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


1

Structure of aluminum hydroxide powders obtained as a byproduct of hydrogen fuel production  

Science Journals Connector (OSTI)

The structure of aluminum hydroxide powders obtained as byproducts of hydrogen fuel production was investigated. One of the main initial components comprised aluminum-magnesium chips with 0.6, 6 and 12 wt.% ma...

A. D. Shlyapin; A. Yu. Omarov; V. P. Tarasovskii; Yu. G. Trifonov

2013-09-01T23:59:59.000Z

2

Role of cold isostatic pressing in the formation of the properties of ZrO{sub 2}-base ceramics obtained from ultradisperse powders  

SciTech Connect (OSTI)

The physicomechanical properties of ceramics obtained from plasmachemical and sol-gel powders of partially stabilized (3% Y{sub 2}O{sub 3}) zirconia (PSZ) and its compositions with 20% Al{sub 2}O{sub 3} by cold isostatic pressing (CIP) at a pressure of at most 2 GPa and sintering at 1300-1650{degrees}C are investigated. It is established that plasmachemical PSZ exhibits its best properties (K{sub 1c} = 7.8 MPa {center_dot} m{sup 1/2}, a strength of 650 MPa) only after complete disintegration at a CIP of 0.1 GPa and a sintering temperature of 1650{degrees}C, when the material is sintered to a density of 5.5 g/cm{sup 3}. After partial stabilization and CIP at 0.1 GPa the plasmachemical composition of PSZ + 20% Al{sub 2}O{sub 3} is sintered at 1650{degrees}C to a density of 4.7 g/cm{sup 3}, but has K{sub 1c} = 8.5 MPa {center_dot} m{sup 1/2} and a strength of 700 MPa. The deagglomerated sol-gel powder exhibits properties at a level of K{sub 1c} = 12.4 MPa {center_dot} m{sup 1/2} and a strength of 950 MPa at a density above 6.0 g/cm{sup 3} after CIP at 0.3 GPa and sintering at 1450{degrees}C. The latter obviously has the best mechanical properties of all the investigated materials.

Akimov, G.Y.; Prokhorov, I.Y.; Gorelik, I.V. [Donetsk Physicotechnical Institute (Ukraine)] [and others

1995-09-01T23:59:59.000Z

3

A Textile Information Resource for Extension Agents and 4-H Leaders Pamela J. Brown, Ph.D.  

E-Print Network [OSTI]

FIBERS A Textile Information Resource for Extension Agents and 4-H Leaders 1999 Pamela J. Brown, Ph cotton tree -lightweight, soft fiber -with use, has a tendency to break down into a powder -used Abaca -obtained from a member of the banana tree family; sometimes referred to as Manila hemp -produced

4

Powder Diffraction  

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

Powder Diffraction Powder Diffraction Ashfia Huq Spallation Neutron Source Oak Ridge National Laboratory 2 Managed by UT-Battelle for the U.S. Department of Energy Bragg's law W.H. Bragg (1862-1942) W.L. Bragg (1890-1971) *Zinc Blend (fcc not sc) *NaCl (not molecular) *Diamond (two overlapping fcc lattice) Shared 1915 Nobel Prize 3 Managed by UT-Battelle for the U.S. Department of Energy Where are the atoms? X-ray: (l : 10 -9 m - 10 -11 m) l[Å] = 12.398/E ph [keV] Source: * Lab diffractometers * Synchrotron Sources Neutron: (thermal l : 1-4Å) E n [meV] =81.89/ l 2 [Å] Source: * Reactors (fission) * Spallation Source We need wavelength (l) ~ Object size (for condensed matter that is Å) 4 Managed by UT-Battelle for the U.S. Department of Energy

5

Atmospheres of Brown Dwarfs  

E-Print Network [OSTI]

Brown Dwarfs are the coolest class of stellar objects known to date. Our present perception is that Brown Dwarfs follow the principles of star formation, and that Brown Dwarfs share many characteristics with planets. Being the darkest and lowest mass stars known makes Brown Dwarfs also the coolest stars known. This has profound implication for their spectral fingerprints. Brown Dwarfs cover a range of effective temperatures which cause brown dwarfs atmospheres to be a sequence that gradually changes from a M-dwarf-like spectrum into a planet-like spectrum. This further implies that below an effective temperature of atmospheres of objects marking the boundary between M-Dwarfs and brown dwarfs. Recent developments have sparked the interest in plasma processes in such very cool atmospheres: sporadic and quiescent radio emission has been observed in combination with decaying Xray-activity indicators across the fully convective boundary.

Helling, Christiane

2014-01-01T23:59:59.000Z

6

Silica powders for powder evacuated thermal insulating panel and method  

DOE Patents [OSTI]

A powder evacuated thermal insulating panel using generally spherical and porous silica particles of a median size less than about 100 nanometers in diameter, a pour packing density of about 0.4 to 0.6 g/cm.sup.3 and an external surface area in the range of about 90 to 600 m.sup.2/ g is described. The silica powders are prepared by reacting a tetraakyl silicate with ammonia and water in an alcohol solvent, distilling the solution after the reaction to remove the ammonia and recover the alcohol. The resulting aqueous slurry was dried, ball-milled, and dried again to provide the silica particles with defined internal and external porosity. The nanometer size and the large external surface area of the silica particles along with the internal and external porosity of the silica particles provide powder evacuated thermal insulating panels with significantly higher R-values than obtainable using previously known silica powders.

Harris, Michael T. (Knoxville, TN); Basaran, Osman A. (Oak Ridge, TN); Kollie, Thomas G. (Oak Ridge, TN); Weaver, Fred J. (Knoxville, TN)

1996-01-01T23:59:59.000Z

7

Silica powders for powder evacuated thermal insulating panel and method  

DOE Patents [OSTI]

A powder evacuated thermal insulating panel using generally spherical and porous silica particles of a median size less than about 100 nanometers in diameter, a pour packing density of about 0.4 to 0.6 g/cm{sup 3} and an external surface area in the range of about 90 to 600 m{sup 2}/g is described. The silica powders are prepared by reacting a tetraalkyl silicate with ammonia and water in an alcohol solvent, distilling the solution after the reaction to remove the ammonia and recover the alcohol. The resulting aqueous slurry was dried, ball-milled, and dried again to provide the silica particles with defined internal and external porosity. The nanometer size and the large external surface area of the silica particles along with the internal and external porosity of the silica particles provide powder evacuated thermal insulating panels with significantly higher R-values than obtainable using previously known silica powders. 2 figs.

Harris, M.T.; Basaran, O.A.; Kollie, T.G.; Weaver, F.J.

1996-01-02T23:59:59.000Z

8

Silica powders for powder evacuated thermal insulating panel and method  

DOE Patents [OSTI]

A powder evacuated thermal insulating panel using generally spherical and porous silica particles of a median size less than about 100 nanometers in diameter, a pour packing density of about 0.4 to 0.6 g/cm.sup.3 and an external surface area in the range of about 90 to 600 m.sup.2/ g is described. The silica powders are prepared by reacting a tetraakyl silicate with ammonia and water in an alcohol solvent, distilling the solution after the reaction to remove the ammonia and recover the alcohol. The resulting aqueous slurry was dried, ball-milled, and dried again to provide the silica particles with defined internal and external porosity. The nanometer size and the large external surface area of the silica particles along with the internal and external porosity of the silica particles provide powder evacuated thermal insulating panels with significantly higher R-values than obtainable using previously known silica powders.

Harris, Michael T. (Knoxville, TN); Basaran, Osman A. (Oak Ridge, TN); Kollie, Thomas G. (Oak Ridge, TN); Weaver, Fred J. (Knoxville, TN)

1995-01-01T23:59:59.000Z

9

Silica powders for powder evacuated thermal insulating panel and method  

DOE Patents [OSTI]

A powder evacuated thermal insulating panel using generally spherical and porous silica particles of a median size less than about 100 nanometers in diameter, a pour packing density of about 0.4 to 0.6 g/cm.sup.3 and an external surface area in the range of about 90 to 600 m.sup.2 /g is described. The silica powders are prepared by reacting a tetraakyl silicate with ammonia and water in an alcohol solvent, distilling the solution after the reaction to remove the ammonia and recover the alcohol. The resulting aqueous slurry was dried, ball-milled, and dried again to provide the silica particles with defined internal and external porosity. The nanometer size and the large external surface area of the silica particles along with the internal and external porosity of the silica particles provide powder evacuated thermal insulating panels with significantly higher R-values than obtainable using previously known silica powders.

Harris, Michael T. (Knoxville, TN); Basaran, Osman A. (Oak Ridge, TN); Kollie, Thomas G. (Oak Ridge, TN); Weaver, Fred J. (Knoxville, TN)

1994-01-01T23:59:59.000Z

10

Turfgrass Disease Profiles Brown Patch  

E-Print Network [OSTI]

Turfgrass Disease Profiles Brown Patch Richard Latin, Professor of Plant Pathology Brown patch to algae and moss infestation. Even mild brown patch outbreaks can spoil the appearance of golf greens and perennial ryegrass) also may sustain damage from brown patch infection. Disease Characteristics and Symptom

11

Multiple feed powder splitter  

DOE Patents [OSTI]

A device for providing uniform powder flow to the nozzles when creating solid structures using a solid fabrication system such as the directed light fabrication (DLF) process. In the DLF process, gas entrained powders are passed through the focal point of a moving high-power laser light which fuses the particles in the powder to a surface being built up in layers. The invention is a device providing uniform flow of gas entrained powders to the nozzles of the DLF system. The device comprises a series of modular splitters which are slidably interconnected and contain an integral flow control mechanism. The device can take the gas entrained powder from between one to four hoppers and split the flow into eight tubular lines which feed the powder delivery nozzles of the DLF system.

Lewis, Gary K. (Los Alamos, NM); Less, Richard M. (Los Alamos, NM)

2001-01-01T23:59:59.000Z

12

Multiple feed powder splitter  

DOE Patents [OSTI]

A device for providing uniform powder flow to the nozzles when creating solid structures using a solid fabrication system such as the directed light fabrication (DLF) process. In the DLF process, gas entrained powders are passed through the focal point of a moving high-power laser light which fuses the particles in the powder to a surface being built up in layers. The invention is a device providing uniform flow of gas entrained powders to the nozzles of the DLF system. The device comprises a series of modular splitters which are slidably interconnected and contain an integral flow control mechanism. The device can take the gas entrained powder from between one to four hoppers and split the flow into eight tubular lines which feed the powder delivery nozzles of the DLF system.

Lewis, Gary K. (Los Alamos, NM); Less, Richard M. (Los Alamos, NM)

2002-01-01T23:59:59.000Z

13

Steven Brown Oral History  

E-Print Network [OSTI]

Part 4 video platform video management video solutionsvideo player Part 5 video platform video management video solutionsvideo player Part 6 video platform video management video solutionsvideo player Part 7 video platform video... Under the Rainbow: Oral Histories of GLBTQ People in Kansas Steven Brown Oral History Part 2 video platform video management video solutionsvideo player Part 3 video platform video management video solutionsvideo player...

Brown, Steven; Albin, Tami

2010-11-24T23:59:59.000Z

14

brown-98.pdf  

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

High Resolution Validation in the Shortwave: High Resolution Validation in the Shortwave: ASTI/LBLRTM QME P. D. Brown, S. A. Clough, and E. J. Mlawer Atmospheric and Environmental Research, Inc. Cambridge, Massachusetts T. R. Shippert Pacific Northwest National Laboratory Richland, Washington F. J. Murcray Denver University Denver, Colorado Introduction To assess our modeling capability in the shortwave and to resolve issues including those described by Cess et al. (1995) and others (Li and Moreau 1996; Arking 1996), a Quality Measurement Experiment (QME) has been initiated that extends the approach of the longwave AERI/LBLRTM (atmospheric emitted radiance interferometer/line by line radiative transfer model) QME (Brown et al. 1998) to shorter wavelengths. This shortwave QME for the clear sky focuses upon three components: 1) the ability to accurately

15

Interaction between laser beam and powder stream in the process of laser cladding with powder feeding  

Science Journals Connector (OSTI)

Based on LambertBeer theorem and Mie's theory, the attenuation of laser power by a powder stream was calculated and the laser intensity distribution at the laser spot on the surface of a workpiece was obtained. Simultaneously, the temperature distribution of the powder particles arriving at different sites on the surface of the workpiece was computed following the heat equilibrium principle. The computed results revealed that for a given stream spread and speed of powder particles, the intensity distribution of the laser spot and the temperature distribution of the powder particles reaching the surface of the workpiece are both greatly affected by the powder feeding rate and the feeding angle. It is suggested that the presented results should be considered in the laser cladding process in order to control the dynamic processes in a laser molten pool.

Yan-Lu Huang; Gong-Ying Liang; Jun-Yi Su; Jian-Guo Li

2005-01-01T23:59:59.000Z

16

Pulsed Neutron Powder Diffraction  

Science Journals Connector (OSTI)

The nature and scope of powder diffraction with a white, pulsed beam of neutrons is discussed. Analysis of the data by the Rietveld profile technique is described in brief, and a range of applications in solid...

A. K. Cheetham

1988-01-01T23:59:59.000Z

17

Alabama Nuclear Profile - Browns Ferry  

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

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

18

Ultrafine hydrogen storage powders  

DOE Patents [OSTI]

A method of making hydrogen storage powder resistant to fracture in service involves forming a melt having the appropriate composition for the hydrogen storage material, such, for example, LaNi.sub.5 and other AB.sub.5 type materials and AB.sub.5+x materials, where x is from about -2.5 to about +2.5, including x=0, and the melt is gas atomized under conditions of melt temperature and atomizing gas pressure to form generally spherical powder particles. The hydrogen storage powder exhibits improved chemcial homogeneity as a result of rapid solidfication from the melt and small particle size that is more resistant to microcracking during hydrogen absorption/desorption cycling. A hydrogen storage component, such as an electrode for a battery or electrochemical fuel cell, made from the gas atomized hydrogen storage material is resistant to hydrogen degradation upon hydrogen absorption/desorption that occurs for example, during charging/discharging of a battery. Such hydrogen storage components can be made by consolidating and optionally sintering the gas atomized hydrogen storage powder or alternately by shaping the gas atomized powder and a suitable binder to a desired configuration in a mold or die.

Anderson, Iver E. (Ames, IA); Ellis, Timothy W. (Doylestown, PA); Pecharsky, Vitalij K. (Ames, IA); Ting, Jason (Ames, IA); Terpstra, Robert (Ames, IA); Bowman, Robert C. (La Mesa, CA); Witham, Charles K. (Pasadena, CA); Fultz, Brent T. (Pasadena, CA); Bugga, Ratnakumar V. (Arcadia, CA)

2000-06-13T23:59:59.000Z

19

Heat Resistance of Electric Arc Coatings Made of FeCrBAl Powder Wire  

Science Journals Connector (OSTI)

Electric metallized coatings made of FeCrBAl powder wire possess a high heat resistance at 700800C at the level ... the base material. To obtain heat-resistant electric metallized coatings of powder wire, it...

V. Pokhmurs'kyi; M. Student; B. Formanek; V. Serivka; Yu. Dz'oba

2003-11-01T23:59:59.000Z

20

Iowa Powder Atomization Technologies  

SciTech Connect (OSTI)

The same atomization effect seen in a fuel injector is being applied to titanium metal resulting in fine titanium powders that are less than half the width of a human hair. Titanium melts above 3,000F and is highly corrosive therefore requiring specialized containers. The liquid titanium is poured through an Ames Laboratory - USDOE patented tube which is intended to increase the energy efficiency of the atomization process, which has the ability to dramatically decrease the cost of fine titanium powders. This novel process could open markets for green manufacturing of titanium components from jet engines to biomedical implants.

None

2012-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

brown-99.PDF  

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

NCAR/ARM Multiple Antenna Profiler NCAR/ARM Multiple Antenna Profiler W.O.J. Brown, S. A. Cohn, M. E. Susedik, C. L. Martin, G. Maclean, and D. B. Parsons National Center for Atmospheric Research Atmospheric Technology Division Boulder, Colorado Introduction National Center for Atmospheric Research/Atmospheric Technology Division (NCAR/ATD), with the support of the U.S. Department of Energy (DOE) Atmospheric Radiation Measurement (ARM) Program, is developing an advanced wind profiler radar known as Multiple Antenna Profiler Radar (MAPR) (Cohn et al. 1997, 1998). The radar is a highly modified 915-MHz profiler (Radian LAP-3000) and is designed to measure wind and turbulence at a rate considerably faster than traditional wind profilers. The radar has four vertically pointing closely spaced receiving antenna and uses spaced

22

Method to blend separator powders  

DOE Patents [OSTI]

A method for making a blended powder mixture, whereby two or more powders are mixed in a container with a liquid selected from nitrogen or short-chain alcohols, where at least one of the powders has an angle of repose greater than approximately 50 degrees. The method is useful in preparing blended powders of Li halides and MgO for use in the preparation of thermal battery separators.

Guidotti, Ronald A. (Albuquerque, NM); Andazola, Arthur H. (Albuquerque, NM); Reinhardt, Frederick W. (Albuquerque, NM)

2007-12-04T23:59:59.000Z

23

Powder transport model for laser cladding by lateral powder feeding: I. Powder flow field with cylindrical distribution  

Science Journals Connector (OSTI)

Powder transport ratio is defined as the mass ratio of powder particles fed into the molten pool to all powders transported in the process of laser cladding by lateral powder feeding. According to the...

Xinyong Gong; Yongzhong Zhang; Mingkun Liu

2013-08-01T23:59:59.000Z

24

POWDER: The Neutron Powder Diffractometer at HFIR | ORNL Neutron Sciences  

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

Neutron Powder Diffractometer Neutron Powder Diffractometer Neutron Powder Diffractometer. Neutron Powder Diffractometer. The HB-2A diffractometer is a workhorse instrument used to conduct crystal structural and magnetic structural studies of powdered and ceramic samples, particularly as a function of intensive conditions (T, P, H, etc.). Powder diffraction data collected on this instrument are ideally suited for the Rietveld method. A full range of ancillary sample environments can be used, including cryofurnaces (4-800 K), furnaces (to 1800 K), cryostats (to 0.3 K), and cryomagnets (to 7 T). The Powder Diffractometer has a Debye-Scherrer geometry. The detector bank has 44 3He tubes, each with 6' Soller collimators. A germanium wafer-stack monochromator is vertically focusing and provides one of three principal

25

Brown, Lipton, and the Prospects of High-level IBE Brown's Project  

E-Print Network [OSTI]

Brown, Lipton, and the Prospects of High-level IBE Brown's Project With Brown's paper we turn question about the selection procedures which scientists use for identifying those theories which

Fitelson, Branden

26

Browning: Email in Response to Smart Grid Request for Information...  

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

Browning: Email in Response to Smart Grid Request for Information Browning: Email in Response to Smart Grid Request for Information Email from Stephen Browning explaing the two...

27

17 Years of Lithium Brown Dwarfs 10/21/12Ringberg Brown Dwarfs 1  

E-Print Network [OSTI]

17 Years of Lithium Brown Dwarfs 10/21/12Ringberg Brown Dwarfs 1 #12;The Keck Search for Lithium 10/21/12Ringberg Brown Dwarfs 2 Lithium was not seen in objects which should have been comfortably into the brown "lithium dating". This adjustment in age meant that the inferred mass of PPl 15 rose to near the substellar

Joergens, Viki

28

Preparation of superconductor precursor powders  

DOE Patents [OSTI]

A process for the preparation of a precursor metallic powder composition for use in the subsequent formation of a superconductor. The process comprises the steps of providing an electrodeposition bath comprising an electrolyte medium and a cathode substrate electrode, and providing to the bath one or more soluble salts of one or more respective metals, such as nitrate salts of thallium, barium, calcium, and copper, which are capable of exhibiting superconductor properties upon subsequent appropriate treatment. The bath is continually energized to cause the metallic particles formed at the electrode to drop as a powder from the electrode into the bath, and this powder, which is a precursor powder for superconductor production, is recovered from the bath for subsequent treatment. The process permits direct inclusion of thallium in the preparation of the precursor powder, and yields an amorphous product mixed on an atomic scale to thereby impart inherent high reactivity. Superconductors which can be formed from the precursor powder include pellet and powder-in-tube products.

Bhattacharya, Raghunath (Littleton, CO); Blaugher, Richard D. (Evergreen, CO)

1995-01-01T23:59:59.000Z

29

The microstructure and hardness of molybdenum powders consolidated by plasma pressure compaction  

Science Journals Connector (OSTI)

Bulk molybdenum samples were prepared by consolidating molybdenum powders using the technique of plasma pressure compaction (P2C). The specimens were obtained by consolidating the powder particles under conditions of pulse and no-pulse and at two different temperatures. Results reveal that pulsing of the powders prior to consolidation had little influence on microhardness when compared to the samples that were obtained by consolidating the powder particles under no-pulse. Both nanohardness and microhardness measurements revealed a marginal decrease with an increase in temperature of compaction. The influence of processing variables on microstructural development and hardness is presented and discussed.

T.S Srivatsan; B.G Ravi; A.S Naruka; L Riester; M Petraroli; T.S Sudarshan

2001-01-01T23:59:59.000Z

30

Rotary powder feed through apparatus  

DOE Patents [OSTI]

A device for increasing the uniformity of solids within a solids fabrication system, such as a direct light fabrication (DLF) system in which gas entrained powders are passed through the focal point of a moving high-power light which fuses the particles in the powder to a surface being built up in layers. The invention provides a feed through interface wherein gas entrained powders input from stationary input lines are coupled to a rotating head of the fabrication system. The invention eliminates the need to provide additional slack in the feed lines to accommodate head rotation, and therefore reduces feed line bending movements which induce non-uniform feeding of gas entrained powder to a rotating head.

Lewis, Gary K. (Los Alamos, NM); Less, Richard M. (Los Alamos, NM)

2001-01-01T23:59:59.000Z

31

Neutron detectors comprising boron powder  

SciTech Connect (OSTI)

High-efficiency neutron detector substrate assemblies comprising a first conductive substrate, wherein a first side of the substrate is in direct contact with a first layer of a powder material comprising .sup.10boron, .sup.10boron carbide or combinations thereof, and wherein a conductive material is in proximity to the first layer of powder material; and processes of making said neutron detector substrate assemblies.

Wang, Zhehui; Morris, Christopher; Bacon, Jeffrey Darnell; Makela, Mark F; Spaulding, Randy Jay

2013-05-21T23:59:59.000Z

32

Women @ Energy: Nancy Brown | Department of Energy  

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

Women @ Energy: Nancy Brown Women @ Energy: Nancy Brown Women @ Energy: Nancy Brown March 15, 2013 - 11:00am Addthis Dr. Nancy Jeanne Brown is a Senior Scientist at the Lawrence Berkeley National Laboratory. Dr. Nancy Jeanne Brown is a Senior Scientist at the Lawrence Berkeley National Laboratory. Check out other profiles in the Women @ Energy series and share your favorites on Pinterest. Dr. Nancy Jeanne Brown is a Senior Scientist at the Lawrence Berkeley National Laboratory. Her research interests are atmospheric science, chemical kinetics, air quality and climate modeling, high performance computing, and combustion modeling. She received a B.S. in Chemistry at Virginia Polytechnic Institute, an M.S. in Molecular Physics and Ph.D. in Chemical Physics/Physical chemistry at the University of Maryland. Dr.

33

Fred L. Brown | Department of Energy  

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

Fred L. Brown Fred L. Brown About Us Fred L. Brown - Deputy Director of Office of Hearings & Appeals Fred L. Brown Fred Brown is the Deputy Director of the Office of Hearings and Appeals (OHA) of the U.S. Department of Energy (DOE). OHA is the quasi-judicial arm of DOE that conducts hearings and issues initial Departmental decisions with respect to any adjudicative proceedings which the Secretary may delegate. OHA's jurisdiction includes: deciding Freedom of Information and Privacy Act appeals; conducting administrative hearings and issuing Departmental decisions regarding personnel security clearance eligibility; conducting contractor employee "whistleblower" hearings and investigations; deciding applications for exception from DOE rules and regulations; and performing mediation services for the agency. Mr. Brown

34

Novel hollow powder porous structures  

SciTech Connect (OSTI)

Recent finite element calculations indicate that structures constructed from partially compacted hollow spheres exhibit a greater stiffness and strength than many other cellular structures at comparable density. It has been observed that gas atomization of metallic powders often leads to entrapment of the flow field gas. The resulting hollow powders are an unwanted by-product in the sense that they lead to porosity and future sites of defect in solid parts. Here a method is developed to separate the hollow powders according to their size, shape and density. They are then consolidated to a porous structure. Examples of this are given for both a titanium alloy and a nickel-base superalloy. The compressive mechanical properties are measured and compared to those of other porous structures.

Sypeck, D.J.; Parrish, P.A.; Wadley, H.N.G. [Univ. of Virginia, Charlottesville, VA (United States). School of Engineering and Applied Science

1998-12-31T23:59:59.000Z

35

Chemical-looping combustion of Victorian brown coal.  

E-Print Network [OSTI]

??Victoria has over 500 years of brown coal resources at present consumption rate. Current utilization of brown coal through conventional pulverized coal-fired power generation results (more)

Saha, Chiranjib

2012-01-01T23:59:59.000Z

36

Polymer quenched prealloyed metal powder  

DOE Patents [OSTI]

A powder metallurgical process of preparing a sheet from a powder having an intermetallic alloy composition such as an iron, nickel or titanium aluminide. The sheet can be manufactured into electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The iron aluminide has an entirely ferritic microstructure which is free of austenite and can include, in weight %, 4 to 32% Al, and optional additions such as .ltoreq.1% Cr, .gtoreq.0.05% Zr .ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Ni, .ltoreq.0.75% C, .ltoreq.0.1% B, .ltoreq.1% submicron oxide particles and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1% rare earth metal, and/or .ltoreq.3 % Cu. The process includes forming a non-densified metal sheet by consolidating a powder having an intermetallic alloy composition such as by roll compaction, tape casting or plasma spraying, forming a cold rolled sheet by cold rolling the non-densified metal sheet so as to increase the density and reduce the thickness thereof and annealing the cold rolled sheet. The powder can be a water, polymer or gas atomized powder which is subjecting to sieving and/or blending with a binder prior to the consolidation step. After the consolidation step, the sheet can be partially sintered. The cold rolling and/or annealing steps can be repeated to achieve the desired sheet thickness and properties. The annealing can be carried out in a vacuum furnace with a vacuum or inert atmosphere. During final annealing, the cold rolled sheet recrystallizes to an average grain size of about 10 to 30 .mu.m. Final stress relief annealing can be carried out in the B2 phase temperature range.

Hajaligol, Mohammad R. (Midlothian, VA); Fleischhauer, Grier (Midlothian, VA); German, Randall M. (State College, PA)

2001-01-01T23:59:59.000Z

37

brown-pd99.PDF  

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

High-Resolution Model/Measurement Validations High-Resolution Model/Measurement Validations of Solar Direct-Beam Flux P. D. Brown, E. J. Mlawer, and S. A. Clough Atmospheric and Environmental Research, Inc. Cambridge, Massachusetts T. R. Shippert Pacific Northwest National Laboratory Richland, Washington F. J. Murcray and A. W. Dybdahl University of Denver Denver, Colorado L. C. Harrison, P. W. Kiedron, and J. J. Michalsky State University of New York at Albany Albany, New York Introduction A balance between thermal and solar radiation at the top of the atmosphere is necessary for the stability of the earth's climate. To evaluate the behavior of the climate system resulting from a radiative perturbation of this balance, as in a "global warming" scenario, accurate knowledge is needed of the radiative properties of the atmosphere both in the thermal- and solar-dominated spectral regions. A

38

Laser Cladding with Multi Elemental Powder Feed  

Science Journals Connector (OSTI)

An investigation is reported on surface cladding with a laser using a mixed powder feed. Success has...

T. Takeda; W. M. Steen; D. R. F. West

1986-01-01T23:59:59.000Z

39

FIA-12-0044- In the Matter of Cynthia Brown  

Broader source: Energy.gov [DOE]

Cynthia Brown filed an Appeal regarding a request filed under the Freedom of Information Act. In March 2012, Ms. Brown filed a request for records regarding her late mother. In a July 2012 determination, the DOEs Office of Health, Safety and Security (HSS) issued a determination in response to Ms. Browns request.

40

Chelsea Brown | Center for Bio-Inspired Solar Fuel Production  

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

Brown Graduate student Subtask 4 project: "Water Oxidation using Functionalized Porphyrin Chromophores and Iridium Catalyst"...

Note: This page contains sample records for the topic "brown powder obtained" 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 - alloy powder prepared Sample Search Results  

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

in ODS Alloys II Interim Report on Contract 1DX-SY382V Summary: -atomised master alloy powder was obtained and specimens prepared for SEM analysis in the whole and sectioned...

42

MESOSCALE SIMULATIONS OF POWDER COMPACTION  

SciTech Connect (OSTI)

Mesoscale 3D simulations of shock compaction of metal and ceramic powders have been performed with an Eulerian hydrocode GEODYN. The approach was validated by simulating a well-characterized shock compaction experiment of a porous ductile metal. Simulation results using the Steinberg material model and handbook values for solid 2024 aluminum showed good agreement with experimental compaction curves and wave profiles. Brittle ceramic materials are not as well studied as metals, so a simple material model for solid ceramic (tungsten carbide) has been calibrated to match experimental compaction curves. Direct simulations of gas gun experiments with ceramic powders have been performed and showed good agreement with experimental data. The numerical shock wave profile has same character and thickness as that measured experimentally using VISAR. The numerical results show reshock states above the single-shock Hugoniot line as observed in experiments. We found that for good quantitative agreement with experiments 3D simulations are essential.

Lomov, Ilya; Fujino, Don; Antoun, Tarabay; Liu, Benjamin [Lawrence Livermore National Laboratory, P. O. Box 808, Livermore CA 94551 (United States)

2009-12-28T23:59:59.000Z

43

brown out | OpenEI Community  

Open Energy Info (EERE)

the grid? black out brown out bulk power system electricity grid future grid grid history security Smart Grid transmission We all rely on it but what do you really know about our...

44

The construction of the Browns Bay Vessel  

E-Print Network [OSTI]

INVESTIGATIVE TECHNIQUES. 10 19 The Site. National Historic Sites Service Excavation and Raising of the Vessel Vessel on Display. The Vessel in 1985. 19 20 27 28 Method of Recording III THE CONSTRUCTION OF THE VESSEL 31 36 The Keel 36 The Stem... A flat-bottomed boat being built. 17 9 Forelocked eye-bolts from the midship beam of the Browne Bay Vessel 21 10 Broad arrow stamped in an eye-bolt from the Browns Bay Vessel. . . . . . . . . . . . . . . . . . . . . . . . . . . 22 11 Pulley...

Amer, Christopher Francis

2012-06-07T23:59:59.000Z

45

Compaction and Sintering of Mo Powders  

SciTech Connect (OSTI)

To support the development of Mo-99 production by NorthStar Medical Technologies, LLC, Mo metal powders were evaluated for compaction and sintering characteristics as they relate to Mo-100 accelerator target disk fabrication. Powders having a natural isotope distribution and enriched Mo-100 powder were examined. Various powder characteristics are shown to have an effect on both the compaction and sintering behavior. Natural Mo powders could be cold pressed directly to >90% density. All of the powders, including the Mo-100 samples, could be sintered after cold pressing to >90% density. As an example, a compacted Mo-100 disk reached 89.7% density (9.52 g/cm3) after sintering at 1000 C for 1 hr. in flowing Ar/4%H2. Higher sintering temperatures were required for other powder samples. The relationships between processing conditions and the resulting densities of consolidated Mo disks will be presented.

Nunn, Stephen D [ORNL] [ORNL; Kiggans, Jim [ORNL] [ORNL; Bryan, Chris [ORNL] [ORNL

2013-01-01T23:59:59.000Z

46

E-Print Network 3.0 - alloy powders obtained Sample Search Results  

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

ribbon, seem... .e. by lattice parameter variation, through addition of a transition metal: ... Source: Ecole Polytechnique, Centre de mathmatiques Collection: Mathematics 24...

47

The microhardness and microstructural characteristics of bulk molybdenum samples obtained by consolidating nanopowders by plasma pressure compaction  

Science Journals Connector (OSTI)

In this paper is presented consolidation of nanometer-sized molybdenum powders to form bulk samples by the technique of Plasma Pressure Compaction (P2C). The nanocrystalline powders, consolidated at a temperature of 1400 C and pressure of 48 \\{MPa\\} for a time period of 3 min, had a theoretical density of 97%. The presence of distributed agglomerates in the nanocrystalline powders has an influence on density and microstructure of the bulk metal sample. To facilitate comparison micrometer-sized powders of molybdenum were also consolidated, at a temperature of 1650 C, and had a theoretical density of 98.5%. The bulk sample obtained by consolidating nanocrystalline powders had a higher microhardness (2.95 GPa) than the sample obtained by consolidating from micron-sized powders (2.16 GPa).

T.S Srivatsan; B.G Ravi; M Petraroli; T.S Sudarshan

2002-01-01T23:59:59.000Z

48

THE NEAR-INFRARED SPECTRUM OF THE BROWN DWARF GLIESE 229B T. R. GEBALLE  

E-Print Network [OSTI]

THE NEAR-INFRARED SPECTRUM OF THE BROWN DWARF GLIESE 229B T. R. GEBALLE Joint Astronomy Centre, 660 vapor. Water and methane are both shown to be strong absorbers in the near-infrared spectrum. (1995) obtained a low-resolution ( / 2 150) near-infrared (1­2.5 m) spectrum of Gl 229B and found

Sloan, Gregory C.

49

Process for the synthesis of iron powder  

DOE Patents [OSTI]

A process for preparing iron powder suitable for use in preparing the iron-potassium perchlorate heat-powder fuel mixture used in thermal batteries, comprises preparing a homogeneous, dense iron oxide hydroxide precipitate by homogeneous precipitation from an aqueous mixture of a ferric salt, formic or sulfuric acid, ammonium hydroxide and urea as precipitating agent; and then reducing the dense iron oxide hydroxide by treatment with hydrogen to prepare the iron powder. 2 figs.

Welbon, W.W.

1983-11-08T23:59:59.000Z

50

Process for the synthesis of iron powder  

DOE Patents [OSTI]

A process for preparing iron powder suitable for use in preparing the iron-potassium perchlorate heat-powder fuel mixture used in thermal batteries, comprises preparing a homogeneous, dense iron oxide hydroxide precipitate by homogeneous precipitation from an aqueous mixture of a ferric salt, formic or sulfuric acid, ammonium hydroxide and urea as precipitating agent; and then reducing the dense iron oxide hydroxide by treatment with hydrogen to prepare the iron powder.

Not Available

1982-03-06T23:59:59.000Z

51

Modeling of Powder Absorption in Additive Manufacturing  

Science Journals Connector (OSTI)

We have investigated optical absorption by a powder of metal spheres, via ray-trace calculations. The absorptivity significantly exceeds that for normal incidence, because of multiple...

Boley, Charles; Khairallah, Saad; Rubenchik, Alexander M

52

Brown County Wind | Open Energy Information  

Open Energy Info (EERE)

Brown County Wind Brown County Wind Facility Brown County Wind Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Adams Electric Cooperative Developer Adams Electric Cooperative Energy Purchaser Adams Electric Cooperative Location Mt. Sterling IL Coordinates 39.97340387°, -90.69939137° 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":39.97340387,"lon":-90.69939137,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

53

Doppler Imaging of Exoplanets and Brown Dwarfs  

E-Print Network [OSTI]

Doppler Imaging produces 2D global maps of rotating objects using high-dispersion spectroscopy. When applied to brown dwarfs and extrasolar planets, this technique can constrain global atmospheric dynamics and/or magnetic effects on these objects in un- precedented detail. I present the first quantitative assessment of the prospects for Doppler Imaging of substellar objects with current facilities and with future giant ground-based telescopes. Observations will have the greatest sensitivity in K band, but the H and L bands will also be useful for these purposes. To assess the number and availability of targets, I also present a compilation of all measurements of photometric variability, rotation period (P), and projected rotational velocity (v sin i) for brown dwarfs and exoplanets. Several bright objects are already accessible to Doppler Imaging with currently available instruments. With the development of giant ground-based telescopes, Doppler Imaging will become feasible for many dozens of brown dwarfs and...

Crossfield, Ian J M

2014-01-01T23:59:59.000Z

54

Taking It from Brown to Green: Renewable Energy on Contaminated...  

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

Taking It from Brown to Green: Renewable Energy on Contaminated Lands Taking It from Brown to Green: Renewable Energy on Contaminated Lands U.S. Department of Energy Office of...

55

Continuous Process for Low-Cost, High-Quality YSZ Powder  

SciTech Connect (OSTI)

This report describes results obtained by NexTech Materials, Ltd. in a project funded by DOE under the auspices of the Solid-State Energy Conversion Alliance (SECA). The project focused on development of YSZ electrolyte powder synthesis technology that could be ''tailored'' to the process-specific needs of different solid oxide fuel cell (SOFC) designs being developed by SECA's industry teams. The work in the project involved bench-scale processing work aimed at establishing a homogeneous precipitation process for producing YSZ electrolyte powder, scaleup of the process to 20-kilogram batch sizes, and evaluation of the YSZ powder products produced by the process. The developed process involved the steps of: (a) preparation of an aqueous hydrous oxide slurry via coprecipitation; (b) washing of residual salts from the precipitated hydroxide slurry followed by drying; (c) calcination of the dried powder to crystallize the YSZ powder and achieve desired surface area; and (d) milling of the calcined powder to targeted particle size. YSZ powders thus prepared were subjected to a comprehensive set of characterization and performance tests, including particle size distribution and surface area analyses, sintering performance studies, and ionic conductivity measurements. A number of different YSZ powder formulations were established, all of which had desirable performance attributes relative to commercially available YSZ powders. Powder characterization and performance metrics that were established at the onset of the project were met or exceeded. A manufacturing cost analysis was performed, and a manufactured cost of $27/kg was estimated based on this analysis. The analysis also allowed an identification of process refinements that would lead to even lower cost.

Scott L. Swartz; Michael Beachy; Matthew M. Seabaugh

2006-03-31T23:59:59.000Z

56

Fish imagery in art 68: Browns Eve with Fish and Snake  

Science Journals Connector (OSTI)

Joan Brown (19381990) was a professor of art at the University of California at Berkeley. A student of San Francisco Bay area artists Elmer Bischoff and David Park, at age 22 she was the youngest artist in th...

Marilyn A. Moyle

1994-01-01T23:59:59.000Z

57

ROBERT BROWN DEPUTY MANAGER, OAK RIDGE OFFICE  

E-Print Network [OSTI]

ROBERT BROWN DEPUTY MANAGER, OAK RIDGE OFFICE AUGUST 24, 2010 OVERVIEW OF THE UNITED STATES DEPARTMENT OF ENERGY OAK RIDGE OFFICE #12;( 2 ) KEY OAK RIDGE MISSIONS Oak Ridge Office · Science CONTRACTORS Oak Ridge National Laboratory Oak Ridge Institute for Science and Education Office of Scientific

58

Molecular Selectivity of Brown Carbon Chromophores  

SciTech Connect (OSTI)

Complementary methods of high-resolution mass spectrometry and micro-spectroscopy were utilized for molecular analysis of secondary organic aerosol (SOA) generated from ozonolysis of two structural monoterpene isomers: D-limonene (LSOA) and a-pinene (PSOA). Laboratory simulated aging of LSOA and PSOA, through conversion of carbonyls into imines mediated by NH3 vapors in humid air, resulted in selective browning of the LSOA sample, while the PSOA sample remained white. Comparative analysis of the reaction products in the aged LSOA and PSOA samples provided insights into chemistry relevant to formation of brown carbon chromophores. A significant fraction of carbonyl-imine conversion products with identical molecular formulas were detected in both samples. This reflects the high level of similarity in the molecular composition of these two closely related SOA materials. Several highly conjugated products were detected exclusively in the brown LSOA sample and were identified as potential chromophores responsible for the observed color change. The majority of the unique products in the aged LSOA sample with the highest number of double bonds contain two nitrogen atoms. We conclude that chromophores characteristic of the carbonyl- imine chemistry in LSOA are highly conjugated oligomers of secondary imines (Schiff bases) present at relatively low concentrations. Formation of this type of conjugated compounds in PSOA is hindered by the structural rigidity of the a-pinene oxidation products. Our results suggest that the overall light-absorbing properties of SOA may be determined by trace amounts of strong brown carbon chromophores.

Laskin, Julia; Laskin, Alexander; Nizkorodov, Sergey; Roach, Patrick J.; Eckert, Peter A.; Gilles, Mary K.; Wang, Bingbing; Lee, Hyun Ji; Hu, Qichi

2014-09-18T23:59:59.000Z

59

WHAT IS THE OBJECTIVE? Brown Bag Luncheon  

E-Print Network [OSTI]

WHAT IS THE OBJECTIVE? Brown Bag Luncheon Assessment Series #12;Student learning objectives periods of time, usually an entire program #12;·Objectives are based on two fundamental questions: ·What do you want your students to learn? ·What do you want your students to be able to do with what

Hemmers, Oliver

60

Brown dwarf populations in open clusters  

Science Journals Connector (OSTI)

......typically left-over energy from the accretion process...unresolved; however, the cost in telescope resources...dwarfs emit much of their energy, for instance in the...Brown dwarfs have no renewable source of energy; that which they radiate......

Tim Adams; Melvyn B. Davies; Richard F. Jameson; Aylwyn Scally

2002-07-01T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

Photon Sciences | Beamlines | XPD: X-ray Powder Diffraction  

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

XPD: X-ray Powder Diffraction XPD: X-ray Powder Diffraction Poster | Fact Sheet | Preliminary Design Report Scientific Scope XPD is a tunable facility with the ability to collect diffraction data at high x-ray energies (40keV-80keV), offering rapid acquisition (millisecond) and high angular resolution capabilities on the same instrument. XPD addresses future scientific challenges in, for example, hydrogen storage, CO2 sequestration, advanced structural ceramics, catalysis, and materials processing. Such materials of high technological value often are complex, nanostructured and heterogeneous. The scientific grand challenge is to obtain robust and quantitative (micro)structural information, not only in the ground state at ambient conditions, but also in situ or in operando with varying temperature, pressure, magnetic/electric/stress

62

Electrochemical Studies of Packed Iron Powder Electrodes: Effects...  

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

of Packed Iron Powder Electrodes: Effects of Common Constituents of Natural Waters on Corrosion Electrochemical Studies of Packed Iron Powder Electrodes: Effects of Common...

63

Enhanced performance of high temperature aluminate cementitious materials incorporated with Cu powders for thermal energy storage  

Science Journals Connector (OSTI)

Abstract Cementitious materials have been extensively developed in thermal energy storage system of solar thermal power. This paper deals with the volume heat capacity, thermal conductivity, thermal expansion coefficient, and compressive strength of aluminate cementitious thermal energy storage materials with the addition of metal Cu powders. The specimens were subjected to heat-treatment at 105, 350, and 900C, respectively. In the heating process, Cu powders gradually oxidized to Cu2O and CuO, providing a so-called mass compensation mechanism for the composite paste. Meanwhile, it indicates that volume heat capacity and thermal conductivity both increase with increasing Cu powders content and decrease with the rising temperature. The optimum thermal properties were obtained at 15wt% Cu powders loading. In addition, Calorimetric Test, XRD, TGDSC, and MIP are performed for characterizing the hydration rates, the phases, the mass/heat evolution, and the pore distribution, respectively.

Huiwen Yuan; Yu Shi; Chunhua Lu; Zhongzi Xu; Yaru Ni; Xianghui Lan

2015-01-01T23:59:59.000Z

64

Powder Dropper | Princeton Plasma Physics Lab  

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

Powder Dropper This device releases micron-sized dust particles at a controlled rate through an aperture in a vibrating crystal. The amount of dust released ranges from a few...

65

Continuous blending of dry pharmaceutical powders  

E-Print Network [OSTI]

Conventional batch blending of pharmaceutical powders coupled with long quality analysis times increases the production cycle time leading to strained cash flows. Also, scale-up issues faced in process development causes ...

Pernenkil, Lakshman

2008-01-01T23:59:59.000Z

66

Hanbury-Brown-Twiss analysis and dynamical correlations  

SciTech Connect (OSTI)

We test the applicability of the Hanbury-Brown-Twiss theory of bosonic enhancement for the analysis of heavy ion reactions. The correlation function is calculated in a solvable model. We find that the analysis in terms of the ratio of like-sign to unlike-sign pairs is more reliable and more stable than in terms of the ratio of pairs to single mesons. We also compare our exact results with the predictions obtained in a classical treatment of the source function, like the one that is used to extract correlation functions from cascade type simulations. In spite of agreement for extreme choices of the parameters of our model, the results of the approximation deviate strongly from the exact correlation function for Physical Noticed choices. We thus call into question the use of classical approximations for the analysis of reactions in which the final state is produced by a cascade of resonance decays.

Herrmann, M.; Bertsch, G.F.; Danielewicz, P.

1993-10-01T23:59:59.000Z

67

Synthesis and processing of monosized oxide powders  

DOE Patents [OSTI]

Uniform-size, high-purity, spherical oxide powders are formed by hydrolysis of alkoxide precursors in dilute alcoholic solutions. Under controlled conditions (concentrations of 0.03 to 0.2 M alkoxide and 0.2 to 1.5 M water, for example) oxide particles on the order of about 0.05 to 0.7 micron can be produced. Methods of doping such powders and forming sinterable compacts are also disclosed.

Barringer, Eric A. (Waltham, MA); Fegley, Jr., M. Bruce (Waban, MA); Bowen, H. Kent (Belmont, MA)

1985-01-01T23:59:59.000Z

68

Yang Keller and Brown MM 2012.pdf  

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

Genomics Genomics on Pretreatment Inhibitor Tolerance of Zymomonas mobilis Shihui Yang, Martin Keller, and Steven D. Brown Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 162 2 Genome Annotation of ZM4 Using Systems Biology Studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163 3 Identification of Genes Tolerant to Acetate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 3.1 nhaA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 164 3.2 hfq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169 3.3 nhaA and hfq . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 3.4 himA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170 4 Heterologous

69

Tantalum powder consolidation, modeling and properties  

SciTech Connect (OSTI)

A systematic approach was taken to investigate the consolidation of tantalum powders. The effects of sinter time, temperature and ramp rate; hot isostatic pressing (HIP) temperature and time; and powder oxygen content on consolidation density, kinetics, microstructure, crystallographic texture, and mechanical properties have been evaluated. In general, higher temperatures and longer hold times resulted in higher density compacts with larger grain sizes for both sintering and HIP`ing. HIP`ed compacts were consistently higher in density than sintered products. The higher oxygen content powders resulted in finer grained, higher density HIP`ed products than the low oxygen powders. Texture analysis showed that the isostatically processed powder products demonstrated a near random texture. This resulted in isotropic properties in the final product. Mechanical testing results showed that the HIP`ed powder products had consistently higher flow stresses than conventionally produced plates, and the sintered compacts were comparable to the plate material. A micromechanics model (Ashby HIP model) has been employed to predict the mechanisms active in the consolidation processes of cold isostatic pressing (CIP), HIP and sintering. This model also predicts the density of the end product and whether grain growth should be expected under the applied processing conditions.

Bingert, S.R.; Vargas, V.D.; Sheinberg, H.C.

1996-10-01T23:59:59.000Z

70

The Grizzly and the Big Brown Bears  

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

Grizzly and the Big Brown Bears Grizzly and the Big Brown Bears Nature Bulletin No. 655-A November 12, 1977 Forest Preserve District of Cook County George W. Dunne, President Roland F. Eisenbeis, Supt. of Conservation THE GRIZZLY AND THE BIG BROWN BEARS In the early days, more tall tales were told about "Old Ephraim, " the grizzly bear, than any other animal. It had the reputation of being a bloodthirsty enemy of man and was given the scientific name Ursus horribilis by a taxonomist who had never seen a live one but had heard and read some of those yarns about its terrible ferocity and prodigious strength. The Grizzly is very intelligent and shrewd but, actually, has a rather phlegmatic disposition. It avoids people and will not attack unless provoked. Then, a female with cubs is unpredictable, and big game hunters say that a wounded grizzly is the most dangerous animal on earth. But ordinarily, as Earnest Thompson Seton observed, Ephraim is a peaceful giant who is perfectly satisfied to let you alone if you leave him alone.

71

Royal Institution: Legacy of the late Mr. Harry Brown  

Science Journals Connector (OSTI)

... , it is understood that the munificent bequest to the Institution by the late Mr. Harry Brown, of the residue of his estate, reported in April last, is expected ...

1935-11-23T23:59:59.000Z

72

Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1994) |...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1994) Exploration Activity Details Location...

73

Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1995) |...  

Open Energy Info (EERE)

Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Activity: Flow Test At Fenton Hill HDR Geothermal Area (Brown, 1995) Exploration Activity Details Location...

74

Die-target for dynamic powder consolidation  

DOE Patents [OSTI]

A die/target is disclosed for consolidation of a powder, especially an atomized rapidly solidified metal powder, to produce monoliths by the dynamic action of a shock wave, especially a shock wave produced by the detonation of an explosive charge. The die/target comprises a rectangular metal block having a square primary surface with four rectangular mold cavities formed therein to receive the powder. The cavities are located away from the geometrical center of the primary surface and are distributed around such center while also being located away from the geometrical diagonals of the primary surface to reduce the action of reflected waves so as to avoid tensile cracking of the monoliths. The primary surface is covered by a powder retention plate which is engaged by a flyer plate to transmit the shock wave to the primary surface and the powder. Spawl plates are adhesively mounted on other surfaces of the block to act as momentum traps so as to reduce reflected waves in the block.

Flinn, John E. (Idaho Falls, ID); Korth, Gary E. (Blackfoot, ID)

1986-01-01T23:59:59.000Z

75

Light brown apple moths arrival in California worries commodity groups  

E-Print Network [OSTI]

control of light brown apple moth, Epi- phyas postvittana (2007a. Light brown apple moth host list. www.cdfa.ca.gov/p. CDFA. 2007b. Light brown apple moth project: Advisories.

Varela, Lucia G.; Johnson, Marshall W; Strand, Larry; Wilen, Cheryl A; Pickel, Carolyn

2008-01-01T23:59:59.000Z

76

Dry powder mixes comprising phase change materials  

DOE Patents [OSTI]

A free flowing, conformable powder-like mix of silica particles and a phase change material (PCM) is provided. The silica particles have a critical size of about 0.005 to about 0.025 microns and the PCM must be added to the silica in an amount of 75% or less PCM per combined weight of silica and PCM. The powder-like mix can be used in tableware items, medical wraps, tree wraps, garments, quilts and blankets, and particularly in applications for heat protection for heat sensitive items, such as aircraft flight recorders, and for preventing brake fade in automobiles, buses, trucks and aircraft. 3 figs.

Salyer, I.O.

1995-12-26T23:59:59.000Z

77

Dry powder mixes comprising phase change materials  

DOE Patents [OSTI]

A free flowing, conformable powder-like mix of silica particles and a phase change material (PCM) is provided. The silica particles have a critical size of about 0.005 to about 0.025 microns and the PCM must be added to the silica in an amount of 75% or less PCM per combined weight of silica and PCM. The powder-like mix can be used in tableware items, medical wraps, tree wraps, garments, quilts and blankets, and particularly in applications for heat protection for heat sensitive items, such as aircraft flight recorders, and for preventing brake fade in automobiles, buses, trucks and aircraft. 3 figures.

Salyer, I.O.

1994-12-06T23:59:59.000Z

78

1 INTRODUCTION The plastic behavior of a certain powder or soil sam-  

E-Print Network [OSTI]

1 INTRODUCTION The plastic behavior of a certain powder or soil sam- ple depends on the history in order to in- vestigate the elasto-plastic response of granular ma- terials. An alternative is obtained by the calculation of the interaction forces between parti- cles. This includes, e.g., plastic

Luding, Stefan

79

Boiler Gold Rush Prof. Johnny Brown (MATH 700)  

E-Print Network [OSTI]

Boiler Gold Rush Prof. Johnny Brown (MATH 700) jeb@math.purdue.edu #12;#12;#12;David McCullough, Jr help Always be prepared #12;Boiler Gold Rush Prof. Johnny Brown (MATH 700) jeb@math.purdue.edu #12;

Brown, Johnny E.

80

Harold Brown and Defense: From Scientist to Secretary  

Science Journals Connector (OSTI)

...plan for peaceful uses of nuclear energy. York recalls that it was Brown...advice on ques-tions beyond the ambit of the weapons lab, but his most...detail in much the way Brown did, is energy coor-dinator in the Carter Administration...

JOHN WALSH

1977-02-04T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

December 2013 EA Report Brown Bagger 1 Train the Trainer,  

E-Print Network [OSTI]

December 2013 EA Report Brown Bagger 1 Brown Bagger Train the Trainer, before Training Others. In truth, the secret to successful training is to train the trainers FIRST...before they train others. There is an entire skill set that needs to belong to a person conducting a given training, which includes knowing

Kim, Duck O.

82

BROWN Y FERNNDEZ, Heliconiini de Venezuela Los Heliconiini (Lepidoptera, Nymphalidae)  

E-Print Network [OSTI]

BROWN Y FERNÁNDEZ, Heliconiini de Venezuela 29 Los Heliconiini (Lepidoptera, Nymphalidae) de Venezuela KEITH S. BROWN, JR.* Y F. FERNÁNDEZ Y?PEZ** RESUMEN Se ilustran y presentan datos sobre variación, distribución y biología de las 42 especies y 88 subespecies de Heliconiini conocidas de Venezuela, con

Mallet, James

83

Biosorption of Trivalent Chromium on the Brown Seaweed Biomass  

E-Print Network [OSTI]

Biosorption of Trivalent Chromium on the Brown Seaweed Biomass Y E O U N G - S A N G Y U N , D O N brown alga Ecklonia biomass as a model system. Titration of the biomass revealed that it contains that various biosorbents are able to effectively remove chromium (4-11). Some of the biomass types have

Volesky, Bohumil

84

Project-Based Engineering Education at Brown University  

E-Print Network [OSTI]

in calculation-based, creative design projects, start- ing in their first semester engineering courseProject-Based Engineering Education at Brown University The School of Engineering at Brown. At the same time, students develop strong theoretical foundations in different areas of engineering before

85

Energy input, carbon intensity, and cost for ethanol produced from brown seaweed.  

E-Print Network [OSTI]

??Brown macroalgae or brown seaweed is a promising source of ethanol that may avoid the challenges of arable land use, water use, lignin content, and (more)

Philippsen, Aaron

2013-01-01T23:59:59.000Z

86

E-Print Network 3.0 - affects browning susceptibility Sample...  

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

Multidisciplinary Databases and Resources 4 Turfgrass Disease Profiles Brown Patch Summary: with brown margins occur on all affected grass species but are most evident...

87

Abiotic and biotic factors affecting light brown apple moth, Epiphyas postvittana, in California  

E-Print Network [OSTI]

mortality of lightbrown apple moth. In: OCallaghan, M. (tryoni and the light brown apple moth Epiphyas postvittanaof the light brown apple moth, Epiphyas postvittana (

Buergi, Linda Patricia

2012-01-01T23:59:59.000Z

88

Symbiotic Associations in the Phenotypically-Diverse Brown Alga Saccharina japonica  

E-Print Network [OSTI]

1986) Sexual pheromones in algae. Biol Bull 170: 145175.in the Phenotypically-Diverse Brown Alga Saccharina japonicaRussia Abstract The brown alga Saccharina japonica (

Balakirev, Evgeniy S.; Krupnova, Tatiana N.; Ayala, Francisco J.

2012-01-01T23:59:59.000Z

89

Robust powder auto-indexing using many peaks  

Science Journals Connector (OSTI)

A new algorithm, CONOGRAPH, carries out exhaustive powder auto-indexing in a short time, even if the q values of many peaks are used for robust powder auto-indexing. Some results from CONOGRAPH are presented.

Oishi-Tomiyasu, R.

2014-03-11T23:59:59.000Z

90

Development and Testing of a BI-2212 Textured Powder Conductor  

E-Print Network [OSTI]

for Praxair powder in a 500 cP epoxy. .................................................................................................................. 23 Fig. 8: Texture vs. time for various epoxy and powder combinations. All data from an 8.9 T applied...

Damborsky, Kyle

2014-03-10T23:59:59.000Z

91

IEEE NANOSCIENCE and TECHNOLOGY BROWN BAG  

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

PLEASE PLEASE JOIN US! NANOSCIENCE and TECHNOLOGY BROWN BAG Friday, 7 November 2008 Noon - 1 pm Columbia River Room (public access available) PNNL, ETB Building (Q Avenue, Richland, WA) speaker Dr. Meyya Meyyappan Chief Scientist for Exploration Technology, NASA Ames Research Center & IEEE Electron Devices Society Distinguished Lecturer presenting Nanotechnology in Chemical and Bio Sensor Systems Abstract: There are strong research programs in nanotechnology related to chemical sensors, electromechanical devices, actuators, biosensors, and other nanodevices in leading laboratories across the world which use nanomaterials and other molecularly-engineered approaches. In many cases, practical systems demand seamless integration of the nanodevice with higher order structures, for example, MEMS. Examples of this using carbon nanotube based chemical and biosensors

92

Brown-J Bacteriol -12.pdf  

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

12):3290. DOI: 10.1128/JB.00473-12. 12):3290. DOI: 10.1128/JB.00473-12. J. Bacteriol. Keller and Edward A. Bayer Zamin Yang, Miriam L. Land, Sagar M. Utturkar, Martin Yuval Shoham, Dawn M. Klingeman, Courtney M. Johnson, Steven D. Brown, Raphael Lamed, Ely Morag, Ilya Borovok, Mutant Strain AD2 Derived Cellulose Adhesion-Defective thermocellum Wild-Type Strain YS and Draft Genome Sequences for Clostridium http://jb.asm.org/content/194/12/3290 Updated information and services can be found at: These include: REFERENCES http://jb.asm.org/content/194/12/3290#ref-list-1 at: This article cites 39 articles, 21 of which can be accessed free CONTENT ALERTS more» articles cite this article), Receive: RSS Feeds, eTOCs, free email alerts (when new http://journals.asm.org/site/misc/reprints.xhtml Information about commercial reprint orders:

93

L. A. Brown, M. C. Higuera  

Office of Scientific and Technical Information (OSTI)

L. L. A. Brown, M. C. Higuera Prepared by Sandia National Laboratories Albuquerque, New Mexico 87185 and L b SANDlA REPORT SAND974017 0 UC-700 Unlimited Release Printed February i 998 Weapon Container Catalog Volumes 1 & 2 -_ Issued by Sandia National Laboratories, operated for the United States Department of Energy by Sandia Corporation. NOTICE: This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Govern- ment nor any agency thereof, nor any of their employees, nor any of their contractors, subcontractors, or their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, prod-

94

Correlated spectral variability in brown dwarfs  

E-Print Network [OSTI]

Models of brown dwarf atmospheres suggest they exhibit complex physical behaviour. Observations have shown that they are indeed dynamic, displaying small photometric variations over timescales of hours. Here I report results of infrared (0.95-1.64 micron) spectrophotometric monitoring of four field L and T dwarfs spanning timescales of 0.1-5.5 hrs, the goal being to learn more about the physical nature of this variability. Spectra are analysed differentially with respect to a simultaneously observed reference source in order to remove Earth-atmospheric variations. The variability amplitude detected is typically 2-10%, depending on the source and wavelength. I analyse the data for correlated variations between spectral indices. This approach is more robust than single band or chisq analyses, because it does not assume an amplitude for the (often uncertain) noise level (although the significance test still assumes a shape for the noise power spectrum). Three of the four targets show significant evidence for cor...

Bailer-Jones, C A L

2007-01-01T23:59:59.000Z

95

In situ characterization of AIPO-14 using synchrotron powder diffraction.  

SciTech Connect (OSTI)

The separation of propane/propylene mixtures is an important yet difficult industrial process that can be accomplished by a pressure swing adsorption process using AlPO-14 as the adsorbent. Although the AlPO-14 structure has been studied with different techniques, the detailed structure under conditions of the adsorption process has not been clarified. We have used synchrotron x-ray powder diffraction and an in situ reactor system to obtain detailed structural information of AlPO-14 with the Rietvield method. Molecular modeling using the structural data allowed determination of the diffusion path of propylene in AlPO-14. The design of the in situ reactor system allows different chemicals to be loaded and the system to be heated and pressurized up to 90 psi with various gases or liquids. For this work, AlPO-14 powder was loaded into a 1 mm capillary tube and attached to the cell. Diffraction scans were collected during treatments in nitrogen, propane and propylene at various temperatures up to 300 C and various pressures up to 90 psig. A selected region of the x-ray diffraction patterns under different experimental conditions is shown in Fig.1. The diffraction patterns for AlPO-14 in nitrogen and propane are very similar, whereas the pattern in propylene changes considerably suggesting structure changes caused by adsorption of propylene into the pores.

Yang, N.; Greenlay, N.; Karapetrova, J.; Zschack, P.; Gatter, M.; Wilson, S.; Broach, R. W.; Experimental Facilities Division (APS); UOP

2006-01-01T23:59:59.000Z

96

Modelling the mechanical behaviour of pharmaceutical powders during compaction  

E-Print Network [OSTI]

are made of dry powder through a powder compaction process. In the pharmaceutical industry, billionsModelling the mechanical behaviour of pharmaceutical powders during compaction C.-Y. Wua,T, O.M. Ruddyb , A.C. Benthamb , B.C. Hancockc , S.M. Besta , J.A. Elliotta a Pfizer Institute for Pharmaceutical

Elliott, James

97

Dry powder mixes comprising phase change materials  

DOE Patents [OSTI]

Free flowing, conformable powder-like mix of silica particles and a phase change material (pcm) is disclosed. The silica particles have a critical size of about 7[times]10[sup [minus]3] to about 7[times]10[sup [minus]2] microns and the pcm must be added to the silica in an amount of 80 wt. % or less pcm per combined weight of silica and pcm. The powder-like mix can be used in tableware items, medical wraps, tree wraps, garments, quilts and blankets, and in cementitious compositions of the type in which it is beneficial to use a pcm material. The silica-pcm mix can also be admixed with soil to provide a soil warming effect and placed about a tree, flower, or shrub. 10 figures.

Salyer, I.O.

1993-10-19T23:59:59.000Z

98

Dry powder mixes comprising phase change materials  

DOE Patents [OSTI]

A free flowing, conformable powder-like mix of silica particles and a phase change material (p.c.m.) is disclosed. The silica particles have a critical size of about 7 [times] 10[sup [minus]3] to about 7 [times] 10[sup [minus]2] microns and the pcm must be added to the silica in an amount of 80 wt. % or less pcm per combined weight of silica and pcm. The powder-like mix can be used in tableware items, medical wraps, tree wraps, garments, quilts and blankets, and in cementitious compositions of the type in which it is beneficial to use a pcm material. The silica-pcm mix can also be admixed with soil to provide a soil warming effect and placed about a tree, flower, or shrub. 9 figs.

Salyer, I.O.

1992-04-21T23:59:59.000Z

99

EPR Investigation of Irradiated Curry Powder  

SciTech Connect (OSTI)

Gamma-ray irradiated curry powder, a well priced oriental spice was investigated in order to establish the ability of EPR to detect the presence and time stability of free irradiation free-radicals. Accordingly, curry powder aliquots were irradiated with gradually increasing absorbed doses up to 11.3 kGy. The EPR spectra of all irradiated samples show the presence of al last two different species of free radicals, whose concentration increased monotonously with the absorbed doses. A 100 deg. C isothermal annealing of irradiated samples has shown a differential reduction of amplitude of various components of the initial spectra, but even after 3.6 h of thermal treatment, the remaining amplitude represents no less then 30% of the initial ones. The same peculiarities have been noticed after more than one year storage at room temperature, all of them being very useful in establishing the existence of any previous irradiation treatment.

Duliu, O. G.; Ali, S. I. [University of Bucharest, Department of Atomic and Nuclear Physics, P.O. Box MG-11, 077125 Bucharest (Romania); Georgescu, R. [National Institute for Physics and Nuclear Engineering-Horia Hulubei, P.O. Box MG-6, 077125 Bucharest (Romania)

2007-04-23T23:59:59.000Z

100

Powder River Energy Corporation | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Jump to: navigation, search Name Powder River Energy Corporation Place Sundance, Wyoming Website precorp.coop/ Utility Id 19156 Utility Location Yes Ownership C NERC Location WECC Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] SGIC[2] Energy Information Administration Form 826[3] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Powder River Energy Corporation Smart Grid Project was awarded $2,554,807 Recovery Act Funding with a total project value of $5,109,614. Utility Rate Schedules Grid-background.png General Service (GS)-Single Phase Commercial General Service (GS)-Three phase Commercial General Service-Coal Bed Methane (GS-CBM)-Single Phase Commercial

Note: This page contains sample records for the topic "brown powder obtained" 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

Dry powder mixes comprising phase change materials  

DOE Patents [OSTI]

Free flowing, conformable powder-like mix of silica particles and a phase change material (p.c.m.) is disclosed. The silica particles have a critical size of about 7[times]10[sup [minus]3] to about 7[times]10[sup [minus]2] microns and the p.c.m. must be added to the silica in an amount of 80 wt. % or less p.c.m. per combined weight of silica and p.c.m. The powder-like mix can be used in tableware items, medical wraps, tree wraps, garments, quilts and blankets, and in cementitious compositions of the type in which it is beneficial to use a p.c.m. material. The silica-p.c.m. mix can also be admixed with soil to provide a soil warming effect and placed about a tree, flower, or shrub.

Salyer, I.O.

1993-05-18T23:59:59.000Z

102

Dry powder mixes comprising phase change materials  

DOE Patents [OSTI]

Free flowing, conformable powder-like mix of silica particles and a phase change material (PCM) is provided. The silica particles have a critical size of about 0.005 to about 0.025 microns and the PCM must be added to the silica in an amount of 75% or less PCM per combined weight of silica and PCM. The powder-like mix can be used in tableware items, medical wraps, tree wraps, garments, quilts and blankets, and in cementitious compositions of the type in which it is beneficial to use a PCM material. The silica-PCM mix can also be admixed with soil to provide a soil warming effect and placed about a tree, flower, or shrub. 2 figures.

Salyer, I.O.

1994-02-01T23:59:59.000Z

103

Numerical Simulation of Aerated Powder Consolidation1  

E-Print Network [OSTI]

applications. Typically a powder is stored in a bunker or silo, see Figure 1. During filling, air gets trapped of the container are neglected, in effect, treating only the case of cylindrical bunkers. In [4], that case. 1 #12;H(t) z bunker top surface z A(z) = R(z) 2 A(z+ z) = R(z+ z) 2 FIG. 1. Geometry and coordinate

104

Numerical Simulation of Aerated Powder Consolidation 1  

E-Print Network [OSTI]

applications. Typically a powder is stored in a bunker or silo, see Figure 1. During filling, air gets trapped of the container are neglected, in effect, treating only the case of cylindrical bunkers. In [4], that case. 1 #12; 2 K.A. KRISTY AND P.A. GREMAUD H(t) z bunker top surface dz A(z) = R(z) p 2 A(z+ z) = R(z+ z

105

Trace elements in brown coal and its products of combustion  

Science Journals Connector (OSTI)

Concentrations of 38 elements in brown coal, bottom ash and size fractionated ESP coal ash from the Belchatw I Power Plant were determined by INAA. Based on enrichment factors calculated relatively to iron an...

U. Tomza; P. Kaleta

1986-10-20T23:59:59.000Z

106

Edmund G. Brown Jr. LIFE HISTORY PARAMETERS OF  

E-Print Network [OSTI]

History Parameters of Common Marine Fish Subject to Entrainment. California Energy Commission, PIER · Renewable Energy Technologies · Transportation Life History Parameters of Common Southern California MEdmund G. Brown Jr. Governor LIFE HISTORY PARAMETERS OF COMMON SOUTHERN CALIFORNIA MARINE FISHES

107

Chemical Engineering The George R. Brown School of Engineering  

E-Print Network [OSTI]

environments. Courses in mathematics, chemistry, physics, and computational engineering provide the background120 Chemical Engineering The George R. Brown School of Engineering Chair Kyriacos Zygourakis to create a focus area in one of the following four disciplines: bioengineering, environmental engineering

Richards-Kortum, Rebecca

108

Molecular insights into the niche of harmful brown tides  

E-Print Network [OSTI]

Recurrent brown tide blooms caused by the harmful alga Alureococcus anophagefferens have decimated coastal ecosystems and shellfisheries along the Eastern U.S and South Africa. The exact mechanisms controlling bloom ...

Wurch, Louie L. (Louie Lorne)

2011-01-01T23:59:59.000Z

109

Edmund G. Brown, Jr. PIER INDUSTRIAL, AGRICULTURAL, AND  

E-Print Network [OSTI]

, petroleum refining, natural gas, beverage industry, water and wastewater, energy efficiency, industrial natural gas efficiency, electronics, Public Interest Energy R Edmund G. Brown, Jr. Governor PIER INDUSTRIAL, AGRICULTURAL, AND WATER ENERGY EFFICIENCY

110

Intern experience at Brown & Root, Inc.: an internship report  

E-Print Network [OSTI]

. The internship report outlines the process by which Brown & Root carries out the design and construction of offshore oil and gas production facilities ... A supplementary presentation of the author's previous experience at an oil company permits...

Kibbee, Stephen Edward, 1951-

2013-03-13T23:59:59.000Z

111

Effective temperature of an aging powder  

Science Journals Connector (OSTI)

The aging dynamics and the fluctuation-dissipation relation between the spontaneous diffusion induced by a random noise and the drift motion induced by a small stirring force are numerically investigated in a 3D schematic model of compacting powder: a gravity-driven lattice-gas with purely kinetic constraints. The compaction dynamics is characterized by a super-aging behavior and, in analogy with glasses, exhibits a purely dynamical time-scale-dependent effective temperature. A simple experiment to measure this quantity is suggested.

Mauro Sellitto

2001-05-11T23:59:59.000Z

112

Nanocrystalline carbon coatings and powders for medicine  

Science Journals Connector (OSTI)

All the allotropic forms of carbon, i.e., diamond, graphite and carbine, find applications in different areas of medicine, but diamond is specifically preferred. The unique properties of thin diamond layers, due to the highest biocompatibility of carbon resulting from the presence of this element in human body, make them candidates for producing biomaterials. Especially carbon in the form of a nanocrystalline diamond film has found industrial applications in the area of medical implants. Diamond Powder Particles (DPP), as an extended surface NCD, are useful for medical examinations. Different medical implants are covered with Nanocrystalline Diamond Coatings (NCD). NCD forms a diffusion barrier between implant and human environment.

Katarzyna Mitura; Anna Karczemska; Piotr Niedzielski; Jacek Grabarczyk; Witold Kaczorowski; Petr Louda; Stanislaw Mitura

2008-01-01T23:59:59.000Z

113

Laser production of articles from powders  

DOE Patents [OSTI]

Method and apparatus for forming articles from materials in particulate form in which the materials are melted by a laser beam and deposited at points along a tool path to form an article of the desired shape and dimensions. Preferably the tool path and other parameters of the deposition process are established using computer-aided design and manufacturing techniques. A controller comprised of a digital computer directs movement of a deposition zone along the tool path and provides control signals to adjust apparatus functions, such as the speed at which a deposition head which delivers the laser beam and powder to the deposition zone moves along the tool path.

Lewis, Gary K. (Los Alamos, NM); Milewski, John O. (Santa Fe, NM); Cremers, David A. (Los Alamos, NM); Nemec, Ronald B. (White Rock, NM); Barbe, Michael R. (White Rock, NM)

1998-01-01T23:59:59.000Z

114

Fabrication of ultrafine tungsten-based alloy powders by novel soda reduction process  

SciTech Connect (OSTI)

A novel reduction method has been developed to fabricate ultrafine tungsten heavy alloy powders, with ammonium metatungstate (AMT), iron(II) chloride tetrahydrate (FeCl{sub 2}.4H{sub 2}O), nickel(II) chloride hexahydrate (NiCl{sub 2}.6H{sub 2}O) as source materials and sodium tungstate dihydrate (Na{sub 2}WO{sub 4}.2H{sub 2}O) as a reductant. In the preparation of mixtures the amounts of the source components were chosen so as to obtain alloy of 93W-5Ni-2Fe composition (wt.%). The obtained powders were characterized by X-ray diffraction, XPS, field-emission scanning microscope (FESEM), and chemical composition was analyzed by EDX.

Lee, Dong-Won [Powder Technology Research Group, Korea Institute of Materials Science (KIMS), Changwon, Kyungnam, 641-010 (Korea, Republic of)] [Powder Technology Research Group, Korea Institute of Materials Science (KIMS), Changwon, Kyungnam, 641-010 (Korea, Republic of); Turaev, Farkhod, E-mail: farkhod_2002@yahoo.com [Powder Technology Research Group, Korea Institute of Materials Science (KIMS), Changwon, Kyungnam, 641-010 (Korea, Republic of)] [Powder Technology Research Group, Korea Institute of Materials Science (KIMS), Changwon, Kyungnam, 641-010 (Korea, Republic of); Kim, Ju-Hyeong [Powder Technology Research Group, Korea Institute of Materials Science (KIMS), Changwon, Kyungnam, 641-010 (Korea, Republic of)] [Powder Technology Research Group, Korea Institute of Materials Science (KIMS), Changwon, Kyungnam, 641-010 (Korea, Republic of); Yang, Mingchuan [W-base Heavy Alloy Research Group, Institute of Metal Research (IMR), 72 Wenhua-road, Shenyang, 110016 (China)] [W-base Heavy Alloy Research Group, Institute of Metal Research (IMR), 72 Wenhua-road, Shenyang, 110016 (China)

2010-03-15T23:59:59.000Z

115

Method for preparing metal powder, device for preparing metal powder, method for processing spent nuclear fuel  

DOE Patents [OSTI]

A method for producing metal powder is provided the comprising supplying a molten bath containing a reducing agent, contacting a metal oxide with the molten bath for a time and at a temperature sufficient to reduce the metal in the metal oxide to elemental metal and produce free oxygen; and isolating the elemental metal from the molten bath.

Park, Jong-Hee (Clarendon Hills, IL)

2011-11-29T23:59:59.000Z

116

The investigation of die-pressing and sintering behavior of ITP CP-Ti and Ti-6Al-4V powders  

SciTech Connect (OSTI)

This paper investigated the die-pressing and sintering behavior of the low-cost CP-Ti and Ti-6Al- 4V powders made by the Armstrong Process . The Armstrong powders have an irregular coral like, dendritic morphology, with a dendrite size of approximately 2-5 m. As-received as well as milled powders were uniaxially pressed at designated pressures up to 690 MPa to form disk samples with different aspect ratios. In the studied pressure range, an empirical powder compaction equation was applied to linearize the green density pressure relationship, and powder compaction parameters were obtained. The Armstrong Ti-64 powder exhibited a significantly higher sinterability than the CP-Ti powder. This was explained to be due to the higher diffusivity of V at the sintering temperature. The Ti-64 samples with a green density of 71.0% increased to 99.6% after sintering at 1300oC for 1 hour. An ex-situ technique was used to track the powder morphology change before and after sintering.

Chen, Wei [ORNL; Yamamoto, Yukinori [ORNL; Peter, William H [ORNL; Clark, Michael B [ORNL; Nunn, Stephen D [ORNL; Kiggans, Jim [ORNL; Muth, Thomas R [ORNL; Blue, Craig A [ORNL; Williams, James C [Ohio State University; Fuller, Brian [International Titanium Powder; Akhtar, Kamal [International Titanium Powder

2012-01-01T23:59:59.000Z

117

Iowa Powder Atomization Technologies, Inc. | Department of Energy  

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

Iowa Powder Iowa Powder Atomization Technologies, Inc. America's Next Top Energy Innovator Challenge 6067 likes Iowa Powder Atomization Technologies, Inc. Ames Laboratory Iowa Powder Atomization Technologies, Inc. (IPAT) aims to become a leading domestic titanium powder producer allowing for a paradigm shift in the cost of titanium powders for metal injection molding (MIM) feedstock. Decreasing this cost will create vast opportunities for aerospace, military, biomedical, and consumer applications. Titanium and its fabrication by MIM can become one of the United States' most advanced processing technologies and help jump-start many corresponding manufacturing sectors, spurring job creation and economic growth throughout the United States. Titanium is viewed as one of the most strategic metals of our future. Its

118

Correlated spectral variability in brown dwarfs  

E-Print Network [OSTI]

Models of brown dwarf atmospheres suggest they exhibit complex physical behaviour. Observations have shown that they are indeed dynamic, displaying small photometric variations over timescales of hours. Here I report results of infrared (0.95-1.64 micron) spectrophotometric monitoring of four field L and T dwarfs spanning timescales of 0.1-5.5 hrs, the goal being to learn more about the physical nature of this variability. Spectra are analysed differentially with respect to a simultaneously observed reference source in order to remove Earth-atmospheric variations. The variability amplitude detected is typically 2-10%, depending on the source and wavelength. I analyse the data for correlated variations between spectral indices. This approach is more robust than single band or chisq analyses, because it does not assume an amplitude for the (often uncertain) noise level (although the significance test still assumes a shape for the noise power spectrum). Three of the four targets show significant evidence for correlated variability. Some of this can be associated with specific features including Fe, FeH, VO and KI, and there is good evidence for intrinsic variability in water and possibly also methan. Yet some of this variability covers a broader spectral range which would be consistent with dust opacity variations. The underlying common cause is plausibly localized temperature or composition fluctuations caused by convection. Looking at the high signal-to-noise ratio stacked spectra we see many previously identified spectral features of L and T dwarfs, such as KI, NaI, FeH, water and methane. In particular we may have detected methane absorption at 1.3-1.4 micron in the L5 dwarf SDSS 0539-0059.

C. A. L. Bailer-Jones

2007-11-28T23:59:59.000Z

119

Characterizations of WC-10Co nanocomposite powders and subsequently sinterhip sintered cemented carbide  

SciTech Connect (OSTI)

Ultrafine WC-Co cemented carbides, combining high hardness and high toughness, are expected to find broad applications. In this study, WC-10Co-0.4VC-0.4Cr{sub 3}C{sub 2} (wt.%) nanocomposite powders, whose average grain size was about 30 nm, were fabricated by spray pyrolysis-continuous reduction and carbonization technology. The as-prepared nanocomposite powders were characterized and analyzed by chemical methods, scanning electron microscopy (SEM), transmission electron microscopy (TEM), BET analysis and atomic force microscopy (AFM). Furthermore, 'sinterhip' was used in the sintering process, by which ultrafine WC-10Co cemented carbides with an average grain size of 240 nm were prepared. The material exhibited high Rockwell A hardness of HRA 92.8, Vickers hardness HV{sub 1} 1918, and transverse rapture strength (TRS) of 3780 MPa. The homogeneously dispersed grain growth inhibitors such as VC, Cr{sub 3}C{sub 2} in nanocomposite powder and the special nonmetal-metal nanocomposite structure of WC-10Co nanocomposite powder played very important roles in obtaining ultrafine WC-10Co cemented carbide with the desired properties and microstructure. There was an abundance of triple junctions in the ultrafine WC-10Co cemented carbide; these triple junctions endowed the sintered specimen with high mechanical properties.

Shi, X.L. [State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122Luoshi Road, Wuhan 430070 (China)]. E-mail: sxl071932@126.com; Shao, G.Q. [State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122Luoshi Road, Wuhan 430070 (China); Duan, X.L. [State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122Luoshi Road, Wuhan 430070 (China); Xiong, Z. [State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122Luoshi Road, Wuhan 430070 (China); Yang, H. [State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, 122Luoshi Road, Wuhan 430070 (China)

2006-12-15T23:59:59.000Z

120

Synthesis of nanophase W and WC powders from ammonium metatungstate  

SciTech Connect (OSTI)

Nanophase {alpha}-W powder has been synthesized by reductive decomposition of ammonium metatungstate (AMT) at low temperatures (< 600 C). The formation of {beta}-W, which is the usual product of low temperature reduction of tungsten oxides, is avoided. Thus, it has been possible to lower the carburization temperature of W to WC to about 575 C. Nanophase WC powder (< 10 nm grain size) is produced by the low temperature carburization of nanophase {alpha}-W powder.

Gao, L.; Kear, B.H. [Rutgers, The State Univ. of New Jersey, Piscataway, NJ (United States). Dept. of Ceramic Engineering

1996-06-01T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

Structures of FeII spin-crossover complexes from synchrotron powder-diffraction data  

Science Journals Connector (OSTI)

Using synchrotron powder-diffraction data and direct-space search techniques, crystal structures have been obtained at room temperature and 90 K for the compounds [Fe(teeX)6](BF4)2 (teeX is haloethyltetrazole, and X = I and Br), which both show a gradual, complete high-spin-to-low-spin transition according to molar magnetic susceptibility and 57Fe Mssbauer spectroscopy.

Dova, E.

2004-09-15T23:59:59.000Z

122

Forming gas treatment of lithium ion battery anode graphite powders  

DOE Patents [OSTI]

The invention provides a method of making a battery anode in which a quantity of graphite powder is provided. The temperature of the graphite powder is raised from a starting temperature to a first temperature between 1000 and 2000.degree. C. during a first heating period. The graphite powder is then cooled to a final temperature during a cool down period. The graphite powder is contacted with a forming gas during at least one of the first heating period and the cool down period. The forming gas includes H.sub.2 and an inert gas.

Contescu, Cristian Ion; Gallego, Nidia C; Howe, Jane Y; Meyer, III, Harry M; Payzant, Edward Andrew; Wood, III, David L; Yoon, Sang Young

2014-09-16T23:59:59.000Z

123

Space Groups: A primer on topics significant for powder diffraction  

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

Space Groups: A primer on topics significant for powder diffraction Presentation Goal Introduce symmetry concepts important for Rietveld analysis, particularly of inorganic...

124

COAL QUALITY AND GEOCHEMISTRY, POWDER RIVER BASIN, WYOMING AND MONTANA  

E-Print Network [OSTI]

in the Powder River Basin in Wyoming and Montana (fig. PQ-1) is considered to be "clean coal." For the location

125

Joining of parts via magnetic heating of metal aluminum powders  

DOE Patents [OSTI]

A method of joining at least two parts includes steps of dispersing a joining material comprising a multi-phase magnetic metal-aluminum powder at an interface between the at least two parts to be joined and applying an alternating magnetic field (AMF). The AMF has a magnetic field strength and frequency suitable for inducing magnetic hysteresis losses in the metal-aluminum powder and is applied for a period that raises temperature of the metal-aluminum powder to an exothermic transformation temperature. At the exothermic transformation temperature, the metal-aluminum powder melts and resolidifies as a metal aluminide solid having a non-magnetic configuration.

Baker, Ian

2013-05-21T23:59:59.000Z

126

Process for synthesizing compounds from elemental powders and product  

DOE Patents [OSTI]

A process for synthesizing intermetallic compounds from elemental powders. The elemental powders are initially combined in a ratio which approximates the stoichiometric composition of the intermetallic compound. The mixed powders are then formed into a compact which is heat treated at a controlled rate of heating such that an exothermic reaction between the elements is initiated. The heat treatment may be performed under controlled conditions ranging from a vacuum (pressureless sintering) to compression (hot pressing) to produce a desired densification of the intermetallic compound. In a preferred form of the invention, elemental powders of Fe and Al are combined to form aluminide compounds of Fe.sub.3 Al and FeAl.

Rabin, Barry H. (Idaho Falls, ID); Wright, Richard N. (Idaho Falls, ID)

1993-01-01T23:59:59.000Z

127

The Geographic Distribution, Genetic Structure and Cultural Management of Waitea circinata var. circinata, the Causal Agent of Brown Ring Patch  

E-Print Network [OSTI]

M. 2005. Brown ring patch: A new disease on bentgrass causedM. 2005. Brown ring patch: A new disease on bentgrass causedfor the control of brown ring patch in southern California,

CHEN, CHIMIN

2011-01-01T23:59:59.000Z

128

Brown-Atchison E C A Inc | Open Energy Information  

Open Energy Info (EERE)

Brown-Atchison E C A Inc Brown-Atchison E C A Inc Jump to: navigation, search Name Brown-Atchison E C A Inc Place Kansas Utility Id 2354 Utility Location Yes Ownership C NERC Location SPP NERC SPP Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Area Lighting Metered (AL-M) Lighting Area Lighting Unmetered (AL-U) Lighting General Service Large (GSL) Commercial General Service Small (Single Phase GSS-10) Commercial General Service Small (Three Phase GSS-30) Commercial Public Building Service- Single Phase (PB-10) Commercial Public Building Service- Three Phase (PB-30) Commercial

129

DOE - Office of Legacy Management -- Brown University - Metcalf Research  

Office of Legacy Management (LM)

Brown University - Metcalf Research Brown University - Metcalf Research Lab - RI 01 FUSRAP Considered Sites Site: Brown University (Metcalf Research Lab.) (RI.01 ) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: Providence , Rhode Island RI.01-1 Evaluation Year: 1987 RI.01-1 Site Operations: Research/Development on the preparation of pure halides of heavy metals, Bench Scale Process, and Sample & Analysis. RI.01-1 Site Disposition: Eliminated - Potential for residual radioactive contamination from small quantities of radioactive material is considered remote RI.01-1 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium, Thorium RI.01-1 Radiological Survey(s): None Indicated

130

2001 7: 1566-1577RNA J. T. Brown and A. W. Johnson  

E-Print Network [OSTI]

2001 7: 1566-1577RNA J. T. Brown and A. W. Johnson and phenocopies a ski mutant cellsenhances cells and phenocopies a ski mutant JUSTIN T. BROWN and ARLEN W. JOHNSON Department of Molecular Genetics

Johnson, Arlen

131

Understanding Brown Coal-Water Interactions to Reduce Carbon Dioxide Emissions  

Science Journals Connector (OSTI)

Victorian brown coal has a strong affinity for water. It exhibits high monolayer water capacities (MWC) and non-freezing water contents (NFW). In electricity generation, a large amount of brown coal is burnt (...

Leigh M. Clemow; W. Roy Jackson

2002-01-01T23:59:59.000Z

132

THERMAL CONDUCTIVITY OF POWDER INSULATIONS FOR CRYOGENIC STORAGE  

E-Print Network [OSTI]

THERMAL CONDUCTIVITY OF POWDER INSULATIONS FOR CRYOGENIC STORAGE VESSELS Y. S. Choi1 '3 , M. N), powder insulation, and foam insulation, are used in the cryogenic storage vessels. Among CP823, Advances in Cjyogenie Engineering: Transactions of the Cryogenic Engineering Conference - CEC, Vol. 51, edited by J. G

Chang, Ho-Myung

133

Bulk microstructure in a strained cohesive powder R. Andersson,1,  

E-Print Network [OSTI]

Neutron Scattering is able to characterise powders in terms of their density- density correlation function, 61.12.Ex, 81.05.Rm Keywords: Powder, Cohesion, Microstructure, Small-Angle Neutron Scattering, SESANS Resonance Imaging [5, 6]. Spin Echo Small Angle Neutron Scattering (SESANS) is using the penetrating ability

Luding, Stefan

134

Sinterable powders from laser driven reactions : final report  

E-Print Network [OSTI]

Extremely fine, uniform ceramic powders have been synthesized from Sil4 NH3 and C2H4 gas phase reactants that are heated by absorbing optical energy emitted from a C02 laser. Resulting Si, Si3N4 and SiC powders have been ...

Haggerty, John Scarseth

1981-01-01T23:59:59.000Z

135

Morphology and mechanism study for the synthesis of ZrB{sub 2}SiC powders by different methods  

SciTech Connect (OSTI)

ZrB{sub 2}SiC ceramics, whose SiC is generally incorporated into the system by mechanical mixing, are known to have better performance than monolithic ZrB{sub 2}. Therefore, synthesis of duplex ZrB{sub 2}SiC powders is beneficial for improving sinterability and mechanical properties of ZrB{sub 2}SiC composites. In the present work, ZrB{sub 2}SiC duplex powders with different morphologies were synthesized at 1550 C for 2 h using as-synthesized amorphous hydrous ZrO{sub 2}SiO{sub 2}. Both precipitation and solgel methods were used to prepare ZrO{sub 2}SiO{sub 2} precursors. ZrB{sub 2}SiC powder derived from precipitation method presented a rod-like morphology with smaller irregular particles adhering to them. And the morphology from solgel method was equiaxed shape with a very uniform distribution for principal components of Zr and Si. - Graphical abstract: SEM images of the ZrB2-SiC powders obtained by different methods. Display Omitted - Highlights: ZrB{sub 2}SiC powders with different morphologies were synthesized. Precipitation and solgel methods were used to prepare ZrO{sub 2}SiO{sub 2} precursors. Possible mechanisms of morphology formation were investigated. This work provided a potential way of morphology control for raw powders. The synthesized duplex powders achieved a uniform distribution of SiC in ZrB{sub 2}.

Zhao, Bin; Zhang, Yun [Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191 (China); Li, Junping [Aerospace Research Institute of Materials and Processing Technology, No. 1 Nan Da Hong Men Road, Fengtai District, Beijing 100076 (China); Yang, Biyun; Wang, Tingyu; Hu, Yongzhen; Sun, Dongfeng [Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191 (China); Li, Ruixing, E-mail: ruixingli@yahoo.com [Key Laboratory of Aerospace Materials and Performance (Ministry of Education), School of Materials Science and Engineering, Beihang University, Beijing 100191 (China); Yin, Shu [Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan); Feng, Zhihai [Aerospace Research Institute of Materials and Processing Technology, No. 1 Nan Da Hong Men Road, Fengtai District, Beijing 100076 (China); Sato, Tsugio [Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan)

2013-11-15T23:59:59.000Z

136

Toward Systems Biology in Brown Algae to Explore Acclimation and Adaptation to the Shore Environment  

E-Print Network [OSTI]

Toward Systems Biology in Brown Algae to Explore Acclimation and Adaptation to the Shore,2 Catherine Boyen,1,2 and Anne Siegel4,5 Abstract Brown algae belong to a phylogenetic lineage distantly siliculosus as a model organism for brown algae has represented a framework in which several omics techniques

Paris-Sud XI, Université de

137

Brown algae polyphenols prevent UVB-induced skin carcinogenesis in SKH-1 mice  

Science Journals Connector (OSTI)

...Assoc Cancer Res, Volume 47, 2006 Brown algae polyphenols prevent UVB-induced skin...showed that polyphenols extracted from brown algae have potent antioxidant activities. In...feeding and topical application of brown algae polyphenols on UVB radiation-induced...

Hyejeong Hwang; Tong Chen; Ronard G. Nines; Sarah M. Peschke; Hyeon-Cheol Shin; Gary D. Stoner

2006-04-15T23:59:59.000Z

138

Photoprotection in the brown alga Macrocystis pyrifera: Evolutionary implications Ernesto Garcia-Mendoza a,  

E-Print Network [OSTI]

Photoprotection in the brown alga Macrocystis pyrifera: Evolutionary implications Ernesto Garcia xxxx Keywords: Brown algae Evolution Macrocystis pyrifera Non-photochemical quenching Photoprotection-photochemical quenching, NPQ) in the brown alga Macrocystis pyrifera with that of Ficus sp., a higher plant to examine

Govindjee

139

Synthesis and Characterization of Lithium Ferrite LiFe 5 O 8 Powder by Sol Gel Method  

Science Journals Connector (OSTI)

Lithium ferrite LiFe 5 O 8 powder has been prepared by sol gel method. Lithium acetate and iron nitrate are mixed together in the ethanol solution. The mixture is then slow heated to obtain the precursor. The precursor materials are sent for characterization using Thermal Gravimetric Analyzer (TGA) X?Ray Diffraction (XRD) and Scanning Electron Microscope (SEM). Then the high energy ball milling method was applied to obtain the nano sized lithium ferrite.

N. S. A. Puad; A. F. M. Fadzil; R. Yusof; N. Kamarulzaman

2010-01-01T23:59:59.000Z

140

Edmund G. Brown, Jr. IMPERIAL VALLEY AND TEHACHAPI  

E-Print Network [OSTI]

Edmund G. Brown, Jr. Governor IMPERIAL VALLEY AND TEHACHAPI IMPLEMENTATION GROUPS of the Transmission to Access Renewable Resources in the Imperial Valley C­V. 1 Imperial Valley Study Group List, Heavy Power Flow Data C­V. 2 Imperial Valley Study Group, Appendix B, Transmission Planning

Note: This page contains sample records for the topic "brown powder obtained" 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

Edmund G. Brown, Jr. IMPERIAL VALLEY AND TEHACHAPI  

E-Print Network [OSTI]

Edmund G. Brown, Jr. Governor IMPERIAL VALLEY AND TEHACHAPI IMPLEMENTATION GROUPS/Agricultural/Water EndUse Energy Efficiency · Renewable Energy Technologies · Transportation Imperial Valley and Tehachapi Implementation Groups is the final report for the Imperial Valley and Tehachapi Implementation

142

Software Reuse in High Performance Computing Shirley Browne  

E-Print Network [OSTI]

Software Reuse in High Performance Computing Shirley Browne University of Tennessee 107 Ayres Hall high performance computing architectures in the form of distributed memorymul- tiprocessors have become of programming applications to run on these machines. Economical use of high performance computing and subsequent

Hawick, Ken

143

Software Reuse in High Performance Computing Shirley Browne  

E-Print Network [OSTI]

Software Reuse in High Performance Computing Shirley Browne University of Tennessee 107 Ayres Hall high performance computing architectures in the form of distributed memory mul­ tiprocessors have and cost of programming applications to run on these machines. Economical use of high performance computing

Dongarra, Jack

144

Edmund G. Brown, Jr. ENERGY-EFFICIENT COMMUNITY  

E-Print Network [OSTI]

's provided structure-specific building plans. The alternative energy efficiency approaches are; "EE Package" design approach incorporating advanced energy efficiency measures including alternative grades of wall andEdmund G. Brown, Jr. Governor ENERGY-EFFICIENT COMMUNITY DEVELOPMENT IN CALIFORNIA: CHULA VISTA

145

Ash Deposition Behavior of Upgraded Brown Coal and Bituminous Coal  

Science Journals Connector (OSTI)

Ash Deposition Behavior of Upgraded Brown Coal and Bituminous Coal ... Ash with a low melting point causes slagging and fouling problems in pulverized coal combustion boilers. ... The ash composition in coal and operational conditions in boilers such as heat load greatly affect the ash deposition behavior. ...

Katsuya Akiyama; Haeyang Pak; Toshiya Tada; Yasuaki Ueki; Ryo Yoshiie; Ichiro Naruse

2010-07-22T23:59:59.000Z

146

SSX Spheromak Merging Experiment Michael Brown, Swarthmore, PI  

E-Print Network [OSTI]

SSX Spheromak Merging Experiment Michael Brown, Swarthmore, PI Scientific Goals: We have three main gun technique to form single spheromaks and merged pairs of spheromaks to study novel magnetic configurations. A single spheromak can be injected into a flux conserver and stabilized with a simple dipole

Brown, Michael R.

147

Novel Dipole Trapped Spheromak Configuration M. R. Brown,1,  

E-Print Network [OSTI]

Novel Dipole Trapped Spheromak Configuration M. R. Brown,1, * C. D. Cothran,1 J. Fung,1 M. J. Schaffer,2 and E. Belova3 We report the observation and characterization of a spheromak formed in the Swarthmore Spheromak Experiment (SSX) and trapped in a simple dipole magnetic field. The spheromak is studied

Brown, Michael R.

148

The George R. Brown School of Engineering Katherine B. Ensor  

E-Print Network [OSTI]

310 Probability and Statistics · STAT 410 Introduction to Statistical Computing and Regression · 5252 Statistics The George R. Brown School of Engineering Chair Katherine B. Ensor Professors Bryan Degrees Offered: B.A., M.Stat., M.A., Ph.D. Course work in statistics acquaints students with the role

Richards-Kortum, Rebecca

149

The George R. Brown School of Engineering Katherine B. Ensor  

E-Print Network [OSTI]

Computation · STAT 300 Model Building · STAT 310 Probability and Statistics · STAT 410 Introduction227 Statistics The George R. Brown School of Engineering Chair Katherine B. Ensor Professors Bryan in statistics acquaints students with the role played in the modern world by probabilistic and statistical ideas

Richards-Kortum, Rebecca

150

The George R. Brown School of Engineering Katherine B. Ensor  

E-Print Network [OSTI]

Computation · STAT 300 Model Building · STAT 310 Probability and Statistics · STAT 410 Introduction245 Statistics The George R. Brown School of Engineering Chair Katherine B. Ensor Professors Bryan. Scott Baggett Peter Olofsson Degrees Offered: B.A., M.Stat., M.A., Ph.D. Course work in statistics

Richards-Kortum, Rebecca

151

Chemical Engineering The George R. Brown School of Engineering  

E-Print Network [OSTI]

environments. Courses in mathematics, chemistry, physics, and computational engineering provide the background/312 Physical Chemistry Any 2 of CHEM 212, CHEM 311, or CHEM 312 Chemical Engineering CENG 301 Chemical110 Chemical Engineering The George R. Brown School of Engineering Chair Kyriacos Zygourakis

Richards-Kortum, Rebecca

152

Web API Verification: Results and Challenges Brown University  

E-Print Network [OSTI]

Web API Verification: Results and Challenges Arjun Guha Brown University Providence, RI arjun Web applications use several APIs to build rich features. For example, the W3C Geolocation API that enables offline access, and the Google Maps API allows applications to embed customized maps. Some

Krishnamurthi, Shriram

153

Hydroliquefaction of Big Brown lignite in supercritical fluids  

E-Print Network [OSTI]

Big Brown lignite was liquefied in a fixed bed tube reactor. Three solvents were used in the liquefaction studies, toluene, cyclohexane and methanol. Two co-solvents, tetralin and water were used with toluene. The effects of the solvents and co...

Chen, Hui

2012-06-07T23:59:59.000Z

154

Astronomy Advisory Panel Richard Bower, Michael Brown, Anthony  

E-Print Network [OSTI]

Astronomy Advisory Panel Richard Bower, Michael Brown, Anthony Challinor, Chris Evans, Paul O to provide large contracts for UK industry. · High Performance Computing access ­ fund hardware upgrades via over 10 years Many UK science areas: dark energy/matter, galactic structure, transients, solar system

Crowther, Paul

155

E-Print Network 3.0 - aluminum powder mixtures Sample Search...  

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

4210: Manufacturing Processes and Engineering Summary: .S. Colton GIT 2009 17 12;Compacting Pressures for Various Metal Powders P Metal Pressure (MPa) Aluminum... Metal Powder...

156

Properties of very young brown dwarfs 50 Years of Brown Dwarfs, Ringberg castle, Oct. 21-24, 2012  

E-Print Network [OSTI]

: emission lines (H, CaII, UV excess, veiling, ...) Comerón et al. (2010) H CaII GY11, 30 Mjup, Oph Herczeg #12;Features of youth: emission lines (H) Using plenty of data (H emission and infrared flux excesses Mjup and older than ~300 Myr burn lithium. Smaller-mass brown dwarfs never burn lithium (see

Joergens, Viki

157

The School of Engineering (http://brown.edu/academics/engineering/) and the Institute for Brain Science at Brown University (http://brown.edu/academics/brainscience) invite applications for tenure-track faculty in  

E-Print Network [OSTI]

The School of Engineering (http://brown.edu/academics/engineering/) and the Institute for Brain the broader Brown Engineering and the large Brain Science community, and to identify collaborative opportunities with other faculty in the School of Engineering and/or among the other Brain Science faculty

Adams, Mark

158

Characterization of Cu{sub 6}Sn{sub 5} intermetallic powders produced by water atomization and powder heat treatment  

SciTech Connect (OSTI)

Since the Cu{sub 6}Sn{sub 5} intermetallic shows its importance in industrial applications, the Cu{sub 6}Sn{sub 5} intermetallic-containing powders, produced by a powder processing route with a high production rate, were characterized. The route consisted of water atomization of an alloy melt (Cu61 wt.% Sn) and subsequent heat treatment of the water-atomized powders. Characterization of the water-atomized powders and their heated forms was conducted by using X-ray diffraction, scanning electron microscopy and transmission electron microscopy. Fine water-atomized powder microstructures consisted of primary hexagonal ?-Cu{sub 6.25}Sn{sub 5} dendrites coexisting with interdendritic ?-Cu{sub 6.25}Sn{sub 5} + ?-Sn eutectic. Solidification of fine melt droplets was governed by surface nucleation and growth of the primary hexagonal ?-Cu{sub 6.25}Sn{sub 5} dendrites followed by ?-Cu{sub 6.25}Sn{sub 5} + ?-Sn eutectic solidification of the remnant liquid. In coarse melt droplets, nucleation and growth of primary ?-Cu{sub 3}Sn dendrites were followed by peritectic reaction (?-Cu{sub 3}Sn + liquid ? ?-Cu{sub 6.25}Sn{sub 5}) or direct crystallization of ?-Cu{sub 6.25}Sn{sub 5} phase from the undercooled melt. Finally, the ?-Cu{sub 6.25}Sn{sub 5} + ?-Sn eutectic solidification of the remnant liquid occurred. Heating of the water-atomized powders at different temperatures resulted in microstructural homogenization. The water-atomized powders with mixed phases were transformed to powders with single monoclinic ?-Cu{sub 6}Sn{sub 5} phase. - Highlights: The Cu{sub 6}Sn{sub 5} intermetallic powder production route was proposed. Single phase Cu{sub 6}Sn{sub 5} powders could be by water atomization and heating. Water-atomized CuSn powders contained mixed CuSn phases. Solidification and heat treatment of water-atomized CuSn powders are explained.

Tongsri, Ruangdaj, E-mail: ruangdt@mtec.or.th [Powder Metallurgy Research and Development Unit (PM-RDU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand); Yotkaew, Thanyaporn, E-mail: thanyy@mtec.or.th [Powder Metallurgy Research and Development Unit (PM-RDU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand); Krataitong, Rungtip, E-mail: rungtipk@mtec.or.th [Powder Metallurgy Research and Development Unit (PM-RDU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand); Wila, Pongsak, E-mail: pongsakw@mtec.or.th [Powder Metallurgy Research and Development Unit (PM-RDU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand); Sir-on, Autcharaporn, E-mail: autchars@mtec.or.th [Materials Characterization Research Unit (MCRU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand); Muthitamongkol, Pennapa, E-mail: pennapm@mtec.or.th [Materials Characterization Research Unit (MCRU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand); Tosangthum, Nattaya, E-mail: nattayt@mtec.or.th [Powder Metallurgy Research and Development Unit (PM-RDU), National Metal and Materials Technology Center, 114 Paholyothin, Klong 1, Klong Luang, Pathum Thani 12120 (Thailand)

2013-12-15T23:59:59.000Z

159

Environmentally stable reactive alloy powders and method of making same  

DOE Patents [OSTI]

Apparatus and method are disclosed for making powder from a metallic melt by atomizing the melt to form droplets and reacting the droplets downstream of the atomizing location with a reactive gas. The droplets are reacted with the gas at a temperature where a solidified exterior surface is formed thereon and where a protective refractory barrier layer (reaction layer) is formed whose penetration into the droplets is limited by the presence of the solidified surface so as to avoid selective reduction of key reactive alloys needed to achieve desired powder end use properties. The barrier layer protects the reactive powder particles from environmental constituents such as air and water in the liquid or vapor form during subsequent fabrication of the powder to end-use shapes and during use in the intended service environment. 7 figs.

Anderson, I.E.; Lograsso, B.K.; Terpstra, R.L.

1998-09-22T23:59:59.000Z

160

Process for synthesizing compounds from elemental powders and product  

DOE Patents [OSTI]

A process for synthesizing intermetallic compounds from elemental powders is described. The elemental powders are initially combined in a ratio which approximates the stoichiometric composition of the intermetallic compound. The mixed powders are then formed into a compact which is heat treated at a controlled rate of heating such that an exothermic reaction between the elements is initiated. The heat treatment may be performed under controlled conditions ranging from a vacuum (pressureless sintering) to compression (hot pressing) to produce a desired densification of the intermetallic compound. In a preferred form of the invention, elemental powders of Fe and Al are combined to form aluminide compounds of Fe[sub 3] Al and FeAl. 25 figures.

Rabin, B.H.; Wright, R.N.

1993-12-14T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

An improved Cr{sub 3}C{sub 2}-NICHROME powder  

SciTech Connect (OSTI)

The need for cost effective, wear resistance and corrosion resistant coatings is omnipresent in the oil and gas or petrochemically-related industries. In general, WC-Co powder mixtures are specified but, for the environments of elevated temperature and severe corrosion service, engineers prefer mixtures which contain an (X) amount of chromium carbide dispersed in a matrix of (1-X) NICHROME. Within this singular class of Cr{sub 3}-C{sub 2}-type coatings, a typical choice involves 75% Cr{sub 3}C{sub 2}-25% [80Ni-20Cr]. However, the actual NICHROME composition varies with different blends that range from 10-to-25%. Currently available powders also exhibit a wide variability because of the many different manufacturing methods that are applied. This paper maintains that, if the matrix alloy composition is properly varied and, if the associated chromium carbide content is correctly adjusted, improved results are obtained. For example, erosion resistance is comparable to that for a WC-Co mixture and a uniform microstructure reveals no apparent oxide stringers. Powder is prepared by sintering/crushing to proper size with low iron contents as the end result. Flame spraying has been successful using these spray guns: JET-KOTE II, HV-2000 or GATOR-GARD.

Hays, C. [Hays Metallurgical Engineering Corp., Pearland, TX (United States); Douglas, R.; Sokol, L.S. [Miller Thermal Inc., Baytown, TX (United States)

1994-12-31T23:59:59.000Z

162

Consolidation of aluminum 6061 powder by equal channel angular extrusion  

E-Print Network [OSTI]

, the powder is placed in a deformable mold ? often rubber, glass, or stainless steel. The container is evacuated and welded shut and then placed inside the HIP unit. A high- pressure gas or liquid surrounds the powder mold and applies pressure equally on all... oxide films and provide new surface area for welding. Next, the particles are resistance heated and pressure is applied for about 15 minutes. Applied temperatures are lower than HIP temperatures, and PAS uses much shorter consolidation times ? minutes...

Pearson, John Montgomery

1997-01-01T23:59:59.000Z

163

Neutron detectors comprising ultra-thin layers of boron powder  

SciTech Connect (OSTI)

High-efficiency neutron detector substrate assemblies comprising a first conductive substrate, wherein a first side of the substrate is in direct contact with a first layer of a powder material having a thickness of from about 50 nm to about 250 nm and comprising .sup.10boron, .sup.10boron carbide or combinations thereof, and wherein a conductive material is in proximity to the first layer of powder material; and processes of making said neutron detector substrate assemblies.

Wang, Zhehul; Morris, Christopher

2013-07-23T23:59:59.000Z

164

Laser:powder:substrate interactions in laser cladding and casting  

Science Journals Connector (OSTI)

Laser cladding and the recently developed laser casting technique are similar in their physical mechanisms. A transition from cladding to casting and vice versa can be achieved by proper control of the process parameters, both for preplaced and blown powder. In the present work, the preplaced powder technique is studied at a fundamental level. Its physical nature is responsible for a large operating window of dilution free cladding on the one hand and bond free casting on the other.

A.F.H. Kaplan; John Powell; Hans Gedda

2010-01-01T23:59:59.000Z

165

Compacting Plastic-Bonded Explosive Molding Powders to Dense Solids  

SciTech Connect (OSTI)

Dense solid high explosives are made by compacting plastic-bonded explosive molding powders with high pressures and temperatures for extended periods of time. The density is influenced by manufacturing processes of the powders, compaction temperature, the magnitude of compaction pressure, pressure duration, and number of repeated applications of pressure. The internal density variation of compacted explosives depends on method of compaction and the material being compacted.

B. Olinger

2005-04-15T23:59:59.000Z

166

Titanium Metal Powder Production by the Plasma Quench Process  

SciTech Connect (OSTI)

The goals of this project included the scale-up of the titanium hydride production process to a production rate of 50 kg/hr at a purity level of 99+%. This goal was to be achieved by incrementally increasing the production capability of a series of reactor systems. This methodic approach was designed to allow Idaho Titanium Technologies to systematically address the engineering issues associated with plasma system performance, and powder collection system design and performance. With quality powder available, actual fabrication with the titanium hydride was to be pursued. Finally, with a successful titanium production system in place, the production of titanium aluminide was to be pursued by the simultaneously injection of titanium and aluminum precursors into the reactor system. Some significant accomplishments of the project are: A unique and revolutionary torch/reactor capable of withstanding temperatures up to 5000 C with high thermal efficiency has been operated. The dissociation of titanium tetrachloride into titanium powder and HC1 has been demonstrated, and a one-megawatt reactor potentially capable of producing 100 pounds per hour has been built, but not yet operated at the powder level. The removal of residual subchlorides and adsorbed HC1 and the sintering of powder to form solid bodies have been demonstrated. The production system has been operated at production rates up to 40 pounds per hour. Subsequent to the end of the project, Idaho Titanium Technologies demonstrated that titanium hydride powder can indeed be sintered into solid titanium metal at 1500 C without sintering aids.

R. A. Cordes; A. Donaldson

2000-09-01T23:59:59.000Z

167

Active reagents from brown coal and hydrolysis lignin and their interaction with calcium phosphates  

SciTech Connect (OSTI)

A method has been developed for producing active reagents from brown coal and hydrolysis lignin by their oxidation with dilute nitric acid. The products obtained contain up to 30 and 46% respectively of humic acids with active functional groups. Reactions of oxidized and ammoniated coal with mono,- di-, and tricalcium phosphate have also been studied. The variation of the composition and yield of the reaction products with the ratio of the substances taken have been investigated. It has been found that the addition of oxidized coal to mono-, di-, and tricalcium phosphate raised the quantity of the water-soluble P/sub 2/O/sub 5/ froms, i.e., this hinders phosphorous fixation in the soil.

Rubinchik, G.F.; Adylkhodzhaeva, T.A.; Tadzhiev, A.T.

1985-09-01T23:59:59.000Z

168

Understanding Brown Carbon Aerosols and Their Role in Climate Change  

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

Brown Carbon Aerosols Brown Carbon Aerosols Tiny aerosol particles in the atmosphere are a possible cause of climate change. Among the many contributors to climate change are aerosols in the atmosphere. These tiny particles suspended in the air come from many sources, some natural and some man-made. Some aerosols are organic (containing carbon), while others are inorganic (such as sea salt and sulfates). Most aerosols reflect sunlight, and some also absorb it. Many of these nanoparticles have severe health effects in addition to climate effects. Human activities that produce aerosols include transportation, industry, and agriculture. Black carbon particles (a component of soot) originating from combustion processes have been known for some time to absorb sunlight and warm the

169

GD 552: a cataclysmic variable with a brown dwarf companion?  

E-Print Network [OSTI]

GD 552 is a high proper motion star with the strong, double-peaked emission lines characteristic of the dwarf nova class of cataclysmic variable star, and yet no outburst has been detected during the past 12 years of monitoring. We present spectroscopy taken with the aim of detecting emission from the mass donor in this system. We fail to do so at a level which allows us to rule out the presence of a near-main-sequence star donor. Given GD 552's orbital period of 103 minutes, this suggests that it is either a system that has evolved through the ~80-minute orbital period minimum of cataclysmic variable stars and now has a brown dwarf mass donor, or that has formed with a brown dwarf donor in the first place. This model explains the low observed orbital velocity of the white dwarf and GD 552's low luminosity. It is also consistent with the absence of outbursts from the system.

E. Unda-Sanzana; T. R. Marsh; B. T. Gansicke; P. F. L. Maxted; L. Morales-Rueda; V. S. Dhillon; T. D. Thoroughgood; E. Tremou; C. A. Watson; R. Hinojosa-Goni

2008-06-30T23:59:59.000Z

170

A brown dwarf mass donor in an accreting binary  

E-Print Network [OSTI]

A long standing and unverified prediction of binary star evolution theory is the existence of a population of white dwarfs accreting from sub-stellar donor stars. Such systems ought to be common, but the difficulty of finding them, combined with the challenge of detecting the donor against the light from accretion means that no donor star to date has a measured mass below the hydrogen burning limit. Here we apply a technique which allows us to reliably measure the mass of the unseen donor star in eclipsing systems. We are able to identify a brown dwarf donor star, with a mass of 0.052+/-0.002 Msun. The relatively high mass of the donor star for its orbital period suggests that current evolutionary models may underestimate the radii of brown dwarfs.

S. P. Littlefair; V. S. Dhillon; T. R. Marsh; Boris T. Gaensicke; John Southworth; C. A. Watson

2006-12-08T23:59:59.000Z

171

AA Dor - An Eclipsing sdOB - Brown Dwarf Binary  

E-Print Network [OSTI]

AA Dor is an eclipsing, close, post common-envelope binary consisting of a sdOB primary star and an unseen secondary with an extraordinary small mass - formally a brown dwarf. The brown dwarf may have been a former planet which survived a common envelope phase and has even gained mass. A recent determination of the components' masses from results of NLTE spectral analysis and subsequent comparison to evolutionary tracks shows a discrepancy to masses derived from radial-velocity and the eclipse curves. Phase-resolved high-resolution and high-SN spectroscopy was carried out in order to investigate on this problem. We present results of a NLTE spectral analysis of the primary, an analysis of its orbital parameters, and discuss possible evolutionary scenarios.

Thomas Rauch

2003-11-25T23:59:59.000Z

172

Observations on the biology of the smoky brown cockroach  

E-Print Network [OSTI]

, sheetrock, unfinished plywood, tar paper, painted wood, sheetmetal, and vinyl asbestos tile. Smoky brown cockroaches were found throughout southeast, central, and east Texas vdth the population decreasing south of Corpus Christi, west of San Antonio..., vegetables, mixtures, etc, Materials tested for pre- , I ferred resting surfaces were sheetmetal, sheetrock, concrete, tar paper, painted wbi)d, 5 unfinished wood?and vinyl asbestos tile. Laboratory Test Procedures Three phases of tests were conducted...

Clark, Jerry Lee

2012-06-07T23:59:59.000Z

173

ATMOSPHERIC DYNAMICS OF BROWN DWARFS AND DIRECTLY IMAGED GIANT PLANETS  

SciTech Connect (OSTI)

A variety of observations provide evidence for vigorous motion in the atmospheres of brown dwarfs and directly imaged giant planets. Motivated by these observations, we examine the dynamical regime of the circulation in the atmospheres and interiors of these objects. Brown dwarfs rotate rapidly, and for plausible wind speeds, the flow at large scales will be rotationally dominated. We present three-dimensional, global, numerical simulations of convection in the interior, which demonstrate that at large scales, the convection aligns in the direction parallel to the rotation axis. Convection occurs more efficiently at high latitudes than low latitudes, leading to systematic equator-to-pole temperature differences that may reach ?1 K near the top of the convection zone. The interaction of convection with the overlying, stably stratified atmosphere will generate a wealth of atmospheric waves, and we argue that, as in the stratospheres of planets in the solar system, the interaction of these waves with the mean flow will cause a significant atmospheric circulation at regional to global scales. At large scales, this should consist of stratified turbulence (possibly organizing into coherent structures such as vortices and jets) and an accompanying overturning circulation. We present an approximate analytic theory of this circulation, which predicts characteristic horizontal temperature variations of several to ?50 K, horizontal wind speeds of ?10-300 m s{sup 1}, and vertical velocities that advect air over a scale height in ?10{sup 5}-10{sup 6} s. This vertical mixing may help to explain the chemical disequilibrium observed on some brown dwarfs. Moreover, the implied large-scale organization of temperature perturbations and vertical velocities suggests that near the L/T transition, patchy clouds can form near the photosphere, helping to explain recent observations of brown-dwarf variability in the near-IR.

Showman, Adam P. [Department of Planetary Sciences and Lunar and Planetary Laboratory, The University of Arizona, 1629 University Boulevard, Tucson, AZ 85721 (United States); Kaspi, Yohai, E-mail: showman@lpl.arizona.edu [Center for Planetary Science, Weizmann Institute of Science, Rehovot (Israel)

2013-10-20T23:59:59.000Z

174

Powder Diffraction with Proteins Jon Wright, Irene Margiolaki, Andy Fitch and Yves Watier  

E-Print Network [OSTI]

Powder Diffraction with Proteins Jon Wright, Irene Margiolaki, Andy Fitch and Yves Watier #12 C 3Wright, Protein Powders #12;Wright, Protein Powders 4 Structure representations #12;Wright method to "solve" phase problem · What do we see in electron density maps? 6Wright, Protein Powders #12

Magee, Joseph W.

175

On-site field tests for study of low-rank western coal fly ash. Technical summary report, field test No. 3. Big Brown Station electrostatic precipitator  

SciTech Connect (OSTI)

This report describes the results of field and laboratory studies of combined NH/sub 3/ and SO/sub 3/ conditioning at the Big Brown Station of Texas Utilities Generating Company. This unusual combination of conditioning agents is used routinely at the Big Brown Station in order to improve the performance of the cold-side electrostatic precipitators. The primary objectives of this field study were to evaluate the performance of one of the Big Brown precipitators, and to obtain data on the concentration, composition, and size distribution of the fly ash, as well as the composition of the flue gas and the overall and fractional collection efficiencies of the precipitator. The laboratory studies of the Big Brown fly ash were intended to further characterize the ash both physically and chemically, and to study the attenuation of the electrical resistivity of the ash associated with the surface film produced by the dual conditioning process and by the use of SO/sub 3/ conditioning alone. 6 references, 22 figures, 9 tables.

Dahlin, R. S.; Bickelhaupt, R. E.; Marchant, Jr., G. H.; Gooch, J. P.

1984-02-01T23:59:59.000Z

176

Direct laser powder deposition - 'State of the Art'  

SciTech Connect (OSTI)

Recent developments on Laser Cladding and Rapid Prototyping have led to Solid Freeform Fabrication (SFF) technologies that produce net shape metal components by laser fusion of metal powder alloys. These processes are known by various names such as Directed Light Fabrication (DLF{trademark}), Laser Engineered Net Shaping (LENS{trademark}), and Direct Metal Deposition (DMD{trademark}) to name a few. These types of processes can be referred to as direct laser powder deposition (DLPD). DLPD involves fusing metal alloy powders in the focal point of a laser (or lasers) that is (are) being controlled by Computer Aided Design-Computer Aided Manufacturing (CAD-CAM) technology. DLPD technology has the capability to produce fully dense components with little need for subsequent processing. Research and development of DLPD is being conducted throughout the world. The list of facilities conducting work in this area continues to grow (over 25 identified in North America alone). Selective Laser Sintering (SLS{trademark}) is another type of SFF technology based on laser fusion of powder. The SLS technology was developed as a rapid prototyping technique, whereas DLPD is an extension of the laser cladding technology. Most of the effort in SLS has been directed towards plastics and ceramics. In SLS, the powder is pre-placed by rolling out a layer for each laser pass. The computer control selects where in the layer the powder will be sintered by the laser. Sequential layers are sintered similarly forming a shape. In DLPD, powder is fed directly into a molten metal pool formed at the focal point of the laser where it is melted. As the laser moves on the material it rapidly resolidifies to form a shape. This talk elaborates on the state of these developments.

Sears, J.W.

1999-11-01T23:59:59.000Z

177

Method for producing microcomposite powders using a soap solution  

DOE Patents [OSTI]

A method for producing microcomposite powders for use in superconducting and non-superconducting applications. A particular method to produce microcomposite powders for use in superconducting applications includes the steps of: (a) preparing a solution including ammonium soap; (b) dissolving a preselected amount of a soluble metallic such as silver nitrate in the solution including ammonium soap to form a first solution; (c) adding a primary phase material such as a single phase YBC superconducting material in particle form to the first solution; (d) preparing a second solution formed from a mixture of a weak acid and an alkyl-mono-ether; (e) adding the second solution to the first solution to form a resultant mixture; (f) allowing the resultant mixture to set until the resultant mixture begins to cloud and thicken into a gel precipitating around individual particles of the primary phase material; (g) thereafter drying the resultant mixture to form a YBC superconducting material/silver nitrate precursor powder; and (h) calcining the YBC superconducting material/silver nitrate precursor powder to convert the silver nitrate to silver and thereby form a YBC/silver microcomposite powder wherein the silver is substantially uniformly dispersed in the matrix of the YBC material.

Maginnis, Michael A. (Coker, AL); Robinson, David A. (Mobile, AL)

1996-01-01T23:59:59.000Z

178

Microstructural Development in Al-Si Powder During Rapid Solidification  

SciTech Connect (OSTI)

Powder metallurgy has become an increasingly important form of metal processing because of its ability to produce materials with superior mechanical properties. These properties are due in part to the unique and often desirable microstructures which arise as a result of the extreme levels of undercooling achieved, especially in the finest size powder, and the subsequent rapid solidification which occurs. A better understanding of the fundamental processes of nucleation and growth is required to further exploit the potential of rapid solidification processing. Aluminum-silicon, an alloy of significant industrial importance, was chosen as a model for simple eutectic systems displaying an unfaceted/faceted interface and skewed coupled eutectic growth zone, Al-Si powder produced by high pressure gas atomization was studied to determine the relationship between microstructure and alloy composition as a function of powder size and atomization gas. Critical experimental measurements of hypereutectic (Si-rich) compositions were used to determine undercooling and interface velocity, based on the theoretical models which are available. Solidification conditions were analyzed as a function of particle diameter and distance from nucleation site. A revised microstructural map is proposed which allows the prediction of particle morphology based on temperature and composition. It is hoped that this work, by providing enhanced understanding of the processes which govern the development of the solidification morphology of gas atomized powder, will eventually allow for better control of processing conditions so that particle microstructures can be optimized for specific applications.

Amber Lynn Genau

2004-12-19T23:59:59.000Z

179

Kinetics of Browning, Phenolics, and 5-Hydroxymethylfurfural in Commercial Sparkling Wines  

Science Journals Connector (OSTI)

Kinetics of Browning, Phenolics, and 5-Hydroxymethylfurfural in Commercial Sparkling Wines ... We analyzed the degree of browning (absorbance at 420 nm), the phenolics, and the 5-hydroxymethylfurfural (5-HMF) content in six sparkling wines series kept at three temperatures (4, 16, and 20 C) for over 2 years. ... Meanwhile, 5-hydroxymethylfurfural (5-HMF), an indicator of the progress of Maillard browning, has been used as a quality marker for industrial manufactured foods. ...

A. Serra-Cayuela; M. Jourdes; M. Riu-Aumatell; S. Buxaderas; P.-L. Teissedre; E. Lpez-Tamames

2014-01-21T23:59:59.000Z

180

Mechanochemical synthesis of tungsten carbide nano particles by using WO{sub 3}/Zn/C powder mixture  

SciTech Connect (OSTI)

Graphical abstract: Display Omitted Highlights: ? Nano particles of WC are synthesized by mechanochemical process. ? Zn was used to reduce WO{sub 3}. ? By removing ZnO from the milling products with an acid leaching, WC will be the final products. ? XRD results showed that the reduction reactions were completed after 36 h. ? TEM and SEM images showed that the morphology of produced powder is nearly spherical like. -- Abstract: In this research we introduce a new, facile, and economical system for fabrication of tungsten carbide (WC) nano particle powder. In this system WO{sub 3}, Zn, and C have been ball-milled for several hours, which led to the synthesis of tungsten carbide nano particles. The synthesized WC can successfully be separated from the ball-milled product by subjecting the product powder to diluted HCl for removing ZnO and obtaining WC. X-ray diffraction (XRD) analysis indicates that the reduction of WO{sub 3} will be completed gradually by increasing milling time up to 36 h. Scanning electron microscope (SEM), and transmission electron microscope (TEM) images show that after 36 h of milling the particle size of the fabricated powder is nano metric (about 20 nm). Results have shown that this system can surmount some main problems occurred in previous similar WC synthesizing systems. For example carbothermic reduction reactions, which lead to the synthesis of W{sub 2}C instead of WC, would not be activated because in this system reactions take place gradually.

Hoseinpur, Arman, E-mail: arman.hoseinpur@stu-mail.um.ac.ir [Department of Materials and Metallurgical Engineering, Ferdowsi University of Mashhad, Mashhad 91775-1111, Islamic Republic of Iran (Iran, Islamic Republic of)] [Department of Materials and Metallurgical Engineering, Ferdowsi University of Mashhad, Mashhad 91775-1111, Islamic Republic of Iran (Iran, Islamic Republic of); Vahdati Khaki, Jalil; Marashi, Maryam Sadat [Department of Materials and Metallurgical Engineering, Ferdowsi University of Mashhad, Mashhad 91775-1111, Islamic Republic of Iran (Iran, Islamic Republic of)] [Department of Materials and Metallurgical Engineering, Ferdowsi University of Mashhad, Mashhad 91775-1111, Islamic Republic of Iran (Iran, Islamic Republic of)

2013-02-15T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

Tap Density Equations of Granular Powders Based on the Rate Process Theory and the Free Volume Concept  

E-Print Network [OSTI]

Tap density of a granular powder is often linked to the flowability via Carr Index that measures how tight a powder can be packed, under an assumption that more easily packed powders usually flow poorly. Understanding how particles are packed is important for revealing why a powder flows better than others. There are two types of empirical equations that were proposed to fit the experimental data of packing fractions vs. numbers of taps in literature: The inverse logarithmic and the stretched exponential. Using the rate process theory and the free volume concept, we obtain the tap density equations and they can be reducible to the two empirical equations currently widely used in literature. Our equations could potentially fit experimental data better with an additional adjustable parameter. The tapping amplitude and frequency, the weight of the granular materials, and the environment temperature are grouped into one parameter that weighs the pace of packing process. The current results, in conjunction with our previous findings, may imply that both dry(granular)and wet(colloidal and polymeric) particle systems are governed by the same physical mechanisms in term of the role of the free volume and how particles behave (a rate controlled process).

Tian Hao

2014-09-05T23:59:59.000Z

182

Treatment of biomass to obtain ethanol  

DOE Patents [OSTI]

Ethanol was produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.

Dunson, Jr., James B. (Newark, DE); Elander, Richard T. (Evergreen, CO); Tucker, III, Melvin P. (Lakewood, CO); Hennessey, Susan Marie (Avondale, PA)

2011-08-16T23:59:59.000Z

183

E-Print Network 3.0 - accreting brown dwarfs Sample Search Results  

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

<< < 1 2 3 4 5 > >> 1 The University of Western Ontario DEPARTMENT OF PHYSICS AND ASTRONOMY Summary: : Accretion and dusty disks" ABSTRACT Young brown dwarfs appear to share...

184

STATE OF CALIFORNIA --NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

of major energy trends and issues facing California's electricity, natural gas, and transportation fuelSTATE OF CALIFORNIA -- NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY

185

E-Print Network 3.0 - asian brown cloud Sample Search Results  

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

for the future of Asian American Studies. Authors Jeanne Batallones Darren Lee Brown Jeffery Paul Chan Laureen... At 40: At40: Asian American Studies @ San Francisco State...

186

Production of catalyst supports for coking and sorbents from brown coal  

Science Journals Connector (OSTI)

Thermal activation of brown coal for production of porous carbon materials in a set-up with fluidized oxidation catalyst has been studied.

M. L. Shchipko; V. B. Fenelonov; E. V. Shevtsov

1994-11-01T23:59:59.000Z

187

Capabilities of the POWDER Instrument | ORNL Neutron Sciences  

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

Capabilities of the POWDER Instrument Capabilities of the POWDER Instrument The scientific areas that may benefit from using the HB-2A instrument are condensed matter physics, chemistry, geology, and material science. Due to its versatility, this instrument can be employed for a large variety of experiments, but it is particularly adapted for determining crystal structures with relatively large unit cells (dmax ≈ 28 Å), as well as complex magnetic structures. Furthermore, studies of phase transitions, thermal expansion, quantitative analysis, and ab-initio structure solution from powder data can be undertaken. A full range of ancillary sample environments can be used to provide a complete control of thermodynamic variables such as temperature, magnetic field, and pressure. The following examples highlight some of the basic features and

188

Microsoft Word - Powder River Basin 1_6_06.doc  

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

Economics of Powder River Basin Economics of Powder River Basin Coalbed Methane Development Prepared for: U.S. Department of Energy Prepared by: Gregory C. Bank Vello A. Kuuskraa vkuuskraa@adv-res.com Advanced Resources International, Inc. January 2006 Disclaimer This material was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States nor the United States Department of Energy, nor any of their employees, makes any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. The Economics of Powder River Basin Coalbed Methane Development

189

Magnetic Structure Analysis from Neutron Powder Diffraction Data Using GSAS  

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

Magnetic Structure Analysis from Neutron Powder Diffraction Data Using GSAS Magnetic Structure Analysis from Neutron Powder Diffraction Data Using GSAS This set of web pages provides reference information from the Magnetic Structure Analysis from Neutron Powder Diffraction Data Using GSAS workshop presented at the 2006 American Conference on Neutron Scattering held in St. Charles, IL, June 18-22, 2006. Workshop Schedule: 9:00-9:05 am: Introduction (B.H. Toby) 9:05-9:50 am: History, Color symmetry & Shubnikov space groups (B. Chakoumous) Lecture notes: History and Color symmetry & Shubnikov space groups 9:50-10:20 am: Magnetic extinctions classes & common magnetic structure types (R.B. Von Dreele) Lecture Notes Break 10:50-11:45 am: Overview of representational analysis & FullProf implementation (L.C. Chapon) Lecture Notes and Accompanying files

190

Method and apparatus for the production of metal oxide powder  

DOE Patents [OSTI]

The present invention provides a method for preparing metal oxide powder. A first solution, which is substantially organic, is prepared. A second solution, which is an aqueous solution substantially immiscible in the first solution, is prepared and delivered as drops to the first solution. The drops of the second solution are atomized by a pulsed electric field forming micro-drops of the second solution. Reagents in the first solution diffuse into and react with reactants in the micro-drops of the second solution forming metal hydroxide or oxalate particles. The metal hydroxide or metal oxalate particles are then recovered and dried to produce the metal oxide powder. An apparatus for preparing a metal oxide powder is also disclosed.

Harris, Michael T. (Knoxville, TN); Scott, Timothy C. (Knoxville, TN); Byers, Charles H. (Oak Ridge, TN)

1993-01-01T23:59:59.000Z

191

Method and apparatus for the production of metal oxide powder  

DOE Patents [OSTI]

The present invention provides a method for preparing metal oxide powder. A first solution, which is substantially organic, is prepared. A second solution, which is an aqueous solution substantially immiscible in the first solution, is prepared and delivered as drops to the first solution. The drops of the second solution are atomized by a pulsed electric field forming micro-drops of the second solution. Reagents in the first solution diffuse into and react with reactants in the micro-drops of the second solution forming metal hydroxide or oxalate particles. The metal hydroxide or metal oxalate particles are then recovered and dried to produce the metal oxide powder. An apparatus for preparing a metal oxide powder is also disclosed.

Harris, Michael T. (Knoxville, TN); Scott, Timothy C. (Knoxville, TN); Byers, Charles H. (Oak Ridge, TN)

1992-01-01T23:59:59.000Z

192

Method and apparatus for the production of metal oxide powder  

DOE Patents [OSTI]

The present invention provides a method for preparing metal oxide powder. A first solution, which is substantially organic, is prepared. A second solution, which is an aqueous solution substantially immiscible in the first solution, is prepared and delivered as drops to the first solution. The drops of the second solution are atomized by a pulsed electric field forming micro-drops of the second solution. Reagents in the first solution diffuse into and react with reactants in the micro-drops of the second solution forming metal hydroxide or oxalate particles. The metal hydroxide or metal oxalate particles are then recovered and dried to produce the metal oxide powder. An apparatus for preparing a metal oxide powder is also disclosed. 2 figs.

Harris, M.T.; Scott, T.C.; Byers, C.H.

1992-06-16T23:59:59.000Z

193

Powder synthesis and consolidation of thallium based high temperature superconductors  

SciTech Connect (OSTI)

Objective is to provide research samples of the Tl-based powders prepared by Rockwell's spray calciner. Target compositions were set at 1.1 Tl, 1 Ba, 1 Ca, 1.5 Cu and 1.1 Tl, 1.12 Ba, 1 Ca, 1.88 Cu. Three calciner runs were made. The Nomex bags were replaced with Gore-Tex bags. The system was operated continuously for 24 h, producing 1.7 kg HTSC powder. Problems with CO[sub 2], Tl volatility during sintering, etc., are discussed.

Gay, R.L. (Rockwell International Corp., Canoga Park, CA (United States). Rocketdyne Div.)

1990-06-23T23:59:59.000Z

194

Process for preparing fine grain titanium carbide powder  

DOE Patents [OSTI]

A method for preparing finely divided titanium carbide powder in which an organotitanate is reacted with a carbon precursor polymer to provide an admixture of the titanium and the polymer at a molecular-level due to a crosslinking reaction between the organotitanate and the polymer. The resulting gel is dried, pyrolyzed to drive off volatile components and provide carbon. The resulting solids are then heated at an elevated temperature to convert the titanium and carbon to high-purity titanium carbide powder in a submicron size range.

Janey, Mark A. (Concord, TN)

1986-01-01T23:59:59.000Z

195

The First Detailed Look at a Brown Dwarf Disk  

E-Print Network [OSTI]

The combination of mid-infrared and recent submm/mm measurements allows us to set up the first comprehensive spectral energy distribution (SED) of the circumstellar material around a young Brown Dwarf. Simple arguments suggest that the dust is distributed in the form of a disk. We compare basic models to explore the disk parameters. The modeling shows that a flat disk geometry fits well the observations. A flared disk explains the SED only if it has a puffed-up inner rim and an inner gap much larger than the dust sublimation radius. Similarities and differences with disks around T Tauri stars are discussed.

I. Pascucci; D. Apai; Th. Henning; C. P. Dullemond

2003-05-12T23:59:59.000Z

196

Mechanical Properties of a Metal Powder-Loaded Polyurethane Foam  

SciTech Connect (OSTI)

Quasi-static compression tests have been performed on polyurethane foam specimens. The modulus of the foam exhibited a power-law dependence with respect to density of the form: E* {proportional_to} {rho}*{sup n}, where n = 1.7. The modulus data is well described by a simple geometric model (attributed to the work of Gibson and Ashby) for closed-cell foam in which the stiffness of the foam is governed by the flexure of the cell struts and cell walls. The compressive strength of the foam is also found to follow a power-law behavior with respect to foam density. In this instance, Euler buckling is used to rationalize the density dependence. The modulus of the polyurethane foam was modified by addition of a gas atomized, spherical aluminum powder. Additions of 30 and 50 weight percent of the powder significantly increased the foam modulus. However, there were only slight increases in modulus with 5 and 10 weight percent additions of the metal powder. Strength was also slightly increased at high loading fractions of powder. This increase in modulus and strength could be predicted by combining the above geometric model with a well-known model describing the effect on modulus of a rigid dispersoid in a compliant matrix.

C. L. Neuschwanger; L. L. Whinnery; S. H. Goods

1999-04-01T23:59:59.000Z

197

Explosively driven low-density foams and powders  

DOE Patents [OSTI]

Hollow RX-08HD cylindrical charges were loaded with boron and PTFE, in the form of low-bulk density powders or powders dispersed in a rigid foam matrix. Each charge was initiated by a Comp B booster at one end, producing a detonation wave propagating down the length of the cylinder, crushing the foam or bulk powder and collapsing the void spaces. The PdV work done in crushing the material heated it to high temperatures, expelling it in a high velocity fluid jet. In the case of boron particles supported in foam, framing camera photos, temperature measurements, and aluminum witness plates suggest that the boron was completely vaporized by the crush wave and that the boron vapor turbulently mixed with and burned in the surrounding air. In the case of PTFE powder, X-ray photoelectron spectroscopy of residues recovered from fragments of a granite target slab suggest that heating was sufficient to dissociate the PTFE to carbon vapor and molecular fluorine which reacted with the quartz and aluminum silicates in the granite to form aluminum oxide and mineral fluoride compounds.

Viecelli, James A. (Orinda, CA); Wood, Lowell L. (Simi Valley, CA); Ishikawa, Muriel Y. (Livermore, CA); Nuckolls, John H. (Danville, CA); Pagoria, Phillip F. (Livermore, CA)

2010-05-04T23:59:59.000Z

198

Thermite powder ignition by localized microwaves Yehuda Meir, Eli Jerby  

E-Print Network [OSTI]

, there is a considerable motivation to develop practical means to ignite pure thermites. Laser beams were found effectiveThermite powder ignition by localized microwaves Yehuda Meir, Eli Jerby Faculty of Engineering 2012 Keywords: Thermite Microwave heating Hotspots Thermal runaway Ignition a b s t r a c t This paper

Jerby, Eli

199

Thermite powder ignition by localized microwaves Yehuda Meir, Eli Jerby  

E-Print Network [OSTI]

, there is a considerable motivation to develop practical means to ignite pure thermites. Laser beams were found effectiveThermite powder ignition by localized microwaves Yehuda Meir, Eli Jerby Faculty of Engineering Keywords: Thermite Microwave heating Hotspots Thermal runaway Ignition a b s t r a c t This paper presents

Jerby, Eli

200

Vibration of spinning discs and powder formation in centrifugal atomization  

Science Journals Connector (OSTI)

...research-article Research articles 1006 121 117 Vibration of spinning discs and powder formation...liquid film. In this paper, the vibration of an atomizing disc excited by...melt is analysed and the role of vibration in the disintegration of the melt...

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

February 2013 EA Report Brown Bagger 1 The Impact of Substance  

E-Print Network [OSTI]

. Young people in particular don't under- stand the danger in abusing OTC or prescription drugsFebruary 2013 EA Report Brown Bagger 1 Brown Bagger The Impact of Substance Abuse on the Workplace someone you care about is abusing a drug, it is difficult to watch this individual destroy relationships

Oliver, Douglas L.

202

Anaerobic Co-digestion of Brown Water and Food Waste for Energy Recovery  

E-Print Network [OSTI]

LIM J.W. Anaerobic Co-digestion of Brown Water and Food Waste for Energy Recovery Jun Wei LIM waste (FW) and their mixture (MW) in batch digesters was evaluated under mesophilic conditions. BW waste. Keywords Anaerobic digestion; food waste; brown water; biogas; co-digestion INTRODUCTION

Paris-Sud XI, Université de

203

OHIO ETHICS COMMISSION Sarah M. Brown, Chairman 8 East Long Street, 10th  

E-Print Network [OSTI]

OHIO ETHICS COMMISSION Sarah M. Brown, Chairman 8 East Long Street, 10th Floor Robert Browning, Executive Director Web site: www.ethics.ohio.gov Serving Ohio Since 1974 RESTRICTIONS ON NEPOTISM OR HIRING FAMILY MEMBERS: Ethics Commission Information Sheet # 1 I. Introduction The Ohio Ethics Law and related

Moore, Paul A.

204

Optical Flow Estimation using Laplacian Mesh Energy Wenbin Li Darren Cosker Matthew Brown Rui Tang  

E-Print Network [OSTI]

Optical Flow Estimation using Laplacian Mesh Energy Wenbin Li Darren Cosker Matthew Brown Rui Tang.p.cosker,m.brown,r.tang}@bath.ac.uk Abstract In this paper we present a novel non-rigid optical flow algorithm for dense image correspondence and non-rigid registration. The algorithm uses a unique Laplacian Mesh Energy term to encourage local

Martin, Ralph R.

205

Capping the Brown Energy Consumption of Internet Services at Low Cost  

E-Print Network [OSTI]

energy" (produced via carbon-intensive means) relative to renewable or "green" energy. This paper their brown energy consumption and lever- age green energy, while respecting their SLAs and minimizing energy-intensive energy as "brown" energy, in contrast with "green" or renewable energy.) We argue that placing caps

206

HOW TO OBTAIN EIA PRODUCTS AND SERVICES  

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

HOW TO OBTAIN EIA PRODUCTS AND SERVICES HOW TO OBTAIN EIA PRODUCTS AND SERVICES For further information on any or the following services, or for answers to energy information questions, please contact ElA's National Energy Information Outer National Energy Infomtaiion Center (NEIC) (202) 586-8800 Energy Information Administration (202) 586-0727 (fax) l-orrtslal Ituilding, Roam 1F-048 TTY: (202) 586-1ISI Washington. DC 20585 E-mail: infocir@eia.doc.gov Electronic Products and Services ElA's Internet Site Services offer nearly all E1A publications. Users can view and download selected pages or entire reports, search Tor information, download LIA tlaia and analysis applications, and find out about new KIA information products aitd sen-ices, World Wide Web: http://www.eia.doe.KOV Gopher: go ph« r ://go ph er .eia .d oe. gov

207

Dr. Benjamin L. Brown | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Benjamin L. Brown Benjamin L. Brown Deputy Director for Science Programs Deputy Director Home Mission & Functions Deputy Director Biography Organization Staff Presentations & Testimony Federal Advisory Committees Committees of Visitors Contact Information Deputy Director for Science Programs U.S. Department of Energy SC-2/Forrestal Building 1000 Independence Ave., SW Washington, DC 20585 P: (202) 586-5430 F: (202) 586-4120 E: sc.science@science.doe.gov U.S. Department of Energy SC-2/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-5316 F: (301) 903-7780 E: sc.science@science.doe.gov Staff Dr. Benjamin L. Brown Print Text Size: A A A RSS Feeds FeedbackShare Page Dr. Benjamin L. Brown Dr. Benjamin L. Brown Senior Science and Technology Advisor Office of the Deputy Director for Science Programs

208

The Brown-dwarf Atmosphere Monitoring (BAM) Project II: Multi-epoch monitoring of extremely cool brown dwarfs  

E-Print Network [OSTI]

With the discovery of Y dwarfs by the WISE mission, the population of field brown dwarfs now extends to objects with temperatures comparable to those of Solar System planets. To investigate the atmospheres of these newly identified brown dwarfs, we have conducted a pilot study monitoring an initial sample of three late T-dwarfs (T6.5, T8 and T8.5) and one Y-dwarf (Y0) for infrared photometric variability at multiple epochs. With J-band imaging, each target was observed for a period of 1.0h to 4.5h per epoch, which covers a significant fraction of the expected rotational period. These measurements represent the first photometric monitoring for these targets. For three of the four targets (2M1047, Ross 458C and WISE0458), multi-epoch monitoring was performed, with the time span between epochs ranging from a few hours to ~2 years. During the first epoch, the T8.5 target WISE0458 exhibited variations with a remarkable min-to-max amplitude of 13%, while the second epoch light curve taken ~2 years later did not not...

Rajan, A; Wilson, P A; Bulger, J; De Rosa, R J; Ward-Duong, K; Morley, C; Pont, F; Windhorst, R

2015-01-01T23:59:59.000Z

209

E-Print Network 3.0 - amorphous ball-milled powders Sample Search...  

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

Vols. 2-6 (1999) pp. 375-380. 375 Summary: of Nanoporous Carbon Powders Produced by High Energy Ball Milling and Formation of Carbon Nanotubes During... Procedure Graphite powder...

210

Cr17Ni14Mo3 Powder Laser Cladding on 45Steel Substrate  

Science Journals Connector (OSTI)

The relationship between laser power, scan-rate, thickness of pre-placed powder particles, overlap, preheating and laser cladding coating quality was analyzed. Laser cladding of Cr17Ni14Mo3 stainless steel powder...

Sun Huilai; Lin Shuzhong; Zhao Fangfang; Qi Xiangyang

2010-01-01T23:59:59.000Z

211

Rheological properties of water-coal slurries based on brown coal in the presence of sodium lignosulfonates and alkali  

SciTech Connect (OSTI)

The effect of the oxidized surface of brown coal on the structural and rheological properties of water-coal slurries was found. The kinetics of structure formation processes in water-coal slurries based on as-received and oxidized brown coal was studied. The effect of lignosulfonate and alkali additives on the samples of brown coal was considered.

D.P. Savitskii; A.S. Makarov; V.A. Zavgorodnii [National Academy of Sciences of Ukraine, Kiev (Ukraine). Dumanskii Institute of Colloid and Water Chemistry

2009-07-01T23:59:59.000Z

212

Obtaining the best subset in regression analysis  

E-Print Network [OSTI]

and patience during this undertaking. 111 TABLE OF CONTENTS Chapte r Page I. INTRODUCTION Statement of the Problem. Review of the Literature Summary of Research 1 2 6 DEVELOPMENT OF THE SELECTION PROCEDURE Preliminary Remarks The Selection... = p'B - p' Bk (2 () If k & r, this method of determining a is inefficient since it re- quires the inversion of the k x k matrix C . In Lemma 2 below, an alternate expression for a is obtained which requires only the inver- sion of an r x r matrix...

Leslie, Robert Norton

2012-06-07T23:59:59.000Z

213

Effect of a constant magnetic field on echo signals in high-temperature superconductor powders  

Science Journals Connector (OSTI)

The generation of acoustic and vortex oscillations in high-temperature superconductor (HTSC) powders excited by radiofrequency (rf...

E. G. Apushkinskii; M. S. Astrov

2013-03-01T23:59:59.000Z

214

Multi-Seam Well Completion Technology: Implications for Powder River Basin Coalbed Methane Production  

SciTech Connect (OSTI)

The purpose of this study is to evaluate the potential benefits of applying multiseam [well] completion (MSC) technology to the massive stack of low-rank coals in the Powder River Basin. As part of this, the study objectives are: Estimate how much additional CBM resource would become accessible and technically recoverable--compared to the current practice of drilling one well to drain a single coal seam; Determine whether there are economic benefits associated with MSC technology utilization (assuming its widespread, successful application) and if so, quantify the gains; Briefly examine why past attempts by Powder River Basin CBM operators to use MSC technology have been relatively unsuccessful; Provide the underpinnings to a decision whether a MSC technology development and/or demonstration effort is warranted by DOE. To a great extent, this assessment builds on the previously published study (DOE, 2002), which contains many of the key references that underlie this analysis. It is available on the U.S. Department of Energy, National Energy technology Laboratory, Strategic Center for Natural Gas website (www.netl.doe.gov/scng). It is suggested that readers obtain a copy of the original study to complement the current report.

Office of Fossil Energy; National Energy Technology Laboratory

2003-09-01T23:59:59.000Z

215

"Ceramics and high-temperature composites, silicides" Oxidation of Stainless Steel Powder  

E-Print Network [OSTI]

: Powder, stainless steel, oxidation INTRODUCTION Ceramic matrix composites dispersed with metal particles"Ceramics and high-temperature composites, silicides" CHTC9 Oxidation of Stainless Steel Powder. To understand the corrosion behavior of a model 304L(p)-ZrO2(s) composite, a 304L stainless steel powder has

Paris-Sud XI, Université de

216

MEMORANDUM FROM: THOMAS E. BROWN, DIRECTOR OFFICE OF CONTRACT MANAGEMENT  

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

,2008 ,2008 MEMORANDUM FROM: THOMAS E. BROWN, DIRECTOR OFFICE OF CONTRACT MANAGEMENT OFFICE OF PROCUREMENT AND ASSISTANCE MANAGEMENT SUBJECT: Contract Change Order Administration of Department of Energy Prime Contracts The purpose of this memorandum is to highlight the need for good contract administration of Department of Energy (DOE) contracts (non management and operating contracts) including those covered by DOE Order 413.3A, Program and Project Management for the Acquisition of Capital Assets. One of the focus areas of the DOE's efforts to improve contract and project management is the recopition that effectrve contract change order administration is critical to ensuring that contract and project requirements are met. Fundamentally, the award of an appropriate contract type that best

217

Pascal Baron, CEA - France Christine Brown, BNFL - U.K.  

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

- November 2004 - November 2004 Final Report - November 2004 An Evaluation of the Proliferation Resistant Characteristics of Light Water Reactor Fuel with the Potential for Recycle in the United States Pascal Baron, CEA - France Christine Brown, BNFL - U.K. Bruce Kaiser, WGI - U.S.A. Bruce Matthews, LANL - U.S.A. Takehiko Mukaiyama, JAIF- Japan Ronald Omberg, PNNL, U.S.A. Lee Peddicord, Texas A&M - U.S.A., Massimo Salvatores, CEA - France, Alan Waltar, PNNL - U.S.A., Chair Compiled by Alan E. Waltar and Ronald P. Omberg Pacific Northwest National Laboratory Final Report - November 2004 Final Report - November 2004 1 Table of Contents Executive Summary 2 I. Introduction 5 II. Background 5 III. Historical Perspective 7

218

Project title: EMF Remodel Requested By: Scotty Brown  

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

EMF Remodel EMF Remodel Requested By: Scotty Brown Date Submitted: 811112011 Dcscl"iption of the Pl'Ojcct: Purpose and Need Mail Code: N5540 Phone: 916-353-4539 Date Required: 8116/2011 The Elverta Maintenance Facility (EMF), as currently designed and built, has run out of adequate space to accommodate Western's parking needs for maintenance vehicles and overall workshop space for materials and required equipment. An expanded, renovated and remodeled facility, with a larger parking garage and workshop area(s), will enable Western to maintain its vehicle fleet to the required standards and provide additional workshop space to accommodate the equipment, tools, and materials necessary to construct and maintain Western's electrical transmission system and related facilities.

219

Brown County Rural Elec Assn | Open Energy Information  

Open Energy Info (EERE)

Rural Elec Assn Rural Elec Assn Jump to: navigation, search Name Brown County Rural Elec Assn Place Minnesota Utility Id 2316 Utility Location Yes Ownership C NERC Location MRO NERC MRO Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png General Single Phase Service-Controlled electric Heat Commercial General Single Phase Service Commercial General Single Phase Service(Load Management) Commercial General Three Phase Service Commercial General Three Phase Service(Load Management) Commercial General Three Phase Service- Controlled Electric Heat Commercial

220

Hanbury-Brown--Twiss analysis in a solvable model  

SciTech Connect (OSTI)

The analysis of meson correlations by Hanbury-Brown--Twiss interferometry is tested with a simple model of meson production by resonance decay. We derive conditions which should be satisfied in order to relate the measured momentum correlation to the classical source size. The Bose correlation effects are apparent in both the ratio of meson pairs to singles and in the ratio of like to unlike pairs. With our parameter values, we find that the single particle distribution is too distorted by the correlation to allow a straightforward analysis using pair correlation normalized by the singles rates. An analysis comparing symmetrized to unsymmetrized pairs is more robust, but nonclassical off-shell effects are important at realistic temperatures.

Bertsch, G.F.; Danielewicz, P.; Herrmann, M. (Institute for Nuclear Theory, HN-12, University of Washington, Seattle, Washington 98195 (United States) Physics Department, FM-15, University of Washington, Seattle, Washington 98195 (United States) Department of Physics and Astronomy and National Superconducting Cyclotron Laboratory, Michigan State University, East Lansing, Michigan 48824 (United States))

1994-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

The Advanced Automation for Powder Diffraction toward Industrial Application  

SciTech Connect (OSTI)

A highly automated system for powder diffraction with synchrotron radiation was installed on the large Debye-Scherrer camera at the BL19B2 Engineering Science Research I beamline of SPring-8. Combined with a sample transfer and an automated centering system, we have succeeded in increasing the ratio of exposure time in the user beam time to 85%. The proposed system can be applied to a wide range of industrial uses.

Osaka, Keiichi; Matsumoto, Takuya; Miura, Keiko; Sato, Masugu; Hirosawa, Ichiro; Watanabe, Yoshio [Industrial Application Division, Japan Synchrotron Radiation Research Institute (JASRI/SPring8), 1-1-1, Kouto, Sayo-cho, Sayo-gun, Hyogo 679-5198 (Japan)

2010-06-23T23:59:59.000Z

222

The Advanced Automation for Powder Diffraction toward Industrial Application  

Science Journals Connector (OSTI)

A highly automated system for powder diffraction with synchrotron radiation was installed on the large Debye?Scherrer camera at the BL19B2 Engineering Science Research I beamline of SPring?8. Combined with a sample transfer and an automated centering system we have succeeded in increasing the ratio of exposure time in the user beam time to 85%. The proposed system can be applied to a wide range of industrial uses.

Keiichi Osaka; Takuya Matsumoto; Keiko Miura; Masugu Sato; Ichiro Hirosawa; Yoshio Watanabe

2010-01-01T23:59:59.000Z

223

Aerosol-Derived Bimetallic Alloy Powders: Bridging the Gap  

SciTech Connect (OSTI)

We present aerosol-derived alloy powders as a uniquely useful platform for studying the contribution of the metal phase to multifunctional supported catalysts. Multimetallic heterogeneous catalysts made by traditional methods are usually nonhomogenous while UHV-based methods, such as mass selected clusters or metal vapor deposited on single crystals, lead to considerably more homogeneous, well-defined samples. However, these well-defined samples have low surface areas and do not lend themselves to catalytic activity tests in flow reactors under industrially relevant conditions. Bimetallic alloy powders derived by aerosol synthesis are homogeneous and single phase and can have surface areas ranging 1-10 m2/g, making them suitable for use in conventional flow reactors. The utility of aerosol-derived alloy powders as model catalysts is illustrated through the synthesis of single phase PdZn which was used to derive the specific reactivity of the L10 tetragonal alloy phase for methanol steam reforming. Turnover frequencies on unsupported PdZn were determined from the experimentally determined metal surface area to be 0.21 molecules of methanol reacted per surface Pd at 250 C and 0.06 molecules of CO oxidized to CO2 per surface Pd at 185 C. The experimentally measured activation energies for MSR and CO-oxidation on PdZn are 48 and 87 kJ/mol, respectively.

Halevi, Barr; Peterson, Eric; DelaRiva, Andrew; Jeroro, E.; Lebarbier, Vanessa MC; Wang, Yong; Vohs, John M.; Kiefer, Boris; Kunkes, Edward L.; Havecker , Michael; Behrens, Malte; Schlogl, Robert; Datye, Abhaya K.

2010-09-03T23:59:59.000Z

224

Ferromagnetic Resonance of Micro- and Nano-sized Hexagonal Ferrite Powders at Millimeter Waves  

SciTech Connect (OSTI)

Complex magnetic permeability and dielectric permittivity of micro- and nano-sized powdered barium (BaFe{sub 12}O{sub 19}) and strontium (SrFe{sub 12}O{sub 19}) hexaferrites have been studied in a broadband millimeter wave frequency range (30-120 GHz). Transmittance measurements have been performed using a free space quasi-optical millimeter wave spectrometer, equipped with a set of high power backward wave oscillators. Real and imaginary parts of dielectric permittivity for both types of micro- and nanoferrites have been calculated using analysis of recorded high precision transmittance spectra. Frequency dependences of the magnetic permeability have been obtained from Schloemann's equation for partially magnetized ferrites. These materials show promise as tunable millimeter wave absorber, based on their size-dependent absorption.

Korolev, Konstantin A.; McCloy, John S.; Afsar, Mohammed N.

2012-02-22T23:59:59.000Z

225

Preparation of feedstocks from nano/submicron-sized TiO2 particles to obtain photocatalytic coatings by atmospheric plasma spraying  

Science Journals Connector (OSTI)

Abstract Atmospheric plasma spraying (APS) has been proved useful in obtaining TiO2 coatings with effective photocatalytic activity. However, the influence of feedstock characteristics on photocatalytic activity has hardly been addressed. This study was undertaken to prepare TiO2 photocatalytic coatings by APS from different feedstocks. The feedstocks were obtained by spray drying suspensions of a nano- and a submicron-sized TiO2 powder, with different solids contents and/or ratios of the nano- to submicron-sized particles. All the resulting powders were fully characterised to assess their suitability for use in APS processes. Feedstock powders were then deposited on steel coupons by APS using hydrogen or helium as secondary plasma gas. Coating microstructure and phase composition were characterised. Coating photocatalytic activity was determined by measuring the degradation of methylene blue dye in an aqueous solution. Powder characterisation showed that all feedstocks met plasma spray operation requirements with regard to agglomerate size distribution and density, as well as to powder flowability. Optimum agglomerate density was obtained when a well-balanced mixture of nano- and submicron-sized particles was used. All coatings displayed a bimodal microstructure with partially melted agglomerates that retained the initial nano- or submicron-sized structure and composition (anatase phase) of the feedstock, surrounded by a fully melted matrix mainly formed by rutile. As expected, coating porosity as well as the amount of partially melted areas depended strongly on plasma spray conditions and on feedstock characteristics. With regard to photocatalytic activity, a reasonably good fit of a first-order kinetic model to the experimental data was found for all coatings. The kinetic constants obtained displayed higher values than those of a commercial solgel coating. The values of these constants were related to feedstock characteristics as well as to plasma spraying conditions on the basis of anatase content. The contribution of other factors to the resulting coating surface is also discussed.

Mari Carmen Bordes; Mnica Vicent; Arnaldo Moreno; Vernica Lpez; Rodrigo Moreno; Mar;a Dolores Salvador; Rut Benavente; Enrique Snchez

2014-01-01T23:59:59.000Z

226

Effect of starting powders on the sintering of nanostructured ZrO2 ceramics by colloidal processing  

Science Journals Connector (OSTI)

The effect of starting powders on the sintering of nanostructured tetragonal zirconia was evaluated. Suspensions were prepared with a concentration of 10?vol.% by mixing a bicomponent mixture of commercial powders (97?mol.% monoclinic zirconia with 3?mol.% yttria) and by dispersing commercially available tetragonal zirconia (3YTZ, Tosoh). The preparation of the slurry by bead-milling was optimized. Colloidal processing using 50??m zirconia beads at 4000?rpm generated a fully deagglomerated suspension leading to the formation of high-density consolidated compacts (62% of the theoretical density (TD) for the bicomponent suspension). Optimum colloidal processing of the bicomponent suspension followed by the sintering of yttria and zirconia allowed us to obtain nanostructured tetragonal zirconia. Three different sintering techniques were investigated: normal sintering, two-step sintering and spark plasma sintering. The inhibition of grain growth in the bicomponent mixed powders in comparison with 3YTZ was demonstrated. The inhibition of the grain growth may have been caused by inter-diffusion of cations during the sintering.

Gustavo Surez; Yoshio Sakka; Tohru S Suzuki; Tetsuo Uchikoshi; Xinwen Zhu; Esteban F Aglietti

2009-01-01T23:59:59.000Z

227

Risk-Based Cleanup Actions for Closure of a Brown field Site  

SciTech Connect (OSTI)

Operating as a rail yard from approximately 1908 to 1987, Station Place is a 7.1-acre (4,046 square meter) property located in the downtown Portland, Oregon, River District Urban Renewal Area. The site soils were impacted with metals and polynuclear aromatic hydrocarbon compounds (PAHs). Benzene and select PAHs were detected in the shallow groundwater. Residual non-aqueous phase liquid (NAPL) was detected within the shallow saturated zone between 15 and 40 feet (4.5 to 12 meters) below grade and in the Troutdale Formation (used for municipal water supply at up-gradient location) at depths of up to 80 feet (24 meters) below grade. Site closure was obtained and redevelopment was completed at the site, by the Portland Development Commission and REACH Community Development, Inc., following the preparation of a baseline deterministic human health risk assessment, and beneficial land and water use determination to assess whether exposure to groundwater and soil posed a threat to human health or the environment. The property now provides affordable housing for the elderly and a city-owned parking garage. The housing provides substantial community benefit, allowing elderly people to live in a vibrant, exciting part of the city. Portland's city-owned parking garages also provide much needed parking space at reasonable rates. Both of these additions have changed an under-used Brown Field into affordable facilities, in a lively urban environment. (authors)

Rice, H.W.; Feild, J.F.; Farr Jr, L.C. [AMEC Earth and Environmental, Inc., Portland, Oregon (United States)

2007-07-01T23:59:59.000Z

228

Kinetic analysis of non-enzymatic browning in carrot juice concentrate during storage  

Science Journals Connector (OSTI)

The effect of storage temperature, storage time and total soluble solid (TSS) on the total sugar (TS), sucrose, glucose, fructose, total amino acid (TAA), pH, 5-hydroxymethylfurfural (HMF) and browning degree (BD...

Hou-yin Wang; Xiao-song Hu; Fang Chen; Ji-hong Wu

2006-06-01T23:59:59.000Z

229

E-Print Network 3.0 - anadromous brown trout Sample Search Results  

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

Search Sample search results for: anadromous brown trout Page: << < 1 2 3 4 5 > >> 1 J. Fish Biol. (1987)31, 143-146 Mating of anadromousAtlanticsalmon, Salmo salar L., with...

230

Travis Brown and Kamran Baksh, Final Submission | OpenEI Community  

Open Energy Info (EERE)

Travis Brown and Kamran Baksh, Final Submission Home > Groups > 2014 Geothermal Case Study Challenge CSM's picture Submitted by CSM(5) Member 14 May, 2014 - 21:59 Colorado School...

231

STATE OF CALIFORNIA NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

Recommendation 6 Redwood Coast Energy Authority Northwest California Alternative Fuels Readiness Project $300 Alternative Fuel Readiness Proposed Awards California Energy Commission Alternative and Renewable FuelSTATE OF CALIFORNIA ­ NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY

232

IDENTIFICATION AND FUNCTIONS OF USEFULLY DISORDERED PROTEINS BY A. KEITH DUNKER, CELESTE J. BROWN AND  

E-Print Network [OSTI]

1 IDENTIFICATION AND FUNCTIONS OF USEFULLY DISORDERED PROTEINS BY A. KEITH DUNKER, CELESTE J. BROWN. PONDR Accuracies III. PONDR Estimations of the Commonness of Intrinsically Disordered Proteins IV. Functions of Intrinsically Disordered Protein V. Conclusions References Numerous apparently native proteins

Obradovic, Zoran

233

Do Red and Green Make Brown?: Perspectives on Plastid Acquisitions within Chromalveolates  

Science Journals Connector (OSTI)

...review-article Minireview Do Red and Green Make Brown?: Perspectives on Plastid...the recent discovery of large numbers of green algal genes in chromalveolate genomes...chromalveolates historically possessed a cryptic green algal endosymbiont that was subsequently...

Richard G. Dorrell; Alison G. Smith

2011-05-27T23:59:59.000Z

234

Clouds in the coldest brown dwarfs: FIRE spectroscopy of Ross 458C  

E-Print Network [OSTI]

Condensate clouds are a salient feature of L dwarf atmospheres, but have been assumed to play little role in shaping the spectra of the coldest T-type brown dwarfs. Here we report evidence of condensate opacity in the ...

Burgasser, Adam

235

New Zealand lessons may aid efforts to control light brown apple moth in California  

E-Print Network [OSTI]

1975. Integrated control of apple pests in New Zealand. 1.of the light brown apple moth Epiphyas postvittana (Walker),68592. Dumbleton L J. 1932. The apple leaf-roller (Tortrix

Varela, Lucia G.; Walker, James T.S.; Lo, Peter L; Rogers, David J

2010-01-01T23:59:59.000Z

236

A comparison of selected physical characteristics of brown and white shell eggs  

E-Print Network [OSTI]

OF SCIENCE May 1982 Ma jor Suhject: Poultry Science A COMPARISON OF SELECTED PHYSICAL CHARACTERISTICS OF BROWN AND WHITE SHELL EGGS A Thesis by CECILY LYNN WASHINGTON Approved as to style and content by: (Chairman of Co ttee) (Member (Member...) (Member) (Member ) (M er) (Head of Depart nt) May 1982 A COMPARISON OF SELECTED PHYSICAL CHARACTERISTICS OF BROWN AND WHITE SHELL EGGS A Thesis by CECILY LYNN WASHINGTON Submitted to the Graduate College of Texas A & M University in partial...

Washington, Cecily Lynn

1982-01-01T23:59:59.000Z

237

Effect of coating time on corrosion behavior of electroless nickel-phosphorus coated powder metallurgy iron specimens  

SciTech Connect (OSTI)

Powder metallurgy iron specimens with porosities in the range 0% to 2% were electroless coated with nickel-phosphorus alloy from baths containing sodium hypophosphite (NaH{sub 2}PO{sub 2}{center_dot}H{sub 2}O). The effect of coating time on thickness and phosphorus content of the deposit was analyzed. The free corrosion potentials and corrosion rates of the coated specimens were obtained by the Tafel extrapolation method in 1.0 M hydrochloric acid (HCl) solution. Corrosion rates of the coated specimens after heat treatment also were studied. The observed corrosion characteristics were explained by the mixed-potential theory.

Singh, D.; Balasubramaniam, R.; Dube, R.K. [Indian Inst. of Tech., Kanpur (India). Dept. of Materials and Metallurgical Engineering

1995-08-01T23:59:59.000Z

238

Quantitative Trait Loci Affecting Milk Yield and Protein Percentage in a Three-Country Brown Swiss Population  

Science Journals Connector (OSTI)

Quantitative trait loci (QTL) mapping projects have been implemented mainly in the Holstein dairy cattle breed for several traits. The aim of this study is to map QTL for milk yield (MY) and milk protein percent (PP) in the Brown Swiss cattle populations of Austria, Germany, and Italy, considered in this study as a single population. A selective DNA pooling approach using milk samples was applied to map QTL in 10 paternal half-sib daughter families with offspring spanning from 1,000 to 3,600 individuals per family. Three families were sampled in Germany, 3 in Italy, 1 in Austria and 3 jointly in Austria and Italy. The pools comprised the 200 highest and 200 lowest performing daughters, ranked by dam-corrected estimated breeding value for each sire-trait combination. For each tail, 2 independent pools, each of 100 randomly chosen daughters, were constructed. Sire marker allele frequencies were obtained by densitometry and shadow correction analyses of 172 genome-wide allocated autosomal markers. Particular emphasis was placed on Bos taurus chromosomes 3, 6, 14, and 20. Marker association for MY and PP with a 10% false discovery rate resulted in nominal P-values of 0.071 and 0.073 for MY and PP, respectively. Sire marker association tested at a 20% false discovery rate (within significant markers) yielded nominal P-values of 0.031 and 0.036 for MY and PP, respectively. There were a total of 36 significant markers for MY, 33 for PP, and 24 for both traits; 75 markers were not significant for any of the traits. Of the 43 QTL regions found in the present study, 10 affected PP only, 8 affected MY only, and 25 affected MY and PP. Remarkably, all 8 QTL regions that affected only MY in the Brown Swiss, also affected MY in research reported in 3 Web-based QTL maps used for comparison with the findings of this study (http://www.vetsci.usyd.edu.au/reprogen/QTL_Map/; http://www.animalgenome.org/QTLdb/cattle.html; http://bovineqtl.tamu.edu/). Similarly, all 10 QTL regions in the Brown Swiss that affected PP only, affected only PP in the databases. Thus, many QTL appear to be common to Brown Swiss and other breeds in the databases (mainly Holstein), and an appreciable fraction of QTL appears to affect MY or PP primarily or exclusively, with little or no effect on the other trait. Although QTL information available today in the Brown Swiss population can be utilized only in a within family marker-assisted selection approach, knowledge of QTL segregating in the whole population should boost gene identification and ultimately the implementation and efficiency of an individual genomic program.

A. Bagnato; F. Schiavini; A. Rossoni; C. Maltecca; M. Dolezal; I. Medugorac; J. Slkner; V. Russo; L. Fontanesi; A. Friedmann; M. Soller; E. Lipkin

2008-01-01T23:59:59.000Z

239

Production of films and powders for semiconductor device applications  

DOE Patents [OSTI]

A process is described for chemical bath deposition of selenide and sulfide salts as films and powders employable as precursors for the fabrication of solar cell devices. The films and powders include (1) Cu{sub x}Se{sub n}, wherein x=1--2 and n=1--3; (2) Cu{sub x}Ga{sub y}Se{sub n}, wherein x=1--2, y=0--1 and n=1--3; (3) Cu{sub x}In{sub y}Se{sub n}, wherein x=1--2.27, y=0.72--2 and n=1--3; (4) Cu{sub x}(InGa){sub y}Se{sub n}, wherein x=1--2.17, y=0.96--2 and n=1--3; (5) In{sub y}Se{sub n}, wherein y=1--2.3 and n=1--3; (6) Cu{sub x}S{sub n}, wherein x=1--2 and n=1--3; and (7) Cu{sub x}(InGa){sub y}(SeS){sub n}, wherein x=1--2, y=0.07--2 and n=0.663--3. A reaction vessel containing therein a substrate upon which will form one or more layers of semiconductor material is provided, and relevant solution mixtures are introduced in a sufficient quantity for a sufficient time and under favorable conditions into the vessel to react with each other to produce the resultant salt being prepared and deposited as one or more layers on the substrate and as a powder on the floor of the vessel. Hydrazine is present during all reaction processes producing non-gallium containing products and optionally present during reaction processes producing gallium-containing products to function as a strong reducing agent and thereby enhance reaction processes. 4 figs.

Bhattacharya, R.N.; Noufi, R.; Li Wang

1998-03-24T23:59:59.000Z

240

Structural studies of magnesium nitride fluorides by powder neutron diffraction  

SciTech Connect (OSTI)

Samples of ternary nitride fluorides, Mg{sub 3}NF{sub 3} and Mg{sub 2}NF have been prepared by solid state reaction of Mg{sub 3}N{sub 2} and MgF{sub 2} at 1323-1423 K and investigated by powder X-ray and powder neutron diffraction techniques. Mg{sub 3}NF{sub 3} is cubic (space group: Pm3m) and has a structure related to rock-salt MgO, but with one cation site vacant. Mg{sub 2}NF is tetragonal (space group: I4{sub 1}/amd) and has an anti-LiFeO{sub 2} related structure. Both compounds are essentially ionic and form structures in which nitride and fluoride anions are crystallographically ordered. The nitride fluorides show temperature independent paramagnetic behaviour between 5 and 300 K. - Graphical abstract: Definitive structures of the ternary magnesium nitride fluorides Mg{sub 3}NF{sub 3} and the lower temperature polymorph of Mg{sub 2}NF have been determined from powder neutron diffraction data. The nitride halides are essentially ionic and exhibit weak temperature independent paramagnetic behaviour. Highlights: Black-Right-Pointing-Pointer Definitive structures of Mg{sub 3}NF{sub 3} and Mg{sub 2}NF were determined by neutron diffraction. Black-Right-Pointing-Pointer Nitride and fluoride anions are crystallographically ordered in both structures. Black-Right-Pointing-Pointer Both compounds exhibit weak, temperature independent paramagnetic behaviour. Black-Right-Pointing-Pointer The compounds are essentially ionic with ionicity increasing with F{sup -} content.

Brogan, Michael A. [School of Chemistry, University of Nottingham, Nottingham NG7 2RD (United Kingdom); Hughes, Robert W. [WestCHEM, School of Chemistry, University of Glasgow, Glasgow G12 8QQ (United Kingdom); Smith, Ronald I. [ISIS Pulsed Neutron and Muon Source, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX (United Kingdom); Gregory, Duncan H., E-mail: Duncan.Gregory@glasgow.ac.uk [WestCHEM, School of Chemistry, University of Glasgow, Glasgow G12 8QQ (United Kingdom)

2012-01-15T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

Chemical abundances of stars with brown-dwarf companions  

E-Print Network [OSTI]

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

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

2014-01-01T23:59:59.000Z

242

HABITABLE PLANETS ECLIPSING BROWN DWARFS: STRATEGIES FOR DETECTION AND CHARACTERIZATION  

SciTech Connect (OSTI)

Given the very close proximity of their habitable zones, brown dwarfs (BDs) represent high-value targets in the search for nearby transiting habitable planets that may be suitable for follow-up occultation spectroscopy. In this paper, we develop search strategies to find habitable planets transiting BDs depending on their maximum habitable orbital period (P{sub HZ{sub out}}). Habitable planets with P{sub HZ{sub out}} shorter than the useful duration of a night (e.g., 8-10 hr) can be screened with 100% completeness from a single location and in a single night (near-IR). More luminous BDs require continuous monitoring for longer duration, e.g., from space or from a longitude-distributed network (one test scheduling achieved three telescopes, 13.5 contiguous hours). Using a simulated survey of the 21 closest known BDs (within 7 pc) we find that the probability of detecting at least one transiting habitable planet is between 4.5{sup +5.6}{sub -1.4}% and 56{sup +31}{sub -13}%, depending on our assumptions. We calculate that BDs within 5-10 pc are characterizable for potential biosignatures with a 6.5 m space telescope using {approx}1% of a five-year mission's lifetime spread over a contiguous segment only one-fifth to one-tenth of this duration.

Belu, Adrian R.; Selsis, Franck; Raymond, Sean N.; Bolmont, Emeline [Universite de Bordeaux, LAB, UMR 5804, F-33270, Floirac (France); Palle, Enric [Instituto de Astrofisica de Canarias, E-38205 La Laguna (Spain); Street, Rachel [Las Cumbres Observatory Global Telescope Network, 6740 Cortona Drive, Suite 102, Goleta, CA 93117 (United States); Sahu, D. K.; Anupama, G. C. [Indian Institute of Astrophysics, Koramangala, Bangalore 560034 (India); Von Braun, Kaspar [NASA Exoplanet Science Institute, California Institute of Technology, MC 100-22, Pasadena, CA 91125 (United States); Figueira, Pedro [Centro de Astrofisica, Universidade do Porto, Rua das Estrelas, 4150-762 Porto (Portugal); Ribas, Ignasi, E-mail: belu@obs.u-bordeaux1.fr [Institut de Ciencies de l'Espai (CSIC-IEEC), Campus UAB, Facultat de Ciencies, Torre C5, parell, 2a pl., E-08193 Bellaterra (Spain)

2013-05-10T23:59:59.000Z

243

Bulk synthesis of nanoporous palladium and platinum powders  

DOE Patents [OSTI]

Disclosed is a method for providing nanoporous palladium and platinum powders. These materials were synthesized on milligram to gram scales by chemical reduction of tetrahalo-complexes with ascorbate in a concentrated aqueous surfactant at temperatures between -20.degree. C. and 30.degree. C. The prepared particles have diameters of approximately 50 nm, wherein each particle is perforated by pores having diameters of approximately 3 nm, as determined by electron tomography. These materials are of potential value for hydrogen and electrical charge storage applications.

Robinson, David B. (Fremont, CA); Fares, Stephen J. (Pleasanton, CA); Tran, Kim L. (Livermore, CA); Langham, Mary E. (Pleasanton, CA)

2012-04-17T23:59:59.000Z

244

Bulk synthesis of nanoporous palladium and platinum powders  

DOE Patents [OSTI]

Disclosed is a method for providing nanoporous palladium and platinum powders. These materials were synthesized on milligram to gram scales by chemical reduction of tetrahalo-complexes with ascorbate in a concentrated aqueous surfactant at temperatures between -20.degree. C. and 30.degree. C. The prepared particles have diameters of approximately 50 nm, wherein each particle is perforated by pores having diameters of approximately 3 nm, as determined by electron tomography. These materials are of potential value for hydrogen and electrical charge storage applications.

Robinson, David B; Fares, Stephen J; Tran, Kim L; Langham, Mary E

2014-04-15T23:59:59.000Z

245

New coal dewatering technology turns sludge to powder  

SciTech Connect (OSTI)

Virginian Tech's College of Engineering's Roe-Hoan Yoon and his group have developed a hyperbaric centrifuge that can dewater coal as fine as talcum powder. Such coal fines presently must be discarded by even the most advanced coal cleaning plants because of their high moisture content. The new technology can be used with the Microcel technology to remove ash, to re-mine the fine coal discarded to impoundments and to help minimize waste generation. Virginia Tech has received $1 million in funding from the US Department of State to also help the Indian coal industry produce a cleaner product. 1 photo.

NONE

2009-03-15T23:59:59.000Z

246

Carbon Dioxide Sorption Isotherms and Matrix Transport Rates for Non-Powdered Coal  

SciTech Connect (OSTI)

For enhanced coalbed methane/carbon dioxide sequestration field projects, carbon dioxide isotherms and the rate of diffusion of the carbon dioxide from the cleats into the matrix are important parameters for predicting how much carbon dioxide actually will be sequestered under various operating conditions. Manometric (or pressure swing) experiments on powdered coal provide a quick, simple, and relatively inexpensive method for measuring sorption isotherms. However, determination of the rate of transport from cleat into matrix from the rate of gas pressure drop is difficult, if not impossible. (The characteristic time constant for the transport depends on the cleat spacing as well as the rate of diffusion.) Manometric measurements often yield isotherms that are extremely problematic in the region of the carbon dioxide critical point; perhaps even worse, available data seem to indicate that the sorption isotherms measured for powders are much larger than the isotherms of coal cores. Measurements on centimeter-sized samples can take weeks or months to reach equilibrium; for such equilibration times gas leakage rates that would be of no significance in powdered-coal measurements can completely invalidate manometric measurements on coal cores. We have tested and used a simple, inexpensive method for measuring isotherms and carbon dioxide transport rates in coal cores. One or more cores are placed in a simple pressure vessel, and a constant pressure is maintained in the vessel by connecting it to a gas supply (which contains a very large amount of gas compared to amount that could leak over the course of the experiment). From time to time the gas supply is shut off, the sample is removed, and its weight is recorded at ambient pressure at frequent time intervals for a period of about one hour. The sample is then returned to the pressure vessel, the carbon dioxide pressure restored to its previous value, and the equilibration resumed until the next sample weighing. For a point on the isotherm, the process is repeated until the sample weight reaches a constant value (i.e., typically equilibration times of several weeks). The slope of a plot of sample weight vs. square root of elapsed desorption time gives a measurement for the rate of diffusion. In order to advance all three experimental methods, results from this ambient-pressure gravimetry method were compared with data obtained by conventional manometry and by computer tomography. The isotherm and diffusion rate measured for the core can be directly used in simulators for reservoir engineering studies of coalseam sequestration and enhanced coalbed methane production.

Smith, D.H.; Jikich, S.; Seshadri, K.

2007-05-01T23:59:59.000Z

247

Densification of nanosized alumina powders by hot isostatic pressing (HIP)  

SciTech Connect (OSTI)

The densification of nanosized alumina powders to compacts of nearly theoretical density by Hot Isostatic Pressing was the aim of this work. Three types of powders produced by the so called exploding wire technique in the mesh size between 20 to 80 nm were used. Because of the big internal friction during dry pressing the densities achieved were only in the range of about 30% TD. Therefore it was necessary to use a second post densification step by cold isostatic pressing (CIP). With pressures as high as 750 MPa the authors received a density of 58% TD. The pellets were sealed in capsules of stainless steel which were densified at different temperatures between 900 C and 1,350 C with pressures between 120 and 300 MPa. The resulting compacts were examined by scanning electron microscopy. The resulting phases were determined by X-ray diffraction. Grain size measurement at the as fabricated compacts was a decisive criterion for the success of the experiments.

Weimar, P.; Knitter, R.; Szabo, D.V. [Forschungszentrum, Karlsruhe (Germany); Krauss, W.

1996-12-31T23:59:59.000Z

248

Thermal analysis of the southern Powder River Basin, Wyoming  

SciTech Connect (OSTI)

Temperature and geologic data from over 3,000 oil and gas wells within a 180 km x 30 km area that transect across the southern Powder River Basin in Wyoming, U.S.A., were used to determine the present thermal regime of the basin. Three-dimensional temperature fields within the transect, based on corrected bottom-hole temperatures (BHTs) and other geologic information, were assessed using: (1) A laterally constant temperature gradient model in conjunction with an L{sub 1} norm inversion method, and (2) a laterally variable temperature gradient model in conjunction with a stochastic inversion technique. The mean geothermal gradient in the transect is 29 C/km, but important lateral variations in the geothermal gradient exist. The average heat flow for the southern Powder River Basin is 52 mW/m{sup 2} with systematic variations between 40 mW/m{sup 2} and 60 mW/m{sup 2} along the transect. Extremely high local heat flow (values up to 225 mW/m{sup 2}) in the vicinity of the Teapot Dome and the Salt Creek Anticline and low heat flow of 25 mW/m{sup 2} occurring locally near the northeast end of the transect are likely caused by groundwater movement.

McPherson, B.J.O.L.; Chapman, D.S. [Univ. of Utah, Salt Lake City, UT (United States). Dept. of Geology and Geophysics] [Univ. of Utah, Salt Lake City, UT (United States). Dept. of Geology and Geophysics

1996-11-01T23:59:59.000Z

249

GRADIENT INDEX SPHERES BY THE SEQUENTIAL ACCRETION OF GLASS POWDERS  

SciTech Connect (OSTI)

The Department of Energy is seeking a method for fabricating mm-scale spheres having a refractive index that varies smoothly and continuously from the center to its surface [1]. The fabrication procedure must allow the creation of a range of index profiles. The spheres are to be optically transparent and have a refractive index differential greater than 0.2. The sphere materials can be either organic or inorganic and the fabrication technique must be capable of scaling to low cost production. Mo-Sci Corporation proposed to develop optical quality gradient refractive index (GRIN) glass spheres of millimeter scale (1 to 2 mm diameter) by the sequential accretion and consolidation of glass powders. Other techniques were also tested to make GRIN spheres as the powder-accretion method produced non-concentric layers and poor optical quality glass spheres. Potential ways to make the GRIN spheres were (1) by "coating" glass spheres (1 to 2 mm diameter) with molten glass in a two step process; and (2) by coating glass spheres with polymer layers.

MARIANO VELEZ

2008-06-15T23:59:59.000Z

250

Production and Characterization of Atomized U-Mo Powder by the Rotating Electrode Process  

SciTech Connect (OSTI)

In order to produce feedstock fuel powder for irradiation testing, the Idaho National Laboratory has produced a rotating electrode type atomizer to fabricate uranium-molybdenum alloy fuel. Operating with the appropriate parameters, this laboratory-scale atomizer produces fuel in the desired size range for the RERTR dispersion experiments. Analysis of the powder shows a homogenous, rapidly solidified microstructure with fine equiaxed grains. This powder has been used to produce irradiation experiments to further test adjusted matrix U-Mo dispersion fuel.

C.R. Clark; B.R. Muntifering; J.F. Jue

2007-09-01T23:59:59.000Z

251

E-Print Network 3.0 - amorphous aluminum powder Sample Search...  

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

slag... by limestone powder and BFS can lower the cost and enhance the greenness of concrete, since the production Source: Li, Victor C. - Departments of Civil and Environmental...

252

Real-space calculation of powder diffraction patterns on graphics processing units  

Science Journals Connector (OSTI)

This paper shows how the power of graphics processing units can be exploited to compute the powder diffraction pattern of nano-sized objects.

Gelisio, L.

2010-04-30T23:59:59.000Z

253

E-Print Network 3.0 - au powder surfaces Sample Search Results  

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

Mathematics 86 UNCORRECTEDPROOF MSA 21109 19 Summary: size distribution analyzer3 at Praxair 152 Surface Technologies Inc. Both of the powder types had... -xxx Effect of initial...

254

Multi-scale analysis and simulation of powder blending in pharmaceutical manufacturing  

E-Print Network [OSTI]

A Multi-Scale Analysis methodology was developed and carried out for gaining fundamental understanding of the pharmaceutical powder blending process. Through experiment, analysis and computer simulations, microscopic ...

Ngai, Samuel S. H

2005-01-01T23:59:59.000Z

255

Measurement of API concentration in pharmaceutical powder blends using frequency domain photon migration  

Science Journals Connector (OSTI)

Experiments and theory demonstrate that measurement precision in discrete, non-continuum media such as tissue or a powder bed, depends upon the concentration of the studied absorber...

Pan, Tianshu; Sevick-Muraca, Eva M

256

E-Print Network 3.0 - aluminum powder part Sample Search Results  

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

of metal powder... , are used for consolidation. At very high strain rates during plastic deformation ... Source: Ecole Polytechnique, Centre de mathmatiques Collection:...

257

Investigation of a novel passivation technique for gas atomized magnesium powders.  

E-Print Network [OSTI]

??Gas atomized magnesium powders are critical for the production of a wide variety of flares, tracer projectiles, and other munitions for the United States military, (more)

Steinmetz, Andrew Douglas

2011-01-01T23:59:59.000Z

258

Energy efficiency opportunities within the powder coating industry - Energy audit and pinch analysis.  

E-Print Network [OSTI]

??The powder coating industries in Sweden use about 525 GWh of energy every year. The need to reduce the energy use is increasing due to (more)

Bergek, Charlotte

2011-01-01T23:59:59.000Z

259

E-Print Network 3.0 - amorphous alloy powder Sample Search Results  

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

Summary: in a process called "mechanical alloying." Mechanical alloy- ing (MA) is a powder technique that allows... "mechanical alloying" by Ewan C. Mac- Queen, a patent...

260

E-Print Network 3.0 - alloyed fe-mo powder Sample Search Results  

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

of Magnetism and Magnetic Materials 213 (2000) 111116 Magnetic properties of transition-metal-doped a-Fe Summary: automated powder dirac- tometer, and room temperature Fe...

Note: This page contains sample records for the topic "brown powder obtained" 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

Low-momentum interactions with Brown-Rho-Ericson scalings, and the density dependence of the nuclear symmetry energy  

SciTech Connect (OSTI)

We have calculated the nuclear symmetry energy E{sub sym}({rho}) up to densities of 4-5{rho}{sub 0} with the effects from the Brown-Rho (BR) and Ericson scalings with the in-medium mesons included. Using the V{sub lowk} low-momentum interaction with and without such scalings, the equations of state (EOSs) of symmetric and asymmetric nuclear matter have been calculated using a ring-diagram formalism where the particle-particle-hole-hole ring diagrams are included to all orders. The EOSs for symmetric nuclear matter and neutron matter obtained with linear BR scaling are both overly stiff compared with the empirical constraints of Danielewicz et al. [Science 298, 1592 (2002)]. In contrast, satisfactory results are obtained by either using the nonlinear Ericson scaling or by adding a Skyrme-type three-nucleon force (TNF) to the unscaled V{sub lowk} interaction. Our results for E{sub sym}({rho}) obtained with the nonlinear Ericson scaling are in good agreement with the empirical values of Tsang et al. [Phys. Rev. Lett. 102, 122701 (2009)] and Li et al. [Phys. Rev. C 72, 064611 (2005)], while those with the TNF are slightly below these values. For densities below the nuclear saturation density {rho}{sub 0}, the results of the above calculations are nearly equivalent to each other and all are in satisfactory agreement with the empirical values.

Dong Huan; Kuo, T. T. S.; Machleidt, R. [Department of Physics and Astronomy, Stony Brook University, New York 11794-3800 (United States); Department of Physics, University of Idaho, Moscow, Idaho 83844 (United States)

2011-05-15T23:59:59.000Z

262

Low-momentum interactions with Brown-Rho-Ericson scalings and the density dependence of the nuclear symmetry energy  

E-Print Network [OSTI]

We have calculated the nuclear symmetry energy $E_{sym}(\\rho)$ up to densities of $4 \\sim 5 \\rho_0$ with the effects from the Brown-Rho (BR) and Ericson scalings for the in-medium mesons included. Using the $V_{low-k}$ low-momentum interaction with and without such scalings, the equations of state (EOS) of symmetric and asymmetric nuclear matter have been calculated using a ring-diagarm formalism where the particle-particle-hole-hole ring diagrams are included to all orders. The EOS for symmetric nuclear matter and neutron matter obtained with linear BR scaling are both overly stiff compared with the empirical constraints of Danielewicz {\\it et al.} \\cite{daniel02}. In contrast, satisfactory results are obtained by either using the nonlinear Ericson scaling or by adding a Skyrme-type three-nucleon force (TNF) to the unscaled $V_{low-k}$ interaction. Our results for $E_{sym}(\\rho)$ obtained with the nonlinear Ericson scaling are in good agreement with the empirical values of Tsang {\\it et al.} \\cite{tsang09} a...

Dong, Huan; Machleidt, R

2011-01-01T23:59:59.000Z

263

Low-momentum interactions with Brown-Rho-Ericson scalings and the density dependence of the nuclear symmetry energy  

E-Print Network [OSTI]

We have calculated the nuclear symmetry energy $E_{sym}(\\rho)$ up to densities of $4 \\sim 5 \\rho_0$ with the effects from the Brown-Rho (BR) and Ericson scalings for the in-medium mesons included. Using the $V_{low-k}$ low-momentum interaction with and without such scalings, the equations of state (EOS) of symmetric and asymmetric nuclear matter have been calculated using a ring-diagarm formalism where the particle-particle-hole-hole ring diagrams are included to all orders. The EOS for symmetric nuclear matter and neutron matter obtained with linear BR scaling are both overly stiff compared with the empirical constraints of Danielewicz {\\it et al.} \\cite{daniel02}. In contrast, satisfactory results are obtained by either using the nonlinear Ericson scaling or by adding a Skyrme-type three-nucleon force (TNF) to the unscaled $V_{low-k}$ interaction. Our results for $E_{sym}(\\rho)$ obtained with the nonlinear Ericson scaling are in good agreement with the empirical values of Tsang {\\it et al.} \\cite{tsang09} and Li {\\it et al.} \\cite{li05}, while those with TNF are slightly below these values. For densities below the nuclear saturation density $\\rho_0$, the results of the above calculations are nearly equivalent to each other and all in satisfactory agreement with the empirical values.

Huan Dong; T. T. S. Kuo; R. Machleidt

2011-01-10T23:59:59.000Z

264

IONIZATION IN ATMOSPHERES OF BROWN DWARFS AND EXTRASOLAR PLANETS. V. ALFVN IONIZATION  

SciTech Connect (OSTI)

Observations of continuous radio and sporadic X-ray emission from low-mass objects suggest they harbor localized plasmas in their atmospheric environments. For low-mass objects, the degree of thermal ionization is insufficient to qualify the ionized component as a plasma, posing the question: what ionization processes can efficiently produce the required plasma that is the source of the radiation? We propose Alfvn ionization as a mechanism for producing localized pockets of ionized gas in the atmosphere, having sufficient degrees of ionization (?10{sup 7}) that they constitute plasmas. We outline the criteria required for Alfvn ionization and demonstrate its applicability in the atmospheres of low-mass objects such as giant gas planets, brown dwarfs, and M dwarfs with both solar and sub-solar metallicities. We find that Alfvn ionization is most efficient at mid to low atmospheric pressures where a seed plasma is easier to magnetize and the pressure gradients needed to drive the required neutral flows are the smallest. For the model atmospheres considered, our results show that degrees of ionization of 10{sup 6}-1 can be obtained as a result of Alfvn ionization. Observable consequences include continuum bremsstrahlung emission, superimposed with spectral lines from the plasma ion species (e.g., He, Mg, H{sub 2}, or CO lines). Forbidden lines are also expected from the metastable population. The presence of an atmospheric plasma opens the door to a multitude of plasma and chemical processes not yet considered in current atmospheric models. The occurrence of Alfvn ionization may also be applicable to other astrophysical environments such as protoplanetary disks.

Stark, C. R.; Helling, Ch.; Rimmer, P. B. [SUPA, School of Physics and Astronomy, University of St Andrews, St Andrews, KY16 9SS (United Kingdom); Diver, D. A., E-mail: craig.stark@st-andrews.ac.uk [SUPA, School of Physics and Astronomy, Kelvin Building, University of Glasgow, Glasgow, G12 8QQ (United Kingdom)

2013-10-10T23:59:59.000Z

265

Neutron stars, {beta}-stable ring-diagram equation of state, and Brown-Rho scaling  

SciTech Connect (OSTI)

Neutron star properties, such as mass, radius, and moment of inertia, are calculated by solving the Tolman-Oppenheimer-Volkov (TOV) equations using the ring-diagram equation of state (EOS) obtained from realistic low-momentum NN interactions V{sub low-k}. Several NN potentials (CDBonn, Nijmegen, Argonne V18, and BonnA) have been employed to calculate the ring-diagram EOS where the particle-particle hole-hole ring diagrams are summed to all orders. The proton fractions for different radial regions of a {beta}-stable neutron star are determined from the chemical potential conditions {mu}{sub n}-{mu}{sub p}={mu}{sub e}={mu}{sub {mu}}. The neutron star masses, radii, and moments of inertia given by the aforementioned potentials all tend to be too small compared with the accepted values. Our results are largely improved with the inclusion of a Skyrme-type three-body force based on Brown-Rho scalings where the in-medium meson masses, particularly those of {omega}, {rho}, and {sigma}, are slightly decreased compared with their in-vacuum values. Representative results using such medium-corrected interactions are maximum neutron-star mass M{approx}1.8M{sub {center_dot}} with radius R{approx}9 km and moment of inertia {approx}60M{sub {center_dot}} km{sup 2}, values given by the four NN potentials being nearly the same. The effects of nuclei-crust EOSs on the properties of neutron stars are discussed.

Dong, Huan; Kuo, T. T. S.; Machleidt, R. [Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800 (United States); Department of Physics, University of Idaho, Moscow, Idaho 83844 (United States)

2009-12-15T23:59:59.000Z

266

Design and optimisation of a multi-powder feed system for the HVOF deposition process  

Science Journals Connector (OSTI)

Currently no specific method exists for the deposition of High Velocity Oxy-Fuel (HVOF) thermal spray functionally graded coatings. This paper investigates the design and optimisation of a multi-powder HVOF thermal spray device in order to deposit aluminium/tool-steel functionally graded coatings. A multi-powder feed device concept was developed. The concept was based on a stand alone two powder chamber device which integrates with common hopper systems to allow the mixing of two powders during thermal spray deposition. This concept was verified by simulation the design of this device for multi-powder flow using Finite Element Analysis (FEA) to arrive at the optimum dual feed design. The FEA model predicted the mixing and flow of two powders of various ratios' of mass flow rate and velocity based on an optimum designed shape and pressure ratios' of nitrogen gas in the chamber to pick-up shaft of 2.25:1. This yielded the best results in terms of carrying the powders from the mixing zone into the nitrogen gas flow path, inside the pick-up shaft and on towards the HVOF gun. Post finite element analysis the device was manufactured for the utilisation within the HVOF process. Optimisation tests of the device included; powder flow bench tests and HVOF thermal spraying of graded deposits. The results revealed a calibration graph for the two powders in question and the compositional variation across the deposit during functionally graded deposition. The composition of the graded deposits were close to that anticipated hence this showed the suitability of the newly designed multi-powder deposition system in mixing two powders for the purpose of producing HVOF graded coatings.

M. Hasan; J. Stokes; L. Looney; M.S.J. Hashmi

2008-01-01T23:59:59.000Z

267

The iron powder test for naphthenic acid corrosion studies  

SciTech Connect (OSTI)

In the course of an ongoing investigation into the phenomenon of naphthenic acid corrosion, a new test method has evolved and is currently being further developed to substitute the total acid number (TAN or neutralization number) as an indicator for naphthenic acid corrosion potential. It can also be used to complement conventional autoclave corrosion tests in high temperature environments, which are based on weight loss of steel coupons. In this new method an oil sample reacts with pure iron powder within an autoclave heated to the testing temperature. The result is based on the amount of dissolved iron found in the oil sample. The oil sample can dissolve an amount of iron for a given time at a given temperature, depending on the naphthenic acid corrosion, since these acids react with iron to produce oil soluble iron naphthenates. This paper describes the method, compares it with conventional crude corrosiveness testing, and proposes it as a new way of measuring naphthenic acid corrosion potential.

Hau, J.L.; Yepez, O.; Specht, M.I.; Lorenzo, R. [PDVSA-Intevep, Caracas (Venezuela)

1999-11-01T23:59:59.000Z

268

Hydroxyapatite powder used for rapid prototyping in medical engineering  

Science Journals Connector (OSTI)

A key requirement in the field of bone tissue engineering is the development of scaffold structures on which cells adhere. This can be done by fabricating scaffolds by direct procedures like Three-Dimensional (3D) printing or by indirect procedures like casting. With the 3D-printing process, different structures were built up using HydroxyApatite (HA) powder and a special binder material. Afterwards the printed 3D structures were sintered. For the casting process, moulds have been made of different resins by stereolithography and other processes using polymers and waxes. These structures were filled by a suspension of HA. The casting process yielded a better resolution than 3D printing, but exhibited restrictions with respect to the degree of porosity.

Alexander Ott; Franz Irlinger

2009-01-01T23:59:59.000Z

269

Powder River Energy Corporation Smart Grid Project | Open Energy  

Open Energy Info (EERE)

Country United States Country United States Headquarters Location Sundance, Wyoming Recovery Act Funding $2,554,807.00 Total Project Value $5,109,614.00 Coverage Area Coverage Map: Powder River Energy Corporation Smart Grid Project Coordinates 44.4063746°, -104.3757816° 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":[]}

270

Policy Flash 2013-24 Fee Determinations: Requirement to Obtain...  

Office of Environmental Management (EM)

Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's Input Policy Flash 2013-24 Fee Determinations: Requirement to Obtain Acquisition Executive's...

271

Arene Trifluoromethylation: An Effective Strategy to Obtain Air...  

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

Effective Strategy to Obtain Air-Stable nType Organic Semiconductors with Tunable Optoelectronic Arene Trifluoromethylation: An Effective Strategy to Obtain Air-Stable nType...

272

Step 5b: Help Program Contractors Obtain the Necessary Equipment...  

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

b: Help Program Contractors Obtain the Necessary Equipment Step 5b: Help Program Contractors Obtain the Necessary Equipment In addition to equipment for installing energy...

273

Harold Brown, 1992 | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Harold Brown, 1992 Harold Brown, 1992 The Enrico Fermi Award Fermi Award Home Nomination & Selection Guidelines Award Laureates 2010's 2000's 1990's 1980's 1970's 1960's 1950's Ceremony The Life of Enrico Fermi Contact Information The Enrico Fermi Award U.S. Department of Energy SC-2/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-9395 E: fermi.award@science.doe.gov 1990's Harold Brown, 1992 Print Text Size: A A A RSS Feeds FeedbackShare Page Citation For his outstanding contributions to national security; in technical leadership in the development of nuclear weapons, in leadership of Lawrence Livermore National Laboratory in its formative years, in leadership in formulating nuclear deterrence policy during the difficult Cold War period; and for excellent service and continued counsel to the government

274

Governor Brown's Research Priorities in the areas of Clean Energy and  

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

Governor Brown's Research Priorities in the areas of Clean Energy and Governor Brown's Research Priorities in the areas of Clean Energy and Energy Efficiency Speaker(s): Clifford Rechtschaffen Edward Randolph Heather Sanders Laurie ten Hope Date: October 26, 2012 - 12:00pm Location: 90-3122 Seminar Host/Point of Contact: Jodi Bellacicco Karen Salvini The Brown Administration has been pursuing numerous clean energy policies. These include developing 20,000 megawatts of renewable energy, including 12,000 megawatts of distributed renewable generation by 2020, aggressive building and appliance efficiency standards, including aggressive targets for zero net energy homes and businesses, new financing tools to incentivize widespread energy retrofits of existing buildings, development of energy storage to meet peak load demand and to provide

275

Shutdown mechanisms for a hypothetical criticality accident involving HEU powder: Preliminary results  

SciTech Connect (OSTI)

This work examines the physical processes that would cause an accidental criticality involving higly enriched uranium(HEU) powder to shut down naturally. The study analyses an excursion resulting from the continous poring of slightly damp HEU powder (either UO{sub 3} or UF{sub 4} containing 1.5% water) onto a concrete floor.

Bentley, C.; Basoglu, B.; Dunn, M.; Plaster, M.; Ruggles, A.; Wilkinson, A.; Yamamoto, T.; Dodds, H. [Univ. of Tennessee, Knoxville, TN (United States)

1994-12-31T23:59:59.000Z

276

Sinterable ceramic powders from laser heated gas phase reactions and rapidly solidified ceramic materials : annual report.  

E-Print Network [OSTI]

CO[subscript 2] lasers have been employed to heat reactant gases to synthesize Si, Si[subscript 3] N[subscript 4] and SiC powders. The powders are small, uniform in size, nonagglomerated, highly pure and of controlled ...

Haggerty, John Scarseth

1984-01-01T23:59:59.000Z

277

Characterization and Optimization of a Powder Feed Nozzle for High Deposition Laser Cladding  

E-Print Network [OSTI]

175 Characterization and Optimization of a Powder Feed Nozzle for High Deposition Laser Cladding Abstract Laser cladding is a process for depositing corrosion resistant and wear resistant materials. With high deposition rate laser cladding, a powder mass is pre-placed in front of a scanned laser beam using

Omiecinski, Curtis

278

Interaction of Groundwater and Surface Water in the Williston and Powder River Structural Basins  

E-Print Network [OSTI]

Interaction of Groundwater and Surface Water in the Williston and Powder River Structural Basins Cretaceous aquifer systems in the Williston and Powder River structural basins is currently being assessed by the U.S. Geological Survey (USGS). The Williston basin is located in parts of North Dakota, South Dakota

Torgersen, Christian

279

Cold compaction study of Armstrong Process Ti-6Al-4V powders  

SciTech Connect (OSTI)

This work investigates the cold compaction behavior of Ti-6Al-4V powders produced by Armstrong Process . As-received as well as milled powders were characterized and these powders were uniaxially die-pressed at designated pressures up to 690 MPa to form disk samples with different aspect ratios. Samples with high aspect ratio exhibited non-uniform density along the pressing axis and the density distribution is in consistent with the result predicted by finite element analysis. The linear regression analysis on the experimental density data can be used to predict density of compacts with different aspect ratios. In the studied pressure range, an empirical powder compaction equation represents the green density pressure relationship very well for both the as-received and 1-hr milled Armstrong Ti-6Al-4V powders.

Chen, Wei [ORNL; Yamamoto, Yukinori [ORNL; Peter, William H [ORNL; Gorti, Sarma B [ORNL; Sabau, Adrian S [ORNL; Clark, Michael B [ORNL; Nunn, Stephen D [ORNL; Kiggans, Jim [ORNL; Blue, Craig A [ORNL; Fuller, Brian [International Titanium Powder; Akhtar, Kamal [International Titanium Powder

2011-01-01T23:59:59.000Z

280

Causal Factors of Weld Porosity in Gas Tungsten Arc Welding of Powder Metallurgy Produced Titanium Alloys  

SciTech Connect (OSTI)

ORNL undertook an investigation using gas tungsten arc (GTA) welding on consolidated powder metallurgy (PM) titanium (Ti) plate, to identify the causal factors behind observed porosity in fusion welding. Tramp element compounds of sodium and magnesium, residual from the metallothermic reduction of titanium chloride used to produce the titanium, were remnant in the starting powder and were identified as gas forming species. PM-titanium made from revert scrap where sodium and magnesium were absent, showed fusion weld porosity, although to a lesser degree. We show that porosity was attributable to hydrogen from adsorbed water on the surface of the powders prior to consolidation. The removal / minimization of both adsorbed water on the surface of titanium powder and the residues from the reduction process prior to consolidation of titanium powders, are critical to achieve equivalent fusion welding success similar to that seen in wrought titanium produced via the Kroll process.

Muth, Thomas R [ORNL; Yamamoto, Yukinori [ORNL; Frederick, David Alan [ORNL; Contescu, Cristian I [ORNL; Chen, Wei [ORNL; Lim, Yong Chae [ORNL; Peter, William H [ORNL; Feng, Zhili [ORNL

2013-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

A model for the management of the Texas brown shrimp fishery  

E-Print Network [OSTI]

1979 Major Subject: Agricultural Economics A MODEL FOR THE MANAGEMENT OF THE TEXAS BROWN SHRIMP FISHERY A Thesis by GLENN CHARLES TYDLACKA Approved as to style and content by: (Chairman oE Commi e) pg w~ (Member) (M j) Augvst 1979 ABSTRACT... A Model for the Management of the Texas Brown Shrimp Fishery. (August 1979) Glenn Charles Tydlacka, B. S. , Texas A&M University Chairman of Advi" ory Committee: Dr. Wade L. Griffin The management of the shrimp fi-hery in Texas is an important...

Tydlacka, Glenn Charles

1979-01-01T23:59:59.000Z

282

Deterministic Time Classes Slides modified by Benny Chor, based on original slides by Maurice Herlihy, Brown University. p.1  

E-Print Network [OSTI]

Lecture 11 Deterministic Time Classes Slides modified by Benny Chor, based on original slides on Model Slides modified by Benny Chor, based on original slides by Maurice Herlihy, Brown University. ­ p Slides modified by Benny Chor, based on original slides by Maurice Herlihy, Brown University. ­ p.1 #12

Beimel, Amos

283

Reduction Involving Controlled Execution Slides modified by Benny Chor, based on original slides by Maurice Herlihy, Brown University. p.1  

E-Print Network [OSTI]

Lecture 10 Reduction Involving Controlled Execution Slides modified by Benny Chor, based on original slides by Maurice Herlihy, Brown University. ­ p.1 #12;Lecture 10 Reduction Involving Controlled Execution Rice Theorem Slides modified by Benny Chor, based on original slides by Maurice Herlihy, Brown

Beimel, Amos

284

2010 USDA Research Forum on Invasive Species GTR-NRS-P-75 87 ECONOMIC ANALYSIS OF LIGHT BROWN APPLE MOTH  

E-Print Network [OSTI]

2010 USDA Research Forum on Invasive Species GTR-NRS-P-75 87 ECONOMIC ANALYSIS OF LIGHT BROWN APPLE. Our analyses indicated that LBAM could cause substantial economic losses to U.S. apple, grape, orange an economic analysis of the light brown apple moth (LBAM), (Epiphyas postvittana (Walker)), whose presence

285

Calculation and modelling to the brown coal drying fluidized bed specialized for Greek lignite of west Macedonia  

Science Journals Connector (OSTI)

Brown coal is considered to be a competitive primary energy source for power generation in parts of Central and Eastern Europe due to the economically recoverable reserves of this fuel in these regions. Specifically for Greece lignites is the main fuel ... Keywords: brown coal, electric energy, energy source, fluidized bed, lignites

John Karmalis; Nikolaos Asimopoulos; Dimitrios Zissopoulos; Natsos Kouvatsis

2010-07-01T23:59:59.000Z

286

Limits to the potential distribution of light brown apple moth in ArizonaCalifornia based on climate suitability and host plant availability  

E-Print Network [OSTI]

503531 Dumbleton LJ (1932) The apple leaf roller (TortrixJW (1937) The light-brown apple moth (Tortrix post- vittana,distribution of light brown apple moth in ArizonaCalifornia

Gutierrez, Andrew Paul; Mills, Nicholas J.; Ponti, Luigi

2010-01-01T23:59:59.000Z

287

Rapid formation of phase-clean 110 K (Bi-2223) powders derived via freeze-drying process  

DOE Patents [OSTI]

A process for the preparation of amorphous precursor powders for Pb-doped Bi{sub 2}Sr{sub 2} Ca{sub 2}Cu{sub 3}O{sub x} (2223) includes a freeze-drying process incorporating a splat-freezing step. The process generally includes splat freezing a nitrate solution of Bi, Pb, Sr, Ca, and Cu to form flakes of the solution without any phase separation; grinding the frozen flakes to form a powder; freeze-drying the frozen powder; heating the dried powder to form a dry green precursor powders; denitrating the green-powders; heating the denitrated powders to form phase-clean Bi-2223 powders. The grain boundaries of the 2223 grains appear to be clean, leading to good intergrain contact between 2223 grains. 11 figs.

Balachandran, U.

1996-06-04T23:59:59.000Z

288

Rapid formation of phase-clean 110 K (Bi-2223) powders derived via freeze-drying process  

DOE Patents [OSTI]

A process for the preparation of amorphous precursor powders for Pb-doped Bi.sub.2 Sr.sub.2 Ca.sub.2 Cu.sub.3 O.sub.x (2223) includes a freeze-drying process incorporating a splat-freezing step. The process generally includes splat freezing a nitrate solution of Bi, Pb, Sr, Ca, and Cu to form flakes of the solution without any phase separation; grinding the frozen flakes to form a powder; freeze-drying the frozen powder; heating the dried powder to form a dry green precursor powders; denitrating the green-powders; heating the denitrated powders to form phase-clean Bi-2223 powders. The grain boundaries of the 2223 grains appear to be clean, leading to good intergrain contact between 2223 grains.

Balachandran, Uthamalingam (Hinsdale, IL)

1996-01-01T23:59:59.000Z

289

Application and modeling of near-infrared frequency domain photon migration for monitoring pharmaceutical powder blending operations  

E-Print Network [OSTI]

of blending. A simulation method was developed which consisted of (i) dynamic simulation for generating the powder structure; (ii) the completely-randommixture model for predicting the spatial distribution of API particles within the powder bed; and (iii...

Pan, Tianshu

2006-10-30T23:59:59.000Z

290

A comparison of groundwater recharge estimation methods in the Williston and Powder River structural basins in the Northern Great Plains  

E-Print Network [OSTI]

A comparison of groundwater recharge estimation methods in the Williston and Powder River-water-balance (SWB) model to estimate groundwater recharge in the Williston and Powder River structural basins

Torgersen, Christian

291

NATIONAL PRESS RELEASE I PARIS I 30 AUGUST 2013 Brown algae contain phlorotannins, aromatic (phenolic) compounds that are unique in the plant  

E-Print Network [OSTI]

NATIONAL PRESS RELEASE I PARIS I 30 AUGUST 2013 Brown algae contain phlorotannins, aromatic elucidated the key step in the production of these compounds in Ectocarpus siliculosus, a small brown alga phlorotannins from brown algae for use in industry was a complex process, and the biosynthesis pathways

Canet, Léonie

292

Genetic Bases of Estrogen-Induced Tumorigenesis in the Rat: Mapping of Loci Controlling Susceptibility to Mammary Cancer in a Brown Norway ACI Intercross  

Science Journals Connector (OSTI)

...E2-induced pyometritis in the Brown Norway rat, to RNO5. Mamm Genome...McComb RD, Shull JD. Dietary energy restriction inhibits estrogen-induced...to mammary cancer in a Brown Norway x ACI intercross. | Exposure...strain and the unrelated Brown Norway (BN) rat strain. Whereas...

Beverly S. Schaffer; Cynthia M. Lachel; Karen L. Pennington; Clare R. Murrin; Tracy E. Strecker; Martin Tochacek; Karen A. Gould; Jane L. Meza; Rodney D. McComb; and James D. Shull

2006-08-01T23:59:59.000Z

293

Process and apparatus for obtaining silicon from fluosilicic acid  

DOE Patents [OSTI]

Process for producing low cost, high purity solar grade Si wherein a reduction reaction, preferably the reduction of SiF.sub.4, by an alkali metal (liquid Na preferred) is carried out essentialy continuously by injecting of reactants in substantially stoichiometric proportions into a reaction chamber having a controlled temperature thereby to form a mist or dispersion of reactants. The reactants being supplied at such a rate and temperature that the reaction takes place far enough away from the entry region to avoid plugging of reactants at the entry region, the reaction is completed and whereby essentially all reaction product solidifies and forms a free flowing powder before reaction product hits a reaction chamber wall. Thus, the reaction product does not adhere to the reaction chamber wall or pick up impurities therefrom. Separation of reaction products is easily carried out by either a leach or melt separation process.

Sancier, Kenneth M. (Menlo Park, CA)

1985-07-16T23:59:59.000Z

294

Groundwater recharge estimates for the Powder River and Williston structural basins Katherine R. Aurand and Andrew J. Long  

E-Print Network [OSTI]

Groundwater recharge estimates for the Powder River and Williston structural basins Katherine R Cretaceous aquifer system in the Powder River and Williston structural basins. The study area covers about 75 production in the Powder River structural basin and oil production in the Williston structural basin

Torgersen, Christian

295

STATE OF CALIFORNIA --NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

/strikeout. Background The NSHP is part of a comprehensive statewide solar program known as the California Solar scheduled Energy Commission Business Meeting. The minimum guidelines for implementing California's solarSTATE OF CALIFORNIA -- NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY

296

STATE OF CALIFORNIA THE RESOURCES AGENCY EDMUND G. BROWN, JR. , Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

having been shown, the California Energy Commission hereby grants the request by AES Solar to terminateSTATE OF CALIFORNIA THE RESOURCES AGENCY EDMUND G. BROWN, JR. , Governor CALIFORNIA ENERGY COMMISSION 1516 NINTH STREET SACRAMENTO, CA 95814-5112 STATE OF CALIFORNIA ENERGY RESOURCES CONSERVATION

297

STATE OF CALIFORNIA --NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

to Proposed Revisions to the New Solar Homes Partnership Guidebook The California Energy Commission will hold1 STATE OF CALIFORNIA -- NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION 1516 Ninth Street Sacramento, California 95814 Main website: www.energy.ca.gov In the matter

298

PHENOLOGY AND BROWN-HEADED COWBIRD PARASITISM B.A., University of Colorado, 2003  

E-Print Network [OSTI]

PHENOLOGY AND BROWN-HEADED COWBIRD PARASITISM by TY TUFF B.A., University of Colorado, 2003 A thesis submitted to the Faculty of the Graduate School of the University of Colorado in partial, to evaluate the impact of parasitism on two local hosts in the Colorado Front Range: the primary host

Hammerton, James

299

A Navigation System for Robot Soccer Brett Browning, Gordon Wyeth and Ashley Tews  

E-Print Network [OSTI]

A Navigation System for Robot Soccer Brett Browning, Gordon Wyeth and Ashley Tews Computer Science describes the navigation system used for the UQ RoboRoos robot soccer team, runner up in the 1998 world RoboCup championships. The navigation system has been developed to cope with the dynamic environment of robot soccer

Browning, Brett

300

STATE OF CALIFORNIA --NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

: SERVICE ON THE CHIEF COUNSEL INSTRUCTIONS: Service of complaints/documents on the Chief Counsel EnergySTATE OF CALIFORNIA -- NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION 1516 Ninth Street Sacramento, California 95814 Main website: www.energy.ca.gov Form CEC-108

Note: This page contains sample records for the topic "brown powder obtained" 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

Reassessing U.S. nuclear weapons policy Harold Brown[1] and John Deutch[2  

E-Print Network [OSTI]

1 Reassessing U.S. nuclear weapons policy Harold Brown[1] and John Deutch[2] The end of the Cold policy objectives and risks compromising the value that nuclear weapons continue to make through. A declaratory U.S. policy of moving to eliminate nuclear weapons in a distant future will have no direct effect

Deutch, John

302

From Nash and Brown to Maynard Smith: Equilibria, Dynamics and ESS* J. HOFBAUER  

E-Print Network [OSTI]

From Nash and Brown to Maynard Smith: Equilibria, Dynamics and ESS* J. HOFBAUER Institut für that in more sophisticated models, an equilibrium satisfying the ESS conditions often re- mains stable in some sense. For example, in the stan- dard dynamic model for haploids, the replicator dy- namics, an ESS

Hofbauer, Josef

303

From Nash and Brown to Maynard Smith: Equilibria, Dynamics, and ESS  

E-Print Network [OSTI]

From Nash and Brown to Maynard Smith: Equilibria, Dynamics, and ESS Josef Hofbauer Institut f sophisticated models, an equilibrium satisfying the ESS conditions often remains stable in some sense. For example, in the standard dynamic model for haploids, the replicator dynamics, an ESS is asymptotically

Hofbauer, Josef

304

STATE OF CALIFORNIA --NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

examines a range of issues facing the state's electricity, natural gas, and transportation fuel sectorsSTATE OF CALIFORNIA -- NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY trends and develop energy policies that will "conserve resources, protect the environment, ensure energy

305

STATE OF CALIFORNIA -NATURAL RESOURCES AGENCY EDMUND G. BROWN JR.. Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

in June 2012. · Two reports on trends in natural gas markets that were published in 2012. · An assessment: · Forecasts of electricity and natural gas demand for 2012-2022 that were adopted by the Energy CommissionSTATE OF CALIFORNIA - NATURAL RESOURCES AGENCY EDMUND G. BROWN JR.. Governor CALIFORNIA ENERGY

306

THE COMET SISTERS Teacher version Used with permission from Maura Rountree-Brown  

E-Print Network [OSTI]

the Comet Sister landed in the meadow and they all greeted each other warmly, and began their celebration1 THE COMET SISTERS ­ Teacher version Used with permission from Maura Rountree-Brown This is a story about comets. Some of what I tell you is true about comets. Some of what I tell you, we think

Richardson Jr., James E.

307

NASA FOIA PUBLIC LIAISON OFFICERS and REQUESTER SERVICE CENTERS Miriam Brown-Lam  

E-Print Network [OSTI]

NASA FOIA PUBLIC LIAISON OFFICERS and REQUESTER SERVICE CENTERS Miriam Brown-Lam Principal Agency FOIA Officer Chief, NASA FOIA Public Liaison Officer (202) 358-0718 Josephine Sibley HQ FOIA Public Research Center (ARC) Lubna Shirzai ARC FOIA Public Liaison Officer NASA Ames Research Center Mail Stop 943

Waliser, Duane E.

308

Browne, CB, Research Proposal, March 2009 Activation of the Inflammasome in Gout  

E-Print Network [OSTI]

Browne, CB, Research Proposal, March 2009 1 Activation of the Inflammasome in Gout Background Gout. The overall prevalence of gout in the U.S. was determined to be 41 in 1000 (1). Men are at a higher risk than women for gout, and the risk increases with age for both males and females (1). The initiation

Gleeson, Joseph G.

309

STATE OF CALIFORNIA --NATURAL RESOURCES AGENCY EDMUND G BROWN, JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

projects that have been awarded funding, and discusses expected results in terms of jobs, energy savingsSTATE OF CALIFORNIA -- NATURAL RESOURCES AGENCY EDMUND G BROWN, JR., Governor CALIFORNIA ENERGY COMMISSION 1516 Ninth Street Sacramento, California 95814 Main website: www.energy.ca.gov Notice

310

Light brown apple moth Epiphyas postvittana Michigan State University's invasive species factsheets  

E-Print Network [OSTI]

shelters. Older larvae may create nests by folding or webbing leaves, buds and fruits together where-11 mm long; pale to dark brown; can be found in leaves that are spun together. Eggs : About 1 mm (folded leaves or leaves, buds and fruits webbed together). Superficial fruit damage; point-like holes

311

Civil and Environmental Engineering The George R. Brown School of Engineering  

E-Print Network [OSTI]

, geotechnical engineering, structural engineer- ing and mechanics, hydrology, water resources and water quality engineering (air and water quality, transport theory and modeling),(2) Hydrology and water resources124 Civil and Environmental Engineering The George R. Brown School of Engineering CHAIR Herb Ward

Richards-Kortum, Rebecca

312

Satisficing measures for analysis of risky positions David B. Brown and Melvyn Sim*  

E-Print Network [OSTI]

Satisficing measures for analysis of risky positions David B. Brown and Melvyn Sim* RMI Working Paper No. 08/07 Submitted: April 8, 2008 Abstract In this work we consider a class of measures desired financial goals. In the spirit of Simon [23], we call these measures satisficing measures and show

Chaudhuri, Sanjay

313

STATE OF CALIFORNIA -NATURAL RESOURCES AGENCY EDMUND G. BROWN JR. Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

STATE OF CALIFORNIA - NATURAL RESOURCES AGENCY EDMUND G. BROWN JR.· Governor CALIFORNIA ENERGY of the combustion gas turbines units in an extended start-up period for the purpose of tuning the units following combustors shall not exceed the following limits, except during times of startup or shutdown, as defined

314

STATE OF CALIFORNIA --NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

(RNS), and is based on the amount of current electric generation from renewable resources) that is generated from renewable generation resources instead of the capacity (megawatt ­ MW) of these facilitiesSTATE OF CALIFORNIA -- NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY

315

Towards smart storage for repository preservation services Steve Hitchcock, David Tarrant, Adrian Brown1  

E-Print Network [OSTI]

OX2 0EW, UK {Benjamin.Osteen, neil.jefferies}@sers.ox.ac.uk Abstract The move to digital is being Brown1 , Ben O'Steen2 , Neil Jefferies2 and Leslie Carr IAM Group, School of Electronics and Computer

Southampton, University of

316

STATE OF CALIFORNIA --NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

of the California Solar Initiative, a comprehensive statewide solar program. The NSHP provides rebates to encourage of the NSHP is to install 400 MW of solar electric capacity on new homes and residential buildings by the endSTATE OF CALIFORNIA -- NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY

317

STATE OF CALIFORNIA NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

Award Score Score Status 1 CaliSolar, Inc. Manufacturing Capacity Expansion from 60 MW to 155 MW $5 SV Green Tech Corp. Expansion of Solar Panel Manufacturing in California $4,948,000 $0 61 Finalist 12STATE OF CALIFORNIA ­ NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY

318

STATE OF CALIFORNIA NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

STATE OF CALIFORNIA ­ NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY a containment structure that would be located between the solar fields of SEGS VIII and SEGS IX, for the storage STAFF REVIEW AND DETERMINATION Pursuant to section 1769(a)(2), Title 20, California Code of Regulations

319

Dipole trapped spheromak in a prolate flux conserver M. R. Brown,a  

E-Print Network [OSTI]

Dipole trapped spheromak in a prolate flux conserver M. R. Brown,a C. D. Cothran, J. Fung, M. Chang reports the observation and characterization of a spheromak formed in the Swarthmore Spheromak Experiment. The spheromak is studied in a prolate tilt unstable 0.4 m diameter, 0.6 m length copper flux conserver in SSX

Brown, Michael R.

320

The George R. Brown School of Engineering Degrees Offered: BA, MStat, MA, PhD  

E-Print Network [OSTI]

Probability and Statistics · STAT405 Statistical Computing and Graphics · STAT410Introduction to Statistical1 Statistics The George R. Brown School of Engineering Degrees Offered: BA, MStat, MA, PhD Course work in statistics acquaints students with the role played in the modern world by probabilistic

Richards-Kortum, Rebecca

Note: This page contains sample records for the topic "brown powder obtained" 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

The George R. Brown School of Engineering Degrees Offered: BA, MStat, MA, PhD  

E-Print Network [OSTI]

Introduction to Engineering Computation · STAT 310 Probability and Statistics · STAT 410 Introduction246 Statistics The George R. Brown School of Engineering Degrees Offered: BA, MStat, MA, PhD Course work in statistics acquaints students with the role played in the modern world by probabilistic

Richards-Kortum, Rebecca

322

The George R. Brown School of Engineering Degrees Offered: BA, MStat, MA, PhD  

E-Print Network [OSTI]

Introduction to Engineering Computation · STAT 310 Probability and Statistics · STAT 410 Introduction253 Statistics The George R. Brown School of Engineering Degrees Offered: BA, MStat, MA, PhD Course work in statistics acquaints students with the role played in the modern world by probabilistic

Richards-Kortum, Rebecca

323

Friction in Mid-latitude Bob Plant, Stephen Belcher, Bob Beare, Andy Brown  

E-Print Network [OSTI]

Friction in Mid-latitude Cyclones Ian Boutle Bob Plant, Stephen Belcher, Bob Beare, Andy Brown #12;Motivation · Many studies have shown the significance of friction in formation and dissipation of cyclones Dt = + ? . F . Diabatic Term: · Surface heat fluxes · Latent heat fluxes Frictional Term

Plant, Robert

324

Electrical and Computer Engineering The George R. Brown School of Engineering  

E-Print Network [OSTI]

160 Electrical and Computer Engineering The George R. Brown School of Engineering CHAIR Behnaam Offered: BA, BSEE, MEE, MS, PhD The electrical and computer engineering department strives to provide high for roles of leadership in their chosen careers. In support of this goal, the electrical and computer

Richards-Kortum, Rebecca

325

Abbott, Albert G., Professor, Genetics and Biochemistry. BS, University of Connecticut, 1976; PhD, Brown  

E-Print Network [OSTI]

of Connecticut, 1976; PhD, Brown University, 1980 Abbott, Sherrie Wilder, Lecturer, School of Nursing. BSN, Emory, 1975, MA, 1978, PhD, 1983, University of Connecticut Alley, Thomas R., Professor, Psychology. BA, 1975, BS, 1975, Pennsylvania State University; MA, 1979, PhD, 1981, University of Connecticut Allison

Stuart, Steven J.

326

SPECTRA OF TUKEY TYPES OF ULTRAFILTERS ON BOOLEAN JENNIFER A. BROWN AND NATASHA DOBRINEN  

E-Print Network [OSTI]

SPECTRA OF TUKEY TYPES OF ULTRAFILTERS ON BOOLEAN ALGEBRAS JENNIFER A. BROWN AND NATASHA DOBRINEN Abstract. Extending recent investigations on the structure of Tukey types of ultrafilters on P() to Boolean algebras in general, we classify the spectra of Tukey types of ultrafilters for several classes of Boolean

Dobrinen, Natasha

327

Spectra of Tukey types of ultrafilters on Boolean algebras Jennifer A. Brown and Natasha Dobrinen  

E-Print Network [OSTI]

Spectra of Tukey types of ultrafilters on Boolean algebras Jennifer A. Brown and Natasha Dobrinen Abstract. Extending recent investigations on the structure of Tukey types of ul- trafilters on P() to Boolean algebras in general, we classify the spectra of Tukey types of ultrafilters for several classes

Dobrinen, Natasha

328

SPECTRA OF TUKEY TYPES OF ULTRAFILTERS ON BOOLEAN JENNIFER BROWN AND NATASHA DOBRINEN  

E-Print Network [OSTI]

SPECTRA OF TUKEY TYPES OF ULTRAFILTERS ON BOOLEAN ALGEBRAS JENNIFER BROWN AND NATASHA DOBRINEN Abstract. Extending recent investigations on the structure of Tukey types of ultrafilters on P() to Boolean algebras in general, we classify the spectra of Tukey types of ultrafilters for several classes of Boolean

Dobrinen, Natasha

329

STATE OF CALIFORNIA --NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

, a reasonable assumption must be made about how much energy is lost due to electrical resistanceSTATE OF CALIFORNIA -- NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION 1516 Ninth Street Sacramento, California 95814 Main website: www.energy.ca.gov Notice

330

STATE OF CALIFORNIA NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

,815 90.3% Awardee 16 Great Valley Energy, LLC Feasibility of Fractionated Ethanol and Products SweetSTATE OF CALIFORNIA ­ NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION 1516 NINTH STREET SACRAMENTO, CA 95814-5512 www.energy.ca.gov REVISED NOTICE OF PROPOSED AWARD

331

Hot Dry Rock Geothermal Energy Development in the USA David Duchane and Donald Brown  

E-Print Network [OSTI]

1 Hot Dry Rock Geothermal Energy Development in the USA by David Duchane and Donald Brown Los of the world's store of geothermal energy. The real potential for growth in the use of geothermal energy lies system. Water is circulated around a closed loop to extract thermal energy from an engineered geothermal

332

STATE OF CALIFORNIA NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

cooking equipment, advanced HVAC and envelopes; solar water heating; indoor air quality; and other/wastewater treatment process improvements; irrigation sensor and control improvements; indoor air quality; and otherSTATE OF CALIFORNIA ­ NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY

333

STATE OF CALIFORNIA --NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

STATE OF CALIFORNIA -- NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY of the Design of the New Solar Homes Partnership ___________________________________ ) ) ) ) ) Docket No. 06-NSHP-1 NOTICE OF BUSINESS MEETING RE: Revision of the New Solar Homes Partnership Guidebook Notice

334

STATE OF CALIFORNIA-NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

STATE OF CALIFORNIA- NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY APPLICANT RESPONDENT Docket No. 11-CAI-03 PROOF OF SERVICE (Origina/7/27/11), Solar Point Resources P Counsel (916) 654-3951 jamarting@energy.state.ca.us (916) 654-3951 Enclosure: Proof of Service DATE AUG

335

STATE OF CALIFORNIA --NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

STATE OF CALIFORNIA -- NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION 1516 Ninth Street Sacramento, California 95814 Main website: www.energy.ca.gov New Solar Homes in accordance with the California Energy Commission's New Solar Homes Partnership Guidebook, Third Edition

336

STATE OF CALIFORNIA THE RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

STATE OF CALIFORNIA ­ THE RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY FOR ELIGIBLE SOLAR EQUIPMENT LISTS RFP-13-401 Proposed Contractor: Alternative Energy Systems Consulting, Inc Alternative Energy Systems Consulting, Inc. (AESC) $117.96 DNV KEMA $178.28 Resource Engineering Group, Inc

337

STATE OF CALIFORNIA NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION  

E-Print Network [OSTI]

/or under- utilized technologies to increase natural gas end-use efficiency in California's industrial* Benz Air Engineering, Co., Inc. High Efficiency Natural Gas Reciprocating Engine Boiler $2STATE OF CALIFORNIA ­ NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY

338

Minimax design of vibration absorbers for linear damped systems Brandon Brown, Tarunraj Singh  

E-Print Network [OSTI]

Minimax design of vibration absorbers for linear damped systems Brandon Brown, Tarunraj Singh ? addresses the issue of design of a passive vibration absorber in the presence of uncertainties in the forcing frequency. A minimax problem is formulated to determine the parameters of a vibration absorber

Singh, Tarunraj

339

The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer (WISE)  

E-Print Network [OSTI]

We present ground-based spectroscopic verification of 6 Y dwarfs (see also Cushing et al.), 89 T dwarfs, 8 L dwarfs, and 1 M dwarf identified by the Wide-field Infrared Survey Explorer (WISE). Eighty of these are cold brown ...

Bochanski, John J.

340

BENEFITS OF LIVING IN A BUILDING: BIG BROWN BATS (EPTESICUS FUSCUS) IN ROCKS VERSUS BUILDINGS  

E-Print Network [OSTI]

BENEFITS OF LIVING IN A BUILDING: BIG BROWN BATS (EPTESICUS FUSCUS) IN ROCKS VERSUS BUILDINGS CORI) roosting in natural and building roosts in the prairies of southeastern Alberta. During pregnancy, bats roosting in buildings used torpor less frequently than did rock- roosting bats, but achieved lower body

Barclay, Robert

Note: This page contains sample records for the topic "brown powder obtained" 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

Paleotopography and hydrocarbon accumulation: Williston, Powder River, and Denver basins  

SciTech Connect (OSTI)

Recent geomorphic analyses of 1:24,000 scale topographic maps in the three major basins of the northern Great Plains have disclosed a persistent system of basement paleotopographic features that trend north-northeast throughout the region. Superimposed across this system and subtly influenced by it, are the northwesterly trending Laramide structural features. Paleozoic depositional patterns have been strongly influenced by the paleoridge and trough system formed by the north-northeast features. Mesozoic deposition has also been affected by the ancient subsurface system but in a more subtle manner. Many of the Paleozoic and Mezoxoic hydrocarbon locations in the three basins appear to be the results of paleotopographic control on hydrocarbon accumulation sites. This affect ranges from Paleozoic reef sites in the Williston basin through paleotrough localization of Pennsylvanian Minnelusa production in the Powder River basin to fractured Cretaceous Niobrara production at the Silo field in the Denver basin. Basement paleotopography is the underlying factor in all deposition and subsequent hydrocarbon migration in any basin. As such, it should be considered a major factor in the exploration for oil and gas.

Thomas, G.E. (Thomas and Associates, Denver, CO (United States))

1991-06-01T23:59:59.000Z

342

Parametric analysis of thermal behavior during selective laser melting additive manufacturing of aluminum alloy powder  

Science Journals Connector (OSTI)

Abstract Simulation of temperature fields during selective laser melting (SLM) additive manufacturing of AlSi10Mg powder was performed using the finite element method (FEM). The effects of laser power and scan speed on the SLM thermal behavior were investigated. It showed that the cooling rate of the molten pool elevated slightly from 2.13נ106C/s to 2.97נ106C/s as the laser power increased from 150W to 300W, but it enhanced significantly from 1.25נ106C/s to 6.17נ106C/s as the scan speed increased from 100mm/s to 400mm/s. The combination of a low laser power (200W) and a high scan speed (400mm/s) yielded a low temperature (1059C) and an extremely short liquid lifetime (0.19ms), resulting in the poor wettability and occurrence of micropores in SLM-produced parts. The temperature gradient along the depth direction of the molten pool increased considerably from 10.6C/?m to 21.7C/?m as the laser power elevated from 150W to 300W, while it decreased slightly from 14.9C/?m to 13.5C/?m as the scan speed increased from 100mm/s to 400mm/s. The proper molten pool width (111.4?m) and depth (67.5?m) were obtained for a successful SLM process using the laser power of 250W and scan speed of 200mm/s. SLM of AlSi10Mg powder was also experimentally performed using different laser processing conditions and the microstructures of the SLM-fabricated samples were investigated to verify the reliability of the physical model. A sound metallurgical bonding between the neighboring fully dense layers was achieved at laser power of 250W and scan speed of 200mm/s, due to the larger molten pool depth (67.5?m) as relative to the layer thickness (50?m).

Yali Li; Dongdong Gu

2014-01-01T23:59:59.000Z

343

EXPERIMENTS WITH POWDERED CMN THERMOMETERS BETWEEN 10 mK AND 4K, AND A COMPARISON WITH AN NBS SRM 768 FIXED POINT DEVICE  

E-Print Network [OSTI]

EXPERIMENTS WITH POWDERED CMN THERMOMETERS BETWEEN 10 mK ANDof a powdered CHN thermometer with an NBS fixed point devicesuperficially similar CMN thermometers is also presented. c

Fogle, W.E.

2010-01-01T23:59:59.000Z

344

Silane Modification of Glass and Silica Surfaces to Obtain Equally...  

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

Silane Modification of Glass and Silica Surfaces to Obtain Equally Oil-Wet Surfaces in Glass-Covered Silicon Micromodel Silane Modification of Glass and Silica Surfaces to Obtain...

345

In{sub 2}O{sub 3} microcrystals obtained from rapid calcination in domestic microwave oven  

SciTech Connect (OSTI)

The simple way to prepare In{sub 2}O{sub 3} microcrystals is reported in this paper. The precursor, In(OH){sub 3} microstructures, were obtained using the Microwave-Assisted Hydrothermal (MAH) Method. By annealing as-prepared In(OH){sub 3} precursor at 500 {sup o}C for 5 min in a domestic microwave oven (MO), In{sub 2}O{sub 3} microcrystals were prepared, inheriting the morphology of their precursor while still slightly distorted and collapsed due to the In(OH){sub 3} dehydration process which was studied by thermal analysis. The In(OH){sub 3} and In{sub 2}O{sub 3} were characterized using powder X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and Raman spectroscopy. These techniques confirm the chemical dehydration of In(OH){sub 3} and the formation of In{sub 2}O{sub 3} powders. The domestic MO promotes a rapid structural organization as compared with a CF (conventional furnace). The MAH method and the subsequent annealing in a domestic MO were shown to be a low cost route for the production of In{sub 2}O{sub 3}, with the advantages of lower temperature and smaller time.

Motta, F.V., E-mail: fabiana@liec.ufscar.br [LIEC, IQ, UNESP, Rua Francisco Degni s/n, CEP 14801-907 Araraquara, SP (Brazil); Lima, R.C. [IQ, UFU, Av. Joao Naves de Avila, 2121, CEP 38400-902 Uberlandia, MG (Brazil)] [IQ, UFU, Av. Joao Naves de Avila, 2121, CEP 38400-902 Uberlandia, MG (Brazil); Marques, A.P.A.; Leite, E.R. [LIEC, DQ, UFSCar, Via Washington Luiz, km 235, CEP 13565-905 Sao Carlos, SP (Brazil)] [LIEC, DQ, UFSCar, Via Washington Luiz, km 235, CEP 13565-905 Sao Carlos, SP (Brazil); Varela, J.A.; Longo, E. [LIEC, IQ, UNESP, Rua Francisco Degni s/n, CEP 14801-907 Araraquara, SP (Brazil)] [LIEC, IQ, UNESP, Rua Francisco Degni s/n, CEP 14801-907 Araraquara, SP (Brazil)

2010-11-15T23:59:59.000Z

346

DOE - Office of Legacy Management -- Tyson Valley Powder Farm - MO 11  

Office of Legacy Management (LM)

Tyson Valley Powder Farm - MO 11 Tyson Valley Powder Farm - MO 11 FUSRAP Considered Sites Site: TYSON VALLEY POWDER FARM (MO.11) Eliminated from further consideration under FUSRAP Designated Name: Not Designated Alternate Name: None Location: St. Louis County , Missouri MO.11-1 Evaluation Year: 1987 MO.11-2 Site Operations: Storage of C-Special material (residue from production of uranium metal). MO.11-1 MO.11-2 MO.11-3 Site Disposition: Eliminated - Referred to Army Corps of Engineers MO.11-2 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium MO.11-3 Radiological Survey(s): None Indicated Site Status: Eliminated from further consideration under FUSRAP Also see Documents Related to TYSON VALLEY POWDER FARM MO.11-1 - Letter; Dickenson to Duff; Subject: Granted continued use

347

Carbon Nanotubes from Oxide Solid Solution: A Way to Composite Powders, Composite Materials and Isolated Nanotubes  

Science Journals Connector (OSTI)

We have demonstrated the ability to prepare CNTS-metal-oxide powders that contain enormous amounts of CNTs..., most of which are SWNTs or small MWNTs with internal and external diameters in the 0.5-5 nm range. Th...

Christophe Laurent; Alain Peigney; Emmanuel Flahaut

2002-01-01T23:59:59.000Z

348

Alkali Separation in Steam Injected Cyclone Wood Powder Gasifier for Gas Turbine Application  

Science Journals Connector (OSTI)

Cyclone gasification of wood powder at atmospheric pressure has been studied. The cyclone gasifier works as a particle separator as well ... cyclone with air or air/steam as transport medium. The effects of stoch...

C. Fredriksson; B. Kjellstrm

1997-01-01T23:59:59.000Z

349

Resuspension of Powders and Deposition of Aerosol Particles in the Upper Human Airways  

Science Journals Connector (OSTI)

Aerosols for therapy are produced by ultrasonic nebulizers, pneumatic nebulizers, pressurized metered dose inhalers (pMDI) and dry powder inhalers (DPI). Each method of generation has its own characteristic wi...

Prof. Leon Grado?; Dr Tomasz R. Sosnowski

2003-01-01T23:59:59.000Z

350

Transformation of Surface Oxides during Vacuum Heat Treatment of a Powder Metallurgical Hot Work Tool Steel.  

E-Print Network [OSTI]

??Characteristics of surface oxide in case of gas atomized Hot Work Tool Steel powder X40CrMoV5-1 in asatomized condition and after heat treatment at different temperatures (more)

Brust, Sebastian

2013-01-01T23:59:59.000Z

351

The hybrid big bang-big crunch method for solving crystal structure from powder diffraction data  

Science Journals Connector (OSTI)

The big bang-big crunch optimization method has been revised, combined with the simulated annealing technique and implemented in the latest version of the EXPO program for solving crystal structure from powder diffraction data.

Altomare, A.

2013-05-15T23:59:59.000Z

352

Temperature and TimeResolved XRay Powder Diffraction X14A EERE sponsored PRT beamline  

E-Print Network [OSTI]

Temperature and TimeResolved XRay Powder Diffraction X14A EERE sponsored PRT beamline Objective, in ambience or with gas flow Capabilities: X14A, EERE-sponsored PRT beamline · High photon flux: typically 9x

Ohta, Shigemi

353

Effects of TiCl4 Purity on the Sinterability of Armstrong-Processed Ti Powder  

SciTech Connect (OSTI)

A series of high purity and low purity powders were synthesized from TiCl4 by the Armstrong process. While both powders displayed swelling when consolidated and sintered, the lower purity powder exhibited this phenomenon in significantly lower degree. The improvement is attributed to the increase in the onset of sintering temperature, which mitigates the entrapment of volatile impurities that would otherwise lead to pore formation and growth. The net effect is that the use of a lower purity TiCl4 may beneficial in two ways: (1) it is a potentially lower cost precursor to Ti powder production and (2) the trace impurities allow higher density components to be fabricated via a typical low-cost press and sinter approach.

Weil, K. Scott; Hovanski, Yuri; Lavender, Curt A.

2009-04-03T23:59:59.000Z

354

Hydrocarbon trapping mechanisms in the Miller Creek area of the Powder River Basin, Wyoming  

E-Print Network [OSTI]

'' 1975 43'W'79 ABSTRACT Hydrocarbon Trapoing Mechanisms in the Miller Creek Area of the Powder River Basin, Wyoming. (May 1975) Jennifer Ann Armstrong, B. S. , University of Texas at Austin Chairman of Advisory Committee: 17r. Robert. R. Berg...

Armstrong, Jennifer Ann

1975-01-01T23:59:59.000Z

355

Clogging and Lump Formation During Atmospheric Plasma Spraying with Powder Injection Downstream the Plasma Gun  

Science Journals Connector (OSTI)

This study aimed to numerically and experimentally investigate lump formation during atmospheric plasma spraying with powder injection downstream the plasma gun exit. A first set of investigations...2-7wt.%Y2O3.....

Isabelle Choquet; Stefan Bjrklund; Jimmy Johansson

2007-12-01T23:59:59.000Z

356

On Consolidation of an Aerated Fine Powder 1 Kristy A. Coffey  

E-Print Network [OSTI]

: bunker Z R dz H(t) top surface In many applications, fine powders are stored in bunkers or silos and it will settle. The geometry here is that of a conical bunker. The container is assumed to be axisymmetric

357

Electricity from wood powder report on a TPV generator in progress  

SciTech Connect (OSTI)

A joint project between NREL, SLU, and UCFB aims at building a wood powder fueled TPV generator. The progress of the project is presented. {copyright} {ital 1996 American Institute of Physics.}

Broman, L.; Jarefors, K. [Solar Energy Research Center (SERC), University College of Falun Borlange (UCFB), Box 10044, S-781 10 Borlange (Sweden); Marks, J. [Department of Operational Efficiency, Swedish University of Agricultural Sciences (SLU), Herrgardsv 122, S-776 98 Garpenberg (Sweden); Wanlass, M. [National Renewable Energy Laboratory (NREL), 1617 Cole Blvd., Golden, Colorado 80401-3393, United States of America

1996-02-01T23:59:59.000Z

358

Design and Operation of a Circulating Fluidized Bed Gasifier for Wood Powders  

Science Journals Connector (OSTI)

This paper introduces a circulating fluidized bed gasifier (CFBG) with a diameter of 410mm,...2...h for wood powders. The CFBG has been operated in Press Wood Products factory, utilizing its wastes, for more than...

Xu Bingyan; Wu Jiagzhi; Luo Zengfen

1993-01-01T23:59:59.000Z

359

High-energy ultrafine metal powders in the manufacture of ceramic materials  

Science Journals Connector (OSTI)

The addition of metal, powders produced by electric-pulse sputtering is examined as a possible way to activate sintering of conventional and plasma-chemical oxide systems. Since the metal particles have an ext...

T. A. Khabas

1997-12-01T23:59:59.000Z

360

Attenuation of laser power of a focused Gaussian beam during interaction between a laser and powder in coaxial laser cladding  

Science Journals Connector (OSTI)

The power of a focused laser beam with a Gaussian intensity profile attenuated by powder in coaxial laser cladding is investigated experimentally and theoretically, and its resolution model is developed. With some assumptions, it is concluded that the attenuation of laser power is an exponential function and is determined by the powder feed rate, particle moving speed, spraying angles and waist positions and diameters of the laser beam and powder flow, grain diameter and run of the laser beam through the powder flow. The attenuation of laser power increases with powder feed rate or run of laser beam through the powder flow. In the experiment presented, 300?W laser power from a focused Gaussian beam is attenuated by a coaxial powder flow. The experimental results agree well with the values calculated with the developed model.

Jichang Liu; Lijun Li; Yuanzhong Zhang; Xiaozhu Xie

2005-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

Controlling microstructure of nanocrystalline thermoelectrics through powder processing  

E-Print Network [OSTI]

Bismuth Telluride and its solid solutions are currently front running thermoelectric materials because of their high figure of merit. When processed via mechanical alloying to obtain nanocrystalline structures, their ...

Humphry-Baker, Samuel A

2014-01-01T23:59:59.000Z

362

Combustion characteristics of dry coal-powder-fueled adiabatic diesel engine: Final report  

SciTech Connect (OSTI)

This report describes the progress and findings of a research program aimed at investigating the combustion characteristics of dry coal powder fueled diesel engine. During this program, significant achievements were made in overcoming many problems facing the coal-powder-fueled engine. The Thermal Ignition Combustion System (TICS) concept was used to enhance the combustion of coal powder fuel. The major coal-fueled engine test results and accomplishments are as follows: design, fabrication and engine testing of improved coal feed system for fumigation of coal powder to the intake air; design, fabrication and engine testing of the TICS chamber made from a superalloy material (Hastelloy X); design, fabrication and engine testing of wear resistant chrome oxide ceramic coated piston rings and cylinder liner; lubrication system was improved to separate coal particles from the contaminated lubricating oil; control of the ignition timing of fumigated coal powder by utilizing exhaust gas recirculation (EGR) and variable TICS chamber temperature; coal-fueled engine testing was conducted in two configurations: dual fuel (with diesel pilot) and 100% coal-fueled engine without diesel pilot or heated intake air; cold starting of the 100% coal-powder-fueled engine with a glow plug; and coal-fueled-engine was operated from 800 to 1800 rpm speed and idle to full load engine conditions.

Kakwani, R.M.; Kamo, R.

1989-01-01T23:59:59.000Z

363

Brown University is an Ivy League school that competes for today's brightest students and faculty. Biomedical Engineering at Brown creates new knowledge and improves human health through cross-disciplinary research  

E-Print Network [OSTI]

. Biomedical Engineering at Brown creates new knowledge and improves human health through cross, Biomechanics/Motion Sciences, Biosensing and Biomolecular Engineering, Biomaterials, and Biomedical device, mentoring the new generation of leaders in biomedical engineering, strong interest in undergraduate

Adams, Mark

364

Lab obtains approval to begin design on new radioactive waste...  

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

New radioactive waste staging facility Lab obtains approval to begin design on new radioactive waste staging facility The 4-acre complex will include multiple staging buildings...

365

Environmental Assessment for the Partial Funding of a Proposed Life Sciences Building at Brown University, Providence, Rhode Island  

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

Environmental Assessment for the Partial Funding of a Environmental Assessment for the Partial Funding of a Proposed Life Sciences Building at Brown University, Providence, Rhode Island FINAL July 2003 National Aeronautics and Space Administration Washington, D.C. 20546-0001 U.S. Department of Energy, Chicago Operations Office Argonne, Illinois 60439 Environmental Assessment for the Partial Funding of a Proposed Life Sciences Building at Brown University, Providence, Rhode Island Environmental Assessment for the Partial Funding of a Proposed Life Sciences Building at Brown University, Providence, Rhode Island FINAL Lead Agency: National Aeronautics and Space Administration Cooperating Agency: U.S. Department of Energy Proposed Action: Partial funding for a new Life Sciences Building at Brown

366

Thermodynamic evaluation of the compounds of gold, silver, and other trace elements formed upon the combustion of brown coal  

Science Journals Connector (OSTI)

The thermodynamically most probable main compounds of Ag, Au, Ge, Se, Sr, U, and ash-forming elements formed upon the combustion of brown coal, which was close in the composition of organic and mineral matter ...

M. Ya. Shpirt; A. A. Lavrinenko; I. N. Kuznetsova

2013-09-01T23:59:59.000Z

367

Facies architecture of the upper Calvert Bluff Formation exposed in the highwall of Big Brown Mine, Fairfield, Texas  

E-Print Network [OSTI]

of Big Brown Mine, near Fairfield, Texas. Observed bedding and facies architecture are interpreted in terms of temporal changes, depositional environments and sequence stratigraphic setting. A three dimensional grid of 89 subsurface logs is correlated...

Sturdy, Michael Dale

2006-10-30T23:59:59.000Z

368

OBTAINING LAWS OF THERMODYNAMICS FOR IDEAL GASES USING ELASTIC COLLISIONS  

E-Print Network [OSTI]

OBTAINING LAWS OF THERMODYNAMICS FOR IDEAL GASES USING ELASTIC COLLISIONS STEPHEN MONTGOMERY law of expansion of ideal gases. 1. The Second Law of Thermodynamics A thermally isolated container-SMITH AND HANNAH MORGAN Abstract. The purpose of this note is to see to what extent ideal gas laws can be obtained

Montgomery-Smith, Stephen

369

Microsoft PowerPoint - Brown_Idaho on Renewable Energy.ppt  

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

Policy Options for Policy Options for Renewable Energy Matthew H. Brown Energy Program Director National Conference of State Legislatures matthew.brown@ncsl.org September 2003 Organization The Idaho context Policies for Idaho to consider The Importance of This Committee In general, other bodies of government like the PUC will wait for direction from the legislature on what to do, especially with renewables. The legislature's decisions are critical. Idaho Power Generation Despite the fact that Idaho generation is overwhelmingly hydro, retail power rates have fluctuated considerably in the past five years. This has happened in large part because Idaho utilities have needed to purchase power from more volatile regional power markets. Natural gas prices drive many of these markets.

370

Expect the unexpected: non-equilibrium processes in brown dwarf atmospheres  

E-Print Network [OSTI]

Brown Dwarf atmosphere are a chemically extremely rich, one example being the formation of clouds driven by the phase-non-equilibrium of the atmospheric gas. Cloud formation modelling is an integral part of any atmosphere simulation used to interpret spectral observations of ultra-cool objects and to determine fundamental parameters like log(g) and Teff. This proceeding to the workshop 'GAIA and the Unseen: The Brown Dwarf Question' first summarizes what a model atmosphere simulation is, and then advocates two ideas: A) The use of a multitude of model families to determine fundamental parameters with realistic confidence interval. B) To keep an eye on the unexpected, like for example, ionisation signatures resulting plasma processes

Helling, Christiane

2014-01-01T23:59:59.000Z

371

STATE OF CALIFORNIA - THE NATURAL RESOURCES AGENCY EDMUND G. BROWN, JR., Governor  

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

THE NATURAL RESOURCES AGENCY EDMUND G. BROWN, JR., Governor THE NATURAL RESOURCES AGENCY EDMUND G. BROWN, JR., Governor CALIFORNIA ENERGY COMMISSION 1516 Ninth Street, MS 14 Sacramento, California 95814 Main website: www.energy.ca.gov January 12, 2011 United States Department of Energy (DOE) Via e-mail: expartecommunications@hq.doe.gov RE: Ex parte communication of the California Energy Commission Docket No. EERE-2008-BT-STD-0005 To Whom It May Concern, On January 6, 2011, Mike Leaon, Harinder Singh, Ken Rider, and Dennis Beck of the California Energy Commission (CEC) had a telephone conversation with Victor Petrolati of DOE regarding the above referenced proceeding, concerning energy conservation standards for battery chargers and Class A external power supplies. The purpose of the meeting was for CEC and DOE staff to update each other on the

372

Characterization and thermal behavior of PrMO{sub 3} (M = Co or Ni) ceramic materials obtained from gelatin  

SciTech Connect (OSTI)

Graphical abstract: The micrograph in figure shows sample calcined at temperature 900 C. The sample exhibits morphology with considerable porosity and the formation of agglomerated nanometric particles. Gelatin provides the system with a large amount of organic matter, which is then removed during calcinations, favoring the appearance of pores in the material. Highlights: ? Oxides with PrNiO{sub 3} and PrCoO{sub 3} were prepared by new method synthesis. ? The gelatin, through its carboxylate groups and amine, is an efficient director. ? The obtained materials have magnetic properties and application in catalysis. ? The decomposition kinetic study of bonding groups of gelatin with metallic ions that takes part in the synthesis of PrMO{sub 3}. -- Abstract: Metal oxides with perovskite-type structure have attracted considerable interest in recent years due to their magnetic and electrical properties, as well as their catalytic activity. In this study, oxides with PrNiO{sub 3} and PrCoO{sub 3} composition were prepared by using gelatin powder as a precursor agent for its use as a catalyst. The powders obtained were calcined at 700 C and 900 C and characterized using the X-ray diffraction, thermal analysis (thermogravimetry and differential thermal analysis), infrared spectroscopy, temperature programed reduction and scanning electron microscopy techniques. Thermogravimetric data using the non-isothermal kinetic models of Flynn and Wall and Model-free Kinetics were used to determine the activation energy to study the decomposition kinetics of the ligand groups with system's metallic ions that takes part in the synthesis of PrMO{sub 3} (M = Ni or Co).

Aquino, F.M., E-mail: flavyma@hotmail.com [Federal University of Rio Grande of Norte, Laboratory of Catalysis and Refining NUPRAR, Av. Senador Salgado Filho, 3000, CEP 59078-970, Natal-RN (Brazil); Melo, D.M.A. [Federal University of Rio Grande of Norte, Laboratory of Catalysis and Refining NUPRAR, Av. Senador Salgado Filho, 3000, CEP 59078-970, Natal-RN (Brazil)] [Federal University of Rio Grande of Norte, Laboratory of Catalysis and Refining NUPRAR, Av. Senador Salgado Filho, 3000, CEP 59078-970, Natal-RN (Brazil); Pimentel, P.M. [Universidade Federal Rural do Semi-rido, Campus Angicos, CEP 59515-000, Angicos-RN (Brazil)] [Universidade Federal Rural do Semi-rido, Campus Angicos, CEP 59515-000, Angicos-RN (Brazil); Braga, R.M.; Melo, M.A.F.; Martinelli, A.E.; Costa, A.F. [Federal University of Rio Grande of Norte, Laboratory of Catalysis and Refining NUPRAR, Av. Senador Salgado Filho, 3000, CEP 59078-970, Natal-RN (Brazil)] [Federal University of Rio Grande of Norte, Laboratory of Catalysis and Refining NUPRAR, Av. Senador Salgado Filho, 3000, CEP 59078-970, Natal-RN (Brazil)

2012-09-15T23:59:59.000Z

373

SUBSTELLAR OBJECTS IN NEARBY YOUNG CLUSTERS (SONYC). V. NEW BROWN DWARFS IN {rho} OPHIUCHI  

SciTech Connect (OSTI)

SONYC-Substellar Objects in Nearby Young Clusters-is a survey program to investigate the frequency and properties of substellar objects with masses down to a few times that of Jupiter in nearby star-forming regions. For the {approx}1 Myr old {rho} Ophiuchi cluster, in our earlier paper we reported deep, wide-field optical and near-infrared imaging using Subaru, combined with Two Micron All Sky Survey and Spitzer photometry, as well as follow-up spectroscopy confirming three likely cluster members, including a new brown dwarf with a mass close to the deuterium-burning limit. Here we present the results of extensive new spectroscopy targeting a total of {approx}100 candidates in {rho} Oph, with Fiber Multi Object Spectrograph at the Subaru Telescope and SINFONI at the ESO's Very Large Telescope. We identify 19 objects with effective temperatures at or below 3200 K, eight of which are newly identified very low mass probable members of {rho} Oph. Among these eight, six objects have T{sub eff} {<=} 3000 K, confirming their likely substellar nature. These six new brown dwarfs comprise one-fifth of the known substellar population in {rho} Oph. We estimate that the number of missing substellar objects in our survey area is {approx}15, down to 0.003-0.03 M{sub Sun} and for A{sub V} = 0-15. The upper limit on the low-mass star to brown dwarf ratio in {rho} Oph is 5.1 {+-} 1.4, while the disk fractions are {approx}40% and {approx}60% for stars and brown dwarfs, respectively. Both results are in line with those for other nearby star-forming regions.

Muzic, Koraljka; Jayawardhana, Ray [Department of Astronomy and Astrophysics, University of Toronto, 50 St. George Street, Toronto, ON M5S 3H4 (Canada); Scholz, Alexander [School of Cosmic Physics, Dublin Institute for Advanced Studies, 31 Fitzwilliam Place, Dublin 2 (Ireland); Geers, Vincent [Institut fuer Astronomie, ETH, Wolfgang-Pauli-Strasse 27, 8093 Zuerich (Switzerland); Tamura, Motohide, E-mail: muzic@astro.utoronto.ca [National Astronomical Observatory, Osawa 2-21-2, Mitaka, Tokyo 181 (Japan)

2012-01-10T23:59:59.000Z

374

Productivity and Quality of Brown Midrib (bmr) Sorghum Varieties to Producers in Central America  

E-Print Network [OSTI]

PRODUCTIVITY AND QUALITY OF BROWN MIDRIB (BMR) SORGHUM VARIETIES TO PRODUCERS IN CENTRAL AMERICA A Thesis by OSTILIO ROLANDO PORTILLO RODRIGUEZ Submitted to the Office of Graduate Studies of Texas A&M University in the partial... for Honduras, Guatemala and Nicaragua across several environments. iii ACKNOWLEDGEMENTS I would like to thank God Almighty for his blessings which made this cultural and academic experience at Texas A&M University a reality. I also would like...

Portillo Rodriguez, Ostilio Rolando

2013-05-01T23:59:59.000Z

375

A comparison of selected quality and compositional characteristics of brown and white shell eggs  

E-Print Network [OSTI]

for the degree of MASTER OF SCIENCE December 1982 Major Subject: Food Science and Tecnnology A COMPARISON OF SELECTED QUALITI AND COMPOSITIONAL CHARACTERISITICS OF HROWN AND WHITE SHELL EGGS A Thesis by PATRICIA ANN CURTIS Approved as to style... and cortent by: (Chairman of Committee) (Department ead) (Member) -'(, ( ember) ip (Member) December 1982 ABSTRACT A Comparison of Selected Quality and Compositional Characteristics of Brown and White Shell Eggs (December 1982) Patricia Ann Curtis...

Curtis, Patricia Ann

1982-01-01T23:59:59.000Z

376

Luminant's Big Brown Plant wins for continuous improvement and safety programs  

SciTech Connect (OSTI)

Staff from Luminant's Big Brown Plant accepted the PRB Coal Users' Group's top honour for innovative improvements to coal-handling systems and a sterling safety record. The numbers reveal their accomplishments: an average EFOR less than 4%, an availability factor averaging 90% for a plant that burns a lignite/PRB mix, and staff who worked more than 2.6 million man-hours since March 2000 without a lost-time injury. 13 photos., 1 tab.

Peltier, R.

2008-07-15T23:59:59.000Z

377

DISCOVERY OF THREE DISTANT, COLD BROWN DWARFS IN THE WFC3 INFRARED SPECTROSCOPIC PARALLELS SURVEY  

SciTech Connect (OSTI)

We present the discovery of three late-type ({>=}T4.5) brown dwarfs, including a probable Y dwarf, in the WFC3 Infrared Spectroscopic Parallels (WISP) survey. We use the G141 grism spectra to determine the spectral types of the dwarfs and derive distance estimates based on a comparison with nearby T dwarfs with known parallaxes. These are the most distant spectroscopically confirmed T/Y dwarfs, with the farthest at an estimated distance of {approx}400 pc. We compare the number of cold dwarfs found in the WISP survey with simulations of the brown dwarf mass function. The number found is generally consistent with an initial stellar mass function dN/dM{proportional_to}M{sup -{alpha}} with {alpha} = 0.0-0.5, although the identification of a Y dwarf is somewhat surprising and may be indicative of either a flatter absolute magnitude/spectral-type relation than previously reported or an upturn in the number of very-late-type brown dwarfs in the observed volume.

Masters, D.; Siana, B. [Department of Physics and Astronomy, University of California, Riverside, CA 92521 (United States); McCarthy, P.; Hathi, N. P.; Dressler, A. [Observatories of the Carnegie Institution of Washington, Pasadena, CA 91101 (United States); Burgasser, A. J. [Center for Astrophysics and Space Science, University of California, San Diego, La Jolla, CA 92093 (United States); Malkan, M.; Ross, N. R. [Department of Physics and Astronomy, UCLA, Los Angeles, CA 90095 (United States); Scarlata, C. [Astronomy Department, University of Minnesota, Minneapolis, MN 55455 (United States); Henry, A. [Department of Physics, University of California, Santa Barbara, CA 93106 (United States); Colbert, J.; Atek, H. [Spitzer Science Center, Caltech, Pasadena, CA 91125 (United States); Rafelski, M.; Teplitz, H. [Infrared Processing and Analysis Center, Caltech, Pasadena, CA 91125 (United States); Bunker, A. [Department of Physics, University of Oxford, Oxford (United Kingdom)

2012-06-10T23:59:59.000Z

378

Influence of canopy structure on tall fescue cultivar susceptibility to brown patch disease  

Science Journals Connector (OSTI)

Tall fescue (Festuca aurundinacea) cultivars were evaluated under growth chamber and field conditions for susceptibility to brown patch disease caused by Rhizoctonia solani. Percentage foliar necrosis varied among cultivars in growth chamber experiments. Kentucky-31 was the least susceptible cultivar (cv.), sustaining <25% necrosis 6 days after inoculation with the pathogen. Severity of necrosis in other cvs under the same conditions was as high as 88%. Brown patch disease development in the field was lowest in cv. Kentucky-31 among nine cvs evaluated over two years. Average blight severity in cv. Kentucky-31 in 1991 was 34%, compared with 60% in the most susceptible cv., Trailblazer. Similarly in 1992, cvs Kentucky-31 and Trailblazer had the lowest and highest levels, respectively, of brown patch lesion development. Leaf blade density and verdure in the field varied among the cvs. Blade density and verdure correlated (r = 0.78 and 0.68, respectively; p < 0.05) with the extent of lesions measured in 1992, but were not related to mean blight severity measured in 1991. Field disease levels observed in both years had low correlations (r = 0.59; p = 0.10) with levels of necrosis measured in the growth chamber.

Gary Y. Yuen; Loren J. Giesler; Garald L. Horst

1994-01-01T23:59:59.000Z

379

Powder segregation during the filling of a simple die  

E-Print Network [OSTI]

and 0. 005 to 0. 06 inches amplitude. The frequency values were read off the dial of the sine generator of the vibrator. The amplitudes were measured with a wheatstone bridge of strain gauges on a cantilever beam transducer. The read out was obtained...

Lawrence, Larry Raymond

1968-01-01T23:59:59.000Z

380

An important challenge in magnetic fusion research is to obtain...  

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

Ways to reduce your tokamak heating bill: Gaining control of edge transport barriers on Alcator C-Mod A crucial challenge in magnetic fusion is to obtain high energy confinement in...

Note: This page contains sample records for the topic "brown powder obtained" 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

Treatment of biomass to obtain a target chemical  

DOE Patents [OSTI]

Target chemicals were produced using biocatalysts that are able to ferment sugars derived from treated biomass. Sugars were obtained by pretreating biomass under conditions of high solids and low ammonia concentration, followed by saccharification.

Dunson, Jr., James B. (Newark, DE); Tucker, III, Melvin P. (Lakewood, CO); Elander, Richard T. (Evergreen, CO); Hennessey, Susan Marie (Avondale, PA)

2010-08-24T23:59:59.000Z

382

Vibration Testing of Bridge Stay Cables to Obtain Damping Values  

Science Journals Connector (OSTI)

This paper discusses a series of tests performed on a cable stayed bridge in British Columbia, Canada to obtain the cable damping properties. Free vibration tests were performed on selected cables, in two phases:...

Martin E. Turek; Carlos E. Ventura; Khaled Shawwaf

2011-01-01T23:59:59.000Z

383

Enery Efficient Press and Sinter of Titanium Powder for Low-Cost Components in Vehicle Applications  

SciTech Connect (OSTI)

This is the final technical report for the Department of Energy NETL project NT01931 Energy Efficient Press and Sinter of Titanium Powder for Low-Cost Components in Vehicle Applications. Titanium has been identified as one of the key materials with the required strength that can reduce the weight of automotive components and thereby reduce fuel consumption. Working with newly developed sources of titanium powder, Webster-Hoff will develop the processing technology to manufacture low cost vehicle components using the single press/single sinter techniques developed for iron based powder metallurgy today. Working with an automotive or truck manufacturer, Webster-Hoff will demonstrate the feasibility of manufacturing a press and sinter titanium component for a vehicle application. The project objective is two-fold, to develop the technology for manufacturing press and sinter titanium components, and to demonstrate the feasibility of producing a titanium component for a vehicle application. The lowest cost method for converting metal powder into a net shape part is the Powder Metallurgy Press and Sinter Process. The method involves compaction of the metal powder in a tool (usually a die and punches, upper and lower) at a high pressure (up to 60 TSI or 827 MPa) to form a green compact with the net shape of the final component. The powder in the green compact is held together by the compression bonds between the powder particles. The sinter process then converts the green compact to a metallurgically bonded net shape part through the process of solid state diffusion. The goal of this project is to expand the understanding and application of press and sinter technology to Titanium Powder applications, developing techniques to manufacture net shape Titanium components via the press and sinter process. In addition, working with a vehicle manufacturer, demonstrate the feasibility of producing a titanium component for a vehicle. This is not a research program, but rather a project to develop a process for press and sinter of net shape Titanium components. All of these project objectives have been successfully completed.

Thomas Zwitter; Phillip Nash; Xiaoyan Xu; Chadwick Johnson

2011-03-31T23:59:59.000Z

384

Hydrogen Storage in Diamond Powder Utilizing Plasma NaF Surface Treatment for Fuel Cell Applications  

SciTech Connect (OSTI)

Hydrogen Fuel Cells offer the vital solution to the world's socio-political dependence on oil. Due to existing difficulty in safe and efficient hydrogen storage for fuel cells, storing the hydrogen in hydrocarbon compounds such as artificial diamond is a realistic solution. By treating the surface of the diamond powder with a Sodium Fluoride plasma exposure, the surface of the diamond is cleaned of unwanted molecules. Due to fluorine's electro negativity, the diamond powder is activated and ready for hydrogen absorption. These diamond powder pellets are then placed on a graphite platform that is heated by conduction in a high voltage circuit made of tungsten wire. Then, the injection of hydrogen gas into chamber allows the storage of the Hydrogen on the surface of the diamond powder. By neutron bombardment in the nuclear reactor, or Prompt Gamma Neutron Activation Analysis, the samples are examined for parts per million amounts of hydrogen in the sample. Sodium Fluoride surface treatment allows for higher mass percentage of stored hydrogen in a reliable, resistant structure, such as diamond for fuel cells and permanently alters the diamonds terminal bonds for re-use in the effective storage of hydrogen. The highest stored amount utilizing the NaF plasma surface treatment was 22229 parts per million of hydrogen in the diamond powder which amounts to 2.2229% mass increase.

Leal, David A.; Leal-Quiros, E. [Mechanical Engineering, Polytechnic University of Puerto Rico (Puerto Rico); Velez, Angel; Prelas, Mark A.; Gosh, Tushar [University of Missouri-Columbia, Nuclear Science and Engineering Institute (United States)

2006-12-04T23:59:59.000Z

385

Porous Al alloys by local melting and diffusion of metal powders  

SciTech Connect (OSTI)

A novel method exploiting local melt and diffusion induced porosity is described for producing porous Al alloys. Aluminum powder and zinc powder were blended and cold-compacted to a near net shape. A porous Al-Zn alloy component was then formed by annealing the material above the melting point of zinc but below the solidus temperature of the alloy. Pores were generated by the diffusion of molten Zn into the solid Al grains. The pore structure is shown to be determined by the volume fraction, distribution, and size of the Zn powders in the powder mixture, and by time and temperature of the annealing heat treatment. The pores can be further expanded by incorporating small amounts of titanium hydride into the powder blend and conducting the annealing treatment above the decomposition temperature of the titanium hydride (T > 447 C). Porosity levels of 45 vol.% have been achieved to date. This processing approach appears amenable to the production of sandwich panels with a gradient porosity core and fully dense face sheets, and is applicable to other solid solution systems.

Wang, N.; Starke, E.A. Jr.; Wadley, H.N.G. [Univ. of Virginia, Charlottesville, VA (United States). Dept. of Materials Science and Engineering

1998-12-31T23:59:59.000Z

386

Study of reactions of activated Mg-based powders in heated steam  

Science Journals Connector (OSTI)

Abstract Activated Mg-based powders are prepared by high-energy milling and characterised with XRD, SEM, TG and BET techniques. This study focus on reactions of Mg-based powders with flowing steam that is heated at 500, 600, and 700C in a transparent pipe furnace. Morphologies and phases of solid reaction products are analysed by SEM, XRD, and residual metal content, and ignition delay times are measured. Experimental results show that all Mg-based powders oxidise at 500C and ignite at 600C. At 700C, all samples burn completely to form magnesium oxide (MgO) within 5min. Residual metal contents and ignition delay times of all samples decrease with increasing temperature, and ignition delay times of activated Mg-based materials containing cobalto-cobaltic oxide (Co3O4) are only 22s at 700C. Milled Mg powders are more reactive in heated steam than unmilled Mg powders, and the addition of Co3O4 further increases magnesium reactivity in heated steam.

Hai-tao Huang; Mei-shuai Zou; Xiao-yan Guo; Rong-jie Yang; Yun-kai Li

2014-01-01T23:59:59.000Z

387

Hydrogen Storage in Diamond Powder Utilizing Plasma NaF Surface Treatment for Fuel Cell Applications  

Science Journals Connector (OSTI)

Hydrogen Fuel Cells offer the vital solution to the worlds socio?political dependence on oil. Due to existing difficulty in safe and efficient hydrogen storage for fuel cells storing the hydrogen in hydrocarbon compounds such as artificial diamond is a realistic solution. By treating the surface of the diamond powder with a Sodium Fluoride plasma exposure the surface of the diamond is cleaned of unwanted molecules. Due to fluorines electro negativity the diamond powder is activated and ready for hydrogen absorption. These diamond powder pellets are then placed on a graphite platform that is heated by conduction in a high voltage circuit made of tungsten wire. Then the injection of hydrogen gas into chamber allows the storage of the Hydrogen on the surface of the diamond powder. By neutron bombardment in the nuclear reactor or Prompt Gamma Neutron Activation Analysis the samples are examined for parts per million amounts of hydrogen in the sample. Sodium Fluoride surface treatment allows for higher mass percentage of stored hydrogen in a reliable resistant structure such as diamond for fuel cells and permanently alters the diamonds terminal bonds for re?use in the effective storage of hydrogen. The highest stored amount utilizing the NaF plasma surface treatment was 22229 parts per million of hydrogen in the diamond powder which amounts to 2.2229% mass increase.

David A. Leal; Angel Velez; Mark A. Prelas; Tushar Gosh; E. Leal?Quiros

2006-01-01T23:59:59.000Z

388

Self-powdering and nonlinear optical domain structures in ferroelastic beta'-Gd{sub 2}(MoO{sub 4}){sub 3} crystals formed in glass  

SciTech Connect (OSTI)

Ferroelastic beta'-Gd{sub 2}(MoO{sub 4}){sub 3}, (GMO), crystals are formed through the crystallization of 21.25Gd{sub 2}O{sub 3}-63.75MoO{sub 3}-15B{sub 2}O{sub 3} glass (mol%), and two scientific curious phenomena are observed. (1) GMO crystals formed in the crystallization break into small pieces with a triangular prism or pyramid shape having a length of 50-500 {mu}m spontaneously during the crystallizations in the inside of an electric furnace, not during the cooling in air after the crystallization. This phenomenon is called 'self-powdering phenomenon during crystallization' in this paper. (2) Each self-powdered GMO crystal grain shows a periodic domain structure with different refractive indices, and a spatially periodic second harmonic generation (SHG) depending on the domain structure is observed. It is proposed from polarized micro-Raman scattering spectra and the azimuthal dependence of second harmonic intensities that GMO crystals are oriented in each crystal grain and the orientation of (MoO{sub 4}){sup 2-} tetrahedra in GMO crystals changes periodically due to spontaneous strains in ferroelastic GMO crystals. - Graphical abstract: This figure shows the polarized optical photograph at room temperature for a particle (piece) obtained by a heat treatment of the glass at 590 deg. C for 2 h in an electric furnace in air. This particle was obtained through the self-powdering behavior in the crystallization of glass. The periodic domain structure is observed. Ferroelastic beta'-Gd{sub 2}(MoO{sub 4}){sub 3} crystals are formed in the particle, and second harmonic generations are detected, depending on the domain structure.

Tsukada, Y.; Honma, T. [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan); Komatsu, T., E-mail: komatsu@mst.nagaokaut.ac.j [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan)

2009-08-15T23:59:59.000Z

389

Effects of dispersants and soluble counter-ions on aqueous dispersibility of nano-sized zirconia powder  

Science Journals Connector (OSTI)

The effect of different dispersants and water leaching on aqueous dispersibility of zirconia powder was studied. Zeta potentials of aqueous solutions containing nano-sized zirconia powder and different dispersants, such as ammonium polyacrylic acid (PAA-NH4) and tetramethyl ammonium hydroxide (TMAH) and water leaching were characterized. Better dispersion of nano-sized zirconia powder in aqueous solutions was achieved with the addition of dispersant and water leaching.

Zhipeng Xie; Jingtao Ma; Qing Xu; Yong Huang; Yi-Bing Cheng

2004-01-01T23:59:59.000Z

390

OPTIMIZATION OF CUTTING CONDITIONS FOR SUSTAINABLE MACHINING OF SINTERED POWDER METAL STEELS USING PCBN AND CARBIDE TOOLS.  

E-Print Network [OSTI]

??Powder metals are becoming a popular choice in the automotive and other manufacturing industries because of their ability to meet wide ranging product functional requirements (more)

Joshi, Kunal J.

2006-01-01T23:59:59.000Z

391

Java Collections 2001 D.A. Watt and D.F. Brown 6-1 Solutions to Exercises in Chapter 6  

E-Print Network [OSTI]

Java Collections © 2001 D.A. Watt and D.F. Brown 6-1 Solutions to Exercises in Chapter 6 6 from input to output, using spur: #12;Java Collections © 2001 D.A. Watt and D.F. Brown 6-2 1. For c = 1 `[' 2 depth=3 4 5After scanning `arg[': #12;Java Collections © 2001 D.A. Watt and D.F. Brown 6-3 Figure

Watt, David A.

392

Java Collections 2001 D.A. Watt and D.F. Brown 2-1 Solutions to Exercises in Chapter 2  

E-Print Network [OSTI]

Java Collections © 2001 D.A. Watt and D.F. Brown 2-1 Solutions to Exercises in Chapter 2 2 (non-recursive version): #12;Java Collections © 2001 D.A. Watt and D.F. Brown 2-2 static int factorial of program: #12;Java Collections © 2001 D.A. Watt and D.F. Brown 2-3 static void moveTower (int n, int source

Watt, David A.

393

Java Collections 2001 D.A. Watt and D.F. Brown 13-1 Solutions to Exercises in Chapter 13  

E-Print Network [OSTI]

Java Collections © 2001 D.A. Watt and D.F. Brown 13-1 Solutions to Exercises in Chapter 13 13 E G A B C D E GF A D G D G D #12;Java Collections © 2001 D.A. Watt and D.F. Brown 13-2 Figure S13 Collections © 2001 D.A. Watt and D.F. Brown 13-3 public class UnsortedLinkedPriorityQueue implements Priority

Watt, David A.

394

Structural Studies of Al:ZnO Powders and Thin Films | Stanford Synchrotron  

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

Structural Studies of Al:ZnO Powders and Thin Films Structural Studies of Al:ZnO Powders and Thin Films Monday, June 18, 2012 - 2:00pm SSRL Main Conference Room 137-322 Dr. Bridget Ingham, Associate Investigator, MacDiarmid Institute for Advanced Materials & Nanotechnology Al-doped ZnO (Al:ZnO) is a promising transparent conducting oxide. We have used complementary synchrotron and laboratory techniques to study the incorporation of Al within the ZnO lattice, and measure its effect on the crystallinity of thin films prepared by sol-gel techniques, with an aim to understand how these properties affect the film conductivity. I will present recent results from Al:ZnO powders and thin films, prepared with varying Al concentrations and calcination temperatures. Solid state 27Al NMR and ex situ X-ray diffraction (XRD) were performed on Al:ZnO

395

MODELING POWDERED SORBENT INJECTION IN COMBINATION WITHE FABRIC FILTER FOR THE CONTROL OF MERCURY EMISSIONS  

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

POWDERED SORBENT INJECTION IN POWDERED SORBENT INJECTION IN COMBINATION WITH FABRIC FILTER FOR THE CONTROL OF MERCURY EMISSIONS Joseph R. V. Flora Department of Civil and Environmental Engineering University of South Carolina, Columbia, SC 29208 Richard A. Hargis, William J. O'Dowd, Henry W. Pennline National Energy Technology Laboratory, U.S. Department of Energy P.O. Box, 10940, Pittsburgh, PA 15236 Radisav D. Vidic * Department of Civil and Environmental Engineering University of Pittsburgh, Pittsburgh, PA 15261 ABSTRACT A two-stage mathematical model for mercury removal using powdered activated carbon injection upstream of a baghouse filter was developed, with the first stage accounting for removal in the ductwork and the second stage accounting for additional removal due to the

396

Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment |  

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

Obtains Patent for Nuclear Reactor Sodium Cleanup Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment March 28, 2013 - 12:00pm Addthis CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. Piping in the east boiler basement of the sodium processing building was color coded for easy identification. Orange indicates sodium and green identifies cooling water.

397

Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment |  

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

Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment Idaho Site Obtains Patent for Nuclear Reactor Sodium Cleanup Treatment March 28, 2013 - 12:00pm Addthis CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. CWI engineers Jeff Jones, David Tolman, right, and Kirk Dooley (seated) developed a treatment to safely dissolve a bicarbonate crust and treat and remove the sodium in the Experimental Breeder Reactor-II at the Idaho site. Piping in the east boiler basement of the sodium processing building was color coded for easy identification. Orange indicates sodium and green identifies cooling water.

398

Obtaining the Bidirectional Transfer Distribution Function of Isotropically  

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

Obtaining the Bidirectional Transfer Distribution Function of Isotropically Obtaining the Bidirectional Transfer Distribution Function of Isotropically Scattering Materials Using an Integrating Sphere Title Obtaining the Bidirectional Transfer Distribution Function of Isotropically Scattering Materials Using an Integrating Sphere Publication Type Journal Article LBNL Report Number LBNL-61826 Year of Publication 2007 Authors Jonsson, Jacob C., and Henrik Branden Journal Optics Communications Volume 277 Pagination 228-236 Call Number LBNL-61826 Abstract This paper demonstrates a method to determine the bidirectional transfer distribution function (BTDF) using an integrating sphere. Information about the sample's angle dependent scattering is obtained by making transmittance measurements with the sample at different distances from the integrating sphere. Knowledge about the illuminated area of the sample and the geometry of the sphere port in combination with the measured data combines to an system of equations that includes the angle dependent transmittance. The resulting system of equations is an ill-posed problem which rarely gives a physical solution. A solvable system is obtained by using Tikhonov regularization on the ill-posed problem. The solution to this system can then be used to obtain the BTDF. Four bulk-scattering samples were characterised using both two goniophotometers and the described method to verify the validity of the new method. The agreement shown is great for the more diffuse samples. The solution to the low-scattering samples contains unphysical oscillations, but still gives the correct shape of the solution. The origin of the oscillations and why they are more prominent in low-scattering samples are discussed.

399

Molecularly imprinted polymer coated solid-phase microextraction fibers for determination of Sudan IIV dyes in hot chili powder and poultry feed samples  

Science Journals Connector (OSTI)

In this research, a novel strategy was developed to prepare molecularly imprinted polymer (MIP) coated solid-phase microextraction fibers on a large scale with Sudan I as template and stainless steel fibers as substrate. More than 20 fibers could be obtained in one glass tube, and the efficiency and coating repeatability were enhanced remarkably in contrast with the yield of only one fiber in our previous works. The obtained MIP-coated stainless steel fibers were characterized by homogeneous and highly cross-linked coating, good chemical and thermal stabilities, high extraction capacities, and specific selectivities to Sudan IIV dyes. Based on the systemic optimization of extraction conditions, a simple and cost-effective method based on the coupling of MIP-coated SPME with high-performance liquid chromatography was developed for the fast and selective determination of trace Sudan IIV dyes in hot chili powder and poultry feed samples. The limits of detection of Sudan IIV dyes were within 2.54.6ngg?1, and the spiked recoveries were in the range of 86.396.3% for hot chili powder sample and 84.697.4% for poultry feed sample.

Xiaogang Hu; Quanlin Cai; Yanan Fan; Tingting Ye; Yujuan Cao; Changjuan Guo

2012-01-01T23:59:59.000Z

400

Powder synthesis and consolidation of thallium based high temperature superconductors. Final technical report  

SciTech Connect (OSTI)

Objective is to provide research samples of the Tl-based powders prepared by Rockwell`s spray calciner. Target compositions were set at 1.1 Tl, 1 Ba, 1 Ca, 1.5 Cu and 1.1 Tl, 1.12 Ba, 1 Ca, 1.88 Cu. Three calciner runs were made. The Nomex bags were replaced with Gore-Tex bags. The system was operated continuously for 24 h, producing 1.7 kg HTSC powder. Problems with CO{sub 2}, Tl volatility during sintering, etc., are discussed.

Gay, R.L. [Rockwell International Corp., Canoga Park, CA (United States). Rocketdyne Div.

1990-06-23T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

A Semi-Empirical Model Relating Flow Properties to Particle Contacts in Fine Binary Powder Mixtures  

E-Print Network [OSTI]

zone to 7 the onset of incipient flow is of wide benefit to a range of granular systems beyond EP 8 printing devices such as the processes of powder materials in pharmaceutical and food 9 industrials. 10 However, despite its importance, the number... additives have only a small effect on the internal friction [20]. In this study, 12 nm 17 hydrophobic silica nanoparticles, Aerosil R805 (Evonik Industries, Germany), were chosen 18 as the surface additives for the PS-DVB powder particles. The BET surface...

Kojima, Takehiro; Elliott, James A.

2014-08-20T23:59:59.000Z

402

OBTAINING EMPLOYMENT AT THE UNIVERSITY OF HAWAI`I  

E-Print Network [OSTI]

OBTAINING EMPLOYMENT AT THE UNIVERSITY OF HAWAI`I Employees at the University of Hawai`i fall into one of four distinct categories of employment ­ civil service, faculty, administrative of Campus Security Policy and Campus Crime Statistics Act, annual campus crime statistics for the University

Olsen, Stephen L.

403

Brain Mapping Using Topology Graphs Obtained by Surface Segmentation  

E-Print Network [OSTI]

Brain Mapping Using Topology Graphs Obtained by Surface Segmentation Fabien Vivodtzev1 , Lars@ucdavis.edu Summary. Brain mapping is a technique used to alleviate the tedious and time- consuming process of annotating brains by mapping existing annotations from brain atlases to individual brains. We introduce

Linsen, Lars

404

The P-V-T equation of state of D2O ice VI determined by neutron powder diffraction in the range 0 < P < 2.6 GPa and 120 < T < 330 K, and the isothermal equation of state of D2O ice VII from 2 to 7 GPa at room temperature  

Science Journals Connector (OSTI)

Ice VI is an important rock-forming mineral phase in icy planetary bodies; the pressure and temperature dependence of its density have been measured using powder neutron diffraction, throughout the high-pressure stability field, to obtain an accurate equation of state parameterization. These data are used to derive other thermodynamic quantities of use in planetary modelling.

Fortes, A.D.

2012-05-16T23:59:59.000Z

405

"1. Browns Ferry","Nuclear","Tennessee Valley Authority",3309  

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

Alabama" Alabama" "1. Browns Ferry","Nuclear","Tennessee Valley Authority",3309 "2. James H Miller Jr","Coal","Alabama Power Co",2675 "3. Barry","Coal","Alabama Power Co",2575 "4. E C Gaston","Coal","Alabama Power Co",1878 "5. H Allen Franklin Combined Cycle","Gas","Southern Power Co",1815 "6. Joseph M Farley","Nuclear","Alabama Power Co",1734 "7. Widows Creek","Coal","Tennessee Valley Authority",1604 "8. Colbert","Coal","Tennessee Valley Authority",1574 "9. E B Harris Electric Generating Plant","Gas","Southern Power Co",1269

406

Hydrothermal Synthesis of Dy-Doped BaTiO3 Powders ERSIN E. OREN and A. CUNEYT TAS  

E-Print Network [OSTI]

. Hydrothermal processing sis method used and temperature, may exhibit four different of BaTiO3 powders has) are "ferroelectric." hydrothermal processing required a pH 12 in the aqueous BaTiO3 is of the tetragonal symmetryHydrothermal Synthesis of Dy-Doped BaTiO3 Powders ERSIN E. OREN and A. CUNEYT TAS Submicron

Tas, A. Cuneyt

407

Groundwater recharge estimates using a soil-water-balance model for the Powder River and Williston structural basins  

E-Print Network [OSTI]

Groundwater recharge estimates using a soil-water-balance model for the Powder River and Williston for the lower Tertiary and Upper Cretaceous aquifer system in the Powder River and Williston structural basins in the Williston structural basin will require trillions of gallons of water from this aquifer system over the next

Torgersen, Christian

408

Maximum Entropy Method and Charge Flipping, a Powerful Combination to Visualize the True Nature of Structural Disorder from in situ X-ray Powder Diffraction Data  

SciTech Connect (OSTI)

In a systematic approach, the ability of the Maximum Entropy Method (MEM) to reconstruct the most probable electron density of highly disordered crystal structures from X-ray powder diffraction data was evaluated. As a case study, the ambient temperature crystal structures of disordered {alpha}-Rb{sub 2}[C{sub 2}O{sub 4}] and {alpha}-Rb{sub 2}[CO{sub 3}] and ordered {delta}-K{sub 2}[C{sub 2}O{sub 4}] were investigated in detail with the aim of revealing the 'true' nature of the apparent disorder. Different combinations of F (based on phased structure factors) and G constraints (based on structure-factor amplitudes) from different sources were applied in MEM calculations. In particular, a new combination of the MEM with the recently developed charge-flipping algorithm with histogram matching for powder diffraction data (pCF) was successfully introduced to avoid the inevitable bias of the phases of the structure-factor amplitudes by the Rietveld model. Completely ab initio electron-density distributions have been obtained with the MEM applied to a combination of structure-factor amplitudes from Le Bail fits with phases derived from pCF. All features of the crystal structures, in particular the disorder of the oxalate and carbonate anions, and the displacements of the cations, are clearly obtained. This approach bears the potential of a fast method of electron-density determination, even for highly disordered materials. All the MEM maps obtained in this work were compared with the MEM map derived from the best Rietveld refined model. In general, the phased observed structure factors obtained from Rietveld refinement (applying F and G constraints) were found to give the closest description of the experimental data and thus lead to the most accurate image of the actual disorder.

Samy, A.; Dinnebier, R; van Smaalen, S; Jansen, M

2010-01-01T23:59:59.000Z

409

Structural and spectroscopic analyses of europium doped yttrium oxyfluoride powders prepared by combustion synthesis  

SciTech Connect (OSTI)

A facile widely spread technique employed to produce low-cost high-yield oxide powders, combustion synthesis, was used to prepare yttrium oxyfluoride crystalline ceramic powders. The structure of the powders was analyzed by X-ray powder diffraction and Rietveld refinement. Samples heat treated at 700 C had a predominance of vernier orthorhombic Y{sub 6}O{sub 5}F{sub 8} phase, while samples heat treated at 800 C crystallized in stoichiometric rhombohedral YOF phase. The samples were doped with luminescent europium trivalent ions (Eu{sup 3+}) in different concentrations (115 wt.%) and Judd-Ofelt theory was used to probe the distortion from the inversion symmetry of the local crystal field and the degree of covalency between the rare-earth ion and the surrounding ligands. The luminescence lifetime was measured and the luminescence quantum efficiency (LQE) was estimated. We observed that Eu{sup 3+}:Y{sub 6}O{sub 5}F{sub 8} samples presented higher LQE in spite of the larger local crystal field anisotropy found for Eu{sup 3+}:YOF samples.

Rakov, Nikifor [PG-Cincia dos Materiais, Universidade Federal do Vale do So Francisco, 48902-300 Juazeiro, BA (Brazil)] [PG-Cincia dos Materiais, Universidade Federal do Vale do So Francisco, 48902-300 Juazeiro, BA (Brazil); Guimares, R. B.; Maciel, Glauco S. [Instituto de Fsica, Universidade Federal Fluminense, 24210-346 Niteri, RJ (Brazil)] [Instituto de Fsica, Universidade Federal Fluminense, 24210-346 Niteri, RJ (Brazil); Lozano B, W. [Departamento de Fsica, Universidade Federal de Pernambuco, 50670-901 Recife, PE (Brazil)] [Departamento de Fsica, Universidade Federal de Pernambuco, 50670-901 Recife, PE (Brazil)

2013-07-28T23:59:59.000Z

410

A modified Drucker-Prager Cap model for die compaction simulation of pharmaceutical powders  

E-Print Network [OSTI]

;1. Introduction As the most widely used dosage form for drug delivery in the pharmaceutical industry, tablets haveA modified Drucker-Prager Cap model for die compaction simulation of pharmaceutical powders L Institute for Pharmaceutical Materials Science, Department of Materials Science and Metallurgy, University

Elliott, James

411

Development of lifetime test procedure for powder evacuated panel insulation. CRADA final report  

SciTech Connect (OSTI)

This CRADA is between Appliance Research Consortium (ARC) of the Association of Home Appliance Manufacturers (AHAM) and the Lockheed Martin Energy Research Corp. A Powder Evacuated Panel (PEP) is a "super" thermal insulation, having a thermal resistivity (R) substantially above that of existing insulation without the environmental problems of some insulations such as Chlorofluorocarbon (CFC) blown foam.

Wilkes, K E; Graves, R S; Childs, K W

1996-03-01T23:59:59.000Z

412

FORT UNION COAL IN THE POWDER RIVER BASIN, WYOMING AND MONTANA: A SYNTHESIS  

E-Print Network [OSTI]

...................................................................................PS-18 Coal-Bed Methane ResourceChapter PS FORT UNION COAL IN THE POWDER RIVER BASIN, WYOMING AND MONTANA: A SYNTHESIS By R of selected Tertiary coal beds and zones in the Northern RockyMountains and Great Plains region, U

413

Chemical Preparation of Pure and Strontium-and/or Magnesium-Doped Lanthanum Gallate Powders  

E-Print Network [OSTI]

Chemical Preparation of Pure and Strontium- and/or Magnesium-Doped Lanthanum Gallate Powders A. Cu) ceramics that have been doped with strontium and/or magnesium are known to have superior oxygen re- cently synthesized strontium- and magnesium-doped LaGaO3 ceramics, using the conventional "solid

Tas, A. Cuneyt

414

Economic Analysis of Carbon Dioxide Sequestration in Powder River Basin Coal  

SciTech Connect (OSTI)

Unminable coalbeds are potentially large storage reservoirs for the sequestration of anthropogenic CO2 and offer the benefit of enhanced methane production, which can offset some of the costs associated with CO2 sequestration. The objective of this paper is to study the economic feasibility of CO2 sequestration in unminable coal seams in the Powder River Basin of Wyoming. Economic analyses of CO2 injection options are compared. Results show that injecting flue gas to recover methane from CBM fields is marginally economical; however, this method will not significantly contribute to the need to sequester large quantities of CO2. Separating CO2 from flue gas and injecting it into the unminable coal zones of the Powder River Basin seam is currently uneconomical, but can effectively sequester over 86,000 tons (78,200 tonne) of CO2 per acre while recovering methane to offset costs. The cost to separate CO2 from flue gas was identified as the major cost driver associated with CO2 sequestration in unminable coal seams. Improvements in separations technology alone are unlikely to drive costs low enough for CO2 sequestration in unminable coal seams in the Powder River Basin to become economically viable. Breakthroughs in separations technology could aid the economics, but in the Powder River Basin they cannot achieve the necessary cost reductions for breakeven economics without incentives.

Eric P. Robertson

2009-01-01T23:59:59.000Z

415

Laser-optic Measurements of Velocity of Particles in the Powder Stream at Coaxial Laser Cladding  

Science Journals Connector (OSTI)

Abstract The problems of particle velocity and temperature measurement can be solved with commonly-known methods of registration based on spectrometry and a complex of laser and optical means. The diagnostic technique combines two independent methods of particle velocity measurement, namely the passive way which is based on the intrinsic radiation of the heated particles in a gas flow, and the active one which utilizes the effect of the laser beam scattering. It is demonstrated that the laser radiation can affect significantly the particles velocity at the laser cladding. Presented bar charts of statistical distributions of the particles velocities illustrate two modes of the coaxial nozzle performance, with and without ??2-laser radiation. Different types of powders (Al2O3, Mo, Ni, Al) were used in tests, the particle size distributions were typical for the laser cladding; air, nitrogen, argon were used as working gases, continuous radiation of the ??2 laser reached 3kW. It is shown that in the laser-radiation field, the powder particles undergo extra acceleration due to the laser evaporation and reactive force occurrence resulting from the recoil pressure vapors from the beamed part of particles surfaces. The observed effect of particles acceleration depends on the particles concentration in the powder flow. Due to the laser acceleration, the velocities of individual particles may reach the values of about 80 100 m/s. The trichromatic pyrometry method was utilized to measure the particles temperature in the powder flow.

D.V. Sergachev; A.A. Mikhalchenko; O.B. Kovalev; V.I. Kuzmin; G.N. Grachev; P.A. Pinaev

2014-01-01T23:59:59.000Z

416

MODELING THE MEAN INTERACTION FORCES BETWEEN POWDER APPLICATION TO SILICA GEL-MAGNESIUM STEARATE MIXTURES.  

E-Print Network [OSTI]

1 MODELING THE MEAN INTERACTION FORCES BETWEEN POWDER PARTICLES. APPLICATION TO SILICA GEL-MAGNESIUM) particles (d50 = 55 µm) were coated with fine invited particles of magnesium stearate (MS, d50 = 4.6 µm. Interaction forces between the material attached to the cantilever (Magnesium Stearate MS) and the surface

Paris-Sud XI, Université de

417

Method of manufacturing iron aluminide by thermomechanical processing of elemental powders  

DOE Patents [OSTI]

A powder metallurgical process of preparing iron aluminide useful as electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The iron aluminide has an entirely ferritic microstructure which is free of austenite and can include, in weight %, 20 to 32% Al, and optional additions such as .ltoreq.1% Cr, .gtoreq.05% Zr or ZrO.sub.2 stringers extending perpendicular to an exposed surface of the heating element, .ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Zr, .ltoreq.1% C, .ltoreq.0.1% B, .ltoreq.30% oxide dispersoid and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1 % rare earth metal, .ltoreq.1% oxygen, and/or .ltoreq.3% Cu. The process includes forming a mixture of aluminum powder and iron powder, shaping the mixture into an article such as by cold rolling the mixture into a sheet, and sintering the article at a temperature sufficient to react the iron and aluminum powders and form iron aluminide. The sintering can be followed by hot or cold rolling to reduce porosity created during the sintering step and optional annealing steps in a vacuum or inert atmosphere.

Deevi, Seetharama C. (Midlothian, VA); Lilly, Jr., A. Clifton (Chesterfield, VA); Sikka, Vinod K. (Oak Ridge, TN); Hajaligol, Mohammed R. (Richmond, VA)

2000-01-01T23:59:59.000Z

418

COAL RESOURCES, POWDER RIVER BASIN By M.S. Ellis,1  

E-Print Network [OSTI]

Chapter PN COAL RESOURCES, POWDER RIVER BASIN By M.S. Ellis,1 G.L. Gunther,2 A.M. Ochs,2 S, Delaware 1999 Resource assessment of selected Tertiary coal beds and zones in the Northern Rocky in the toolbar to return. 1999 Resource assessment of selected Tertiary coal beds and zones in the Northern Rocky

419

SHERIDAN COALFIELD, POWDER RIVER BASIN: GEOLOGY, COAL QUALITY, AND COAL RESOURCES  

E-Print Network [OSTI]

Chapter PH SHERIDAN COALFIELD, POWDER RIVER BASIN: GEOLOGY, COAL QUALITY, AND COAL RESOURCES By M assessment of selected Tertiary coal beds and zones in the Northern RockyMountains and Great Plains region, U Resource assessment of selected Tertiary coal beds and zones in the Northern Rocky Mountains and Great

420

Without proper controls, consolidation could influence performance in the Powder River Basin  

SciTech Connect (OSTI)

The American coal industry is in a period of consolidation. Fewer firms with larger production are replacing a more dispersed industry. Because of the southern Powder River Basin's great importance as source of coal, there is a need to monitor the performance of southern PRB coal producers.

Bierman, S.; Nelson, P.

2005-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

Mechanical properties of WC10Co cemented carbides sintered from nanocrystalline spray conversion processed powders  

E-Print Network [OSTI]

Mechanical properties of WC±10Co cemented carbides sintered from nanocrystalline spray conversion as the spray conversion process [2]. The WC particle sizes in powders fabricated by the spray conversion: microstructural parameters such as WC grain size, Co mean free path and WC/WC contiguity; chemical factors

Hong, Soon Hyung

422

Catalytically Assisted Self-Propagating High-Temperature Synthesis of Tantalum Carbide Powders  

E-Print Network [OSTI]

) that are otherwise difficult to produce (e.g., transition metal/borides, carbides, and nitrides).1,2 Many earlierCatalytically Assisted Self-Propagating High-Temperature Synthesis of Tantalum Carbide Powders Troy/carbon/tantalum carbide combustion synthesis system has been examined to determine the effects of transport agents

Wooldridge, Margaret S.

423

Stereochemistry Determination by Powder X-ray Diffraction Analysis and NMR Spectroscopy Residual Dipolar Couplings  

SciTech Connect (OSTI)

A matter of technique: For a new steroidal lactol, jaborosalactol 24 (1), isolated from Jaborosa parviflora, NMR spectroscopy residual dipolar couplings and powder X-ray diffraction analysis independently gave the same stereochemistry at C23-C26. Conventional NMR spectroscopic techniques, such as NOE and {sup 3}J coupling-constant analysis failed to unambiguously determine this stereochemistry.

Garcia, M.; Pagola, S; Navarro-Vasquez, A; Phillips, D; Gayathri, C; Krakauer, H; Stephens, P; Nicotra, V; Gil, R

2009-01-01T23:59:59.000Z

424

Evaluation of Dried Plum Powder in Meat Products Destined for Convenience and Foodservice Outlets  

E-Print Network [OSTI]

Antioxidant activity of dried plum powder (DPP) at 3% was compared to rosemary extract (RE) at 0.05% in turkey breakfast sausages which were stored under three aerobic conditions: raw refrigerated (RR; 6 degrees C), raw and precooked frozen (RF...

Merrill, Robert M.

2011-08-08T23:59:59.000Z

425

Fabrication of metal matrix composite by semi-solid powder processing  

SciTech Connect (OSTI)

Various metal matrix composites (MMCs) are widely used in the automotive, aerospace and electrical industries due to their capability and flexibility in improving the mechanical, thermal and electrical properties of a component. However, current manufacturing technologies may suffer from insufficient process stability and reliability and inadequate economic efficiency and may not be able to satisfy the increasing demands placed on MMCs. Semi-solid powder processing (SPP), a technology that combines traditional powder metallurgy and semi-solid forming methods, has potential to produce MMCs with low cost and high efficiency. In this work, the analytical study and experimental investigation of SPP on the fabrication of MMCs were explored. An analytical model was developed to understand the deformation mechanism of the powder compact in the semi-solid state. The densification behavior of the Al6061 and SiC powder mixtures was investigated with different liquid fractions and SiC volume fractions. The limits of SPP were analyzed in terms of reinforcement phase loading and its impact on the composite microstructure. To explore adoption of new materials, carbon nanotube (CNT) was investigated as a reinforcing material in aluminum matrix using SPP. The process was successfully modeled for the mono-phase powder (Al6061) compaction and the density and density distribution were predicted. The deformation mechanism at low and high liquid fractions was discussed. In addition, the compaction behavior of the ceramic-metal powder mixture was understood, and the SiC loading limit was identified by parametric study. For the fabrication of CNT reinforced Al6061 composite, the mechanical alloying of Al6061-CNT powders was first investigated. A mathematical model was developed to predict the CNT length change during the mechanical alloying process. The effects of mechanical alloying time and processing temperature during SPP were studied on the mechanical, microstructural and compositional properties of the Al6061-CNT composites. A shear lag model was applied to predict the mechanical property (hardness) of the composite. This work demonstrated the promising potential of SPP in the fabrication of particle/fiber (nanotube) reinforced MMCs.

Wu, Yufeng [Ames Laboratory

2012-11-28T23:59:59.000Z

426

A comprehensive review on the hydro metallurgical process for the production of nickel and copper powders by hydrogen reduction  

SciTech Connect (OSTI)

Production of nickel and copper powders from leach solutions and other aqueous streams by hydrogen reduction under pressure has been reviewed in the present paper. By optimising the optimum process condition, powders or composite materials of required specification could be produced from different types of acidic and alkaline solutions by coating nickel or copper powders on the secondary materials such as graphite, tungsten carbide and aluminium. The paper also highlights the kinetics of reduction and the use of various inorganic and organic additives to improve the quality of the powder on bench and commercial scale. Effect of various experimental factors such as pH of the solution, concentration of metals, particle size and nature of additives, operating condition of autoclave, etc. on the rate of reduction and quality of powder are also discussed.

Agrawal, A. [Non Ferrous Process Group, National Metallurgical Laboratory, Jamshedpur 831007 (India)]. E-mail: archana@nmlindia.com; Kumar, V. [Non Ferrous Process Group, National Metallurgical Laboratory, Jamshedpur 831007 (India); Pandey, B.D. [Non Ferrous Process Group, National Metallurgical Laboratory, Jamshedpur 831007 (India); Sahu, K.K. [Non Ferrous Process Group, National Metallurgical Laboratory, Jamshedpur 831007 (India)

2006-04-13T23:59:59.000Z

427

Method of manufacturing aluminide sheet by thermomechanical processing of aluminide powders  

DOE Patents [OSTI]

A powder metallurgical process of preparing a sheet from a powder having an intermetallic alloy composition such as an iron, nickel or titanium aluminide. The sheet can be manufactured into electrical resistance heating elements having improved room temperature ductility, electrical resistivity, cyclic fatigue resistance, high temperature oxidation resistance, low and high temperature strength, and/or resistance to high temperature sagging. The iron aluminide has an entirely ferritic microstructure which is free of austenite and can include, in weight %, 4 to 32% Al, and optional additions such as .ltoreq.1% Cr, .gtoreq.0.05% Zr.ltoreq.2% Ti, .ltoreq.2% Mo, .ltoreq.1% Ni, .ltoreq.0.75% C, .ltoreq.0.1% B, .ltoreq.1% submicron oxide particles and/or electrically insulating or electrically conductive covalent ceramic particles, .ltoreq.1% rare earth metal, and/or .ltoreq.3% Cu. The process includes forming a non-densified metal sheet by consolidating a powder having an intermetallic alloy composition such as by roll compaction, tape casting or plasma spraying, forming a cold rolled sheet by cold rolling the non-densified metal sheet so as to increase the density and reduce the thickness thereof and annealing the cold rolled sheet. The powder can be a water, polymer or gas atomized powder which is subjecting to sieving and/or blending with a binder prior to the consolidation step. After the consolidation step, the sheet can be partially sintered. The cold rolling and/or annealing steps can be repeated to achieve the desired sheet thickness and properties. The annealing can be carried out in a vacuum furnace with a vacuum or inert atmosphere. During final annealing, the cold rolled sheet recrystallizes to an average grain size of about 10 to 30 .mu.m. Final stress relief annealing can be carried out in the B2 phase temperature range.

Hajaligol, Mohammad R. (Midlothian, VA); Scorey, Clive (Cheshire, CT); Sikka, Vinod K. (Oak Ridge, TN); Deevi, Seetharama C. (Midlothian, VA); Fleischhauer, Grier (Midlothian, VA); Lilly, Jr., A. Clifton (Chesterfield, VA); German, Randall M. (State College, PA)

2000-01-01T23:59:59.000Z

428

Brown - leaves  

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

BPA Residential Low Income Measures and Opportunities Low Income Energy Efficiency Workgroup November 6, 2014 Sarah F. Moore, Residential Lead Courtney Dale, Residential...

429

Brown - leaves  

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

M I N I S T R A T I O N 2 Overview Changes and new opportunities * Weatherization * HVAC * New Construction * Lighting and Appliances * Simple Steps program evolution -New...

430

Experimental investigation of fluidized bed chemical looping combustion of Victorian brown coal using hematite  

Science Journals Connector (OSTI)

Abstract An experimental investigation on chemical looping combustion (CLC) of Victorian brown coal is carried out in a fluidized bed of hematite. The aim of this study is to understand the feasibility of Victorian brown coal CLC as very little technical information is currently available on the process using these coals. The in situ CLC experiments are first performed using a thermogravimetric analyzer (TGA). The TGA results show good performance of hematite as oxygen carrier over five multiple re-dox cycles under CO2 gasification environment. Therefore, further investigation is performed using a bench-scale fluidized bed that operates in a batch mode cyclically with reduction in CO2 environment, and oxidation in air. Several tests have been conducted to assess the impact of different temperatures, particle size of hematite and CO2 concentration in a flowing fluidizing gas medium. It is observed that the hematite particles of 100150?m performed best with respect to carbon conversions that show an increasing trend with increasing temperature and CO2 concentration in the fluidizing gas.

Chiranjib Saha; Sankar Bhattacharya

2014-01-01T23:59:59.000Z

431

Java Collections 2001 D.A. Watt and D.F. Brown 3-1 Solutions to Exercises in Chapter 3  

E-Print Network [OSTI]

Java Collections © 2001 D.A. Watt and D.F. Brown 3-1 Solutions to Exercises in Chapter 3 3 the character array a[left...right] is a palindrome: #12;Java Collections © 2001 D.A. Watt and D.F. Brown 3-2 1

Watt, David A.

432

Early maturation processes in coal. Part 2: Reactive dynamics simulations using the ReaxFF reactive force field on Morwell Brown coal structures  

E-Print Network [OSTI]

Early maturation processes in coal. Part 2: Reactive dynamics simulations using the ReaxFF reactive force field on Morwell Brown coal structures Elodie Salmon a , Adri C.T. van Duin b , François Lorant Brown coal using the ReaxFF reactive force field. We find that these reactive MD simulations

Goddard III, William A.

433

Posters Comparisons of Brightness Temperature Measurements and Calculations Obtained  

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

Posters Comparisons of Brightness Temperature Measurements and Calculations Obtained During the Spectral Radiance Experiment Y. Han, J. B. Snider, and E. R. Westwater National Oceanic and Atmospheric Administration Environmental Research Laboratories/Environmental Technology Laboratory Boulder, Colorado S. H. Melfi National Aeronautics and Space Administration Goddard Space Flight Center Greenbelt, Maryland R. A. Ferrare Hughes STX Corporation Lanham, Maryland Introduction In radiometric remote sensing of the atmosphere, the ability to calculate radiances from underlying state variables is fundamental. To infer temperature and water vapor profiles from satellite- or ground-based radiometers, one must determine cloud-free regions and then calculate clear-sky radiance emerging from the top of the earth's

434

Spin and orbital magnetization loops obtained using magnetic Compton scattering  

SciTech Connect (OSTI)

We present an application of magnetic Compton scattering (MCS) to decompose a total magnetization loop into spin and orbital magnetization contributions. A spin magnetization loop of SmAl{sub 2} was measured by recording the intensity of magnetic Compton scattering as a function of applied magnetic field. Comparing the spin magnetization loop with the total magnetization one measured by a vibrating sample magnetometer, the orbital magnetization loop was obtained. The data display an anti-coupled behavior between the spin and orbital magnetizations and confirm that the orbital part dominates the magnetization.

Itou, M.; Sakurai, Y. [Japan Synchrotron Radiation Research Institute, SPring-8, Hyogo 679-5198 (Japan)] [Japan Synchrotron Radiation Research Institute, SPring-8, Hyogo 679-5198 (Japan); Koizumi, A. [Graduate School of Materials Science, University of Hyogo, Hyogo 678-1297 (Japan)] [Graduate School of Materials Science, University of Hyogo, Hyogo 678-1297 (Japan)

2013-02-25T23:59:59.000Z

435

How to obtain the National Energy Modeling System (NEMS)  

Reports and Publications (EIA)

The National Energy Modeling System (NEMS) NEMS is used by the modelers at the U. S. Energy Information Administration (EIA) who understand its structure and programming. NEMS has only been used by a few organizations outside of the EIA, because most people that requested NEMS found out that it was too difficult or rigid to use. NEMS is not typically used for state-level analysis and is poorly suited for application to other countries. However, many do obtain the model simply to use the data in its input files or to examine the source code.

2013-01-01T23:59:59.000Z

436

Tungsten and tungsten alloy powder metallurgy: Powder production and applications excluding lamps. (Latest citations from the US Patent bibliographic file with exemplary claims). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations of selected patents concerning the preparation of metallic and ceramic powders of tungsten and tungsten alloys, including applications of these materials. The hydrogen reduction of tungsten compounds together with alloying element compounds produce forms with characteristics of high density, hardness, wear resistance, high melting points, and abrasiveness. Topics include production of cathodes, heaters, filament wires, electrical contacts, acoustic absorbers, high-density sheets and coatings, hard penetrators, and tungsten carbide and metallized ceramics. Tungsten halogen lamps are examined in a separate bibliography.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1997-01-01T23:59:59.000Z

437

Tungsten and tungsten alloy powder metallurgy: Powder production and applications excluding lamps. (Latest citations from the US Patent bibliographic file with exemplary claims). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations of selected patents concerning the preparation of metallic and ceramic powders of tungsten and tungsten alloys, including applications of these materials. The hydrogen reduction of tungsten compounds together with alloying element compounds produce forms with characteristics of high density, hardness, wear resistance, high melting points, and abrasiveness. Topics include production of cathodes, heaters, filament wires, electrical contacts, acoustic absorbers, high-density sheets and coatings, hard penetrators, and tungsten carbide and metallized ceramics. (Contains a minimum of 109 citations and includes a subject term index and title list.)

Not Available

1994-04-01T23:59:59.000Z

438

Tungsten and tungsten alloy powder metallurgy: Powder production and applications excluding lamps. (Latest citations from the US Patent database). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations of selected patents concerning the preparation of metallic and ceramic powders of tungsten and tungsten alloys, including applications of these materials. The hydrogen reduction of tungsten compounds together with alloying element compounds produce forms with characteristics of high density, hardness, wear resistance, high melting points, and abrasiveness. Topics include production of cathodes, heaters, filament wires, electrical contacts, acoustic absorbers, high-density sheets and coatings, hard penetrators, and tungsten carbide and metallized ceramics. Tungsten halogen lamps are examined in a separate bibliography. (Contains a minimum of 97 citations and includes a subject term index and title list.)

Not Available

1993-05-01T23:59:59.000Z

439

Tungsten and tungsten alloy powder metallurgy: Powder production and applications excluding lamps. (Latest citations from the US Patent bibliographic file with exemplary claims). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations of selected patents concerning the preparation of metallic and ceramic powders of tungsten and tungsten alloys, including applications of these materials. The hydrogen reduction of tungsten compounds together with alloying element compounds produce forms with characteristics of high density, hardness, wear resistance, high melting points, and abrasiveness. Topics include production of cathodes, heaters, filament wires, electrical contacts, acoustic absorbers, high-density sheets and coatings, hard penetrators, and tungsten carbide and metallized ceramics. Tungsten halogen lamps are examined in a separate bibliography.(Contains 50-250 citations and includes a subject term index and title list.) (Copyright NERAC, Inc. 1995)

NONE

1995-12-01T23:59:59.000Z

440

Tungsten and tungsten alloy powder metallurgy: Powder production and applications excluding lamps. (Latest citations from the US Patent bibliographic file with exemplary claims). Published Search  

SciTech Connect (OSTI)

The bibliography contains citations of selected patents concerning the preparation of metallic and ceramic powders of tungsten and tungsten alloys, including applications of these materials. The hydrogen reduction of tungsten compounds together with alloying element compounds produce forms with characteristics of high density, hardness, wear resistance, high melting points, and abrasiveness. Topics include production of cathodes, heaters, filament wires, electrical contacts, acoustic absorbers, high-density sheets and coatings, hard penetrators, and tungsten carbide and metallized ceramics. Tungsten halogen lamps are examined in a separate bibliography. (Contains a minimum of 115 citations and includes a subject term index and title list.)

NONE

1995-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" 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

Evaluations of temperature measurements in powder-based electron beam additive manufacturing by near-infrared thermography  

Science Journals Connector (OSTI)

Powder-based electron beam additive manufacturing (EBAM) has received an increased attention from different industries for various applications. Process metrology such as part temperature measurements is essential to process model validations as well as process monitoring. However, temperature measurements in EBAM are challenging because of high temperature ranges, extreme gradients and fast transient response, etc. In this study, temperature measurements during the EBAM process were attempted using a near-infrared (NIR) thermal camera. The thermal camera was able to capture the pre-heating, contour melting, and hatch melting events. The best obtained spatial resolution is around 12 m. Moreover, temperature data were processes and analysed to illustrate the process phenomenon, analogy to a moving heat source event. Moreover, from the extracted temperature profiles, a melting range can be identified and utilised for melt pool geometry estimates. It is shown that a typical melt pool in hatch melting from this test is about 1.91 mm long and 0.63 mm wide.

Steven Price; Kenneth Cooper; Kevin Chou

2014-01-01T23:59:59.000Z

442

Generation of nanoparticles from technical powder of the insecticidal bacterium Bacillus thuringiensis var. kurstaki for improving efficacy  

Science Journals Connector (OSTI)

The technical powder of a local isolate of Bacillus thuringiensis (Bt) var. kurstaki namely DOR Bt-1 was subjected to high pressure homogenisation (HPH) to obtain nanoparticles (NPs) ranging 32-1,106 nm as determined through dynamic light scattering. NPs of Bt were also characterised for shape and size through scanning electron microscopy, field emission scanning electron microscopy and transmission electron microscopy that helped in visualising the smallest nanoparticles, i.e., less than even 50 nm. The larger particles comprised mainly Bt spores with a length and width of 1,139 and 813 nm respectively. HPH showed little effect on the spore viability. NPs had a zeta potential above +30 and were stable, resulted in higher mortality of Helicoverpa armigera larvae at a lower dose. Alkali solubilisation of the NPs resulted in higher values of protein and endotoxin quantified through Lowry's method and ELISA respectively. This is indicative of an increased solubility of the toxin in the midgut alkaline fluid of the insect leading to higher mortality coupled with quicker kill. Thus Bt as NPs has brighter prospects for insect pest management with increased speed of kill at lower doses.

K. Santha Murthy; V. Vineela; P.S. Vimala Devi

2014-01-01T23:59:59.000Z

443

Groundwater and surface water supplies in the Williston and Powder River structural basins are necessary for future development in these regions. To help determine  

E-Print Network [OSTI]

#12;i Abstract Groundwater and surface water supplies in the Williston and Powder River structural of streams, and quantify reservoir interaction in the Williston and Powder River structural basins the loss to underlying aquifers was 7790 ft3 /s. Both the Powder River and Williston basins contain gaining

Torgersen, Christian

444

Corrosion inhibitor storage and release property of TiO{sub 2} nanotube powder synthesized by rapid breakdown anodization method  

SciTech Connect (OSTI)

Graphical abstract: Display Omitted Highlights: ? TiO{sub 2} nanotube powders were synthesized by rapid breakdown anodization method. ? Benzotriazole was loaded into the TiO{sub 2} nanotube powders. ? Low pH induced release of benzotriazole from TiO{sub 2} nanotube powders was proved. -- Abstract: Titanium dioxide (TiO{sub 2}) is one of the most studied substances in material science due to its versatile properties and diverse applications. In this study titanium dioxide nanotube powder were synthesized by rapid breakdown anodization (RBA) method. The synthesis involved potentiostatic anodization of titanium foil in 0.1 M HClO{sub 4} electrolyte under an applied voltage of 20 V and rapid stirring. The morphology and the phase of titanium dioxide nanotube powder were studied using field emission scanning electron microscopy, laser Raman spectroscopy and high resolution transmission electron microscopy. Benzotriazole was chosen as model inhibitor to evaluate TiO{sub 2} nanotube powder's corrosion inhibitor loading and releasing properties. The storage and release properties of TiO{sub 2} nanotube powder were studied using UVvisible spectroscopy and thermogravimetric analysis.

Arunchandran, C.; Ramya, S.; George, R.P. [Corrosion Science and Technology Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102 (India)] [Corrosion Science and Technology Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102 (India); Kamachi Mudali, U., E-mail: kamachi@igcar.gov.in [Corrosion Science and Technology Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102 (India)

2013-02-15T23:59:59.000Z

445

Nitrogen Oxides, Sulphur Trioxide and Mercury Emissions during Oxy-Fuel Fluidized Bed Combustion of Victorian Brown Coal  

Science Journals Connector (OSTI)

This study investigates, for the first time, the NOX, N2O, SO3 and Hg emissions from combustion of a Victorian brown coal in a 10 kWth fluidized bed unit under oxy-fuel combustion conditions. Compared to air combustion, lower NOX emissions and higher N2O ...

Bithi Roy; Luguang Chen; Sankar Bhattacharya

2014-11-17T23:59:59.000Z

446

Is the Extended Red Emission due to CO? Philip D. Bennett, Graham M. Harper, and Alexander Brown  

E-Print Network [OSTI]

Is the Extended Red Emission due to CO? Philip D. Bennett, Graham M. Harper, and Alexander Brown. The Extended Red Emission (ERE) is a broad emission feature ob­ served between 5000 and 8000 š A in a large to be correct. The strongest known source of the ERE is the bipolar nebula (the ``Red Rect­ angle'') associated

Harper, Graham

447

STATE OF CALIFORNIA --THE RESOURCES AGENCY Edmund G. Brown Jr., Governor CALIFORNIA ENERGY COMMISSION 1516 Ninth Street Sacramento, California 95814  

E-Print Network [OSTI]

, on paper, and orally at Energy Commission hearings. A. A Brief History of the Energy Commission's BuildingSTATE OF CALIFORNIA -- THE RESOURCES AGENCY Edmund G. Brown Jr., Governor CALIFORNIA ENERGY COMMISSION 1516 Ninth Street Sacramento, California 95814 Main website: www.energy.ca.gov INITIAL STATEMENT

448

STATE OF CALIFORNIA --THE RESOURCES PROVIDER Edmund G. Brown Jr., Governor CALIFORNIA ENERGY COMMISSION 1516 Ninth Street Sacramento, California 95814  

E-Print Network [OSTI]

electronically, on paper, and orally at Energy Commission hearings. A. A Brief History of the Energy Commission1 STATE OF CALIFORNIA -- THE RESOURCES PROVIDER Edmund G. Brown Jr., Governor CALIFORNIA ENERGY COMMISSION 1516 Ninth Street Sacramento, California 95814 Main website: www.energy.ca.gov INITIAL STATEMENT

449

Safety Meeting Minutes, July 2, 2008 Members Present: Randy Walker, Hollis Lundeen, Devin Brakob, Rick Brown, Ann  

E-Print Network [OSTI]

Safety Meeting Minutes, July 2, 2008 Members Present: Randy Walker, Hollis Lundeen, Devin Brakob, Rick Brown, Ann Byer, Steve Hammond, Michelle Ottmar and Vlada Gertseva Ann Byer, Safety Compliance officer from National Marine Fisheries Services came to the meeting and outlined the safety review

450

The specific heat of the cuticle and the morphological differences between the brown and yellow cuticles of hornets  

Science Journals Connector (OSTI)

......screen as various graphs. For calculation of specific heat values...of the brown cuticle, one does not see either the thicker...similar to solid-state electronic devices, with the active...United States Dept of Agric. Handbook No. 552. U.S. Gov. Print......

Jacob S. Ishay; Vitaly Pertsis

2002-11-01T23:59:59.000Z

451

Cadmium tolerance and adsorption by the marine brown alga Fucus vesiculosus from the Irish Sea and the Bothnian Sea  

E-Print Network [OSTI]

Cadmium tolerance and adsorption by the marine brown alga Fucus vesiculosus from the Irish Sea vesiculosus Photosynthesis a b s t r a c t Cadmium (Cd) uptake capacities and Cd tolerance of the marine alga that the Bothnian Sea F. vesicu- losus were more sensitive to Cd exposure than the Irish Sea algae. The algae from

Benning, Liane G.

452

Multi-Seam Well Completion Technology: Implications for Powder River Basin Coalbed Methane Production  

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

Seam Well Completion Seam Well Completion Technology: Implications for Powder River Basin Coalbed Methane Production U.S. Department of Energy Office of Fossil Energy and National Energy Technology Laboratory Strategic Center for Natural Gas September 2003 DOE/NETL-2003/1193 Multi-Seam Well Completion Technology: Implications for Powder River Basin Coalbed Methane Production U.S. Department of Energy National Energy Technology Laboratory (NETL) (Strategic Center for Natural Gas) DOE/NETL-2003/1193 September 2003 DISCLAIMER This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, makes any warranty, express or implied, or assumes any legal

453

Infrared thermography for laser-based powder bed fusion additive manufacturing processes  

SciTech Connect (OSTI)

Additive manufacturing (AM) has the potential to revolutionize discrete part manufacturing, but improvements in processing of metallic materials are necessary before AM will see widespread adoption. A better understanding of AM processes, resulting from physics-based modeling as well as direct process metrology, will form the basis for these improvements. Infrared (IR) thermography of AM processes can provide direct process metrology, as well as data necessary for the verification of physics-based models. We review selected works examining how IR thermography was implemented and used in various powder-bed AM processes. This previous work, as well as significant experience at the National Institute of Standards and Technology in temperature measurement and IR thermography for machining processes, shapes our own research in AM process metrology with IR thermography. We discuss our experimental design, as well as plans for future IR measurements of a laser-based powder bed fusion AM process.

Moylan, Shawn; Whitenton, Eric; Lane, Brandon; Slotwinski, John [National Institute of Standards and Technology, 100 Bureau Drive, Gaithersburg, MD 20899 (United States)

2014-02-18T23:59:59.000Z

454

Consolidation and high strain rate mechanical behavior of nanocrystalline tantalum powder  

Science Journals Connector (OSTI)

High ductility and strength exhibited in nanograined materials can potentially be exploited in explosively formed penetrator liner applications. Both coarse and nanocrystalline tantalum powder were consolidated by Plasma Pressure Compaction (P2C) to study the effect of grain size on dynamic compression properties. The powders were consolidated rapidly with 1 minute of isothermal holding time to retain initial microstructure. The P2C consolidated specimens were cut by electric discharge machining (EDM), polished for SEM characterization, and tested in dynamic compression using a Kolsky apparatus. The effect of grain size on yield stress and strain was investigated at various strain rates for a coarse grained and a nanograined specimen. Especially, the high strain rate response of nanocrystalline tantalum is discussed in this paper.

Sang H. Yoo; T.S. Sudarshan; Krupa Sethuram; Ghatu Subhash; R.J. Dowding

1999-01-01T23:59:59.000Z

455

Innovative Powder Processing of Oxide Dispersion Strengthened ODS Ferritic Stainless Steels  

SciTech Connect (OSTI)

An innovative gas atomization reaction synthesis technique was employed as a viable method to dramatically lower the processing cost for precursor oxide dispersion forming ferritic stainless steel powders (i.e., Fe-Cr-(Hf,Ti)-Y). During this rapid solidification process the atomized powders were enveloped by a nano-metric Cr-enriched metastable oxide film. Elevated temperature heat treatment was used to dissociate this metastable oxide phase through oxygen exchange reactions with Y-(Hf,Ti) enriched intermetallic compound precipitates. These solid state reactions resulted in the formation of highly stable nano-metric mixed oxide dispersoids (i.e., Y-Ti-O or Y-Hf-O) throughout the alloy microstructure. Subsequent high temperature (1200 C) heat treatments were used to elucidate the thermal stability of each nano-metric oxide dispersoid phase. Transmission electron microscopy coupled with X-ray diffraction was used to evaluate phase evolution within the alloy microstructure.

Rieken, Joel; Anderson, Iver; Kramer, Matthew

2011-04-01T23:59:59.000Z

456

Irradiation creep of nano-powder sintered silicon carbide at low neutron fluences  

SciTech Connect (OSTI)

The irradiation creep behavior of nano-powder sintered silicon carbide was investigated using the bend stress relaxation method under neutron irradiation up to 1.9 dpa. The creep deformation was observed at all temperatures ranging from 380 to 1180 C mainly from the irradiation creep but with the increasing contributions from the thermal creep at higher temperatures. Microstructural observation and data analysis were performed.

Koyanagi, Takaaki [ORNL; Shimoda, Kazuya [Kyoto University, Japan; Kondo, Sosuke [Kyoto University, Japan; Hinoki, Tatsuya [Kyoto University, Japan; Ozawa, Kazumi [ORNL; Katoh, Yutai [ORNL

2014-01-01T23:59:59.000Z

457

Numerical Simulation of Cold Pressing of Armstrong CP-Ti Powders  

SciTech Connect (OSTI)

Numerical simulation results for the cold pressing of Armstrong CP-Ti Powders are presented. The computational model was implemented in the commercial finite element program ABAQUSTM. Several simulation cases were conducted for cylindrical samples with different friction coefficients and different compaction pressures, under both single-action and dual-action uniaxial pressing. Numerical simulation results for the density distribution are compared against experimental data in order to validate the computational model.

Sabau, Adrian S [ORNL] [ORNL; Gorti, Sarma B [ORNL] [ORNL; Peter, William H [ORNL] [ORNL; Chen, Wei [ORNL] [ORNL; Yamamoto, Yukinori [ORNL] [ORNL

2012-01-01T23:59:59.000Z

458

Sintering and devitrification of glass-powder compacts in the akermanitegehlenite system  

Science Journals Connector (OSTI)

The sintering and devitrification behavior of glass-powder compacts with four compositions, Ca2Mg0.5Al1.0Si1.5O7, Ca2Mg0.6Al0.8Si1.6O7, Ca2Mg0.7Al0.6Si1.7O7, and Ca2Mg0.8Al0.4Si1.8O7, corresponding to akermanite...

Allu Amarnath Reddy; Dilshat U. Tulyaganov; Ashutosh Goel

2013-06-01T23:59:59.000Z

459

Investigation of a high pressure implosive technique for metal powder compaction  

E-Print Network [OSTI]

Permanent Address ? 314 Brookside Dr. , Bryan, Texas 77801 Donald R. Garrett received his Bachelor of Science degree from the United States Military Academy in 1958. Mr. Garrett was a military training instructor in the U. S. A. F. and a jet aircraft in...INVESTIGATION OF A HIGH PRESSURE IMPLOSIVE TECHNIQUE FOR METAL POWDER COMPACTION A Thesis DONALD RICHARD GARRETT Submitted to the Graduate College of Texas A&M University in partial fulfillment of the requirement for the degree of MASTER...

Garrett, Donald Richard

1970-01-01T23:59:59.000Z

460

Speakers: Adam Sieminski, Deutsche Bank Stephen P. A. Brown, Resources for the Future  

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

5: "Energy and the Economy" 5: "Energy and the Economy" Speakers: Adam Sieminski, Deutsche Bank Stephen P. A. Brown, Resources for the Future Donald L. Paul, University of Southern California Energy Institute David Sandalow, DOE Christof Rühl, Group Chief Economist, BP [Note: Recorders did not pick up introduction of panel (see biographies for details on the panelists) or introduction of session.] Adam: Microphone. So, we've lost a little bit of time because of all of the sessions running a bit over, but here is how we're going to make that up. I had about 12 minutes worth of slides that we're going to abandon. Isn't that great? We get to hear from the panelists rather than me. Now, my name is Adam Sieminski. I'm the Chief Energy Economist for Deutsche Bank. Don't let that intimidate you. I'm really a civil

Note: This page contains sample records for the topic "brown powder obtained" 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

STATE OF CALIFORNIA - NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor  

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

NATURAL RESOURCES AGENCY EDMUND G. BROWN JR., Governor CALIFORNIA ENERGY COMMISSION 1516 NINTH STREET SACRAMENTO, CA 95814-5512 WWIN.energy.ca.gov March 28, 2012 Lamont Jackson Office of Electricity Delivery and Energy Reliability Mail Code: OE-20 U.S. Department of Energy 1000 Independence Avenue SW Washington, DC 20585 Lamont.Jackson@hg.doe.gov Dear Mr. Jackson: The California Energy Commission staff thanks you for the opportunity to provide comments on DOE's Request for Information (RFI) on the Rapid Response Team for Transmission Docket No. RRTT-IR-001. The RFI focuses on learning how to make the development times for generation and transmission more commensurate with one another. In the RFI, the DOE highlighted three problems that may arise in the

462

Microsoft PowerPoint - Brown_CBP_Codes_and_CodeIntegration_kgb_final.ppt  

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

Partnership: Partnership: Demonstration of Coupling and Code Integration Kevin G. Brown, Ph.D. PA Community of Practice Technical Exchange Richland, WA 13-14 April 2010 Cementitious Barriers Partnership 13 April 2010 Linking Prototype Cases to Performance Models through System Abstraction and Validated by Laboratory and Field Testing Cementitious Barriers Partnership Sulfate Attack as a "Proof of Principle" for Coupling of Phenomena 13 April 2010 THAMES (NIST) Virtual "micro-probe" of microstructure * Constructs time-dependent 3-D virtual microstructures of a cementitious binder during hydration or degradation * Computes important engineering properties of a concrete made from a binder at prescribed times Planned model improvements * Embed geochemical modeling code (GEMS) into microstructure

463

Hanbury-Brown-Twiss search for new states of matter in A+A collisions  

SciTech Connect (OSTI)

A method allowing studies of the hadronic matter at the early evolution stage in A+A collisions is developed. It is based on an interferometry analysis of approximately conserved values such as the averaged phase-space density (APSD) and the specific entropy of thermal pions. The plateau found in the APSD behavior vs collision energy at Super Proton synchroton (SPS) level is associated, apparently, with the deconfinement phase transition at low SPS energies; a saturation of this quantity at the energies available at BNL's-Relativistic Heavy Ion Collider (RHIC) indicates the limiting Hagedorn temperature for hadronic matter. It is shown that if the cubic power of the effective temperature of pion transverse spectra grows with energy similarly to the rapidity density (which is roughly consistent with experimental data), then the interferometry volume is inversely proportional to the pion APSD, which is nearly constant because of the limiting Hagedorn temperature. This sheds light on the Hanbury-Brown-Twiss puzzle.

Akkelin, S.V.; Sinyukov, Yu.M. [Bogolyubov Institute for Theoretical Physics, Kiev 03143, Metrologichna 14b (Ukraine)

2006-03-15T23:59:59.000Z

464

Field Testing of Activated Carbon Injection Options for Mercury Control at TXU's Big Brown Station  

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

Field TesTing oF AcTivATed cArbon Field TesTing oF AcTivATed cArbon injecTion opTions For Mercury conTrol AT TXu's big brown sTATion Background The 2005 Clean Air Mercury Rule will require significant reductions in mercury emissions from coal-fired power plants. Lignite coal is unique because of its highly variable ash content (rich in alkali and alkaline-earth elements), high moisture levels, low chlorine content, and high calcium content. Unique to Texas lignite coals are relatively high iron and selenium concentrations. When combusting Texas lignite coals, up to 80 percent of the mercury in the flue gas is present as elemental mercury, which is not readily captured by downstream pollution control devices. To better understand the factors that influence mercury control at units firing

465

An electrochemical method suitable for preparing nine metal-nitride powders  

SciTech Connect (OSTI)

We present an electrochemical method that is suitable for the preparation of metal-nitride ceramic materials that is both simple and general. We begin with a single-compartment electrochemical cell containing suitable metal (M) anodes and cathodes (M=Al, Mo, Nb, Ni, Ti, V, W, Zn, or Zr) and a NH{sub 3}/NH{sub 4}X (X=Br or Cl) electrolyte solution. Application of a sufficiently high voltage results in oxidation and dissolution of M to M{sup n+} at the anode and reduction of NH{sub 3} to NH{sub 2}- at the cathode. When M=Al, this results in formation of an insoluble inorganic polymer, which can subsequently be calcined above 600{degrees}C to yield phase-pure AlN. For some of the other metals, a simple ammoniated metal ion is formed at the anode, but calcination of this material also leads to the corresponding metal nitride. The phases and morphologies of the powders depends strongly on the calcining conditions. The important point is that this method is general for the preparation of metal-nitride powders even though the pathway that leads to the powders is metal-dependent. This talk will focus primarily on the preparation of AlN, which is an important packaging material for the electronics industry, and NbN, which is a superconductor (T{sub c}{approximately}17 K) with important technological applications.

Wade, T.; Crooks, R.M. [Texas A& M Univ., College Station, TX (United States)

1995-12-31T23:59:59.000Z

466

Soft magnetic composites manufactured by warm co-extrusion of bulk metallic glass and steel powders  

SciTech Connect (OSTI)

Soft magnetic composites of Fe-based bulk metallic glass and low-alloy steel have been manufactured by warm co-extrusion of precursor powders at temperatures within the supercooled liquid region of the glass. Composites were manufactured with amorphous volume fractions of 75%, 67%, and 100%. Full consolidation of the constituent powders was observed with the bulk metallic glass remaining substantially amorphous. The composite electrical resistivity was observed to be anisotropic with a resistivity of 79 {mu}{Omega} cm measured transverse to the extrusion axis in a sample with 75% amorphous volume fraction. A 0-3 connectivity pattern with the low-resistivity steel phase embedded in a 3-dimensionally connected high-resistivity bulk metallic glass phase was observed with scanning electron microscopy. This confirms that the flow characteristics of the bulk metallic glass and the steel powders were comparable during extrusion at these temperatures. The saturation magnetization of 1.3 T was consistent with the volume weighted average of the saturation magnetization of the two phases. A relatively high quasistatic coercivity of 8 Oe was measured and is likely due to slight crystallization of the bulk metallic glass as well as domain wall pinning at prior particle boundaries. Careful control of the thermal environment during the extrusion process is required to minimize glass crystallization and achieve the desired balance of magnetic and electrical properties.

Johnson, Francis; Raber, Thomas R.; Zabala, Robert J.; Buresh, Steve J.; Tanico, Brian [GE Global Research, Ceramic and Metallurgy Technologies, One Research Circle, Niskayuna, New York 12309 (United States)

2013-05-07T23:59:59.000Z

467

IONIZATION IN ATMOSPHERES OF BROWN DWARFS AND EXTRASOLAR PLANETS. III. BREAKDOWN CONDITIONS FOR MINERAL CLOUDS  

SciTech Connect (OSTI)

Electric discharges were detected directly in the cloudy atmospheres of Earth, Jupiter, and Saturn, are debatable for Venus, and indirectly inferred for Neptune and Uranus in our solar system. Sprites (and other types of transient luminous events) have been detected only on Earth, and are theoretically predicted for Jupiter, Saturn, and Venus. Cloud formation is a common phenomenon in ultra-cool atmospheres such as in brown dwarf and extrasolar planetary atmospheres. Cloud particles can be expected to carry considerable charges which may trigger discharge events via small-scale processes between individual cloud particles (intra-cloud discharges) or large-scale processes between clouds (inter-cloud discharges). We investigate electrostatic breakdown characteristics, like critical field strengths and critical charge densities per surface, to demonstrate under which conditions mineral clouds undergo electric discharge events which may trigger or be responsible for sporadic X-ray emission. We apply results from our kinetic dust cloud formation model that is part of the DRIFT-PHOENIX model atmosphere simulations. We present a first investigation of the dependence of the breakdown conditions in brown dwarf and giant gas exoplanets on the local gas-phase chemistry, the effective temperature, and primordial gas-phase metallicity. Our results suggest that different intra-cloud discharge processes dominate at different heights inside mineral clouds: local coronal (point discharges) and small-scale sparks at the bottom region of the cloud where the gas density is high, and flow discharges and large-scale sparks near, and maybe above, the cloud top. The comparison of the thermal degree of ionization and the number density of cloud particles allows us to suggest the efficiency with which discharges will occur in planetary atmospheres.

Helling, Ch.; Jardine, M.; Stark, C. [SUPA, School of Physics and Astronomy, University of St. Andrews, St. Andrews KY16 9SS (United Kingdom); Diver, D., E-mail: ch@leap2010.eu [SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ (United Kingdom)

2013-04-20T23:59:59.000Z

468

Obtaining slow beam spills at the SSC collider  

SciTech Connect (OSTI)

There is substantial interest in providing slow-spill external proton beams in parallel with ``interaction running`` at the 20 TeV SSC collider. The proposal is to cause a flux of particles to impinge on a target consisting of a bent crystal extraction channel. Additionally, a slow spill onto a conventional internal target could be used as a source of secondary beams for physics or test purposes and might also be used for B-physics as proposed for HERA. The ``natural`` beam loss rates from elastic and diffractive beam gas scattering and IP collisions are not sufficient to provide suitably intense external proton beams. To prevent loss of luminosity, the rf excitation is non-linear and preferentially blows up the halo of the beam. The ``target`` is to be located at a region of high dispersion forcing particles at the edge of the momentum space onto the target. T. Lohse in this workshop has described a proposed internal target to be used at HERA that will not employ rf excitation but will use the finite loss rates observed at the HERA machine. The Hera losses are caused by a variety of sources in addition to beam gas scattering or IP interactions. Initially, the beam lifetime at HERA was too short to obtain satisfactory integrated luminosities. Subsequently, through careful attention to detail, the beam lifetime was increased to > 20 hours. Even with these changes, present loss rates provide the required intensity onto an internal target. The Tevatron and SPS proton anti-proton colliders have had similar experiences with their investigations of loss rates and also find that beam lifetimes may be substantially shorter than expected solely from beam gas and IP interactions. This paper proposes deliberately introducing controlled errors li

Ritson, D.

1993-08-01T23:59:59.000Z

469

Browning during biological aging and commercial storage of Cava sparkling wine and the use of 5-HMF as a quality marker  

Science Journals Connector (OSTI)

Abstract The quality of sparkling wines can deteriorate due to browning, which is mainly attributed to the oxidation of phenols. The aim of this study was to assess the browning (measured as the absorbance at 420nm) of two real series of Cava sparkling wines (A and B) during aging sur lie (biological aging, with lees) and commercial storage (without lees) under real conditions, over almost two years, since lees may reduce the effect by adsorbing the precursors and the browning compounds. The role of phenolics and 5-HMF (5-hydroxymethylfurfural) was also assessed. A significant linear increment in browning was observed in all four Cava series in both kinds of aging. No differences in browning were observed between the two types of aging (biological vs. commercial storage). In contrast, the 5-HMF content increased linearly with time although its rate of formation was dependent on the type of aging (biological or storage). The phenolic compounds trans-coutaric and p-coumaric increased significantly with time and were significantly correlated with browning. The most aged sparkling wines (Gran Reserva) had highest A420 and 5-HMF values. 5-HMF was correlated with browning and can be used as a quality marker.

A. Serra-Cayuela; M.A. Aguilera-Curiel; M. Riu-Aumatell; S. Buxaderas; E. Lpez-Tamames

2013-01-01T23:59:59.000Z

470

Nickel-cobalt alloy nanosheets obtained from reductive hydrothermal-treatment of nickel-cobalt hydroxide carbonate  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer An anionic layered material, nickel-cobalt hydroxide carbonate was synthesized. Black-Right-Pointing-Pointer Reductive hydrothermal-treatment of the layered precursor produced an alloy. Black-Right-Pointing-Pointer The alloy is a bimetallic nanostructured nickel-cobalt and a soft magnet material. -- Abstract: Nickel-cobalt hydroxide carbonate, a layered material was synthesized by the co-precipitation method using urea as precipitant agent. This anionic layered material with hexagonal structure is constructed from nickel and cobalt ions within the layers and carbonate anions between the layers. Nickel-cobalt alloy with pure cubic phase was obtained by a reductive hydrothermal-treatment of the layered precursor. Powder X-ray diffraction pattern and Fourier transform infrared spectroscopy confirmed the formation of the initial layered material and its metallic alloy product. That is, the nickel-cobalt alloy has really produced via a wet chemical route for the first time. Magnetic measurement revealed that the alloy sample is a soft magnet material.

Ghotbi, Mohammad Yeganeh, E-mail: yeganehghotbi@gmail.com [Nanomaterials and Nanotechnology Program, Ceramic Engineering Department, Faculty of Engineering, Malayer University, Malayer (Iran, Islamic Republic of); Jolagah, Ali; Afrasiabi, Hasan-ali [Nanomaterials and Nanotechnology Program, Ceramic Engineering Department, Faculty of Engineering, Malayer University, Malayer (Iran, Islamic Republic of)] [Nanomaterials and Nanotechnology Program, Ceramic Engineering Department, Faculty of Engineering, Malayer University, Malayer (Iran, Islamic Republic of)

2012-03-15T23:59:59.000Z

471

Discovery of a Very Nearby Brown Dwarf to the Sun: A Methane Rich Brown Dwarf Companion to the Low Mass Star SCR 1845-6357  

E-Print Network [OSTI]

We present VLT/NACO SDI images of the very nearby star SCR 1845-6357 (hereafter SCR 1845). SCR 1845 is a recently discovered (Hambly et al. 2004) M8.5 star just 3.85 pc from the sun (Henry et al. 2006). Using the capabilities of the unique SDI device, we discovered a substellar companion to SCR 1845 at a separation of 4.5 AU (1.170''+-0.003'' on the sky) and fainter by 3.57+-0.057 mag in the 1.575 um SDI filter. This substellar companion has an H magnitude of 13.16+0.31-0.26 (absolute H magnitude of 15.30+0.31-0.26), making it likely the brightest mid-T dwarf known. The unique Simultaneous Differential Imager (SDI) consists of 3 narrowband filters placed around the 1.6 um methane absorption feature characteristic of T-dwarfs (Teff SCR 1845-6357B. For an age range of 100 Myr - 10 Gyr and spectral type range of T4.5-T6.5, we find a mass range of 9 - 65 MJup for SCR 1845B from the Baraffe et al. 2003 COND models. SCR 1845AB is the 24th closest stellar system to the Sun (at 3.85 pc); the only brown dwarf system closer to the Sun is Eps Indi Ba-Bb (at 3.626 pc). In addition, this is the first T-dwarf companion discovered around a low mass star.

B. A. Biller; M. Kasper; L. M. Close; W. Brandner; S. Kellner

2006-01-19T23:59:59.000Z

472

Lithium cobalt(II) pyrophosphate, Li[subscript 1.86]CoP[subscript 2]O[subscript 7], from synchrotron X-ray powder data  

SciTech Connect (OSTI)

Structure refinement of high-resolution X-ray powder diffraction data of the title compound gave the composition Li{sub 1.865}CoP{sub 2}O{sub 7}, which is also verified by the ICP measurement. Two Co sites exist in the structure: one is a CoO{sub 5} square pyramid and the other is a CoO{sub 6} octahedron. They share edges and are further interconnected through P{sub 2}O{sub 7} groups, forming a three-dimensional framework, which exhibits different kinds of intersecting tunnels containing Li cations and could be of great interest in Li ion battery chemistry. The structure also exhibits cation disorder with 13.5% Co residing at the lithium (Li1) site. Co seems to have an average oxidation state of 2.135, as obtained from the strutural stochiometry that closely supports the magnetic susceptibility findings.

Zhou, Hui; Upreti, Shailesh; Chernova, Natasha A.; Whittingham, M.Stanley (SUNY-Binghamton)

2011-11-17T23:59:59.000Z

473

A six-axis robotic sample changer for high-throughput neutron powder diffraction and texture measurements  

Science Journals Connector (OSTI)

A new six-axis robotic sample changer for neutron powder diffraction experiments, including texture measurements, has enabled a novel set of experiments to be performed at the High-Pressure Preferred Orientation diffractometer at the Lujan Neutron Scattering Center.

Losko, A.S.

2014-11-18T23:59:59.000Z

474

Slurry Nebulization-Inductively Coupled Plasma Mass Spectrometry with Solution Calibration for Determination of Ultratrace Boron in High Pure Nuclear Graphite Powder  

Science Journals Connector (OSTI)

Slurry nebulization-inductively coupled plasma mass spectrometry (ICP-MS) was developed for the direct determination of trace boron (B) in high-purity graphite powders. After the graphite powders were ground and sifted, the particle size of graphite was collected less than 5 ?m. Polyvinylpyrrolidone (PVP) was used as the dispersant in slurry preparation. The optimal mass ratio of PVP to the graphite was found to be 0.5. Well-proportioned and stable slurry solution was obtained by magnetic stirrer. 0.1 M NH4OH as the aqueous medium could provide the optimal pH of 10 for the stable slurry and eliminate the memory effect of B. ICP-MS was operated in a higher resolution mode (0.6 amu) to eliminate the interference with the matrix 12C by peak tailing. Oxygen was added into the plasma at a flow rate of 60 mL min?1 to resolve carbon deposition on the sampler and skimmer cones and accelerate particle dissociation in the plasma. External calibration with aqueous solution standards was established for quantification. Beryllium was chosen as the internal standard to evaluate the efficiency of matrix effect correction. A correlation coefficient of 0.9995 was obtained for B concentration ranging 2200 ?g L?1. The detection limit (3S) of B was 0.095 ?g g?1. As a practical application, the proposed method was used for the determination of trace B in four nuclear graphite samples (claimed 99.999% purity), with the satisfactory recoveries for the spike tests in the range of 97.2%103.1%.

Xin-Li LIU; Tai-Cheng DUAN; Yi HAN; Xiao-Yu JIA; Wei-Na ZHANG; Hang-Ting CHEN

2010-01-01T23:59:59.000Z

475

Final report for the ASC gas-powder two-phase flow modeling project AD2006-09.  

SciTech Connect (OSTI)

This report documents activities performed in FY2006 under the ''Gas-Powder Two-Phase Flow Modeling Project'', ASC project AD2006-09. Sandia has a need to understand phenomena related to the transport of powders in systems. This report documents a modeling strategy inspired by powder transport experiments conducted at Sandia in 2002. A baseline gas-powder two-phase flow model, developed under a companion PEM project and implemented into the Sierra code FUEGO, is presented and discussed here. This report also documents a number of computational tests that were conducted to evaluate the accuracy and robustness of the new model. Although considerable progress was made in implementing the complex two-phase flow model, this project has identified two important areas that need further attention. These include the need to compute robust compressible flow solutions for Mach numbers exceeding 0.35 and the need to improve conservation of mass for the powder phase. Recommendations for future work in the area of gas-powder two-phase flow are provided.

Evans, Gregory Herbert; Winters, William S.

2007-01-01T23:59:59.000Z

476

Effect of reductant and PVP on morphology and magnetic property of ultrafine Ni powders prepared via hydrothermal route  

SciTech Connect (OSTI)

Graphical abstract: The ultrafine Ni powders with the shapes including sphere, pearl-string, leaf, fish-bone, hexagonal sheet and silknet were prepared through one-step hydrothermal reduction using different reductants. Their saturation magnetization, remanent magnetization and coercivity sequentially increase, and the coercivity of hexagonal sheet-like Ni powders increases by 25% compared with the Ni bulk counterpart. - Highlights: The ultrafine Ni powders with various shapes of sphere, fish-bone, hexagonal sheet, etc. Facile and one-step hydrothermal reduction using three reductants and PVP additive was developed. Magnetic properties of the ultrafine Ni powders with different shapes were measured. Compared with bulk Ni material, coercivity of hexagonal sheet Ni increases by 25%. The formation mechanism of the shapes was suggested. - Abstract: The ultrafine nickel particles with different shapes including sphere, pearl-string, leaf, fish-bone, hexagonal sheet and silknet were prepared through one-step hydrothermal reduction using hydrazine hydrate, sodium hypophosphite and ethylene glycol as reductants, polyvinylpyrrolidone as structure-directing agent. It has been verified with the characterization of X-ray powder diffraction and transmission/scanning electronic microscopy that as-prepared products belong to face-centered cubic structure of nickel microcrystals with high purity and fine dispersity. The magnetic hysteresis loops measured at room temperature reveal that the values of saturation magnetization, remanent magnetization and coercivity rise sequentially from silknet, sphere to hexagonal sheet. In comparison with nickel bulk counterpart, the coercivity of the hexagonal sheet nickel powders increases by 25%.

Zhang, Jun, E-mail: j-zhang@126.com; Wang, Xiucai; Li, Lili; Li, Chengxuan; Peng, Shuge

2013-10-15T23:59:59.000Z

477

Effects of alien and intraspecies cytoplasms on manifestation of nuclear genes for wheat resistance to brown rust: II. Specificity of cytoplasm influence on different Lr genes  

SciTech Connect (OSTI)

Specificity of expression of the major nuclear genes Lr to two brown rust clones in hybrids with the same maternal cytoplasm was analyzed. It was evaluated by a resistant: susceptible ratio in the F{sub 2}. Reciprocal hybrids were obtained from the cross between the progeny of homozygous susceptible plants of the cultivar Penjamo 62 and its alloplasmatic lines carrying cytoplasms of Triticum dicoccoides var. fulvovillosum, Aegilops squarrosa var. typical, Agropyron trichophorum, and isogenic lines of the cultivar Thatcher (Th) with the Lr1, Lr9, Lr15, and Lr19 genes. It was shown that the effect of the Lr1 gene in the cytoplasm of cultivar Thatcher and in eu-, and alloplasmatic forms of Penjamo 62 was less expressed than that of other Lr genes. Cytoplasm of the alloplasmatic line (dicoccoides)-Penjamo 62 was the only exception: in the F{sub 2}, hybrids with Th (Lr1) had a higher yield of resistant forms than those with Th (Lr15). In the hybrid combinations studied, expression and/or transmission of the Lr19 gene was more significant than that of other genes. This gene had no advantages over Lr15 and Lr19 only in cytoplasm of the alloplasmatic line (squarrosa)-Penjamo 62. In certain hybrid cytoplasms, the display of the Lr1, Lr15, and Lr19 genes, in contrast to Lr9, varied with the virulence of the pathogen clones. 15 refs., 5 tabs.

Voluevich, E.A.; Buloichik, A.A.; Palilova, A.N. [Institute of Genetics and Cytology, Minsk (Belarus)

1995-04-01T23:59:59.000Z

478

Senior Obama Administration Officials to Join Governor Brown, Mayor Garcetti, Other Leaders in L.A. for Climate Task Force Meeting  

Broader source: Energy.gov [DOE]

On Thursday, February 13th, senior Obama Administration officials will join California Governor Jerry Brown, Los Angeles Mayor Eric Garcetti and state, local and tribal leaders from across the country for a media availability at Los Angeles City Hall

479

Powder Metallurgy of Uranium Alloy Fuels for TRU-Burning Reactors Final Technical Report  

SciTech Connect (OSTI)

Overview Fast reactors were evaluated to enable the transmutation of transuranic isotopes generated by nuclear energy systems. The motivation for this was that TRU isotopes have high radiotoxicity and relatively long half-lives, making them unattractive for disposal in a long-term geologic repository. Fast reactors provide an efficient means to utilize the energy content of the TRUs while destroying them. An enabling technology that requires research and development is the fabrication metallic fuel containing TRU isotopes using powder metallurgy methods. This project focused upon developing a powder metallurgical fabrication method to produce U-Zr-transuranic (TRU) alloys at relatively low processing temperatures (500C to 600C) using either hot extrusion or alpha-phase sintering for charecterization. Researchers quantified the fundamental aspects of both processing methods using surrogate metals to simulate the TRU elements. The process produced novel solutions to some of the issues relating to metallic fuels, such as fuel-cladding chemical interactions, fuel swelling, volatility losses during casting, and casting mold material losses. Workscope There were two primary tasks associated with this project: 1. Hot working fabrication using mechanical alloying and extrusion Design, fabricate, and assemble extrusion equipment Extrusion database on DU metal Extrusion database on U-10Zr alloys Extrusion database on U-20xx-10Zr alloys Evaluation and testing of tube sheath metals 2. Low-temperature sintering of U alloys Design, fabricate, and assemble equipment Sintering database on DU metal Sintering database on U-10Zr alloys Liquid assisted phase sintering on U-20xx-10Zr alloys Appendices Outline Appendix A contains a Fuel Cycle Research & Development (FCR&D) poster and contact presentation where TAMU made primary contributions. Appendix B contains MSNE theses and final defense presentations by David Garnetti and Grant Helmreich outlining the beginning of the materials processing setup. Also included within this section is a thesis proposal by Jeff Hausaman. Appendix C contains the public papers and presentations introduced at the 2010 American Nuclear Society Winter Meeting. Appendix AMSNE theses of David Garnetti and Grant Helmreich and proposal by Jeff Hausaman A.1 December 2009 Thesis by David Garnetti entitled Uranium Powder Production Via Hydride Formation and Alpha Phase Sintering of Uranium and Uranium-Zirconium Alloys for Advanced Nuclear Fuel Applications A.2 September 2009 Presentation by David Garnetti (same title as document in Appendix B.1) A.3 December 2010 Thesis by Grant Helmreich entitled Characterization of Alpha-Phase Sintering of Uranium and Uranium-Zirconium Alloys for Advanced Nuclear Fuel Applications A.4 October 2010 Presentation by Grant Helmreich (same title as document in Appendix B.3) A.5 Thesis Proposal by Jeffrey Hausaman entitled Hot Extrusion of Alpha Phase Uranium-Zirconium Alloys for TRU Burning Fast Reactors Appendix BExternal presentations introduced at the 2010 ANS Winter Meeting B.1 J.S. Hausaman, D.J. Garnetti, and S.M. McDeavitt, Powder Metallurgy of Alpha Phase Uranium Alloys for TRU Burning Fast Reactors, Proceedings of 2010 ANS Winter Meeting, Las Vegas, Nevada, USA, November 7-10, 2010 B.2 PowerPoint Presentation Slides from C.1 B.3 G.W. Helmreich, W.J. Sames, D.J. Garnetti, and S.M. McDeavitt, Uranium Powder Production Using a Hydride-Dehydride Process, Proceedings of 2010 ANS Winter Meeting, Las Vegas, Nevada, USA, November 7-10, 2010 B.4. PowerPoint Presentation Slides from C.3 B.5 Poster Presentation from C.3 Appendix CFuel cycle research and development undergraduate materials and poster presentation C.1 Poster entitled Characterization of Alpha-Phase Sintering of Uranium and Uranium-Zirconium Alloys presented at the Fuel Cycle Technologies Program Annual Meeting C.2 April 2011 Honors Undergraduate Thesis by William Sames, Research Fellow, entitled Uranium Metal Powder Production, Particle Dis

Sean M. McDeavitt

2011-04-29T23:59:59.000Z

480

On the limiting behavior of the Brown-York quasi-local mass in asymptotically hyperbolic manifolds  

E-Print Network [OSTI]

We show that the limit at infinity of the vector-valued Brown-York-type quasi-local mass along any coordinate exhaustion of an asymptotically hyperbolic $3$-manifold satisfying the relevant energy condition on the scalar curvature has the conjectured causal character. Our proof uses spinors and relies on a Witten-type formula expressing the asymptotic limit of this quasi-local mass as a bulk integral which manifestly has the right sign under the above assumptions. In the spirit of recent work by Hijazi, Montiel and Raulot, we also provide another proof of this result which uses the theory of boundary value problems for Dirac operators on compact domains to show that a certain quasi-local mass, which converges to the Brown-York mass in the asymptotic limit, has the expected causal character under suitable geometric assumptions.

Ezequiel Barbosa; Levi Lopes de Lima; Frederico Giro

2014-07-02T23:59:59.000Z

Note: This page contains sample records for the topic "brown powder obtained" from the National Library of EnergyBeta (NLEBeta).
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they are not comprehensive nor are they the most current set.
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481

Java Collections 2001 D.A. Watt and D.F. Brown 10-1 Solutions to Exercises in Chapter 10  

E-Print Network [OSTI]

Java Collections © 2001 D.A. Watt and D.F. Brown 10-1 Solutions to Exercises in Chapter 10 10 the subtree whose topmost node is top (recursive version): #12;Java Collections © 2001 D.A. Watt and D.max(depth(top.left), depth(top.right)); } #12;Java Collections © 2001 D.A. Watt and D.F. Brown 10-3 public static Object get

Watt, David A.

482

A review of "The Sale of the Century: Artistic Relations between Spain and Great Britain, 1604-1655." by Jonathan Brown and John Elliott, eds.  

E-Print Network [OSTI]

. Jonathan Brown and John Elliott, eds. The Sale of the Century: Ar- tistic Relations between Spain and Great Britain, 1604?1655. Madrid: Yale University Press and Museo Nacional del Prado, 2002. 315 pp. $65 hardback. Review by ELIZABETH R. WRIGHT..., UNIVERSITY OF GEORGIA. Art historian Jonathan Brown and historian John Elliott have joined forces to provide an indispensable guide to the political and artistic relationship between Spain and England in the first half of the seventeenth century. Though...

Elizabeth R. Wright

2003-01-01T23:59:59.000Z

483

Co-generation of electricity and heat from combustion of wood powder utilizing thermophotovoltaic conversion  

SciTech Connect (OSTI)

The development of a thermophotovoltaic converter that uses combustion of wood powder as energy source has started with development of the combustion source. During the last few months, we have constructed and tested a feeding mechanism and a combustion chamber that seem very promising. We manage to keep a 10 kW flame steadily burning for several minutes at the time, generating a temperature exceeding 1400 K. The plans for continued development of this and other components of the converter are discussed in the paper. {copyright} {ital 1995} {ital American} {ital Institute} {ital of} {ital Physics}.

Broman, L. [Solar Energy Research Center, University College of Falun/Borlaenge, P.O. Box 10044, S-781 10 Borlaenge, Sweden, Phone +46 2437 3747, fax 3750, e-mail lbratt.hfb.se (Sweden); Marks, J. [Department of Operational Efficiency, Swedish University of Agricultural Sciences S-776 98 Garpenberg, Sweden, Phone +46 2252 6068, fax 2162 (Sweden)

1995-01-05T23:59:59.000Z

484

What explains the increased utilization of Powder River Basin coal in electric power generation?  

SciTech Connect (OSTI)

This article examines possible explanations for increased utilization of Powder River Basin (PRB) coal in electric power generation that occurred over the last two decades. Did more stringent environmental policy motivate electric power plants to switch to less polluting fuels? Or, did greater use of PRB coal occur because relative price changes altered input markets in favor of this fuel. A key finding is that factors other than environmental policy such as the decline in railroad freight rates together with elastic demand by power plants were major contributors to the increased utilization of this fuel.

Gerking, S.; Hamilton, S.F. [University of Central Florida, Orlando, FL (United States)

2008-11-15T23:59:59.000Z

485

Azimuthally sensitive hanbury brown-twiss interferometry in Au + Au collisions sqrt S sub NN = 200 GeV  

SciTech Connect (OSTI)

We present the results of a systematic study of the shape of the pion distribution in coordinate space at freeze-out in Au+Au collisions at RHIC using two-pion Hanbury Brown-Twiss (HBT) interferometry. Oscillations of the extracted HBT radii vs. emission angle indicate sources elongated perpendicular to the reaction plane. The results indicate that the pressure and expansion time of the collision system are not sufficient to completely quench its initial shape.

Adams, J.; Adler, C.; Aggarwal, M.M.; Ahammed, Z.; Amonett, J.; Anderson, B.D.; Arkhipkin, D.; Averichev, G.S.; Badyal, S.K.; Balewski, J.; Barannikova, O.; Barnby, L.S.; Baudot, J.; Bekele, S.; Belaga, V.V.; Bellwied, R.; Berger, J.; Bezverkhny, B.I.; Bhardwaj, S.; Bhati, A.K.; Bichsel, H.; Billmeier, A.; Bland, L.C.; Blyth, C.O.; Bonner, B.E.; Botje, M.; Boucham, A.; Brandin, A.; Bravar, A.; Cadman, R.V.; Cai, X.Z.; Caines, H.; Calderon de la Barca Sanchez, M.; Carroll, J.; Castillo, J.; Cebra, D.; Chaloupka, P.; Chattopadhyay, S.; Chen, H.F.; Chen, Y.; Chernenko, S.P.; Cherney, M.; Chikanian, A.; Christie, W.; Coffin, J.P.; Cormier, T.M.; Cramer, J.G.; Crawford, H.J.; Das, D.; Das, S.; Derevschikov, A.A.; Didenko, L.; Dietel, T.; Dong, W.J.; Dong, X.; Draper, J.E.; Du, F.; Dubey, A.K.; Dunin, V.B.; Dunlop, J.C.; Dutta Majumdar, M.R.; Eckardt, V.; Efimov, L.G.; Emelianov, V.; Engelage, J.; Eppley, G.; Erazmus, B.; Estienne, M.; Fachini, P.; Faine, V.; Faivre, J.; Fatemi, R.; Filimonov, K.; Filip, P.; Finch, E.; Fisyak, Y.; Flierl, D.; Foley, K.J.; Fu, J.; Gagliardi, C.A.; Gagunashvili, N.; Gans, J.; Gaudichet, L.; Geurts, F.; Ghazikhanian, V.; Ghosh, P.; Gonzalez, J.E.; Grachov, O.; Grebenyuk, O.; Gronstal, S.; Grosnick, D.; Guertin, S.M.; Gupta, A.; Gutierrez, T.D.; Hallman, T.J.; Hamed, A.; Hardtke, D.; Harris, J.W.; Heinz, M.; Henry, T.W.; Heppelmann, S.; Hippolyte, B.; Hirsch, A.; Hjort, E.; Hoffmann, G.W.; Horsley, M.; Huang, H.Z.; Huang, L.S.; Hughes, E.; Humanic, T.J.; Igo, G.; Ishihara, A.; Jacobs, P.; Jacobs, W.W.; Janik, M.; Jiang, H.; Johnson, I.; Jones, P.G.; Judd, E.G.; Kabana, S.; Kaplan, M.; Keane, D.; Khodyrev, V.Yu.; Kiryluk, J.; Kisiel, A.; Klay, J.; Klein, S.R.; Klyachko, A.; Koetke, D.D.; Kollegger, T.; Kopytine, M.; Kotchenda, L.; Kovalenko, A.D.; Kramer, M.; Kravtsov, V.I.; Kravtsov, P.; Krueger, K.; Kuhn, C.; Kulikov, A.I.; Kumar, A.; Kunde, G.J.; Kunz, C.L.; Kutuev, R.Kh.; Kuznetsov, A.A.; Lamont, M.A.C.; et al.

2004-06-30T23:59:59.000Z

486

A simulation model of brown shrimp (Penaeus aztecus Ives) growth, movement, and survival in Galveston Bay, Texas  

E-Print Network [OSTI]

A SIMULATION MODEL OF BROWN SHRIMP (Penaeus aztecus Ives) GROWTH, MOVEMENT, AND SURVIVAL IN GALVESTON BAY, TEXAS A Thesis by LEROY CONRAD GEORGE Submitted to the Graduate College of Texas A&M University in partial fulfillment... of the requirement for the degree of MASTER OF SCIENCE December 1981 Major Subject: Wildlife and Fisheries Sciences A SINOIAFION NODHD OF BROHH SHRINP IP* I* I ) GROWTH, MOVEMENT, AND SURVIVAL IN GALVESTON BAY, TEXAS A Thesis by LEROY CONRAD GEORGE...

George, Leroy Conrad

2012-06-07T23:59:59.000Z

487

A stochastic simulation model of brown shrimp (Penaeus aztecus ives) growth, movement, and survival in Galveston Bay, Texas  

Science Journals Connector (OSTI)

A stochastic simulation model of brown shrimp (Penaeus aztecus Ives) population dynamics in Galveston Bay, Texas, is described, validated, and used to evaluate the effects of management alternatives and changing environmental conditions on shrimp dynamics. The model is composed of submodels representing: (1) recruitment, (2) growth, (3) natural mortality, (4) fishing mortality, and (5) emigration of brown shrimp. The model predicts significant changes in total annual harvest from the food shrimp, bait, and recreational fisheries resulting from (1) closure of the bay system to all fishing except during the spring and fall open seasons, (2) two-week postponement of the opening and closing of the open seasons for the food shrimp fishery, (3) a 2.5C increase and (4) a 2.5C decrease in mean water temperature, (5) an 80% increase and (6) an 80% decrease in fishing effort. No significant change in the total annual harvest is predicted when the food shrimp fishing season is extended from May 15 through December 15. Sensitivity analysis suggests that field experimentation designed specifically to test the hypothesis of a 60-day time lag between brown shrimp recruitment into the bays and exposure to the fishery should receive high priority. Simulation results are discussed within a management framework.

Lee C. George; W.E. Grant

1983-01-01T23:59:59.000Z

488

An individual-based instream flow model for coexisting populations of brown and rainbow trout  

SciTech Connect (OSTI)

This report describes an individual-based model for sympatric populations of brown and rainbow trout in a stream habitat. Hatchery rainbow trout are included as a third species. The model provides a tool for predicting flow effects on trout populations by linking the hydraulic component of the Physical Habitat Simulation (PHABSIM) methodology and an individual-based population modeling approach. PHABSIM simulates the spatial distribution of depth and velocity at different flows. The individual-based model simulates the reproduction, foraging, consumption, energetic costs, growth, habitat utilization, movement, and mortality of individual fish, and enables population attributes to be determined from relevant attributes of individual fish. The spatially explicit nature of the model permits evaluation of behavioral responses used by fish to mitigate temporary setbacks in habitat quality. This linked mechanistic modeling approach readily lends itself to the iterative process of making predictions, testing against field data, improving the model, and making more predictions. The model has been applied to a stream segment in the Tule River, California. Physical and biological data from this site are used as input to the model. Calibrating the model to abundance data was relatively easy because values for mortality parameters were not strongly constrained by empirical data. Calibrating the model to observed growth rates and habitat use was more challenging. The primary reason for developing this model has been to provide a new and complementary tool to PHABSIM that can be used in instream-flow assessments.

Van Winkle, W.; Jager, H.I.; Holcomb, B.D.

1996-03-01T23:59:59.000Z

489

NEW BROWN DWARF COMPANIONS TO YOUNG STARS IN SCORPIUS-CENTAURUS  

SciTech Connect (OSTI)

We present the discoveries of three faint companions to young stars in the Scorpius-Centaurus region, imaged with the NICI instrument on Gemini South. We have confirmed all three companions through common proper motion tests. Follow-up spectroscopy has confirmed two of them, HIP 65423 B and HIP 65517 B, to be brown dwarfs, while the third, HIP 72099 B, is more likely a very low mass star just above the hydrogen burning limit. The detection of wide companions in the mass range of {approx}40-100 M{sub jup} complements previous work in the same region, reporting detections of similarly wide companions with lower masses, in the range of {approx}10-30 M{sub jup}. Such low masses near the deuterium burning limit have raised the question of whether those objects formed like planets or stars. The existence of intermediate objects as reported here could represent a bridge between lower-mass companions and stellar companions, but in any case demonstrate that mass alone may not provide a clear-cut distinction for the formation of low-mass companions to stars.

Janson, Markus [Department of Astrophysical Sciences, Princeton University, Princeton, NJ (United States); Jayawardhana, Ray; Bonavita, Mariangela [Department of Astronomy and Astrophysics, University of Toronto, Toronto, ON (Canada); Girard, Julien H. [European Southern Observatory, Santiago (Chile); Lafreniere, David [Department of Physics, University of Montreal, Montreal, QC (Canada); Gizis, John [Department of Physics and Astronomy, University of Delaware, Newark, DE (United States); Brandeker, Alexis, E-mail: janson@astro.princeton.edu [Department of Astronomy, Stockholm University, Stockholm (Sweden)

2012-10-10T23:59:59.000Z

490

Observation of keyhole-mode laser melting in laser powder-bed fusion additive manufacturing  

Science Journals Connector (OSTI)

Abstract Laser powder-bed fusion additive manufacturing of metals employs high-power focused laser beams. Typically, the depth of the molten pool is controlled by conduction of heat in the underlying solid material. But, under certain conditions, the mechanism of melting can change from conduction to so-called keyhole-mode laser melting. In this mode, the depth of the molten pool is controlled by evaporation of the metal. Keyhole-mode laser melting results in melt pool depths that can be much deeper than observed in conduction mode. In addition, the collapse of the vapor cavity that is formed by the evaporation of the metal can result in a trail of voids in the wake of the laser beam. In this paper, the experimental observation of keyhole-mode laser melting in a laser powder-bed fusion additive manufacturing setting for 316L stainless steel is presented. The conditions required to transition from conduction controlled melting to keyhole-mode melting are identified.

Wayne E. King; Holly D. Barth; Victor M. Castillo; Gilbert F. Gallegos; John W. Gibbs; Douglas E. Hahn; Chandrika Kamath; Alexander M. Rubenchik

2014-01-01T23:59:59.000Z

491

Production of Diesel Engine Turbocharger Turbine from Low Cost Titanium Powder  

SciTech Connect (OSTI)

Turbochargers in commercial turbo-diesel engines are multi-material systems where usually the compressor rotor is made of aluminum or titanium based material and the turbine rotor is made of either a nickel based superalloy or titanium, designed to operate under the harsh exhaust gas conditions. The use of cast titanium in the turbine section has been used by Cummins Turbo Technologies since 1997. Having the benefit of a lower mass than the superalloy based turbines; higher turbine speeds in a more compact design can be achieved with titanium. In an effort to improve the cost model, and develop an industrial supply of titanium componentry that is more stable than the traditional aerospace based supply chain, the Contractor has developed component manufacturing schemes that use economical Armstrong titanium and titanium alloy powders and MgR-HDH powders. Those manufacturing schemes can be applied to compressor and turbine rotor components for diesel engine applications with the potential of providing a reliable supply of titanium componentry with a cost and performance advantage over cast titanium.

Muth, T. R.; Mayer, R. (Queen City Forging)

2012-05-04T23:59:59.000Z

492

Development of a novel 2-stage entrained flow coal dry powder gasifier  

Science Journals Connector (OSTI)

Abstract Coal-fired gasifiers are the key technology for clean power generation and coal chemical process. This paper presents a 2-stage entrained flow dry powder gasifier in which coal is entrained into the lower chamber burner with oxygen and steam to raise the temperature of the crude gas up to 1700C. The lower chamber is linked to the upper gasification chamber through a middle throat, where additional coal and steam is fed to cool down the slag to less than 900C for deslagging from the lower chamber bottom. Various coals have been characterized and gasified with this 2-stage entrained flow dry powder gasifier and comparisons made with single stage gasifiers. The results show that the 2-stage gasifier is suitable for a broad range of coal varieties and gives carbon conversion up to 98.9% with cold syngas efficiency of 83.2% at a pressure of 3.0MPa, while the oxygen and coal consumption are lower than with the single stage gasifier.

Shisen Xu; Yongqiang Ren; Baomin Wang; Yue Xu; Liang Chen; Xiaolong Wang; Tiancun Xiao

2014-01-01T23:59:59.000Z

493

Effect of mechanical processing and heat treatment of powders on their sinterability characteristics linked with their method of manufacture. IV. The v/v vs tau function in a temperature jump in the sintering of porous bodies from molybdenum and tungsten carbide powders  

SciTech Connect (OSTI)

Use was made of molybdenum and tungsten carbide powders, which exhibit fairly high densification rates. The main object of the sintering of specimens from a molybdenum powder was to find out to what extent the behavior in a temperature jump of a metal differing markedly in physical properties (and electronic shell structure) from the metals investigated earlier resembled or differed from that of those metals. A molybdenum powder produced by the reduction of molybdenum trioxide with hydrogen at 800 C was chosen for investigation and experiments with tungsten carbide were carried out on two batches of powders produced at low and high carbidization temperatures. The study showed that the behavior of a porous specimen from the molybdenum powder did not differ from that of other metal powders. The behavior of tungsten carbide specimens in a temperature jump was similar to that of the metal powders studied in a previous investigation.

Ivensen, V.A.

1986-04-01T23:59:59.000Z

494

Crystal structures and thermal expansion of -MgSO4 and -MgSO4 from 4.2 to 300 K by neutron powder diffraction  

Science Journals Connector (OSTI)

Powder neutron refinements of two MgSO4 polymorphs are presented, and their highly anisotropic thermal expansivity is analysed using a Debye model.

Fortes, A.D.

2007-07-13T23:59:59.000Z

495

New Technique for the Direct Analysis of Food Powders Confined in a Small Hole Using Transversely Excited Atmospheric CO2 Laser-Induced Gas Plasma  

Science Journals Connector (OSTI)

Taking advantage of the differences between the interactions of transversely excited atmospheric (TEA) CO2 lasers with metal and with organic powder, a new technique for...

Khumaeni, Ali; Ramli, Muliadi; Deguchi, Yoji; Lee, Yong Inn; Idris, Nasrullah; Kurniawan, Koo Hendrik; Lie, Tjung Jie; Kagawa, Kiichiro

2008-01-01T23:59:59.000Z

496

EOD modulations of brown ghost electric fish: JARs, chirps, rises, and dips  

Science Journals Connector (OSTI)

Weakly electric wave fish make highly regular electric organ discharges (EODs) for precise electrolocation. Yet, they modulate the ongoing rhythmicity of their EOD during social interactions. These modulations may last from a few milliseconds to tens of minutes. In this paper we describe the different types of EOD modulations, what they may signal to recipient fish, and how they are generated on a neural level. Our main conclusions, based on a species called the brown ghost (Apteronotus leptorhynchus) are that fish: (1) show sexual dimorphism in the signals that they generate; (2) make different signals depending on whether they are interacting with a fish of the opposite sex or, within their own sex, to a fish of that which is dominant or subordinate to it; (3) are able to assess relative dominance from electrical cues; (4) have a type of plasticity in the pacemaker nucleus, the control center for the EOD, that occurs after stimulation of NMDA receptors that causes a long-lasting (tens of minutes to hours) change in EOD frequency; (5) that this NMDA receptor-dependent change may occur in reflexive responses, like the jamming avoidance response (JAR), as well as after certain long-lasting social signals. We propose that NMDA-receptor dependent increases in EOD frequency during the JAR adaptively shift the EOD frequency to a new value to avoid jamming by another fish and that such increases in EOD frequency during social encounters may be advantageous since social dominance seems to be positively correlated with EOD frequency in both sexes.

Harold Zakon; Joerg Oestreich; Sara Tallarovic; Frank Triefenbach

2002-01-01T23:59:59.000Z

497

Ozone induces glucose intolerance and systemic metabolic effects in young and aged brown Norway rats  

SciTech Connect (OSTI)

Air pollutants have been associated with increased diabetes in humans. We hypothesized that ozone would impair glucose homeostasis by altering insulin signaling and/or endoplasmic reticular (ER) stress in young and aged rats. One, 4, 12, and 24 month old Brown Norway (BN) rats were exposed to air or ozone, 0.25 or 1.0 ppm, 6 h/day for 2 days (acute) or 2 d/week for 13 weeks (subchronic). Additionally, 4 month old rats were exposed to air or 1.0 ppm ozone, 6 h/day for 1 or 2 days (time-course). Glucose tolerance tests (GTT) were performed immediately after exposure. Serum and tissue biomarkers were analyzed 18 h after final ozone for acute and subchronic studies, and immediately after each day of exposure in the time-course study. Age-related glucose intolerance and increases in metabolic biomarkers were apparent at baseline. Acute ozone caused hyperglycemia and glucose intolerance in rats of all ages. Ozone-induced glucose intolerance was reduced in rats exposed for 13 weeks. Acute, but not subchronic ozone increased ?{sub 2}-macroglobulin, adiponectin and osteopontin. Time-course analysis indicated glucose intolerance at days 1 and 2 (2 > 1), and a recovery 18 h post ozone. Leptin increased day 1 and epinephrine at all times after ozone. Ozone tended to decrease phosphorylated insulin receptor substrate-1 in liver and adipose tissues. ER stress appeared to be the consequence of ozone induced acute metabolic impairment since transcriptional markers of ER stress increased only after 2 days of ozone. In conclusion, acute ozone exposure induces marked systemic metabolic impairments in BN rats of all ages, likely through sympathetic stimulation. - Highlights: Air pollutants have been associated with increased diabetes in humans. Acute ozone exposure produces profound metabolic alterations in rats. Age influences metabolic risk factors in aging BN rats. Acute metabolic effects are reversible and repeated exposure reduces these effects. Ozone metabolic effects are only slightly exacerbated in geriatric rats.

Bass, V. [Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Gordon, C.J.; Jarema, K.A.; MacPhail, R.C. [Toxicity Assessment Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Cascio, W.E. [Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Phillips, P.M. [Toxicity Assessment Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Ledbetter, A.D.; Schladweiler, M.C. [Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Andrews, D. [Research Cores Unit, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Miller, D. [Curriculum in Toxicology, University of North Carolina, Chapel Hill, NC (United States); Doerfler, D.L. [Research Cores Unit, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States); Kodavanti, U.P., E-mail: kodavanti.urmila@epa.gov [Environmental Public Health Division, National Health and Environmental Effects Research Laboratory, U.S. Environmental Protection Agency, Research Triangle Park, NC (United States)

2013-12-15T23:59:59.000Z

498

UNITED STATES ATOMIC ENERGY COMMISSION OAK RIDGE TENNESSEE THE DIFFRACTION OF NEUTRONS BY CRYSTALLINE POWDERS  

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

MDDC 869 MDDC 869 UNITED STATES ATOMIC ENERGY COMMISSION OAK RIDGE TENNESSEE THE DIFFRACTION OF NEUTRONS BY CRYSTALLINE POWDERS by E. 0. Wollan C. G. Shull Clinton Laboratories Published for use within the Atomic Energy Commission. Inquiries for additional -copies and any questions regarding reproduction by recipients of this document may be referred to the Documents Distribution Subsection, Publication Section, Technical Information Branch, Atomic Energy Commission, P. 0. Box E, Oak Ridge, Tennessee. Inasmuch as a declassified document may differ materially from the original classified document by reason of deletions necessary to accomplish declassification, this copy does not constitute authority for declassification of classified copies of a similar document which may bear the same title and authors.

499

Powder diffraction studies on proteins : An overview of data collection approaches.  

SciTech Connect (OSTI)

Following the seminal work of Von Dreele, high quality powder X-ray diffraction studies on proteins are being established as a valuable complementary technique to single-crystal measurements. Several studies using a variety of experiments approaches have been reported in the literature, including high-resolution studies employing parallel beam geometry and high intensity measurements using position sensitive detectors. The choice of the optimum instrumental configuration depends on a number of competing factors such as the amount of sample available, its radiation sensitivity, and the quality of the data required for data analysis, e.g. angular resolution, the extent of the data in d-spacing, or the number of patterns required to explore the protein's behaviour at different temperatures, or under different crystallisation conditions, etc. Here we discuss several advantages and disadvantages of different data collection methods followed for selected examples of small proteins.

Margiolaki, I.; Wright, J. P.; Fitch, A. N.; Fox, G. C.; Labrador, A.; Von Dreele, R. B.; Miura, K.; Gozzo, F.; Schiltz, M.; Besnard, C.; Camus, F.; Pattison, P.; Beckers, D.; Degen, T.; X-Ray Science Division; European Synchrotron Radiation Facility; Japan Synchrotron Radiation Research Inst.; Swiss Light Source; Ecole Polytechnique Federale de Lausanne; PANalytical

2007-01-01T23:59:59.000Z

500

The effect of cohesive forces on the fluidization of aeratable powders  

SciTech Connect (OSTI)

The effects of cohesive forces of van der Waals type in the fluidization/defluidization of aeratable type A powders in the Geldart classification are numerically investigated. The effects of friction and particle-size distribution (PSD) on some design-significant parameters, such as minimum fluidization and bubbling velocities, are also investigated. For these types of particles, cohesive forces are observed as necessary to fully exhibit the role friction plays in commonly observed phenomena, such as pressure overshoot and hysteresis around minimum fluidization. This study also shows that a full-experimental PSD consisting of a dozen particle sizes may be sufficiently represented by a few particle diameters. Reducing the number of particle types may benefit the continuum approach, which is based on the kinetic theory of granular flow, by reducing computational expense, while still maintaining the accuracy of the predictions.

Galvin, Janine F.; Benyahia, Sofiane

2014-01-01T23:59:59.000Z