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Note: This page contains sample records for the topic "number natural abundance" 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.


1

Colorado Natural Gas Number of Residential Consumers (Number...  

Gasoline and Diesel Fuel Update (EIA)

Residential Consumers (Number of Elements) Colorado Natural Gas Number of Residential Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

2

Colorado Natural Gas Number of Industrial Consumers (Number of...  

Gasoline and Diesel Fuel Update (EIA)

Industrial Consumers (Number of Elements) Colorado Natural Gas Number of Industrial Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

3

Colorado Natural Gas Number of Commercial Consumers (Number of...  

Gasoline and Diesel Fuel Update (EIA)

Commercial Consumers (Number of Elements) Colorado Natural Gas Number of Commercial Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

4

Connecticut Natural Gas Number of Residential Consumers (Number...  

Gasoline and Diesel Fuel Update (EIA)

Residential Consumers (Number of Elements) Connecticut Natural Gas Number of Residential Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6...

5

Connecticut Natural Gas Number of Commercial Consumers (Number...  

Gasoline and Diesel Fuel Update (EIA)

Commercial Consumers (Number of Elements) Connecticut Natural Gas Number of Commercial Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

6

Connecticut Natural Gas Number of Industrial Consumers (Number...  

Annual Energy Outlook 2012 (EIA)

Industrial Consumers (Number of Elements) Connecticut Natural Gas Number of Industrial Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7...

7

,"New York Number of Natural Gas Consumers"  

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

1: Residential" "Sourcekey","NA1501SNY8","NA1508SNY8","NA1509SNY8" "Date","New York Natural Gas Number of Residential Consumers (Count)","New York Natural Gas Number...

8

California Natural Gas Number of Residential Consumers (Number of Elements)  

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

Residential Consumers (Number of Elements) Residential Consumers (Number of Elements) California Natural Gas Number of Residential Consumers (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5 Year-6 Year-7 Year-8 Year-9 1980's 7,626 7,904,858 8,113,034 8,313,776 1990's 8,497,848 8,634,774 8,680,613 8,726,187 8,790,733 8,865,541 8,969,308 9,060,473 9,181,928 9,331,206 2000's 9,370,797 9,603,122 9,726,642 9,803,311 9,957,412 10,124,433 10,329,224 10,439,220 10,515,162 10,510,950 2010's 10,542,584 10,625,190 10,681,916 - = No Data Reported; -- = Not Applicable; NA = Not Available; W = Withheld to avoid disclosure of individual company data. Release Date: 12/12/2013 Next Release Date: 1/7/2014 Referring Pages: Number of Natural Gas Residential

9

Lignin dynamics in arable soils as determined by 13C natural abundance.  

E-Print Network (OSTI)

??Lignin is the second most abundant polymer in nature after the polysaccharides cellulose and hemicellulose. It is a main component in plant cell walls, where… (more)

Hofmann, A

2009-01-01T23:59:59.000Z

10

Research on the Natural Abundance of Deuterium and Other Isotopes in Nature. Final Report for Period Ending September 30, 1958  

DOE R&D Accomplishments (OSTI)

[Research from September 1957 to 1958 plus a] bibliography, containing about 78 references, on the natural abundance of deuterium and other isotopes in nature is presented. (W.L.H.)

Urey, H. C.

1959-10-31T23:59:59.000Z

11

Colorado Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2012 (EIA)

Gas and Gas Condensate Wells (Number of Elements) Colorado Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

12

California Natural Gas Number of Gas and Gas Condensate Wells...  

Annual Energy Outlook 2012 (EIA)

Gas and Gas Condensate Wells (Number of Elements) California Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

13

Louisiana Natural Gas Number of Gas and Gas Condensate Wells...  

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

Gas and Gas Condensate Wells (Number of Elements) Louisiana Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

14

Michigan Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2012 (EIA)

Gas and Gas Condensate Wells (Number of Elements) Michigan Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

15

Oklahoma Natural Gas Number of Gas and Gas Condensate Wells ...  

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

Gas and Gas Condensate Wells (Number of Elements) Oklahoma Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

16

Virginia Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2012 (EIA)

Gas and Gas Condensate Wells (Number of Elements) Virginia Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

17

Tennessee Natural Gas Number of Gas and Gas Condensate Wells...  

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

Gas and Gas Condensate Wells (Number of Elements) Tennessee Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

18

Pennsylvania Natural Gas Number of Gas and Gas Condensate Wells...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Pennsylvania Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

19

Arkansas Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2012 (EIA)

Gas and Gas Condensate Wells (Number of Elements) Arkansas Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

20

Maryland Natural Gas Number of Gas and Gas Condensate Wells ...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Maryland Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

Note: This page contains sample records for the topic "number natural abundance" 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

Illinois Natural Gas Number of Gas and Gas Condensate Wells ...  

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

Gas and Gas Condensate Wells (Number of Elements) Illinois Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

22

Missouri Natural Gas Number of Gas and Gas Condensate Wells ...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Missouri Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

23

Mississippi Natural Gas Number of Gas and Gas Condensate Wells...  

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

Gas and Gas Condensate Wells (Number of Elements) Mississippi Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

24

Nebraska Natural Gas Number of Gas and Gas Condensate Wells ...  

Annual Energy Outlook 2012 (EIA)

Gas and Gas Condensate Wells (Number of Elements) Nebraska Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

25

Alabama Natural Gas Number of Gas and Gas Condensate Wells (Number...  

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

Gas and Gas Condensate Wells (Number of Elements) Alabama Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

26

Oregon Natural Gas Number of Gas and Gas Condensate Wells (Number...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Oregon Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

27

Montana Natural Gas Number of Gas and Gas Condensate Wells (Number...  

Annual Energy Outlook 2012 (EIA)

Gas and Gas Condensate Wells (Number of Elements) Montana Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

28

Arizona Natural Gas Number of Gas and Gas Condensate Wells (Number...  

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

Gas and Gas Condensate Wells (Number of Elements) Arizona Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

29

Texas Natural Gas Number of Gas and Gas Condensate Wells (Number...  

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

Gas and Gas Condensate Wells (Number of Elements) Texas Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

30

Wyoming Natural Gas Number of Gas and Gas Condensate Wells (Number...  

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

Gas and Gas Condensate Wells (Number of Elements) Wyoming Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

31

U.S. Natural Gas Number of Gas and Gas Condensate Wells (Number...  

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

Gas and Gas Condensate Wells (Number of Elements) U.S. Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

32

Utah Natural Gas Number of Gas and Gas Condensate Wells (Number...  

Annual Energy Outlook 2012 (EIA)

Gas and Gas Condensate Wells (Number of Elements) Utah Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

33

Alaska Natural Gas Number of Gas and Gas Condensate Wells (Number...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Alaska Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

34

Nevada Natural Gas Number of Gas and Gas Condensate Wells (Number...  

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

Gas and Gas Condensate Wells (Number of Elements) Nevada Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

35

Indiana Natural Gas Number of Gas and Gas Condensate Wells (Number...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Indiana Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

36

Kansas Natural Gas Number of Gas and Gas Condensate Wells (Number...  

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

Gas and Gas Condensate Wells (Number of Elements) Kansas Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

37

Ohio Natural Gas Number of Gas and Gas Condensate Wells (Number...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) Ohio Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

38

Colorado Number of Natural Gas Consumers  

Annual Energy Outlook 2012 (EIA)

,606,602 1,622,434 1,634,587 1,645,716 1,659,808 1,672,312 1986-2013 Sales 1,634,582 1,645,711 1,659,803 1,672,307 1997-2013 Transported 5 5 5 5 1997-2013 Commercial Number of...

39

Connecticut Number of Natural Gas Consumers  

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

487,320 489,349 490,185 494,970 504,138 513,492 1986-2013 Sales 489,380 494,065 503,241 512,110 1997-2013 Transported 805 905 897 1,382 1997-2013 Commercial Number of Consumers...

40

Idaho Number of Natural Gas Consumers  

Gasoline and Diesel Fuel Update (EIA)

36,191 342,277 346,602 350,871 353,963 359,889 1987-2013 Sales 346,602 350,871 353,963 359,889 1997-2013 Commercial Number of Consumers 37,320 38,245 38,506 38,912 39,202 39,722...

Note: This page contains sample records for the topic "number natural abundance" 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

High-precision optical measurements of 13C/12C isotope ratios in organic compounds at natural abundance  

Science Journals Connector (OSTI)

High-precision...compounds at natural abundance...catalytic combustor, and an isotopic...challenge to the high-cost and...carbon dioxide gas, using...temperature and pressure from which...of carbon gases . Spectrochim...2008 ) High precision...compounds at natural abundance...catalytic combustor, and...

Richard N. Zare; Douglas S. Kuramoto; Christa Haase; Sze M. Tan; Eric R. Crosson; Nabil M. R. Saad

2009-01-01T23:59:59.000Z

42

Families and clustering in a natural numbers network  

Science Journals Connector (OSTI)

We develop a network in which the natural numbers are the vertices. The decomposition of natural numbers by prime numbers is used to establish the connections. We perform data collapse and show that the degree distribution of these networks scales linearly with the number of vertices. We explore the families of vertices in connection with prime numbers decomposition. We compare the average distance of the network and the clustering coefficient with the distance and clustering coefficient of the corresponding random graph. In case we set connections among vertices each time the numbers share a common prime number the network has properties similar to a random graph. If the criterion for establishing links becomes more selective, only prime numbers greater than pl are used to establish links, where the network has high clustering coefficient.

Gilberto Corso

2004-03-18T23:59:59.000Z

43

Natural Gas Development and Grassland Songbird Abundance in Southwestern Saskatchewan: The Impact of Gas Wells and Cumulative Disturbance .  

E-Print Network (OSTI)

??The quantity and quality of remaining grasslands in southwestern Saskatchewan, Canada, are threatened by expansion of natural gas development. The number of natural gas wells… (more)

Bogard, Holly Jayne Kalyn

2011-01-01T23:59:59.000Z

44

Federal Offshore--Gulf of Mexico Natural Gas Number of Gas and...  

Gasoline and Diesel Fuel Update (EIA)

Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Federal Offshore--Gulf of Mexico Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements)...

45

Effects of Long-lived 10 MeV Scale Sterile Neutrino on Primordial Elemental Abundances and Effective Neutrino Number  

E-Print Network (OSTI)

The primordial lithium abundance inferred from observations of metal-poor stars is ~3 times smaller than the theoretical value in standard big bang nucleosynthesis (BBN) model. We assume a simple model including a sterile neutrino nu_H with mass of O(10) MeV which decays long after BBN. We then investigate cosmological effects of a sterile neutrino decay. We formulate the injection spectrum of nonthermal photons induced by electrons and positrons generated at the nu_H decay, as a function of the nu_H mass and the photon temperature. We then consistently solve (1) the cosmic thermal history, (2) nonthermal nucleosynthesis induced by the nonthermal photons, (3) the baryon-to-photon ratio eta, and (4) the effective neutrino number N_eff. Amounts of energy injection at the nu_H decay are constrained from limits on primordial D and 7Li abundances, the N_eff value, and the cosmic microwave background energy spectrum. We find that 7Be is photodisintegrated and the Li problem is partially solved for the lifetime 10^4-10^5 s and the mass >~ 14 MeV. 7Be destruction by more than a factor of 3 is not possible because of an associated D over-destruction. In the parameter region, the eta value is decreased slightly, while the N_eff value is increased by a factor of <~ 1. In this study, errors in photodisintegration cross sections of 7Be(g, a)3He and 7Li(g, a)3H that have propagated through literatures are corrected. It is then found that the new photodisintegration rates are 2.3 to 2.5 times smaller than the old rates, so that efficiencies of 7Be and 7Li photodisintegration are significantly smaller.

Hiroyuki Ishida; Motohiko Kusakabe; Hiroshi Okada

2014-08-11T23:59:59.000Z

46

South Dakota Natural Gas Number of Gas and Gas Condensate Wells...  

Gasoline and Diesel Fuel Update (EIA)

Gas and Gas Condensate Wells (Number of Elements) South Dakota Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

47

New York Natural Gas Number of Gas and Gas Condensate Wells ...  

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

Gas and Gas Condensate Wells (Number of Elements) New York Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4 Year-5...

48

West Virginia Natural Gas Number of Gas and Gas Condensate Wells...  

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

Gas and Gas Condensate Wells (Number of Elements) West Virginia Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

49

North Dakota Natural Gas Number of Gas and Gas Condensate Wells...  

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

Gas and Gas Condensate Wells (Number of Elements) North Dakota Natural Gas Number of Gas and Gas Condensate Wells (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3 Year-4...

50

Natural Gas: From Shortages to Abundance in the U.S.  

E-Print Network (OSTI)

The recent dramatic and largely unanticipated growth in the current and expected future production of shale gas, and the related developments in the production of shale oil, have dramatically changed the energy future of the U.S. and potentially of the world compared to what experts were forecasting only a few years ago. These changes would not have been realized as quickly and efficiently absent deregulation of the wellhead price of natural gas, unbundling of gas supplies from pipeline transportation services, the associated development of efficient liquid markets for natural gas, and reforms to the licensing and regulation of prices for gas pipelines charge to move gas from where it is produced to where it is consumed. This economic platform supported the integration of technological advances in vertical drilling, downhole telemetry, horizontal drilling, monitoring and control of deep drilling equipment, and hydraulic fracturing to exploit economically shale gas deposits that were identified long ago, but considered to be uneconomical until recently. I. Natural Gas Wellhead Price and Pipeline Regulation Federal regulation of the natural gas industry began with the Natural Gas Act of 1938 (NGA). The NGA gave the Federal Power Commission (FPC), later the Federal Energy Regulatory Commission (FERC), the authority to license the construction and expansion of new interstate natural gas pipelines, to ensure that they are operated safely, and to regulate the prices 1

Paul L. Joskow

2012-01-01T23:59:59.000Z

51

NATURE BIOTECHNOLOGY VOLUME 24 NUMBER 2 FEBRUARY 2006 139 A DNA flu vaccine in practice  

E-Print Network (OSTI)

NATURE BIOTECHNOLOGY VOLUME 24 NUMBER 2 FEBRUARY 2006 139 A DNA flu vaccine in practice in Biotechnology Progress (21, 1577­1592, 2005) and suggest that though challenging, it should be possible. However

Church, George M.

52

NATURE BIOTECHNOLOGY VOLUME 25 NUMBER 6 JUNE 2007 627 DNA synthesis and biological security  

E-Print Network (OSTI)

NATURE BIOTECHNOLOGY VOLUME 25 NUMBER 6 JUNE 2007 627 DNA synthesis and biological security Hans Biotechnology; Han-Oh Park is at Bioneer; Bas Reichert is at BaseClear B.V.; Ralf Wagner is at the University

Church, George M.

53

Purification, Recovery, and Laser-Driven Fluorination of Silicon from Dissolved and Particulate Silica for the Measurement of Natural Stable Isotope Abundances  

Science Journals Connector (OSTI)

Purification, Recovery, and Laser-Driven Fluorination of Silicon from Dissolved and Particulate Silica for the Measurement of Natural Stable Isotope Abundances ... At least three simple techniques exist for this:? fusion of SiO2 with Na2CO3 to form water-soluble sodium silicate, dissolution in HF, or dissolution in NaOH. ...

Christina L. De La Rocha; Mark A. Brzezinski; Michael J. DeNiro

1996-11-01T23:59:59.000Z

54

N-15 NMR spectra of naturally abundant nitrogen in soil and aquatic natural organic matter samples of the International Humic Substances Society  

SciTech Connect

The naturally abundant nitrogen in soil and aquatic NOM samples from the International Humic Substances Society has been characterized by solid state CP/MAS ¹?N NMR. Soil samples include humic and fulvic acids from the Elliot soil, Minnesota Waskish peat and Florida Pahokee peat, as well as the Summit Hill soil humic acid and the Leonardite humic acid. Aquatic samples include Suwannee River humic, fulvic and reverse osmosis isolates, Nordic humic and fulvic acids and Pony Lake fulvic acid. Additionally, Nordic and Suwannee River XAD-4 acids and Suwannee River hydrophobic neutral fractions were analyzed. Similar to literature reports, amide/aminoquinone nitrogens comprised the major peaks in the solid state spectra of the soil humic and fulvic acids, along with heterocyclic and amino sugar/terminal amino acid nitrogens. Spectra of aquatic samples, including the XAD-4 acids, contain resolved heterocyclic nitrogen peaks in addition to the amide nitrogens. The spectrum of the nitrogen enriched, microbially derived Pony Lake, Antarctica fulvic acid, appeared to contain resonances in the region of pyrazine, imine and/or pyridine nitrogens, which have not been observed previously in soil or aquatic humic substances by ¹?N NMR. Liquid state ¹?N NMR experiments were also recorded on the Elliot soil humic acid and Pony Lake fulvic acid, both to examine the feasibility of the techniques, and to determine whether improvements in resolution over the solid state could be realized. For both samples, polarization transfer (DEPT) and indirect detection (¹H–¹?N gHSQC) spectra revealed greater resolution among nitrogens directly bonded to protons. The amide/aminoquinone nitrogens could also be observed by direct detection experiments.

Thorn, Kevin A.; Cox, Larry G.

2009-02-28T23:59:59.000Z

55

NATURE BIOTECHNOLOGY VOLUME 24 NUMBER 5 MAY 2006 545 RNA synthetic biology  

E-Print Network (OSTI)

synthetic biology efforts have focused on engineering gene cir- cuits that rely on protein-DNA interactionsNATURE BIOTECHNOLOGY VOLUME 24 NUMBER 5 MAY 2006 545 RNA synthetic biology Farren J Isaacs1, Daniel two years efforts in synthetic biology have produced novel, synthetic RNA components capable

Collins, James J.

56

NATURE BIOTECHNOLOGY VOLUME 26 NUMBER 2 FEBRUARY 2008 169 How biotech can transform biofuels  

E-Print Network (OSTI)

NATURE BIOTECHNOLOGY VOLUME 26 NUMBER 2 FEBRUARY 2008 169 How biotech can transform biofuels Lee R, biotechnological solutions should focus on optimizing the conversion of biomass to sugars. Enthusiasm for using- tional biotechnological paths to producing energy also receiving attention. The proposi- tion that energy

California at Riverside, University of

57

NATURE BIOTECHNOLOGY VOLUME 25 NUMBER 5 MAY 2007 509 To the editor  

E-Print Network (OSTI)

of tests and regulatory scrutiny before commercialization. The associated processes of experimentationNATURE BIOTECHNOLOGY VOLUME 25 NUMBER 5 MAY 2007 509 To the editor: The regulatory approval process to the development and commercialization of new cropping technologies. For some crops these barriers may

Bradford, Kent

58

Nature Methods Minimalistic encapsulated proteomic sample processing applied to copy number  

E-Print Network (OSTI)

Nature Methods Minimalistic encapsulated proteomic sample processing applied to copy number Supplementary Figure 1 Comparison of SILAC-based ratios using different sample processing conditions steps of the iST sample preparation workflow. It further shows how to troubleshoot the method in case

Cai, Long

59

Turbulent natural convection in a horizontal layer of small-Prandtl-number fluid  

SciTech Connect

Turbulent natural convection in a horizontal layer of liquid metal confined between two infinite rigid plates is studied theoretically. The layer, with uniformly distributed energy sources in the fluid, is heated from below and cooled from above. An approximate analysis of the Boussinesq equations of motion is performed for the case of small-Prandtl-number fluids to determine the temperature profiles in three different thermal regions of the layer. By matching these profiles in the regions of overlap, analytical expressions are derived for the lower and upper surface Nusselt numbers and the dimensionless turbulent core temperature as functions of the internal and external Rayleigh numbers defined respectively in terms of the volumetric heating rate and surface-to-surface temperature difference of the layer. Comparison of the present results with heat transfer data for liquid mercury is made and found to be good.

Cheung, F.B.; Shiah, S.W. (Pennsylvania State Univ., University Park (United States)); Cho, D.H.; Baker, L. Jr. (Argonne National Lab., IL (United States))

1991-11-01T23:59:59.000Z

60

Natural convection with mixed insulating and conducting boundary conditions: low and high Rayleigh numbers regimes  

E-Print Network (OSTI)

We investigate the stability and dynamics of natural convection in two dimensions, subject to inhomogeneous boundary conditions. In particular, we consider a Rayleigh-B\\`enard (RB) cell, where the horizontal top boundary contains a periodic sequence of alternating thermal insulating and conducting patches, and we study the effects of the heterogeneous pattern on the global heat exchange, both at low and high Rayleigh numbers. At low Rayleigh numbers, we determine numerically the transition from a regime characterized by the presence of small convective cells localized at the inhomogeneous boundary to the onset of bulk convective rolls spanning the entire domain. Such a transition is also controlled analytically in the limit when the boundary pattern length is small compared with the cell vertical size. At higher Rayleigh number, we use numerical simulations based on a lattice Boltzmann method to assess the impact of boundary inhomogeneities on the fully turbulent regime up to $Ra \\sim 10^{10}$.

Ripesi, P; Sbragaglia, M; Wirth, A

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "number natural abundance" 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.


61

nature biotechnology volume 30 number 5 mAY 2012 405 Ryan E. Cobb is in the Department of Chemical  

E-Print Network (OSTI)

nature biotechnology volume 30 number 5 mAY 2012 405 Ryan E. Cobb is in the Department of Chemical genomic sequences of interest are among the most important tools in biotechnology, but many requireAmerica,Inc.Allrightsreserved. #12;406 volume 30 number 5 mAY 2012 nature biotechnology DNA manipulation techniques. For example

Zhao, Huimin

62

Report number ex. Ris-R-1234(EN) 1 Local CHP Plants between the Natural Gas and  

E-Print Network (OSTI)

distributed generation in Denmark. This paper deals with the CHP as intermediary between the natural gas of natural gas from the North Sea of which much is used for electricity and heat generation purposesReport number ex. Risø-R-1234(EN) 1 Local CHP Plants between the Natural Gas and Electricity

63

,"U.S. Natural Gas Number of Underground Storage Acquifers Capacity (Count)"  

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

Acquifers Capacity (Count)" Acquifers Capacity (Count)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Natural Gas Number of Underground Storage Acquifers Capacity (Count)",1,"Annual",2012 ,"Release Date:","12/12/2013" ,"Next Release Date:","1/7/2014" ,"Excel File Name:","na1392_nus_8a.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/na1392_nus_8a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"12/12/2013 5:43:23 PM"

64

Number  

Office of Legacy Management (LM)

' ' , /v-i 2 -i 3 -A, This dow'at consists ~f--~-_,_~~~p.~,::, Number -------of.-&--copies, 1 Series.,-a-,-. ! 1 THE UNIVERSITY OF ROCHESTER 1; r-.' L INTRAMURALCORRESPONDENCE i"ks' 3 2.. September 25, 1947 Memo.tor Dr. A. H, Dovdy . From: Dr. H. E, Stokinger Be: Trip Report - Mayvood Chemical Works A trip vas made Nednesday, August 24th vith Messrs. Robert W ilson and George Sprague to the Mayvood Chemical F!orks, Mayvood, New Jersey one of 2 plants in the U.S.A. engaged in the production of thorium compounds. The purpose of the trip vas to: l 1. Learn the type of chemical processes employed in the thorium industry (thorium nitrate). 2. Survey conditions of eeosure of personnel associated vith these chemical processes. 3. Obtain samples of atmospheric contaminants in the plant, as

65

,"U.S. Natural Gas Number of Underground Storage Depleted Fields Capacity (Count)"  

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

Depleted Fields Capacity (Count)" Depleted Fields Capacity (Count)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Natural Gas Number of Underground Storage Depleted Fields Capacity (Count)",1,"Annual",2012 ,"Release Date:","12/12/2013" ,"Next Release Date:","1/7/2014" ,"Excel File Name:","na1391_nus_8a.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/na1391_nus_8a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"12/12/2013 5:43:06 PM"

66

,"U.S. Natural Gas Number of Underground Storage Salt Caverns Capacity (Count)"  

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

Salt Caverns Capacity (Count)" Salt Caverns Capacity (Count)" ,"Click worksheet name or tab at bottom for data" ,"Worksheet Name","Description","# Of Series","Frequency","Latest Data for" ,"Data 1","U.S. Natural Gas Number of Underground Storage Salt Caverns Capacity (Count)",1,"Annual",2012 ,"Release Date:","12/12/2013" ,"Next Release Date:","1/7/2014" ,"Excel File Name:","na1393_nus_8a.xls" ,"Available from Web Page:","http://tonto.eia.gov/dnav/ng/hist/na1393_nus_8a.htm" ,"Source:","Energy Information Administration" ,"For Help, Contact:","infoctr@eia.doe.gov" ,,"(202) 586-8800",,,"12/12/2013 5:43:34 PM"

67

Nucleosynthesis: Stellar and Solar Abundances and Atomic Data  

E-Print Network (OSTI)

Abundance observations indicate the presence of often surprisingly large amounts of neutron capture (i.e., s- and r-process) elements in old Galactic halo and globular cluster stars. These observations provide insight into the nature of the earliest generations of stars in the Galaxy -- the progenitors of the halo stars -- responsible for neutron-capture synthesis. Comparisons of abundance trends can be used to understand the chemical evolution of the Galaxy and the nature of heavy element nucleosynthesis. In addition age determinations, based upon long-lived radioactive nuclei abundances, can now be obtained. These stellar abundance determinations depend critically upon atomic data. Improved laboratory transition probabilities have been recently obtained for a number of elements. These new gf values have been used to greatly refine the abundances of neutron-capture elemental abundances in the solar photosphere and in very metal-poor Galactic halo stars. The newly determined stellar abundances are surprisingly consistent with a (relative) Solar System r-process pattern, and are also consistent with abundance predictions expected from such neutron-capture nucleosynthesis.

John J. Cowan; James E. Lawler; Christopher Sneden; E. A. Den Hartog; Jason Collier

2006-05-04T23:59:59.000Z

68

50 nature structural biology volume 6 number 1 january 1999 Understanding the nature of interactions between transmembrane  

E-Print Network (OSTI)

potential energy. Our primary objective is to find the global energy minimum on a potential energy surface with the large number of minima on multidimensional potential energy surfaces in order to converge to the global energy minimum. Here we show how our potential smoothing and search method succeeds in finding the global

Ponder, Jay

69

NATURE BIOTECHNOLOGY VOLUME 30 NUMBER 6 JUNE 2012 513 P E R S P E C T I V E  

E-Print Network (OSTI)

NATURE BIOTECHNOLOGY VOLUME 30 NUMBER 6 JUNE 2012 513 P E R S P E C T I V E Metagenomics holds in comparability of data will facilitate the study of biotechnologically relevant processes, such as bioprospecting, to date, played only a small role in biotechnological research, with the majority of novel developments

Fierer, Noah

70

Volume 170, number 5,6 CHEMICAL PHYSICS LETTERS 20 July 1990 Nature of the red emission  

E-Print Network (OSTI)

Volume 170, number 5,6 CHEMICAL PHYSICS LETTERS 20 July 1990 Nature of the red emission Chemistry Stanford University,Stanford, CA 94305. USA Received 16April 1990 Intense red emission peaking solution of H202. Evidence is presented that strong red emission requires the presence of both O,( `A

Zare, Richard N.

71

The redox nature of copper is utilized in a large number of enzymatic processes, including that catalysed by mitochondrial  

E-Print Network (OSTI)

The redox nature of copper is utilized in a large number of enzymatic processes, including that catalysed by mitochondrial cytochrome c oxidase, which makes copper an essential element for all aerobic organisms (Soloman and Lowery, 1993). However, the redox properties of copper can cause rapid generation

Grosell, Martin

72

news and views 994 nature structural biology volume 6 number 11 november 1999  

E-Print Network (OSTI)

.ellington@mail.utexas.edu 1. Pace, N.R. & Marsh, T.L. Orig. Life Evol. Biosph. 16, 97-116 (1985). 2. Torres, R.A. & Bruice, T, R.R. Nature Struct. Biol. 6, 1062­1071 (1999). 4. Robertson, M.P. & Ellington, A.D. Nature Biotechnol. 17, 62-66 (1999). 5. Tang, J. & Breaker, R.R. Chem. Biol. 4, 453-459 (1997). 6. Jiang, F., Kumar

Chan, Hue Sun

73

A newsletter of the Kemp Natural Resources Station Volume 3, Number 2 -Fall 2002  

E-Print Network (OSTI)

th century, and the subsequent political, legal and environmental forces that helped shape forest recovery during the 20th century. According to Dr. Langston, natural resource professionals cannot manage@calshp.cals.wisc.edu The group explores the area where a logging camp once bustled with activity. shaped land settlement

74

On the nature of the extragalactic number counts in the K-band  

E-Print Network (OSTI)

We investigate the causes of the different shape of the $K$-band number counts when compared to other bands, analyzing in detail the presence of a change in the slope around $K\\sim17.5$. We present a near-infrared imaging survey, conducted at the 3.5m telescope of the Calar Alto Spanish-German Astronomical Center (CAHA), covering two separated fields centered on the HFDN and the Groth field, with a total combined area of $\\sim0.27$deg$^{2}$ to a depth of $K\\sim19$ ($3\\sigma$,Vega). We derive luminosity functions from the observed $K$-band in the redshift range [0.25-1.25], that are combined with data from the references in multiple bands and redshifts, to build up the $K$-band number count distribution. We find that the overall shape of the number counts can be grouped into three regimes: the classic Euclidean slope regime ($d\\log N/dm\\sim0.6$) at bright magnitudes; a transition regime at intermediate magnitudes, dominated by $M^{\\ast}$ galaxies at the redshift that maximizes the product $\\phi^{\\ast}\\frac{dV_{c}}{d\\Omega}$; and an $\\alpha$ dominated regime at faint magnitudes, where the slope asymptotically approaches -0.4($\\alpha$+1) controlled by post-$M^{\\ast}$ galaxies. The slope of the $K$-band number counts presents an averaged decrement of $\\sim50%$ in the range $15.5

G. Barro; J. Gallego; P. G. Pérez-González; C. Eliche-Moral; M. Balcells; V. Villar; N. Cardiel; D. Cristobal-Hornillos; A. Gil de Paz; R. Gúzman; R. Pelló; M. Prieto; J. Zamorano

2008-11-19T23:59:59.000Z

75

co r r e s p on d e n c e nature medicine volume 17 | number 1 | january 2011 33  

E-Print Network (OSTI)

co r r e s p on d e n c e nature medicine volume 17 | number 1 | january 2011 33 Triclosan type I (FAS-I) protein. The finding that the microbicide triclosan, a chlorinated hydroxyl- diphenyl of its effect on Plasmodium. An article published in 2001 in Nature Medicine4 reported that triclosan

Schnaufer, Achim

76

Stellar abundances of beryllium and CUBES  

E-Print Network (OSTI)

Stellar abundances of beryllium are useful in different areas of astrophysics, including studies of the Galactic chemical evolution, of stellar evolution, and of the formation of globular clusters. Determining Be abundances in stars is, however, a challenging endeavor. The two Be II resonance lines useful for abundance analyses are in the near UV, a region strongly affected by atmospheric extinction. CUBES is a new spectrograph planned for the VLT that will be more sensitive than current instruments in the near UV spectral region. It will allow the observation of fainter stars, expanding the number of targets where Be abundances can be determined. Here, a brief review of stellar abundances of Be is presented together with a discussion of science cases for CUBES. In particular, preliminary simulations of CUBES spectra are presented, highlighting its possible impact in investigations of Be abundances of extremely metal-poor stars and of stars in globular clusters.

Smiljanic, R

2014-01-01T23:59:59.000Z

77

The Solar Argon Abundance  

E-Print Network (OSTI)

The solar argon abundance cannot be directly derived by spectroscopic observations of the solar photosphere. The solar Ar abundance is evaluated from solar wind measurements, nucleosynthetic arguments, observations of B stars, HII regions, planetary nebulae, and noble gas abundances measured in Jupiter's atmosphere. These data lead to a recommended argon abundance of N(Ar) = 91,200(+/-)23,700 (on a scale where Si = 10^6 atoms). The recommended abundance for the solar photosphere (on a scale where log N(H) = 12) is A(Ar)photo = 6.50(+/-)0.10, and taking element settling into account, the solar system (protosolar) abundance is A(Ar)solsys = 6.57(+/-)0.10.

Katharina Lodders

2007-10-24T23:59:59.000Z

78

Natural  

Gasoline and Diesel Fuel Update (EIA)

Summary of U.S. Natural Gas Imports and Exports, 1992-1996 Table 1992 1993 1994 1995 1996 Imports Volume (million cubic feet) Pipeline Canada............................. 2,094,387 2,266,751 2,566,049 2,816,408 2,883,277 Mexico .............................. 0 1,678 7,013 6,722 13,862 Total Pipeline Imports....... 2,094,387 2,268,429 2,573,061 2,823,130 2,897,138 LNG Algeria .............................. 43,116 81,685 50,778 17,918 35,325 United Arab Emirates ....... 0 0 0 0 4,949 Total LNG Imports............. 43,116 81,685 50,778 17,918 40,274 Total Imports......................... 2,137,504 2,350,115 2,623,839 2,841,048 2,937,413 Average Price (dollars per thousand cubic feet) Pipeline Canada............................. 1.84 2.02 1.86 1.48 1.96 Mexico .............................. - 1.94 1.99 1.53 2.25 Total Pipeline Imports.......

79

Earth-Abundant Materials  

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

DOE funds research into Earth-abundant materials for thin-film solar applications in response to the issue of materials scarcity surrounding other photovoltaic (PV) technologies. Below are a list...

80

OXYGEN ABUNDANCES IN CEPHEIDS  

SciTech Connect

Oxygen abundances in later-type stars, and intermediate-mass stars in particular, are usually determined from the [O I] line at 630.0 nm, and to a lesser extent, from the O I triplet at 615.7 nm. The near-IR triplets at 777.4 nm and 844.6 nm are strong in these stars and generally do not suffer from severe blending with other species. However, these latter two triplets suffer from strong non-local thermodynamic equilibrium (NLTE) effects and thus see limited use in abundance analyses. In this paper, we derive oxygen abundances in a large sample of Cepheids using the near-IR triplets from an NLTE analysis, and compare those abundances to values derived from a local thermodynamic equilibrium (LTE) analysis of the [O I] 630.0 nm line and the O I 615.7 nm triplet as well as LTE abundances for the 777.4 nm triplet. All of these lines suffer from line strength problems making them sensitive to either measurement complications (weak lines) or to line saturation difficulties (strong lines). Upon this realization, the LTE results for the [O I] lines and the O I 615.7 nm triplet are in adequate agreement with the abundance from the NLTE analysis of the near-IR triplets.

Luck, R. E.; Andrievsky, S. M. [Department of Astronomy, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH 44106-7215 (United States); Korotin, S. N.; Kovtyukh, V. V., E-mail: luck@fafnir.astr.cwru.edu, E-mail: serkor@skyline.od.ua, E-mail: val@deneb1.odessa.ua, E-mail: scan@deneb1.odessa.ua [Department of Astronomy and Astronomical Observatory, Odessa National University, Isaac Newton Institute of Chile, Odessa Branch, Shevchenko Park, 65014 Odessa (Ukraine)

2013-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "number natural abundance" 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

Coronal versus photospheric abundances of stars with different activity levels  

E-Print Network (OSTI)

We report a detailed analysis of the coronal abundance of 4 stars with varying levels of activity and with accurately known photospheric abundances. The coronal abundance is determined here using a line flux analysis and a full determination of the differential emission measure. Photospheric abundance values are taken from literature works. Previous coronal abundance determinations have generally been compared to solar photospheric abundances; from this a number of general properties have been inferred, such as the presence of a coronal metal depletion with an inverse First Ionization Potential correlated with activity level. Here we show that, when coronal abundances are compared with real photospheric values for the individual stars, the resulting pattern can be very different. Also, we present evidence that, in some cases, the coronal metal abundance may not be uniform in the corona; in particular it can vary with the temperature of the emitting plasma.

J. Sanz-Forcada; F. Favata; G. Micela

2003-11-16T23:59:59.000Z

82

Solar abundance problem  

E-Print Network (OSTI)

The chemical composition of the Sun is among the most important quantities in astrophysics. Solar abundances are needed for modelling stellar atmospheres, stellar structure and evolution, population synthesis, and galaxies as a whole. The solar abundance problem refers to the conflict of observed data from helioseismology and the predictions made by stellar interior models for the Sun, if these models use the newest solar chemical composition obtained with 3D and NLTE models of radiative transfer. Here we take a close look at the problem from observational and theoretical perspective. We also provide a list of possible solutions, which have yet to be tested.

Bergemann, Maria

2014-01-01T23:59:59.000Z

83

Associative memory storing an extensive number of patterns based on a network of oscillators with distributed natural frequencies in the presence of external white noise  

Science Journals Connector (OSTI)

We study associative memory based on temporal coding in which successful retrieval is realized as an entrainment in a network of simple phase oscillators with distributed natural frequencies under the influence of white noise. The memory patterns are assumed to be given by uniformly distributed random numbers on [0, 2?) so that the patterns encode the phase differences of the oscillators. To derive the macroscopic order parameter equations for the network with an extensive number of stored patterns, we introduce an effective transfer function by assuming a fixed-point equation of the form of the Thouless-Anderson-Palmer equation, which describes the time-averaged output as a function of the effective time-averaged local field. Properties of the networks associated with synchronization phenomena for a discrete symmetric natural frequency distribution with three frequency components are studied based on the order parameter equations, and are shown to be in good agreement with the results of numerical simulations. Two types of retrieval states are found to occur with respect to the degree of synchronization, when the size of the width of the natural frequency distribution is changed.

Masahiko Yoshioka and Masatoshi Shiino

2000-05-01T23:59:59.000Z

84

Measuring solar abundances  

SciTech Connect

This is the rapporteur paper of Working Group 2 on Measuring Solar Abundances. The working group presented and discussed the different observations and methods for obtaining the elemental and isotopic composition of the Sun, and critically reviewed their results and the accuracies thereof. Furthermore, a few important yet unanswered questions were identified, and the potential of future missions to provide answers was assessed.

Reisenfeld, D. B. (Daniel B.); Von Steiger, R. (Rudolf); Vial, J.-C. (Jean-Claude); Bochsler, P.; Chaussidon, M.; Cohen, C. M. S.; Fleck, B.; Heber, V. S.; Wiens, R. C. (Roger C.)

2001-01-01T23:59:59.000Z

85

Nebular Abundance Errors  

E-Print Network (OSTI)

The errors inherent to the use of the standard "ionization correction factor" ("i_CF") method of calculating nebular conditions and relative abundances of H, He, N, O, Ne, S, and Ar in emission line nebulae have been investigated under conditions typical for planetary nebulae. The photoionization code CLOUDY was used to construct a series of model nebulae with properties spanning the range typical of PNe. Its radial "profiles" of bright, frequently observed optical emission lines were then summed over a variety of "apertures" to generate sets of emission line measurements. These resulting line ratios were processed using the i_CF method to "derive" nebular conditions and abundances. We find that for lines which are summed over the entire nebula the i_CF-derived abundances differ from the input abundances by less than 5% for He and O up to 25% or more for Ne, S, and Ar. For resolved observations, however, the discrepancies are often much larger and are systematically variable with radius. This effect is especially pronounced in low-ionization zones where nitrogen and oxygen are neutral or once-ionized such as in FLIERs, ansae and ionization fronts. We argue that the reports of stellar-enriched N in the FLIERs of several PNe are probably specious.

J. Alexander; B. Balick

1997-04-30T23:59:59.000Z

86

Constraining solar abundances using helioseismology  

E-Print Network (OSTI)

Recent analyses of solar photospheric abundances suggest that the oxygen abundance in the solar atmosphere needs to be revised downwards. In this study we investigate the consequence of this revision on helioseismic analyses of the depth of the solar convection zone and the helium abundance in the solar envelope and find no significant effect. We also find that the revised abundances along with the current OPAL opacity tables are not consistent with seismic data. A significant upward revision of the opacity tables is required to make solar models with lower oxygen abundance consistent with seismic observations.

Sarbani Basu; H. M. Antia

2004-03-19T23:59:59.000Z

87

Effects of oxyanions, natural organic matter, and bacterial cell numbers on the bioreduction of lepidocrocite ({gamma}-FeOOH) and the formation of secondary mineralization products.  

SciTech Connect

Microbial reduction of Fe(III) oxides results in the production of Fe(II) and may lead to the subsequent formation of Fe(II)-bearing secondary mineralization products including magnetite, siderite, vivianite, chukanovite (ferrous hydroxy carbonate (FHC)), and green rust; however, the factors controlling the formation of specific Fe(II) phases are often not well-defined. This study examined effects of (i) a range of inorganic oxyanions (arsenate, borate, molybdate, phosphate, silicate, and tungstate), (ii) natural organic matter (citrate, oxalate, microbial extracellular polymeric substances [EPS], and humic substances), and (iii) the type and number of dissimilatory iron-reducing bacteria on the bioreduction of lepidocrocite and formation of Fe(II)-bearing secondary mineralization products. The bioreduction kinetics clustered into two distinct Fe(II) production profiles. 'Fast' Fe(II) production kinetics [19-24 mM Fe(II) d-1] were accompanied by formation of magnetite and FHC in the unamended control and in systems amended with borate, oxalate, gellan EPS, or Pony Lake fulvic acid or having 'low' cell numbers. Systems amended with arsenate, citrate, molybdate, phosphate, silicate, tungstate, EPS from Shewanella putrefaciens CN32, or humic substances derived from terrestrial plant material or with 'high' cell numbers exhibited comparatively slow Fe(II) production kinetics [1.8-4.0 mM Fe(II) d-1] and the formation of green rust. The results are consistent with a conceptual model whereby competitive sorption of more strongly bound anions blocks access of bacterial cells and reduced electron-shuttling compounds to sites on the iron oxide surface, thereby limiting the rate of bioreduction.

O'Loughlin, E. J.; Gorski, C. A.; Scherer, M. M.; Boyanov, M. I.; Kemner, K. M.; Biosciences Division; Univ. of Iowa

2010-06-15T23:59:59.000Z

88

nature biotechnology volume 27 number 12 december 2009 1 half-life for indications when an extended residence time in the cir-  

E-Print Network (OSTI)

and can complicate tight control over plasma Focus on synthetic biology This issue of Nature Biotechnology

Cai, Long

89

Measuring Solar Abundances with Seismology  

E-Print Network (OSTI)

The revision of the photospheric abundances proferred by Asplund et al has rendered opacity theory inconsistent with the seismologically determined opacity through the Sun. This highlights the need for a direct seismological measurement of solar abundances. Here we describe the technique used to measure abundances with seismology, examine our ability to detect differences between solar models using this technique, and discuss its application in the Sun.

Katie Mussack; Douglas Gough

2008-10-15T23:59:59.000Z

90

The Abundance of Interstellar Nitrogen  

E-Print Network (OSTI)

Using the HST Goddard High Resolution Spectrograph (GHRS), we have obtained high S/N echelle observations of the weak interstellar N I 1160, 1161 A absorption doublet toward the stars Gamma Cas, Lambda Ori, Iota Ori, Kappa Ori, Delta Sco, and Kappa Sco. In combination with a previous GHRS measurement of N I toward Zeta Oph, these new observations yield a mean interstellar gas phase nitrogen abundance (per 10$^6$ H atoms) of 10$^6$ N/H = 75 +/- 4. There are no statistically significant variations in the measured N abundances from sightline to sightline and no evidence of density-dependent depletion from the gas-phase. Since N is not expected to be depleted much into dust grains in these diffuse sightlines, its gas-phase abundance should reflect the total interstellar abundance. Consequently, the GHRS observations imply that the abundance of interstellar nitrogen (gas plus grains) in the local Milky Way is about 80% of the solar system value of 10$^6$ N/H = 93 +/- 16. Although this interstellar abundance deficit is somewhat less than that recently found for oxygen and krypton with GHRS, the solar N abundance and the N I oscillator strengths are too uncertain to definitively rule out either a solar ISM N abundance or a 2/3 solar ISM N abundance similar to that of O and Kr.

David M. Meyer; Jason A. Cardelli; Ulysses J. Sofia

1997-10-15T23:59:59.000Z

91

Determining solar abundances using helioseismology  

E-Print Network (OSTI)

The recent downward revision of solar photospheric abundances of Oxygen and other heavy elements has resulted in serious discrepancies between solar models and solar structure as determined through helioseismology. In this work we investigate the possibility of determining the solar heavy-element abundance without reference to spectroscopy by using helioseismic data. Using the dimensionless sound-speed derivative in the solar convection zone, we find that the heavy element abundance, Z, of 0.0172 +/- 0.002, which is closer to the older, higher value of the abundances.

H. M. Antia; Sarbani Basu

2006-02-28T23:59:59.000Z

92

Literature survey of isotopic abundance data for 1987-1989  

SciTech Connect

I have compiled all of the data on isotopic abundance measurements and their variation in nature for the time period since the last General Assembly. Most of the data deals with the variations in the abundances as given by per mil deviations from some standard. As such, they are not of major interest to the Atomic Weights Commission. However, there were some measurements which are of general interest in this list.

Holden, N.E. (Brookhaven National Lab., Upton, NY (USA))

1989-08-09T23:59:59.000Z

93

E-Print Network 3.0 - abundance isotopic Sample Search Results  

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

Search Sample search results for: abundance isotopic Page: << < 1 2 3 4 5 > >> 1 ISOTOPE FRACTIONATION Isotopes are atoms whose nuclei contain the same number of protons but...

94

Adding more value to natural gas  

Science Journals Connector (OSTI)

Adding more value to natural gas ... Calif, has developed a catalyst that could convert natural gas. ... Natural gas is abundant in many countries but not used widely as a feedstock because transporting it is very expensive. ...

MAUREEN ROUBI

1998-04-27T23:59:59.000Z

95

Uncertainty in Particle Number Modal Analysis during Transient Operation of Compressed Natural Gas, Diesel, and Trap-Equipped Diesel Transit Buses  

Science Journals Connector (OSTI)

A number of recent studies have examined the mass- and number-weighted particulate emissions from diesel engines and vehicles, chiefly using laboratory tests under steady-state vehicle or engine operation. ... However, there remains little fundamental data on the relationships between vehicle operating mode (cruise, idle, acceleration, decelera tion) and ultrafine particle emissions, both for diesel and especially for diesel alternatives. ... The number of ELPI data points measured for individual test cycles ranged from 120 to 1000, depending on the recorded ELPI time resolution and overall length of the driving cycle (?10?35 min). ...

Britt A. Holmén; Yingge Qu

2004-03-10T23:59:59.000Z

96

Kinetics simulation for natural gas conversion to unsaturated C? hydrocarbons.  

E-Print Network (OSTI)

??Natural gas resource is abundant and can be found throughout the world. But most natural gas reserves are at remote sites and considered stranded because… (more)

Yang, Li

2012-01-01T23:59:59.000Z

97

Technology Key to Harnessing Natural Gas Potential | Department...  

Energy Savers (EERE)

- for a total of 30 million - that will pursue innovations in natural gas storage tanks and fueling stations, helping to harness our abundant supplies of domestic natural gas...

98

Non-Lte Effects on be and B Abundance Determinations in Cool Stars  

E-Print Network (OSTI)

We discuss the nature of non-LTE effects affecting abundance analysis of cool stars. The departures from LTE of importance for the B I lines in solar-type stars are described and some new results are presented. Boron abundances derived under the LTE assumption have significant systematic errors, especially for metal-poor stars. For beryllium, current results suggest that departures from LTE will not affect abundance analysis significantly.

Dan Kiselman; Mats Carlsson

1994-09-26T23:59:59.000Z

99

LITERATURE SURVEY ON ISOTOPIC ABUNDANCE RATIO MEASUREMENTS - 2001-2005  

SciTech Connect

Along with my usual weekly review of the published literature for new nuclear data, I also search for new candidates for best measurements of isotopic abundances from a single source. Most of the published articles, that I previously had found in the Research Library at the Brookhaven Lab, have already been sent to the members of the Atomic Weights Commission, by either Michael Berglund or Thomas Walczyk. In the last few days, I checked the published literature for any other articles in the areas of natural variations in isotopic abundance ratios, measurements of isotopic abundance ratios on samples of extra-terrestrial material and isotopic abundance ratio measurements performed using ICPMS instruments. Hopefully this information will be of interest to members of the Commission, the sub-committee on isotopic abundance measurements (SIAM), members of the former sub-committee on natural isotopic fractionation (SNIF), the sub-committee on extra-terrestrial isotope ratios (SETIR), the RTCE Task Group and the Guidelines Task Group, who are dealing with ICPMS and TIMS comparisons. In the following report, I categorize the publications in one of four areas. Measurements performed using either positive or negative ions with Thermal Ionization Mass Spectrometer, TIMS, instruments; measurements performed on Inductively Coupled Plasma Mass Spectrometer, ICPMS, instruments; measurements of natural variations of the isotopic abundance ratios; and finally measurements on extra-terrestrial samples with instrumentation of either type. There is overlap in these areas. I selected out variations and ET results first and then categorized the rest of the papers by TIMS and ICPMS.

HOLDEN, N.E.

2005-08-13T23:59:59.000Z

100

Incoherent scattering cross sections for some ions of solar abundance  

SciTech Connect

Incoherent scattering cross sections are calculated in a relativistic formalism for a number of ions abundant in the solar atmosphere. It is argued that such cross sections are necessary for properly calculating Compton scattering and radiation transport in this or similar environments.

Kahane, Sylvian [Physics Department, Nuclear Research Center Negev, PO Box 9001, 84190 Beer Sheva (Israel)]. E-mail: skahane@bgu.ac.il

2007-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "number natural abundance" 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.


101

Abundant Power | Open Energy Information  

Open Energy Info (EERE)

Abundant Power Abundant Power Place Charlotte, North Carolina Zip 28204 Sector Renewable Energy Product North Carolina-based firm focused on capital formation, financing and project development for renewable energy projects. Coordinates 35.2225°, -80.837539° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.2225,"lon":-80.837539,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

102

Abundant Biofuels | Open Energy Information  

Open Energy Info (EERE)

Biofuels Biofuels Jump to: navigation, search Name Abundant Biofuels Place Monterey, California Sector Biofuels Product Abundant Biofuels plans to develop biodiesel feedstock plantations, refineries, and distribution channels in one or more Caribbean, Central American, or South American countries. Coordinates 38.413256°, -79.582974° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":38.413256,"lon":-79.582974,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

103

Quantum statistical calculation of cluster abundances in hot dense matter  

E-Print Network (OSTI)

The cluster abundances are calculated from a quantum statistical approach taking into account in-medium corrections. For arbitrary cluster size the self-energy and Pauli blocking shifts are considered. Exploratory calculations are performed for symmetric matter at temperature $T=5$ MeV and baryon density $\\varrho=0.0156$ fm$^{-3}$ to be compared with the solar element distribution. It is shown that the abundances of weakly bound nuclei with mass number $4

Gerd Ropke

2014-07-01T23:59:59.000Z

104

Constraining dark energy from the abundance of weak gravitational lenses  

E-Print Network (OSTI)

We examine the prospect of using the observed abundance of weak gravitational lenses to constrain the equation-of-state parameter w of the dark energy. Here we solve the spherical-collapse model with dark energy, clarifying some ambiguities found in the literature, and provide fitting formulas for the overdensity at virialization and the linear-theory overdensity at collapse. We then compute the variation in the predicted weak-lens abundance with w. We find that the predicted redshift distribution and number count of weak lenses are highly degenerate in w and \\Omega_0. If we fix \\Omega_0 the number count for w=-2/3 is a factor of 2 smaller than for the \\LambdaCDM model. However, if we allow \\Omega_0 to vary with w such that the amplitude of the matter power spectrum as measured by COBE matches that obtained from the X-ray cluster abundance, the decrease in the predicted lens abundance is less than 25% for -1 40 degree^2 in order for the number count to differentiate a \\LambdaCDM cosmology from a w=-0.9 model...

Weinberg, N N; Weinberg, Nevin N.; Kamionkowski, Marc

2003-01-01T23:59:59.000Z

105

H II region abundances in Seyfert galaxies  

SciTech Connect

The theoretical H II region abundance sequence calibration reported by Dopita and Evans in 1986 has been applied to optical spectrophotometry of 23 H II regions located in the inner disk regions of two Seyfert 1 and two Seyfert 2 galaxies, including the prototype Seyfert 2, NGC 1068, in order to determine oxygen, nitrogen, and sulfur abundances. The mean oxygen abundance derived for each galaxy ranges between solar abundance and twice solar abundance. There is no evidence for abnormal N/O or S/O abundance ratios in any of the H II regions observed. The observations suggest that the abundances derived for the H II regions may be adopted as nuclear abundances and employed to constrain theoretical models of the Seyfert nucleus. The observations then place limits on the influence which the active nucleus can have on chemical enrichment of the local interstellar medium. 47 references.

Evans, I.N.; Dopita, M.A.

1987-08-01T23:59:59.000Z

106

Abundance measurements in stellar environments  

SciTech Connect

Most of what we know about stars, and systems of stars, is derived from the analysis of their electromagnetic radiation. This lesson is an attempt to describe to Physicists, without any Astrophysical background, the framework to understand the present status of abundance determination in stellar environments and its limit. These notes are dedicated to the recently passed, November 21, 2013, Prof. Dimitri Mihalas who spent his life confuting the 19th century positivist philosopher Auguste Comte who stated that we shall not at all be able to determine the chemical composition of stars.

Leone, F. [Università di Catania, Dipartimento di Fisica e Astronomia, Sezione Astrofisica, Via S. Sofia 78, 95123 Catania (Italy)

2014-05-09T23:59:59.000Z

107

Abundance Ratios in Early-Type Galaxies  

E-Print Network (OSTI)

Although evidence is accumulating that abundance ratios in galaxies are often non-solar, they are far from understood. I resume the current evidence for non-solar abundance ratios, supplementing the recent review by Worthey (1998) with some new results. It appears that the Mg/Fe abundance ratio only depends on the mass of the galaxy, not on the formation time-scale. For massive galaxies [Mg/Fe] > 0, while small galaxies show solar abundance ratios. Information about abundances of other element is scarce, but new evidence is given that [Ca/Fe] is solar, or slightly lower than solar, contrary to what is expected for an alpha-element.

Reynier Peletier

1999-04-21T23:59:59.000Z

108

North Carolina Natural Gas Number of Residential Consumers (Number...  

Annual Energy Outlook 2012 (EIA)

777,805 815,908 2000's 858,004 891,227 905,816 953,732 948,283 992,906 1,022,430 1,063,871 1,095,362 1,102,001 2010's 1,115,532 1,128,963 1,142,947 1,161,398 - No Data...

109

Maryland Natural Gas Number of Residential Consumers (Number...  

Gasoline and Diesel Fuel Update (EIA)

1980's 755,294 760,754 767,219 1990's 774,707 782,373 894,677 807,204 824,137 841,772 871,012 890,195 901,455 939,029 2000's 941,384 959,772 978,319 987,863 1,009,455 1,024,955...

110

Idaho Natural Gas Number of Residential Consumers (Number of...  

Annual Energy Outlook 2012 (EIA)

261,219 274,481 288,380 301,357 316,915 323,114 336,191 342,277 2010's 346,602 350,871 353,963 359,889 - No Data Reported; -- Not Applicable; NA Not Available; W ...

111

Influences of vegetation characteristics and invertebrate abundance of Rio Grande wild turkey populations, Edwards Plateau, Texas  

E-Print Network (OSTI)

Since 1970, Rio Grande wild turkey (Meleagris gallapavo intermedia) numbers in the southern region of the Edwards Plateau of Texas have been declining. Nest-site characteristics and invertebrate abundance were hypothesized as limiting wild turkey...

Randel, Charles Jack

2005-02-17T23:59:59.000Z

112

NATURE STUDY  

Science Journals Connector (OSTI)

...last two numbers of SCIENCE have appeared articles by Drs. Wheeler and Chapman on the abuses of nature writing as exemplified...imprint of Rand, IeNally and Co., 1903, and its author is Katherine E. Dopp, of the Extension Division of the Chicago University...

E. C. CASE

1904-04-01T23:59:59.000Z

113

Abundance and evolution of gas around Beta Pictoris  

E-Print Network (OSTI)

gas produc- tion of solar abundance are preferred to producewith respect to the solar abundance. 5. ACKNOWLEDGMENTS Xietop panel) and solar abundance (bottom). Green squares are

Xie, Jiwei; Brandeker, Alexis; Wu, Yanqin

2011-01-01T23:59:59.000Z

114

The discrepancy between solar abundances and helioseismology  

E-Print Network (OSTI)

There have been recent downward revisions of the solar photospheric abundances of Oxygen and other heavy elements. These revised abundances along with OPAL opacities are not consistent with seismic constraints. In this work we show that the recently released OP opacity tables cannot resolve this discrepancy either. While the revision in opacities does not seem to resolve this conflict, an upward revision of Neon abundance in solar photosphere offers a possible solution to this problem.

H. M. Antia; Sarbani Basu

2005-01-07T23:59:59.000Z

115

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

The Boston forum is open to the public. Additional information is available at http:www.energy.govnews3197.htm. Natural Gas Rig Count: The number of rigs drilling for natural...

116

Earth-abundant semiconductors for photovoltaic applications ...  

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

Earth-abundant semiconductors for photovoltaic applications Thin film photovoltaics (solar cells) has the potential to revolutionize our energy landscape by producing clean,...

117

Helioseismic limit on heavy element abundance  

E-Print Network (OSTI)

Primary inversions of accurately measured solar oscillation frequencies coupled with the equations of thermal equilibrium and other input physics, enable us to infer the temperature and hydrogen abundance profiles inside the Sun. These profiles also help in setting constraints on the input physics as well as on heavy element abundance in the solar core. Using different treatments of plasma screening for nuclear reaction rates, limits on the cross-section of proton-proton nuclear reaction as a function of heavy element abundance in the solar core are obtained and an upper limit on heavy element abundance in the solar core is also derived from these results.

H. M. Antia; S. M. Chitre

2002-09-08T23:59:59.000Z

118

Number of Natural Gas Residential Transported Consumers  

Gasoline and Diesel Fuel Update (EIA)

4,037,233 5,274,697 5,531,680 6,604,403 1997-2012 4,037,233 5,274,697 5,531,680 6,604,403 1997-2012 Alabama 0 0 0 0 1997-2012 Arizona 0 0 6 6 1997-2012 California 29,240 72,850 79,605 134,210 1997-2012 Colorado 3 5 5 5 1997-2012 Connecticut 492 805 905 897 1997-2012 District of Columbia 13,933 14,103 14,636 16,264 1997-2012 Florida 13,789 13,783 14,635 14,861 1997-2012 Georgia 1,397,247 1,419,297 1,418,491 1,420,364 1997-2012 Illinois 192,493 274,086 261,895 273,010 1997-2012 Indiana 49,397 89,675 93,106 88,977 1997-2012 Kansas 0 0 0 21 2004-2012 Kentucky 26,823 29,189 28,982 27,606 1997-2012 Louisiana 0 0 0 0 1997-2012 Maine 1 0 0 2010-2012 Maryland 117,206 147,696 184,324 211,351 1997-2012 Massachusetts 523 1,750 1,867 2,013 1997-2012 Michigan 127,378 199,918 207,388 464,001 1997-2012

119

Number of Natural Gas Residential Consumers  

Gasoline and Diesel Fuel Update (EIA)

64,964,769 65,073,996 65,329,582 65,542,345 65,940,522 66,624,457 64,964,769 65,073,996 65,329,582 65,542,345 65,940,522 66,624,457 1987-2012 Alabama 796,476 792,236 785,005 778,985 772,892 767,412 1986-2012 Alaska 115,500 119,039 120,124 121,166 121,736 122,983 1986-2012 Arizona 1,119,266 1,128,264 1,130,047 1,138,448 1,146,286 1,157,688 1986-2012 Arkansas 557,966 556,746 557,355 549,970 551,795 549,959 1986-2012 California 10,439,220 10,515,162 10,510,950 10,542,584 10,625,190 10,681,916 1986-2012 Colorado 1,583,945 1,606,602 1,622,434 1,634,587 1,645,716 1,659,808 1986-2012 Connecticut 482,902 487,320 489,349 490,185 494,970 504,138 1986-2012 Delaware 145,010 147,541 149,006 150,458 152,005 153,307 1986-2012 District of Columbia 142,384 142,819 143,436 144,151 145,524 145,938 1986-2012

120

Number of Natural Gas Commercial Consumers  

Gasoline and Diesel Fuel Update (EIA)

5,308,785 5,444,335 5,322,332 5,301,576 5,319,817 5,355,613 5,308,785 5,444,335 5,322,332 5,301,576 5,319,817 5,355,613 1987-2012 Alabama 65,879 65,313 67,674 68,163 67,696 67,234 1986-2012 Alaska 13,408 12,764 13,215 12,998 13,027 13,134 1986-2012 Arizona 57,169 57,586 57,191 56,676 56,547 56,532 1986-2012 Arkansas 69,495 69,144 69,043 67,987 67,815 68,765 1986-2012 California 446,267 447,160 441,806 439,572 440,990 442,708 1986-2012 Colorado 141,420 144,719 145,624 145,460 145,837 145,960 1986-2012 Connecticut 52,389 53,903 54,510 54,842 55,028 55,407 1986-2012 Delaware 12,576 12,703 12,839 12,861 12,931 12,997 1986-2012 District of Columbia 9,915 10,024 10,288 9,879 10,050 9,771 1986-2012 Florida 57,320 58,125 59,549 60,854 61,582 63,450 1986-2012 Georgia

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121

Number of Natural Gas Residential Sales Consumers  

Gasoline and Diesel Fuel Update (EIA)

60,129,047 60,267,648 60,408,842 60,020,054 1997-2012 60,129,047 60,267,648 60,408,842 60,020,054 1997-2012 Alabama 808,801 778,985 772,892 767,412 1997-2012 Alaska 112,269 121,166 121,736 122,983 1997-2012 Arizona 1,088,574 1,138,448 1,146,280 1,157,682 1997-2012 Arkansas 555,905 549,970 551,795 549,959 1997-2012 California 10,299,984 10,469,734 10,545,585 10,547,706 1997-2012 Colorado 1,558,908 1,634,582 1,645,711 1,659,803 1997-2012 Connecticut 478,357 489,380 494,065 503,241 1997-2012 Delaware 141,276 150,458 152,005 153,307 1997-2012 District of Columbia 128,020 130,048 130,888 129,674 1997-2012 Florida 659,333 661,768 664,564 672,160 1997-2012 Georgia 328,992 321,290 321,515 319,179 1997-2012 Hawaii 25,982 25,389 25,305 25,184 1998-2012 Idaho 316,915 346,602 350,871 353,963 1997-2012

122

Number of Natural Gas Commercial Transported Consumer  

Gasoline and Diesel Fuel Update (EIA)

39,557 716,692 763,597 837,365 1998-2012 39,557 716,692 763,597 837,365 1998-2012 Alabama 115 146 135 135 1998-2012 Alaska 1,526 325 303 61 1998-2012 Arizona 136 166 198 280 1998-2012 Arkansas 157 311 361 614 1998-2012 California 15,673 40,282 50,443 54,948 1998-2012 Colorado 180 224 280 397 1998-2012 Connecticut 3,926 4,710 4,858 5,095 1998-2012 Delaware 57 155 275 353 1999-2012 District of Columbia 3,406 3,450 3,556 3,293 1998-2012 Florida 14,069 19,104 20,514 22,375 1998-2012 Georgia 94,391 92,441 91,292 89,488 1998-2012 Idaho 36 38 40 42 1998-2012 Illinois 58,515 51,198 51,631 53,043 1998-2012 Indiana 12,627 17,499 18,066 18,537 1998-2012 Iowa 1,382 1,400 1,466 1,533 1998-2012 Kansas 5,440 6,136 6,315 6,443 1998-2012 Kentucky 3,729 4,166 4,585 4,485 1998-2012

123

California Number of Natural Gas Consumers  

Gasoline and Diesel Fuel Update (EIA)

0,515,162 10,510,950 10,542,584 10,625,190 10,681,916 10,754,908 1986-2013 Sales 10,469,734 10,545,585 10,547,706 10,471,814 1997-2013 Transported 72,850 79,605 134,210 283,094...

124

RELATIVE CHIRAL ABUNDANCES OF CARBON NANOTUBES DETERMINED BYRELATIVE CHIRAL ABUNDANCES OF CARBON NANOTUBES DETERMINED BYRELATIVE CHIRAL ABUNDANCES OF CARBON NANOTUBES DETERMINED BYRELATIVE CHIRAL ABUNDANCES OF CARBON NANOTUBES DETERMINED BY RESONANT RAMAN  

E-Print Network (OSTI)

RELATIVE CHIRAL ABUNDANCES OF CARBON NANOTUBES DETERMINED BYRELATIVE CHIRAL ABUNDANCES OF CARBON NANOTUBES DETERMINED BYRELATIVE CHIRAL ABUNDANCES OF CARBON NANOTUBES DETERMINED BYRELATIVE CHIRAL ABUNDANCES OF CARBON NANOTUBES DETERMINED BY RESONANT RAMAN SPECTROSCOPY USING A TUNABLE DYE LASERRESONANT

Mellor-Crummey, John

125

UNIT NUMBER:  

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

193 UNIT NUMBER: 197 UNIT NAME: CONCRETE RUBBLE PILE (30) REGULATORY STATUS: AOC LOCATION: Outside plant security fence, north of the plant on Big Bayou Creek on private property....

126

UNIT NUMBER  

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

7 UNIT NUMBER UNIT NAME Rubble oile 41 REGULATORY STATUS: AOC LOCATION: Butler Lake Dam, West end of Butler Lake top 20 ft wide, 10 ft APPROXIMATE DIMENSIONS: 200 ft long, base 30...

127

On the solar abundance of indium  

Science Journals Connector (OSTI)

......we suggest that the solar indium abundance is close...line at high excitation energy from a species with low-first ionization energy. 1 http://nuclear-astrophysics...our attention to the solar indium abundance, and...Fig. 8. This research project has been supported by......

N. Vitas; I. Vince; M. Lugaro; O. Andriyenko; M. Gosic; R. J. Rutten

2008-02-11T23:59:59.000Z

128

On the solar nickel and oxygen abundances  

E-Print Network (OSTI)

Determinations of the solar oxygen content relying on the neutral forbidden transition at 630 nm depend upon the nickel abundance, due to a Ni I blend. Here we rederive the solar nickel abundance, using the same ab initio 3D hydrodynamic model of the solar photosphere employed in the recent revision of the abundances of C, N, O and other elements. Using 17 weak, unblended lines of Ni I together with the most accurate atomic and observational data available we find log epsilon_Ni = 6.17 +/- 0.02 (statistical) +/- 0.05 (systematic), a downwards shift of 0.06 to 0.08 dex relative to previous 1D-based abundances. We investigate the implications of the new nickel abundance for studies of the solar oxygen abundance based on the [O I] 630 nm line in the quiet Sun. Furthermore, we demonstrate that the oxygen abundance implied by the recent sunspot spectropolarimetric study of Centeno & Socas-Navarro needs to be revised downwards from log epsilon_O = 8.86 +/- 0.07 to 8.71 +/- 0.10. This revision is based on the new nickel abundance, application of the best available gf-value for the 630 nm forbidden oxygen line, and a more transparent treatment of CO formation. Determinations of the solar oxygen content relying on forbidden lines now appear to converge around log epsilon_O = 8.7.

Pat Scott; Martin Asplund; Nicolas Grevesse; A. Jacques Sauval

2008-11-05T23:59:59.000Z

129

Natural Gas | Department of Energy  

Energy Savers (EERE)

Natural Gas Natural Gas Many heavy-duty fleets depend on diesel fuel. But an increasing number of trucking companies are transitioning their vehicles to run on liquefied natural...

130

Helioseismological Implications of Recent Solar Abundance Determinations  

E-Print Network (OSTI)

We show that standard solar models are in good agreement with the helioseismologically determined sound speed and density as a function of solar radius, the depth of the convective zone, and the surface helium abundance, as long as those models do not incorporate the most recent heavy element abundance determinations. However, sophisticated new analyses of the solar atmosphere infer lower abundances of the lighter metals (like C, N, O, Ne, and Ar) than the previously widely used surface abundances. We show that solar models that include the lower heavy element abundances disagree with the solar profiles of sound speed and density as well as the depth of the convective zone and the helium abundance. The disagreements for models with the new abundances range from factors of several to many times the quoted uncertainties in the helioseismological measurements. The disagreements are at temperatures below what is required for solar interior fusion reactions and therefore do not significantly affect solar neutrino emission. If errors in thecalculated OPAL opacities are solely responsible for the disagreements, then the corrections in the opacity must extend from 2 times 10^6 K (R = 0.7R_Sun)to 5 times 10^6 K (R = 0.4 R_Sun), with opacity increases of order 10%.

John N. Bahcall; Sarbani Basu; Marc Pinsonneault; Aldo M. Serenelli

2004-07-04T23:59:59.000Z

131

On the solar abundance of indium  

E-Print Network (OSTI)

The generally adopted value for the solar abundance of indium is over six times higher than the meteoritic value. We address this discrepancy through numerical synthesis of the 451.13 nm line on which all indium abundance studies are based, both for the quiet-sun and the sunspot umbra spectrum, employing standard atmosphere models and accounting for hyperfine structure and Zeeman splitting in detail. The results, as well as a re-appraisal of indium nucleosynthesis, suggest that the solar indium abundance is close to the meteoritic value, and that some unidentified ion line causes the 451.13 nm feature in the quiet-sun spectrum.

N. Vitas; I. Vince; M. Lugaro; O. Andriyenko; M. Gosic; R. J. Rutten

2007-11-14T23:59:59.000Z

132

1999 Macmillan Magazines Ltd letters to nature  

E-Print Network (OSTI)

leads to chaos. Nature 364, 232­235 (1993). 5. Sinclair, A. R. E. et al. Can the solar cycle and climate-wave structure which may be seen in the eight lattice `snapshots' of Fig. 5b­i. Population abundances in the meta process that has the potential to shape the distribution and abundance of species over all scales, from

Allen, Jont

133

The iron abundance of the Magellanic Bridge  

E-Print Network (OSTI)

High-resolution HST ultra-violet spectra for five B-type stars in the Magellanic Bridge and in the Large and Small Magellanic Clouds have been analysed to estimate their iron abundances. Those for the Clouds are lower than estimates obtained from late-type stars or the optical lines in B-type stars by approximately 0.5 dex. This may be due to systematic errors possibly arising from non-LTE effects or from errors in the atomic data as similar low Fe abundances having previously been reported from the analysis of the ultra-violet spectra of Galactic early-type stars. The iron abundance estimates for all three Bridge targets appear to be significantly lower than those found for the SMC and LMC by approximately -0.5 dex and -0.8 dex respectively and these differential results should not be affected by any systematic errors present in the absolute abundance estimates. These differential iron abundance estimates are consistent with the underabundances for C, N, O, Mg and Si of approximately -1.1 dex relative to our Galaxy previously found in our Bridge targets. The implications of these very low metal abundances for the Magellanic Bridge are discussed in terms of metal deficient material being stripped from the SMC.

P. L. Dufton; R. S. I. Ryans; H. M. A. Thompson; R. A. Street

2008-02-01T23:59:59.000Z

134

Planetary nebulae abundances and stellar evolution  

E-Print Network (OSTI)

A summary is given of planetary nebulae abundances from ISO measurements. It is shown that these nebulae show abundance gradients (with galactocentric distance), which in the case of neon, argon, sulfur and oxygen (with four exceptions) are the same as HII regions and early type star abundance gradients. The abundance of these elements predicted from these gradients at the distance of the Sun from the center are exactly the solar abundance. Sulfur is the exception to this; the reason for this is discussed. The higher solar neon abundance is confirmed; this is discussed in terms of the results of helioseismology. Evidence is presented for oxygen destruction via ON cycling having occurred in the progenitors of four planetary nebulae with bilobal structure. These progenitor stars had a high mass, probably greater than 5 solar masses. This is deduced from the high values of He/H and N/H found in these nebulae. Formation of nitrogen, helium and carbon are discussed. The high mass progenitors which showed oxygen destruction are shown to have probably destroyed carbon as well. This is probably the result of hot bottom burning.

S. R. Pottasch; J. Bernard-Salas

2006-07-31T23:59:59.000Z

135

Oxygen abundance of open cluster dwarfs  

E-Print Network (OSTI)

We present oxygen abundances of dwarfs in the young open cluster IC 4665 deduced from the OI $\\lambda$7774 triplet lines and of dwarfs in the open cluster Pleiades derived from the [OI] $\\lambda$6300 forbidden line. Stellar parameters and oxygen abundances were derived using the spectroscopic synthesis tool SME (Spectroscopy Made Easy). We find a dramatic increase in the upper boundary of the OI triplet abundances with decreasing temperature in the dwarfs of IC 4665, consistent with the trend found by Schuler et al. in the open clusters Pleiades and M 34, and to a less extent in the cool dwarfs of Hyades (Schuler et al. 2006a) and UMa (King & Schuler 2005). By contrast, oxygen abundances derived from the [OI] $\\lambda$6300 forbidden line for stars in Pleiades and Hyades (Schuler et al. 2006b) are constant within the errors. Possible mechanisms that may lead a varying oxygen triplet line abundance are examined, including systematic errors in the stellar parameter determinations, the NLTE effects, surface activities and granulation. The age-related effects stellar surface activities (especially the chromospheric activities) are suggested by our analysis to blame for the large spreads of oxygen triplet line abundances.

Z. -X. Shen; X. -W. Liu; H. -W. Zhang; B. Jones; D. N. C. Lin

2007-03-30T23:59:59.000Z

136

Element abundances in solar energetic particles: two physical processes, two abundance patterns  

E-Print Network (OSTI)

Abundances of elements comprising solar energetic particles (SEPs) come with two very different patterns. Historically called "impulsive" and "gradual" events, they have been studied for 40 years, 20 years by the Wind spacecraft. Gradual SEP events measure coronal abundances. They are produced when shock waves, driven by coronal mass ejections (CMEs), accelerate the ambient coronal plasma; we discuss the average abundances of 21 elements that differ from corresponding solar photospheric abundances by a well-known dependence on the first ionization potential (FIP) of the element. The smaller impulsive ("3He-rich") SEP events are associated with magnetic reconnection involving open field lines from solar flares or jets that also eject plasma to produce accompanying CMEs. These events produce striking heavy-element abundance enhancements, relative to coronal abundances, by an average factor of 3 at Ne, 9 at Fe, and 900 for elements with 76 0.1 are even more strongly associated with narrow, slow CMEs, cooler coro...

Reames, Donald V

2015-01-01T23:59:59.000Z

137

Empirical Solar Abundance Scaling Laws of Supernova {gamma} Process Isotopes  

SciTech Connect

Analyzing the solar system abundances, we have found two empirical abundance scaling laws concerning the p- and s-nuclei with the same atomic number. They are evidence that the 27 p-nuclei are synthesized by the supernova {gamma}-process. The scalings lead to a novel concept of 'universality of {gamma}-process' that the s/p and p/p ratios of nuclei produced by individual {gamma}-processes are almost constant, respectively. We have calculated the ratios of materials produced by the {gamma}-process based on core-collapse supernova explosion models under various astrophysical conditions and found that the scalings hold for individual {gamma}-processes independent of the conditions assumed. The results further suggest an extended universality that the s/p ratios in the {gamma}-process layers are not only constant but also centered on a specific value of 3. With this specific value and the scaling of the s/p ratios, we estimate that the ratios of the s-process abundance contributions from the AGB stars to the massive stars are almost 6.7 for the s-nuclei of A>90 in the solar system.

Hayakawa, Takehito [Kansai Photon Science Institute, Japan Atomic Energy Agency, Kazoo, Kyoto 619-0215 (Japan); Iwamoto, Nobuyuki [Nuclear Data Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195 (Japan); Kajino, Toshitaka [National Astronomical Observatory, Osawa, Mitaka, Tokyo 181-8588 (Japan); Shizum, Toshiyuki [Kansai Photon Science Institute, Japan Atomic Energy Agency, Kizugawa, Kyoto 619-0215 (Japan); Umeda, Hideyuki; Nomoto, Ken'Ichi [Department of Astronomy, Graduate School of Science, University of Tokyo, Bunkyo-ku, Tokyo 113-0033 (Japan)

2008-11-11T23:59:59.000Z

138

Case Number:  

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

Name of Petitioner: Name of Petitioner: Date of Filing: Case Number: Department of Energy Washington, DC 20585 JUL 2 2 2009 DEPARTMENT OF ENERGY OFFICE OF HEARINGS AND APPEALS Appeal Dean P. Dennis March 2, 2009 TBA-0072 Dean D. Dennis filed a complaint of retaliation under the Department of Energy (DOE) Contractor Employee Protection Program, 10 C.F.R. Part 708. Mr. Dennis alleged that he engaged in protected activity and that his employer, National Security Technologies, LLC (NSTec ), subsequently terminated him. An Office of Hearings and Appeals (OHA) Hearing Officer denied relief in Dean P. Dennis, Case No. TBH-0072, 1 and Mr. Dennis filed the instant appeal. As discussed below, the appeal is denied. I. Background The DOE established its Contractor Employee Protection Program to "safeguard public

139

JOB NUMBER  

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

. . . . . . . . . .: LEAVE BLANK (NARA use only) JOB NUMBER N/-&*W- 9d - 3 DATE RECEIVED " -1s - 9 J - NOTIFICATION TOAGENCY , In accordance with the provisions of 44 U.S.C. 3303a the disposition request. including amendments, is ap roved except , . l for items that may be marke,, ,"dis osition not approved" or "withdrawn in c o i m n 10. 4. NAME OF PERSON WITH WHOM TO CONFER 5 TELEPHONE Jannie Kindred (202) 5&-333 5 - 2 -96 6 AGENCYCERTIFICATION -. ~ - I hereby certify that I am authorized to act for this agency in matters pertaining to the disposition of its records and that the records roposed for disposal are not now needed for the business of this agency or wiRnot be needed after t G t r & s s d ; and that written concurrence from

140

KPA Number  

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

Supports CMM-SW Level 3 Supports CMM-SW Level 3 Mapping of the DOE Information Systems Engineering Methodology to the Software Engineering Institute (SEI) Software Capability Maturity Model (CMM-SW) level 3. Date: September 2002 Page 1 KPA Number KPA Activity SEM Section SEM Work Product SQSE Web site http://cio.doe.gov/sqse ORGANIZATION PROCESS FOCUS OPF-1 The software process is assessed periodically, and action plans are developed to address the assessment findings. Chapter 1 * Organizational Process Management * Process Improvement Action Plan * Methodologies ! DOE Methodologies ! SEM OPF-2 The organization develops and maintains a plan for its software process development and improvement activities. Chapter 1 * Organizational Process Management * Process Improvement

Note: This page contains sample records for the topic "number natural abundance" 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.


141

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

,366 ,366 95,493 1.08 0 0.00 1 0.03 29,406 0.56 1,206 0.04 20,328 0.64 146,434 0.73 - Natural Gas 1996 Million Percent of Million Percent of Cu. Feet National Total Cu. Feet National Total Net Interstate Movements: Industrial: Marketed Production: Vehicle Fuel: Deliveries to Consumers: Electric Residential: Utilities: Commercial: Total: South Carolina South Carolina 88. Summary Statistics for Natural Gas South Carolina, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ...........................................

142

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

0,216 0,216 50,022 0.56 135 0.00 49 1.67 85,533 1.63 8,455 0.31 45,842 1.45 189,901 0.95 - Natural Gas 1996 Million Percent of Million Percent of Cu. Feet National Total Cu. Feet National Total Net Interstate Movements: Industrial: Marketed Production: Vehicle Fuel: Deliveries to Consumers: Electric Residential: Utilities: Commercial: Total: M a r y l a n d Maryland 68. Summary Statistics for Natural Gas Maryland, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... NA NA NA NA NA Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 9 7 7 7 8 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 33 28 26 22 135 From Oil Wells ...........................................

143

Dual spatial maps of transcript and protein abundance in the...  

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

Dual spatial maps of transcript and protein abundance in the mouse brain. Dual spatial maps of transcript and protein abundance in the mouse brain. Abstract: Integrating...

144

Engineering Density of States of Earth Abundant Semiconductors...  

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

Density of States of Earth Abundant Semiconductors for Enhanced Thermoelectric Power Factor Engineering Density of States of Earth Abundant Semiconductors for Enhanced...

145

Mapping protein abundance patterns in the brain using voxelation...  

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

protein abundance patterns in the brain using voxelation combined with liquid chromatography and mass spectrometry. Mapping protein abundance patterns in the brain using voxelation...

146

Abundances of massive stars: some recent developments  

E-Print Network (OSTI)

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

T. Morel

2008-11-25T23:59:59.000Z

147

CAUSES OF FLUCTUATIONS IN ABUNDANCE OF CONNECTICUT  

E-Print Network (OSTI)

CAUSES OF FLUCTUATIONS IN ABUNDANCE OF CONNECTICUT ·RIVER .SHAD BY REYNOLD A. FREDIN FISHERY effort, and tagging data which was used t.o estimate the size of the shad runs in the Connecticut River. effect on the" size of the runs entering the river," Investigation of the Connecticut River shad fishery

148

Improved Neutron-Capture Element Abundances in Planetary N. C. SterlingA,I  

E-Print Network (OSTI)

Improved Neutron-Capture Element Abundances in Planetary Nebulae N. C. SterlingA,I , H. L of neutron(n)-capture elements that cannot be detected in asymptotic giant branch (AGB) stars. However Approximately half of the neutron(n)-capture elements (atomic number Z > 30) in the Universe are created by slow

Royer, Dana

149

New Measurement of Metal Abundance in the Elliptical Galaxy NGC 4636 with Asca  

E-Print Network (OSTI)

High quality X-ray spectra of NGC 4636 are obtained with ASCA. Theoretical models are found unable to reproduce the data in the Fe-L line region. Spectral data above 1.4 keV indicate that Mg to Si abundance ratio is $\\sim 1$ solar. Assuming that the abundance ratios among $\\alpha$-elements are the same with the solar ratios, spectral fit with increased systematic error in the 0.4--1.6 keV range gives abundances of $\\alpha$-elements and Fe to be both $\\sim$ 1 solar by taking one solar of Fe to be 3.24$\\times 10^{-5}$ by number. These new abundance results solve discrepancy between stellar and hot-gas metallicity, but still a low supernova rate is implied. We also detect strong abundance gradients for both $\\alpha$-elements and iron in a similar fashion. The abundance is $\\sim 1$ solar within $4'$, and decreases outerwards down to $0.2\\sim 0.3$ solar at $10'$ from the galaxy center. Dilution due to an extended hot gas is suggested.

Kyoko Matsushita; Kazuo Makishima; Etsuko Rokutanda; Noriko Y. Yamasaki; Takaya Ohashi

1997-09-02T23:59:59.000Z

150

The abundance pattern of the lambda Bootis stars  

E-Print Network (OSTI)

Within a project to investigate the properties of lambda Bootis stars, we report on their abundance pattern. High resolution spectra have been obtained for a total of twelve candidate lambda Bootis stars, four of them being contained in spectroscopic binary systems, and detailed abundance analyses have been performed. All program stars show a characteristic lambda Bootis abundance pattern (deficient heavy elements and solar abundant light elements) and an enhanced abundance of Na. This work raises the fraction of lambda Bootis stars with known abundances to 50%. The resulting abundances complemented by literature data are used to construct a "mean lambda Bootis abundance pattern", which exhibits, apart from general underabundances of heavy elements (about -1 dex) and solar abundances of C, N, O, Na and S, a star-to-star scatter which is up to twice as large as for a comparable sample of normal stars.

U. Heiter

2001-12-07T23:59:59.000Z

151

Probing AGB nucleosynthesis via accurate Planetary Nebula abundances  

E-Print Network (OSTI)

The elemental abundances of ten planetary nebulae, derived with high accuracy including ISO and IUE spectra, are analysed with the aid of synthetic evolutionary models for the TP-AGB phase. Model prescriptions are varied until we achieve the simultaneous reproduction of all elemental features, which allows placing important constraints on the characteristic masses and nucleosynthetic processes experienced by the stellar progenitors. First of all, it is possible to separate the sample into two groups of PNe, one indicating the occurrence of only the third dredge-up during the TP-AGB phase, and the other showing also the chemical signature of hot-bottom burning. The former group is reproduced by stellar models with variable molecular opacities (see Marigo 2002), adopting initial solar metallicity, and typical efficiency of the third dredge-up 0.3-0.4. The latter group of PNe, with extremely high He content 0.15TP-AGB progenitors (M > 4.5-5.0 Mo) with LMC composition have suffered a number of very efficient, carbon-poor, dredge-up events. Finally, the neon abundances of the He-rich PNe can be recovered by invoking a significant production of 22Ne during thermal pulses, which would imply a reduced role of the 22Ne(alpha,n)25Mg reaction as neutron source to the s-process nucleosynthesis in these stars.

P. Marigo; J. Bernard-Salas; S. R. Pottasch; A. G. G. M. Tielens; P. R. Wesselius

2003-07-11T23:59:59.000Z

152

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

68,747 68,747 34,577 0.39 0 0.00 34 1.16 14,941 0.29 0 0.00 11,506 0.36 61,058 0.31 I d a h o Idaho 60. Summary Statistics for Natural Gas Idaho, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation.......................... 0 0 0 0 0 Vented

153

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

0 0 0 0.00 0 0.00 0 0.00 540 0.01 0 0.00 2,132 0.07 2,672 0.01 H a w a i i Hawaii 59. Summary Statistics for Natural Gas Hawaii, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation.......................... 0 0 0 0 0 Vented and Flared

154

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

483,052 483,052 136,722 1.54 6,006 0.03 88 3.00 16,293 0.31 283,557 10.38 41,810 1.32 478,471 2.39 F l o r i d a Florida 57. Summary Statistics for Natural Gas Florida, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 47 50 98 92 96 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 7,584 8,011 8,468 7,133 6,706 Total.............................................................. 7,584 8,011 8,468 7,133 6,706 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ...............

155

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

291,898 291,898 113,995 1.29 0 0.00 4 0.14 88,078 1.68 3,491 0.13 54,571 1.73 260,140 1.30 I o w a Iowa 63. Summary Statistics for Natural Gas Iowa, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation.......................... 0 0 0

156

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

Vehicle Fuel: Vehicle Fuel: Deliveries to Consumers: Electric Residential: Utilities: Commercial: Total: New England New England 36. Summary Statistics for Natural Gas New England, 1992-1996 Table 691,089 167,354 1.89 0 0.00 40 1.36 187,469 3.58 80,592 2.95 160,761 5.09 596,215 2.98 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................

157

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

29,693 29,693 0 0.00 0 0.00 6 0.20 17,290 0.33 0 0.00 16,347 0.52 33,644 0.17 District of Columbia District of Columbia 56. Summary Statistics for Natural Gas District of Columbia, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

158

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

42,980 42,980 14,164 0.16 0 0.00 1 0.03 9,791 0.19 23,370 0.86 6,694 0.21 54,020 0.27 D e l a w a r e Delaware 55. Summary Statistics for Natural Gas Delaware, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

159

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

-49,536 -49,536 7,911 0.09 49,674 0.25 15 0.51 12,591 0.24 3 0.00 12,150 0.38 32,670 0.16 North Dakota North Dakota 82. Summary Statistics for Natural Gas North Dakota, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 496 525 507 463 462 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 104 101 104 99 108 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 12,461 18,892 19,592 16,914 16,810 From Oil Wells ........................................... 47,518 46,059 43,640 39,760 38,906 Total.............................................................. 59,979 64,951 63,232 56,674 55,716 Repressuring ................................................

160

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

21,547 21,547 4,916 0.06 0 0.00 0 0.00 7,012 0.13 3 0.00 7,099 0.22 19,031 0.10 N e w H a m p s h i r e New Hampshire 77. Summary Statistics for Natural Gas New Hampshire, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

Note: This page contains sample records for the topic "number natural abundance" 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

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

139,881 139,881 26,979 0.30 463 0.00 115 3.92 27,709 0.53 19,248 0.70 28,987 0.92 103,037 0.52 A r i z o n a Arizona 50. Summary Statistics for Natural Gas Arizona, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... NA NA NA NA NA Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 6 6 6 7 7 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 721 508 711 470 417 From Oil Wells ........................................... 72 110 48 88 47 Total.............................................................. 794 618 759 558 464 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease

162

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

Middle Middle Atlantic Middle Atlantic 37. Summary Statistics for Natural Gas Middle Atlantic, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 1,857 1,981 2,042 1,679 1,928 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 36,906 36,857 26,180 37,159 38,000 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 161,372 152,717 140,444 128,677 152,494 From Oil Wells ........................................... 824 610 539 723 641 Total.............................................................. 162,196 153,327 140,982 129,400 153,134 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed

163

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

386,690 386,690 102,471 1.16 0 0.00 43 1.47 142,319 2.72 5,301 0.19 98,537 3.12 348,671 1.74 M i n n e s o t a Minnesota 71. Summary Statistics for Natural Gas Minnesota, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

164

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

1,108,583 1,108,583 322,275 3.63 298 0.00 32 1.09 538,749 10.28 25,863 0.95 218,054 6.90 1,104,972 5.52 I l l i n o i s Illinois 61. Summary Statistics for Natural Gas Illinois, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... NA NA NA NA NA Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 382 385 390 372 370 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 337 330 323 325 289 From Oil Wells ........................................... 10 10 10 10 9 Total.............................................................. 347 340 333 335 298 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ...............

165

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

286,485 286,485 71,533 0.81 25 0.00 31 1.06 137,225 2.62 5,223 0.19 72,802 2.31 286,814 1.43 M i s s o u r i Missouri 73. Summary Statistics for Natural Gas Missouri, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... NA NA NA NA NA Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 5 8 12 15 24 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 27 14 8 16 25 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 27 14 8 16 25 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

166

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

411,951 411,951 100,015 1.13 0 0.00 5 0.17 114,365 2.18 45,037 1.65 96,187 3.05 355,609 1.78 Massachusetts Massachusetts 69. Summary Statistics for Natural Gas Massachusetts, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

167

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

226,798 226,798 104,124 1.17 0 0.00 0 0.00 58,812 1.12 2,381 0.09 40,467 1.28 205,783 1.03 North Carolina North Carolina 81. Summary Statistics for Natural Gas North Carolina, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 0 0 0 0 0 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 0 0 0 0 0 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 0 0 0 0 0 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 0 0 0 0 0 Repressuring ................................................ 0 0 0 0 0 Nonhydrocarbon Gases Removed ............... 0 0 0 0 0 Wet After Lease Separation..........................

168

VOLUME 85, NUMBER 9 P H Y S I C A L R E V I E W L E T T E R S 28 AUGUST 2000 Nature, Strength, and Consequences of Indirect Adsorbate Interactions on Metals  

E-Print Network (OSTI)

, and Consequences of Indirect Adsorbate Interactions on Metals A. Bogicevic,1, * S. Ovesson,2 P. Hyldgaard,2 B. I adsorbed on metals affect each other indirectly even over considerable distances. Via systematic density-functional calculations, we establish the nature and strength of such interactions, and explain for what adsorbate systems

Brune, Harald

169

A garden mulch is any material spread on the soil surface to modify the environment where the plant is growing. The materials used can be natural or synthetic and can be used in any number of combinations  

E-Print Network (OSTI)

organic mulching materials include crushed corn cobs, peanut hulls, buckwheat hulls, bark and wood chips, wood shavings, seaweed and peat moss. All natural mulches should be applied after the crop has begun, as this increases the risk of disease. The soil should also be weed-free and moist. Pebbles, stone chips, gravel

New Hampshire, University of

170

Natural Gas  

Science Journals Connector (OSTI)

30 May 1974 research-article Natural Gas C. P. Coppack This paper reviews the world's existing natural gas reserves and future expectations, together with natural gas consumption in 1972, by main geographic...

1974-01-01T23:59:59.000Z

171

Oxygen abundances in planet-harbouring stars. Comparison of different abundance indicators  

E-Print Network (OSTI)

We present a detailed and uniform study of oxygen abundances in 155 solar type stars, 96 of which are planet hosts and 59 of which form part of a volume-limited comparison sample with no known planets. EW measurements were carried out for the [O I] 6300 \\AA line and the O I triplet, and spectral synthesis was performed for several OH lines. NLTE corrections were calculated and applied to the LTE abundance results derived from the O I 7771-5 \\AA\\ triplet. Abundances from [O I], the O I triplet and near-UV OH were obtained in 103, 87 and 77 dwarfs, respectively. We present the first detailed and uniform comparison of these three oxygen indicators in a large sample of solar-type stars. There is good agreement between the [O/H] ratios from forbidden and OH lines, while the NLTE triplet shows a systematically lower abundance. We found that discrepancies between OH, [O I] and the O I triplet do not exceed 0.2 dex in most cases. We have studied abundance trends in planet host and comparison sample stars, and no obvious anomalies related to the presence of planets have been detected. All three indicators show that, on average, [O/Fe] decreases with [Fe/H] in the metallicity range -0.8oxygen overabundance of 0.1-0.2dex with respect to the comparison sample.

A. Ecuvillon; G. Israelian; N. C. Santos; N. G. Shchukina; M. Mayor; R. Rebolo

2005-09-13T23:59:59.000Z

172

General limit on the relation between abundances of D and $^7$Li in big bang nucleosynthesis with nucleon injections  

E-Print Network (OSTI)

The injections of energetic hadrons could have occurred in the early universe by decays of hypothetical long-lived exotic particles. The injections induce the showers of nonthermal hadrons via nuclear scattering. Neutrons generated at these events can react with $^7$Be nuclei and reduce $^7$Be abundance solving a problem of the primordial $^7$Li abundance. We suggest that thermal neutron injection is a way to derive a model independent conservative limit on the relation between abundances of D and $^7$Li in a hadronic energy injection model. We emphasize that an uncertainty in cross sections of inelastic $n+p$ scattering affects the total number of induced neutrons, which determines final abundances of D and $^7$Li. In addition, the annihilations of antinucleons with $^4$He result in higher D abundance and trigger nonthermal $^6$Li production. It is concluded that a reduction of $^7$Li abundance from a value in the standard big bang nucleosynthesis (BBN) model down to an observational two $\\sigma$ upper limit is necessarily accompanied by an undesirable increase of D abundance up to at least an observational 12 $\\sigma$ upper limit from observations of quasi-stellar object absorption line systems. The effects of antinucleons and secondary particles produced in the hadronic showers always lead to a severer constraint. The BBN models involving any injections of extra neutrons are thus unlikely to reproduce a small $^7$Li abundance consistent with observations.

Motohiko Kusakabe; Myung-Ki Cheoun; K. S. Kim

2014-04-11T23:59:59.000Z

173

CORONAL ABUNDANCES IN ORION NEBULA CLUSTER STARS A. Maggio,1  

E-Print Network (OSTI)

pattern of abundances for all stars, although a weak dependence on flare loop size may be present. The abundance of calcium is the only one which appears to vary substantially between stars, but this quantity

Micela, Giusi

174

DISTRIBUTION AND ABUNDANCE OF EGG AND LARVAL POPULATIONS OF THE  

E-Print Network (OSTI)

DISTRIBUTION AND ABUNDANCE OF EGG AND LARVAL POPULATIONS OF THE PACIFIC SARDINE BY ELBERT H OF THE INTERIOR, Douglas McKay, Secretary FISH AND WILDLIFE SERVICE, John L. Farley, Director DISTRIBUTION abundance_ _______________ ________ __ __ ___ ___ ____ __ 100 Reliability of estimates

175

Accuray of Stellar Opacities and the Solar Abundance Problem  

E-Print Network (OSTI)

Accuray of Stellar Opacities and the Solar Abundance Problem Anil K. Pradhan and Sultana N. Nahar opacity" that might bear on the solar abundances issue. Keywords: Radiative transfer --- in astrophysics­LTE hydrodynamic models. The new abundances of C, N, O, Ne etc. are 30­40% lower than the 'standard' solar

Pradhan, Anil

176

CHAOS I: Direct Chemical Abundances for HII Regions in NGC 628  

E-Print Network (OSTI)

The CHemical Abundances of Spirals (CHAOS) project leverages the combined power of the Large Binocular Telescope (LBT) with the broad spectral range and sensitivity of the Multi Object Double Spectrograph (MODS) to measure "direct" abundances in large samples of HII regions in spiral galaxies. We present LBT MODS observations of 62 HII regions in the nearby NGC628. We measure one or more auroral lines ([OIII] 4363, [NII] 5755, [SIII] 6312, or [OII] 7320,7330) in a large number of HII regions (40). Comparing derived temperatures from multiple auroral line measurements, we find: a strong correlation between temperatures based on [SIII] and [NII]; and large discrepancies for some temperatures based on [OII] and [OIII]. These trends are consistent with other observations in the literature, yet, given the widespread use and acceptance of [OIII] as a temperature determinant, the magnitude of the T[OIII] discrepancies still came as a surprise. Based on these results, we conduct a uniform abundance analysis using the...

Berg, Danielle A; Skillman, Evan D; Pogge, Richard W; Moustakas, John; Groh-Johnson, Mara

2015-01-01T23:59:59.000Z

177

Existence of long-lived isomeric states in naturally-occurring neutron-deficient Th isotopes  

SciTech Connect

Four long-lived neutron-deficient Th isotopes with atomic mass numbers 211 to 218 and abundances of (1-10)x10{sup -11} relative to {sup 232}Th have been found in a study of naturally-occurring Th using inductively coupled plasma-sector field mass spectrometry. It is deduced that long-lived isomeric states exist in these isotopes. The hypothesis that they might belong to a new class of long-lived high spin super- and hyperdeformed isomeric states is discussed.

Marinov, A.; Kashiv, Y. [Racah Institute of Physics, Hebrew University of Jerusalem, Jerusalem 91904 (Israel); Rodushkin, I. [Analytica AB, Aurorum 10, S-977 75 Luleaa (Sweden); Halicz, L.; Segal, I. [Geological Survey of Israel, 30 Malkhei Israel St., Jerusalem 95501 (Israel); Pape, A. [IPHC-UMR7178, IN2P3-CNRS/ULP, BP 28, F-67037 Strasbourg cedex 2 (France); Gentry, R. V. [Earth Science Associates, P.O. Box 12067, Knoxville, Tennessee 37912-0067 (United States); Miller, H. W. [P. O. Box 1092, Boulder, Colorado 80306-1092 (United States); Kolb, D. [Department of Physics, University GH Kassel, D-34109 Kassel (Germany); Brandt, R. [Kernchemie, Philipps University, D-35041 Marburg (Germany)

2007-08-15T23:59:59.000Z

178

Natural Gas  

Science Journals Connector (OSTI)

... CHOOSING an awkward moment, Phillips Petroleum Exploration have announced a new find of natural ...naturalgas ...

1967-02-11T23:59:59.000Z

179

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

4, 2011 at 2:00 P.M. 4, 2011 at 2:00 P.M. Next Release: Thursday, April 21, 2011 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, April 13, 2011) As the story of abundant natural gas supply continued to provide headlines for the market this report week (Wednesday to Wednesday, April 6-13), spot prices at most market locations in the lower 48 States decreased. Moderate temperatures also likely contributed to the price declines by limiting end-use demand and allowing for replenishment of storage supplies. During the report week, the Henry Hub spot price decreased by 3 cents per million Btu (MMBtu), or less than 1 percent, to $4.14 per MMBtu. Other market prices also decreased by up to 10 cents per MMBtu, with a few exceptions in the U.S. Northeast.

180

Solar abundances as derived from solar energetic particles  

SciTech Connect

Recent studies have shown that there are well defined average abundances of heavy ({ital Z}{gt}2) solar energetic particles (SEPs), with variations in the acceleration and propagation producing a systematic flare-to-flare fractionation that depends on the charge per unit mass of the ion. Correcting the average SEP abundances for the fractionation yields SEP-derived coronal abundances for 20 elements. Higher resolution SEP studies have also provided isotopic abundances for 5 elements. SEP-derived abundances indicate that elements with high first ionization potentials ({gt}10 eV) are depleted in the corona relative to the photosphere and provide new information on the solar abundance of C and {sup 22}Ne. Future SEP observations offer the prospect of a significant reduction of the uncertainties in solar elemental and isotopic abundances.

Stone, E.C. (California Institute of Technology, Pasadena, CA (USA))

1989-03-01T23:59:59.000Z

Note: This page contains sample records for the topic "number natural abundance" 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.


181

Abundant Renewable Energy ARE | Open Energy Information  

Open Energy Info (EERE)

ARE ARE Jump to: navigation, search Name Abundant Renewable Energy (ARE) Place Newberg, Oregon Zip 97132 Sector Solar, Wind energy Product Oregon-based provider of wind turbines, wind towers and dealers for wind turbines as well as solar passive heating systems. Coordinates 45.300325°, -122.975574° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.300325,"lon":-122.975574,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

182

Abundance ratios in hierarchical galaxy formation  

E-Print Network (OSTI)

The chemical enrichment and stellar abundance ratios of galaxies which form in a hierarchical clustering scheme are calculated. For this purpose I adopt the star formation histories (SFH) as they are delivered by semi-analytic models in Kauffmann (1996}. It turns out that the average SFH of cluster ellipticals does not yield globally alpha-enhanced stellar populations. The star burst that occurs when the elliptical forms in the major merger plays therefore a crucial role in producing alpha-enhancement. Only under the assumption that the IMF is significantly flattened with respect to the Salpeter value during the burst, a Mg/Fe overabundant population can be obtained. In particular for the interpretation of radial gradients in metallicity and alpha-enhancement, the mixing of global and burst populations are of great importance. The model predicts bright field galaxies to be less alpha-enhanced than their counterparts in clusters.

D. Thomas

1999-01-18T23:59:59.000Z

183

Large Silicon Abundance in Photodissociation Regions  

E-Print Network (OSTI)

We have made one-dimensional raster-scan observations of the rho Oph and sigma Sco star-forming regions with two spectrometers (SWS and LWS) on board the ISO. In the rho Oph region, [SiII] 35um, [OI] 63um, 146um, [CII] 158um, and the H2 pure rotational transition lines S(0) to S(3) are detected, and the PDR properties are derived as the radiation field scaled by the solar neighborhood value G_0~30-500, the gas density n~250--2500 /cc, and the surface temperature T~100-400 K. The ratio of [SiII] 35um to [OI] 146um indicates that silicon of 10--20% of the solar abundance must be in the gaseous form in the photodissociation region (PDR), suggesting that efficient dust destruction is undergoing even in the PDR and that part of silicon atoms may be contained in volatile forms in dust grains. The [OI] 63um and [CII] 158um emissions are too weak relative to [OI] 146um to be accounted for by standard PDR models. We propose a simple model, in which overlapping PDR clouds along the line of sight absorb the [OI] 63um and [CII] 158um emissions, and show that the proposed model reproduces the observed line intensities fairly well. In the sigma Sco region, we have detected 3 fine-structure lines, [OI] 63um, [NII] 122um, and [CII] 158um, and derived that 30-80% of the [CII] emission comes from the ionized gas. The upper limit of the [SiII] 35um is compatible with the solar abundance relative to nitrogen and no useful constraint on the gaseous Si is obtained for the sigma Sco region.

Yoko Okada; Takashi Onaka; Takao Nakagawa; Hiroshi Shibai; Daigo Tomono; Yukari Y. Yui

2005-11-17T23:59:59.000Z

184

The Natural Gas Pools Characteristics in Sulige Gas Field, Ordos Basin, China  

Science Journals Connector (OSTI)

There are abundant natural gas resources in Sulige gas field, Ordos Basin. The ascertained resources ... setting and reservoir heterogeneity. The characteristics of natural gas pools were analyzed from gas compos...

Lin Xiaoying; Zeng Jianhui; Zhang Shuichang

2012-01-01T23:59:59.000Z

185

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

73,669 73,669 141,300 1.59 221,822 1.12 3 0.10 46,289 0.88 33,988 1.24 31,006 0.98 252,585 1.26 A r k a n s a s Arkansas 51. Summary Statistics for Natural Gas Arkansas, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 1,750 1,552 1,607 1,563 1,470 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 3,500 3,500 3,500 3,988 4,020 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 171,543 166,273 161,967 161,390 182,895 From Oil Wells ........................................... 39,364 38,279 33,446 33,979 41,551 Total.............................................................. 210,906 204,552 195,413 195,369 224,446 Repressuring ................................................

186

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

-1,080,240 -1,080,240 201,024 2.27 1,734,887 8.78 133 4.54 76,629 1.46 136,436 4.99 46,152 1.46 460,373 2.30 O k l a h o m a Oklahoma 84. Summary Statistics for Natural Gas Oklahoma, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 13,926 13,289 13,487 13,438 13,074 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 28,902 29,118 29,121 29,733 29,733 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 1,674,405 1,732,997 1,626,858 1,521,857 1,467,695 From Oil Wells ........................................... 342,950 316,945 308,006 289,877 267,192 Total.............................................................. 2,017,356 2,049,942 1,934,864

187

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

7,038,115 7,038,115 3,528,911 39.78 13,646,477 69.09 183 6.24 408,861 7.80 1,461,718 53.49 281,452 8.91 5,681,125 28.40 West South Central West South Central 42. Summary Statistics for Natural Gas West South Central, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 87,198 84,777 88,034 88,734 62,357 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 92,212 95,288 94,233 102,525 102,864 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 11,599,913 11,749,649 11,959,444 11,824,788 12,116,665 From Oil Wells ........................................... 2,313,831 2,368,395 2,308,634 2,217,752 2,151,247 Total..............................................................

188

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

77,379 77,379 94,481 1.07 81,435 0.41 8 0.27 70,232 1.34 1,836 0.07 40,972 1.30 207,529 1.04 K e n t u c k y Kentucky 65. Summary Statistics for Natural Gas Kentucky, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 1,084 1,003 969 1,044 983 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 12,483 12,836 13,036 13,311 13,501 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 79,690 86,966 73,081 74,754 81,435 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. 79,690 86,966 73,081 74,754 81,435 Repressuring ................................................

189

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

-67,648 -67,648 75,616 0.85 480,828 2.43 0 0.00 16,720 0.32 31,767 1.16 29,447 0.93 153,549 0.77 Pacific Noncontiguous Pacific Noncontiguous 45. Summary Statistics for Natural Gas Pacific Noncontiguous, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 9,638 9,907 9,733 9,497 9,294 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 112 113 104 100 102 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 198,603 190,139 180,639 179,470 183,747 From Oil Wells ........................................... 2,427,110 2,588,202 2,905,261 3,190,433 3,189,837 Total.............................................................. 2,625,713 2,778,341

190

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

-310,913 -310,913 110,294 1.24 712,796 3.61 2 0.07 85,376 1.63 22,607 0.83 57,229 1.81 275,508 1.38 K a n s a s Kansas 64. Summary Statistics for Natural Gas Kansas, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 9,681 9,348 9,156 8,571 7,694 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 18,400 19,472 19,365 22,020 21,388 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 580,572 605,578 628,900 636,582 629,755 From Oil Wells ........................................... 79,169 82,579 85,759 86,807 85,876 Total.............................................................. 659,741 688,157 714,659 723,389 715,631 Repressuring ................................................

191

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

819,046 819,046 347,043 3.91 245,740 1.24 40 1.36 399,522 7.62 32,559 1.19 201,390 6.38 980,555 4.90 M i c h i g a n Michigan 70. Summary Statistics for Natural Gas Michigan, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 1,223 1,160 1,323 1,294 2,061 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 3,257 5,500 6,000 5,258 5,826 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 120,287 126,179 136,989 146,320 201,123 From Oil Wells ........................................... 80,192 84,119 91,332 97,547 50,281 Total.............................................................. 200,479 210,299 228,321 243,867 251,404 Repressuring ................................................

192

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

W W y o m i n g -775,410 50,253 0.57 666,036 3.37 14 0.48 13,534 0.26 87 0.00 9,721 0.31 73,609 0.37 Wyoming 98. Summary Statistics for Natural Gas Wyoming, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 10,826 10,933 10,879 12,166 12,320 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 3,111 3,615 3,942 4,196 4,510 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 751,693 880,596 949,343 988,671 981,115 From Oil Wells ........................................... 285,125 142,006 121,519 111,442 109,434 Total.............................................................. 1,036,817 1,022,602 1,070,862 1,100,113 1,090,549 Repressuring

193

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

-67,648 -67,648 75,616 0.85 480,828 2.43 0 0.00 16,179 0.31 31,767 1.16 27,315 0.86 150,877 0.75 A l a s k a Alaska 49. Summary Statistics for Natural Gas Alaska, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 9,638 9,907 9,733 9,497 9,294 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 112 113 104 100 102 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 198,603 190,139 180,639 179,470 183,747 From Oil Wells ........................................... 2,427,110 2,588,202 2,905,261 3,190,433 3,189,837 Total.............................................................. 2,625,713 2,778,341 3,085,900 3,369,904 3,373,584 Repressuring

194

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

628,189 628,189 449,511 5.07 765,699 3.88 100 3.41 528,662 10.09 39,700 1.45 347,721 11.01 1,365,694 6.83 West North Central West North Central 39. Summary Statistics for Natural Gas West North Central, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 10,177 9,873 9,663 9,034 8,156 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 18,569 19,687 19,623 22,277 21,669 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 594,551 626,728 651,594 655,917 648,822 From Oil Wells ........................................... 133,335 135,565 136,468 134,776 133,390 Total.............................................................. 727,886 762,293

195

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

1,048,760 1,048,760 322,661 3.64 18,131 0.09 54 1.84 403,264 7.69 142,688 5.22 253,075 8.01 1,121,742 5.61 N e w Y o r k New York 80. Summary Statistics for Natural Gas New York, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 329 264 242 197 232 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 5,906 5,757 5,884 6,134 6,208 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 22,697 20,587 19,937 17,677 17,494 From Oil Wells ........................................... 824 610 539 723 641 Total.............................................................. 23,521 21,197 20,476 18,400 18,134 Repressuring ................................................

196

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

1,554,530 1,554,530 311,229 3.51 3,094,431 15.67 442 15.08 299,923 5.72 105,479 3.86 210,381 6.66 927,454 4.64 Mountain Mountain 43. Summary Statistics for Natural Gas Mountain, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 38,711 38,987 37,366 39,275 38,944 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 30,965 34,975 38,539 38,775 41,236 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 2,352,729 2,723,393 3,046,159 3,131,205 3,166,689 From Oil Wells ........................................... 677,771 535,884 472,397 503,986 505,903 Total.............................................................. 3,030,499 3,259,277 3,518,556

197

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

1,592,465 1,592,465 716,648 8.08 239,415 1.21 182 6.21 457,792 8.73 334,123 12.23 320,153 10.14 1,828,898 9.14 South Atlantic South Atlantic 40. Summary Statistics for Natural Gas South Atlantic, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 3,307 3,811 4,496 4,427 4,729 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 39,412 35,149 41,307 37,822 36,827 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 206,766 208,892 234,058 236,072 233,409 From Oil Wells ........................................... 7,584 8,011 8,468 7,133 6,706 Total.............................................................. 214,349 216,903 242,526 243,204 240,115

198

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

1,999,161 1,999,161 895,529 10.10 287,933 1.46 1,402 47.82 569,235 10.86 338,640 12.39 308,804 9.78 2,113,610 10.57 Pacific Contiguous Pacific Contiguous 44. Summary Statistics for Natural Gas Pacific Contiguous, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 3,896 3,781 3,572 3,508 2,082 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 1,142 1,110 1,280 1,014 996 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... 156,635 124,207 117,725 96,329 88,173 From Oil Wells ........................................... 294,800 285,162 282,227 289,430 313,581 Total.............................................................. 451,435 409,370

199

Natural Gas  

Gasoline and Diesel Fuel Update (EIA)

-122,394 -122,394 49,997 0.56 178,984 0.91 5 0.17 37,390 0.71 205 0.01 28,025 0.89 115,622 0.58 West Virginia West Virginia 96. Summary Statistics for Natural Gas West Virginia, 1992-1996 Table 1992 1993 1994 1995 1996 Reserves (billion cubic feet) Estimated Proved Reserves (dry) as of December 31 ....................................... 2,356 2,439 2,565 2,499 2,703 Number of Gas and Gas Condensate Wells Producing at End of Year.............................. 38,250 33,716 39,830 36,144 35,148 Production (million cubic feet) Gross Withdrawals From Gas Wells ......................................... E 182,000 171,024 183,773 186,231 178,984 From Oil Wells ........................................... 0 0 0 0 0 Total.............................................................. E 182,000 171,024 183,773 186,231 178,984 Repressuring ................................................

200

Low-Cost, Abundant Energy: Paradise Lost?  

Science Journals Connector (OSTI)

...that oil make up for the natural...in total consumption for selected...unquestioned reserve pool for U.S...One way to reduce dependency...reduction in consumption. Price increases...admonitions to reduce driving speeds...rates of consumption, achievement...processing water may limit...

Hans H. Landsberg

1974-04-19T23:59:59.000Z

Note: This page contains sample records for the topic "number natural abundance" 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.


201

Early solar mass loss, opacity uncertainties, and the solar abundance problem  

SciTech Connect

Solar models calibrated with the new element abundance mixture of Asplund et al. published in 2005 no longer produce good agreement with the sound speed, convection zone depth, and convection zone helium abundance inferred from solar oscillation data. Attempts to modify the input physics of the standard model, for example, by including enhanced diffusion, increased opacities, accretion, convective overshoot, or gravity waves have not restored the good agreement attained with the prior abundances. Here we present new models including early mass loss via a stronger solar wind. Early mass loss has been investigated prior to the solar abundance problem to deplete lithium and resolve the 'faint early sun problem'. We find that mass loss modifies the core structure and deepens the convection zone, and so improves agreement with oscillation data using the new abundances: however the amount of mass loss must be small to avoid destroying all of the surface lithium, and agreement is not fully restored. We also considered the prospects for increasing solar interior opacities. In order to increase mixture opacities by the 30% required to mitigate the abundance problem, the opacities of individual elements (e.g., O, N, C, and Fe) must be revised by a factor of two to three for solar interior conditions: we are investigating the possibility of broader calculated line wings for bound-bound transitions at the relevant temperatures to enhance opacity. We find that including all of the elements in the AGS05 opacity mixture (through uranium at atomic number Z=92) instead of only the 17 elements in the OPAL opacity mixture increases opacities by a negligible 0.2%.

Guzik, Joyce Ann [Los Alamos National Laboratory; Keady, John [Los Alamos National Laboratory; Kilcrease, David [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

202

The Solar Heavy Element Abundances: I. Constraints from Stellar Interiors  

E-Print Network (OSTI)

The latest solar atmosphere models include non-LTE corrections and 3D hydrodynamic convection simulations. These models predict a significant reduction in the solar metal abundance, which leads to a serious conflict between helioseismic data and the predictions of solar interiors models. We demonstrate that the helioseismic constraints on the surface convection zone depth and helium abundance combined with stellar interiors models can be used to define the goodness of fit for a given chemical composition. After a detailed examination of the errors in the theoretical models we conclude that models constructed with the older solar abundances are consistent (solar abundance scale are discussed.

Franck Delahaye; Marc Pinsonneault

2005-11-29T23:59:59.000Z

203

High-Performance Thermoelectric Devices Based on Abundant Silicide...  

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

Development of high-performance thermoelectric devices for vehicle waste heat recovery will include fundamental research to use abundant promising low-cost thermoelectric...

204

Oxygen abundances in the most oxygen-rich spiral galaxies  

E-Print Network (OSTI)

Oxygen abundances in the spiral galaxies expected to be richest in oxygen are estimated. The new abundance determinations are based on the recently discovered ff-relation between auroral and nebular oxygen line fluxes in HII regions. We find that the maximum gas-phase oxygen abundance in the central regions of spiral galaxies is 12+log(O/H)~8.75. This value is significantly lower than the previously accepted value. The central oxygen abundance in the Milky Way is similar to that in other large spirals.

L. S. Pilyugin; T. X. Thuan; J. M. Vilchez

2006-01-06T23:59:59.000Z

205

GENERAL CHEMISTRY TEXTBOOK LIST ISBN Number  

E-Print Network (OSTI)

FALL 2013 GENERAL CHEMISTRY TEXTBOOK LIST Course Number ISBN Number Title of Text and/or Material Edition Author Publishers 11100 978-1-2591-9687-4 Introduction to Chemistry, 3rd ed. (packaged w 978-1-2591-6192-6 Chemistry, The Molecular Nature of Matter and Change, 6e (packaged w

Jiang, Wen

206

Probing AGB nucleosynthesis via accurate Planetary Nebula abundances  

E-Print Network (OSTI)

The elemental abundances of ten planetary nebulae, derived with high accuracy including ISO and IUE spectra, are analysed with the aid of synthetic evolutionary models for the TP-AGB phase. Model prescriptions are varied until we achieve the simultaneous reproduction of all elemental features, which allows placing important constraints on the characteristic masses and nucleosynthetic processes experienced by the stellar progenitors. First of all, it is possible to separate the sample into two groups of PNe, one indicating the occurrence of only the third dredge-up during the TP-AGB phase, and the other showing also the chemical signature of hot-bottom burning. The former group is reproduced by stellar models with variable molecular opacities (see Marigo 2002), adopting initial solar metallicity, and typical efficiency of the third dredge-up 0.3-0.4. The latter group of PNe, with extremely high He content 0.15 4.5-5.0 Mo) with LMC composition have suffered a number of very efficient, carbon-poor, dredge-up eve...

Marigo, P; Pottasch, S R; Tielens, A G G M; Wesselius, P R

2003-01-01T23:59:59.000Z

207

1999 Macmillan Magazines Ltd letters to nature  

E-Print Network (OSTI)

.nature.com 273 seems the most likely interpretation of our results, it is important to note that the excess 7 Li, 197±214 (1989). 3. Herbig, G. H. Lithium abundances in F5-G8 dwarfs. Astrophys. J. 141, 588±609 (1965 in the envelopes of main-sequence stars: constraints implied by the lithium, beryllium and boron observations

208

Quantification of Global MicroRNA Abundance by Selective Isotachophoresis  

E-Print Network (OSTI)

) for the quantification of global microRNA (miRNA) abundance in total RNA. We leverage the selectivity of ITP-throughput methods to quantify the global abundance of miRNAs in total RNA samples derived from diverse sources which allows fast, accurate, and absolute measurement of global miRNA levels from small amounts of total

Santiago, Juan G.

209

Nitrogen recombination lines and abundance in nova shells  

SciTech Connect

The observed intensities of N II lines in the DQ Her, CP Pup, and T Aur nova shells are compared with theoretical predictions. It is concluded that the relative intensities can be explained with excitation by recombination. The nitrogen abundances obtained from the line intensities relative to hydrogen have values about 400 to 700 times the solar abundance. 27 refs.

Escalante, V.; Dalgarno, A. (Universidad Nacional Autonoma de Mexico, Coyoacan (Mexico) Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (USA))

1991-03-01T23:59:59.000Z

210

Can Recently Derived Solar Photospheric Abundances Be Consistent with Helioseismology?  

E-Print Network (OSTI)

Recent solar abundance analyses (Asplund et al. 2004; Lodders 2003) revise downward the abundances of C, N, O, Ne, and Ar, which reduces the solar photospheric Z/X to 0.017, and Z to ~0.013. Solar models evolved with standard opacities and diffusion treatment using these new abundances give poor agreement with helioseismic inferences for sound speed profile, convection zone helium abundance, and convection zone depth. Here we present helioseismic results for evolved solar models with these reduced photospheric abundances, trying varying diffusion treatments. We compare results for models with no diffusion, enhanced thermal diffusion, and enhanced diffusion of C, N, O, Ne, and Mg only. We find that while each of these models provides some improvements compared to a solar model evolved with the new abundances and standard physics, none restores the good agreement with helioseismology attained using the earlier abundances of, e.g., Grevesse & Sauval (1998). We suggest that opacity increases of about 20% for conditions below the convection zone, or the possibility of accretion of lower-Z material at the surface as the sun arrived at the main sequence, should be investigated to restore agreement. In addition, the new abundance determinations should be re-considered, as, if they are correct, it will be difficult to reconcile solar models with helioseismic results.

J. Guzik; L. S. Watson

2005-01-25T23:59:59.000Z

211

Chapter 8 - Natural Gas  

Science Journals Connector (OSTI)

Although natural gas is a nonrenewable resource, it is included for discussion because its sudden growth from fracking will impact the development and use of renewable fuels. Firms who are engaged in the development of processes that employ synthesis gas as an intermediate have concluded that the synthesis gas is more economically obtainable by steam reforming of natural gas than by gasification of waste cellulose. In some instances, firms have largely abandoned the effort to produce a renewable fuel as such, and in others firms are developing hybrid processes that employ natural gas in combination with a fermentation system. Moreover, natural gas itself is an attractive fuel for internal combustion engines since it can be the least expensive option on a cost per joule basis. It is also aided by its high octane number of 130.

Arthur M. Brownstein

2015-01-01T23:59:59.000Z

212

The Ne/O abundance ratio in the quiet Sun  

E-Print Network (OSTI)

Aims: To determine the neon-to-oxygen abundance in the quiet Sun, a proxy for the photospheric abundance ratio. Method: An emission measure method applied to extreme ultraviolet emission lines of Ne IV-VI and O III-V ions observed by the Coronal Diagnostic Spectrometer on the SOHO satellite. Results: The average Ne/O abundance ratio in supergranule cell centre regions is 0.18 +/- 0.05, while in supergranule network regions is 0.16 +/- 0.04. A photospheric Ne/O ratio of 0.17 +/- 0.05 is suggested, in good agreement with the most recent compilation of solar photospheric abundances, but discrepant with a recent Ne/O ratio derived from stellar X-ray spectra and revised neon abundances suggested from solar interior models.

P. R. Young

2005-10-10T23:59:59.000Z

213

Natural Gas Exports from Iran  

Reports and Publications (EIA)

This assessment of the natural gas sector in Iran, with a focus on Iran’s natural gas exports, was prepared pursuant to section 505 (a) of the Iran Threat Reduction and Syria Human Rights Act of 2012 (Public Law No: 112-158). As requested, it includes: (1) an assessment of exports of natural gas from Iran; (2) an identification of the countries that purchase the most natural gas from Iran; (3) an assessment of alternative supplies of natural gas available to those countries; (4) an assessment of the impact a reduction in exports of natural gas from Iran would have on global natural gas supplies and the price of natural gas, especially in countries identified under number (2); and (5) such other information as the Administrator considers appropriate.

2012-01-01T23:59:59.000Z

214

THE SOLAR HEAVY ELEMENT ABUNDANCES. II. CONSTRAINTS FROM STELLAR ATMOSPHERES  

SciTech Connect

Estimates of the bulk metal abundance of the Sun derived from the latest generation of model atmospheres are significantly lower than the earlier standard values. In Paper I, we demonstrated that helioseismic data combined with stellar interiors theory set strong bounds on the solar metal abundance. The seismically derived abundances are inconsistent with the low photospheric abundances if the quoted errors in the atmospheric models (of order 0.05 dex) are correct. In this paper, we undertake a critical analysis of the solar metallicity and its uncertainty from a model atmospheric perspective, focusing on CNO. We argue that the non-LTE (NLTE) corrections for abundances derived from atomic features are overestimated in the recent abundance studies, while systematic errors in the absolute abundances are underestimated. In general, abundances derived from molecular features are lower than those derived from atomic features for the three-dimensional hydro models, while a weaker trend in the opposite direction tends to hold for abundances derived from one-dimensional models. If we adopt the internal consistency between different indicators as a measure of goodness of fit, we obtain intermediate abundances [C/H] = 8.44 +- 0.06, [N/H] = 7.96 +- 0.10 and [O/H] = 8.75 +- 0.08. The errors reflect the fact that both the high and low scales are internally consistent within the errors, and they are too large to conclude that there is a solar abundance problem. However, the center-to-limb continuum flux variations predicted in the simulations appear to be inconsistent with solar data based on recently published work. This would favor the traditional thermal structure and lead to high CNO abundances of (8.52, 7.96, 8.80) close to the seismic scale. We argue that further empirical tests of NLTE corrections and the thermal structure are required for precise absolute abundances. The sensitivity of the simulations to spatial resolution and systematic errors in the underlying atmospheric physics should also be examined, and these effects may lead to an overestimate of the impact of convective overshooting on the thermal structure of the outer layers of the solar atmosphere. The uncertainties in the solar oxygen also imply that strong conclusions about the absence of solar beryllium depletion cannot be made.

Pinsonneault, M. H. [Department of Astronomy, Ohio State University, Columbus, OH 43210 (United States); Delahaye, Franck [CEA, IRFU, Serv. Astrophys., F-91191 Gif-sur-Yvette (France)

2009-10-20T23:59:59.000Z

215

California Natural Gas Count of Underground Storage Capacity...  

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

Count of Underground Storage Capacity (Number of Elements) California Natural Gas Count of Underground Storage Capacity (Number of Elements) Decade Year-0 Year-1 Year-2 Year-3...

216

Determining stellar atmospheric parameters and chemical abundances of FGK stars with iSpec  

E-Print Network (OSTI)

Context. An increasing number of high-resolution stellar spectra is available today thanks to many past and ongoing extensive spectroscopic surveys. Consequently, the scientific community needs automatic procedures to derive atmospheric parameters and individual element abundances. Aims. Based on the widely known SPECTRUM code by R. O. Gray, we developed an integrated spectroscopic software framework suitable for the determination of atmospheric parameters (i.e., effective temperature, surface gravity, metallicity) and individual chemical abundances. The code, named iSpec and freely distributed, is written mainly in Python and can be used on different platforms. Methods. iSpec can derive atmospheric parameters by using the synthetic spectral fitting technique and the equivalent width method. We validated the performance of both approaches by developing two different pipelines and analyzing the Gaia FGK benchmark stars spectral library. The analysis was complemented with several tests designed to assess other ...

Blanco-Cuaresma, S; Heiter, U; Jofré, P

2014-01-01T23:59:59.000Z

217

Elements of number theory  

E-Print Network (OSTI)

The dissertation argues for the necessity of a morphosemantic theory of number, that is, a theory of number serviceable both to semantics and morphology. The basis for this position, and the empirical core of the dissertation, ...

Harbour, Daniel, 1975-

2003-01-01T23:59:59.000Z

218

natural gasoline  

Science Journals Connector (OSTI)

natural gasoline, condensate, distillate [Liquid hydrocarbons, generally clear or pale straw-coloured and of high API gravity (above 6o°), that are produced with wet gas] ? Gasbenzin n, Gasolin n ...

2014-08-01T23:59:59.000Z

219

Natural abundance radiocarbon studies of dissolved organic carbon (DOC) in the marine environment  

E-Print Network (OSTI)

or preservation over the salinity gradient. In addition, theet al. , Along the salinity gradient of the Delaware River,mixing along the salinity gradient indicating that DOC is

De Jesus, Roman Paul

2008-01-01T23:59:59.000Z

220

Natural Abundance Radiocarbon Studies of Dissolved Organic Carbon (DOC) in the Marine Environment  

E-Print Network (OSTI)

or preservation over the salinity gradient. In addition, theet al. , Along the salinity gradient of the Delaware River,mixing along the salinity gradient indicating that DOC is

de Jesus, Roman P

2008-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "number natural abundance" 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.


221

Bulk analysis of a simulated environmental sample in natural abundance performed in KAERI for nuclear safeguards  

Science Journals Connector (OSTI)

A highly accurate and precise analysis of ultra-trace amounts of nuclear materials contained in environmental samples plays an essential role in monitoring undeclared nuclear activities for nuclear safeguards pur...

Jong-Ho Park; Sunyoung Lee; Young-Geun Ha…

2014-08-01T23:59:59.000Z

222

Natural abundances of carbon isotopes in acetate from a coastal marine sediment  

Science Journals Connector (OSTI)

...isolat-ed from Cape Lookout Bight sediments. Samples were collected...anoxic sediments of Cape Lookout Bight, North Carolina. Recently...acetate cycling. Cape Lookout Bight is an organic-rich coastal basin about 2 km2 in area located 115...

NE Blair; CS Martens; DJ Des Marais

1987-04-03T23:59:59.000Z

223

-Amino acids, although less abundant than their -analogues, are also present in peptides and other natural  

E-Print Network (OSTI)

Polyhydroxyalkanoates (PHAs) are a family of carbon, energy and/or reducing power storage polymers, which a characteristic pro- ton NMR signal at 3.15 ppm for the hydroxy hydrogen at car- bon 3. In our experimental work was consumed. Compound 2 was reacted with sodium azide in water using hexadecyltributylphosphonium bromide

224

Sugar in Two Steps Hexose sugars are naturally abundant, but it is often useful to  

E-Print Network (OSTI)

on the decay of U isotopes to Pb can be problematic if damaged parts of zircons, the primary uranium that was quickly depleted. Observations of molecular clouds indicate that ultraviolet radiation selectively depleted in 16O. Yurimoto and Kuramoto (p. 1763; see the Perspective by Yin) have developed a model

Meyer, Karsten

225

Source Apportionment of Atmospheric PAHs in the Western Balkans by Natural Abundance Radiocarbon Analysis  

Science Journals Connector (OSTI)

This marks the first time that a CCSRA investigation could be executed on a geographically wide scale, providing a quantitative field-based source apportionment, which points out that also non-fossil combustion processes should be targeted for remedial action. ...

Zdenek Zencak; Jana Klanova; Ivan Holoubek; Örjan Gustafsson

2007-04-20T23:59:59.000Z

226

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

15, 2007 (next release 2:00 p.m. on November 29, 2007) 15, 2007 (next release 2:00 p.m. on November 29, 2007) Natural gas spot prices decreased this week, with the changes at most market locations somewhat more modest than the price changes observed over the past couple weeks. On the week (Wednesday-Wednesday, November 7-14), the price at the Henry Hub decreased 15 cents per MMBtu or about 2 percent. Relatively abundant supplies in the West and high stock levels in storage helped to drive spot prices lower this week. At the New York Mercantile Exchange (NYMEX), the price of the futures contract for December delivery moved up about 21 cents to $7.835 per MMBtu. Natural gas in storage was 3,536 Bcf as of Friday, November 9, which is 8.4 percent higher than the 5-year average of 3,263 Bcf. The spot price for West Texas Intermediate (WTI) crude oil decreased on the week by $2.44 per barrel or about 3 percent to trade yesterday at $94.02 per barrel or $16.21 per MMBtu.

227

NREL: Wind Research - Abundant Renewable Energy's ARE 442 Wind Turbine  

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

Abundant Renewable Energy's ARE 442 Wind Turbine Testing and Results Abundant Renewable Energy's ARE 442 Wind Turbine Testing and Results Get the Adobe Flash Player to see this video. A video of Abundant Renewable Energy's ARE 442 wind turbine. Text Version As part of the National Renewable Energy Laboratory and U.S. Department of Energy (NREL/DOE) Independent Testing project, NREL tested Abundant Renewable Energy's ARE 442 turbine at the National Wind Technology Center (NWTC). The ARE 442 is a 10-kilowatt (kW), three-bladed, horizontal-axis upwind small wind turbine. It has a hub height of 30.9 meters and a rotor diameter of 7.2 meters. The turbine has a single-phase permanent-magnet generator that operates at variable voltages up to 410 volts AC. Testing Summary The summary of the tests is below with the final reports.

228

Redox Active Catalysts Utilizing Earth Abundant Metals | Center...  

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

Redox Active Catalysts Utilizing Earth Abundant Metals 14 Mar 2014 Ryan Trovitch has recently joined the team of the BISfuel PIs. He is an Assistant Professor at the Department of...

229

Number of Existing Natural Gas Depleted Fields Storage  

Gasoline and Diesel Fuel Update (EIA)

326 324 331 331 329 330 1999-2012 326 324 331 331 329 330 1999-2012 Alabama 1 1 1 1 1 1 1999-2012 Arkansas 2 2 2 2 2 2 1999-2012 California 12 12 13 13 13 14 1999-2012 Colorado 8 8 9 9 9 10 1999-2012 Illinois 11 10 10 11 11 11 1999-2012 Indiana 10 10 10 9 9 10 1999-2012 Kansas 18 18 18 18 18 18 1999-2012 Kentucky 20 20 20 20 20 20 1999-2012 Louisiana 8 8 8 8 8 7 1999-2012 Maryland 1 1 1 1 1 1 1999-2012 Michigan 43 43 43 43 43 43 1999-2012 Mississippi 5 5 6 6 6 6 1999-2012 Montana 5 5 5 5 5 5 1999-2012 Nebraska 1 1 1 1 1 1 1999-2012 New Mexico 2 2 2 2 2 2 1999-2012 New York 23 23 25 25 25 26 1999-2012 Ohio 24 24 24 24 24 24 1999-2012 Oklahoma 13 13 13 13 13 12 1999-2012 Oregon 7 7 7 7 7 7 1999-2012

230

The Natural Number of Forward Markets for Electricity  

E-Print Network (OSTI)

is generated from hydroelectric resources, supply of whichsuch as nuclear and hydroelectric plants whose availabilityrelevance are the hydroelectric units, which serve 40% of

Suenaga, Hiroaki; Williams, Jeffrey

2005-01-01T23:59:59.000Z

231

The Natural Number of Forward Markets for Electricity  

E-Print Network (OSTI)

model: Price-load curve: Fuel price equation: P 0 t = bw t Qfactors, such as weather and fuel price, and is determinedhour t. In (1), only the fuel price and the load level vary

Suenaga, Hiroaki; Williams, Jeffrey

2005-01-01T23:59:59.000Z

232

Total Number of Existing Underground Natural Gas Storage Fields  

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

Monthly Annual Monthly Annual Download Series History Download Series History Definitions, Sources & Notes Definitions, Sources & Notes Show Data By: Data Series Area 2007 2008 2009 2010 2011 2012 View History U.S. 400 401 409 411 410 414 1989-2012 Alabama 2 2 2 2 2 2 1995-2012 Arkansas 2 2 2 2 2 2 1989-2012 California 12 12 13 13 13 14 1989-2012 Colorado 8 8 9 9 9 10 1989-2012 Illinois 29 28 28 28 28 28 1989-2012 Indiana 22 22 22 22 22 22 1989-2012 Iowa 4 4 4 4 4 4 1989-2012 Kansas 19 19 19 19 19 19 1989-2012 Kentucky 23 23 23 23 23 23 1989-2012 Louisiana 15 17 18 18 18 18 1989-2012 Maryland 1 1 1 1 1 1 1989-2012 Michigan 45 45 45 45 45 45 1989-2012 Minnesota 1 1 1 1 1 1 1989-2012

233

Galilean satellite eclipse studies. III - Jovian methane abundance  

SciTech Connect

The methane abundance in the lower Jovian stratosphere is measured using the Galilean satellite eclipse technique. The average mixing ratio at the locations measured is larger than the expected value for a solar abundance of carbon with the possibility of some zenographic variation. Observationally compatible values are found for the South Temperate Zone, the edge of the Great Red Spot and the South Tropical Zone, and the Great Red Spot.

Smith, D.W. (Washington, University, Seattle, Wash.); Greene, T.F.

1980-01-01T23:59:59.000Z

234

The Solar Heavy Element Abundances: II. Constraints from Stellar Atmospheres  

E-Print Network (OSTI)

Estimates of the bulk metal abundance of the Sun derived from the latest generation of model atmospheres are significantly lower than the earlier standard values. In Paper I we demonstrated that a low solar metallicity is inconsistent with helioseismology if the quoted errors in the atmospheres models (of order 0.05 dex) are correct. In this paper we undertake a critical analysis of the solar metallicity and its uncertainty from a model atmospheres perspective, focusing on CNO. We argue that the non-LTE corrections for abundances derived from atomic features are overestimated in the recent abundance studies, while systematic errors in the absolute abundances are underestimated. If we adopt the internal consistency between different indicators as a measure of goodness of fit, we obtain intermediate abundances [C/H] = 8.44 +/- 0.06, [N/H] = 7.96 +/- 0.10 and [O/H] = 8.75 +/- 0.08. The errors are too large to conclude that there is a solar abundance problem, and permit both the high and low scales. However, the center-to-limb continuum flux variations predicted in the simulations appear to be inconsistent with solar data, which would favor the traditional thermal structure and lead to high CNO abundances of (8.52, 7.96, 8.80) close to the seismic scale. We argue that further empirical tests of non-LTE corrections and the thermal structure are required for precise absolute abundances. The implications for beryllium depletion and possible sources of error in the numerical simulations are discussed.

M. H. Pinsonneault; Franck Delahaye

2006-06-04T23:59:59.000Z

235

TESTING FOR AZIMUTHAL ABUNDANCE GRADIENTS IN M101  

SciTech Connect

New optical spectra of 28 H II regions in the M101 disk have been obtained, yielding 10 new detections of the [O III] {lambda}4363 auroral line. The oxygen abundance gradient measured from these data, combined with previous observations, displays a local scatter of 0.15 {+-} 0.03 dex along an arc in the west side of the galaxy, compared with a smaller scatter of 0.08 {+-} 0.01 dex in the rest of the disk. One of the H II regions in our sample (H27) has a significantly lower oxygen abundance than surrounding nebulae at a similar galactocentric distance, while an additional, relatively nearby one (H128) was already known to have a high oxygen abundance for its position in the galaxy. These results represent marginal evidence for the existence of moderate deviations from chemical abundance homogeneity in the interstellar medium of M101. Using a variety of strong-line abundance indicators, we find no evidence for significant large-scale azimuthal variations of the oxygen abundance across the whole disk of the galaxy.

Li, Yanxia; Bresolin, Fabio [Institute for Astronomy, 2680 Woodlawn Dr., Honolulu, HI 96822 (United States)] [Institute for Astronomy, 2680 Woodlawn Dr., Honolulu, HI 96822 (United States); Kennicutt, Robert C. Jr. [Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom)] [Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom)

2013-03-20T23:59:59.000Z

236

Carbon and Strontium Abundances of Metal-Poor Stars  

E-Print Network (OSTI)

We present carbon and strontium abundances for 100 metal-poor stars measured from R$\\sim $7000 spectra obtained with the Echellette Spectrograph and Imager at the Keck Observatory. Using spectral synthesis of the G-band region, we have derived carbon abundances for stars ranging from [Fe/H]$=-1.3$ to [Fe/H]$=-3.8$. The formal errors are $\\sim 0.2$ dex in [C/Fe]. The strontium abundance in these stars was measured using spectral synthesis of the resonance line at 4215 {\\AA}. Using these two abundance measurments along with the barium abundances from our previous study of these stars, we show it is possible to identify neutron-capture-rich stars with our spectra. We find, as in other studies, a large scatter in [C/Fe] below [Fe/H]$ = -2$. Of the stars with [Fe/H]$<-2$, 9$\\pm$4% can be classified as carbon-rich metal-poor stars. The Sr and Ba abundances show that three of the carbon-rich stars are neutron-capture-rich, while two have normal Ba and Sr. This fraction of carbon enhanced stars is consistent with other studies that include this metallicity range.

David K. Lai; Jennifer A. Johnson; Michael Bolte; Sara Lucatello

2007-06-20T23:59:59.000Z

237

The coronal Ne/O abundance of alpha Centauri  

E-Print Network (OSTI)

Recent improvements in the modeling of solar convection and line formation led to downward revisions of the solar photospheric abundances of the lighter elements, which in turn led to changes in the radiative opacity of the solar interior and hence to conflicts with the solar convection zone depth as inferred from helioseismic oscillation frequencies. An increase of the solar Ne/O abundance to values as observed for nearby stars has been proposed as a solution. Because of the absence of strong neon lines in the optical, neon abundances are difficult to measure and the correct solar and stellar Ne/O abundances are currently hotly debated. Based on X-ray spectra obtained with XMM-Newton, we determine a reference value of Ne/O for the inactive, solar-like star alpha Cen (primarily alpha Cen B, which is the dominant component in X-rays), with three independent, line-based methods, using differential emission measure reconstruction and an emission measure-independent method. Our results indicate a value of approx. 0.28 for Ne/O in alpha Cen, approximately twice the value measured for the Sun, but still below the average value obtained for other stars. The low Ne/O abundance of the Sun is peculiar when compared to alpha Cen and other stars; our results emphasize the necessity to obtain more and accurate Ne/O abundance measurements of low activity stars.

C. Liefke; J. H. M. M. Schmitt

2006-09-01T23:59:59.000Z

238

DIRECT EVALUATION OF THE HELIUM ABUNDANCES IN OMEGA CENTAURI  

SciTech Connect

A direct measure of the helium abundances from the near-infrared transition of He I at 1.08 {mu}m is obtained for two nearly identical red giant stars in the globular cluster Omega Centauri. One star exhibits the He I line; the line is weak or absent in the other star. Detailed non-local thermal equilibrium semi-empirical models including expansion in spherical geometry are developed to match the chromospheric H{alpha}, H{beta}, and Ca II K lines, in order to predict the helium profile and derive a helium abundance. The red giant spectra suggest a helium abundance of Y {<=} 0.22 (LEID 54064) and Y = 0.39-0.44 (LEID 54084) corresponding to a difference in the abundance {Delta}Y {>=} 0.17. Helium is enhanced in the giant star (LEID 54084) that also contains enhanced aluminum and magnesium. This direct evaluation of the helium abundances gives observational support to the theoretical conjecture that multiple populations harbor enhanced helium in addition to light elements that are products of high-temperature hydrogen burning. We demonstrate that the 1.08 {mu}m He I line can yield a helium abundance in cool stars when constraints on the semi-empirical chromospheric model are provided by other spectroscopic features.

Dupree, A. K.; Avrett, E. H., E-mail: dupree@cfa.harvard.edu, E-mail: eavrett@cfa.harvard.edu [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States)

2013-08-20T23:59:59.000Z

239

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

9, 2010 at 2:00 P.M. 9, 2010 at 2:00 P.M. Next Release: Thursday, December 16, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, December 8, 2010) In response to cold weather across much of the United States, natural gas spot prices increased across the board this report week (December 1 – December 8). Though most increases were less than 50 cents per million Btu (MMBtu), prices at a number of trading points (notably in the Northeast and Florida) increased by several dollars. The Henry Hub spot price rose 25 cents, from $4.21 per MMBtu to $4.46 per MMBtu. At the New York Mercantile Exchange (NYMEX), the price of the natural gas near-month contract (January 2011) also increased, rising from $4.269 per MMBtu on December 1 to $4.606 per MMBtu on December 8.

240

Natural System  

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

Natural System Natural System Evaluation and Tool Development - FY11 Progress Report Prepared for U.S. Department of Energy Used Fuel Disposition Program Yifeng Wang (SNL) Michael Simpson (INL) Scott Painter (LANL) Hui-Hai Liu (LBNL) Annie B. Kersting (LLNL) July 15, 2011 FCRD-USED-2011-000223 UFD Natural System Evaluation - FY11 Year-End Report July 15, 2011 2 DISCLAIMER This information was prepared as an account of work sponsored by an agency of the U.S. Government. Neither the U.S. Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness, of any information, apparatus, product, or process disclosed, or represents that its use would not infringe

Note: This page contains sample records for the topic "number natural abundance" 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.


241

Star formation and the interstellar medium in low surface brightness galaxies. I. Oxygen abundances and abundance gradients in low surface brightness disk galaxies  

E-Print Network (OSTI)

We present measurements of the oxygen abundances in 64 HII regions in 12 LSB galaxies. We find that oxygen abundances are low. No regions with solar abundance have been found, and most have oxygen abundances $\\sim 0.5$ to 0.1 solar. The oxygen abundance appears to be constant as a function of radius, supporting the picture of quiescently and sporadically evolving LSB galaxies.

W. J. G. de Blok; J. M. van der Hulst

1998-03-27T23:59:59.000Z

242

DOE/ID-Number  

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

of primary energy resources in the forms of coal, natural gas, wind, uranium, and oil shale. Most of Wyoming's coal and gas resources are exported from the state in their...

243

DOE/ID-Number  

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

of synthetic fuels from natural gas, cogeneration of electricity and steam, and oil shale and oil sand processing varies from 750 to 950C. Additional study is required to...

244

Marketing Mother Nature’s Molecules  

Science Journals Connector (OSTI)

Marketing Mother Nature’s Molecules ... Yet molecules made by Mother Nature, or derivatives thereof, still account for nearly half of the drugs on the market. ...

LISA JARVIS

2012-02-19T23:59:59.000Z

245

Food abundance does not determine bird use of early-successional habitat.  

SciTech Connect

Abstract. Few attempts have been made to experimentally address the extent to which temporal or spatial variation in food availability influences avian habitat use. We used an experimental approach to investigate whether bird use differed between treated (arthropods reduced through insecticide application) and control (untreated) forest canopy gaps within a bottomland hardwood forest in the Upper Coastal Plain of South Carolina, USA. Gaps were two- to three-year-old group selection timber harvest openings of three sizes (0.13, 0.26, and 0.50 ha). Our study was conducted during four bird use periods (spring migration, breeding, post-breeding, and fall migration) in 2002 and 2003. Arthropods were reduced in treated gaps by 68% in 2002 and 73% in 2003. We used mist-netting captures and foraging attack rates to assess the influence of arthropod abundance on avian habitat use. Evidence that birds responded to arthropod abundance was limited and inconsistent. In 2002, we generally captured more birds in treated gaps of the smallest size (0.13 ha) and fewer birds in treated gaps of the larger sizes. In 2003, we recorded few differences in the number of captures in treated and control gaps. Foraging attack rates generally were lower in treated than in control gaps, indicating that birds were able to adapt to the reduced food availability and remain in treated gaps. We conclude that arthropod abundance was not a proximate factor controlling whether forest birds used our gaps. The abundance of food resources may not be as important in determining avian habitat selection as previous research has indicated, at least for passerines in temperate subtropical regions.

Champlin, Tracey B.; Kilgo, John C.; Moorman, Christopher E.

2009-06-01T23:59:59.000Z

246

U.S. Natural Gas Number of Residential Consumers (Number of Elements...  

Annual Energy Outlook 2012 (EIA)

55,263,673 56,186,958 57,321,746 58,223,229 2000's 59,252,728 60,286,364 61,107,254 61,871,450 62,496,134 63,616,827 64,166,280 64,964,769 65,073,996 65,329,582 2010's 65,542,345...

247

Natural Gas | Department of Energy  

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

March 25, 2013 March 25, 2013 Image of how methane hydrates can form in arctic and marine environments. | Illustration by the Energy Department. Data from Alaska Test Could Help Advance Methane Hydrate R&D Methane Hydrates present an enormous energy resource. The Energy Department is working to advance technologies and reap the possible benefits for a more secure energy future. March 22, 2013 ARPA-E Announces $40 Million for Research Projects to Develop Cleaner and Cheaper Transportation Choices for Consumers Two New ARPA-E Programs Will Engage Nation's Brightest Scientists, Engineers and Entrepreneurs in Research Competition to Improve Vehicle Manufacturing Techniques and Natural Gas Conversion January 10, 2013 Today shale gas accounts for about 25 percent of our natural gas production. And experts believe this abundant supply will mean lower energy costs for millions of families; fewer greenhouse gas emissions; and more American jobs. | Photo courtesy of the EIA.

248

Cosmological Deuterium Abundance and the Baryon Density of the Universe  

E-Print Network (OSTI)

Standard big bang nucleosynthesis (BBNS) promises accurate predictions of the primordial abundances of deuterium, helium-3, helium-4 and lithium-7 as a function of a single parameter. Previous measurements have nearly always been interpreted as confirmation of the model (Copi, Schramm & Turner 1995). Here we present a measurement of the deuterium to hydrogen ratio (D/H) in a newly discovered high redshift metal-poor gas cloud at redshift $z=2.504$. This confirms our earlier measurement of D/H (Tytler, Fan & Burles 1996), and together they give the first accurate measurement of the primordial D abundance, and a ten fold improvement in the accuracy of the cosmological density of ordinary matter.This is a high density, with most ordinary matter unaccounted or dark, which is too high to agree with measurements of the primordial abundances of helium-4 and lithium-7. Since the D/H measurement is apparently simple, direct, accurate and highly sensitive, we propose that helium requires a systematic correction, and that population II stars have less than the primordial abundance of $^7$Li. Alternatively, there is no concordance between the light element abundances, and the simple model of the big bang must be incomplete and lacking physics, or wrong.

Scott Burles; David Tytler

1996-03-19T23:59:59.000Z

249

Chemical abundances of stars with brown-dwarf companions  

E-Print Network (OSTI)

It is well-known that stars with giant planets are on average more metal-rich than stars without giant planets, whereas stars with detected low-mass planets do not need to be metal-rich. With the aim of studying the weak boundary that separates giant planets and brown dwarfs (BDs) and their formation mechanism, we analyze the spectra of a sample of stars with already confirmed BD companions both by radial velocity and astrometry. We employ standard and automatic tools to perform an EW-based analysis and to derive chemical abundances from CORALIE spectra of stars with BD companions. We compare these abundances with those of stars without detected planets and with low-mass and giant-mass planets. We find that stars with BDs do not have metallicities and chemical abundances similar to those of giant-planet hosts but they resemble the composition of stars with low-mass planets. The distribution of mean abundances of $\\alpha$-elements and iron peak elements of stars with BDs exhibit a peak at about solar abundance...

Sánchez, D Mata; Israelian, G; Santos, N C; Sahlmann, J; Udry, S

2014-01-01T23:59:59.000Z

250

Oxygen abundance in the Sloan Digital Sky Survey  

E-Print Network (OSTI)

We present two samples of $\\hii$ galaxies from the Sloan Digital Sky Survey (SDSS) spectroscopic observations data release 3. The electron temperatures($T_e$) of 225 galaxies are calculated with the photoionized $\\hii$ model and $T_e$ of 3997 galaxies are calculated with an empirical method. The oxygen abundances from the $T_e$ methods of the two samples are determined reliably. The oxygen abundances from a strong line metallicity indicator, such as $R_{23}$, $P$, $N2$, and $O3N2$, are also calculated. We compared oxygen abundances of $\\hii$ galaxies obtained with the $T_e$ method, $R_{23}$ method, $P$ method, $N2$ method, and $O3N2$method. The oxygen abundances derived with the $T_e$ method are systematically lower by $\\sim$0.2 dex than those derived with the $R_{23}$ method, consistent with previous studies based on $\\hii$ region samples. No clear offset for oxygen abundance was found between $T_e$ metallicity and $P$, $N2$ and $O3N2$ metallicity. When we studied the relation between N/O and O/H, we found that in the metallicity regime of $\\zoh > 7.95$, the large scatter of the relation can be explained by the contribution of small mass stars to the production of nitrogen. In the high metallicity regime, $\\zoh > 8.2$, nitrogen is primarily a secondary element produced by stars of all masses.

F. Shi; X. Kong; F. Z. Cheng

2006-03-10T23:59:59.000Z

251

E-Print Network 3.0 - abundant n-region additions Sample Search...  

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

with very uneven abundances. On each fish species, the most abundant ... Source: Poulin, Robert - Department of Zoology, University of Otago Collection: Biology and Medicine...

252

E-Print Network 3.0 - abundance Sample Search Results  

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

with very uneven abundances. On each fish species, the most abundant ... Source: Poulin, Robert - Department of Zoology, University of Otago Collection: Biology and Medicine...

253

More on the solar oxygen abundance Hans-Gunter Ludwig1  

E-Print Network (OSTI)

abundance is "high" or "low", we derived the oxygen solar abundance using 1D as well as 3D CO5BOLD solar

254

E-Print Network 3.0 - abundance ratio measurements Sample Search...  

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

1997. Figure 2 shows the helium to proton abundance ra- tio as a function... the largest solar cycle helium to proton abundance ... Source: Richardson, John - Kavli Institute for...

255

E-Print Network 3.0 - affects species abundances Sample Search...  

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

Density Dependence Shapes Species Abundances in a Tropical Tree Community Liza S. Comita,1... a species' relative abundance, but empirical tests are ... Source: Reich, Peter...

256

Spatial Mapping of Protein Abundances in the Mouse Brain by Voxelation...  

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

Mapping of Protein Abundances in the Mouse Brain by Voxelation Integrated with High-Throughput Liquid Chromatography Spatial Mapping of Protein Abundances in the Mouse Brain by...

257

E-Print Network 3.0 - abundance element Sample Search Results  

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

160, 291- Summary: may have low abundances of high field strength elements, rare earth elements and Y. Variable vein... in subduction zones. However, abundance variations of...

258

E-Print Network 3.0 - abundant culturable bacteria Sample Search...  

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

Sample search results for: abundant culturable bacteria Page: << < 1 2 3 4 5 > >> 1 ria and Virus Like Particles (VLPs) abundance were monitored in enriched seawater batch...

259

Glycomic alterations in the highly-abundant and lesser-abundant blood serum protein fractions for patients diagnosed with hepatocellular carcinoma  

Science Journals Connector (OSTI)

Hepatocellular cancer (HCC) is a serious human disease with an unfortunately low survival rate. It further poses a significant epidemic threat to our society through its viral vectors associated with cirrhosis conditions preceding the cancer. A search for biomarkers of these diseases enlists analytical glycobiology, in general, and quantitative biomolecular mass spectrometry (MS), in particular, as valuable approaches to cancer research. The recent advances in quantitative glycan permethylation prior to MALDI-MS oligosaccharide profiling has enabled us to compare the glycan quantitative proportions in the small serum samples of cancer and cirrhotic patients against control individuals. In this investigation, reasoning that some of the observed glycomic changes could be at least partly explained by acute-phase or immune responses, we further fractionated the major serum proteins from the minor components and compared statistically their differential glycosylation, elucidating some causes of quantitatively unusual glycosylation events. Numerous glycan structures were identified and tentatively connected with their originating proteins, with a particular emphasis on sialylated and fucosylated glycans. In particular, for the highly-abundant protein fraction, several smaller, neutral glycans were observed to be different between disease-free individuals and those diagnosed with either HCC or cirrhosis. Further, these types of glycans were also different between the two diseases. In the lesser-abundant protein fraction, a number of sialylated glycans were different between each state-of-health.

Pilsoo Kang; Milan Madera; William R. Alley Jr.; Radoslav Goldman; Yehia Mechref; Milos V. Novotny

2011-01-01T23:59:59.000Z

260

The chemical abundances of the Ap star HD94660  

SciTech Connect

In this work I present the determination of chemical abundances of the Ap star HD94660, a possible rapid oscillating star. As all the magnetic chemically peculiar objects, it presents CNO underabundance and overabundance of iron peak elements of ?100 times and of rare earths up to 4 dex with respect to the Sun. The determination was based on the conversion of the observed equivalent widths into abundances simultaneously to the determination of effective temperature and gravity. Since the Balmer lines of early type stars are very sensitive to the surface gravity while the flux distribution is sensitive to the effective temperature, I have adopted an iterative procedure to match the H{sub ?} line profile and the observed UV-Vis-NIR magnitudes of HD94660 looking for a consistency between the metallicity of the atmosphere model and the derived abundances. From my spectroscopic analysis, this star belongs to the no-rapid oscillating class.

Giarrusso, M. [Università di Catania, Dipartimento di Fisica e Astronomia, Sezione Astrofisica, Via S. Sofia 78, 95123 Catania (Italy); INAF - Osservatorio Astrofisico di Catania, via S. Sofia 78, 95123 Catania (Italy); INFN - Laboratori Nazionali del Sud (Italy)

2014-05-09T23:59:59.000Z

Note: This page contains sample records for the topic "number natural abundance" 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.


261

The abundance of AsH3 in Jupiter  

SciTech Connect

Both ground-based and airborne observations of the AsH3 Q-branch at 2126/cm, in conjunction with newly-analyzed laboratory comparison spectra at AsH3, are employed in the derivation of a new estimate of Jovian As abundance. The mole fraction on AsH3 in the Jovian atmosphere is 0.22 + or - 0.11 ppb; this is merely 0.5 times the solar abundance, and a factor-of-9 less than the mole fraction found in Saturn, duplicating the pattern noted in the relative abundance of P in these two planets and furnishing a useful constraint for models of heavy element incorporation in the outer planets' gaseous envelopes. 20 refs.

Noll, K.S.; Larson, H.P.; Geballe, T.R. (Arizona Univ., Tucson (USA) Joint Astronomy Centre, Hilo, HI (USA))

1990-02-01T23:59:59.000Z

262

Light bosons and photospheric solutions to the solar abundance problem  

E-Print Network (OSTI)

It is well known that current spectroscopic determinations of the chemical composition of the Sun are starkly at odds with the metallicity implied by helioseismology. We investigate whether the discrepancy may be due to conversion of photons to a new light boson in the solar photosphere. We examine the impact of particles with axion-like interactions with the photon on the inferred photospheric abundances, showing that resonant axion-photon conversion is not possible in the region of the solar atmosphere in which line-formation occurs. Although non-resonant conversion in the line-forming regions can in principle impact derived abundances, constraints from axion-photon conversion experiments rule out the couplings necessary for these effects to be detectable. We show that this extends to hidden photons and chameleons (which would exhibit similar phenomenological behaviour), ruling out known theories of new light bosons as photospheric solutions to the solar abundance problem.

Aaron C. Vincent; Pat Scott; Regner Trampedach

2012-06-19T23:59:59.000Z

263

What Is The Neon Abundance Of The Sun?  

E-Print Network (OSTI)

We have evolved a series of thirteen complete solar models that utilize different assumed heavy element compositions. Models that are based upon the heavy element abundances recently determined by Asplund, Grevesse, and Sauval (2005) are inconsistent with helioseismological measurements. However, models in which the neon abundance is increased by 0.4-0.5 dex to log N(Ne) = 8.29 +- 0.05 (on the scale in which log N(H) = 12) are consistent with the helioseismological measurements even though the other heavy element abundances are in agreement with the determinations of Asplund et al. (2005). These results sharpen and strengthen an earlier study by Antia and Basu (2005). The predicted solar neutrino fluxes are affected by the uncertainties in the composition by less than their 1sigma theoretical uncertainties.

John N. Bahcall; Sarbani Basu; Aldo M. Serenelli

2005-05-16T23:59:59.000Z

264

Demonstration of Natural Gas Engine Driven Air Compressor Technology at Department of Defense Industrial Facilities  

E-Print Network (OSTI)

are offset by differences in prevailing utility rates, efficiencies of partial load operation, reductions in peak demand, heat recovery, and avoiding the cost of back-up generators. Natural gas, a clean-burning fuel, is abundant and readily available...

Lin, M.; Aylor, S. W.; Van Ormer, H.

265

Energy Department Projects Focus on Sustainable Natural Gas Development |  

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

Projects Focus on Sustainable Natural Gas Projects Focus on Sustainable Natural Gas Development Energy Department Projects Focus on Sustainable Natural Gas Development January 10, 2013 - 1:00pm Addthis Today shale gas accounts for about 25 percent of our natural gas production. And experts believe this abundant supply will mean lower energy costs for millions of families; fewer greenhouse gas emissions; and more American jobs. | Photo courtesy of the EIA. Today shale gas accounts for about 25 percent of our natural gas production. And experts believe this abundant supply will mean lower energy costs for millions of families; fewer greenhouse gas emissions; and more American jobs. | Photo courtesy of the EIA. Gayland Barksdale Technical Writer, Office of Fossil Energy What is RPSEA? The Research Partnership to Secure Energy for America - or RPSEA -

266

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

2, 2010 at 2:00 P.M. 2, 2010 at 2:00 P.M. Next Release: Thursday, August 19, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, August 11, 2010) Summer heat and increased demand this week were insufficient to sustain the natural gas price level, as prices at trading locations across the lower 48 States posted decreases. Overall, spot price at most locations in the lower 48 States fell between 30 and 45 cents per million Btu (MMBtu), although a number of locations posted price decreases of as much as 52 cents per MMBtu. The Henry Hub spot price ended the report week yesterday, August 11, 39 cents lower than the preceding week, at $4.38 per MMBtu. At the New York Mercantile Exchange (NYMEX), the futures contract

267

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

5, 2010 at 2:00 P.M. 5, 2010 at 2:00 P.M. Next Release: Thursday, April 22, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, April 14, 2010) While natural gas spot prices inched lower at a number of market locations, prices at the majority of points in the lower 48 States increased since last Wednesday, April 7. Overall, spot prices in the lower 48 States varied between a 3-percent increase and a 3-percent decrease on the week. The Henry Hub spot price ended the report week yesterday, April 14, 7 cents higher than the preceding week, at $4.15 per million Btu (MMBtu). At the New York Mercantile Exchange (NYMEX), the futures contract for May delivery at the Henry Hub ended trading yesterday at $4.199 per

268

Harvard Medical School AbundanceFound Global Health  

E-Print Network (OSTI)

of post residency work primarily centered in global health delivery will receive 40% of the total awardHarvard Medical School AbundanceFound Global Health Loan Forgiveness Program for Graduating who have an intention of pursuing careers in global health delivery. This program is designed

Lahav, Galit

269

On the Abundance of Holmium in the Sun  

E-Print Network (OSTI)

The abundance of holmium (Z = 67) in the Sun remains uncertain. The photospheric abundance, based on lines of Ho II, has been reported as +0.26 +/- 0.16 (on the usual scale where log(H) = 12.00), while the meteoretic value is +0.51 +/- 0.02. Cowan code calculations have been undertaken to improve the partition function for this ion by including important contributions from unobserved levels arising from the (4f^{11}6p + 4f^{10}(5d + 6s)^{2}) group. Based on 6994 computed energy levels, the partition function for Ho II is 67.41 for a temperature of 6000 K. This is approximately 1.5 times larger than the value derived from the 49 published levels. The new partition function alone leads to an increase in the solar abundance of Ho to log(Ho) = +0.43. This is within 0.08 dex of the meteoretic abundance. Support for this result has been obtained through LTE spectrum synthesis calculations of a previously unidentified weak line at 3416.38 A in the solar spectrum. Attributing the feature to Ho II, the observations may be fitted with log(Ho) = +0.53. This calculation assumes log(gf) = 0.25 and is uncertain by at least 0.1 dex.

Donald J. Bord; Charles R. Cowley

2002-07-26T23:59:59.000Z

270

Estimates of cetacean abundance, biomass, and population density are  

E-Print Network (OSTI)

; Carretta et al., 2005), and fish- eries catch many of the same species that cetaceans consume (Trites et al be affected by anthropogenic sound (e.g., sonar, ship noise, and seismic surveys) and cli- mate change by the Scientific Editor. Fish. Bull. 105:509­526 (2007). Abstract--The abundance and popu- lation density

271

SOLAR SYSTEM ABUNDANCES AND CONDENSATION TEMPERATURES OF THE ELEMENTS Katharina Lodders  

E-Print Network (OSTI)

determinations for all elements are summarized and the best currently available photospheric abundances are selected. The meteoritic and solar abundances of a few elements (e.g., noble gases, beryllium, boron elemental and isotopic abundances are derived from photospheric abundances by considering settling effects

Fegley Jr., Bruce

272

NEW RADIAL ABUNDANCE GRADIENTS FOR NGC 628 AND NGC 2403  

SciTech Connect

Motivated by recent interstellar medium studies, we present high quality MMT and Gemini spectroscopic observations of H II regions in the nearby spiral galaxies NGC 628 and NGC 2403 in order to measure their chemical abundance gradients. Using long-slit and multi-object mask optical spectroscopy, we obtained measurements of the temperature sensitive auroral lines [O III] ?4363 and/or [N II] ?5755 at a strength of 4? or greater in 11 H II regions in NGC 628 and 7 regions in NGC 2403. These observations allow us, for the first time, to derive an oxygen abundance gradient in NGC 628 based solely on 'direct' oxygen abundances of H II regions: 12 + log(O/H) = (8.43 ± 0.03) + (–0.017 ± 0.002) × R{sub g} (dex kpc{sup –1}), with a dispersion in log(O/H) of ? = 0.10 dex, from 14 regions with a radial coverage of ?2-19 kpc. This is a significantly shallower slope than found by previous 'strong-line' abundance studies. In NGC 2403, we derive an oxygen abundance gradient of 12 + log(O/H) = (8.48 ± 0.04) + (–0.032 ± 0.007)× R{sub g} (dex kpc{sup –1}), with a dispersion in log(O/H) of ? = 0.07 dex, from seven H II with a radial coverage of ?1-10 kpc. Additionally, we measure the N, S, Ne, and Ar abundances. We find the N/O ratio decreases with increasing radius for the inner disk, but reaches a plateau past R{sub 25} in NGC 628. NGC 2403 also has a negative N/O gradient with radius, but we do not sample the outer disk of the galaxy past R{sub 25} and so do not see evidence for a plateau. This bi-modal pattern measured for NGC 628 indicates dominant contributions from secondary nitrogen inside of the R{sub 25} transition and dominantly primary nitrogen farther out. As expected for ?-process elements, S/O, Ne/O, and Ar/O are consistent with constant values over a range in oxygen abundance.

Berg, Danielle A.; Skillman, Evan D. [Department of Astronomy, University of Minnesota, 116 Church St. SE, Minneapolis, MN 55455 (United States); Croxall, Kevin V. [Ohio State University, 140 West 18th Avenue, Columbus, OH 43210 (United States); Marble, Andrew R. [National Solar Observatory, 950 N Cherry Avenue, Tucson, AZ 85719 (United States); Smith, J. D. [Ritter Astrophysical Observatory, University of Toledo, Toledo, OH 43606 (United States); Gordon, Karl [Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Kennicutt, Robert C. Jr. [Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom); Garnett, Donald R., E-mail: berg@astro.umn.edu, E-mail: skillman@astro.umn.edu, E-mail: croxall.5@osu.edu, E-mail: amarble@nso.edu, E-mail: jd.smith@utoledo.edu, E-mail: kgordon@stsci.edu, E-mail: robk@ast.cam.ac.uk

2013-10-01T23:59:59.000Z

273

Number | Open Energy Information  

Open Energy Info (EERE)

Number Number Jump to: navigation, search Properties of type "Number" Showing 200 properties using this type. (previous 200) (next 200) A Property:AvgAnnlGrossOpCpcty Property:AvgTempGeoFluidIntoPlant Property:AvgWellDepth B Property:Building/FloorAreaChurchesChapels Property:Building/FloorAreaGroceryShops Property:Building/FloorAreaHealthServices24hr Property:Building/FloorAreaHealthServicesDaytime Property:Building/FloorAreaHeatedGarages Property:Building/FloorAreaHotels Property:Building/FloorAreaMiscellaneous Property:Building/FloorAreaOffices Property:Building/FloorAreaOtherRetail Property:Building/FloorAreaResidential Property:Building/FloorAreaRestaurants Property:Building/FloorAreaSchoolsChildDayCare Property:Building/FloorAreaShops Property:Building/FloorAreaSportCenters

274

ALARA notes, Number 8  

SciTech Connect

This document contains information dealing with the lessons learned from the experience of nuclear plants. In this issue the authors tried to avoid the `tyranny` of numbers and concentrated on the main lessons learned. Topics include: filtration devices for air pollution abatement, crack repair and inspection, and remote handling equipment.

Khan, T.A.; Baum, J.W.; Beckman, M.C. [eds.] [eds.

1993-10-01T23:59:59.000Z

275

CHROMOSOME NUMBERS IN MAMMALS  

Science Journals Connector (OSTI)

...variables for which the double inte-gral does not exist: R. L. JEFFERY. On the number of elements in a group which have a power in...society will meet at Columbia University, MA ay 2, 1925. W. BENJAMIN FITE Acting Secretary 424 SCIENCE

Theophilus S. Painter

1925-04-17T23:59:59.000Z

276

Baryon Number Violation  

E-Print Network (OSTI)

This report, prepared for the Community Planning Study - Snowmass 2013 - summarizes the theoretical motivations and the experimental efforts to search for baryon number violation, focussing on nucleon decay and neutron-antineutron oscillations. Present and future nucleon decay search experiments using large underground detectors, as well as planned neutron-antineutron oscillation search experiments with free neutron beams are highlighted.

K. S. Babu; E. Kearns; U. Al-Binni; S. Banerjee; D. V. Baxter; Z. Berezhiani; M. Bergevin; S. Bhattacharya; S. Brice; R. Brock; T. W. Burgess; L. Castellanos; S. Chattopadhyay; M-C. Chen; E. Church; C. E. Coppola; D. F. Cowen; R. Cowsik; J. A. Crabtree; H. Davoudiasl; R. Dermisek; A. Dolgov; B. Dutta; G. Dvali; P. Ferguson; P. Fileviez Perez; T. Gabriel; A. Gal; F. Gallmeier; K. S. Ganezer; I. Gogoladze; E. S. Golubeva; V. B. Graves; G. Greene; T. Handler; B. Hartfiel; A. Hawari; L. Heilbronn; J. Hill; D. Jaffe; C. Johnson; C. K. Jung; Y. Kamyshkov; B. Kerbikov; B. Z. Kopeliovich; V. B. Kopeliovich; W. Korsch; T. Lachenmaier; P. Langacker; C-Y. Liu; W. J. Marciano; M. Mocko; R. N. Mohapatra; N. Mokhov; G. Muhrer; P. Mumm; P. Nath; Y. Obayashi; L. Okun; J. C. Pati; R. W. Pattie Jr.; D. G. Phillips II; C. Quigg; J. L. Raaf; S. Raby; E. Ramberg; A. Ray; A. Roy; A. Ruggles; U. Sarkar; A. Saunders; A. Serebrov; Q. Shafi; H. Shimizu; M. Shiozawa; R. Shrock; A. K. Sikdar; W. M. Snow; A. Soha; S. Spanier; G. C. Stavenga; S. Striganov; R. Svoboda; Z. Tang; Z. Tavartkiladze; L. Townsend; S. Tulin; A. Vainshtein; R. Van Kooten; C. E. M. Wagner; Z. Wang; B. Wehring; R. J. Wilson; M. Wise; M. Yokoyama; A. R. Young

2013-11-21T23:59:59.000Z

277

CHEMICAL SAFETY Emergency Numbers  

E-Print Network (OSTI)

- 1 - CHEMICAL SAFETY MANUAL 2010 #12;- 2 - Emergency Numbers UNBC Prince George Campus Security Prince George Campus Chemstores 6472 Chemical Safety 6472 Radiation Safety 5530 Biological Safety 5530 Risk and Safety Manager 5535 Security 7058 #12;- 3 - FOREWORD This reference manual outlines the safe

Bolch, Tobias

278

Planning Amid Abundance: Alaska’s FY 2013 Budget Process  

E-Print Network (OSTI)

heavy oil, natural gas and shale oil. Fiscal stability wasshale formations could contain two billion barrels of oil and

McBeath, Jerry

2013-01-01T23:59:59.000Z

279

1074 volume 27 number 12 december 2009 nature biotechnology Improving on nature  

E-Print Network (OSTI)

large volumes of cellulosic ethanol will be used in the coming decade and beyond, its long-term,"saysVerdezyneCSOStephen Picataggio. Cellulosic ethanol, produced from plant waste and other nonfood sources, offers a more attractive, such as butanol and alkanes, which can be handled in the existing fuel storage and distribution infrastructure6

Cai, Long

280

NATURAL SELECTION IN KINETIC EVOLUTION  

Science Journals Connector (OSTI)

...last two numbers of SCIENCE have appeared articles by Drs. Wheeler and Chapman on the abuses of nature writing as exemplified...imprint of Rand, IeNally and Co., 1903, and its author is Katherine E. Dopp, of the Extension Division of the Chicago University...

O. F. COOK

1904-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "number natural abundance" 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.


281

Obama Administration Announces New Partnership on Unconventional Natural  

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

Obama Administration Announces New Partnership on Unconventional Obama Administration Announces New Partnership on Unconventional Natural Gas and Oil Research Obama Administration Announces New Partnership on Unconventional Natural Gas and Oil Research April 13, 2012 - 3:01pm Addthis WASHINGTON, DC - Today, three federal agencies announced a formal partnership to coordinate and align all research associated with development of our nation's abundant unconventional natural gas and oil resources. The partnership exemplifies the cross-government coordination required under President Obama's Executive Order released earlier today, which created a new Interagency Working Group to Support Safe and Responsible Development of Unconventional Domestic Natural Gas Resources. This new partnership will help coordinate current and future

282

Obama Administration Announces New Partnership on Unconventional Natural  

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

Obama Administration Announces New Partnership on Unconventional Obama Administration Announces New Partnership on Unconventional Natural Gas and Oil Research Obama Administration Announces New Partnership on Unconventional Natural Gas and Oil Research April 13, 2012 - 1:00pm Addthis Washington, DC - Today, three federal agencies announced a formal partnership to coordinate and align all research associated with development of our nation's abundant unconventional natural gas and oil resources. The partnership exemplifies the cross-government coordination required under President Obama's Executive Order released earlier today, which created a new Interagency Working Group to Support Safe and Responsible Development of Unconventional Domestic Natural Gas Resources. This new partnership will help coordinate current and future

283

Obama Administration Announces New Partnership on Unconventional Natural  

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

Obama Administration Announces New Partnership on Unconventional Obama Administration Announces New Partnership on Unconventional Natural Gas and Oil Research Obama Administration Announces New Partnership on Unconventional Natural Gas and Oil Research April 13, 2012 - 1:00pm Addthis Washington, DC - Today, three federal agencies announced a formal partnership to coordinate and align all research associated with development of our nation's abundant unconventional natural gas and oil resources. The partnership exemplifies the cross-government coordination required under President Obama's Executive Order released earlier today, which created a new Interagency Working Group to Support Safe and Responsible Development of Unconventional Domestic Natural Gas Resources. This new partnership will help coordinate current and future

284

ELECTRICAL DISTRICT NUMBER EIGHT  

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

ELECTRICAL DISTRICT NUMBER EIGHT ELECTRICAL DISTRICT NUMBER EIGHT Board of Directors Reply to: Ronald Rayner C. W. Adams James D. Downing, P.E. Chairman Billy Hickman 66768 Hwy 60 Brian Turner Marvin John P.O. Box 99 Vice-Chairman Jason Pierce Salome, AZ 85348 Denton Ross Jerry Rovey Secretary James N. Warkomski ED8@HARCUVARCO.COM John Utz Gary Wood PHONE:(928) 859-3647 Treasurer FAX: (928) 859-3145 Sent via e-mail Mr. Darrick Moe, Regional Manager Western Area Power Administration Desert Southwest Region P. O. Box 6457 Phoenix, AZ 85005-6457 moe@wapa.gov; dswpwrmrk@wapa.gov Re: ED5-Palo Verde Hub Project Dear Mr. Moe, In response to the request for comments issued at the October 6 Parker-Davis Project customer th meeting, and in conjunction with comments previously submitted by the Southwest Public Power

285

Preventive Action Number:  

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

8 Preventive Action Report Planning Worksheet 11_0414 1 of 3 8 Preventive Action Report Planning Worksheet 11_0414 1 of 3 EOTA - Business Form Document Title: Preventive Action Report Planning Worksheet Document Number: F-018 Rev 11_0414 Document Owner: Elizabeth Sousa Backup Owner: Melissa Otero Approver(s): Melissa Otero Parent Document: P-008, Corrective/Preventive Action Notify of Changes: EOTA Employees Referenced Document(s): N/A F-018 Preventive Action Report Planning Worksheet 11_0414 2 of 3 Revision History: Rev. Description of Change 08_0613 Initial Release 09_0924 Worksheet modified to reflect External Audit recommendation for identification of "Cause for Potential Nonconformance". Minor editing changes. 11_0414 Added Preventive Action Number block to match Q-Pulse

286

Preventive Action Number:  

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

7 Corrective Action Report Planning Worksheet 11_0414 1 of 3 7 Corrective Action Report Planning Worksheet 11_0414 1 of 3 EOTA - Business Form Document Title: Corrective Action Report Planning Worksheet Document Number: F-017 Rev 11_0414 Document Owner: Elizabeth Sousa Backup Owner: Melissa Otero Approver(s): Melissa Otero Parent Document: P-008, Corrective/Preventive Action Notify of Changes: EOTA Employees Referenced Document(s): N/A F-017 Corrective Action Report Planning Worksheet 11_0414 2 of 3 Revision History: Rev. Description of Change 08_0613 Initial Release 11_0414 Added problem statement to first block. F-017 Corrective Action Report Planning Worksheet 11_0414 3 of 3 Corrective Action Report Planning Worksheet Corrective Action Number: Source: Details/Problem Statement: Raised By: Raised Date: Target Date:

287

NREL: News Feature - Sustainable Solutions Abundant in New Offices  

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

Sustainable Solutions Abundant in New Offices Sustainable Solutions Abundant in New Offices May 24, 2010 Content on this page requires a newer version of Adobe Flash Player. Get Adobe Flash player. When it comes to designing an interior decorative feature for one of the most energy efficient office buildings in the world, very few would consider bringing in a beetle to do the job. But that's what happened at the U.S. Department of Energy's (DOE) Research Support Facility (RSF) located on the National Renewable Energy Laboratory (NREL) campus. In June, the RSF will become home to more than 800 workers from DOE and NREL and building visitors will be greeted with a soaring, two-story high wall entirely covered with wood harvested from the bark beetle infestation that has killed millions of pine trees in the Western U.S.

288

Light bosons and photospheric solutions to the solar abundance problem  

E-Print Network (OSTI)

It is well known that current spectroscopic determinations of the chemical composition of the Sun are starkly at odds with the metallicity implied by helioseismology. We propose that the discrepancy may be due to conversion of photons to a new light boson in the solar photosphere. We investigate the impact of particles with axion-like interactions with the photon on the inferred photospheric abundances. Conversion of photons into new light bosons can in principle easily produce the +0.2 dex change in derived abundances required to reconcile spectroscopic and helioseismological determinations of the solar metallicity. We show that this is however not possible for any of the presently-allowed parameter space of either the QCD axion or a standard axion-like particle. We speculate that other models involving photon-boson mixing, such as hidden photons, might prove more successful.

Vincent, Aaron C; Trampedach, Regner

2012-01-01T23:59:59.000Z

289

NATURAL GAS MARKET ASSESSMENT  

E-Print Network (OSTI)

CALIFORNIA ENERGY COMMISSION NATURAL GAS MARKET ASSESSMENT PRELIMINARY RESULTS In Support.................................................................................... 6 Chapter 2: Natural Gas Demand.................................................................................................. 10 Chapter 3: Natural Gas Supply

290

,"Missouri Natural Gas Summary"  

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

Gas Wells (MMcf)","Missouri Natural Gas Gross Withdrawals from Oil Wells (MMcf)","Missouri Natural Gas Gross Withdrawals from Shale Gas (Million Cubic Feet)","Missouri Natural...

291

Probing lepton number violation on three frontiers  

SciTech Connect

Neutrinoless double beta decay constitutes the main probe for lepton number violation at low energies, motivated by the expected Majorana nature of the light but massive neutrinos. On the other hand, the theoretical interpretation of the (non-)observation of this process is not straightforward as the Majorana neutrinos can destructively interfere in their contribution and many other New Physics mechanisms can additionally mediate the process. We here highlight the potential of combining neutrinoless double beta decay with searches for Tritium decay, cosmological observations and LHC physics to improve the quantitative insight into the neutrino properties and to unravel potential sources of lepton number violation.

Deppisch, Frank F. [Department of Physics and Astronomy, University College London (United Kingdom)

2013-12-30T23:59:59.000Z

292

Chapter 1 - Natural Gas Fundamentals  

Science Journals Connector (OSTI)

Natural gas is the most energy-efficient fossil fuel; it offers important energy-saving benefits when it is used instead of oil or coal. Although the primary use of natural gas is as a fuel, it is also a source of hydrocarbons for petrochemical feedstocks and a major source of elemental sulfur, an important industrial chemical. Its popularity as an energy source is expected to grow substantially in the future because natural gas can help achieve two important energy goals for the twenty-first century: providing the sustainable energy supplies and services needed for social and economic development and reducing adverse impacts on global climate and the environment in general. Natural gas consumption and trade have been growing steadily over the past two decades, and natural gas has strengthened its position in the world energy mix. Although natural gas demand declined in 2009, as a result of the economic slowdown, it is expected to resume growth in both emerging and traditional markets in the coming decades. Such increase in the near future will be driven because of additional demand in current uses, primarily power generation. There is yet little overlap between the use of natural gas and oil in all large markets. However, there are certain moves in the horizon, including the electrifying of transportation, that will push natural gas use to ever higher levels. This book gives the reader an introduction to natural gas by describing the origin and composition of natural gas, gas sources, phase behavior and properties, and transportation methods. Keywords: Absolute Open Flow, bulk modulus of elasticity, coal-bed methane, cricondenbar, cricondentherm, Expected Ultimate Recovery, gas deviation factor, higher heating value, Inflow Performance Relationship, kerogen, laminar flow, liquefied natural gas, primary thermogenic gas, pyrobitumen, secondary thermogenic gas, super-compressibility factor, thiol, Tubing Performance Curve, turbulent flow, unconventional gas resources, Wobbe Index, Wobbe Number.

Saeid Mokhatab; William A. Poe

2012-01-01T23:59:59.000Z

293

Solar Abundance of Elements from Neutron-Capture Cross Sections  

E-Print Network (OSTI)

Excess lightweight products of slow neutron capture in the photosphere, over the mass range of 25 to 207 amu, confirm the solar mass separation recorded by excess lightweight isotopes in the solar wind, over the mass range of 3 to 136 amu [Solar Abundance of the Elements, Meteoritics, volume 18, 1983, pages 209 to 222]. Both measurements show that major elements inside the Sun are Fe, O, Ni, Si and S, like those in rocky planets.

O. Manuel; W. A. Myers; Y. Singh; M. Pleess

2004-12-19T23:59:59.000Z

294

THE RAVE CATALOG OF STELLAR ELEMENTAL ABUNDANCES: FIRST DATA RELEASE  

SciTech Connect

We present chemical elemental abundances for 36,561 stars observed by the RAdial Velocity Experiment (RAVE), an ambitious spectroscopic survey of our Galaxy at Galactic latitudes |b| > 25 Degree-Sign and with magnitudes in the range 9 abundances for the elements Mg, Al, Si, Ca, Ti, Fe, and Ni, with a mean error of {approx}0.2 dex, as judged from accuracy tests performed on synthetic and real spectra. Abundances are estimated through a dedicated processing pipeline in which the curve of growth of individual lines is obtained from a library of absorption line equivalent widths to construct a model spectrum that is then matched to the observed spectrum via a {chi}{sup 2} minimization technique. We plan to extend this pipeline to include estimates for other elements, such as oxygen and sulfur, in future data releases.

Boeche, C.; Williams, M.; De Jong, R. S.; Steinmetz, M. [Leibniz-Institut fuer Astrophysik Potsdam (AIP), D-14482 Potsdam (Germany); Siebert, A.; Bienayme, O. [Observatoire Astronomique de Strasbourg, Universite de Strasbourg, CNRS, UMR 7550, F-67000 Strasbourg (France); Fulbright, J. P.; Ruchti, G. R. [Department of Physics and Astronomy, Johns Hopkins University, Baltimore, MD 21218 (United States); Bland-Hawthorn, J. [Sydney Institute for Astronomy, School of Physics A28, University of Sydney, NSW 2006 (Australia); Campbell, R. [Department of Physics and Astronomy, Western Kentucky University, Bowling Green, KY (United States); Freeman, K. C. [Research School of Astronomy and Astrophysics, Australia National University, Weston Creek, Canberra ACT 2611 (Australia); Gibson, B. K. [Jeremiah Horrocks Institute, University of Central Lancashire, Preston PR1 2HE (United Kingdom); Gilmore, G. [Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom); Grebel, E. K. [Astronomisches Rechen-Institut, Zentrum fuer Astronomie der Universitaet Heidelberg, D-69120 Heidelberg (Germany); Helmi, A. [Kapteyn Astronomical Institute, University of Groningen, 9700 AV Groningen (Netherlands); Munari, U. [INAF Osservatorio Astronomico di Padova, Asiago I-36012 (Italy); Navarro, J. F. [Department of Physics and Astronomy, University of Victoria, Victoria BC V8W 3P6 (Canada); Parker, Q. A.; Reid, W. [Department of Physics and Astronomy, Faculty of Sciences, Macquarie University, Sydney, NSW 2109 (Australia); Seabroke, G. M. [Mullard Space Science Laboratory, University College London, Holmbury, St. Mary RH5 6NT (United Kingdom); and others

2011-12-15T23:59:59.000Z

295

Cosmic rays, lithium abundance and excess entropy in galaxy clusters  

E-Print Network (OSTI)

We consider the production of $^6$Li in spallation reactions by cosmic rays in order to explain the observed abundance in halo metal-poor stars. We show that heating of ambient gas by cosmic rays is an inevitable consequence of this process, and estimate the energy input required to reproduce the observed abundance of $^6$Li/H$\\sim 10^{-11}$ to be of order a few hundred eV per particle. We draw attention to the possibility that this could explain the excess entropy in gas in galaxy groups and clusters. The evolution of $^6$Li and the accompanying heating of gas is calculated for structures collapsing at the present epoch with injection of cosmic rays at high redshift. We determine the energy required to explain the abundance of $^6$Li at $z \\sim 2$ corresponding to the formation epoch of halo metal-poor stars, and also an increased entropy level of $\\sim 300$ keV cm$^2$ necessary to explain X-ray observations of clusters. The energy budget for this process is consistent with the expected energy output of radio-loud AGNs, and the diffusion length scale of cosmic-ray protons responsible for heating is comparable to the size of regions with excess entropy. We also discuss the constraints imposed by the extragalactic gamma-ray background.

Biman B. Nath; Piero Madau; Joseph Silk

2005-11-21T23:59:59.000Z

296

Cosmic rays, lithium abundance and excess entropy in galaxy clusters  

E-Print Network (OSTI)

We consider the production of $^6$Li in spallation reactions by cosmic rays in order to explain the observed abundance in halo metal-poor stars. We show that heating of ambient gas by cosmic rays is an inevitable consequence of this process, and estimate the energy input required to reproduce the observed abundance of $^6$Li/H$\\sim 10^{-11}$ to be of order a few hundred eV per particle. We draw attention to the possibility that this could explain the excess entropy in gas in galaxy groups and clusters. The evolution of $^6$Li and the accompanying heating of gas is calculated for structures collapsing at the present epoch with injection of cosmic rays at high redshift. We determine the energy required to explain the abundance of $^6$Li at $z \\sim 2$ corresponding to the formation epoch of halo metal-poor stars, and also an increased entropy level of $\\sim 300$ keV cm$^2$ necessary to explain X-ray observations of clusters. The energy budget for this process is consistent with the expected energy output of radi...

Nath, B B; Silk, J; Nath, Biman B.; Madau, Piero; Silk, Joseph

2006-01-01T23:59:59.000Z

297

Oxygen abundance methods in the SDSS: view from modern statistics  

E-Print Network (OSTI)

Our purpose is to find which is the most reliable one among various oxygen abundance determination methods. We will test the validity of several different oxygen abundance determination methods using methods of modern statistics. These methods include Bayesian analysis and information scoring. We will analyze a sample of $\\sim$6000 $\\hii$ galaxies from the Sloan Digital Sky Survey (SDSS) spectroscopic observations data release four. All methods that we used drew the same conclusion that the $T_e$ method is a more reliable oxygen abundance determination methods than the Bayesian metallcity method under the existing telescope ability. The ratios of the likelihoods between the different kinds of methods tell us that the $T_e$, $P$, and $O3N2$ methods are consistent with each other because the $P$ and $O3N2$ method are calibrated by $T_e$-method. The Bayesian and $R_{23}$ method are consistent with each other because both are calibrated by a galaxy model. In either case, the $N2$ method is an {\\it unreliable} method.

F. Shi; G. Zhao; James Wicker

2007-10-24T23:59:59.000Z

298

NAME: STUDENT NUMBER (PID): CITY, STATE ZIP: DAYTIME PHONE NUMBER  

E-Print Network (OSTI)

NAME: STUDENT NUMBER (PID): ADDRESS: CITY, STATE ZIP: DAYTIME PHONE NUMBER: CELL PHONE NUMBER of financial institution. 14 Cell Phone Expenses 15 Other ordinary and necessary living expenses. 16 TOTAL (add

299

Natural Solutions | Open Energy Information  

Open Energy Info (EERE)

Natural Solutions Natural Solutions Jump to: navigation, search Logo: Natural Solutions Name Natural Solutions Address 3715 Briarwood Dr. Place Cedar Falls, Iowa Zip 50613 Sector Solar Product solar and wind systems Phone number 319-277-7842 Website http://www.naturalsolutions-sk Coordinates 42.5048475°, -92.434048° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.5048475,"lon":-92.434048,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

300

DOE/ID-Number  

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

Integrated Tool Development Integrated Tool Development for Used Fuel Disposition Natural System Evaluation - Phase I Report Prepared for U.S. Department of Energy Used Fuel Disposition Yifeng Wang & Teklu Hadgu Sandia National Laboratories Scott Painter, Dylan R. Harp & Shaoping Chu Los Alamos National Laboratory Thomas Wolery Lawrence Livermore National Laboratory Jim Houseworth Lawrence Berkeley National Laboratory September 28, 2012 FCRD-UFD-2012-000229 SAND2012-7073P DISCLAIMER This information was prepared as an account of work sponsored by an agency of the U.S. Government. Neither the U.S. Government nor any agency thereof, nor any of their employees, makes any warranty, expressed or implied, or assumes any legal liability or responsibility for the accuracy,

Note: This page contains sample records for the topic "number natural abundance" 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.


301

Title Project Number  

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

Research Research 2011 Yearly Review Meeting Project DE-FE0002128 Analysis of microbial activity under a supercritical CO 2 atmosphere Massachusetts Institute of Technology Prof. Janelle Thompson, Department of Civil and Environmental Engineering February 24-26, 2011 Project Participants * Dr. Janelle Thompson, PhD, Assistant Professor, Civil and Environmental Engineering (MIT) * Dr. Hector Hernandez, PhD, Martin Luther King Postdoctoral Fellow (MIT) * Mr. Kyle Peet, doctoral student, Civil and Environmental Engineering, MIT * 2 undergraduates Janelle Hector Kyle 3 Why do microbes matter? CO 2 "trapping" mechanisms -biofilm barriers -mineralization Natural and Engineered Systems Mitchell et al, 2009 dawsonite Biofilm Barriers Biological catalysis of mineral trapping Can we recover life forms that grow in supercritical CO

302

NREL Explores Earth-Abundant Materials for Future Solar Cells (Fact Sheet), Innovation: The Spectrum of Clean Energy Innovation, NREL (National Renewable Energy Laboratory)  

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

Explores Earth-Abundant Explores Earth-Abundant Materials for Future Solar Cells Researchers at the National Renewable Energy Laboratory (NREL) are using a theory-driven technique-sequential cation mutation-to understand the nature and limitations of promising solar cell materials that can replace today's technologies. Finding new materials that use Earth-abundant elements and are easily manufactured is important for large-scale solar electricity deployment. The goal of the U.S. Department of Energy SunShot Initiative is to reduce the installed cost of solar energy systems by about 75% by the end of the decade. Obtaining that goal calls for photovoltaic (PV) technologies to improve in three main areas: solar-cell efficiencies, material processing costs, and scalability to the terawatt (TW), or 10

303

EIA - Natural Gas Pipeline System - Western Region  

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

Western Region Western Region About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 2007/2008 with selected updates Natural Gas Pipelines in the Western Region Overview | Transportation South | Transportation North | Regional Pipeline Companies & Links Overview Ten interstate and nine intrastate natural gas pipeline companies provide transportation services to and within the Western Region (Arizona, California, Idaho, Nevada, Oregon, and Washington), the fewest number serving any region (see Table below). Slightly more than half the capacity entering the region is on natural gas pipeline systems that carry natural gas from the Rocky Mountain area and the Permian and San Juan basins. These latter systems enter the region at the New Mexico-Arizona and Nevada-Utah State lines. The rest of the capacity arrives on natural gas pipelines that access Canadian natural gas at the Idaho and Washington State border crossings with British Columbia, Canada.

304

Market Digest: Natural Gas  

Reports and Publications (EIA)

The Energy Information Administration's Natural Gas Market Digest provides information and analyses on all aspects of natural gas markets.

2014-01-01T23:59:59.000Z

305

The Neon Abundance in the Ejecta of QU Vul From Late-Epoch IR Spectra  

E-Print Network (OSTI)

We present ground-based SpectroCam-10 mid-infrared, MMT optical, and Spitzer Space Telescope IRS mid-infrared spectra taken 7.62, 18.75, and 19.38 years respectively after the outburst of the old classical nova QU Vulpeculae (Nova Vul 1984 #2). The spectra of the ejecta are dominated by forbidden line emission from neon and oxygen. Our analysis shows that neon was, at the first and last epochs respectively, more than 76 and 168 times overabundant by number with respect to hydrogen compared to the solar value. These high lower limits to the neon abundance confirm that QU Vul involved a thermonuclear runaway on an ONeMg white dwarf and approach the yields predicted by models of the nucleosynthesis in such events.

Robert D. Gehrz; Charles E. Woodward; L. Andrew Helton; Elisha F. Polomski; Thomas L. Hayward; James R. Houck; A. Evans; Joachim Krautter; Steven N. Shore; Sumner Starrfield; James Truran; G. J. Schwarz; R. Mark Wagner

2007-09-17T23:59:59.000Z

306

Construction Project Number  

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

North Execution - (2009 - 2011) North Execution - (2009 - 2011) Construction Project Number 2009 2010 2011 Project Description ANMLPL 0001C 76,675.32 - - Animas-Laplata circuit breaker and power rights CRGRFL 0001C - - 7,177.09 Craig Rifle Bay and transfer bay upgrade to 2000 amps; / Convert CRG RFL to 345 kV out of Bears Ear Sub FGE 0019C - - 39,207.86 Replace 69/25kV transformer KX2A at Flaming Gorge FGE 0020C - - 52,097.12 Flaming Gorge: Replace failed KW2A transformer HDN 0069C 16,638.52 208,893.46 3,704,578.33 Replace failed transformer with KZ1A 250 MVA 230/138kv

307

KPA Activity Number  

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

supports CMM-SW Level 2 supports CMM-SW Level 2 Mapping of the DOE Systems Engineering Methodology to the Software Engineering Institute (SEI) Software Capability Maturity Model (CMM- SW) level 2. Date: September 2002 Page 1 KPA Activity Number KPA Activity SEM Section SME Work Product SQSE Web Site http://cio.doe.gov/sqse REQUIREMENTS MANAGEMENT RM-1 The software engineering group reviews the allocated requirements before they are incorporated in the software project. Chapter 3.0 * Develop High-Level Project Requirements Chapter 4.0 * Establish Functional Baseline * Project Plan * Requirements Specification Document * Requirements Management awareness * Defining Project Requirements RM-2 The software engineering group uses the allocated requirements as the basis for

308

DIRECT OXYGEN ABUNDANCES FOR LOW-LUMINOSITY LVL GALAXIES  

SciTech Connect

We present MMT spectroscopic observations of H II regions in 42 low luminosity galaxies in the Spitzer Local Volume Legacy survey. For 31 of the 42 galaxies in our sample, we were able to measure the temperature sensitive [O III] {lambda}4363 line at a strength of 4{sigma} or greater, and thus determine oxygen abundances using the 'direct' method. Our results provide the first 'direct' estimates of oxygen abundance for 19 of these galaxies. 'Direct' oxygen abundances were compared to B-band luminosities, 4.5 {mu}m luminosities, and stellar masses in order to characterize the luminosity-metallicity and mass-metallicity relationships at low luminosity. We present and analyze a 'Combined Select' sample composed of 38 objects (drawn from a sub-set of our parent sample and the literature) with 'direct' oxygen abundances and reliable distance determinations (based on the tip of the red giant branch or Cepheid variables). Consistent with previous studies, the B band and 4.5 {mu}m luminosity-metallicity relationships for the 38 objects were found to be 12 + log(O/H) = (6.27 {+-} 0.21) + (- 0.11 {+-} 0.01)M{sub B} and 12 + log(O/H) = (6.10 {+-} 0.21) + (- 0.10 {+-} 0.01)M{sub [4.5]} with dispersions of {sigma} = 0.15 and 0.14, respectively. The slopes of the optical and near-IR L-Z relationships have been reported to be different for galaxies with luminosities greater than that of the LMC. However, the similarity of the slopes of the optical and near-IR L-Z relationships for our sample probably reflects little influence by dust extinction in the low luminosity galaxies. For this sample, we derive a mass-metallicity relationship of 12 + log(O/H) = (5.61 {+-} 0.24) + (0.29 {+-} 0.03)log (M{sub *}), which agrees with previous studies; however, the dispersion ({sigma} = 0.15) is not significantly lower than that of the L-Z relationships. Because of the low dispersions in these relationships, if an accurate distance is available, the luminosity of a low luminosity galaxy is often a better indicator of metallicity than that derived using certain 'strong-line' methods, so significant departures from the L-Z relationships may indicate that caution is prudent in such cases. With these new 'direct' metallicities we also revisit the 70/160 {mu}m color metallicity relationship. Additionally, we examine N/O abundance trends with respect to oxygen abundance and B - V color. We find a positive correlation between N/O ratio and B - V color for 0.05 {approx}< B - V {approx}< 0.75: log (N/O) = (1.18 {+-} 0.9) Multiplication-Sign (B - V) + (- 1.92 {+-} 0.08), with a dispersion of {sigma} = 0.14, which is in agreement with previous studies.

Berg, Danielle A.; Skillman, Evan D. [Institute for Astrophysics, University of Minnesota, 116 Church St. SE, Minneapolis, MN 55455 (United States); Marble, Andrew R.; Engelbracht, Charles W. [Steward Observatory, University of Arizona, 933 N Cherry Ave., Tucson, AZ 85721 (United States); Van Zee, Liese [Astronomy Department, Indiana University, 727 East 3rd Street, Bloomington, IN 47405 (United States); Lee, Janice C. [STScI, 3700 San Martin Drive, Baltimore, MD 21218 (United States); Kennicutt, Robert C. Jr. [Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA (United Kingdom); Calzetti, Daniela [Department of Astronomy, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003 (United States); Dale, Daniel A. [Department of Physics and Astronomy, University of Wyoming, 1000 E. University, Laramie, WY 82071 (United States); Johnson, Benjamin D., E-mail: berg@astro.umn.edu, E-mail: skillman@astro.umn.edu, E-mail: cengelbracht@as.arizona.edu, E-mail: amarble@nso.edu, E-mail: vanzee@astro.indiana.edu, E-mail: jlee@stsci.edu, E-mail: calzetti@astro.umass.edu, E-mail: ddale@uwyo.edu, E-mail: johnson@iap.fr [Institut d'Astrophysique de Paris, UMR 7095, 98 bis Bvd Arago, 75014 Paris (France)

2012-08-01T23:59:59.000Z

309

Global climatology of abundance and solar absorption of oxygen collision complexes  

E-Print Network (OSTI)

the atmosphere by ZENDER: CLIMATOLOGY OF O2-X ABUNDANCE ANDOCTOBER 27, 1999 Global climatology of abundance and solarWe create a global climatology of well—mixed collision

Zender, Charles S.

1999-01-01T23:59:59.000Z

310

ABUNDANCE ANALYSIS OF HE 21481247, A STAR WITH EXTREMELY ENHANCED NEUTRON CAPTURE ELEMENTS1  

E-Print Network (OSTI)

and reach the solar abundance, while Pb significantly exceeds it, thus demonstrating the addition to near the solar abundance but not substantially above it. The yield of Pb relative to Ba appears to vary

Faraon, Andrei

311

Region-Specific Protein Abundance Changes in the Brain of MPTP...  

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

Region-Specific Protein Abundance Changes in the Brain of MPTP-induced Parkinson’s Disease Mouse Model . Region-Specific Protein Abundance Changes in the Brain of...

312

Chemical kinetics of cetane number improving agents  

SciTech Connect

The increasing demand for diesel fuels has resulted in the use of greater percentage of cracked distillates having poor ignition properties. The ignition properties of diesel fuels can be rated in terms of their cetane number and diesel fuels having low cetane number may have poor ignition properties such as diesel knock, difficulties to start engines in the cold weather and so on. Such diesel fuels need cetane number improving agents. In the 1940s and 1950s alkyl nitrates, alkyl nitrites and organic peroxides were found to be effective cetane number improving additives. Our recent study suggests that free radicals produced from thermal decomposition just before ignition should have an important role to improve their ignition properties. However no studies on the reaction mechanism for improving effect of these additives have been attempted because of complex nature of spontaneous ignition reaction of hydrocarbons. In order to clarify the reaction mechanism for improving effects of cetane number improving agents. We here have attempted to simulate the spontaneous ignition of n-butane as a model compound in the presence of alkyl nitrites as cetane number improving agents.

Hashimoto, K.; Akutsu, Y.; Arai, M.; Tamura, M. [Univ. of Tokyo (Japan)

1996-12-31T23:59:59.000Z

313

Chemical Abundances in High-Redshift Neutral Clouds  

E-Print Network (OSTI)

Neutral hydrogen clouds with high column density detected towards distant quasars are unique probes of elemental nucleosynthesis and chemical evolution in the low metallicity regime. They provide measurements for several elements at very early times which are unfeasible in other astrophysical environments. Comparison between refractory and non-refractory elements provides evidence for the presence of dust, and the recently measured Ar probes photoionization. A prominent characteristic is the dominance of a solar abundance pattern, which is somewhat unexpected at low metallicities. It is argued that this property and Nitrogen observations can be used to constrain the age of the Damped Ly_alpha systems and the epoch of star formation.

Paolo Molaro

2001-11-30T23:59:59.000Z

314

Pre-Main Sequence Evolutions of Solar Abundance Lowmass Stars  

E-Print Network (OSTI)

We present the Pre-Main-Sequence (PMS) evolutionary tracks of stars with 0.0065~5.0Ms. The models were evolved from the PMS stellar birthline to the onset of hydrogen burning in the core. The convective turnover timescales which enables an observational test of theoretical model, particulary in the stellar dynamic activity, are also calculated. All models have Sun-like metal abundances, typically considered as the stars in the Galactic disk and the star formation region of Population I star. The convection phenomenon is treated by the usual mixing length approximation. All evolutionary tracks are available upon request.

Youn Kil Jung; Yong-Cheol Kim

2007-02-12T23:59:59.000Z

315

Cosmic ray abundance measurements with the CAKE balloon experiment  

E-Print Network (OSTI)

We present the results from the CAKE (Cosmic Abundance below Knee Energy) balloon experiment which uses nuclear track detectors. The final experiment goal is the determination of the charge spectrum of CR nuclei with Z > 30 in the primary cosmic radiation. The detector, which has a geometric acceptance of \\~ 1.7 m2 sr, was exposed in a trans-mediterranean stratospheric balloon flight. Calibrations of the detectors used (CR39 and Lexan), scanning strategies and algorithms for tracking particles in an automatic mode are presented. The present status of the results is discussed

S. Cecchini; T. Chiarusi; G. Giacomelli; S. Manzoor; E. Medinaceli; L. Patrizii; V. Togo

2005-10-25T23:59:59.000Z

316

Arizona - Natural Gas 2012 Million  

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

4 4 Arizona - Natural Gas 2012 Million Cu. Feet Percent of National Total Million Cu. Feet Percent of National Total Total Net Movements: - Industrial: Dry Production: Vehicle Fuel: Deliveries to Consumers: Residential: Electric Power: Commercial: Total Delivered: Table S3. Summary statistics for natural gas - Arizona, 2008-2012 2008 2009 2010 2011 2012 Number of Producing Gas Wells at End of Year 6 6 5 5 5 Production (million cubic feet) Gross Withdrawals From Gas Wells 523 711 183 168 117 From Oil Wells * * 0 0 0 From Coalbed Wells 0 0 0 0 0 From Shale Gas Wells 0

317

OXYGEN GAS-PHASE ABUNDANCE REVISITED M. K. Andre,1,2  

E-Print Network (OSTI)

OXYGEN GAS-PHASE ABUNDANCE REVISITED M. K. Andre´,1,2 C. M. Oliveira,2 J. C. Howk,2 R. Ferlet,1 J gas-phase oxygen abundance along the sight lines toward 19 early-type Galactic stars at an average mag�1 with a standard deviation of 15% is consistent with previous surveys. The mean oxygen abundance

Howk, Jay Christopher

318

Natural and Multi-Natural Inflation in Axion Landscape  

E-Print Network (OSTI)

We propose a landscape of many axions, where the axion potential receives various contributions from shift symmetry breaking effects. We show that the existence of the axion with a super-Planckian decay constant is very common in the axion landscape for a wide range of numbers of axions and shift symmetry breaking terms, because of the accidental alignment of axions. The effective inflation model is either natural or multi-natural inflation in the axion landscape, depending on the number of axions and the shift symmetry breaking terms. The tension between BICEP2 and Planck could be due to small modulations to the inflaton potential or steepening of the potential along the heavy axions after the tunneling. The total duration of the slow-roll inflation our universe experienced is not significantly larger than $60$ if the typical height of the axion potentials is of order $(10^{16-17}{\\rm \\,GeV})^4$.

Tetsutaro Higaki; Fuminobu Takahashi

2014-07-16T23:59:59.000Z

319

Hot star wind models with new solar abundances  

E-Print Network (OSTI)

We compare the hot star wind models calculated assuming older solar abundance determination with models calculated using the recently published values derived from 3D hydrodynamical model atmospheres. We show that the use of new abundances with lower metallicity improves the agreement between wind observation and theory in several aspects: (1) The predicted wind mass-loss rates are lower by a factor of 0.76. This leads to a better agreement with mass-loss rate determinations derived from observations with account of clumping. (2) As a result of the lowering of mass-loss rates, there is a better agreement between predicted modified wind momentum-luminosity relationship and that derived from observations with account of clumping. (3) Both the lower mass fraction of heavier elements and lower mass-loss rates lead to a decrease of the opacity in the X-ray region. This has influence on the prediction of the X-ray line profile shapes. (4) There is a better agreement between predicted PV ionization fractions and those derived from observations.

Jiri Krticka; Jiri Kubat

2007-01-15T23:59:59.000Z

320

The element abundance FIP effect in the quiet Sun  

E-Print Network (OSTI)

The Mg/Ne abundance ratio in the quiet Sun is measured in both network and supergranule cell centre regions through EUV spectra from the Coronal Diagnostic Spectrometer on SOHO. Twenty four sets of data over the period 1996 March to 1998 June (corresponding to solar minimum) are studied. Emission lines of the sequences Ne IV-VII and Mg V-VIII are simultaneously analysed by comparing with theoretical emissivities from the CHIANTI database to yield the Mg/Ne abundance and emission measure over the temperature region 5.0 Sun connects into the solar wind. The quiet Sun spectra are also utilised to determine the coronal density and temperature, leading to average values of 2.6^+0.5_-0.4 x 10^8 cm^-3 and log (T/K)=5.95 +/- 0.02. No significant trend with the rise in solar activity during 1996--98 is found for any of the derived quantities, implying that quiet Sun regions show little dependence on the solar cycle.

P. R. Young

2005-03-02T23:59:59.000Z

Note: This page contains sample records for the topic "number natural abundance" 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.


321

On neutron numbers and atomic masses  

Science Journals Connector (OSTI)

On neutron numbers and atomic masses ... Assigning neutron numbers, correct neutron numbers, and atomic masses and nucleon numbers. ...

R. Heyrovská

1992-01-01T23:59:59.000Z

322

Natural Power | Open Energy Information  

Open Energy Info (EERE)

Power Power Place Castle Douglas, Scotland, United Kingdom Zip DG7 3XS Sector Services, Wind energy Product Specialists including project managers, ecologists, GIS and mapping experts, construction managers, wind farm designers, geotechnical engineers and land agents who deliver technical and management services. Number of employees 201-500 Phone number +1 (518) 308-0200 Website http://www.naturalpower.com/ References Natural Power[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Natural Power is a company located in Castle Douglas, Scotland, United Kingdom, Saratoga Springs, NY, and other locations worldwide. References Cite error: tags exist, but no tag was found

323

Optimizing the stroke of Purcell's rotator, a low Reynolds number swimmer  

E-Print Network (OSTI)

Purcell's rotator is a theoretical low Reynolds number swimmer that can act as a model of more complex natural microorganisms, such as E.coli. Because of the low Reynolds number environment, the swimmer has approximately ...

Hammett, Victoria N. (Victoria Nicole)

2012-01-01T23:59:59.000Z

324

Abundances and Spectra for Cosmic-Ray Nuclei from Li to Fe For 2 to 150 GeV/n  

E-Print Network (OSTI)

and have ratios to solar abundances as a function of firstthus and have ratios to solar abundances as a function ofuncertainty in its solar abundance (Casse et al. 1975). A

Orth, Chalres D.; Ruffington, Andrew; Smoot, George F.; Mast, Terry S.

1978-01-01T23:59:59.000Z

325

Abundance determinations in HII regions: model fitting versus Te-method  

E-Print Network (OSTI)

The discrepancy between the oxygen abundances in high-metallicity HII regions determined through the Te-method (and/or through the corresponding "strong lines - oxygen abundance" calibration) and that determined through the model fitting (and/or through the corresponding "strong lines - oxygen abundance" calibration) is discussed. It is suggested to use the interstellar oxygen abundance in the solar vicinity, derived with very high precision from the high-resolution observations of the weak interstellar absorption lines towards the stars, as a "Rosetta stone" to verify the validity of the oxygen abundances derived in HII regions with the Te-method at high abundances. The agreement between the value of the oxygen abundance at the solar galactocentric distance traced by the abundances derived in HII regions through the Te-method and that derived from the interstellar absorption lines towards the stars is strong evidence in favor of that i) the two-zone model for Te seems to be a realistic interpretation of the temperature structure within HII regions, and ii) the classic Te-method provides accurate oxygen abundances in HII regions. It has been concluded that the "strong lines - oxygen abundance" calibrations must be based on the HII regions with the oxygen abundances derived with the Te-method but not on the existing grids of the models for HII regions.

L. S. Pilyugin

2002-11-14T23:59:59.000Z

326

Natural Gas Hydrates  

Science Journals Connector (OSTI)

Natural Gas Hydrates ... Formation Characteristics of Synthesized Natural Gas Hydrates in Meso- and Macroporous Silica Gels ... Formation Characteristics of Synthesized Natural Gas Hydrates in Meso- and Macroporous Silica Gels ...

Willard I. Wilcox; D. B. Carson; D. L. Katz

1941-01-01T23:59:59.000Z

327

An MCMC determination of the primordial helium abundance  

SciTech Connect

Spectroscopic observations of the chemical abundances in metal-poor H II regions provide an independent method for estimating the primordial helium abundance. H II regions are described by several physical parameters such as electron density, electron temperature, and reddening, in addition to y, the ratio of helium to hydrogen. It had been customary to estimate or determine self-consistently these parameters to calculate y. Frequentist analyses of the parameter space have been shown to be successful in these parameter determinations, and Markov Chain Monte Carlo (MCMC) techniques have proven to be very efficient in sampling this parameter space. Nevertheless, accurate determination of the primordial helium abundance from observations of H II regions is constrained by both systematic and statistical uncertainties. In an attempt to better reduce the latter, and continue to better characterize the former, we apply MCMC methods to the large dataset recently compiled by Izotov, Thuan, and Stasi?ska (2007). To improve the reliability of the determination, a high quality dataset is needed. In pursuit of this, a variety of cuts are explored. The efficacy of the He I ?4026 emission line as a constraint on the solutions is first examined, revealing the introduction of systematic bias through its absence. As a clear measure of the quality of the physical solution, a ?{sup 2} analysis proves instrumental in the selection of data compatible with the theoretical model. Nearly two-thirds of the observations fall outside a standard 95% confidence level cut, which highlights the care necessary in selecting systems and warrants further investigation into potential deficiencies of the model or data. In addition, the method also allows us to exclude systems for which parameter estimations are statistical outliers. As a result, the final selected dataset gains in reliability and exhibits improved consistency. Regression to zero metallicity yields Y{sub p} = 0.2534 ± 0.0083, in broad agreement with the WMAP result. The inclusion of more observations shows promise for further reducing the uncertainty, but more high quality spectra are required.

Aver, Erik; Olive, Keith A.; Skillman, Evan D., E-mail: aver@physics.umn.edu, E-mail: olive@umn.edu, E-mail: skillman@astro.umn.edu [School of Physics and Astronomy, University of Minnesota, 116 Church St. SE, Minneapolis, MN 55455 (United States)

2012-04-01T23:59:59.000Z

328

Historical Natural Gas Annual  

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

8 The Historical Natural Gas Annual contains historical information on supply and disposition of natural gas at the national, regional, and State level as well as prices at...

329

Historical Natural Gas Annual  

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

6 The Historical Natural Gas Annual contains historical information on supply and disposition of natural gas at the national, regional, and State level as well as prices at...

330

Historical Natural Gas Annual  

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

7 The Historical Natural Gas Annual contains historical information on supply and disposition of natural gas at the national, regional, and State level as well as prices at...

331

Natural Gas Rules (Louisiana)  

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

The Louisiana Department of Natural Resources administers the rules that govern natural gas exploration and extraction in the state. DNR works with the Louisiana Department of Environmental...

332

,"Missouri Natural Gas Summary"  

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

Gas Sold to Commercial Consumers (Dollars per Thousand Cubic Feet)","Missouri Natural Gas Industrial Price (Dollars per Thousand Cubic Feet)","Missouri Natural Gas Price Sold to...

333

Natural Gas Weekly Update  

Annual Energy Outlook 2012 (EIA)

natural gas production output. Rigs Natural Gas Transportation Update Tennessee Gas Pipeline Company yesterday (August 4) said it is mobilizing equipment and manpower for...

334

Remarks on Nondeterminism ffl Interesting Nondeterministic TM. A composite number is the  

E-Print Network (OSTI)

Remarks on Nondeterminism ffl Interesting Nondeterministic TM. A composite number is the product of two natural numbers which are greater than one. That is, a composite number is a non­prime other than 1 or 0. Let C denote the set of composite numbers, and set L = f\\Lambda n : n 2 Cg. If restricted

Bringsjord, Selmer

335

RE-EXAMINING HIGH ABUNDANCE SLOAN DIGITAL SKY SURVEY MASS-METALLICITY OUTLIERS: HIGH N/O, EVOLVED WOLF-RAYET GALAXIES?  

SciTech Connect

We present new MMT spectroscopic observations of four dwarf galaxies representative of a larger sample observed by the Sloan Digital Sky Survey and identified by Peeples et al. as low-mass, high oxygen abundance outliers from the mass-metallicity relation. Peeples showed that these four objects (with metallicity estimates of 8.5 {<=} 12 + log(O/H) {<=} 8.8) have oxygen abundance offsets of 0.4-0.6 dex from the M{sub B} luminosity-metallicity relation. Our new observations extend the wavelength coverage to include the [O II] {lambda}{lambda}3726, 3729 doublet, which adds leverage in oxygen abundance estimates and allows measurements of N/O ratios. All four spectra are low excitation, with relatively high N/O ratios (N/O {approx}> 0.10), each of which tend to bias estimates based on strong emission lines toward high oxygen abundances. These spectra all fall in a regime where the 'standard' strong-line methods for metallicity determinations are not well calibrated either empirically or by photoionization modeling. By comparing our spectra directly to photoionization models, we estimate oxygen abundances in the range of 7.9 {<=} 12 + log (O/H) {<=} 8.4, consistent with the scatter of the mass-metallicity relation. We discuss the physical nature of these galaxies that leads to their unusual spectra (and previous classification as outliers), finding their low excitation, elevated N/O, and strong Balmer absorption are consistent with the properties expected from galaxies evolving past the 'Wolf-Rayet galaxy' phase. We compare our results to the 'main' sample of Peeples and conclude that they are outliers primarily due to enrichment of nitrogen relative to oxygen and not due to unusually high oxygen abundances for their masses or luminosities.

Berg, Danielle A.; Skillman, Evan D. [Department of Astronomy, University of Minnesota, 116 Church Street SE, Minneapolis, MN 55455 (United States); Marble, Andrew R., E-mail: berg@astro.umn.edu, E-mail: skillman@astro.umn.edu, E-mail: amarble@nso.edu [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States)

2011-09-01T23:59:59.000Z

336

NATURE PHYSICS | VOL 9 | OCTOBER 2013 | www.nature.com/naturephysics 605 news & views  

E-Print Network (OSTI)

NATURE PHYSICS | VOL 9 | OCTOBER 2013 | www.nature.com/naturephysics 605 news & views R ight after -- will then form. In our example, will have to change from +1 to -1, necessarily passing through zero as quantum phase transitions. The dependence of the number of defects on the cooling rate is governed

Loss, Daniel

337

nature nanotechnology | VOL 5 | DECEMBER 2010 | www.nature.com/naturenanotechnology 825 correspondence  

E-Print Network (OSTI)

nature nanotechnology | VOL 5 | DECEMBER 2010 | www.nature.com/naturenanotechnology 825 purpose of publishing research papers in various areas of nanoscience and nanotechnology. Many­4 . This article will quantify the growth over time in the number of nanotechnology journals using three databases

Zhang, Minghua

338

Transcendental L2 -Betti numbers  

E-Print Network (OSTI)

Transcendental L2 -Betti numbers Atiyah's question Thomas Schick G¨ottingen OA Chennai 2010 Thomas Schick (G¨ottingen) Transcendental L2 -Betti numbers Atiyah's question OA Chennai 2010 1 / 24 #12 = ~M/) with fundamental domain F. L2-Betti numbers:= normalized dimension( space of L2-harmonic forms

Sunder, V S

339

Data Compression with Prime Numbers  

E-Print Network (OSTI)

A compression algorithm is presented that uses the set of prime numbers. Sequences of numbers are correlated with the prime numbers, and labeled with the integers. The algorithm can be iterated on data sets, generating factors of doubles on the compression.

Gordon Chalmers

2005-11-16T23:59:59.000Z

340

Aerial Surveys to Estimate Abundance of Wintering Waterfowl in Mississippi  

E-Print Network (OSTI)

Total ducks Application - Research · Energy conservation ­ Temperature ­ Wind · Food acquisition Stratified Sampling #12;3 Survey Implementation · Altitude 500 ft · Transect 250 m · Data collected ­ Number

Gray, Matthew

Note: This page contains sample records for the topic "number natural abundance" 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.


341

The Basics of Underground Natural Gas Storage  

Gasoline and Diesel Fuel Update (EIA)

The Basics of Underground Natural Gas Storage The Basics of Underground Natural Gas Storage Latest update: August 2004 Natural gas-a colorless, odorless, gaseous hydrocarbon-may be stored in a number of different ways. It is most commonly held in inventory underground under pressure in three types of facilities. These are: (1) depleted reservoirs in oil and/or gas fields, (2) aquifers, and (3) salt cavern formations. (Natural gas is also stored in liquid form in above-ground tanks. A discussion of liquefied natural gas (LNG) is beyond the scope of this report. For more information about LNG, please see the EIA report, The Global Liquefied Natural Gas Market: Status & Outlook.) Each storage type has its own physical characteristics (porosity, permeability, retention capability) and economics (site preparation and

342

EIA - Natural Gas Production Data & Analysis  

Gasoline and Diesel Fuel Update (EIA)

Production Production Gross Withdrawals and Production Components of natural gas production for the U.S., States and the Gulf of Mexico (monthly, annual). Number of Producing Gas Wells U.S. and State level data (annual). Wellhead Value & Marketed Production U.S. and State level natural gas wellhead values and prices of marketed production (annual). Offshore Gross Withdrawals U.S., State, and Gulf of Mexico gross withdrawals from oil and gas wells(annual). Gulf of Mexico Federal Offshore Production Production of crude oil, natural gas wet after lease separation, natural gas liquids, dry natural gas, and lease condensate (annual). Natural Gas Plant Liquids Production Production by U.S., region, and State (annual). Lease Condensate Production Production by U.S., region, and State (annual).

343

Research Highlights Nature Nanotechnology  

E-Print Network (OSTI)

© 2009 APS Research Highlights Nature Nanotechnology Published online: 17 July 2009 | doi:10 perfect fluid. Phys. Rev. Lett. 103, 025301 (2009). | Article |1. Nature Nanotechnology ISSN 1748 : Nature Nanotechnology http://www.nature.com/nnano/reshigh/2009/0709/full/nnano.2009.222.html 1 of 1 18

Müller, Markus

344

Liquid Natural Gas  

Science Journals Connector (OSTI)

Liquid Natural Gas ... IN A new technique for storing natural gas at the East Ohio Gas Co. plant, Cleveland, Ohio, the gas is liquefied before passing to the gas holders. ... Natural gas contains moisture and carbon dioxide, both of which liquefy before the natural gas and are somewhat of a nuisance because upon solidification they clog the pipes. ...

W. F. SCHAPHORST

1941-04-25T23:59:59.000Z

345

Impact of Natural Gas Infrastructure on Electric Power Systems  

E-Print Network (OSTI)

Impact of Natural Gas Infrastructure on Electric Power Systems MOHAMMAD SHAHIDEHPOUR, FELLOW, IEEE of electricity has introduced new risks associated with the security of natural gas infrastructure on a sig the essence of the natural gas infrastructure for sup- plying the ever-increasing number of gas-powered units

Fu, Yong

346

Light-Element Abundances of Giant Stars in the Globular Cluster M71 (NGC 6838)  

E-Print Network (OSTI)

Aluminum is the heaviest light element displaying large star--to--star variations in Galactic globular clusters (GCs). This element may provide additional insight into the origin of the multiple populations now known to be a common place in GCs, and also the nature of the first-generation stars responsible for a cluster's chemical inhomogeneities. In a previous analysis we found that, unlike more metal-poor GCs, 47 Tuc did not exhibit a strong Na-Al correlation, which motivates a careful study of the similar metallicity but less massive GC M71. We present chemical abundances of O, Na, Al, and Fe for 33 giants in M71 using spectra obtained with the WIYN-Hydra spectrograph. Our spectroscopic analysis finds that, similar to 47 Tuc and in contrast with more metal-poor GCs, M71 stars do not exhibit a strong Na-Al correlation and span a relatively narrow range in [Al/Fe], which are characteristics that GC formation models must reproduce.

Cordero, Maria J; Johnson, Christian I; Vesperini, Enrico

2015-01-01T23:59:59.000Z

347

Interlaboratory comparison of different analytical techniques for the determination of oxygen-18 abundance  

SciTech Connect

A series of six artificially enriched waters, containing between 2,500 and 6,500 ppm oxygen-18, was prepared by adding weighed portions of distilled water and highly enriched H{sub 2}{sup 18}O. These waters were analyzed by radio activation analysis (proton activation PAA) and by gas isotope ratio mass spectrometry (gIRMS) with CO{sub 2} as the analysis gas. Carbon dioxide was prepared from water samples either by using the guanidine reaction, with 3-, 5- and 10-{mu}L samples, or by isotopic equilibration, using small (10 {mu}L) and large (1.5 mL) samples. The large samples were diluted to the natural abundance range prior to analysis as were the 3-{mu}L guanidine samples. Precision was greatest with large sample CO{sub 2} equilibration (mean relative standard deviation (RSD) = 0.108%). The other gIRMS gas preparation techniques had lower precision (3 {mu}L guanidine, RSD = 0.529%, 5 {mu}L guanidine, RSD = 0.364%, 10 {mu}L guanidine, RSD = 0.48%; 10 {mu}L equilibration, RSD = 0.43%) and the lowest precision occurred with PAA (RSD = 0.58%). For all the techniques except small sample equilibration, accuracy (percent deviation of mean evaluation from expected gravimetric mean) was worse than precision (RSD).

Speakman, J.R.; Poppitt, S.D.; Racey, P.A. (Univ. of Aberdeen (Scotland)); Nagy, K.A.; Strathearn, G.E. (Univ. of California, Los Angeles (USA)); Masman, D.; Mook, W.G. (Rijksuniversiteit Groningen (Netherlands))

1990-04-01T23:59:59.000Z

348

The circulating hemocytes of the white shrimp, Penaeus setiferus: origin, abundance, morphology, and function  

E-Print Network (OSTI)

Approved as to style and content by: (Chairman of Committee) A. ~ (Head of Department) (Member) 4. ~6-&- (Member) May 1978 442840 ABSTBACT The Circulating Hemocytes of the Hhite Shrimp, Penacus setiferus: Origin, Abundance, Morphology.... EDGFuVENTS? LIST OF TABLES vii LIST OF FIGURES viii INTRODUCTION- RL'VIEN OF LITERATURE NATL'RIALS AND METHODS 01 igil'l Abundance Morphology? Function 13 13 14 15 18 RESULTS AND DISCUSSION 21 Origin 21 Abundance? 23 Morphology...

Fontaine, Clark Timothy

2012-06-07T23:59:59.000Z

349

Nuclear Coupling of 33S and the Nature of Free Radicals in Irradiated Crystals of Cystine Dihydrochloride: Part II, Charged Radicals  

Science Journals Connector (OSTI)

...radicals produced by ionizing radiation to be mostly charged molecules...equivalent positions. With the naturally occuring 33S abundance of 0.76% in...consequences in biochemical reactions and radiation effects. In consideration of...

Joseph H. Hadley; Jr.; Walter Gordy

1974-01-01T23:59:59.000Z

350

The Coronal Abundances of Mid-F Dwarfs  

E-Print Network (OSTI)

A Chandra spectrum of the moderately active nearby F6 V star Pi3 Ori is used to study the coronal properties of mid-F dwarfs. We find that Pi3 Ori's coronal emission measure distribution is very similar to those of moderately active G and K dwarfs, with an emission measure peak near $\\log T=6.6$ seeming to be ubiquitous for such stars. In contrast to coronal temperature, coronal abundances are known to depend on spectral type for main sequence stars. Based on this previously known relation, we expected Pi3 Ori's corona to exhibit an extremely strong "FIP effect," a phenomenon first identified on the Sun where elements with low "First Ionization Potential" (FIP) are enhanced in the corona. We instead find that Pi3 Ori's corona exhibits a FIP effect essentially identical to that of the Sun and other early G dwarfs, perhaps indicating that the increase in FIP bias towards earlier spectral types stops or at least slows for F stars. We find that Pi3 Ori's coronal characteristics are significantly different from tw...

Wood, Brian E

2013-01-01T23:59:59.000Z

351

LARGE ABUNDANCES OF POLYCYCLIC AROMATIC HYDROCARBONS IN TITAN'S UPPER ATMOSPHERE  

SciTech Connect

In this paper, we analyze the strong unidentified emission near 3.28 {mu}m in Titan's upper daytime atmosphere recently discovered by Dinelli et al. We have studied it by using the NASA Ames PAH IR Spectroscopic Database. The polycyclic aromatic hydrocarbons (PAHs), after absorbing UV solar radiation, are able to emit strongly near 3.3 {mu}m. By using current models for the redistribution of the absorbed UV energy, we have explained the observed spectral feature and have derived the vertical distribution of PAH abundances in Titan's upper atmosphere. PAHs have been found to be present in large concentrations, about (2-3) Multiplication-Sign 10{sup 4} particles cm{sup -3}. The identified PAHs have 9-96 carbons, with a concentration-weighted average of 34 carbons. The mean mass is {approx}430 u; the mean area is about 0.53 nm{sup 2}; they are formed by 10-11 rings on average, and about one-third of them contain nitrogen atoms. Recently, benzene together with light aromatic species as well as small concentrations of heavy positive and negative ions have been detected in Titan's upper atmosphere. We suggest that the large concentrations of PAHs found here are the neutral counterpart of those positive and negative ions, which hence supports the theory that the origin of Titan main haze layer is located in the upper atmosphere.

Lopez-Puertas, M.; Funke, B.; Garcia-Comas, M. [Instituto de Astrofisica de Andalucia (CSIC), E-18080 Granada (Spain); Dinelli, B. M. [ISAC-CNR, I-40129 Bologna (Italy); Adriani, A.; D'Aversa, E. [IAPS-INAF, I-00133 Rome (Italy); Moriconi, M. L. [ISAC-CNR, I-00133 Rome (Italy); Boersma, C.; Allamandola, L. J., E-mail: puertas@iaa.es [NASA Ames Research Center, Moffett Field, CA 94035-1000 (United States)

2013-06-20T23:59:59.000Z

352

E-Print Network 3.0 - abundance cancer related Sample Search...  

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

cancer related Search Powered by Explorit Topic List Advanced Search Sample search results for: abundance cancer related Page: << < 1 2 3 4 5 > >> 1 The Therapeutic Implications of...

353

E-Print Network 3.0 - abundance monitoring hydroacoustic Sample...  

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

for: abundance monitoring hydroacoustic Page: << < 1 2 3 4 5 > >> 1 Introduction Reef fish spawning aggregations have Summary: aggregation at Little Cayman Island, Cayman...

354

E-Print Network 3.0 - abundant nuclear copies Sample Search Results  

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

nuclear copies Search Powered by Explorit Topic List Advanced Search Sample search results for: abundant nuclear copies Page: << < 1 2 3 4 5 > >> 1 Nuclear membranes control...

355

E-Print Network 3.0 - abundance distribution results Sample Search...  

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

al. 2007... ). Species abundance distributions are widely used in ecology ... Source: Poulin, Robert - Department of Zoology, University of Otago Collection: Biology and Medicine...

356

E-Print Network 3.0 - abundance distribution composition Sample...  

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

al. 2007... ). Species abundance distributions are widely used in ecology ... Source: Poulin, Robert - Department of Zoology, University of Otago Collection: Biology and Medicine...

357

E-Print Network 3.0 - abundance range revealed Sample Search...  

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

(2006) Moving be- yond assumptions to understand abundance distributions ... Source: Poulin, Robert - Department of Zoology, University of Otago Collection: Biology and Medicine...

358

E-Print Network 3.0 - abundant dicer-dependent small Sample Search...  

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

unknown. In this study, we tested whether variation in abundance among ... Source: Poulin, Robert - Department of Zoology, University of Otago Collection: Biology and Medicine...

359

E-Print Network 3.0 - abundance discrepancy problem Sample Search...  

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

if we consider the frequency (Fi for species i) instead of abundance, to ... Source: Poulin, Robert - Department of Zoology, University of Otago Collection: Biology and Medicine...

360

E-Print Network 3.0 - alpha element abundances Sample Search...  

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

of the Coulomb drag. Inefficient Coulomb drag leads to a low helium abundance in the solar wind. Introduction Source: Richardson, John - Kavli Institute for Astrophysics and...

Note: This page contains sample records for the topic "number natural abundance" 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.


361

E-Print Network 3.0 - abundance acute-phase proteins Sample Search...  

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

various proteomes... segments that become The availability and abundance of intrinsically disordered proteins inside a cell... comparable, mRNAs encod- ing intrinsically disordered...

362

E-Print Network 3.0 - abundance chemical Sample Search Results  

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

of Nd, Sm, Zr... may have low abundances of high field strength elements, rare earth elements and Y. ... Source: Becker, Harry - Department of Geology, University of...

363

Number  

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

NATIONAL ENERGY POLICY NATIONAL ENERGY POLICY STATUS REPORT on Implementation of NEP Recommendations January, 2005 1 NEP RECOMMENDATIONS: STATUS OF IMPLEMENTATION Chapter 1 1. That the President issue an Executive Order to direct all federal agencies to include in any regulatory action that could significantly and adversely affect energy supplies, distribution, or use, a detailed statement of energy effects and alternatives in submissions to the Office of Management and Budget of proposed regulations covered and all notices of proposed regulations published in the Federal Register. STATUS: IMPLEMENTED. In May 2001, President Bush issued Executive Order 13211 requiring federal agencies to include, in any regulatory action that could significantly and

364

NUMBER:  

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

SWMU 161 C-743 Trainina Trailer Comolex- Soil Backfill UNIT NAME: . REGULATORY STATUS: AOC LOCATION: Southwest of C-743 building APPROXIMATE DIMENSIONS: 200 feet wide by 200 feet...

365

Compendium of Experimental Cetane Numbers  

SciTech Connect

This report is an updated version of the 2004 Compendium of Experimental Cetane Number Data and presents a compilation of measured cetane numbers for pure chemical compounds. It includes all available single compound cetane number data found in the scientific literature up until March 2014 as well as a number of unpublished values, most measured over the past decade at the National Renewable Energy Laboratory. This Compendium contains cetane values for 389 pure compounds, including 189 hydrocarbons and 201 oxygenates. More than 250 individual measurements are new to this version of the Compendium. For many compounds, numerous measurements are included, often collected by different researchers using different methods. Cetane number is a relative ranking of a fuel's autoignition characteristics for use in compression ignition engines; it is based on the amount of time between fuel injection and ignition, also known as ignition delay. The cetane number is typically measured either in a single-cylinder engine or a constant volume combustion chamber. Values in the previous Compendium derived from octane numbers have been removed, and replaced with a brief analysis of the correlation between cetane numbers and octane numbers. The discussion on the accuracy and precision of the most commonly used methods for measuring cetane has been expanded and the data has been annotated extensively to provide additional information that will help the reader judge the relative reliability of individual results.

Yanowitz, J.; Ratcliff, M. A.; McCormick, R. L.; Taylor, J. D.; Murphy, M. J.

2014-08-01T23:59:59.000Z

366

NATURAL GAS VARIABILITY IN CALIFORNIA: ENVIRONMENTAL IMPACTS AND DEVICE PERFORMANCE EXPERIMENTAL EVALUATION OF POLLUTANT EMISSIONS FROM RESIDENTIAL APPLIANCES  

E-Print Network (OSTI)

nitrogen oxides, nitrogen dioxide, and  the number of (liquefied natural gas, nitrogen  dioxide, nitrogen oxides, nitrogen oxides, nitrogen dioxide, particle  number,  and 

Singer, Brett C.

2010-01-01T23:59:59.000Z

367

Betti number signatures of homogeneous Poisson point processes  

E-Print Network (OSTI)

The Betti numbers are fundamental topological quantities that describe the k-dimensional connectivity of an object: B_0 is the number of connected components and B_k effectively counts the number of k-dimensional holes. Although they are appealing natural descriptors of shape, the higher-order Betti numbers are more difficult to compute than other measures and so have not previously been studied per se in the context of stochastic geometry or statistical physics. As a mathematically tractable model, we consider the expected Betti numbers per unit volume of Poisson-centred spheres with radius alpha. We present results from simulations and derive analytic expressions for the low intensity, small radius limits of Betti numbers in one, two, and three dimensions. The algorithms and analysis depend on alpha-shapes, a construction from computational geometry that deserves to be more widely known in the physics community.

Vanessa Robins

2006-09-22T23:59:59.000Z

368

Betti number signatures of homogeneous Poisson point processes  

Science Journals Connector (OSTI)

The Betti numbers are fundamental topological quantities that describe the k-dimensional connectivity of an object: ?0 is the number of connected components and ?k effectively counts the number of k-dimensional holes. Although they are appealing natural descriptors of shape, the higher-order Betti numbers are more difficult to compute than other measures and so have not previously been studied per se in the context of stochastic geometry or statistical physics. As a mathematically tractable model, we consider the expected Betti numbers per unit volume of Poisson-centered spheres with radius ?. We present results from simulations and derive analytic expressions for the low intensity, small radius limits of Betti numbers in one, two, and three dimensions. The algorithms and analysis depend on alpha shapes, a construction from computational geometry that deserves to be more widely known in the physics community.

Vanessa Robins

2006-12-11T23:59:59.000Z

369

Female offspring desertion and male-only care increase with natural and experimental increase in food abundance  

Science Journals Connector (OSTI)

...times the mean home range radius...cent of the average food consumption of Tengmalm's...cent of the energy requirements...stage was on average 0.58 (s...post-brooding period (average of all nest...reducing their own energy reserves available...

2009-01-01T23:59:59.000Z

370

A TWO MICRON ALL SKY SURVEY VIEW OF THE SAGITTARIUS DWARF GALAXY. VI. s-PROCESS AND TITANIUM ABUNDANCE VARIATIONS ALONG THE SAGITTARIUS STREAM  

SciTech Connect

We present high-resolution spectroscopic measurements of the abundances of the alpha element titanium (Ti) and s-process elements yttrium (Y) and lanthanum (La) for 59 candidate M giant members of the Sagittarius (Sgr) dwarf spheroidal (dSph) + tidal tail system pre-selected on the basis of position and radial velocity (RV). As expected, the majority of these stars show peculiar abundance patterns compared to those of nominal Milky Way (MW) stars, but as a group, the stars form a coherent picture of chemical enrichment of the Sgr dSph from [Fe/H] = -1.4 to solar abundance. This sample of spectra provides the largest number of Ti, La, and Y abundances yet measured for a dSph, and spans metallicities not typically probed by studies of the other, generally more metal-poor MW satellites. On the other hand, the overall [Ti/Fe], [Y/Fe], [La/Fe], and [La/Y] patterns with [Fe/H] of the Sgr stream plus Sgr core do, for the most part, resemble those seen in the Large Magellanic Cloud (LMC) and other dSphs, only shifted by DELTA[Fe/H] approx +0.4 from the LMC and by approx+1 dex from the other dSphs; these relative shifts reflect the faster and/or more efficient chemical evolution of Sgr compared to the other satellites, and show that Sgr has had an enrichment history more like the LMC than the other dSphs. By tracking the evolution of the abundance patterns along the Sgr stream we can follow the time variation of the chemical make-up of dSph stars donated to the Galactic halo by Sgr. This evolution demonstrates that while the bulk of the stars currently in the Sgr dSph is quite unlike those of the Galactic halo, an increasing number of stars farther along the Sgr stream have abundances like MW halo stars, a trend that shows clearly how the Galactic halo could have been contributed by present-day satellite galaxies even if the present chemistry of those satellites is now different from typical halo field stars. Finally, we analyze the chemical abundances of a moving group of M giants among the Sgr leading arm stars at the North Galactic Cap, but having RVs unlike the infalling Sgr leading arm debris there. Through use of 'chemical fingerprinting', we conclude that these mostly receding northern hemisphere M giants also are Sgr stars, likely trailing arm debris overlapping the Sgr leading arm in the north.

Chou, Mei-Yin; Majewski, Steven R.; Patterson, Richard J. [Department of Astronomy, University of Virginia, Charlottesville, VA 22904-4325 (United States); Cunha, Katia; Smith, Verne V. [National Optical Astronomy Observatories, P.O. Box 26732, Tucson, AZ 85726 (United States); Martinez-Delgado, David [Instituto de Astrofisica de Canarias, La Laguna (Spain); Geisler, Doug, E-mail: mc6ss@virginia.ed, E-mail: srm4n@virginia.ed, E-mail: rjp0i@virginia.ed, E-mail: cunha@noao.ed, E-mail: vsmith@noao.ed, E-mail: ddelgado@iac.e, E-mail: dgeisler@astro-udec.c [Departamento de Astronomia, Universidad de Concepcion, Casilla 160-C, Concepcion (Chile)

2010-01-10T23:59:59.000Z

371

RECYCLABILITY CHALLENGES IN "ABUNDANT" MATERIAL-BASED TECHNOLOGIES Annick Anctila  

E-Print Network (OSTI)

growth of photovoltaic markets requires investigating three measurable aspects: Cost, resource-3443957, VMF@BNL.GOV ABSTRACT: Much current research in photovoltaic technology is directed towards using sustainability metrics for large-scale PV growth are low cost and minimum environmental impact. As the numbers

372

An Excursion Set Model of the Cosmic Web: The Abundance of Sheets, Filaments, and Halos  

Science Journals Connector (OSTI)

We discuss an analytic approach for modeling structure formation in sheets, filaments, and knots. This is accomplished by combining models of triaxial collapse with the excursion set approach: sheets are defined as objects that have collapsed along only one axis, filaments have collapsed along two axes, and halos are objects in which triaxial collapse is complete. In the simplest version of this approach, which we develop here, large-scale structure shows a clear hierarchy of morphologies: the mass in large-scale sheets is partitioned up among lower mass filaments, which themselves are made up of still lower mass halos. Our approach provides analytic estimates of the mass fraction in sheets, filaments, and halos and its evolution, for any background cosmological model and any initial fluctuation spectrum. In the currently popular ?CDM model, our analysis suggests that more than 99% of the cosmic mass is in sheets, and 72% in filaments, with mass larger than 1010 M? at the present time. For halos, this number is only 46%. Our approach also provides analytic estimates of how halo abundances at any given time correlate with the morphology of the surrounding large-scale structure and how halo evolution correlates with the morphology of large-scale structure.

Jiajian Shen; Tom Abel; H. J. Mo; Ravi K. Sheth

2006-01-01T23:59:59.000Z

373

An Excursion Set Model of the Cosmic Web: the Abundance of Sheets, Filaments And Halos  

SciTech Connect

We discuss an analytic approach for modeling structure formation in sheets, filaments and knots. This is accomplished by combining models of triaxial collapse with the excursion set approach: sheets are defined as objects which have collapsed along only one axis, filaments have collapsed along two axes, and halos are objects in which triaxial collapse is complete. In the simplest version of this approach, which we develop here, large scale structure shows a clear hierarchy of morphologies: the mass in large-scale sheets is partitioned up among lower mass filaments, which themselves are made-up of still lower mass halos. Our approach provides analytic estimates of the mass fraction in sheets, filaments and halos, and its evolution, for any background cosmological model and any initial fluctuation spectrum. In the currently popular {Lambda}CDM model, our analysis suggests that more than 99% of the mass in sheets, and 72% of the mass in filaments, is stored in objects more massive than 10{sup 10}M{sub {circle_dot}} at the present time. For halos, this number is only 46%. Our approach also provides analytic estimates of how halo abundances at any given time correlate with the morphology of the surrounding large-scale structure, and how halo evolution correlates with the morphology of large scale structure.

Shen, Jiajian; /Penn State U., Astron. Astrophys.; Abel, Tom; /KIPAC, Menlo Park; Mo, Houjun; /Massachusetts U., Amherst; Sheth, Ravi; /Pennsylvania U.

2006-01-11T23:59:59.000Z

374

SOLAR CYCLE ABUNDANCE VARIATIONS IN COROTATING INTERACTION REGIONS: EVIDENCE FOR A SUPRATHERMAL ION SEED POPULATION  

SciTech Connect

We have surveyed the heavy ion composition of corotating interaction regions (CIRs) over the recent solar minimum and combined this with our earlier survey to cover the 1998-2011 period encompassing a full solar cycle and onset of the new cycle. We find that the solar minimum CIR intensities and spectral forms are similar to those in active periods, indicating that the basic acceleration mechanism does not vary with solar activity for energies below a few MeV nucleon{sup -1}. However, the heavy ion abundances show a clear correlation with sunspot number, where heavy ions are more enhanced during active periods. Over the mass range He-Fe, the enhancement is organized by a power law in Q/M with exponent -1.9, with Fe/O varying by a factor of {approx}6. During solar minimum CIR Fe/O was {approx}0.05, well below the corresponding solar wind ratio. Previous studies have shown that rare ions (He{sup +}, {sup 3}He) enhanced in CIRs come from the suprathermal ion pool. The observations presented here extend this evidence, indicating that in addition to rare He{sup +} and {sup 3}He the CIR major heavy ion species are accelerated out of the suprathermal ion pool, not the bulk solar wind.

Mason, G. M. [Applied Physics Laboratory, Johns Hopkins University, Laurel, MD 20723 (United States); Desai, M. I. [Southwest Research Institute, San Antonio, TX 78228 (United States); Li, G., E-mail: glenn.mason@jhuapl.edu [Department of Physics, University of Alabama in Huntsville, Huntsville, AL 35805 (United States)

2012-04-01T23:59:59.000Z

375

NETL: Natural Gas and Petroleum Storage Projects  

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

Storage Storage Strategic Petroleum Reserve Click on project number for a more detailed description of the project Project Number Project Name Primary Performer DE-FE0014830 Strategic Petroleum Reserve Core Laboratories Natural Gas Storage There are currently no active storage projects Storage - Completed Projects Click on project number for a more detailed description of the project Project Number Project Name Primary Performer DE-DT0000358 Strategic Petroleum Reserve Northrop Grumman Missions System DE-FC26-03NT41813 Geomechanical Analysis and Design Criteria Terralog Technologies DE-FC26-03NT41779 Natural Gas Storage Technology Consortium Pennsylvania State University (PSU) DE-FC26-03NT41743 Improved Deliverability in Gas Storage Fields by Identifying the Timing and Sources of Damage Using Smart Storage Technology Schlumberger Technology Corporation

376

Sensitivity of low degree oscillations to the change in solar abundances  

E-Print Network (OSTI)

Context. The most recent determination of the solar chemical composition, using a time-dependent, 3D hydrodynamical model of the solar atmosphere, exhibits a significant decrease of C, N, O abundances compared to their previous values. Solar models that use these new abundances are not consistent with helioseismological determinations of the sound speed profile, the surface helium abundance and the convection zone depth. Aims. We investigate the effect of changes of solar abundances on low degree p-mode and g-mode characteristics which are strong constraints of the solar core. We consider particularly the increase of neon abundance in the new solar mixture in order to reduce the discrepancy between models using new abundances and helioseismology. Methods. The observational determinations of solar frequencies from the GOLF instrument are used to test solar models computed with different chemical compositions. We consider in particular the normalized small frequency spacings in the low degree p-mode frequency range. Results. Low-degree small frequency spacings are very sensitive to changes in the heavy-element abundances, notably neon. We show that by considering all the seismic constraints, including the small frequency spacings, a rather large increase of neon abundance by about (0.5 +/- 0.05)dex can be a good solution to the discrepancy between solar models that use new abundances and low degree helioseismology, subject to adjusting slightly the solar age and the highest abundances. We also show that the change in solar abundances, notably neon, considerably affects g-mode frequencies, with relative frequency differences between the old and the new models higher than 1.5%

A. Zaatri; J. Provost; G. Berthomieu; P. Morel; T. Corbard

2007-04-18T23:59:59.000Z

377

The Stellar Abundances for Galactic Archaeology (SAGA) Database III - Analysis of Enrichment Histories for Elements and Two Modes of Star Formation during the Early Evolution of Milky Way  

E-Print Network (OSTI)

We study the enrichment histories for nine elements, C, four alpha-elements of Mg, Si, Ca, and Ti, Sc, and three iron-peak elements of Co, Ni, and Zn, by using a large number of stellar data, collected by the Stellar Abundances for Galactic Archaeology (SAGA) database. We find statistically significant changes, or breaks, of the mean abundance ratios to iron at three metallicities of [Fe/H]-1.8, -2.2, and -3.3. Across the first one, the mean abundance ratios decrease with the metallicity by similar extents for all the elements with the sufficient data. Across the latter two, downward trends with the metallicity are also detected but for limited elements, C, Co, Zn, and possibly Sc, and for two of Co and Zn, respectively. The breaks define four stellar populations with the different abundance patters which are dominant in each metallicity range divided by the breaks, Pop IIa, IIb, IIc, and IId in order of increasing metallicity. We also explore their spatial distributions with the spectroscopic distances to de...

Yamada, Shimako; Komiya, Yutaka; Aoki, Wako; Fujimoto, Masayuki Y

2013-01-01T23:59:59.000Z

378

USING CUMULATIVE NUMBER DENSITIES TO COMPARE GALAXIES ACROSS COSMIC TIME  

SciTech Connect

Comparing galaxies across redshifts at fixed cumulative number density is a popular way to estimate the evolution of specific galaxy populations. This method ignores scatter in mass accretion histories and galaxy-galaxy mergers, which can lead to errors when comparing galaxies over large redshift ranges (?z > 1). We use abundance matching in the ?CDM paradigm to estimate the median change in cumulative number density with redshift and provide a simple fit (+0.16 dex per unit ?z) for progenitors of z = 0 galaxies. We find that galaxy descendants do not evolve in the same way as galaxy progenitors, largely due to scatter in mass accretion histories. We also provide estimates for the 1? range of cumulative number densities corresponding to galaxy progenitors and descendants. Finally, we discuss some limits on cumulative number density comparisons, which arise due to difficulties measuring physical quantities (e.g., stellar mass) consistently across redshifts. A public tool to calculate cumulative number density evolution for galaxies, as well as approximate halo masses, is available online.

Behroozi, Peter S.; Wechsler, Risa H. [Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford, CA 94305 (United States)] [Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford, CA 94305 (United States); Marchesini, Danilo [Department of Physics and Astronomy, Tufts University, Medford, MA 02155 (United States)] [Department of Physics and Astronomy, Tufts University, Medford, MA 02155 (United States); Muzzin, Adam [Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden (Netherlands)] [Leiden Observatory, Leiden University, P.O. Box 9513, 2300 RA Leiden (Netherlands); Papovich, Casey [Department of Physics and Astronomy, Texas A and M University, College Station, TX 77843 (United States)] [Department of Physics and Astronomy, Texas A and M University, College Station, TX 77843 (United States); Stefanon, Mauro [Physics and Astronomy Department, University of Missouri, Columbia, MO 65211 (United States)] [Physics and Astronomy Department, University of Missouri, Columbia, MO 65211 (United States)

2013-11-01T23:59:59.000Z

379

Natural Gas Annual, 2001  

Gasoline and Diesel Fuel Update (EIA)

1 1 EIA Home > Natural Gas > Natural Gas Data Publications Natural Gas Annual, 2001 The Natural Gas Annual, 2001 provides information on the supply and disposition of natural gas in the United States. Production, transmission, storage, deliveries, and price data are published by State for 2001. Summary data are presented for each State for 1997 to 2001. The data that appear in the tables of the Natural Gas Annual, 2001 are available as self-extracting executable files in ASCII TXT or CSV file format. This volume emphasizes information for 2001, although some tables show a five-year history. Please read the file entitled README.V1 for a description and documentation of information included in this file. Also available are files containing the following data: Summary Statistics - Natural Gas in the United States, 1997-2001 (Table 1) ASCII TXT, and Natural Gas Supply and Disposition by State, 2001 (Table 2) ASCII TXT.

380

,"Mississippi Natural Gas Summary"  

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

"N3050MS3","N3010MS3","N3020MS3","N3035MS3","NA1570SMS3","N3045MS3" "Date","Mississippi Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Mississippi Natural Gas...

Note: This page contains sample records for the topic "number natural abundance" 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.


381

Nature/Culture/Seawater  

E-Print Network (OSTI)

This essay considers seawater as a substance and symbol in anthropological and social theory. Seawater has occupied an ambiguous place with respect to anthropological categories of nature and culture. Seawater as nature ...

Helmreich, Stefan

382

Natural Gas Monthly  

Reports and Publications (EIA)

Highlights activities, events, and analyses associated with the natural gas industry. Volume and price data are presented each month for natural gas production, distribution, consumption, and interstate pipeline activities. Producer related activities and underground storage data are also reported.

2014-01-01T23:59:59.000Z

383

Natural gas annual 1996  

SciTech Connect

This document provides information on the supply and disposition of natural gas to a wide audience. The 1996 data are presented in a sequence that follows natural gas from it`s production to it`s end use.

NONE

1997-09-01T23:59:59.000Z

384

,"Connecticut Natural Gas Summary"  

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

3","N3010CT3","N3020CT3","N3035CT3","N3045CT3" "Date","Natural Gas Citygate Price in Connecticut (Dollars per Thousand Cubic Feet)","Connecticut Price of Natural Gas Delivered to...

385

Natural Gas Weekly Update  

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

Natural Gas Rotary Rig Count Rises to Highest Level since February 2009. The natural gas rotary rig count was 992 as of Friday, August 13, according to data released by Baker...

386

THE CORONAL ABUNDANCES OF MID-F DWARFS  

SciTech Connect

A Chandra spectrum of the moderately active nearby F6 V star {pi}{sup 3} Ori is used to study the coronal properties of mid-F dwarfs. We find that {pi}{sup 3} Ori's coronal emission measure distribution is very similar to those of moderately active G and K dwarfs, with an emission measure peak near log T = 6.6 seeming to be ubiquitous for such stars. In contrast to coronal temperature, coronal abundances are known to depend on spectral type for main sequence stars. Based on this previously known relation, we expected {pi}{sup 3} Ori's corona to exhibit an extremely strong ''first ionization potential (FIP) effect'', a phenomenon first identified on the Sun where elements with low FIP are enhanced in the corona. We instead find that {pi}{sup 3} Ori's corona exhibits a FIP effect essentially identical to that of the Sun and other early G dwarfs, perhaps indicating that the increase in FIP bias toward earlier spectral types stops or at least slows for F stars. We find that {pi}{sup 3} Ori's coronal characteristics are significantly different from two previously studied mid-F stars, Procyon (F5 IV-V) and {tau} Boo (F7 V). We believe {pi}{sup 3} Ori is more representative of the coronal characteristics of mid-F dwarfs, with Procyon being different because of luminosity class, and {tau} Boo being different because of the effects of one of two close companions, one stellar ({tau} Boo B: M2 V) and one planetary.

Wood, Brian E.; Laming, J. Martin [Naval Research Laboratory, Space Science Division, Washington, DC 20375 (United States)

2013-05-10T23:59:59.000Z

387

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

. Home | Petroleum | Gasoline | Diesel | Propane | Natural Gas | Electricity | Coal | Nuclear Renewables | Alternative Fuels | Prices | States | International | Country Analysis...

388

Natural gas annual 1994  

SciTech Connect

The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1994 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1990 to 1994 for each Census Division and each State. Annual historical data are shown at the national level.

NONE

1995-11-17T23:59:59.000Z

389

Natural gas annual 1995  

SciTech Connect

The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1995 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1991 to 1995 for each Census Division and each State. Annual historical data are shown at the national level.

NONE

1996-11-01T23:59:59.000Z

390

FR Cnc Nature Revisited  

Science Journals Connector (OSTI)

The results of photometric and spectroscopic monitoring of FR Cnc reported a tricky nature. We carried out...

M. C. Gálvez; A. Golovin; M. Hernán-Obispo…

2010-01-01T23:59:59.000Z

391

Natural Gas: More Gasbuggies  

Science Journals Connector (OSTI)

... first US experiment in the use of underground nuclear explosions to increase the recovery of natural ...naturalgas ...

1969-04-12T23:59:59.000Z

392

Geology of Natural Gas  

Science Journals Connector (OSTI)

... to an accepted plan have produced a most comprehensive geological account of the occurrence of natural ...naturalgas ...

E. F. A.

1936-01-04T23:59:59.000Z

393

Natural Gas Reforming  

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

Natural gas reforming is an advanced and mature production process that builds upon the existing natural gas pipeline delivery infrastructure. Today, 95% of the hydrogen produced in the United States is made by natural gas reforming in large central plants. This technology is an important pathway for near-term hydrogen production.

394

MODELING PHYTOPLANKTON ABUNDANCE IN SAGINAW BAY, LAKE HURON: USING ARTIFICIAL NEURAL NETWORKS TO DISCERN FUNCTIONAL INFLUENCE  

E-Print Network (OSTI)

MODELING PHYTOPLANKTON ABUNDANCE IN SAGINAW BAY, LAKE HURON: USING ARTIFICIAL NEURAL NETWORKS; phytoplankton Abbreviations: ANN, artificial neural network; ClÃ? , chloride; DOC, dissolved organic carbon; Kd Phytoplankton abundance, as chl a, in Saginaw Bay, Lake Huron was modeled using arti- ficial neural networks

395

Accepted Manuscript Abundances of presolar silicon carbide grains in primitive meteorites deter-  

E-Print Network (OSTI)

Accepted Manuscript Abundances of presolar silicon carbide grains in primitive meteorites deter.R., Alexander, C.M., Orthous-Daunay, o-R., Franchi, I.A., Hoppe, P., Abundances of presolar silicon carbide of presolar silicon carbide grains in primitive meteorites determined by NanoSIMS Jemma Davidsona,1,* , Henner

Nittler, Larry R.

396

The Solar Wind Helium Abundance: Variation with Wind Speed and the Solar Cycle  

E-Print Network (OSTI)

The Solar Wind Helium Abundance: Variation with Wind Speed and the Solar Cycle Matthias R. Aellig Alamos National Lab., Los Alamos, NM 87545 Abstract We investigate the helium abundance in the solar wind of 1994 and early 2000 are analyzed. In agreement with similar work for previous solar cycles, we find

Richardson, John

397

Grey seal distribution and abundance in North Wales, 2002-2003  

E-Print Network (OSTI)

i Grey seal distribution and abundance in North Wales, 2002-2003 Westcott, S.M. & Stringell, T.B. Stringell Title: "Grey seal distribution and abundance in North Wales, 2002-2003" Authors: Westcott, S Library x1 C. Duck, SMRU x1 Joe Breen EHS x1 PML, Library, Plymouth x1 S. Westcott x5 M. Baines x1 S

Bearhop, Stuart

398

Abundance Patterns in the Interstellar Medium of Early-type Galaxies Observed with Suzaku  

E-Print Network (OSTI)

We have analyzed 17 early-type galaxies, 13 ellipticals and 4 S0's, observed with Suzaku, and investigated metal abundances (O, Mg, Si, and Fe) and abundance ratios (O/Fe, Mg/Fe, and Si/Fe) in the interstellar medium (ISM). The emission from each on-source region, which is 4 times effective radius, r_e, is reproduced with one- or two- temperature thermal plasma models as well as a multi-temperature model, using APEC plasma code v2.0.1. The multi-temperature model gave almost the same abundances and abundance ratios with the 1T or 2T models. The weighted averages of the O, Mg, Si, and Fe abundances of all the sample galaxies derived from the multi-temperature model fits are 0.83+-0.04, 0.93+-0.03, 0.80+-0.02, and 0.80+-0.02 solar, respectively, in solar units according to the solar abundance table by Lodders (2003). These abundances show no significant dependence on the morphology and environment. The systematic differences in the derived metal abundances between the version 2.0.1 and 1.3.1 of APEC plasma code...

Konami, Saori; Nagino, Ryo; Tamagawa, Toru

2014-01-01T23:59:59.000Z

399

Neon Abundances in B-Stars of the Orion Association: Solving the Solar Model Problem?  

E-Print Network (OSTI)

We report on non-LTE Ne abundances for a sample of B-type stellar members of the Orion Association. The abundances were derived by means of non-LTE fully metal-blanketed model atmospheres and extensive model atoms with updated atomic data. We find that these young stars have a very homogeneous abundance of A(Ne) = 8.27 +/- 0.05. This abundance is higher by ~0.4 dex than currently adopted solar value, A(Ne)=7.84, which is derived from lines produced in the corona and active regions. The general agreement between the abundances of C, N, and O derived for B stars with the solar abundances of these elements derived from 3-D hydrodynamical models atmospheres strongly suggests that the abundance patterns of the light elements in the Sun and B stars are broadly similar. If this hypothesis is true, then the Ne abundance derived here is the same within the uncertainties as the value required to reconcile solar models with helioseismological observations.

Katia Cunha; Ivan Hubeny; Thierry Lanz

2006-06-29T23:59:59.000Z

400

N/O in spiral discs: a new algorithm for abundance determinations  

Science Journals Connector (OSTI)

......for observing temperature-sensitive auroral lines for deter- mining N/O abundance ratios in H II regions. We now pro- ceed to test our method. 2.2 Testing the method Input parameters for each model in our grid include ele- mental abundances, gas......

T. R. Thurston; M. G. Edmunds; R. B. C. Henry

1996-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "number natural abundance" 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.


401

EARTH ABUNDANT MATERIALS FOR HIGH EFFICIENCY HETEROJUNCTION THIN FILM SOLAR CELLS  

E-Print Network (OSTI)

EARTH ABUNDANT MATERIALS FOR HIGH EFFICIENCY HETEROJUNCTION THIN FILM SOLAR CELLS Yun Seog Lee 1; * Corresponding author: buonassisi@mit.edu; ABSTRACT We investigate earth abundant materials for thin- film solar cuprous oxide (Cu2O) as a prototype candidate for investigation as an absorber layer in thin film solar

Ceder, Gerbrand

402

Seasonal measurements of acetone and methanol: Abundances and implications for atmospheric budgets  

E-Print Network (OSTI)

, 2002] and photochemical produc- tion from hydrocarbon precursors. Methanol is often the most abundantSeasonal measurements of acetone and methanol: Abundances and implications for atmospheric budgets December 2005; published 21 February 2006. [1] Acetone and methanol have been measured hourly at a rural

Cohen, Ronald C.

403

The Oxygen Abundance of Nearby Galaxies from Sloan Digital Sky Survey Spectra  

E-Print Network (OSTI)

We have derived the oxygen abundance for a sample of nearby galaxies in the Data Release 5 of the Sloan Digital Sky Survey (SDSS) which possess at least two independent spectra of one or several HII regions with a detected [OIII]4363 auroral line. Since, for nearby galaxies, the [OII]3727 nebular line is out of the observed wavelength range, we propose a method to derive (O/H)_ff abundances using the classic Te method coupled with the ff relation. (O/H)_7325 abundances have also been determined, based on the [OII]7320,7330 line intensities, and using a small modification of the standard Te method. The (O/H)_ff and (O/H)_7325 abundances have been derived with both the one- and two-dimensional t_2 - t_3 relations. It was found that the (O/H)_ff abundances derived with the parametric two-dimensional t_2 - t_3 relation are most reliable. Oxygen abundances have been determined in 29 nearby galaxies, based on 84 individual abundance determinations in HII regions. Because of our selection methods, the metallicity of our galaxies lies in the narrow range 8.2 oxygen abundances in the disk of the spiral galaxy NGC 4490 is determined for the first time.

L. S. Pilyugin; T. X. Thuan

2007-07-19T23:59:59.000Z

404

3D Hydrodynamical Simulations of Surface Convection in Red Giant Stars. Impact on spectral line formation and abundance analysis  

E-Print Network (OSTI)

We investigate the impact of 3D hydrodynamical model atmospheres of red giant stars at different metallicities on the formation of spectral lines of a number of ions and molecules. We carry out realistic 3D simulations of surface convection in red giant stars with varying stellar parameters. We use the simulations as time-dependent hydrodynamical model stellar atmospheres to compute atomic (Li, O, Na, Mg, Ca, Fe) and molecular (CH, NH, OH) spectral lines under the assumption of local thermodynamic equilibrium (LTE). We compare the line strengths computed in 3D with the results of analogous line formation calculations for 1D, hydrostatic, plane-parallel MARCS model atmospheres in order to estimate the impact of 3D models on the derivation of elemental abundances. The temperature and density inhomogeneities and correlated velocities in 3D models, as well as the differences between the 1D and mean 3D structures significantly affect the predicted line strengths. Under the assumption of LTE, the low atmospheric temperatures of very metal-poor 3D model atmospheres cause the lines from neutral species and molecules to appear stronger than in 1D. Therefore, elemental abundances derived from these lines using 3D models are significantly lower than according to 1D analyses. Differences between 3D and 1D abundances of C, N, and O derived from CH, NH, and OH weak low-excitation lines are found to be in the range -0.5 dex to -1.0 dex for the the red giant stars at [Fe/H]=-3 considered here. At this metallicity, large negative corrections (about -0.8 dex) are also found for weak low-excitation Fe I lines. We caution, however, that departures from LTE might be significant for these and other elements and comparable to the effects due to stellar granulation.

Remo Collet; Martin Asplund; Regner Trampedach

2007-03-26T23:59:59.000Z

405

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

10 (next release 2:00 p.m. on June 17) 10 (next release 2:00 p.m. on June 17) Since Wednesday, June 2, natural gas spot prices have decreased at virtually all market locations in the Lower 48 States. For the week (Wednesday-Wednesday), prices at the Henry Hub decreased 46 cents or about 7 percent to $6.05 per MMBtu. Yesterday (June 9), the price of the NYMEX futures contract for July delivery at the Henry Hub settled at $6.082 per MMBtu, decreasing roughly 44 cents or nearly 7 percent since last Wednesday. Natural gas in storage was 1,666 Bcf as of June 4, which is 0.2 percent below the 5-year average. The spot price for West Texas Intermediate (WTI) crude oil fell $2.36 per barrel or nearly 6 percent on the week to $37.60 per barrel or $6.48 per MMBtu. Prices: Widespread moderate temperatures and falling crude oil prices contributed to price declines of 31 to 87 cents per MMBtu at virtually all market locations in the Lower 48 States since last Wednesday, June 2. The steepest declines occurred principally west of the Rockies, where prices fell more than 70 cents per MMBtu at most markets, with the largest declines in California. The lack of temperature-driven demand also caused operational difficulties, with a number of pipelines in the West issuing either high inventory OFOs or critical notices in response to high linepack on their systems. East of the Rockies, price decreases were widespread with declines ranging between 40 and 60 cents per MMBtu at most markets. These declines were more pronounced in the central regions of the Lower 48 States with declines averaging between 50 and 60 cents per MMBtu in the Midcontinent, Midwest, and Texas regions. In Louisiana and east of the Mississippi, prices fell less than 50 cents. With these widespread declines, prices have fallen below last year's levels by as much as 39 cents per MMBtu. For example, prices at the southern California border are 39 cents or nearly 7 percent below last year's level, while prices at the Henry Hubare 20 cents or 3 percent below last year's level.

406

NATURE CHEMISTRY | VOL 3 | OCTOBER 2011 | www.nature.com/naturechemistry 763 unlight is the most abundant source of energy we have at our  

E-Print Network (OSTI)

such as those compris- ing organic solar cells. The structural differences in antennas can be subtle between. Fleming2,3 , Alexandra Olaya-Castro4 and Rienk van Grondelle5 Solar fuel production often starts will be used for solar fuel production, to direct and regulate excitation energy flow using molecular

Fleming, Graham R.

407

RNG: A Practitioner's Overview Random Number Generation  

E-Print Network (OSTI)

RNG: A Practitioner's Overview Random Number Generation A Practitioner's Overview Prof. Michael and Monte Carlo Methods Pseudorandom number generation Types of pseudorandom numbers Properties of these pseudorandom numbers Parallelization of pseudorandom number generators New directions for SPRNG Quasirandom

Mascagni, Michael

408

Obama Administration Announces New Partnership on Unconventional Natural  

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

Partnership on Unconventional Partnership on Unconventional Natural Gas and Oil Research Obama Administration Announces New Partnership on Unconventional Natural Gas and Oil Research April 13, 2012 - 3:01pm Addthis WASHINGTON, DC - Today, three federal agencies announced a formal partnership to coordinate and align all research associated with development of our nation's abundant unconventional natural gas and oil resources. The partnership exemplifies the cross-government coordination required under President Obama's Executive Order released earlier today, which created a new Interagency Working Group to Support Safe and Responsible Development of Unconventional Domestic Natural Gas Resources. This new partnership will help coordinate current and future research and scientific studies undertaken by the U.S. Department of

409

Natural Gas Annual 2006  

Gasoline and Diesel Fuel Update (EIA)

6 6 Released: October 31, 2007 The Natural Gas Annual 2006 Summary Highlights provides an overview of the supply and disposition of natural gas in 2006 and is intended as a supplement to the Natural Gas Annual 2006. The Natural Gas Annual 2006 Summary Highlights provides an overview of the supply and disposition of natural gas in 2006 and is intended as a supplement to the Natural Gas Annual 2006. Natural Gas Annual --- Full report in PDF (5 MB) Special Files --- All CSV files contained in a self-extracting executable file. Respondent/Company Level Natural Gas Data Files Annual Natural and Supplemental Gas Supply and Disposition Company level data (1996 to 2007) as reported on Form EIA-176 are provided in the EIA-176 Query System and selected data files. EIA-191A Field Level Underground Natural Gas Storage Data: Detailed annual data (2006 and 2007) of storage field capacity, field type, and maximum deliverability as of December 31st of the report year, as reported by operators of all U.S. underground natural gas storage fields.

410

Abundances and kinematics of K giants in the galactic nuclear bulge  

SciTech Connect

Spectroscopy and photometry were obtained for 100 K giants in Baade's Window at l = 1/sup 0/, b = -4/sup 0/. The abundance distribution of the nuclear bulge K giants was derived relative to 45 stars of known abundance. The abundances run from -1 to nearly +1 dex, with a peak at 0.3 dex, or twice the solar abundance. Of the 88 stars with derived abundances, 22% exceeded the abundance of the most metal rich local K giants; 50% exceeded the solar abundance, and 10% were metal poor (< -0.6 dex). Radial velocities were measured for 53 nuclear bulge K giants which also have derived abundances. Their velocity dispersion is 104 km/sec. The mean velocity is -19 +/- 14 km/sec; within 1 sigma of the solar Pi velocity of -10 km/sec. When this sample is divided into 3 subsets based on the abundances, the subset of 21 stars > 0.3 dex has sigma = 92 +/- 14 km/sec and the metal poor subset of 16 stars <-0.3 dex has J = 126 +/- 22 km/sec. An intermediate set of 16 stars has sigma = 97 +/- 17 km/sec. The most metal rich stars may have a bulk velocity of -38 +/- 14 km/sec, 1sigma less than the -19 km/sec of the metal poor stars. No evidence was found that either the metal rich or metal poor stars follow the galactic rotation curve; hence, neither population appears to be rotation supported. Optical and infrared photometry is presented for nuclear bulge K giants. The colors of these stars are shown to be too hot for their derived metal abundances.

Rich, R.M.

1986-01-01T23:59:59.000Z

411

XMM observation of M~87 II. Abundance structure of the interstellar and intergalactic medium  

E-Print Network (OSTI)

Based on a detailed study of the temperature structure of the intracluster medium in the halo of M~87, abundance profiles of 7 elements, O, Mg, Si, S, Ar, Ca, and Fe are derived. In addition, abundance ratios are derived from the ratios of line strengths, whose temperature dependences are small within the temperature range of the ICM of M~87. The abundances of Si, S, Ar, Ca and Fe show strong decreasing gradients outside 2$'$ and become nearly constant within the radius at $\\sim1.5$ solar. The Fe/Si ratio is determined to be 0.9 solar with no radial gradient. In contrast, the O abundance is less than a half of the Si abundance at the center and has a flatter gradient. The Mg abundance is $\\sim$1 solar within 2$'$, which is close to stellar abundance within the same radius. The O/Si/Fe pattern of M~87 is located at the simple extension of that of Galactic stars. The observed Mg/O ratio is about 1.25 solar, which is also the same ratio as for Galactic stars. The O/Si/Fe ratio indicates that the SN Ia contribution to Si and Fe becomes important towards the center and SN Ia products have similar abundances of Si and Fe at least around M~87, which may reflect dimmer SN Ia observed in old stellar systems. The S abundance is similar to the Si abundance at the center, but has a steeper gradient. This result suggests that the S/Si ratio of SN II products is much smaller than the solar ratio.

Kyoko Matsushita; Alexis Finoguenov; Hans Böhringer

2002-12-03T23:59:59.000Z

412

L-THEORY OF 3-MANIFOLDS WITH NON-VANISHING FIRST BETTI NUMBER  

E-Print Network (OSTI)

L-THEORY OF 3-MANIFOLDS WITH NON-VANISHING FIRST BETTI NUMBER Sayed K. Roushon Abstract;rst Betti number can be computed in terms of a generalized homology theory. A consequence compact irreducible 3-manifold M with nonempty boundary has nonzero #12;rst Betti number, it is natural

Roushon, S. K.

413

-Betti numbers of locally compact groups and their cross section equivalence relations  

E-Print Network (OSTI)

L2 -Betti numbers of locally compact groups and their cross section equivalence relations by David Mathematical Society. Abstract We prove that the L2 -Betti numbers of a unimodular locally compact group G coincide, up to a natural scaling constant, with the L2 -Betti numbers of the countable equivalence

Vaes, Stefaan

414

Natural Gas Annual, 2004  

Gasoline and Diesel Fuel Update (EIA)

4 4 EIA Home > Natural Gas > Natural Gas Data Publications Natural Gas Annual, 2004 Natural Gas Annual 2004 Release date: December 19, 2005 Next release date: January 2007 The Natural Gas Annual, 2004 provides information on the supply and disposition of natural gas in the United States. Production, transmission, storage, deliveries, and price data are published by State for 2004. Summary data are presented for each State for 2000 to 2004. The data that appear in the tables of the Natural Gas Annual, 2004 is available as self-extracting executable file or CSV file format. This volume emphasizes information for 2004, although some tables show a five-year history. Please read the file entitled README.V1 for a description and documentation of information included in this file.

415

Laser interrogation of latent vehicle registration number  

SciTech Connect

A recent investigation involved automobile registration numbers as important evidentiary specimens. In California, as in most states, small, thin metallic decals are issued to owners of vehicles each year as the registration is renewed. The decals are applied directly to the license plate of the vehicle and typically on top of the previous year`s expired decal. To afford some degree of security, the individual registration decals have been designed to tear easily; they cannot be separated from each other, but can be carefully removed intact from the metal license plate by using a razor blade. In September 1993, the City of Livermore Police Department obtained a blue 1993 California decal that had been placed over an orange 1992 decal. The two decals were being investigated as possible evidence in a case involving vehicle registration fraud. To confirm the suspicion and implicate a suspect, the department needed to known the registration number on the bottom (completely covered) 1992 decal. The authors attempted to use intense and directed light to interrogate the colored stickers. Optical illumination using a filtered white-light source partially identified the latent number. However, the most successful technique used a tunable dye laser pumped by a pulsed Nd:YAG laser. By selectively tuning the wavelength and intensity of the dye laser, backlit illumination of the decals permitted visualization of the underlying registration number through the surface of the top sticker. With optimally-tuned wavelength and intensity, 100% accuracy was obtained in identifying the sequence of latent characters. The advantage of optical techniques is their completely nondestructive nature, thus preserving the evidence for further interrogation or courtroom presentation.

Russo, R.E. [Lawrence Berkeley Lab., CA (United States). Energy and Environment Div.]|[Lawrence Livermore National Lab., CA (United States). Forensic Science Center; Pelkey, G.E. [City of Livermore Police Dept., CA (United States); Grant, P.; Whipple, R.E.; Andresen, B.D. [Lawrence Livermore National Lab., CA (United States). Forensic Science Center

1994-09-01T23:59:59.000Z

416

Underground Natural Gas Storage Capacity  

Gasoline and Diesel Fuel Update (EIA)

. . Underground Natural Gas Storage Capacity by State, December 31, 1996 (Capacity in Billion Cubic Feet) Table State Interstate Companies Intrastate Companies Independent Companies Total Number of Active Fields Capacity Number of Active Fields Capacity Number of Active Fields Capacity Number of Active Fields Capacity Percent of U.S. Capacity Alabama................. 0 0 1 3 0 0 1 3 0.04 Arkansas ................ 0 0 3 32 0 0 3 32 0.40 California................ 0 0 10 470 0 0 10 470 5.89 Colorado ................ 4 66 5 34 0 0 9 100 1.25 Illinois ..................... 6 259 24 639 0 0 30 898 11.26 Indiana ................... 6 16 22 97 0 0 28 113 1.42 Iowa ....................... 4 270 0 0 0 0 4 270 3.39 Kansas ................... 16 279 2 6 0 0 18 285 3.57 Kentucky ................ 6 167 18 49 0 0 24 216 2.71 Louisiana................ 8 530 4 25 0 0 12 555 6.95 Maryland ................ 1 62

417

Motion at low Reynolds number  

E-Print Network (OSTI)

The work described in this thesis centers on inertialess motion at low Reynolds numbers at the crossroad between biofluids and microfluids. Here we address questions regarding locomotion of micro-swimmers, transport of ...

Tam, Daniel See Wai, 1980-

2008-01-01T23:59:59.000Z

418

Departmental Business Instrument Numbering System  

Directives, Delegations, and Requirements

To prescribe procedures for assigning identifying numbers to all Department of Energy (DOE), including the National Nuclear Security Administration, business instruments. Cancels DOE 1331.2B. Canceled by DOE O 540.1A.

2000-12-05T23:59:59.000Z

419

Departmental Business Instrument Numbering System  

Directives, Delegations, and Requirements

The Order prescribes the procedures for assigning identifying numbers to all Department of Energy (DOE) and National Nuclear Security Administration (NNSA) business instruments. Cancels DOE O 540.1. Canceled by DOE O 540.1B.

2005-01-27T23:59:59.000Z

420

New Paradigm for Baryon and Lepton Number Violation  

E-Print Network (OSTI)

The possible discovery of proton decay, neutron-antineutron oscillation, neutrinoless beta decay in low energy experiments, and exotic signals related to the violation of the baryon and lepton numbers at collider experiments will change our understanding of the conservation of fundamental symmetries in nature. In this review we discuss the rare processes due to the existence of baryon and lepton number violating interactions. The simplest grand unified theories and the neutrino mass generation mechanisms are discussed. The theories where the baryon and lepton numbers are defined as local gauge symmetries spontaneously broken at the low scale are discussed in detail. The simplest supersymmetric gauge theory which predicts the existence of lepton number violating processes at the low scale is investigated. The main goal of this review is to discuss the main implications of baryon and lepton number violation in physics beyond the Standard Model.

Perez, Pavel Fileviez

2015-01-01T23:59:59.000Z

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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.


421

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

19, 2002 (next release 2:00 p.m. on September 26) 19, 2002 (next release 2:00 p.m. on September 26) Spot and futures prices surged upward as two tropical storms in close succession made their presence felt in gas markets over the past week. At the Henry Hub, the average spot price rose 47 cents week-to-week (Wednesday, September 11 to Wednesday, September 18) to $3.79 per MMBtu, which is at its highest level since May 1. In addition to some production shut-ins from Tropical Storm Hanna's arrival in the Gulf of Mexico on Friday (September 13), spot prices were also bolstered somewhat by warmer-than-normal temperatures in most regions since last Wednesday, as well as by outages of a number of nuclear-fired electric plants for routine maintenance. On the NYMEX, the settlement price of the futures contract for October delivery rose in five consecutive trading sessions, reaching a 4-month high yesterday at $3.787 per MMBtu. Natural gas in storage increased by 69 Bcf to 2,924 Bcf, 12 percent above the 5-year average. After falling 82 cents on Thursday (September 12) to dip below $29 per barrel, the spot price of West Texas Intermediate (WTI) crude oil rebounded strongly on Friday and remained above the $29 per barrel mark for the rest of the week, ending trading yesterday at $29.57 per barrel, or $5.10 per MMBtu. This is a decline of 20 cents per barrel from the WTI spot price of last Wednesday.

422

EIA - Natural Gas Pipeline Network - Largest Natural Gas Pipeline...  

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

Interstate Pipelines Table About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates Thirty Largest U.S. Interstate Natural...

423

EIA - Natural Gas Pipeline Network - Natural Gas Pipeline Compressor...  

Gasoline and Diesel Fuel Update (EIA)

Compressor Stations Illustration About U.S. Natural Gas Pipelines - Transporting Natural Gas based on data through 20072008 with selected updates U.S. Natural Gas Pipeline...

424

Effect of Fuel Wobbe Number on Pollutant Emissions from Advanced Technology Residential Water Heaters: Results of Controlled Experiments  

E-Print Network (OSTI)

Table 8. Calibration gases used for LNG interchangeabilityof liquefied natural gas (LNG) in California. The currentnumbers associated with many LNG supplies. Wobbe number is a

Rapp, VH

2014-01-01T23:59:59.000Z

425

COLORADO NATURAL HERITAGE PROGRAM Position Announcement  

E-Print Network (OSTI)

COLORADO NATURAL HERITAGE PROGRAM Position Announcement: Title: Zoology Field Technicians ­ Research Associate I Number of Positions: 1-12 (temporary) Work Location: Field sites throughout Colorado Pay Rate: $1800 - $2500/month plus per diem Duration: 3-6 months Summary of Positions The Colorado

426

Natural Gas Annual 2007  

Gasoline and Diesel Fuel Update (EIA)

7 7 Released: January 28, 2009 The Natural Gas Annual 2007 provides information on the supply and disposition of natural gas in the United States. Production, transmission, storage, deliveries, and price data are published by State for 2007. Summary data are presented for each State for 2003 to 2007. The Natural Gas Annual 2007 Summary Highlights provides an overview of the supply and disposition of natural gas in 2007 and is intended as a supplement to the Natural Gas Annual 2007. Natural Gas Annual --- Full report in PDF (5 MB) Special Files --- All CSV files contained in a self-extracting executable file. Respondent/Company Level Natural Gas Data Files Annual Natural and Supplemental Gas Supply and Disposition Company level data (1996 to 2007) as reported on Form EIA-176 are provided in the EIA-176 Query System and selected data files. EIA-191A Field Level Underground Natural Gas Storage Data: Detailed annual data (2005 to 2007) of storage field capacity, field type, and maximum deliverability as of December 31st of the report year, as reported by operators of all U.S. underground natural gas storage fields.

427

Natural Gas Annual, 2003  

Gasoline and Diesel Fuel Update (EIA)

3 3 EIA Home > Natural Gas > Natural Gas Data Publications Natural Gas Annual, 2003 Natural Gas Annual 2003 Release date: December 22, 2004 Next release date: January 2006 The Natural Gas Annual, 2003 provides information on the supply and disposition of natural gas in the United States. Production, transmission, storage, deliveries, and price data are published by State for 2003. Summary data are presented for each State for 1999 to 2003. “The Natural Gas Industry and Markets in 2003” is a special report that provides an overview of the supply and disposition of natural gas in 2003 and is intended as a supplement to the Natural Gas Annual 2003. The data that appear in the tables of the Natural Gas Annual, 2003 is available as self-extracting executable file or CSV file format. This volume emphasizes information for 2003, although some tables show a five-year history. Please read the file entitled README.V1 for a description and documentation of information included in this file.

428

Natural Gas Annual, 2002  

Gasoline and Diesel Fuel Update (EIA)

2 2 EIA Home > Natural Gas > Natural Gas Data Publications Natural Gas Annual, 2002 Natural Gas Annual 2002 Release date: January 29, 2004 Next release date: January 2005 The Natural Gas Annual, 2002 provides information on the supply and disposition of natural gas in the United States. Production, transmission, storage, deliveries, and price data are published by State for 2002. Summary data are presented for each State for 1998 to 2002. “The Natural Gas Industry and Markets in 2002” is a special report that provides an overview of the supply and disposition of natural gas in 2002 and is intended as a supplement to the Natural Gas Annual 2002. Changes to data sources for this Natural Gas Annual, as a result of ongoing data quality efforts, have resulted in revisions to several data series. Production volumes have been revised for the Federal offshore and several States. Several data series based on the Form EIA-176, including deliveries to end-users in several States, were also revised. Additionally, revisions have been made to include updates to the electric power and vehicle fuel end-use sectors.

429

Natural Gas Annual 2009  

Gasoline and Diesel Fuel Update (EIA)

9 9 Released: December 28, 2010 The Natural Gas Annual 2009 provides information on the supply and disposition of natural gas in the United States. Production, transmission, storage, deliveries, and price data are published by State for 2009. Summary data are presented for each State for 2005 to 2009. The Natural Gas Annual 2009 Summary Highlights provides an overview of the supply and disposition of natural gas in 2009 and is intended as a supplement to the Natural Gas Annual 2009. Natural Gas Annual --- Full report in PDF (5 MB) Special Files --- All CSV files contained in a self-extracting executable file. Respondent/Company Level Natural Gas Data Files Annual Natural and Supplemental Gas Supply and Disposition Company level data (1996 to 2009) as reported on Form EIA-176 are provided in the EIA-176 Query System and selected data files. EIA-191A Field Level Underground Natural Gas Storage Data: Detailed annual data (2005 to 2009) of storage field capacity, field type, and maximum deliverability as of December 31st of the report year, as reported by operators of all U.S. underground natural gas storage fields.

430

Natural Gas Annual 2008  

Gasoline and Diesel Fuel Update (EIA)

8 8 Released: March 2, 2010 The Natural Gas Annual 2008 provides information on the supply and disposition of natural gas in the United States. Production, transmission, storage, deliveries, and price data are published by State for 2008. Summary data are presented for each State for 2004 to 2008. The Natural Gas Annual 2008 Summary Highlights provides an overview of the supply and disposition of natural gas in 2008 and is intended as a supplement to the Natural Gas Annual 2008. Natural Gas Annual --- Full report in PDF (5 MB) Special Files --- All CSV files contained in a self-extracting executable file. Respondent/Company Level Natural Gas Data Files Annual Natural and Supplemental Gas Supply and Disposition Company level data (1996 to 2008) as reported on Form EIA-176 are provided in the EIA-176 Query System and selected data files. EIA-191A Field Level Underground Natural Gas Storage Data: Detailed annual data (2005 to 2008) of storage field capacity, field type, and maximum deliverability as of December 31st of the report year, as reported by operators of all U.S. underground natural gas storage fields.

431

Nutrient pulsing as a regulator of phytoplankton abundance and community composition in Galveston Bay, Texas  

Science Journals Connector (OSTI)

Galveston Bay, Texas, is a large shallow estuary with a watershed that includes 60% of the major industrial facilities of Texas. However, the system exhibits low to moderate (2–20 ?g l?1) microalgal biomass with sporadic phytoplankton blooms. Both nitrogen (N) and phosphate (P) limitation of phytoplankton growth have been proposed for the estuary. However, shifts between N and P limitation of algae growth may occur due to annual fluctuations in nutrient concentrations. The primary goal of this work was to determine the primary limiting nutrient for phytoplankton in Galveston Bay. Nutrient addition bioassays were used to assess short-term (1–2 days) phytoplankton responses (both biomass and community composition) to potentially limiting nutrients. The experimental bioassays were conducted over an annual cycle using natural water collected from the center to lower part of the estuary. Total phytoplankton biomass increased in the nitrate (10 ?M) additions in 11 of the 13 bioassays, but no significant increases were detected in the phosphate (3 ?M)-only additions. Bioassay results suggest that the phytoplankton community was usually not phosphate limited. All major groups increased in biomass following nitrate additions but diatoms increased in biomass at a faster rate than other groups, shifting the community composition toward higher relative abundance of diatoms. The results of this study suggest that pulsed N input events preferentially favor increases in diatom biomass in this estuary. The broader implications of this study are that N pulsing events, primarily due to river discharge, play an important role in structuring the phytoplankton community in the Galveston Bay estuary.

Erla B. Örnólfsdóttir; S.Elizabeth Lumsden; James L. Pinckney

2004-01-01T23:59:59.000Z

432

The Basics of Underground Natural Gas Storage  

Gasoline and Diesel Fuel Update (EIA)

Analysis > The Basics of Underground Natural Gas Storage Analysis > The Basics of Underground Natural Gas Storage The Basics of Underground Natural Gas Storage Latest update: August 2004 Printer-Friendly Version Natural gas-a colorless, odorless, gaseous hydrocarbon-may be stored in a number of different ways. It is most commonly held in inventory underground under pressure in three types of facilities. These are: (1) depleted reservoirs in oil and/or gas fields, (2) aquifers, and (3) salt cavern formations. (Natural gas is also stored in liquid form in above-ground tanks. A discussion of liquefied natural gas (LNG) is beyond the scope of this report. For more information about LNG, please see the EIA report, The Global Liquefied Natural Gas Market: Status & Outlook.) Each storage type has its own physical characteristics (porosity, permeability, retention capability) and economics (site preparation and maintenance costs, deliverability rates, and cycling capability), which govern its suitability to particular applications. Two of the most important characteristics of an underground storage reservoir are its capacity to hold natural gas for future use and the rate at which gas inventory can be withdrawn-its deliverability rate (see Storage Measures, below, for key definitions).

433

EIA - Natural Gas Consumption Data & Analysis  

Gasoline and Diesel Fuel Update (EIA)

Consumption Consumption Consumption by End Use U.S. and State consumption by lease and plant, pipeline, and delivered to consumers by sector (monthly, annual). Number of Consumers Number of sales and transported consumers for residential, commercial, and industrial sectors by State (monthly, annual). State Shares of U.S. Deliveries By sector and total consumption (annual). Delivered for the Account of Others Commercial, industrial and electric utility deliveries; percentage of total deliveries by State (annual). Heat Content of Natural Gas Consumed Btu per cubic foot of natural gas delivered to consumers by State (annual) and other components of consumption for U.S. (annual). Natural Gas Weekly Update Analysis of current price, supply, and storage data; and a weather snapshot.

434

The Solar Helium Abundance in the Outer Corona Determined from Observations with SUMER/SOHO  

E-Print Network (OSTI)

At altitudes of about 1.05 solar radii or more, the corona above quiet solar regions becomes essentially isothermal. This obviates many of the difficulties associated with the inverse problem of determining emission measure distributions, and allows for fairly straightforward relative element abundance measurements. We present new values for the He abundance. The first is based on a reanalysis of the He/O ratio studied previously using data acquired by SUMER. A more thorough evaluation of the atomic physics for He II, including a detailed treatment of radiative recombination, increases the predicted emission in the He II Balmer series compared to earlier analyses. We use a recently revised value of the O abundance to derive an He/H abundance ratio of 0.038, (mass fraction, Y=0.13), with an error of ~17% coming mainly from the O abundance uncertainty. We demonstrate that this result may be affected by gravitational settling of O relative to He. We also derive an abundance for He by direct comparison to emission lines of the H I Lyman series, with the result He/H =0.052 +/- 0.005 (Y=0.17), a value similar to He abundances determined in the slow speed solar wind.

J. M. Laming; U. Feldman

2000-08-28T23:59:59.000Z

435

Chemical Constraints on the Water and Total Oxygen Abundances in the Deep Atmosphere of Saturn  

E-Print Network (OSTI)

Thermochemical equilibrium and kinetic calculations for the trace gases CO, PH3, and SiH4 give three independent constraints on the water and total oxygen abundances of Saturn's deep atmosphere. A lower limit to the water abundance of H2O/H2 > 1.7 x 10^-3 is given by CO chemistry while an upper limit of H2O/H2 < 5.5 x 10^-3 is given by PH3 chemistry. A combination of the CO and PH3 constraints indicates a water enrichment on Saturn of 1.9 to 6.1 times the solar system abundance (H2O/H2 = 8.96 x 10^-4). The total oxygen abundance must be at least 1.7 times the solar system abundance (O/H2 = 1.16 x 10^-3) in order for the SiH4 to remain below a detection limit of SiH4/H2 < 2 x 10^-10. A combination of the CO, PH3, and SiH4 constraints suggests that the total oxygen abundance on Saturn is 3.2 to 6.4 times the solar system abundance. Our results indicate that oxygen on Saturn is less enriched than other heavy elements (such as C and P) relative to a solar system composition. This work was supported by NASA NAG5-11958.

Channon Visscher; Bruce Fegley Jr

2005-01-07T23:59:59.000Z

436

On the maximum value of the cosmic abundance of oxygen and the oxygen yield  

E-Print Network (OSTI)

We search for the maximum oxygen abundance in spiral galaxies. Because this maximum value is expected to occur in the centers of the most luminous galaxies, we have constructed the luminosity - central metallicity diagram for spiral galaxies, based on a large compilation of existing data on oxygen abundances of HII regions in spiral galaxies. We found that this diagram shows a plateau at high luminosities (-22.3 oxygen abundance 12+log(O/H) ~ 8.87. This provides strong evidence that the oxygen abundance in the centers of the most luminous metal-rich galaxies reaches the maximum attainable value of oxygen abundance. Since some fraction of the oxygen (about 0.08 dex) is expected to be locked into dust grains, the maximum value of the true gas+dust oxygen abundance in spiral galaxies is 12+log(O/H) ~ 8.95. This value is a factor of ~ 2 higher than the recently estimated solar value. Based on the derived maximum oxygen abundance in galaxies, we found the oxygen yield to be about 0.0035, depending on the fraction of oxygen incorporated into dust grains.

L. S. Pilyugin; T. X. Thuan; J. M. Vilchez

2007-01-11T23:59:59.000Z

437

Nature: Earth's Atmosphere and Beyond  

Science Journals Connector (OSTI)

Nature: Earth's Atmosphere and Beyond ... The column summarizes research articles from Nature that report on anthropogenic activities and natural phenomena that influence the chemical composition of Earth's atmosphere. ...

Sabine Heinhorst; Gordon Cannon

2003-10-01T23:59:59.000Z

438

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

2, 2011 at 2:00 P.M. 2, 2011 at 2:00 P.M. Next Release: Thursday, May 19, 2011 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, May 11, 2011) Natural gas prices fell across the board as oil prices dropped steeply along with most other major commodities. At the Henry Hub, the natural gas spot price fell 36 cents from $4.59 per million Btu (MMBtu) on Wednesday, May 4, to $4.23 per MMBtu on Wednesday, May 11. At the New York Mercantile Exchange, the price of the near-month natural gas contract (June 2011) dropped almost 9 percent, falling from $4.577 per MMBtu last Wednesday to $4.181 yesterday. Working natural gas in storage rose by 70 billion cubic feet (Bcf) to 1,827 Bcf, according to EIAÂ’s Weekly Natural Gas Storage Report.

439

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

2, 2010 at 2:00 P.M. 2, 2010 at 2:00 P.M. Next Release: Thursday, July 29, 2010 Overview Prices Storage Other Market Trends Natural Gas Transportation Update Overview (For the Week Ending Wednesday, July 21, 2010) Natural gas prices rose across market locations in the lower 48 States during the report week. The Henry Hub natural gas spot price rose 31 cents, or 7 percent, during the week, averaging $4.70 per million Btu (MMBtu) yesterday, July 21. At the New York Mercantile Exchange (NYMEX), the price of the August 2010 natural gas futures contract for delivery at the Henry Hub rose about 21 cents, or 5 percent, ending the report week at $4.513 per MMBtu. Working natural gas in storage increased to 2,891 billion cubic feet (Bcf) as of Friday, July 16, according to EIAÂ’s Weekly Natural Gas Storage

440

Thermodynamic, Energy Efficiency, and Power Density Analysis of Reverse Electrodialysis Power Generation with Natural Salinity Gradients  

Science Journals Connector (OSTI)

Thermodynamic, Energy Efficiency, and Power Density Analysis of Reverse Electrodialysis Power Generation with Natural Salinity Gradients ... solns. of different salinities. ... River mouths are potentially abundant locations for the exploitation of the clean and renewable salinity gradient energy (SGE) as here perpetually fresh water mixes with saline seawater. ...

Ngai Yin Yip; David A. Vermaas; Kitty Nijmeijer; Menachem Elimelech

2014-04-03T23:59:59.000Z

Note: This page contains sample records for the topic "number natural abundance" 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.


441

,"Colorado Natural Gas Prices"  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","Colorado Natural Gas Prices",8,"Monthly","112014","1151989" ,"Release Date:","1302015"...

442

,"California Natural Gas Summary"  

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

1982" ,"Data 5","Underground Storage",4,"Annual",2013,"6301967" ,"Data 6","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 7","Consumption",11,"Annual",2013,...

443

,"Maryland Natural Gas Summary"  

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

1999" ,"Data 4","Underground Storage",4,"Annual",2013,"6301967" ,"Data 5","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 6","Consumption",10,"Annual",2013,...

444

,"Georgia Natural Gas Summary"  

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

1999" ,"Data 3","Underground Storage",3,"Annual",1975,"6301974" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 5","Consumption",8,"Annual",2013,"...

445

,"Massachusetts Natural Gas Summary"  

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

1982" ,"Data 3","Underground Storage",3,"Annual",1975,"6301967" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 5","Consumption",8,"Annual",2013,"...

446

,"Oregon Natural Gas Summary"  

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

1979" ,"Data 3","Underground Storage",4,"Annual",2013,"6301973" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 5","Consumption",10,"Annual",2013,...

447

,"Texas Natural Gas Summary"  

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

1982" ,"Data 5","Underground Storage",4,"Annual",2013,"6301967" ,"Data 6","Liquefied Natural Gas Storage",1,"Annual",2013,"6302012" ,"Data 7","Consumption",11,"Annual",2013,...

448

,"Washington Natural Gas Summary"  

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

1982" ,"Data 3","Underground Storage",4,"Annual",2013,"6301967" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 5","Consumption",9,"Annual",2013,"...

449

,"Nebraska Natural Gas Summary"  

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

1967" ,"Data 3","Underground Storage",4,"Annual",2013,"6301967" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 5","Consumption",11,"Annual",2013,...

450

,"Pennsylvania Natural Gas Summary"  

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

1967" ,"Data 4","Underground Storage",4,"Annual",2013,"6301967" ,"Data 5","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 6","Consumption",11,"Annual",2013,...

451

,"Alaska Natural Gas Summary"  

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

1982" ,"Data 5","Underground Storage",6,"Annual",2013,"6301973" ,"Data 6","Liquefied Natural Gas Storage",3,"Annual",2013,"6301969" ,"Data 7","Consumption",11,"Annual",2013,...

452

,"Maine Natural Gas Summary"  

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

1967" ,"Data 2","Imports and Exports",2,"Annual",2013,"6301982" ,"Data 3","Liquefied Natural Gas Storage",3,"Annual",2013,"6301981" ,"Data 4","Consumption",8,"Annual",2013,"...

453

,"Minnesota Natural Gas Summary"  

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

1982" ,"Data 3","Underground Storage",4,"Annual",2013,"6301973" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 5","Consumption",8,"Annual",2013,"...

454

,"Idaho Natural Gas Summary"  

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

1982" ,"Data 3","Underground Storage",2,"Annual",1975,"6301974" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2013,"6301981" ,"Data 5","Consumption",9,"Annual",2013,"...

455

,"Wisconsin Natural Gas Summary"  

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

1967" ,"Data 2","Underground Storage",3,"Annual",1975,"6301973" ,"Data 3","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 4","Consumption",8,"Annual",2013,"...

456

,"Louisiana Natural Gas Summary"  

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

1982" ,"Data 5","Underground Storage",4,"Annual",2013,"6301967" ,"Data 6","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 7","Consumption",11,"Annual",2013,...

457

,"Delaware Natural Gas Summary"  

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

1967" ,"Data 2","Underground Storage",3,"Annual",1975,"6301967" ,"Data 3","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 4","Consumption",9,"Annual",2013,"...

458

,"Colorado Natural Gas Summary"  

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

1967" ,"Data 4","Underground Storage",4,"Annual",2013,"6301967" ,"Data 5","Liquefied Natural Gas Storage",2,"Annual",2013,"6301980" ,"Data 6","Consumption",11,"Annual",2013,...

459

,"Tennessee Natural Gas Summary"  

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

1967" ,"Data 3","Underground Storage",4,"Annual",2013,"6301968" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 5","Consumption",11,"Annual",2013,...

460

,"Arkansas Natural Gas Summary"  

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

1967" ,"Data 4","Underground Storage",4,"Annual",2013,"6301967" ,"Data 5","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 6","Consumption",11,"Annual",2013,...

Note: This page contains sample records for the topic "number natural abundance" 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.


461

,"Nevada Natural Gas Summary"  

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

301967" ,"Data 2","Production",11,"Annual",2013,"6301991" ,"Data 3","Liquefied Natural Gas Storage",3,"Annual",2013,"6301982" ,"Data 4","Consumption",10,"Annual",2013,...

462

,"Connecticut Natural Gas Summary"  

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

1967" ,"Data 2","Underground Storage",3,"Annual",1996,"6301973" ,"Data 3","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 4","Consumption",8,"Annual",2013,"...

463

,"Virginia Natural Gas Summary"  

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

1967" ,"Data 4","Underground Storage",4,"Annual",2013,"6301967" ,"Data 5","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 6","Consumption",10,"Annual",2013,...

464

,"Alabama Natural Gas Summary"  

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

1967" ,"Data 4","Underground Storage",4,"Annual",2013,"6301968" ,"Data 5","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 6","Consumption",11,"Annual",2013,...

465

,"Indiana Natural Gas Summary"  

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

1967" ,"Data 3","Underground Storage",4,"Annual",2013,"6301967" ,"Data 4","Liquefied Natural Gas Storage",3,"Annual",2013,"6301980" ,"Data 5","Consumption",10,"Annual",2013,...

466

Natural Resources Specialist  

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

(See Frequently Asked Questions for more information). Where would I be working ? Western Area Power Administration, Corporate Services Office, Office of the Chief Operating Officer, Natural...

467

Assessment in natural sciences.  

E-Print Network (OSTI)

??This research study focusses on assessment in the Natural Sciences learning area in grades 8 and 9. The aspect under focus is the extent to… (more)

Singh, Suresh Kamar

2009-01-01T23:59:59.000Z

468

Unconventional Natural Gas  

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

(NETL) Anthony Zammerilli General Engineer Strategic Center for Natural Gas and Oil Energy Sector Planning and Analysis (ESPA) Robert C. Murray, Thomas Davis, and James...

469

Natural gas annual 1997  

SciTech Connect

The Natural Gas Annual provides information on the supply and disposition of natural gas to a wide audience including industry, consumers, Federal and State agencies, and educational institutions. The 1997 data are presented in a sequence that follows natural gas (including supplemental supplies) from its production to its end use. This is followed by tables summarizing natural gas supply and disposition from 1993 to 1997 for each Census Division and each State. Annual historical data are shown at the national level. 27 figs., 109 tabs.

NONE

1998-10-01T23:59:59.000Z

470

,"California Natural Gas Prices"  

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

Name","Description"," Of Series","Frequency","Latest Data for" ,"Data 1","California Natural Gas Prices",13,"Annual",2013,"6301967" ,"Release Date:","10312014"...

471

EIA - Natural Gas Publications  

Gasoline and Diesel Fuel Update (EIA)

data collected on Form EIA-914 (Monthly Natural Gas Production Report) for Federal Offshore Gulf of Mexico, Texas, Louisiana, New Mexico, Oklahoma, Texas, Wyoming, Other States...

472

NETL: Natural Gas Resources  

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

Resources Significant volumes of natural gas can also be produced from tight (low permeability) sandstone reservoirs and coal seams, both unconventional reservoir rocks. NETL...

473

Natural Gas Weekly Update  

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

imbalances. Northern Natural Gas Company declared a force majeure after an unplanned repair issue at the Spearman Compressor Station in Ochiltree County, Texas, on Friday,...

474

Natural Gas Weekly Update  

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

in Gwinville, Mississippi. The pipeline company has isolated the affected section of pipeline and taken it out of service. Southern Natural intends to prepare a plan for...

475

Natural Cooling Retrofit  

E-Print Network (OSTI)

of the most important design considerations for any method of Natural Cool ing is the chil led water temperature range selected for use during Natural Cool ing. Figure VI shows that for a hypo thetical Chicago plant, the hours of operation for a Natural..." system on the Natural Cool ing cycle. As the pressures and flow rates of the condenser and chil led water systems are seldom the same, the designer must pay careful attention to the cross over system design to ensure harmonious operations on both...

Fenster, L. C.; Grantier, A. J.

1981-01-01T23:59:59.000Z

476

MIMICKING NATURAL PHOTOSYNTHESIS  

Science Journals Connector (OSTI)

MIMICKING NATURAL PHOTOSYNTHESIS ... O2 Evolution from the Manganese?Oxo Cubane Core Mn4O46+:? A Molecular Mimic of the Photosynthetic Water Oxidation Enzyme? ...

MICHAEL FREEMANTLE

1998-10-26T23:59:59.000Z

477

Document ID Number: RL-721  

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

Document ID Number: Document ID Number: RL-721 REV 4 NEPA REVIEW SCREENING FORM DOE/CX-00066 I. Project Title: Nesting Bird Deterrent Study at the 241-C Tank Farm CX B3.8, "Outdoor Terrestrial Ecological and Environmental Research" II. Project Description and Location (including Time Period over which proposed action will occur and Project Dimensions - e.g., acres displaced/disturbed, excavation length/depth, area/location/number of buildings, etc.): Washington River Protection Solutions LLC (WRPS) will perform an outdoor, terrestrial ecological research study to attempt to control and deter nesting birds at the 241-C Tank Farm. This will be a preventative study to test possible methods for controlling &/or minimizing the presence and impacts of nesting birds inside the tank farm. A nesting bird

478

On rings of structural numbers  

E-Print Network (OSTI)

structural numbers over the set X, and let B(X) have the operations defined above with equality also as before. Theorem I. l. If X is any set, then B(X) is a commutative ring with identity. Proof. The structural number 0 is the additive identity element... with identity g. Definition I. 7. If A, B e S(X) then A'B = (P U q ( p e A, q e B, p Il q = &f and p U q can be formed in an odd number of ways). ~E1 t. 4. L t A = (( . b), (bj. 7 )) 4 B = ((b, c), (b), (a)) be in S(X) for some X. Then AD B = {{b, a), {a...

Powell, Wayne Bruce

2012-06-07T23:59:59.000Z

479

EVOLUTION OF THE RELATIONSHIPS BETWEEN HELIUM ABUNDANCE, MINOR ION CHARGE STATE, AND SOLAR WIND SPEED OVER THE SOLAR CYCLE  

SciTech Connect

The changing relationships between solar wind speed, helium abundance, and minor ion charge state are examined over solar cycle 23. Observations of the abundance of helium relative to hydrogen (A{sub He} {identical_to} 100 Multiplication-Sign n{sub He}/n{sub H}) by the Wind spacecraft are used to examine the dependence of A{sub He} on solar wind speed and solar activity between 1994 and 2010. This work updates an earlier study of A{sub He} from 1994 to 2004 to include the recent extreme solar minimum and broadly confirms our previous result that A{sub He} in slow wind is strongly correlated with sunspot number, reaching its lowest values in each solar minima. During the last minimum, as sunspot numbers reached their lowest levels in recent history, A{sub He} continued to decrease, falling to half the levels observed in slow wind during the previous minimum and, for the first time observed, decreasing even in the fastest solar wind. We have also extended our previous analysis by adding measurements of the mean carbon and oxygen charge states observed with the Advanced Composition Explorer spacecraft since 1998. We find that as solar activity decreased, the mean charge states of oxygen and carbon for solar wind of a given speed also fell, implying that the wind was formed in cooler regions in the corona during the recent solar minimum. The physical processes in the coronal responsible for establishing the mean charge state and speed of the solar wind have evolved with solar activity and time.

Kasper, J. C.; Stevens, M. L.; Korreck, K. E.; Maruca, B. A.; Kiefer, K. K. [Harvard-Smithsonian Center for Astrophysics, Cambridge, MA 02138 (United States); Schwadron, N. A. [Institute for the Study of Earth, Oceans and Space, University of New Hampshire, Durham, NH 03824 (United States); Lepri, S. T. [Department of Atmospheric, Oceanic and Space Studies, University of Michigan, Ann Arbor, MI 48109 (United States)

2012-02-01T23:59:59.000Z

480

Warner College of Natural Resources Warner College of Natural  

E-Print Network (OSTI)

, and scientific investigation of renewable and nonrenewable natural resources. Programs include the study of everyWarner College of Natural Resources Warner College of Natural Resources Office in Natural Resources, and Conservation Biology Forestry Geology Natural Resource Recreation and Tourism Natural Resources Management

Collett Jr., Jeffrey L.

Note: This page contains sample records for the topic "number natural abundance" 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.


481

Natural Gas Weekly Update, Printer-Friendly Version  

Gasoline and Diesel Fuel Update (EIA)

the report week at 80.30 per barrel, or 13.84 per MMBtu. The number of natural gas rotary rigs rose by 3 to 728, according to data Baker Hughes Incorporated released on...

482

EIA - Natural Gas Storage Data & Analysis  

Gasoline and Diesel Fuel Update (EIA)

Storage Storage Weekly Working Gas in Underground Storage U.S. Natural gas inventories held in underground storage facilities by East, West, and Producing regions (weekly). Underground Storage - All Operators Total storage by base gas and working gas, and storage activity by State (monthly, annual). Underground Storage by Type U.S. storage and storage activity by all operators, salt cavern fields and nonsalt cavern (monthly, annual). Underground Storage Capacity Storage capacity, working gas capacity, and number of active fields for salt caverns, aquifers, and depleted fields by State (monthly, annual). Liquefied Natural Gas Additions to and Withdrawals from Storage By State (annual). Weekly Natural Gas Storage Report Estimates of natural gas in underground storage for the U.S. and three regions of the U.S.

483

Fact #816: February 10, 2014 Natural Gas Refueling Stations Grow Over the Last Ten Years  

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

In 2003 there were 1,097 natural gas refueling stations nationwide. By 2013, that number increased by about 25% to a total of 1,374 natural gas refueling stations. In 2003, there were six states...

484

nAture methods | VOL.10 NO.7 | JULY2013 | 647 single-stranded oligonucleotides are important as research  

E-Print Network (OSTI)

relative to what biological systems produce. the number of errors in synthetic dnA increases- parison to what is produced in nature3. The number of errors in synthetic DNA increases with the number

Cai, Long

485

Response: Issue Numbers and Librarianship  

Science Journals Connector (OSTI)

...some time. Put back the issue number. ALISON BAKER Librawy Jackson Laboratot), Bar...passage in which he supposes some unusually wise ape-like animal to have first thought...the approving nods and kindly grunts ofmy wise and most respected chief. And now I feel...

DANIEL E. KOSHLAND; JR.

1986-05-23T23:59:59.000Z

486

Natural Gas Annual 2010 (NGA) - With Data for 2010  

Gasoline and Diesel Fuel Update (EIA)

Analysis & Projections Analysis & Projections ‹ See All Natural Gas Reports Natural Gas Annual With Data for 2010 | Release Date: December 29, 2011 | Next Release: December 29, 2012 | full report Data Tablesall tables Overview 1 Summary Statistics for Natural Gas in the United States PDF CSV 2 Natural Gas Production, Transmission, and Consumption by State PDF CSV Supplies 3 Gross Withdrawals and Marketed Production of Natural Gas by State and the Gulf of Mexico PDF CSV 4 Offshore Gross Withdrawals of Natural Gas by State and the Gulf of Mexico PDF CSV 5 Number of Producing Gas Wells by State and the Gulf of Mexico PDF CSV 6 Wellhead Value and Marketed Production of Natural Gas, and by State PDF CSV 7 Natural Gas Processed, Liquids Extracted, and Estimated Extraction Loss by State PDF CSV

487

FEDERAL RESERVE BANK OF DALLASWhat Drives Natural Gas Prices?  

E-Print Network (OSTI)

Abstract: For many years, fuel switching between natural gas and residual fuel oil kept natural gas prices closely aligned with those for crude oil. More recently, however, the number of U.S. facilities able to switch between natural gas and residual fuel oil has declined, and over the past five years, U.S. natural gas prices have been on an upward trend with crude oil prices but with considerable independent movement. Natural gas market analysts generally emphasize weather and inventories as drivers of natural gas prices. Using an error-correction model, we show that when these and other additional factors are taken into account, movements in crude oil prices have a prominent role in shaping natural gas prices. Our findings imply a continuum of prices at which natural gas and petroleum products are substitutes.

Stephen P. A. Brown; Mine K. Yücel; Stephen P. A. Brown; Mine K. Yücel

2007-01-01T23:59:59.000Z

488

Natural Gas Weekly Update  

Gasoline and Diesel Fuel Update (EIA)

Impact of Interruptible Natural Gas Service A Snapshot of California Natural Gas Market: Status and Outlook EIA's Testimony on Natural Gas Supply and Demand Residential Natural Gas Price Brochure Status of Natural Gas Pipeline System Capacity Previous Issues of Natural Gas Weekly Update Natural Gas Homepage Overview Net additions to storage during the fourth week of April were estimated to have been over 100 Bcf-a record high level for the first month of the refill season. Compared to last year when only 36 Bcf or 1.2 Bcf per day were added to stocks in April, this year the industry appears to be taking advantage of the reduction in demand that typically occurs in April, the first shoulder month of the year, and the recent price declines. After beginning the week down, spot prices at the Henry Hub trended down most days last week to end trading on Friday at $4.49 per MMBtu-the lowest price since early November. On the NYMEX futures market, the near-month (June) contract also moved down most days and ended last week at $4.490-down $0.377 from the previous Friday. Some-early summer high temperatures last week in the Northeast and winter-like weather in the Rockies (See Temperature Map) (See Deviation from Normal Temperatures Map) appear to have had little impact on the natural gas markets as prices declined most days at most major locations.

489

,"Kansas Natural Gas Summary"  

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

S3","N3050KS3","N3010KS3","N3020KS3","N3035KS3","NA1570SKS3","N3045KS3" "Date","Kansas Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Kansas Natural Gas Pipeline...

490

,"Wyoming Natural Gas Summary"  

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

3","N3050WY3","N3010WY3","N3020WY3","N3035WY3","NA1570SWY3","N3045WY3" "Date","Wyoming Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Wyoming Natural Gas...

491

,"Montana Natural Gas Summary"  

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

3","N3050MT3","N3010MT3","N3020MT3","N3035MT3","NA1570SMT3","N3045MT3" "Date","Montana Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Montana Natural Gas Imports...

492

,"Oklahoma Natural Gas Summary"  

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

3","N3050OK3","N3010OK3","N3020OK3","N3035OK3","NA1570SOK3","N3045OK3" "Date","Oklahoma Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Oklahoma Natural Gas...

493

,"Michigan Natural Gas Summary"  

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

3","N3050MI3","N3010MI3","N3020MI3","N3035MI3","NA1570SMI3","N3045MI3" "Date","Michigan Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Michigan Natural Gas...

494

,"Vermont Natural Gas Summary"  

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

3","NA1480SVT3","N3050VT3","N3010VT3","N3020VT3","N3035VT3","N3045VT3" "Date","Vermont Natural Gas Imports Price (Dollars per Thousand Cubic Feet)","Vermont Natural Gas Pipeline...

495

,"Arizona Natural Gas Summary"  

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

3","N3050AZ3","N3010AZ3","N3020AZ3","N3035AZ3","NA1570SAZ3","N3045AZ3" "Date","Arizona Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Price of Arizona Natural...

496

,"Florida Natural Gas Summary"  

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

3","N3050FL3","N3010FL3","N3020FL3","N3035FL3","NA1570SFL3","N3045FL3" "Date","Florida Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Florida Natural Gas...

497

,"Kentucky Natural Gas Summary"  

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

3","N3050KY3","N3010KY3","N3020KY3","N3035KY3","NA1570SKY3","N3045KY3" "Date","Kentucky Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Kentucky Natural Gas...

498

,"Ohio Natural Gas Summary"  

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

SOH3","N3050OH3","N3010OH3","N3020OH3","N3035OH3","NA1570SOH3","N3045OH3" "Date","Ohio Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Ohio Natural Gas Pipeline...

499

,"Utah Natural Gas Summary"  

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

SUT3","N3050UT3","N3010UT3","N3020UT3","N3035UT3","NA1570SUT3","N3045UT3" "Date","Utah Natural Gas Wellhead Price (Dollars per Thousand Cubic Feet)","Utah Natural Gas Pipeline...

500

Natural Gas Infrastructure Modernization  

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

In order to help modernize the nation’s natural gas transmission and distribution systems and reduce methane emissions through common-sense standards, smart investments, and innovative research to advance the state of the art in natural gas system performance, the Department of Energy has launched several new initiatives and enhanced existing programs.