Powered by Deep Web Technologies
Note: This page contains sample records for the topic "field size mmboe" 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

Genesis field, Gulf of Mexico: Recognizing reservoir compartments on geologic and production time scales in deep-water reservoirs  

Science Journals Connector (OSTI)

...Factors for the Pleistocene Reservoirs of Genesis Field Reservoir EOD Reserves (MMBOE) Recovery Factor () Drive Mechanism Completions...49-63 Weak water drive 5 All completions are fracture packed. EOD environment of deposition. Table 2 Cumulative Production and...

Michael L. Sweet; Larry T. Sumpter

2

Field-size dependence of doses of therapeutic carbon beams  

SciTech Connect (OSTI)

To estimate the physical dose at the center of spread-out Bragg peaks (SOBP) for various conditions of the irradiation system, a semiempirical approach was applied. The dose at the center of the SOBP depends on the field size because of large-angle scattering particles in the water phantom. For a small field of 5x5 cm{sup 2}, the dose was reduced to 99.2%, 97.5%, and 96.5% of the dose used for the open field in the case of 290, 350, and 400 MeV/n carbon beams, respectively. Based on the three-Gaussian form of the lateral dose distributions of the carbon pencil beam, which has previously been shown to be effective for describing scattered carbon beams, we reconstructed the dose distributions of the SOBP beam. The reconstructed lateral dose distribution reproduced the measured lateral dose distributions very well. The field-size dependencies calculated using the reconstructed lateral dose distribution of the therapeutic carbon beam agreed with the measured dose dependency very well. The reconstructed beam was also used for irregularly shaped fields. The resultant dose distribution agreed with the measured dose distribution. The reconstructed beams were found to be applicable to the treatment-planning system.

Kusano, Yohsuke; Kanai, Tatsuaki; Yonai, Shunsuke; Komori, Masataka; Ikeda, Noritoshi; Tachikawa, Yuji; Ito, Atsushi; Uchida, Hirohisa [Tokai University Unified Graduate School, Graduate School of Science and Technology, 1117 Kitakaname, Hiratsuka, Kanagawa 259-1207, Japan and Accelerator Engineering Co., 2-13-1 Konakadai, Inage-ku, Chiba 263-0043 (Japan); Department of Accelerator Physics and Medical Physics, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba, Chiba 263-8555 (Japan); Medical Physics Research Group, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba, Chiba 263-8555 (Japan); Department of Accelerator Physics and Medical Physics, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba, Chiba 263-8555 (Japan); Accelerator Engineering Co., 2-13-1 Konakadai, Inage-ku, Chiba 263-0043 (Japan); Department of Energy Science and Engineering, School of Engineering, Tokai University, 1117 Kitakaname, Hiratsuka, Kanagawa 259-1292 (Japan)

2007-10-15T23:59:59.000Z

3

Thermodynamics and Finite size scaling in Scalar Field Theory  

E-Print Network [OSTI]

In this work we consider the 1-component real scalar $\\phi^4$ theory in 4 space-time dimensions on the lattice and investigate the finite size scaling of thermodynamic quantities to study whether the thermodynamic limit is attained. The results are obtained for the symmetric phase of the theory.

Debasish Banerjee; Saumen Datta; Sourendu Gupta

2008-12-05T23:59:59.000Z

4

Climate change impacts in multispecies systems: drought alters food web size structure in a field experiment  

Science Journals Connector (OSTI)

...multispecies systems: drought alters food web size structure in a field experiment Guy...intergenerational field manipulations of entire food webs are scarce, yet such approaches are essential...replicated field trial, to measure food web responses to simulated climate change...

2012-01-01T23:59:59.000Z

5

An Optimization Approach to the Design of Multi-Size Heliostat fields  

E-Print Network [OSTI]

May 28, 2014 ... Maximizing the efficiency of the plant, i.e., optimizing the energy generated per ... The numerical experiments show the advantages of combining ... Keywords: solar thermal power; multi-size heliostat field; greedy algorithm.

E. Carrizosa

2014-05-28T23:59:59.000Z

6

Size Analysis of Automobile Soot Particles Using Field-Flow Fractionation  

Science Journals Connector (OSTI)

Size Analysis of Automobile Soot Particles Using Field-Flow Fractionation ... The off-line method includes a cascade impactor (23) and an electric low-pressure impactor (19). ...

Won-suk Kim; Sun Hui Kim; Dai Woon Lee; Seungho Lee; Cheol Soo Lim; Jung Ho Ryu

2001-02-07T23:59:59.000Z

7

Observed oil and gas field size distributions: A consequence of the discovery process and prices of oil and gas  

Science Journals Connector (OSTI)

If observed oil and gas field size distributions are obtained ... should approximate that of the parent population of oil and gas fields. However, empirical evidence ... the observable size distributions change w...

Lawrence J. Drew; Emil D. Attanasi; John H. Schuenemeyer

1988-11-01T23:59:59.000Z

8

Single-Walled Carbon Nanotubes of Controlled Diameter and Bundle Size and Their Field Emission Properties  

E-Print Network [OSTI]

Single-Walled Carbon Nanotubes of Controlled Diameter and Bundle Size and Their Field Emission: June 8, 2005 Field emission studies were conducted on as-produced CoMoCAT single-walled carbon nanotube electron emitter. By adjusting the catalytic synthesis conditions, single-walled carbon nanotubes (SWNT

Resasco, Daniel

9

Offshore oil: Investigating production parameters of fields of varying size, location and water depth  

Science Journals Connector (OSTI)

Abstract This paper derives empirical estimates of field depletion level, depletion rate, decline rate and characteristic time intervals in offshore oil production based on a global field-by-field database containing 603 offshore oil fields. Statistical distributions as well as arithmetic and weighted averages of production parameters are derived for different categories of fields specified by size, location and water depth. A significant tendency of small fields having higher depletion and decline rates is found. Similarly, OECD countries generally have higher rates compared to non-OECD countries. Trends related to water depth are not clearly distinguishable and require additional investigation of time related aspects. Resulting spreads in derived parameter estimates are found to be well described by positively skewed probability distributions. Also, in line with theory, a strong correlation between depletion and decline rate is found. According to the study, the net share of global offshore production from smaller and deeper fields is increasing. A continuation of these trends would likely have implications for future aggregate offshore production behaviour, most notably, increasing global aggregate decline rates.

David Sällh; Henrik Wachtmeister; Xu Tang; Mikael Höök

2015-01-01T23:59:59.000Z

10

Self-consistent mean-field theory of size distribution narrowing during ramped temperature ion beam synthesis  

SciTech Connect (OSTI)

A simple mathematical argument explains a recently identified route for the ion beam synthesis of nanoclusters with a narrowed size distribution. The key idea is that growth conditions for which the average nanocluster size is increasing rapidly can lead to narrowed size distributions. Modeling candidate processes using a self-consistent, mean-field theory shows that normalized nanocluster size distributions with full-width at half-maximum of 17% of the average can be attained.

Mastandrea, J. P.; Sherburne, M. P.; Boswell-Koller, C. N.; Sawyer, C. A.; Guzman, J.; Bustillo, K. C.; Haller, E. E.; Chrzan, D. C. [Department of Materials Science and Engineering, University of California, Berkeley, California 94720 (United States); Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Ager, J. W. [Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

2013-12-21T23:59:59.000Z

11

72657Federal Register / Vol. 72, No. 245 / Friday, December 21, 2007 / Proposed Rules lease in million barrels of oil equivalent  

E-Print Network [OSTI]

in million barrels of oil equivalent (MMBOE): Water depth Minimum royalty sus- pension volume (MMBOE) (1) 200 of paragraph (b) are revised to read as follows: § 260.124 How will royalty suspension apply if MMS assigns establish a royalty suspension volume for a field as a result of an approved application for royalty relief

12

Farm Size in Relation to Market Outlets and Forward Contracts for Major Field Crops and Beef Cattle Texas Rollin Plains.  

E-Print Network [OSTI]

AG-"PAMP H l ET B-1187C February 1978 Farm Size in Relation to Market Outlets and Forward Contracts for 1 'II Major Field Crops and Beef Cattle Texas Rolling Plains The Texas Agricultural Experiment Station? Neville P. Clarke, Director... AND FORWARD CONTRACTS FOR MAJOR FIELD CROPS AND BEEF CATTLE TEXAS ROLLING PLAINS by Donald S. Moore and J. Rod Martin Texas Agricultural Experiment Station Texas A&M University College Station, Texas in cooperation with the National Economic Analysis...

Moore, Donald S.; Martin, J. Rod

1978-01-01T23:59:59.000Z

13

An Optimization Approach to the Design of Multi-Size Heliostat fields  

E-Print Network [OSTI]

May 28, 2014 ... Power Tower system with heliostats of different sizes is addressed. ... energy is transferred to a heat transfer fluid to produce electricity through ...

2014-05-28T23:59:59.000Z

14

Advances in surface magnetic field measurement technique for detection and sizing of surface-breaking cracks in offshore structures  

SciTech Connect (OSTI)

In detecting and sizing cracks in metal structures, the two common techniques of eddy-current and potential-drop, suffer from a number of problems which may not be acceptable in offshore environments. This paper describes recent advances in the surface magnetic field measurement (SMFM) technique as an alternative method for integrity evaluation of offshore metal structures.

Mirshekar-Syahkal, D. [Univ. of Essex, Colchester (United Kingdom); Sadeghi, S.H.H. [Amirkabir Univ., Tehran (Iran, Islamic Republic of)

1994-12-31T23:59:59.000Z

15

For economic energy, we need: tritium, large size to obtain hot fusing plasma; high fields and large currents  

E-Print Network [OSTI]

-D, and not optimised for neutron production) Fusion for ENERGY is difficult: #12;22 The smaller scale (and possible11 For economic energy, we need: tritium, large size to obtain hot fusing plasma; high fields and large currents high running costs, large stored energy (beware disruptions, ELMs) Fusion for NEUTRONS

16

Towards a better understanding of dielectric barrier discharges in ferroelectrets: Paschen breakdown fields in micrometer sized voids  

SciTech Connect (OSTI)

Charged cellular polypropylene foams (i.e., ferro- or piezoelectrets) demonstrate high piezoelectric activity upon being electrically charged. When an external electric field is applied, dielectric barrier discharges (DBDs) occur, resulting in a separation of charges which are subsequently deposited on dielectric surfaces of internal micrometer sized voids. This deposited space charge is responsible for the piezoelectric activity of the material. Previous studies have indicated charging fields larger than predicted by Townsend's model of Paschen breakdown applied to a multilayered electromechanical model; a discrepancy which prompted the present study. The actual breakdown fields for micrometer sized voids were determined by constructing single cell voids using polypropylene spacers with heights ranging from 8 to 75??m, “sandwiched” between two polypropylene dielectric barriers and glass slides with semi-transparent electrodes. Subsequently, a bipolar triangular charging waveform with a peak voltage of 6?kV was applied to the samples. The breakdown fields were determined by monitoring the emission of light due to the onset of DBDs using an electron multiplying CCD camera. The breakdown fields at absolute pressures from 101 to 251?kPa were found to be in good agreement with the standard Paschen curves. Additionally, the magnitude of the light emission was found to scale linearly with the amount of gas, i.e., the height of the voids. Emissions were homogeneous over the observed regions of the voids for voids with heights of 25??m or less and increasingly inhomogeneous for void heights greater than 40??m at high electric fields.

Harris, Scott, E-mail: harri4s@cmich.edu [Department of Physics and Science of Advanced Materials Program, Central Michigan University, Mount Pleasant, Michigan 48859 (United States); Applied Condensed-Matter Physics, Department of Physics and Astronomy, University of Potsdam, Karl-Liebknecht-Str. 24-25, 14476 Potsdam-Golm (Germany); Mellinger, Axel, E-mail: axel.mellinger@cmich.edu [Department of Physics and Science of Advanced Materials Program, Central Michigan University, Mount Pleasant, Michigan 48859 (United States)

2014-04-28T23:59:59.000Z

17

Agricultural Chemical Movement through a Field-Size Watershed in Iowa:? Surface Hydrology and Nitrate Losses in Discharge  

Science Journals Connector (OSTI)

Agricultural Chemical Movement through a Field-Size Watershed in Iowa:? Surface Hydrology and Nitrate Losses in Discharge ... In this paper, we illustrate another aspect of the “water quality profile” conceptual model (4) for assessing impacts of farming systems using an analysis of the surface hydrology and nitrate distribution in surface runoff, headcut seepage, and basin drainage from a high relief landscape. ... Surface runoff resulting from snowmelt occurs whenever solar-radiated heat penetrates the snow and heats the soil surface beneath it. ...

Thomas R. Steinheimer; Kenwood D. Scoggin; Larry A. Kramer

1998-02-28T23:59:59.000Z

18

Farm Size in Relation to Market Outlets and Forward Contracts for Major Field Crops and Beef Cattle Texas Rollin Plains.  

E-Print Network [OSTI]

THE TEXAS AGRICULTURAL EXPERIMENT STATION / Neville P. Clarke, Director The Texas A&M University System 1 College Station, Texas Farm Size in Relation to Market Outlets and Fomd Contracts for Major Field Crops and Beef Cattle, B-1187 Texas.... One example of changing marketing channels is the use of contracts in marketing agricultural products, which has become more frequent in recent years. This study estimated the importance of the various types of first handler markets, including...

Moore, Donald S.; Martin, J. Rod

1978-01-01T23:59:59.000Z

19

Influence of compensator thickness, field size, and off-axis distance on the effective attenuation coefficient of a cerrobend compensator for intensity-modulated radiation therapy  

SciTech Connect (OSTI)

Intensity-modulated radiation therapy (IMRT) can be performed by using compensators. To make a compensator for an IMRT practice, it is required to calculate the effective attenuation coefficient (?{sub eff}) of its material, which is affected by various factors. We studied the effect of the variation of the most important factors on the calculation of the ?{sub eff} of the cerrobend compensator for 6-MV photon beams, including the field size, compensator thickness, and off-axis distance. Experimental measurements were carried out at 100 cm source-to-surface distance and 10 cm depth for the 6-MV photon beams of an Elekta linac using various field size, compensator thickness, and off-axis settings. The field sizes investigated ranged from 4 × 4 to 25 × 25 cm{sup 2} and the cerrobend compensator thicknesses from 0.5–6 cm. For a fixed compensator thickness, variation of the ?{sub eff} with the field size ranged from 3.7–6.8%, with the highest value attributed to the largest compensator thickness. At the reference field size of 10 × 10 cm{sup 2}, the ?{sub eff} varied by 16.5% when the compensator thickness was increased from 0.5–6 cm. However, the variation of the ?{sub eff} with the off-axis distance was only 0.99% at this field size, whereas for the largest field size, it was more significant. Our results indicated that the compensator thickness and field size have the most significant effect on the calculation of the compensator ?{sub eff} for the 6-MV photon beam. Therefore, it is recommended to consider these parameters when calculating the compensator thickness for an IMRT practice designed for these beams. The off-axis distance had a significant effect on the calculation of the ?{sub eff} only for the largest field size. Hence, it is recommended to consider the effect of this parameter only for field sizes larger than 25 × 25 cm{sup 2}.

Haghparast, Abbas [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Islamic Republic of Iran (Iran, Islamic Republic of); Hashemi, Bijan, E-mail: bhashemi@modares.ac.ir [Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Islamic Republic of Iran (Iran, Islamic Republic of); Eivazi, Mohammad Taghi [Department of Medical Physics, Faculty of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Islamic Republic of Iran (Iran, Islamic Republic of)

2013-04-01T23:59:59.000Z

20

Self-consistent field theory based molecular dynamics with linear system-size scaling  

SciTech Connect (OSTI)

We present an improved field-theoretic approach to the grand-canonical potential suitable for linear scaling molecular dynamics simulations using forces from self-consistent electronic structure calculations. It is based on an exact decomposition of the grand canonical potential for independent fermions and does neither rely on the ability to localize the orbitals nor that the Hamilton operator is well-conditioned. Hence, this scheme enables highly accurate all-electron linear scaling calculations even for metallic systems. The inherent energy drift of Born-Oppenheimer molecular dynamics simulations, arising from an incomplete convergence of the self-consistent field cycle, is circumvented by means of a properly modified Langevin equation. The predictive power of the present approach is illustrated using the example of liquid methane under extreme conditions.

Richters, Dorothee [Institute of Mathematics and Center for Computational Sciences, Johannes Gutenberg University Mainz, Staudinger Weg 9, D-55128 Mainz (Germany)] [Institute of Mathematics and Center for Computational Sciences, Johannes Gutenberg University Mainz, Staudinger Weg 9, D-55128 Mainz (Germany); Kühne, Thomas D., E-mail: kuehne@uni-mainz.de [Institute of Physical Chemistry and Center for Computational Sciences, Johannes Gutenberg University Mainz, Staudinger Weg 7, D-55128 Mainz (Germany); Technical and Macromolecular Chemistry, University of Paderborn, Warburger Str. 100, D-33098 Paderborn (Germany)

2014-04-07T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

SIZE BIAS AND DIFFERENTIAL LENSING OF STRONGLY LENSED, DUSTY GALAXIES IDENTIFIED IN WIDE-FIELD SURVEYS  

SciTech Connect (OSTI)

We address two selection effects that operate on samples of gravitationally lensed dusty galaxies identified in millimeter- and submillimeter-wavelength surveys. First, we point out the existence of a ''size bias'' in such samples: due to finite source effects, sources with higher observed fluxes are increasingly biased toward more compact objects. Second, we examine the effect of differential lensing in individual lens systems by modeling each source as a compact core embedded in an extended diffuse halo. Considering the ratio of magnifications in these two components, we find that at high overall magnifications, the compact component is amplified by a much larger factor than the diffuse component, but at intermediate magnifications ({approx}10) the probability of a larger magnification for the extended region is higher. Lens models determined from multi-frequency resolved imaging data are crucial to correct for this effect.

Hezaveh, Yashar D.; Holder, Gilbert P. [Department of Physics, McGill University, 3600 Rue University, Montreal, Quebec H3A 2T8 (Canada); Marrone, Daniel P. [Steward Observatory, University of Arizona, 933 North Cherry Avenue, Tucson, AZ 85721 (United States)

2012-12-10T23:59:59.000Z

22

EVOLUTION OF THE SIZES OF GALAXIES OVER 7 < z < 12 REVEALED BY THE 2012 HUBBLE ULTRA DEEP FIELD CAMPAIGN  

SciTech Connect (OSTI)

We analyze the redshift- and luminosity-dependent sizes of dropout galaxy candidates in the redshift range z ? 7-12 using deep images from the 2012 Hubble Ultra Deep Field (UDF12) campaign, which offers two advantages over that used in earlier work. First, we utilize the increased signal-to-noise ratio offered by the UDF12 imaging to provide improved measurements for known galaxies at z ? 6.5-8 in the HUDF. Second, because the UDF12 data have allowed the construction of the first robust galaxy sample in the HUDF at z > 8, we have been able to extend the measurement of average galaxy size out to higher redshifts. Restricting our measurements to sources detected at >15?, we confirm earlier indications that the average half-light radii of z ? 7-12 galaxies are extremely small, 0.3-0.4 kpc, comparable to the sizes of giant molecular associations in local star-forming galaxies. We also confirm that there is a clear trend of decreasing half-light radius with increasing redshift, and provide the first evidence that this trend continues beyond z ? 8. Modeling the evolution of the average half-light radius as a power law, ?(1 + z) {sup s}, we obtain a best-fit index of s=-1.30{sup +0.12}{sub -0.14} over z ? 4-12. A clear size-luminosity relation is evident in our dropout samples. This relation can be interpreted in terms of a constant surface density of star formation over a range in luminosity of 0.05-1.0 L{sub z=3}. The average star formation surface density in dropout galaxies is 2-3 orders of magnitude lower than that found in extreme starburst galaxies, but is comparable to that seen today in the centers of normal disk galaxies.

Ono, Yoshiaki; Ouchi, Masami [Institute for Cosmic Ray Research, The University of Tokyo, Kashiwa 277-8582 (Japan); Curtis-Lake, Emma; McLure, Ross J.; Dunlop, James S.; Bowler, Rebecca A. A.; Rogers, Alexander B.; Cirasuolo, Michele [Institute for Astronomy, University of Edinburgh, Royal Observatory, Edinburgh EH9 3HJ (United Kingdom); Schenker, Matthew A.; Ellis, Richard S. [Department of Astrophysics, California Institute of Technology, MS 249-17, Pasadena, CA 91125 (United States); Robertson, Brant E.; Schneider, Evan; Stark, Daniel P. [Department of Astronomy and Steward Observatory, University of Arizona, Tucson, AZ 85721 (United States); Koekemoer, Anton M. [Space Telescope Science Institute, Baltimore, MD 21218 (United States); Charlot, Stephane [UPMC-CNRS, UMR7095, Institut d'Astrophysique, F-75014 Paris (France); Shimasaku, Kazuhiro [Department of Astronomy, Graduate School of Science, The University of Tokyo, Tokyo 113-0033 (Japan); Furlanetto, Steven R., E-mail: ono@icrr.u-tokyo.ac.jp [Department of Physics and Astronomy, University of California, Los Angeles, CA 90095 (United States)

2013-11-10T23:59:59.000Z

23

Effect of Field Size and Length of Plantar Spur on Treatment Outcome in Radiation Therapy of Plantar Fasciitis: The Bigger the Better?  

SciTech Connect (OSTI)

Purpose: Radiation therapy is well established in the treatment of painful plantar fasciitis or heel spur. A retrospective analysis was conducted to investigate the effect of field definition on treatment outcome and to determine the impact of factors potentially involved. Methods and Materials: A review of treatment data of 250 patients (285 heels) with a mean follow-up time of 11 months showed that complete symptom remission occurred in 38%, partial remission in 32%, and no change in 19% (11% were lost to follow-up). Variables such as radiologic evidence of plantar spurs, their length, radiation dose, field size, age, sex, and onset of pain before administration of radiation therapy were investigated in univariate and multivariate regression analyses. Results: Treatment response depended upon age >53 years, length of heel spur ?6.5 mm (or no radiologic evidence of a heel spur), and onset of pain <12 months before radiation therapy. Patients with these clinical prerequisites stood a 93% chance of clinical response. Without these prerequisites, only 49% showed any impact. No influence of field size on treatment outcome became evident. Conclusion: Patients with short plantar heel spurs benefit from radiation therapy equally well as patients without any radiologic evidence. Moreover, smaller field sizes have the same positive effect as commonly used large field definitions covering the entire calcaneal bone. This leads to a recommendation of a considerable reduction of field size in future clinical practice.

Hermann, Robert Michael, E-mail: hermann@strahlentherapie-westerstede.com [Zentrum für Strahlentherapie und Radioonkologie, Bremen/Westerstede (Germany); Abteilung Strahlentherapie und Spezielle Onkologie, Medizinische Hochschule Hannover (Germany); Meyer, Andreas [Abteilung Strahlentherapie und Spezielle Onkologie, Medizinische Hochschule Hannover (Germany); Gemeinschaftspraxis für Strahlentherapie Hildesheim/Goslar (Germany); Becker, Alexandra [Zentrum für Strahlentherapie und Radioonkologie, Bremen/Westerstede (Germany); Schneider, Michael [Orthopaedic Centre for Musculoskeletal Research, University of Würzburg (Germany); Reible, Michael; Carl, Ulrich Martin [Zentrum für Strahlentherapie und Radioonkologie, Bremen/Westerstede (Germany); Christiansen, Hans [Abteilung Strahlentherapie und Spezielle Onkologie, Medizinische Hochschule Hannover (Germany); Nitsche, Mirko [Zentrum für Strahlentherapie und Radioonkologie, Bremen/Westerstede (Germany); Klinik für Strahlentherapie, Karl-Lennert-Krebscentrum, Universität Kiel (Germany)

2013-12-01T23:59:59.000Z

24

The effects of composition, temperature and sample size on the sintering of chem-prep high field varistors.  

SciTech Connect (OSTI)

The sintering behavior of Sandia chem-prep high field varistor materials was studied using techniques including in situ shrinkage measurements, optical and scanning electron microscopy and x-ray diffraction. A thorough literature review of phase behavior, sintering and microstructure in Bi{sub 2}O{sub 3}-ZnO varistor systems is included. The effects of Bi{sub 2}O{sub 3} content (from 0.25 to 0.56 mol%) and of sodium doping level (0 to 600 ppm) on the isothermal densification kinetics was determined between 650 and 825 C. At {ge} 750 C samples with {ge}0.41 mol% Bi{sub 2}O{sub 3} have very similar densification kinetics, whereas samples with {le}0.33 mol% begin to densify only after a period of hours at low temperatures. The effect of the sodium content was greatest at {approx}700 C for standard 0.56 mol% Bi{sub 2}O{sub 3} and was greater in samples with 0.30 mol% Bi{sub 2}O{sub 3} than for those with 0.56 mol%. Sintering experiments on samples of differing size and shape found that densification decreases and mass loss increases with increasing surface area to volume ratio. However, these two effects have different causes: the enhancement in densification as samples increase in size appears to be caused by a low oxygen internal atmosphere that develops whereas the mass loss is due to the evaporation of bismuth oxide. In situ XRD experiments showed that the bismuth is initially present as an oxycarbonate that transforms to metastable {beta}-Bi{sub 2}O{sub 3} by 400 C. At {approx}650 C, coincident with the onset of densification, the cubic binary phase, Bi{sub 38}ZnO{sub 58} forms and remains stable to >800 C, indicating that a eutectic liquid does not form during normal varistor sintering ({approx}730 C). Finally, the formation and morphology of bismuth oxide phase regions that form on the varistors surfaces during slow cooling were studied.

Garino, Terry J.

2007-09-01T23:59:59.000Z

25

Prototypical Single-Molecule Chemical-Field-Effect Transistor with Nanometer-Sized Gates F. Jackel,1  

E-Print Network [OSTI]

or break junctions [7,8]. Field effect transistors have been fabricated with carbon nanotubes [9 defects in carbon nanotube field effect tran- sistors [13]. Under ultrahigh vacuum (UHV) conditions and a voltage ramp with 100 equidistant points between ÿ1:5 and 1.5 V was run with the feedback loop switched

Peters, Achim

26

Sample size requirements for estimating effective dose from computed tomography using solid-state metal-oxide-semiconductor field-effect transistor dosimetry  

SciTech Connect (OSTI)

Purpose: Effective dose (ED) is a widely used metric for comparing ionizing radiation burden between different imaging modalities, scanners, and scan protocols. In computed tomography (CT), ED can be estimated by performing scans on an anthropomorphic phantom in which metal-oxide-semiconductor field-effect transistor (MOSFET) solid-state dosimeters have been placed to enable organ dose measurements. Here a statistical framework is established to determine the sample size (number of scans) needed for estimating ED to a desired precision and confidence, for a particular scanner and scan protocol, subject to practical limitations. Methods: The statistical scheme involves solving equations which minimize the sample size required for estimating ED to desired precision and confidence. It is subject to a constrained variation of the estimated ED and solved using the Lagrange multiplier method. The scheme incorporates measurement variation introduced both by MOSFET calibration, and by variation in MOSFET readings between repeated CT scans. Sample size requirements are illustrated on cardiac, chest, and abdomen–pelvis CT scans performed on a 320-row scanner and chest CT performed on a 16-row scanner. Results: Sample sizes for estimating ED vary considerably between scanners and protocols. Sample size increases as the required precision or confidence is higher and also as the anticipated ED is lower. For example, for a helical chest protocol, for 95% confidence and 5% precision for the ED, 30 measurements are required on the 320-row scanner and 11 on the 16-row scanner when the anticipated ED is 4 mSv; these sample sizes are 5 and 2, respectively, when the anticipated ED is 10 mSv. Conclusions: Applying the suggested scheme, it was found that even at modest sample sizes, it is feasible to estimate ED with high precision and a high degree of confidence. As CT technology develops enabling ED to be lowered, more MOSFET measurements are needed to estimate ED with the same precision and confidence.

Trattner, Sigal [Department of Medicine, Division of Cardiology, Columbia University Medical Center and New York-Presbyterian Hospital, New York, New York 10032 (United States)] [Department of Medicine, Division of Cardiology, Columbia University Medical Center and New York-Presbyterian Hospital, New York, New York 10032 (United States); Cheng, Bin [Department of Biostatistics, Columbia University Mailman School of Public Health, New York, New York 10032 (United States)] [Department of Biostatistics, Columbia University Mailman School of Public Health, New York, New York 10032 (United States); Pieniazek, Radoslaw L. [Center for Radiological Research, Columbia University Medical Center and New York-Presbyterian Hospital, New York, New York 10032 (United States)] [Center for Radiological Research, Columbia University Medical Center and New York-Presbyterian Hospital, New York, New York 10032 (United States); Hoffmann, Udo [Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114 (United States)] [Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts 02114 (United States); Douglas, Pamela S. [Department of Medicine, Division of Cardiology, Duke University, Durham, North Carolina 27715 (United States)] [Department of Medicine, Division of Cardiology, Duke University, Durham, North Carolina 27715 (United States); Einstein, Andrew J., E-mail: andrew.einstein@columbia.edu [Department of Medicine, Division of Cardiology, Columbia University Medical Center and New York-Presbyterian Hospital, New York, New York and Department of Radiology, Columbia University Medical Center and New York-Presbyterian Hospital, New York, New York (United States)

2014-04-15T23:59:59.000Z

27

Energy Landscape of the Finite-Size Mean-field 2-Spin Spherical Model and Topology Trivialization  

E-Print Network [OSTI]

Motivated by the recently observed phenomenon of topology trivialization of potential energy landscapes (PELs) for several statistical mechanics models, we perform a numerical study of the finite size $2$-spin spherical model using both numerical polynomial homotopy continuation and a reformulation via non-hermitian matrices. The continuation approach computes all of the complex stationary points of this model while the matrix approach computes the real stationary points. Using these methods, we compute the average number of stationary points while changing the topology of the PEL as well as the variance. Histograms of these stationary points are presented along with an analysis regarding the complex stationary points. This work connects topology trivialization to two different branches of mathematics: algebraic geometry and catastrophe theory, which is fertile ground for further interdisciplinary research.

Dhagash Mehta; Jonathan D. Hauenstein; Matthew Niemerg; Nicholas J. Simm; Daniel A. Stariolo

2014-09-29T23:59:59.000Z

28

field  

National Nuclear Security Administration (NNSA)

9%2A en Ten-Year Site Plans (TYSP) http:nnsa.energy.govaboutusouroperationsinfopsinfopstysp

field field-type-text field-field-page-name">

29

Integral Field Spectroscopy based H\\alpha\\ sizes of local Luminous and Ultraluminous Infrared Galaxies. A Direct Comparison with high-z Massive Star Forming Galaxies  

E-Print Network [OSTI]

Aims. We study the analogy between local U/LIRGs and high-z massive SFGs by comparing basic H{\\alpha} structural characteristics, like size, luminosity and Star Formation Rate (SFR) surface density, in an homogeneous way (i.e. same tracer and size definition, similar physical scales). Methods. We use Integral Field Spectroscopy based H{\\alpha} emission maps for a representative sample of 54 local U/LIRGs (66 galaxies). From this initial sample we select 26 objects with H{\\alpha} luminosities (L(H{\\alpha})) similar to those of massive (i.e. M\\ast \\sim 10^10 M\\odot or larger) SFGs at z \\sim 2, and probing similar physical scales. Results. The sizes of the H{\\alpha} emitting region in the sample of local U/LIRGs span a large range, with r1/2(H{\\alpha}) from 0.2 to 7 kpc. However, about 2/3 of local U/LIRGs with Lir > 10^11.4 L\\odot have compact H{\\alpha} emission (i.e. r1/2 2 kpc). These are systems showing pre-coalescence merger activity and they are indistinguishable from the massive high-z SFGs galaxies in t...

Arribas, S; Alonso-Herrero, A; Rosales-Ortega, F F; Monreal-Ibero, A; García-Marín, M; García-Burillo, S; Rodríguez-Zaurín, J

2012-01-01T23:59:59.000Z

30

ARM - Measurement - Hydrometeor size  

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

size size ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Hydrometeor size The size of a hydrometeor, measured directly or derived from other measurements . Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments DISDROMETER : Impact Disdrometer LDIS : Laser Disdrometer External Instruments CPOL : C-Band Polarimetric Radar Field Campaign Instruments EC-CONVAIR580-BULK : Environment Canada Convair 580 Bulk Parameters

31

Field Study of Performance, Comfort, and Sizing of Two Variable-Speed Heat Pumps Installed in a Single 2-Story Residence  

SciTech Connect (OSTI)

With the recent advancements in the application of variable-speed (VS) compressors to residential HVAC systems, opportunities are now available to size heat pumps (HPs) to more effectively meet heating and cooling loads in many of the climate zones in the US with limited use of inefficient resistance heat. This is in contrast to sizing guidance for traditional single-speed HPs that limits the ability to oversize with regard to cooling loads, because of risks of poor dehumidification during the cooling season and increased cycling losses. VS-drive HPs can often run at 30-40% of their rated cooling capacity to reduce cycling losses, and can adjust fan speed to provide better indoor humidity control. Detailed air-side performance data was collected on two VS-drive heat pumps installed in a single unoccupied research house in Knoxville, TN, a mixed-humid climate. One system provided space conditioning for the upstairs, while the other unit provided space conditioning for the downstairs. Occupancy was simulated by operating the lights, shower, appliances, other plug loads, etc. to simulate the sensible and latent loads imposed on the building space by internal electric loads and human occupants according to the Building America Research Benchmark (2008). The seasonal efficiency and energy use of the units are calculated. Annual energy use is compared to that of the single speed minimum efficiency HPs tested in the same house previously. Sizing of the units relative to the measured building load and manual J design load calculations is examined. The impact of the unit sizing with regards to indoor comfort is also evaluated.

Munk, Jeffrey D [ORNL; Odukomaiya, Adewale O [ORNL; Gehl, Anthony C [ORNL; Jackson, Roderick K [ORNL

2014-01-01T23:59:59.000Z

32

Electric field engineering using quantum-size-effect-tuned heterojunctions V. Adinolfi, Z. Ning, J. Xu, S. Masala, D. Zhitomirsky, S. M. Thon, and E. H. Sargent  

E-Print Network [OSTI]

, Ontario M5S 3G4, Canada 2 Division of Physical Sciences and Engineering, Solar and Photovoltaics junction solar cell architecture was recently reported that employs colloidal quantum dots (CQDs) on each the electric field profile within the solar cell through bandgap engineering, thereby improving carrier

33

Countering Aging Effects through Field Gate Sizing  

E-Print Network [OSTI]

. Using HSPICE and 70nm BPTM process numbers, we simulated the technique on four circuits (a ring oscillator, a fan-out four circuit, an ISCAS c432 and c2670). Over the lifetime of the circuit, our simulations predict a 8.89% and a 13% improvement in power...

Henrichson, Trenton D.

2010-01-14T23:59:59.000Z

34

ARM - Measurement - Particle size distribution  

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

size distribution size distribution ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Particle size distribution The number of particles present in any given volume of air within a specified size range. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments AOS : Aerosol Observing System CSPHOT : Cimel Sunphotometer TDMA : Tandem Differential Mobility Analyzer UHSAS : Ultra-High Sensitivity Aerosol Spectrometer Field Campaign Instruments

35

ARM - Measurement - Cloud droplet size  

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

droplet size droplet size ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Cloud droplet size Linear size (e.g. radius or diameter) of a cloud particle Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. Field Campaign Instruments CPI : Cloud Particle Imager CVI-AIR : Counterflow Virtual Impactor MIRAI : JAMSTEC Research Vessel Mirai PDI : Phase Doppler Interferometer UAV-PROTEUS-MICRO : Proteus Cloud Microphysics Instruments SPEC-CPI : Stratton Park Engineering Company - Cloud particle imager

36

ARM - Measurement - Aerosol particle size  

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

particle size particle size ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Aerosol particle size Linear size (e.g. radius or diameter) of an aerosol particle. Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. Field Campaign Instruments AEROSMASSSPEC : Aerosol Mass Spectrometer CPI : Cloud Particle Imager DRI-GND : Desert Research Institute Ground-Based Aerosol Instruments DRUM-AEROSOL : Drum Aerosol Sampler AEROSOL-TOWER-EML : EML Tower based Aerosol Measurements

37

What determines cell size?  

E-Print Network [OSTI]

as: Marshall WF, et al. : What determines cell size? BMC7007/10/101 FORUM Open Access What determines cell size?biologists have been wondering what determines the size of

2012-01-01T23:59:59.000Z

38

Size of Cloud from Shadow  

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

Size of Cloud from Shadow Size of Cloud from Shadow Name: mike Status: other Grade: other Location: N/A Country: USA Date: Summer 2011 Question: I see a cloud and I see its shadow in a field - knowing high sun angles - is there a way of telling how far away the cloud is or how big? - I am thinking if the shadow is 30' wide and the sun is at 2:00 pm- ? Replies: Hi Mike, Try this, draw a small circle representing the Sun. Somewhere below this circle and maybe to the right, draw an oblong, make this oblong bigger than the circle. Now connect the leftmost edge of the circle with the leftmost edge of the oblong with a straight line. Do the same for the rightmost edges. The oblong now represent the shadow of a cloud on the ground, and the lines represent the rays of the sun passing along the edges of the cloud.

39

ARM - Measurement - Cloud size  

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

to hear from you Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Cloud size Information about the physical dimensions of a cloud, including such measurements...

40

Particle Size Characterization  

E-Print Network [OSTI]

NISTrecommended p r a c t i c e g u i d e Special Publication 960-1 #12;i Particle Size Characterization Ajit.S. Department of Commerce Donald L. Evans, Secretary Technology Administration Karen H. Brown, Acting Under Steve Freiman, Said Jahanmir, James Kelly, Patrick Pei and Dennis Minor and of the Ceramics Division

Note: This page contains sample records for the topic "field size mmboe" 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

ARM - Measurement - Aerosol particle size distribution  

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

particle size distribution particle size distribution ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Aerosol particle size distribution The number of aerosol particles present in any given volume of air within a specificied size range Categories Aerosols Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments SMPS : Scanning mobility particle sizer TDMA : Tandem Differential Mobility Analyzer UHSAS : Ultra-High Sensitivity Aerosol Spectrometer Field Campaign Instruments

42

ARM - Measurement - Cloud particle size distribution  

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

size distribution size distribution ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Cloud particle size distribution The number of cloud particles present in any given volume of air within a specified size range, including liquid and ice. Categories Cloud Properties Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments WSACR : Scanning ARM Cloud Radar, tuned to W-Band (95GHz) Field Campaign Instruments CPI : Cloud Particle Imager CLDAEROSMICRO : Cloud and Aerosol Microphysical Properties

43

Down-sizing Forever  

E-Print Network [OSTI]

Evidence for cosmic down-sizing has been growing over the last decade. It is now clear that the major star-forming epoch for the largest galaxies occurred earlier than for smaller galaxies. This not only runs counter to the popular hierarchical clustering picture, but points to an even more radical revision of our ideas of the evolution of cosmological structure. Galaxies do not form at all.

Douglas Scott; Ali Frolop

2008-03-31T23:59:59.000Z

44

Display Size Wireless LAN  

E-Print Network [OSTI]

.) - Security sofware ­ESET Smart Security. No Reuse PC with English OS for this time. PC PC Code Image Brand PC PC Code Image Brand Model F008 Panasonic CF-W2 Pentium733 M 1.10GHz 256MB 40GB 12.1 inch 1.0kg System Memory HDD Display Size Weight OS Accessory LAN Wireless LAN Remarks PC PC Code Image Brand

Katsumoto, Shingo

45

Arun field  

SciTech Connect (OSTI)

The Arun field is a giant gas-condensate field operated by Mobil and Pertamina with over 20,000 acres of closure at the top of the Arun reservoir. A middle-shelf patch reef complex of early to middle Miocene age is the producing facies at the Arun field. About 1,100 ft of porous limestones, encased in shales, create a stratigraphic trap for overpressure hydrocarbons. Three main carbonate lithologies were encountered during the examination of over 4,300 ft of core; (1) a reef facies consisting of vuggy, coral encrusting, red-algal boundstones, (2) a near-reef facies consisting of foraminiferal, mixed-skeletal packstones with gravel-size coral fragments, and (3) an interreef lagoonal facies consisting of benthonic-foram packstones. Twenty-two species of corals have been identified from Arun reef facies; major reef-forming coals, listed in order of decreasing abundance, are Porites cf P. Lutes, Cyphastrea microphthalma, Astreopora myriophthalma, Styloconiella gunetheri, Porites solida, and Acropora ssp. The Arun reef is comprised of limestones (with minor amounts of dolomite). No shale beds occur in the sequence, and all carbonate facies are in communication. A pervasive microporosity, occurring throughout the Arun Limestone, results from meteoric alteration of original carbonate mud to form a microrhombic porosity that accounts for about three-fourths of the field's total porosity.

Jordan, C.F. Jr.; Abdullah, M.

1988-01-01T23:59:59.000Z

46

Usage by Job Size  

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

Usage by Job Usage by Job Size Table Usage by Job Size Table page loading animation Usage Query Interface System All Hopper Edison Carver Planck Matgen Franklin Hopper 1 Magellan Dirac Bassi Jacquard Seaborg User Account (Repo) Execution Queue All Debug Interactive Premium Regular Short Regular Long Regular Small Regular Medium Regular Big Regular Extra Big Killable Low Transfer IO Task Special System Serial Big Memory Westmere === Inactive === Magellan Serial Magellan Short Magellan Small Magellan Medium Magellan Big Magellan Long Regular 1 Regular 1 Long Regular 16 Regular 32 Regular 48 Full Config Seaborg Serial Batch 16 Batch 32 Batch 64 Submit Queue all interactive debug premium regular low DOE Office all ASCR BER BES FES HEP NP Summary for jobs that completed after Jan Feb Mar Apr May Jun July Aug Sep Oct Nov Dec 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 @ 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 : 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

47

ARM - Measurement - Hydrometeor Size Distribution  

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

Size Distribution Size Distribution ARM Data Discovery Browse Data Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Measurement : Hydrometeor Size Distribution The number of hydrometeors observed in a given size range. Categories Cloud Properties, Atmospheric State Instruments The above measurement is considered scientifically relevant for the following instruments. Refer to the datastream (netcdf) file headers of each instrument for a list of all available measurements, including those recorded for diagnostic or quality assurance purposes. ARM Instruments LDIS : Laser Disdrometer Datastreams LDIS : Laser Disdrometer Datastreams PARS2 : OTT Parsivel2 Laser Disdrometer VDIS : Video Disdrometer Datastreams VDIS : Video Disdrometer Drop Size Distribution

48

Can Government Regulate Portion Sizes?  

Science Journals Connector (OSTI)

...it struck down the law on the basis of the separation-of-powers issue. According to the dissenting opinion, however, "the Rule easily passes this test." Neither lower court had found that regulating portion sizes of sugar-sweetened beverages was irrational (although both courts similarly struck down... A New York City Board of Health regulation limiting portion sizes of sugar-sweetened beverages was struck down this year, but the case may help address fundamental questions about whether restricting portion sizes is defensible on public health and legal grounds.

Pomeranz J.L.; Brownell K.D.

2014-11-20T23:59:59.000Z

49

Hardware Sizing for Software Application  

E-Print Network [OSTI]

, in real-life there is a need to predict the capacity when budgeting hardware, assessing technical risk, validating technical architecture, sizing packaged applications, predicting production system capacity requirements, and calculating the cost...

Swaminathan, Ganesh

2009-05-15T23:59:59.000Z

50

Seed size strongly affects cascades on random networks  

Science Journals Connector (OSTI)

The average avalanche size in the Watts model of threshold dynamics on random networks of arbitrary degree distribution is determined analytically. Existence criteria for global cascades are shown to depend sensitively on the size of the initial seed disturbance. The dependence of cascade size upon the mean degree z of the network is known to exhibit several transitions—these are typically continuous at low z and discontinuous at high z; here it is demonstrated that the low-z transition may in fact be discontinuous in certain parameter regimes. Connections between these results and the zero-temperature random-field Ising model on random graphs are discussed.

James P. Gleeson and Diarmuid J. Cahalane

2007-05-03T23:59:59.000Z

51

Practice Field Practice Field  

E-Print Network [OSTI]

Courts Soccer Field Swimming pool Bandeen Hall Mountain House # 3 # 2 Golf Course Security Patterson Hall.B. Scott Arena Library Centennial Theater Mc Greer Hall Pollack Hall New Johnson Science Building Dewhurst Dining Hall Champlain Regional College # 4 Mackinnon Hall Residence # 6 Memorial House Retired Faculty

52

Compare All CBECS Activities: Size  

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

By Building Size By Building Size Compare Activities by ... Building Size Total Floorspace by Building Type There was approximately 67.3 billion square feet of commercial floorspace in the U.S. in 1999. Because there are many of them, office buildings comprised the largest amount of commercial floorspace. Figure showing total floorspace by building type. If you need assistance viewing this page, please call 202-586-8800. Square Feet per Building by Building Type Inpatient health buildings were by far the largest building type, on average, while food service and food sales buildings were the smallest. Figure showing square feet per building by building type. If you need assistance viewing this page, please call 202-586-8800. Establishments per Building by Building Type

53

8, 78477881, 2008 Size distributions  

E-Print Network [OSTI]

ACPD 8, 7847­7881, 2008 Size distributions and sources of WSOC in urban background area H. Timonen, sources and source areas of water-soluble organic carbon in urban background air H. Timonen 1 , S Chemistry Division National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80305-3000, USA

Boyer, Edmond

54

Genome size and wing parameters in passerine birds  

Science Journals Connector (OSTI)

...wing area. Specifically, a low loading index indicates a reduction in body mass per...brachyrhynchos), was donated after the completion of the field season at the LBPO and its...as between genome size and wing loading index, which is interpreted as an indicator...

2009-01-01T23:59:59.000Z

55

The evolutionary consequences of oxygenic photosynthesis: a body size perspective  

E-Print Network [OSTI]

at lower O2:CO2. Field studies of size distributions across extant higher taxa and individual species of Biology, University of New Mexico, Albuquerque, NM 87131, USA M. Kowalewski Department of Geosciences transport limits the thickness or volume-to-surface area ratio--rather than mass or volume

Lyons, S. Kathleen

56

Calculation of size for bound-state constituents  

E-Print Network [OSTI]

Elements are given of a calculation that identifies the size of a proton in the Schroedinger equation for lepton-proton bound states, using the renormalization group procedure for effective particles (RGPEP) in quantum field theory, executed only up to the second order of expansion in powers of the coupling constant. Already in this crude approximation, the extraction of size of a proton from bound-state observables is found to depend on the lepton mass, so that the smaller the lepton mass the larger the proton size extracted from the same observable bound-state energy splitting. In comparison of Hydrogen and muon-proton bound-state dynamics, the crude calculation suggests that the difference between extracted proton sizes in these two cases can be a few percent. Such values would match the order of magnitude of currently discussed proton-size differences in leptonic atoms. Calculations using the RGPEP of higher order than second are required for a precise interpretation of the energy splittings in terms of the proton size in the Schroedinger equation. Such calculations should resolve the conceptual discrepancy between two conditions: that the renormalization group scale required for high accuracy calculations based on the Schroedinger equation is much smaller than the proton mass (on the order of a root of the product of reduced and average masses of constituents) and that the energy splittings due to the physical proton size can be interpreted ignoring corrections due to the effective nature of constituents in the Schr\\"odinger equation.

Stanislaw D. Glazek

2014-06-01T23:59:59.000Z

57

Method and apparatus for sizing and separating warp yarns using acoustical energy  

DOE Patents [OSTI]

A slashing process for preparing warp yarns for weaving operations including the steps of sizing and/or desizing the yarns in an acoustic resonance box and separating the yarns with a leasing apparatus comprised of a set of acoustically agitated lease rods. The sizing step includes immersing the yarns in a size solution contained in an acoustic resonance box. Acoustic transducers are positioned against the exterior of the box for generating an acoustic pressure field within the size solution. Ultrasonic waves that result from the acoustic pressure field continuously agitate the size solution to effect greater mixing and more uniform application and penetration of the size onto the yarns. The sized yarns are then separated by passing the warp yarns over and under lease rods. Electroacoustic transducers generate acoustic waves along the longitudinal axis of the lease rods, creating a shearing motion on the surface of the rods for splitting the yarns.

Sheen, Shuh-Haw (Naperville, IL); Chien, Hual-Te (Naperville, IL); Raptis, Apostolos C. (Downers Grove, IL); Kupperman, David S. (Oak Park, IL)

1998-01-01T23:59:59.000Z

58

High spring temperatures decrease peach fruit size  

E-Print Network [OSTI]

useful in dif?cult fruit- and crop level interactions inin light of the increasing fruit size distribution and waterpressure for large-size fruits. CALIFORNIA AGRICULTURE •

Lopez, Geraldo; Johnson, R. Scott; DeJong, Theodore M.

2007-01-01T23:59:59.000Z

59

Strategy Guideline: HVAC Equipment Sizing  

SciTech Connect (OSTI)

The heating, ventilation, and air conditioning (HVAC) system is arguably the most complex system installed in a house and is a substantial component of the total house energy use. A right-sized HVAC system will provide the desired occupant comfort and will run efficiently. This Strategy Guideline discusses the information needed to initially select the equipment for a properly designed HVAC system. Right-sizing of an HVAC system involves the selection of equipment and the design of the air distribution system to meet the accurate predicted heating and cooling loads of the house. Right-sizing the HVAC system begins with an accurate understanding of the heating and cooling loads on a space; however, a full HVAC design involves more than just the load estimate calculation - the load calculation is the first step of the iterative HVAC design procedure. This guide describes the equipment selection of a split system air conditioner and furnace for an example house in Chicago, IL as well as a heat pump system for an example house in Orlando, Florida. The required heating and cooling load information for the two example houses was developed in the Department of Energy Building America Strategy Guideline: Accurate Heating and Cooling Load Calculations.

Burdick, A.

2012-02-01T23:59:59.000Z

60

Calibrating page sized Gafchromic EBT3 films  

SciTech Connect (OSTI)

Purpose: The purpose is the development of a novel calibration method for dosimetry with Gafchromic EBT3 films. The method should be applicable for pretreatment verification of volumetric modulated arc, and intensity modulated radiotherapy. Because the exposed area on film can be large for such treatments, lateral scan errors must be taken into account. The correction for the lateral scan effect is obtained from the calibration data itself. Methods: In this work, the film measurements were modeled using their relative scan values (Transmittance, T). Inside the transmittance domain a linear combination and a parabolic lateral scan correction described the observed transmittance values. The linear combination model, combined a monomer transmittance state (T{sub 0}) and a polymer transmittance state (T{sub {infinity}}) of the film. The dose domain was associated with the observed effects in the transmittance domain through a rational calibration function. On the calibration film only simple static fields were applied and page sized films were used for calibration and measurements (treatment verification). Four different calibration setups were considered and compared with respect to dose estimation accuracy. The first (I) used a calibration table from 32 regions of interest (ROIs) spread on 4 calibration films, the second (II) used 16 ROIs spread on 2 calibration films, the third (III), and fourth (IV) used 8 ROIs spread on a single calibration film. The calibration tables of the setups I, II, and IV contained eight dose levels delivered to different positions on the films, while for setup III only four dose levels were applied. Validation was performed by irradiating film strips with known doses at two different time points over the course of a week. Accuracy of the dose response and the lateral effect correction was estimated using the dose difference and the root mean squared error (RMSE), respectively. Results: A calibration based on two films was the optimal balance between cost effectiveness and dosimetric accuracy. The validation resulted in dose errors of 1%-2% for the two different time points, with a maximal absolute dose error around 0.05 Gy. The lateral correction reduced the RMSE values on the sides of the film to the RMSE values at the center of the film. Conclusions: EBT3 Gafchromic films were calibrated for large field dosimetry with a limited number of page sized films and simple static calibration fields. The transmittance was modeled as a linear combination of two transmittance states, and associated with dose using a rational calibration function. Additionally, the lateral scan effect was resolved in the calibration function itself. This allows the use of page sized films. Only two calibration films were required to estimate both the dose and the lateral response. The calibration films were used over the course of a week, with residual dose errors Less-Than-Or-Slanted-Equal-To 2% or Less-Than-Or-Slanted-Equal-To 0.05 Gy.

Crijns, W.; Maes, F.; Heide, U. A. van der; Van den Heuvel, F. [Department of Radiation Oncology, University Hospitals Leuven, Herestraat 49, 3000 Leuven (Belgium); Department ESAT/PSI-Medical Image Computing, Medical Imaging Research Center, KU Leuven, Herestraat 49, 3000 Leuven (Belgium); Department of Radiation Oncology, The Netherlands Cancer Institute-Antoni van Leeuwenhoek Hospital, Plesmanlaan 121, 1066 CX Amsterdam (Netherlands); Department of Radiation Oncology, University Hospitals Leuven, Herestraat 49, 3000 Leuven (Belgium)

2013-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

Development of Small Size Claude Cycle Helium Refrigerator with Micro Turbo-Expander  

Science Journals Connector (OSTI)

In the field of small size helium refrigerators, need for a maintenance free and vibration free system is rapidly increasing, especially for the application to cryoelectronic devices such as NMR-CT and Josephs...

H. Izumi; S. Harada; K. Matsubara; S. Saito

1986-01-01T23:59:59.000Z

62

Magnetic Vortex Core Reversal by Low-Field Excitations  

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

Magnetic Vortex Core Reversal by Low-Field Excitations Print In micrometer-sized magnetic thin films, the magnetization typically adopts an in-plane, circular configuration known...

63

Introduction The composition and size of atmospheric  

E-Print Network [OSTI]

of nearly an order of magnitude in all size bins, with pronounced increases in larger size bins. · The Raman&M University Chart 1: The 0.3 m size bin exceeds 1x10 particles per 0.5000ft³ and particle count overlaps. Chart 2: The 0.3m bin count predominates and there are significant differences between size bin counts

64

Superconducting trapped-field magnets: Temperature and field distributions during pulsed-field activation  

E-Print Network [OSTI]

progress in fabrication of large-sized high- temperature superconductors with high critical current den We calculate the temperature and magnetic field distributions in a bulk superconductor during leads to a strong temperature rise in superconductor during the activation pro- cess. There have already

Johansen, Tom Henning

65

System Size Resonance in Coupled Noisy Systems and in the Ising Model  

Science Journals Connector (OSTI)

We consider an ensemble of coupled nonlinear noisy oscillators demonstrating in the thermodynamic limit an Ising-type transition. In the ordered phase and for finite ensembles stochastic flips of the mean field are observed with the rate depending on the ensemble size. When a small periodic force acts on the ensemble, the linear response of the system has a maximum at a certain system size, similar to the stochastic resonance phenomenon. We demonstrate this effect of system size resonance for different types of noisy oscillators and for different ensembles—lattices with nearest neighbors coupling and globally coupled populations. The Ising model is also shown to demonstrate the system size resonance.

A. Pikovsky; A. Zaikin; M. A. de la Casa

2002-01-16T23:59:59.000Z

66

1999 Commercial Buildings Characteristics--Building Size  

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

Size of Buildings Size of Buildings Size of Buildings The 1999 CBECS estimated that 2,348,000 commercial buildings, or just over half (50.4 percent) of total buildings, were found in the smallest building size category (1,001 to 5,000 square feet) (Figure 1). Only 7,000 buildings occupied the largest size category (over 500,000 square feet). Detailed tables Figure 1. Distribution of Buildings by Size of Building, 1999 Figure 1. Distribution of Buildings by Size of Building, 1999. If having trouble viewing this page, please contact the National Energy Information Center at (202) 586-8800. Energy Information Administration Commercial Buildings Energy Consumption Survey The middle size categories (10,001 to 100,000 square feet) had relatively more floorspace per category than smaller or larger size categories (Figure 2). The greatest amount of floorspace, about 11,153,000 square feet (or 17 percent of total floorspace) was found in the 10,001 to 25,000 square feet category. Figure 2. Distribution of Floorspace by Size of Building, 1999

67

Can selection on nest size from nest predation explain the latitudinal gradient in clutch size?  

E-Print Network [OSTI]

Can selection on nest size from nest predation explain the latitudinal gradient in clutch size. 2. The nest size hypothesis posits that higher nest predation in the tropics favours selection for smaller nests and thereby constrains clutch size by shrinking available space for eggs and/or nestlings

Martin, Thomas E.

68

Plasma Production via Field Ionization  

SciTech Connect (OSTI)

Plasma production via field ionization occurs when an incoming particle beam is sufficiently dense that the electric field associated with the beam ionizes a neutral vapor or gas. Experiments conducted at the Stanford Linear Accelerator Center explore the threshold conditions necessary to induce field ionization by an electron beam in a neutral lithium vapor. By independently varying the transverse beam size, number of electrons per bunch or bunch length, the radial component of the electric field is controlled to be above or below the threshold for field ionization. Additional experiments ionized neutral xenon and neutral nitric oxide by varying the incoming beam's bunch length. A self-ionized plasma is an essential step for the viability of plasma-based accelerators for future high-energy experiments.

O'Connell, C.L.; Barnes, C.D.; Decker, F.; Hogan, M.J.; Iverson, R.; Krejcik, P.; Siemann, R.; Walz, D.R.; /SLAC; Clayton, C.E.; Huang, C.; Johnson, D.K.; Joshi, C.; Lu,; Marsh, K.A.; Mori, W.; Zhou, M.; /UCLA; Deng, S.; Katsouleas, T.; Muggli, P.; Oz, E.; /Southern California U.

2007-01-02T23:59:59.000Z

69

" Row: Employment Sizes within NAICS Codes...  

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

establishments using the North American" "Industry Classification System (NAICS). " " (b) Employment Size categories were supplied by the" "Bureau of the Census." " NFNo...

70

Bubble size effect on effervescent atomization.  

E-Print Network [OSTI]

??This paper presents the results from a number of studies conducted in an effort to gain insight into how to control bubble size during gas… (more)

Shepard, Thomas G.

2011-01-01T23:59:59.000Z

71

Sizing sliding gate valves for steam service  

SciTech Connect (OSTI)

Sliding gate valves have been used in thousands of applications during the past 40 yr. While steam control is a common application for these valves, thy are also used to control other gases and liquids. The sliding gate design provides straight-through flow, which minimizes turbulence, vibration, and noise. Seats are self-cleaning and self-lapping to provide a tight, long-lasting shutoff. A correctly sized valve is essential for accurate control. Valve size should be determined by service and system requirements, not by the size of the existing pipeline. Sizing a valve on the basis of pipeline size usually results in an oversized valve and poor control. Generally, regulator size is smaller than pipe size. Whenever complete information is known (inlet pressure, outlet pressure, or pressure drop, and required flow), determine the valve flow coefficient (C{sub v}) using the equations in ANSI/ISA S75.01 or a flow sizing chart. Tables of values for various types of valves are available from manufacturers. However, when complete system requirements are not known, valve oversizing is prevented by determining the design capacity of piping downstream from the valve. The valve should not be sized to pass more flow than the maximum amount the pipe can handle at a reasonable velocity. An example calculation is given.

Bollinger, R. [Jordan Value, Cincinnati, OH (United States)

1995-11-06T23:59:59.000Z

72

Optimizing program increases field's profits  

SciTech Connect (OSTI)

By combining benefits of several techniques to increase production and cut drilling and completion costs, Royal Oil and Gas Corp. has increased profitability on it leases in the AWP (Olmos) field, and made the operations economical in the 1988 price environment. The optimization program has included modifying fracture treatments, refracturing older wells, infill drilling, and down sizing of tubulars. Royal has also participated in consortium efforts to increase AWP (Olmos) production through analysis using a borehole televiewer, microfracturing, and history matching. Study of reservoir changes since the beginning of production has led Royal to alter its fracture stimulation designs to reduce treatment sizes that can further increase savings.

Huebinger, T.; Webster, D.; Chrisholm, P.; Venditto, J.; Hunt, J.

1988-08-29T23:59:59.000Z

73

Hall Effect, Magnetoresistance, and Size Effects in Copper  

Science Journals Connector (OSTI)

Measurements of the Hall coefficient of several annealed polycrystalline Cu strips of resistivity ratio ?(273°K)?(4.2°K)?450 and thicknesses ranging from 0.05 to 1.6 mm have revealed the existence of a marked size effect at low temperatures. The effect is orders of magnitude greater than that to be expected on the basis of free-electron theory. It is suggested that earlier low-temperature data on the Hall effect of thin high-purity samples are subject to uncertainties arising from such effects. Size effects were also evident in the transverse magnetoresistance. At high fields, a tendency toward saturation in the transverse magnetoresistance was observed for thick samples. The temperature dependence of the Hall coefficient has also been studied.

Ted G. Berlincourt

1958-10-15T23:59:59.000Z

74

Measurement of Engine Exhaust Particle Size  

E-Print Network [OSTI]

Measurement of Engine Exhaust Particle Size David B. Kittelson Center for Diesel Research than 90% of particle number are formed during exhaust dilution ­ Particle dynamics during sampling deposition of particle with density of 1 g/um Typical Diesel Particle Size Distribution #12;Typical Diesel

Minnesota, University of

75

Estimating nanoparticle size from diffraction measurements  

Science Journals Connector (OSTI)

A Fourier transform of a Debye-Scherrer diffraction pattern can be used to estimate the characteristic size of nanoparticle samples. This method is insensitive to nanoparticle structure and therefore preferable to the Scherrer formula (which is unreliable because it assumes an underlying size-limited perfect crystal structure).

Hall, B.D.

2000-12-01T23:59:59.000Z

76

Temperature-size rule is mediated by thermal plasticity of critical size in Drosophila melanogaster  

Science Journals Connector (OSTI)

...at higher temperatures, supporting...that oxygen supply may play a...different temperatures and control thermal plasticity...Nijhout. 2011 Control of body size by oxygen supply reveals size-dependent...of rearing temperature and oxygen...

2013-01-01T23:59:59.000Z

77

Nevada Field Office  

National Nuclear Security Administration (NNSA)

about NNSS

field field-type-text field-field-sidebar-content">
field-items">
field-item odd">
78

Estimating population size by genotyping faeces  

Science Journals Connector (OSTI)

...CA 91360, USA Population size is a fundamental biological parameter that is di cult...In Ecological census techniques, a handbook (ed. W. J. Sutherland), pp. 11...In Ecological census techniques, a handbook (ed. W. J. Sutherland), pp. 1...

1999-01-01T23:59:59.000Z

79

Lot Sizing with Piecewise Concave Production Costs  

E-Print Network [OSTI]

Feb 14, 2013 ... We study the lot-sizing problem with piecewise concave production ..... solution with the largest j value such that sj?1 = 0 and st > 0 for t = j,...,n.

2013-02-14T23:59:59.000Z

80

Particle Size Distribution of Gypseous Samples  

E-Print Network [OSTI]

particle size analyzer (LPSA) using This thesis follows the style of Soil Science Society of America Journal. 2 different solutions; and 3) determine if a functional relationship exists between PSD results from the pipette method and the results...

Arnett, Morgan P.

2010-01-16T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

Antiferromagnetic domain size and exchange bias  

E-Print Network [OSTI]

Using neutron diffraction, we measured the sizes of antiferromagnetic domains in three ferromagnet/antiferromagnet bilayer samples as a function of the magnitude and sign of exchange bias, temperature, and antiferromagnet composition. Neutron...

Fitzsimmons, M. R.; Lederman, D.; Cheon, M.; Shi, H.; Olamit, J.; Roshchin, Igor V.; Schuller, Ivan K.

2008-01-01T23:59:59.000Z

82

ERP System Adoption - Does the Size Matter?  

Science Journals Connector (OSTI)

This paper investigates the relationship of enterprise size to the constraints and objectives of Enterprise Resource Planning (ERP) systems adoption. The survey data based on the responses of 44 companies indicates that significant differences exist ...

Sanna Laukkanen; Sami Sarpola; Petri Hallikainen

2005-01-01T23:59:59.000Z

83

Size Optimizations for Java C. Scott Ananian  

E-Print Network [OSTI]

Analysis int foo() { if (...) i=1; else i=2; if (i>0) ... } 7 7 77 ¨¨¨ ¨¨¨¨ e e ee rrr rrSize Optimizations for Java Programs C. Scott Ananian cananian@lcs.mit.edu Laboratory for Computer() { if (...) i=1; else i=2; if (i>0) ... } Size Optimizations for Java Programs ­ p.9 #12;Intraprocedural

Ananian, C. Scott

84

Disruption effects on the beam size measurement  

SciTech Connect (OSTI)

At the SLC Final Focus with higher currents and smaller beam sizes, the disruption parameter D{sub y} is close to one and so the pinch effect should produce a luminosity enhancement. Since a flat beam-beam function is fit to deflection scan data to measure the beam size, disruption can affect the measurement. Here the authors discuss the quantitative effects of disruption for typical SLC beam parameters. With 3.5 10{sup 10} particles per pulse, bunch length of 0.8 mm and beam sizes of 2.1 {mu}m horizontally and 0.55 {mu}m vertically, the measured vertical size can be as much as 25% bigger than the real one. Furthermore during the collision the spot size actually decrease, producing an enhancement factor H{sub D} of about 1.25. This would yield to a true luminosity which is 1.6 times that which is estimated from the beam-beam deflection fit.

Raimondi, P.; Decker, F.J.; Chen, P.

1995-06-01T23:59:59.000Z

85

Bimodal Island Size Distribution in Heteroepitaxial Growth  

Science Journals Connector (OSTI)

A bimodal size distribution of two-dimensional islands is inferred during interface formation in heteroepitaxial growth of bismuth ferrite on (001) oriented SrTiO3 by sputter deposition. Features observed by in situ x-ray scattering are explained by a model where coalescence of islands determines the growth kinetics with negligible surface diffusion on SrTiO3. Small clusters maintain a compact shape as they coalesce, while clusters beyond a critical size impinge to form large irregular connected islands and a population of smaller clusters forms in the spaces between the larger ones.

P.?V. Chinta and R.?L. Headrick

2014-02-20T23:59:59.000Z

86

NREL: Wind Research - Field Test Sites  

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

Field Test Sites Field Test Sites Aerial view of the National Wind Technology Center with the Flatiron Mountains in the background NREL's NWTC has numerous test pads available to industry partners for testing wind turbines that range in size from a few hundred kilowatts to several megawatts. PIX 17711. Manufacturers can take advantage of NREL's numerous test pads and the technical expertise of its staff to field test prototypes of small and large wind turbines. Many of the small wind turbines tested at the NWTC are participants in NREL's Small Wind Turbine Independent Test Program. Small and mid-sized turbines field tested at the NWTC include those manufactured by Atlantic Orient Corporation, Bergey Windpower, Southwest Wind Power, Northern Power Systems, Endurance Wind Power Inc., Gaia-Wind Ltd.,

87

SciTech Connect: Heavy Quarks, QCD, and Effective Field Theory  

Office of Scientific and Technical Information (OSTI)

Quarks, Quarkonium, Soft-Collinear Effective Theory, Effective Field Theories Word Cloud More Like This Full Text preview image File size NAView Full Text View Full Text DOI:...

88

Improved gap size estimation for scaffolding algorithms  

Science Journals Connector (OSTI)

......and 950 bp. The contigs were set to a fixed size of 3000 bp...three read libraries and four sets of contigs). The results of...parts of the distribution fail to cover the gap and only the longest...we simulated four different sets of contigs from the genome with......

Kristoffer Sahlin; Nathaniel Street; Joakim Lundeberg; Lars Arvestad

2012-09-01T23:59:59.000Z

89

Arbovirus infection increases with group size  

Science Journals Connector (OSTI)

...increase with host group size (e.g. Poulin 1991a,b; Hoogland 1995; Brown & Brown...1839 Proc. R. Soc. Lond. B (2001) Poulin, R. 1991a Group-living and infestation...in passerines. Condor 93, 418^423. Poulin, R. 1991b Group-living and the richness...

2001-01-01T23:59:59.000Z

90

One Size Does Not Fit All  

Science Journals Connector (OSTI)

...that it is good to share both data and technology, and that a one size fits all philosophy...modems, commercial phone systems, intranet communications, solar panels, batteries...Monitoring System from Boulder Real Time Technologies provides a new robust platform for near-real-time...

Roger Hansen

91

Crystal size and shape analysis of Pt nanoparticles in two and three dimensions  

E-Print Network [OSTI]

different intensities as a result of diffraction contrast, while the carbon support has a thickness between particles when they are imaged in projection. High-angle annular dark-field (HAADF) electron on graphitic carbon, with an average size of 5 nm. Institute of Physics Publishing Journal of Physics

Dunin-Borkowski, Rafal E.

92

Structure Optimization of FePt Nanoparticles of Various Sizes for Magnetic Data Storage  

E-Print Network [OSTI]

to a modified reaction route based on Sun et al.[1] Hexane dispersions of nanoparticles were dried increases with particle size and with the temperature in the range 600 °C to 650 °C, being close to unity-assembly over large areas, and a narrow distribution of switching fields. The long storage time and high storage

Laughlin, David E.

93

Size-Exclusion Chromatography Moves to the Plant for On-line Polymer Analysis  

Science Journals Connector (OSTI)

......Discussion Although the field is still very new...prover in motor oils. Note the narrow...midpoint of the production cycle for the polymer...an early stage in production: Sample size...most useful as a production aid. For convenience...their ratios, or a cumulative distribution. Our......

Edward N. Fuller; Grady T. Porter; Lewis B. Roof

1982-03-01T23:59:59.000Z

94

Remote Laser Diffraction Particle Size Distribution Analyzer  

SciTech Connect (OSTI)

In support of a radioactive slurry sampling and physical characterization task, an “off-the-shelf” laser diffraction (classical light scattering) particle size analyzer was utilized for remote particle size distribution (PSD) analysis. Spent nuclear fuel was previously reprocessed at the Idaho Nuclear Technology and Engineering Center (INTEC—formerly recognized as the Idaho Chemical Processing Plant) which is on DOE’s INEEL site. The acidic, radioactive aqueous raffinate streams from these processes were transferred to 300,000 gallon stainless steel storage vessels located in the INTEC Tank Farm area. Due to the transfer piping configuration in these vessels, complete removal of the liquid can not be achieved. Consequently, a “heel” slurry remains at the bottom of an “emptied” vessel. Particle size distribution characterization of the settled solids in this remaining heel slurry, as well as suspended solids in the tank liquid, is the goal of this remote PSD analyzer task. A Horiba Instruments Inc. Model LA-300 PSD analyzer, which has a 0.1 to 600 micron measurement range, was modified for remote application in a “hot cell” (gamma radiation) environment. This technology provides rapid and simple PSD analysis, especially down in the fine and microscopic particle size regime. Particle size analysis of these radioactive slurries down in this smaller range was not previously achievable—making this technology far superior than the traditional methods used. Successful acquisition of this data, in conjunction with other characterization analyses, provides important information that can be used in the myriad of potential radioactive waste management alternatives.

Batcheller, Thomas Aquinas; Huestis, Gary Michael; Bolton, Steven Michael

2001-03-01T23:59:59.000Z

95

Energy weighted x-ray dark-field imaging  

Science Journals Connector (OSTI)

The dark-field image obtained in grating-based x-ray phase-contrast imaging can provide information about the objects’ microstructures on a scale smaller than the pixel size...

Pelzer, Georg; Zang, Andrea; Anton, Gisela; Bayer, Florian; Horn, Florian; Kraus, Manuel; Rieger, Jens; Ritter, Andre; Wandner, Johannes; Weber, Thomas; Fauler, Alex; Fiederle, Michael; Wong, Winnie S; Campbell, Michael; Meiser, Jan; Meyer, Pascal; Mohr, Jürgen; Michel, Thilo

2014-01-01T23:59:59.000Z

96

Development of nanoparticle sizing system integrated with optical microscopy using fluorescence polarisation  

Science Journals Connector (OSTI)

There is a strong demand for the development of functional nanostructured devices. On the basis of fundamental chemistry, the fields of biotechnology and materials science have developed over the past three decades into powerful disciplines that allow the engineering of advanced technical devices. The functions of nanostructures are greatly influenced by their size and shape. In order to enable precise fabrication of nanostructured devices by bottom-up methods, real-time control based on in situ evaluation of nanoparticle growth and aggregation is needed. The fluorescence polarisation technique allows estimation of the size of a macromolecular structure from rotational diffusion constants, which can be obtained from the correlation of polarisation in fluorescence from fluorophores attached to the macromolecular structure. By analysing the degree of fluorescence polarisation, the theoretical size can be calculated by the Perrin-Weber formula. In this study, we investigated the degree of fluorescence polarisation dependency on different sizes of fluorescein-labelled nanoparticles.

Terutake Hayashi; Yasuhiro Takaya; Masaki Michihata

2012-01-01T23:59:59.000Z

97

Magnetic Field Safety Training  

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

Safety Training Magnetic Field Safety Strong Magnetic Fields exist around energized magnets. High magnetic fields alone are a recognized hazard only for personnel with certain...

98

Biodiversity and body size are linked across metazoans  

Science Journals Connector (OSTI)

...nematodes (Kirchner et al. 1980), amphipods (Poulin Hamilton 1995) and copepods (Poulin 1995). The size range for vertebrates has greatly...1983Cambridge, UK:Cambridge University Press Poulin, R. 1995Clutch size and egg size in free-living...

2009-01-01T23:59:59.000Z

99

Fuel Requirements and Energy Savings Tips for Field Operations  

E-Print Network [OSTI]

of gasoline than diesel fuel to perform the same field operation because diesel engines are more fuel efficient than gasoline engines. FUEL CONSERVATION METHODS Farmers can consider numerous measures to reduce Matching implement size to tractor size can result in fuel savings. In general, if implements are matched

Goodman, Robert M.

100

Effect of thesaurus size on schema matching quality  

Science Journals Connector (OSTI)

Abstract Thesaurus is used in many Information Retrieval (IR) applications such as data integration, data warehousing, semantic query processing and schema matching. Schema matching or mapping is one of the most important basic steps in data integration. It is the process of identifying the semantic correspondence or equivalent between two or more schemas. Considering the fact of the existence of many thesauri for identical knowledge domain, the quality and the change in the results of schema matching when using different thesauri in specific knowledge field are not predictable. In this research, we studied the effect of thesaurus size on schema matching quality by conducting many experiments using different thesauri. In addition, a new method in calculating the similarity between vectors extracted from thesaurus database is proposed. The method is based on the ratio of individual shared elements to the elements in the compound set of the vectors. Moreover, we explained in details the efficient algorithm used in searching thesaurus database. After describing the experiments, results that show enhancement in the average of the similarity is presented. The completeness, effectiveness, and their harmonic mean measures were calculated to quantify the quality of matching. Experiments on two different thesauri show positive results with average Precision of 35% and a less value in the average of Recall. The effect of thesaurus size on the quality of matching was statically insignificant; however, other factors affecting the output and the exact value of change are still in the focus of our future study.

Thabit Sabbah; Ali Selamat; Mahmood Ashraf; Tutut Herawan

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

Magnetic Field Safety Magnetic Field Safety  

E-Print Network [OSTI]

Magnetic Field Safety Training #12;Magnetic Field Safety Strong Magnetic Fields exist around energized magnets. High magnetic fields alone are a recognized hazard only for personnel with certain medical conditions such as pacemakers, magnetic implants, or embedded shrapnel. In addition, high magnetic

McQuade, D. Tyler

102

THE SIZE DISTRIBUTION OF PARTICLES IN THE OCEAN  

Science Journals Connector (OSTI)

Norsk-Hvalfangst-Tid. 45 ( 9) : 469480. McLA~N,. I. A. 1965. Some relationships bc- tween temperature and egg size, body size, development rate and fecundity ...

1999-12-25T23:59:59.000Z

103

Overview of Detailed Chemical Speciation and Particle Sizing...  

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

Detailed Chemical Speciation and Particle Sizing for Diesel Exhaust, Both Real Time and Filter Based Measurements Overview of Detailed Chemical Speciation and Particle Sizing for...

104

Remote Sensing of Cirrus Particle Size Vertical Profile Using...  

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

inhomogeneity in terms of ice crystal sizes and shapes. The vertical variation of ice crystal size can alter the radiative heatingcooling profiles in cirrus cloudy...

105

Small- and Medium-Size Building Automation and Control System...  

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

Small- and Medium-Size Building Automation and Control System Needs: Scoping Study Small- and Medium-Size Building Automation and Control System Needs: Scoping Study Emerging...

106

Nonmonotone line search methods with variable sample size  

E-Print Network [OSTI]

The nonmonotone line search framework is embedded with a variable sample size ... the line search combines well with the variable sample size scheme as.

2014-02-17T23:59:59.000Z

107

Critical angle refractometry and sizing of bubble clouds  

Science Journals Connector (OSTI)

The principle of the critical angle refractometry and sizing technique is extended to characterize the size distribution and the mean refractive index of clouds of bubbles. For a...

Onofri, Fabrice; Krysiek, Mariusz; Mroczka, Janusz

2007-01-01T23:59:59.000Z

108

Sample sizes for confidence limits for reliability.  

SciTech Connect (OSTI)

We recently performed an evaluation of the implications of a reduced stockpile of nuclear weapons for surveillance to support estimates of reliability. We found that one technique developed at Sandia National Laboratories (SNL) under-estimates the required sample size for systems-level testing. For a large population the discrepancy is not important, but for a small population it is important. We found that another technique used by SNL provides the correct required sample size. For systems-level testing of nuclear weapons, samples are selected without replacement, and the hypergeometric probability distribution applies. Both of the SNL techniques focus on samples without defects from sampling without replacement. We generalized the second SNL technique to cases with defects in the sample. We created a computer program in Mathematica to automate the calculation of confidence for reliability. We also evaluated sampling with replacement where the binomial probability distribution applies.

Darby, John L.

2010-02-01T23:59:59.000Z

109

Nuclear sizes and the isotope shift  

Science Journals Connector (OSTI)

Darwin-Foldy nuclear-size corrections in electronic atoms and nuclear radii are discussed from the nuclear-physics perspective. The interpretation of precise isotope-shift measurements is formalism dependent, and care must be exercised in interpreting these results and those obtained from relativistic electron scattering from nuclei. We strongly advocate that the entire nuclear-charge operator be used in calculating nuclear-size corrections in atoms rather than relegating portions of it to the nonradiative recoil corrections. A preliminary examination of the intrinsic deuteron radius obtained from isotope-shift measurements suggests the presence of small meson-exchange currents (exotic binding contributions of relativistic order) in the nuclear charge operator, which contribute approximately 12%.

J. L. Friar; J. Martorell; D. W. L. Sprung

1997-12-01T23:59:59.000Z

110

Angular Size-Redshift: Experiment and Calculation  

E-Print Network [OSTI]

In this paper the next attempt is made to clarify the nature of the Euclidean behavior of the boundary in the angular size-redshift cosmological test. It is shown experimentally that this can be explained by the selection determined by anisotropic morphology and anisotropic radiation of extended radio sources. A catalogue of extended radio sources with minimal flux densities of about 0.01 Jy at 1.4 GHz was compiled for conducting the test. Without the assumption of their size evolution, the agreement between the experiment and calculation was obtained both in the Lambda CDM model (Omega_m=0.27 , Omega_v=0.73.) and the Friedman model (Omega = 0.1 ).

Amirkhanyan, V R

2015-01-01T23:59:59.000Z

111

Vibration of submillimeter-size supported droplets  

Science Journals Connector (OSTI)

We study the fundamental vibration mode of supported submillimeter-size droplets. Using an analogy with a simple oscillator we derive a semianalytical expression for the eigenfrequency and the scaling law of the energy dissipation within the droplet. The experimental results obtained for mercury drops deposited on glass are compared with the model. The agreement is satisfactory for the eigenfrequencies on the whole range of size we considered (from 0.04 to 0.9mm). The scaling law for the dissipation is recovered for radii larger than 0.1mm but fails for smaller droplets. We finally discuss possible applications related to the use of vibrations to effectively reduce the hysteresis of the wetting angle and therefore increase the mobility of the supported droplets.

Franck Celestini and Richard Kofman

2006-04-07T23:59:59.000Z

112

SAFT-UT field experience  

SciTech Connect (OSTI)

This paper reports on a three-year program at the Battelle Pacific Northwest Laboratory to transfer the synthetic aperture focusing technique (SAFT) technology that was developed at the University of Michigan into the field. A brief overview is given of the program and the field system is described. The main portion of the paper is devoted to the experience of using the SAFT system in a third-party role to aid in resolving inspection inconsistencies between several different UT inservice inspections results for intergranular stress corrosion cracks (IGSCC) in boiling water reactor (BWR) piping. A new method of scanning using a modified tandem technique (called TSAFT) was also developed and successfully employed in the field. The SAFT images made cracks easy to identify and the TSAFT data were easy to interpret for depth sizing. However, the most significant fact about the system is that it did work very well under field conditions even though a number of improvements were identified as a result of each field trip. These improvements are discussed in the paper. 6 refs., 15 figs.

Doctor, S.R.; Crawford, S.L.; Hall, T.E.

1985-03-01T23:59:59.000Z

113

Missile sizing for ascent-phase intercept  

SciTech Connect (OSTI)

A computer code has been developed to determine the size of a ground-launched, multistage missile which can intercept a theater ballistic missile before it leaves the atmosphere. Typical final conditions for the inteceptor are 450 km range, 60 km altitude, and 80 sec flight time. Given the payload mass (35 kg), which includes a kinetic kill vehicle, and achievable values for the stage mass fractions (0.85), the stage specific impulses (290 sec), and the vehicle density (60 lb/ft{sup 3}), the launch mass is minimized with respect to the stage payload mass ratios, the stage burn times, and the missile angle of attack history subject to limits on the angle of attack (10 deg), the dynamic pressure (60,000 psf), and the maneuver load (200,000 psf deg). For a conical body, the minimum launch mass is approximately 1900 kg. The missile has three stages, and the payload coasts for 57 sec. A trade study has been performed by varying the flight time, the range, and the dynamic pressure Emits. With the results of a sizing study for a 70 lb payload and q{sub max} = 35,000 psf, a more detailed design has been carried out to determine heat shield mass, tabular aerodynamics, and altitude dependent thrust. The resulting missile has approximately 100 km less range than the sizing program predicted primarily because of the additional mass required for heat protection. On the other hand, launching the same missile from an aircraft increases its range by approximately 100 km. Sizing the interceptor for air launch with the same final conditions as the ground-launched missile reduces its launch mass to approximately 1000 kg.

Hull, D.G. [Univ. of Texas, Austin, TX (United States). Dept. of Aerospace Engineering and Engineering Mechanics; Salguero, D.E. [Sandia National Labs., Albuquerque, NM (United States)

1994-11-01T23:59:59.000Z

114

Nanoconfined catalytic Ångström-size motors  

E-Print Network [OSTI]

Chemically-powered synthetic micron and nano-scale motors that propel themselves in solution are being intensively studied because of the wide range of potential applications that exploit their directed motion. Recent experiments have shown that, even on the molecular scale, small-molecule catalysts and single enzyme molecules exhibit properties that have been attributed to self-propulsion. Simulations of very small {\\AA}ngstr\\"om-size synthetic motors in bulk solution have shown similar effects. Applications of such small motors in the cell or in microfluidic devices require knowledge of how these motors interact with boundaries. Molecular dynamics is used to investigate the properties of {\\AA}ngstr\\"om-size synthetic chemically-powered motors confined between walls separated by distances of tens of nanometers. Evidence for strong structural ordering of the motors between the walls, which reflects the finite size of solvent molecules and depends on solvent exclusion forces, is provided. Dynamical properties, such as average motor velocity, orientational relaxation and mean square displacement, are anisotropic and depend on the distance from the walls. This research presents information needed for potential applications that use these motors in the complex confined geometries encountered in biology and the laboratory.

Peter H. Colberg; Raymond Kapral

2015-01-13T23:59:59.000Z

115

Novel probe for the in situ measurement of particle size distributions  

SciTech Connect (OSTI)

The development of a novel instrument for the in situ measurement of particle size distributions in the size range of 3-200 {mu}m is presented. The system uses high magnification optics, housed in a stainless steel probe, which can be inserted into a process stream or vessel, where images of the dispersed phase particles are recorded. A pulsed light source is used to freeze the motion of the particles in the field of view and present an image of the dispersion onto a charge-coupled device camera chip. The images are digitized and stored for later processing. Automated image analysis routines have been developed for extracting particle size information from the acquired images. An extensive validation of the instrument has been performed for spherical particles, which has produced several important findings. First, a size bias in the depth of field (DOF) exists which favors larger particles. An experiment procedure was developed for the direct measurement of DOF size biases. Additionally, the behavior of the instrument is dependent on the environmental conditions, such as dispersed phase concentration and the difference in index of refraction between continuous phase and dispersed phase.

Francis, Michael K.; Calabrese, Richard V.; Phongikaroon, Supathorn [Department of Chemical and Biomolecular Engineering, University of Maryland, College Park, Maryland 20742 (United States); Pyroprocessing Technology Department, Idaho National Laboratory, Materials and Fuel Complex, MS 6180, Idaho Falls, Idaho 83415 (United States)

2006-12-15T23:59:59.000Z

116

Size distribution functions for rock fragments  

Science Journals Connector (OSTI)

Abstract The capacity of 17 functions to represent the size distribution of fragmented rock is assessed on 1234 data sets of screened fragments from blasted and crushed rock of different origins, of sizes ranging from 0.002 to 2000 mm. The functions evaluated are Weibull, Grady, log-normal, log-logistic and Gilvarry, in their plain, re-scaled and bi-component forms, and also the Swebrec distribution and its bi-component extension. In terms of determination coefficient, the Weibull is the best two-parameter function for describing rock fragments, with a median R2 of 0.9886. Among re-scaled, three-parameter distributions, Swebrec and Weibull lead with median R2 values of 0.9976 and 0.9975, respectively. Weibull and Swebrec distributions tie again as best bi-component, with median R2 of 0.9993. Re-scaling generally reduces the unexplained variance by a factor of about four with respect to the plain function; bi-components further reduce this unexplained variance by a factor of about two to three. Size-prediction errors are calculated in four zones: coarse, central, fines and very fines. Expected and maximum errors in the different ranges are discussed. The extended Swebrec is the best fitting function across the whole passing range for most types of data. Bimodal Weibull and Grady distributions follow, except for the coarse range, where re-scaled forms are preferable. Considering the extra difficulty in fitting a five-parameter function with respect to a three-parameter one, re-scaled functions are the best choice if data do not extend far below 20% passing. If the focus is on the fine range, some re-scaled distributions may still do (Weibull, Swebrec and Grady, with maximum errors of 15–20% at 8% passing), but serious consideration should be given to bi-component distributions, especially extended Swebrec, bimodal Weibull and bimodal Grady.

José A. Sanchidrián; Finn Ouchterlony; Pablo Segarra; Peter Moser

2014-01-01T23:59:59.000Z

117

The Cherenkov Telescope Array Large Size Telescope  

E-Print Network [OSTI]

The two arrays of the Very High Energy gamma-ray observatory Cherenkov Telescope Array (CTA) will include four Large Size Telescopes (LSTs) each with a 23 m diameter dish and 28 m focal distance. These telescopes will enable CTA to achieve a low-energy threshold of 20 GeV, which is critical for important studies in astrophysics, astroparticle physics and cosmology. This work presents the key specifications and performance of the current LST design in the light of the CTA scientific objectives.

Ambrosi, G; Baba, H; Bamba, A; Barceló, M; de Almeida, U Barres; Barrio, J A; Bigas, O Blanch; Boix, J; Brunetti, L; Carmona, E; Chabanne, E; Chikawa, M; Colin, P; Conteras, J L; Cortina, J; Dazzi, F; Deangelis, A; Deleglise, G; Delgado, C; Díaz, C; Dubois, F; Fiasson, A; Fink, D; Fouque, N; Freixas, L; Fruck, C; Gadola, A; García, R; Gascon, D; Geffroy, N; Giglietto, N; Giordano, F; Grañena, F; Gunji, S; Hagiwara, R; Hamer, N; Hanabata, Y; Hassan, T; Hatanaka, K; Haubold, T; Hayashida, M; Hermel, R; Herranz, D; Hirotani, K; Inoue, S; Inoue, Y; Ioka, K; Jablonski, C; Kagaya, M; Katagiri, H; Kishimoto, T; Kodani, K; Kohri, K; Konno, Y; Koyama, S; Kubo, H; Kushida, J; Lamanna, G; Flour, T Le; López-Moya, M; López, R; Lorenz, E; Majumdar, P; Manalaysay, A; Mariotti, M; Martínez, G; Martínez, M; Mazin, D; Miranda, J M; Mirzoyan, R; Monteiro, I; Moralejo, A; Murase, K; Nagataki, S; Nakajima, D; Nakamori, T; Nishijima, K; Noda, K; Nozato, A; Ohira, Y; Ohishi, M; Ohoka, H; Okumura, A; Orito, R; Panazol, J L; Paneque, D; Paoletti, R; Paredes, J M; Pauletta, G; Podkladkin, S; Prast, J; Rando, R; Reimann, O; Ribó, M; Rosier-Lees, S; Saito, K; Saito, T; Saito, Y; Sakaki, N; Sakonaka, R; Sanuy, A; Sasaki, H; Sawada, M; Scalzotto, V; Schultz, S; Schweizer, T; Shibata, T; Shu, S; Sieiro, J; Stamatescu, V; Steiner, S; Straumann, U; Sugawara, R; Tajima, H; Takami, H; Tanaka, S; Tanaka, M; Tejedor, L A; Terada, Y; Teshima, M; Totani, T; Ueno, H; Umehara, K; Vollhardt, A; Wagner, R; Wetteskind, H; Yamamoto, T; Yamazaki, R; Yoshida, A; Yoshida, T; Yoshikoshi, T

2013-01-01T23:59:59.000Z

118

LNG fleet increases in size and capabilities  

SciTech Connect (OSTI)

The LNG fleet as of early 1997 consisted of 99 vessels with total cargo capacity of 10.7 million cu m, equivalent to approximately 4.5 million tons. One of the newest additions to the fleet, the 137,000-cu m tanker Al Zubarah, is five times the size of the original commercial vessel Methane Princess. Al Zubarah`s first loading of more than 60,000 tons occurred in December 1996 for deliver to Japanese buyers from the newly commissioned Qatargas LNG plant at Ras Laffan. That size cargo contains enough clean-burning energy to heat 60,000 homes in Japan for 1 month. Measuring nearly 1,000 ft long, the tanker is among the largest in the industry fleet and joined 70 other vessels of more than 100,000 cu m. Most LNG tankers built since 1975 have been larger-capacity vessels. The paper discusses LNG shipping requirements, containment systems, vessel design, propulsion, construction, operations and maintenance, and the future for larger vessels.

Linser, H.J. Jr.; Drudy, M.J.; Endrizzi, F.; Urbanelli, A.A. [Mobil Shipping and Transportation, Fairfax, VA (United States)

1997-06-02T23:59:59.000Z

119

Performance limits of heliostat fields  

SciTech Connect (OSTI)

Geometric and thermodynamic arguments are used to derive upper limits on the performance of a solar energy collection system, consisting of an axisymmetric heliostat field, a solar tower, secondary optics and a black receiver. Performance limits on collected power, concentration, and work output are presented. Performance of tower systems with several secondary optics options is compared: tower-top Compound Parabolic Concentrator (CPC), Tailored Edge-Ray Concentrator (TERC) approximated by a cone, and Cassegrainian with ground-level CPC or Compound Elliptic Concentrator (CEC). Optimized ray tracing is used to generate the design parameters of the secondary concentrators that yield the highest optical efficiency. The results show that the tower-top Cone provides the best performance regarding both concentration and efficiency, except for very large fields. The Cassegrainian designs come in second, but become equal and even better than the Cone for large fields. The results for the Cassegrainian are sensitive to the value of the reflectivity, due to the additional reflections incurred. The choice of a CEC is better than a CPC for the terminal concentration in a Cassegrainian system, but the difference is small. The suitability of the different design options for high-temperature solar applications is discussed. The recommendations regarding optical configuration depend on field size, as well as on application-specific constraints.

Kribus, A.; Krupkin, V.; Yogev, A. [Weizmann Inst. of Science, Rehovot (Israel). Environmental Sciences and Energy Research Dept.; Spirkl, W. [Ludwig-Maximilians-Univ. Muenchen (Germany). Sektion Physik

1998-11-01T23:59:59.000Z

120

MAGNETIC FIELDS IN THE HR DIAGRAM Jeffrey L. Linsky  

E-Print Network [OSTI]

MAGNETIC FIELDS IN THE HR DIAGRAM Jeffrey L. Linsky JILA/University of Colorado and NIST Solar IN SOLAR AND STELLAR ATMOSPHERES Heating Processes: MHD wave processes, rapid field annihilation processes has different properties and cell sizes than nor­ mal convection Wind: Alfv'en waves and other MHD

Linsky, Jeffrey L.

Note: This page contains sample records for the topic "field size mmboe" 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.


121

Sizing a New Water Heater | Department of Energy  

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

Sizing a New Water Heater Sizing a New Water Heater Sizing a New Water Heater May 29, 2012 - 7:16pm Addthis Is your water heater the right size for you house? | Photo credit ENERGY STAR® Is your water heater the right size for you house? | Photo credit ENERGY STAR® A properly sized water heater will meet your household's hot water needs while operating more efficiently. Therefore, before purchasing a water heater, make sure it's the correct size. Here you'll find information about how to size these systems: Tankless or demand-type water heaters Solar water heating system Storage and heat pump (with tank) water heaters. For sizing combination water and space heating systems -- including some heat pump systems, and tankless coil and indirect water heaters -- consult a qualified contractor.

122

Finite-size effects on the phase diagram of difermion condensates in two-dimensional four-fermion interaction models  

SciTech Connect (OSTI)

We investigate finite-size effects on the phase structure of chiral and difermion condensates at finite temperature and density in the framework of the two-dimensional large-N Nambu-Jona-Lasinio model. We take into account size-dependent effects by making use of zeta-function and compactification methods. The thermodynamic potential and the gap equations for the chiral and difermion condensed phases are then derived in the mean-field approximation. Size-dependent critical lines separating the different phases are obtained considering antiperiodic boundary conditions for the spatial coordinate.

Abreu, L. M.; Malbouisson, J. M. C. [Instituto de Fisica, Universidade Federal da Bahia, 40210-340, Salvador, BA (Brazil); Malbouisson, A. P. C. [Centro Brasileiro de Pesquisas Fisicas, MCT, 22290-180, Rio de Janeiro, RJ (Brazil)

2011-01-15T23:59:59.000Z

123

Pore size distribution and accessible pore size distribution in bituminous coals  

SciTech Connect (OSTI)

The porosity and pore size distribution of coals determine many of their properties, from gas release to their behavior on carbonization, and yet most methods of determining pore size distribution can only examine a restricted size range. Even then, only accessible pores can be investigated with these methods. Small-angle neutron scattering (SANS) and ultra small-angle neutron scattering (USANS) are increasingly used to characterize the size distribution of all of the pores non-destructively. Here we have used USANS/SANS to examine 24 well-characterized bituminous and subbituminous coals: three from the eastern US, two from Poland, one from New Zealand and the rest from the Sydney and Bowen Basins in Eastern Australia, and determined the relationships of the scattering intensity corresponding to different pore sizes with other coal properties. The range of pore radii examinable with these techniques is 2.5 nm to 7 {micro}m. We confirm that there is a wide range of pore sizes in coal. The pore size distribution was found to be strongly affected by both rank and type (expressed as either hydrogen or vitrinite content) in the size range 250 nm to 7 {micro}m and 5 to 10 nm, but weakly in intermediate regions. The results suggest that different mechanisms control coal porosity on different scales. Contrast-matching USANS and SANS were also used to determine the size distribution of the fraction of the pores in these coals that are inaccessible to deuterated methane, CD{sub 4}, at ambient temperature. In some coals most of the small ({approx} 10 nm) pores were found to be inaccessible to CD{sub 4} on the time scale of the measurement ({approx} 30 min - 16 h). This inaccessibility suggests that in these coals a considerable fraction of inherent methane may be trapped for extended periods of time, thus reducing the effectiveness of methane release from (or sorption by) these coals. Although the number of small pores was less in higher rank coals, the fraction of total pores that was inaccessible was not rank dependent. In the Australian coals, at the 10 nm to 50 nm size scales the pores in inertinites appeared to be completely accessible to CD{sub 4}, whereas the pores in the vitrinite were about 75% inaccessible. Unlike the results for total porosity that showed no regional effects on relationships between porosity and coal properties, clear regional differences in the relationships between fraction of closed porosity and coal properties were found. The 10 to 50 nm-sized pores of inertinites of the US and Polish coals examined appeared less accessible to methane than those of the inertinites of Australian coals. This difference in pore accessibility in inertinites may explain why empirical relationships between fluidity and coking properties developed using Carboniferous coals do not apply to Australian coals.

Sakurovs, Richard [ORNL; He, Lilin [ORNL; Melnichenko, Yuri B [ORNL; Radlinski, Andrzej Pawell [ORNL; Blach, Tomasz P [ORNL

2012-01-01T23:59:59.000Z

124

Golden Field Office Contacts  

Broader source: Energy.gov [DOE]

Field contacts at the U.S. Department of Energy's Golden Field Office who support the Federal Energy Management Program (FEMP)

125

Quantum Field Theory & Gravity  

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

Field Theory & Gravity Quantum Field Theory & Gravity Understanding discoveries at the Energy, Intensity, and Cosmic Frontiers Get Expertise Rajan Gupta (505) 667-7664 Email...

126

What tells Gravity on the shape and size of an electron  

E-Print Network [OSTI]

Gravitational field of an electron, fixed by experimental values of its mass, spin, charge and magnetic moment, is given by the metric of Kerr-Newman (KN) solution. Unexpectedly, this metric contains a singular ring of the Compton radius, which should be regulated resulting in a weeak and smooth source. The consistent source takes the form of an oblate vacuum bubble, bounded by a closed string of the Compton radius. The bubble turns out to be relativistically rotating and should be filled by a coherently oscillating Higgs field in a false vacuum state. The Compton size of the bubble shrinks sharply to a "point" for relativistic particle.

Burinskii, Alexander

2014-01-01T23:59:59.000Z

127

Experimental manipulation of female reproduction reveals an intraspecific egg size clutch size trade-off  

Science Journals Connector (OSTI)

...production and, in turn, decreasing the plasma pool of yolk precursors below the level...females showed decreased egg size and plasma yolk-precursor levels, both were within...1991 The evolution of parental care. Princeton University Press. Delville, Y. & Balthazart...

2001-01-01T23:59:59.000Z

128

Sandia National Laboratories: Glitter-Sized Photovoltaic Cells...  

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

ClimateECEnergyGlitter-Sized Photovoltaic Cells in Utility-Scale Solar Power Systems Glitter-Sized Photovoltaic Cells in Utility-Scale Solar Power Systems Building a Microgrid Greg...

129

Brain size of Homo floresiensis and its evolutionary implications  

Science Journals Connector (OSTI)

...research-article Research articles 1001 70 144 133 Brain size of Homo floresiensis and its evolutionary...challenge in our understanding of human brain evolution. Some researchers hypothesize dramatic dwarfing of relative brain size from Homo erectus presumably without...

2013-01-01T23:59:59.000Z

130

Evaluation of heliostat field/receiver configurations  

SciTech Connect (OSTI)

This report evaluates and compares north heliostat field/cavity receiver configurations and surround heliostat field/external receiver configurations. The receiver coolants are molten nitrate salts and liquid sodium. Both field/receiver configurations use molten salt thermal storage; the sodium receiver is thermally connected to thermal storage by a sodium-to-salt heat exchanger. The heliostat filed size is fixed at 1,000,000 square meters of reflective area, and the delivered molten salt temperature is fixed at 566/sup 0/C. The delivered thermal power varies from 500 to 600 MW/sub t/, depending on the overall system efficiency. The generic north heliostat field/cavity receiver configurations were found to be 6 to 10 percent efficient than a generic surround field/external receiver configuration. There was little or no difference found in the transient performance of a molten salt receiver compared to a sodium receiver connected to a sodium-to-salt heat exchanger. Four configurations were of particular interest: (1) a north heliostat field/single cavity molten salt receiver, (2) a surround heliostat field/external cylinder molten salt receiver, (3) a surround heliostat field/external cylinder liquid sodium receiver, and (4) a north heliostat field/single cavity liquid sodium receiver. It was found that the surround field/liquid sodium external receiver configuration may provide energy at a 14 percent lower levelized energy cost than a north field/molten salt cavity receiver configuration. However, the cost advantage of the surround field/liquid sodium external receiver is not conclusive because of uncertainties in system component costs.

Faas, S.E.; Winters, W.S.

1986-03-01T23:59:59.000Z

131

Prediction of effective genome size in metagenomic samples  

Science Journals Connector (OSTI)

A novel computational approach shows a link between genome size and habitat from analysis of environmental metagenomic DNA reads.

Jeroen Raes; Jan O Korbel; Martin J Lercher; Christian von Mering; Peer Bork

2007-01-15T23:59:59.000Z

132

Size structuring of planktonic communities : biological rates and ecosystem dynamics  

E-Print Network [OSTI]

Bight and central equatorial Pacific show increasing growth rates with size, while those cells measured in the Somali Basin,

Taniguchi, Darcy Anne Akiko

2013-01-01T23:59:59.000Z

133

Estimating Dataset Size Requirements for Classifying DNA Microarray Data  

E-Print Network [OSTI]

Estimating Dataset Size Requirements for Classifying DNA Microarray Data S. Mukherjee*+#1 , P methodology for estimating dataset size requirements for classifying microarray data using learning curves is introduced. The goal is to use existing classification results to estimate dataset size requirements

Poggio, Tomaso

134

Gaussian random field models of aerogels  

Science Journals Connector (OSTI)

A model capable of predicting pore characteristics and rendering representative images of porous materials is described. A long-term goal is to discriminate between open and closed porosities. Aerogels are modeled by intersecting excursion sets of two independent Gaussian random fields. The parameters of these fields are obtained by matching small-angle neutron scattering data with the scattering function for the model. The chord-length probability density functions are then computed for the model which contain partial clustering information for the aerogels. Visualizations of this model are performed and compared to electron microscopy images and gas adsorption pore size distributions.

J. Quintanilla; R. F. Reidy; B. P. Gorman; D. W. Mueller

2003-01-01T23:59:59.000Z

135

Coulomb gaps in a strong magnetic field  

Science Journals Connector (OSTI)

We report on a study of interaction effects in the tunneling density of states of a disordered two-dimensional electron gas in the strong magnetic field limit where only the lowest Landau level is occupied. Interactions in the presence of disorder are accounted for by performing finite-size self-consistent Hartree-Fock calculations. We find evidence for the formation of a pseudogap with a tunneling density of states which vanishes at the Fermi energy.

S.-R. Eric Yang and A. H. MacDonald

1993-06-28T23:59:59.000Z

136

Method to study fracture fluid polymer degradation using size exclusion chromatography. [Size exclusion chromatography  

SciTech Connect (OSTI)

A Size Exclusion Chromatography system is described which can be used to study conditions affecting the degradation of fracturing fluid polymers. In general, the effects of breaker type and concentration, temperature, and other additives to the fracturing fluid system can be monitored using this technique. Identification of effective conditions for polymer degradation may result in better design of fracturing fluids in order to minimize fracture and formation damage. 18 references, 20 figures, 6 tables.

Gall, B.L.; Raible, C.J.

1984-02-01T23:59:59.000Z

137

The Effect of PV Array Size and Battery Size on the Economics of PV/Diesel/Battery Hybrid RAPS Systems  

E-Print Network [OSTI]

Wh. INTRODUCTION A diesel hybrid system, incorporating a battery and inverter, can often provide power at a lower profile used for this study Fixed Power System Parameters The diesel and inverter were both sizedThe Effect of PV Array Size and Battery Size on the Economics of PV/Diesel/Battery Hybrid RAPS

138

Building Technologies Office: Small- and Medium-Sized Building Automation  

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

Small- and Medium-Sized Small- and Medium-Sized Building Automation and Control System Needs: Scoping Study Research Project to someone by E-mail Share Building Technologies Office: Small- and Medium-Sized Building Automation and Control System Needs: Scoping Study Research Project on Facebook Tweet about Building Technologies Office: Small- and Medium-Sized Building Automation and Control System Needs: Scoping Study Research Project on Twitter Bookmark Building Technologies Office: Small- and Medium-Sized Building Automation and Control System Needs: Scoping Study Research Project on Google Bookmark Building Technologies Office: Small- and Medium-Sized Building Automation and Control System Needs: Scoping Study Research Project on Delicious Rank Building Technologies Office: Small- and Medium-Sized Building

139

The influence of fractal size distribution of covers on radon exhalation from uranium mill tailings  

Science Journals Connector (OSTI)

Tailings produced during mining and milling of uranium ores represent potentially large volumes of low level radioactive materials. A typical environmental problem associated with mill tailings is radon emanation. Covering tailings is widely applied to reduce radon exhalation rate. In this paper, the fractal theories and field covering tests are used to study the fractal characters of size distribution of six types of covering materials, including waste rock, sand, laterite, kaolin, mixture of sand and laterite, and mixture of waste rock and laterite, and their influences on radon exhalation. The size distributions of uranium tailings and the six aforementioned covering materials all exhibit a good fractal structure. The contents of fine grain increase with the increasing value of fractal dimension. The results of field radon measurement show that the radon emanation rate of tailings without covers is 14.7–18.6 Bq/m2 s. Covering tests were carried out of the six abovementioned covering materials with thickness of 0.4 m, 0.8 m, 1.2 m, 1.6 m and 2.0 m. The results indicate that the application of these materials for cover layers can decrease the radon exhalation rate markedly. The effectiveness of a cover layer in reducing radon exhalation is related to its fractal texture of size distribution. Under the same thickness conditions, the attenuation coefficient of radon exhalation rate increases with the increasing fractal dimension of size distribution of covers. The empirical expressions of the attenuation coefficients in relation to fractal dimension D of size distribution and thickness x of covers is obtained for evaluating the effectiveness of final covers for uranium tailings impoundments.

Kaixuan Tan; Zehua Liu; Liangshu Xia; Junwen Lv; Hanqiao Hu

2012-01-01T23:59:59.000Z

140

Kuwaiti reconstruction project unprecedented in size, complexity  

SciTech Connect (OSTI)

There had been no challenge like it: a desert emirate ablaze; its main city sacked; the economically crucial oil industry devastated; countryside shrouded in smoke from oil well fires and littered with unexploded ordnance, disabled military equipment, and unignited crude oil. Like the well-documented effort that brought 749 burning wells under control in less than 7 months, Kuwaiti reconstruction had no precedent. Unlike the firefight, reconstruction is no-where complete. It nevertheless has placed two of three refineries back on stream, restored oil production to preinvasion levels, and repaired or rebuilt 17 of 26 oil field gathering stations. Most of the progress has come since the last well fire went out on Nov. 6, 1991. Expatriates in Kuwait since the days of Al-Awda- the return,' in Arabic- attribute much of the rapid progress under Al-Tameer- the reconstruction'- to decisions and preparations made while the well fires still raged. The article describes the planning for Al-Awda, reentering the country, drilling plans, facilities reconstruction, and special problems.

Tippee, B.

1993-03-15T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

Reservoir simulation of co2 sequestration and enhanced oil recovery in Tensleep Formation, Teapot Dome field  

E-Print Network [OSTI]

Teapot Dome field is located 35 miles north of Casper, Wyoming in Natrona County. This field has been selected by the U.S. Department of Energy to implement a field-size CO2 storage project. With a projected storage of 2.6 million tons of carbon...

Gaviria Garcia, Ricardo

2006-04-12T23:59:59.000Z

142

An analytical method to calculate equivalent fields to irregular symmetric and asymmetric photon fields  

SciTech Connect (OSTI)

Equivalent field is frequently used for central axis depth-dose calculations of rectangular- and irregular-shaped photon beams. As most of the proposed models to calculate the equivalent square field are dosimetry based, a simple physical-based method to calculate the equivalent square field size was used as the basis of this study. The table of the sides of the equivalent square or rectangular fields was constructed and then compared with the well-known tables by BJR and Venselaar, et al. with the average relative error percentage of 2.5 ± 2.5% and 1.5 ± 1.5%, respectively. To evaluate the accuracy of this method, the percentage depth doses (PDDs) were measured for some special irregular symmetric and asymmetric treatment fields and their equivalent squares for Siemens Primus Plus linear accelerator for both energies, 6 and 18 MV. The mean relative differences of PDDs measurement for these fields and their equivalent square was approximately 1% or less. As a result, this method can be employed to calculate equivalent field not only for rectangular fields but also for any irregular symmetric or asymmetric field.

Tahmasebi Birgani, Mohamad J. [Department of Radiation Therapy, Golestan Hospital, JondiShapour University of Medical Science, Ahvaz (Iran, Islamic Republic of); Department of Medical Physics, JondiShapour University of Medical Sciences, Ahvaz (Iran, Islamic Republic of); Chegeni, Nahid, E-mail: nchegen@yahoo.com [Department of Medical Physics, JondiShapour University of Medical Sciences, Ahvaz (Iran, Islamic Republic of); Zabihzadeh, Mansoor; Hamzian, Nima [Department of Medical Physics, JondiShapour University of Medical Sciences, Ahvaz (Iran, Islamic Republic of)

2014-04-01T23:59:59.000Z

143

Determination of Electric-Field, Magnetic-Field, and Electric...  

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

Electric-Field, Magnetic-Field, and Electric-Current Distributions of Infrared Optical Antennas: A Near-Field Determination of Electric-Field, Magnetic-Field, and Electric-Current...

144

Golden Field Office  

Office of Energy Efficiency and Renewable Energy (EERE)

The Golden Field Office was designated a Department of Energy field office in December 1992 to provide EERE with enhanced capability to develop and commercialize renewable energy and energy...

145

Smoothness- transferred random field  

E-Print Network [OSTI]

We propose a new random field (RF) model, smoothness-transfer random field (ST-RF) model, for image modeling. In the objective function of RF models, smoothness energy is defined with compatibility function to capture the ...

Wei, Donglai

2013-01-01T23:59:59.000Z

146

Heliostat Field Performance  

Science Journals Connector (OSTI)

The heliostat is the first subsystem in a central ... report of the SSPS Central Receiver System.The heliostat field was designed and manufactured by the ... Corporation.The original field design consisted of 160...

Pierre Wattiez; Juan Ramos; Sevillana…

1986-01-01T23:59:59.000Z

147

Quantized Gravitational Field. II  

Science Journals Connector (OSTI)

A consistent formulation is given for the quantized gravitational field in interaction with integer spin fields. Lorentz transformation equivalence within a class of physically distinguished coordinate systems is verified.

Julian Schwinger

1963-11-01T23:59:59.000Z

148

Triangular Ising antiferromagnet in a staggered field  

Science Journals Connector (OSTI)

We study the equilibrium properties of the nearest-neighbor Ising antiferromagnet on a triangular lattice in the presence of a staggered field conjugate to one of the degenerate ground states. Using a mapping of the ground states of the model without the staggered field to dimer coverings on the dual lattice, we classify the ground states into sectors specified by the number of “strings.” We show that the effect of the staggered field is to generate long-range interactions between strings. In the limiting case of the antiferromagnetic coupling constant J becoming infinitely large, we prove the existence of a phase transition in this system and obtain a finite lower bound for the transition temperature. For finite J, we study the equilibrium properties of the system using Monte Carlo simulations with three different dynamics. We find that in all the three cases, equilibration times for low-field values increase rapidly with system size at low temperatures. Due to this difficulty in equilibrating sufficiently large systems at low temperatures, our finite-size scaling analysis of the numerical results does not permit a definite conclusion about the existence of a phase transition for finite values of J. A surprising feature in the system is the fact that unlike usual glassy systems, a zero-temperature quench almost always leads to the ground state, while a slow cooling does not.

Abhishek Dhar; Pinaki Chaudhuri; Chandan Dasgupta

2000-03-01T23:59:59.000Z

149

Electric double layer for spherical particles in salt-free concentrated suspensions including ion size effects  

E-Print Network [OSTI]

The equilibrium electric double layer (EDL) that surrounds the colloidal particles is determinant for the response of a suspension under a variety of static or alternating external fields. An ideal salt-free suspension is composed by the charged colloidal particles and the ionic countercharge released by the charging mechanism. The existing macroscopic theoretical models can be improved by incorporating different ionic effects usually neglected in previous mean-field approaches, which are based on the Poisson-Boltzmann equation (PB). The influence of the finite size of the ions seems to be quite promising because it has been shown to predict phenomena like charge reversal, which has been out of the scope of classical PB approximations. In this work we numerically obtain the surface electric potential and the counterions concentration profiles around a charged particle in a concentrated salt-free suspension corrected by the finite size of the counterions. The results show the large importance of such corrections for moderate to high particle charges at every particle volume fraction, specially, when a region of closest approach of the counterions to the particle surface is considered. We conclude that finite ion size considerations are obeyed for the development of new theoretical models to study nonequilibrium properties in concentrated colloidal suspensions, particularly the salt-free ones with small and highly charged particles.

R. Roa; F. Carrique; E. Ruiz-Reina

2011-02-17T23:59:59.000Z

150

Federal Energy Management Program: Assess Potential Agency Size Changes  

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

Assess Potential Assess Potential Agency Size Changes that Impact Greenhouse Gas Emissions to someone by E-mail Share Federal Energy Management Program: Assess Potential Agency Size Changes that Impact Greenhouse Gas Emissions on Facebook Tweet about Federal Energy Management Program: Assess Potential Agency Size Changes that Impact Greenhouse Gas Emissions on Twitter Bookmark Federal Energy Management Program: Assess Potential Agency Size Changes that Impact Greenhouse Gas Emissions on Google Bookmark Federal Energy Management Program: Assess Potential Agency Size Changes that Impact Greenhouse Gas Emissions on Delicious Rank Federal Energy Management Program: Assess Potential Agency Size Changes that Impact Greenhouse Gas Emissions on Digg Find More places to share Federal Energy Management Program: Assess

151

THE SIZE DISTRIBUTION OF THE NEPTUNE TROJANS AND THE MISSING INTERMEDIATE-SIZED PLANETESIMALS  

SciTech Connect (OSTI)

We present an ultra-deep survey for Neptune Trojans using the Subaru 8.2 m and Magellan 6.5 m telescopes. The survey reached a 50% detection efficiency in the R band at m{sub R} = 25.7 mag and covered 49 deg{sup 2} of sky. m{sub R} = 25.7 mag corresponds to Neptune Trojans that are about 16 km in radius (assuming an albedo of 0.05). A paucity of smaller Neptune Trojans (radii < 45 km) compared with larger ones was found. The brightest Neptune Trojans appear to follow a steep power-law slope (q = 5 {+-} 1) similar to the brightest objects in the other known stable reservoirs such as the Kuiper Belt, Jupiter Trojans, and main belt asteroids. We find a roll-over for the Neptune Trojans that occurs around a radius of r = 45 {+-} 10 km (m{sub R} = 23.5 {+-} 0.3), which is also very similar to the other stable reservoirs. All the observed stable regions in the solar system show evidence for Missing Intermediate-Sized Planetesimals (MISPs). This indicates a primordial and not collisional origin, which suggests that planetesimal formation proceeded directly from small to large objects. The scarcity of intermediate- and smaller-sized Neptune Trojans may limit them as being a strong source for the short period comets.

Sheppard, Scott S. [Department of Terrestrial Magnetism, Carnegie Institution of Washington, 5241 Broad Branch Rd. NW, Washington, DC 20015 (United States); Trujillo, Chadwick A., E-mail: sheppard@dtm.ciw.ed [Gemini Observatory, 670 North A'ohoku Place, Hilo, HI 96720 (United States)

2010-11-10T23:59:59.000Z

152

Acoustic Method for Fish Counting and Fish Sizing in Tanks  

E-Print Network [OSTI]

Counting and Fish Sizing in Tanks W.A. Kuperman and Philippedistributed among its 97 tanks to maximize feed-conversionrequires inventory- ing tanks regularly. Currently, this is

Kuperman, William A.; Roux, Philippe

2004-01-01T23:59:59.000Z

153

Development of Model Filtration Media for Investigating Size...  

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

control has been developed. Controlled pore sizes could be used to optimize high-capture efficiency with low backpressure. p-25strzelec.pdf More Documents & Publications...

154

On nano size structures for enhanced bone formation.  

E-Print Network [OSTI]

??Purpose The general aim of the present thesis was to investigate early bone response to titanium implants modified with nano size structures. Therefore, 1. a… (more)

Meirelles, Luiz

2007-01-01T23:59:59.000Z

155

Distribution, size, and bacterial colonization of pico-and nano ...  

Science Journals Connector (OSTI)

Distribution, size, and bacterial colonization of pico- and nano-detrital organic particles (DOP) in two lakes of different trophic status. Carrias, Jean-François ...

156

Sizing High Speed Micro Generators for Smart Grid Systems  

Science Journals Connector (OSTI)

This chapter presents a step by step sizing procedure of High Speed Permanent Magnet Synchronous Generators (HSPMSGs) for smart grid applications to be driven by micro-turbines....

Adel El Shahat; Ali Keyhani

2012-01-01T23:59:59.000Z

157

Dispersion of Cloud Droplet Size Distributions, Cloud Parameterization...  

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

Dispersion of Cloud Droplet Size Distributions, Cloud Parameterizations, and Indirect Aerosol Effects P. H. Daum and Y. Liu Brookhaven National Laboratory Upton, New York...

158

Optimization Online - Varying the Population Size of Artificial ...  

E-Print Network [OSTI]

Mar 2, 2005 ... Varying the Population Size of Artificial Foraging Swarms on Time Varying ... Abstract: Swarm Intelligence (SI) is the property of a system ...

Carlos Fernandes

2005-03-02T23:59:59.000Z

159

John S. Wright Forestry Center Room Sizes, Capacities, and Rates  

E-Print Network [OSTI]

Appendix 1 John S. Wright Forestry Center Room Sizes, Capacities, and Rates Room College the Wright Center contact: Marlene Mann, Administrative Assistant Forestry and Natural Resources Voice: 765

160

Size distribution of metals in particulate matter formed during combustion of residual fuel oil  

SciTech Connect (OSTI)

Between July 1992 and January 1993 three full-scale test programs were performed by Carnot for the Electric Power Research Institute and the Fuel Oil Users` Support (FOUS) Group, as part of a program for development and testing of various stack emissions models. One of the components of the program was determination of the concentrations of individual elements as a function of the size of particles suspended in flue gas. The size distributions of species are important because several aspects of system performance depend upon particulate matter size and composition: (1) the rate of ash deposition in the convection section, and activity of deposits for high temperature corrosion and SO{sub 3} formation, (2) the efficiency of precipitators for collection of individual elements, and (3) scattering of visible light and contribution of particles to stack plume opacity. Size distributions of major ash constituents were measured at the entrance and exit of the dust collectors during each of the field tests. To the authors` knowledge, these are the first reports of such measurements in residual oil-fired utility boilers. The focus, in the present paper, is on the composition of the particles entering the dust collectors.

Walsh, P. [Pennsylvania State Univ., University Park, PA (United States); Rovesti, W.C. [Electric Power Research Institute, Washington, DC (United States); Freeman, R.F. [Niagara Mohawk Power Corp., Oswego, NY (United States); Olen, K.R.; Washington, K.T.; Patrick, S.T.; Campbell, G.L.; Harper, D.S. [Florida Power & Light Co., West Palm Beach, FL (United States); Teetz, R.D.; Bennett, T.E. [Long Island Lighting Co., Glenwood Landing, NY (United States)] [and others

1994-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

BUFFERED WELL FIELD OUTLINES  

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

OIL & GAS FIELD OUTLINES FROM BUFFERED WELLS OIL & GAS FIELD OUTLINES FROM BUFFERED WELLS The VBA Code below builds oil & gas field boundary outlines (polygons) from buffered wells (points). Input well points layer must be a feature class (FC) with the following attributes: Field_name Buffer distance (can be unique for each well to represent reservoirs with different drainage radii) ...see figure below. Copy the code into a new module. Inputs: In ArcMap, data frame named "Task 1" Well FC as first layer (layer 0). Output: Polygon feature class in same GDB as the well points FC, with one polygon field record (may be multiple polygon rings) per field_name. Overlapping buffers for the same field name are dissolved and unioned (see figure below). Adds an attribute PCTFEDLAND which can be populated using the VBA

162

Intrinsic Magnetic Fields  

Science Journals Connector (OSTI)

Emission theory of electromagnetic fields.—(1) Intrinsic magnetic field. The intrinsic magnetic field of a point charge is defined as that portion of the field which cannot be annihilated by the Lorentz transformation. It is shown that the intrinsic field can be represented by lines of force carried by the same moving elements as carry the electric field, and a potential is given for it. (2) Frequency of emission of moving elements. A relation between the frequency of emission of moving elements and the number of lines of force to a tube is deduced on the assumption that the latter number is the same for the electric and magnetic fields and that each moving element marks the intersection of an electric and magnetic line of force.

Leigh Page

1923-08-01T23:59:59.000Z

163

Cross-Field Motion of Plasma Blobs in an Open Magnetic Field Line Configuration  

Science Journals Connector (OSTI)

The radial propagation of blobs generated from plasma instabilities is investigated in an open magnetic field line configuration. Blob cross-field velocities and sizes are obtained from internal probe measurements using pattern recognition. By varying the ion mass, the normalized vertical blob scale a˜ is scanned from a˜1. An analytical expression for the blob velocity including cross-field ion polarization currents, parallel currents to the sheath, and ion-neutral collisions is derived and shows good quantitative agreement with the experimental data. In agreement with previous theoretical studies, this scaling shows that, for a˜field ion polarization currents, while for a˜>1 it is limited by parallel currents to the sheath.

C. Theiler; I. Furno; P. Ricci; A. Fasoli; B. Labit; S. H. Müller; G. Plyushchev

2009-08-03T23:59:59.000Z

164

Questions and Answers - Does the size of a magnet make it stronger? How are  

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

What happens when amagnet is cut in two? What happens when a<br>magnet is cut in two? Previous Question (What happens when a magnet is cut in two?) Questions and Answers Main Index Next Question (Why does rubbing plastic and wool together create electricity?) Why does rubbing plastic and wooltogether create electricity? Does the size of a magnet make it stronger? How are magnets made? How does the shape of a magnet affect its magnetic field? Size is just one of the ways one can change the strength of a magnet. However, it can get very difficult and expensive to simply make a magnet bigger. The other way is to make it BETTER. This can mean all sorts of things. With electromagnets, the modern method to make them better is to construct a superconducting magnet. That is, the electrical coils are made

165

Market Size and Pharmaceutical Innovation Pierre Dubois, Olivier de Mouzony  

E-Print Network [OSTI]

market size and innovation in the pharmaceutical industry using improved, and newer, methods and data. We and innovation in the pharmaceutical industry. More precisely we shall estimate the elasticity of innovation (asMarket Size and Pharmaceutical Innovation Pierre Dubois, Olivier de Mouzony , Fiona Scott

Sekhon, Jasjeet S.

166

Temperature alters food web body-size structure  

Science Journals Connector (OSTI)

...ecology 1001 60 69 Temperature alters food web body-size structure Jean P. Gibert John...The consequences of these effects for food web structure are unclear because the relationships between temperature and aspects of food web structure such as predator-prey body-size...

2014-01-01T23:59:59.000Z

167

Lower bounds on sample size in structural equation modeling  

Science Journals Connector (OSTI)

Computationally intensive structural equation modeling (SEM) approaches have been in development over much of the 20th century, initiated by the seminal work of Sewall Wright. To this day, sample size requirements remain a vexing question in SEM based ... Keywords: AMOS, Common factor bias, Gini correlation, LISREL, PLS, Partial least squares, Rule of 10, SEM, Sample size, Structural equation modeling

J. Christopher Westland

2010-11-01T23:59:59.000Z

168

Molecular Squares as Molecular Sieves: Size-Selective Transport Through  

E-Print Network [OSTI]

Molecular Squares as Molecular Sieves: Size-Selective Transport Through Porous-Membrane squaresº: cyclic structures typically featuring metal-ion cor- ners and difunctional bridging ligands processes: size-selective molecular transport from a guest-containing solution to one initially free

169

Fishing destabilizes the biomass flow in the marine size spectrum  

Science Journals Connector (OSTI)

...processes underlying the biomass size spectrum, the distribution of biomass across body size classes...species. When the energy transfer is governed...Dickie 2001 The biomass spectrum. A predator-prey...and T. Platt 1978 Energy flux in the pelagic...

2012-01-01T23:59:59.000Z

170

Particle Sizing using Passive Ultrasonic Measurement of Vessel Wall Vibrations  

E-Print Network [OSTI]

Particle Sizing using Passive Ultrasonic Measurement of Vessel Wall Vibrations Gillian Carson for particle sizing using an ultrasonic transducer to measure vessel wall vibrations and 1 #12;considers in a stirred vessel, its subse- quent impact with the vessel wall, and the resulting flexural vibrations

Mottram, Nigel

171

Method of producing submicron size particles and product produced thereby  

DOE Patents [OSTI]

Submicron size particles are produced by using a sputtering process to deposit particles into a liquid. The liquid is processed to recover the particles therefrom, and the particles have sizes in the range of twenty to two hundred Angstroms. Either metallic or non-metallic particles can be produced, and the metallic particles can be used in ''metallic inks.'' 4 figs.

Bourne, R.S.; Eichman, C.C.; Welbon, W.W.

1988-05-11T23:59:59.000Z

172

Limited-Information Modeling of Loggerhead Turtle Population Size  

E-Print Network [OSTI]

Limited-Information Modeling of Loggerhead Turtle Population Size John M. Grego University of South June 28, 2012 Abstract We attempt to estimate the size of a population of female loggerhead turtles. For these loggerhead turtle data, information about individual turtles is not available. Rather, we observe only

Hitchcock, David B.

173

SBA Increases Size Standards for Waste Remediation Services &  

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

SBA Increases Size Standards for Waste Remediation Services & SBA Increases Size Standards for Waste Remediation Services & Information/Admin Support SBA Increases Size Standards for Waste Remediation Services & Information/Admin Support December 12, 2012 - 10:22am Addthis John Hale III John Hale III Director, Office of Small and Disadvantaged Business Utilization Earlier this week, the U.S. Small Business Administration announced that they have revised size definitions for small businesses in Administrative and Support & Waste Management and Remediation Services categories, saying these revisions "reflect changes in marketplace conditions." The new standards are published in the Federal Register. Increases to size standards will enable some growing small businesses in these sectors to retain their small business status; will give federal

174

An h-Adaptive Finite-Element Technique for Constructing 3D Wind Fields  

Science Journals Connector (OSTI)

An h-adaptive, mass-consistent finite-element model (FEM) has been developed for constructing 3D wind fields over irregular terrain utilizing sparse meteorological tower data. The element size in the computational domain is dynamically controlled ...

Darrell W. Pepper; Xiuling Wang

2009-03-01T23:59:59.000Z

175

Field emission electron source  

DOE Patents [OSTI]

A novel field emitter material, field emission electron source, and commercially feasible fabrication method is described. The inventive field emission electron source produces reliable electron currents of up to 400 mA/cm.sup.2 at 200 volts. The emitter is robust and the current it produces is not sensitive to variability of vacuum or the distance between the emitter tip and the cathode. The novel emitter has a sharp turn-on near 100 volts.

Zettl, Alexander Karlwalter (Kensington, CA); Cohen, Marvin Lou (Berkeley, CA)

2000-01-01T23:59:59.000Z

176

Hot Pot Field Observations  

SciTech Connect (OSTI)

Map of field observations including depressions, springs, evidence of former springs, travertine terraces and vegetation patterns. Map also contains interpretation of possible spring alignments.

Lane, Michael

2013-06-28T23:59:59.000Z

177

Hot Pot Field Observations  

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

Map of field observations including depressions, springs, evidence of former springs, travertine terraces and vegetation patterns. Map also contains interpretation of possible spring alignments.

Lane, Michael

178

Effects of dust size distribution on dust negative ion acoustic solitary waves in a magnetized dusty plasma  

SciTech Connect (OSTI)

Dust negative ion acoustic solitary waves in a magnetized multi-ion dusty plasma containing hot isothermal electron, ions (light positive ions and heavy negative ions) and extremely massive charge fluctuating dust grains are investigated by employing the reductive perturbation method. How the dust size distribution affect the height and the thickness of the nonlinear solitary wave are given. It is noted that the characteristic of the solitary waves are different with the different dust size distribution. The magnitude of the external magnetic field also affects the solitary wave form.

Ma, Yi-Rong; Qi, Xin; Sun, Jian-An; Duan, Wen-Shan [Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 (China)] [Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 (China); Yang, Lei [Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 (China) [Joint Laboratory of Atomic and Molecular Physics of NWNU and IMP CAS, Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China and College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070 (China); Department of Physics, Lanzhou University, Lanzhou 730000 (China)

2013-08-15T23:59:59.000Z

179

Size quantization in planar graphene-based heterostructures: Pseudospin splitting, interface states, and excitons  

SciTech Connect (OSTI)

A planar quantum-well device made of a gapless graphene nanoribbon with edges in contact with gapped graphene sheets is examined. The size-quantization spectrum of charge carriers in an asymmetric quantum well is shown to exhibit a pseudospin splitting. Interface states of a new type arise from the crossing of dispersion curves of gapless and gapped graphene materials. The exciton spectrum is calculated for a planar graphene quantum well. The effect of an external electric field on the exciton spectrum is analyzed.

Ratnikov, P. V., E-mail: ratnikov@lpi.ru; Silin, A. P. [Russian Academy of Sciences, Lebedev Physical Institute (Russian Federation)

2012-03-15T23:59:59.000Z

180

Design of Compound Solenoids to Produce Highly Homogeneous Magnetic Fields  

Science Journals Connector (OSTI)

......the size of the correcting coils. An elementary hill-climbing routine adjusts S to...which contains a magnetic field but no electric currents, V x H = 0, and a magnetic...to the length of wire used and to the resistance of that wire. Thus thefieldi/n,m......

S. T. LONEY

1966-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

Field of Expertise Biotechnology  

E-Print Network [OSTI]

Field of Expertise Human- & Biotechnology #12;Human- and biotechnology is one of the key possible by research in human- and biotechnology is not just restricted to medicine and pharmacy, but also laboratory to support introduction of medical products to the market. In the field of biotechnology, Graz

182

Diamond fiber field emitters  

DOE Patents [OSTI]

A field emission electron emitter comprising an electrode formed of at least one diamond, diamond-like carbon or glassy carbon composite fiber, said composite fiber having a non-diamond core and a diamond, diamond-like carbon or glassy carbon coating on said non-diamond core, and electronic devices employing such a field emission electron emitter.

Blanchet-Fincher, Graciela B. (Wilmington, DE); Coates, Don M. (Santa Fe, NM); Devlin, David J. (Los Alamos, NM); Eaton, David F. (Wilmington, DE); Silzars, Aris K. (Landenburg, PA); Valone, Steven M. (Santa Fe, NM)

1996-01-01T23:59:59.000Z

183

The effects of erodent particle size and composition on the erosion of chromium carbide based coatings  

SciTech Connect (OSTI)

A number of studies and field experience have demonstrated the efficacy of use of chromium carbide based coatings on steam turbine components to reduce the effects of solid particle erosion. To optimize the performance of these coatings, a cost effective laboratory test is needed to facilitate the choice of coating composition, morphology, and deposition method. A variety of test types and test parameters have been reported with varying relative rankings of the various coatings evaluated. A critical review of past work has been made, with new data added for clarification. The particle size of the erodent used as well as its composition has been shown to be of particular importance. A correlation between field experience and selected laboratory test parameters then facilitates the optimum choice of coatings.

Walsh, P.N.; Quets, J.M.; Tucker, R.C. Jr. [Praxair Surface Technologies, Inc., Indianapolis, IN (United States)

1994-12-31T23:59:59.000Z

184

Comparisons of pore size distribution: A case from the Western Australian gas shale formations  

Science Journals Connector (OSTI)

Abstract Pore structure of shale samples from Triassic Kockatea and Permian Carynginia formations in the Northern Perth Basin, Western Australia is characterized. Transport properties of a porous media are regulated by the topology and geometry of inter-connected pore spaces. Comparisons of three laboratory experiments are conducted on the same source of samples to assess such micro-, meso- and macro-porosity: Mercury Injection Capillary Pressure (MICP), low field Nuclear Magnetic Resonance (NMR) and nitrogen adsorption (N2). High resolution FIB/SEM image analysis is used to further support the experimental pore structure interpretations at sub-micron scale. A dominating pore throat radius is found to be around 6 nm within a mesopore range based on MICP, with a common porosity around 3%. This relatively fast experiment offers the advantage to be reliable on well chips or cuttings up the pore throat sizes >2 nm. However, nitrogen adsorption method is capable to record pore sizes below 2 nm through the determination of the total pore volume from the quantity of vapour adsorbed at relative pressure. But the macro-porosity and part of the meso-porosity is damaged or even destroyed during the sample preparation. BET specific surface area results usually show a narrow range of values from 5 to 10 m2/g. Inconsistency was found in the pore size classification between MICP and N2 measurements mostly due to their individual lower- and upper-end pore size resolution limits. The water filled pores disclosed from NMR T2 relaxation time were on average 30% larger than MICP tests. Evidence of artificial cracks generated from the water interactions with clays after re-saturation experiments could explain such porosity over-estimation. The computed pore body to pore throat ratio extracted from the Timur–Coates NMR model, calibrated against gas permeability experiments, revealed that such pore geometry directly control the permeability while the porosity and pore size distribution remain similar between different shale gas formations and/or within the same formation. The combination of pore size distribution obtained from MICP, N2 and NMR seems appropriate to fully cover the range of pore size from shale gas and overcome the individual method limits.

Adnan Al Hinai; Reza Rezaee; Lionel Esteban; Mehdi Labani

2014-01-01T23:59:59.000Z

185

Effect of size heterogeneity on community identification in complex networks  

SciTech Connect (OSTI)

Identifying community structure can be a potent tool in the analysis and understanding of the structure of complex networks. Up to now, methods for evaluating the performance of identification algorithms use ad-hoc networks with communities of equal size. We show that inhomogeneities in community sizes can and do affect the performance of algorithms considerably, and propose an alternative method which takes these factors into account. Furthermore, we propose a simple modification of the algorithm proposed by Newman for community detection (Phys. Rev. E 69 066133) which treats communities of different sizes on an equal footing, and show that it outperforms the original algorithm while retaining its speed.

Danon, L.; Diaz-Guilera, A.; Arenas, A.

2008-01-01T23:59:59.000Z

186

Effect of size heterogeneity on community identification in complex networks  

E-Print Network [OSTI]

Identifying community structure can be a potent tool in the analysis and understanding of the structure of complex networks. Up to now, methods for evaluating the performance of identification algorithms use ad-hoc networks with communities of equal size. We show that inhomogeneities in community sizes can and do affect the performance of algorithms considerably, and propose an alternative method which takes these factors into account. Furthermore, we propose a simple modification of the algorithm proposed by Newman for community detection (Phys. Rev. E {\\bf 69} 066133) which treats communities of different sizes on an equal footing, and show that it outperforms the original algorithm while retaining its speed.

Danon, L; Díaz-Guilera, A; Arenas, Alex; Danon, Leon; Diaz-Guilera, Albert

2006-01-01T23:59:59.000Z

187

Abandoned oil fields in Oklahoma  

SciTech Connect (OSTI)

Data are presented for approximately 165 abandoned oil fields in Oklahoma that have produced 10,000 or more barrels of oil prior to abandonment. The following information is provided for each field: county; DOE field code; field name; AAPG geologic province code; discovery date of field; year of last production, if known; discovery well operator; proven acreage; formation thickness; depth of field; gravity of oil production; calendar year; yearly field oil production; yearly field gas production; cumulative oil production; cumulative gas production; number abandoned fields in county; cumulative production of oil from fields; and cumulative production of gas from fields. (ATT)

Chism, J.

1983-08-01T23:59:59.000Z

188

Property:Incentive/EligSysSize | Open Energy Information  

Open Energy Info (EERE)

Property Property Edit with form History Facebook icon Twitter icon » Property:Incentive/EligSysSize Jump to: navigation, search Property Name Incentive/EligSysSize Property Type Text Description Eligible System Size. Pages using the property "Incentive/EligSysSize" Showing 25 pages using this property. (previous 25) (next 25) 3 30% Business Tax Credit for Solar (Vermont) + 150 kW A AEP (Central and SWEPCO) - Coolsaver A/C Tune Up (Texas) + AEP Texas residential and business customers with units up to 25 tons. AEP Ohio - Commercial Custom Project Rebate Program (Ohio) + Must have a minimum of 1 year simple payback or maximum of 7 years simple payback without the incentive AEP Ohio - Renewable Energy Credit (REC) Purchase Program (Ohio) + Must have a rated capacity of 100kW or less

189

A stochastic method for stand-alone photovoltaic system sizing  

SciTech Connect (OSTI)

Photovoltaic systems utilize solar energy to generate electrical energy to meet load demands. Optimal sizing of these systems includes the characterization of solar radiation. Solar radiation at the Earth's surface has random characteristics and has been the focus of various academic studies. The objective of this study was to stochastically analyze parameters involved in the sizing of photovoltaic generators and develop a methodology for sizing of stand-alone photovoltaic systems. Energy storage for isolated systems and solar radiation were analyzed stochastically due to their random behavior. For the development of the methodology proposed stochastic analysis were studied including the Markov chain and beta probability density function. The obtained results were compared with those for sizing of stand-alone using from the Sandia method (deterministic), in which the stochastic model presented more reliable values. Both models present advantages and disadvantages; however, the stochastic one is more complex and provides more reliable and realistic results. (author)

Cabral, Claudia Valeria Tavora; Filho, Delly Oliveira; Martins, Jose Helvecio; Toledo, Olga Moraes [Department of Agricultural Engineering, Federal University of Vicosa, Av. P. H. Rolfs, s/n. 36570-000 Vicosa, Minas Gerais (Brazil); Diniz, Antonia Sonia Alves C.; Machado Neto, Lauro de Vilhena B. [Group of Studies in Energy - GREEN Solar, Pontifical Catholic University of Minas Gerais - PUC Minas, Rua Dom Jose Gaspar no. 500, Predio 03, Sala 218 - Coracao Eucaristico 30535-610 Belo Horizonte - Minas Gerais (Brazil)

2010-09-15T23:59:59.000Z

190

Warming alters community size structure and ecosystem functioning  

Science Journals Connector (OSTI)

...37-49, 08003 Barcelona, Spain Global warming can affect all levels of biological...structure|ecosystem functioning|global warming|body mass|size spectrum...The ecological implications of global warming have been documented across many...

2012-01-01T23:59:59.000Z

191

Interactions of photosynthesis with genome size and function  

Science Journals Connector (OSTI)

...about half of the cell protein. There...involve oxidation of organic compounds. Here...is to decrease production of carbon dioxide from organic matter, while...larger minimum cell size, than organisms...photosynthesis (exposure to solar radiation) on...

2013-01-01T23:59:59.000Z

192

Optimal Urban Population Size: National vs Local Economic Efficiency  

E-Print Network [OSTI]

This paper explores whether the population size of the Seoul Metropolitan Area (SMA) in Korea is efficient in terms of the national economy. To undertake this analysis, a recursively dynamic interregional computable general ...

Nam, Kyung-min

193

Influence of boric acid additive size on green lubricant performance  

Science Journals Connector (OSTI)

...towards green manufacturing processes, there...boric acid powder additives with canola oil...change present manufacturing process lines...powder-based lubricant additives As conceptually...of boric acid additive size on green...towards green manufacturing processes, there...

2010-01-01T23:59:59.000Z

194

Nanoparticle sizing method based on fluorescence anisotropy analysis  

Science Journals Connector (OSTI)

Abstract Demand for applications of nanoparticles in electric architecture has been increasing. Nanoparticles provide new opportunities for improving circuit response. We discuss a novel method for evaluating nanoparticle sizes based on fluorescence anisotropy analysis. Particle size evaluation is possible through measurements of the rotational diffusion coefficient, which is sensitive to particle size. We develop a system for measuring rotational diffusion coefficients by using a fluorescent probe to label a particle. We report fundamental experiments that verify the feasibility of the proposed method. The rotational diffusion coefficients of gold nanoparticles with diameters ranging 6–20 nm were measured using the proposed method. The measured rotational diffusion coefficients decrease with increasing particle size. This finding indicates that nanoparticles smaller than 15 nm can be measured with fine resolution.

Terutake Hayashi; Yuki Ishizaki; Masaki Michihata; Yasuhiro Takaya; Shin-Ichi Tanaka

2015-01-01T23:59:59.000Z

195

The Measurement of Bubble-Size Distributions by Acoustical Backscatter  

Science Journals Connector (OSTI)

A multifrequency acoustical-backscatter technique is described for determining the size distribution of bubbles with radii between 8 and 130 µm. The method makes use of the resonance in the microbubbles and operates at six frequencies ranging ...

Svein Vagle; David M. Farmer

1992-10-01T23:59:59.000Z

196

Strangeness Enhancement and System Size in the Hadronic Gas Model  

E-Print Network [OSTI]

Strange particle enhancement in relativistic ion collisions is discussed with particular attention to the dependence on the size of the volume and/or the baryon number of the system.

Azwinndini Muronga; Jean Cleymans

1997-09-23T23:59:59.000Z

197

Sample size in factor analysis: The role of model error  

E-Print Network [OSTI]

This article examines effects of sample size and other design features on correspondence between factors obtained from analysis of sample data and those present in the population from which the samples were drawn. We extend ...

MacCallum, R. C.; Widaman, K. F.; Preacher, K. J.; Hong, Sehee

2001-01-01T23:59:59.000Z

198

THE GALACTIC MAGNETIC FIELD  

SciTech Connect (OSTI)

With this Letter, we complete our model of the Galactic magnetic field (GMF), by using the WMAP7 22 GHz total synchrotron intensity map and our earlier results to obtain a 13-parameter model of the Galactic random field, and to determine the strength of the striated random field. In combination with our 22-parameter description of the regular GMF, we obtain a very good fit to more than 40,000 extragalactic Faraday rotation measures and the WMAP7 22 GHz polarized and total intensity synchrotron emission maps. The data call for a striated component to the random field whose orientation is aligned with the regular field, having zero mean and rms strength Almost-Equal-To 20% larger than the regular field. A noteworthy feature of the new model is that the regular field has a significant out-of-plane component, which had not been considered earlier. The new GMF model gives a much better description of the totality of data than previous models in the literature.

Jansson, Ronnie; Farrar, Glennys R. [Center for Cosmology and Particle Physics, Department of Physics, New York University, New York, NY 10003 (United States)

2012-12-10T23:59:59.000Z

199

Determining size-specific emission factors for environmental tobacco smoke  

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

Determining size-specific emission factors for environmental tobacco smoke Determining size-specific emission factors for environmental tobacco smoke particles Title Determining size-specific emission factors for environmental tobacco smoke particles Publication Type Journal Article Year of Publication 2003 Authors Klepeis, Neil E., Michael G. Apte, Lara A. Gundel, Richard G. Sextro, and William W. Nazaroff Journal Aerosol Science & Technology Volume 37 Start Page Chapter Pagination 780-790 Date Published October 2003 Abstract Because size is a major controlling factor for indoor airborne particle behavior, human particle exposure assessments will benefit from improved knowledge of size-specific particle emissions. We report a method of inferring size-specific mass emission factors for indoor sources that makes use of an indoor aerosol dynamics model, measured particle concentration time series data, and an optimization routine. This approach provides -- in addition to estimates of the emissions size distribution and integrated emission factors -- estimates of deposition rate, an enhanced understanding of particle dynamics, and information about model performance. We applied the method to size-specific environmental tobacco smoke (ETS) particle concentrations measured every minute with an 8-channel optical particle counter (PMS-LASAIR; 0.1-2+ micrometer diameters) and every 10 or 30 min with a 34-channel differential mobility particle sizer (TSI-DMPS; 0.01-1+ micrometer diameters) after a single cigarette or cigar was machine-smoked inside a low air-exchange rate 20m^3 chamber. The aerosol dynamics model provided good fits to observed concentrations when using optimized values of mass emission rate and deposition rate for each particle size range as input. Small discrepancies observed in the first 1-2 hours after smoking are likely due to the effect of particle evaporation, a process neglected by the model. Size-specific ETS particle emission factors were fit with log-normal distributions, yielding an average mass median diameter of 0.2 micrometers and an average geometric standard deviation of 2.3 with no systematic differences between cigars and cigarettes. The equivalent total particle emission rate, obtained by integrating each size distribution, was 0.2-0.7 mg/min for cigars and 0.7-0.9 mg/min for cigarettes

200

Analysis Driven Field Testing  

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

ANALYSIS DRIVEN FIELD TESTING ANALYSIS DRIVEN FIELD TESTING Greg Barker, MEP Paul Norton, NERD C.E. Hancock, MEP Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 MODELING DRIVEN FIELD TESTING Greg Barker, MEP Paul Norton, NERD C.E. Hancock, MEP Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 MODELING DRIVEN MEASUREMENTS Greg Barker, MEP Paul Norton, NERD C.E. Hancock, MEP Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 Building America Residential Energy Efficiency Stakeholder Meeting Austin, TX March 2, 2012 "Modeling without measuring lacks credibility. Measuring without modeling lacks generality." Ed Hancock

Note: This page contains sample records for the topic "field size mmboe" 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

Magnetic Field Viewing Cards  

Science Journals Connector (OSTI)

For some years now laminated cards containing a green magnetically sensitive film have been available from science education suppliers. When held near a magnet these cards appear dark green in regions where the field is perpendicular to the card and light green where the field is parallel to the card. The cards can be used to explore the magnetic field near a variety of magnets as well as near wire loops. In this paper we describe how to make these cards and how we have used them in our physics classrooms and labs.

Stephen Kanim; John R. Thompson

2005-01-01T23:59:59.000Z

202

Methods to determine the size distribution of airborne rhinovirus  

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

Methods to determine the size distribution of airborne rhinovirus Methods to determine the size distribution of airborne rhinovirus Title Methods to determine the size distribution of airborne rhinovirus Publication Type Report Year of Publication 2004 Authors Russell, Marion L., Regine Goth-Goldstein, Michael G. Apte, and William J. Fisk Publisher Lawrence Berkeley National Laboratory Abstract About 50% of viral-induced respiratory illnesses are caused by the human rhinovirus (HRV). Prior research has demonstrated that rhinovirus infections can be transmitted via person-to-person contact and via inhalation of infectious aerosols. Measurements of the concentrations and sizes of bioaerosols are critical for research on building characteristics, aerosol transport, and mitigation measures. To detect airborne HRV, we developed a quantitative reverse transcription-coupled polymerase chain reaction (RT-PCR) assay and verified that this assay detects HRV in nasal lavage samples. A quantitation standard was used to determine the assay detection limit of 5 fg of HRV RNA with a linear range over 10,000-fold. This assay was used to quantify the size distribution of an artificially-produced HRV aerosol captured with an Andersen six-stage cascade impactor. In future studies, we hope to use the methods developed here to characterize the size distribution of naturally occurring viral-aerosols

203

Process system and method for fabricating submicron field emission cathodes  

DOE Patents [OSTI]

A process method and system for making field emission cathodes exists. The deposition source divergence is controlled to produce field emission cathodes with height-to-base aspect ratios that are uniform over large substrate surface areas while using very short source-to-substrate distances. The rate of hole closure is controlled from the cone source. The substrate surface is coated in well defined increments. The deposition source is apertured to coat pixel areas on the substrate. The entire substrate is coated using a manipulator to incrementally move the whole substrate surface past the deposition source. Either collimated sputtering or evaporative deposition sources can be used. The position of the aperture and its size and shape are used to control the field emission cathode size and shape.

Jankowski, Alan F. (Livermore, CA); Hayes, Jeffrey P. (Ripon, CA)

1998-01-01T23:59:59.000Z

204

Development of a mid-sized Schwarzschild-Couder Telescope for the Cherenkov Telescope Array  

SciTech Connect (OSTI)

The Cherenkov Telescope Array (CTA) is a ground-based observatory for very high-energy (10 GeV to 100 TeV) gamma rays, planned for operation starting in 2018. It will be an array of dozens of optical telescopes, known as Atmospheric Cherenkov Telescopes (ACTs), of 8 m to 24 m diameter, deployed over an area of more than 1 square km, to detect flashes of Cherenkov light from showers initiated in the Earth's atmosphere by gamma rays. CTA will have improved angular resolution, a wider energy range, larger fields of view and an order of magnitude improvement in sensitivity over current ACT arrays such as H.E.S.S., MAGIC and VERITAS. Several institutions have proposed a research and development program to eventually contribute 36 medium-sized telescopes (9 m to 12 m diameter) to CTA to enhance and optimize its science performance. The program aims to construct a prototype of an innovative, Schwarzschild-Couder telescope (SCT) design that will allow much smaller and less expensive cameras and much larger fields of view than conventional Davies-Cotton designs, and will also include design and testing of camera electronics for the necessary advances in performance, reliability and cost. We report on the progress of the mid-sized SCT development program.

Cameron, Robert A.

2012-06-28T23:59:59.000Z

205

Carlsbad Field Office  

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

of the ORNLCCP Dear Mr. Kieling: This letter transmits the Final Audit Report for Carlsbad Field Office (CBFO) Audit A-14-03 of the Oak Ridge National Laboratory (ORNL) Central...

206

Temporary Hourly Archaeological Field  

E-Print Network [OSTI]

, conduct applied research, and offer career development and learning opportunities to support resource carpooled. RESPONSIBILITIES Under the general direction of the CEMML archaeological Crew Chief, conduct archaeological field work involving archaeological inventory survey operations on various tracts of military

207

Intelligent field emission arrays  

E-Print Network [OSTI]

Field emission arrays (FEAs) have been studied extensively as potential electron sources for a number of vacuum microelectronic device applications. For most applications, temporal current stability and spatial current ...

Hong, Ching-yin, 1973-

2003-01-01T23:59:59.000Z

208

subsurface geological field | EMSL  

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

transport of U(VI) at the field-scale. The results indicate that multi-rate U(VI) sorptiondesorption, U(VI) surface complexation reactions, and initial U(VI) concentrations...

209

EMSL - subsurface geological field  

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

transport of U(VI) at the field-scale. The results indicate that multi-rate U(VI) sorptiondesorption, U(VI) surface complexation reactions, and initial U(VI) concentrations...

210

Field Theory of Matter  

Science Journals Connector (OSTI)

A speculative field theory of matter is developed. Simple computational methods are used in a preliminary survey of its consequences. The theory exploits the known properties of leptons by means of a principle of symmetry between electrical and nucleonic charge. There are fundamental fields with spins 0, ½, 1. The spinless field is neutral. Spin ½ and 1 fields can carry both electrical and nucleonic charge. The multiplicity of any nonzero charge is 3. Explicit dynamical mechanisms for the breakdown of unitary symmetry and for the muon-electron mass difference are given. A more general view of lepton properties is proposed. Mass relations for baryon and meson multiplets are derived, together with approximate couplings among the multiplets. The weakness of ? production in ?-N collisions and the suppression of the ???+? decay is explained.

Julian Schwinger

1964-08-10T23:59:59.000Z

211

The recoil correction to the proton-finite-size contribution to the Lamb shift in muonic hydrogen  

E-Print Network [OSTI]

The Lamb shift in muonic hydrogen was measured some time ago to a high accuracy. The theoretical prediction of this value is very sensitive to the proton-finite-size effects. The proton radius extracted from muonic hydrogen is in contradiction with the results extracted from elastic electron-proton scattering. That creates a certain problem for the interpretation of the results from the muonic hydrogen Lamb shift. For the latter we need also to take into account the two-photon-exchange contribution with the proton finite size involved. The only way to describe it relies on the data from the scattering, which may produce an internal inconsistency of theory. Recently the leading proton-finite-size contribution to the two-photon exchange was found within the external field approximation. The recoil part of the two-photon-exchange has not been considered. Here we revisit calculation of the external-field part and take the recoil correction to the finite-size effects into account.

Karshenboim, Savely G; Ivanov, Vladimir G; Shelyuto, Valery A

2015-01-01T23:59:59.000Z

212

Dangerous electromagnetic fields?  

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

Dangerous electromagnetic fields? Dangerous electromagnetic fields? Name: Tommy T Joseph Location: N/A Country: N/A Date: N/A Question: Why are electromagnetic fields supposedly dangerous? Replies: I assume you are asking about power line frequency (60 Hz) fields, since they have been in the news lately. No one knows for sure that they are dangerous. There have been a few studies which seem to show an association between how close homes are to power lines, and the incidence of childhood cancer (mostly leukemia) in children living (or who have lived) in those homes. Other similar studies have not found such an association. In all the studies which have found an association, none has actually measured the fields. Studies which actually have measured the fields find no association. There is no known mechanism for 60 Hz fields to cause cancer. Furthermore, the classic "dose-response relationship," that is, the greater the dose, the greater the response, does not seem to work here. Many laboratory studies have found that 60 Hz fields have an effect on organisms under certain conditions, but none of the observed effects can be convincingly related to a hazard. The bottom line is, no one knows for sure. It is important to realize that it is impossible to prove that anything is completely safe. My personal opinion is that, if there is a risk, it must be very small, or it wouldn't be so hard to prove. I can supply some good unbiased references if you are interested.

213

Magnetic Fields Analogous to electric field, a magnet  

E-Print Network [OSTI]

characteristic of elementary particles such as an electron #12;Magnetic Fields Magnetic field lines Direction;Magnetic Fields Magnetic field lines enter one end (south) of magnet and exit the other end (north) Opposite magnetic poles attract like magnetic poles repel #12;Like the electric field lines

Bertulani, Carlos A. - Department of Physics and Astronomy, Texas A&M University

214

Digital Geologic Field Mapping Using Arcpad, In: Digital Mapping Techniques  

Open Energy Info (EERE)

Digital Geologic Field Mapping Using Arcpad, In: Digital Mapping Techniques Digital Geologic Field Mapping Using Arcpad, In: Digital Mapping Techniques '02- Workshop Proceedings Jump to: navigation, search OpenEI Reference LibraryAdd to library Report: Digital Geologic Field Mapping Using Arcpad, In: Digital Mapping Techniques '02- Workshop Proceedings Abstract Research into the practicality of digital mapping by Placer Dome Exploration identified hardware and software solutions to enhance the efficiency and accuracy of field work. The goal of the research was to find a lightweight hardware-software system that allows the user to build a digital map from field observations in much the same way as pen and paper methods. The focus of the research was to minimize the size and weight of computer systems. Systems identified consist of a wearable PC or handheld

215

AN EXTENDED FIELD OF CRATER STRUCTURES IN EGYPT: OBSERVATIONS AND HYPOTHESES. Ph. Pail-, B. Reynard2  

E-Print Network [OSTI]

AN EXTENDED FIELD OF CRATER STRUCTURES IN EGYPT: OBSERVATIONS AND HYPOTHESES. Ph. Pail- lou1 , B Analysis: Having initially located a possible crater field in southwestern Egypt using JERS- 1 radar images, 225 Ã? 215 km in size, is located in Southwest Egypt, in the vicinity of the Gilf Kebir plateau (Figure

Paris-Sud XI, Université de

216

OIKOS 101: 499504, 2003 Do seedlings in gaps interact? A field test of assumptions in ESS  

E-Print Network [OSTI]

OIKOS 101: 499­504, 2003 Do seedlings in gaps interact? A field test of assumptions in ESS seed seedlings in gaps interact? A field test of assumptions in ESS seed size models. ­ Oikos 101: 499­504. ESS for the occupancy of `safe sites' or vegetation gaps. If mortality rates are high and/or frequency-independent, ESS

Silvertown, Jonathan

217

WHAT DETERMINES THE SIZES OF RED EARLY-TYPE GALAXIES?  

SciTech Connect (OSTI)

The sizes of galaxies are known to be closely related with their masses, luminosities, redshifts, and morphologies. However, when we fix these quantities and morphology, we still find large dispersions in the galaxy size distribution. We investigate the origin of these dispersions for red early-type galaxies using two SDSS-based catalogs. We find that the sizes of faint galaxies (log (M{sub dyn}/M{sub Sun }) {approx}< 10.3 or {sup 0.1} M{sub r} {approx}> -19.5, where {sup 0.1} M{sub r} is the r-band absolute magnitude, k-corrected to z = 0.1) are affected more significantly by luminosity, while the sizes of bright galaxies (log (M{sub dyn}/M{sub Sun }) {approx}> 11.4 or {sup 0.1} M{sub r} {approx}< -21.4) are by dynamical mass. At fixed mass and luminosity, the sizes of low-mass galaxies (log (M{sub dyn}/M{sub Sun }) {approx} 10.45 and {sup 0.1} M{sub r} {approx} -19.8) are relatively less sensitive to their colors, color gradients, and axis ratios. On the other hand, the sizes of intermediate-mass (log (M{sub dyn}/M{sub Sun }) {approx} 10.85 and {sup 0.1} M{sub r} {approx} -20.4) and high-mass (log (M{sub dyn}/M{sub Sun }) {approx} 11.25 and {sup 0.1} M{sub r} {approx} -21.0) galaxies significantly depend on those parameters, in the sense that larger red early-type galaxies have bluer colors, more negative color gradients (bluer outskirts), and smaller axis ratios. These results indicate that the sizes of intermediate- and high-mass red early-type galaxies are significantly affected by their recent minor mergers or rotations, whereas the sizes of low-mass red early-type galaxies are affected by some other mechanisms. Major dry mergers also seem to have influenced on the size growth of high-mass red early-type galaxies.

Lee, Joon Hyeop; Kim, Minjin; Ree, Chang Hee; Kim, Sang Chul; Lee, Jong Chul; Lee, Hye-Ran; Jeong, Hyunjin; Seon, Kwang-Il; Kyeong, Jaemann [Korea Astronomy and Space Science Institute, Daejeon 305-348 (Korea, Republic of); Oh, Kyuseok, E-mail: jhl@kasi.re.kr [Department of Astronomy, Yonsei University, Seoul 120-749 (Korea, Republic of)

2013-01-01T23:59:59.000Z

218

Method for measuring the size distribution of airborne rhinovirus  

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

Method for measuring the size distribution of airborne rhinovirus Method for measuring the size distribution of airborne rhinovirus Title Method for measuring the size distribution of airborne rhinovirus Publication Type Conference Proceedings Year of Publication 2002 Authors Russell, Marion L., Regine Goth-Goldstein, Michael G. Apte, and William J. Fisk Conference Name Proceedings of the Indoor Air 2002 Conference, Monterey, CA Volume 1 Pagination 40-45 Publisher Indoor Air 2002, Santa Cruz, CA Abstract About 50% of viral-induced respiratory illnesses are caused by the human rhinovirus (HRV). Measurements of the concentrations and sizes of bioaerosols are critical for research on building characteristics, aerosol transport, and mitigation measures. We developed a quantitative reverse transcription-coupled polymerase chain reaction (RT-PCR) assay for HRV and verified that this assay detects HRV in nasal lavage samples. A quantitation standard was used to determine a detection limit of 5 fg of HRV RNA with a linear range over 1000-fold. To measure the size distribution of HRV aerosols, volunteers with a head cold spent two hours in a ventilated research chamber. Airborne particles from the chamber were collected using an Andersen Six-Stage Cascade Impactor. Each stage of the impactor was analyzed by quantitative RT-PCR for HRV. For the first two volunteers with confirmed HRV infection, but with mild symptoms, we were unable to detect HRV on any stage of the impactor

219

VERTICAL BEAM SIZE CONTROL IN TLS AND TPS.  

SciTech Connect (OSTI)

Vertical beam size control is an important issue in the light source operations. The horizontal-vertical betatron coupling and vertical dispersion were measured and corrected to small values in the TLS 1.5 GeV storage ring. Estimated beam sizes are compared with the measured values. By employing an effective transverse damping system, the vertical beam blow-up due to transverse coherent instabilities, such as the fast-ion beam instability, was suppressed. As a result, the light source is very stable. In NSRRC we are designing an ultra low emittance 3-GeV storage ring and its designed vertical beam size could be as small as a few microns. The ground and mechanic vibration effects, and coherent instabilities could spoil the expected photon brightness due to blow-up of the vertical beam size if not well taken care of. The contributions of these effects to vertical beam size increase will be evaluated and the counter measures to minimize them will be proposed and reported in this paper.

KUO, C.C.; CHEN, J.R.; CHOU, P.J.; CHANG, H.P.; HSU, K.T.; LUO, G.H.; TSAI, H.J.; WANG, D.J.; WANG, M.H.

2006-06-26T23:59:59.000Z

220

Determination of heliostat and concentrator size for solar furnace facilities  

SciTech Connect (OSTI)

There are basically two types of solar furnaces -- a vertical-beam or a horizontal-beam facility. A vertical-beam facility uses movable heliostats to redirect the incoming solar energy vertically upward to a stationary parabolid. A horizontal-beam furnace uses the heliostat to redirect the incoming energy horizontally to the paraboloid. This paper presents a method to determine the optimum size of the heliostat and/or concentrator to meet predetermined design criteria. Usually the concentrator size is fixed by the temperature and flux-density required at the test plane and the problem is to size the heliostat so the facility can be used for a certain length of time each day during the entire year. However, the method can also be used when the heliostat size is fixed and the concentrator size must be determined. The analysis considers energy incident from the sun being reflected from a flat spectral surface (heliostat) onto a concentrating surface (concentrator), which then redirects the energy to a focal spot that can then be used as a high temperature, high-flux density source. The analysis uses the basic relations of geometric optics and considers only the central ray of the incoming cone of energy from the sun. Errors involved with this assumption will be minimal for most cases, but if deemed necessary, the reflected cone can be accounted for in the reflected ray from the heliostat.

Mulholland, G.P.

1983-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

Table B6. Building Size, Number of Buildings, 1999  

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

B6. Building Size, Number of Buildings, 1999" B6. Building Size, Number of Buildings, 1999" ,"Number of Buildings (thousand)" ,"All Buildings ","Building Size" ,,"1,001 to 5,000 Square Feet","5,001 to 10,000 Square Feet","10,001 to 25,000 Square Feet","25,001 to 50,000 Square Feet","50,001 to 100,000 Square Feet","100,001 to 200,000 Square Feet","200,001 to 500,000 Square Feet","Over 500,000 Square Feet" "All Buildings ................",4657,2348,1110,708,257,145,59,23,7 "Principal Building Activity" "Education ....................",327,119,61,52,49,30,10,5,"Q" "Food Sales ...................",174,138,"Q","Q","Q","Q","Q","N","N"

222

Buildings","Building Size"  

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

B7. Building Size, Floorspace, 1999" B7. Building Size, Floorspace, 1999" ,"Total Floorspace (million square feet)" ,"All Buildings","Building Size" ,,"1,001 to 5,000 Square Feet","5,001 to 10,000 Square Feet","10,001 to 25,000 Square Feet","25,001 to 50,000 Square Feet","50,001 to 100,000 Square Feet","100,001 to 200,000 Square Feet","200,001 to 500,000 Square Feet","Over 500,000 Square Feet" "All Buildings ................",67338,6774,8238,11153,9311,10112,8271,6851,6628 "Principal Building Activity" "Education ....................",8651,338,444,883,1803,2144,1484,1311,"Q" "Food Sales ...................",994,302,"Q","Q","Q","Q","Q","N","N"

223

Buildings*","Building Size"  

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

B6. Building Size, Number of Buildings for Non-Mall Buildings, 2003" B6. Building Size, Number of Buildings for Non-Mall Buildings, 2003" ,"Number of Buildings (thousand)" ,"All Buildings*","Building Size" ,,"1,001 to 5,000 Square Feet","5,001 to 10,000 Square Feet","10,000 to 25,000 Square Feet","25,001 to 50,000 Square Feet","50,001 to 100,000 Square Feet","100,001 to 200,000 Square Feet","200,001 to 500,000 Square Feet","Over 500,000 Square Feet" "All Buildings* ...............",4645,2552,889,738,241,129,65,25,7 "Principal Building Activity" "Education ....................",386,162,56,60,48,39,16,5,"Q" "Food Sales ...................",226,164,44,"Q","Q","Q","Q","N","N"

224

Buildings","Building Size"  

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

A5. Building Size, Number of Buildings for All Buildings (Including Malls), 2003" A5. Building Size, Number of Buildings for All Buildings (Including Malls), 2003" ,"Number of Buildings (thousand)" ,"All Buildings","Building Size" ,,"1,001 to 5,000 Square Feet","5,001 to 10,000 Square Feet","10,000 to 25,000 Square Feet","25,001 to 50,000 Square Feet","50,001 to 100,000 Square Feet","100,001 to 200,000 Square Feet","200,001 to 500,000 Square Feet","Over 500,000 Square Feet" "All Buildings ................",4859,2586,948,810,261,147,74,26,8 "Principal Building Activity" "Education ....................",386,162,56,60,48,39,16,5,"Q" "Food Sales ...................",226,164,44,"Q","Q","Q","Q","N","N"

225

Assess Potential Agency Size Changes that Impact Greenhouse Gases from  

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

Vehicles and Mobile Equipment Vehicles and Mobile Equipment Assess Potential Agency Size Changes that Impact Greenhouse Gases from Vehicles and Mobile Equipment October 7, 2013 - 11:31am Addthis YOU ARE HERE Step 1 Planned changes in a Federal agency's size, missions, transportation needs, and vehicle inventory all impact the strategic portfolio planning efforts that target greenhouse gas (GHG) emissions mitigation for vehicles and mobile equipment. Under Section 142 of the Energy Independence and Security Act (EISA) and Section 8 of Executive Order (E.O.) 13514, agencies are required to develop a plan that will reduce fleet GHG emissions to meet Federally mandated petroleum reduction and alternative fuel increase targets. Agencies can use these plans as a basis for determining potential changes in fleet size and

226

Guidelines and Toolkits for Urban Transport Development in Medium Sized  

Open Energy Info (EERE)

Guidelines and Toolkits for Urban Transport Development in Medium Sized Guidelines and Toolkits for Urban Transport Development in Medium Sized Cities in India Jump to: navigation, search Tool Summary Name: Guidelines and Toolkits for Urban Transport Development in Medium Sized Cities in India Agency/Company /Organization: Asian Development Bank Focus Area: Governance - Planning - Decision-Making Structure Topics: Best Practices Complexity/Ease of Use: Not Available Website: sti-india-uttoolkit.adb.org/ Transport Toolkit Region(s): Asia Related Tools Promoting Clean Cars: Case Study of Stockholm and Sweden MOtor Vehicle Emission Simulator (MOVES) The World Bank - Transport ... further results Find Another Tool FIND TRANSPORTATION TOOLS This resource is designed to help decision makers and practitioners in states and municipal governments who are concerned with urban transport

227

Optimal Siting and Sizing of Distributed Energy Resources  

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

Optimal Siting and Sizing of Distributed Energy Resources Optimal Siting and Sizing of Distributed Energy Resources Speaker(s): Johan Driesen Date: February 15, 2007 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Chris Marnay Ongoing changes in the operation of distribution grids call for a new way to plan grid modifications. This presentation gives an overview of possible methods of long-term planning for the deployment of Distributed Energy Resources (distributed generation, storage and controllable loads) in a given grid. The placement and sizing of the units have to be considered, making this a complex optimization problem with discrete and continuous variables. In the optimization problem, multiple objectives are often conflicting, e.g. minimal grid losses, maximal use of the resources and voltage stability. An evolutionary algorithm (genetic algorithms) is used

228

Buildings","Building Size"  

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

A6. Building Size, Floorspace for All Buildings (Including Malls), 2003" A6. Building Size, Floorspace for All Buildings (Including Malls), 2003" ,"Total Floorspace (million square feet)" ,"All Buildings","Building Size" ,,"1,001 to 5,000 Square Feet","5,001 to 10,000 Square Feet","10,000 to 25,000 Square Feet","25,001 to 50,000 Square Feet","50,001 to 100,000 Square Feet","100,001 to 200,000 Square Feet","200,001 to 500,000 Square Feet","Over 500,000 Square Feet" "All Buildings ................",71658,6922,7033,12659,9382,10291,10217,7494,7660 "Principal Building Activity" "Education ....................",9874,409,399,931,1756,2690,2167,1420,"Q" "Food Sales ...................",1255,409,356,"Q","Q","Q","Q","N","N"

229

Buildings*","Building Size"  

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

B7. Building Size, Floorspace for Non-Mall Buildings, 2003" B7. Building Size, Floorspace for Non-Mall Buildings, 2003" ,"Total Floorspace (million square feet)" ,"All Buildings*","Building Size" ,,"1,001 to 5,000 Square Feet","5,001 to 10,000 Square Feet","10,000 to 25,000 Square Feet","25,001 to 50,000 Square Feet","50,001 to 100,000 Square Feet","100,001 to 200,000 Square Feet","200,001 to 500,000 Square Feet","Over 500,000 Square Feet" "All Buildings* ...............",64783,6789,6585,11535,8668,9057,9064,7176,5908 "Principal Building Activity" "Education ....................",9874,409,399,931,1756,2690,2167,1420,"Q" "Food Sales ...................",1255,409,356,"Q","Q","Q","Q","N","N"

230

ARM - Publications: Science Team Meeting Documents: Effects of Aerosol Size  

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

Effects of Aerosol Size Distribution and Vertical Profile on the Effects of Aerosol Size Distribution and Vertical Profile on the Polarization in the Oxygen A-Band Duan, Minzheng State University of New York at Albany Min, Qilong State University of New York at Albany A vector radiative transfer code with successive order of scattering method was used to simulate the high-resolution polarization spectra in the oxygen A-band. The effects of aerosol size distribution and vertical profile on the radiance and polarization at the top and bottom of the atmosphere were analyzed. The impacts of instrument specification on information content are also analyzed. Polarized radiances were dominated (>95%) by the first and second orders of scattering. The contributions of scattering from different levels to the TOA and surface observation are analyzed. The

231

Mid-Size Wind Turbines | Open Energy Information  

Open Energy Info (EERE)

Page Page Edit History Facebook icon Twitter icon » Mid-Size Wind Turbines Jump to: navigation, search A Vergnet GEV MP C 275-kW turbine at the Sandywoods Community, Rhode island. Photo from Stefan Dominioni/Vergnet S.A., NREL 26490. The U.S. Department of Energy defines mid-size wind turbines as 101 kilowatts to 1 megawatt.[1] Resources Kwartin, R.; Wolfrum, A.; Granfield, K.; Kagel, A.; Appleton, A. (2008). An Analysis of the Technical and Economic Potential for Mid-Scale Distributed Wind. National Renewable Energy Laboratory. Accessed September 27, 2013. National Renewable Energy Laboratory. Midsize Wind Turbine Research. Accessed September 27, 2013. This webpage discusses efforts to develop and commercialize mid-size wind turbines in the United States. References

232

Global Nuclear Energy Partnership Triples in Size to 16 Members |  

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

Nuclear Energy Partnership Triples in Size to 16 Members Nuclear Energy Partnership Triples in Size to 16 Members Global Nuclear Energy Partnership Triples in Size to 16 Members September 16, 2007 - 2:33pm Addthis Nations Sign On to International Cooperation for Safe Expansion of Nuclear Energy Worldwide VIENNA, AUSTRIA - U.S. Secretary of Energy Samuel W. Bodman and senior international officials from 16 nations today agreed to increase international nuclear energy cooperation through the Global Nuclear Energy Partnership (GNEP). China, France, Japan, Russia and the United States, who are original GNEP partners, as well as Australia, Bulgaria, Ghana, Hungary, Jordan, Kazakhstan, Lithuania, Poland, Romania, Slovenia, and Ukraine signed a "Statement of Principles", which addresses the prospects of expanding the peaceful uses of nuclear energy, including enhanced

233

Excitons and Excess Electrons in Nanometer Size Molecular Polyoxotitanate  

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

Excitons and Excess Electrons in Nanometer Size Molecular Polyoxotitanate Excitons and Excess Electrons in Nanometer Size Molecular Polyoxotitanate Clusters: Electronic Spectra, Exciton Dynamics, and Surface States Jianhua Bao, Zhihao Yu, Lars Gundlach, Jason B. Benedict, Philip Coppens, Hung Cheng Chen, John R. Miller and Piotr Piotrowiak J. Phys. Chem. B 117, 4422-4430 (2013). [Find paper at ACS Publications] Abstract: The behavior of excitons and excess electrons in the confined space of a molecular polyoxotitanate cluster Ti17(mu4-O)4(mu3-O)16(mu2-O)4(OPri)20 (in short Ti17) was studied using femtosecond pump-probe transient absorption, pulse radiolysis, and fluorescence spectroscopy. Due to pronounced quantum size effects, the electronic spectra of the exciton, Ti17*, and the excess electron carrying radical anion, Ti17(center dot-), are blue-shifted in

234

Microsoft Word - Nano-sized Ion Exchange Particles.docx  

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

Reducing Ion Exchange Particles to Nano-Size Shows Big Potential Reducing Ion Exchange Particles to Nano-Size Shows Big Potential AIKEN, S.C. (January 30, 2012) - Sometimes bigger isn't better. Researchers at the U.S. Department of Energy's Savannah River National Laboratory have successfully shown that they can replace useful little particles of monosodium titanate (MST) with even tinier nano-sized particles, making them even more useful for a variety of applications. MST is an ion exchange material used to decontaminate radioactive and industrial wastewater solutions, and has been shown to be an effective way to deliver metals into living cells for some types of medical treatment. Typically, MST, and a modified form known as mMST developed by SRNL and Sandia National Laboratories, are in the form of fine powders, spherically-shaped particles about 1 to 10 microns in diameter

235

Diffusion maximum as a function of size in dense liquids  

Science Journals Connector (OSTI)

We study the diffusion of small guest particles of different sizes in a host fluid at liquid densities using molecular dynamics simulations. We observe an enhancement of the diffusivity of guest particles for a size related to the structure of the void space of the host fluid, analogous to the “levitation effect” observed for guest diffusion in porous solids. Friction and activation energy are found to be minimum for the guest size with maximum self-diffusivity. Wavelength dependent self-diffusivity indicates a monotonic and oscillatory dependence on wave number k for anomalous and linear regimes, respectively. These are associated with single and bi-exponential decay of the incoherent intermediate scattering function.

Pradip Kr. Ghorai; A. V. Anil Kumar; Srikanth Sastry; S. Yashonath

2005-09-16T23:59:59.000Z

236

Improved sample size determination for attributes and variables sampling  

SciTech Connect (OSTI)

Earlier INMM papers have addressed the attributes/variables problem and, under conservative/limiting approximations, have reported analytical solutions for the attributes and variables sample sizes. Through computer simulation of this problem, we have calculated attributes and variables sample sizes as a function of falsification, measurement uncertainties, and required detection probability without using approximations. Using realistic assumptions for uncertainty parameters of measurement, the simulation results support the conclusions: (1) previously used conservative approximations can be expensive because they lead to larger sample sizes than needed; and (2) the optimal verification strategy, as well as the falsification strategy, are highly dependent on the underlying uncertainty parameters of the measurement instruments. 1 ref., 3 figs.

Stirpe, D.; Picard, R.R.

1985-01-01T23:59:59.000Z

237

Quantitative grain size evaluation using ultrasonic backscattered echoes  

Science Journals Connector (OSTI)

Grain size characterization using ultrasonicbackscattered signals is an important problem in nondestructive testing of materials. In this paper a heuristic model which relates the statistical characteristics of the measured signal to the mean ultrasonicwavelet and attenuation coefficient in different regions of the sample is investigated. The losses in the backscattered signal are examined using temporal averaging correlation and probability distribution functions of the segmented data. Furthermore homomorphic processing is used in a novel application to estimate the mean ultrasonicwavelet (as it propagates through the sample) and the frequency?dependent attenuation. In the work presented heat?treated stainless steel samples with various grain sizes are examined. The processed experimental results support the feasibility of the grain size evaluation techniques presented here using the backscattered grain signal.

Jafar Saniie; Nihat M. Bilgutay

1986-01-01T23:59:59.000Z

238

Lognormal Size Distribution Theory for Deposition of Polydisperse Aerosol Particles  

SciTech Connect (OSTI)

The moments method of the lognormal size distribution theory was applied to the deposition equation of a radioactive aerosol within a liquid-metal fast breeder reactor for analysis of postulated accidents. The deposition coefficient of Crump and Seinfeld was utilized to represent the Brownian and turbulent diffusions and the gravitational sedimentation. The deposition equation was converted into a set of three ordinary differential equations. This approach takes the view point that the size distribution of an aerosol is represented by a time-dependent lognormal size distribution function during the deposition process. Numerical calculations have been performed, and the results were found to be in good agreement with the exact solution. The derived model for aerosol deposition is convenient to use in a numerical general dynamic equation solution routine based on the moments method, where nucleation, condensation, coagulation, and deposition need to be solved simultaneously.

Park, S.H.; Lee, K.W. [Kwangju Institute of Science and Technology (Korea, Republic of)

2000-07-15T23:59:59.000Z

239

Finite-Size Effects on the Structure of Grain Boundaries  

Science Journals Connector (OSTI)

We present a combined experimental and theoretical analysis of the structure of finite-sized ?3 {112} grain boundaries in Au. High-resolution electron microscopy shows lattice translations at the grain boundary, with the magnitude of the translation varying along the finite-sized grain boundaries. The presence of this structural profile is explained using continuum elasticity theory and first-principles calculations as originating from a competition between elastic energy and the energy cost of forming continuous {111} planes across the boundary. This competition leads to a structural transition between offset-free and nontrivial grain boundary structures at a critical grain boundary size, in agreement with the experiments. We also provide a method to estimate the energy barrier of the ? surface.

E. A. Marquis; J. C. Hamilton; D. L. Medlin; F. Léonard

2004-10-04T23:59:59.000Z

240

Finite-size energy of non-interacting Fermi gases  

E-Print Network [OSTI]

We prove the asymptotics of the difference of the ground-state energies of two non-interacting $N$-particle Fermi gases on the half line of length $L$ in the thermodynamic limit up to order $1/L$. We are particularly interested in subdominant terms proportional to $1/L$, called finite-size energy. In the nineties Affleck and co-authors [Aff97, ZA97, AL94] claimed that the finite-size energy equals the decay exponent occuring in Anderson's orthogonality catastrophe. It turns out that the finite-size energy depends on the details of the thermodynamic limit and typically also includes a linear term in the scattering phase shift.

Martin Gebert

2014-06-14T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

Demand response medium sized industry consumers (Smart Grid Project) | Open  

Open Energy Info (EERE)

response medium sized industry consumers (Smart Grid Project) response medium sized industry consumers (Smart Grid Project) Jump to: navigation, search Project Name Demand response medium sized industry consumers Country Denmark Headquarters Location Aarhus, Denmark Coordinates 56.162937°, 10.203921° 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":56.162937,"lon":10.203921,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

242

Assess Potential Agency Size Changes to Reduce Greenhouse Gases Using  

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

Assess Potential Agency Size Changes to Reduce Greenhouse Gases Assess Potential Agency Size Changes to Reduce Greenhouse Gases Using Renewable Energy in Buildings Assess Potential Agency Size Changes to Reduce Greenhouse Gases Using Renewable Energy in Buildings October 7, 2013 - 11:15am Addthis To support planning for using renewable energy to reduce greenhouse gas (GHG) emissions at the Federal agency or program-level, it is important to consider what changes to the agencies building or land-holding portfolio may have on opportunities for renewable energy. Changes to consider include: Addition of new buildings or sites to the agencies portfolio Major renovations to existing buildings Office moves into or out of agency-owned or leased space. As is the case with planning energy efficiency measures, planning for renewable energy in new construction can be more cost-effective than

243

Types of Lighting in Commercial Buildings - Building Size and Year  

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

Lighting and Building Size and Year Constructed Lighting and Building Size and Year Constructed Building Size Smaller commercial buildings are much more numerous than larger commercial buildings, but comprise less total floorspace-the 1,001 to 5,000 square feet category includes more than half of total buildings, but just 11 percent of total floorspace. In contrast, just 5 percent of buildings are larger than 50,000 square feet, but they account for half of total floorspace. Lighting consumes 38 percent of total site electricity. Larger buildings consume relatively more electricity for lighting than smaller buildings. Nearly half (47%) of electricity is consumed by lighting in the largest buildings (larger than 500,000 square feet). In the smallest buildings (1,001 to 5,000 square feet), one-fourth of electricity goes to lighting

244

Field Operations Program  

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

688 688 May 1999 Field Operations Program Activities Status Report Fiscal Years 1997 through mid-1999 J. E. Francfort D. V. O'Hara L. A. Slezak DOE/ID-10688 Field Operations Program Activities Status Report Fiscal Years 1997 through mid-1999 J. E. Francfort 1 D. V. O'Hara 2 L. A. Slezak 2 Published May 1999 Idaho National Engineering and Environmental Laboratory Automotive Systems and Technology Department Lockheed Martin Idaho Technologies Company Idaho Falls, Idaho 83415 Prepared for the U.S. Department of Energy Idaho Operations Office 1 INEEL/Lockheed Martin Idaho Technologies Co. 2 U.S. Department of Energy iii EXECUTIVE SUMMARY The Field Operations Program is an electric vehicle testing and evaluation program sponsored by U.S. Department of Energy and managed by the Idaho National Engineering and Environmental

245

Coherence of neutron fields  

Science Journals Connector (OSTI)

Glauber's definition of quantum coherence is used for neutron fields under the assumption that the complete occupation number space is a direct product of Fermi subspaces. As a result, completely coherent microfields are obtained which define a density operator in full analogy to Glauber's P representation of boson fields. For better physical significance, a transformation from the P representation to a momentum representation is performed. It is proved that the second-order coherence function in this representation is equivalent to Wolf's second-order coherence function of a classical Dirac field. Finally, the results of the theory are used to calculate explicitly the second-order coherence function and the coherence time of an ideally collimated neutron beam.

E. Ledinegg and E. Schachinger

1983-05-01T23:59:59.000Z

246

Pulsed hybrid field emitter  

DOE Patents [OSTI]

A hybrid emitter exploits the electric field created by a rapidly depoled ferroelectric material. Combining the emission properties of a planar thin film diamond emitter with a ferroelectric alleviates the present technological problems associated with both types of emitters and provides a robust, extremely long life, high current density cathode of the type required by emerging microwave power generation, accelerator technology and display applications. This new hybrid emitter is easy to fabricate and not susceptible to the same failures which plague microstructure field emitter technology. Local electrode geometries and electric field are determined independently from those for optimum transport and brightness preservation. Due to the large amount of surface charge created on the ferroelectric, the emitted electrons have significant energy, thus eliminating the requirement for specialized phosphors in emissive flat-panel displays.

Sampayan, Stephen E. (Manteca, CA)

1998-01-01T23:59:59.000Z

247

Quantized Gravitational Field  

Science Journals Connector (OSTI)

A gravitational action operator is constructed that is invariant under general coordinate transformations and local Lorentz (gauge) transformations. To interpret the formalism the arbitrariness in description must be restricted by introducing gauge conditions and coordinate conditions. The time gauge is defined by locking the time axes of the local coordinate systems to the general coordinate time axis. The resulting form of the action operator, including the contribution of a spinless matter field, enables canonical pairs of variables to be identified. There are four field variables that lack canonical partners, in virtue of differential constraint equations, which can be interpreted as space-time coordinate displacements. In a physically distinguished class of coordinate system the gravitational field variables are not explicit functions of the coordinate displacement parameters. There remains the freedom of Lorentz transformation. The generators of spatial translations and rotations have the correct commutation properties. The question of Lorentz invariance is left undecided since the energy density operator is only given implicitly.

Julian Schwinger

1963-05-01T23:59:59.000Z

248

Increased brain size in mammals is associated with size variations in gene families with cell signalling, chemotaxis and immune-related functions  

Science Journals Connector (OSTI)

...author and source are credited. Increased brain size in mammals is associated with size...not accounted for by known correlates of brain size such as maximum lifespan or body size...are prominently expressed in the human brain, particularly the cortex, and organized...

2014-01-01T23:59:59.000Z

249

Increasing the Competitiveness of Small and Medium-sized Enterprises  

Open Energy Info (EERE)

Page Page Edit with form History Facebook icon Twitter icon » Increasing the Competitiveness of Small and Medium-sized Enterprises Through the Use of Environmentally Sound Technologies Jump to: navigation, search Tool Summary LAUNCH TOOL Name: Increasing the Competitiveness of Small and Medium-sized Enterprises Through the Use of Environmentally Sound Technologies: : Assessing the Potential for the Development of Second-generation Biofuels in the ESCWA Region Agency/Company /Organization: United Nations Economic and Social Commission for Western Asia Sector: Energy Focus Area: Renewable Energy, Biomass Topics: Market analysis, Policies/deployment programs, Background analysis, Technology characterizations Resource Type: Guide/manual, Lessons learned/best practices

250

Anomalous Finite-Size Effect in Superconducting Josephson Junction Arrays  

SciTech Connect (OSTI)

We show that a previously reported discrepancy between simulations of superconducting Josephson junction arrays and the theoretical analysis of Ambegaokar, Halperin, Nelson, and Siggia (AHNS) [Phys. Rev. Lett. 40, 783 (1978)] is rooted in a peculiar finite-size effect under periodic boundary conditions. Our simulation results for the largest array support the power-law I-V curves predicted by AHNS. Analysis of the vortex dynamics reveals two intrinsic length scales set by the applied current, which define three size regimes with distinctive I-V characteristics.

Chen, Qing-Hu; Tang, Lei-Han; Tong, Peiqing

2001-08-06T23:59:59.000Z

251

Dust size distribution and concentrations with cottonseed oil mills  

E-Print Network [OSTI]

-VOLUME SAMPLES FOR P. S. D OF PARTICLES & 100 um DIAMETER (MMD) ANALYSIS OF VARIANCE ON HIGH-VOLUME SAMPLES FOR P. S. D. OF PARTICLES & 100 um DIAMETER (og) MULTIPLE RANGE TEST FOR MEAN VALUES OF MMD BY AREA MULTIPLE RANGE TEST OF MMD BY MILL PARTICLE SIZE... TEST OF AREA DUST CONCENTRATIONS = 15 Pm IN DIAMETER MULTIPLE RANGE TEST OF MILL DUST CONCENTRATIONS & 15 um IN DIAMETER ANALYSIS OF VARIANCE ON PARTICLE SIZING HEAD SAMPLES OF CONCENTRATIONS FOR PARTICLES & 100 IJBI DIAMETER . . . . 47 47 54...

Wiederhold, Lee Roy

2012-06-07T23:59:59.000Z

252

Fields and Quantum Mechanics  

E-Print Network [OSTI]

The quantum field theories (QFT) constructed in [1,2] include phenomenology of interest. The constructions approximate: scattering by $1/r$ and Yukawa potentials in non-relativistic approximations; and the first contributing order of the Feynman series for Compton scattering. To have a semi-norm, photon states are constrained to transverse polarizations and for Compton scattering, the constructed cross section deviates at large momentum exchanges from the cross section prediction of the Feynman rules. Discussion includes the incompatibility of canonical quantization with the constructed interacting fields, and the role of interpretations of quantum mechanics in realizing QFT.

Glenn Eric Johnson

2014-12-21T23:59:59.000Z

253

SP - 19 Magnetic Field Safety  

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

19 Page 1 Revision 02 August 6, 2007 NATIONAL HIGH MAGNETIC FIELD LABORATORY NHMFL FLORIDA STATE UNIVERSITY SAFETY PROCEDURE SP-19 MAGNETIC FIELD SAFETY ...

254

Magnetic agglomeration method for size control in the synthesis of magnetic nanoparticles  

DOE Patents [OSTI]

A method for controlling the size of chemically synthesized magnetic nanoparticles that employs magnetic interaction between particles to control particle size and does not rely on conventional kinetic control of the reaction to control particle size. The particles are caused to reversibly agglomerate and precipitate from solution; the size at which this occurs can be well controlled to provide a very narrow particle size distribution. The size of particles is controllable by the size of the surfactant employed in the process; controlling the size of the surfactant allows magnetic control of the agglomeration and precipitation processes. Agglomeration is used to effectively stop particle growth to provide a very narrow range of particle sizes.

Huber, Dale L. (Albuquerque, NM)

2011-07-05T23:59:59.000Z

255

Neutron scattering studies of crude oil viscosity reduction with electric field  

Science Journals Connector (OSTI)

Abstract The small angle neutron scattering experiment has confirmed the theoretical prediction that a strong electric field induces the suspended nano-particles inside crude oil to aggregate into short chains along the field direction. This aggregation breaks the symmetry, making the viscosity anisotropic: along the field direction, the viscosity is significantly reduced. The experiment enables us to determine the induced chain size and shape, verifies that the electric field works for all kinds of crude oils, paraffin-based, asphalt-based, and mix-based. The basic physics of such field induced viscosity reduction is applicable to all kinds of suspensions.

R. Tao; E. Du; H. Tang; X. Xu

2014-01-01T23:59:59.000Z

256

Maxwell field with Torsion  

E-Print Network [OSTI]

We propose a generalizing gauge-invariant model of propagating torsion which couples to the Maxwell field and to charged particles. As a result we have an Abelian gauge invariant action which leads to a theory with nonzero torsion and which is consistent with available experimental data.

R. Fresneda; M. C. Baldiotti; T. S. Pereira

2014-08-02T23:59:59.000Z

257

Electromagnetic Field Theory  

E-Print Network [OSTI]

physicists around the world and from WWW `hit' statistics it seems that the book serves as a frequently used formulation of classical electrodynamics, force, momentum and energy of the electromagnetic field, radiation and scope to make it useful in higher university education anywhere in the world, it was produced within

Hart, Gus

258

Home Workspace Field Description  

E-Print Network [OSTI]

Proposal Management Reviewer Home Workspace Field Description Last updated: 4/1/2013 1 of 2 http://eresearch.umich.edu Proposal Management Reviewer Home Workspace Your Home Workspace is your launch pad for eResearch Proposal to the project. Who Can See the Reviewer Home Workspace: People with Reviewer or Reviewer Who Can Sign access

Shyy, Wei

259

Bacteriochlorophyll in Electric Field  

Science Journals Connector (OSTI)

We have used time dependent density functional theory (TDDFT) and a multilevel perturbation model to study the transition energies, polarizability, and dipole moments of a bacteriochlorophyll in an electric field. ... coupling strengths yield Car(S1)-to-BChl(Qy) excitation energy transfer times that are in good agreement with recent exptl. ...

Pär Kjellberg; Zhi He; Tõnu Pullerits

2003-11-15T23:59:59.000Z

260

Facilities Management Field Services  

E-Print Network [OSTI]

that have gone on there in 2006. My department, Geological Sciences, makes use of all of the field stations the geology of the Australian Plate. Stakeholders who employ geoscience graduates tell use loud and clear of Earth Sciences, ANU, Canberra, to determine the crystallization ages of rocks and minerals using uranium

Hickman, Mark

Note: This page contains sample records for the topic "field size mmboe" 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

Video Communications Systems 2 LifeSize Video Communications Systems User Guide  

E-Print Network [OSTI]

LifeSize® Video Communications Systems User Guide #12;2 LifeSize Video Communications Systems User-9301 #12;LifeSize Video Communications Systems User Guide 3 Welcome to LifeSize Video Communications Systems LifeSize high definition video communications systems enable anyone with dispersed colleagues

262

Cost Analysis using Automatic Size and Time Inference  

E-Print Network [OSTI]

Cost Analysis using Automatic Size and Time Inference #19; Alvaro J. Reb#19;on Portillo 1 , Kevinunchen, Institut fur Informatik, D 80538 Munchen, Germany hwloidl@informatik.uni-muenchen.de Abstract Cost that is capable of determining upper bounds for both time and space costs, and which we initially intend to apply

St Andrews, University of

263

Design and sizing of electromagnetic linear actuators for valve applications  

E-Print Network [OSTI]

, a description of the design and sizing of variable reluctance or permanent magnet devices is given. The main, concerning magnetic saturation, the section of this shaft will have to be greater than a minimal value. So qualities of each structure are enhanced. Keywords: Linear motion actuator, variable reluctance, permanent

Paris-Sud XI, Université de

264

Energy Efficiency Programs for Small and Medium Sized Industry  

E-Print Network [OSTI]

site. In this paper, we will examine the ways in which decisions are made in small and medium-sized facilities. A review of existing energy efficiency programs geared toward this sector will be analyzed. We will look into some of the failures...

Shipley, A. M.; Elliott, R. N.

265

Improving large-sized PLC programs verification using abstractions  

E-Print Network [OSTI]

Improving large-sized PLC programs verification using abstractions V. Gourcuff O. de Smet J [2005]) models of PLC programs, which can be verified with well- known model-checkers, like UPPAAL the development of industrial PLC programs up to now (John- son [2007]). Several reasons can explain

Paris-Sud XI, Université de

266

Contrasting size evolution in marine and freshwater diatoms  

E-Print Network [OSTI]

in both marine and freshwater envi- ronments, contributing up to 25% of the world's primary pro- ductivity differences. Constant and pulsed phosphorus supply select for small sizes, as does constant nitrogen supply determine the flow of energy and materials to higher trophic levels and, hence, the structure

267

Size-consistent Brueckner theory limited to double substitutions  

Science Journals Connector (OSTI)

A size-consistent set of equations for electron correlation which are limited to double substitutions, based on Brueckner orbitals, is discussed. Called BD theory, it is shown that at fifth order of perturbation theory, BD incorporates more terms than CCSD and QCISD. The simplicity of the equations leads to an elegant gradient theory. Preliminary applications are reported.

Nicholas C. Handy; John A. Pople; Martin Head-Gordon; Krishnan Raghavachari; Gary W. Trucks

1989-01-01T23:59:59.000Z

268

Note on the size of binary Armstrong codes Aart Blokhuis  

E-Print Network [OSTI]

Note on the size of binary Armstrong codes Aart Blokhuis , Andries Brouwer, Attila Sali April 19, 2012 Abstract We show for binary Armstrong codes Arm(2, k, n) that asymptotically n/k 1.224, while) for all admissible n. Keywords: coding theory; databases; Armstrong codes AMS subject classification: 94B

Brouwer, Andries E.

269

Note on the size of binary Armstrong codes Aart Blokhuis  

E-Print Network [OSTI]

Note on the size of binary Armstrong codes Aart Blokhuis , Andries Brouwer, Attila Sali February 20, 2012 Abstract We show for binary Armstrong codes Arm(2, k, n) that asymptotically n/k 1.224, while) for all admissible n. Keywords: coding theory; databases; Armstrong codes AMS subject classification: 94B

Brouwer, Andries E.

270

Azeotropic Distillation as a Technique for Emulsion Size Reduction  

E-Print Network [OSTI]

Prism/PCCM #12;Overview -Intro- What is Microfluidics? What is Heterogeneous Azeotropic Distillation to produce with a narrow size distribution by way of microfluidics. Want to make emulsions with droplets 30. Depiction of particles lodging in the lung capillary bed. #12;Background Microfluidic Droplet Generation

Petta, Jason

271

A QuikSCAT climatology of tropical cyclone size  

E-Print Network [OSTI]

QuikSCAT data of near-surface wind vectors for the years 1999–2008 are used to create a climatology of tropical cyclone (TC) size, defined as the radius of vanishing winds. The azimuthally-averaged radius of 12 ms?1 [ms ...

Chavas, Daniel Robert

272

Method of controlling crystallite size in nuclear-reactor fuels  

DOE Patents [OSTI]

Improved spherules for making enhanced forms of nuclear-reactor fuels are prepared by internal gelation procedures within a sol-gel operation and are accomplished by first boiling the concentrated HMTA-urea feed solution before engaging in the spherule-forming operation thereby effectively controlling crystallite size in the product spherules.

Lloyd, Milton H. (Oak Ridge, TN); Collins, Jack L. (Knoxville, TN); Shell, Sam E. (Oak Ridge, TN)

1985-01-01T23:59:59.000Z

273

A simple way to measure particle size in fluegases  

SciTech Connect (OSTI)

The size range of particles found in fluegases from stationary emission sources, such as combustion stacks, is an important process parameter. Particle-size range not only affects plume opacity and dispersion modeling, but it is a key factor in the selection and design of air-pollution-control equipment, such as cyclones, bag filters and electrostatic precipitators. The particle-size distribution of a fluegas stream is also a useful parameter for analyzing the performance efficiency of combustion equipment and particulate-removal systems. While several laboratories use costly, laser-beam techniques to carry out this task, no standard method to date has been developed to determine the size range of particles in stationary sources. This article discusses a method (described in US EPA Method 5) in which particles in gases circulating in a stack are collected isokinetically in a filter. Once collected, the particles are measured using an optical microscope. Despite some limitations, this relatively inexpensive method gives reproducible results in many applications. Several are described.

Gomes, J.F.P. [Inst. de Soldadura e Qualidade, Oerias (Portugal)

1998-03-01T23:59:59.000Z

274

THE EFFECT OF FLORAL DISPLAY SIZE ON POLLINATOR VISITATION Introduction  

E-Print Network [OSTI]

. Hence they achieve higher fitness through the female function (= seed production). Another hypothesis is heritable, and pollinator behavior can drive selection for large display size. Rubber Rabbitbrush inflorescences. The flowers are pollinated by a variety of insects. Flower production exceeds seed production

Cavitt, John F.

275

PROGRAM OVERVIEW Australia is the size of continental  

E-Print Network [OSTI]

PROGRAM OVERVIEW Australia is the size of continental USA with about 1/15 of the population. It is the fourth most urban country and yet most Americans know Australia as "outback" and rural country. In a wet year, Australia is dry. Australia exports natural resources. It is "bordered" by the fourth most

Liskiewicz, Maciej

276

Cell Size Distributions of Soil Bacterial and Archaeal Taxa  

Science Journals Connector (OSTI)

...Boulder, Colorado, USA b Cell size is...range of life history attributes, including...maintenance energy requirements...their nutrient and energy requirements...microbial life history strategies? There...ecology and life history strategies of...McDonald, D , MN Price, J Goodrich...

Maria C. Portillo; Jonathan W. Leff; Christian L. Lauber; Noah Fierer

2013-09-27T23:59:59.000Z

277

Brief Communications Why Sex Matters: Brain Size Independent Differences in  

E-Print Network [OSTI]

Brief Communications Why Sex Matters: Brain Size Independent Differences in Gray Matter, Germany The different brain anatomy of men and women is both a classic and continuing topic of major interest. Among the most replicated and robust sex differences are larger overall brain dimensions in men

Gaser, Christian

278

CTB Ground Strap Size Document Number R ev  

E-Print Network [OSTI]

5 5 4 4 3 3 2 2 1 1 D D C C B B A A CTB Ground Strap Title Size Document Number R ev Date: Sheet o Body 5x"VNTC"#10awgrated33A Actualoperating=11Amax. Belden 83029 #18 awg rated 10 A max. Actual

Llope, William J.

279

The Hydrogen Atom with a Finite Sized Nucleus Frank Rioux  

E-Print Network [OSTI]

r( ) Reduced mass: 1 Angular momentum: L 0 Integration limit: rmax 7 Energy guess: E 0.496 r 0 .01 of nuclear size on the ground state energy of the hydrogen atom's electron. The traditional approach assumes radius, the potential energy of the electron is as given below. Nuclear radius: Rn 0.1 Potential energy

Rioux, Frank

280

A Transformed Lagged Ensemble Forecasting Technique for Increasing Ensemble Size  

E-Print Network [OSTI]

A Transformed Lagged Ensemble Forecasting Technique for Increasing Ensemble Size Andrew. R.Lawrence@ecmwf.int #12;Abstract An ensemble-based data assimilation approach is used to transform old en- semble. The impact of the transformations are propagated for- ward in time over the ensemble's forecast period

Hansens, Jim

Note: This page contains sample records for the topic "field size mmboe" 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

Phylogeny versus body size as determinants of food web structure  

Science Journals Connector (OSTI)

...versus body size as determinants of food web structure Russell E. Naisbit 1 Rudolf...Changins-Wadenswil, 1260 Nyon, Switzerland. Food webs are the complex networks of trophic interactions...features. However, apparently realistic food webs can be generated by models invoking either...

2012-01-01T23:59:59.000Z

282

Combined Transistor Sizing with Bu er Insertion for Timing Optimization  

E-Print Network [OSTI]

, to achieve bet- ter power-delay and area-delay tradeo s. The delay model incorporates placement-based information and the e ect of input slew rates on gate delays. The re- sults obtained by using the new method gate Gi is mod- eled by an equivalent inverter. The relation between the gate sizes in the equivalent

Sapatnekar, Sachin

283

Convex Delay Models for Transistor Sizing Mahesh Ketkar  

E-Print Network [OSTI]

for developing accurate con- vex delay models to be used for transistor sizing. A new rich class of convex]: minimize Area or Power subject to Delay Tspec: (1) There have been many significant attempts to solve. in the development of closed form models for inverters and then mapping other gates to an equivalent inverter [5, 6

Sapatnekar, Sachin

284

Radiation effects in Si-Ge quantum size structure (Review)  

SciTech Connect (OSTI)

The article is dedicated to the review and analysis of the effects and processes occurring in Si-Ge quantum size semiconductor structures upon particle irradiation including ion implantation. Comparisons to bulk materials are drawn. The reasons of the enhanced radiation hardness of superlattices and quantum dots are elucidated. Some technological applications of the radiation treatment are reviewed.

Sobolev, N. A., E-mail: sobolev@ua.pt [Universidade de Aveiro, Departamento de Fisica and I3N (Portugal)

2013-02-15T23:59:59.000Z

285

agreement with the size of the estimated pseudo-field (45 nm). The density-of-states peaks ob-  

E-Print Network [OSTI]

by combining the 1 SD in the addition energy variation for the first and last set of energies in Fig. 3G Electrical Wind Force­Driven and Dislocation-Templated Amorphization in Phase-Change Nanowires Sung-Wook Nam

Chen, Sow-Hsin

286

C:\\Don\\MTG-2004\\Michigan\\V-PDF\\V12L.doc Evaluation of Magnetic Fields as Shielding  

E-Print Network [OSTI]

effectiveness. A 1/r3 magnetic field requires very large magnetic fields. A 1/r2 magnetic field (the M2P2 mini by R. Winglee. MHD variable grid* 11 grid size levels (51 X boxes, 41 Y boxes, 41 Z boxes Contained in each grid level) Each grid box contains magnetic field vectors Bx, By, Bz *~ 43 Mb #12;C:\\Don\\MTG-2004

Shepherd, Simon

287

Quantitative CT of lung nodules: Dependence of calibration on patient body size, anatomic region, and calibration nodule size for single- and dual-energy techniques  

SciTech Connect (OSTI)

Calcium concentration may be a useful feature for distinguishing benign from malignant lung nodules in computer-aided diagnosis. The calcium concentration can be estimated from the measured CT number of the nodule and a CT number vs calcium concentration calibration line that is derived from CT scans of two or more calcium reference standards. To account for CT number nonuniformity in the reconstruction field, such calibration lines may be obtained at multiple locations within lung regions in an anthropomorphic phantom. The authors performed a study to investigate the effects of patient body size, anatomic region, and calibration nodule size on the derived calibration lines at ten lung region positions using both single energy (SE) and dual energy (DE) CT techniques. Simulated spherical lung nodules of two concentrations (50 and 100 mg/cc CaCO{sub 3}) were employed. Nodules of three different diameters (4.8, 9.5, and 16 mm) were scanned in a simulated thorax section representing the middle of the chest with large lung regions. The 4.8 and 9.5 mm nodules were also scanned in a section representing the upper chest with smaller lung regions. Fat rings were added to the peripheries of the phantoms to simulate larger patients. Scans were acquired on a GE-VCT scanner at 80, 120, and 140 kVp and were repeated three times for each condition. The average absolute CT number separations between the calibration lines were computed. In addition, under- or overestimates were determined when the calibration lines for one condition (e.g., small patient) were used to estimate the CaCO{sub 3} concentrations of nodules for a different condition (e.g., large patient). The authors demonstrated that, in general, DE is a more accurate method for estimating the calcium contents of lung nodules. The DE calibration lines within the lung field were less affected by patient body size, calibration nodule size, and nodule position than the SE calibration lines. Under- or overestimates in CaCO{sub 3} concentrations of nodules were also in general smaller in quantity with DE than with SE. However, because the slopes of the calibration lines for DE were about one-half the slopes for SE, the relative improvement in the concentration estimates for DE as compared to SE was about one-half the relative improvement in the separation between the calibration lines. Results in the middle of the chest thorax section with large lungs were nearly completely consistent with the above generalization. On the other hand, results in the upper-chest thorax section with smaller lungs and greater amounts of muscle and bone were mixed. A repeat of the entire study in the upper thorax section yielded similar mixed results. Most of the inconsistencies occurred for the 4.8 mm nodules and may be attributed to errors caused by beam hardening, volume averaging, and insufficient sampling. Targeted, higher resolution reconstructions of the smaller nodules, application of high atomic number filters to the high energy x-ray beam for improved spectral separation, and other future developments in DECT may alleviate these problems and further substantiate the superior accuracy of DECT in quantifying the calcium concentrations of lung nodules.

Goodsitt, Mitchell M.; Chan, Heang-Ping; Way, Ted W.; Schipper, Mathew J.; Larson, Sandra C.; Christodoulou, Emmanuel G. [Department of Radiology, University of Michigan, Ann Arbor, Michigan 48109-5842 (United States)

2009-07-15T23:59:59.000Z

288

SMOOTH OIL & GAS FIELD OUTLINES MADE FROM BUFFERED WELLS  

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

The VBA code provided at the bottom of this document is an updated version The VBA code provided at the bottom of this document is an updated version (from ArcGIS 9.0 to ArcGIS 9.2) of the polygon smoothing algorithm described below. A bug that occurred when multiple wells had the same location was also fixed. SMOOTH OIL & GAS FIELD OUTLINE POLYGONS MADE FROM BUFFERED WELLS Why smooth buffered field outlines? See the issues in the figure below: [pic] The smoothing application provided as VBA code below does the following: Adds area to the concave portions; doesn't add area to convex portions to maintain buffer spacing Fills in non-field "islands" smaller than buffer size Joins separate polygon rings with a "bridge" if sufficiently close Minimizes increase in total field area Methodology: creates trapezoids between neighboring wells within an oil/gas

289

Field Offices | U.S. DOE Office of Science (SC)  

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

Field Offices Field Offices About Organization Budget Field Offices Federal Advisory Committees History Scientific and Technical Information Honors & Awards Jobs Brochures, Logos, & Information Resources Contact Contact Information Office of Science U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 Field Offices Print Text Size: A A A RSS Feeds FeedbackShare Page The Office of Science is accountable for the effective stewardship and management of ten world class laboratories, and employs a performance based management and operating contract model to achieve these objectives. Each Office of Science Site Office oversees the operation of their respective laboratory: Ames Site Office (AMSO) Argonne Site Office (ASO) Berkeley Site Office (BSO)

290

Transverse electric fields' effects in the Dark Energy Camera CCDs  

E-Print Network [OSTI]

Spurious electric fields transverse to the surface of thick, fully-depleted, high-resistivity CCDs displace the photo-generated charges in the bulk of the detector, effectively modifying the pixel area and producing noticeable signals in astrometric and photometric measurements. We use data from the science verification period of the Dark Energy Survey (DES) to characterize these effects in the Dark Energy Camera (DECam) CCDs. The transverse fields mainly manifest as concentric rings (tree rings) and bright stripes near the boundaries of the detectors (edge distortions) with relative amplitudes of about 1 % and 10 % in the flat-field images, respectively. Their nature as pixel size variations is confirmed by comparing their photometric and astrometric signatures. Using flat-field images from DECam, we derive templates in the five DES photometric bands (grizY) for the tree rings and the edge distortions as a function of their position in each DECam detector. The templates are directly incorporated into the der...

Plazas, Andres; Sheldon, Erin

2014-01-01T23:59:59.000Z

291

StochasticModeling of the Independent Roles of Particle Size and Grain Size in Transgranular Cleavage Fracture  

E-Print Network [OSTI]

Cleavage Fracture TSANN LIN, A. G. EVANS, and R. O. RITCHIE The independent roles of grain size. INTRODUCTION CLEAVAGE fracture in most metals occurs by the nu- cleation of a microcrack, assisted by the local, concentrated, tensile stress exceeds some critical fracture stress. In mild steels, such microcracks were

Ritchie, Robert

292

Field-regulated force by grafted polyelectrolytes  

E-Print Network [OSTI]

Generation of mechanical force regulated by external electric field is studied both theoretically and by molecular dynamics (MD) simulations. The force arises in deformable bodies linked to the free end of a grafted polyelectrolyte chain which is exposed to electric field that favours its adsorption. We consider a few target bodies with different force-deformation relations including (i) linear and (ii) cubic dependences as well as (iii) Hertzian-like force. Such force-deformation relations mimic the behaviour of (i) coiled and (ii) stretched polymer chains, respectively, or (iii) that of a squeezed colloidal particle. The magnitude of the arising force varies over a wide interval although the electric field alters within a relatively narrow range only. The predictions of our theory agree quantitatively well with the results of numerical simulations. Both cases of zero and finite electrical current are investigated and we do not obtain substantial differences in the force generated. The phenomenon studied could possibly be utilised to design, e.g., vice-like devices to fix nano-sized objects.

Christian Seidel; Yury A. Budkov; Nikolay V. Brilliantov

2014-11-08T23:59:59.000Z

293

Method for sizing and desizing yarns with liquid and supercritical carbon dioxide solvent  

DOE Patents [OSTI]

Disclosed is a method of sizing and desizing yarn, or more specifically to a method of coating yarn with size and removing size from yarn with liquid carbon dioxide solvent. 3 figs.

Fulton, J.L.; Yonker, C.R.; Hallen, R.R.; Baker, E.G.; Bowman, L.E.; Silva, L.J.

1999-01-26T23:59:59.000Z

294

Annealing Simulations of Nano-Sized Amorphous Structures in SiC...  

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

Simulations of Nano-Sized Amorphous Structures in SiC. Annealing Simulations of Nano-Sized Amorphous Structures in SiC. Abstract: A two-dimensional model of a nano-sized amorphous...

295

Comparison between direct methods for determination of microbial cell volume: electron microscopy and electronic particle sizing.  

Science Journals Connector (OSTI)

...than those processed for electronic particle sizing, reflecting...Electron Microscopy and Electronic Particle Sizing E. MONTESINOS...ofMicrobiology and Institute for Fundamental Biology, Autonomous University...transmission electron microscopy and electronic particle sizing. Statistically...

E Montesinos; I Esteve; R Guerrero

1983-05-01T23:59:59.000Z

296

Fundamental properties of field emission-driven direct current microdischarges  

SciTech Connect (OSTI)

For half a century, it has been known that the onset of field emission in direct current microdischarges with gap sizes less than 10 {mu}m can lead to breakdown at applied voltages far less than predicted by Paschen's law. It is still unclear how field emission affects other fundamental plasma properties at this scale. In this work, a one-dimensional fluid model is used to predict basic scaling laws for fundamental properties including ion density, electric field due to space charge, and current-voltage relations in the pre-breakdown regime. Computational results are compared with approximate analytic solutions. It is shown that field emission provides an abundance of cathode electrons, which in turn create large ion concentrations through ionizing collisions well before Paschen's criterion for breakdown is met. Breakdown due to ion-enhanced field emission occurs when the electric field due to space charge becomes comparable to the applied electric field. Simple scaling analysis of the 1D Poisson equation demonstrates that an ion density of n{sub +} Almost-Equal-To 0.1V{sub A}{epsilon}{sub 0}/qd{sup 2} is necessary to significantly distort the electric field. Defining breakdown in terms of this critical ion density leads analytically to a simple, effective secondary emission coefficient {gamma}{sup Prime} of the same mathematical form initially suggested by Boyle and Kisliuk [Phys. Rev. 97, 255 (1955)].

Rumbach, Paul; Go, David B. [Department of Aerospace and Mechanical Engineering, University of Notre Dame, Notre Dame, Indiana 46556 (United States)

2012-11-15T23:59:59.000Z

297

Effect of net surface charge on particle sizing and material recognition by using phase Doppler anemometry  

SciTech Connect (OSTI)

By taking net surface charge into consideration, the scattering field of particles illuminated by dual laser beams of phase Doppler anemometry (PDA) is computed based on Mie's theory, and the effect of net surface charge on the phase-diameter relationship and the phase ratio is studied. It is found that the phase-diameter relationship and the relationship between the phase ratio and the refractive index of charged particles could be significantly different from those of uncharged particles, which would lead to errors in particle sizing and the measurement of refractive indices. A method of recognizing charged particles and determining the value of their surface conductivity, which is related to net surface charge, is proposed by utilizing the effect of net surface charge on the measurement of refractive indices using PDA.

Zhou Jun; Xie Li

2011-01-20T23:59:59.000Z

298

Methane Hydrate Field Program  

SciTech Connect (OSTI)

This final report document summarizes the activities undertaken and the output from three primary deliverables generated during this project. This fifteen month effort comprised numerous key steps including the creation of an international methane hydrate science team, determining and reporting the current state of marine methane hydrate research, convening an international workshop to collect the ideas needed to write a comprehensive Marine Methane Hydrate Field Research Plan and the development and publication of that plan. The following documents represent the primary deliverables of this project and are discussed in summary level detail in this final report. • Historical Methane Hydrate Project Review Report • Methane Hydrate Workshop Report • Topical Report: Marine Methane Hydrate Field Research Plan • Final Scientific/Technical Report

None

2013-12-31T23:59:59.000Z

299

High-Resolution UV Relay Lens for Particle Size Distribution Measurements Using Holography  

SciTech Connect (OSTI)

Shock waves passing through a metal sample can produce ejecta particulates at a metal-vacuum interface. Holography records particle size distributions by using a high-power, short-pulse laser to freeze particle motion. The sizes of the ejecta particles are recorded using an in-line Fraunhofer holography technique. Because the holographic plate would be destroyed in an energetic environment, a high-resolution lens has been designed to relay the interference fringes to a safe environment. Particle sizes within a 12-mm-diameter, 5-mm-thick volume are recorded onto holographic film. To achieve resolution down to 0.5 ?m, ultraviolet laser (UV) light is needed. The design and assembly of a nine-element lens that achieves >2000 lp/mm resolution and operates at f/0.89 will be described. To set up this lens system, a doublet lens is temporarily attached that enables operation with 532-nm laser light and 1100 lp/mm resolution. Thus, the setup and alignment are performed with green light, but the dynamic recording is done with UV light. During setup, the 532-nm beam provides enough focus shift to accommodate the placement of a resolution target outside the ejecta volume; this resolution target does not interfere with the calibrated wires and pegs surrounding the ejecta volume. A television microscope archives images of resolution patterns that prove that the calibration wires, interference filter, holographic plate, and relay lenses are in their correct positions. Part of this lens is under vacuum, at the point where the laser illumination passes through a focus. Alignment and tolerancing of this high-resolution lens will be presented, and resolution variation through the 5-mm depth of field will be discussed.

Malone, Robert M.; Capelle, Gene A.; Frogget, Brent C.; Grover, Mike; Kaufman, Morris I.; Pazuchanics, Peter; Sorenson, Danny S.; Stevens, Gerald D.; Tibbits, Aric; Turley, William D.

2008-08-29T23:59:59.000Z

300

Ca rlsbad Field Office  

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

En ergy En ergy Ca rlsbad Field Office P. O . Box 3090 Carlsbad , New Mexico 88221 AUG 2 9 2013 Mr. John E. Kieling , Chief Hazardous Waste Bureau New Mexico Environment Department 2905 Rodeo Park Drive East, Building 1 Santa Fe, New Mexico 87505-6303 Subject: Notification of Class 1 Permit Modification to the Waste Isolation Pilot Plant Hazardous Waste Facility Permit Number: NM4890139088-TSDF

Note: This page contains sample records for the topic "field size mmboe" 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

Microbial field pilot study  

SciTech Connect (OSTI)

The objective of this project is to perform a microbial enhanced oil recovery field pilot in the Southeast Vassar Vertz Sand Unit (SEVVSU) in Payne County, Oklahoma. Indigenous, anaerobic, nitrate reducing bacteria will be stimulated to selectively plug flow paths which have been referentially swept by a prior waterflood. This will force future flood water to invade bypassed regions of the reservoir and increase sweep efficiency. This report covers progress made during the second year, January 1, 1990 to December 31, 1990, of the Microbial Field Pilot Study project. Information on reservoir ecology, surface facilities design, operation of the unit, core experiments, modeling of microbial processes, and reservoir characterization and simulation are presented in the report. To better understand the ecology of the target reservoir, additional analyses of the fluids which support bacteriological growth and the microbiology of the reservoir were performed. The results of the produced and injected water analysis show increasing sulfide concentrations with respect to time. In March of 1990 Mesa Limited Partnership sold their interest in the SEVVSU to Sullivan and Company. In April, Sullivan and Company assumed operation of the field. The facilities for the field operation of the pilot were refined and implementation was begun. Core flood experiments conducted during the last year were used to help define possible mechanisms involved in microbial enhanced oil recovery. The experiments were performed at SEVVSU temperature using fluids and inoculum from the unit. The model described in last year`s report was further validated using results from a core flood experiment. The model was able to simulate the results of one of the core flood experiments with good quality.

Knapp, R.M.; McInerney, M.J.; Menzie, D.E.; Chisholm, J.L.

1992-03-01T23:59:59.000Z

302

Microbial field pilot study  

SciTech Connect (OSTI)

The objective of this project is to perform a microbial enhanced oil recovery field pilot in the Southeast Vassar Vertz Sand Unit (SEVVSU) in Payne County, Oklahoma. Indigenous, anaerobic, nitrate reducing bacteria will be stimulated to selectively plug flow paths which have been referentially swept by a prior waterflood. This will force future flood water to invade bypassed regions of the reservoir and increase sweep efficiency. This report covers progress made during the second year, January 1, 1990 to December 31, 1990, of the Microbial Field Pilot Study project. Information on reservoir ecology, surface facilities design, operation of the unit, core experiments, modeling of microbial processes, and reservoir characterization and simulation are presented in the report. To better understand the ecology of the target reservoir, additional analyses of the fluids which support bacteriological growth and the microbiology of the reservoir were performed. The results of the produced and injected water analysis show increasing sulfide concentrations with respect to time. In March of 1990 Mesa Limited Partnership sold their interest in the SEVVSU to Sullivan and Company. In April, Sullivan and Company assumed operation of the field. The facilities for the field operation of the pilot were refined and implementation was begun. Core flood experiments conducted during the last year were used to help define possible mechanisms involved in microbial enhanced oil recovery. The experiments were performed at SEVVSU temperature using fluids and inoculum from the unit. The model described in last year's report was further validated using results from a core flood experiment. The model was able to simulate the results of one of the core flood experiments with good quality.

Knapp, R.M.; McInerney, M.J.; Menzie, D.E.; Chisholm, J.L.

1992-03-01T23:59:59.000Z

303

Microbial Field Pilot Study  

SciTech Connect (OSTI)

This report covers progress made during the first year of the Microbial Field Pilot Study project. Information on reservoir ecology and characterization, facility and treatment design, core experiments, bacterial mobility, and mathematical modeling are addressed. To facilitate an understanding of the ecology of the target reservoir analyses of the fluids which support bacteriological growth and the microbiology of the reservoir were performed. A preliminary design of facilities for the operation of the field pilot test was prepared. In addition, procedures for facilities installation and for injection treatments are described. The Southeast Vassar Vertz Sand Unit (SEVVSU), the site of the proposed field pilot study, is described physically, historically, and geologically. The fields current status is presented and the ongoing reservoir simulation is discussed. Core flood experiments conducted during the last year were used to help define possible mechanisms involved in microbial enhanced oil recovery. Two possible mechanisms, relative permeability effects and changes in the capillary number, are discussed and related to four Berea core experiments' results. The experiments were conducted at reservoir temperature using SEVVSU oil, brine, and bacteria. The movement and activity of bacteria in porous media were investigated by monitoring the growth of bacteria in sandpack cores under no flow conditions. The rate of bacteria advancement through the cores was determined. A mathematical model of the MEOR process has been developed. The model is a three phase, seven species, one dimensional model. Finite difference methods are used for solution. Advection terms in balance equations are represented with a third- order upwind differencing scheme to reduce numerical dispersion and oscillations. The model is applied to a batch fermentation example. 52 refs., 26 figs., 21 tabs.

Knapp, R.M.; McInerney, M.J.; Menzie, D.E.; Chisholm, J.L.

1990-11-01T23:59:59.000Z

304

Hypofractionated Whole-Breast Radiation Therapy: Does Breast Size Matter?  

SciTech Connect (OSTI)

Purpose: To evaluate the effects of breast size on dose-volume histogram parameters and clinical toxicity in whole-breast hypofractionated radiation therapy using intensity modulated radiation therapy (IMRT). Materials and Methods: In this retrospective study, all patients undergoing breast-conserving therapy between 2005 and 2009 were screened, and qualifying consecutive patients were included in 1 of 2 cohorts: large-breasted patients (chest wall separation >25 cm or planning target volume [PTV] >1500 cm{sub 3}) (n=97) and small-breasted patients (chest wall separation <25 cm and PTV <1500 cm{sub 3}) (n=32). All patients were treated prone or supine with hypofractionated IMRT to the whole breast (42.4 Gy in 16 fractions) followed by a boost dose (9.6 Gy in 4 fractions). Dosimetric and clinical toxicity data were collected and analyzed using the R statistical package (version 2.12). Results: The mean PTV V95 (percentage of volume receiving >= 95% of prescribed dose) was 90.18% and the mean V105 percentage of volume receiving >= 105% of prescribed dose was 3.55% with no dose greater than 107%. PTV dose was independent of breast size, whereas heart dose and maximum point dose to skin correlated with increasing breast size. Lung dose was markedly decreased in prone compared with supine treatments. Radiation Therapy Oncology Group grade 0, 1, and 2 skin toxicities were noted acutely in 6%, 69%, and 25% of patients, respectively, and at later follow-up (>3 months) in 43%, 57%, and 0% of patients, respectively. Large breast size contributed to increased acute grade 2 toxicity (28% vs 12%, P=.008). Conclusions: Adequate PTV coverage with acceptable hot spots and excellent sparing of organs at risk was achieved by use of IMRT regardless of treatment position and breast size. Although increasing breast size leads to increased heart dose and maximum skin dose, heart dose remained within our institutional constraints and the incidence of overall skin toxicity was comparable to that reported in the literature. Taken together, these data suggest that hypofractionated radiation therapy using IMRT is a viable and appropriate therapeutic modality in large-breasted patients.

Hannan, Raquibul, E-mail: Raquibul.Hannan@gmail.com [Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas (United States)] [Department of Radiation Oncology, University of Texas Southwestern Medical Center, Dallas, Texas (United States); Thompson, Reid F.; Chen Yu; Bernstein, Karen; Kabarriti, Rafi; Skinner, William [Department of Radiation Oncology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York (United States)] [Department of Radiation Oncology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York (United States); Chen, Chin C. [Department of Radiation Oncology, Columbia University Medical Center, New York, New York (United States)] [Department of Radiation Oncology, Columbia University Medical Center, New York, New York (United States); Landau, Evan; Miller, Ekeni; Spierer, Marnee; Hong, Linda; Kalnicki, Shalom [Department of Radiation Oncology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York (United States)] [Department of Radiation Oncology, Albert Einstein College of Medicine, Montefiore Medical Center, Bronx, New York (United States)

2012-11-15T23:59:59.000Z

305

The dual-mirror Small Size Telescope for the Cherenkov Telescope Array  

E-Print Network [OSTI]

In this paper, the development of the dual mirror Small Size Telescopes (SST) for the Cherenkov Telescope Array (CTA) is reviewed. Up to 70 SST, with a primary mirror diameter of 4 m, will be produced and installed at the CTA southern site. These will allow investigation of the gamma-ray sky at the highest energies accessible to CTA, in the range from about 1 TeV to 300 TeV. The telescope presented in this contribution is characterized by two major innovations: the use of a dual mirror Schwarzschild-Couder configuration and of an innovative camera using as sensors either multi-anode photomultipliers (MAPM) or silicon photomultipliers (SiPM). The reduced plate-scale of the telescope, achieved with the dual-mirror optics, allows the camera to be compact (40 cm in diameter), and low-cost. The camera, which has about 2000 pixels of size 6x6 mm^2, covers a field of view of 10{\\deg}. The dual mirror telescopes and their cameras are being developed by three consortia, ASTRI (Astrofisica con Specchi a Tecnologia Repl...

Pareschi, G; Antonelli, L A; Bastieri, D; Bellassai, G; Belluso, M; Bigongiari, C; Billotta, S; Biondo, B; Bonanno, G; Bonnoli, G; Bruno, P; Bulgarelli, A; Canestrari, R; Capalbi, M; Caraveo, P; Carosi, A; Cascone, E; Catalano, O; Cereda, M; Conconi, P; Conforti, V; Cusumano, G; De Caprio, V; De Luca, A; Di Paola, A; Di Pierro, F; Fantinel, D; Fiorini, M; Fugazza, D; Gardiol, D; Ghigo, M; Gianotti, F; Giarrusso, S; Giro, E; Grillo, A; Impiombato, D; Incorvaia, S; La Barbera, A; La Palombara, N; La Parola, V; La Rosa, G; Lessio, L; Leto, G; Lombardi, S; Lucarelli, F; Maccarone, M C; Malaguti, G; Malaspina, G; Mangano, V; Marano, D; Martinetti, E; Millul, R; Mineo, T; MistÒ, A; Morello, C; Morlino, G; Panzera, M R; Rodeghiero, G; Romano, P; Russo, F; Sacco, B; Sartore, N; Schwarz, J; Segreto, A; Sironi, G; Sottile, G; Stamerra, A; Strazzeri, E; Stringhetti, L; Tagliaferri, G; Testa, V; Timpanaro, M C; Toso, G; Tosti, G; Trifoglio, M; Vallania, P; Vercellone, S; Zitelli, V; Amans, J P; Boisson, C; Costille, C; Dournaux, J L; Dumas, D; Fasola, G; Hervet, O; Huet, J M; Laporte, P; Rulten, C; Sol, H; Zech, A; White, R; Hinton, J; Ross, D; Sykes, J; Ohm, S; Schmoll, J; Chadwick, P; Greenshaw, T; Daniel, M; Cotter, G; Varner, G S; Funk, S; Vandenbroucke, J; Sapozhnikov, L; Buckley, J; Moore, P; Williams, D; Markoff, S; Vink, J; Berge, D; Hidaka, N; Okumura, A; Tajima, H

2013-01-01T23:59:59.000Z

306

Texas Adapted Genetic Strategies for Beef Cattle X: Frame Score, Frame Size, and Weight  

E-Print Network [OSTI]

Texas Adapted Genetic Strategies for Beef Cattle X: Frame Score, Frame Size, and Weight Stephen P. Hammack and Ronald J. Gill* B ody size is an important genetic factor in beef cattle production. Historically, size was first esti...Texas Adapted Genetic Strategies for Beef Cattle X: Frame Score, Frame Size, and Weight Stephen P. Hammack and Ronald J. Gill* B ody size is an important genetic factor in beef cattle production. Historically, size was first esti...

Hammack, Stephen P.; Gill, Ronald J.

2009-04-02T23:59:59.000Z

307

Novel method for quantifying the cell size of marine phytoplankton based on optical measurements  

Science Journals Connector (OSTI)

Phytoplankton size is important for the pelagic food web and oceanic ecosystems. However, the size of phytoplankton is difficult to quantify because of methodological constraints. To...

Lin, Junfang; Cao, Wenxi; Zhou, Wen; Sun, Zhaohua; Xu, Zhantang; Wang, Guifen; Hu, Shuibo

2014-01-01T23:59:59.000Z

308

E-Print Network 3.0 - accessory gland size Sample Search Results  

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

a significant decrease in accessory gland size. The size of the accessory ... Source: Cotton, Sam - Department of Biology, University College London Collection: Environmental...

309

DECIPHERING THE IMPORTANCE OF PITCHER SIZE IN PREY CAPTURE IN THE CARNIVOROUS PLANT, SARRACENIA ALATA WOOD.  

E-Print Network [OSTI]

??Prey capture in pitcher plants has been found to be significantly dependent on pitcher size, but the actual importance of size is not clearly understood.… (more)

Bhattarai, Ganesh Prasad

2007-01-01T23:59:59.000Z

310

E-Print Network 3.0 - affecting body size Sample Search Results  

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

of body size... that parasite body size is optimized and we used the net ... Source: Poulin, Robert - Department of Zoology, University of Otago Collection: Biology and Medicine...

311

Effect of Grain Size on Uranium(VI) Surface Complexation Kinetics...  

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

the contribution of variable grain sizes to uranium adsorptiondesorption in a sediment collected from the US DOE Hanford site. The sediment was wet-sieved into four size...

312

E-Print Network 3.0 - accurate particle size Sample Search Results  

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

size. Particles can... . Particle size and shape can be assessed by evaluating the time-trace of the quadrant detector signal. 1... . Light scattering meas- urements are very...

313

The influence of size, shape, and surface coating on the stability of aqueous nanoparticle suspensions  

E-Print Network [OSTI]

images of each of the nanoparticle starting materials. Scalehistograms that show nanoparticle size distributions can bePrecise control over the nanoparticle size, shape, and

Mulvihill, M.J.

2011-01-01T23:59:59.000Z

314

E-Print Network 3.0 - animal group-size distributions Sample...  

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

Page: << < 1 2 3 4 5 > >> 1 The group-size paradox: effects of learning and patch departure rules Summary: rule; optimal group size; simulation model; social foraging....

315

Pushing The Sample-Size Limit Of Infrared Vibrational Nano-Spectroscop...  

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

The Sample-Size Limit Of Infrared Vibrational Nano-Spectroscopy: From Monolayer Towards Single molecule sensitivity. Pushing The Sample-Size Limit Of Infrared Vibrational...

316

When Size Matters: Yttrium Oxide Breaking Down Under Pressure | Advanced  

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

Breakthrough in Nanocrystals' Growth Breakthrough in Nanocrystals' Growth Next Step to Drought-Resistant Plants? A Boring Material "Stretched" Could Lead to an Electronics Revolution At the Crossroads of Chromosomes Unveiling the Structure of Adenovirus Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed When Size Matters: Yttrium Oxide Breaking Down Under Pressure NOVEMBER 2, 2010 Bookmark and Share Top: Pair distribution function (PDF) of 16 nm-sized Y2O3 at high pressures. Bottom: Lin Wang (left) and Wenge Yang (right) of the Carnegie Institution of Washington shown with the diamond anvil cell and x-ray instrumentation used to probe the PDF of the sample at high applied

317

Microsoft PowerPoint - Novel Nano-size_Yang  

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

Nano-size Oxide Dispersion Nano-size Oxide Dispersion Strengthened Steels Development through Computational and Experimental Study Shizhong Yang, Ebrahim Khosravi Southern University and A & M College 6/12/2013 Pittsburgh, PA Outline Introduction Methods Preliminary Results Future Work Acknowledgement Introduction * Project Period: 6/1/2012 --- 5/31/2015 * Project Manager: Vito Cedro * Project Objectives: (1). Perform interface energy and molecular dynamics/Monte Carlo HPC simulation on the ODS models to screen out the potential high temperature and high pressure ODS candidates. (2). Perform experiments on the high temperature and high pressure property of the most promising ODS systems from the simulation. (3). Students/postdocs training. Introduction 1. The oxide dispersion strengthened (ODS) steel alloys have higher

318

Assess Potential Agency Size Changes that Impact Greenhouse Gases from  

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

Employee Commuting Employee Commuting Assess Potential Agency Size Changes that Impact Greenhouse Gases from Employee Commuting October 7, 2013 - 1:42pm Addthis YOU ARE HERE Step 1 For employee commuting, it is important to account for any planned or expected changes in a Federal agency's size when estimating the greenhouse gas (GHG) reduction potential for different operating units or worksites. Considerations include: Are employment levels expected to change in the next decade at specific facilities or agency-wide? Are there any planned facility moves at major worksites? Employee commute coordinators may want to engage human resources and strategic planners in this effort to establish likely changes in employment numbers. Facility planners may be engaged to understand changes in commutes

319

High-energy protons from submicron-sized targets  

SciTech Connect (OSTI)

Improving of intensity contrast ratio of intense short laser pulses is making it possible to use submicron-sized targets, both spherical and plane, in the interest of proton acceleration for different applications. The way of improving of the ion beam quality is utilization of targets with two ion species - heavy ions (majority) and light ions, e.g. protons, (minority). Two different approaches, analytical theory and particle-in-cell simulations (PIC) are presented for studying the characteristics of laser-triggered ions due to the Coulomb-like mechanism of particle acceleration from submicron-sized targets. The comparative analysis of explosions of heterogeneous (layered) and homogeneously mixed targets for production of best quality ion bunches has been performed. We also found the regime of anisotropic proton acceleration from spherical targets with light and heavy ions relevant to the experiments with submicron-diameter droplets from water spray target irradiated by an ultrashort intense laser pulse.

Bychenkov, V. Yu.; Govras, E. A.; Brantov, A. V.; Popov, K. I. [P. N. Lebedev Physics Institute Russian Academy of Sciences, Moscow 119991 (Russian Federation); P. N. Lebedev Physics Institute Russian Academy of Sciences, Moscow 119991, Russia and All-Russia Research Institute of Automatics, Moscow, 127055 (Russian Federation); P. N. Lebedev Physics Institute Russian Academy of Sciences, Moscow 119991 (Russian Federation); Department of Physics, University of Ottawa, Ottawa, Ontario K1N 6N5 (Canada)

2012-07-11T23:59:59.000Z

320

Inferring Pore Size and Network Structure from Sorption Hysteresis  

E-Print Network [OSTI]

Sorption experiments are widely used to infer the pore size distribution of a mesoporous material. We present a simple model that explains the hysteresis observed on desorption in such experiments. The model is based on well-established relationships between the radius of a pore and the partial pressure at which it will fill, but additionally describes of the connectivity of the pore network. The model is able to explain both primary and scanning sorption isotherms for a range of materials with wide pore size distributions, such as cement paste and dental enamel. It allows quantification of the prevalence of macropores in the material, even though these pores are never filled during the sorption experiments. A distinct bump in the desorption isotherms is attributed to spinodal decomposition (or cavitation) at a partial pressure that depends on temperature, and experiments across a range of sorbents and sorbates are consistent with a universal scaling.

Matthew B. Pinson; Hamlin M. Jennings; Martin Z. Bazant

2014-02-14T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

Table B10. Employment Size Category, Number of Buildings, 1999  

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

0. Employment Size Category, Number of Buildings, 1999" 0. Employment Size Category, Number of Buildings, 1999" ,"Number of Buildings (thousand)" ,"All Buildings","Number of Workers" ,,"Fewer than 5 Workers","5 to 9 Workers","10 to 19 Workers","20 to 49 Workers","50 to 99 Workers","100 to 249 Workers","250 or More Workers" "All Buildings ................",4657,2376,807,683,487,174,90,39 "Building Floorspace" "(Square Feet)" "1,001 to 5,000 ...............",2348,1567,482,226,66,"Q","Q","N" "5,001 to 10,000 ..............",1110,511,180,249,144,"Q","Q","N" "10,001 to 25,000 .............",708,250,105,146,157,46,"Q","Q"

322

DNA fragment sizing and sorting by laser-induced fluorescence  

DOE Patents [OSTI]

A method is provided for sizing DNA fragments using high speed detection systems, such as flow cytometry to determine unique characteristics of DNA pieces from a sample. In one characterization the DNA piece is fragmented at preselected sites to produce a plurality of DNA fragments. The DNA piece or the resulting DNA fragments are treated with a dye effective to stain stoichiometrically the DNA piece or the DNA fragments. The fluorescence from the dye in the stained fragments is then examined to generate an output functionally related to the number of nucleotides in each one of the DNA fragments. In one embodiment, the intensity of the fluorescence emissions from each fragment is linearly related to the fragment length. The distribution of DNA fragment sizes forms a characterization of the DNA piece for use in forensic and research applications.

Hammond, Mark L. (Angier, NC); Jett, James H. (Los Alamos, NM); Keller, Richard A. (Los Alamos, NM); Marrone, Babetta L. (Los Alamos, NM); Martin, John C. (Los Alamos, NM)

1996-01-01T23:59:59.000Z

323

The use of computed radiography plates to determine light and radiation field coincidence  

SciTech Connect (OSTI)

Purpose: Photo-stimulable phosphor computed radiography (CR) has characteristics that allow the output to be manipulated by both radiation and optical light. The authors have developed a method that uses these characteristics to carry out radiation field and light field coincidence quality assurance on linear accelerators.Methods: CR detectors from Kodak were used outside their cassettes to measure both radiation and light field edges from a Varian linear accelerator. The CR detector was first exposed to a radiation field and then to a slightly smaller light field. The light impinged on the detector's latent image, removing to an extent the portion exposed to the light field. The detector was then digitally scanned. A MATLAB-based algorithm was developed to automatically analyze the images and determine the edges of the light and radiation fields, the vector between the field centers, and the crosshair center. Radiographic film was also used as a control to confirm the radiation field size.Results: Analysis showed a high degree of repeatability with the proposed method. Results between the proposed method and radiographic film showed excellent agreement of the radiation field. The effect of varying monitor units and light exposure time was tested and found to be very small. Radiation and light field sizes were determined with an uncertainty of less than 1 mm, and light and crosshair centers were determined within 0.1 mm.Conclusions: A new method was developed to digitally determine the radiation and light field size using CR photo-stimulable phosphor plates. The method is quick and reproducible, allowing for the streamlined and robust assessment of light and radiation field coincidence, with no observer interpretation needed.

Kerns, James R. [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 and Graduate School of Biomedical Sciences, The University of Texas Health Science Center Houston, Houston, Texas 77030 (United States)] [Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, Texas 77030 and Graduate School of Biomedical Sciences, The University of Texas Health Science Center Houston, Houston, Texas 77030 (United States); Anand, Aman [Department of Radiation Oncology, Mayo Clinic, Scottsdale, Arizona 85259 (United States)] [Department of Radiation Oncology, Mayo Clinic, Scottsdale, Arizona 85259 (United States)

2013-11-15T23:59:59.000Z

324

" Row: Employment Sizes within NAICS Codes;"  

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

4 Consumption Ratios of Fuel, 2006;" 4 Consumption Ratios of Fuel, 2006;" " Level: National Data; " " Row: Employment Sizes within NAICS Codes;" " Column: Energy-Consumption Ratios;" " Unit: Varies." ,,,,"Consumption" ,,,"Consumption","per Dollar" ,,"Consumption","per Dollar","of Value" "NAICS",,"per Employee","of Value Added","of Shipments" "Code(a)","Economic Characteristic(b)","(million Btu)","(thousand Btu)","(thousand Btu)" ,,"Total United States" " 311 - 339","ALL MANUFACTURING INDUSTRIES"

325

Minimum patch size thresholds of reproductive success of songbirds  

E-Print Network [OSTI]

-oak forests ............................................................................. 9 Figure 2 The number of white-eyed vireo pairs that fledged young was linearly related to patch size (r2 = 0.63) ..................................... 20...). ............................................................ 19 Table 3 Arthropod biomass (mg/g of leaves) collected from branch clippings taken in 12 patches of juniper-oak (Juniperus-Quercus) forest in east-central Texas. ............................ 22 1 1 INTRODUCTION It is often...

Butcher, Jerrod Anthony

2009-05-15T23:59:59.000Z

326

Cosmological Tests Using the Angular Size of Galaxy Clusters  

E-Print Network [OSTI]

We use measurements of the galaxy-cluster angular size versus redshift to test and compare the standard model (LCDM) and the R_h=ct Universe. We show that the latter fits the data with a reduced chi^2_dof=0.786 for a Hubble constant H_0= 72.6 (-3.4+3.8) km/s/Mpc, and H_0 is the sole parameter in this model. By comparison, the optimal flat LCDM model, with two free parameters (including Omega_m=0.50 and H_0=73.9 (-9.5+10.6) km/s/Mpc), fits the angular-size data with a reduced chi^2_dof=0.806. On the basis of their chi^2_dof values alone, both models appear to account for the data very well in spite of the fact that the R_h=ct Universe expands at a constant rate, while LCDM does not. However, because of the different number of free parameters in these models, selection tools, such as the Bayes Information Criterion, favour R_h=ct over LCDM with a likelihood of ~86% versus ~14%. These results impact the question of galaxy growth at large redshifts. Previous work suggested an inconsistency with the underlying cosmological model unless elliptical and disk galaxies grew in size by a surprisingly large factor ~6 from z~3 to 0. The fact that both LCDM and R_h=ct fit the cluster-size measurements quite well casts some doubt on the suggestion that the unexpected result with individual galaxies may be due to the use of an incorrect expansion scenario, rather than astrophysical causes, such as mergers and/or selection effects.

Jun-Jie Wei; Xue-Feng Wu; Fulvio Melia

2014-11-20T23:59:59.000Z

327

Distributive analysis of rural land size and price relationships  

E-Print Network [OSTI]

manuscript. :ABLE OF CONTENTS Chapter Page I. IN:RODUCTION The Problem Objectives of the Study 1 2 II. PREVIOUS RESEARCH U. S. Aggregate Studies Texas and Regional Studies 5 6 III. ECONOMIC THEORY AND LAND VALUES IV. HYPOTHESES AND METHODOLOGY... 12 Market Movements Frictional Adjustments Economies of Size 12 1". 13 Factors of Consideration Market Division Methodology Bases Percentages Blocks Groups Appreciation Market Distribution 15 17 18 19 20 20 23 24 The Models...

Rothe, Robert Joseph

2012-06-07T23:59:59.000Z

328

Temperature and Size Lab General Background and Overview  

E-Print Network [OSTI]

of oxygen used per unit time or · V · CO2 , the volume of CO2 production per unit time or M · CO2 the number of mols of CO2 produced per unit time. In this lab we will learn the principles of measurement of compressing lots of difference in size into a small graph: 1. Q · = a(W)b or Log Q · = log a + b * Log W

Prestwich, Ken

329

" Row: Employment Sizes within NAICS Codes;"  

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

3. Consumption Ratios of Fuel, 1998;" 3. Consumption Ratios of Fuel, 1998;" " Level: National Data; " " Row: Employment Sizes within NAICS Codes;" " Column: Energy-Consumption Ratios;" " Unit: Varies." " "," ",,,"Consumption"," " " "," ",,"Consumption","per Dollar" " "," ","Consumption","per Dollar","of Value","RSE" "NAICS",,"per Employee","of Value Added","of Shipments","Row" "Code(a)","Economic Characteristic(b)","(million Btu)","(thousand Btu)","(thousand Btu)","Factors"

330

" Row: Employment Sizes within NAICS Codes;"  

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

4 Consumption Ratios of Fuel, 2002;" 4 Consumption Ratios of Fuel, 2002;" " Level: National Data; " " Row: Employment Sizes within NAICS Codes;" " Column: Energy-Consumption Ratios;" " Unit: Varies." " "," ",,,"Consumption"," " " "," ",,"Consumption","per Dollar" " "," ","Consumption","per Dollar","of Value","RSE" "NAICS",,"per Employee","of Value Added","of Shipments","Row" "Code(a)","Economic Characteristic(b)","(million Btu)","(thousand Btu)","(thousand Btu)","Factors"

331

UNIVERSITY OF ROCHESTER Distribution of Undergraduate Courses by Section Size  

E-Print Network [OSTI]

49 99 199 200+ Audio and Music Engineering 7 14 3 3 0 0 1 0 0 0 Biomedical Engineering 11 54 2 2 - 1 2013 School of Engineering and # Avg. 20- 30- 40- 50- 100- Applied Sciences Sect. Size 1-9 10-19 29 39 - 5 1 - Chemical Engineering 12 45 - 2 3 - 3 4 - - Computer Science 21 40 - 7 3 5 - 5 1 - Electrical

Portman, Douglas

332

Generalized Gravitational Entropy of Interacting Scalar Field and Maxwell Field  

E-Print Network [OSTI]

The generalized gravitational entropy proposed by Lewkowycz and Maldacena in recent is extended to the interacting real scalar field and Maxwell field system. Using the BTZ geometry we first investigate the case of free real scalar field and then show a possible way to calculate the entropy of the interacting scalar field. Next, we investigate the Maxwell field system. We exactly solve the wave equation and calculate the analytic value of the generalized gravitational entropy. We also use the Einstein equation to find the effect of backreaction of the Maxwell field on the area of horizon. The associated modified area law is consistent with the generalized gravitational entropy.

Wung-Hong Huang

2014-11-11T23:59:59.000Z

333

Cube and Sphere Surface Area and Relative Size  

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

Cube and Sphere Surface Area and Relative Size Cube and Sphere Surface Area and Relative Size Name: Andrea Status: student Age: N/A Location: N/A Country: N/A Date: N/A Question: Will a sphere that has the identical surface area as a cube fit inside the cube? Replies: The surface area of a cube is 6L^2 where L is the length of a side. The surface area of a sphere is 4 pi r^2 where r is the radius of the sphere Setting these two terms equal (which we do because the surface areas are equal, [we do not need and exact number, mind you. We just have to know they are equal.]) and doing some algebra we find that the cube has a side 1.414 times as long as the radius of the sphere. BUT WAIT. The radius of the sphere is only half its size (diameter)! To hold the sphere, the cube needs a side of 2r or twice the sphere's radius!! It is only 1.414 times as long so, the sphere will not fit.

334

The stickiness of micrometer-sized water-ice particles  

E-Print Network [OSTI]

Water ice is one of the most abundant materials in dense molecular clouds and in the outer reaches of protoplanetary disks. In contrast to other materials (e.g., silicates) water ice is assumed to be stickier due to its higher specific surface energy, leading to faster or more efficient growth in mutual collisions. However, experiments investigating the stickiness of water ice have been scarce, particularly in the astrophysically relevant micrometer-size region and at low temperatures. In this work, we present an experimental setup to grow aggregates composed of $\\mathrm{\\mu}$m-sized water-ice particles, which we used to measure the sticking and erosion thresholds of the ice particles at different temperatures between $114 \\, \\mathrm{K}$ and $260 \\, \\mathrm{K}$. We show with our experiments that for low temperatures (below $\\sim 210 \\, \\mathrm{K}$), $\\mathrm{\\mu}$m-sized water-ice particles stick below a threshold velocity of $9.6 \\, \\mathrm{m \\, s^{-1}}$, which is approximately ten times higher than the stic...

Gundlach, B

2014-01-01T23:59:59.000Z

335

French Sizing of Medical Devices is not Fit for Purpose  

SciTech Connect (OSTI)

PurposeThe purpose of the study is to quantify the variation in the metric equivalent of French size in a range of medical devices, from various manufacturers, used in interventional radiology.MethodsThe labelling of a range of catheters, introducers, drains, balloons, stents, and endografts was examined. Products were chosen to achieve a broad range of French sizes from several manufacturers. To assess manufacturing accuracy, eight devices were selected for measurement using a laser micrometer. The external diameters of three specimens of each device were measured at centimeter intervals along the length of the device to ensure uniformity.ResultsA total of 200 labels of interventional radiology equipment were scrutinized. The results demonstrate a wide variation in the metric equivalent of French sizing. Labelled products can vary in diameter across the product range by up to 0.79 mm.The devices selected for measurement with the non-contact laser micrometer demonstrate acceptable manufacturing consistency. The external diameter differed by 0.05 mm on average.ConclusionsOur results demonstrate wide variation in the interpretation of the French scale by different manufacturers of medical devices. This has the potential to lead to problems using coaxial systems especially when the products are from different manufacturers. It is recommended that standard labelling should be employed by all manufacturers conveying specific details of the equipment. Given the wide variation in the interpretation of the French scale, our opinion is that this scale either needs to be abandoned or be strictly defined and followed.

Kibriya, Nabil, E-mail: nabskib@yahoo.co.uk; Hall, Rebecca; Powell, Steven [The Royal Liverpool University Hospital, Radiology Department (United Kingdom); How, Thien [University of Liverpool, Faculty of Health and Life Sciences (United Kingdom); McWilliams, Richard G. [The Royal Liverpool University Hospital, Radiology Department (United Kingdom)

2013-08-01T23:59:59.000Z

336

Level: National Data; Row: Employment Sizes within NAICS Codes;  

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

4 Consumption Ratios of Fuel, 2006; 4 Consumption Ratios of Fuel, 2006; Level: National Data; Row: Employment Sizes within NAICS Codes; Column: Energy-Consumption Ratios; Unit: Varies. Consumption Consumption per Dollar Consumption per Dollar of Value NAICS per Employee of Value Added of Shipments Code(a) Economic Characteristic(b) (million Btu) (thousand Btu) (thousand Btu) Total United States 311 - 339 ALL MANUFACTURING INDUSTRIES Employment Size Under 50 562.6 4.7 2.4 50-99 673.1 5.1 2.4 100-249 1,072.8 6.5 3.0 250-499 1,564.3 7.7 3.6 500-999 2,328.9 10.6 4.5 1000 and Over 1,415.5 5.7 2.5 Total 1,278.4 6.9 3.1 311 FOOD Employment Size Under 50 1,266.8 8.3 3.2 50-99 1,587.4 9.3 3.6 100-249 931.9 3.6 1.5 250-499 1,313.1 6.3

337

Quantum fields on closed timelike curves  

SciTech Connect (OSTI)

Recently, there has been much interest in the evolution of quantum particles on closed timelike curves (CTCs). However, such models typically assume pointlike particles with only two degrees of freedom; a very questionable assumption given the relativistic setting of the problem. We show that it is possible to generalize the Deutsch model of CTCs to fields using the equivalent circuit formalism. We give examples for coherent, squeezed, and single-photon states interacting with the CTC via a beamsplitter. The model is then generalized further to account for the smooth transition to normal quantum mechanics as the CTC becomes much smaller than the size of the modes interacting on it. In this limit, we find that the system behaves like a standard quantum-mechanical feedback loop.

Pienaar, J. L.; Myers, C. R.; Ralph, T. C. [School of Mathematics and Physics, The University of Queensland, Brisbane 4072, Queensland (Australia)

2011-12-15T23:59:59.000Z

338

Lattice field theory simulations of graphene  

E-Print Network [OSTI]

We discuss the Monte Carlo method of simulating lattice field theories as a means of studying the low-energy effective theory of graphene. We also report on simulational results obtained using the Metropolis and Hybrid Monte Carlo methods for the chiral condensate, which is the order parameter for the semimetal-insulator transition in graphene, induced by the Coulomb interaction between the massless electronic quasiparticles. The critical coupling and the associated exponents of this transition are determined by means of the logarithmic derivative of the chiral condensate and an equation-of-state analysis. A thorough discussion of finite-size effects is given, along with several tests of our calculational framework. These results strengthen the case for an insulating phase in suspended graphene, and indicate that the semimetal-insulator transition is likely to be of second order, though exhibiting neither classical critical exponents, nor the predicted phenomenon of Miransky scaling.

Joaquín E. Drut; Timo A. Lähde

2009-01-06T23:59:59.000Z

339

Golden Field Office  

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

Department of Energy Department of Energy Golden Field Office 1617 Cole Boulevard Golden, Colorado 80401-3393 FINDING OF NO SIGNIFICANT IMPACT UNIVERSITY OF MAINE'S DEEPWATER OFFSHORE FLOATING WIND TURBINE TESTING AND DEMONSTRATION PROJECT - CASTINE DOE/EA-1792-S1 AGENCY: U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy ACTION: Finding of No Significant Impact (FONSI) SUMMARY: The U.S. Department of Energy (DOE) has completed a Supplemental Environmental Assessment (Supplemental EA) DOE/EA-1792-S1 for the University of Maine's (UMaine) Deepwater Offshore Floating Wind Turbine Testing and Demonstration Project - Castine. DOE prepared the Supplemental EA to evaluate the potential environmental impacts of

340

National High Magnetic Field Laboratory - Visualizing Field Lines...  

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

Now You See It: Visualizing Field Lines Try This At Home The magnetic field is the area around the magnet where the magnetic forces act. Actually, magnets are made up of many, many...

Note: This page contains sample records for the topic "field size mmboe" 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

National High Magnetic Field Laboratory - Drawing Field Lines...  

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

A Portrait of Magnetism: Drawing Field Lines Try This At Home Magnets have two poles; the field lines spread out from the north pole and circle back around to the south pole. In...

342

Sensitivity of storage field performance to geologic and cavern design parameters in salt domes.  

SciTech Connect (OSTI)

A sensitivity study was performed utilizing a three dimensional finite element model to assess allowable cavern field sizes for strategic petroleum reserve salt domes. A potential exists for tensile fracturing and dilatancy damage to salt that can compromise the integrity of a cavern field in situations where high extraction ratios exist. The effects of salt creep rate, depth of salt dome top, dome size, caprock thickness, elastic moduli of caprock and surrounding rock, lateral stress ratio of surrounding rock, cavern size, depth of cavern, and number of caverns are examined numerically. As a result, a correlation table between the parameters and the impact on the performance of storage field was established. In general, slower salt creep rates, deeper depth of salt dome top, larger elastic moduli of caprock and surrounding rock, and a smaller radius of cavern are better for structural performance of the salt dome.

Ehgartner, Brian L. (Sandia National Laboratories, Albuquerque, NM); Park, Byoung Yoon

2009-03-01T23:59:59.000Z

343

Sensitivity of storage field performance to geologic and cavern design parameters in salt domes.  

SciTech Connect (OSTI)

A sensitivity study was performed utilizing a three dimensional finite element model to assess allowable cavern field sizes in strategic petroleum reserve salt domes. A potential exists for tensile fracturing and dilatancy damage to salt that can compromise the integrity of a cavern field in situations where high extraction ratios exist. The effects of salt creep rate, depth of salt dome top, dome size, caprock thickness, elastic moduli of caprock and surrounding rock, lateral stress ratio of surrounding rock, cavern size, depth of cavern, and number of caverns are examined numerically. As a result, a correlation table between the parameters and the impact on the performance of a storage field was established. In general, slower salt creep rates, deeper depth of salt dome top, larger elastic moduli of caprock and surrounding rock, and a smaller radius of cavern are better for structural performance of the salt dome.

Ehgartner, Brian L.; Park, Byoung Yoon; Herrick, Courtney Grant

2010-06-01T23:59:59.000Z

344

Efficient thermal field computation in phase-field models  

Science Journals Connector (OSTI)

We solve the phase-field equations in two dimensions to simulate crystal growth in the low undercooling regime. The novelty is the use of a fast solver for the free space heat equation to compute the thermal field. This solver is based on the efficient ... Keywords: Crystal growth, Dendritic solidification, Diffusion equation, Fast solvers, Integral representation, Phase-field, Unbounded domain

Jing-Rebecca Li; Donna Calhoun; Lucien Brush

2009-12-01T23:59:59.000Z

345

Systems and methods of varying charged particle beam spot size  

DOE Patents [OSTI]

Methods and devices enable shaping of a charged particle beam. A modified dielectric wall accelerator includes a high gradient lens section and a main section. The high gradient lens section can be dynamically adjusted to establish the desired electric fields to minimize undesirable transverse defocusing fields at the entrance to the dielectric wall accelerator. Once a baseline setting with desirable output beam characteristic is established, the output beam can be dynamically modified to vary the output beam characteristics. The output beam can be modified by slightly adjusting the electric fields established across different sections of the modified dielectric wall accelerator. Additional control over the shape of the output beam can be excreted by introducing intentional timing de-synchronization offsets and producing an injected beam that is not fully matched to the entrance of the modified dielectric accelerator.

Chen, Yu-Jiuan

2014-09-02T23:59:59.000Z

346

Athletic Fields and Water Conservation  

E-Print Network [OSTI]

Following an 18-step procedure for performing an irrigation audit will help athletic field managers conserve water while maintaining a pleasing facility for recreational use. To perform the audit correctly, a field manager must determine the answers...

Taylor, Gene R.; White, Richard; Abernathy, Scott; Smith, David

1999-12-10T23:59:59.000Z

347

Golden Field Office Reading Room  

Office of Energy Efficiency and Renewable Energy (EERE)

The Golden Field Office was designated a Department of Energy (DOE) field office in December 1992 to support the development and commercialization of renewable energy and energy-efficient...

348

RESULTS OF FIELD TESTING DOE  

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

of Energy facility located within Naval Petroleum Reserve No. 3 (NPR-3), also known as Teapot Dome Oil Field, about 35 miles north of Casper, Wyoming. Teapot Dome Field, Natrona...

349

Diamond-graphite field emitters  

DOE Patents [OSTI]

A field emission electron emitter comprising an electrode of diamond and a conductive carbon, e.g., graphite, is provided.

Valone, Steven M. (Santa Fe, NM)

1997-01-01T23:59:59.000Z

350

Size effects on the hydrogen storage properties of nanoscaffolded  

Science Journals Connector (OSTI)

The use of Li3BN2H8 complex hydride as a practical hydrogen storage material is limited by its high desorption temperature and poor reversibility. While certain catalysts have been shown to decrease the dehydrogenation temperature, no significant improvement in reversibility has been reported thus far. In this study, we demonstrated that tuning the particle size to the nanometer scale by infiltration into nanoporous carbon scaffolds leads to dramatic improvements in the reversibility of Li3BN2H8. Possible changes in the dehydrogenation path were also observed in the nanoscaffolded hydride.

Hui Wu; Wei Zhou; Ke Wang; Terrence J Udovic; John J Rush; Taner Yildirim; Leonid A Bendersky; Adam F Gross; Sky L Van Atta; John J Vajo; Frederick E Pinkerton; Martin S Meyer

2009-01-01T23:59:59.000Z

351

Size Optimizations for Java C. Scott Ananian and Martin Rinard  

E-Print Network [OSTI]

;Strategy Push hard on all the bits. W X£Y ` ab c£d e£f g hY i h Wb pf q Xb W r s cf X p i Xb e t s cf X p i Xb e u s cf X p i Xb e v w w w aY p p cd x Ananian/LCTES'03 ­ p. 4 #12;How to compress objects ThreeSize Optimizations for Java Programs C. Scott Ananian and Martin Rinard {cananian

Ananian, C. Scott

352

A Few Observations about Mounting Moderately Sized Mirrors  

SciTech Connect (OSTI)

Most of the mirror mounting literature has focused on small (less than 0.1 meters) or large (greater than 1 meter) mirrors. We will examine the theory and practice of mounting moderately sized mirrors (between 0.1 and 1 meter). Two examples will be taken from optical diagnostic systems designed for the National Ignition Facility (NIF). In both cases the mirrors were removable (not bonded in place). One of the examples will be for a mirror with a poor aspect ratio (i.e. diameter to thickness ratio greater than 15:1).

Kaufman, M. I.

2011-09-01T23:59:59.000Z

353

System size and energy dependence of $?$ meson production at RHIC  

E-Print Network [OSTI]

We present a system size and energy dependence of $\\phi$ meson production in Cu+Cu and Au+Au collisions at $\\sqrt{s_{NN}}$=62.4 GeV and 200 GeV measured by the STAR experiment at RHIC. We find that the number of participant scaled $\\phi$ meson yields in heavy ion collisions over that of p+p collisions are larger than 1 and increase with collision energy. We compare the results with those of open-strange particles and discuss the physics implication.

J. H. Chen

2008-04-28T23:59:59.000Z

354

Is the silicate emission feature only influenced by grain size?  

E-Print Network [OSTI]

The flattening of the 10mu silicate emission feature observed in the spectra of T Tauri and Herbig Ae/Be stars is usually interpreted as an indicator of grain growth. We show in this paper that a similar behaviour of the feature shape occurs when the porosity of composite grains varies. The fluffy aggregates, having inclusions of different sizes, were modeled by multi-layered spheres consisting of amorphous carbon, amorphous silicate and vacuum. It is also found that the inclusion of crystalline silicates in composite porous particles can lead to a shift of the known resonances and production of new ones.

N. V. Voshchinnikov; Th. Henning

2008-03-23T23:59:59.000Z

355

Effect of Size Polydispersity on Melting of Charged Colloidal Systems  

E-Print Network [OSTI]

We introduce simple prescriptions of the Yukawa potential to describe the effect of size polydispersity and macroion shielding effect in charged colloidal systems. The solid-liquid phase boundaries were presented with the Lindemann criterion based on molecular dynamics simulations. Compared with the Robbins-Kremer-Grest simulation results, a deviation of melting line is observed at small $\\lambda$, which means large macroion screening length. This deviation of phase boundary is qualitatively consistent with the simulation result of the nonlinear Poisson-Boltzmann equation with full many-body interactions. It is found that this deviation of the solid-liquid phase behaviour is sensitive to the screening parameter.

Yong Chen

2006-03-10T23:59:59.000Z

356

Nanotechnology: An emerging area in the field of dentistry  

Science Journals Connector (OSTI)

AbstractBackground/purpose Nanotechnology is the science of material manipulation at the billionth of a meter or nanometer scale, roughly the size of two or three atoms. Nanotechnology, being an interdisciplinary field, has three main extensively overlapping areas, nanoelectronics, nanomaterials, and nanobiotechnology, and these have applications in healthcare. Materials and methods Nanotechnology is an intensifying area that covers a vast and diverse area of medical and dental applications. Nanotechnology has diverse applications in the field of dendritic polymers, including sophisticated visualization of dental structures, improvement in the physical properties of materials, mimicking the natural processes in tooth development, and in the use of specialized nanomachines called nanorobots to execute regular dental measures. Nanomaterials including nanoparticles, nanospheres, nanorods, nanotubes, nanofibers, dendrimers, and other nanostructures are imperative materials in modern research having a variety of applications in medicine and drug research. Results The unique size of nanomaterials makes them fascinating carriers for dental products. The present review describes the clinical effectiveness of nanotechnology in the field of dentistry. The article also discusses various nanocarriers used in the field of dentistry.

Shweta Jain; Ashutosh Pal Jain; Sourabh Jain; Om Narayan Gupta; Ankur Vaidya

2013-01-01T23:59:59.000Z

357

Low field magnetic resonance imaging  

DOE Patents [OSTI]

A method and system of magnetic resonance imaging does not need a large homogenous field to truncate a gradient field. Spatial information is encoded into the spin magnetization by allowing the magnetization to evolve in a non-truncated gradient field and inducing a set of 180 degree rotations prior to signal acquisition.

Pines, Alexander (Berkeley, CA); Sakellariou, Dimitrios (Billancourt, FR); Meriles, Carlos A. (Fort Lee, NJ); Trabesinger, Andreas H. (London, GB)

2010-07-13T23:59:59.000Z

358

Magnetic-field-dosimetry system  

DOE Patents [OSTI]

A device is provided for measuring the magnetic field dose and peak field exposure. The device includes three Hall-effect sensors all perpendicular to each other, sensing the three dimensional magnetic field and associated electronics for data storage, calculating, retrieving and display.

Lemon, D.K.; Skorpik, J.R.; Eick, J.L.

1981-01-21T23:59:59.000Z

359

Cryptography in Quadratic Function Fields  

Science Journals Connector (OSTI)

We describe several cryptographic schemes in quadratic function fields of odd characteristic. In both the real and the imaginary representation of such a field, we present a Diffie-Hellman-like key exchange protocol as well as a public-key cryptosystem ... Keywords: Diffie-Hellman key exchange protocol, ElGamal signature scheme, discrete logarithm, public key cryptosystem, quadratic function field

R. Scheidler

2001-04-01T23:59:59.000Z

360

Golden Field Office  

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

1617 Cole Boulevard Golden , Colorado 80401-3393 DOE/EA-1791 FINDING OF NO SIGNIFICANT IMPACT UNIVERSITY OF MINNESOTA WIND ENERGY RESEARCH CONSORTIllM PROJECT AGENCY: U.S. Department of Energy, Golden Field Office ACTION : Finding of No Significant Impact (FONSI) SUMMARY: The U. S. Department of Energy (DOE) is proposing to authorize the expenditure of Federal funding by the University of Minnesota to design, permit, and construct a wind turbine research facility I. This funding has been appropriated under the American Recovery and Reinvestment Act of2009. The University would use the funding to install a wind turbine research facility at its University of Minnesota Outreach Research and Education (UMore) Park in Rosemount, Minnesota. The proposed research facility would consist of a 2.5-megawatt-

Note: This page contains sample records for the topic "field size mmboe" 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

Golden Field Office  

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

FINDING OF NO SIGNIFICANT IMPACT FINDING OF NO SIGNIFICANT IMPACT MONARCH WARREN COUNTY WIND TURBINE PROJECT LENOX TOWNSIDP, WARREN COUNTY, IL AGENCY: U.S. Department of Energy (DOE), Golden Field Office ACTION: Finding orNo Significant Impact (FONS!) DOEIEA-JSOO SUMMARY: The U.S. Department of Energy (DOE) provided Federal funding appropriated under the American Reinvestment and Recovery Act 0(2009 to the Illinois Department ofComrnerce and Econom ic Opportunity (DeEO) under the State Energy Program (SEP). DeEO proposes to provide approximately $5 million of its SEP funds to Monarch Wind Power (MWP) for the Monarch Warren County Wind Turbine Project (MWTP). DOE's Proposed Action is to authorize the expenditure of Federal funding under State Energy Program to design, permit, and construct

362

ARM - Field Campaigns  

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

alpacas clouds-anvil german-scene instrumentfield pye-night racoro-inst rhubc-layout snowy-site twpice-ship walter-annemarie alpacas clouds-anvil german-scene instrumentfield pye-night racoro-inst rhubc-layout snowy-site twpice-ship walter-annemarie How Do I Propose a Campaign? First, review the guidelines for submitting proposals. Next, submit a preproposal; a short summary of the proposed campaign. Wait for a response from the Infrastructure Management Board (IMB) and/or ARM Science Board. A full proposal or science plan, may be requested. Decision is made-now what is expected? ARM Climate Research Facility users regularly conduct field campaigns to augment routine data acquisitions and to test and validate new instruments. Announcements 13 Dec 2013 Now accepting proposals for use of an AMF, AAF, or augment observations at one of our fixed sites. Smaller campaigns in FY2014 and FY2015 can also be

363

Chameleon Field Theories  

E-Print Network [OSTI]

Chameleons are light scalar fields with remarkable properties. Through the interplay of self-interactions and coupling to matter, chameleon particles have a mass that depends on the ambient matter density. The manifestation of the fifth force mediated by chameleons therefore depends sensitively on their environment, which makes for a rich phenomenology. In this article, we review two recent results on chameleon phenomenology. The first result a pair of no-go theorems limiting the cosmological impact of chameleons and their generalizations: i) the range of the chameleon force at cosmological density today can be at most ~Mpc; ii) the conformal factor relating Einstein- and Jordan-frame scale factors is essentially constant over the last Hubble time. These theorems imply that chameleons have negligible effect on the linear growth of structure, and cannot account for the observed cosmic acceleration except as some form of dark energy. The second result pertains to the quantum stability of chameleon theories. We ...

Khoury, Justin

2013-01-01T23:59:59.000Z

364

Golden Field Office  

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

80401 -3393 DOEIEA-1818 80401 -3393 DOEIEA-1818 FINDING OF NO SIGNIFICANT IMPACT PETTISVILLE WIND ENERGY PROJECT AGENCY: U.S . Department of Energy, Golden Field Office ACTION: Finding of No Significant Impact (FONSI) SUMMARY: The U.S. Department of Energy (DOE) provided Federal funding to the Ohio Department of Development (0000) under the State Energy Program (SEP). 0000 proposes to provide $1 ,225 ,000 of its SEP funds to the Pettisvil Ie Local Schools (Pettisville) for the Pettisville Local Schools Wind Energy Project (Wind Energy Project). DOE' s Proposed Action is to authorize the expenditure of Federal funding under State Energy Program to design, permit, and construct the Pettisville Wind Energy Project, a 750-kilowatt wind turbine at the Pettisville Pre-Kindergarten through Twelfth Grade School located at

365

Reciprocal Relations, Bounds and Size Effects for Composites  

E-Print Network [OSTI]

geometry but with an electrical contact resistance at phase interfaces. A field relationship linking.2) and (2.3). On the otherhand when there is an electrical contact resistance between phases, the electric in various physical situations. Electrical contact resistance often appears due to the presence of a thin

366

The evolutionary consequences of oxygenic photosynthesis: a body size perspective  

E-Print Network [OSTI]

123 Photosynth Res DOI 10.1007/s11120-010-9593-1 #12;reduced photorespiration at lower O2:CO2. Field Mexico, Albuquerque, NM 87131, USA M. Kowalewski Department of Geosciences, Virginia Polytechnic transport limits the thickness or volume-to-surface area ratio--rather than mass or volume

Smith, Felisa A.

367

Field Operations Organization | U.S. DOE Office of Science (SC)  

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

Field Operations Organization Field Operations Organization Deputy Director for Field Operations Deputy Director Home Mission & Functions Deputy Director Biography Organization Organization Chart .pdf file (77KB) Field Offices Laboratory Policy and Evaluation (LPE) Safety, Security and Infrastructure (SSI) Oversight Operations Improvement Committee Contact Information Deputy Director for Field Operations U.S. Department of Energy SC-3/Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5434 F: (202) 586-4120 E: sc.science@science.doe.gov Field Operations Organization Print Text Size: A A A RSS Feeds FeedbackShare Page Field Operations is led by Deputy Director Joseph McBrearty and consists of three major elements - Site Offices, a Support Center, and Headquarters

368

Compressor Selection and Equipment Sizing for Cold Climate Heat Pumps  

SciTech Connect (OSTI)

In order to limit heating capacity degradation at -25 C (-13 F) ambient to 25%, compared to the nominal rating point capacity at 8.3 C (47 F), an extensive array of design and sizing options were investigated, based on fundamental equipment system modeling and building energy simulation. Sixteen equipment design options were evaluated in one commercial building and one residential building, respectively in seven cities. The energy simulation results were compared to three baseline cases: 100% electric resistance heating, a 9.6 HSPF single-speed heat pump unit, and 90% AFUE gas heating system. The general recommendation is that variable-speed compressors and tandem compressors, sized such that their rated heating capacity at a low speed matching the building design cooling load, are able to achieve the capacity goal at low ambient temperatures by over-speeding, for example, a home with a 3.0 ton design cooling load, a tandem heat pump could meet this cooling load running a single compressor, while running both compressors to meet heating load at low ambient temperatures in a cold climate. Energy savings and electric resistance heat reductions vary with building types, energy codes and climate zones. Oversizing a heat pump can result in larger energy saving in a less energy efficient building and colder regions due to reducing electric resistance heating. However, in a more energy-efficient building or for buildings in warmer climates, one has to consider balance between reduction of resistance heat and addition of cyclic loss.

Shen, Bo [ORNL] [ORNL; Abdelaziz, Omar [ORNL] [ORNL; Rice, C Keith [ORNL] [ORNL

2014-01-01T23:59:59.000Z

369

Cosmological Tests Using the Angular Size of Galaxy Clusters  

E-Print Network [OSTI]

We use measurements of the galaxy-cluster angular size versus redshift to test and compare the standard model (LCDM) and the R_h=ct Universe. We show that the latter fits the data with a reduced chi^2_dof=0.786 for a Hubble constant H_0= 72.6 (-3.4+3.8) km/s/Mpc, and H_0 is the sole parameter in this model. By comparison, the optimal flat LCDM model, with two free parameters (including Omega_m=0.50 and H_0=73.9 (-9.5+10.6) km/s/Mpc), fits the angular-size data with a reduced chi^2_dof=0.806. On the basis of their chi^2_dof values alone, both models appear to account for the data very well in spite of the fact that the R_h=ct Universe expands at a constant rate, while LCDM does not. However, because of the different number of free parameters in these models, selection tools, such as the Bayes Information Criterion, favour R_h=ct over LCDM with a likelihood of ~86% versus ~14%. These results impact the question of galaxy growth at large redshifts. Previous work suggested an inconsistency with the underlying cos...

Wei, Jun-Jie; Melia, Fulvio

2014-01-01T23:59:59.000Z

370

NSTX High Field Side Gas Fueling System  

SciTech Connect (OSTI)

Fueling National Spherical Torus Experiment (NSTX) plasmas with gas injected from the high field side (HFS) has produced earlier, more reliable transitions to the H-mode, longer H-mode durations, higher toroidal rotation, and higher edge electron temperature compared with similar discharges using the low field side (LFS) gas fueling injectors. The HFS gas fueling system consists of a Center Stack midplane injector, and an injector at the inner, upper corner of the Center Stack. The challenging design and installation constraints for the HFS gas system involved placing the control components as close as possible to the machine-vacuum interface, devising a special feed-through flange, traversing through vessel regions whose temperatures during bake-out range from 150 to 350 degrees Centigrade, adapting the gas transport tubing size and route to the small instrumentation wire channels behind the existing graphite plasma facing component tiles on the Center Stack, and providing output orifices shielded from excessive plasma power depositions while concentrating the output flow to facilitate fast camera viewing and analysis. Design, recent performance, and future upgrades will be presented.

H.W. Kugel; M. Anderson; G. Barnes; M. Bell; W. Blanchard; L. Dudek; D. Gates; R. Gernhardt; R. Maingi; D. Mueller; T. Provost; R. Raman; V. Soukhanovskii; J. Winston

2003-10-09T23:59:59.000Z

371

POLAR FIELD REVERSAL OBSERVATIONS WITH HINODE  

SciTech Connect (OSTI)

We have been monitoring yearly variation in the Sun's polar magnetic fields with the Solar Optical Telescope aboard Hinode to record their evolution and expected reversal near the solar maximum. All magnetic patches in the magnetic flux maps are automatically identified to obtain the number density and magnetic flux density as a function of the total magnetic flux per patch. The detected magnetic flux per patch ranges over four orders of magnitude (10{sup 15}-10{sup 20} Mx). The higher end of the magnetic flux in the polar regions is about one order of magnitude larger than that of the quiet Sun, and nearly that of pores. Almost all large patches ({>=}10{sup 18} Mx) have the same polarity, while smaller patches have a fair balance of both polarities. The polarity of the polar region as a whole is consequently determined only by the large magnetic concentrations. A clear decrease in the net flux of the polar region is detected in the slow rising phase of the current solar cycle. The decrease is more rapid in the north polar region than in the south. The decrease in the net flux is caused by a decrease in the number and size of the large flux concentrations as well as the appearance of patches with opposite polarity at lower latitudes. In contrast, we do not see temporal change in the magnetic flux associated with the smaller patches (<10{sup 18} Mx) and that of the horizontal magnetic fields during the years 2008-2012.

Shiota, D. [Advanced Science Institute, RIKEN (Institute of Physics and Chemical Research), Wako, Saitama 351-0198 (Japan); Tsuneta, S.; Shimojo, M.; Orozco Suarez, D.; Ishikawa, R. [National Astronomical Observatory of Japan (NAOJ), Mitaka, Tokyo 181-8588 (Japan); Sako, N., E-mail: shiota@riken.jp [Department of Astronomical Science, The Graduate University for Advanced Studies, Mitaka, Tokyo 181-8588 (Japan)

2012-07-10T23:59:59.000Z

372

Automated particulate sampler field test model operations guide  

SciTech Connect (OSTI)

The Automated Particulate Sampler Field Test Model Operations Guide is a collection of documents which provides a complete picture of the Automated Particulate Sampler (APS) and the Field Test in which it was evaluated. The Pacific Northwest National Laboratory (PNNL) Automated Particulate Sampler was developed for the purpose of radionuclide particulate monitoring for use under the Comprehensive Test Ban Treaty (CTBT). Its design was directed by anticipated requirements of small size, low power consumption, low noise level, fully automatic operation, and most predominantly the sensitivity requirements of the Conference on Disarmament Working Paper 224 (CDWP224). This guide is intended to serve as both a reference document for the APS and to provide detailed instructions on how to operate the sampler. This document provides a complete description of the APS Field Test Model and all the activity related to its evaluation and progression.

Bowyer, S.M.; Miley, H.S.

1996-10-01T23:59:59.000Z

373

Chiral-field microwave antennas (Chiral microwave near fields for far-field radiation)  

E-Print Network [OSTI]

In a single-element structure we obtain a radiation pattern with a squint due to chiral microwave near fields originated from a magnetostatic-mode ferrite disk. At the magnetostatic resonances, one has strong subwavelength localization of energy of microwave radiation. Magnetostatic oscillations in a thin ferrite disk are characterized by unique topological properties: the Poynting-vector vortices and the field helicity. The chiral-topology near fields allow obtaining unique phase structure distribution for far-field microwave radiation.

Kamenetskii, E O; Shavit, R

2015-01-01T23:59:59.000Z

374

Polarization of the vacuum of a quantized scalar field by an impenetrable magnetic vortex of finite thickness  

E-Print Network [OSTI]

We consider the effect of the magnetic field background in the form of a tube of the finite transverse size on the vacuum of the quantized charged massive scalar field which is subject to the Dirichlet boundary condition at the tube. It is shown that, if the Compton wavelength associated with the scalar field exceeds considerably the transverse size of the tube, then the vacuum energy which is finite and periodic in the value of the magnetic flux enclosed in the tube is induced on a plane transverse to the tube. Some consequences for generic features of the vacuum polarization in the cosmic-string background are discussed.

V. M. Gorkavenko; Yu. A. Sitenko; O. B. Stepanov

2009-11-15T23:59:59.000Z

375

Radial electric fields from larmor radius effects in the field-reversed theta pinch  

SciTech Connect (OSTI)

The generation of radial electric field from the different Larmor radii between the diffusing ions and electrons in Field-Reversed Theta Pinch (FR theta P) has been evaluated by developing a new computer code, FLR. The code treats the background electrons at point particles, while for large-orbit ions the effects of finite Larmor radius are incorporated into an accurate density formulation. This is necessary since in a small device whose size is comparable to an ion gyroradius (e.g., FR theta P) most ions will contribute to the density over a fairly large region of the plasma. The actual ion density at any point in the plasma represents a time-averaged contribution from all particles whose gyro-orbits pass through that point. The FLR code has predicted the electric field strengths between 10/sup 3/ and 10/sup 4/ volts/cm, which is in good agreement with the experimental values of FRX-A measurements which correspond roughly to the order of 10/sup 3/ volts/cm.

Hu, Y.

1980-01-01T23:59:59.000Z

376

Positron acceleration by plasma wake fields driven by a hollow electron beam  

E-Print Network [OSTI]

A scheme of wake field generation for positron acceleration using hollow or donut shaped electron driver beams is studied. An annular shaped, electron free region forms around a hollow driver beam creating a favorable region (longitudinal field is accelerating and transverse field is focusing and radially linear) for positron acceleration. Accelerating gradients of the order of 10 GV/m are produced by a hollow electron beam driver with FACET like parameters. The peak accelerating field increases linearly with the total charge in the beam driver while the axial size of the favorable region ($\\sim$ one plasma wavelength) remains approximately fixed. The radial size drops with the total charge but remains large enough for the placement of a witness positron beam. We simulate an efficient acceleration of a 23 GeV positron beam to 35.4 GeV with a maximum energy spread of 0.4\\% and very small emittance over a plasma length of 140 cm.

Jain, Neeraj; Palastro, J P

2014-01-01T23:59:59.000Z

377

Whistler Modes with Wave Magnetic Fields Exceeding the Ambient Field  

Science Journals Connector (OSTI)

Whistler-mode wave packets with fields exceeding the ambient dc magnetic field have been excited in a large, high electron-beta plasma. The waves are induced with a loop antenna with dipole moment either along or opposite to the dc field. In the latter case the excited wave packets have the topology of a spheromak but are propagating in the whistler mode along and opposite to the dc magnetic field. Field-reversed configurations with net zero helicity have also been produced. The electron magnetohydrodynamics fields are force free, have wave energy density exceeding the particle energy density, and propagate stably at subelectron thermal velocities through a nearly uniform stationary ion density background.

R. L. Stenzel; J. M. Urrutia; K. D. Strohmaier

2006-03-10T23:59:59.000Z

378

Field Evaluation of Windows  

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

Evaluation of Windows Evaluation of Windows Last Updated: 10/20/2009 Various tools can be used to evaluate windows in the field. Unless a new window still has the NFRC label attached to it, it is nearly impossible to determine by sight what the thermal and optical performance of a window is. These tools can provide information, such as low-e coating, gap width and gas fill, that can be used to approximate the performance of a window. Solar gain and Low-e detector This device can be used to determine if a low-e coating is present in the window, what type of coating it is, and where it is located. The type of low-e coating will indicate the amount of solar gain that is admitted through the coating. Readings can be "low", "medium" or "high". The device will also indicate on which glass surface the low-e coating is in relation to the position of the device. Limitations: Only works on glass of 1/8" (3 mm) or thinner. Cost: around $350 from EDTM.com

379

The dual-mirror Small Size Telescope for the Cherenkov Telescope Array  

E-Print Network [OSTI]

In this paper, the development of the dual mirror Small Size Telescopes (SST) for the Cherenkov Telescope Array (CTA) is reviewed. Up to 70 SST, with a primary mirror diameter of 4 m, will be produced and installed at the CTA southern site. These will allow investigation of the gamma-ray sky at the highest energies accessible to CTA, in the range from about 1 TeV to 300 TeV. The telescope presented in this contribution is characterized by two major innovations: the use of a dual mirror Schwarzschild-Couder configuration and of an innovative camera using as sensors either multi-anode photomultipliers (MAPM) or silicon photomultipliers (SiPM). The reduced plate-scale of the telescope, achieved with the dual-mirror optics, allows the camera to be compact (40 cm in diameter), and low-cost. The camera, which has about 2000 pixels of size 6x6 mm^2, covers a field of view of 10{\\deg}. The dual mirror telescopes and their cameras are being developed by three consortia, ASTRI (Astrofisica con Specchi a Tecnologia Replicante Italiana, Italy/INAF), GATE (Gamma-ray Telescope Elements, France/Paris Observ.) and CHEC (Compact High Energy Camera, universities in UK, US and Japan) which are merging their efforts in order to finalize an end-to-end design that will be constructed for CTA. A number of prototype structures and cameras are being developed in order to investigate various alternative designs. In this contribution, these designs are presented, along with the technological solutions under study.

G. Pareschi; G. Agnetta; L. A. Antonelli; D. Bastieri; G. Bellassai; M. Belluso; C. Bigongiari; S. Billotta; B. Biondo; G. Bonanno; G. Bonnoli; P. Bruno; A. Bulgarelli; R. Canestrari; M. Capalbi; P. Caraveo; A. Carosi; E. Cascone; O. Catalano; M. Cereda; P. Conconi; V. Conforti; G. Cusumano; V. De Caprio; A. De Luca; A. Di Paola; F. Di Pierro; D. Fantinel; M. Fiorini; D. Fugazza; D. Gardiol; M. Ghigo; F. Gianotti; S. Giarrusso; E. Giro; A. Grillo; D. Impiombato; S. Incorvaia; A. La Barbera; N. La Palombara; V. La Parola; G. La Rosa; L. Lessio; G. Leto; S. Lombardi; F. Lucarelli; M. C. Maccarone; G. Malaguti; G. Malaspina; V. Mangano; D. Marano; E. Martinetti; R. Millul; T. Mineo; A. MistÒ; C. Morello; G. Morlino; M. R. Panzera; G. Rodeghiero; P. Romano; F. Russo; B. Sacco; N. Sartore; J. Schwarz; A. Segreto; G. Sironi; G. Sottile; A. Stamerra; E. Strazzeri; L. Stringhetti; G. Tagliaferri; V. Testa; M. C. Timpanaro; G. Toso; G. Tosti; M. Trifoglio; P. Vallania; S. Vercellone; V. Zitelli; For The Astri Collaboration; J. P. Amans; C. Boisson; C. Costille; J. L. Dournaux; D. Dumas; G. Fasola; O. Hervet; J. M. Huet; P. Laporte; C. Rulten; H. Sol; A. Zech; For The Gate Collaboration; R. White; J. Hinton; D. Ross; J. Sykes; S. Ohm; J. Schmoll; P. Chadwick; T. Greenshaw; M. Daniel; G. Cotter; G. S. Varner; S. Funk; J. Vandenbroucke; L. Sapozhnikov; J. Buckley; P. Moore; D. Williams; S. Markoff; J. Vink; D. Berge; N. Hidaka; A. Okumura; H. Tajima; For The Chec Collaboration; For The Cta Consortium

2013-07-18T23:59:59.000Z

380

Tuning Pore Size to Enhance the Capacitance of Supercapacitors | U.S. DOE  

Office of Science (SC) Website

Tuning Pore Size to Enhance the Tuning Pore Size to Enhance the Capacitance of Supercapacitors Energy Frontier Research Centers (EFRCs) EFRCs Home Centers Research Science Highlights Highlight Archives News & Events Publications Contact BES Home 04.27.12 Tuning Pore Size to Enhance the Capacitance of Supercapacitors Print Text Size: A A A RSS Feeds FeedbackShare Page Scientific Achievement Simulations of nanoporous super-capacitors confirm and help to understand the anomalous increase in capacitance observed in experiment when the pore size is close to the ion size (0.7 nm). Significance and Impact The results point to a novel method for tuning supercapacitors by manipulating pore size and/or electrolyte ion size. Research Details Capacitance maxima and oscillation at pore sizes larger than the ion

Note: This page contains sample records for the topic "field size mmboe" 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

Management cell size determination for site-specific crop management  

E-Print Network [OSTI]

Laura. Her patience and encouragement have kept me going and made this road worth traveling. I look forward to spending the rest of my life with her, with Christ as our guide. ACKNOWLEDGEMENT S I thank Ford for the tractor, Dickey-john Corporation... Tractor Components Description Communication Link Implement Components Description Planter Fertilizer applicator Test Field and Procedures Results and Discussion . Tractor Controller Module Application System Response Application System Accuracy...

Neuhaus, Paul Eric

2012-06-07T23:59:59.000Z

382

Magnetic pattern at supergranulation scale: the Void Size Distribution  

E-Print Network [OSTI]

The large-scale magnetic pattern of the quiet sun is dominated by the magnetic network. This network, created by photospheric magnetic fields swept into convective downflows, delineates the boundaries of large scale cells of overturning plasma and exhibits voids in magnetic organization. Such voids include internetwork fields, a mixed-polarity sparse field that populate the inner part of network cells. To single out voids and to quantify their intrinsic pattern a fast circle packing based algorithm is applied to 511 SOHO/MDI high resolution magnetograms acquired during the outstanding solar activity minimum between 23 and 24 cycles. The computed Void Distribution Function shows a quasi-exponential decay behavior in the range 10-60 Mm. The lack of distinct flow scales in such a range corroborates the hypothesis of multi-scale motion flows at the solar surface. In addition to the quasi-exponential decay we have found that the voids reveal departure from a simple exponential decay around 35 Mm.

Berrilli, Francesco; Del Moro, Dario

2014-01-01T23:59:59.000Z

383

Size-Related Behavior of Anatase Nanocrystals under Extreme Pressure |  

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

Boron-Based Compounds Trick a Biomedical Protein Boron-Based Compounds Trick a Biomedical Protein A Targeted Cancer Treatment using Nanomaterials When Roots Follow the Path of Least Resistance Perfecting Catalytic Arrays A Stable Open Framework with Wide Open Spaces Science Highlights Archives: 2013 | 2012 | 2011 | 2010 2009 | 2008 | 2007 | 2006 2005 | 2004 | 2003 | 2002 2001 | 2000 | 1998 | Subscribe to APS Science Highlights rss feed Size-Related Behavior of Anatase Nanocrystals under Extreme Pressure SEPTEMBER 27, 2009 Bookmark and Share Left: A polyhedral representation of the anatase TiO2 crystal structure. Right: Simplified relative cell parameter plots. The smoothly varying curves (+ diamond symbols) represent gold that was used as the pressure standard. The circles represent the 6-nm anatase. From the near vacuum of outer space to the intense pressure at a planet's

384

HVAC Right-Sizing Part 1: Calculating Loads  

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

Building America Building America Presented by: Mike Gestwick - National Renewable Energy Laboratory Arlan Burdick, Anthony Grisolia - IBACOS, a Building America Research Team HVAC Right-Sizing Part 1: Calculating Loads Thursday, April 28 11:00 a.m. - 12:00 p.m. Eastern Building Technologies Program Mike Gestwick michael.gestwick@nrel.gov Building America: Introduction April 28, 2011 Introduction to Building America * Reduce energy use in new and existing residential buildings * Promote building science and systems engineering / integration approach * "Do no harm": Ensure safety, health and durability are maintained or improved * Accelerate adoption of high performance technologies www.buildingamerica.gov 15 Industry Research Teams Habitat Cost Effective Energy Retrofit Program

385

Assess Potential Agency Size Changes that Impact Greenhouse Gas Emissions |  

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

Emissions Emissions Assess Potential Agency Size Changes that Impact Greenhouse Gas Emissions October 7, 2013 - 10:12am Addthis Federal agencies should establish planned changes in operations that could have a substantial impact on emissions for each greenhouse gas (GHG) emission source: Buildings Vehicles and mobile equipment Business travel Employee commuting. Such changes could represent either an additional significant hurdle to overcome or a significant reduction in the effort required to drive emissions down-in the absence of any direct GHG mitigation reduction strategies. This will help each organization establish its "business as usual" emission profile in 2020, the year agencies are expected to meet their Scope 1 and 2 and Scope 3 GHG emission-reduction goals.

386

Hadronic sizes and observables in high-energy scattering  

E-Print Network [OSTI]

The functional dependence of the high-energy observables of total cross section and slope parameter on the sizes of the colliding hadrons predicted by the model of the stochastic vacuum and the corresponding relations used in the geometric model of Povh and H\\"ufner are confronted with the experimental data. The existence of a universal term in the expression for the slope, due purely to vacuum effects, independent of the energy and of the particular hadronic system, is investigated. Accounting for the two independent correlation functions of the QCD vacuum, we improve the simple and consistent description given by the model of the stochastic vacuum to the high-energy pp and pbar-p data, with a new determination of parameters of non-perturbative QCD. The increase of the hadronic radii with the energy accounts for the energy dependence of the observables.

Erasmo Ferreira; Flávio Pereira

1997-05-09T23:59:59.000Z

387

Cellulose hydrogels prepared from micron-sized bamboo cellulose fibers  

Science Journals Connector (OSTI)

Abstract We demonstrated for the first time that dimensionally stable hydrogels could be obtained from bamboo pulp fibers through dialysis against distilled water followed by a short time of ultrasonic treatment. Micron-sized short fibers rather than cellulose nanofibrils constituted the majority of fibers in the hydrogels. During the pulping process with HNO3 and KClO3, carboxylic groups could be introduced to cellulose due to the mild oxidation of hydroxyl groups. When presented in aqueous NaOH, the carboxylic groups could be converted into their sodium salt form. The subsequent dialysis treatment against water made the negatively charged COO? groups extensively exposed. The negatively charged cellulose fibers could induce considerable electrostatic repulsion between them, which was discovered to govern the formation of hydrogels. In addition, it was revealed that homogeneous hydrogels could be formed when the pH was at 7, 9 and 11. However, when salt was added, no dimensionally stable hydrogel was obtained.

Xiaofang Zhang; Yaru Wang; Canhui Lu; Wei Zhang

2014-01-01T23:59:59.000Z

388

Size-exclusion chromatography system for macromolecular interaction analysis  

DOE Patents [OSTI]

A low pressure, microcomputer controlled system employing high performance liquid chromatography (HPLC) allows for precise analysis of the interaction of two reversibly associating macromolecules such as proteins. Since a macromolecular complex migrates faster than its components during size-exclusion chromatography, the difference between the elution profile of a mixture of two macromolecules and the summation of the elution profiles of the two components provides a quantifiable indication of the degree of molecular interaction. This delta profile is used to qualitatively reveal the presence or absence of significant interaction or to rank the relative degree of interaction in comparing samples and, in combination with a computer simulation, is further used to quantify the magnitude of the interaction in an arrangement wherein a microcomputer is coupled to analytical instrumentation in a novel manner.

Stevens, Fred J. (Downers Grove, IL)

1988-01-01T23:59:59.000Z

389

Slant visual range from drop-size distribution  

E-Print Network [OSTI]

. 1796 x 10 -5 6. 4781 x 10 -5 6. 8817 x 10 7. 4708 x 10 -5 6. 4Z3Z x 10 3. 4338 x 10 -5 l. 8538 x 10 9. 1Z32 x 10 5. 1436 x 10 3. 1019 x 10 3. 3120 x 10 -6 3. 6597 x 10 6. Z636 x 10 4. 2730 x 10 3. 8357 x 10 1 4. OZ10 x 10 1 4. Z715 x 10...'laj or Subject: Mete orol oqy SLANT VISUAL RANGE FROM DROP-SIZE DISTRIBUTION A Thesis by EDWIN STANLEY ARRANCE Approved as to style and content by: Dr. Vance E. Moyer; (Chairman of Committee) Dr. Geor L. Huebner, Jr. (Member) Dr. Glen N. Williams...

Arrance, Edwin Stanley

2012-06-07T23:59:59.000Z

390

Strengthening of metallic alloys with nanometer-size oxide dispersions  

DOE Patents [OSTI]

Austenitic stainless steels and nickel-base alloys containing, by wt. %, 0.1 to 3.0% V, 0.01 to 0.08% C, 0.01 to 0.5% N, 0.05% max. each of Al and Ti, and 0.005 to 0.10% O, are strengthened and ductility retained by atomization of a metal melt under cover of an inert gas with added oxygen to form approximately 8 nanometer-size hollow oxides within the alloy grains and, when the alloy is aged, strengthened by precipitation of carbides and nitrides nucleated by the hollow oxides. Added strengthening is achieved by nitrogen solid solution strengthening and by the effect of solid oxides precipitated along and pinning grain boundaries to provide temperature-stabilization and refinement of the alloy grains.

Flinn, John E. (Idaho Falls, ID); Kelly, Thomas F. (Madison, WI)

1999-01-01T23:59:59.000Z

391

Strengthening of metallic alloys with nanometer-size oxide dispersions  

DOE Patents [OSTI]

Austenitic stainless steels and nickel-base alloys containing, by wt. %, 0.1 to 3.0% V, 0.01 to 0.08% C, 0.01 to 0.5% N, 0.05% max. each of Al and Ti, and 0.005 to 0.10% O, are strengthened and ductility retained by atomization of a metal melt under cover of an inert gas with added oxygen to form approximately 8 nanometer-size hollow oxides within the alloy grains and, when the alloy is aged, strengthened by precipitation of carbides and nitrides nucleated by the hollow oxides. Added strengthening is achieved by nitrogen solid solution strengthening and by the effect of solid oxides precipitated along and pinning grain boundaries to provide temperature-stabilization and refinement of the alloy grains. 20 figs.

Flinn, J.E.; Kelly, T.F.

1999-06-01T23:59:59.000Z

392

Finite-size scaling in unbiased translocation dynamics  

E-Print Network [OSTI]

Finite-size scaling arguments naturally lead us to introduce a coordinate-dependent diffusion coefficient in a Fokker-Planck description of the late stage dynamics of unbiased polymer translocation through a membrane pore. The solution for the probability density function of the chemical coordinate matches the initial-stage subdiffusive regime and takes into account the equilibrium entropic drive. Precise scaling relations connect the subdiffusion exponent to the divergence with the polymer length of the translocation time, and also to the singularity of the probability density function at the absorbing boundaries. Quantitative comparisons with numerical simulation data in $d=2$ strongly support the validity of the model and of the predicted scalings.

Giovanni Brandani; Fulvio Baldovin; Enzo Orlandini; Attilio L. Stella

2014-02-17T23:59:59.000Z

393

Shape-induced phenomena in finite-size antiferromagnets  

Science Journals Connector (OSTI)

It is common knowledge that the direction of the easy axis in a finite-size ferromagnetic sample is controlled by its shape. In the present paper we show that a similar phenomenon should be observed in compensated antiferromagnets with strong magnetoelastic coupling. The destressing energy which originates from the long-range magnetoelastic forces is analogous to the demagnetization energy in ferromagnetic materials and is responsible for the formation of the equilibrium domain structure and the anisotropy of macroscopic magnetic properties. In particular, the crystal shape may be a source of additional uniaxial magnetic anisotropy which removes the degeneracy of the antiferromagnetic vector or the artificial fourth-order anisotropy in the case of a square cross-section sample. In the special case of antiferromagnetic nanopillars, shape-induced anisotropy can be substantially enhanced due to lattice mismatch with the substrate. These effects can be detected by magnetic rotational torque and antiferromagnetic resonance measurements.

Helen V. Gomonay and Vadim M. Loktev

2007-05-25T23:59:59.000Z

394

System Size Dependence of Particle Production at the SPS  

E-Print Network [OSTI]

Recent results on the system size dependence of net-baryon and hyperon production as measured at the CERN SPS are discussed. The observed Npart dependences of yields, but also of dynamical properties, such as average transverse momenta, can be described in the context of the core corona approach. Other observables, such as antiproton yields and net-protons at forward rapidities, do not follow the predictions of this model. Possible implications for a search for a critical point in the QCD phase diagram are discussed. Event-by-event fluctuations of the relative core to corona source contributions might influence fluctuation observables (e.g. multiplicity fluctuations). The magnitude of this effect is investigated.

C. Blume

2010-12-22T23:59:59.000Z

395

Size and load dependence of nanoscale electric contact resistance  

Science Journals Connector (OSTI)

Abstract Nanoscale electrical resistance between a platinum-coated atomic force microscope tip and highly oriented pyrolytic graphite surface is measured as a function of normal load and tip radius. These measurements are complemented by molecular dynamics simulations that relate load and radius to contact area. Simulation-predicted contact area and experimentally-measured resistance are used to calculate contact resistivity. The results show that the effect of load on resistance can be captured by the real contact area, while tip size, although in part captured by area, affects contact resistivity itself, potentially through interface distance. Our study provides new insight into the effect of load and geometry on nanoscale electric contact and, more significantly, highlights the role of atomic-scale contact features in determining contact resistance.

Zhijiang Ye; Hyeongjoo Moon; Min Hwan Lee; Ashlie Martini

2014-01-01T23:59:59.000Z

396

Can Minor Merging Account for the Size Growth of Quiescent Galaxies? New Results from the CANDELS Survey  

E-Print Network [OSTI]

The presence of extremely compact galaxies at z~2 and their subsequent growth in physical size has been the cause of much puzzlement. We revisit the question using deep WFC3/IR data to probe the rest-frame optical structure of 935 host galaxies selected with 0.4 10^10.7 Msol using optical and near-infrared photometry in the UKIRT Ultra Deep Survey and GOODS-South fields of the CANDELS survey. At each redshift, the most compact sources are those with little or no star formation, and we find that the mean size of these systems grows by a factor of 3.5 +- 0.3 over this redshift interval. The new data are sufficiently deep to enable us to identify companions to these hosts whose stellar masses are ten times smaller, while still yielding suitably accurate photometric redshifts to define a likely physical association. By searching for faint companions around 404 quiescent hosts within a projected physical annulus 10 0.1 may explain most of the size evolution observed at z >~ 1 if a relatively short merger timescal...

Newman, Andrew B; Bundy, Kevin; Treu, Tommaso

2011-01-01T23:59:59.000Z

397

Field Sampling | Open Energy Information  

Open Energy Info (EERE)

form form View source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit with form History Facebook icon Twitter icon » Field Sampling Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Field Sampling Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Field Sampling Parent Exploration Technique: Field Techniques Information Provided by Technique Lithology: Rock samples are used to define lithology. Field and lab analyses can be used to measure the chemical and isotopic constituents of rock samples. Stratigraphic/Structural: Can reveal relatively high permeability zones. Provides information about the time and environment which formed a particular geologic unit. Microscopic rock textures can be used to estimate the history of stress and strain, and/or faulting.

398

Steam Field | Open Energy Information  

Open Energy Info (EERE)

Field Field Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Sanyal Temperature Classification: Steam Field Dictionary.png Steam Field: No definition has been provided for this term. Add a Definition Sanyal Temp Classification This temperature scheme was developed by Sanyal in 2005 at the request of DOE and GEA, as reported in Classification of Geothermal Systems: A Possible Scheme. Extremely Low Temperature Very Low Temperature Low Temperature Moderate Temperature High Temperature Ultra High Temperature Steam Field Steam field reservoirs are special cases where the fluid is predominantly found in a gas phase between 230°C to 240°C. "This special class of resource needs to be recognized, its uniqueness being the remarkably consistent initial temperature and pressure

399

Pair production in inhomogeneous fields  

SciTech Connect (OSTI)

We employ the recently developed worldline numerics, which combines string-inspired field theory methods with Monte Carlo techniques, to develop an algorithm for the computation of pair-production rates in scalar QED for inhomogeneous background fields. We test the algorithm with the classic Sauter potential, for which we compute the local production rate for the first time. Furthermore, we study the production rate for a superposition of a constant E field and a spatially oscillating field for various oscillation frequencies. Our results reveal that the approximation by a local derivative expansion already fails for frequencies small compared to the electron-mass scale, whereas for strongly oscillating fields a derivative expansion for the averaged field represents an acceptable approximation. The worldline picture makes the nonlocal nature of pair production transparent and facilitates a profound understanding of this important quantum phenomenon.

Gies, Holger; Klingmueller, Klaus [Institut fuer theoretische Physik, Universitaet Heidelberg, Philosophenweg 16, D-69120 Heidelberg (Germany)

2005-09-15T23:59:59.000Z

400

Pair production in inhomogeneous fields  

E-Print Network [OSTI]

We employ the recently developed worldline numerics, which combines string-inspired field theory methods with Monte-Carlo techniques, to develop an algorithm for the computation of pair-production rates in scalar QED for inhomogeneous background fields. We test the algorithm with the classic Sauter potential, for which we compute the local production rate for the first time. Furthermore, we study the production rate for a superposition of a constant E field and a spatially oscillating field for various oscillation frequencies. Our results reveal that the approximation by a local derivative expansion fails already for frequencies small compared to the electron mass scale, whereas for strongly oscillating fields a derivative expansion for the averaged field represents an acceptable approximation. The worldline picture makes the nonlocal nature of pair production transparent and facilitates a profound understanding of this important quantum phenomenon.

Holger Gies; Klaus Klingmuller

2005-05-12T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

Behavior of nanoparticle clouds around a magnetized microsphere under magnetic and flow fields  

E-Print Network [OSTI]

When a micron-sized magnetizable particle is introduced into a suspension of nanosized magnetic particles, the nanoparticles accumulate around the microparticle and form thick anisotropic clouds extended in the direction of the applied magnetic field. This phenomenon promotes colloidal stabilization of bimodal magnetic suspensions and allows efficient magnetic separation of nanoparticles used in bioanalysis and water purification. In the present work, size and shape of nanoparticle clouds under the simultaneous action of an external uniform magnetic field and the flow have been studied in details. In experiments, dilute suspension of iron oxide nanoclusters (of a mean diameter of 60 nm) was pushed through a thin slit channel with the nickel microspheres (of a mean diameter of 50$\\mu$m) attached to the channel wall. The behavior of nanocluster clouds was observed in the steady state using an optical microscope. In the presence of strong enough flow, the size of the clouds monotonically decreases with increasing flow speed in both longitudinal and transverse magnetic fields. This is qualitatively explained by enhancement of hydrodynamic forces washing the nanoclusters away from the clouds. In the longitudinal field, the flow induces asymmetry of the front and the back clouds. To explain the flow and the field effects on the clouds, we have developed a simple model based on the balance of the stresses and particle fluxes on the cloud surface. This model, applied to the case of the magnetic field parallel to the flow, captures reasonably well the flow effect on the size and shape of the cloud and reveals that the only dimensionless parameter governing the cloud size is the ratio of hydrodynamic-to-magnetic forces - the Mason number. At strong magnetic interactions considered in the present work (dipolar coupling parameter $\\alpha \\geq 2$), the Brownian motion seems not to affect the cloud behavior.

Cécilia Magnet; Pavel Kuzhir; Georges Bossis; Alain Meunier; Sebastien Nave; Andrey Zubarev; Claire Lomenech; Victor Bashtovoi

2014-04-14T23:59:59.000Z

402

Torsion and the Electromagnetic Field  

E-Print Network [OSTI]

In the framework of the teleparallel equivalent of general relativity, we study the dynamics of a gravitationally coupled electromagnetic field. It is shown that the electromagnetic field is able not only to couple to torsion, but also, through its energy-momentum tensor, to produce torsion. Furthermore, it is shown that the coupling of the electromagnetic field with torsion preserves the local gauge invariance of Maxwell's theory.

V. C. de Andrade; J. G. Pereira

1999-01-11T23:59:59.000Z

403

Noncommutivity and Scalar Field Cosmology  

E-Print Network [OSTI]

In this work we extend and apply a previous proposal to study noncommutative cosmology to the FRW cosmological background coupled to a scalar field, this is done in classical and quantum scenarios. In both cases noncommutativity is introduced in the gravitational field as well as in the scalar field through a deformation of minisuperspace and are able to find exact solutions. Finally, the effects of noncommutativity on the classical evolution are analyzed.

W. Guzmán; M. Sabido; J. Socorro

2007-12-10T23:59:59.000Z

404

Identification and sizing of particle defects in semiconductor-wafer processing  

Science Journals Connector (OSTI)

An experimental study of the sizing of submicron particles on semiconductor wafers is presented. The objective of the study was to determine the accuracy of a state-of-the-art optical wafer scanner by comparing its size response with that of two well established techniques namely differential mobility analysis (DMA) and secondary electronmicroscopy(SEM). Test particles used include polystyrene–latex spheres and SiO 2 Si 3 N 4 W and Cu particles of 64 107 and 202 nm nominal (DMA) sizes. The scanner-indicated sizes using the oblique and normal operational modes were compared to the DMA sizes and to average sizes determined from the SEM images. Results show that the scanner-indicated size is comparable to the SEM-indicated size. However both the scanner size and SEM size exhibit large distributions for a given nominal (DMA) size. The discrepancies are due to a combination of factors such as the effects of particle shape and material and the presence of larger doubly charged particles among those analyzed. A comparison of the normal and oblique scanner operational mode results for the scanner further show that the normal mode undersizes particles somewhat. These results collectively indicate that accurate sizing of complex and unknown submicron sized particles on semiconductor wafers is not an easy task. A thorough understanding of the scanner response to a variety of process particles is essential for the meaningful interpretation of scanning results.

Seong-Ho Yoo; James Weygand; Juergen Scherer; Lawrence Davis; Benjamin Liu; Kurt Christenson; Jeffery Butterbaugh; Natraj Narayanswami

2001-01-01T23:59:59.000Z

405

Quantization of Spin-2 Fields  

Science Journals Connector (OSTI)

A massive spin-2 field has been quantized using Schwinger's action principle. Lorentz invariance and physical positive-definiteness requirements have been verified.

Shau-jin Chang

1966-08-26T23:59:59.000Z

406

Quantum fields in curved spacetime  

E-Print Network [OSTI]

We review the theory of quantum fields propagating in an arbitrary, classical, globally hyperbolic spacetime. Our review emphasizes the conceptual issues arising in the formulation of the theory and presents known results in a mathematically precise way. Particular attention is paid to the distributional nature of quantum fields, to their local and covariant character, and to microlocal spectrum conditions satisfied by physically reasonable states. We review the Unruh and Hawking effects for free fields, as well as the behavior of free fields in deSitter spacetime and FLRW spacetimes with an exponential phase of expansion. We review how nonlinear observables of a free field, such as the stress-energy tensor, are defined, as well as time-ordered-products. The "renormalization ambiguities" involved in the definition of time-ordered products are fully characterized. Interacting fields are then perturbatively constructed. Our main focus is on the theory of a scalar field, but a brief discussion of gauge fields is included. We conclude with a brief discussion of a possible approach towards a nonperturbative formulation of quantum field theory in curved spacetime and some remarks on the formulation of quantum gravity.

Stefan Hollands; Robert M. Wald

2014-06-10T23:59:59.000Z

407

field emission electron microprobe | EMSL  

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

field emission electron microprobe Leads No leads are available at this time. Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. Abstract: As a...

408

EMSL - field emission electron microprobe  

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

field-emission-electron-microprobe en Magnesium behavior and structural defects in Mg+ ion implanted silicon carbide. http:www.emsl.pnl.govemslwebpublications...

409

Electrochemical formation of field emitters  

DOE Patents [OSTI]

Electrochemical formation of field emitters, particularly useful in the fabrication of flat panel displays. The fabrication involves field emitting points in a gated field emitter structure. Metal field emitters are formed by electroplating and the shape of the formed emitter is controlled by the potential imposed on the gate as well as on a separate counter electrode. This allows sharp emitters to be formed in a more inexpensive and manufacturable process than vacuum deposition processes used at present. The fabrication process involves etching of the gate metal and the dielectric layer down to the resistor layer, and then electroplating the etched area and forming an electroplated emitter point in the etched area.

Bernhardt, Anthony F. (Berkeley, CA)

1999-01-01T23:59:59.000Z

410

National High Magnetic Field Laboratory: Superconductors  

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

opposes the magnetic field generating the current. In a perfect diamagnet, the magnetic field lines produced exactly mirror those of the changing magnetic field that induce them,...

411

Electromagnetic field with induced massive term: Case with scalar field  

E-Print Network [OSTI]

We consider an interacting system of massless scalar and electromagnetic field, with the Lagrangian explicitly depending on the electromagnetic potentials, i.e., interaction with broken gauge invariance. The Lagrangian for interaction is chosen in such a way that the electromagnetic field equation acquires an additional term, which in some cases is proportional to the vector potential of the electromagnetic field. This equation can be interpreted as the equation of motion of photon with induced nonzero rest-mass. This system of interacting fields is considered within the scope of Bianchi type-I (BI) cosmological model. It is shown that, as a result of interaction the electromagnetic field vanishes at $t \\to \\infty$ and the isotropization process of the expansion takes place.

Yu. P. Rybakov; G. N. Shikin; Yu. A. Popov; Bijan Saha

2010-04-21T23:59:59.000Z

412

Electromagnetic field with induced massive term: Case with spinor field  

E-Print Network [OSTI]

We consider an interacting system of spinor and electromagnetic field, explicitly depending on the electromagnetic potentials, i.e., interaction with broken gauge invariance. The Lagrangian for interaction is chosen in such a way that the electromagnetic field equation acquires an additional term, which in some cases is proportional to the vector potential of the electromagnetic field. This equation can be interpreted as the equation of motion of photon with induced non-trivial rest-mass. This system of interacting spinor and scalar fields is considered within the scope of Bianchi type-I (BI) cosmological model. It is shown that, as a result of interaction the electromagnetic field vanishes at $t \\to \\infty$ and the isotropization process of the expansion takes place.

Yu. P. Rybakov; G. N. Shikin; Yu. A. Popov; Bijan Saha

2010-08-12T23:59:59.000Z

413

Prediction of the location and size of the stomach using patient characteristics for retrospective radiation dose estimation following radiotherapy  

Science Journals Connector (OSTI)

Following cancer radiotherapy, reconstruction of doses to organs, other than the target organ, is of interest for retrospective health risk studies. Reliable estimation of doses to organs that may be partially within or fully outside the treatment field requires reliable knowledge of the location and size of the organs, e.g., the stomach, which is at risk from abdominal irradiation. The stomach location and size are known to be highly variable between individuals, but have been little studied. Moreover, for treatments conducted years ago, medical images of patients are usually not available in medical records to locate the stomach. In light of the poor information available to locate the stomach in historical dose reconstructions, the purpose of this work was to investigate the variability of stomach location and size among adult male patients and to develop prediction models for the stomach location and size using predictor variables generally available in medical records of radiotherapy patients treated in the past. To collect data on stomach size and position, we segmented the contours of the stomach and of the skeleton on contemporary computed tomography (CT) images for 30 male patients in supine position. The location and size of the stomach was found to depend on body mass index (BMI), ponderal index (PI), and age. For example, the anteroposterior dimension of the stomach was found to increase with increasing BMI (?0.25 cm kg–1 m2) whereas its craniocaudal dimension decreased with increasing PI (??3.3 cm kg–1 m3) and its transverse dimension increased with increasing PI (?2.5 cm kg–1 m3). Using the prediction models, we generated three-dimensional computational stomach models from a deformable hybrid phantom for three patients of different BMI. Based on a typical radiotherapy treatment, we simulated radiotherapy treatments on the predicted stomach models and on the CT images of the corresponding patients. Those dose calculations demonstrated good agreement between predicted and actual stomachs compared with doses derived from a reference model of the body that might be used in the absence of individual CT scan data.

Stephanie Lamart; Rebecca Imran; Steven L Simon; Kazutaka Doi; Lindsay M Morton; Rochelle E Curtis; Choonik Lee; Vladimir Drozdovitch; Roberto Maass-Moreno; Clara C Chen; Millie Whatley; Donald L Miller; Karel Pacak; Choonsik Lee

2013-01-01T23:59:59.000Z

414

Optimized LNG Storage Tanks for Fleet-Size Refueling Stations with Local LNG Liquefiers  

Science Journals Connector (OSTI)

The capacity of a liquid natural gas (LNG) storage tank in a LNG fleet-size refueling station is determined in ... . These considerations drive the selection of the LNG storage tank size upwards. On the other han...

J. A. Barclay; A. J. Corless; E. H. Nelson

1998-01-01T23:59:59.000Z

415

Do smart birds stress less? An interspecific relationship between brain size and corticosterone levels  

Science Journals Connector (OSTI)

...An interspecific relationship between brain size and corticosterone levels adam Z...report that in birds, species with larger brains relative to their body size show lower...CORT levels than species with smaller brains. This relationship is consistent across...

2013-01-01T23:59:59.000Z

416

E-Print Network 3.0 - adjustable pore size Sample Search Results  

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

by the rigid material alone. The difference in pore size distribution before and after heat... are observed in the larger pore range of the pore size distribution while the...

417

CO2 Reduction on Supported Ru/Al2O3 Catalysts: Cluster Size Dependence...  

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

CO2 Reduction on Supported RuAl2O3 Catalysts: Cluster Size Dependence of Product Selectivity. CO2 Reduction on Supported RuAl2O3 Catalysts: Cluster Size Dependence of Product...

418

Optimizing well-stimulation treatment size using mixed integer linear programming  

E-Print Network [OSTI]

This thesis presents a model for optimum sizing of well stimulation treatments. The optimization scheme is based on a combination of a well stimulation type selection and treatment size, therefore determining the optimum type of stimulation...

Picon Aranguren, Oscar

2012-06-07T23:59:59.000Z

419

Vijendravarma et al. 1 Plastic and evolutionary responses of cell size and number to larval  

E-Print Network [OSTI]

and evolutionary reduction of wing size in response to poor larval food. We used flies from six populations, nutritional stress, plasticity, imaginal disks, wing Introduction Body size influences multiple aspects

Alvarez, Nadir

420

Current Size and Remaining Market Potential of the U.S. Energy...  

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

Current Size and Remaining Market Potential of the U.S. Energy Service Company Industry Current Size and Remaining Market Potential of the U.S. Energy Service Company Industry...

Note: This page contains sample records for the topic "field size mmboe" 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.


421

Effects of CSP Support Particle Size on the Performance of Larger Diameter Liquid Partition Columns  

Science Journals Connector (OSTI)

......research-article Editorial Effects of CSP Support Particle Size on the Performance...packed with different particle sizes of CSP (controlled surface porosity) support...larger, infinite-diameter columns and CSP support used in this study. Reduced plate......

H. C. Beachell; J. J. DeStefano

1972-08-01T23:59:59.000Z

422

Fidelity of Analytic Drop Size Distributions in Drizzling Stratiform Clouds Based on Large-Eddy Simulations  

E-Print Network [OSTI]

Cloud microphysical parameterizations and retrievals rely heavily on knowledge of the shape of drop size distributions (DSDs). Many investigations assume that DSDs in the entire or partial drop size range may be approximated ...

Kogan, Yefim L.; Kogan, Zena N.; Mechem, David B.

2009-08-01T23:59:59.000Z

423

A new step size rule in Yan et al.'s self-adaptive projection method  

E-Print Network [OSTI]

Jan 29, 2015 ... Abstract: In this paper, we propose a new step size rule to accelerate Yan et al.'s self-adaptive projection method. Under the new step size ...

Gao Bin

2015-01-29T23:59:59.000Z

424

E-Print Network 3.0 - avian clutch size Sample Search Results  

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

search results for: avian clutch size Page: << < 1 2 3 4 5 > >> 1 Journal of Animal Ecology 2001 Summary: Summary 1. The seasonal decline in clutch size observed in many avian...

425

Effects of droplet size on intrusion of sub-surface oil spills  

E-Print Network [OSTI]

This thesis explores the effects of droplet size on droplet intrusion in sub-surface oil spills. Laboratory experiments were performed where glass beads of various sizes, which serve to simulate oil droplets in deepsea oil ...

Chan, Godine Kok Yan

2013-01-01T23:59:59.000Z

426

Patch size effects on plant species decline in an experimentally fragmented landscape  

E-Print Network [OSTI]

the relative contribution of fragment size vs. succession on species' declines by examining distributions of abundances for 18 plant species declining over time in an experimentally fragmented landscape in northeast Kansas, USA. If patch size effects dominate...

Collins, Cathy Diane; Holt, Robert D.; Foster, Brian L.

2009-09-01T23:59:59.000Z

427

Size Influence on the Oxygen Reduction Reaction Activity and Instability of Supported Pt Nanoparticles  

E-Print Network [OSTI]

Size-dependent oxygen reduction reaction activity (ORR) and instability of Pt nanoparticles is of great importance in proton exchange membrane fuel cell applications. In this study, the size-dependence of ORR activity on ...

Sheng, Wenchao

428

Size based separation of submicron nonmagnetic particles through magnetophoresis in structured obstacle arrays  

E-Print Network [OSTI]

The focus of this work was on developing a novel scalable size based separation technology for nonmagnetic particles in the submicron size range utilizing magnetophoretic forces. When a nonmagnetic particle is immersed in ...

Annavarapu, V. N. Ravikanth (Venkata Nagandra Ravikanth)

2010-01-01T23:59:59.000Z

429

Acceleration-field calculation for a structure-based laser-driven linear accelerator  

E-Print Network [OSTI]

Acceleration-field calculation for a structure-based laser-driven linear accelerator Y. C. Huanga for publication 16 April 1998 A laser-driven particle accelerator, scaled to optical wavelengths, has a feature size many orders of magnitude smaller than a radio-frequency accelerator. However, similar to a radio

Byer, Robert L.

430

Validation of simulated integrated circuit reliability in conjunction with field data  

Science Journals Connector (OSTI)

A thorough reliability analysis of integrated circuit field failure data, recorded from 2002 to 2009, is utilized in order to generate real failure rates for various device process technologies and feature sizes (or "technology nodes"). The results of ... Keywords: failure rate, integrated circuit, physics-of-failure, reliability

Avshalom Hava; Jin Qin; Joseph B. Bernstein

2011-06-01T23:59:59.000Z

431

Behavior of nanoparticle clouds around a magnetized microsphere under magnetic and flow fields  

E-Print Network [OSTI]

1 Behavior of nanoparticle clouds around a magnetized microsphere under magnetic and flow fields-sized magnetizable particle is introduced into a suspension of nanosized magnetic particles, the nanoparticles and allows efficient magnetic separation of nanoparticles used in bioanalysis and water purification

Paris-Sud XI, Université de

432

Transmission of the size of units of quantities and verification conditions as applied to measurement systems  

Science Journals Connector (OSTI)

The meaning of “transmission of the size of units of quantities” and “verification conditions” applied to measurement systems is considered.

A. A. Danilov

2007-05-01T23:59:59.000Z

433

Texas Adapted Genetic Strategies for Beef Cattle--03: Body Size and Milking Level  

E-Print Network [OSTI]

Texas Adapted Genetic Strategies for Beef Cattle III: Body Size and Milking Level Stephen P. Hammack and Ronald J. Gill* B ody size or mass and milking level are primary genetic traits in beef production. In addition to their direct effects...Texas Adapted Genetic Strategies for Beef Cattle III: Body Size and Milking Level Stephen P. Hammack and Ronald J. Gill* B ody size or mass and milking level are primary genetic traits in beef production. In addition to their direct effects...

Hammack, Stephen P.; Gill, Ronald J.

2009-03-30T23:59:59.000Z

434

Core, Grain-Size, and Porosity Data from the Boise Hydrogeophysical Research Site  

E-Print Network [OSTI]

.6. Grain-Size Analysis Data Sheets From Outcrops and Quarries........................66 7.7. Well Master

Barrash, Warren

435

Some considerations on the optimum size for geothermal turbine  

SciTech Connect (OSTI)

The main focus of this work is to show the maximum capacity that is possible from a geothermal turbine. The theorical analysis is made using the concept of the maximum length of the last wheel blades. The theoretical results are compared with the main manufacturers existing information on steam turbines for geothermal application. This work also shows some operational concepts and observations from the central plants installed in the Mexican geothermal fields. In Mexico, from approximately 1970 to present, 28 turbines for geothermal application have been acquired. These turbines have capacities ranging from 1.5 MW to 110 MW, with a total installed capacity of 753 MW. To expand the installed capacity, we would be required to improve the way turbines are selected for all new geothermal projects. Because of the diverse panorama of steam geothermal turbines that are offered at the present time, it is very important to know the maximum capacity that one could get for the established thermodynamic conditions of the steam in the Mexican fields, in order to exploit the resource in the most efficient, economical and functional manner.

Cadenas, C. [CFE Gerencia de Proyectos Geotermoelectricos, Morelia (Mexico)

1996-12-31T23:59:59.000Z

436

Field observations and lessons learned  

SciTech Connect (OSTI)

This presentation outlines observations and lessons learned from the Megaports program. It provides: (1) details of field and technical observations collected during LANL field activities at ports around the world and details of observations collected during radiation detections system testing at Los Alamos National Laboratory; (2) provides suggestions for improvement and efficiency; and (3) discusses possible program execution changes for more effective operations.

Nielsen, Joh B [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

437

Vadose Zone Transport Field Study: Summary Report  

SciTech Connect (OSTI)

From FY 2000 through FY 2003, a series of vadose zone transport field experiments were conducted as part of the U.S. Department of Energy’s Groundwater/Vadose Zone Integration Project Science and Technology Project, now known as the Remediation and Closure Science Project, and managed by the Pacific Northwest National Laboratory (PNNL). The series of experiments included two major field campaigns, one at a 299-E24-11 injection test site near PUREX and a second at a clastic dike site off Army Loop Road. The goals of these experiments were to improve our understanding of vadose zone transport processes; to develop data sets to validate and calibrate vadose zone flow and transport models; and to identify advanced monitoring techniques useful for evaluating flow-and-transport mechanisms and delineating contaminant plumes in the vadose zone at the Hanford Site. This report summarizes the key findings from the field studies and demonstrates how data collected from these studies are being used to improve conceptual models and develop numerical models of flow and transport in Hanford’s vadose zone. Results of these tests have led to a better understanding of the vadose zone. Fine-scale geologic heterogeneities, including grain fabric and lamination, were observed to have a strong effect on the large-scale behavior of contaminant plumes, primarily through increased lateral spreading resulting from anisotropy. Conceptual models have been updated to include lateral spreading and numerical models of unsaturated flow and transport have revised accordingly. A new robust model based on the concept of a connectivity tensor was developed to describe saturation-dependent anisotropy in strongly heterogeneous soils and has been incorporated into PNNL’s Subsurface Transport Over Multiple Phases (STOMP) simulator. Application to field-scale transport problems have led to a better understanding plume behavior at a number of sites where lateral spreading may have dominated waste migration (e.g. BC Cribs and Trenches). The improved models have been also coupled with inverse models and newly-developed parameter scaling techniques to allow estimation of field-scale and effective transport parameters for the vadose zone. The development and utility of pedotransfer functions for describing fine-scale hydrogeochemical heterogeneity and for incorporating this heterogeneity into reactive transport models was explored. An approach based on grain-size statistics appears feasible and has been used to describe heterogeneity in hydraulic properties and sorption properties, such as the cation exchange capacity and the specific surface area of Hanford sediments. This work has also led to the development of inverse modeling capabilities for time-dependent, subsurface, reactive transport with transient flow fields using an automated optimization algorithm. In addition, a number of geophysical techniques investigated for their potential to provide detailed information on the subtle changes in lithology and bedding surfaces; plume delineation, leak detection. High-resolution resistivity is now being used for detecting saline plumes at several waste sites at Hanford, including tank farms. Results from the field studies and associated analysis have appeared in more than 46 publications generated over the past 4 years. These publications include test plans and status reports, in addition to numerous technical notes and peer reviewed papers.

Ward, Andy L.; Conrad, Mark E.; Daily, William D.; Fink, James B.; Freedman, Vicky L.; Gee, Glendon W.; Hoversten, Gary M.; Keller, Jason M.; Majer, Ernest L.; Murray, Christopher J.; White, Mark D.; Yabusaki, Steven B.; Zhang, Z. F.

2006-07-31T23:59:59.000Z

438

Distribution of a Population of Rhizobium leguminosarum bv. trifolii among Different Size Classes of Soil Aggregates  

Science Journals Connector (OSTI)

...from 5 to 77 times greater than the populations...corresponding aggregate size classes of the fallow and...to 2.0-mm size class of the legume treatment...contained a significantly greater density of AR18 than the size classes of 0.25, 0.25...

Ieda C. Mendes; Peter J. Bottomley

1998-03-01T23:59:59.000Z

439

Size Reduction and Densification of Lignocellulosic Biomass Feedstock for Biopower, Bioproducts, and  

E-Print Network [OSTI]

Size Reduction and Densification of Lignocellulosic Biomass Feedstock for Biopower, Bioproducts reduction and densification of lignocellulosic biomass feedstock play a crucial role in the preprocessing and supply of biomass. Size reduction is an operation where the size distribution of biomass particles

440

Sizing assignments: a contribution from software engineering to computer science education  

Science Journals Connector (OSTI)

A method of predicting the sizes of programs from a measure of problem size is shown, and research testing the effectiveness of the method is reported. A regression model for predicting average program size as measured by mean_LOC is shown to perform ...

David F. Haas; Leslie J. Waguespack, Jr.

1989-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

The price-size relationship: analyzing fragmenation of rural land in Texas  

E-Print Network [OSTI]

of market factors such as size on the total purchase price. This research focused on the parcel size and price per acre relationship that exists for Texas rural lands. The objective of this research was to examine the relationship between size and price per...

Miller, Crystelle Leigh

2007-04-25T23:59:59.000Z

442

Global energy gradients and size in colonial organisms: Worker mass and worker number  

E-Print Network [OSTI]

Global energy gradients and size in colonial organisms: Worker mass and worker number in ant size varies globally is a key challenge to ecology. Solar energy may shape gradients of body size by its effects on local temperature and net primary productivity (16­20). Rising global temperatures (21

Kaspari, Mike

443

Positive selection at the ASPM gene coincides with brain size enlargements in cetaceans  

Science Journals Connector (OSTI)

...selection at the ASPM gene coincides with brain size enlargements in cetaceans Shixia Xu...Republic of China The enlargement of cetacean brain size represents an enigmatic event in mammalian...explored. One candidate gene associated with brain size evolution is the abnormal spindle-like...

2012-01-01T23:59:59.000Z

444

Combustion characteristics of fuel droplets with addition of nano and micron-sized aluminum particles  

E-Print Network [OSTI]

Combustion characteristics of fuel droplets with addition of nano and micron-sized aluminum Aluminum nanoparticles Microexplosion Particle aggregation a b s t r a c t The burning characteristics of fuel droplets containing nano and micron-sized aluminum particles were investigated. Particle size

Qiao, Li

445

Nano-sized manganese oxides as biomimetic catalysts for water oxidation in artificial photosynthesis: a review  

Science Journals Connector (OSTI)

...review-article Review articles 1004 30 36 15 Nano-sized manganese oxides as biomimetic...of about approximately 0.5 nm. Thus, nano-sized manganese compounds might be good...particles. In this paper, we focus on nano-sized manganese oxides as functional...

2012-01-01T23:59:59.000Z

446

Paper Number Sizing and Optimal Operation of a Power Split Hydraulic  

E-Print Network [OSTI]

operation becomes more complex. Drive train sizing and system operation in a power-split hybrid vehiclePaper Number Sizing and Optimal Operation of a Power Split Hydraulic Hybrid Drive Train Felicitas operation of a power-split drive train. A method for sizing components, and a modal operation in which

Li, Perry Y.

447

Dust Grain-Size Distributions From MRN to MEM  

E-Print Network [OSTI]

Employing the Maximum Entropy Method algorithm, we fit interstellar extinction measurements which span the wavelength range 0.125-3 micron. We present a uniform set of MEM model fits, all using the same grain materials, optical constants and abundance constraints. In addition, we are taking advantage of improved UV and IR data and better estimates of the gas-to-dust ratio. The model fits cover the entire range of extinction properties that have been seen in the Galaxy and the Magellanic Clouds. The grain models employed for this presentation are the simplistic homogeneous spheres models (i.e., Mathis, Rumpl, & Nordsieck 1977) with two (graphite, silicate) or three (graphite, silicate, amorphous carbon) components. Though such usage is only a first step, the results do provide interesting insight into the use of grain size as a diagnostic of dust environment. We find that the SMC Bar extinction curve cannot be fit using carbon grains alone. This is a challenge to the recent observational result indicating little silicon depletion in the SMC.

Geoffrey C. Clayton; Michael J. Wolff; Ulysses J. Sofia; K. D. Gordon; K. A. Misselt

2003-01-24T23:59:59.000Z

448

Development of an efficient family size solar dryer  

SciTech Connect (OSTI)

Since the air heater is the most important component in a solar food drying system, improving its performance is desirable, especially when the space available for the dryer is limited and its cost is to be kept as low as possible. The solar system considered is the forced convection type, in which air is driven inside the heater by using a small suction fan of low power consumption. In this work, two configurations of air heaters were tested to increase heat gain without much increase in size or cost. This could be achieved by elongating the air path through the collector or by using two glass covers, between which the air is allowed to flow before it enters the heater. For both configurations, an inexpensive reflecting surface is used to increase heat input. Experimental results show an average increase of daily energy input of 40% and 57% for the first and second heater, respectively. This, in turn, increases the thermal efficiency of both heaters. Although the second type is more efficient than the first, it is accompanied by an increase in power consumption. Tests show that for ratios of temperature rise/insolation up to 0.03, the first type is better from the thermal and economical points of view. However, as this ratio increases, the second type becomes more efficient and economical.

Khattab, N.M. [National Research Center, Cairo (Egypt). Solar Energy Dept.

1996-01-01T23:59:59.000Z

449

LAYOUT AND SIZING OF ESF ALCOVES AND REFUGE CHAMBERS  

SciTech Connect (OSTI)

The purpose of this analysis is to establish size requirements and approximate locations of Exploratory Studies Facility (ESF) test and operations alcoves, including refuge chambers during construction of the Topopah Spring (TS) loop. Preliminary conceptual layouts for non-deferred test alcoves will be developed to examine construction feasibility based on current test plans and available equipment. The final location and configuration layout for alcoves will be developed when in-situ rock conditions can be visually determined. This will be after the TBM has excavated beyond the alcove location and the rock has been exposed. The analysis will examine the need for construction of walkways and electrical alcoves in the ramps and main drift. Niches that may be required to accommodate conveyor booster drives and alignments are not included in this analysis. The analysis will develop design criteria for refuge chambers to meet MSHA requirements and will examine the strategic location of refuge chambers based on their potential use in various ESF fire scenarios. This document supersedes DI:BABE00000-01717-0200-00003 Rev 01, ''TS North Ramp Alcove and Stubout Location Analysis'' in its entirety (Reference 5-6).

John Beesley and Romeo S. Jurani

1995-08-25T23:59:59.000Z

450

Advanced Integral-type Small-size PWR - SMART  

SciTech Connect (OSTI)

SMART - an advanced integral-type small-size PWR has been developed for the dual purpose applications of seawater desalination and small-scale power generation. SMART, rated thermal power of 330 MW, adopts various new and innovative design features along with proven PWR technologies, and the non-site-specific basic design has been completed. Highly enhanced safety and reliability, improved performance, simplicity, and modularization are those of strongly emphasized design philosophies which were applied to the system design. The inherent safety improving design and passive safety design features are the key safety design features uniquely characterizing SMART compared to the conventional loop-type reactors. Various transients and accidents were analyzed for the SMART basic design, and the results confirm that safety is assured with margins in any postulated transient and accident. Further, the level-1 full power PSA shows that the core damage frequency is about two orders of magnitude less than those of the existing conventional PWRs. Based on the safety and reliability analyses, it is found that design optimization will further improve the level of safety. Various design verification efforts have been carried out and others are currently underway. (authors)

Chang, Moon H.; Zee, Sung Q.; Kim, Keung K.; Kim, Si-Hwan [Korea Atomic Energy Research Institute, P. O. Box 105, Yuseong, Daejeon (Korea, Republic of)

2004-07-01T23:59:59.000Z

451

Size dependence of solar X-ray flare properties  

E-Print Network [OSTI]

Non-thermal and thermal parameters of 85 solar flares of GOES class B1 to M6 (background subtracted classes A1 to M6) have been compared to each other. The hard X-ray flux has been measured by RHESSI and a spectral fitting provided flux and spectral index of the non-thermal emission, as well as temperature and emission measure of the thermal emission. The soft X-ray flux was taken from GOES measurements. We find a linear correlation in a double logarithmic plot between the non-thermal flux and the spectral index. The higher the acceleration rate of a flare, the harder the non-thermal electron distribution. The relation is similar to the one found by a comparison of the same parameters from several sub-peaks of a single flare. Thus small flares behave like small subpeaks of large flares. Thermal flare properties such as temperature, emission measure and the soft X-ray flux also correlate with peak non-thermal flux. A large non-thermal peak flux entails an enhancement in both thermal parameters. The relation between spectral index and the non-thermal flux is an intrinsic feature of the particle acceleration process, depending on flare size. This property affects the reported frequency distribution of flare energies.

Marina Battaglia; Paolo C. Grigis; Arnold O. Benz

2005-05-09T23:59:59.000Z

452

Magnetic Vortex Core Reversal by Low-Field Excitations  

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

Magnetic Vortex Core Reversal by Low-Field Excitations Print Magnetic Vortex Core Reversal by Low-Field Excitations Print In micrometer-sized magnetic thin films, the magnetization typically adopts an in-plane, circular configuration known as a magnetic vortex. At the vortex core, the magnetization turns sharply out of the plane, pointing either up or down. Magnetic data storage based on this binary phenomenon is an intriguing concept, but it would require the ability to flip the vortex cores on demand. Because these structures are highly stable, very strong magnetic fields of around half a tesla (approximately one-third the field of the strongest permanent magnet) were previously thought to be necessary to accomplish this. At the ALS, a team of researchers from Germany, Belgium, and the U.S. has used time-resolved scanning transmission x-ray microscopy (STXM) to observe vortex motion and demonstrate the feasibility of using weak magnetic fields as low as 1.5 millitesla (mT) to reverse the direction of a vortex core. The observed switching mechanism, which can be understood within the framework of micromagnetic theory, gives insights into basic magnetization dynamics and their possible application to data storage technologies.

453

Magnetic Vortex Core Reversal by Low-Field Excitations  

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

Magnetic Vortex Core Reversal by Low-Field Excitations Print Magnetic Vortex Core Reversal by Low-Field Excitations Print In micrometer-sized magnetic thin films, the magnetization typically adopts an in-plane, circular configuration known as a magnetic vortex. At the vortex core, the magnetization turns sharply out of the plane, pointing either up or down. Magnetic data storage based on this binary phenomenon is an intriguing concept, but it would require the ability to flip the vortex cores on demand. Because these structures are highly stable, very strong magnetic fields of around half a tesla (approximately one-third the field of the strongest permanent magnet) were previously thought to be necessary to accomplish this. At the ALS, a team of researchers from Germany, Belgium, and the U.S. has used time-resolved scanning transmission x-ray microscopy (STXM) to observe vortex motion and demonstrate the feasibility of using weak magnetic fields as low as 1.5 millitesla (mT) to reverse the direction of a vortex core. The observed switching mechanism, which can be understood within the framework of micromagnetic theory, gives insights into basic magnetization dynamics and their possible application to data storage technologies.

454

Magnetic Vortex Core Reversal by Low-Field Excitations  

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

Magnetic Vortex Core Reversal by Low-Field Excitations Print Magnetic Vortex Core Reversal by Low-Field Excitations Print In micrometer-sized magnetic thin films, the magnetization typically adopts an in-plane, circular configuration known as a magnetic vortex. At the vortex core, the magnetization turns sharply out of the plane, pointing either up or down. Magnetic data storage based on this binary phenomenon is an intriguing concept, but it would require the ability to flip the vortex cores on demand. Because these structures are highly stable, very strong magnetic fields of around half a tesla (approximately one-third the field of the strongest permanent magnet) were previously thought to be necessary to accomplish this. At the ALS, a team of researchers from Germany, Belgium, and the U.S. has used time-resolved scanning transmission x-ray microscopy (STXM) to observe vortex motion and demonstrate the feasibility of using weak magnetic fields as low as 1.5 millitesla (mT) to reverse the direction of a vortex core. The observed switching mechanism, which can be understood within the framework of micromagnetic theory, gives insights into basic magnetization dynamics and their possible application to data storage technologies.

455

Magnetic Vortex Core Reversal by Low-Field Excitations  

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

Magnetic Vortex Core Reversal by Magnetic Vortex Core Reversal by Low-Field Excitations Magnetic Vortex Core Reversal by Low-Field Excitations Print Wednesday, 28 March 2007 00:00 In micrometer-sized magnetic thin films, the magnetization typically adopts an in-plane, circular configuration known as a magnetic vortex. At the vortex core, the magnetization turns sharply out of the plane, pointing either up or down. Magnetic data storage based on this binary phenomenon is an intriguing concept, but it would require the ability to flip the vortex cores on demand. Because these structures are highly stable, very strong magnetic fields of around half a tesla (approximately one-third the field of the strongest permanent magnet) were previously thought to be necessary to accomplish this. At the ALS, a team of researchers from Germany, Belgium, and the U.S. has used time-resolved scanning transmission x-ray microscopy (STXM) to observe vortex motion and demonstrate the feasibility of using weak magnetic fields as low as 1.5 millitesla (mT) to reverse the direction of a vortex core. The observed switching mechanism, which can be understood within the framework of micromagnetic theory, gives insights into basic magnetization dynamics and their possible application to data storage technologies.

456

Field Techniques | Open Energy Information  

Open Energy Info (EERE)

Field Techniques Field Techniques Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Field Techniques Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: None Parent Exploration Technique: Exploration Techniques Information Provided by Technique Lithology: Map surface geology and hydrothermal alteration. Rock samples are used to define lithology. Field and lab analyses can be used to measure the chemical and isotopic constituents of rock samples. Bulk and trace element analysis of rocks, minerals, and sediments. Identify and document surface geology and mineralogy. Rapid and unambiguous identification of unknown minerals.[1] Stratigraphic/Structural: Locates active faults in the area of interest. Map fault and fracture patterns, kinematic information. Can reveal relatively high permeability zones. Provides information about the time and environment which formed a particular geologic unit. Microscopic rock textures can be used to estimate the history of stress and strain, and/or faulting.

457

Compact orthogonal NMR field sensor  

DOE Patents [OSTI]

A Compact Orthogonal Field Sensor for emitting two orthogonal electro-magnetic fields in a common space. More particularly, a replacement inductor for existing NMR (Nuclear Magnetic Resonance) sensors to allow for NMR imaging. The Compact Orthogonal Field Sensor has a conductive coil and a central conductor electrically connected in series. The central conductor is at least partially surrounded by the coil. The coil and central conductor are electrically or electro-magnetically connected to a device having a means for producing or inducing a current through the coil and central conductor. The Compact Orthogonal Field Sensor can be used in NMR imaging applications to determine the position and the associated NMR spectrum of a sample within the electro-magnetic field of the central conductor.

Gerald, II, Rex E. (Brookfield, IL); Rathke, Jerome W. (Homer Glen, IL)

2009-02-03T23:59:59.000Z

458

Abandoned oil fields in Kansas and Nebraska  

SciTech Connect (OSTI)

Data on approximately 400 abandoned oil fields in Kansas and 90 abandoned oil fields in Nebraska are presented. The following information is obtained on each field: county; DOE field code; field name; AAPG geologic province code; discovery date; year of last production; discovery well operator; proven acreage; formation thickness; depth of field; API gravity; calendar year; yearly field oil production; yearly field gas production; cumulative oil production; cumulative gas production; number abandoned fields in county; cumulative production of oil from fields; and cumulative production of gas from fields. (DMC)

Not Available

1982-12-01T23:59:59.000Z

459

Does prey size matter? Novel observations of feeding in the leatherback turtle (Dermochelys coriacea) allow a test of predator–prey size relationships  

Science Journals Connector (OSTI)

...journal is 2011 The Royal Society 23 June 2012 research-article Animal behaviour 1001 14 Does prey size matter? Novel observations...turtle, Dermochelys coriacea, does not strictly adhere to this general...htslp notincludedinsearchtext Does prey size matter? Novel observations...

2012-01-01T23:59:59.000Z

460

Reverse?field reciprocity for conducting specimens in magnetic fields  

Science Journals Connector (OSTI)

A new static?electromagnetic reciprocity principle is presented extending ordinary resistive reciprocity to the case of nonzero magnetic fields by requiring the magnetic field to be reversed when the reciprocal measurement is made. The principle is supported by measurements on various types of specimens including those which exhibit the quantum?Hall effect. A derivation using elementary electromagnetic theory shows that the principle will hold provided only that the specimen is electrically linear (Ohmic) and that the Onsager form for the conductivity tensor applies throughout. The principle has important implications for electrical measurements on semiconductors in applied?magnetic fields.

H. H. Sample; W. J. Bruno; S. B. Sample; E. K. Sichel

1987-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

Ultrasonic Phased Array Sound Field Mapping Through Large-Bore Coarse Grained Cast Austenitic Stainless Steel (CASS) Piping Materials  

SciTech Connect (OSTI)

A sound field beam mapping exercise was conducted to further understand the effects of coarse grained microstructures found in CASS materials on phased array ultrasonic wave propagation. Laboratory measurements were made on three CASS specimens with different microstructures; the specimens were polished and etched to reveal measurable grain sizes, shapes and orientations. Three longitudinal, phased array probes were fixed on a specimen's outside diameter with the sound field directed toward one end (face) of the pipe segment over a fixed range of angles. A point receiver was raster scanned over the surface of the specimen face generating a sound field image. A slice of CASS material was then removed from the specimen end and the beam mapping exercise repeated. The sound fields acquired were analyzed for spot size, coherency, and beam redirection. Analyses were conducted between the resulting sound fields and the microstructural characteristics of each specimen.

Cinson, Anthony D.; Crawford, Susan L.; Prowant, Matthew S.; Diaz, Aaron A.; Hathaway, John E.; Anderson, Michael T.

2012-04-16T23:59:59.000Z

462

ARM - Field Campaign - Precision Gas Sampling (PGS) Validation Field  

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

govCampaignsPrecision Gas Sampling (PGS) Validation Field Campaign govCampaignsPrecision Gas Sampling (PGS) Validation Field Campaign Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign : Precision Gas Sampling (PGS) Validation Field Campaign 2003.04.02 - 2003.09.02 Lead Scientist : Marc Fischer For data sets, see below. Description Ecosystem-atmosphere exchange of carbon, water, and energy varies with climate, soil, and land management, in ways 1) that influence the CO2 flux and planetary boundary layer CO2 concentration in ARM CART and 2) that we can model and predict. This activity repeated portable flux system measurements that we performed in spring 2002, by continuing measurements of the spatial heterogeneity of carbon, water, and energy fluxes in fields surrounding the ARM SGP Central Facility (CF).

463

Quantum Field and Cosmic Field-Finite Geometrical Field Theory of Matter Motion Part Three  

E-Print Network [OSTI]

This research establishes an operational measurement way to express the quantum field theory in a geometrical form. In four-dimensional spacetime continuum, the orthogonal rotation is defined. It forms two sets of equations: one set is geometrical equations, another set is the motion equations. The Lorentz transformation can be directly derived from the geometrical equations, and the proper time of general relativity is well expressed by time displacement field. By the motion equations, the typical time displacement field of matter motion is discussed. The research shows that the quantum field theory can be established based on the concept of orthogonal rotation. On this sense, the quantum matter motion in physics is viewed as the orthogonal rotation of spacetime continuum. In this paper, it shows that there are three typical quantum solutions. One is particle-like solution, one is generation-type solution, and one is pure wave type solution. For each typical solution, the force fields are different. Many fea...

Xiao, J

2005-01-01T23:59:59.000Z

464

Cost implications of feedstock combinations for community sized biodiesel production  

SciTech Connect (OSTI)

Biodiesel can be processed from oilseeds or animal fats and used in unmodified diesel engines. This fuel has been produced commercially in Europe for three years. Research indicates that biodiesel can replace diesel fuel without causing harmful effects to an unmodified engine and can reduce harmful emissions . Some European biodiesel plants operate at the community level effectively supplying both fuel and animal feeds. This study examines multiple feedstocks that could be utilized by a community sized biodiesel plant. The model plant used is a 500,000 gallon processing facility. The model plant is assumed to be installed in an existing grain handling facility or feed mill. Animal fats would be purchased from outside sources and oilseeds would be provided by area producers. Producers would retain ownership of the oilseeds and pay a processing fee to the cooperative. Oilseeds would be extruded before being separated into meal and crude oil. The crude oil would be esterified into biodiesel using continuous flow esterification technology. This study concludes under specific conditions, biodiesel can be processed economically at the community level. The results indicate that without farm program benefits to minor oilseeds, soybeans are the most economic feedstock to use in a community based operation. Realistic price information suggests that biodiesel (from soybeans) could be produced for $1.26 per gallon. If producers participate in government programs and are capable of growing minor oilseeds, canola may represent a better feedstock than soybeans. Achieving the lowest costs of production depends on the value assigned to co-product credits such as oilseed meal. The more producers pay for high protein meal for their livestock and poultry, the lower the residual price of biodiesel.

Weber, J.A.; Van Dyne, D.L. [Univ. of Missouri, Columbia, MO (United States)

1993-12-31T23:59:59.000Z

465

Gap-Size Distribution Functions of a Random Sequential Adsorption Model of Segments on the Line  

E-Print Network [OSTI]

We performed extensive simulations accompanied by a detailed study of a two-segment size random sequential model on the line. We followed the kinetics towards the jamming state, but we paid particular attention to the characterization of the jamming state structure. In particular, we studied the effect of the size ratio on the mean-gap size, the gap-size dispersion, gap-size skewness, and gap-size kurtosis at the jamming state. We also analyzed the above quantities for the four possible segment-to-segment gap types. We ranged the values of the size ratio from one to twenty. In the limit of a size ratio of one, one recovers the classical car-parking problem. We observed that at low size ratios the jamming state is constituted by short streaks of small and large segments, while at high values of the size ratio the jamming state structure is formed by long streaks of small segments separated by a single large segment. This view of the jamming state structure as a function of the size ratio is supported by the various measured quantities. The present work can help provide insight, for example, on how to minimize the interparticle distance or minimize fluctuations around the mean particle-to-particle distance.

N. A. M. Araujo; A. Cadilhe

2004-04-18T23:59:59.000Z

466

A dosimetric study of small photon fields using polymer gel and Gafchromic EBT films  

SciTech Connect (OSTI)

The use of small field sizes is increasingly becoming important in radiotherapy particularly since the introduction of stereotactic radiosurgery and intensity-modulated radiation therapy techniques. The reliable measurement of delivered dose from such fields with conventional dosimeters, such as ionization chambers, is a challenging task. In this work, methacrylic and ascorbic acid in gelatin initiated by copper polymer gel dosimeters are employed to measure dose in 3 dimensions. Field sizes of 5 × 5 mm{sup 2}, 10 × 10 mm{sup 2}, 20 × 20 mm{sup 2}, and 30 × 30 mm{sup 2} are investigated for a 6-MV x-rays. The results show an agreement with Gafchromic film, with some variation in measured doses near the edge of the fields, where the film data decrease more rapidly than the other methods. Dose penumbra widths obtained with gel dosimeters and Gafchormic film were generally in agreement with each other. The results of this work indicate that polymer gel dosimetry could be invaluable for the quantification of the 3-dimensional dose distribution in small field size.

Hassani, Hossein [Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran (Iran, Islamic Republic of); Nedaie, Hassan Ali, E-mail: Nedaieha@sina.tums.ac.ir [Cancer Research Center, Tehran University of Medical Sciences, Tehran (Iran, Islamic Republic of); Zahmatkesh, Mohammad Hassan [Department of Medical Physics, Shahid Beheshti university of Medical Sciences, Tehran (Iran, Islamic Republic of); Shirani, Kaveh [Department of Medical Radiation Engineering, Science and Research Branch, Islamic Azad University, Tehran (Iran, Islamic Republic of)

2014-04-01T23:59:59.000Z

467

High field gradient particle accelerator  

DOE Patents [OSTI]

A high electric field gradient electron accelerator utilizing short duration, microwave radiation, and capable of operating at high field gradients for high energy physics applications or at reduced electric field gradients for high average current intermediate energy accelerator applications is disclosed. Particles are accelerated in a smooth bore, periodic undulating waveguide, wherein the period is so selected that the particles slip an integral number of cycles of the r.f. wave every period of the structure. This phase step of the particles produces substantially continuous acceleration in a traveling wave without transverse magnetic or other guide means for the particle. 10 figs.

Nation, J.A.; Greenwald, S.

1989-05-30T23:59:59.000Z

468

High field gradient particle accelerator  

DOE Patents [OSTI]

A high electric field gradient electron accelerator utilizing short duration, microwave radiation, and capable of operating at high field gradients for high energy physics applications or at reduced electric field gradients for high average current intermediate energy accelerator applications. Particles are accelerated in a smooth bore, periodic undulating waveguide, wherein the period is so selected that the particles slip an integral number of cycles of the r.f. wave every period of the structure. This phase step of the particles produces substantially continuous acceleration in a traveling wave without transverse magnetic or other guide means for the particle.

Nation, John A. (Ithaca, NY); Greenwald, Shlomo (Haifa, IL)

1989-01-01T23:59:59.000Z

469

Generation of Gaussian Density Fields  

E-Print Network [OSTI]

This document describes analytical and numerical techniques for the generation of Gaussian density fields, which represent cosmological density perturbations. The mathematical techniques involved in the generation of density harmonics in k-space, the filtering of the density fields, and the normalization of the power spectrum to the measured temperature fluctuations of the Cosmic Microwave Background, are presented in details. These techniques are well-known amongst experts, but the current literature lacks a formal description. I hope that this technical report will prove useful to new researchers moving into this field, sparing them the task of reinventing the wheel.

Hugo Martel

2005-06-22T23:59:59.000Z

470

Ground-state magnetic phase diagram of bow-tie graphene nanoflakes in external magnetic field  

SciTech Connect (OSTI)

The magnetic phase diagram of a ground state is studied theoretically for graphene nanoflakes of bow-tie shape and various sizes in external in-plane magnetic field. The tight-binding Hamiltonian supplemented with Hubbard term is used to model the electronic structure of the systems in question. The existence of the antiferromagnetic phase with magnetic moments localized at the sides of the bow-tie is found for low field and a field-induced spin-flip transition to ferromagnetic state is predicted to occur in charge-undoped structures. For small nanoflake doped with a single charge carrier, the low-field phase is ferrimagnetic and a metamagnetic transition to ferromagnetic ordering can be forced by the field. The critical field is found to decrease with increasing size of the nanoflake. The influence of diagonal and off-diagonal disorder on the mentioned magnetic properties is studied. The effect of off-diagonal disorder is found to be more important than that of diagonal disorder, leading to significantly widened distribution of critical fields for disordered population of nanoflakes.

Sza?owski, Karol, E-mail: kszalowski@uni.lodz.pl, E-mail: kszalowski@wp.pl [Department of Solid State Physics, Faculty of Physics and Applied Informatics, University of ?ód?, ul. Pomorska 149/153, 90-236 ?ód? (Poland)

2013-12-28T23:59:59.000Z

471

Near-field heat transfer between gold nanoparticle arrays  

SciTech Connect (OSTI)

The radiative heat transfer between gold nanoparticle layers is presented using the coupled dipole method. Gold nanoparticles are modelled as effective electric and magnetic dipoles interacting via electromagnetic fluctuations. The effect of higher-order multipoles is implemented in the expression of electric polarizability to calculate the interactions at short distances. Our findings show that the near-field radiation reduces as the radius of the nanoparticles is increased. Also, the magnetic dipole contribution to the heat exchange becomes more important for larger particles. When one layer is displayed in parallel with respect to the other layer, the near-field heat transfer exhibits oscillatory-like features due to the influence of the individual nanostructures. Further details about the effect of the nanoparticles size are also discussed.

Phan, Anh D., E-mail: anhphan@mail.usf.edu [Department of Physics, University of South Florida, Tampa, Florida 33620 (United States); Institute of Physics, Vietnam Academy of Science and Technology, 10 Dao Tan, Ba Dinh, Hanoi 10000 (Viet Nam); Phan, The-Long, E-mail: ptlong2512@yahoo.com [Department of Physics, Chungbuk National University, Cheongju 361-763 (Korea, Republic of); Woods, Lilia M. [Department of Physics, University of South Florida, Tampa, Florida 33620 (United States)

2013-12-07T23:59:59.000Z

472

Magnetic Field Switching of Nanoparticles between Orthogonal Microfluidic Channels  

Science Journals Connector (OSTI)

Permanent magnets have also been used together with integrated current lines to divert micrometer-sized magnetic beads within a microfluidic “Y” geometry,15 and antibody-coated microbeads immobilized in a microfluidic device were used in immunoassays for the sensitive detection of corresponding antigens. ... 35-37 The top piece (?5 mm thick) was formed by casting the PDMS (ratio of PDMS to curing agent was 15:1) over an aluminum master with a line measuring 320 ?m high and 200 ?m wide. ... Magnetic fields were applied using a NdFeB permanent magnet (circumference, 2.5 cm; height, 2.5 cm; field strength at edge, ?0.7 T; Engineered Concepts, Birmingham, AL). ...

Andrew H. Latham; Anand N. Tarpara; Mary Elizabeth Williams

2007-06-23T23:59:59.000Z

473

Near-field effects of asteroid impacts in deep water  

SciTech Connect (OSTI)

Our previous work has shown that ocean impacts of asteroids below 500 m in diameter do not produce devastating long-distance tsunamis. Nevertheless, a significant portion of the ocean lies close enough to land that near-field effects may prove to be the greatest danger from asteroid impacts in the ocean. Crown splashes and central jets that rise up many kilometres into the atmosphere can produce, upon their collapse, highly non-linear breaking waves that could devastate shorelines within a hundred kilometres of the impact site. We present illustrative calculations, in two and three dimensions, of such impacts for a range of asteroid sizes and impact angles. We find that, as for land impacts, the greatest dangers from oceanic impacts are the short-term near-field, and long-term atmospheric effects.

Gisler, Galen R [Los Alamos National Laboratory; Weaver, Robert P [Los Alamos National Laboratory; Gittings, Micheal L [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

474

Freedom Field | Open Energy Information  

Open Energy Info (EERE)

Field Field Jump to: navigation, search Logo: Freedom Field Name Freedom Field Address 3333 Kishwaukee Street Place Rockford, Illinois Zip 61109 Year founded 2009 Phone number 815-387-7570 Coordinates 42.2243753°, -89.0869292° 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":42.2243753,"lon":-89.0869292,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

475

The Sun's global magnetic field  

Science Journals Connector (OSTI)

...the plasma in the Sun's atmosphere...representation of the Sun's large-scale...high density and temperature contrast between...the density and temperature distributions found in the global...magnetic fields on the Sun and other stars...

2012-01-01T23:59:59.000Z

476

Field ionization from carbon nanofibers  

E-Print Network [OSTI]

The Micro Gas Analyzer project aims to develop power-efficient, high resolution, high sensitivity, portable and real-time gas sensors. We developed a field ionizer array based on gated CNTs. Arrays of CNTs are used because ...

Adeoti, Bosun J

2008-01-01T23:59:59.000Z

477

Neutron in Strong Magnetic Fields  

E-Print Network [OSTI]

Relativistic world-line Hamiltonian for strongly interacting 3q systems in magnetic field is derived from the path integral for the corresponding Green's function. The neutral baryon Hamiltonian in magnetic field obeys the pseudomomentum conservation and allows a factorization of the c.m. and internal motion. The resulting expression for the baryon mass in magnetic field is written explicitly with the account of hyperfine, OPE and OGE (color Coulomb) interaction. The neutron mass is fast decreasing with magnetic field, losing 1/2 of its value at eB~0.25 GeV^2 and is nearly zero at eB~0.5 GeV^2. Possible physical consequences of the calculated mass trajectory of the neutron, M_n(B), are presented and discussed.

M. A. Andreichikov; B. O. Kerbikov; V. D. Orlovsky; Yu. A. Simonov

2013-12-08T23:59:59.000Z

478

Carlsbad Field Office - Fact Sheet  

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

the nation's nuclear waste disposal problem Carlsbad Field Office The U.S. Department of Energy (DOE) created the Carlsbad Area Office in late 1993 to lead the nation's transuranic...

479

Deep Vadose Zone Field Activities  

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

HANFORD ADVISORY BOARD, RAP March 6, 2013 Presented by: John Morse DEEP VADOSE ZONE ACTIVITIES Page 2 Deep Vadose Zone Areas Page 3 Deep Vadose Zone Field Activities FY 2014...

480

ROSAT wide field camera mirrors  

Science Journals Connector (OSTI)

The ROSAT wide field camera (WFC) is an XUV telescope operating in the 12–250-eV energy band. The mirror system utilizes Wolter-Schwarzschild type I (WS I) grazing incidence optics...

Willingale, R

1988-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "field size mmboe" 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

Modulation Field Induces Universe Rotation  

E-Print Network [OSTI]

In this paper, we consider a time dependent module field on spacetime extension without modifying commutative relation on noncommutative quantum plane. The significant idea is that $Lorentz$ symmetry is conserved in module and unmodule coordinate. We focus on the redefinition of spacetime structure without considering noncommutative bosonic gas in deforming the product between fields. Which the null vector is a vector on orthogonal $D$ dimensional $Hilbert$ spacetime. In $Riemann$ geometry, the equation of motion is deformed from an induced rotation. Particle field survives on the state composed by two theoretical assumed $null$ vectors, one is commutative, another is anticommutative. In the point of view, neutrino and photon mass are produced by its shift, the rotated effect generates a horizon in redefining particle field.

Chien Yu Chen

2008-06-30T23:59:59.000Z

482

Field Mapping | Open Energy Information  

Open Energy Info (EERE)

Field Mapping Field Mapping Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Field Mapping Details Activities (59) Areas (35) Regions (6) NEPA(0) Exploration Technique Information Exploration Group: Field Techniques Exploration Sub Group: Data Collection and Mapping Parent Exploration Technique: Data Collection and Mapping Information Provided by Technique Lithology: Map surface geology and hydrothermal alteration. Stratigraphic/Structural: Map fault and fracture patterns, kinematic information. Hydrological: Map surface manifestations of geothermal systems. Thermal: Map surface temperature. Cost Information Low-End Estimate (USD): 400.0040,000 centUSD 0.4 kUSD 4.0e-4 MUSD 4.0e-7 TUSD / hour Median Estimate (USD): 600.0060,000 centUSD

483

Electrochemical formation of field emitters  

DOE Patents [OSTI]

Electrochemical formation of field emitters, particularly useful in the fabrication of flat panel displays is disclosed. The fabrication involves field emitting points in a gated field emitter structure. Metal field emitters are formed by electroplating and the shape of the formed emitter is controlled by the potential imposed on the gate as well as on a separate counter electrode. This allows sharp emitters to be formed in a more inexpensive and manufacturable process than vacuum deposition processes used at present. The fabrication process involves etching of the gate metal and the dielectric layer down to the resistor layer, and then electroplating the etched area and forming an electroplated emitter point in the etched area. 12 figs.

Bernhardt, A.F.

1999-03-16T23:59:59.000Z

484

Extreme field physics and QED  

E-Print Network [OSTI]

We give a brief overview of the most important QED effects that can be studied in the presence of extreme fields such as those expected at the Vulcan laser upgraded to a power of 10 Petawatts.

Thomas Heinzl; Anton Ilderton

2008-09-19T23:59:59.000Z

485

Diffeomorphism groups and anyon fields  

SciTech Connect (OSTI)

We make use of unitary representations of the group of diffeomorphisms of the plane to construct an explicit field theory of anyons. The resulting anyon fields satisfy q-commutators, where q is the well-known phase shift associated with a single counterclockwise exchange of a pair of anyons. Our method uses a realization of the braid group by means of paths in the plane, that transform naturally under diffeomorphisms of R{sup 2}.

Goldin, G.A. [Rutgers Univ., New Brunswick, NJ (United States); Sharp, D.H. [Los Alamos National Lab., NM (United States)

1995-09-01T23:59:59.000Z

486

Electromagnetic field and cosmic censorship  

E-Print Network [OSTI]

We construct a gedanken experiment in which an extremal Kerr black hole interacts with a test electromagnetic field. Using Teukolsky's solutions for electromagnetic perturbations in Kerr spacetime, and the conservation laws imposed by the energy momentum tensor of the electromagnetic field and the Killing vectors of the spacetime, we prove that this interaction cannot convert the black hole into a naked singularity, thus cosmic censorship conjecture is not violated in this case.

Koray Düzta?

2014-04-09T23:59:59.000Z

487

Size dependent chemistry of boron and carbon cluster ions  

SciTech Connect (OSTI)

Reactions of boron cluster ions (B[sub n] [sup +], n = 1-14) with water are studied for collision energies from 0.1 to 10.0 eV. For clusters smaller than B[sub 7][sup +], there are a multitude of product channels. For larger clusters, the product distributions are dominated by a single channel: B[sub n-1]D[sup +] + DBO. Under multiple collision conditions, the primary products for all cluster sizes undergo a sequence of secondary etching reactions. Product cross sections are reported for the reaction of mass-selected boron cluster ions (B[sub n][sup +], N = 2-24) with N[sub 2]O for collision energies between 0.1 and 10 eV. The major product channels are addition of a single nitrogen or oxygen atom to the intact cluster ion. For all but the largest cluster ions there are no activation barriers to product formation. The proposed reaction mechanism is complex formation at low collision energies where only one bond in N[sub 2]O is broken. Reactions of C[sub n][sup +] (n = 2-12) with D[sub 2] are studied. Absolute cross sections are given for the major product channels C[sub n]D[sup +] + D and C[sub n[minus]3]D[sub 2][sup +]+C[sub 3]. By varying the collision energy, the reactivity of unreactive carbon cluster ions is activated. Product cross sections are reported for reactions of B[sub 6][sup +] with CH[sub 4] and SiH[sub 4] and of B[sub 12][sup +] with CH[sub 4], SiH[sub 4], NH[sub 3], C[sub 2]H[sub 4], CH[sub 3]OH and (CH[sub 3])[sub 2]CO. The dominant mechanism at low collision energies is dissociative chemisorption with loss of multiple H/H[sub 2]. A description is given for the design and operation of an apparatus used to study the x-ray photochemistry of cryogenic thin films. Synchroton radiation, in situ Fourier Transform Infrared Spectroscopy and Mass Spectrometry are combined to study core-hole excitation processes. Preliminary results are reported for 5-oxohexanenitrile and p-cyanobenzaledyde films.

Hintz, P.A.

1992-01-01T23:59:59.000Z

488

Comparing Server Energy Use and Efficiency Using Small Sample Sizes  

SciTech Connect (OSTI)

This report documents a demonstration that compared the energy consumption and efficiency of a limited sample size of server-type IT equipment from different manufacturers by measuring power at the server power supply power cords. The results are specific to the equipment and methods used. However, it is hoped that those responsible for IT equipment selection can used the methods described to choose models that optimize energy use efficiency. The demonstration was conducted in a data center at Lawrence Berkeley National Laboratory in Berkeley, California. It was performed with five servers of similar mechanical and electronic specifications; three from Intel and one each from Dell and Supermicro. Server IT equipment is constructed using commodity components, server manufacturer-designed assemblies, and control systems. Server compute efficiency is constrained by the commodity component specifications and integration requirements. The design freedom, outside of the commodity component constraints, provides room for the manufacturer to offer a product with competitive efficiency that meets market needs at a compelling price. A goal of the demonstration was to compare and quantify the server efficiency for three different brands. The efficiency is defined as the average compute rate (computations per unit of time) divided by the average energy consumption rate. The research team used an industry standard benchmark software package to provide a repeatable software load to obtain the compute rate and provide a variety of power consumption levels. Energy use when the servers were in an idle state (not providing computing work) were also measured. At high server compute loads, all brands, using the same key components (processors and memory), had similar results; therefore, from these results, it could not be concluded that one brand is more efficient than the other brands. The test results show that the power consumption variability caused by the key components as a group is similar to all other components as a group. However, some differences were observed. The Supermicro server used 27 percent more power at idle compared to the other brands. The Intel server had a power supply control feature called cold redundancy, and the data suggest that cold redundancy can provide energy savings at low power levels. Test and evaluation methods that might be used by others having limited resources for IT equipment evaluation are explained in the report.

Coles, Henry C.; Qin, Yong; Price, Phillip N.

2014-11-01T23:59:59.000Z

489

Optical sensor of magnetic fields  

DOE Patents [OSTI]

An optical magnetic field strength sensor for measuring the field strength of a magnetic field comprising a dilute magnetic semi-conductor probe having first and second ends, longitudinally positioned in the magnetic field for providing Faraday polarization rotation of light passing therethrough relative to the strength of the magnetic field. Light provided by a remote light source is propagated through an optical fiber coupler and a single optical fiber strand between the probe and the light source for providing a light path therebetween. A polarizer and an apparatus for rotating the polarization of the light is provided in the light path and a reflector is carried by the second end of the probe for reflecting the light back through the probe and thence through the polarizer to the optical coupler. A photo detector apparatus is operably connected to the optical coupler for detecting and measuring the intensity of the reflected light and comparing same to the light source intensity whereby the magnetic field strength may be calculated.

Butler, M.A.; Martin, S.J.

1986-03-25T23:59:59.000Z

490

Field Theory of Matter. IV  

Science Journals Connector (OSTI)

The relativistic dynamics of 0- and 1- mesons in the idealization of U3 symmetry is derived from the hypothesis that a compact group of transformations on fundamental fields induces a predominantly local and linear transformation of the phenomenological fields that are associated with particles. The physical picture of phenomenological fields as highly localized functions of fundamental fields implies that the interaction term of the phenomenological Lagrange function can have symmetry properties, expressed by invariance under the compact transformation group, that have no significance for the remainder of the Lagrange function, which describes the propagation of the physical excitations. It is verified that the meson interaction term derived by considering fundamental fermion fields is invariant under the parity-conserving group U6×U6. The implied connection between the ??? and ??? coupling constants is well satisfied. There is a brief discussion of the dynamics of fermion-particle triplets, from which it is shown that the invariance of the similarly derived interaction term implies the mass degeneracy of the singlet and octuplet of 1- mesons, without relation to 0- masses. The triplets are also used to illustrate the derivation of gauge- and relativistically invariant electromagnetic properties. The mass degeneracy of the nine 1- mesons, and of nine 2+ mesons, can be inferred from the commutation properties of bilinear combinations of the fundamental field.

Julian Schwinger

1965-10-11T23:59:59.000Z

491

Raman Images of a Single Molecule in a Highly Confined Plasmonic Field  

E-Print Network [OSTI]

Under the local plasmonic excitation, the Raman images of a single molecule can now reach sub-nm resolution. We report here a general theory to describe the interaction between a molecule and a highly confined plasmonic field. It is shown that when the spatial distribution of the plasmonic field is comparable with the size of the molecule, the plasmonic field needs to be treated quantum mechanically. The resonant Raman image of a molecule is found to be strongly associated with the density of the electronic transition. In combination with the first principles calculations, the simulated Raman image of a porphyrin derivative adsorbed on the silver surface nicely reproduces its experimental counterpart. It reveals that the quantum nature of the highly confined plasmonic field offers a new way to modify the wavefunction of the molecule. The present theory provides the basic framework for describing linear and nonlinear responses of molecules under the non-uniform quantized field.

Duan, Sai; Ji, Yongfei; Shao, Jiushu; Luo, Yi

2014-01-01T23:59:59.000Z

492

Hammer mill operating and biomass physical conditions effects on particle size distribution of solid pulverized biofuels  

Science Journals Connector (OSTI)

Abstract Milling is a required pre-treatment for the use of biomass as a pulverized solid biofuel in some thermochemical technologies such as combustion, gasification and bioethanol production, as well as in densification processes. The particle size plays a key role on these energy conversion technologies. Experimental tests for poplar and corn stover were performed to obtain pulverized material at different physical conditions of the biomass (input particle size and moisture content) and operational parameters (opening sizes of the screen and angular speed of hammers). Fourteen parameters related to size central trends, dispersion and shape of particle size distribution (PSD) were calculated and analyzed by a novel data post-processing methodology, combining Artificial Neural Networks and statistical analysis. Results show that the characteristic size of the product (geometric mean size) is mainly influenced by the classification of the screen with values from five to eight times lower than their openings size. The angular speed of the hammer governs the variability and dispersion of sizes. The higher the angular speed, the lower the dispersion on particle size. Physical conditions of the biomass present a negligible effect on PSD.

Miguel Gil; Inmaculada Arauzo

2014-01-01T23:59:59.000Z

493

Lucky Mound field: A new Mississippian Sherwood shoreline field  

SciTech Connect (OSTI)

Lucky Mound field produces oil and gas from the Sherwood interval of the Mississippian Mission Canyon Formation. Presently, eight wells are producing with development ongoing. Extensive coring, testing, logging, and petrographic evaluations throughout the field have allowed for detailed analysis of reservoir characteristics and paleoenvironmental interpretation. Sherwood shoreline fields typically produce from reservoir-quality packstones and grainstones trapped by a lateral facies changes into impermeable dolomite and anhydrite. At Lucky Mound, packstones, grainstones, and a productive dolomite facies all contribute to the producing interval. The productive dolomite facies is generally found in the upper portion of the Sherwood along the eastern margin of the field. Porosity as high as 22% and permeability values up to 16 md are present in the dolomite facies. These dolomites are the result of complete to partial replacement of micrite. In addition, the dolomitization process has enhanced intercrystalline and intraparticle porosity throughout the Sherwood interval. Pore types present include vuggy, intergranular, intraparticle, and intercrystalline. Pore occluding and replacive cements include fibrous calcite, prismatic calcite spar, baroque dolomite, anhydrite, celestite, pyrite, and chert. An understanding of carbonate depositional environments, diagenetic processes, Williston basin structural development, and Sherwood reservoir behavior is essential in the exploration for new Sherwood fields.

Fisher, R.W. (Balcron Oil, Billings, MT (United States)); Hendricks, M.L. (Hendricks and Associates, Inc., Denver, CO (United States))

1991-06-01T23:59:59.000Z

494

Physicochemical Characterization of Capstone Depleted Uranium Aerosols II: Particle Size Distributions as a Function of Time  

SciTech Connect (OSTI)

The Capstone Depleted Uranium (DU) Aerosol Study, which generated and characterized aerosols containing depleted uranium from perforation of armored vehicles with large-caliber DU penetrators, incorporated a sampling protocol to evaluated particle size distributions. Aerosol particle size distribution is an important parameter that influences aerosol transport and deposition processes as well as the dosimetry of the inhaled particles. These aerosols were collected on cascade impactor substrates using a pre-established time sequence following the firing event to analyze the uranium concentration and particle size of the aerosols as a function of time. The impactor substrates were analyzed using beta spectrometry, and the derived uranium content of each served as input to the evaluation of particle size distributions. Activity median aerodynamic diameters (AMADs) of the particle size distributions were evaluated using unimodal and bimodal models. The particle size data from the impactor measurements was quite variable. Most size distributions measured in the test based on activity had bimodal size distributions with a small particle size mode in the range of between 0.2 and 1.2 um and a large size mode between 2 and 15 um. In general, the evolution of particle size over time showed an overall decrease of average particle size from AMADs of 5 to 10 um shortly after perforation to around 1 um at the end of the 2-hr sampling period. The AMADs generally decreased over time because of settling. Additionally, the median diameter of the larger size mode decreased with time. These results were used to estimate the dosimetry of inhaled DU particles.

Cheng, Yung-Sung; Kenoyer, Judson L.; Guilmette, Raymond A.; Parkhurst, MaryAnn

2009-03-01T23:59:59.000Z

495

Nonperturbing field profile measurements of a sustained spheromak  

Science Journals Connector (OSTI)

In this article we discuss the measurement of the field profile in the sustained spheromak physics experiment (SSPX). We have built a transient internal probe (TIP) diagnostic to measure the internal field profile in a SSPX plasma sustained by dc coaxial helicity injection. TIP is a diagnostic that makes a spatially resolved (i.e. not chord averaged) measurement of the local magnetic field using Faraday rotation. A 1-cm by 4-mm-diameter verdet probe is fired through the plasma at about 2 km/s by a two-stage light gas gun. The probe is illuminated by an argon ion laser throughout the traverse of the plasma—the retro-reflected light is then analyzed with an ellipsometer to determine the field at each location. The speed small size of the probe and the probe cladding make this measurement possible even in hot plasmas (100 s of eV). The measurement is accurate enough (1 MHz ±7 G 1-cm spatial resolution) to map out magneto hydrodynamic (MHD) mode amplitudes from the edge to the magnetic axis.

C. T. Holcomb; T. R. Jarboe; A. T. Mattick; D. N. Hill; H. McLean; R. D. Wood; V. Cellamare; R. H. Bulmer; E. B. Hooper

2001-01-01T23:59:59.000Z

496

3 - Heart Formation and the Heart Field in Amphibian Embryos  

Science Journals Connector (OSTI)

Publisher Summary This chapter examines the embryological studies of heart formation. It is found that the initial steps in establishing cardiac precursors occur during gastrulation, when regions of anterior mesoderm receive signals from the organizer and from adjacent anterior endoderm. It seems likely that the former defines the anterodorsal character of the heart mesoderm, whereas the latter imparts cardiac specificity. Molecular candidates for the organizer signal(s) include members of the fibroblast growth factor and transforming growth factor-? families, along with several other proteins expressed in the early gastrula embryo that have mesoderm-inducing or patterning activity. It is also found that signals from anterior endoderm play an important role in facilitating heart morphogenesis. The distinction between this and the prior role of the endoderm in cardiac specification has sometimes become blurred. Finally, embryo manipulations have demonstrated that the heart field is initially patterned in a dynamic manner. Both cardiac differentiation and morphogenesis are restricted to the anteroventral region of the field within the embryo, even after alteration of the field size. The patterning that underlies this regulative behavior originates at least in part from outside of the heart field since explants of the tissue are freed from such constraints. Inhibition from neural tissue plays some part in this patterning and a role for similar signals within the mesoderm has also been proposed.

Timothy J. Mohun; Li Ming Leong

1999-01-01T23:59:59.000Z

497

A knife-edge array field emission cathode  

SciTech Connect (OSTI)

many cathode applications require a new type of cathode that is able to produce short pulsed electron beams at high emission current. Gated field emitter arrays of micrometer size are recognized as candidates to meet this need and have become the research focus of vacuum microelectronics. Existing fabrication methods produce emitters that are limited either in frequency response or in current emission. One reason is that the structure of these emitters are not sufficiently optimized. In this study, the author investigated the factors that affect the performance of field emitters. An optimum emitter structure, the knife-edge field emitter array, was developed from the analysis. Large field enhancement factor, large effective emission area, and small emitter capacitance are the advantages of the structure. The author next explored various options of fabricating the knife-edge emitter structure. He proposed a unique thin film process procedure and developed the fabrication techniques to build the emitters on (110) silicon wafers. Data from the initial cathode tests showed very low onset voltages and Fowler-Nordheim type emission. Emission simulation based on the fabricated emitter structure indicated that the knife-edge emitter arrays have the potential to produce high performance in modulation frequency and current emission. Several fabrication issues that await further development are discussed and possible solutions are suggested.

Lee, B.

1994-08-01T23:59:59.000Z