbate reactivity and surface excitation processes at surfaces such as metal oxide interfaces is key to understanding, controlling, and designing molecular interactions and transformations for new energy sources. Electronic structure of defects and localized states and surface

170

ARRA-Multi-Level Energy Storage and Controls for Large-Scale Wind Energy Integration  

DOE Green Energy (OSTI)

The Project Objective is to design innovative energy storage architecture and associated controls for high wind penetration to increase reliability and market acceptance of wind power. The project goals are to facilitate wind energy integration at different levels by design and control of suitable energy storage systems. The three levels of wind power system are: Balancing Control Center level, Wind Power Plant level, and Wind Power Generator level. Our scopes are to smooth the wind power fluctuation and also ensure adequate battery life. In the new hybrid energy storage system (HESS) design for wind power generation application, the boundary levels of the state of charge of the battery and that of the supercapacitor are used in the control strategy. In the controller, some logic gates are also used to control the operating time durations of the battery. The sizing method is based on the average fluctuation of wind profiles of a specific wind station. The calculated battery size is dependent on the size of the supercapacitor, state of charge of the supercapacitor and battery wear. To accommodate the wind power fluctuation, a hybrid energy storage system (HESS) consisting of battery energy system (BESS) and super-capacitor is adopted in this project. A probability-based power capacity specification approach for the BESS and super-capacitors is proposed. Through this method the capacities of BESS and super-capacitor are properly designed to combine the characteristics of high energy density of BESS and the characteristics of high power density of super-capacitor. It turns out that the super-capacitor within HESS deals with the high power fluctuations, which contributes to the extension of BESS lifetime, and the super-capacitor can handle the peaks in wind power fluctuations without the severe penalty of round trip losses associated with a BESS. The proposed approach has been verified based on the real wind data from an existing wind power plant in Iowa. An intelligent controller that increases battery life within hybrid energy storage systems for wind application was developed. Comprehensive studies have been conducted and simulation results are analyzed. A permanent magnet synchronous generator, coupled with a variable speed wind turbine, is connected to a power grid (14-bus system). A rectifier, a DC-DC converter and an inverter are used to provide a complete model of the wind system. An Energy Storage System (ESS) is connected to a DC-link through a DC-DC converter. An intelligent controller is applied to the DC-DC converter to help the Voltage Source Inverter (VSI) to regulate output power and also to control the operation of the battery and supercapacitor. This ensures a longer life time for the batteries. The detailed model is simulated in PSCAD/EMTP. Additionally, economic analysis has been done for different methods that can reduce the wind power output fluctuation. These methods are, wind power curtailment, dumping loads, battery energy storage system and hybrid energy storage system. From the results, application of single advanced HESS can save more money for wind turbines owners. Generally the income would be the same for most of methods because the wind does not change and maximum power point tracking can be applied to most systems. On the other hand, the cost is the key point. For short term and small wind turbine, the BESS is the cheapest and applicable method while for large scale wind turbines and wind farms the application of advanced HESS would be the best method to reduce the power fluctuation. The key outcomes of this project include a new intelligent controller that can reduce energy exchanged between the battery and DC-link, reduce charging/discharging cycles, reduce depth of discharge and increase time interval between charge/discharge, and lower battery temperature. This improves the overall lifetime of battery energy storages. Additionally, a new design method based on probability help optimize the power capacity specification for BESS and super-capacitors. Recommendations include experimental imp

David Wenzhong Gao

2012-09-30T23:59:59.000Z

171

Fermi Large Area Telescope Observations of the Supernova Remnant G8.7-0.1  

Science Conference Proceedings (OSTI)

We present a detailed analysis of the GeV gamma-ray emission toward the supernova remnant (SNR) G8.7-0.1 with the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope. An investigation of the relationship between G8.7-0.1 and the TeV unidentified source HESS J1804-216 provides us with an important clue on diffusion process of cosmic rays if particle acceleration operates in the SNR. The GeV gamma-ray emission is extended with most of the emission in positional coincidence with the SNR G8.7-0.1 and a lesser part located outside the western boundary of G8.7-0.1. The region of the gamma-ray emission overlaps spatially connected molecular clouds, implying a physical connection for the gamma-ray structure. The total gamma-ray spectrum measured with LAT from 200 MeV-100 GeV can be described by a broken power-law function with a break of 2.4 {+-} 0.6 (stat) {+-} 1.2 (sys) GeV, and photon indices of 2.10 {+-} 0.06 (stat) {+-} 0.10 (sys) below the break and 2.70 {+-} 0.12 (stat) {+-} 0.14 (sys) above the break. Given the spatial association among the gamma rays, the radio emission of G8.7-0.1, and the molecular clouds, the decay of p0s produced by particles accelerated in the SNR and hitting the molecular clouds naturally explains the GeV gamma-ray spectrum. We also find that the GeV morphology is not well represented by the TeV emission from HESS J1804-216 and that the spectrum in the GeV band is not consistent with the extrapolation of the TeV gamma-ray spectrum. The spectral index of the TeV emission is consistent with the particle spectral index predicted by a theory that assumes energy-dependent diffusion of particles accelerated in an SNR. We discuss the possibility that the TeV spectrum originates from the interaction of particles accelerated in G8.7-0.1 with molecular clouds, and we constrain the diffusion coefficient of the particles.

Ajello, M.; Allafort, A.; /Stanford U., HEPL /KIPAC, Menlo Park /SLAC; Baldini, L.; /INFN, Pisa; Ballet, J.; /AIM, Saclay; Barbiellini, G.; /INFN, Trieste /Trieste U.; Bastieri, D.; /INFN, Padua /Padua U.; Bechtol, K.; /Stanford U., HEPL /KIPAC, Menlo Park /SLAC; Bellazzini, R.; /INFN, Pisa; Berenji, B.; Blandford, R.D.; Bloom, E.D.; /Stanford U., HEPL /KIPAC, Menlo Park /SLAC; Bonamente, E.; /INFN, Perugia /Perugia U.; Borgland, A.W.; /Stanford U., HEPL /KIPAC, Menlo Park /SLAC; Bregeon, J.; /INFN, Pisa; Brigida, M.; /Bari Polytechnic /INFN, Bari; Bruel, P.; /Ecole Polytechnique; Buehler, R.; /Stanford U., HEPL /KIPAC, Menlo Park /SLAC; Buson, S.; /INFN, Padua /Padua U.; Caliandro, G.A.; /CSIC, Catalunya; Cameron, R.A.; /Stanford U., HEPL /KIPAC, Menlo Park /SLAC; Caraveo, P.A.; /IASF, Milan /AIM, Saclay /INFN, Perugia /Perugia U. /Stanford U., HEPL /KIPAC, Menlo Park /SLAC /Unlisted, US /Naval Research Lab, Wash., D.C. /Perugia U. /ASDC, Frascati /Stanford U., HEPL /KIPAC, Menlo Park /SLAC /Montpellier U. /ASDC, Frascati /Udine U. /INFN, Trieste /Bari Polytechnic /INFN, Bari /Naval Research Lab, Wash., D.C. /Stanford U., HEPL /KIPAC, Menlo Park /SLAC /Bari Polytechnic /INFN, Bari /Ecole Polytechnique /NASA, Goddard /Stanford U., HEPL /KIPAC, Menlo Park /SLAC /Udine U. /INFN, Trieste /Trieste Observ. /Hiroshima U. /Nagoya U. /Bari Polytechnic /INFN, Bari /INFN, Bari /ASDC, Frascati /INFN, Perugia /Perugia U. /Bari Polytechnic /INFN, Bari /ASDC, Frascati /Bari Polytechnic /INFN, Bari /Bologna Observ. /Stanford U., HEPL /KIPAC, Menlo Park /SLAC /Naval Research Lab, Wash., D.C. /Alabama U., Huntsville /CSIC, Catalunya /Hiroshima U. /NASA, Goddard /Hiroshima U.; /more authors..

2012-09-14T23:59:59.000Z

172

Processos Ecossistêmicos em Planícies Alagáveis John M. Melack,  

NLE Websites -- All DOE Office Websites (Extended Search)

25 a 541. 25 a 541. 1 Processos Ecossistêmicos em Planícies Alagáveis John M. Melack, 1 Evelyn M. L. M. Novo, 2 Bruce R. Forsberg, 3 Maria T. F. Piedade, 3 e Laurence Maurice, 4 As planícies de inundação representam um componente importante da Bacia Amazônica central e influenciam a hidrologia, a ecologia e a biogeoquímica. Hess et al. (2003) utilizaram uma classificação de dados de radar de abertura sintética com 100 m de resolução para uma quadratura de 1,77 milhões de km 2 na Amazônia central e identificaram 17% como várzeas, a maioria delas inundadas durante parte do ano. A produção líquida total atribuída às florestas inundadas (com exceção de incrementos lenhosos), macrófitas aquáticas, fitoplâncton e perifíton para a quadratura

173

Entity State Ownership  

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

Northern California Power Agny Northern California Power Agny CA Political Subdivision 1 366,159 20,892.0 5.71 Constellation NewEnergy, Inc CT Power Marketer 2 33,816 2,550.5 7.54 HESS CORPORATION CT Power Marketer 1 106,596 5,490.0 5.15 American PowerNet DC Power Marketer 1 148,928 8,161.0 5.48 Reliant Energy Northeast LLC DC Power Marketer 1 200,803 13,152.0 6.55 Constellation NewEnergy, Inc IL Power Marketer 3 781,822 37,958.5 4.86 Massachusetts Bay Trans Authority MA Political Subdivision 3 55,875 6,106.0 10.93 NextEra Energy Power Marketing MA Power Marketer 1 284,229 7,954.4 2.80 American PowerNet MD Power Marketer 1 121,566 6,618.0 5.44 Constellation NewEnergy, Inc MD Power Marketer 2 151,684 13,222.6 8.72 PPL EnergyPlus LLC MD Power Marketer 1 9,108 544.5 5.98 Reliant Energy Northeast LLC MD Power Marketer 1 157,011 10,282.7 6.55 Constellation NewEnergy, Inc

174

Towards a Flexible Array Control and Operation Framework for CTA  

E-Print Network (OSTI)

The Cherenkov Telescope Array (CTA) \\cite{CTA:2010} will be the successor to current Imaging Atmospheric Cherenkov Telescopes (IACT) like H.E.S.S., MAGIC and VERITAS. CTA will improve in sensitivity by about an order of magnitude compared to the current generation of IACTs. The energy range will extend from well below 100 GeV to above 100 TeV. To accomplish these goals, CTA will consist of two arrays, one in each hemisphere, consisting of 50-80 telescopes and composed of three different telescope types with different mirror sizes. It will be the first open observatory for very high energy $\\gamma$-ray astronomy. The Array Control working group of CTA is currently evaluating existing technologies which are best suited for a project like CTA. The considered solutions comprise the ALMA Common Software (ACS), the OPC Unified Architecture (OPC UA) and the Data Distribution Service (DDS) for bulk data transfer. The first applications, like an automatic observation scheduler and the control software for some prototype instrumentation have been developed.

E. Birsin; J. Colomé; D. Hoffmann; H. Koeppel; G. Lamanna; T. Le Flour; A. Lopatin; E. Lyard; D. Melkumyan; I. Oya; J-L. Panazol; S. Schlenstedt; T. Schmidt; U. Schwanke; R. Walter; P. Wegner for the CTA Consortium

2012-11-23T23:59:59.000Z

175

Aspen Ecology in Rocky Mountain National Park: Age Distribution, Genetics, and the Effects of Elk Herbivory  

SciTech Connect

Lack of aspen (Populus tremuloides) recruitment and canopy replacement of aspen stands that grow on the edges of grasslands on the low-elevation elk (Cervus elaphus) winter range of Rocky Mountain National Park (RMNP) in Colorado has been a cause of concern for more than 70 years (Packard, 1942; Olmsted, 1979; Stevens, 1980; Hess, 1993; R.J. Monello, T.L. Johnson, and R.G. Wright, Rocky Mountain National Park, 2006, written commun.). These aspen stands are a significant resource since they are located close to the park's road system and thus are highly visible to park visitors. Aspen communities are integral to the ecological structure of montane and subalpine landscapes because they contain high native species richness of plants, birds, and butterflies (Chong and others, 2001; Simonson and others, 2001; Chong and Stohlgren, 2007). These low-elevation, winter range stands also represent a unique component of the park's plant community diversity since most (more than 95 percent) of the park's aspen stands grow in coniferous forest, often on sheltered slopes and at higher elevations, while these winter range stands are situated on the low-elevation ecotone between the winter range grasslands and some of the park's drier coniferous forests.

Tuskan, Gerald A [ORNL; Yin, Tongming [ORNL

2008-10-01T23:59:59.000Z

176

INVESTIGATION OF DEEP-WATER CIRCULATION MODES IN THE EARLY CENOZOIC USING NEODYMIUM ISOTOPES FROM FOSSIL FISH DEBRIS  

E-Print Network (OSTI)

The ocean’s deep-water circulation plays a large role in heat transport across the globe. Circulation in the modern begins where cold, dense surface waters of the North Atlantic and Southern oceans sink to form Atlantic Bottom water. However, this mode did not operate in the geologic past. A growing body of Nd isotope data from fossil fish debris is being used to reconstruct the ancient mode of deep-water circulation throughout the early Cenozoic greenhouse interval. Recent data from previous Ocean Drilling Program (ODP) sites suggest that a bipolar mode of meridional overturning circulation may have existed in the Pacific during the early Cenozoic, beginning ~65 million years ago and lasting until ~40 million years ago. Here I present new data from Deep Sea Drilling Project (DSDP) Site 464, Northern Hess Rise, to enhance the reconstruction of deep water mass composition as well as determine if a reductive cleaning step (“clean”) method is necessary during sample preparation. Site 464 ?Nd(t) values range from -.30 to less radiogenic values of -4.42 from ~56.0 to 32.3 million years ago, showing a shift from a North Pacific deep-water influence to a Southern Ocean influence. The comparison of “clean” versus “unclean” analyses indicates that both record the same seawater composition.

Jones, Landon 1989-

2011-05-01T23:59:59.000Z

177

Little Higgs Dark Matter  

E-Print Network (OSTI)

The introduction of T parity dramatically improves the consistency of Little Higgs models with precision electroweak data, and renders the lightest T-odd particle (LTP) stable. In the Littlest Higgs model with T parity, the LTP is typically the T-odd heavy photon, which is weakly interacting and can play the role of dark matter. We analyze the relic abundance of the heavy photon, including its coannihilations with other T-odd particles, and map out the regions of the parameter space where it can account for the observed dark matter. We evaluate the prospects for direct and indirect discovery of the heavy photon dark matter. The direct detection rates are quite low and a substantial improvement in experimental sensitivity would be required for observation. A substantial flux of energetic gamma rays is produced in the annihilation of the heavy photons in the galactic halo. This flux can be observed by the GLAST telescope, and, if the distribution of dark matter in the halo is favorable, by ground-based telescope arrays such as VERITAS and HESS.

Andreas Birkedal; Andrew Noble; Maxim Perelstein; Andrew Spray

2006-03-09T23:59:59.000Z

178

Dark Matter in the Private Higgs Model  

E-Print Network (OSTI)

The extremely large hierarchy observed in the fermion mass spectrum remains as one of the most puzzling and unresolved issues in particle physics. In a recent proposal, however, it was demonstrated that by introducing one Higgs doublet (or Private Higgs) per fermion this hierarchy could be made natural by making the Yukawa couplings between each fermion and its respective Higgs boson of order unity. Among the interesting predictions of the Private Higgs scenario is a variety of scalars which could be probed at future collider experiments and a possible dark matter candidate. In this paper, we study in some detail the dark matter sector of the Private Higgs model. We first calculate the annihilation cross sections of dark matter in this model and find that one can easily account for the observed density of dark matter in the Universe with relatively natural values of the model's parameters. Finally, we investigate the possibility of detecting Private Higgs dark matter indirectly via the observation of anomalous gamma rays originating from the galactic halo. We show that a substantial flux of photons can be produced from the annihilation of Private Higgs dark matter such that, if there is considerable clumping of dark matter in the galactic halo, the flux of these gamma rays could be observed by ground-based telescope arrays such as VERITAS and HESS.

C. B. Jackson

2008-04-23T23:59:59.000Z

179

Prospects for ultracold polar and magnetic chromium-closed-shell-atom molecules  

E-Print Network (OSTI)

The properties of the electronic ground state of the polar and paramagnetic chromium--closed-shell-atom molecules have been investigated. State-of-the-art \\textit{ab initio} techniques have been applied to compute the potential energy curves for the chromium--alkaline-earth-metal-atom, CrX (X = Be, Mg, Ca, Sr, Ba), and chromium--ytterbium, CrYb, molecules in the Born-Oppenheimer approximation for the $X^7\\Sigma^+$ high-spin electronic ground state. The spin restricted open-shell coupled cluster method restricted to single, double, and noniterative triple excitations, RCCSD(T), was employed and the scalar relativistic effects within Douglas-Kroll-Hess Hamiltonian or energy-consistent pseudopotentials were included. The permanent electric dipole moments and static electric dipole polarizabilities were computed. The leading long-range coefficients describing the dispersion interaction between atoms at large interatomic distances, $C_6$, are also reported. Molecules under investigation are an example of species p...

Tomza, Micha?

2013-01-01T23:59:59.000Z

180

Gamma ray astrophysics, the extragalactic background light, and new physics  

Science Conference Proceedings (OSTI)

Very high energy gamma-rays are expected to be absorbed by the extragalactic background light over cosmological distances via the process of electron-positron pair production. However, recent observations of cosmologically distant emitters by ground based gamma-ray telescopes might be indicative of a higher-than-expected degree of transparency of the universe. One mechanism to explain this observation is the oscillation between photons and axion-like-particles (ALPs). Here we explore this possibility, focusing on photon-ALP conversion in the magnetic fields in and round gamma-ray sources and in the magnetic field of the Milky Way, where some fraction of the ALP flux is converted back into photons. We show that this mechanism can be efficient in allowed regions of the ALP parameter space, as well as in typical configurations of the Galactic Magnetic Field. As case example, we consider the spectrum observed from a HESS source. We also discuss features of this scenario which could be used to distinguish it from standard or other exotic models.

Serpico, Pasquale D.; /Fermilab

2008-09-01T23:59:59.000Z

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181

The Milky Way as a Kiloparsec-Scale Axionscope  

SciTech Connect

Very high energy gamma-rays are expected to be absorbed by the extragalactic background light over cosmological distances via the process of electron-positron pair production. Recent observations of cosmologically distant gamma-ray emitters by ground based gamma-ray telescopes have, however, revealed a surprising degree of transparency of the universe to very high energy photons. One possible mechanism to explain this observation is the oscillation between photons and axion-like-particles (ALPs). Here we explore this possibility further, focusing on photon-ALP conversion in the magnetic fields in and around gamma-ray sources and in the magnetic field of the Milky Way, where some fraction of the ALP flux is converted back into photons. We show that this mechanism can be efficient in allowed regions of the ALP parameter space, as well as in typical configurations of the Galactic Magnetic Field. As case examples, we consider the spectrum observed from two HESS sources: 1ES1101-232 at redshift z = 0.186 and H 2356-309 at z = 0.165. We also discuss features of this scenario which could be used to distinguish it from standard or other exotic models.

Simet, Melanie; /Chicago U.; Hooper, Dan; Serpico, Pasquale D.; /Fermilab

2007-12-01T23:59:59.000Z

182

Advanced Microturbine Systems  

SciTech Connect

Dept. of Energy (DOE) Cooperative Agreement DE-FC02-00-CH11061 was originally awarded to Honeywell International, Inc. â?? Honeywell Power Systems Inc. (HPSI) division located in Albuquerque, NM in October 2000 to conduct a program titled Advanced Microturbine Systems (AMS). The DOE Advanced Microturbines Systems Program was originally proposed as a five-year program to design and develop a high efficiency, low emissions, durable microturbine system. The period of performance was to be October 2000 through September 2005. Program efforts were underway, when one year into the program Honeywell sold the intellectual property of Honeywell Power Systems Inc. and HPSI ceased business operations. Honeywell made an internal decision to restructure the existing program due to the HPSI shutdown and submitted a formal request to DOE on September 24, 2001 to transfer the Cooperative Agreement to Honeywell Engines, Systems and Services (HES&S) in Phoenix, AZ in order to continue to offer support for DOE's Advanced Microturbine Program. Work continued on the descoped program under Cooperative Agreement No. DE-FC26-00-CH11061 and has been completed.

None

2005-12-31T23:59:59.000Z

183

Galactic Diffuse Emissions  

DOE Green Energy (OSTI)

Interactions of cosmic rays with interstellar nucleons and photons make the Milky Way a bright, diffuse source of high-energy {gamma}-rays. Observationally, the results from EGRET, COMPTEL, and OSSE have now been extended to higher energies by ground-based experiments, with detections of diffuse emission in the Galactic center reported by H.E.S.S. in the range above 100 GeV and of diffuse emission in Cygnus by MILAGRO in the TeV range. In the range above 100 keV, INTEGRAL SPI has found that diffuse emission remains after point sources are accounted for. I will summarize current knowledge of diffuse {gamma}-ray emission from the Milky Way and review some open issues related to the diffuse emission -- some old, like the distribution of cosmic-ray sources and the origin of the 'excess' of GeV emission observed by EGRET, and some recently recognized, like the amount and distribution of molecular hydrogen not traced by CO emission -- and anticipate some of the advances that will be possible with the Large Area Telescope on GLAST. We plan to develop an accurate physical model for the diffuse emission, which will be useful for detecting and accurately characterizing emission from Galactic point sources as well as any Galactic diffuse emission from exotic processes, and for studying the unresolved extragalactic emission.

Digel, Seth W.; /SLAC

2007-10-25T23:59:59.000Z

184

Study of the Gamma-ray Spectrum from the Galactic Center in view of Multi-TeV Dark Matter Candidates  

E-Print Network (OSTI)

Motivated by the complex gamma-ray spectrum of the Galactic Center source now measured over five decades in energy, we revisit the issue of the role of dark matter annihilations in this interesting region. We reassess whether the emission measured by the HESS collaboration could be a signature of dark matter annihilation, and we use the {\\em Fermi} LAT spectrum to model the emission from SgrA*, using power-law spectral fits. We find that good fits are achieved by a power law with an index $\\sim 2.5-2.6$, in combination with a spectrum similar to the one observed from pulsar population and with a spectrum from a $\\gsi10$ TeV DM annihilating to a mixture of $b{\\bar b}$ and harder $\\tau^+ \\tau^-$ channels and with boost factors of the order of a hundred. Alternatively, we also consider the combination of a log-parabola fit with the DM contribution. Finally, as both the spectrum of gamma rays from the Galactic Center and the spectrum of cosmic ray electrons exhibit a cutoff at TeV energies, we study the dark matt...

Belikov, Alexander V; Silk, Joseph

2012-01-01T23:59:59.000Z

185

Chemical evolution with radial mixing  

E-Print Network (OSTI)

Models of the chemical evolution of our Galaxy are extended to include radial migration of stars and flow of gas through the disc. The models track the production of both iron and alpha elements. A model is chosen that provides an excellent fit to the metallicity distribution of stars in the Geneva-Copenhagen survey (GCS) of the solar neighbourhood, and an acceptable fit to the local Hess diagram. The model provides a good fit to the distribution of GCS stars in the age-metallicity plane although this plane was not used in the fitting process. Although this model's star-formation rate is monotonic declining, its disc naturally splits into an alpha-enhanced thick disc and a normal thin disc. In particular the model's distribution of stars in the ([O/Fe],[Fe/H]) plane resembles that of Galactic stars in displaying a ridge line for each disc. The thin-disc's ridge line is entirely due to stellar migration and there is the characteristic variation of stellar angular momentum along it that has been noted by Haywoo...

Schoenrich, Ralph

2008-01-01T23:59:59.000Z

186

VERY HIGH ENERGY {gamma}-RAY EMISSION FROM PASSIVE SUPERMASSIVE BLACK HOLES: CONSTRAINTS FOR NGC 1399  

Science Conference Proceedings (OSTI)

Very high energy (VHE, >100 GeV) {gamma}-rays are expected to be emitted from the vicinity of supermassive black holes (SMBHs), irrespective of their activity state. In the magnetosphere of rotating SMBH, efficient acceleration of charged particles can take place through various processes. These particles could reach energies up to E {approx} 10{sup 19} eV. VHE {gamma}-ray emission from these particles is then feasible via leptonic or hadronic processes. Therefore, passive systems, where the lack of a strong photon field allows the VHE {gamma}-rays to escape, are expected to be detected by Cherenkov telescopes. We present results from recent VHE experiments on the passive SMBH in the nearby elliptical galaxy NGC 1399. No {gamma}-ray signal has been found, neither by the H.E.S.S. experiment nor in the Fermi data analyzed here. We discuss possible implications for the physical characteristics of the system. We conclude that in a scenario where particles are accelerated in vacuum gaps in the magnetosphere, only a fraction {approx}0.3 of the gap is available for particle acceleration, indicating that the system is unlikely to be able to accelerate protons up to E {approx} 10{sup 19} eV.

Pedaletti, G.; Wagner, S. J. [Landessternwarte, Universitaet Heidelberg, Koenigstuhl, D-69117 Heidelberg (Germany); Rieger, F. M., E-mail: gpedalet@lsw.uni-heidelberg.de [Max-Planck-Institut fuer Kernphysik, P.O. Box 103980, D-69029 Heidelberg (Germany)

2011-09-10T23:59:59.000Z

187

MODELING PHOTODISINTEGRATION-INDUCED TeV PHOTON EMISSION FROM LOW-LUMINOSITY GAMMA-RAY BURSTS  

Science Conference Proceedings (OSTI)

Ultra-high-energy cosmic-ray heavy nuclei have recently been considered as originating from nearby low-luminosity gamma-ray bursts that are associated with Type Ibc supernovae. Unlike the power-law decay in long duration gamma-ray bursts, the light curve of these bursts exhibits complex UV/optical behavior: shock breakout dominated thermal radiation peaks at about 1 day, and, after that, nearly constant emission sustained by radioactive materials for tens of days. We show that the highly boosted heavy nuclei at PeV energy interacting with the UV/optical photon field will produce considerable TeV photons via the photodisintegration/photo-de-excitation process. It was later predicted that a thermal-like {gamma}-ray spectrum peaks at about a few TeV, which may serve as evidence of nucleus acceleration. The future observations by the space telescope Fermi and by the ground atmospheric Cherenkov telescopes such as H.E.S.S., VERITAS, and MAGIC will shed light on this prediction.

Liu Xuewen [Physics Department, Sichuan University, Chengdu 610065 (China); Wu Xuefeng; Lu Tan, E-mail: astrolxw@gmail.com, E-mail: xfwu@pmo.ac.cn, E-mail: t.lu@pmo.ac.cn [Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008 (China)

2012-05-15T23:59:59.000Z

188

Gamma-ray constraints on dark-matter annihilation to electroweak gauge and Higgs bosons  

E-Print Network (OSTI)

Dark-matter annihilation into electroweak gauge and Higgs bosons results in $\\gamma$-ray emission. We use observational upper limits on the fluxes of both line and continuum $\\gamma$-rays from the Milky Way Galactic Center and from Milky Way dwarf companion galaxies to set exclusion limits on allowed dark-matter masses. (Generally, Galactic Center $\\gamma$-ray line search limits from the Fermi-LAT and the H.E.S.S. experiments are most restrictive.) Our limits apply under the following assumptions: a) the dark matter species is a cold thermal relic with present mass density equal to the measured dark-matter density of the universe; b) dark-matter annihilation to standard-model particles is described in the non-relativistic limit by a single effective operator ${\\cal O} \\propto J_{DM}\\cdot J_{SM}$, where $J_{DM}$ is a standard-model singlet current consisting of dark-matter fields (Dirac fermions or complex scalars), and $J_{SM}$ is a standard-model singlet current consisting of electroweak gauge and Higgs bosons; and c) the dark-matter mass is in the range 5 GeV to 20 TeV. We consider, in turn, the 34 possible operators with mass dimension 8 or lower with non-zero s-wave annihilation channels satisfying the above assumptions. Our limits are presented in a large number of figures, one for each of the 34 possible operators; these limits can be grouped into 13 classes determined by the field content and structure of the operators. We also identify three classes of operators (coupling to the Higgs and $SU(2)_L$ gauge bosons) that can supply a 130 GeV line with the desired strength to fit the putative line signal in Fermi data, while saturating the relic density and satisfying all other indirect constraints we consider.

Michael A. Fedderke; Edward W. Kolb; Tongyan Lin; Lian-Tao Wang

2013-10-22T23:59:59.000Z

189

A General Investigation of Optimized Atmospheric Sample Duration  

SciTech Connect

ABSTRACT The International Monitoring System (IMS) consists of up to 80 aerosol and xenon monitoring systems spaced around the world that have collection systems sensitive enough to detect nuclear releases from underground nuclear tests at great distances (CTBT 1996; CTBTO 2011). Although a few of the IMS radionuclide stations are closer together than 1,000 km (such as the stations in Kuwait and Iran), many of them are 2,000 km or more apart. In the absence of a scientific basis for optimizing the duration of atmospheric sampling, historically scientists used a integration times from 24 hours to 14 days for radionuclides (Thomas et al. 1977). This was entirely adequate in the past because the sources of signals were far away and large, meaning that they were smeared over many days by the time they had travelled 10,000 km. The Fukushima event pointed out the unacceptable delay time (72 hours) between the start of sample acquisition and final data being shipped. A scientific basis for selecting a sample duration time is needed. This report considers plume migration of a nondecaying tracer using archived atmospheric data for 2011 in the HYSPLIT (Draxler and Hess 1998; HYSPLIT 2011) transport model. We present two related results: the temporal duration of the majority of the plume as a function of distance and the behavior of the maximum plume concentration as a function of sample collection duration and distance. The modeled plume behavior can then be combined with external information about sampler design to optimize sample durations in a sampling network.

Eslinger, Paul W.; Miley, Harry S.

2012-11-28T23:59:59.000Z

190

Sensitivity of the IceCube neutrino detector to dark matter annihilating in dwarf galaxies  

SciTech Connect

In this paper, we compare the relative sensitivities of gamma-ray and neutrino observations to the dark matter annihilation cross section in leptophilic models such as have been designed to explain PAMELA data. We investigate whether the high energy neutrino telescope IceCube will be competitive with current and upcoming searches by gamma-ray telescopes, such as the Atmospheric Cerenkov Telescopes (H.E.S.S., VERITAS, and MAGIC), or the Fermi Gamma-Ray Space Telescope, in detecting or constraining dark matter particles annihilating in dwarf spheroidal galaxies. We find that after 10 years of observation of the most promising nearby dwarfs, IceCube will have sensitivity comparable to the current sensitivity of gamma-ray telescopes only for very heavy (m{sub X} > or approx. 7 TeV) or relatively light (m{sub X} < or approx. 200 GeV) dark matter particles which annihilate primarily to {mu}{sup +{mu}-}. If dark matter particles annihilate primarily to {tau}{sup +{tau}-}, IceCube will have superior sensitivity only for dark matter particle masses below the 200 GeV threshold of current Atmospheric Cerenkov Telescopes. If dark matter annihilations proceed directly to neutrino-antineutrino pairs a substantial fraction of the time, IceCube will be competitive with gamma-ray telescopes for a much wider range of dark matter masses. K. F. would like to thank the Aspen Center for Physics and the Texas Cosmology Center, and P. S. would like to thank MCTP.

Sandick, Pearl [Theory Group and Texas Cosmology Center, University of Texas at Austin, Texas 78712 (United States); Spolyar, Douglas [Center for Particle Astrophysics, Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States); Department of Physics, University of California, Santa Cruz, California 95064 (United States); Buckley, Matthew [Department of Physics, California Institute of Technology, Pasadena, California 91125 (United States); Freese, Katherine [Michigan Center for Theoretical Physics, University of Michigan, Ann Arbor, Michigan 48109 (United States); Hooper, Dan [Center for Particle Astrophysics, Fermi National Accelerator Laboratory, Batavia, Illinois 60510 (United States); Department of Astronomy and Astrophysics, University of Chicago, Chicago, Illinois 60638 (United States)

2010-04-15T23:59:59.000Z

191

Blazing Cerenkov Flashes at the Horizons by Cosmic Rays and Neutrinos Induced Air-Showers  

E-Print Network (OSTI)

High Energy Cosmic Rays (C.R.) versus Neutrino and Neutralino induced Air-Shower maybe tested at Horizons by their muons, gamma and Cerenkov blazing signals. Inclined and Horizontal C.R. Showers (70-90 zenith angle) produce secondary (gamma, e+, e-) mostly suppressed by high column atmosphere depth. Earliest shower Cherenkov photons are diluted by large distances and by air opacity, while secondary penetrating muons and their successive decay into electrons and gamma, may revive additional Cerenkov lights. GeVs gamma telescopes at the top of the mountains or in Space may detect at horizons PeVs up to EeV C.R. and their secondaries. Details on arrival angle and column depth, shower shape, timing signature of photon flash intensity, may inform us on the altitude interaction and primary UHECR composition. Below the horizons, at zenith angle among copious single albedo muons, rare up-going showers traced by muon bundles would give evidence of rare tau Earth-Skimming neutrinos, at EeVs energies. Their rate may be comparable with 6.3 PeVs anti-neutrino electron induced air-shower (mostly hadronic) originated above and also below horizons, in interposed atmosphere by W resonance at Glashow peak. Additional and complementary UHE SUSY neutralinos at tens PeVs-EeV energy may blaze, by its characteristic electromagnetic signature. Their secondary shower blazing Cerenkov lights and distances might be disentangled from UHECR by Stereoscopic Telescopes such as Magic ones or Hess array experiment. The horizontal detection sensitivity of Magic in the present set up (if totally devoted to the Horizons Shower search) maybe already be comparable to AMANDA underground neutrino detector at PeVs energies.

D. Fargion

2004-12-21T23:59:59.000Z

192

Log-parabolic spectra and particle acceleration in blazars. III: SSC emission in the TeV band from Mkn 501  

E-Print Network (OSTI)

Curved broad-band spectral distributions of non-thermal sources like blazars are described well by a log-parabolic (LP) law where the second degree term measures the curvature. LP energy spectra can be obtained for relativistic electrons by means of a statistical acceleration mechanism whose probability of acceleration depends on energy. In this paper we compute the spectra radiated by an electron population via synchrotron (S) and Synchro-Self Compton(SSC) processes to derive the relations between the LP parameters. These spectra were obtained by means of an accurate numerical code. We found that the ratio between the curvature parameters of the S spectrum to that of the electrons is equal to about 0.2 instead of 0.25, the value foreseen in the delta approximation. Inverse Compton spectra are also intrinsically curved and can be approximated by a log-parabola only in limited ranges. The curvature parameter, estimated around the SED peak, may vary from a lower value than that of the S spectrum up to that of emitting electrons depending on whether the scattering is in the Thomson or in the Klein-Nishina regime. We applied this analysis to computing the SSC emission from the BL Lac object Mkn 501 during the large flare of April 1997. We fit simultaneous BeppoSAX and CAT data and reproduced intensities and spectral curvatures of both components with good accuracy. The large curvature observed in the TeV range was found to be mainly intrinsic, and therefore did not require a large pair production absorption against the extragalactic background. We regard this finding as an indication that the Universe is more transparent at these energies than previously assumed by several models found in the literature. This conclusion is supported by recent detection of two relatively high redshift blazars with H.E.S.S.

E. Massaro; A. Tramacere; M. Perri; P. Giommi; G. Tosti

2005-11-23T23:59:59.000Z

193

Chemical evolution with radial mixing  

E-Print Network (OSTI)

Models of the chemical evolution of our Galaxy are extended to include radial migration of stars and flow of gas through the disc. The models track the production of both iron and alpha elements. A model is chosen that provides an excellent fit to the metallicity distribution of stars in the Geneva-Copenhagen survey (GCS) of the solar neighbourhood, and a good fit to the local Hess diagram. The model provides a good fit to the distribution of GCS stars in the age-metallicity plane although this plane was not used in the fitting process. Although this model's star-formation rate is monotonic declining, its disc naturally splits into an alpha-enhanced thick disc and a normal thin disc. In particular the model's distribution of stars in the ([O/Fe],[Fe/H]) plane resembles that of Galactic stars in displaying a ridge line for each disc. The thin-disc's ridge line is entirely due to stellar migration and there is the characteristic variation of stellar angular momentum along it that has been noted by Haywood in survey data. Radial mixing of stellar populations with high sigma_z from inner regions of the disc to the solar neighbourhood provides a natural explanation of why measurements yield a steeper increase of sigma_z with age than predicted by theory. The metallicity gradient in the ISM is predicted to be steeper than in earlier models, but appears to be in good agreement with data for both our Galaxy and external galaxies. The models are inconsistent with a cutoff in the star-formation rate at low gas surface densities. The absolute magnitude of the disc is given as a function of time in several photometric bands, and radial colour profiles are plotted for representative times.

Ralph Schoenrich; James Binney

2008-09-17T23:59:59.000Z

194

A WASHINGTON PHOTOMETRIC SURVEY OF THE LARGE MAGELLANIC CLOUD FIELD STAR POPULATION  

SciTech Connect

We present photometry for an unprecedented database of some 5.5 million stars distributed throughout the Large Magellanic Cloud main body, from 21 fields covering a total area of 7.6 deg{sup 2}, obtained from Washington CT{sub 1} T{sub 2} CTIO 4 m MOSAIC data. Extensive artificial star tests over the whole mosaic image data set and the observed behavior of the photometric errors with magnitude demonstrate the accuracy of the morphology and clearly delineate the position of the main features in the color-magnitude diagrams (CMDs). The representative T{sub 1}(MS TO) mags are on average {approx}0.5 mag brighter than the T{sub 1} mags for the 100% completeness level of the respective field, allowing us to derive an accurate age estimate. We have analyzed the CMD Hess diagrams and used the peaks in star counts at the main sequence turnoff and red clump (RC) locations to age date the most dominant sub-population (or 'representative' population) in the stellar population mix. The metallicity of this representative population is estimated from the locus of the most populous red giant branch track. We use these results to derive age and metallicity estimates for all of our fields. The analyzed fields span age and metallicity ranges covering most of the galaxy's lifetime and chemical enrichment, i.e., ages and metallicities between {approx}1 and 13 Gyr and {approx}-0.2 and -1.2 dex, respectively. We show that the dispersions associated with the mean ages and metallicities represent in general a satisfactory estimate of the age/metallicity spread ({approx}1-3 Gyr/0.2-0.3 dex), although a few subfields have a slightly larger age/metallicity spread. Finally, we revisit the study of the vertical structure (VS) phenomenon, a striking feature composed of stars that extend from the bottom, bluest end of the RC to {approx}0.45 mag fainter. We confirm that the VS phenomenon is not clearly seen in most of the studied fields and suggest that its occurrence is linked to some other condition(s) in addition to the appropriate age, metallicity, and the necessary red giant star density.

Piatti, Andres E. [Instituto de Astronomia y Fisica del Espacio, CC 67, Suc. 28, 1428, Ciudad de Buenos Aires (Argentina); Geisler, Doug; Mateluna, Renee, E-mail: andres@iafe.uba.ar [Departamento de Astronomia, Universidad de Concepcion, Casilla 160-C, Concepcion (Chile)

2012-10-01T23:59:59.000Z

195

Spring Chinook Salmon Oncorhynchus tshawytscha Supplementation in the Clearwater Subbasin ; Nez Perce Tribal Hatchery Monitoring and Evaluation Project, 2007 Annual Report.  

DOE Green Energy (OSTI)

The Nez Perce Tribal Hatchery (NPTH) program has the following goals (BPA, et al., 1997): (1) Protect, mitigate, and enhance Clearwater Subbasin anadromous fish resources; (2) Develop, reintroduce, and increase natural spawning populations of salmon within the Clearwater Subbasin; (3) Provide long-term harvest opportunities for Tribal and non-Tribal anglers within Nez Perce Treaty lands within four generations (20 years) following project initiation; (4) Sustain long-term fitness and genetic integrity of targeted fish populations; (5) Keep ecological and genetic impacts to non-target populations within acceptable limits; and (6) Promote Nez Perce Tribal management of Nez Perce Tribal Hatchery Facilities and production areas within Nez Perce Treaty lands. The NPTH program was designed to rear and release 1.4 million fall and 625,000 spring Chinook salmon. Construction of the central incubation and rearing facility NPTH and spring Chinook salmon acclimation facilities were completed in 2003 and the first full term NPTH releases occurred in 2004 (Brood Year 03). Monitoring and evaluation plans (Steward, 1996; Hesse and Cramer, 2000) were established to determine whether the Nez Perce Tribal Hatchery program is achieving its stated goals. The monitoring and evaluation action plan identifies the need for annual data collection and annual reporting. In addition, recurring 5-year program reviews will evaluate emerging trends and aid in the determination of the effectiveness of the NPTH program with recommendations to improve the program's implementation. This report covers the Migratory Year (MY) 2007 period of the NPTH Monitoring & Evaluation (M&E) program. There are three NPTH spring Chinook salmon treatment streams: Lolo Creek, Newsome Creek, and Meadow Creek. In 2007, Lolo Creek received 140,284 Brood Year (BY) 2006 acclimated pre-smolts at an average weight of 34.9 grams per fish, Newsome Creek received 77,317 BY 2006 acclimated pre-smolts at an average of 24.9 grams per fish, and Meadow Creek received 53,425 BY 2006 direct stream release parr at an average of 4.7 grams per fish. Natural and hatchery origin spring Chinook salmon pre-smolt emigrants were monitored from September - November 2006 and smolts from March-June 2007. Data on adult returns were collected from May-September. A suite of performance measures were calculated including total adult and spawner escapement, juvenile production, and survival probabilities. These measures were used to evaluate the effectiveness of supplementation and provide information on the capacity of the natural environment to assimilate and support supplemented salmon populations.

Backman, Thomas; Sprague, Sherman; Bretz, Justin [Nez Perce Tribe

2009-06-10T23:59:59.000Z

196

Hints of the Existence of Axion-Like-Particles From the Gamma-Ray Spectra of Cosmological Sources  

Science Conference Proceedings (OSTI)

Axion Like Particles (ALPs) are predicted to couple with photons in the presence of magnetic fields. This effect may lead to a significant change in the observed spectra of gamma-ray sources such as AGNs. Here we carry out a detailed study that for the first time simultaneously considers in the same framework both the photon/axion mixing that takes place in the gamma-ray source and that one expected to occur in the intergalactic magnetic fields. An efficient photon/axion mixing in the source always means an attenuation in the photon flux, whereas the mixing in the intergalactic medium may result in a decrement and/or enhancement of the photon flux, depending on the distance of the source and the energy considered. Interestingly, we find that decreasing the value of the intergalactic magnetic field strength, which decreases the probability for photon/axion mixing, could result in an increase of the expected photon flux at Earth if the source is far enough. We also find a 30% attenuation in the intensity spectrum of distant sources, which occurs at an energy that only depends on the properties of the ALPs and the intensity of the intergalactic magnetic field, and thus independent of the AGN source being observed. Moreover, we show that this mechanism can easily explain recent puzzles in the spectra of distant gamma-ray sources, like the possible detection of TeV photons from 3C 66A (a source located at z=0.444) by MAGIC and VERITAS, which should not happen according to conventional models of photon propagation over cosmological distances. Another puzzle is the recent published lower limit to the EBL intensity at 3.6 {micro}m (which is almost twice larger as the previous one), which implies very hard spectra for some detected TeV gamma-ray sources located at z=0.1-0.2. The consequences that come from this work are testable with the current generation of gamma-ray instruments, namely Fermi (formerly known as GLAST) and imaging atmospheric Cherenkov telescopes like CANGAROO, HESS, MAGIC and VERITAS.

Sanchez-Conde, M.A.; /IAA, Granada /SLAC; Paneque, D.; Bloom, E.; /KIPAC, Menlo Park; Prada, F.; /IAA, Granada /UC, Santa Cruz; Dominguez, A.; /IAA, Granada /Seville U.

2009-06-23T23:59:59.000Z

197

On the Possible Association of Ultra High Energy Cosmic Rays with Nearby Active Galaxies  

SciTech Connect

Data collected by the Pierre Auger Observatory provide evidence for anisotropy in the arrival directions of cosmic rays (CRs) with energies >57 EeV that suggests a correlation with the positions of active galactic nuclei (AGN) located within {approx}75 Mpc. However, this analysis does not take into account AGN morphology. A detailed study of the sample of AGN whose positions correlate with the CR events shows that most of them are classified as Seyfert 2 and low-ionization nuclear emission-line region (LINER) galaxies which do not differ from other local AGN of the same types. Therefore, the claimed correlation between the CR events observed by the Pierre Auger Observatory and local active galaxies should be considered as resulting from a chance coincidence, if the production of the highest energy CRs is not episodic in nature, but operates in a single object on long ({ge} Myr) timescales. Additionally, most of the selected sources do not show significant jet activity, and hence--in the framework of the jet paradigm--there are no reasons for expecting them to accelerate CRs up to the highest energies, {approx}10{sup 20} eV, at all. If the extragalactic magnetic fields and the sources of these CRs are coupled with matter, it is possible that the deflection angle is larger than expected in the case of a uniform source distribution due to effectively larger fields. A future analysis has to take into account AGN morphology and may yield a correlation with a larger deflection angle and/or more distant sources. We further argue that Cen A alone could be associated with at least 4 events due to its large radio extent, and Cen B can be associated with more than 1 event due to its proximity to the Galactic plane and, correspondingly, the stronger Galactic magnetic field the ultra high energy CRs (UHECRs) encounter during propagation. If the UHECRs associated with these events are indeed accelerated by Cen A and Cen B, their deflection angles may provide information on the structure of the magnetic field in the direction of these putative sources. Future -ray observations (by, e.g., Gamma-Ray Large Area Space Telescope [GLAST], High Energy Stereoscopic System [HESS]) may provide additional clues to the nature of the accelerators of the UHECRs in the local Universe.

Moskalenko, Igor V.; Stawarz, Lukasz; Porter, Troy A.; Cheung, Chi C.

2008-05-14T23:59:59.000Z

198

DIFFUSE HARD X-RAY EMISSION IN STARBURST GALAXIES AS SYNCHROTRON FROM VERY HIGH ENERGY ELECTRONS  

SciTech Connect

The origin of the diffuse hard X-ray (2-10 keV) emission from starburst galaxies is a long-standing problem. We suggest that synchrotron emission of 10-100 TeV electrons and positrons (e {sup {+-}}) can contribute to this emission, because starbursts have strong magnetic fields. We consider three sources of e {sup {+-}} at these energies: (1) primary electrons directly accelerated by supernova remnants, (2) pionic secondary e {sup {+-}} created by inelastic collisions between cosmic ray (CR) protons and gas nuclei in the dense interstellar medium of starbursts, and (3) pair e {sup {+-}} produced between the interactions between 10 and 100 TeV {gamma}-rays and the intense far-infrared (FIR) radiation fields of starbursts. We create one-zone steady-state models of the CR population in the Galactic center (R {<=} 112 pc), NGC 253, M82, and Arp 220's nuclei, assuming a power-law injection spectrum for electrons and protons. We consider different injection spectral slopes, magnetic field strengths, CR acceleration efficiencies, and diffusive escape times, and include advective escape, radiative cooling processes, and secondary and pair e {sup {+-}}. We compare these models to extant radio and GeV and TeV {gamma}-ray data for these starbursts, and calculate the diffuse synchrotron X-ray and inverse Compton (IC) luminosities of these starbursts in the models which satisfy multiwavelength constraints. If the primary electron spectrum extends to {approx}PeV energies and has a proton/electron injection ratio similar to the Galactic value, we find that synchrotron emission contributes 2%-20% of their unresolved, diffuse hard X-ray emission. However, there is great uncertainty in this conclusion because of the limited information on the CR electron spectrum at these high energies. IC emission is likewise a minority of the unresolved X-ray emission in these starbursts, from 0.1% in the Galactic center to 10% in Arp 220's nuclei, with the main uncertainty being the starbursts' magnetic field. We also model generic starbursts, including submillimeter galaxies, in the context of the FIR-X-ray relation, finding that anywhere between 0% and 16% of the total hard X-ray emission is synchrotron for different parameters, and up to 2% in the densest starbursts assuming an E {sup -2.2} injection spectrum and a diffusive escape time of 10 Myr (E/3 GeV){sup -1/2} (h/100 pc). Neutrino observations by IceCube and TeV {gamma}-ray data from HESS, VERITAS, and CTA can further constrain the synchrotron X-ray emission of starbursts. Our models do not constrain the possibility of hard, second components of primary e {sup {+-}} from sources like pulsars in starbursts, which could enhance the synchrotron X-ray emission further.

Lacki, Brian C. [Institute for Advanced Study, Princeton, NJ 08540 (United States)] [Institute for Advanced Study, Princeton, NJ 08540 (United States); Thompson, Todd A. [Department of Astronomy, The Ohio State University, Columbus, OH 43210 (United States)] [Department of Astronomy, The Ohio State University, Columbus, OH 43210 (United States)

2013-01-01T23:59:59.000Z

199

Final Report: Assessment of Combined Heat and Power Premium Power Applications in California  

Science Conference Proceedings (OSTI)

This report analyzes the current economic and environmental performance of combined heat and power (CHP) systems in power interruption intolerant commercial facilities. Through a series of three case studies, key trade-offs are analyzed with regard to the provision of black-out ridethrough capability with the CHP systems and the resutling ability to avoid the need for at least some diesel backup generator capacity located at the case study sites. Each of the selected sites currently have a CHP or combined heating, cooling, and power (CCHP) system in addition to diesel backup generators. In all cases the CHP/CCHP system have a small fraction of the electrical capacity of the diesel generators. Although none of the selected sites currently have the ability to run the CHP systems as emergency backup power, all could be retrofitted to provide this blackout ride-through capability, and new CHP systems can be installed with this capability. The following three sites/systems were used for this analysis: (1) Sierra Nevada Brewery - Using 1MW of installed Molten Carbonate Fuel Cells operating on a combination of digestor gas (from the beer brewing process) and natural gas, this facility can produce electricty and heat for the brewery and attached bottling plant. The major thermal load on-site is to keep the brewing tanks at appropriate temperatures. (2) NetApp Data Center - Using 1.125 MW of Hess Microgen natural gas fired reciprocating engine-generators, with exhaust gas and jacket water heat recovery attached to over 300 tons of of adsorption chillers, this combined cooling and power system provides electricity and cooling to a data center with a 1,200 kW peak electrical load. (3) Kaiser Permanente Hayward Hospital - With 180kW of Tecogen natural gas fired reciprocating engine-generators this CHP system generates steam for space heating, and hot water for a city hospital. For all sites, similar assumptions are made about the economic and technological constraints of the power generation system. Using the Distributed Energy Resource Customer Adoption Model (DER-CAM) developed at the Lawrence Berkeley National Laboratory, we model three representative scenarios and find the optimal operation scheduling, yearly energy cost, and energy technology investments for each scenario below: Scenario 1 - Diesel generators and CHP/CCHP equipment as installed in the current facility. Scenario 1 represents a baseline forced investment in currently installed energy equipment. Scenario 2 - Existing CHP equipment installed with blackout ride-through capability to replace approximately the same capacity of diesel generators. In Scenario 2 the cost of the replaced diesel units is saved, however additional capital cost for the controls and switchgear for blackout ride-through capability is necessary. Scenario 3 - Fully optimized site analysis, allowing DER-CAM to specify the number of diesel and CHP/CCHP units (with blackout ride-through capability) that should be installed ignoring any constraints on backup generation. Scenario 3 allows DER-CAM to optimize scheduling and number of generation units from the currently available technologies at a particular site. The results of this analysis, using real data to model the optimal schedulding of hypothetical and actual CHP systems for a brewery, data center, and hospital, lead to some interesting conclusions. First, facilities with high heating loads will typically prove to be the most appropriate for CHP installation from a purely economic standpoint. Second, absorption/adsorption cooling systems may only be economically feasible if the technology for these chillers can increase above current best system efficiency. At a coefficient of performance (COP) of 0.8, for instance, an adsorption chiller paired with a natural gas generator with waste heat recovery at a facility with large cooling loads, like a data center, will cost no less on a yearly basis than purchasing electricity and natural gas directly from a utility. Third, at marginal additional cost, if the reliability of CHP systems proves to be at

Norwood, Zack; Lipman, Tim; Marnay, Chris; Kammen, Dan

2008-09-30T23:59:59.000Z

200

DISCLAIMER  

Office of Legacy Management (LM)

PREFACE PREFACE T h i s r e p o r t combines a l l flow and p r e s s u r e b u i l d - u p d a t a c o l l e c t e d on t h e two w e l l s a s s o c i a t e d w i t h P r o j e c t R u l i s o n . A l l s u r f a c e p r e s s u r e s shown t h r o u g h o u t t h i s r e p o r t were measured e i t h e r with a dead weight t e s t e r o r w i t h c o n v e n t i o n a l p r e s s u r e gauges. Bottom h o l e p r e s s u r e s were measured u s i n g an Amerada Type RPG-3 bottom h o l e p r e s s u r e gauge. Flow r a t e s were measured by u s i n g e i t h e r a c o n v e n t i o n a l o r i f i c e f l o w meter o r a c r i t i c a l flow p r o v e r . PROJECT RULISON - WELL TEST DATA TABLE OF CONTENTS Page No. SECTION I - HAYWARD "A" #25-95 (R-E) Pressure Build-up NO. 1 Pressure Drawdown No. 1 Pressure Build-up No. 2 SECTION I 1 - HAYWARD #25-95 (R-EX) Calibration Flow Period Flow Test No. 1 Pressure Build-up NO. 1 Flow Test No. 2 Pressure Build-up NO. 2