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1

Why Ethics is a High Hurdle for AI Drew McDermott  

E-Print Network (OSTI)

Why Ethics is a High Hurdle for AI Drew McDermott Computer Science Department Yale University drew, Indiana, July, 2008 Abstract I argue that there is a gap between so-called "ethical reasoners" and "ethical-decision makers" that can't be bridged by simply giving an ethical reasoner decision-making abili

McDermott, Drew V.

2

Artificial leaf jumps developmental hurdle  

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

Bisfuel Picture Gallery Artificial leaf jumps developmental hurdle 18 Feb 2014 by Jenny Green: In a recent early online edition of Nature Chemistry, ASU scientists, along with...

3

THE APPARENT SOLUBILITY OF ALUMINUM(III) IN HANFORD HIGH-LEVEL WASTE TANKS  

SciTech Connect

The solubility of aluminum in Hanford nuclear waste impacts on the process ability of the waste by a number of proposed treatment options. For many years, Hanford staff has anecdotally noted that aluminum appears to be considerably more soluble in Hanford waste than the simpler electrolyte solutions used as analogues. There has been minimal scientific study to confirm these anecdotal observations, however. The present study determines the apparent solubility product for gibbsite in 50 tank samples. The ratio of hydroxide to aluminum in the liquid phase for the samples is calculated and plotted as a function of total sodium molarity. Total sodium molarity is used as a surrogate for ionic strength, because the relative ratios of mono, di and trivalent anions are not available for all of the samples. These results were compared to the simple NaOH-NaAl(OH{sub 4})H{sub 2}O system, and the NaOH-NaAl(OH{sub 4})NaCl-H{sub 2}O system data retrieved from the literature. The results show that gibbsite is apparently more soluble in the samples than in the simple systems whenever the sodium molarity is greater than two. This apparent enhanced solubility cannot be explained solely by differences in ionic strength. The change in solubility with ionic strength in simple systems is small compared to the difference between aluminum solubility in Hanford waste and the simple systems. The reason for the apparent enhanced solubility is unknown, but could include. kinetic or thermodynamic factors that are not present in the simple electrolyte systems. Any kinetic explanation would have to explain why the samples are always supersaturated whenever the sodium molarity is above two. Real waste characterization data should not be used to validate thermodynamic solubility models until it can be confirmed that the apparent enhanced gibbsite solubility is a thermodynamic effect and not a kinetic effect.

REYNOLDS JG

2012-06-20T23:59:59.000Z

4

Microfluidics for biological analysis: Triumphs and hurdles of CD platforms  

E-Print Network (OSTI)

Microfluidics for biological analysis: Triumphs and hurdles of CD platforms JONATHAN SIEGRIST1 , R on microfluidic technologies has become extensive, particularly in regards to the develop- ment of sample. Centrifugal microfluidic platforms based on the compact-disc format are discussed, along with the advantages

Joshi, Yogesh Moreshwar

5

High Efficiency Gas Turbines Overcome Cogeneration Project Feasibility Hurdles  

E-Print Network (OSTI)

steam injection, NOx control without selective catalytic reduction, (SCRl, reduced down time during maintenance and dispatchability. other factors influencing enhanced aeroderivative economics are complete generator set packaging at the factory... generation packages. EXTENDED ABSTRACT Competition, PURPA, Cogeneration, Independent Power Producers. Topics of mere conversation ten years ago are becoming our laws of today and for electrical generation. Before the next generation of power plants...

King, J.

6

Establishing Equivalence for Microbial-Growth-Inhibitory Effects (“Iso-Hurdle Rules”) by Analyzing Disparate Listeria monocytogenes Data with a Gamma-Type Predictive Model  

Science Journals Connector (OSTI)

...Microbial-Growth-Inhibitory Effects (Iso-Hurdle Rules) by Analyzing Disparate...other in terms of their inhibitory effect (iso-hurdle). We present here a methodology for establishing microbial iso-hurdle rules in three steps: (i) developing...

Laure Pujol; Denis Kan-King-Yu; Yvan Le Marc; Moira D. Johnston; Florence Rama-Heuzard; Sandrine Guillou; Peter McClure; Jeanne-Marie Membré

2011-12-09T23:59:59.000Z

7

From Steeplechase to Sprint: How to Remove the Hurdles and get Utilities to  

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

From Steeplechase to Sprint: How to Remove the Hurdles and get Utilities to From Steeplechase to Sprint: How to Remove the Hurdles and get Utilities to Embrace Energy Efficiency Speaker(s): Peter Cappers Date: February 27, 2008 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Charles Goldman With global warming suddenly on everyone's lips, it seems that energy efficiency is poised to make a profound resurgence after nearly a decade of neglect and disuse. Historically, utilities begrudgingly ran energy efficiency programs only upon direct orders from regulators, often times falling well short of goals set forth by commissioners. But in today's world where both the public and politicians are demanding that utilities take substantially more ownership for their detrimental impacts on the environment, it would seem that utilities are finding ample reason to

8

MATLAB Simulation for Mobile Robot Navigation with Hurdles in Cluttered Environment Using Minimum Rule based Fuzzy Logic Controller  

Science Journals Connector (OSTI)

Abstract In this paper concentrated on the design of a minimum rule based fuzzy-logic controller for robot navigation, and hurdles avoidance in cluttered environment, based on the Mamdani type fuzzy method. The controller has 3 inputs, and single output. This technique generates suitable heading angle maneuvers control of the autonomous vehicle which is used by the robot to reach its goal safely without any collision in cluttered environment. Simulation results show the method can be used for wheeled mobile robot moving on in cluttered environment with lot of hurdles. We present a path-planning system that can control and safely navigate robot motion in a static environment. The success of the mobile robot navigation control depends mostly on the accuracy of absolute measurements of its position, hurdle distances, goal distance, velocity, orientation, and its rate of change its heading angle. The whole navigation system has been tested in a simulation environment with satisfying results.

Anish Pandey; Dayal Ramakrushna Parhi

2014-01-01T23:59:59.000Z

9

New Horizons of Very High Performance Computing (VHPC): Hurdles and Chances  

E-Print Network (OSTI)

/ software co-design scene by adopting FPGAs for embedded system design, now a huge second wave has reached a wide variety of scientific computing communities. Google's yaw- dropping hit rates illustrate-procedural programmability. This also contributes to more recent developments in system architecture, which rely on processes

Hartenstein, Reiner

10

THE IMPACT OF TRACE ADDITIVES ON THE APPARENT SOLUBILITY OF HYDROGEN IN HEAVY OIL AND RELATED FEEDSTOCKS AT LOW AND HIGH TEMPERATURES  

SciTech Connect

A systematic investigation was conducted to provide an accurate determination of hydrogen solubility in liquid media in temperatures in the range of 25-250 C and pressures in the range of 0.5-8 MPa. Results were obtained by an indirect gas solubility measurement method. The method was intended for use with high-resolution camera. The hydrogen solubility measurements were indirect and were based on pressure changes at constant temperature and measured volumes. Since the volume of the view cell was fixed the volume available for the vapor phase could be determined by measuring the location of the liquid-vapor interface. The interface was located to within the height of one pixel using high-resolution camera, which added {+-} 0.4 ml to the uncertainty of the vapor volume. Liquid-liquid interface locations were measured with equal precision. The accuracy of the method was illustrated through hydrogen solubility measurements in hexadecane and tetralin, which were in close agreement with the values available in the literature. Hydrogen solubilities in Athabasca bitumen vacuum bottoms (ABVB) were reported over a broad range of temperatures (80-250 C) and pressures (0.5-8 MPa).

Jalal Abedi

2002-09-01T23:59:59.000Z

11

Apparent Intermediate Supervelocity of Detonation  

Science Journals Connector (OSTI)

... the initiation of a cylindrical charge by an axial shock-wave. In that case the detonation sets out from a circular, coaxial area on the shock front, the radius of ... velocity front overtakes the low-velocity front. Ocf shows the front of the high-velocity detonation along the axis. The slope of ab gives the low velocity D19 and the ...

C. H. JOHANSSON

1961-05-20T23:59:59.000Z

12

Apparent shape of a swimming pool  

Science Journals Connector (OSTI)

The apparent depth of a pool depends on the angle between the normal to the pool surface and the ray that reaches the observer’s eye. For small angles the ratio of apparent to actual depth is 1 / n where n is the index of refraction of the water. As the angle increases the image of a point on the bottom becomes astigmatic giving rise to two principal images. For both images the apparent depth becomes smaller as the angle becomes larger. I show that the appearance of a typical gymnasium pool is significantly different depending on whether the observer is standing at the shallow or the deep end of the pool. In either case one of the principal astigmatic images will be much more apparent than the other.

Kenneth S. Mendelson

2010-01-01T23:59:59.000Z

13

Rubber friction on (apparently) smooth lubricated surfaces  

E-Print Network (OSTI)

We study rubber sliding friction on hard lubricated surfaces. We show that even if the hard surface appears smooth to the naked eye, it may exhibit short wavelength roughness, which may give the dominant contribution to rubber friction. That is, the observed sliding friction is mainly due to the viscoelastic deformations of the rubber by the substrate surface asperities. The presented results are of great importance for rubber sealing and other rubber applications involving (apparently) smooth surfaces.

M. Mofidi; B. Prakash; B. N. J. Persson; O. Albohl

2007-10-18T23:59:59.000Z

14

The role of fuel in determining the high load limit of controlled auto-ignition engines  

E-Print Network (OSTI)

Controlled Auto-Ignition (CAI) engines have the potential to increase fuel economy while lowering nitrogen oxide and soot emissions. One hurdle that is currently being faced is the engine's inability to operate at high ...

Maria, Amir Gamal

2009-01-01T23:59:59.000Z

15

Overcoming the anaerobic hurdle in phenotypic microarrays: Generation andvisualization of growth curve data for Desulfovibrio vulgaris Hildenborough  

SciTech Connect

Growing anaerobic microorganisms in phenotypic microarrays (PM) and 96-well microtiter plates is an emerging technology that allows high throughput survey of the growth and physiology and/or phenotype of cultivable microorganisms. For non-model bacteria, a method for phenotypic analysis is invaluable, not only to serve as a starting point for further evaluation, but also to provide a broad understanding of the physiology of an uncharacterized wild-type organism or the physiology/phenotype of a newly created mutant of that organism. Given recent advances in genetic characterization and targeted mutations to elucidate genetic networks and metabolic pathways, high-throughput methods for determining phenotypic differences are essential. Here we outline challenges presented in studying the physiology and phenotype of a sulfate reducing anaerobic delta proteobacterium, Desulfovibrio vulgaris Hildenborough. Modifications of the commercially available OmniLog(TM) system (Hayward, CA) for experimental setup, and configuration, as well as considerations in PM data analysis are presented. Also highlighted here is data viewing software that enables users to view and compare multiple PM data sets. The PM method promises to be a valuable strategy in our systems biology approach to D. vulgaris studies and is readily applicable to other anaerobic and aerobic bacteria.

Borglin, Sharon E; Joyner, Dominique; Jacobsen, Janet; Mukhopadhyay, Aindrila; Hazen, Terry C.

2008-10-04T23:59:59.000Z

16

Nearly extremal apparent horizons in simulations of merging black holes  

E-Print Network (OSTI)

The spin angular momentum $S$ of an isolated Kerr black hole is bounded by the surface area $A$ of its apparent horizon: $8\\pi S \\le A$, with equality for extremal black holes. In this paper, we explore the extremality of individual and common apparent horizons for merging, rapidly spinning binary black holes. We consider simulations of merging black holes with equal masses $M$ and initial spin angular momenta aligned with the orbital angular momentum, including new simulations with spin magnitudes up to $S/M^2 = 0.994$. We measure the area and (using approximate Killing vectors) the spin on the individual and common apparent horizons, finding that the inequality $8\\pi S extremality by computing the smallest value that Booth and Fairhurst's extremality parameter can take for any scaling. Using this lower bound, we conclude that the common horizons are at least moderately close to extremal just after they appear. Finally, following Lovelace et al. (2008), we construct quasiequilibrium binary-black-hole initial data with "overspun" marginally trapped surfaces with $8\\pi S > A$ and for which our lower bound on their Booth-Fairhurst extremality exceeds unity. These superextremal surfaces are always surrounded by marginally outer trapped surfaces (i.e., by apparent horizons) with $8\\pi Sextremality lower bound on the enclosing apparent horizon is always less than unity but can exceed the value for an extremal Kerr black hole. (Abstract abbreviated.)

Geoffrey Lovelace; Mark A. Scheel; Robert Owen; Matthew Giesler; Reza Katebi; Bela Szilagyi; Tony Chu; Nicholas Demos; Daniel A. Hemberger; Lawrence E. Kidder; Harald P. Pfeiffer; Nousha Afshari

2014-11-26T23:59:59.000Z

17

The Next Big Hurdle: Economics  

Science Journals Connector (OSTI)

...and electricity-storing flywheels. BSCCO has key shortcomings...because the U.S. electricity grid is aging and due to be replaced...of HTS companies, utility-grid operators, and a cooling specialty...HTS power cable to the U.S. grid in Albany, New York. That...

Robert F. Service

2006-11-17T23:59:59.000Z

18

AMB Apparate Maschinenbau GmbH | Open Energy Information  

Open Energy Info (EERE)

AMB Apparate Maschinenbau GmbH AMB Apparate Maschinenbau GmbH Jump to: navigation, search Name AMB Apparate + Maschinenbau GmbH Place Langweid, Germany Zip 86462 Sector Solar Product Germany-based firm that offers automation technology for the solar industry, focussing on wafer handling. Coordinates 48.4907°, 10.85775° 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":48.4907,"lon":10.85775,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

19

Apparent Temperature Dependence on Localized Atmospheric Water Vapor  

E-Print Network (OSTI)

Apparent Temperature Dependence on Localized Atmospheric Water Vapor Matthew Montanaroa, Carl), hence water vapor is the primary constituent of concern. The tower generates a localized water vapor, Office B108, Aiken, SC, USA ABSTRACT The atmosphere is a critical factor in remote sensing. Radiance from

Salvaggio, Carl

20

Motion Processing and From-from-Apparent-Motion in Infancy  

E-Print Network (OSTI)

/VPC) and discrimination paradigms. Infants in both paradigms extracted shape from apparent motion given luminance cues alone, and color and luminance cues co-varying; but failed to extract shape given color cues alone (Studies 1-2). Given only color cues, infants required...

Hirshkowitz, Amy

2014-08-05T23:59:59.000Z

Note: This page contains sample records for the topic "high apparent hurdle" 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

Dynamic Decomposition of Apparent Power in Polyphase Unbalanced Networks  

E-Print Network (OSTI)

the utility of our dynamic power decomposition by applying it to actual data recorded in a paper plant during to characterize the concept of reactive power in the most general case, and to decompose the load currentDynamic Decomposition of Apparent Power in Polyphase Unbalanced Networks with Application

Stankoviæ, Aleksandar

22

ESTABLISHEMENT OF CRACK INDEXES BY ELECTRICAL APPARENT RESISTIVITY DATA  

E-Print Network (OSTI)

ESTABLISHEMENT OF CRACK INDEXES BY ELECTRICAL APPARENT RESISTIVITY DATA A. Samouelian (1,2), I is indeed well adapted to recognize the electrical resistant signature of crack filled by air during-destructive geophysical methods permits a 3D temporal monitoring of the cracking patterns. Electrical resis- tivity

Boyer, Edmond

23

Direct Observation of Amorphous to Amorphous Apparently First-Order Phase Transition in Fused Quartz  

Science Journals Connector (OSTI)

We report for the first time the direct observation of an apparently first-order phase transition in amorphous silica from the low density amorphous phase to the high density amorphous phase with a discontinuous volume change of about 20% from the dilatometric measurements using the piston cylinder apparatus at 36 kbar and 680 °C. Our Raman spectroscopy measurements on the retrieved samples quenched from high pressure and high temperature experiments do not show any Raman peaks indicating a large modification in the intermediate range order in the structure of amorphous silica.

G. D. Mukherjee; S. N. Vaidya; V. Sugandhi

2001-10-16T23:59:59.000Z

24

Is the dissipation induced by ‘‘fuzzy’’ substructures real or apparent?  

Science Journals Connector (OSTI)

There continues to be confusion whether the dissipation which can be induced in a master structure by a multitude of small attached substructures is ‘‘real’’ or only apparent. It is shown that the dissipation is real during steady?state vibration and can cause the master structure to have a larger loss factor than that of the substructures inducing the loss. The dissipation involves the continuous transfer of vibratory power from the master structure to the substructures and its continuous conversion into heat. During transient excitation however some of the initial dissipation in the master structure may be only ‘‘apparent ’’ involving the storing of some of the transferred power as vibratory energy in the substructures and its cyclical transfer back and forth between master and substructures until eventually dissipated at a rate which in this case depends on the loss factors of the substructures. Examples of the two cases will be shown.

M. Strasberg

1997-01-01T23:59:59.000Z

25

E-Print Network 3.0 - apparent partial loss Sample Search Results  

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

5 > >> 1 Apparent partial loss age spectra of Neoarchaean hornblende (Kola Peninsula, Russia): the role of included biotite shown by ArAr laserprobe analysis Summary: Apparent...

26

Catalyst deactivation kinetics: An apparent delay in decreasing of catalyst activity, “inflection point” and data interpretation  

Science Journals Connector (OSTI)

Problems of catalyst deactivation kinetics and catalyst stability testing are considered. An apparent delay...

N. M. Ostrovskii

2011-12-01T23:59:59.000Z

27

Thermodynamics of Evolving Lorentzian Wormhole at Apparent and Event Horizons  

E-Print Network (OSTI)

We have investigated the non-static Lorentzian Wormhole model in presence of anisotropic pressure. We have presented some exact solutions of Einstein equations for anisotropic pressure case. Introducing two EoS parameters we have shown that these solutions give very rich dynamics of the universe yielding to the different expansion history of it in the $r$ - direction and in the $T$ - direction. The corresponding explicit forms of the shape function $b(r)$ is presented.We have shown that the Einstein's field equations and unified first law are equivalent for the dynamical wormhole model. The first law of thermodynamics has been derived by using the Unified first law. The physical quantities including surface gravity and the temperature are derived for the wormhole. Here we have obtained all the results without any choice of the shape function. The validity of generalized second law (GSL) of thermodynamics has been examined at apparent and event horizons for the evolving Lorentzian wormhole.

Ujjal Debnath; Mubasher Jamil; R. Myrzakulov; M. Akbar

2012-02-06T23:59:59.000Z

28

A "fair sampling" perspective on an apparent violation of duality  

E-Print Network (OSTI)

In the event in which a quantum mechanical particle can pass from an initial state to a final state along two possible paths, the duality principle states that "the simultaneous observation of wave and particle behavior is prohibited". [M. O. Scully, B.-G. Englert, and H. Walther. Nature, 351:111-116, 1991.] emphasized the importance of additional degrees of freedom in the context of complementarity. In this paper, we show how the consequences of duality change when allowing for biased sampling, that is, postselected measurements on specific degrees of freedom of the environment of the two-path state. Our work contributes to the explanation of previous experimental apparent violations of duality [R. Menzel, D. Puhlmann, A. Heuer, and W. P. Schleich. Proc. Natl. Acad. Sci., 109(24):9314-9319, 2012.] and opens up the way for novel experimental tests of duality.

Eliot Bolduc; Jonathan Leach; Filippo M. Miatto; Gerd Leuchs; Robert W. Boyd

2014-02-26T23:59:59.000Z

29

JOURNAL OF STRUCTURAL ENGINEERING / MAY 2001 / 527 APPARENT PERIODS OF A BUILDING. II: TIME-FREQUENCY ANALYSIS  

E-Print Network (OSTI)

of a two-part paper, the analysis of the apparent frequency of a seven-story reinforced-concrete hotel. The results also suggest ``self healing'' believed to result from settlement of the soil with time and dynamic compaction from aftershock shaking. Implications of such high variability of the system frequency

Southern California, University of

30

E-Print Network 3.0 - apparent anomalous weak Sample Search Results  

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

between the two cases. As is apparent from equation 17, the anomalous... anomalous transport. It is again appar- ent that this decrease is greatest near the root of the...

31

E-Print Network 3.0 - apparent protein digestibility Sample Search...  

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

Medicine ; Environmental Sciences and Ecology 6 Computational Biology and Chemistry 30 (2006) 209214 Why substrate depletion has apparent first-order Summary: of protein...

32

E-Print Network 3.0 - apparent interfacial fracture Sample Search...  

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

of Oklahoma Collection: Geosciences 7 Static and dynamic mechanical damage mechanisms in TiC-1080 steel cermets Summary: .2. Mechanical testing The quasi-static apparent fracture...

33

Palaeomagnetism of the Silurian Lipeón formation, NW Argentina, and the Gondwana apparent polar wander path  

Science Journals Connector (OSTI)

......different localities. Detailed thermal demagnetization has permitted...complexes from the Bayucla Desert, Sudan-new constraints on the apparent...different localities. Detailed thermal demagnetization has permitted...complexes from the Bayuda Desert, Sudan-new constraints on the apparent......

C. M. Conti; A. E. Rapalini; J. F. Vilas

1995-06-01T23:59:59.000Z

34

Radiated seismic energy from coda measurements and no scaling in apparent stress with seismic moment  

E-Print Network (OSTI)

Radiated seismic energy from coda measurements and no scaling in apparent stress with seismic energy are consistent with independent measurements, where available. We find no dependence in individual seismic energy from coda measurements and no scaling in apparent stress with seismic moment, J. Geophys

Prieto, Germán A.

35

Radon-222 Emanation and the High Apparent Lead Isotope Ages in Lunar Dust  

Science Journals Connector (OSTI)

... 232Th decay chains may be a significant mechanism for a partial redistribution of the post-radon lead daughters. Kraner2 suggested that there may be an alpha-emitting radioactive deposit on ... radioactive deposit on the lunar surface as a result of the decay in space of radon isotopes which might diffuse out of lunar surface material. Turkevich3 reported evidence for such ...

J. A. S. ADAMS; PAULO M. BARRETTO; RONALD B. CLARK; JOE S. DUVAL

1971-05-21T23:59:59.000Z

36

Defining the Critical Hurdles in Cancer Immunotherapy  

E-Print Network (OSTI)

addressed: 1) CIC and CIMT-CIP immune monitoring proficiencyFoundation. The work of CIMT-CIP was supported by a grantImmunoguiding Program (CIMT-CIP) ? Biotherapy Development

2011-01-01T23:59:59.000Z

37

E-Print Network 3.0 - apparently balanced translocation Sample...  

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

Sample search results for: apparently balanced translocation Page: << < 1 2 3 4 5 > >> 1 ATP-dependent Translocation of Proteins along Single-stranded DNA: Models and Methods of...

38

Failure Stress and Apparent Elastic Modulus of Diesel Particulate Filter Ceramics  

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

Three established mechanical test specimen geometries and test methods for brittle materials are adapted to DPF architecture to evaluate failure initiation stress and apparent elastic modulus of the ceramics.

39

E-Print Network 3.0 - apparent optical properties Sample Search...  

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

Mayaguez Collection: Geosciences 7 SIL PUBLICATIONS YEARS 2000 2004 Summary: . 1-13. Armstrong, R.A., J.M. Lpez, and F. Gilbes, "Apparent Water Optical Properties... Properties...

40

E-Print Network 3.0 - apparent respiratory disease Sample Search...  

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

de mathmatiques Collection: Mathematics 4 Bio390 Acid -Base Disturbances thanks to Dr. J.F. Anderson, Summary: .03 mmols L mmHg apparent pKa for carbonic acid-bicarbonate buffer...

Note: This page contains sample records for the topic "high apparent hurdle" 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

E-Print Network 3.0 - apparently disease-free areas Sample Search...  

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

disease-free areas Search Powered by Explorit Topic List Advanced Search Sample search results for: apparently disease-free areas Page: << < 1 2 3 4 5 > >> 1 Declaration from the...

42

Apparent Welding Textures In Altered Pumice-Rich Rocks | Open Energy  

Open Energy Info (EERE)

Apparent Welding Textures In Altered Pumice-Rich Rocks Apparent Welding Textures In Altered Pumice-Rich Rocks Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Apparent Welding Textures In Altered Pumice-Rich Rocks Details Activities (0) Areas (0) Regions (0) Abstract: Fiamme and eutaxitic texture are common in ancient non-welded, pumice breccias. The fiamme are phyllosilicate-rich lenses that define a bedding-parallel foliation resembling eutaxitic texture in welded ignimbrites. Pumice breccias in the Cambrian Mount Read Volcanics (Australia) are composed of tube pumice clasts, bubble-wall shards, plagioclase crystal fragments and volcanic lithic clasts, and contain dark green fiamme and stylolites. These sericite or chlorite+sericite fiamme are aligned roughly parallel to regional bedding, and are enclosed in pale pink

43

The appearance, apparent speed, and removal of optical effects for relativistically moving objects  

Science Journals Connector (OSTI)

Because various parts of an object are different distances from an observer and light takes a finite time to reach the observer the appearance of a relativistically moving object will be very different from that given by the Lorentz contraction. We derive equations that can be applied to a photographic image so that the Lorentz contraction can still be observed. We also give equations that quantify the apparent deformation of the object and plots that show the apparent speed of the object as a function of time. In particular as an object approaches its apparent speed can be much greater than the speed of light. In addition we derive equations that can be applied to photographic images to show how a relativistically moving image will appear. This transformation is applied to photographic images that demonstrate the changes in appearance of a relativistically moving object. The dominate effect is that of appearing to be rotated that is the Terrell effect.

Robert J. Deissler

2005-01-01T23:59:59.000Z

44

Effect of yeast culture and protein solubility on apparent digestibility and nitrogen balance in young lambs  

E-Print Network (OSTI)

woighcd Gooch filter-crucible. Thc crucible and residue were dried at 100 C, cooled, weighed and ashed at 600 C for 1 hr in a muffle furnaces The crucible and ash were cooled and weighed and the crude fiber reported as resi- due minus ashy Volatile...-'~. fcrcnccs ;vere detecv ed, apparent digcotibilitie of the proximate ration components for the lambs fcd the LS ration vrere higher than for those fcd. the HS ration, Addition of YC influenced apparent digestibility with -n interact-ion tcndcncy. Ash...

Stone, Charles Wayne

1977-01-01T23:59:59.000Z

45

Generalized Vaidya spacetime in Lovelock gravity and thermodynamics on the apparent horizon  

SciTech Connect

We present a kind of generalized Vaidya solutions in a generic Lovelock gravity. This solution generalizes the simple case in Gauss-Bonnet gravity reported recently by some authors. We study the thermodynamics of apparent horizon in this generalized Vaidya spacetime. Treating those terms except for the Einstein tensor as an effective energy-momentum tensor in the gravitational field equations, and using the unified first law in Einstein gravity theory, we obtain an entropy expression for the apparent horizon. We also obtain an energy expression of this spacetime, which coincides with the generalized Misner-Sharp energy proposed by Maeda and Nozawa in Lovelock gravity.

Cai Ronggen [Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100190 (China); Cao Liming [Asia Pacific Center for Theoretical Physics, Pohang, Gyeongbuk 790-784 (Korea, Republic of); Hu Yapeng [Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100190 (China); Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China); Kim, Sang Pyo [Department of Physics, Kunsan National University, Kunsan 573-701 (Korea, Republic of); Asia Pacific Center for Theoretical Physics, Pohang, Gyeongbuk 790-784 (Korea, Republic of)

2008-12-15T23:59:59.000Z

46

Systematic variation in the apparent burning area of thermonuclear bursts and its implication for neutron star radius measurement  

E-Print Network (OSTI)

Precision measurements of neutron star radii can provide a powerful probe of the properties of cold matter beyond nuclear density. Beginning in the late 1970s it was proposed that the radius could be obtained from the apparent or inferred emitting area during the decay portions of thermonuclear (type I) X-ray bursts. However, this apparent area is generally not constant, preventing reliable measurement of the source radius. Here we report for the first time a correlation between the variation of the inferred area and the burst properties, measured in a sample of almost 900 bursts from 43 sources. We found that the rate of change of the inferred area during decay is anticorrelated with the burst decay duration. A Spearman rank correlation test shows that this relation is significant at the <10^{-45} level for our entire sample, and at the 7x10^{-37} level for the 625 bursts without photospheric radius expansion. This anticorrelation is also highly significant for individual sources exhibiting a wide range of burst durations, such as 4U 1636-536 and Aql X-1. We suggest that variations in the colour factor, which relates the colour temperature resulted from the scattering in the neutron star atmosphere to the effective temperature of the burning layer, may explain the correlation. This in turn implies significant variations in the composition of the atmosphere between bursts with long and short durations.

Sudip Bhattacharyya; M. Coleman Miller; Duncan K. Galloway

2009-08-28T23:59:59.000Z

47

RESEARCH ARTICLE Apparent downwind depletion of volcanic SO2 flux--lessons  

E-Print Network (OSTI)

. Volcano monitoring . FLYSPEC Introduction Volcanic gas emissions play an important role indicate that dry deposition of sulfur from the plume and conversion of SO2 to sulfate aerosols within 5km downwind, and is responsible for the apparent loss of SO2. Due to the importance of SO2 emission

Williams-Jones, Glyn

48

Apparent violation of thermodynamics second law under Van der Waals gas expansion in vacuum  

E-Print Network (OSTI)

Examining textbooks of thermodynamics we have not able to find a proof of increasing of entropy under free adiabatic expansion in vacuum based on the state equation of the Van der Waals gas. This communication remedies the situation. During proving we faced with an amusing example of apparent violation of thermodynamics second law.

Yury A. Koksharov

2006-05-19T23:59:59.000Z

49

Unified first law and the thermodynamics of the apparent horizon in the FRW universe  

SciTech Connect

In this paper we revisit the relation between the Friedmann equations and the first law of thermodynamics. We find that the unified first law first proposed by Hayward to treat the outertrapping horizon of a dynamical black hole can be used to the apparent horizon (a kind of inner trapping horizon in the context of the FRW cosmology) of the FRW universe. We discuss three kinds of gravity theorties: Einstein theory, Lovelock thoery, and scalar-tensor theory. In Einstein theory, the first law of thermodynamics is always satisfied on the apparent horizon. In Lovelock theory, treating the higher derivative terms as an effective energy-momentum tensor, we find that this method can give the same entropy formula for the apparent horizon as that of black hole horizon. This implies that the Clausius relation holds for the Lovelock theory. In scalar-tensor gravity, we find, by using the same procedure, the Clausius relation no longer holds. This indicates that the apparent horizon of the FRW universe in the scalar-tensor gravity corresponds to a system of nonequilibrium thermodynamics. We show this point by using the method developed recently by Eling et al. for dealing with the f(R) gravity.

Cai Ronggen; Cao Liming [Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100080 (China); Institute of Theoretical Physics, Chinese Academy of Sciences, P.O. Box 2735, Beijing 100080 (China) and Graduate School of the Chinese Academy of Sciences, Beijing 100039 (China)

2007-03-15T23:59:59.000Z

50

Comparison of POLDER Apparent and Corrected Oxygen Pressure to ARM/MMCR Cloud Boundary Pressures  

SciTech Connect

POLDER (POLarization and Directionality of the Earth’s Reflectances) cloud oxygen pressures are compared to cloud boundary pressures obtained from the combination of Lidar and Millimeter Wave Cloud Radar ground measurements located at the Atmospheric Radiation Measurement (ARM) Southern Great Plains (SGP) site. Without ground reflection correction, the apparent pressures are found to be closer to the mean cloud pressure than to the cloud top pressure. Nevertheless, for almost a quarter of our comparison cases the apparent pressure level is found to be below the cloud base level. This problem practically disappears applying a simple correction for the surface reflection effect. The corrected oxygen pressures are then found to be very close (12 hPa on average) to the mean cloud pressure.

Vanbauce, Claudine; Cadet, Bertrand; Marchand, Roger T.

2003-03-06T23:59:59.000Z

51

Non-equilibrium thermodynamics of dark energy on the power-law entropy corrected apparent horizon  

E-Print Network (OSTI)

We investigate the Friedmann-Robertson-Walker (FRW) universe (containing dark energy) as a non-equilibrium (irreversible) thermodynamical system by considering the power-law correction to the horizon entropy. By taking power-law entropy area law which appear in dealing with the entanglement of quantum fields in and out the horizon, we determine the power-law entropy corrected apparent horizon of the FRW universe.

M. Umar Farooq; Mubasher Jamil

2011-11-24T23:59:59.000Z

52

ASSESSING THE SIGNIFICANCE OF APPARENT CORRELATIONS BETWEEN RADIO AND GAMMA-RAY BLAZAR FLUXES  

SciTech Connect

Whether or not a correlation exists between the radio and gamma-ray flux densities of blazars is a long-standing question, and one that is difficult to answer confidently because of various observational biases, which may either dilute or apparently enhance any intrinsic correlation between radio and gamma-ray luminosities. We introduce a novel method of data randomization to evaluate quantitatively the effect of these biases and to assess the intrinsic significance of an apparent correlation between radio and gamma-ray flux densities of blazars. The novelty of the method lies in a combination of data randomization in luminosity space (to ensure that the randomized data are intrinsically, and not just apparently, uncorrelated) and significance assessment in flux space (to explicitly avoid Malmquist bias and automatically account for the limited dynamical range in both frequencies). The method is applicable even to small samples that are not selected with strict statistical criteria. For larger samples we describe a variation of the method in which the sample is split in redshift bins, and the randomization is applied in each bin individually; this variation is designed to yield the equivalent to luminosity-function sampling of the underlying population in the limit of very large, statistically complete samples. We show that for a smaller number of redshift bins, the method yields a worse significance, and in this way it is conservative: although it may fail to confirm an existing intrinsic correlation in a small sample that cannot be split into many redshift bins, it will not assign a stronger, artificially enhanced significance. We demonstrate how our test performs as a function of number of sources, strength of correlation, and number of redshift bins used, and we show that while our test is robust against common-distance biases and associated false positives for uncorrelated data, it retains the power of other methods in rejecting the null hypothesis of no correlation for correlated data.

Pavlidou, V.; Richards, J. L.; Max-Moerbeck, W.; King, O. G.; Pearson, T. J.; Readhead, A. C. S.; Reeves, R.; Stevenson, M. A. [California Institute of Technology, Owens Valley Radio Observatory, Pasadena, CA 91125 (United States); Angelakis, E.; Fuhrmann, L.; Zensus, J. A. [Max-Planck-Institut fuer Radioastronomie, Bonn 53121 (Germany); Giroletti, M. [INAF Istituto di Radioastronomia, Bologna (Italy); Reimer, A. [Institut fuer Astro- und Teilchenphysik and Institut fuer Theoretische Physik, Leopold-Franzes-Universitaet Innsbruck, Innsbruck,Austria (Austria); Healey, S. E.; Romani, R. W.; Shaw, M. S. [Department of Physics/KIPAC, Stanford University, Stanford, CA 94305 (United States)

2012-06-01T23:59:59.000Z

53

high  

Gasoline and Diesel Fuel Update (EIA)

0 0 Summary Our short-term outlook for a wide array of energy prices has been adjusted upward as international and domestic energy supply conditions have tightened. We think that crude oil prices are as likely as not to end the year $2 to $3 per barrel higher than our previous projections. Thus, we think that the probability of West Texas Intermediate costing an average of $30 per barrel or more at midwinter is about 50 percent. On their current track, heating oil prices are likely to be about 30 percent above year-ago levels in the fourth quarter. Prices for Q1 2001 seem more likely now to match or exceed the high level seen in Q1 2000. Tight oil markets this year and an inherent propensity for high gas utilization in incremental power supply have resulted in rising North American natural gas

54

Closeout of IE Bulletin 83-07: Apparently fraudulent products sold by Ray Miller, Inc  

SciTech Connect

Documentation is provided in this report for the closeout of IE Bulletin 83-07 regarding apparently fraudulent products sold by Ray Miller, Inc., to nuclear power and fuel facilities. The bulletin and two supplements were issued to all holders of nuclear power reactor or fuel facility operating licenses or construction permits. Four actions were required of all affected facilities to provide assurance that fraudulent items are not used in safety-related applications, unless qualified by tests. Review of utility responses and NRC/Region inspection reports shows that the bulletin is closed for all of the 118 power facilities and for the two fuel facilities to which it was issued for action. Facilities where were shut down or had construction halted indefinitely or permanently at the time of issuance of this report are not included. It is concluded that all bulletin concerns have been resolved.

Foley, W.J.; Dean, R.S.; Hennick, A. (Parameter, Inc., Elm Grove, WI (USA))

1991-03-01T23:59:59.000Z

55

high  

Gasoline and Diesel Fuel Update (EIA)

0 0 Highlights International Oil Markets Prices. We have raised our world oil price projection by about $2 per barrel for this month because of assumed greater compliance by OPEC to targeted cuts, especially for the second quarter of 2000 (Figure 1). The expected decline in world petroleum inventories continues (Figure 2), and, given the generally stiff resolve of OPEC members to maintain production cuts, any sign of a turnaround in stocks may be postponed until later this year than previously assumed (Q3 instead of Q2). Our current estimate for the average import cost this past January is now $25 per barrel, a nearly $15-per-barrel increase from January 1999. Crude oil prices are expected to remain at relatively high levels for the first half of 2000, but

56

The impacts of solar water heating in low-income households on the distribution utility’s active, reactive and apparent power demands  

Science Journals Connector (OSTI)

In Brazilian low-income households, water-heating requirements are typically met by electrical showerheads. On average, 73.1% of all residential units in the country are equipped with these resistance-heating devices, with nominal powers ranging from 3 to 8 kW. This situation imposes a considerable burden on the electricity utility companies, since electrical showerheads typically represent the highest load but the lowest utilization (load factor) in a residential consumer unit. Furthermore, typical utilization times coincide with, and contribute to, the electrical power demand peaks in Brazil, rendering these low-cost, high-power electrical devices a high-cost consumer for the electrical system to cater for. For low-income residential consumers, electricity tariffs are subsidized, and utilities must therefore make a considerable investment in infrastructure for a limited return. In this paper we analyze the impacts of solar water heating in low-income households on the distribution utility active, reactive and apparent power demands. We have monitored a statistically representative group of low-income residences equipped with a compact domestic solar water heater in Florianopolis – Brazil for 1 year. We show that in comparison with identical residential units using electrical showerheads, with the adoption of solar water heating the reductions in the active, reactive and apparent power demands on the distribution utility were 49%, 29% and 49% respectively.

Helena F. Naspolini; Ricardo Rüther

2011-01-01T23:59:59.000Z

57

Significance of apparent discrepanices in water ages derived from atmospheric radionuclides at Yucca Mountain, Nevada  

SciTech Connect

Cosmogenic {sup 36}Cl and {sup 14}C produced in the atmosphere are being used to estimate water residence times in the unsaturated zone at Yucca Mountain. Results thus far show a systematic discordance in that {sup 14}C-based ages are generally one to two orders of magnitude younger than {sup 36}Cl-based ages. This lack of concordance probably arises from one or more of the following reasons: (1) different transport mechanisms, e.g., vapor transport for {sup 14}C; (2) different magnitudes and timing of bomb-pulse signals; (3) mixing of waters from different flow paths; and (4) possibly inadequate methods for correcting for the effect of sample contamination by carbon or chlorine from sources other than the infiltrating water. Preliminary numerical simulation results using the FEHMN code suggest that spatial variation in infiltration rates can enhance lateral flow and mixing that leads to discordance in apparent ages depending on the dating technique. Examples are presented to show that disparate radiometric ages are inevitable and to be expected where mixing of waters of markedly different ages occurs.

Liu, B.; Fabryka-Martin, J.; Wolfsberg, A.; Robinson, B. [Los Alamos National Lab., NM (United States); Sharma, P. [Purdue Univ., Lafayette, IN (United States). Dept. of Physics

1995-02-23T23:59:59.000Z

58

Abstract--Passive robotic devices may exhibit a spatially varying apparent inertia perceptible to a human user. The  

E-Print Network (OSTI)

], as manipulanda for teleoperation [4], and as tools for the exploration of human motion control under motion, and is relevant to many passive mechanisms, including programmable constraint machines or "cobots," which use low-power the apparent inertia and desired inertia are equivalent. The second uses a low-power actuator to control

MacIver, Malcolm A.

59

Effects of sustained subculture on apparent rejuvenation of the apple rootstock M.9 in vitro and in vivo  

E-Print Network (OSTI)

as a result of micropropagation may be ex- ploited to improve conventional propa- gation of clones which with cuttings from conventionally propa- gated plants. Results Apparent rejuvenation in vitro Shoot production but not at the 21 st subculture. Establishment of plantlets in compost was low following in vitro rooting

Paris-Sud XI, Université de

60

E-Print Network 3.0 - apparent grbs evolution Sample Search Results  

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

reserved. Printed in the U.S.A. Summary: The origin and progenitors of short-hard gamma-ray bursts (GRBs) remain a puzzle and a highly debated topic... . Recent Swift observations...

Note: This page contains sample records for the topic "high apparent hurdle" 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

Apparent Neutron Emissions from Polyethylene Capsules during Neutron Activation and Delayed Neutron Counting  

Science Journals Connector (OSTI)

At Imperial College uranium is determined at very low levels in environmental samples by delayed neutron counting. High density polyethylene capsules are used ... transfer system, from the reactor, to the neutron

R. Benzing; N. M. Baghini; B. A. Bennett…

2000-05-01T23:59:59.000Z

62

Hawking radiation as tunneling and the unified first law of thermodynamics at the apparent horizon in the FRW universe  

E-Print Network (OSTI)

Relations between the tunneling rate and the unified first law of thermodynamics at the apparent horizon of the FRW universe are investigated. The tunneling rate arises as a consequence of the unified first law of thermodynamics in such a dynamical system. The analysis shows obviously how the tunneling is intimately connected with the unified first law of thermodynamics through the principle of conservation of energy.

Ke-Xia Jiang; San-Min Ke; Dan-Tao Peng; Jun Feng

2008-12-16T23:59:59.000Z

63

Multi-Material Lightweight Vehicle Hurdles Into the Future  

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

While crashing a car isn't usually considered a good thing, running through a crash test was a major milestone for Ford and Magna's Multimaterial Lightweight Vehicle. This unique concept car, supported by a project funded by the Energy Department's Vehicle Technologies Office, is 25 percent lighter than the 2013 Ford Fusion, a similar midsized sedan. As reducing a vehicle's weight by 10 percent can increase its fuel economy by 6 to 8 percent, the lightweight materials in this vehicle have the potential to save consumers fuel and money in the future.

64

Transatlantic Convergence with Respect to the Fourth Hurdle?  

Science Journals Connector (OSTI)

There appears to be movement towards convergence between the US and Europe in terms of the objectives of prescription drug cost containment, improvement in and more equitable access to pharmaceuticals, and min...

Joshua Cohen

2006-12-01T23:59:59.000Z

65

Apparent horizon and gravitational thermodynamics of the Universe: The temperature confusion, first and second laws, and extensions to modified gravity  

E-Print Network (OSTI)

The thermodynamics of the Universe is re-studied by requiring its compatibility with the holographic-style gravitational equations which govern the dynamics of both the cosmological apparent horizon and the entire Universe. We start from the Lambda Cold Dark Matter ($\\Lambda$CDM) cosmology of general relativity (GR) to establish a framework for the gravitational thermodynamics. The Clausius equation $T_AdS_A=-A_A \\psi_t$ for the isochoric process of an instantaneous apparent horizon indicates that, the Universe and its horizon entropies encode the Positive Out thermodynamic sign convention, which encourage us to adjust the traditional positive-heat-in Gibbs equation into the positive-heat-out version $dE_m=-T_mdS_m-P_mdV$. It turns out that the standard and the generalized second laws (GSLs) of nondecreasing entropies are always respected by the event-horizon system as long as the expanding Universe is dominated by nonexotic matter $-1\\leq w_m\\leq 1$, while for the apparent-horizon simple open system the two ...

Tian, David Wenjie

2014-01-01T23:59:59.000Z

66

Mon. Not. R. Astron. Soc. 401, 26 (2010) doi:10.1111/j.1365-2966.2009.15632.x Systematic variation in the apparent burning area of thermonuclear  

E-Print Network (OSTI)

in the apparent burning area of thermonuclear bursts and its implication for neutron star radius measurement Sudip area during the decay portions of thermonuclear (type I) X-ray bursts. However, this apparent area are challenging. Thermonuclear bursts provide one of the very few promising methods to measure the neutron star

Miller, Cole

67

Viscosity model of high-viscosity dispersing system  

Science Journals Connector (OSTI)

High-viscosity dispersing system is formed by dispersing the solid particles in the high-viscosity continuous medium. It is very easy to ... the rheology behavior becomes complicated. The apparent viscosity of th...

Xian-fu Wei ???; Na Wang ??…

2008-09-01T23:59:59.000Z

68

Vorwärmer und Apparate  

Science Journals Connector (OSTI)

Einen Überblick über die Vielzahl von Hilfseinrichtungen, die in den Hilfsbetrieb der Maschinenanlage eingeschaltet bzw. für den eigentlichen Schiffsbetrieb notwendig ist, gibt das Bild 14.1, das das Wärmeschaltb...

Baudirektor Dipl.-Ing. G. Mau

1972-01-01T23:59:59.000Z

69

INTERFEROMETRY ON MIRA IN THE MID-INFRARED: CYCLIC VARIABILITY OF THE CONTINUUM DIAMETER AND THE EFFECT OF SPECTRAL LINES ON APPARENT SIZE  

E-Print Network (OSTI)

AND THE EFFECT OF SPECTRAL LINES ON APPARENT SIZE J. Weiner, D. D. S. Hale, and C. H. Townes Space Sciences2O gas. Subject headings: infrared: stars -- stars: AGB and post-AGB -- stars: atmospheres -- stars

California at Berkeley, University of

70

The regulation of ethylene biosynthesis and its apparent mode of action in germinating seeds of Latuca sativa, var. Premier Great Lakes  

E-Print Network (OSTI)

the oxidation of various growth inhibitors or, possibly, competitive uptake of 02 through a seed coat-based peroxidase system (17, 45). Per- oxidase, citric acid oxidase and polyphenol oxidase activity increased in lettuce seeds at about the 24th hour... Thesis by JAMES RANDOLPH DUNLAP Approved as to style and content by: C airman of Co ittee (Head o D artment) Member Member) August 19'75 ABSTRACT The Regulation of Ethylene Biosynthesis and its Apparent Mode of Action in Germinating Seeds...

Dunlap, James Randolph

2012-06-07T23:59:59.000Z

71

The generalized second law in irreversible thermodynamics for the interacting dark energy in a non-flat FRW universe enclosed by the apparent horizon  

E-Print Network (OSTI)

We investigate the validity of the generalized second law in irreversible thermodynamics in a non-flat FRW universe containing the interacting dark energy with cold dark matter. The boundary of the universe is assumed to be enclosed by the dynamical apparent horizon. We show that for the present time, the generalized second law in nonequilibrium thermodynamics is satisfied for the special range of the energy transfer constants.

K. Karami; S. Ghaffari

2009-12-02T23:59:59.000Z

72

Apparent ridges for line drawing  

E-Print Network (OSTI)

Non-photorealistic line drawing depicts 3D shapes through the rendering of feature lines. A number of characterizations of relevant lines have been proposed but none of these definitions alone seem to capture all ...

Judd, Tilke (Tilke M.)

2007-01-01T23:59:59.000Z

73

The emergence of Clostridium thermocellum as a high utility candidate for consolidated bioprocessing applications  

SciTech Connect

First isolated in 1926, Clostridium thermocellum has recently received increased attention as a high utility candidate for use in consolidated bioprocessing (CBP) applications. These applications, which seek to process lignocellulosic biomass directly into useful products such as ethanol, are gaining traction as economically feasible routes toward the production of fuel and other high value chemical compounds as the shortcomings of fossil fuels become evident. This review evaluates C. thermocellum's role in this transitory process by highlighting recent discoveries relating to its genomic, transcriptomic, proteomic, and metabolomic responses to varying biomass sources, with a special emphasis placed on providing an overview of its unique, multivariate enzyme cellulosome complex and the role that this structure performs during biomass degradation. Both naturally evolved and genetically engineered strains are examined in light of their unique attributes and responses to various biomass treatment conditions, and the genetic tools that have been employed for their creation are presented. Several future routes for potential industrial usage are presented, and it is concluded that, although there have been many advances to significantly improve C. thermocellum's amenability to industrial use, several hurdles still remain to be overcome as this unique organism enjoys increased attention within the scientific community.

Akinsho, Hannah [Georgia Institute of Technology, Atlanta; Yee, Kelsey L [ORNL; Close, Daniel M [ORNL; Ragauskas, Arthur [University of Tennessee, Knoxville

2014-01-01T23:59:59.000Z

74

Highly entangled photons from hybrid piezoelectric-semiconductor quantum dot devices  

E-Print Network (OSTI)

Entanglement resources are key ingredients of future quantum technologies. If they could be efficiently integrated into a semiconductor platform a new generation of devices could be envisioned, whose quantum-mechanical functionalities are controlled via the mature semiconductor technology. Epitaxial quantum dots (QDs) embedded in diodes would embody such ideal quantum devices, but QD structural asymmetries lower dramatically the degree of entanglement of the sources and hamper severely their real exploitation in the foreseen applications. In this work, we overcome this hurdle using strain-tunable optoelectronic devices, where any QD can be tuned for the emission of highly polarization-entangled photons. The electrically-controlled sources violate Bell inequalities without the need of spectral or temporal filtering and they feature the highest degree of entanglement ever reported for QDs, with concurrence as high as 0.75(2). These quantum-devices are at present the most promising candidates for the direct implementation of QD-based entanglement-resources in quantum information science and technology.

Rinaldo Trotta; Johannes S. Wildmann; Eugenio Zallo; Oliver G. Schmidt; Armando Rastelli

2014-03-02T23:59:59.000Z

75

Hurdling Barriers: Labor and Employment Experiences of Asian Americans with Disabilities  

E-Print Network (OSTI)

News and World Report, December 26, Sue, Stanley. "Mentaland World Report on December 26, 1996. The author wrote, "At

Wong, Peter Joseph

2012-01-01T23:59:59.000Z

76

Remediation of Groundwater Contaminated with Organics and Radionuclides - An Innovative Approach Eases Traditional Hurdles  

SciTech Connect

Traditional approaches to the remediation of contaminated groundwater, such as pump-and-treat, have been used for many years for the treatment of groundwater contaminated with various organics. However the treatment of groundwater contaminated with organics and radionuclides has been considerably more challenging. Safety and Ecology Corporation (SEC) was recently faced with these challenges while designing a remediation system for the remediation of TCE-contaminated groundwater and soil at the RMI Extrusion Plant in Ashtabula, OH. Under contract with RMI Environmental Services (RMIES), SEC teamed with Regenesis, Inc. to design, implement, and execute a bioremediation system to remove TCE and associated organics from groundwater and soil that was also contaminated with uranium and technetium. The SEC-Regenesis system involved the injection of Hydrogen Release Compound (HRC), a natural attenuation accelerant that has been patented, designed, and produced by Regenesis, to stimulate the reductive dechlorination and remediation of chlorinated organics in subsurface environments. The compound was injected using direct-push Geoprobe rods over a specially designed grid system through the zone of contaminated groundwater. The innovative approach eliminated the need to extract contaminated groundwater and bypassed the restrictive limitations listed above. The system has been in operation for roughly six months and has begun to show considerable success at dechlorinating and remediating the TCE plume and in reducing the radionuclides into insoluble precipitants. The paper will provide an overview of the design, installation, and initial operation phase of the project, focusing on how traditional design challenges of remediating radiologically contaminated groundwater were overcome. The following topics will be specifically covered: a description of the mechanics of the HRC technology; an assessment of the applicability of the HRC technology to contaminated groundwater plumes and other potential remediation opportunities; a discussion of how the implementation of the HRC technology eased permitting issues and other challenges of remediating groundwater contaminated with radionuclides and organics; an overview of the remedial design and installation of the design including the inputs required to design the remediation system; a summary of results achieved to date and a forecast of future results; and a discussion of future needs and lessons learned.

Scott, J.; Case, N.; Coltman, K.

2003-02-25T23:59:59.000Z

77

The Effect of Uncertainty on Pollution Abatement Investments: Measuring Hurdle Rates for Swedish Industry  

E-Print Network (OSTI)

, oil price uncertainty, abatement investment, sulfur emissions, pulp and paper industry, energy ex post data. The method is based on a structural option value model where the future price using a panel of firms from the Swedish pulp and paper industry, and the energy and heating sector

Paris-Sud XI, Université de

78

Hurdling Barriers: Labor and Employment Experiences of Asian Americans with Disabilities  

E-Print Network (OSTI)

French (2001) noted that negative attitudes about people with disabilities are sometimes disguised as a broad-French (2001) noted that negative attitudes about people with disabilities are sometimes disguised as a broad-

Wong, Peter Joseph

2012-01-01T23:59:59.000Z

79

FATIGUE AND FRACTURE BEHAVIOR OF HIGH TEMPERATURE MATERIALS  

E-Print Network (OSTI)

of damagetolerance in Ti3SiC,; (above the "ductile-brittle" transition temperature), where in fact, the plastic behavior in general is unusual for carbides and significant high-temperature deformation and damage are first is believed to be due to its layered structure and the metallic apparent. Of the two

Ritchie, Robert

80

Soraa Is Optimizing the Use of Non-Polar and Semi-Polar Substrates to Improve Emitter Efficiency Under High-Current Operation  

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

One of the biggest remaining technological hurdles for LED lighting, efficiency droop is the term given to the rapid drop-off in efficiency as the driving current is increased. Since higher...

Note: This page contains sample records for the topic "high apparent hurdle" 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

Techniques of High Performance Reservoir Simulation for Unconventional Challenges  

E-Print Network (OSTI)

48 offshore Alaska 2010 5 high performance computing, execution of compositional simulation in parallel seems to be the apparently feasible way to tackle its computational demand. Although running reservoir simulation in parallel sounds extremely... attractive, developing an efficient parallel reservoir simulator is far more challenging than developing the underlying serial reservoir simulator. For decades there have remained many open problems associated with high performance computing and reservoir...

Wang, Yuhe

2013-12-05T23:59:59.000Z

82

2009 Spring : Highly Distinguished Honors Highly Distinguished  

E-Print Network (OSTI)

Armstrong Anna P Highly Distinguished Armstrong Jack Ray Highly Distinguished Armstrong Sarah Rose Highly

Kasman, Alex

83

Apparent Double SiO Maser Sources  

Science Journals Connector (OSTI)

......to 3 Jy with four 20-m antennas (Miyoshi 1998, a poster paper at JAS meeting). The double SiO sources found...Research (C) (No. 10640238) of the Ministry of Education, Science, Sports and Culture. One of authors (SD) received......

Shuji Deguchi; Takahiro Fujii; Hideyuki Izumiura; Shigeru Matsumoto; Yoshikazu Nakada; Peter R. Wood; Issei Yamamura

1999-06-01T23:59:59.000Z

84

Apparent superluminal expansion in Cygnus X-3  

Science Journals Connector (OSTI)

......slightly weaker with a peak of 180 mJy. The light curves clearly showed that the source...motion in the jets of quasars was the `Christmas tree effect' model (Dent 1972; Scheuer...has been proposed to explain the X-ray light curve (Kafuku et al. 1994) and would......

S. J. Newell; M. A. Garrett; R. E. Spencer

1998-01-01T23:59:59.000Z

85

The concept of “apparent” Compression Index  

Science Journals Connector (OSTI)

One-dimensional consolidation tests are often performed without accurate control of the initial degree of saturation, since most commercially used testing apparatuses do not permit back-pressuring. As a result...

M. Bardanis; M. Kavvadas

2005-01-01T23:59:59.000Z

86

High Tech High Chula Vista  

Chula Vista, CA High Tech High Chula Vista is a public charter school serving 550 students in grades 9 to 12 with an approach rooted in project-based learning. The school fosters student engagement by knowing students well, tapping into student experience and interests, and building a strong sense of community. Through internships and projects based in the community, students collaborate with adults on work with meaning that extends well beyond the school walls.

87

Water Supply Challenges in Cities as a Result of Urbanization: Analyzing the Hurdles of Achieving Universal Water Access in Kampala  

E-Print Network (OSTI)

. Interviewed by Greg Felter [in person] Ampthill, UK, 5 June. Cross, P. and Morel, A. n.d.. Pro-Poor Strategies for Urban Water Supply and Sanitation Services Delivery in Africa. [report] Nairobi: The World Bank, pp. 1-8 Dimanin, P. 2012. Exploring... Corporation (NWSC) (Alabaster, 2013). 1.1. Water Access Goals Improving Water, Sanitation and Hygiene (WASH) facilities is a critical goal of the UN, which created the target to halve the overall proportion of people without sustainable access to safe...

Felter, Greg

2014-07-09T23:59:59.000Z

88

High energy and high excitement  

Science Journals Connector (OSTI)

......definite, stream of energy. Most previous optical...If there is a slower car in front on a highway...result, which are akin to car collisions. These gigantic clouds of high-energy electrons, now seen...outcrops. However, an alternative possibility is that the......

Peter Bond

2001-02-01T23:59:59.000Z

89

High-performance Si microwire photovoltaics  

SciTech Connect

Crystalline Si wires, grown by the vapor–liquid–solid (VLS) process, have emerged as promising candidate materials for low-cost, thin-film photovoltaics. Here, we demonstrate VLS-grown Si microwires that have suitable electrical properties for high-performance photovoltaic applications, including long minority-carrier diffusion lengths (L{sub n} ? 30 µm) and low surface recombination velocities (S ? 70 cm·s{sup ?1}). Single-wire radial p–n junction solar cells were fabricated with amorphous silicon and silicon nitride surface coatings, achieving up to 9.0% apparent photovoltaic efficiency, and exhibiting up to ~600 mV open-circuit voltage with over 80% fill factor. Projective single-wire measurements and optoelectronic simulations suggest that large-area Si wire-array solar cells have the potential to exceed 17% energy-conversion efficiency, offering a promising route toward cost-effective crystalline Si photovoltaics.

Kelzenberg, Michael D.; Turner-Evans, Daniel B.; Putnam, Morgan C.; Boettcher, Shannon W.; Briggs, Ryan M.; Baek, Jae Y; Lewis, Nathan S.; Atwater, Harry A.

2011-01-01T23:59:59.000Z

90

High School Teams 2015  

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

School Salem, OR McNary High School Keizer, OR Mountain View High School Vancouver, WA North Bend High School North Bend, OR North Medford High School Medford, OR Olympia High...

91

High temperature intermetallic binders for HVOF carbides  

SciTech Connect

Gas turbines technology has a long history of employing the desirable high temperature physical attributes of ceramic-metallic (cermet) materials. The most commonly used coatings incorporate combinations of WC-Co and Cr{sub 3}C{sub 2}-NiCr, which have also been successfully utilized in other non-turbine coating applications. Increased turbine operating temperatures and other high temperature service conditions have made apparent the attractive notion of increasing the temperature capability and corrosion resistance of these coatings. In this study the intermetallic binder NiAl has been used to replace the cobalt and NiCr constituents of conventional WC and Cr{sub 3}C{sub 2} cermet powders. The composite carbide thermal spray powders were fabricated for use in the HVOF coating process. The structure of HVOF deposited NiAl-carbide coatings are compared directly to the more familiar WC-Co and Cr{sub 3}C{sub 2}-NiCr coatings using X-ray diffraction, back-scattered electron imaging (BEI) and electron dispersive spectroscopy (EDS). Hardness variations with temperature are reported and compared between the NiAl and Co/NiCr binders.

Shaw, K.G. [Xform, Inc., Cohoes, NY (United States); Gruninger, M.F.; Jarosinski, W.J. [Praxair Specialty Powders, Indianapolis, IN (United States)

1994-12-31T23:59:59.000Z

92

Characteristics and techniques of successful high-technology project managers  

Science Journals Connector (OSTI)

Despite a plethora of tools, technology and software, successful management of big science and engineering projects remains problematic, with many imperfect project outcomes. While much research focuses on management processes, characteristics of high-tech mega-project managers themselves are less well explored. What are the personal and professional attributes, skills and exemplar initiatives that are ingredients in project success? In this paper literature from the last 30 years is consulted alongside fieldwork results from several current, large, engineering and science projects in Europe and Australia. In particular, high-tech project manager success traits and initiatives are examined and discussed. Beyond personal traits ? some obvious, some not ? positive correlations of success are apparent around project and team management attributes, including the use of task forces, information management, a mission assurance mindset, and approaches to project complexity. The role of codified knowledge (the PMBOK® Guide) is examined, and suggestions offered for practical application of the study outcomes.

Philip Crosby

2012-01-01T23:59:59.000Z

93

High Temperatures & Electricity Demand  

E-Print Network (OSTI)

High Temperatures & Electricity Demand An Assessment of Supply Adequacy in California Trends.......................................................................................................1 HIGH TEMPERATURES AND ELECTRICITY DEMAND.....................................................................................................................7 SECTION I: HIGH TEMPERATURES AND ELECTRICITY DEMAND ..........................9 BACKGROUND

94

A Cell-Based High-Throughput Screen for Novel Chemical Inducers of Fetal Hemoglobin for Treatment of Hemoglobinopathies  

E-Print Network (OSTI)

treatment for sickle cell disease (SCD) is increased fetal hemoglobin (HbF). Identification of a drug specific for inducing c-globin expression in pediatric and adult patients, with minimal off-target effects, continues to be an elusive goal. One hurdle has..., Kansas, United States of America ¤c Current address: SRI International, Harrisonburg, Virginia, United States of America Introduction Sickle cell disease (SCD) is the most common monogenetic disease diagnosed in the United States, affecting approximately...

Peterson, Kenneth R.; Costa, Flá via C.; Fedosyuk, Halyna; Neades, Renee Y.; Chazelle, Allen M.; Zelenchuk, Lesya; Fonteles, Andrea H.; Dalal, Parmita; Roy, Anuradha; Chaguturu, Rathnam; Li, Biaoru; Pace, Betty S.

2014-09-16T23:59:59.000Z

95

High Performance Networks for High Impact Science  

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

was printed on recycled paper. (800) High-Performance Networks for High-Impact Science Report of the August 13-15, 2002, Workshop Conducted by the Office of Advanced...

96

Containment at the Source during Waste Volume Reduction of Large Radioactive Components Using Oxylance High-Temperature Cutting Equipment - 13595  

SciTech Connect

As a waste-volume reduction and management technique, highly contaminated Control Element Drive Mechanism (CEDM) housings were severed from the Reactor Pressure Vessel Head (RPVH) inside the San Onofre Unit 2 primary containment utilizing Oxylance high-temperature cutting equipment and techniques. Presented are relevant data concerning: - Radiological profiles of the RPVH and individual CEDMs; - Design overviews of the engineering controls and the specialized confinement housings; - Utilization of specialized shielding; - Observations of apparent metallurgical-contamination coalescence phenomena at high temperatures resulting in positive control over loose-surface contamination conditions; - General results of radiological and industrial hygiene air sampling and monitoring; - Collective dose and personnel contamination event statistics; - Lessons learned. (author)

Keeney, G. Neil [Health Physicist, HazMat CATS, LLC (United States)] [Health Physicist, HazMat CATS, LLC (United States)

2013-07-01T23:59:59.000Z

97

High-Tech Halloween  

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High-Tech Halloween Catch an Event Events Happening Now Events Calendar High-Tech Halloween Lifelong Learning Mailing List 70th Events Lectures invisible utility element High-Tech...

98

High Energy Nuclear Events  

Science Journals Connector (OSTI)

......research-article Articles High Energy Nuclear Events Enrico Fermi Institute...Distribution of Pions produced in High Energy Nuclear Collisions Yoshihiro Yamamoto...Possible Interpretation of High Energy Nuclear Events Nobuo Yajima, Shuji Takagi......

Enrico Fermi

1950-07-01T23:59:59.000Z

99

High-frequency, high-intensity photoionization  

Science Journals Connector (OSTI)

Two analytical methods for computing ionization by high-frequency fields are compared. Predicted ionization rates compare well, but energy predictions for the onset of ionization...

Reiss, H R

1996-01-01T23:59:59.000Z

100

High School Testing  

E-Print Network (OSTI)

The High School Testing Program has been suspended. Jerry Woodward High School Testing Program Mathematical Sciences Building 150 N. University Street

Note: This page contains sample records for the topic "high apparent hurdle" 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

HIGH TEMPERATURE REMOVAL OF H{sub 2}S FROM COAL GASIFICATION PROCESS STREAMS USING AN ELECTROCHEMICAL MEMBRANE SYSTEM  

SciTech Connect

A bench scale set-up was constructed to test the cell performance at 600-700 C and 1 atm. The typical fuel stream inlet proportions were 34% CO, 22% CO{sub 2}, 35% H{sub 2}, 8% H{sub 2}O, and 450-2000 ppm H{sub 2}S. The fundamental transport restrictions for sulfur species in an electrochemical cell were examined. Temperature and membrane thickness were varied to examine how these parameters affect the maximum flux of H{sub 2}S removal. It was found that higher temperature allows more sulfide species to enter the electrolyte, thus increasing the sulfide flux across the membrane and raising the maximum flux of H{sub 2}S removal. The results identify sulfide diffusion across the membrane as the rate-limiting step in H{sub 2}S removal. The maximum H{sub 2}S removal flux of 1.1 x 10-6 gmol H{sub 2}S min{sup -1} cm{sup -2} (or 3.5 mA cm{sup -2}) was obtained at 650 C, with a membrane that was 0.9 mm thick, 36% porous, and had an estimated tortuosity of 3.6. Another focus of this thesis was to examine the stability of cathode materials in full cell trials. A major hurdle that remains in process scale-up is cathode selection, as the lifetime of the cell will depend heavily on the lifetime of the cathode material, which is exposed to very sour gas. Materials that showed success in the past (i.e. cobalt sulfides and Y{sub 0.9}Ca{sub 0.1}FeO{sub 3}) were examined but were seen to have limitations in operating environment and temperature. Therefore, other novel metal oxide compounds were studied to find possible candidates for full cell trials. Gd{sub 2}TiMoO{sub 7} and La{sub 0.7}Sr{sub 0.3}VO{sub 3} were the compounds that retained their structure best even when exposed to high H{sub 2}S, CO{sub 2}, and H{sub 2}O concentrations.

Jack Winnick; Meilin Liu

2003-06-01T23:59:59.000Z

102

high algae diversity  

Science Journals Connector (OSTI)

high algae diversity ? Vergesellschaftung f mit mehreren Algenarten oder unterschiedlichen Algengattungen

2014-08-01T23:59:59.000Z

103

Modelling of High-Chromia Refractory Spalling in Slagging Coal Gasifiers  

SciTech Connect

The economic viability of converting coal into clean burning liquid fuels in slagging coal gasifiers is compromised by the limited service lifetime of hot-face refractories. One of the most severe refractory degradation mechanisms is spalling, which can occur by either volume expansion phenomena (compressive stresses) or by volume shrinkage phenomena (tensile stresses). A volume shrinkage model is benchmarked to high-chromia refractory material properties and performance under gasifier operating conditions. The model is found to be appropriate for first order estimates of gasifier refractory lifetime when the apparent diffusivity of volatized Cr in the refractory includes the effects of slag-filled pores and cracks.

Williford, Rick E.; Johnson, Kenneth I.; Sundaram, S. K.

2008-10-31T23:59:59.000Z

104

Experimental study of the density and derived (excess, apparent, and partial molar volumes) properties of binary water + ethanol and ternary water + ethanol + lithium nitrate mixtures at temperatures from 298 K to 448 K and pressures up to 40 MPa  

Science Journals Connector (OSTI)

Abstract Densities of binary water + ethanol and ternary water + ethanol + LiNO3 mixtures have been measured over the temperature range from 298 K to 448 K and at pressures up to 40 MPa using the constant-volume piezometer immersed in a precision liquid thermostat. The measurements for water + ethanol mixture were made for four compositions of 0.0163, 0.0343, 0.0730, and 0.0946 mol fraction of ethanol. The measurements for thernary water + ethanol + LiNO3 mixtures were performed in the same temperature and pressure ranges for twelve concentrations. The combined expanded uncertainty of the density, pressure, temperature, and concentration measurements at the 95% confidence level with a coverage factor of k = 2 is estimated to be 0.06%, 0.05%, 20 mK, and 0.015%, respectively. The derived volumetric properties such as excess ( V m E ), apparent ( V ? ), and partial ( V ¯ 2 ? ) molar volumes were calculated using the measured values of density for the binary water + ethanol mixture and for pure water and ethanol. The small and negative values of excess molar volume for the mixtures were found at all experimental temperatures, pressures, and over the entire concentration range. The excess molar volume minimum is found at concentration about 0.4 mol fraction of 1-propanol. The concentration minimum of the derived apparent molar volumes V ? near 2 mol kg?1 (dilute mixture) was observed.

I.M. Abdulagatov; Lala A. Akhmedova-Azizova; N.D. Azizov

2014-01-01T23:59:59.000Z

105

High Temperature Structural Foam  

Science Journals Connector (OSTI)

The Aerospace Industry is experiencing growing demand for high performance polymer foam. The X-33 program needs structural foam insulation capable of retaining its strength over a wide range of environmental conditions. The High Speed Research Program ...

Weiser Erik S.; Baillif Faye F.; Grimsley Brian W.; Marchello Joseph M.

1998-05-01T23:59:59.000Z

106

A Natural Gas, High Compression Ratio, High Efficiency ICRE ...  

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

A Natural Gas, High Compression Ratio, High Efficiency ICRE A Natural Gas, High Compression Ratio, High Efficiency ICRE Using natural gas and gasoline modeling, indications are...

107

Large-dimension, high-ZT Thermoelectric Nanocomposites for High...  

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

Large-dimension, high-ZT Thermoelectric Nanocomposites for High-Power High-efficiency Waste Heat Recovery for Electricity Generation Large-dimension, high-ZT Thermoelectric...

108

Energy Storage Testing and Analysis High Power and High Energy...  

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

Testing and Analysis High Power and High Energy Development Energy Storage Testing and Analysis High Power and High Energy Development 2009 DOE Hydrogen Program and Vehicle...

109

High Energy Physics  

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

Basic Energy Science Biological and Environmental Research Fusion Energy Sciences High Energy Physics Nuclear Physics Advanced Scientific Computing Research Pioneering...

110

High Performance Computing in  

E-Print Network (OSTI)

High Performance Computing in Bioinformatics Thomas Ludwig (t.ludwig@computer.org) Ruprecht PART I: High Performance Computing Thomas Ludwig PART II: HPC Computing in Bioinformatics Alexandros #12;© Thomas Ludwig, Alexandros Stamatakis, GCB'04 3 PART I High Performance Computing Introduction

Stamatakis, Alexandros

111

Thermodynamic properties of hydrocarbon liquids at high pressures and temperatures  

SciTech Connect

Understanding the organic/inorganic interface in the Earth's crust requires values of the thermodynamic properties of hydrocarbon species in crude oil, coal, and natural gas at elevated temperatures and pressures. Values of the apparent standard partial molal Gibbs free energies and enthalpies of formation and the standard partial molal entropies and heat capacities of these organic species can be computed as a function of temperature at 1 bar using the equations of state adopted by Helgeson et al (1991). The pressure dependence of the thermodynamic properties can be calculated from a modified version of the Parameters From Group Contributions (PFGC) equation of state. To improve the accuracy of these predictions, critical evaluation of high-pressure density experiments reported in the literature was used in the present study to characterize b[sub j] as a function of pressure and temperature. The revised PFGC equation of state permits accurate calculation of the standard partial molal volumes of the major hydrocarbon species in the aliphatic, aromatic, and naphthenic fractions of crude oil, as well as fatty acids, phenols, and naphthenic acids at temperatures and pressures to 500 C and 5 kbar. Combining the revised PFGC equation of state and parameters with the standard partial molal properties of these species at one bar and those of aqueous species and minerals permits calculation of the apparent standard partial molal Gibbs Free energies of reaction, and thus equilibrium constants for a wide variety of chemical equilibria among organic liquids, solids, and gases, aqueous species, and minerals at temperatures and pressures characteristic of both diagenetic and low-grade metamorphic processes in the Earth's crust.

Aagaard, P. (Univ. of Oslo (Norway). Dept. of Geology); Oelkers, E.H. (Univ. Paul Sabatier, Toulouse (France). Lab. de Geochimie); Helgeson, H.C. (Univ. of California, Berkeley, CA (United States). Dept. of Geology and Geophysics)

1992-01-01T23:59:59.000Z

112

High Performance Computing  

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

Information Science, Computing, Applied Math » Information Science, Computing, Applied Math » High Performance Computing High Performance Computing Providing world-class high performance computing capability that enables unsurpassed solutions to complex problems of strategic national interest Gary Grider High Performance Computing Division Leader Randal Rheinheimer High Performance Computing Deputy Division Leader Contact Us Carol Hogsett Student/Internship Opportunities Email Division Office Email Managing world-class supercomputing centers Powerall simulations modeling Read caption + The Powerwall is used by LANL scientists to view objects and processes in 3D. High Performance Computing video 13:01 Gary Grider, HPC Divison Leader The High Performance Computing (HPC) Division supports the Laboratory mission by managing world-class Supercomputing Centers.

113

Brookhaven High Energy Physics  

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

High-Energy Physics High-Energy Physics High-energy physicists probe the properties and behavior of the most elementary particles in the universe. At the Alternating Gradient Synchrotron (AGS), they perform experiments of unique sensitivity using high-intensity, intermediate-energy beams. The AGS currently provides the world's most intense high-energy proton beam. It is also the world's most versatile accelerator, accelerating protons, polarized protons, and heavy ions to near the speed of light. Magnet system at Brookhaven used to measure the magnetic moment of the muon. Important discoveries in high-energy physics were made at the AGS within the last decade. An international collaboration, including key physicists from Brookhaven, performed a very high-precision measurement of a property

114

High resolution, high speed ultrahigh vacuum microscopy  

SciTech Connect

The history and future of transmission electron microscopy (TEM) is discussed as it refers to the eventual development of instruments and techniques applicable to the real time in situ investigation of surface processes with high resolution. To reach this objective, it was necessary to transform conventional high resolution instruments so that an ultrahigh vacuum (UHV) environment at the sample site was created, that access to the sample by various in situ sample modification procedures was provided, and that in situ sample exchanges with other integrated surface analytical systems became possible. Furthermore, high resolution image acquisition systems had to be developed to take advantage of the high speed imaging capabilities of projection imaging microscopes. These changes to conventional electron microscopy and its uses were slowly realized in a few international laboratories over a period of almost 40 years by a relatively small number of researchers crucially interested in advancing the state of the art of electron microscopy and its applications to diverse areas of interest; often concentrating on the nucleation, growth, and properties of thin films on well defined material surfaces. A part of this review is dedicated to the recognition of the major contributions to surface and thin film science by these pioneers. Finally, some of the important current developments in aberration corrected electron optics and eventual adaptations to in situ UHV microscopy are discussed. As a result of all the path breaking developments that have led to today's highly sophisticated UHV-TEM systems, integrated fundamental studies are now possible that combine many traditional surface science approaches. Combined investigations to date have involved in situ and ex situ surface microscopies such as scanning tunneling microscopy/atomic force microscopy, scanning Auger microscopy, and photoemission electron microscopy, and area-integrating techniques such as x-ray photoelectron spectroscopy, ultraviolet photoelectron spectroscopy, Auger electron spectroscopy, low-energy electron diffraction, temperature programmed desorption, high-resolution electron energy-loss and Fourier-transform infrared spectroscopies, and others. Material systems ranging from atomic layers of metals and semiconductors to biology related depositions are being investigated. In the case of biological materials, however, strict limitations to high-resolution applications are imposed by electron radiation damage considerations.

Poppa, Helmut [National Center for Electron Microscopy, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States)

2004-09-01T23:59:59.000Z

115

Refrigeration Recovery for Experiment Hall High Target Loads  

SciTech Connect

The Qweak experiment at Jefferson Lab (JLab) is a 3000 W hydrogen target scheduled for the summer of 2010 and running for two years until the planned shut-down for 12GeV. The End Station Refrigerator (ESR) supports the three experiment halls, two of which may normally have a hydrogen target. The refrigerator for the ESR is a CTI/Helix 1500 W 4.5-K refrigerator nominally capable of supporting a 1250 W target load at 12 bar and 15-K (plus 1100 W of 4.5-K refrigeration). As such, this refrigerator is not capable of supporting the Qweak experiment target load in its present condition. Additionally, since the installation of an ambient air vaporizer for a single use, two week run duration of a high target load in the summer of 2003 there has been a consistent usage of the Central Helium Liquefier’s (CHL’s) 3 bar 4.5-K helium, supplied via an existing transfer-line to the ESR, for other high target loads. By the fall of 2004, it was apparent that this continued use of CHL’s supercritical helium was routinely being sought by the hall experimenters. As such, a method of refrigeration recovery was proposed to reduce the support required of CHL for these high target loads, including the anticipated Qweak experiment, while utilizing the recovered CHL refrigeration from the target to increase ESR’s 12 bar 15-K capacity.

Peter Knudsen, Venkatarao Ganni, Errol Yuksek, Jonathan Creel

2010-04-01T23:59:59.000Z

116

Infinitesimal deformations of logarithmic connections Apparent singularities of differential equations  

E-Print Network (OSTI)

for w = w(z) dmw dzm - R1(z) dm-1w dzm-1 - · · · - Rm(z)w = 0, where Rk(z) = Pk (z) Qk (z) are rational

Saito, Masa-Hiko

117

Impact of Particle Generation Method on the Apparent Hygroscopicity...  

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

with acidic gases CaCO3 can be converted to soluble hygroscopic products including CaCl2 and Ca(NO3)2, and sparingly soluble, non-hygroscopic products including CaSO4 and...

118

Failure Stress and Apparent Elastic Modulus of Diesel Particulate...  

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

Elastic Modulus of Diesel Particulate Filter Ceramics Three established mechanical test specimen geometries and test methods for brittle materials are adapted to DPF...

119

Manipulated into giving: when parasitism drives apparent or incidental altruism  

Science Journals Connector (OSTI)

...UK: Cambridge University Press. 25 Strassmann, JE , OM Gilbert, and DC Queller. 2011 Kin discrimination and cooperation...x ) 50 Kreft, J.-U . 2004 Biofilms promote altruism. Microbiology 150, 2751-2760. 10.1099/mic.0.26829-0 ( doi...

2013-01-01T23:59:59.000Z

120

APPARENT GROWTH OF YELLOWFIN TUNA FROM THE EASTERN ATLANTIC OCEAN  

E-Print Network (OSTI)

1286, Pointe-Noire, Republic of Congo. a Southwest Fisheries Center, National Marine Fish- eries Coast; Dakar, Senegal; and Pointe-Noire, Congo-and the IATTC scientists sampled the American catches

Note: This page contains sample records for the topic "high apparent hurdle" 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

Rate and apparent quantum yield of photodissolution of sedimentary ...  

Science Journals Connector (OSTI)

... Employment | Education | Meetings | Policy | Publications | Students | Forms | Search Association for the Sciences of Limnology and Oceanography © 2014.

122

High Precision Measurements Using High Frequency Signals  

E-Print Network (OSTI)

Generalized lock-in amplifiers use digital cavities with Q-factors as high as 5X10^8. In this letter, we show that generalized lock-in amplifiers can be used to analyze microwave (giga-hertz) signals with a precision of few tens of hertz. We propose that the physical changes in the medium of propagation can be measured precisely by the ultra-high precision measurement of the signal. We provide evidence to our proposition by verifying the Newton's law of cooling by measuring the effect of change in temperature on the phase and amplitude of the signals propagating through two calibrated cables. The technique could be used to precisely measure different physical properties of the propagation medium, for example length, resistance, etc. Real time implementation of the technique can open up new methodologies of in-situ virtual metrology in material design.

Jin, Aohan; Sakurai, Atsunori; Liu, Liang; Edman, Fredrik; Öwall, Viktor; Pullerits, Tonu; Karki, Khadga J

2014-01-01T23:59:59.000Z

123

High Performance New Construction  

E-Print Network (OSTI)

Funding for Efficient New Buildings through Integrated Project Delivery and High Performance Design-Build Case Study Rolling Plains New Medical Office Building Michael Flores McKinstry mflores@mckinstry.com 469-789-9920 1 ESL-KT-13-12-40 CATEE..., San Antonio, Texas Dec. 16-18 Objectives • Explain how High Performance Design Build / Integrated Project Delivery (HPDB/IPD) differs from alternative project delivery methods (and why it is usually better!) • Identify the key participants in High...

Flores, M.

2013-01-01T23:59:59.000Z

124

High-Tc Superconductor  

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

and Stanford Synchrotron Radiation Laboratory, Stanford University, Stanford, CA 94305 High-temperature superconductors (HTSC's), following their remarkable discovery in 1986,...

125

High Energy Physics  

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

Large Scale Production Computing and Storage Requirements for High Energy Physics: Target 2017 HEPlogo.jpg The NERSC Program Requirements Review "Large Scale Computing and Storage...

126

.NET High Performance Computing.  

E-Print Network (OSTI)

?? Graphics Processing Units (GPUs) have been extensively applied in the High Performance Computing (HPC) community. HPC applications require additional special programming environments to improve… (more)

Ou, Hsuan-Hsiu

2012-01-01T23:59:59.000Z

127

High coking value pitch  

SciTech Connect

A high coking value pitch prepared from coal tar distillate and has a low softening point and a high carbon value while containing substantially no quinoline insolubles is disclosed. The pitch can be used as an impregnant or binder for producing carbon and graphite articles.

Miller, Douglas J.; Chang, Ching-Feng; Lewis, Irwin C.; Lewis, Richard T.

2014-06-10T23:59:59.000Z

128

High-pressure crystallography  

Science Journals Connector (OSTI)

The history and development of high-pressure crystallography are briefly described and examples of structural transformations in compressed compounds are given. The review is focused on the diamond-anvil cell, celebrating its 50th anniversary this year, the principles of its operation and the impact it has had on high-pressure X-ray diffraction.

Katrusiak, A.

2007-12-21T23:59:59.000Z

129

High Reliability, High TemperatureThermoelectric Power Generation...  

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

Reliability, High TemperatureThermoelectric Power Generation Materials and Technologies High Reliability, High TemperatureThermoelectric Power Generation Materials and Technologies...

130

Piezoelectricity above the Curie temperature? Combining flexoelectricity and functional grading to enable high-temperature electromechanical coupling  

SciTech Connect

Most technologically relevant ferroelectrics typically lose piezoelectricity above the Curie temperature. This limits their use to relatively low temperatures. In this Letter, exploiting a combination of flexoelectricity and simple functional grading, we propose a strategy for high-temperature electromechanical coupling in a standard thin film configuration. We use continuum modeling to quantitatively demonstrate the possibility of achieving apparent piezoelectric materials with large and temperature-stable electromechanical coupling across a wide temperature range that extends significantly above the Curie temperature. With Barium and Strontium Titanate, as example materials, a significant electromechanical coupling that is potentially temperature-stable up to 900?°C is possible.

Mbarki, R. [Department of Mechanical Engineering, University of Houston, Houston, Texas 77204 (United States); Baccam, N. [Department of Mathematics, Southwestern University, Georgetown, Texas 78626 (United States); Dayal, Kaushik [Department of Civil and Environmental Engineering, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States); Sharma, P. [Department of Mechanical Engineering and Department of Physics, University of Houston, Houston, Texas 77204 (United States)

2014-03-24T23:59:59.000Z

131

TEST RESULTS OF HIGH TEMPERATURE STEAM/CO2 CO-ELECTROLYSIS IN A 10-CELL STACK  

SciTech Connect

High temperature coelectrolysis experiments with CO2 / H2O mixtures were performed in a 10-cell planar solid oxide stack. Results indicated that stack apparent ASR values were shown not to vary significantly between pure steam electrolysis and steam / CO2 coelectrolysis values. Product gas compositions measured via an online micro gas chromatograph (GC) showed excellent agreement to predictions obtained from a chemical equilibrium coelectrolysis model developed for this study. Experimentally determined open cell potentials and thermal neutral voltages for coelectrolysis compared favorably to predictions obtained from a chemical equilibrium coelectrolysis and energy balance model, also developed for this study.

James E. O'Brien; Joseph J. Hartvigsen

2007-06-01T23:59:59.000Z

132

Ion Heating and High-Energy-Particle Production by Ion-Cyclotron Heating in the Large Helical Device  

Science Journals Connector (OSTI)

Ion-cyclotron heating was applied to the Large Helical Device. When the proton-cyclotron resonance was near the saddle point of the magnetic field-strength plane, strong ion-cyclotron damping occurred. Under these conditions efficient plasma heating was achieved for more than one minute. A high-energy ion tail was observed, and the effective tail temperature was determined by a balance between the wave acceleration and the electron-drag relaxation. There was no apparent sign of particle orbit loss effect in the investigated density range of 0.8–1.3×1019 m-3.

T. Mutoh et al.

2000-11-20T23:59:59.000Z

133

Fourier transform mass spectrometry of high-mass biomolecules  

SciTech Connect

In this report the authors present an overview of the use of FTMS for the analysis of large biomolecules, with emphasis on recent developments in coupling ESI and MALDI with FTMS. A simple description of the principles of FTMS operation and experimental factors that are relevant to the examination of large molecules are also presented. The examples represent state-of-the-art capabilities of FTMS. On the basis of early reports, it is apparent that the applications of FTMS for the analysis of biopolymers will expand rapidly in the near future. Although many different types of mass analyzers are compatible with FAB, ESI, and MALDI, FTMS has exhibited particular potential for high sensitivity, accurate mass measurement, high-mass resolution, and structural characterization of large biopolymers. The recent results obtained with both ESI-FTMS and MALDI-FTMS are very exciting with respect to both fundamental advances in the capabilities of FTMS and potential applications in the biochemical laboratory. 63 refs., 6 figs., 1 tab.

Buchanan, M.V.; Hettich, R.L. (Oak Ridge National Lab., TN (United States))

1993-03-01T23:59:59.000Z

134

Asymptotic High Energy Total Cross Sections and Theories with Extra Dimensions  

E-Print Network (OSTI)

The rate at which cross sections grow with energy is sensitive to the presence of extra dimensions in a rather model-independent fashion. We examine how rates would be expected to grow if there are more spatial dimensions than 3 which appear at some energy scale, making connections with black hole physics and string theory. We also review what is known about the corresponding generalization of the Froissart-Martin bound and the experimental status of high energy hadronic cross sections which appear to saturate it up to the experimentally accessible limit of 100 TeV. We discuss how extra dimensions can be searched for in high energy cross section data and find no room for large extra dimensions in present data. Any apparent signatures of extra dimensions at the LHC may have to be interpreted as due to some other form of new physics.

J. Swain; A. Widom; Y. Srivastava

2014-10-05T23:59:59.000Z

135

Sandia National Laboratories: High-Pressure and High-Temperature...  

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

ClimateECClimateCarbon CaptureHigh-Pressure and High-Temperature Neutron Reflectometry Cell for Solid-Fluid Interface Studies High-Pressure and High-Temperature Neutron...

136

Creating high performance enterprises  

E-Print Network (OSTI)

How do enterprises successfully conceive, design, deliver, and operate large-scale, engineered systems? These large-scale projects often involve high complexity, significant technical challenges, a large number of diverse ...

Stanke, Alexis K. (Alexis Kristen), 1977-

2006-01-01T23:59:59.000Z

137

High pressure oxygen furnace  

DOE Patents (OSTI)

A high temperature high pressure oxygen furnace having a hybrid partially externally heated construction is disclosed. A metallic bar fabricated from an alloy having a composition of at least 45% nickel, 15% chrome, and 10% tungsten is utilized, the preferred alloy including 55% nickel, 22% chrome, 14% tungsten, 2% molybdenum, 3% iron (maximum) and 5% cobalt (maximum). The disclosed alloy is fabricated into 11/4 inch bar stock and has a length of about 17 inches. This bar stock is gun drilled for over 16 inches of its length with 0.400 inch aperture to define a closed high temperature, high pressure oxygen chamber. The opposite and closed end of the bar is provided with a small support aperture into which both a support and a thermocouple can be inserted. The closed end of the gun drilled bar is inserted into an oven, preferably heated by standard nickel chrome electrical elements and having a heavily insulated exterior. 5 figs.

Morris, D.E.

1992-07-14T23:59:59.000Z

138

High pressure oxygen furnace  

DOE Patents (OSTI)

A high temperature high pressure oxygen furnace having a hybrid partially externally heated construction is disclosed. A metallic bar fabricated from an alloy having a composition of at least 45% nickel, 15% chrome, and 10% tungsten is utilized (the preferred alloy including 55% nickel, 22% chrome, 14% tungsten, 2% molybdenum, 3% iron (maximum) and 5% cobalt (maximum). The disclosed alloy is fabricated into 11/4 inch bar stock and has a length of about 17 inches. This bar stock is gun drilled for over 16 inches of its length with 0.400 inch aperture to define a closed high temperature, high pressure oxygen chamber. The opposite and closed end of the bar is provided with a small support aperture into which both a support and a thermocouple can be inserted. The closed end of the gun drilled bar is inserted into an oven, preferably heated by standard nickel chrome electrical elements and having a heavily insulated exterior.

Morris, Donald E. (Kensington, CA)

1992-01-01T23:59:59.000Z

139

High Energy Solar Particles  

Science Journals Connector (OSTI)

6 May 1976 research-article High Energy Solar Particles J. J. Quenby Protons, heavy nuclei and electrons are seen to be emitted from solar flares with energies extending up to the relativistic region. Three different...

1976-01-01T23:59:59.000Z

140

High-Current Accelerators  

E-Print Network (OSTI)

F i g . 13 F i g . 14 A 48 ACCELERATOR F i g . 25 F i g . 16supply. Extrapolation of accelerator energy and current9 . A-48 high-current accelerator, low-velocity end. Fig.

Lawrence, Ernest O.

1955-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "high apparent hurdle" 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

High pressure counterflow CHF.  

E-Print Network (OSTI)

This is a report of the experimental results of a program in countercurrent flow critical heat flux. These experiments were performed with Freon 113 at 200 psia in order to model a high pressure water system. An internally ...

Walkush, Joseph Patrick

1975-01-01T23:59:59.000Z

142

High-voltage engineering  

E-Print Network (OSTI)

High-voltage engineering covers the application, the useful use and proper working of high voltages and high fields. Here we give some introductory examples, i.e., ‘septa’ and ‘kicker’ at the Large Hadron Collider (14 TeV), the Super Proton Synchrotron (450 GeV) and the Proton Synchrotron (26 GeV) accelerators as found at the European Orginization for Nuclear Research (CERN) today. We briefly cover the theoretical foundation (Maxwell equations) and aspects of numerical field simulation methods. Concepts relating to electrical fields, insulation geometry and medium and breakdown are introduced. We discuss ways of generating high voltages with examples of AC sources (50/60 Hz), DC sources, and pulse sources. Insulation and breakdown in gases, liquids, solids and vacuum are presented, including Paschen’s law (breakdown field and streamer breakdown). Applications of the above are discussed, in particular the general application of a transformer. We briefly discuss measurement techniques of partial disch...

Gaxiola, E

2006-01-01T23:59:59.000Z

143

High Performance Window Attachments  

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

High Performance Window High Performance Window Attachments D. Charlie Curcija Lawrence Berkeley National Laboratory dccurcija@lbl.gov 510-495-2602 April 4, 2013 2 | Building Technologies Office eere.energy.gov Purpose & Objectives Impact of Project: * Motivate manufacturers to make improvements in Window systems U-Factors, SHGC and daylighting utilization * Increase awareness of benefits from energy efficient window attachments Problem Statement: * A wide range of residential window attachments are available, but they have widely unknown

144

High temperature pressure gauge  

DOE Patents (OSTI)

A high temperature pressure gauge comprising a pressure gauge positioned in fluid communication with one end of a conduit which has a diaphragm mounted in its other end. The conduit is filled with a low melting metal alloy above the diaphragm for a portion of its length with a high temperature fluid being positioned in the remaining length of the conduit and in the pressure gauge.

Echtler, J. Paul (Pittsburgh, PA); Scandrol, Roy O. (Library, PA)

1981-01-01T23:59:59.000Z

145

High efficiency incandescent lighting  

DOE Patents (OSTI)

Incandescent lighting structure. The structure includes a thermal emitter that can, but does not have to, include a first photonic crystal on its surface to tailor thermal emission coupled to, in a high-view-factor geometry, a second photonic filter selected to reflect infrared radiation back to the emitter while passing visible light. This structure is highly efficient as compared to standard incandescent light bulbs.

Bermel, Peter; Ilic, Ognjen; Chan, Walker R.; Musabeyoglu, Ahmet; Cukierman, Aviv Ruben; Harradon, Michael Robert; Celanovic, Ivan; Soljacic, Marin

2014-09-02T23:59:59.000Z

146

High Efficiency, High Performance Clothes Dryer  

SciTech Connect

This program covered the development of two separate products; an electric heat pump clothes dryer and a modulating gas dryer. These development efforts were independent of one another and are presented in this report in two separate volumes. Volume 1 details the Heat Pump Dryer Development while Volume 2 details the Modulating Gas Dryer Development. In both product development efforts, the intent was to develop high efficiency, high performance designs that would be attractive to US consumers. Working with Whirlpool Corporation as our commercial partner, TIAX applied this approach of satisfying consumer needs throughout the Product Development Process for both dryer designs. Heat pump clothes dryers have been in existence for years, especially in Europe, but have not been able to penetrate the market. This has been especially true in the US market where no volume production heat pump dryers are available. The issue has typically been around two key areas: cost and performance. Cost is a given in that a heat pump clothes dryer has numerous additional components associated with it. While heat pump dryers have been able to achieve significant energy savings compared to standard electric resistance dryers (over 50% in some cases), designs to date have been hampered by excessively long dry times, a major market driver in the US. The development work done on the heat pump dryer over the course of this program led to a demonstration dryer that delivered the following performance characteristics: (1) 40-50% energy savings on large loads with 35 F lower fabric temperatures and similar dry times; (2) 10-30 F reduction in fabric temperature for delicate loads with up to 50% energy savings and 30-40% time savings; (3) Improved fabric temperature uniformity; and (4) Robust performance across a range of vent restrictions. For the gas dryer development, the concept developed was one of modulating the gas flow to the dryer throughout the dry cycle. Through heat modulation in a gas dryer, significant time and energy savings, combined with dramatically reduced fabric temperatures, was achieved in a cost-effective manner. The key design factor lay in developing a system that matches the heat input to the dryer with the fabrics ability to absorb it. The development work done on the modulating gas dryer over the course of this program led to a demonstration dryer that delivered the following performance characteristics: (1) Up to 25% reduction in energy consumption for small and medium loads; (2) Up to 35% time savings for large loads with 10-15% energy reduction and no adverse effect on cloth temperatures; (3) Reduced fabric temperatures, dry times and 18% energy reduction for delicate loads; and, (4) Robust performance across a range of vent restrictions.

Peter Pescatore; Phil Carbone

2005-03-31T23:59:59.000Z

147

High Beta Tokamaks  

SciTech Connect

Perhaps the ideal tokamak would have high {beta} ({beta} {approx}> 1) and classical confinement. Such a tokamak has not been found, and we do not know if one does exist. We have searched for such a possibility, so far without success. In 1990, we obtained analytic equilibrium solutions for large aspect ratio tokamaks at {beta} {approx} {Omicron}(1) [1]. These solutions and the extension at high {beta} poloidal to finite aspect ratio [2] provided a basis for the study of high {beta} tokamaks. We have shown that these configurations can be stable to short scale MHD modes [3], and that they have reduced neoclassical transport [4]. Microinstabilities (such as the {del}T{sub i} mode) seem to be stabilized at high {beta} [5] - this is due to the large local shear [3] and the magnetic well. We have some concerns about modes associated with the compressional branch which may appear at high {beta}. Bill Dorland and Mike Kotschenreuther have studied this issue and our concerns may be unfounded. It is certainly tantalizing, especially given the lowered neoclassical transport values, that these configurations could have no microinstabilities and, one could assume, no anomalous transport. Unfortunately, while this work is encouraging, the key question for high {beta} tokamaks is the stability to large scale kink modes. The MHD {beta} limit (Troyon limit) for kink modes at large aspect ratio is problematically low. There is ample evidence from computations that the limit exists. However, it is not known if stable equilibria exist at much higher {beta}--none have been found. We have explored this question in the asymptotic high {beta} poloidal limit. Unfortunately, we are unable to find stable equilibrium and also unable to show that they don't exist. The results of these calculations will be published when a more definitive answer is found.

Cowley, S.

1998-11-14T23:59:59.000Z

148

RECENT IMPROVEMENTS IN HIGH?FREQUENCY EDDY CURRENT CONDUCTIVITY SPECTROSCOPY  

Science Journals Connector (OSTI)

Due to its frequency?dependent penetration depth eddy current measurements are capable of mapping near?surface residual stress profiles based on the so?called piezoresistivity effect i.e. the stress?dependence of electric conductivity. To capture the peak compressive residual stress in moderately shot?peened (Almen 4–8A) nickel?base superalloys the eddy current inspection frequency has to go as high as 50–80 MHz. Recently we have reported the development of a new high?frequency eddy current conductivity measuring system that offers an extended inspection frequency range up to 80 MHz. Unfortunately spurious self? and stray?capacitance effects render the complex coil impedance variation with lift?off more nonlinear as the frequency increases which makes it difficult to achieve accurate apparent eddy current conductivity (AECC) measurements with the standard four?point linear interpolation method beyond 25 MHz. In this paper we will demonstrate that reducing the coil size reduces its sensitivity to capacitive lift?off variations which is just the opposite of the better known inductive lift?off effect. Although reducing the coil size also reduces its absolute electric impedance and relative sensitivity to conductivity variations a smaller coil still yields better overall performance for residual stress assessment. In addition we will demonstrate the benefits of a semi?quadratic interpolation scheme that together with the reduced lift?off sensitivity of the smaller probe coil minimizes and in some cases completely eliminates the sensitivity of AECC measurements to lift?off uncertainties. These modifications allow us to do much more robust measurements up to as high as 80–100 MHz with the required high relative accuracy of +/?0.1%.

Bassam A. Abu?Nabah; Peter B. Nagy

2008-01-01T23:59:59.000Z

149

Thermoelectrics Partnership: High Performance Thermoelectric...  

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

High Performance Thermoelectric Waste Heat Recovery System Based on Zintl Phase Materials with Embedded Nanoparticles Thermoelectrics Partnership: High Performance Thermoelectric...

150

High Performance Windows Volume Purchase: About the High Performance  

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

High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program to someone by E-mail Share High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Facebook Tweet about High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Twitter Bookmark High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Google Bookmark High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Delicious Rank High Performance Windows Volume Purchase: About the High Performance Windows Volume Purchase Program on Digg Find More places to share High Performance Windows Volume Purchase:

151

Alternative Fuels Data Center: High Occupancy Vehicle (HOV) and High  

Alternative Fuels and Advanced Vehicles Data Center (EERE)

High Occupancy Vehicle High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) Lane Exemption to someone by E-mail Share Alternative Fuels Data Center: High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) Lane Exemption on Facebook Tweet about Alternative Fuels Data Center: High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) Lane Exemption on Twitter Bookmark Alternative Fuels Data Center: High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) Lane Exemption on Google Bookmark Alternative Fuels Data Center: High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) Lane Exemption on Delicious Rank Alternative Fuels Data Center: High Occupancy Vehicle (HOV) and High Occupancy Toll (HOT) Lane Exemption on Digg Find More places to share Alternative Fuels Data Center: High

152

High Risk Plan  

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

Risk Plan Risk Plan John Bashista Melissa Rider Jeff Davis Timeline to date * OMB memo on Improving Government Acquisition issued July 29, 2009 - Review existing contracts and acquisition practices to save 7% of baseline contract spending (3.5% in FY 2010 and 3.5% in FY 2011) - Reduce high risk contracts by 10% the share of dollars obligated in FY2010 - Final plan was due and submitted on November 2, 2009 - OMB reviewed and requested revision Dec 23, 2009 - Revision submitted April 21, 2010 M&Os are an Issue * With respect to reductions in high risk contracting strategies, the M&O contracts was also a challenge since the opportunity to further influence competition and contract type was highly constrained. The Department had already competed approximately 85 percent of its M&O

153

HIGHLY AUTOMATED MACROMOLECULAR  

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

AUTOMATED MACROMOLECULAR AUTOMATED MACROMOLECULAR CRYSTALLOGRAPHY BEAMLINE (AMX) Group Leader: Dieter Schneider Proposal Team: M. Allaire 1 , L. Berman 1 , M. Chance 2 , W. Hendrickson 3 , A. Héroux 1 , J. Jakoncic 1 , A. Orville 1 , H. Robinson 1 , D. Schneider 1 , W. Shi 2 , A. Soares 1 , V. Stojanoff 1 , R. Sweet 1 1 Brookhaven National Laboratory, 2 Case Western Reserve University, 3 Columbia University MISSION APPLICATIONS AND CAPABILITIES ADDITIONAL INFORMATION * AMX at NSLS-II will provide structural biologists with ready access to an advanced macromolecular crystallography (MX) beamline for the elucidation of structure and function of macromolecular complexes. * Its high flux, tunable energy, and natively small focal spot will make it a crystallographer's preferred beamline. * Its high degree of automation will provide a high throughput

154

High resolution data acquisition  

DOE Patents (OSTI)

A high resolution event interval timing system measures short time intervals such as occur in high energy physics or laser ranging. Timing is provided from a clock (38) pulse train (37) and analog circuitry (44) for generating a triangular wave (46) synchronously with the pulse train (37). The triangular wave (46) has an amplitude and slope functionally related to the time elapsed during each clock pulse in the train. A converter (18, 32) forms a first digital value of the amplitude and slope of the triangle wave at the start of the event interval and a second digital value of the amplitude and slope of the triangle wave at the end of the event interval. A counter (26) counts the clock pulse train (37) during the interval to form a gross event interval time. A computer (52) then combines the gross event interval time and the first and second digital values to output a high resolution value for the event interval.

Thornton, Glenn W. (Los Alamos, NM); Fuller, Kenneth R. (Los Alamos, NM)

1993-01-01T23:59:59.000Z

155

High resolution data acquisition  

DOE Patents (OSTI)

A high resolution event interval timing system measures short time intervals such as occur in high energy physics or laser ranging. Timing is provided from a clock, pulse train, and analog circuitry for generating a triangular wave synchronously with the pulse train (as seen in diagram on patent). The triangular wave has an amplitude and slope functionally related to the time elapsed during each clock pulse in the train. A converter forms a first digital value of the amplitude and slope of the triangle wave at the start of the event interval and a second digital value of the amplitude and slope of the triangle wave at the end of the event interval. A counter counts the clock pulse train during the interval to form a gross event interval time. A computer then combines the gross event interval time and the first and second digital values to output a high resolution value for the event interval.

Thornton, G.W.; Fuller, K.R.

1993-04-06T23:59:59.000Z

156

High level nuclear waste  

SciTech Connect

The DOE Division of Waste Products through a lead office at Savannah River is developing a program to immobilize all US high-level nuclear waste for terminal disposal. DOE high-level wastes include those at the Hanford Plant, the Idaho Chemical Processing Plant, and the Savannah River Plant. Commercial high-level wastes, for which DOE is also developing immobilization technology, include those at the Nuclear Fuel Services Plant and any future commercial fuels reprocessing plants. The first immobilization plant is to be the Defense Waste Processing Facility at Savannah River, scheduled for 1983 project submission to Congress and 1989 operation. Waste forms are still being selected for this plant. Borosilicate glass is currently the reference form, but alternate candidates include concretes, calcines, other glasses, ceramics, and matrix forms.

Crandall, J L

1980-01-01T23:59:59.000Z

157

High Energy Neutrino Telescopes  

E-Print Network (OSTI)

This paper presents a review of the history, motivation and current status of high energy neutrino telescopes. Many years after these detectors were first conceived, the operation of kilometer-cubed scale detectors is finally on the horizon at both the South Pole and in the Mediterranean Sea. These new detectors will perhaps provide us the first view of high energy astrophysical objects with a new messenger particle and provide us with our first real glimpse of the distant universe at energies above those accessible by gamma-ray instruments. Some of the topics that can be addressed by these new instruments include the origin of cosmic rays, the nature of dark matter, and the mechanisms at work in high energy astrophysical objects such as gamma-ray bursts, active galactic nuclei, pulsar wind nebula and supernova remnants.

Hoffman, K D

2008-01-01T23:59:59.000Z

158

High Energy Neutrino Telescopes  

E-Print Network (OSTI)

This paper presents a review of the history, motivation and current status of high energy neutrino telescopes. Many years after these detectors were first conceived, the operation of kilometer-cubed scale detectors is finally on the horizon at both the South Pole and in the Mediterranean Sea. These new detectors will perhaps provide us the first view of high energy astrophysical objects with a new messenger particle and provide us with our first real glimpse of the distant universe at energies above those accessible by gamma-ray instruments. Some of the topics that can be addressed by these new instruments include the origin of cosmic rays, the nature of dark matter, and the mechanisms at work in high energy astrophysical objects such as gamma-ray bursts, active galactic nuclei, pulsar wind nebula and supernova remnants.

K. D. Hoffman

2008-12-18T23:59:59.000Z

159

High Temperature Superconductors  

Science Journals Connector (OSTI)

Abstract A brief review of the phenomenology of superconductivity, the distinction between type I and type II superconductors, and the application of type II superconductors is followed by a history of the theory of conventional superconductivity. Unconventional high-temperature superconductivity in the copper oxides is reviewed as a phenomenon occurring in narrow two-dimensional bands where the time for an electron transfer between like atoms is comparable to the period of an optical-mode lattice vibration. A family of iron pnictides containing layers of iron atoms may not require an alternative explanation of its high-temperature superconductivity.

J.B. Goodenough

2013-01-01T23:59:59.000Z

160

High strength alloys  

DOE Patents (OSTI)

High strength metal alloys are described herein. At least one composition of a metal alloy includes chromium, nickel, copper, manganese, silicon, niobium, tungsten and iron. System, methods, and heaters that include the high strength metal alloys are described herein. At least one heater system may include a canister at least partially made from material containing at least one of the metal alloys. At least one system for heating a subterranean formation may include a tubular that is at least partially made from a material containing at least one of the metal alloys.

Maziasz, Phillip James [Oak Ridge, TN; Shingledecker, John Paul [Knoxville, TN; Santella, Michael Leonard [Knoxville, TN; Schneibel, Joachim Hugo [Knoxville, TN; Sikka, Vinod Kumar [Oak Ridge, TN; Vinegar, Harold J [Bellaire, TX; John, Randy Carl [Houston, TX; Kim, Dong Sub [Sugar Land, TX

2010-08-31T23:59:59.000Z

Note: This page contains sample records for the topic "high apparent hurdle" 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

Highly Parallel Computation  

Science Journals Connector (OSTI)

...ofthe problem size. If the cost is low, the algorithm designer...grains because synchroni-zation costs would be too high with fine...computers known. They limit the cost ofsynchroni-zation and afford...Agency (DARPA) in 1984 (24). Benchmark studies on a prototype data...

Peter J. Denning; Walter F. Tichy

1990-11-30T23:59:59.000Z

162

High Power Cryogenic Targets  

SciTech Connect

The development of high power cryogenic targets for use in parity violating electron scattering has been a crucial ingredient in the success of those experiments. As we chase the precision frontier, the demands and requirements for these targets have grown accordingly. We discuss the state of the art, and describe recent developments and strategies in the design of the next generation of these targets.

Gregory Smith

2011-08-01T23:59:59.000Z

163

Chemistry at High Temperatures  

Science Journals Connector (OSTI)

...347 the condensed phase. Both cases are...show the opposite behavior. These predictions...vapors. Condensed phase B203 B + B203 02...complex silicates and hydrates in high-temperature...characterized by phase diagrams (derived...doubt that thou-sands of new chemical materials...

John L. Margrave

1962-02-02T23:59:59.000Z

164

Highly oxidized superconductors  

DOE Patents (OSTI)

Novel superconducting materials in the form of compounds, structures or phases are formed by performing otherwise known synthesis in a highly oxidizing atmosphere rather than that created by molecular oxygen at atmospheric pressure or below. This leads to the successful synthesis of novel superconducting compounds which are thermodynamically stable at the conditions under which they are formed. 16 figs.

Morris, D.E.

1994-09-20T23:59:59.000Z

165

High sensitivity accelerometers are  

E-Print Network (OSTI)

Integrated passive components Nanotube based solar cells High frequency ultrasound for nondestruc- tive investigation of organs and cells State-of-the-Art Equipment Keck SMIL is: A rapid prototyping center providing Lab has been key to the development of our product, which is based on Keck SMIL's PZT Solgel films

Lee, Dongwon

166

High Tc Superconductivity  

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

by C. Kim (SSRL), D. H. Lu (Stanford), K. M. Shen (Stanford) and Z.-X. Shen (Stanford/SSRL) by C. Kim (SSRL), D. H. Lu (Stanford), K. M. Shen (Stanford) and Z.-X. Shen (Stanford/SSRL) Extensive research efforts to study the novel electronic properties of high-Tc superconductors and their related materials by angle-resolved photoemission spectroscopy at a recently commissioned Beam Line 5-4 (led by Z.-X. Shen) continue to be successful, producing many important results. These results, which are highlighted by five articles recently published in Physical Review Letters and one in Science, brought our understanding steps closer to solving the mystery of the high-Tc superconductivity. With the development of the latest generation of ultra-high resolution electron spectrometers in the past few years, the technique of angle resolved photoemission spectroscopy (ARPES) has recently experienced a renaissance. Nowhere is this revolution more evident than in the study of the high-temperature superconductors, which more than a decade after their discovery, continue to defy theoretical explanation. Recent ARPES experiments performed at Beam Line 5-4 have led to critical new discoveries about the fundamental nature of these mysterious superconductors and are now changing the way that the physics community views these materials. An excellent benchmark for the huge leap in detector resolution and technology is the recent work on Sr2RuO4. Although it belongs to a slightly different family than the high- temperature superconductors, its exotic superconducting mechanism (Tc = 1K) and complex electronic structure make it itself a fascinating material. In the past, due to poor resolutions, ARPES studies on this material were in disagreement with theory and other experimental techniques.

167

Highly Insulating Windows - Cost  

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

Cost Cost The following is an estimate of the cost effective incremental cost of highly-insulating windows (U-factor=0.20 Btu/hr-ft2-F) compared to regular ENERGY STAR windows (U-factor 0.35 Btu/hr-ft2-F). Energy savings from lower U-factors were simulated with RESFEN over an assumed useful window life of 25 years. To determine the maximum incremental cost at which highly-insulating windows would still be cost-effective, we used a formula used by many utility companies to calculate the cost of saved energy from energy efficiency programs, based on the programs' cost and savings. We turned this formula around so that the cost of saved energy equals the present energy prices in the studied locations, whereas the program cost (the incremental cost of the windows) is the dependent variable. By entering 5%

168

High frequency reference electrode  

DOE Patents (OSTI)

A high frequency reference electrode for electrochemical experiments comprises a mercury-calomel or silver-silver chloride reference electrode with a layer of platinum around it and a layer of a chemically and electrically resistant material such as TEFLON around the platinum covering all but a small ring or halo' at the tip of the reference electrode, adjacent to the active portion of the reference electrode. The voltage output of the platinum layer, which serves as a redox electrode, and that of the reference electrode are coupled by a capacitor or a set of capacitors and the coupled output transmitted to a standard laboratory potentiostat. The platinum may be applied by thermal decomposition to the surface of the reference electrode. The electrode provides superior high-frequency response over conventional electrodes. 4 figs.

Kronberg, J.W.

1994-05-31T23:59:59.000Z

169

High temperature probe  

DOE Patents (OSTI)

A high temperature probe for sampling, for example, smokestack fumes, and is able to withstand temperatures of 3000.degree. F. The probe is constructed so as to prevent leakage via the seal by placing the seal inside the water jacket whereby the seal is not exposed to high temperature, which destroys the seal. The sample inlet of the probe is also provided with cooling fins about the area of the seal to provide additional cooling to prevent the seal from being destroyed. Also, a heated jacket is provided for maintaining the temperature of the gas being tested as it passes through the probe. The probe includes pressure sensing means for determining the flow velocity of an efficient being sampled. In addition, thermocouples are located in various places on the probe to monitor the temperature of the gas passing there through.

Swan, Raymond A. (Fremont, CA)

1994-01-01T23:59:59.000Z

170

Galaxies at High Redshifts  

E-Print Network (OSTI)

Several conclusions have been reached over the last few years concerning high-redshift galaxies: (1) The excess of faint blue galaxies is due to dwarf galaxies. (2) Star formation peaks at redshifts z ~1-2. (3) It appears to occur piecemeal in any given galaxy and there is no evidence for starbursting throughout a large ~10 kpc galaxy. (4) There is significant and sharp diminution in the number of L* spiral galaxies at redshifts 1high-redshift galaxies in universes with larger volumes per unit redshift, i.e., open or lambda models, which have lower deceleration parameters.

A. Yahil; K. M. Lanzetta; A. Fernandez-Soto

1998-03-05T23:59:59.000Z

171

Highly Insulating Window Technology  

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

Window Technology Window Technology Temperature differentials across a window, particularly with cold exterior environments in residential buildings, can lead to significant energy losses. Currently available low-emissivity coatings, gas-fills, and insulating frames provide significant energy savings over typical single or double glazed products. The EWC website provides information on how double glazed low-e gas-filled windows work as well as information on commercially available superwindows (three layer, multiple low-e coatings, high performance gas-fills). The next generation of highly insulating window systems will benefit from incremental improvements being made to current components (i.e. more insulating spacers and frame materials/designs, low-e coatings with improved performance properties). LBNL uses its experimental facilities and software tools to collaborate with window and glass industry representatives to better understand the impacts of new components on overall product performance.

172

National High Magnetic Field Laboratory - High B/T Program  

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

of experiments where needed. Instrumentation is available for studies of: Dillution refrigerator at the High BT Facility Equipment at the High BT Facility. magnetization...

173

High-Temperature-High-Volume Lifting for Enhanced Geothermal Systems  

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

High-Temperature-High-Volume Lifting for Enhanced Geothermal Systems presentation at the April 2013 peer review meeting held in Denver, Colorado.

174

Gorkov equations for a pseudogapped high-temperature superconductor  

Science Journals Connector (OSTI)

A phenomenological theory of superconductivity based on the two-body Cooperon propagator is presented. This theory takes the form of a modified Gorkov equation for the Green’s function and allows one to model the effect of local superconducting correlations and long-range phase fluctuations on the spectral properties of high-temperature superconductors, both above and below Tc. A model is proposed for the Cooperon propagator, which provides a simple physical picture of the pseudogap phenomenon, as well as insights into the doping dependence of the spectral properties. Numerical calculations of the density of states and spectral functions based on this model are also presented, and compared with the experimental tunneling (STM) and photoemission (ARPES) data. It is found, in particular, that the sharpness of the peaks in the density of states is related to the strength and the range of the superconducting correlations and that the apparent pseudogap in STM and ARPES can be different, although the underlying model is the same.

B. Giovannini and C. Berthod

2001-03-21T23:59:59.000Z

175

HighEnergy International  

E-Print Network (OSTI)

Jet Production at HERA Sascha Caron, I. Phys. Institut, RWTH Aachen High­Energy Physics r ) and dâ?? # e,i = # # n=1 # n s (µ r )C n (µ r ) # extract # s , pdfs? QCD Montpellier 2002, Sascha­jets above E T treshhold. DIS: find jets in ``Breit frame'': 2xP + q = 0 p r q g # maximal separation between

176

High speed door assembly  

SciTech Connect

This invention is comprised of a high speed door assembly, comprising an actuator cylinder and piston rods, a pressure supply cylinder and fittings, an electrically detonated explosive bolt, a honeycomb structured door, a honeycomb structured decelerator, and a structural steel frame encasing the assembly to close over a 3 foot diameter opening within 50 milliseconds of actuation, to contain hazardous materials and vapors within a test fixture.

Shapiro, C.

1991-12-31T23:59:59.000Z

177

High voltage pulse conditioning  

DOE Patents (OSTI)

Apparatus for conditioning high voltage pulses from particle accelerators in order to shorten the rise times of the pulses. Flashover switches in the cathode stalk of the transmission line hold off conduction for a determinable period of time, reflecting the early portion of the pulses. Diodes upstream of the switches divert energy into the magnetic and electrostatic storage of the capacitance and inductance inherent to the transmission line until the switches close.

Springfield, Ray M. (Sante Fe, NM); Wheat, Jr., Robert M. (Los Alamos, NM)

1990-01-01T23:59:59.000Z

178

High pressure ceramic joint  

DOE Patents (OSTI)

Many recuperators have components which react to corrosive gases and are used in applications where the donor fluid includes highly corrosive gases. These recuperators have suffered reduced life, increased service or maintenance, and resulted in increased cost. The present joint when used with recuperators increases the use of ceramic components which do not react to highly corrosive gases. Thus, the present joint used with the present recuperator increases the life, reduces the service and maintenance, and reduces the increased cost associated with corrosive action of components used to manufacture recuperators. The present joint is comprised of a first ceramic member, a second ceramic member, a mechanical locking device having a groove defined in one of the first ceramic member and the second ceramic member. The joint and the mechanical locking device is further comprised of a refractory material disposed in the groove and contacting the first ceramic member and the second ceramic member. The present joint mechanically provides a high strength load bearing joint having good thermal cycling characteristics, good resistance to a corrosive environment and good steady state strength at elevated temperatures.

Ward, Michael E. (Poway, CA); Harkins, Bruce D. (San Diego, CA)

1993-01-01T23:59:59.000Z

179

High pressure ceramic joint  

DOE Patents (OSTI)

Many recuperators have components which react to corrosive gases and are used in applications where the donor fluid includes highly corrosive gases. These recuperators have suffered reduced life, increased service or maintenance, and resulted in increased cost. The present joint when used with recuperators increases the use of ceramic components which do not react to highly corrosive gases. Thus, the present joint used with the present recuperator increases the life, reduces the service and maintenance, and reduces the increased cost associated with corrosive action of components used to manufacture recuperators. The present joint is comprised of a first ceramic member, a second ceramic member, a mechanical locking device having a groove defined in one of the first ceramic member and the second ceramic member. The joint and the mechanical locking device is further comprised of a refractory material disposed in the groove and contacting the first ceramic member and the second ceramic member. The present joint mechanically provides a high strength load bearing joint having good thermal cycling characteristics, good resistance to a corrosive environment and good steady state strength at elevated temperatures. 4 figures.

Ward, M.E.; Harkins, B.D.

1993-11-30T23:59:59.000Z

180

High Performance Computing School COMSC  

E-Print Network (OSTI)

High Performance Computing School COMSC This module aims to provide the students with fundamental knowledge and understanding of techniques associated with High Performance Computing and its practical' skills in analysing and evaluating High Performance Computing and will be structured around

Martin, Ralph R.

Note: This page contains sample records for the topic "high apparent hurdle" 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

High Performance Computing (HPC) Division  

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

HPC Division High Performance Computing (HPC) Division Providing world-class high performance computing capability that enables unsurpassed solutions to complex problems of...

182

High Temperature Membrane Working Group  

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

The High Temperature Membrane Working Group consists of government, industry, and university researchers interested in developing high temperature membranes for fuel cells.

183

LANL | Physics | High Energy Physics  

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

high energy physics frontiers as defined by the Department of Energy's Office of High Energy Physics. Exploring the intensity frontier On the trail of one of the greatest...

184

Determination of silica scale deposition rates and thresholds applied toward protection of injection reservoirs. Quarterly progress report, July 1--September 30, 1998  

SciTech Connect

The program objective aims to identify the highest temperature at which silica scale will develop from partially evaporated and significantly cooled geothermal liquid. The approach involves tracking deposition of silica scale by monitoring the apparent electrical conductivity of the geothermal liquid in an isolation chamber. A decrease in apparent conductivity occurs because silica deposited on electrode surfaces is less conductive than the geothermal liquid. The major technical hurdle is building a conductivity monitoring system that is sensitive enough to distinguish between no silica deposition and almost no silica deposition, while accounting for other factors which also affect conductivity, such as temperature and varying fluid composition.

NONE

1998-11-01T23:59:59.000Z

185

Self-Organized Networks and Lattice Effects in High Temperature Superconductors III: Dopant Internal Structure  

E-Print Network (OSTI)

The self-organized dopant percolative filamentary model, entirely orbital in character (no fictive spins), predicted the existence and even the ~ 3 nm diameters of gap nanodomains (discovered by STM) that amazed almost all theorists in this field. Here it explores the self-consistent and self-limiting coupling between dopant sites and gap character. It explains precursive magnetic effects and shows that they are caused by dopant ordering into loops at an onset temperature of order 2Tc. The ordered coupling of these loops by filamentary connectors is reflected by Debye-Waller factors, and it apparently leads to HTSC. The model also resolves the mystery of the vanishing isotope effect, and it explains the origin of the high-energy "waterfall" recently discovered by ARPES, as well as some overlooked infrared anomalies.

J. C. Phillips

2006-11-08T23:59:59.000Z

186

High School Students' Modeling Knowledge High School Students' Modeling Knowledge  

E-Print Network (OSTI)

High School Students' Modeling Knowledge High School Students' Modeling Knowledge David Fortus of the authors. #12;High School Students' Modeling Knowledge Abstract Modeling is a core scientific practice. This study probed the modeling knowledge of high school students who had not any explicit exposure

187

High temperature detonator  

DOE Patents (OSTI)

A detonator assembly is provided which is usable at high temperatures about 300.degree. C. A detonator body is provided with an internal volume defining an anvil surface. A first acceptor explosive is disposed on the anvil surface. A donor assembly having an ignition element, an explosive material, and a flying plate, are placed in the body effective to accelerate the flying plate to impact the first acceptor explosive on the anvil for detonating the first acceptor explosive. A second acceptor explosive is eccentrically located in detonation relationship with the first acceptor explosive to thereafter effect detonation of a main charge.

Johnson, James O. (Los Alamos, NM); Dinegar, Robert H. (Los Alamos, NM)

1988-01-01T23:59:59.000Z

188

Theoretical High Energy Physics  

SciTech Connect

we provide reports from each of the six faculty supported by the Department of Energy High Energy Physics Theory grant at Columbia University. Each is followed by a bibliography of the references cited. A complete list of all of the publications in the 12/1/2010-04/30/2014 period resulting from research supported by this grant is provided in the following section. The final section lists the Ph.D. dissertations based on research supported by the grant that were submitted during this period.

Christ, Norman H.; Weinberg, Erick J.

2014-07-14T23:59:59.000Z

189

High Performance Electrolyzers for Hybrid Thermochemical Cycles  

SciTech Connect

Extensive electrolyzer testing was performed at the University of South Carolina (USC). Emphasis was given to understanding water transport under various operating (i.e., temperature, membrane pressure differential and current density) and design (i.e., membrane thickness) conditions when it became apparent that water transport plays a deciding role in cell voltage. A mathematical model was developed to further understand the mechanisms of water and SO2 transport, and to predict the effect of operating and design parameters on electrolyzer performance.

Dr. John W. Weidner

2009-05-10T23:59:59.000Z

190

High-energy  

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

0 0 22. High-energy collider parameters HIGH-ENERGY COLLIDER PARAMETERS: e + e - Colliders (I) The numbers here were received from representatives of the colliders in late 1999 (contact C.G. Wohl, LBNL). Many of the numbers of course change with time, and only the latest values (or estimates) are given here; those in brackets are for coming upgrades. Quantities are, where appropriate, r.m.s. H and V indicate horizontal and vertical directions. Parameters for the defunct SPEAR, DORIS, PETRA, PEP, and TRISTAN colliders may be found in our 1996 edition (Phys. Rev. D54, 1 July 1996, Part I). VEPP-2M (Novosibirsk) VEPP-2000 ∗ (Novosibirsk) VEPP-4M (Novosibirsk) BEPC (China) DAΦNE (Frascati) Physics start date 1974 2001 1994 1989 1999 Maximum beam energy (GeV) 0.7 1.0 6 2.2 0.510 (0.75 max.) Luminosity (10 30 cm -2 s -1 ) 5 100 50 10 at 2 GeV 5 at 1.55 GeV 50(→500) Time between collisions (µs)

191

Highly Insulating Windows - Fram  

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

Frames Frames Research performed at the Norwegian University of Science and Technology and LBNL has identified various highly insulating frame solutions. A report was released in 2007 describing some of these frames. This document reports the findings of a market and research review related to state-of-the-art highly insulating window frames. The market review focuses on window frames that satisfy the Passivhaus requirements (window U-value less or equal to 0.8 W/m2K ), while other examples are also given in order to show the variety of materials and solutions that may be used for constructing window frames with a low thermal transmittance (U-value). The market search shows that several combinations of materials are used in order to obtain window frames with a low U-value. The most common insulating material seems to be Polyurethane (PUR), which is used together with most of the common structural materials such as wood, aluminum, and PVC.

192

High throughput optical scanner  

DOE Patents (OSTI)

A scanning apparatus is provided to obtain automated, rapid and sensitive scanning of substrate fluorescence, optical density or phosphorescence. The scanner uses a constant path length optical train, which enables the combination of a moving beam for high speed scanning with phase-sensitive detection for noise reduction, comprising a light source, a scanning mirror to receive light from the light source and sweep it across a steering mirror, a steering mirror to receive light from the scanning mirror and reflect it to the substrate, whereby it is swept across the substrate along a scan arc, and a photodetector to receive emitted or scattered light from the substrate, wherein the optical path length from the light source to the photodetector is substantially constant throughout the sweep across the substrate. The optical train can further include a waveguide or mirror to collect emitted or scattered light from the substrate and direct it to the photodetector. For phase-sensitive detection the light source is intensity modulated and the detector is connected to phase-sensitive detection electronics. A scanner using a substrate translator is also provided. For two dimensional imaging the substrate is translated in one dimension while the scanning mirror scans the beam in a second dimension. For a high throughput scanner, stacks of substrates are loaded onto a conveyor belt from a tray feeder.

Basiji, David A. (Seattle, WA); van den Engh, Gerrit J. (Seattle, WA)

2001-01-01T23:59:59.000Z

193

High Performance Window Retrofit  

SciTech Connect

The US Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy (EERE) and Traco partnered to develop high-performance windows for commercial building that are cost-effective. The main performance requirement for these windows was that they needed to have an R-value of at least 5 ft2 F h/Btu. This project seeks to quantify the potential energy savings from installing these windows in commercial buildings that are at least 20 years old. To this end, we are conducting evaluations at a two-story test facility that is representative of a commercial building from the 1980s, and are gathering measurements on the performance of its windows before and after double-pane, clear-glazed units are upgraded with R5 windows. Additionally, we will use these data to calibrate EnergyPlus models that we will allow us to extrapolate results to other climates. Findings from this project will provide empirical data on the benefits from high-performance windows, which will help promote their adoption in new and existing commercial buildings. This report describes the experimental setup, and includes some of the field and simulation results.

Shrestha, Som S [ORNL] [ORNL; Hun, Diana E [ORNL] [ORNL; Desjarlais, Andre Omer [ORNL] [ORNL

2013-12-01T23:59:59.000Z

194

High temperature thermometric phosphors  

DOE Patents (OSTI)

A high temperature phosphor consists essentially of a material having the general formula LuPO.sub.4 :Dy.sub.(x),Eu.sub.y) wherein: 0.1 wt %.ltoreq.x.ltoreq.20 wt % and 0.1 wt %.ltoreq.y.ltoreq.20 wt %. The high temperature phosphor is in contact with an article whose temperature is to be determined. The article having the phosphor in contact with it is placed in the environment for which the temperature of the article is to be determined. The phosphor is excited by a laser causing the phosphor to fluoresce. The emission from the phosphor is optically focused into a beam-splitting mirror which separates the emission into two separate emissions, the emission caused by the dysprosium dopant and the emission caused by the europium dopent. The separated emissions are optically filtered and the intensities of the emission are detected and measured. The ratio of the intensity of each emission is determined and the temperature of the article is calculated from the ratio of the intensities of the separate emissions.

Allison, Stephen W. (Knoxville, TN); Cates, Michael R. (Oak Ridge, TN); Boatner, Lynn A. (Oak Ridge, TN); Gillies, George T. (Earlysville, VA)

1999-03-23T23:59:59.000Z

195

High Performance Buildings Database  

DOE Data Explorer (OSTI)

The High Performance Buildings Database is a shared resource for the building industry, a unique central repository of in-depth information and data on high-performance, green building projects across the United States and abroad. The database includes information on the energy use, environmental performance, design process, finances, and other aspects of each project. Members of the design and construction teams are listed, as are sources for additional information. In total, up to twelve screens of detailed information are provided for each project profile. Projects range in size from small single-family homes or tenant fit-outs within buildings to large commercial and institutional buildings and even entire campuses. The database is a data repository as well. A series of Web-based data-entry templates allows anyone to enter information about a building project into the database. Once a project has been submitted, each of the partner organizations can review the entry and choose whether or not to publish that particular project on its own Web site.

196

High speed transient sampler  

DOE Patents (OSTI)

A high speed sampler comprises a meandered sample transmission line for transmitting an input signal, a straight strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates along the transmission lines. The sampling gates comprise a four terminal diode bridge having a first strobe resistor connected from a first terminal of the bridge to the positive strobe line, a second strobe resistor coupled from the third terminal of the bridge to the negative strobe line, a tap connected to the second terminal of the bridge and to the sample transmission line, and a sample holding capacitor connected to the fourth terminal of the bridge. The resistance of the first and second strobe resistors is much higher than the signal transmission line impedance in the preferred system. This results in a sampling gate which applies a very small load on the sample transmission line and on the strobe generator. The sample holding capacitor is implemented using a smaller capacitor and a larger capacitor isolated from the smaller capacitor by resistance. The high speed sampler of the present invention is also characterized by other optimizations, including transmission line tap compensation, stepped impedance strobe line, a multi-layer physical layout, and unique strobe generator design. A plurality of banks of such samplers are controlled for concatenated or interleaved sample intervals to achieve long sample lengths or short sample spacing. 17 figs.

McEwan, T.E.

1995-11-28T23:59:59.000Z

197

High speed transient sampler  

DOE Patents (OSTI)

A high speed sampler comprises a meandered sample transmission line for transmitting an input signal, a straight strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates along the transmission lines. The sampling gates comprise a four terminal diode bridge having a first strobe resistor connected from a first terminal of the bridge to the positive strobe line, a second strobe resistor coupled from the third terminal of the bridge to the negative strobe line, a tap connected to the second terminal of the bridge and to the sample transmission line, and a sample holding capacitor connected to the fourth terminal of the bridge. The resistance of the first and second strobe resistors is much higher than the signal transmission line impedance in the preferred system. This results in a sampling gate which applies a very small load on the sample transmission line and on the strobe generator. The sample holding capacitor is implemented using a smaller capacitor and a larger capacitor isolated from the smaller capacitor by resistance. The high speed sampler of the present invention is also characterized by other optimizations, including transmission line tap compensation, stepped impedance strobe line, a multi-layer physical layout, and unique strobe generator design. A plurality of banks of such samplers are controlled for concatenated or interleaved sample intervals to achieve long sample lengths or short sample spacing.

McEwan, Thomas E. (Livermore, CA)

1995-01-01T23:59:59.000Z

198

High Temperature Membrane Working Group  

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

This presentation provides an overview of the High Temperature Membrane Working Group Meeting in May 2007.

199

Y High-Resolution  

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

Y Y High-Resolution . __ DO NOT M I C PET COVER for medical science studies Lawrence Berkeley Laboratory University of California September 1989 DlSTRlBUTlGN OF THIS DOCUMENT IS U#LIIY/ITEE Acknowledgments This booklet was prepared under the sponsorship of the U.S. Department of Energy Office of Health Effects Research, the National Institutes of Health, and the Lawrence Berkeley Laboratory's Research Medicine and Radiation Biophysics Division. We thank Sarah Cahn and Douglas Vaughan for coordination of this booklet. esolution PET for Medical Science Studies Thomas F. Budinger Stephen E. Derenzo Ronald H. Huesman William J. Jagust Peter E. Valk CONTENTS A PET Primer Positron Emission Tomography: Evolution of a Technology 7 PET Theory: Emission, Detection, and Reconstruction

200

Highly Insulating Windows - Publ  

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

Highly Insulating Windows - Publications Future Advanced Windows for Zero-Energy Homes, J. Apte, D. Arasteh, J. Huang, 2003 ASHRAE Annual Meeting, 2002 Nine representative window products are examined in eight representative U.S. climates. Annual energy and peak demand impacts are investigated. We conclude that a new generation of window products is necessary for zero-energy homes if windows are not to be an energy drain on these homes. Performance Criteria for Residential Zero Energy Windows, D. Arasteh, H. Goudey, J. Huang, C. Kohler, R. Mitchell, 2006, submitted to ASHRAE Through the use of whole house energy modeling, typical efficient products are evaluated in five US climates and compared against the requirements for ZEHs. Products which meet these needs are defined as a function of climate.

Note: This page contains sample records for the topic "high apparent hurdle" 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

High energy physics  

SciTech Connect

Hadron collider studies will focus on: (i) the search for the top quark with the newly installed D0 detector at the Fermilab Tevatron collider, (ii) the upgrade of the D0 detector to match the new main injector luminosity and (iii) R&D on silicon microstrip tracking devices for the SSC. High statistics studies of Z{sup 0} decay will continue with the OPAL detector at LEP. These studies will include a direct measurement of Z decay to neutrinos, the search for Higgs and heavy quark decays of Z. Preparations for the Large Scintillation Neutrino Detector (LSND) to measure neutrino oscillations at LAMPF will focus on data acquisition and testing of photomultiplier tubes. In the theoretical area E. Ma will concentrate on mass-generating radiative mechanisms for light quarks and leptons in renormalizable gauge field theories. J. Wudka`s program includes a detailed investigation of the magnetic-flip approach to the solar neutrino.

Kernan, A.; Shen, B.C.; Ma, E.

1997-07-01T23:59:59.000Z

202

HIGH PERFORMANCE COMPUTING  

E-Print Network (OSTI)

This paper presents recent developments of high performance computing and networking techniques in the field of computer-aided multibody analysis and design. The authors describe the main achievements obtained in the development of a tool to aid in the design of new industrial mechanical systems by performing parallel parametric multibody simulations. The parallel software is composed of four main modules: two user-friendly interfaces to input the data and visualize the results, a simulation module, and a parallel manager module that is the main focus of this paper. The authors show that the implementation, using PVM, of simple and well-known ideas leads to efficient and flexible parallel software targeted for heterogeneous networks of nondedicated workstations, which is the parallel platform available in most mechanical design departments.

Ra Baldini; Luc Giraud; Javier G. Izaguirre; Jose M. Jimenez; Luis M. Matey; Sandra Baldini; Luc Giraud; Javier G. Izaguirre; Jose M. Jimenez; Luis M. Matey

203

High-resistance faults on a multi-terminal line: Analysis, simulated studies and an adaptive distance relaying scheme  

SciTech Connect

The presence of a T-connection to a third terminal can drastically affect the performance of a distance relay at the other terminals. Fault resistance, especially high fault resistance, makes this problem more severe and complicated. Detailed analysis of the apparent impedance for these cases as seen from the relaying point is derived and, based on extensive simulations of the infeed/outfeed and fault-resistance effects on the relay characteristics, an adaptive distance relaying scheme is proposed. A microprocessor based distance relay using this new technique can quickly respond to very-high-resistance faults with maximum coverage of the protected line. The validity of this new scheme has been confirmed by real-time testing on a prototype hardware scheme.

Xia, Y.Q. (Tianjin Univ. (China)); David, A.K.; Li, K.K. (Hong Kong Polytechnic, Kowloon (Hong Kong))

1994-01-01T23:59:59.000Z

204

High pressure--high temperature research using high energy synchrotron radiation at the TRISTAN accumulation ring  

SciTech Connect

High energy synchrotron radiation emitted from the bending magnet of the TRISTAN accumulation ring (6.5 GeV) at the National Laboratory for High Energy Physics has been used for the high pressure--high temperature diffraction experiments using a multianvil press system, MAX80. Owing to the specific features of high energy synchroton radiation, significant improvements have been brought to the high pressure research. The wide energy range of diffraction spectrum leads to an increase in the number of observable diffraction peaks in an energy-dispersive method, resulting in an increase in the accuracy of the measurements of the lattice and thermal parameters. Due to the high penetrating power of radiation, diffraction patterns can be taken in a short time from materials containing heavy elements or materials surrounded by a metal foil. Typical examples of high pressure--high temperature experiments with high energy synchrotron radiation are also described.

Kikegawa, T.; Shimomura, O.; Iwasaki, H.; Sato, S.; Mikuni, A.; Iida, A.; Kamiya, N.

1989-07-01T23:59:59.000Z

205

High Temperature Corrosion Test Facilities and High Pressure Test  

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

High Temperature High Temperature Corrosion Test Facilities and High Pressure Test Facilities for Metal Dusting Test Facilities for Metal Dusting Overview Other Facilities Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr High Temperature Corrosion Test Facilities and High Pressure Test Facilities for Metal Dusting Six corrosion test facilities and two thermogravimetric systems for conducting corrosion tests in complex mixed gas environments, in steam and in the presence of deposits, and five facilities for metal dusting degradation Bookmark and Share The High Temperature Corrosion Test Facilities and High Pressure Test Facilities for Metal Dusting include: High Pressure Test Facility for Metal Dusting Resistance:

206

High Energy Density Science with High Peak Power Light Sources  

Science Journals Connector (OSTI)

High energy density (HED) science is a growing sub-field of plasma and condensed matter physics. I will examine how recent technological developments in high peak power, petawatt-class...

Ditmire, Todd

207

High power connection system  

DOE Patents (OSTI)

A high power connection system adapted for automotive environments which provides environmental and EMI shielding includes a female connector, a male connector, and a panel mount. The female connector includes a female connector base and a snap fitted female connector cover. The male connector includes a male connector base and a snap fitted male connector cover. The female connector base has at least one female power terminal cavity for seatably receiving a respective female power terminal. The male connector base has at least one male power terminal cavity for seatably receiving a respective male power terminal. The female connector is covered by a cover seal and a conductive shroud. A pair of lock arms protrude outward from the front end of the male connector base, pass through the panel mount and interface with a lever of a lever rotatably connected to the shroud to thereby mechanically assist mating of the male and female connectors. Safety terminals in the male and female connectors provide a last-to-connect-first-to-break connection with an HVIL circuit.

Schaefer, Christopher E. (Warren, OH); Beer, Robert C. (Noblesville, IN); McCall, Mark D. (Youngstown, OH)

2000-01-01T23:59:59.000Z

208

UESC and High Tech Facilities  

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

Federal Energy Management Program UESC and High Tech Facilities Charles Williams, Lawrence Berkeley National Lab 2 | FUPWG April 2012 High Tech Building UESC Partnership Leveraging Technical Potential, Market Opportunity, Program Resources * Energy-intensive facilities with high savings potential * PG&E service territory - high concentration of high-technology buildings * PG&E UESC program, new and growing * DOE FEMP programs for UESC and High-Tech Buildings * LBNL expertise in labs, data centers, clean rooms * LBNL support for UESC program * UESC potential for innovation * Presidential "We Can't Wait $2 Billion challenge to Federal agencies 3 | FUPWG April 2012 UESC project support at LBNLL Training /Education

209

POLICY PERSPECTIVE High Conservation Value or high confusion value? Sustainable  

E-Print Network (OSTI)

and biodiversity conservation in the tropics David P. Edwards1 , Brendan Fisher1 , & David S. Wilcove2 1 WoodrowPOLICY PERSPECTIVE High Conservation Value or high confusion value? Sustainable agriculture certifies timber that is harvested to manage and maintain forests defined as having High Conservation Value

Vermont, University of

210

1International High Speed Rail Conference 19642064 High Speed Rail  

E-Print Network (OSTI)

1International High Speed Rail Conference 1964­2064 High Speed Rail: Celebrating Ambition 2014 by the Birmingham Centre for Railway Research and Education Conference programme 8 ­10 December 2014 Kindly supported by: #12;2 International High Speed Rail Conference Monday 8 December 12:00 ­ 12:50 Registration

Birmingham, University of

211

High density Integrated Optoelectronic Circuits for High Speed Photonic Microsystems  

E-Print Network (OSTI)

High density Integrated Optoelectronic Circuits for High Speed Photonic Microsystems K. Minoglou.minoglou@imel.demorkitos.gr Abstract. The study of high density integrated optoelectronic circuits involves the development of hybrid integration technologies and the generation of models for the optoelectronic devices. To meet these goals

Kouroupetroglou, Georgios

212

High Average Power, High Energy Short Pulse Fiber Laser System  

SciTech Connect

Recently continuous wave fiber laser systems with output powers in excess of 500W with good beam quality have been demonstrated [1]. High energy, ultrafast, chirped pulsed fiber laser systems have achieved record output energies of 1mJ [2]. However, these high-energy systems have not been scaled beyond a few watts of average output power. Fiber laser systems are attractive for many applications because they offer the promise of high efficiency, compact, robust systems that are turn key. Applications such as cutting, drilling and materials processing, front end systems for high energy pulsed lasers (such as petawatts) and laser based sources of high spatial coherence, high flux x-rays all require high energy short pulses and two of the three of these applications also require high average power. The challenge in creating a high energy chirped pulse fiber laser system is to find a way to scale the output energy while avoiding nonlinear effects and maintaining good beam quality in the amplifier fiber. To this end, our 3-year LDRD program sought to demonstrate a high energy, high average power fiber laser system. This work included exploring designs of large mode area optical fiber amplifiers for high energy systems as well as understanding the issues associated chirped pulse amplification in optical fiber amplifier systems.

Messerly, M J

2007-11-13T23:59:59.000Z

213

Formation of High-Quality Self-Assembled Monolayers of Conjugated Dithiols on Gold: Base Matters  

Science Journals Connector (OSTI)

(The presence of free thiols may be causing the apparent increase in the amount of oxygen by inducing surreptitious, oxygen-rich compounds to adsorb to the surface.) ...

Hennie Valkenier; Everardus H. Huisman; Paul A. van Hal; Dago M. de Leeuw; Ryan C. Chiechi; Jan C. Hummelen

2011-03-08T23:59:59.000Z

214

Ultra high vacuum broad band high power microwave window  

DOE Patents (OSTI)

An improved high vacuum microwave window has been developed that utilizes high density polyethylene coated on two sides with SiOx, SiNx, or a combination of the two. The resultant low dielectric and low loss tangent window creates a low outgassing, low permeation seal through which broad band, high power microwave energy may be passed. No matching device is necessary and the sealing technique is simple. The features of the window are broad band transmission, ultra-high vacuum compatibility with a simple sealing technique, low voltage standing wave ratio, high power transmission and low cost.

Nguyen-Tuong, Viet (Seaford, VA); Dylla, III, Henry Frederick (Yorktown, VA)

1997-01-01T23:59:59.000Z

215

Ultra high vacuum broad band high power microwave window  

DOE Patents (OSTI)

An improved high vacuum microwave window has been developed that utilizes high density polyethylene coated on two sides with SiOx, SiNx, or a combination of the two. The resultant low dielectric and low loss tangent window creates a low outgassing, low permeation seal through which broad band, high power microwave energy may be passed. No matching device is necessary and the sealing technique is simple. The features of the window are broad band transmission, ultra-high vacuum compatibility with a simple sealing technique, low voltage standing wave ratio, high power transmission and low cost. 5 figs.

Nguyen-Tuong, V.; Dylla, H.F. III

1997-11-04T23:59:59.000Z

216

High repetition rate fiber lasers  

E-Print Network (OSTI)

This thesis reports work in high repetition rate femtosecond fiber lasers. Driven by the applications including optical arbitrary waveform generation, high speed optical sampling, frequency metrology, and timing and frequency ...

Chen, Jian, Ph. D. Massachusetts Institute of Technology

2009-01-01T23:59:59.000Z

217

High intensity femtosecond enhancement cavities  

E-Print Network (OSTI)

To produce extreme ultraviolet radiation via high harmonic generation (HHG) in rare gases, light intensities in excess of 1014 W/cm 2 are required. Usually such high intensity are obtained by parametric amplification of ...

Abram, Gilberto

2009-01-01T23:59:59.000Z

218

High-Pressure Hydrogen Tanks  

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

Presentation on High-Pressure Hydrogen Tanks for the DOE Hydrogen Delivery High-Pressure Tanks and Analysis Project Review Meeting held February 8-9, 2005 at Argonne National Laboratory

219

High flux compact neutron generators  

E-Print Network (OSTI)

High Flux Compact Neutron Generators ‡ J. Reijonen §,1 , T-Compact high flux neutron generators are developed at thevoltage feed through of the generator is shown in Fig. 4.

Reijonen, J.; Lou, T.-P.; Tolmachoff, B.; Leung, K.-N.; Verbeke, J.; Vujic, J.

2001-01-01T23:59:59.000Z

220

Highly linear low noise amplifier  

E-Print Network (OSTI)

, the Low Noise Amplifier (LNA) is expected to provide high linearity, thus preventing the intermodulation tones created by the interference signal from corrupting the carrier signal. The research focuses on designing a novel LNA which achieves high...

Ganesan, Sivakumar

2007-09-17T23:59:59.000Z

Note: This page contains sample records for the topic "high apparent hurdle" 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

High-Temperature Water Splitting  

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

High-temperature water splitting (a "thermochemical" process) is a long-term technology in the early stages of development.

222

High Performance Computing contributions to  

E-Print Network (OSTI)

High Performance Computing contributions to DoD Mission Success 2002 #12;Approved for public/C nanotube in a field emitter configuration #12;HIGH PERFORMANCE COMPUTING contributions tocontributions ­ SECTION 1 INTRODUCTION 1 Introduction 3 Overview of the High Performance Computing Modernization Program 3

223

High Performance and Sustainable Buildings Guidance | Department...  

Energy Savers (EERE)

High Performance and Sustainable Buildings Guidance High Performance and Sustainable Buildings Guidance High Performance and Sustainable Buildings Guidance More Documents &...

224

Coal plasticity at high heating rates and temperatures. Final technical progress report  

SciTech Connect

Plastic coals are important feedstocks in coke manufacture, coal liquefaction, gasification, and combustion. During these processes, the thermoplastic behavior of these coals is also important since it may contribute to desirable or undesirable characteristics. For example, during liquefaction, the plastic behavior is desired since it leads to liquid-liquid reactions which are faster than solid-liquid reactions. During gasification, the elastic behavior is undesired since it leads to caking and agglomeration of coal particles which result in bed bogging in fixed or fluidized bed gasifiers. The plastic behavior of different coals was studied using a fast-response plastometer. A modified plastometer was used to measure the torque required to turn at constant angular speed a cone-shaped disk embedded in a thin layer of coal. The coal particles were packed between two metal plates which are heated electrically. Heating rates, final temperatures, pressures, and durations of experiment ranged from 200--800 K/s, 700--1300 K, vacuum-50 atm helium, and 0--40 s, respectively. The apparent viscosity of the molten coal was calculated from the measured torque using the governing equation of the cone-and-plate viscometer. Using a concentrated suspension model, the molten coal`s apparent viscosity was related to the quantity of the liquid metaplast present during pyrolysis. Seven coals from Argonne National Laboratory Premium Coal Sample Bank were studied. Five bituminous coals, from high-volatile to low-volatile bituminous, were found to have very good plastic behavior. Coal type strongly affects the magnitude and duration of plasticity. Hvb coals were most plastic. Mvb and lvb coals, though the maximum plasticity and plastic period were less. Low rank coals such as subbituminous and lignite did not exhibit any plasticity in the present studies. Coal plasticity is moderately well correlated with simple indices of coal type such as the elemental C,O, and H contents.

Gerjarusak, S.; Peters, W.A.; Howard, J.B.

1995-05-01T23:59:59.000Z

225

ADONIS high contrast infrared imaging of Sirius-B  

E-Print Network (OSTI)

Sirius is the brightest star in the sky and a strong source of diffuse light for modern telescopes so that the immediate surroundings of the star are still poorly known. We study the close surroundings of the star (2 to 25 arcsec) by means of adaptive optics and coronographic device in the near-infrared, using the ESO/ADONIS system. The resulting high contrast images in the JHKs bands have a resolution of ~ 0.2 arcsec and limiting apparent magnitude ranging from mK = 9.5 at 3 arcsec, from Sirius-A to mK = 13.1 at 10 arcsec. These are the first and deepest images of the Sirius system in this infrared range. From these observations, accurate infrared photometry of the Sirius-B white dwarf companion is obtained. The JH magnitudes of Sirius-B are found to agree with expectations for a DA white dwarf of temperature (T=25000K) and gravity (log(g) = 8.5), consistent with the characteristics determined from optical observations. However, a small, significant excess is measurable for the K band, similar to that detected for "dusty" isolated white dwarfs harbouring suspected planetary debris. The possible existence of such circumstellar material around Sirius-B has still to be confirmed by further observations. These deep images allow us to search for small but yet undetected companions to Sirius. Apart from Sirius-B, no other source is detected within the total 25 arcsec field. The minimum detectable mass is around 10 MJup inside the planetary limit, indicating that an extrasolar planet at a projected distance of ~ 25 AU from Sirius would have been detected (abridged abstract).

Jean-Marc Bonnet-Bidaud; Eric Pantin

2008-09-28T23:59:59.000Z

226

High-Temperature-High-Volume Lifting | Open Energy Information  

Open Energy Info (EERE)

source 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 History Facebook icon Twitter icon » High-Temperature-High-Volume Lifting Jump to: navigation, search Geothermal ARRA Funded Projects for High-Temperature-High-Volume Lifting Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":200,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"","intro":"","outro":"","searchlabel":"\u2026

227

High Temperature, High Pressure Devices for Zonal Isolation in...  

Open Energy Info (EERE)

remotely and autonomous deployable structures for space and our high temperature composite technology developed for downhole applications. These devices offer several...

228

National High Magnetic Field Laboratory: DC Field Facility: High...  

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

phase transitions High-resolution electron spin resonance (ESR) spectroscopy of transition metal ions (which is of great importance in chemistry, biochemistry and structural...

229

High Pressure Research Questionnaire National High Magnetic Field...  

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

Pressure Research Questionnaire National High Magnetic Field Laboratory Operated by Florida State University, University of Florida, Los Alamos National Laboratory Florida State...

230

High-temperature Pump Monitoring - High-temperature ESP Monitoring...  

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

Report Detecting Fractures Using Technology at High Temperatures and Depths - Geothermal Ultrasonic Fracture Imager (GUFI); 2010 Geothermal Technology Program Peer Review Report...

231

High-Temperature-High-Volume Lifting for Enhanced Geothermal...  

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

Norman Turnquist GE Global Research High Temperature Tools and Sensors, Down-hole Pumps and Drilling May 19, 2010 This presentation does not contain any proprietary...

232

High resolution time interval meter  

DOE Patents (OSTI)

Method and apparatus are provided for measuring the time interval between two events to a higher resolution than reliability available from conventional circuits and component. An internal clock pulse is provided at a frequency compatible with conventional component operating frequencies for reliable operation. Lumped constant delay circuits are provided for generating outputs at delay intervals corresponding to the desired high resolution. An initiation START pulse is input to generate first high resolution data. A termination STOP pulse is input to generate second high resolution data. Internal counters count at the low frequency internal clock pulse rate between the START and STOP pulses. The first and second high resolution data are logically combined to directly provide high resolution data to one counter and correct the count in the low resolution counter to obtain a high resolution time interval measurement.

Martin, A.D.

1986-05-09T23:59:59.000Z

233

HIGHLY COMPRESSED ION BEAMS FOR HIGH ENERGY DENSITY SCIENCE  

E-Print Network (OSTI)

HIGHLY COMPRESSED ION BEAMS FOR HIGH ENERGY DENSITY SCIENCE A. Friedman1,2 , J.J.Barnard1,2 , R Energy Density regimes required for Inertial Fu- sion Energy and other applications. An interim goal we are pursuing, low to medium mass ions with energies just above the Bragg peak are directed onto

Wurtele, Jonathan

234

High-power, high-intensity laser propagation and interactions  

SciTech Connect

This paper presents overviews of a number of processes and applications associated with high-power, high-intensity lasers, and their interactions. These processes and applications include: free electron lasers, backward Raman amplification, atmospheric propagation of laser pulses, laser driven acceleration, atmospheric lasing, and remote detection of radioactivity. The interrelated physical mechanisms in the various processes are discussed.

Sprangle, Phillip [Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375 (United States); Electrical and Computer Engineering and Physics, University of Maryland, College Park, Maryland 20740 (United States); Hafizi, Bahman [Plasma Physics Division, Naval Research Laboratory, Washington, DC 20375 (United States)

2014-05-15T23:59:59.000Z

235

Long, Highly-Ordered High-Temperature Superconductor Nanowire Arrays  

Science Journals Connector (OSTI)

Long, Highly-Ordered High-Temperature Superconductor Nanowire Arrays ... For bulk superconductors, the electrical resistance drops precipitously to zero below the superconducting transition temperature (Tc). ... Even these temperatures are considerably higher than those found in conventional superconductor NWs of similar widths, which are typically below liquid helium temperature (4.2 K). ...

Ke Xu; James R. Heath

2008-10-28T23:59:59.000Z

236

Results from high energy accelerators  

E-Print Network (OSTI)

We review some of the recent experimental results obtained at high-energy colliders with emphasis on LEP and SLC results.

G. Giacomelli; B. Poli

2002-02-11T23:59:59.000Z

237

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

238

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

239

High Temperature Processing Symposium 2014  

E-Print Network (OSTI)

} High temperature recycling operations } Materials sustainability } New furnace technology (including solar) We look forward to seeing you in February 2014. Dr M Akbar Rhamdhani (Chairman HTPS 2014) Prof

Liley, David

240

The feasibility of high-efficiency InAs/GaAs quantum dot intermediate band solar cells  

Science Journals Connector (OSTI)

Abstract In recent years, all the operating principles of intermediate band behaviour have been demonstrated in InAs/GaAs quantum dot (QD) solar cells. Having passed this hurdle, a new stage of research is underway, whose goal is to deliver QD solar cells with efficiencies above those of state-of-the-art single-gap devices. In this work, we demonstrate that this is possible, using the present InAs/GaAs QD system, if the \\{QDs\\} are made to be radiatively dominated, and if absorption enhancements are achieved by a combination of increasing the number of \\{QDs\\} and light trapping. A quantitative prediction is also made of the absorption enhancements required, suggesting that a 30 fold increase in the number of \\{QDs\\} and a light trapping enhancement of 10 are sufficient. Finally, insight is given into the relative merits of absorption enhancement via increasing QD numbers and via light trapping.

A. Mellor; A. Luque; I. Tobías; A. Martí

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "high apparent hurdle" 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

DEVELOPMENT OF A NATURAL GAS TO HYDROGEN FUEL STATION William E. Liss  

E-Print Network (OSTI)

DEVELOPMENT OF A NATURAL GAS TO HYDROGEN FUEL STATION William E. Liss P: 847-768-0753; E: william hurdles facing on-board liquid fuel reforming. This program leverages efforts to develop natural gas for compressed natural gas vehicles. The integrated natural gas-to-hydrogen system includes a high efficiency

242

Understanding the implications of the data from recent high-energy-density Kelvin-Helmholtz shear layer experiments  

SciTech Connect

The first successful high energy density Kelvin-Helmholtz (KH) shear layer experiments (O.A. Hurricane, et al., Phys. Plasmas, 16, 056305, 2009; E.C. Harding, et al., Phys. Rev. Lett., 103, 045005, 2009) demonstrated the ability to design and field a target that produces an array of large diagnosable KH vortices in a controlled fashion. Data from these experiments vividly showed the complete evolution of large distinct eddies, from formation to apparent turbulent break-up. Unexpectedly, low-density bubbles/cavities comparable to the vortex size ({approx} 300 - 400 {micro}m) appeared to grow up in the free-stream flow above the unstable material interface. In this paper, the basic principles of the experiment will be discussed, the data reviewed, and the progress on understanding the origin of the above bubble structures through theory and simulation will be reported on.

Hurricane, O A; Hansen, J F; Harding, E C; Drake, R P; Robey, H F; Remington, B A; Kuranz, C C; Grosskopf, M J; Gillespie, R S; Park, H

2009-10-26T23:59:59.000Z

243

High Temperature, High Pressure Devices for Zonal Isolation in Geothermal  

Open Energy Info (EERE)

Temperature, High Pressure Devices for Zonal Isolation in Geothermal Temperature, High Pressure Devices for Zonal Isolation in Geothermal Wells Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title High Temperature, High Pressure Devices for Zonal Isolation in Geothermal Wells Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 Zonal Isolation Project Description For Enhanced Geothermal Systems (EGS), high-temperature high-pressure zonal isolation tools capable of withstanding the downhole environment are needed. In these wells the packers must withstand differential pressures of 5,000 psi at more than 300°C, as well as pressures up to 20,000 psi at 200°C to 250°C. Furthermore, when deployed these packers and zonal isolation tools must form a reliable seal that eliminates fluid loss and mitigates short circuiting of flow from injectors to producers. At this time, general purpose open-hole packers do not exist for use in geothermal environments, with the primary technical limitation being the poor stability of existing elastomeric seals at high temperatures.

244

High-Temperature-High-Volume Lifting For Enhanced Geothermal Systems  

Open Energy Info (EERE)

Temperature-High-Volume Lifting For Enhanced Geothermal Systems Temperature-High-Volume Lifting For Enhanced Geothermal Systems Geothermal Project Jump to: navigation, search Last modified on July 22, 2011. Project Title High-Temperature-High-Volume Lifting For Enhanced Geothermal Systems Project Type / Topic 1 Recovery Act: Enhanced Geothermal Systems Component Research and Development/Analysis Project Type / Topic 2 High-Temperature-High-Volume Lifting Project Description The proposed scope of work is divided into three Phases. Overall system requirements will be established in Phase 1, along with an evaluation of existing lifting system capability, identification of technology limitations, and a conceptual design of an overall lifting system. In developing the system components in Phase 2, component-level tests will be conducted using GE facilities. Areas of development will include high-temperature drive system materials, journal and thrust bearings, and corrosion and erosion-resistant lifting pump components. Finally, in Phase 3, the overall lab-scale lifting system will be demonstrated in a flow loop that will be constructed at GE Global Research.

245

In today's highly competitive marketplace,  

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

today's highly competitive marketplace, rapid creation today's highly competitive marketplace, rapid creation and commercialization of scientific advances and innovative technologies are key to the continued prosperity of the United States. Scientists and engineers at Lawrence Livermore National Laboratory (LLNL) have achieved numerous science and technology breakthroughs that have led to new industries, spurred economic growth and benefited the national welfare.

246

Ultra High Energy Cosmic Rays  

Science Journals Connector (OSTI)

We discuss briefly the phenomenon of the Ultra High Energy Cosmic Rays (UHECR) particles of energy approaching and exceeding 1011 GeV. The world experimental statistics contains a small number of events but their existence is a puzzle. Its solution may lead to exciting discoveries in high energy particle astrophysics as well as in particle physics and astronomy.

Todor Stanev

2004-01-01T23:59:59.000Z

247

Temperature controlled high voltage regulator  

DOE Patents (OSTI)

A temperature controlled high voltage regulator for automatically adjusting the high voltage applied to a radiation detector is described. The regulator is a solid state device that is independent of the attached radiation detector, enabling the regulator to be used by various models of radiation detectors, such as gas flow proportional radiation detectors.

Chiaro, Jr., Peter J. (Clinton, TN); Schulze, Gerald K. (Knoxville, TN)

2004-04-20T23:59:59.000Z

248

High temperature lightweight foamed cements  

DOE Patents (OSTI)

Cement slurries are disclosed which are suitable for use in geothermal wells since they can withstand high temperatures and high pressures. The formulation consists of cement, silica flour, water, a retarder, a foaming agent, a foam stabilizer, and a reinforcing agent. A process for producing these cements is also disclosed. 3 figs.

Sugama, Toshifumi.

1989-10-03T23:59:59.000Z

249

Electrokinetically pumped high pressure sprays  

DOE Patents (OSTI)

An electrokinetic pump capable of producing high pressure is combined with a nozzle having a submicron orifice to provide a high pressure spray device. Because of its small size, the device can be contained within medical devices such as an endoscope for delivering biological materials such as DNA, chemo therapeutic agents, or vaccines to tissues and cells.

Schoeniger, Joseph S. (Oakland, CA); Paul, Phillip H. (Livermore, CA); Schoeniger, Luke (Pittsford, NY)

2005-11-01T23:59:59.000Z

250

Fundamentals of high pressure adsorption  

SciTech Connect

High-pressure adsorption attracts research interests following the world's attention to alternative fuels, and it exerts essential effect on the study of hydrogen/methane storage and the development of novel materials addressing to the storage. However, theoretical puzzles in high-pressure adsorption hindered the progress of application studies. Therefore, the present paper addresses the major theoretical problems that challenged researchers: i.e., how to model the isotherms with maximum observed in high-pressure adsorption; what is the adsorption mechanism at high pressures; how do we determine the quantity of absolute adsorption based on experimental data. Ideology and methods to tackle these problems are elucidated, which lead to new insights into the nature of high-pressure adsorption and progress in application studies, for example, in modeling multicomponent adsorption, hydrogen storage, natural gas storage, and coalbed methane enrichment, was achieved.

Zhou, Y.P.; Zhou, L. [Tianjin University, Tianjin (China). High Pressure Adsorption Laboratory

2009-12-15T23:59:59.000Z

251

High Temperature | Open Energy Information  

Open Energy Info (EERE)

Temperature Temperature Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Sanyal Temperature Classification: High Temperature Dictionary.png High Temperature: 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 Reservoir fluid between 230°C and 300°C is considered by Sanyal to be "high temperature." "Above a temperature level of 230°C, the reservoir would be expected to become two-phase at some point during exploitation. The next higher

252

High Technology and Industrial Systems  

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

Semiconductor clean room Semiconductor clean room High Technology and Industrial Systems EETD's research on high technology buildings and industrial systems is aimed at reducing energy consumed by the industrial sector in manufacturing facilities, including high technology industries such as data centers, cleanrooms in the such industries as electronics and pharmaceutical manufacturing, and laboratories, improving the competitiveness of U.S. industry. Contacts William Tschudi WFTschudi@lbl.gov (510) 495-2417 Aimee McKane ATMcKane@lbl.gov (518) 782-7002 Links High-Performance Buildings for High-Tech Industries Industrial Energy Analysis Batteries and Fuel Cells Buildings Energy Efficiency Applications Commercial Buildings Cool Roofs and Heat Islands Demand Response Energy Efficiency Program and Market Trends

253

High Bandgap III-V Alloys for High Efficiency Optoelectronics...  

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

bandgap alloys for high efficiency optoelectronics are disclosed. An exemplary optoelectronic device may include a substrate, at least one Al.sub.1-xIn.sub.xP layer, and a...

254

high  

Gasoline and Diesel Fuel Update (EIA)

December 1999 December 1999 Highlights International Oil Markets Prices. World oil prices for the remainder of 1999 and all of 2000 are expected to remain above $20 per barrel. EIA believes that prices will rise from average November levels (an estimated $23.50 per barrel for the price paid by U.S. refiners for imported crude) by about $1 per barrel by December, due to increased demand in the winter and Y2K precautionary building of end-user inventories (see a brief discussion on Y2K impacts below). The world oil price is then expected to dip slightly to an average of $24.00 per barrel in January 2000 as the peak of the winter stock build passes before gradually declining to $20.50 per barrel by December 2000. This forecast assumes that OPEC compliance remains relatively strong

255

HIGH  

Gasoline and Diesel Fuel Update (EIA)

000 000 Highlights International Oil Markets Prices. We have found little need to adjust our oil price forecast from last month's report, since no evidence of significantly more bullish (or bearish) sentiment on the world oil market has arisen since last month. Our estimate from the December Outlook for the November imported oil cost still looks good at $23.50 and our current estimate for December's price at $24.75 is only slightly above last month's expected December level ($24.50). Thus, annual average prices remain, in our view, on a pace to show $5-per- barrel increases in both 1999 and 2000 (Figure 1). This pattern masks the more salient aspect of the forecast, which calls for steadily (but gradually) declining prices through 2000 and into 2001 when looking ahead by month from where we are today (Figure 2).

256

High  

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

the pitch of B (r), and B(r), flips toroidally, such that the unidirectional toroidal electric field drives current in opposite directions, with respect to B, in the regions...

257

High-Performance Nanostructured Coating  

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

The High-Performance Nanostructured Coating fact sheet details a SunShot project led by a University of California, San Diego research team working to develop a new high-temperature spectrally selective coating for receiver surfaces. These receiver surfaces, used in concentrating solar power systems, rely on high-temperature SSCs to effectively absorb solar energy without emitting much blackbody radiation.The optical properties of the SSC directly determine the efficiency and maximum attainable temperature of solar receivers, which in turn influence the power-conversion efficiency and overall system cost.

258

THE TRENDS HIGH-CONTRAST IMAGING SURVEY. II. DIRECT DETECTION OF THE HD 8375 TERTIARY  

SciTech Connect

We present the direct imaging detection of a faint tertiary companion to the single-lined spectroscopic binary HD 8375 AB. Initially noticed as an 53 m s{sup -1} yr{sup -1} Doppler acceleration by Bowler et al., we have obtained high-contrast adaptive optics observations at Keck using NIRC2 that spatially resolve HD 8375 C from its host(s). Astrometric measurements demonstrate that the companion shares a common proper-motion. We detect orbital motion in a clockwise direction. Multiband relative photometry measurements are consistent with an early M-dwarf spectral type ({approx}M1V). Our combined Doppler and imaging observations place a lower-limit of m {>=} 0.297 M{sub Sun} on its dynamical mass. We also provide a refined orbit for the inner pair using recent radial velocity measurements obtained with the High Resolution Echelle Spectrometer. HD 8375 is one of many triple-star systems that are apparently missing in the solar neighborhood.

Crepp, Justin R. [Department of Physics, University of Notre Dame, 225 Nieuwland Science Hall, Notre Dame, IN 46556 (United States); Johnson, John Asher; Yantek, Scott M. [Department of Astronomy, California Institute of Technology, 1200 E. California Blvd., Pasadena, CA 91125 (United States); Howard, Andrew W. [Institute for Astronomy, University of Hawaii, 2680 Woodlawn Drive, Honolulu, HI 96822 (United States); Marcy, Geoff W.; Isaacson, Howard [Department of Astronomy, University of California, Berkeley, CA 94720 (United States); Fischer, Debra A. [Department of Physics, Yale University, New Haven, CT 06511 (United States); Wright, Jason T.; Feng Ying, E-mail: jcrepp@nd.edu [Department of Astronomy and Astrophysics, The Pennsylvania State University, University Park, PA 16802 (United States)

2013-07-01T23:59:59.000Z

259

High Energy Cost Grants | Department of Energy  

Energy Savers (EERE)

High Energy Cost Grants High Energy Cost Grants The High Energy Cost Grant Program provides financial assistance for the improvement of energy generation, transmission, and...

260

OCIO Technology Summit: High Performance Computing | Department...  

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

OCIO Technology Summit: High Performance Computing OCIO Technology Summit: High Performance Computing January 16, 2015 - 12:51pm Addthis OCIO Technology Summit: High Performance...

Note: This page contains sample records for the topic "high apparent hurdle" 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

OCIO High Performance Computing Technology Summit | Department...  

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

OCIO High Performance Computing Technology Summit OCIO High Performance Computing Technology Summit The OCIO High Performance Computing Technology Summit is on Wednesday, January...

262

Computational biology and high performance computing  

E-Print Network (OSTI)

Biology and High Performance Computing Manfred Zorn, TeresaBiology and High Performance Computing Presenters: Manfred99-Portland High performance computing has become one of the

Shoichet, Brian

2011-01-01T23:59:59.000Z

263

High Efficiency Particulate Air Filters  

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

High Efficiency Particulate Air (HEPA) Filters High Efficiency Particulate Air (HEPA) Filters Home Standards DOE Workshops Nuclear Air Cleaning Conference Proceedings Qualified Filter List News Items Related Sites HEPA Related Lessons Learned Contact Us HSS Logo High Efficiency Particulate Air Filters The HEPA Filter web site provides a forum for informing and reporting department-wide activities related to filtration and ventilation issues with special reference to the High Efficiency Particulate Air (HEPA) Filters' use, inspection, and testing. This site contains essentials of DOE HEPA filter test program, procedures, requirements and quality assurance aspects applicable to HEPA filters used in DOE facilities. This site contains information about the DOE-accepted Filter Test Facility and its management, operation and quality assuranceprogram.

264

High-Pressure Hydrogen Tanks  

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

February 8 February 8 th , 2005 Mark J. Warner, P.E. Principal Engineer Quantum Technologies, Inc. Irvine, CA Low Cost, High Efficiency, Low Cost, High Efficiency, High Pressure Hydrogen Storage High Pressure Hydrogen Storage This presentation does not contain any proprietary or confidential information. 70 MPa Composite Tanks Vent Line Ports Defueling Port (optional) Fill Port Filter Check Valve Vehicle Interface Bracket with Stone Shield In Tank Regulator with Solenoid Lock-off Pressure Relief Device Manual Valve Compressed Hydrogen Storage System In-Tank Regulator Pressure Sensor (not visible here) Pressure Relief Device (thermal) In Tank Gas Temperature Sensor Carbon Composite Shell (structural) Impact Resistant Outer Shell (damage resistant) Gas Outlet Solenoid Foam Dome (impact protection)

265

UESC and High Tech Facilities  

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

Presentation—given at the April 2012 Federal Utility Partnership Working Group (FUPWG) meeting—about the Federal Energy Management Program's (FEMP's) High-Tech Building Utility Energy Service Contract (UESC) Partnership led by the Lawrence Berkeley National Laboratory (LBNL).

266

High-Level Waste Requirements  

Directives, Delegations, and Requirements

The guide provides the criteria for determining which DOE radioactive wastes are to be managed as high-level waste in accordance with DOE M 435.1-1.

1999-07-09T23:59:59.000Z

267

Philosophy 26 High Temperature Superconductivity  

E-Print Network (OSTI)

is the ratio of voltage to current. The resistance of a material tells us how a low resistance, and they are therefore good conductors; other materials, likePhilosophy 26 High Temperature Superconductivity By Ohm's Law, resistance

Callender, Craig

268

High-frequency discharges III  

Science Journals Connector (OSTI)

We start with a comparison of advantages and disadvantages of capacitively coupled discharges, by which it becomes obvious why and how the semiconductor industry has triggered the demand for high-density plasm...

Prof.Dr. Gerhard Franz

2009-01-01T23:59:59.000Z

269

Research in High Energy Physics  

SciTech Connect

This final report details the work done from January 2010 until April 2013 in the area of experimental and theoretical high energy particle physics and cosmology at the University of California, Davis.

Conway, John S.

2013-08-09T23:59:59.000Z

270

High-Throughput Detection of West Nile Virus RNA  

Science Journals Connector (OSTI)

...increased the amplification efficiency. However, we found...increase the amplification efficiency in assays targeting...Forster Zwischenmolekulare energy-wanderung und fluoreszenz...France . J. R. Lakowicz Energy transfer . R. S. Lanciotti...Isolation from human sera in Egypt of a virus apparently...

Pei-Yong Shi; Elizabeth B. Kauffman; Ping Ren; Andy Felton; Jennifer H. Tai; Alan P. Dupuis II; Susan A. Jones; Kiet A. Ngo; David C. Nicholas; Joseph Maffei; Gregory D. Ebel; Kristen A. Bernard; Laura D. Kramer

2001-04-01T23:59:59.000Z

271

High resolution, high rate x-ray spectrometer  

DOE Patents (OSTI)

It is an object of the invention to provide a pulse processing system for use with detected signals of a wide dynamic range which is capable of very high counting rates, with high throughput, with excellent energy resolution and a high signal-to-noise ratio. It is a further object to provide a pulse processing system wherein the fast channel resolving time is quite short and substantially independent of the energy of the detected signals. Another object is to provide a pulse processing system having a pile-up rejector circuit which will allow the maximum number of non-interfering pulses to be passed to the output. It is also an object of the invention to provide new methods for generating substantially symmetrically triangular pulses for use in both the main and fast channels of a pulse processing system.

Goulding, F.S.; Landis, D.A.

1983-07-14T23:59:59.000Z

272

High modulus carbon fiber/titanium laminates  

E-Print Network (OSTI)

Titanium has been used to meet ever-stricter standards for high-temperature performance, creep resistance, low weight and high strength. Having low density, a high melting point, and high tensile strength, it seems like ...

Tsang, Lina

2006-01-01T23:59:59.000Z

273

High pressure synthesis gas conversion. Task 3: High pressure profiles  

SciTech Connect

The purpose of this research project was to build and test a high pressure fermentation system for the production of ethanol from synthesis gas. The fermenters, pumps, controls, and analytical system were procured or fabricated and assembled in our laboratory. This system was then used to determine the effects of high pressure on growth and ethanol production by C. 1jungdahlii. The limits of cell concentration and mass transport relationships were found in CSTR and immobilized cell reactors (ICR). The minimum retention times and reactor volumes were found for ethanol production in these reactors.

Not Available

1993-05-01T23:59:59.000Z

274

High-brightness, high-current ion sources  

SciTech Connect

Several existing high-current dc ion sources are presented that yield positive ions and are based on gas discharges. Their common features are then outlined: extraction systems, required plasma qualities, and the production of ions from solid materials. Finally, from well-established laws, scaling rules for high-brightness ion beams are derived taking one specific case to determine the numerical constants. These rules predict that the current values of transportable beams scale proportionally to the 3/2 power of the extraction voltage, whereas the brightness strongly decreases with rising voltage.

Keller, R.

1985-01-01T23:59:59.000Z

275

Materials Characterization Capabilities at the High Temperature...  

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

Characterization Capabilities at the High Temperature Materials Laboratory: Focus on Carbon Fiber and Composites Materials Characterization Capabilities at the High...

276

High frequency and high dynamic range continuous time filters  

E-Print Network (OSTI)

subscriber line (ADSL), very high bit rate DSL (VDSL) and power line communications (PLC). However, a major challenge is the design of the analog frontend; for these systems a large dynamic range is required due to the significant peak to average ratio...

Lewinski Komincz, Artur Juliusz

2007-09-17T23:59:59.000Z

277

PACIFIC HIGHLY MIGR ATORY PEL AGIC FISHERIES pacific highly migratory  

E-Print Network (OSTI)

the Pacific Ocean, from the tropics to temperate latitudes. Many of these fishes routinely travel great highly migratory species throughout the Pacific Ocean. Some of the fleets are capable of operating across the Pacific as well as in other oceans during a single fishing season. These fleets use larger purse

278

High Pressure Hydrogen Tank Manufacturing  

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

Workshop Workshop High Pressure Hydrogen Tank Manufacturing Mark Leavitt Quantum Fuel Systems Technologies Worldwide, Inc. August 11, 2011 This presentation does not contain any proprietary, confidential, or otherwise restricted information History of Innovations... Announced breakthrough in all-composite lightweight, high capacity, low-cost fuel storage technologies. * Developed a series of robust, OEM compatible electronic control products. Developed H 2 storage system for SunLine Tran-sit Hythane® bus. Awarded patent for integrated module including in-tank regulator * Developed high efficiency H 2 fuel storage systems for DOE Future Truck programs Developed H 2 storage and metering system for Toyota's FCEV platform. First to certify 10,000 psi systems in Japan

279

Detonation probabilities of high explosives  

SciTech Connect

The probability of a high explosive violent reaction (HEVR) following various events is an extremely important aspect of estimating accident-sequence frequency for nuclear weapons dismantlement. In this paper, we describe the development of response curves for insults to PBX 9404, a conventional high-performance explosive used in US weapons. The insults during dismantlement include drops of high explosive (HE), strikes of tools and components on HE, and abrasion of the explosive. In the case of drops, we combine available test data on HEVRs and the results of flooring certification tests to estimate the HEVR probability. For other insults, it was necessary to use expert opinion. We describe the expert solicitation process and the methods used to consolidate the responses. The HEVR probabilities obtained from both approaches are compared.

Eisenhawer, S.W.; Bott, T.F.; Bement, T.R.

1995-07-01T23:59:59.000Z

280

High-let radiation carcinogenesis  

SciTech Connect

Recent results for neutron radiation-induced tumors are presented to illustrate the complexities of the dose-response curves for high-LET radiation. It is suggested that in order to derive an appropriate model for dose-response curves for the induction of tumors by high-LET radiation it is necessary to take into account dose distribution, cell killing and the susceptibility of the tissue under study. Preliminary results for the induction of Harderian gland tumors in mice exposed to various heavy ion beams are presented. The results suggest that the effectiveness of the heavy ion beams increases with increasing LET. The slopes of the dose-response curves for the different high-LET radiations decrease between 20 and 40 rads and therefore comparisons of the relative effectiveness should be made from data obtained at doses below about 20 to 30 rads.

Fry, R.J.M.; Powers-Risius, P.; Alpen, E.L.; Ainsworth, E.J.; Ullrich, R.L.

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "high apparent hurdle" 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

Electrokinetic high pressure hydraulic system  

DOE Patents (OSTI)

An electrokinetic high pressure hydraulic pump for manipulating fluids in capillary-based systems. The pump uses electro-osmotic flow to provide a high pressure hydraulic system, having no moving mechanical parts, for pumping and/or compressing fluids, for providing valve means and means for opening and closing valves, for controlling fluid flow rate, and manipulating fluid flow generally and in capillary-based systems (Microsystems), in particular. The compact nature of the inventive high pressure hydraulic pump provides the ability to construct a micro-scale or capillary-based HPLC system that fulfills the desire for small sample quantity, low solvent consumption, improved efficiency, the ability to run samples in parallel, and field portability. Control of pressure and solvent flow rate is achieved by controlling the voltage applied to an electrokinetic pump.

Paul, Phillip H. (Livermore, CA); Rakestraw, David J. (Fremont, CA); Arnold, Don W. (Livermore, CA); Hencken, Kenneth R. (Pleasanton, CA); Schoeniger, Joseph S. (Oakland, CA); Neyer, David W. (Castro Valley, CA)

2001-01-01T23:59:59.000Z

282

High Field Magnetic Resonance Facility  

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

HFMRF Overview HFMRF Overview Section 2-3-1 High Field Magnetic Resonance Facility The High Field Magnetic Resonance Facility (HFMRF) focuses a significant portion of its research on developing a fundamental, molecular-level understanding of biochemical and biological systems and their response to environmental effects. A secondary focus is materials science, including catalysis and chemical mechanisms and processes. Staff and science consultants within this facility offer expertise in the areas of structural biology, solid-state materials characterization, and magnetic resonance imaging (MRI) techniques. Research activities in the HFMRF include: * structure determination of large molecular assemblies such as protein-DNA (normal and damaged DNA) and protein-RNA complexes

283

High Temperature Optical Gas Sensing  

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

Optical Gas Sensing Optical Gas Sensing Opportunity Research is active on optical sensors integrated with advanced sensing materials for high temperature embedded gas sensing applications. Patent applications have been filed for two inventions in this area and several other methods are currently under development. These technologies are available for licensing and/or further collaborative research from the U.S. Department of Energy's National Energy Technology Laboratory (NETL). Organizations or individuals with capabilities in optical sensor packaging for harsh environment and high temperature applications are encouraged to contact NETL to explore potential collaborative opportunities. Overview Contact NETL Technology Transfer Group techtransfer@netl.doe.gov

284

High temperature superconductor current leads  

DOE Patents (OSTI)

An electrical lead is disclosed having one end for connection to an apparatus in a cryogenic environment and the other end for connection to an apparatus outside the cryogenic environment. The electrical lead includes a high temperature superconductor wire and an electrically conductive material distributed therein, where the conductive material is present at the one end of the lead at a concentration in the range of from 0 to about 3% by volume, and at the other end of the lead at a concentration of less than about 20% by volume. Various embodiments are shown for groups of high temperature superconductor wires and sheaths. 9 figs.

Hull, J.R.; Poeppel, R.B.

1995-06-20T23:59:59.000Z

285

Modeling high-genus surfaces  

E-Print Network (OSTI)

, with the large number of holes in the casing for heat dissipation. Figure 4 shows some examples of such objects. 5 Fig. 4. Examples of man-made high-genus objects. I.4. High-genus objects from mathematics In the last two decades, fractal geometry has emerged... as one of the major mathemati- cal approaches for designing unusual 3D shapes. Examples of such shapes introduced by fractal geometry include the Sierpinski gasket, the Menger sponge, the Mandelbrot set and Julia sets [27]. Fractal geometry shapes...

Srinivasan, Vinod

2004-09-30T23:59:59.000Z

286

Processes yielding high superconducting temperatures  

SciTech Connect

It is pointed out that any microscopic description of the new high-T/sub c/ superconductors should take into account a number of important points concerning strong couplings, whatever their nature: absence of the MacMillan limit, absence of a Migdal theorem, and importance of the Brovman-Kagan type of vertices with different singularities depending on the dimensionality. As a consequence, the applicability of standard techniques such as the Eliashberg theory in particular, may be questioned in high-T/sub c/ superconductors.

Beal-Monod, M.T.

1987-12-01T23:59:59.000Z

287

ABBGroup-1-High voltage lab  

E-Print Network (OSTI)

;©ABBGroup-3- 3-Sep-07 Where does one use circuit breakers? High voltage (HV) circuit breakers are keyA DISTRIBUTION MEDIUM AND LOW VOLTAGE HV circuit breakers #12;©ABBGroup-4- 3-Sep-07 When a breaker fails to interrupt the current... Fault arc at a disconnector Fault arc in a substation #12;©ABBGroup-5- 3-Sep-07

Basse, Nils Plesner

288

Removing High Explosives from Groundwater  

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

LOS ALAMOS, N.M. – In an initiative supported by EM, Los Alamos National Laboratory’s Corrective Actions Program is addressing high explosive contamination in surface water and groundwater at a location this summer in the forests surrounding the laboratory.

289

High precision redundant robotic manipulator  

DOE Patents (OSTI)

A high precision redundant robotic manipulator for overcoming contents imposed by obstacles or imposed by a highly congested work space. One embodiment of the manipulator has four degrees of freedom and another embodiment has seven degreed of freedom. Each of the embodiments utilize a first selective compliant assembly robot arm (SCARA) configuration to provide high stiffness in the vertical plane, a second SCARA configuration to provide high stiffness in the horizontal plane. The seven degree of freedom embodiment also utilizes kinematic redundancy to provide the capability of avoiding obstacles that lie between the base of the manipulator and the end effector or link of the manipulator. These additional three degrees of freedom are added at the wrist link of the manipulator to provide pitch, yaw and roll. The seven degrees of freedom embodiment uses one revolute point per degree of freedom. For each of the revolute joints, a harmonic gear coupled to an electric motor is introduced, and together with properly designed based servo controllers provide an end point repeatability of less than 10 microns.

Young, Kar-Keung David (Mountain View, CA)

1998-01-01T23:59:59.000Z

290

High precision redundant robotic manipulator  

DOE Patents (OSTI)

A high precision redundant robotic manipulator for overcoming contents imposed by obstacles or imposed by a highly congested work space is disclosed. One embodiment of the manipulator has four degrees of freedom and another embodiment has seven degrees of freedom. Each of the embodiments utilize a first selective compliant assembly robot arm (SCARA) configuration to provide high stiffness in the vertical plane, a second SCARA configuration to provide high stiffness in the horizontal plane. The seven degree of freedom embodiment also utilizes kinematic redundancy to provide the capability of avoiding obstacles that lie between the base of the manipulator and the end effector or link of the manipulator. These additional three degrees of freedom are added at the wrist link of the manipulator to provide pitch, yaw and roll. The seven degrees of freedom embodiment uses one revolute point per degree of freedom. For each of the revolute joints, a harmonic gear coupled to an electric motor is introduced, and together with properly designed based servo controllers provide an end point repeatability of less than 10 microns. 3 figs.

Young, K.K.D.

1998-09-22T23:59:59.000Z

291

High Performance Outdoor Lighting Accelerator  

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

Hosted by the U.S. Department of Energy (DOE)’s Weatherization and Intergovernmental Programs Office (WIPO), this webinar covered the expansion of the Better Buildings platform to include the newest initiative for the public sector: the High Performance Outdoor Lighting Accelerator (HPOLA).

292

High temperature turbine engine structure  

DOE Patents (OSTI)

A high temperature turbine engine includes a rotor portion having axially stacked adjacent ceramic rotor parts. A ceramic/ceramic joint structure transmits torque between the rotor parts while maintaining coaxial alignment and axially spaced mutually parallel relation thereof despite thermal and centrifugal cycling.

Boyd, Gary L. (Tempe, AZ)

1991-01-01T23:59:59.000Z

293

Joyce Eveland Oskaloosa High School  

E-Print Network (OSTI)

Cooker As we are beginning conic sections I assign the students a project to build a solar cooker by researching solar cookers and forming teams of three to four students. During this time they are instructedJoyce Eveland Oskaloosa High School evelandj@oskaloosa.k12.ia.us Parabolic Solar

294

Architecture: Watch on High Buildings  

Science Journals Connector (OSTI)

... England and Wales, would like to see a firm policy for the control of high buildings in London. The commissioners, who include Mr John Betjeman, Sir Hugh Casson, Lord ... that there are increasing pressures on the local authorities in London for planning consent for buildings above what used to be considered normal height limits, and there has been a ...

1969-04-12T23:59:59.000Z

295

Synthesis of Highly Efficient Flame Retardant High-Density Polyethylene Nanocomposites with Inorgano-Layered Double  

E-Print Network (OSTI)

Synthesis of Highly Efficient Flame Retardant High-Density Polyethylene Nanocomposites, Harbin 150080, P. R. China ABSTRACT: High-density polyethylene (HDPE) polymer nanocomposites containing. INTRODUCTION High density polyethylene (HDPE) has good electrical proper- ties, high stiffness, and tensile

Guo, John Zhanhu

296

Develop high energy high power Li-ion battery cathode materials : a first principles computational study  

E-Print Network (OSTI)

develop the high energy high power cathode materials for LIBNew Cathode Material for Batteries of High- Energy Density.High Energy High Power Li-ion Battery Cathode Materials A

Xu, Bo; Xu, Bo

2012-01-01T23:59:59.000Z

297

NOVEL REFRACTORY MATERIALS FOR HIGH ALKALI, HIGH TEMPERATURE ENVIRONMENTS  

SciTech Connect

Refractory materials can be limited in their application by many factors including chemical reactions between the service environment and the refractory material, mechanical degradation of the refractory material by the service environment, temperature limitations on the use of a particular refractory material, and the inability to install or repair the refractory material in a cost effective manner or while the vessel was in service. The objective of this project was to address the need for new innovative refractory compositions by developing a family of novel MgO-Al 2O3 spinel or other similar magnesia/alumina containing unshaped refractory composition (castables, gunnables, shotcretes, etc) utilizing new aggregate materials, bond systems, protective coatings, and phase formation techniques (in-situ phase formation, altered conversion temperatures, accelerated reactions, etc). This family of refractory compositions would then be tailored for use in high-temperature, high-alkaline industrial environments like those found in the aluminum, chemical, forest products, glass, and steel industries.

Hemrick, James Gordon [ORNL

2011-09-01T23:59:59.000Z

298

High-sensitivity, high-speed continuous imaging system  

DOE Patents (OSTI)

A continuous imaging system for recording low levels of light typically extending over small distances with high-frame rates and with a large number of frames is described. Photodiode pixels disposed in an array having a chosen geometry, each pixel having a dedicated amplifier, analog-to-digital convertor, and memory, provide parallel operation of the system. When combined with a plurality of scintillators responsive to a selected source of radiation, in a scintillator array, the light from each scintillator being directed to a single corresponding photodiode in close proximity or lens-coupled thereto, embodiments of the present imaging system may provide images of x-ray, gamma ray, proton, and neutron sources with high efficiency.

Watson, Scott A; Bender, III, Howard A

2014-11-18T23:59:59.000Z

299

High energy resolution, high angular acceptance crystal monochromator  

DOE Patents (OSTI)

A 4-bounce dispersive crystal monochromator reduces the bandpass of synchrotron radiation to a 10-50 meV range without sacrificing angular acceptance. The monochromator includes the combination of an asymmetrical channel-cut single crystal of lower order reflection and a symmetrical channel-cut single crystal of higher order reflection in a nested geometric configuration. In the disclosed embodiment, a highly asymmetrically cut (.alpha.=20) outer silicon crystal (4 2 2) with low order reflection is combined with a symmetrically cut inner silicon crystal (10 6 4) with high order reflection to condition a hard x-ray component (5-30 keV) of synchrotron radiation down to the .mu.eV-neV level. Each of the crystals is coupled to the combination of a positioning inchworm and angle encoder via a respective rotation stage for accurate relative positioning of the crystals and precise energy tuning of the monochromator.

Alp, Ercan E. (Bolingbrook, IL); Mooney, Timothy M. (Westmont, IL); Toellner, Thomas (Green Bay, WI)

1996-06-04T23:59:59.000Z

300

High performance internal reforming unit for high temperature fuel cells  

DOE Patents (OSTI)

A fuel reformer having an enclosure with first and second opposing surfaces, a sidewall connecting the first and second opposing surfaces and an inlet port and an outlet port in the sidewall. A plate assembly supporting a catalyst and baffles are also disposed in the enclosure. A main baffle extends into the enclosure from a point of the sidewall between the inlet and outlet ports. The main baffle cooperates with the enclosure and the plate assembly to establish a path for the flow of fuel gas through the reformer from the inlet port to the outlet port. At least a first directing baffle extends in the enclosure from one of the sidewall and the main baffle and cooperates with the plate assembly and the enclosure to alter the gas flow path. Desired graded catalyst loading pattern has been defined for optimized thermal management for the internal reforming high temperature fuel cells so as to achieve high cell performance.

Ma, Zhiwen (Sandy Hook, CT); Venkataraman, Ramakrishnan (New Milford, CT); Novacco, Lawrence J. (Brookfield, CT)

2008-10-07T23:59:59.000Z

Note: This page contains sample records for the topic "high apparent hurdle" 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

Assessment of microelectronics packaging for high temperature, high reliability applications  

SciTech Connect

This report details characterization and development activities in electronic packaging for high temperature applications. This project was conducted through a Department of Energy sponsored Cooperative Research and Development Agreement between Sandia National Laboratories and General Motors. Even though the target application of this collaborative effort is an automotive electronic throttle control system which would be located in the engine compartment, results of this work are directly applicable to Sandia`s national security mission. The component count associated with the throttle control dictates the use of high density packaging not offered by conventional surface mount. An enabling packaging technology was selected and thermal models defined which characterized the thermal and mechanical response of the throttle control module. These models were used to optimize thick film multichip module design, characterize the thermal signatures of the electronic components inside the module, and to determine the temperature field and resulting thermal stresses under conditions that may be encountered during the operational life of the throttle control module. Because the need to use unpackaged devices limits the level of testing that can be performed either at the wafer level or as individual dice, an approach to assure a high level of reliability of the unpackaged components was formulated. Component assembly and interconnect technologies were also evaluated and characterized for high temperature applications. Electrical, mechanical and chemical characterizations of enabling die and component attach technologies were performed. Additionally, studies were conducted to assess the performance and reliability of gold and aluminum wire bonding to thick film conductor inks. Kinetic models were developed and validated to estimate wire bond reliability.

Uribe, F.

1997-04-01T23:59:59.000Z

302

High-Throughput Screening Techniques  

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

Throughput Throughput Screening Techniques for Biomass Conversion Stephen R. Decker & Roman Brunecky & Melvin P. Tucker & Michael E. Himmel & Michael J. Selig Published online: 14 October 2009 # US Government 2009 Abstract High-throughput (HTP) screening of biomass or biomass-degrading enzymes, regardless of the desired outcome, is fraught with obstacles and challenges not typically faced in more traditional biotechnology. The enzyme systems are complex and synergistic and the substrate is highly heterogeneous, insoluble, and difficult to dispense. Digestions are often carried out for days at temperatures of 50°C or higher, leading to significant challenges regarding evaporation control in small well volumes. Furthermore, it is often desirable to condition or "pretreat" the biomass at extreme temperatures and/or pH to enhance enzyme digestibility.

303

Radiometry High Spectral Resolution Fourier  

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

High Spectral Resolution Fourier High Spectral Resolution Fourier Transform Infrared Instruments for the Atmospheric Radiation Measurement Program H. E. Revercomb, W. L. Smith, R. O. Knuteson, F. A. Best, R. G. Dedecker, T. P. Dirkx, R. A. Herbsleb, and J. F. Short University of Wisconsin Madison, Wisconsin H. B. Howell National Oceanic and Atmospheric Administration Systems Design and Applications Branch Madison, Wisconsin D. Murcray and F. Murcray University of Denver Denver, Colorado Accurate and spectrally detailed observations of the thermal emission from radiatively important atmospheric gases, aerosols, and clouds have been identified as crucial for realizing the overall objectives of the Atmospheric Radiation Measurement (ARM) Program to improve the treatment of radiation and clouds in climate models. The observed

304

High Capacity Immobilized Amine Sorbents  

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

Capacity Immobilized Amine Sorbents Capacity Immobilized Amine Sorbents Opportunity The Department of Energy's National Energy Technology Laboratory is seeking licensing partners interested in implementing United States Patent Number 7,288,136 entitled "High Capacity Immobilized Amine Sorbents." Disclosed in this patent is the invention of a method that facilitates the production of low-cost carbon dioxide (CO 2 ) sorbents for use in large-scale gas-solid processes. This method treats an amine to increase the number of secondary amine groups and impregnates the amine in a porous solid support. As a result of this improvement, the method increases CO 2 capture capacity and decreases the cost of using an amine-enriched solid sorbent in CO 2 capture systems. Overview The U.S. Department of Energy has placed a high priority on the separation

305

High Mesa | Open Energy Information  

Open Energy Info (EERE)

Mesa Mesa Jump to: navigation, search Name High Mesa Facility High Mesa Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Exelon Wind Developer Exelon Wind Energy Purchaser Idaho Power Location Bliss ID Coordinates 42.88797667°, -115.0169849° 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":42.88797667,"lon":-115.0169849,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

306

High-contrast imaging testbed  

SciTech Connect

Several high-contrast imaging systems are currently under construction to enable the detection of extra-solar planets. In order for these systems to achieve their objectives, however, there is considerable developmental work and testing which must take place. Given the need to perform these tests, a spatially-filtered Shack-Hartmann adaptive optics system has been assembled to evaluate new algorithms and hardware configurations which will be implemented in these future high-contrast imaging systems. In this article, construction and phase measurements of a membrane 'woofer' mirror are presented. In addition, results from closed-loop operation of the assembled testbed with static phase plates are presented. The testbed is currently being upgraded to enable operation at speeds approaching 500 hz and to enable studies of the interactions between the woofer and tweeter deformable mirrors.

Baker, K; Silva, D; Poyneer, L; Macintosh, B; Bauman, B; Palmer, D; Remington, T; Delgadillo-Lariz, M

2008-01-23T23:59:59.000Z

307

Extended sudden approximation modeling of high-energy nucleon-removal reactions  

Science Journals Connector (OSTI)

Calculations based on the sudden approximation have been performed to describe high-energy single-nucleon removal reactions. Within this approach, which takes as its starting point the formalism developed to describe the breakup of well-developed single-neutron halo systems, the nucleon-removal cross section and the full three-dimensional momentum distributions of the core fragments, including absorption, diffraction, Coulomb, and nuclear-Coulomb interference amplitudes, have been computed. The Coulomb, breakup has been treated to all orders for the dipole interaction. The results are compared here to experimental data for a range of light, neutron-rich psd-shell nuclei taken at beam energies of 43–68MeV?nucleon. Good agreement is found for the inclusive cross sections and both the longitudinal and transverse momentum distributions. In the case of C17, comparison is also made with the results of calculations using the transfer-to-the-continuum model. The three-dimensional momentum distributions computed within the sudden approximation model exhibit longitudinal and transverse momentum components that are strongly coupled by the reaction for s-wave states, while no such effect is apparent for d waves. Incomplete detection of transverse momenta arising from limited experimental acceptances thus leads to a narrowing of the longitudinal distributions for nuclei with significant s-wave valence neutron configurations, as confirmed by the data. Asymmetries in the longitudinal momentum distributions attributed to diffractive dissociation are also explored.

F. Carstoiu; E. Sauvan; N. A. Orr; A. Bonaccorso

2004-11-04T23:59:59.000Z

308

Pitting resistance of Alloy 800 as a function of temperature and prefilming in high temperature water  

SciTech Connect

The pitting behavior of Alloy 800 was investigated as a function of temperature and prefilming in high temperature water. The pitting behavior was characterized in terms of the pitting potential and the pit density. The pitting potential decreases with increasing temperature and chloride activity. Prefilming of test coupons over a time period between 100 and 5,000 hours in ammoniated water at 300 C has no apparent influence on the pitting potential at room temperature, 180 C and 300 C. However, the number of pits in prefilmed coupons is much higher than in coupons covered with an air passive layer. The effect of prefilming on pit nucleation was investigated in more detail with regard to a model and test methods developed by Bianchi and co-workers. Density of pits in prefilmed coupons is at least one order of magnitude higher than in air passive coupons. Maximum pit density was measured after a prefilming period of 1 00 hours. The effect is discussed in terms of Bianchi`s model and in terms of features of passive films. It is outlined that the initially amorphous metastable passive film on Alloy 800 becomes crystalline at increased temperatures. Crystallization induces lattice defects, such as dislocations and grain boundaries, in the passive film. The film grows and slowly transforms into a thick oxide layer. The transformation process is associated with enhanced susceptibility to pit nucleation.

Stellwag, B. [Siemens Power Generation, Erlangen (Germany)

1995-12-31T23:59:59.000Z

309

On the ultra high energy cosmic rays and the origin of the cosmic microwave background radiation  

E-Print Network (OSTI)

Some inconsistencies to the assumption of a cosmological origin of the cosmic microwave background CMB, such as the absence of gravitational lensing in the WMAP data, open the doors to some speculations such as a local origin to the CMB. We argue here that this assumption agrees with the absence of the GZK cutoff (at least according to AGASA data) in the energy spectrum of the cosmic ray due to the cosmic interaction with the CMB at $6\\times 10^{19} eV$ or above. Within 50 Mpc from Earth, the matter and light distributions are close to an anisotropic distribution, where the local cluster and local super-clusters of galaxies can be identified. In contrast, the ultra high energy comic rays data is consistent to an almost isotropic distribution, and there is no correlation between their arrival direction and astronomical sources within our local cluster. This means that the events above the GZK cutoff come from distances above 50 Mpc, without an apparent energy loss. This scenario is plausible under the assumption of the CMB concentrated only within 3-4 Mpc from Earth. In other words, the CMB has a local origin linked only to the local super-cluster of galaxies. In addition, the galactic and extragalactic energy spectra index within the energy equipartition theorem strongly constrains the dark matter and dark energy hypothesis, essential in the Big Bang cosmology.

C. E. Navia; C. R. A. Augusto; K. H. Tsui

2007-07-12T23:59:59.000Z

310

High power gas laser amplifier  

DOE Patents (OSTI)

A high power output CO.sub.2 gas laser amplifier having a number of sections, each comprising a plurality of annular pumping chambers spaced around the circumference of a vacuum chamber containing a cold cathode, gridded electron gun. The electron beam from the electron gun ionizes the gas lasing medium in the sections. An input laser beam is split into a plurality of annular beams, each passing through the sections comprising one pumping chamber.

Leland, Wallace T. (Los Alamos, NM); Stratton, Thomas F. (Los Alamos, NM)

1981-01-01T23:59:59.000Z

311

Cosmology for high energy physicists  

SciTech Connect

The standard big bang model of cosmology is presented. Although not perfect, its many successes make it a good starting point for most discussions of cosmology. Places are indicated where well understood laboratory physics is incorporated into the big bang, leading to successful predictions. Much less established aspects of high energy physics and some of the new ideas they have introduced into the field of cosmology are discussed, such as string theory, inflation and monopoles. 49 refs., 5 figs.

Albrecht, A.

1987-11-01T23:59:59.000Z

312

High temperature turbine engine structure  

DOE Patents (OSTI)

A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

Carruthers, William D. (Mesa, AZ); Boyd, Gary L. (Tempe, AZ)

1994-01-01T23:59:59.000Z

313

High temperature turbine engine structure  

DOE Patents (OSTI)

A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

Carruthers, William D. (Mesa, AZ); Boyd, Gary L. (Tempe, AZ)

1993-01-01T23:59:59.000Z

314

High temperature turbine engine structure  

DOE Patents (OSTI)

A high temperature ceramic/metallic turbine engine includes a metallic housing which journals a rotor member of the turbine engine. A ceramic disk-like shroud portion of the engine is supported on the metallic housing portion and maintains a close running clearance with the rotor member. A ceramic spacer assembly maintains the close running clearance of the shroud portion and rotor member despite differential thermal movements between the shroud portion and metallic housing portion.

Carruthers, William D. (Mesa, AZ); Boyd, Gary L. (Tempe, AZ)

1992-01-01T23:59:59.000Z

315

High-performance, high-volume fly ash concrete  

SciTech Connect

This booklet offers the construction professional an in-depth description of the use of high-volume fly ash in concrete. Emphasis is placed on the need for increased utilization of coal-fired power plant byproducts in lieu of Portland cement materials to eliminate increased CO{sub 2} emissions during the production of cement. Also addressed is the dramatic increase in concrete performance with the use of 50+ percent fly ash volume. The booklet contains numerous color and black and white photos, charts of test results, mixtures and comparisons, and several HVFA case studies.

NONE

2008-01-15T23:59:59.000Z

316

Army High Performance Computing Research Center  

E-Print Network (OSTI)

Army High Performance Computing Research Center Applying advanced computational science research challenges http://me.stanford.edu/research/centers/ahpcrc #12;Army High Performance Computing challenges http://me.stanford.edu/research/centers/ahpcrc #12;Army High Performance Computing Research

Prinz, Friedrich B.

317

High Temperature Mechanical Properties as Design Parameters  

Science Journals Connector (OSTI)

...corrosion resistance or high proof strength...development of more efficient power plant, process...Figure 2 shows a high temperature bolt...S.O.) of a Boiler Code (I968...power plant for high temperature pipework, boiler headers, valve...

1976-01-01T23:59:59.000Z

318

PRACTICAL NEUTRON DOSIMETRY AT HIGH ENERGIES  

E-Print Network (OSTI)

of High-Energy Accelerators, New York, April, 1957. USAECShielding of High-Energy Accelerators, New York, April 1957.Shielding of High-Energy Accelerators, New York, April 1957.

McCaslin, J.B.

2010-01-01T23:59:59.000Z

319

Proposal for a High Energy Nuclear Database  

E-Print Network (OSTI)

Proposal for a High Energy Nuclear Database David A. Brown 1it requires the high-energy nuclear physics com- munity’s ?compilations of high-energy nuclear data for applications

Brown, David A.; Vogt, Ramona

2005-01-01T23:59:59.000Z

320

Advanced High-Temperature, High-Pressure Transport Reactor Gasification  

SciTech Connect

The U.S. Department of Energy (DOE) National Energy Technology Laboratory Office of Coal and Environmental Systems has as its mission to develop advanced gasification-based technologies for affordable, efficient, zero-emission power generation. These advanced power systems, which are expected to produce near-zero pollutants, are an integral part of DOE's Vision 21 Program. DOE has also been developing advanced gasification systems that lower the capital and operating costs of producing syngas for chemical production. A transport reactor has shown potential to be a low-cost syngas producer compared to other gasification systems since its high-throughput-per-unit cross-sectional area reduces capital costs. This work directly supports the Power Systems Development Facility utilizing the KBR transport reactor located at the Southern Company Services Wilsonville, Alabama, site. Over 2800 hours of operation on 11 different coals ranging from bituminous to lignite along with a petroleum coke has been completed to date in the pilot-scale transport reactor development unit (TRDU) at the Energy & Environmental Research Center (EERC). The EERC has established an extensive database on the operation of these various fuels in both air-blown and oxygen-blown modes utilizing a pilot-scale transport reactor gasifier. This database has been useful in determining the effectiveness of design changes on an advanced transport reactor gasifier and for determining the performance of various feedstocks in a transport reactor. The effects of different fuel types on both gasifier performance and the operation of the hot-gas filter system have been determined. It has been demonstrated that corrected fuel gas heating values ranging from 90 to 130 Btu/scf have been achieved in air-blown mode, while heating values up to 230 Btu/scf on a dry basis have been achieved in oxygen-blown mode. Carbon conversions up to 95% have also been obtained and are highly dependent on the oxygen-coal ratio. Higher-reactivity (low-rank) coals appear to perform better in a transport reactor than the less reactive bituminous coals. Factors that affect TRDU product gas quality appear to be coal type, temperature, and air/coal ratios. Testing with a higher-ash, high-moisture, low-rank coal from the Red Hills Mine of the Mississippi Lignite Mining Company has recently been completed. Testing with the lignite coal generated a fuel gas with acceptable heating value and a high carbon conversion, although some drying of the high-moisture lignite was required before coal-feeding problems were resolved. No ash deposition or bed material agglomeration issues were encountered with this fuel. In order to better understand the coal devolatilization and cracking chemistry occurring in the riser of the transport reactor, gas and solid sampling directly from the riser and the filter outlet has been accomplished. This was done using a baseline Powder River Basin subbituminous coal from the Peabody Energy North Antelope Rochelle Mine near Gillette, Wyoming.

Michael Swanson; Daniel Laudal

2008-03-31T23:59:59.000Z

Note: This page contains sample records for the topic "high apparent hurdle" 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

High Performance Sustainable Building - DOE Directives, Delegations...  

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

6A, High Performance Sustainable Building by Adam Pugh Functional areas: Program Management, Project Management This Guide provides approaches for implementing the High Performance...

322

Acid Doped Membranes for High Temperature PEMFC  

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

Presentation on Acid Doped Membranes for High Temperature PEMFC to the High Temperature Membrane Working Group, May 25, 2004 in Philadelphia, PA.

323

High performance computing Igal G. Rasin  

E-Print Network (OSTI)

High performance computing Igal G. Rasin Department of Chemical Engineering, Technion Israel with different parallelization techniques and tools used in high performance computing (HPC). The tutorial

Adler, Joan

324

Building America Webinar: High Performance Enclosure Strategies...  

Energy Savers (EERE)

II, New Construction - August 13, 2014 - Next Gen Advanced Framing for High Performance Homes Integrated System Solutions Building America Webinar: High Performance Enclosure...

325

Continuous Processing of High Thermal Conductivity Polyethylene...  

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

Processing of High Thermal Conductivity Polyethylene Fibers and Sheets Continuous Processing of High Thermal Conductivity Polyethylene Fibers and Sheets Massachusetts Institute of...

326

Building America Webinar: High Performance Space Conditioning...  

Energy Savers (EERE)

Kohta Ueno, Building Science Corporation. Kohta will discuss BSC's research on ductless heat pumps versus mini-splits being used in high performance (high R value enclosurelow...

327

Experiment Hazard Class 3 - High Temperatures  

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

Operation * APS Base Low Temperatures * Cryogenic Systems High Temperatures * Electric Furnace * Optical Furnace * Other High Temperature Lasers * Laser, Class 2 * Laser,...

328

HIGH INTEGRITY MAGNESIUM AUTOMOTIVE COMPONENTS (HIMAC) | Department...  

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

HIGH INTEGRITY MAGNESIUM AUTOMOTIVE COMPONENTS (HIMAC) HIGH INTEGRITY MAGNESIUM AUTOMOTIVE COMPONENTS (HIMAC) 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual...

329

High Voltage Electrolyte for Lithium Batteries  

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

battery using high voltage high energy cathode materials to enable large-scale, cost competitive production of the next generation of electric-drive vehicles. To...

330

High Energy Density Ultracapacitors | Department of Energy  

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

Program, and Vehicle Technologies Program Annual Merit Review and Peer Evaluation es038smith2011p.pdf More Documents & Publications High Energy Density Ultracapacitors High...

331

INSENSITIVE HIGH-NITROGEN COMPOUNDS  

SciTech Connect

The conventional approach to developing energetic molecules is to chemically place one or more nitro groups onto a carbon skeleton, which is why the term ''nitration'' is synonymous to explosives preparation. The nitro group carries the oxygen that reacts with the skeletal carbon and hydrogen fuels, which in turn produces the heat and gaseous reaction products necessary for driving an explosive shock. These nitro-containing energetic molecules typically have heats of formation near zero and therefore most of the released energy is derived from the combustion process. Our investigation of the tetrazine, furazan and tetrazole ring systems has offered a different approach to explosives development, where a significant amount of the chemical potential energy is derived from their large positive heats of formation. Because these compounds often contain a large percentage of nitrogen atoms, they are usually regarded as high-nitrogen fuels or explosives. A general artifact of these high-nitrogen compounds is that they are less sensitive to initiation (e.g. by impact) when compared to traditional nitro-containing explosives of similar performances. Using the precursor, 3,6-bis-(3,5-dimethylpyrazol-1-yl)-s-tetrazine, several useful energetic compounds based on the s-tetrazine system have been synthesized and studied. Some of the first compounds are 3,6-diamino-s-tetrazine-1,4-dioxide (LAX-112) and 3,6-dihydrazino-s-tetrazine (DHT). LAX-112 was once extensively studied as an insensitive explosive by Los Alamos; DHT is an example of a high-nitrogen explosive that relies entirely on its heat of formation for sustaining a detonation. Recent synthesis efforts have yielded an azo-s-tetrazine, 3,3'-azobis(6-amino-s-tetrazine) or DAAT, which has a very high positive heat of formation. The compounds, 4,4'-diamino-3,3'-azoxyfurazan (DAAF) and 4,4'-diamino-3,3'-azofurazan (DAAzF), may have important future roles in insensitive explosive applications. Neither DAAF nor DAAzF can be initiated by laboratory impact drop tests, yet both have in some aspects better explosive performances than 1,3,5-triamino-2,4,6-trinitrobenzene TATB--the standard of insensitive high explosives. The thermal stability of DAAzF is equal to that of hexanitrostilbene (HNS), yet it too is a better explosive performer. The recently discovered tetrazol derivative, 3,6-bis-(1H-1,2,3,4-tetrazol-5-ylamino)-s-tetrazine (BTATz) was measured to have exceptional positive heats of formation and to be insensitive to explosive initiation. Because of its high burn rate with low sensitivity to pressure, this material is of great interest to the propellant community.

D. CHAVEZ; ET AL

2001-03-01T23:59:59.000Z

332

High flux solar energy transformation  

DOE Patents (OSTI)

Disclosed are multi-stage systems for high flux transformation of solar energy allowing for uniform solar intensification by a factor of 60,000 suns or more. Preferred systems employ a focusing mirror as a primary concentrative device and a non-imaging concentrator as a secondary concentrative device with concentrative capacities of primary and secondary stages selected to provide for net solar flux intensification of greater than 2000 over 95 percent of the concentration area. Systems of the invention are readily applied as energy sources for laser pumping and in other photothermal energy utilization processes.

Winston, Roland (Chicago, IL); Gleckman, Philip L. (Chicago, IL); O'Gallagher, Joseph J. (Flossmoor, IL)

1991-04-09T23:59:59.000Z

333

High voltage RF feedthrough bushing  

DOE Patents (OSTI)

Described is a multi-element, high voltage radio frequency bushing for trmitting RF energy to an antenna located in a vacuum container. The bushing includes a center conductor of complex geometrical shape, an outer coaxial shield conductor, and a thin-walled hollow truncated cone insulator disposed between central and outer conductors. The shape of the center conductor, which includes a reverse curvature portion formed of a radially inwardly directed shoulder and a convex portion, controls the uniformity of the axial surface gradient on the insulator cone. The outer shield has a first substantially cylindrical portion and a second radially inwardly extending truncated cone portion.

Grotz, Glenn F. (Huntington Station, NY)

1984-01-01T23:59:59.000Z

334

High-energy Cosmic Rays  

E-Print Network (OSTI)

After a brief review of galactic cosmic rays in the GeV to TeV energy range, we describe some current problems of interest for particles of very high energy. Particularly interesting are two features of the spectrum, the `knee' above $10^{15}$ eV and the `ankle' above $10^{18}$ eV. An important question is whether the highest energy particles are of extra-galactic origin and, if so, at what energy the transition occurs. A theme common to all energy ranges is use of nuclear abundances as a tool for understanding the origin of the cosmic radiation.

Thomas K. Gaisser; Todor Stanev

2005-10-11T23:59:59.000Z

335

Highly asymmetric Laue focusing monochromator  

SciTech Connect

By using two highly asymmetric Laue crystals in a dispersive arrangement with a circular profile (Oe 8 mm) we have created a sagittaly focusing Laue system for the first time. The crystallographic planes (111) of the two Si crystals formed an angle of 7.95 deg. with the entrance surface. The crystals dimensions were 40 mmx20 mm and the diffracting surface was a 0.5 mm thick neck between the two circular profiles. The 15.35 keV diffracted beam formed an angle of 0.55 deg. with the exit surface. The calculated focusing distance of the Laue-Laue focusing system was 14 m.

Oberta, P. [Institute of Physics, Academy of Sciences of the Czech Republic v.v.i., Na Slovance 2, Praha 8 (Czech Republic); Swiss Light Source, Paul Scherrer Institut, Villigen (Switzerland); Mikulik, P. [Department of Condensed Matter Physics, Faculty of Science, Masaryk University, Kotlarska 2, Brno (Czech Republic); Hrdy, J.; Kittler, M. [Institute of Physics, Academy of Sciences of the Czech Republic v.v.i., Na Slovance 2, Praha 8 (Czech Republic)

2010-06-23T23:59:59.000Z

336

High- and low-temperature-stable thermite composition for producing high-pressure, high-velocity gases  

DOE Patents (OSTI)

A high- and low-temperature-stable thermite composition for producing high-pressure and high-velocity gases comprises an oxidizable metal, an oxidizing reagent, and a high-temperature-stable gas-producing additive selected from the group consisting of metal carbides and metal nitrides.

Halcomb, Danny L. (Camden, OH); Mohler, Jonathan H. (Spring Valley, OH)

1990-10-16T23:59:59.000Z

337

A UNIVERSAL, LOCAL STAR FORMATION LAW IN GALACTIC CLOUDS, NEARBY GALAXIES, HIGH-REDSHIFT DISKS, AND STARBURSTS  

SciTech Connect

Star formation laws are rules that relate the rate of star formation in a particular region, either an entire galaxy or some portion of it, to the properties of the gas, or other galactic properties, in that region. While observations of Local Group galaxies show a very simple, local star formation law in which the star formation rate per unit area in each patch of a galaxy scales linearly with the molecular gas surface density in that patch, recent observations of both Milky Way molecular clouds and high-redshift galaxies apparently show a more complicated relationship in which regions of equal molecular gas surface density can form stars at quite different rates. These data have been interpreted as implying either that different star formation laws may apply in different circumstances, that the star formation law is sensitive to large-scale galaxy properties rather than local properties, or that there are high-density thresholds for star formation. Here we collate observations of the relationship between gas and star formation rate from resolved observations of Milky Way molecular clouds, from kpc-scale observations of Local Group galaxies, and from unresolved observations of both disk and starburst galaxies in the local universe and at high redshift. We show that all of these data are in fact consistent with a simple, local, volumetric star formation law. The apparent variations stem from the fact that the observed objects have a wide variety of three-dimensional size scales and degrees of internal clumping, so even at fixed gas column density the regions being observed can have wildly varying volume densities. We provide a simple theoretical framework to remove this projection effect, and we use it to show that all the data, from small solar neighborhood clouds with masses {approx}10{sup 3} M{sub Sun} to submillimeter galaxies with masses {approx}10{sup 11} M{sub Sun }, fall on a single star formation law in which the star formation rate is simply {approx}1% of the molecular gas mass per local free-fall time. In contrast, proposed star formation laws in which the star formation timescale is set by the galactic rotation period are inconsistent with the data from the Milky Way and the Local Group, while those in which the star formation rate is linearly proportional to the gas mass above some density threshold fail both in the Local Group and for starburst galaxies.

Krumholz, Mark R. [Department of Astronomy, University of California, Santa Cruz, CA 95064 (United States); Dekel, Avishai [Racah Institute of Physics, Hebrew University, Jerusalem 91904 (Israel); McKee, Christopher F., E-mail: krumholz@ucolick.org, E-mail: dekel@phys.huji.ac.il, E-mail: cmckee@astro.berkeley.edu [Departments of Physics and Astronomy, University of California, Berkeley, CA 94720 (United States)

2012-01-20T23:59:59.000Z

338

High energy mode locked fiber oscillators for high contrast, high energy petawatt laser seed sources  

SciTech Connect

In a high-energy petawatt laser beam line the ASE pulse contrast is directly related to the total laser gain. Thus a more energetic input pulse will result in increased pulse contrast at the target. We have developed a mode-locked fiber laser with high quality pulses and energies exceeding 25nJ. We believe this 25nJ result is scalable to higher energies. This oscillator has no intra-cavity dispersion compensation, which yields an extremely simple, and elegant laser configuration. We will discuss the design of this laser, our most recent results and characterization of all the key parameters relevant to it use as a seed laser. Our oscillator is a ring cavity mode-locked fiber laser [1]. These lasers operate in a self-similar pulse propagation regime characterized by a spectrum that is almost square. This mode was found theoretically [2] to occur only in the positive dispersion regime. Further increasing positive dispersion should lead to increasing pulse energy [2]. We established that the positive dispersion required for high-energy operation was approximately that of 2m of fiber. To this end, we constructed a laser cavity similar to [1], but with no gratings and only 2m of fiber, which we cladding pumped in order to ensure sufficient pump power was available to achieve mode-locked operation. A schematic of the laser is shown in figure 1 below. This laser produced low noise 25nJ pulses with a broad self similar spectrum (figure 2) and pulses that could be de-chirped to <100fs (figure 3). Pulse contrast is important in peta-watt laser systems. A major contributor to pulse contrast is amplified spontaneous emission (ASE), which is proportional to the gain in the laser chain. As the oscillator strength is increased, the required gain to reach 1PW pulses is decreased, reducing ASE and improving pulse contrast. We believe these lasers can be scaled in a stable fashion to pulse energies as high as 100nJ and have in fact seen 60nJ briefly in our lab, which is work still in progress. At this level, even if the pulses are not perfect, post-oscillator pulse cleaning can be used to create a clean high energy pulse for injection into a peta-watt laser beam line.

Dawson, J W; Messerly, M J; An, J; Kim, D; Barty, C J

2006-06-15T23:59:59.000Z

339

High pressure ceramic heat exchanger  

DOE Patents (OSTI)

Many recuperators have components which react to corrosive gases and are used in applications where the donor fluid includes highly corrosive gases. These recuperators have suffered reduced life, increased service or maintenance, and resulted in increased cost. The present header assembly when used with recuperators reduces the brittle effect of a portion of the ceramic components. Thus, the present header assembly used with the present recuperator increases the life, reduces the service and maintenance, and reduces the increased cost associated with corrosive action of components used to manufacture recuperators. The present header assembly is comprised of a first ceramic member, a second ceramic member, a reinforcing member being in spaced relationship to the first ceramic member and the second ceramic member. The header assembly is further comprised of a refractory material disposed in contacting relationship with the first ceramic member, the second ceramic member and the reinforcing member and having a strengthening member wrapped around the refractory material. The present header assembly provides a high strength load bearing header assembly having good thermal cycling characteristics, good resistance to a corrosive environment and good steady state strength at elevated temperatures.

Harkins, Bruce D. (San Diego, CA); Ward, Michael E. (Poway, CA)

1999-01-01T23:59:59.000Z

340

High pressure ceramic heat exchanger  

DOE Patents (OSTI)

Many recuperators have components which react to corrosive gases and are used in applications where the donor fluid includes highly corrosive gases. These recuperators have suffered reduced life, increased service or maintenance, and resulted in increased cost. The present header assembly when used with recuperators reduces the brittle effect of a portion of the ceramic components. Thus, the present header assembly used with the present recuperator increases the life, reduces the service and maintenance, and reduces the increased cost associated with corrosive action of components used to manufacture recuperators. The present header assembly is comprised of a first ceramic member, a second ceramic member, a strengthening reinforcing member being in spaced relationship to the first ceramic member and the second ceramic member. The header assembly is further comprised of a refractory material disposed in contacting relationship with the first ceramic member, the second ceramic member and the strengthening reinforcing member. The present header assembly provides a high strength load bearing header assembly having good thermal cycling characteristics, good resistance to a corrosive environment and good steady state strength at elevated temperatures.

Harkins, Bruce D. (San Diego, CA); Ward, Michael E. (Poway, CA)

1998-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "high apparent hurdle" 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

High pressure ceramic heat exchanger  

DOE Patents (OSTI)

Many recuperators have components which react to corrosive gases and are used in applications where the donor fluid includes highly corrosive gases. These recuperators have suffered reduced life, increased service or maintenance, and resulted in increased cost. The present header assembly when used with recuperators reduces the brittle effect of a portion of the ceramic components. Thus, the present header assembly used with the present recuperator increases the life, reduces the service and maintenance, and reduces the increased cost associated with corrosive action of components used to manufacture recuperators. The present header assembly is comprised of a first ceramic member, a second ceramic member, a strengthening reinforcing member being in spaced relationship to the first ceramic member and the second ceramic member. The header assembly is further comprised of a refractory material disposed in contacting relationship with the first ceramic member, the second ceramic member and the strengthening reinforcing member. The present header assembly provides a high strength load bearing header assembly having good thermal cycling characteristics, good resistance to a corrosive environment and good steady state strength at elevated temperatures. 5 figs.

Harkins, B.D.; Ward, M.E.

1998-09-22T23:59:59.000Z

342

High speed imager test station  

DOE Patents (OSTI)

A test station enables the performance of a solid state imager (herein called a focal plane array or FPA) to be determined at high image frame rates. A programmable waveform generator is adapted to generate clock pulses at determinable rates for clock light-induced charges from a FPA. The FPA is mounted on an imager header board for placing the imager in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment. 12 figs.

Yates, G.J.; Albright, K.L.; Turko, B.T.

1995-11-14T23:59:59.000Z

343

High speed imager test station  

DOE Patents (OSTI)

A test station enables the performance of a solid state imager (herein called a focal plane array or FPA) to be determined at high image frame rates. A programmable waveform generator is adapted to generate clock pulses at determinable rates for clock light-induced charges from a FPA. The FPA is mounted on an imager header board for placing the imager in operable proximity to level shifters for receiving the clock pulses and outputting pulses effective to clock charge from the pixels forming the FPA. Each of the clock level shifters is driven by leading and trailing edge portions of the clock pulses to reduce power dissipation in the FPA. Analog circuits receive output charge pulses clocked from the FPA pixels. The analog circuits condition the charge pulses to cancel noise in the pulses and to determine and hold a peak value of the charge for digitizing. A high speed digitizer receives the peak signal value and outputs a digital representation of each one of the charge pulses. A video system then displays an image associated with the digital representation of the output charge pulses clocked from the FPA. In one embodiment, the FPA image is formatted to a standard video format for display on conventional video equipment.

Yates, George J. (Santa Fe, NM); Albright, Kevin L. (Los Alamos, NM); Turko, Bojan T. (Moraga, CA)

1995-01-01T23:59:59.000Z

344

Terascale Physics Opportunities at a High Statistics, High Energy Neutrino Scattering Experiment: NuSOnG  

E-Print Network (OSTI)

This article presents the physics case for a new high-energy, ultra-high statistics neutrino scattering

Adams, T.

345

Guide for High-Performance Buildings Available  

SciTech Connect

This article is an overview of the new "Sustainable, High-Performance Operations and Maintenance" guidelines.

Bartlett, Rosemarie

2012-10-01T23:59:59.000Z

346

What is high-dimensional combinatorics?  

E-Print Network (OSTI)

What is high-dimensional combinatorics? Nati Linial Random-Approx, August '08 Nati Linial What What is high-dimensional combinatorics? #12;So, what is the next frontier? Nati Linial What is high other mathematical sciences, theoretical or applied? Nati Linial What is high-dimensional combinatorics

Linial, Nathan "Nati"

347

Advanced High-Temperature, High-Pressure Transport Reactor Gasification  

SciTech Connect

The transport reactor development unit (TRDU) was modified to accommodate oxygen-blown operation in support of a Vision 21-type energy plex that could produce power, chemicals, and fuel. These modifications consisted of changing the loop seal design from a J-leg to an L-valve configuration, thereby increasing the mixing zone length and residence time. In addition, the standpipe, dipleg, and L-valve diameters were increased to reduce slugging caused by bubble formation in the lightly fluidized sections of the solid return legs. A seal pot was added to the bottom of the dipleg so that the level of solids in the standpipe could be operated independently of the dipleg return leg. A separate coal feed nozzle was added that could inject the coal upward into the outlet of the mixing zone, thereby precluding any chance of the fresh coal feed back-mixing into the oxidizing zone of the mixing zone; however, difficulties with this coal feed configuration led to a switch back to the original downward configuration. Instrumentation to measure and control the flow of oxygen and steam to the burner and mix zone ports was added to allow the TRDU to be operated under full oxygen-blown conditions. In total, ten test campaigns have been conducted under enriched-air or full oxygen-blown conditions. During these tests, 1515 hours of coal feed with 660 hours of air-blown gasification and 720 hours of enriched-air or oxygen-blown coal gasification were completed under this particular contract. During these tests, approximately 366 hours of operation with Wyodak, 123 hours with Navajo sub-bituminous coal, 143 hours with Illinois No. 6, 106 hours with SUFCo, 110 hours with Prater Creek, 48 hours with Calumet, and 134 hours with a Pittsburgh No. 8 bituminous coal were completed. In addition, 331 hours of operation on low-rank coals such as North Dakota lignite, Australian brown coal, and a 90:10 wt% mixture of lignite and wood waste were completed. Also included in these test campaigns was 50 hours of gasification on a petroleum coke from the Hunt Oil Refinery and an additional 73 hours of operation on a high-ash coal from India. Data from these tests indicate that while acceptable fuel gas heating value was achieved with these fuels, the transport gasifier performs better on the lower-rank feedstocks because of their higher char reactivity. Comparable carbon conversions have been achieved at similar oxygen/coal ratios for both air-blown and oxygen-blown operation for each fuel; however, carbon conversion was lower for the less reactive feedstocks. While separation of fines from the feed coals is not needed with this technology, some testing has suggested that feedstocks with higher levels of fines have resulted in reduced carbon conversion, presumably due to the inability of the finer carbon particles to be captured by the cyclones. These data show that these low-rank feedstocks provided similar fuel gas heating values; however, even among the high-reactivity low-rank coals, the carbon conversion did appear to be lower for the fuels (brown coal in particular) that contained a significant amount of fines. The fuel gas under oxygen-blown operation has been higher in hydrogen and carbon dioxide concentration since the higher steam injection rate promotes the water-gas shift reaction to produce more CO{sub 2} and H{sub 2} at the expense of the CO and water vapor. However, the high water and CO{sub 2} partial pressures have also significantly reduced the reaction of (Abstract truncated)

Michael L. Swanson

2005-08-30T23:59:59.000Z

348

Joint Institute for High Temperatures  

National Nuclear Security Administration (NNSA)

Joint Institute for High Temperatures of Russian Academy of Sciences Moscow Institute of Physics and Technology Extended title Extended title Excited state of warm dense matter or Exotic state of warm dense matter or Novel form of warm dense matter or New form of plasma Three sources of generation similarity: solid state density, two temperatures: electron temperature about tens eV, cold ions keep original crystallographic positions, but electron band structure and phonon dispersion are changed, transient but steady (quasi-stationary for a short time) state of non-equilibrium, uniform plasmas (no reference to non-ideality, both strongly and weakly coupled plasmas can be formed) spectral line spectra are emitted by ion cores embedded in plasma environment which influences the spectra strongly,

349

High-Speed Optical Spectroscopy  

E-Print Network (OSTI)

The large surveys and sensitive instruments of modern astronomy are turning ever more examples of variable objects, many of which are extending the parameter space to testing theories of stellar evolution and accretion. Future projects such as the Laser Interferometer Space Antenna (LISA) and the Large Synoptic Survey Telescope (LSST) will only add more challenging candidates to this list. Understanding such objects often requires fast spectroscopy, but the trend for ever larger detectors makes this difficult. In this contribution I outline the science made possible by high-speed spectroscopy, and consider how a combination of the well-known progress in computer technology combined with recent advances in CCD detectors may finally enable it to become a standard tool of astrophysics.

T. R. Marsh

2007-06-28T23:59:59.000Z

350

Steam Oxidation at High Pressure  

SciTech Connect

A first high pressure test was completed: 293 hr at 267 bar and 670{degrees}C; A parallel 1 bar test was done for comparison; Mass gains were higher for all alloys at 267 bar than at 1 bar; Longer term exposures, over a range of temperatures and pressures, are planned to provide information as to the commercial implications of pressure effects; The planned tests are at a higher combination of temperatures and pressures than in the existing literature. A comparison was made with longer-term literature data: The short term exposures are largely consistent with the longer-term corrosion literature; Ferritic steels--no consistent pressure effect; Austenitic steels--fine grain alloys less able to maintain protective chromia scale as pressure increases; Ni-base alloys--more mass gains above 105 bar than below. Not based on many data points.

Holcomb, Gordon R. [NETL; Carney, Casey [URS

2013-07-19T23:59:59.000Z

351

Enhanced High Resolution RBS System  

SciTech Connect

Improvements in full spectrum resolution with the second NEC high resolution RBS system are summarized. Results for 50 A ring TiN/HfO films on Si yielding energy resolution on the order of 1 keV are also presented. Detector enhancements include improved pulse processing electronics, upgraded shielding for the MCP/RAE detector, and reduced noise generated from pumping. Energy resolution measurements on spectra front edge coupled with calculations using 0.4mStr solid angle show that beam energy spread at 400 KeV from the Pelletron registered accelerator is less than 100 eV. To improve user throughput, magnet control has been added to the automatic data collection. Depth profiles derived from experimental data are discussed. For the thin films profiled, depth resolutions were on the Angstrom level with the non-linear energy/channel conversions ranging from 100 to 200 eV.

Pollock, Thomas J.; Hass, James A.; Klody, George M. [National Electrostatics Corp., Middleton, Wisconsin, U. S. A. 53562-0310 (United States)

2011-06-01T23:59:59.000Z

352

High voltage DC power supply  

DOE Patents (OSTI)

A high voltage DC power supply having a first series resistor at the output for limiting current in the event of a short-circuited output, a second series resistor for sensing the magnitude of output current, and a voltage divider circuit for providing a source of feedback voltage for use in voltage regulation is disclosed. The voltage divider circuit is coupled to the second series resistor so as to compensate the feedback voltage for a voltage drop across the first series resistor. The power supply also includes a pulse-width modulated control circuit, having dual clock signals, which is responsive to both the feedback voltage and a command voltage, and also includes voltage and current measuring circuits responsive to the feedback voltage and the voltage developed across the second series resistor respectively. 7 figs.

Droege, T.F.

1989-12-19T23:59:59.000Z

353

High voltage load resistor array  

DOE Patents (OSTI)

A high voltage resistor comprising an array of a plurality of parallel electrically connected resistor elements each containing a resistive solution, attached at each end thereof to an end plate, and about the circumference of each of the end plates, a corona reduction ring. Each of the resistor elements comprises an insulating tube having an electrode inserted into each end thereof and held in position by one or more hose clamps about the outer periphery of the insulating tube. According to a preferred embodiment, the electrode is fabricated from stainless steel and has a mushroom shape at one end, that inserted into the tube, and a flat end for engagement with the end plates that provides connection of the resistor array and with a load.

Lehmann, Monty Ray (Smithfield, VA)

2005-01-18T23:59:59.000Z

354

High voltage DC power supply  

DOE Patents (OSTI)

A high voltage DC power supply having a first series resistor at the output for limiting current in the event of a short-circuited output, a second series resistor for sensing the magnitude of output current, and a voltage divider circuit for providing a source of feedback voltage for use in voltage regulation is disclosed. The voltage divider circuit is coupled to the second series resistor so as to compensate the feedback voltage for a voltage drop across the first series resistor. The power supply also includes a pulse-width modulated control circuit, having dual clock signals, which is responsive to both the feedback voltage and a command voltage, and also includes voltage and current measuring circuits responsive to the feedback voltage and the voltage developed across the second series resistor respectively.

Droege, Thomas F. (Batavia, IL)

1989-01-01T23:59:59.000Z

355

High-temperature desulfurization of gasifier effluents with rare earth and rare earth/transition metal oxides  

SciTech Connect

We have improved the application of mixed rare-earth oxides (REOs) as hot gas desulfurization adsorbents by impregnating them on stable high surface area supports and by the inclusion of certain transition metal oxides. We report comparative desulfurization experiments at high temperature (900 K) using a synthetic biomass gasifier effluent containing 0.1 vol % H{sub 2}S, along with H{sub 2}, CO{sub 2}, and water. More complex REO sorbents outperform the simpler CeO{sub 2}/La{sub 2}O{sub 3} mixtures, in some cases significantly. Supporting REOs on Al{sub 2}O{sub 3} (?20 wt % REO) or ZrO{sub 2} actually increased the sulfur capacities found after several cycles on a total weight basis. Another major increase in sulfur capacity took place when MnO{sub x} or FeO{sub x} is incorporated. Apparently most of the Mn or Fe is dispersed on or near the surface of the mixed REOs because the capacities with REOs greatly exceeded those of Al{sub 2}O{sub 3}-supported MnO{sub x} or FeO{sub x} alone at these conditions. In contrast, incorporating Cu has little effect on sulfur adsorption capacities. Both the REO and transition metal/REO adsorbents could be regenerated completely using air for at least five repetitive cycles.

Dooley, Kerry M.; Kalakota, Vikram; Adusumilli, Sumana

2011-01-01T23:59:59.000Z

356

High speed sampler and demultiplexer  

DOE Patents (OSTI)

A high speed sampling demultiplexer based on a plurality of sampler banks, each bank comprising a sample transmission line for transmitting an input signal, a strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates at respective positions along the sample transmission line for sampling the input signal in response to the strobe signal. Strobe control circuitry is coupled to the plurality of banks, and supplies a sequence of bank strobe signals to the strobe transmission lines in each of the plurality of banks, and includes circuits for controlling the timing of the bank strobe signals among the banks of samplers. Input circuitry is included for supplying the input signal to be sampled to the plurality of sample transmission lines in the respective banks. The strobe control circuitry can repetitively strobe the plurality of banks of samplers such that the banks of samplers are cycled to create a long sample length. Second tier demultiplexing circuitry is coupled to each of the samplers in the plurality of banks. The second tier demultiplexing circuitry senses the sample taken by the corresponding sampler each time the bank in which the sampler is found is strobed. A plurality of such samples can be stored by the second tier demultiplexing circuitry for later processing. Repetitive sampling with the high speed transient sampler induces an effect known as "strobe kickout". The sample transmission lines include structures which reduce strobe kickout to acceptable levels, generally 60 dB below the signal, by absorbing the kickout pulses before the next sampling repetition.

McEwan, Thomas E. (Livermore, CA)

1995-01-01T23:59:59.000Z

357

High speed sampler and demultiplexer  

DOE Patents (OSTI)

A high speed sampling demultiplexer based on a plurality of sampler banks, each bank comprising a sample transmission line for transmitting an input signal, a strobe transmission line for transmitting a strobe signal, and a plurality of sampling gates at respective positions along the sample transmission line for sampling the input signal in response to the strobe signal. Strobe control circuitry is coupled to the plurality of banks, and supplies a sequence of bank strobe signals to the strobe transmission lines in each of the plurality of banks, and includes circuits for controlling the timing of the bank strobe signals among the banks of samplers. Input circuitry is included for supplying the input signal to be sampled to the plurality of sample transmission lines in the respective banks. The strobe control circuitry can repetitively strobe the plurality of banks of samplers such that the banks of samplers are cycled to create a long sample length. Second tier demultiplexing circuitry is coupled to each of the samplers in the plurality of banks. The second tier demultiplexing circuitry senses the sample taken by the corresponding sampler each time the bank in which the sampler is found is strobed. A plurality of such samples can be stored by the second tier demultiplexing circuitry for later processing. Repetitive sampling with the high speed transient sampler induces an effect known as ``strobe kickout``. The sample transmission lines include structures which reduce strobe kickout to acceptable levels, generally 60 dB below the signal, by absorbing the kickout pulses before the next sampling repetition. 16 figs.

McEwan, T.E.

1995-12-26T23:59:59.000Z

358

Nuclear Reactions at High Energy  

Science Journals Connector (OSTI)

In the quark model, nuclei (B?2) have exotic quantum numbers. Given a nuclear reaction in which certain quantum numbers are exchanged, what is the scattering amplitude at high energies, in the GeV region? Does it have Regge behavior? Is it dual? Are there multibaryon resonances? In this context we present a general survey of all high-energy nuclear reactions - mainly those involving light nuclei. For B=0 exchange reactions, like ?d??d and ?-h??0t (h?He3, t=H3), there is the impulse and rescattering (Glauber) model. For B=1 exchange we discuss the one-pion-exchange (OPE) model for pp?d?+, pd?dp, and ?d?pn, and the "knock-on" model for pd??+t, dd?tp, dh?hd, ?h?pd, and ???pt. In the case of B=2 exchange we examine the impulse and rescattering diagrams for ?d?d?, ?d?d?0, and ?d?d?, and use the OPE model to calculate cross sections for pd?t?, pt?tp, and ph?hp. Briefly considered are: (1) backward elastic scattering from heavy nuclei (pA?Ap) and (2) inclusive nuclear reactions such as N14+A?Li6+anything and pA?d¯+anything. We postulate that in general nuclear reactions have Regge behavior, but are not dual, because so far there are no exotic multibaryon resonances. Nuclear reactions appear to be completely dominated by anomalous singularities, whereas ordinary nonexotic hadron reactions appear to be dominated by normal singularities and poles.

George W. Barry

1973-03-01T23:59:59.000Z

359

Rotational viscometer for high-pressure, high-temperature fluids  

DOE Patents (OSTI)

The invention is a novel rotational viscometer which is well adapted for use with fluids at high temperatures and/or pressures. In one embodiment, the viscometer include a substantially non-magnetic tube having a closed end and having an open end in communication with a fluid whose viscosity is to be determined. An annular drive magnet is mounted for rotation about the tube. The tube encompasses and supports a rotatable shaft assembly which carries a rotor, or bob, for insertion in the fluid. Affixed to the shaft are (a) a second magnet which is magnetically coupled to the drive magnet and (b) a third magnet. In a typical operation, the drive magnet is rotated to turn the shaft assembly while the shaft rotor is immersed in the fluid. The viscous drag on the rotor causes the shaft assembly to lag the rotation of the drive magnet by an amount which is a function of the amount of viscous drag. A first magnetic pickup generates a waveform whose phase is a function of the angular position of the drive magnet. A second magnetic pickup generates a waveform whose phase is a function of the angular position of the third magnet. Means are provided to generate an output indicative of the phase difference between the two waveforms. The viscometer is comparatively simple, inexpensive, rugged, and does not require shaft seals.

Carr, K.R.

1983-06-06T23:59:59.000Z

360

GRB 110709A, 111117A, AND 120107A: FAINT HIGH-ENERGY GAMMA-RAY PHOTON EMISSION FROM FERMI-LAT OBSERVATIONS AND DEMOGRAPHIC IMPLICATIONS  

SciTech Connect

Launched on 2008 June 11, the Large Area Telescope (LAT) instrument on board the Fermi Gamma-ray Space Telescope has provided a rare opportunity to study high-energy photon emission from gamma-ray bursts (GRBs). Although the majority of such events (27) have been identified by the Fermi-LAT Collaboration, four were uncovered by using more sensitive statistical techniques. In this paper, we continue our earlier work by finding three more GRBs associated with high-energy photon emission, GRB 110709A, 111117A, and 120107A. To systematize our matched filter approach, a pipeline has been developed to identify these objects in nearly real time. GRB 120107A is the first product of this analysis procedure. Despite the reduced threshold for identification, the number of GRB events has not increased significantly. This relative dearth of events with low photon number prompted a study of the apparent photon number distribution. We find an extremely good fit to a simple power law with an exponent of -1.8 {+-} 0.3 for the differential distribution. As might be expected, there is a substantial correlation between the number of lower energy photons detected by the Gamma-ray Burst Monitor (GBM) and the number observed by LAT. Thus, high-energy photon emission is associated with some but not all of the brighter GBM events. Deeper studies of the properties of the small population of high-energy emitting bursts may eventually yield a better understanding of these entire phenomena.

Zheng Weikang; Akerlof, Carl W.; McKay, Timothy A. [Department of Physics, University of Michigan, 450 Church Street, Ann Arbor, MI 48109 (United States); Pandey, Shashi B. [Aryabhatta Research Institute of Observational Sciences, Manora Peak, Nainital 263129 (India); Zhang Binbin [Department of Astronomy and Astrophysics, Pennsylvania State University, University Park, PA 16802 (United States); Zhang Bing [Department of Physics and Astronomy, University of Nevada, Las Vegas, NV 89154 (United States); Sakamoto, Takanori, E-mail: zwk@umich.edu [Center for Research and Exploration in Space Science and Technology (CRESST), NASA Goddard Space Flight Center, Greenbelt, MD 20771 (United States)

2012-09-01T23:59:59.000Z

Note: This page contains sample records for the topic "high apparent hurdle" 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

Low Cost, High Efficiency, High Pressure Hydrogen Storage  

SciTech Connect

A technical and design evaluation was carried out to meet DOE hydrogen fuel targets for 2010. These targets consisted of a system gravimetric capacity of 2.0 kWh/kg, a system volumetric capacity of 1.5 kWh/L and a system cost of $4/kWh. In compressed hydrogen storage systems, the vast majority of the weight and volume is associated with the hydrogen storage tank. In order to meet gravimetric targets for compressed hydrogen tanks, 10,000 psi carbon resin composites were used to provide the high strength required as well as low weight. For the 10,000 psi tanks, carbon fiber is the largest portion of their cost. Quantum Technologies is a tier one hydrogen system supplier for automotive companies around the world. Over the course of the program Quantum focused on development of technology to allow the compressed hydrogen storage tank to meet DOE goals. At the start of the program in 2004 Quantum was supplying systems with a specific energy of 1.1-1.6 kWh/kg, a volumetric capacity of 1.3 kWh/L and a cost of $73/kWh. Based on the inequities between DOE targets and Quantum’s then current capabilities, focus was placed first on cost reduction and second on weight reduction. Both of these were to be accomplished without reduction of the fuel system’s performance or reliability. Three distinct areas were investigated; optimization of composite structures, development of “smart tanks” that could monitor health of tank thus allowing for lower design safety factor, and the development of “Cool Fuel” technology to allow higher density gas to be stored, thus allowing smaller/lower pressure tanks that would hold the required fuel supply. The second phase of the project deals with three additional distinct tasks focusing on composite structure optimization, liner optimization, and metal.

Mark Leavitt

2010-03-31T23:59:59.000Z

362

NOvel Refractory Materials for High Alkali, High Temperature Environments  

SciTech Connect

Refractory materials can be limited in their application by many factors including chemical reactions between the service environment and the refractory material, mechanical degradation of the refractory material by the service environment, temperature limitations on the use of a particular refractory material, and the inability to install or repair the refractory material in a cost effective manner or while the vessel was in service. The objective of this project was to address the need for new innovative refractory compositions by developing a family of novel MgO-Al2O3 spinel or other similar magnesia/alumina containing unshaped refractory composition (castables, gunnables, shotcretes, etc) utilizing new aggregate materials, bond systems, protective coatings, and phase formation techniques (in-situ phase formation, altered conversion temperatures, accelerated reactions, etc). This family of refractory compositions would then be tailored for use in high-temperature, highalkaline industrial environments like those found in the aluminum, chemical, forest products, glass, and steel industries. A research team was formed to carry out the proposed work led by Oak Ridge National Laboratory (ORNL) and was comprised of the academic institution Missouri University of Science and Technology (MS&T), and the industrial company MINTEQ International, Inc. (MINTEQ), along with representatives from the aluminum, chemical, glass, and forest products industries. The two goals of this project were to produce novel refractory compositions which will allow for improved energy efficiency and to develop new refractory application techniques which would improve the speed of installation. Also methods of hot installation were sought which would allow for hot repairs and on-line maintenance leading to reduced process downtimes and eliminating the need to cool and reheat process vessels.

Hemrick, J.G.; Griffin, R. (MINTEQ International, Inc.)

2011-08-30T23:59:59.000Z

363

HIGH-PERFORMANCE COATING MATERIALS  

SciTech Connect

Corrosion, erosion, oxidation, and fouling by scale deposits impose critical issues in selecting the metal components used at geothermal power plants operating at brine temperatures up to 300 C. Replacing these components is very costly and time consuming. Currently, components made of titanium alloy and stainless steel commonly are employed for dealing with these problems. However, another major consideration in using these metals is not only that they are considerably more expensive than carbon steel, but also the susceptibility of corrosion-preventing passive oxide layers that develop on their outermost surface sites to reactions with brine-induced scales, such as silicate, silica, and calcite. Such reactions lead to the formation of strong interfacial bonds between the scales and oxide layers, causing the accumulation of multiple layers of scales, and the impairment of the plant component's function and efficacy; furthermore, a substantial amount of time is entailed in removing them. This cleaning operation essential for reusing the components is one of the factors causing the increase in the plant's maintenance costs. If inexpensive carbon steel components could be coated and lined with cost-effective high-hydrothermal temperature stable, anti-corrosion, -oxidation, and -fouling materials, this would improve the power plant's economic factors by engendering a considerable reduction in capital investment, and a decrease in the costs of operations and maintenance through optimized maintenance schedules.

SUGAMA,T.

2007-01-01T23:59:59.000Z

364

High thermal expansion, sealing glass  

DOE Patents (OSTI)

A glass composition is described for hermetically sealing to high thermal expansion materials such as aluminum alloys, stainless steels, copper, and copper/beryllium alloys, which includes between about 10 and about 25 mole percent Na[sub 2]O, between about 10 and about 25 mole percent K[sub 2]O, between about 5 and about 15 mole percent Al[sub 2]O[sub 3], between about 35 and about 50 mole percent P[sub 2]O[sub 5] and between about 5 and about 15 mole percent of one of PbO, BaO, and mixtures thereof. The composition, which may also include between 0 and about 5 mole percent Fe[sub 2]O[sub 3] and between 0 and about 10 mole percent B[sub 2]O[sub 3], has a thermal expansion coefficient in a range of between about 160 and 210[times]10[sup [minus]7]/C and a dissolution rate in a range of between about 2[times]10[sup [minus]7] and 2[times]10[sup [minus]9]g/cm[sup 2]-min. This composition is suitable to hermetically seal to metallic electrical components which will be subjected to humid environments over an extended period of time.

Brow, R.K.; Kovacic, L.

1993-11-16T23:59:59.000Z

365

Multicolor, High Efficiency, Nanotextured LEDs  

SciTech Connect

We report on research results in this project which synergize advanced material science approaches with fundamental optical physics concepts pertaining to light-matter interaction, with the goal of solving seminal problems for the development of very high performance light emitting diodes (LEDs) in the blue and green for Solid State Lighting applications. Accomplishments in the duration of the contract period include (i) heteroepitaxy of nitrogen-polar LEDs on sapphire, (ii) heteroepitaxy of semipolar (11{bar 2}2) green LEDs on sapphire, (iii) synthesis of quantum-dot loaded nanoporous GaN that emits white light without phosphor conversion, (iv) demonstration of the highest quality semipolar (11{bar 2}2) GaN on sapphire using orientation-controlled epitaxy, (v) synthesis of nanoscale GaN and InGaN medium, and (vi) development of a novel liftoff process for manufacturing GaN thin-film vertical LEDs. The body of results is presented in this report shows how a solid foundation has been laid, with several noticeable accomplishments, for innovative research, consistent with the stated milestones.

Jung Han; Arto Nurmikko

2011-09-30T23:59:59.000Z

366

High Temperature Superconducting Underground Cable  

SciTech Connect

The purpose of this Project was to design, build, install and demonstrate the technical feasibility of an underground high temperature superconducting (HTS) power cable installed between two utility substations. In the first phase two HTS cables, 320 m and 30 m in length, were constructed using 1st generation BSCCO wire. The two 34.5 kV, 800 Arms, 48 MVA sections were connected together using a superconducting joint in an underground vault. In the second phase the 30 m BSCCO cable was replaced by one constructed with 2nd generation YBCO wire. 2nd generation wire is needed for commercialization because of inherent cost and performance benefits. Primary objectives of the Project were to build and operate an HTS cable system which demonstrates significant progress towards commercial progress and addresses real world utility concerns such as installation, maintenance, reliability and compatibility with the existing grid. Four key technical areas addressed were the HTS cable and terminations (where the cable connects to the grid), cryogenic refrigeration system, underground cable-to-cable joint (needed for replacement of cable sections) and cost-effective 2nd generation HTS wire. This was the world’s first installation and operation of an HTS cable underground, between two utility substations as well as the first to demonstrate a cable-to-cable joint, remote monitoring system and 2nd generation HTS.

Farrell, Roger, A.

2010-02-28T23:59:59.000Z

367

High risk of permafrost thaw  

SciTech Connect

In the Arctic, temperatures are rising fast, and permafrost is thawing. Carbon released to the atmosphere from permafrost soils could accelerate climate change, but the likely magnitude of this effect is still highly uncertain. A collective estimate made by a group of permafrost experts, including myself, is that carbon could be released more quickly than models currently suggest, and at levels that are cause for serious concern. While our models of carbon emission from permafrost thaw are lacking, experts intimately familiar with these landscapes and processes have accumulated knowledge about what they expect to happen, based on both quantitative data and qualitative understanding of these systems. We (the authors of this piece) attempted to quantify this expertise through a survey developed over several years, starting in 2009. Our survey asked experts what percentage of surface permafrost they thought was likely to thaw, how much carbon would be released, and how much of that would be methane, for three time periods and under four warming scenarios that are part of the new IPCC Fifth Assessment Report.

Schuur, E.A.G.; Abbott, B.; Koven, C.D,; Riley, W.J.; Subin, Z.M.; al, et

2011-11-01T23:59:59.000Z

368

High-Power Rf Load  

DOE Patents (OSTI)

A compact high-power RF load comprises a series of very low Q resonators, or chokes [16], in a circular waveguide [10]. The sequence of chokes absorb the RF power gradually in a short distance while keeping the bandwidth relatively wide. A polarizer [12] at the input end of the load is provided to convert incoming TE.sub.10 mode signals to circularly polarized TE.sub.11 mode signals. Because the load operates in the circularly polarized mode, the energy is uniformly and efficiently absorbed and the load is more compact than a rectangular load. Using these techniques, a load having a bandwidth of 500 MHz can be produced with an average power dissipation level of 1.5 kW at X-band, and a peak power dissipation of 100 MW. The load can be made from common lossy materials, such as stainless steel, and is less than 15 cm in length. These techniques can also produce loads for use as an alternative to ordinary waveguide loads in small and medium RF accelerators, in radar systems, and in other microwave applications. The design is easily scalable to other RF frequencies and adaptable to the use of other lossy materials.

Tantawi, Sami G. (San Mateo, CA); Vlieks, Arnold E. (Livermore, CA)

1998-09-01T23:59:59.000Z

369

APS high heat load monochromator  

SciTech Connect

This document contains the design specifications of the APS high heat load (HHL) monochromator and associated accessories as of February 1993. It should be noted that work is continuing on many parts of the monochromator including the mechanical design, crystal cooling designs, etc. Where appropriate, we have tried to add supporting documentation, references to published papers, and calculations from which we based our decisions. The underlying philosophy behind performance specifications of this monochromator was to fabricate a device that would be useful to as many APS users as possible, that is, the design should be as generic as possible. In other words, we believe that this design will be capable of operating on both bending magnet and ID beamlines (with the appropriate changes to the cooling and crystals) with both flat and inclined crystal geometries and with a variety of coolants. It was strongly felt that this monochromator should have good energy scanning capabilities over the classical energy range of about 4 to 20 keywith Si (111) crystals. For this reason, a design incorporating one rotation stage to drive both the first and second crystals was considered most promising. Separate rotary stages for the first and second crystals can sometimes provide more flexibility in their capacities to carry heavy loads (for heavily cooled first crystals or sagittal benders of second crystals), but their tuning capabilities were considered inferior to the single axis approach.

Lee, W.K.; Mills, D.

1993-02-01T23:59:59.000Z

370

High-pressure microhydraulic actuator  

DOE Patents (OSTI)

Electrokinetic ("EK") pumps convert electric to mechanical work when an electric field exerts a body force on ions in the Debye layer of a fluid in a packed bed, which then viscously drags the fluid. Porous silica and polymer monoliths (2.5-mm O.D., and 6-mm to 10-mm length) having a narrow pore size distribution have been developed that are capable of large pressure gradients (250-500 psi/mm) when large electric fields (1000-1500 V/cm) are applied. Flowrates up to 200 .mu.L/min and delivery pressures up to 1200 psi have been demonstrated. Forces up to 5 lb-force at 0.5 mm/s (12 mW) have been demonstrated with a battery-powered DC-DC converter. Hydraulic power of 17 mW (900 psi@ 180 uL/min) has been demonstrated with wall-powered high voltage supplies. The force and stroke delivered by an actuator utilizing an EK pump are shown to exceed the output of solenoids, stepper motors, and DC motors of similar size, despite the low thermodynamic efficiency.

Mosier, Bruce P. (San Francisco, CA) [San Francisco, CA; Crocker, Robert W. (Fremont, CA) [Fremont, CA; Patel, Kamlesh D. (Dublin, CA) [Dublin, CA

2008-06-10T23:59:59.000Z

371

High Performance Windows Volume Purchase: Information Resources  

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

Information Information Resources to someone by E-mail Share High Performance Windows Volume Purchase: Information Resources on Facebook Tweet about High Performance Windows Volume Purchase: Information Resources on Twitter Bookmark High Performance Windows Volume Purchase: Information Resources on Google Bookmark High Performance Windows Volume Purchase: Information Resources on Delicious Rank High Performance Windows Volume Purchase: Information Resources on Digg Find More places to share High Performance Windows Volume Purchase: Information Resources on AddThis.com... Home About For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers For Utilities Information Resources Information Resources Numerous publications will be available to help educate buyers, product

372

Inversion of Apparent Attenuation and Phase Velocity to Determine Scattering Parameters  

Science Journals Connector (OSTI)

......part by the Industrial Associates of the Basin Modelling Group at USC. These Associates are: Chevron, Unocal, Sun Oil, Marathon, Texaco, Phillips Petroleum, Saga Petroleum, Statoil, Conoco, and Broken Hill Proprietary. REFERENCES Aki......

I. Lerche

1988-10-01T23:59:59.000Z

373

E-Print Network 3.0 - apparent lattice parameter Sample Search...  

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

and Information Sciences 34 condmat9801215 Crossovers in the Two Dimensional Ising Spin Glass Summary: parameter of the staggered overlap against the temperature. The...

374

E-Print Network 3.0 - apparent vlba jet Sample Search Results  

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

Flare in September 2001 Summary: , Michael P. Rupen & Vivek Dhawan National Radio Astronomy Observatory VLBA images of Cygnus X-3 from... after a February 1997 flare show a...

375

E-Print Network 3.0 - apparent critical isotherm Sample Search...  

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and Information Sciences ; Materials Science 50 Equation of state of supercooled water simulated using the extended simple point charge intermolecular potential Summary:...

376

E-Print Network 3.0 - apparent metabolisable energy Sample Search...  

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Collection: Environmental Sciences and Ecology ; Biology and Medicine 14 Popko Wiersma, Martijn Salomons & Simon Verhulst Metabolic adjustments to increasing Summary:...

377

E-Print Network 3.0 - apparent trabecular bone Sample Search...  

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trabecular bone density in human... Trabecular ... Source: Gefen, Amit - Department of Biomedical Engineering, Tel Aviv University Collection: Engineering ; Biology and Medicine...

378

E-Print Network 3.0 - apparently healthy men Sample Search Results  

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

Fathers, Families, Poverty, and Policy Summary: 12 The Annals of the American Academy of Political and Social Science Young Disadvantaged Men... B. Mincy, Special Editors...

379

E-Print Network 3.0 - apparently unrelated families Sample Search...  

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

9 11 13 15 17 Family AverageTimeto Cannibalize(Days) INTRODUCTION... will prefer web- building substrates containing chemical cues from a full sibling over unrelated cues....

380

Accretion-powered pulsations in an apparently quiescent neutron star binary  

E-Print Network (OSTI)

Accreting millisecond X-ray pulsars are an important subset of low-mass X-ray binaries in which coherent X-ray pulsations can be observed during occasional, bright outbursts (X-ray luminosity $L_X\\sim 10^{36}$ erg s$^{-1}$). These pulsations show that matter is being channeled onto the neutron star's magnetic poles. However, such sources spend most of their time in a low-luminosity, quiescent state ($L_X\\lesssim 10^{34}$ erg s$^{-1}$), where the nature of the accretion flow onto the neutron star (if any) is not well understood. Here we report that the millisecond pulsar/low-mass X-ray binary transition object PSR J1023+0038 intermittently shows coherent X-ray pulsations at luminosities nearly 100 times fainter than observed in any other accreting millisecond X-ray pulsar. We conclude that in spite of its low luminosity PSR J1023+0038 experiences episodes of channeled accretion, a discovery that challenges existing models for accretion onto magnetized neutron stars.

Archibald, Anne M; Patruno, Alessandro; Hessels, Jason W T; Deller, Adam T; Bassa, Cees; Janssen, Gemma H; Kaspi, Vicky M; Lyne, Andrew G; Stappers, Ben W; Tendulkar, Shriharsh P; D'Angelo, Caroline R; Wijnands, Rudy

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "high apparent hurdle" 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

Menstrual cycle, pregnancy and oral contraceptive use alter attraction to apparent health in faces  

Science Journals Connector (OSTI)

...KY16 9SX UK 3 The Bute Medical School, University of...KY16 9SX, UK 3 The Bute Medical School, University of...matings, as there are costs (in terms of low investment...captured under diffuse flash lighting with neutral expression...contribute to production costs. 354 B. C. Jones and...

2005-01-01T23:59:59.000Z

382

E-Print Network 3.0 - apparent metal-insulator transition Sample...  

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

mathmatiques Collection: Mathematics 51 Superconductor-Correlated metal-Superconductor Josephson junctions Summary: -potential approximation which displays a metal-insulator...

383

E-Print Network 3.0 - apparent faster-than-light pulse Sample...  

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

disregarded in previous studies), defined here as those... Electric Field Pulse Trains Occurring Prior to the First Stroke in Negative Cloud-to-Ground Lightning... the...

384

E-Print Network 3.0 - apparent digestibility coefficients Sample...  

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

Yale University Collection: Biology and Medicine 16 www.manuremanagement.cornell.edu Biogas Casebook Summary: 1 www.manuremanagement.cornell.edu Biogas Casebook: NYS On-farm...

385

E-Print Network 3.0 - apparent nutrient digestibility Sample...  

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

Council (WTERT) Collection: Renewable Energy 7 www.manuremanagement.cornell.edu Biogas Casebook Summary: 1 www.manuremanagement.cornell.edu Biogas Casebook: NYS On-farm...

386

E-Print Network 3.0 - apparently normal phenotype Sample Search...  

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

We outline a flexible model that combines phenotypic variation with optimal... types of trade-offs, phenotype diversity and level of competition in determining the degree... in...

387

Palaeomagnetism of the Silurian Lipeón formation, NW Argentina, and the Gondwana apparent polar wander path  

Science Journals Connector (OSTI)

......The Andes of Chile and Argentina, inGeology of the Andes...Pacific Council for Energy and Mineral Resources...Revista Asoc. Geol. Argentina, 5, 4, 169-203...Pacific Council for Energy and Mineral Resources...Revista Asoc. Geol. Argentina. 5, 4, 169-203......

C. M. Conti; A. E. Rapalini; J. F. Vilas

1995-06-01T23:59:59.000Z

388

E-Print Network 3.0 - apparent molecular weight Sample Search...  

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

Behavior of Partially Miscible Blends of Linear and Branched Polyethylenes Summary: polyethylene (HDPE) of broad molecular weight distribution with a homogeneous ethylene-octene...

389

E-Print Network 3.0 - apparently solitary plasmacytoma Sample...  

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

the internal tide Karl R. Helfrich1 Summary: The disintegration of a first-mode internal tide into shorter solitary-like waves is considered. Because observations... to...

390

E-Print Network 3.0 - apparent life threatening Sample Search...  

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

of species threatened and an index... where species are threatened by pollution and agriculture. Wherever invasive species and water Source: Kark, Salit - Department of...

391

IEEE TRANSACTIONS ON IMAGE PROCESSING, 2013 1 Optimizing Apparent Display Resolution  

E-Print Network (OSTI)

are available today. With active-matrix organic light-emitting diode (AMOLED) technology even higher refresh

Magnor, Marcus

392

E-Print Network 3.0 - apparent ring galaxy Sample Search Results  

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

flattening of the galaxy 5 12; Fig. 1. SAURON maps... -type galaxies Jesus Falcon-Barroso a;1 , Marc Sarzi b , Roland Bacon c , ... Source: Bureau, Martin - Department of...

393

Trading zones : cooperating for water resource and ecosystem management when stakeholders have apparently irreconcilable differences .  

E-Print Network (OSTI)

??Disputes over the management of water resources in the United States often seem irreconcilable because stakeholders' differences in values, beliefs, and identities are so hard… (more)

Fuller, Boyd

2006-01-01T23:59:59.000Z

394

E-Print Network 3.0 - apparent specific volume Sample Search...  

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

of Z .sampling technique, specifically small- bottles and Zlarge-volume in situ pumps and large-volume... in samples collected using small- and large-volume methods: the...

395

Information and technology: A coexistence without limits, a beginning with no apparent ending  

SciTech Connect

A variety of issues must be addressed in development of software for information resources. One is accessibility and use of information. Another is that to properly design, abstract, index, and do quality control on a database requires the effort of well-trained and knowledgeable personnel as well as substantial financial resources. Transferring data to other locations has inherent difficulties, including those related to incompatibility. The main issue in developing health risk assessment databases is the needs of the user.

Reisman, D.J. [Environmental Protection Agency, Washington, DC (United States)

1990-12-31T23:59:59.000Z

396

A derived variable physical photon velocity explains the apparent accelerated universe without invoking dark energy  

E-Print Network (OSTI)

We have derived a group of new coordinate systems which covariantly transform from an open RW system constrained by the requirement that their spatial points move at a negative radial velocity when measured with the RW coordinates and whose clocks are attached to the transformed spatial coordinates. At their origin they all have the same time-variable photon velocity v(t), as determined by clocks and rulers which are physical when v(t) equals c(t), the physical photon velocity. A variable c(t) no longer keeps the Lorentz transform invariant. Instead, locally we have a generalized Lorentz transform and generalized Minkowski metric. By introducing a generalized time for which the differential is c(t)dt, we create a Minkowski metric in order to use Einstein's field equations to calculate c(t). Measurements of the fine structure in clouds of cosmic matter experimentally demonstrate that some physical "constant" do change with cosmic time. We use dependences on c(t) of various physical "constant" which keep a norm...

Fletcher, R C

2003-01-01T23:59:59.000Z

397

E-Print Network 3.0 - apparent cpt violation Sample Search Results  

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

(CPT) Summary: Revised 03042009 CURRICULAR PRACTICAL TRAINING (CPT) If you are an F1 student and would... Training (CPT) authorization, which is issued by an international...

398

E-Print Network 3.0 - apparent catalytic site Sample Search Results  

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

Yeshiva University Collection: Materials Science 11 Chemo-Mechanical Coupling in F1-ATPase Revealed by Catalytic Site Occupancy during Catalysis Summary: Chemo-Mechanical...

399

E-Print Network 3.0 - apparent negative cooperativity Sample...  

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

Reciprocity, and the Collective Action Heuristic Mark Lubell Department of Political... and reciprocity of 7 simulated players in 8-person, iterated social dilemmas. We...

400

E-Print Network 3.0 - apparent genetic homogeneity Sample Search...  

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

Johnson. 12;REVIEW AND SYNTHESIS Ecological consequences of genetic diversity A. Randall Hughes,1 * Brian... on a key component of biodiversity, genetic diversity, has...

Note: This page contains sample records for the topic "high apparent hurdle" 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

E-Print Network 3.0 - apparently immunocompetent host Sample...  

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

selection. In natural systems, however, the out- come of a host-parasite ... Source: Poulin, Robert - Department of Zoology, University of Otago; Roche, Benjamin - School of...

402

The quantitative influence of salinity on the apparent resistivity on a physical model upon salination  

SciTech Connect

The excessive exploitation of groundwater aquifers leads to water table drawdown, and subsequently to the contamination of these aquifers by the intrusion of sea water or other hazardous sources. This worldwide environmental problem is becoming increasingly critical in coastal agricultural areas, where the fine grained materials develop a thick fringe zone. By evapo-transpiration the moisture of this zone pumps up the salt in the dry season, which cannot be efficiently washed away in the wet season. The current study investigates the possibility of an early detection of salination, through systematic observation of electrical resistivity in selected positions with fixed electrode arrays. A direct current electrical profiling system of Wenner configuration was tested in the laboratory using a physical model. The model was constructed of wood and plastic tilled with saturated sand and having a constant water flow of 1.6 l/mn. The model size is 148 by 85 cm for lateral dimensions and 25 cm of sand thickness, with a total porosity of 360%. Upon salination the salt was increasingly added to the system to reach a concentration of 32 g/l. Upon desalination salt water was replaced by fresh water to dilute the water in the system to a concentration of 0.25 g/l. The results show that the relationship between salinity and electrical resistivity is inversely proportional and characterized by linear logarithmic function; the velocity of water flow calculated by abrupt resistivity changes is lower than the hydraulic velocity; the resistivity values for low salinity upon desalination are much different (smaller) than those upon salination of equivalent salt concentrations: the relative change of resistivity upon salination and desalination involves almost equally all features of the tank that have distinctive resistivity values.

Khair, K. [American Univ. of Beirut (Lebanon); Skokan, C. [Colorado School of Mines, Golden, CO (United States)

1996-11-01T23:59:59.000Z

403

E-Print Network 3.0 - apparent polar wander Sample Search Results  

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

instability... to the standard set of governing equations for polar wander ... Source: Peltier, W. Richard - Centre for Global Change Science & Department of Physics, University of...

404

Apparent magnetic polarity reversals due to remagnetization resulting from late diagenetic growth of greigite from siderite  

Science Journals Connector (OSTI)

......surprisingly low average sedimentation rate...samples collected at an average spacing of 13 cm...afterwards at our home laboratories. Low-field...were obtained from energy-dispersive X-ray...progression will result in consumption of all available...support of their home institutions and......

Leonardo Sagnotti; Andrew P. Roberts; Richard Weaver; Kenneth L. Verosub; Fabio Florindo; Christopher R. Pike; Trevor Clayton; Gary S. Wilson

2005-01-01T23:59:59.000Z

405

A SIMPLE METHOD FOR CALCULATING APPARENT RESISTIVITY FROM ELECTROMAGNETIC SOUNDING DATA  

E-Print Network (OSTI)

and Operations 6 Geothermal Energy Division of the No. u.s.and Operations, Geothermal Energy Division of the u.s.

Wilt, Michael

2014-01-01T23:59:59.000Z

406

E-Print Network 3.0 - apparent aqueous deficient Sample Search...  

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

Filters Summary: The Flow of Aqueous Humor Through Micro-Porous Filters Mark Johnson,*t C. Ross Ethier,* Roger D... as bovine and primate aqueous humor was passed through...

407

Kaluza–Klein unified field theory and apparent four?dimensional space?time  

Science Journals Connector (OSTI)

In the 1920s Kaluza and Klein achieved an elegant unified theory of gravitation and electromagnetism by assuming that space?time is really 5?dimensional. Their approach has since been extended to even higher dimensions in an effort to provide a geometrical unification of all the fundamental interactions. Any such scheme must answer the obvious objection emphasized by Einstein: Why then does space?time a p p e a r to be only 4?dimensional? This paper provides a semihistorical introduction to Kaluza–Klein unification on a level accessible to those with a basic knowledge of general relativity and particle physics and examines the progress made in answering Einstein’s and related objections.

Christopher F. Chyba

1985-01-01T23:59:59.000Z

408

Regulation of Telomerase in Arabidopsis by BT2, an Apparent Target of TELOMERASE ACTIVATOR1  

Science Journals Connector (OSTI)

...described by Park et al. (2003) and grown in a greenhouse with natural lighting. Mature seeds of rice (cv Taipei 309) were...transferred to soil and grown to maturity in a greenhouse. Telomerase Assays Plants were analyzed for telomerase...

Shuxin Ren; Kranthi K. Mandadi; Amy L. Boedeker; Keerti S. Rathore; Thomas D. McKnight

2007-01-12T23:59:59.000Z

409

E-Print Network 3.0 - apparent paradoxical vault Sample Search...  

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

Summary: , vaults, manholes, boilers, tunnels, sewer and sump pits, large HVAC equipment, the Physics Department... -required confined spaces. Underground Electrical...

410

E-Print Network 3.0 - apparent layered structure Sample Search...  

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

Cylinder Liner... of Plastic Cylinder Liner 1. HPDE Liner Layer Cavities 12;Quality of Plastic Cylinder Liner 2. Crazing Source: DOE Office of Energy Efficiency and Renewable...

411

E-Print Network 3.0 - apparent metabolizable energy Sample Search...  

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

Summary: of the metabolizable nitrogen content of a diet relative to its metabolizable energy content. For the calculation... in terms of metabolizable nitrogen vs. energy...

412

Clinical pharmacokinetics and safety of zonisamide in apparently normal dogs following single and multiple dosing  

E-Print Network (OSTI)

in clinical pathology tests, all were within normal limits at study end except for T4. In conclusion, ZNS dosed at 10 mg/kg twice daily for dogs would maintain therapeutic levels (10 to 70?g/ml) recommended in human epileptic patients. Therapeutic monitoring...

Perkins, Jeremy Dane

2004-11-15T23:59:59.000Z

413

The influence of surface conductivity on the apparent zeta potential of TiO2 nanoparticles  

E-Print Network (OSTI)

Titanium dioxide is widely used as TiO2 nanoparticles and has a large variety of potential applications in of these properties, the surface ionization of titanium dioxide nanoparticles in contact with an electrolytic solution is a physico-chemical parameter of particular importance to describe ion adsorption and electrostatic

Paris-Sud XI, Université de

414

Differences in relative fitness among alternative mating tactics might be more apparent than real  

E-Print Network (OSTI)

each framework's predictions into question, but reveal a common truth. Debate might be resolved of the striped mouse can follow alternative reproductive tactics, the fitness consequences of which might differ fuel for this debate. They describe the fitness consequences of three behaviourally flexible

Shuster, Stephen M.

415

Triaxial orbit based galaxy models with an application to the (apparent) decoupled core galaxy NGC 4365  

Science Journals Connector (OSTI)

......central black hole, using Schwarzschild's orbital superposition...distribution (e.g. Williams Schwarzschild 1979), the presence of...present application (cf. Schwarzschild 1979). As can be seen from...be the same for all eight mirror points. Short-axis tube......

R. C. E. Van Den Bosch; G. Van De Ven; E. K. Verolme; M. Cappellari; P. T. De Zeeuw

2008-04-01T23:59:59.000Z

416

E-Print Network 3.0 - apparently soil antibiotics-dependant Sample...  

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

. 213 Response of soil CO2 efflux to water manipulation in a tallgrass prairie ecosystem ... Source: Chinese Academy of Sciences, Institute of Botany, Research Center of...

417

in the co-expressed class, whereas the apparent enrichment of conservation of  

E-Print Network (OSTI)

. (2001)An abundance of X-linked genes expressed in spermatogonia. Nat. Genet. 27, 422­426 2 Saifi, G

Gent, Universiteit

418

Trading zones : cooperating for water resource and ecosystem management when stakeholders have apparently irreconcilable differences  

E-Print Network (OSTI)

Disputes over the management of water resources in the United States often seem irreconcilable because stakeholders' differences in values, beliefs, and identities are so hard to resolve. Yet, while many efforts to resolve ...

Fuller, Boyd

2006-01-01T23:59:59.000Z

419

Apparent lattice expansion in ordered nanoporous silica during capillary condensation of fluids  

Science Journals Connector (OSTI)

A Bragg peak shift suggests a pore lattice expansion in ordered nanoporous silica at the onset of capillary condensation of fluids. In depth analysis by a numerical and an analytical approach leads to the conclusion that this shift is due not to a mechanical deformation of the pore lattice but to a subtle interplay between the form factor and the structure factor from crystallites of finite size.

Prass, J.

2012-07-04T23:59:59.000Z

420

E-Print Network 3.0 - apparent time variation Sample Search Results  

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

Systems Bruce R. Julian, U. S. Geological Survey... seismic-wave arrival time data sets for different epochs independently and assumed that any differences Source:...

Note: This page contains sample records for the topic "high apparent hurdle" 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

Large Apparent Electric Size of Solid-State Nanopores Due to Spatially Extended Surface Conduction  

Science Journals Connector (OSTI)

The descriptions for entrance effects are based on the idea that the pore can be considered as several resistances in series(21, 22) with the resistance inside the pore Rp supplemented by the access resistances Rout on each side of the pore: R = Rp + 2Rout, so that the overall conductance verifies G = (Gp–1 + 2Gout–1)?1. ... To this end, we solved the Poisson–Nernst–Planck equations for the electric potential V and the K+/Cl– ion concentration c± using finite-element method (COMSOL). ... The corresponding equations coupling the electric potential V to the ion concentrations c± write(5)where ? is the water permittivity, e the elementary charge, and N± are the K+/Cl– fluxes:(6)with ? the ion mobility (assumed to be equal for K+ and Cl–). ...

Choongyeop Lee; Laurent Joly; Alessandro Siria; Anne-Laure Biance; Rémy Fulcrand; Lydéric Bocquet

2012-07-02T23:59:59.000Z

422

E-Print Network 3.0 - apparently healthy subjects Sample Search...  

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

with panic dis- order relative to healthy comparison subjects. Similarly, mean 5HT1AR binding potential... ) and a matched group of 11 never traumatized, healthy...

423

Apparent activation energy of fused silica optical fibers in static fatigue in aqueous environments  

E-Print Network (OSTI)

to occur when ambient moisture reacts with the fiber surface causing subcritical crack growth.1Ã?3 Fatigue of silica optical fiber is therefore controlled by the crack growth rate, c : , which depends for the crack growth, which was originally proposed by Charles and Hillig, based on simple chemical kinetics

Matthewson, M. John

424

Apparent Correction to the Speed of Light in a Gravitational Potential  

E-Print Network (OSTI)

The effects of physical interactions are usually incorporated into the quantum theory by including the corresponding terms in the Hamiltonian. Here we consider the effects of including the gravitational potential energy of massive particles in the Hamiltonian of quantum electrodynamics. This results in a predicted correction to the speed of light that is proportional to the fine structure constant. The correction to the speed of light obtained in this way depends on the gravitational potential and not the gravitational field, which is not gauge invariant and presumably nonphysical. Nevertheless, the predicted results are in reasonable agreement with experimental observations from Supernova 1987a.

J. D. Franson

2011-11-28T23:59:59.000Z

425

Optimizing High Level Waste Disposal  

SciTech Connect

If society is ever to reap the potential benefits of nuclear energy, technologists must close the fuel-cycle completely. A closed cycle equates to a continued supply of fuel and safe reactors, but also reliable and comprehensive closure of waste issues. High level waste (HLW) disposal in borosilicate glass (BSG) is based on 1970s era evaluations. This host matrix is very adaptable to sequestering a wide variety of radionuclides found in raffinates from spent fuel reprocessing. However, it is now known that the current system is far from optimal for disposal of the diverse HLW streams, and proven alternatives are available to reduce costs by billions of dollars. The basis for HLW disposal should be reassessed to consider extensive waste form and process technology research and development efforts, which have been conducted by the United States Department of Energy (USDOE), international agencies and the private sector. Matching the waste form to the waste chemistry and using currently available technology could increase the waste content in waste forms to 50% or more and double processing rates. Optimization of the HLW disposal system would accelerate HLW disposition and increase repository capacity. This does not necessarily require developing new waste forms, the emphasis should be on qualifying existing matrices to demonstrate protection equal to or better than the baseline glass performance. Also, this proposed effort does not necessarily require developing new technology concepts. The emphasis is on demonstrating existing technology that is clearly better (reliability, productivity, cost) than current technology, and justifying its use in future facilities or retrofitted facilities. Higher waste processing and disposal efficiency can be realized by performing the engineering analyses and trade-studies necessary to select the most efficient methods for processing the full spectrum of wastes across the nuclear complex. This paper will describe technologies being evaluated at Idaho National Laboratory and the facilities we’ve designed to evaluate options and support optimization.

Dirk Gombert

2005-09-01T23:59:59.000Z

426

High Level Waste System Plan Revision 9  

SciTech Connect

Revision 9 of the High Level Waste System Plan documents the current operating strategy of the HLW System at SRS to receive, store, treat, and dispose of high-level waste.

Davis, N.R.; Wells, M.N.; Choi, A.S.; Paul, P.; Wise, F.E.

1998-04-01T23:59:59.000Z

427

Anomalous Interactions of High Energy Muons  

Science Journals Connector (OSTI)

......research-article Articles Anomalous Interactions of High Energy Muons Takashi Kitamura Reiji Sugano Department of Physics...on penetrating showers with large transferred energies producted by high energy muons are accepted, the muon would have anomalous......

Takashi Kitamura; Reiji Sugano

1966-11-01T23:59:59.000Z

428

High-Pressure Tube Trailers and Tanks  

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

Presentation on High-Pressure Tube Trailers and Tanks for the DOE Hydrogen Delivery High-Pressure Tanks and Analysis Project Review Meeting held February 8-9, 2005 at Argonne National Laboratory

429

Development of High Energy Cathode Materials  

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

deposits). Al-coated cell can is suitable for high-voltage cathodes. Polyethylene-based separators (such as Celgard K1640) are stable at high V. Carbon Additives...

430

Nuclear Interactions in Super High Energy Region  

Science Journals Connector (OSTI)

......research-article Articles Nuclear Interactions in Super High Energy Region Jose F. Bellandi a...Tokyo 188 We formulate the energy spectrum of produced particles...Atmospheric diffusion of high energy cosmic rays is calculated analytically......

Jose F. Bellandi; Sergio Q. Brunetto; Jose A. Chinellato; Carola Dobrigkeit; Akinori Ohsawa; Kotaro Sawayanagi; Edison H. Shibuya

1990-01-01T23:59:59.000Z

431

Identifying chromatin interactions at high spatial resolution  

E-Print Network (OSTI)

This thesis presents two computational approaches for identifying chromatin interactions at high spatial resolution from ChIA-PET data. We introduce SPROUT which is a hierarchical probabilistic model that discovers high ...

Reeder, Christopher Campbell

2014-01-01T23:59:59.000Z

432

Microfluidics for High School Chemistry Students  

Science Journals Connector (OSTI)

Microfluidics for High School Chemistry Students ... We present a laboratory experiment that introduces high school chemistry students to microfluidics while teaching fundamental properties of acid–base chemistry. ... Electrolysis of Water in the Secondary School Science Laboratory with Inexpensive Microfluidics ...

Melissa Hemling; John A. Crooks; Piercen M. Oliver; Katie Brenner; Jennifer Gilbertson; George C. Lisensky; Douglas B. Weibel

2013-12-09T23:59:59.000Z

433

High energy neutron Computed Tomography developed  

E-Print Network (OSTI)

be observed behind high-density materials, such as depleted uranium or tungsten. Comparison of the high (bottom half) and foam (center teeth) phantom could be viewed through 76 mm of depleted uranium. Some ~ 3

434

High Energy Density Ultracapacitors | Department of Energy  

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

Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. es038smith2010o.pdf More Documents & Publications High Energy Density Ultracapacitors High...

435

High Energy Density Ultracapacitors | Department of Energy  

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

Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. esp22smith.pdf More Documents & Publications High Energy Density Ultracapacitors High Energy...

436

Department of Physics High Energy Physics Group  

E-Print Network (OSTI)

Department of Physics High Energy Physics Group Electrical Engineer (Job ref: 0004) The High Energy and experience. A job description and an application form can be obtained from http

437

High-temperature thermocouples and related methods  

DOE Patents (OSTI)

A high-temperature thermocouple and methods for fabricating a thermocouple capable of long-term operation in high-temperature, hostile environments without significant signal degradation or shortened thermocouple lifetime due to heat induced brittleness.

Rempe, Joy L. (Idaho Falls, ID); Knudson, Darrell L. (Firth, ID); Condie, Keith G. (Idaho Falls, ID); Wilkins, S. Curt (Idaho Falls, ID)

2011-01-18T23:59:59.000Z

438

Highly durable graphene nanoplatelets supported Pt nanocatalysts...  

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

durable graphene nanoplatelets supported Pt nanocatalysts for oxygen reduction . Highly durable graphene nanoplatelets supported Pt nanocatalysts for oxygen reduction . Abstract:...

439

Building America Webinar: High Performance Space Conditioning...  

Energy Savers (EERE)

Strategies for Affordable Housing Building America Webinar: High Performance Space Conditioning Systems, Part II - Air Distribution Retrofit Strategies for Affordable...

440

Reciprocity theorem in high-temperature superconductors  

E-Print Network (OSTI)

This article is devoted to the problem of the validity of the reciprocity theorem in high-temperature

Ivan Jane?ek

2002-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "high apparent hurdle" 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

Scaling in high-temperature superconductors by  

E-Print Network (OSTI)

A Hartree approximation is used to study the interplay of two kinds of scaling which arise in high-temperature

Ian D Lawrie

1994-01-01T23:59:59.000Z

442

Agenda: High Temperature Membrane Working Group Meeting  

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

Agenda for the High Temperature Membrane Working Group (HTMWG) meeting on May 18, 2009, in Arlington, Virginia

443

Highly Automated Dipole EStimation , A. Pascarella2  

E-Print Network (OSTI)

filter, HADES (Highly Automatic Dipole EStimation). HADES is an open-source, freely downloadable, Matlab-based

Piana, Michele

444

NETL- High-Pressure Combustion Research Facility  

SciTech Connect

NETL's High-Pressure Combustion Facility is a unique resource within the National Laboratories system. It provides the test capabilities needed to evaluate new combustion concepts for high-pressure, high-temperature hydrogen and natural gas turbines. These concepts will be critical for the next generation of ultra clean, ultra efficient power systems.

None

2013-07-08T23:59:59.000Z

445

Tutorial: High Performance Computing Igal G. Rasin  

E-Print Network (OSTI)

Tutorial: High Performance Computing Igal G. Rasin Department of Chemical Engineering Israel Computing 27 Nisan 5769 (21.04.2009) 1 / 18 #12;Motivation What is High Performance Computing? What for serial Computing? Igal G. Rasin (Technion) Tutorial: High Performance Computing 27 Nisan 5769 (21

Adler, Joan

446

HIGH PERFORMANCE COMPUTING TODAY Jack Dongarra  

E-Print Network (OSTI)

1 HIGH PERFORMANCE COMPUTING TODAY Jack Dongarra Computer Science Department, University detailed and well-founded analysis of the state of high performance computing. This paper summarizes some of systems available for performing grid based computing. Keywords High performance computing, Parallel

Dongarra, Jack

447

College of Engineering High Performance Computing Cluster  

E-Print Network (OSTI)

College of Engineering High Performance Computing Cluster Policy and Procedures COE-HPC-01 and registered as requiring high performance computing; the course identification/registrations process the College High Performance Computing system will need register for system access by visiting http

Demirel, Melik C.

448

Electrical Transport Experiments at High Pressure  

SciTech Connect

High-pressure electrical measurements have a long history of use in the study of materials under ultra-high pressures. In recent years, electrical transport experiments have played a key role in the study of many interesting high pressure phenomena including pressure-induced superconductivity, insulator-to-metal transitions, and quantum critical behavior. High-pressure electrical transport experiments also play an important function in geophysics and the study of the Earth's interior. Besides electrical conductivity measurements, electrical transport experiments also encompass techniques for the study of the optoelectronic and thermoelectric properties of materials under high pressures. In addition, electrical transport techniques, i.e., the ability to extend electrically conductive wires from outside instrumentation into the high pressure sample chamber have been utilized to perform other types of experiments as well, such as high-pressure magnetic susceptibility and de Haas-van Alphen Fermi surface experiments. Finally, electrical transport techniques have also been utilized for delivering significant amounts of electrical power to high pressure samples, for the purpose of performing high-pressure and -temperature experiments. Thus, not only do high-pressure electrical transport experiments provide much interesting and valuable data on the physical properties of materials extreme compression, but the underlying high-pressure electrical transport techniques can be used in a number of ways to develop additional diagnostic techniques and to advance high pressure capabilities.

Weir, S

2009-02-11T23:59:59.000Z

449

High-Sulfur Coal for Generating Electricity  

Science Journals Connector (OSTI)

High-Sulfur...FLUIDIZED-BED COMBUSTORS, COMBUSTION...MAY FLUE GAS DES S E...1971 ). High-sulfur...was brief. Natural gas became...overdependent on natural gas and oil to...elevated pressure with a downward...coals of high ash-fusion...

James T. Dunham; Carl Rampacek; T. A. Henrie

1974-04-19T23:59:59.000Z

450

High Temperature Solar Splitting of Methane  

E-Print Network (OSTI)

-term commercialization opportunities #12;Why Use Solar Energy?Why Use Solar Energy? · High concentrations possible (>1000High Temperature Solar Splitting of Methane to Hydrogen and Carbon High Temperature Solar Splitting and worldwide) ­ Sufficient to power the world (if we choose to) · Advantages tradeoff against collection area

451

NETL- High-Pressure Combustion Research Facility  

ScienceCinema (OSTI)

NETL's High-Pressure Combustion Facility is a unique resource within the National Laboratories system. It provides the test capabilities needed to evaluate new combustion concepts for high-pressure, high-temperature hydrogen and natural gas turbines. These concepts will be critical for the next generation of ultra clean, ultra efficient power systems.

None

2014-06-26T23:59:59.000Z

452

QED3 Theory of High Temperature Superconductors  

E-Print Network (OSTI)

QED3 Theory of High Temperature Superconductors Zlatko Tesanovi´c The Johns Hopkins University is The Problem in high Tc superconductors? · Superconducting state appears dx2-y2 "BCS-like". Low energy: · Today, everything seems to be a high temperature superconduc- tor (cuprates, C60's, MgB2

Tesanovic, Zlatko

453

Radboud University Nijmegen Theoretical High Energy Physics  

E-Print Network (OSTI)

Radboud University Nijmegen Theoretical High Energy Physics Bachelor thesis The High Energy;CONTENTS CONTENTS Contents 1 Introduction and Research question 2 2 Theoretical Background 3 2.1 Gauge . . . . . . . . . . . . . . . . . . . . . . . . 4 2.3 High Energy Behaviour . . . . . . . . . . . . . . . . . . . . . . . 6 2.3.1 Renormalization

van Suijlekom, Walter

454

The Extended Finite Element Method for High Gradient Solutions  

E-Print Network (OSTI)

Outline Enrichment functions for high gradient solutions Motivation High gradient inside the domain (Shocks) High gradient at the boundary (boundary layers) Optimal set of enrichment functions Numerical for high gradient solutions Outline Enrichment functions for high gradient solutions Motivation High

455

Methods and technologies for high-throughput and high-content small animal screening  

E-Print Network (OSTI)

High-throughput and high-content screening (HTS and HCS) of whole animals requires their immobilization for high-resolution imaging and manipulation. Here we present methods to enable HTS and HCS of the nematode Caenorhabditis ...

Rohde, Christopher, 1979-

2012-01-01T23:59:59.000Z

456

Energy Performance and Comfort Level in High Rise and Highly Glazed Office Buildings  

E-Print Network (OSTI)

Thermal and visual comfort in buildings play a significant role on occupants' performance but on the other hand achieving energy savings and high comfort levels can be a quite difficult task especially in high rise buildings with highly glazed...

Bayraktar, M.; Perino, M.; Yilmaz, A. Z.

2010-01-01T23:59:59.000Z

457

Develop high energy high power Li-ion battery cathode materials : a first principles computational study  

E-Print Network (OSTI)

as cathode materials for Li-ion battery. Physica B-CondensedHigh Energy High Power Li-ion Battery Cathode Materials AHigh Energy High Power Li-ion Battery Cathode Materials A

Xu, Bo; Xu, Bo

2012-01-01T23:59:59.000Z

458

High Temperature, High Pressure Devices for Zonal Isolation in Geothermal Wells  

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

DOE Geothermal Peer Review 2010 - Presentation. Project objectives: Design, demonstrate, and qualify high-temperature high pressure zonal isolation devices compatible with the high temperature downhole Enhanced Geothermal Systems (EGS) environment.

459

Precision Crystal Calorimeters in High Energy Physics  

ScienceCinema (OSTI)

Precision crystal calorimeters traditionally play an important role in high energy physics experiments. In the last two decades, it faces a challenge to maintain its precision in a hostile radiation environment. This paper reviews the performance of crystal calorimeters constructed for high energy physics experiments and the progress achieved in understanding crystal?s radiation damage as well as in developing high quality scintillating crystals for particle physics. Potential applications of new generation scintillating crystals of high density and high light yield, such as LSO and LYSO, in particle physics experiments is also discussed.

Ren-Yuan Zhu

2010-01-08T23:59:59.000Z

460

Halide and Oxy-Halide Eutectic Systems for High Performance High...  

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

High Performance High Temperature Heat Transfer Fluids Award Number: DE-FOA-0005942 Report Date: 15 January 2013 PI: Peiwen (Perry) Li * Numerical simulation and combined DSCTGA...

Note: This page contains sample records for the topic "high apparent hurdle" 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

Modeling and Analysis of Natural Gas and Gasoline In A High Compression Ratio High Efficiency ICRE  

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

performance of a high compression ratio (32:1 to 74:1) high efficiency (50 to 60% BTE) ICRE operating on natural gas and gasoline

462

Natural Gas Study Guide - High School | Department of Energy  

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

High School Natural Gas Study Guide - High School Natural Gas Study Guide - High School Natural Gas Study Guide - High School More Documents & Publications Natural Gas Study Guide...

463

High Performance Windows Volume Purchase: Contacts  

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

Contacts to Contacts to someone by E-mail Share High Performance Windows Volume Purchase: Contacts on Facebook Tweet about High Performance Windows Volume Purchase: Contacts on Twitter Bookmark High Performance Windows Volume Purchase: Contacts on Google Bookmark High Performance Windows Volume Purchase: Contacts on Delicious Rank High Performance Windows Volume Purchase: Contacts on Digg Find More places to share High Performance Windows Volume Purchase: Contacts on AddThis.com... Home About For Builders For Residential Buyers For Light Commercial Buyers For Manufacturers For Utilities Information Resources Contacts Web site and High Performance Windows Volume Purchase Program contacts are provided below. Website Contact Send us your comments, report problems, and/or ask questions about

464

Ultra High Temperature | Open Energy Information  

Open Energy Info (EERE)

Ultra High Temperature Ultra High Temperature Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Print PDF Sanyal Temperature Classification: Ultra High Temperature Dictionary.png Ultra High Temperature: 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 Reservoir fluid greater than 300°C is considered by Sanyal to be "ultra high temperature". "Such reservoirs are characterized by rapid development of steam saturation in the reservoir and steam fraction in the mobile fluid phase upon

465

High Energy Efficiency Air Conditioning  

SciTech Connect

This project determined the performance of a new high efficiency refrigerant, Ikon B, in a residential air conditioner designed to use R-22. The refrigerant R-22, used in residential and small commercial air conditioners, is being phased out of production in developed countries beginning this year because of concerns regarding its ozone depletion potential. Although a replacement refrigerant, R-410A, is available, it operates at much higher pressure than R-22 and requires new equipment. R-22 air conditioners will continue to be in use for many years to come. Air conditioning is a large part of expensive summer peak power use in many parts of the U.S. Previous testing and computer simulations of Ikon B indicated that it would have 20 - 25% higher coefficient of performance (COP, the amount of cooling obtained per energy used) than R-22 in an air-cooled air conditioner. In this project, a typical new R-22 residential air conditioner was obtained, installed in a large environmental chamber, instrumented, and run both with its original charge of R-22 and then with Ikon B. In the environmental chamber, controlled temperature and humidity could be maintained to obtain repeatable and comparable energy use results. Tests with Ikon B included runs with and without a power controller, and an extended run for several months with subsequent analyses to check compatibility of Ikon B with the air conditioner materials and lubricant. Baseline energy use of the air conditioner with its original R-22 charge was measured at 90 deg F and 100 deg F. After changeover to Ikon B and a larger expansion orifice, energy use was measured at 90 deg F and 100 deg F. Ikon B proved to have about 19% higher COP at 90 deg F and about 26% higher COP at 100 deg F versus R-22. Ikon B had about 20% lower cooling capacity at 90 deg F and about 17% lower cooling capacity at 100 deg F versus R-22 in this system. All results over multiple runs were within 1% relative standard deviation (RSD). All of these values agree well with previous results and computer simulations of Ikon B performance versus R-22. The lower cooling capacity of Ikon B is not a concern unless a particular air conditioner is near its maximum cooling capacity in application. Typically, oversized A/C systems are installed by contractors to cover contingencies. In the extended run with Ikon B, which lasted about 4.5 months at 100 deg F ambient temperature and 68% compressor on time, the air conditioner performed well with no significant loss of energy efficiency. Post-run analysis of the refrigerant, compressor lubricant oil, compressor, compressor outlet tubing, and the filter/dryer showed minor effects but nothing that was considered significant. The project was very successful. All objectives were achieved, and the performance of Ikon B indicates that it can easily be retrofitted into R-22 air conditioners to give 15 - 20% energy savings and a 1 - 3 year payback of retrofit costs depending on location and use. Ikon B has the potential to be a successful commercial product.

Edward McCullough; Patrick Dhooge; Jonathan Nimitz

2003-12-31T23:59:59.000Z

466

Mira Loma High School and Hopkins Junior High School from California Win  

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

Mira Loma High School and Hopkins Junior High School from Mira Loma High School and Hopkins Junior High School from California Win U.S. Department of Energy National Science Bowl Mira Loma High School and Hopkins Junior High School from California Win U.S. Department of Energy National Science Bowl May 4, 2009 - 12:00am Addthis WASHINGTON, DC - High school and middle school teams from California won the 2009 U.S. Department of Energy (DOE) National Science Bowl® today at the National Building Museum in Washington. Mira Loma High School from Sacramento beat Lexington High School from Lexington, Massachusetts in the high school national championship match. Hopkins Junior High School from Fremont, California beat Jonas Clarke Middle School from Lexington, Massachusetts in the middle school national championship match.

467

Magnetic lensing of extremely high energy cosmic rays in a galactic wind  

E-Print Network (OSTI)

We show that in the model of Galactic magnetic wind recently proposed to explain the extremely high energy (EHE) cosmic rays so far observed as originating from a single source (M87 in the Virgo cluster), the magnetic field strongly magnifies the fluxes and produces multiple images of the source. The apparent position on Earth of the principal image moves, for decreasing energies, towards the galactic south. It is typically amplified by an order of magnitude at $E/Z\\sim 2\\times 10^{20}$ eV, but becomes strongly demagnified below $10^{20}$ eV. At energies below $E/Z\\sim 1.3\\times 10^{20}$ eV, all events in the northern galactic hemisphere are due to secondary images, which have huge amplifications ($>10^2$). This model would imply strong asymmetries between the north and south galactic hemispheres, such as a (latitude dependent) upper cut-off value below $2\\times 10^{20}$ eV for CR protons arriving to the south and lower fluxes in the south than in the north above $10^{20}$ eV. The large resulting magnifications reduce the power requirements on the source, but the model needs a significant tunning between the direction to the source and the symmetry axis of the wind. If more modest magnetic field strengths were assumed, a scenario in which the observed EHE events are heavier nuclei whose flux is strongly lensed becomes also plausible and would predict that a transition from a light composition to a heavier one could take place at the highest energies.

Diego Harari; Silvia Mollerach; Esteban Roulet

2000-05-24T23:59:59.000Z

468

Thermal hydraulic performance testing of printed circuit heat exchangers in a high-temperature helium test facility  

SciTech Connect

In high-temperature gas-cooled reactors, such as a very high temperature reactor (VHTR), an intermediate heat exchanger (IHX) is required to efficiently transfer the core thermal output to a secondary fluid for electricity generation with an indirect power cycle and/or process heat applications. Currently, there is no proven high-temperature (750–800 °C or higher) compact heat exchanger technology for high-temperature reactor design concepts. In this study, printed circuit heat exchanger (PCHE), a potential IHX concept for high-temperature applications, has been investigated for their heat transfer and pressure drop characteristics under high operating temperatures and pressures. Two PCHEs, each having 10 hot and 10 cold plates with 12 channels (semicircular cross-section) in each plate are fabricated using Alloy 617 plates and tested for their performance in a high-temperature helium test facility (HTHF). The PCHE inlet temperature and pressure were varied from 85 to 390 °C/1.0–2.7 MPa for the cold side and 208–790 °C/1.0–2.7 MPa for the hot side, respectively, while the mass flow rate of helium was varied from 15 to 49 kg/h. This range of mass flow rates corresponds to PCHE channel Reynolds numbers of 950 to 4100 for the cold side and 900 to 3900 for the hot side (corresponding to the laminar and laminar-to-turbulent transition flow regimes). The obtained experimental data have been analyzed for the pressure drop and heat transfer characteristics of the heat transfer surface of the PCHEs and compared with the available models and correlations in the literature. In addition, a numerical treatment of hydrodynamically developing and hydrodynamically fully-developed laminar flow through a semicircular duct is presented. Relations developed for determining the hydrodynamic entrance length in a semicircular duct and the friction factor (or pressure drop) in the hydrodynamic entry length region for laminar flow through a semicircular duct are given. Various hydrodynamic entrance region parameters, such as incremental pressure drop number, apparent Fanning friction factor, and hydrodynamic entrance length in a semicircular duct have been numerically estimated.

Sai K. Mylavarapu; Xiaodong Sun; Richard E. Glosup; Richard N. Christensen; Michael W. Patterson

2014-04-01T23:59:59.000Z

469

Pitting resistance of alloy 800 as a function of temperature and prefilming in high-temperature water  

SciTech Connect

Pitting behavior of alloy 800 was investigated as a function of temperature and prefilming in high-temperature water. The behavior was characterized in terms of pitting potential (U{sub p}) and pit density (n{sub p}). U{sub p} decreased with increasing temperature and chloride activity. Prefilming of test coupons over a period between 100 h and 5,000 h in ammoniated water at 300 C had no apparent influence on U{sub p} at room temperature, 180 C, and 300 C. However, the number of pits in prefilmed coupons was much higher than in coupons covered with an air passive layer. The effect of prefilming on pit nucleation was investigated in detail with regard to a model and test methods developed by Bianchi, et al. Density of pits in prefilmed coupons was at least 1 order of magnitude higher than in air passive coupons. Maximum pit density was measured after a prefilming period of 100 h. The effect was discussed in terms of Bianchi`s model and in terms of features of passive films. The initially amorphous metastable passive film on alloy 800 became crystalline at increased temperatures. Crystallization induced lattice defects, such as dislocations and grain boundaries, in the passive film. The film grew and slowly transformed into a thick oxide layer. The transformation process was associated with enhanced susceptibility to pit nucleation.

Stellwag, B. [Siemens Power Generation, Erlangen (Germany)

1997-02-01T23:59:59.000Z

470

423A HIGH-PERFORMANCE COMPUTING/NUMERICAL The International Journal of High Performance Computing Applications,  

E-Print Network (OSTI)

423A HIGH-PERFORMANCE COMPUTING/NUMERICAL The International Journal of High Performance Computing and barriers in the development of high-performance computing (HPC) algorithms and software. The activity has computing, numerical analy- sis, roadmap, applications and algorithms, software 1 The High-performance

Higham, Nicholas J.

471

High-Level Information Fusion and Mission Planning in Highly Anisotropic Threat Spaces  

E-Print Network (OSTI)

High-Level Information Fusion and Mission Planning in Highly Anisotropic Threat Spaces Mark sharing and high-level information fusion to allow for the visualisation of highly anisotropic threat options. Keywords: Information Fusion, Threat Map, Tactical Planning. 1 Introduction We present a first

Witkowski, Mark

472

High Energy Astrophysics: Overview 1/47 High Energy Astrophysics in Context  

E-Print Network (OSTI)

High Energy Astrophysics: Overview 1/47 High Energy Astrophysics in Context 1 Some references The following set of volumes is an outstanding summary of the field of High Energy Astrophysics and its relation to the rest of Astrophysics High Energy Astrophysics, Vols. 1,2 and 3. M.S. Longair, Cam- bridge University

Bicknell, Geoff

473

[ HIGH PERFORMANCE BUILDING STANDARD] STATE OF MONTANA HIGH PERFORMANCE BUILDING STANDARDS  

E-Print Network (OSTI)

[ HIGH PERFORMANCE BUILDING STANDARD] PART 2 HPBS STATE OF MONTANA HIGH PERFORMANCE BUILDING. These High Performance Building Standards are promulgated to implement the directives established in SB 49 which amended Section 17-7-201, MCA. B. These High Performance Building Standards were adopted on June 1

Dyer, Bill

474

Margaretta High School | Open Energy Information  

Open Energy Info (EERE)

Margaretta High School Margaretta High School Jump to: navigation, search Name Margaretta High School Facility Margaretta High School Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Owner Margaretta High School Energy Purchaser Margaretta High School Location Castalia OH Coordinates 41.39923794°, -82.80122995° 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":41.39923794,"lon":-82.80122995,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

475

Bellevue High School | Open Energy Information  

Open Energy Info (EERE)

Bellevue High School Bellevue High School Jump to: navigation, search Name Bellevue High School Facility Bellevue High School Sector Wind energy Facility Type Small Scale Wind Facility Status In Service Owner Bellevue High School Energy Purchaser Bellevue High School Location Bellevue WA Coordinates 41.28241024°, -82.84591019° 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":41.28241024,"lon":-82.84591019,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

476

The high energy emission from black holes  

E-Print Network (OSTI)

The origin of the high energy emission (X-rays and gamma-rays) from black holes is still a matter of debate. We present new evidence that hard X-ray emission in the low/hard state may not be dominated by thermal Comptonization. We present an alternative scenario for the origin of the high energy emission that is well suited to explain the high energy emission from GRO J1655-40.

M. D. Caballero-Garcia; J. M. Miller; E. Kuulkers

2007-11-06T23:59:59.000Z

477

High Performance Buildings Database | Open Energy Information  

Open Energy Info (EERE)

High Performance Buildings Database High Performance Buildings Database Jump to: navigation, search The High Performance Buildings Database (HPBD), developed by the United States Department of Energy and the National Renewable Energy Laboratory, is "a unique central repository of in-depth information and data on high-performance, green building projects across the United States and abroad."[1] Map of HPBD entries Loading map... {"format":"googlemaps3","type":"ROADMAP","types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"limit":1000,"offset":0,"link":"all","sort":[""],"order":[],"headers":"show","mainlabel":"-","intro":"","outro":"","searchlabel":"\u2026

478

High Temperature Oxidation Resistance and Surface Electrical...  

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

plates with oxidation resistant coatings. Candidate coatings must exhibit chemical and thermal-mechanical stability and high electrical conductivity during long-term...

479

HIGH-TECH BUILDINGS MARKET TRANSFORMATION PROJECT  

E-Print Network (OSTI)

LBNL-49112 HT-457 HIGH-TECH BUILDINGS MARKET TRANSFORMATION PROJECT Cleanroom Energy Benchmarking..............................................................................................................1 Cleanroom Energy Benchmarking..........................................................................................................................4 1. TASK ONE-CLEANROOM ENERGY BENCHMARKING........................................................5

480

Muons from high-energy cosmic photino  

Science Journals Connector (OSTI)

The muon production at photino-nucleon $$(\\bar \\gamma \\mathcal{N})$$ interaction for high-energy photino (E?)104GeV)...

V. S. Berezinsky; E. V. Bugaev; E. S. Zaslavskaya

Note: This page contains sample records for the topic "high apparent hurdle" 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

High performance carbon nanocomposites for ultracapacitors  

DOE Patents (OSTI)

The present invention relates to composite electrodes for electrochemical devices, particularly to carbon nanotube composite electrodes for high performance electrochemical devices, such as ultracapacitors.

Lu, Wen

2012-10-02T23:59:59.000Z

482

DOE High Performance Computing Operational Review  

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

HPCOR DOE High Performance Computing Operational Review (HPCOR) All logos Enabling Data-Driven Scientific Discovery at HPC Facilities June 18-19, 2014 California State University,...

483

NASA High Contrast Imaging for Exoplanets  

Science Journals Connector (OSTI)

Described is NASA's ongoing program for detection and characterization of exo-solar planets via high-contrast imaging. Some of the more promising proposed techniques under assessment...

Lyon, Richard

484

Webinar: Highly Efficient Solar Thermochemical Reaction Systems  

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

Video recording and text version of the Fuel Cell Technologies Office webinar titled "Highly Efficient Solar Thermochemical Reaction Systems," originally presented on January 13, 2015.

485

TAP Webinar: High Performance Outdoor Lighting Accelerator  

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

Hosted by the Technical Assistance Program (TAP), this webinar will cover the recently announced expansion of the Better Buildings platform —the High Performance Outdoor Lighting Accelerator (HPOLA).

486

A High-Performance PHEV Battery Pack  

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

a reliable and highly efficient thermal management system Objective Simple Structure and Manufacturing Positive terminal Negative terminal Lead film (insulation tape) Stack and...

487

High-frequency resonances in photorefractive crystals  

Science Journals Connector (OSTI)

Two-wave mixing in photorefractive materials is investigated for the case of applied dc electric fields and large detuning frequencies and for high-frequency alternating electric...

Grunnet-Jepsen, A; Aubrecht, I; Solymar, L

1995-01-01T23:59:59.000Z

488

Making glue in high energy nuclear collisions  

E-Print Network (OSTI)

We discuss a real time, non-perturbative computation of the transverse dynamics of gluon fields at central rapidities in very high energy nuclear collisions.

Alex Krasnitz; Raju Venugopalan

1999-05-12T23:59:59.000Z

489

High School Internship | Princeton Plasma Physics Lab  

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

High School Internships, students must be: United States citizens or permanent resident alien at the time of applying Able to obtain transportation to and from the laboratory. (The...

490

Highly Efficient Solar Thermochemical Reaction Systems  

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

Download presentation slides from the DOE Fuel Cell Technologies Office webinar "Highly Efficient Solar Thermochemical Reaction Systems" held on January 13, 2015.

491

Nanostructured High Temperature Bulk Thermoelectric Energy Conversion...  

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

Efficient Automotive Waste Heat Recovery Multi-physics modeling of thermoelectric generators for waste heat recovery applications Nanostructured High-Temperature Bulk...

492

High Temperature Thermoelectric Materials Characterization for...  

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

2009 -- Washington D.C. lmp06wang.pdf More Documents & Publications High-Temperature Thermoelectric Materials Characterization for Automotive Waste Heat Recovery: Success...

493

National High Magnetic Field Laboratory - Publications  

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

Lett. Physica B Physica C Physica E Polymer Polymer J. Proc. Physical Phenomena at High Magnetic Fields - IV Protein Science PROTEINS: Structure, Function and Genetics Rapid...

494

High-Pressure Model Catalyst System | EMSL  

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

of one atmosphere or below in a reactor situated just below an ultra-high vacuum (UHV) chamber. In particular, heterogeneous catalytic reactions at realistic pressures over...

495

Materials Characterization Capabilities at the High Temperature...  

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

Laboratory and HTML User Program Success Stories Materials Characterization Capabilities at the High Temperature Materials Laboratory: Focus on Carbon Fiber and Composites...

496

Multidisciplinary University Research Initiative: High Operating...  

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

University Research Initiative (MURI) to develop high-operating temperature heat-transfer fluids for concentrating solar power (CSP) applications. The following...

497

SAFETY PROCEDURE SP-24 NATIONAL HIGH MAGNETIC  

E-Print Network (OSTI)

SAFETY PROCEDURE SP-24 NATIONAL HIGH MAGNETIC FIELD LABORATORY NHMFL FLORIDA STATE UNIVERSITY SAFETY PROCEDURE SP-24 VISITOR AND CONTRACTOR SAFETY DIRECTOR, ENVIRONMENTAL, HEALTH, SAFETY & SECURITY Angela Sutton

Weston, Ken

498

National High Magnetic Field Laboratory - Scientist Profiles...  

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

"Spatially resolved electronic structure inside and outside the vortex cores of a high-temperature superconductor", Nature 413, 501-504 (2001). 30. V. F. Mitrovi, E. E....

499

High Temperature Materials Laboratory (HTML) - PSD Directorate  

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filler A National Resource for Collaborative Materials Research The High Temperature Materials Laboratory (HTML) User Program is on hiatus due to federal budget reductions....

500

Nanostructured Thermoelectric Materials and High Efficiency Power...  

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

Nanostructured Thermoelectric Materials and High Efficiency Power Generation Modules Home Author: T. Hogan, A. Downey, J. Short, S. D. Mahanti, H. Schock, E. Case Year: 2007...