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Note: This page contains sample records for the topic "larson garnet alkali" 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
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1

B. C. (Ben) Larson | ornl.gov  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to someone byDearTechnicalAwardssupports local ... B&W Y-122Ben Larson

2

LARSON--MATH 556--CLASSROOM WORKSHEET 07 Hamilton Cycles  

E-Print Network [OSTI]

Last name First name LARSON--MATH 556--CLASSROOM WORKSHEET 07 Hamilton Cycles An alternating-cycle. A cycle which includes every point of a graph G is called a Hamilton cycle of G. 1. Draw the complete graph K5. Find one Hamilton cycle in K5. 2. Does every complete graph have a Hamilton cycle? Explain. 3

Larson, Craig E.

3

Phase stable rare earth garnets  

DOE Patents [OSTI]

A transparent ceramic according to one embodiment includes a rare earth garnet comprising A.sub.hB.sub.iC.sub.jO.sub.12, where h is 3.+-.10%, i is 2.+-.10%, and j is 3.+-.10%. A includes a rare earth element or a mixture of rare earth elements, B includes at least one of aluminum, gallium and scandium, and C includes at least one of aluminum, gallium and scandium, where A is at a dodecahedral site of the garnet, B is at an octahedral site of the garnet, and C is at a tetrahedral site of the garnet. In one embodiment, the rare earth garment has scintillation properties. A radiation detector in one embodiment includes a transparent ceramic as described above and a photo detector optically coupled to the rare earth garnet.

Kuntz, Joshua D.; Cherepy, Nerine J.; Roberts, Jeffery J.; Payne, Stephen A.

2013-06-11T23:59:59.000Z

4

Methods of recovering alkali metals  

DOE Patents [OSTI]

Approaches for alkali metal extraction, sequestration and recovery are described. For example, a method of recovering alkali metals includes providing a CST or CST-like (e.g., small pore zeolite) material. The alkali metal species is scavenged from the liquid mixture by the CST or CST-like material. The alkali metal species is extracted from the CST or CST-like material.

Krumhansl, James L; Rigali, Mark J

2014-03-04T23:59:59.000Z

5

Hydrothermal alkali metal recovery process  

DOE Patents [OSTI]

In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced, alkali metal constituents are recovered from the particles by treating them with a calcium or magnesium-containing compound in the presence of water at a temperature between about 250.degree. F. and about 700.degree. F. and in the presence of an added base to establish a pH during the treatment step that is higher than would otherwise be possible without the addition of the base. During the treating process the relatively high pH facilitates the conversion of water-insoluble alkali metal compounds in the alkali metal residues into water-soluble alkali metal constituents. The resultant aqueous solution containing water-soluble alkali metal constituents is then separated from the residue solids, which consist of the treated particles and any insoluble materials formed during the treatment step, and recycled to the gasification process where the alkali metal constituents serve as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst. Preferably, the base that is added during the treatment step is an alkali metal hydroxide obtained by water washing the residue solids produced during the treatment step.

Wolfs, Denise Y. (Houston, TX); Clavenna, Le Roy R. (Baytown, TX); Eakman, James M. (Houston, TX); Kalina, Theodore (Morris Plains, NJ)

1980-01-01T23:59:59.000Z

6

The 2006 aseismic slow slip event in Guerrero, Mexico: New results Kristine M. Larson,1  

E-Print Network [OSTI]

The 2006 aseismic slow slip event in Guerrero, Mexico: New results from GPS Kristine M. Larson,1. Miyazaki, and J. A. S. Santiago (2007), The 2006 aseismic slow slip event in Guerrero, Mexico: New results from Guerrero, Mexico were made with continuous GPS instrumentation. This network spans 75 km along

Larson, Kristine

7

Glaciohydraulic supercooling in former ice sheets? Grahame J. Larson a,*, Daniel E. Lawson b  

E-Print Network [OSTI]

a Department of Geological Sciences, Michigan State University, East Lansing MI 48824, USA b Geophysical Vegas, NV 89154-4010, USA g Department of Geology, Central Michigan University, Mount Pleasant, MI 48859Glaciohydraulic supercooling in former ice sheets? Grahame J. Larson a,*, Daniel E. Lawson b

Lachniet, Matthew S.

8

Purification of alkali metal nitrates  

DOE Patents [OSTI]

A process is disclosed for removing heavy metal contaminants from impure alkali metal nitrates containing them. The process comprises mixing the impure nitrates with sufficient water to form a concentrated aqueous solution of the impure nitrates, adjusting the pH of the resulting solution to within the range of between about 2 and about 7, adding sufficient reducing agent to react with heavy metal contaminants within said solution, adjusting the pH of the solution containing reducing agent to effect precipitation of heavy metal impurities and separating the solid impurities from the resulting purified aqueous solution of alkali metal nitrates. The resulting purified solution of alkali metal nitrates may be heated to evaporate water therefrom to produce purified molten alkali metal nitrate suitable for use as a heat transfer medium. If desired, the purified molten form may be granulated and cooled to form discrete solid particles of alkali metal nitrates.

Fiorucci, Louis C. (Hamden, CT); Gregory, Kevin M. (Woodridge, IL)

1985-05-14T23:59:59.000Z

9

E-Print Network 3.0 - aluminum garnet powders Sample Search Results  

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

model of garnet... of magnesium and a range of trivalent trace elements (rare earth elements, Y, In and Sc) between garnet... ) melting reaction between garnet and melt....

10

E-Print Network 3.0 - aluminum silicate garnet Sample Search...  

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

garnet 2. Silicate garnets close to the natural mineral andradite... Accommodation of Uranium into the Garnet ... Source: Utsunomiya, Satoshi - Department of Geological...

11

Upgrading platform using alkali metals  

DOE Patents [OSTI]

A process for removing sulfur, nitrogen or metals from an oil feedstock (such as heavy oil, bitumen, shale oil, etc.) The method involves reacting the oil feedstock with an alkali metal and a radical capping substance. The alkali metal reacts with the metal, sulfur or nitrogen content to form one or more inorganic products and the radical capping substance reacts with the carbon and hydrogen content to form a hydrocarbon phase. The inorganic products may then be separated out from the hydrocarbon phase.

Gordon, John Howard

2014-09-09T23:59:59.000Z

12

Combinatorial pulsed laser deposition of doped yttrium iron garnet films on yttrium aluminium garnet  

SciTech Connect (OSTI)

We investigate the crystalline growth of yttrium iron garnet (YIG) films doped with bismuth (Bi) and cerium (Ce) by combinatorial pulsed laser deposition, co-ablating a YIG target and either a Bi{sub 2}O{sub 3} or a CeO{sub 2} target, for applications in microwave and optical communications. Substrate temperature is critical for crystalline growth of YIG with simultaneous inclusion of Bi in the garnet lattice, whereas Ce is not incorporated in the garnet structure, but forms a separate CeO{sub 2} phase.

Sposito, A., E-mail: as11g10@orc.soton.ac.uk; Eason, R. W. [Optoelectronics Research Centre, University of Southampton, Southampton SO17 1BJ (United Kingdom); Gregory, S. A.; Groot, P. A. J. de [Physics and Astronomy, University of Southampton, Southampton SO17 1BJ (United Kingdom)

2014-02-07T23:59:59.000Z

13

Electrolytic method to make alkali alcoholates using ion conducting alkali electrolyte/separator  

DOE Patents [OSTI]

Alkali alcoholates, also called alkali alkoxides, are produced from alkali metal salt solutions and alcohol using a three-compartment electrolytic cell. The electrolytic cell includes an anolyte compartment configured with an anode, a buffer compartment, and a catholyte compartment configured with a cathode. An alkali ion conducting solid electrolyte configured to selectively transport alkali ions is positioned between the anolyte compartment and the buffer compartment. An alkali ion permeable separator is positioned between the buffer compartment and the catholyte compartment. The catholyte solution may include an alkali alcoholate and alcohol. The anolyte solution may include at least one alkali salt. The buffer compartment solution may include a soluble alkali salt and an alkali alcoholate in alcohol.

Joshi, Ashok V. (Salt Lake City, UT); Balagopal, Shekar (Sandy, UT); Pendelton, Justin (Salt Lake City, UT)

2011-12-13T23:59:59.000Z

14

U. S. FUSION ENERGY FUTURE John A. Schmidt, Dan Jassby, Scott Larson, Maria Pueyo, and Paul H. Rutherford  

E-Print Network [OSTI]

with fusion development plans in Japan and Europe [e.g. 2]. The primary source of energy demand projections that was used as a basis for this assessment was the World Energy Council/IIASA Global Energy Perspectives [3U. S. FUSION ENERGY FUTURE John A. Schmidt, Dan Jassby, Scott Larson, Maria Pueyo, and Paul H

15

Doug Larson  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to UserProduct:Directives Templates8. U.S.Donald R. BaerBaxterDougDoug

16

E-Print Network 3.0 - aluminum garnet phosphor Sample Search...  

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

the rare earth - aluminum - gal- lium garnets was restricted to low... Accommodation of Uranium into the Garnet Structure Sergey V.Yudintsev1 , Marya I. Lapina1... is garnet-type...

17

E-Print Network 3.0 - aluminum garnet activated Sample Search...  

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

the rare earth - aluminum - gal- lium garnets was restricted to low... Accommodation of Uranium into the Garnet Structure Sergey V.Yudintsev1 , Marya I. Lapina1... is garnet-type...

18

Regenerable activated bauxite adsorbent alkali monitor probe  

DOE Patents [OSTI]

A regenerable activated bauxite adsorber alkali monitor probe for field applications to provide reliable measurement of alkali-vapor concentration in combustion gas with special emphasis on pressurized fluidized-bed combustion (PFBC) off-gas. More particularly, the invention relates to the development of a easily regenerable bauxite adsorbent for use in a method to accurately determine the alkali-vapor content of PFBC exhaust gases. 6 figs.

Lee, S.H.D.

1992-12-22T23:59:59.000Z

19

Diamond films treated with alkali-halides  

DOE Patents [OSTI]

A secondary electron emitter is provided and includes a substrate with a diamond film, the diamond film is treated or coated with an alkali-halide. 5 figs.

Anderson, D.F.; Kwan, S.W.

1997-04-08T23:59:59.000Z

20

Structural relaxation around substitutional Cr3+ in pyrope garnet  

E-Print Network [OSTI]

the spinel- garnet transformation -a major phase boundary in the Earth's upper mantle- to pressures as high shells of neighbors (Mg and Si) relax only partially. Site relaxation is accommodated by strain diamonds (Irifune et al. 1982). In the garnet structure (Novak and Gibbs 1971), Cr3+ is small enough

Note: This page contains sample records for the topic "larson garnet alkali" 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

alkali-metal difluorodioxoperoxouranatevi monohydrates: Topics...  

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

NMR to explosives detec- tion and fundamental Romalis, Mike 2 Spin-Exchange Optical Pumping with Alkali-Metal Vapors Physics Websites Summary: Spin-Exchange Optical Pumping with...

22

Fate of alkalis in coal combustion  

SciTech Connect (OSTI)

The results of these measurements and experiments provide a plausible way to begin an explanation for the distribution of alkali in the ash particulates. To summarize: (1) under typical coal combustion conditions in an atmosphere rich in CO/sub 2/ and/or SO/sub 2/, the alkalis in the organic fraction do not vaporize but remain bound in the ash as stable carbonates or sulfates; (2) the alkalis in the inorganic fraction diffuse to the surface producing enrichment by a factor of about 13 to a depth of about 100A. The results, however, do not provide conclusive evidence about the fate of the alkalis. The effect of water vapor in the combustion stream has not yet been studied. Clearly, water could have an important effect on the vaporization process. Furthermore, the reasoning we have followed to explain the absence of alkali enrichment in the submicron particles requires that the volatilization of the alkalis in both the organic and inorganic fraction not be significant (say less than 20%).

Stewart, G.W. (Aerodyne Research, Inc., Bedford, MA); Stinespring, C.D.; Davidovits, P.

1982-01-01T23:59:59.000Z

23

Camenen, B., and Larson, M. 2007. A Total Load Formula for the Nearshore. Proceedings Coastal Sediments '07 Conference, ASCE Press, Reston, VA, 56-67.  

E-Print Network [OSTI]

Sediments '07 Conference, ASCE Press, Reston, VA, 56-67. A TOTAL LOAD FORMULA FOR THE NEARSHORE Benoit.larson@tvr.lth.se Abstract: A total load sediment transport formula based on recent studies on the bed load and suspended qualify and quantify the current-related and wave-related sediment transport. It appeared

US Army Corps of Engineers

24

Selection of non-adsorbing alkali components  

SciTech Connect (OSTI)

This project consists of three phases of laboratory experimental study. In phase I (screening), eight candidate materials, 304SS (serves as a base material for comparison), Hastelloy C-276, Hastelloy X, Haynes No. 188, Allonized 304SS, Pt-coated 304SS, and ceramic-coated 304SS, will be subjected to atmospheric TGA study under the simulated PFBC (oxidizing) environment with and without alkali vapor doping. Each candidate material will be evaluated for its resistance toward alkali-vapor capture. In addition, a post-test metallographic characterization of the sample will be performed to obtain a better understanding of the alkali capture mechanism and material behavior. The material(s) with little or no alkali-vapor adsorption will be selected as the promising material(s) for the Phase II study. In Phase II, the promising material(s) will be further tested in the TGA under elevated pressure to simulate the PFBC environment (in terms of temperature, pressure, and gas composition). The effect of pressure on the extent of alkali-vapor adsorption will be evaluated, and the test samples will be metallographically characterized. The most promising candidate material(s) will be identified and recommended for further tesfing in the actual PFBC environment. In Phase III, four materials will be selected from the eight candidate materials screened in the PFBC environment and will be evaluated for their alkali-vapor capture by atmospheric TGA under the coal gasification fuel gas (reducing) environment. The tested samples will also be metallographically characterized. The most promising material(s) will be identified and recommended for further testing in the actual coal gasification environment.

Lee, S.H.D.; Natesan, K.; Swift, W.M.

1992-01-01T23:59:59.000Z

25

Selection of non-adsorbing alkali components  

SciTech Connect (OSTI)

This project consists of three phases of laboratory experimental study. In phase I (screening), eight candidate materials, 304SS (serves as a base material for comparison), Hastelloy C-276, Hastelloy X, Haynes No. 188, Allonized 304SS, Pt-coated 304SS, and ceramic-coated 304SS, will be subjected to atmospheric TGA study under the simulated PFBC (oxidizing) environment with and without alkali vapor doping. Each candidate material will be evaluated for its resistance toward alkali-vapor capture. In addition, a post-test metallographic characterization of the sample will be performed to obtain a better understanding of the alkali capture mechanism and material behavior. The material(s) with little or no alkali-vapor adsorption will be selected as the promising material(s) for the Phase II study. In Phase II, the promising material(s) will be further tested in the TGA under elevated pressure to simulate the PFBC environment (in terms of temperature, pressure, and gas composition). The effect of pressure on the extent of alkali-vapor adsorption will be evaluated, and the test samples will be metallographically characterized. The most promising candidate material(s) will be identified and recommended for further tesfing in the actual PFBC environment. In Phase III, four materials will be selected from the eight candidate materials screened in the PFBC environment and will be evaluated for their alkali-vapor capture by atmospheric TGA under the coal gasification fuel gas (reducing) environment. The tested samples will also be metallographically characterized. The most promising material(s) will be identified and recommended for further testing in the actual coal gasification environment.

Lee, S.H.D.; Natesan, K.; Swift, W.M.

1992-11-01T23:59:59.000Z

26

Alkali-aggregate reaction in concrete containing high-alkali cement and granite aggregate  

SciTech Connect (OSTI)

The paper discusses results of the research into the influence of high-alkali Portland cement on granite aggregate. The deformation of the concrete structure occurred after 18 months. The research was carried out by means of a scanning electron microscope equipped with a high-energy dispersive X-ray analyzer that allowed observation of unpolished sections of concrete bars exhibiting the cracking pattern typical of the alkali-silica reaction. Both the microscopic observation and the X-ray elemental analysis confirm the presence of alkali-silica gel and secondary ettringite in the cracks.

Owsiak, Z

2004-01-01T23:59:59.000Z

27

Alkali resistant optical coatings for alkali lasers and methods of production thereof  

DOE Patents [OSTI]

In one embodiment, a multilayer dielectric coating for use in an alkali laser includes two or more alternating layers of high and low refractive index materials, wherein an innermost layer includes a thicker, >500 nm, and dense, >97% of theoretical, layer of at least one of: alumina, zirconia, and hafnia for protecting subsequent layers of the two or more alternating layers of high and low index dielectric materials from alkali attack. In another embodiment, a method for forming an alkali resistant coating includes forming a first oxide material above a substrate and forming a second oxide material above the first oxide material to form a multilayer dielectric coating, wherein the second oxide material is on a side of the multilayer dielectric coating for contacting an alkali.

Soules, Thomas F; Beach, Raymond J; Mitchell, Scott C

2014-11-18T23:59:59.000Z

28

Molten alkali-alcohol and molten alkali treatment of lignite; A comparative study  

SciTech Connect (OSTI)

The solubility of the Tun cedilla c bilek lignite is increased up to 100% on daf basis, after molten alkali-benzhydrol treatment. Meanwhile its oxygen, sulphur and ash-content are decreased considerably. Similar results are also obtained by simple molten alkali treatment of lignite, although the oxygen content was increased in the product. A reductive cleavage mechanism for the former but an oxydative cleavage mechanism for the latter process are suggested.

Balcioglu, N. (Dept. of Chemistry, Hacettepe Univ., Ankara (TR)); Yilmaz, M. (Dept. of Chemistry, Selcuk Univ., Konya (TR))

1990-01-01T23:59:59.000Z

29

Alkali metal recovery from carbonaceous material conversion process  

DOE Patents [OSTI]

In a coal gasification operation or similar conversion process carried out in the presence of an alkali metal-containing catalyst wherein solid particles containing alkali metal residues are produced in the gasifier or similar reaction zone, alkali metal constitutents are recovered from the particles by withdrawing and passing the particles from the reaction zone to an alkali metal recovery zone in the substantial absence of molecular oxygen and treating the particles in the recovery zone with water or an aqueous solution in the substantial absence of molecular oxygen. The solution formed by treating the particles in the recovery zone will contain water-soluble alkali metal constituents and is recycled to the conversion process where the alkali metal constituents serve as at least a portion of the alkali metal constituents which comprise the alkali metal-containing catalyst. Preventing contact of the particles with oxygen as they are withdrawn from the reaction zone and during treatment in the recovery zone avoids the formation of undesirable alkali metal constituents in the aqueous solution produced in the recovery zone and insures maximum recovery of water-soluble alkali metal constituents from the alkali metal residues.

Sharp, David W. (Seabrook, TX); Clavenna, LeRoy R. (Baytown, TX); Gorbaty, Martin L. (Fanwood, NJ); Tsou, Joe M. (Galveston, TX)

1980-01-01T23:59:59.000Z

30

Experimental Evaluation of GarnetClinopyroxene Thermometer Daisuke NAKAMURA  

E-Print Network [OSTI]

Experimental Evaluation of Garnet­Clinopyroxene Thermometer Daisuke NAKAMURA 1 , Takao HIRAJIMA 1(Grt)­clinopyroxene(Cpx) thermometer have been proposed and widely applied to natural rocks for estimating metamorphic temperature (T), but a serious controversy exists on this thermometer. Pattison & Newton (1989) (PN89) performed reversal

Nakamura, Daisuke

31

Alkali Metal Heat Pipe Life Issues  

SciTech Connect (OSTI)

One approach to fission power system design uses alkali metal heat pipes for the core primary heat-transfer system. Heat pipes may also be used as radiator elements or auxiliary thermal control elements. This synopsis characterizes long-life core heat pipes. References are included where information that is more detailed can be found. Specifics shown here are for demonstration purposes and do not necessarily reflect current Nasa Project Prometheus point designs. (author)

Reid, Robert S. [Marshall Space Flight Center, National Aeronautics and Space Administration, Huntsville, Alabama, 35812 (United States)

2004-07-01T23:59:59.000Z

32

Sublattice Magnetic Relaxation in Rare Earth Iron Garnets  

SciTech Connect (OSTI)

The magnetic properties of rare earth garnets make them attractive materials for applications ranging from optical communications to magnetic refrigeration. The purpose of this research was to determine the AC magnetic properties of several rare earth garnets, in order to ascertain the contributions of various sublattices. Gd3Fe5O12, Gd3Ga5O12, Tb3Fe5O12, Tb3Ga5O12, and Y3Fe5O12 were synthesized by a solid state reaction of their oxides and verified by x-ray diffraction. Frequency-dependent AC susceptibility and DC magnetization were measured versus temperature (10 340 K). Field cooling had little effect on AC susceptibility, but large effect on DC magnetization, increasing magnetization at the lowest temperature and shifting the compensation point to lower temperatures. Data suggest that interaction of the two iron lattices results in the two frequency dependent magnetic relaxations in the iron garnets, which were fit using the Vogel-Fulcher and Arrhenius laws.

McCloy, John S.; Walsh, Brian

2013-07-08T23:59:59.000Z

33

Super stable garnet ceramics may be ideal for high-energy lithium...  

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

Relations (865) 574-7308 Super stable garnet ceramics may be ideal for high-energy lithium batteries ORNL researchers used scanning transmission electron microscopy to take an...

34

E-Print Network 3.0 - aluminum garnet laser Sample Search Results  

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

eclogite of the Western Gneiss Summary: Combined thermodynamic and rare earth element modelling of garnet growth during subduction... Keywords ultrahigh-pressure...

35

E-Print Network 3.0 - aluminium garnet laser Sample Search Results  

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

eclogite of the Western Gneiss Summary: Combined thermodynamic and rare earth element modelling of garnet growth during subduction... Keywords ultrahigh-pressure...

36

E-Print Network 3.0 - aluminum garnet yag Sample Search Results  

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

Collection: Materials Science 49 A nearly ideal phosphor-converted white light-emitting diode Steven C. Allen and Andrew J. Steckla Summary: aluminum garnet YAG :Ce powder...

37

E-Print Network 3.0 - aluminum garnet crystals Sample Search...  

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

Geological Sciences, University of Michigan Collection: Geosciences 10 Accommodation of Uranium into the Garnet Structure Sergey V.Yudintsev1 Summary: of tetravalent ions (Ce4+...

38

E-Print Network 3.0 - alkali metal picrates Sample Search Results  

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

layers of alkali metals. 1. Introduction Optical... and Cu 6 by Chen et al. The adsorption of alkali atoms on transition metals is of great importance... . Secondharmonic...

39

E-Print Network 3.0 - alkali-aggregate reactions strengthening...  

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

Durability Issues K.W. Neale1 Summary: conducted on the FRP rehabilitation of concrete beams suffering from alkali aggregate reaction damage... to alkali aggregate reactions. FRP...

40

Studies of non-proportionality in alkali halide and strontium iodide scintillators using SLYNCI  

E-Print Network [OSTI]

in Alkali Halide and Strontium Iodide Scintillators Usingof europium doping level in strontium iodide. Directions offor several alkali halides, strontium iodide, and lanthanum

Ahle, Larry

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "larson garnet alkali" 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 - alkali halide crystals Sample Search Results  

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

STUDIES IN ALKALI HALIDES Summary: of the alkali halides (KC1) the introduction of vacancies by thermal quenching of unirra- diated crystals has... ANNIHILATION STUDIES IN...

42

E-Print Network 3.0 - alkali chloride ternary Sample Search Results  

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

has been detected in alkali fluorides... that luminescence from alkali halides excited by ionizing radiation at low temperatures occurs through Source: Ecole Polytechnique, Centre...

43

E-Print Network 3.0 - alkali metal hydrides Sample Search Results  

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

Hf for selected alkali metal hydrides, alkaline earth metal hydrides, transition metal hydrides... of binary hydrides based on alkali metals, alkaline earth ... Source:...

44

Single-crystal elasticity of grossular-and almandine-rich garnets to 11 GPa by Brillouin  

E-Print Network [OSTI]

to 11 GPa in a diamond anvil cell. The experiments were carried out using a 16:3:1 methanol is the dissolution of pyroxene into the garnet structure producing Al-deficient garnets (majorite) that are stable

Duffy, Thomas S.

45

Author's personal copy Corundum-bearing garnet peridotite from northern Dominican Republic  

E-Print Network [OSTI]

Author's personal copy Corundum-bearing garnet peridotite from northern Dominican Republic in the late Cretaceous to early Tertiary subduction complex in northern Dominican Republic. The garnet., 2009) and in the Rio San Juan Complex of northern Dominican Republic (Abbott et al., 2005, 2006, 2007

46

Joseph M. Pyle Frank S. Spear An empirical garnet (YAG) xenotime thermometer  

E-Print Network [OSTI]

Joseph M. Pyle á Frank S. Spear An empirical garnet (YAG) ± xenotime thermometer Received: 21) and the thermometer has a precision of a few degrees in this range. Introduction The sensitivity of trace elements with xenotime are presented, a garnet-xenotime thermometer is developed, and applications and limita- tions

Spear, Frank S.

47

Controlled in-situ dissolution of an alkali metal  

DOE Patents [OSTI]

A method for the controllable dissolution of one or more alkali metals from a vessel containing a one or more alkali metals and/or one or more partially passivated alkali metals. The vessel preferably comprising a sodium, NaK or other alkali metal-cooled nuclear reactor that has been used. The alkali metal, preferably sodium, potassium or a combination thereof, in the vessel is exposed to a treatment liquid, preferably an acidic liquid, more preferably citric acid. Preferably, the treatment liquid is maintained in continuous motion relative to any surface of unreacted alkali metal with which the treatment liquid is in contact. The treatment liquid is preferably pumped into the vessel containing the one or more alkali metals and the resulting fluid is extracted and optionally further processed. Preferably, the resulting off-gases are processed by an off-gas treatment system and the resulting liquids are processed by a liquid disposal system. In one preferred embodiment, an inert gas is pumped into the vessel along with the treatment liquid.

Jones, Jeffrey Donald; Dooley, Kirk John; Tolman, David Donald

2012-09-11T23:59:59.000Z

48

alkali treated wheat: Topics by E-print Network  

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

is predicted in alkali metal clusters where it is represented by Ipi2- low-energy excitations of valence electrons with strong M2 transitions to the ground state. We...

49

CHARGE TRANSFER BETWEEN POSITIVE ALKALI IONS AND ATOMS  

E-Print Network [OSTI]

average velocity of atoms , ::. : . . :. . in the oven. Thisfor a potassium ", . atom beam operating under conditionsPOSITIVE ALKALI IONS AND ATOMS I W. R. Gentry, Yuan-tseh L e

Gentry, W.R.; Lee, Yuan-tseh; Mahan, Bruce H.

2008-01-01T23:59:59.000Z

50

alkali metal chlorides: Topics by E-print Network  

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

NMR to explosives detec- tion and fundamental Romalis, Mike 2 Spin-Exchange Optical Pumping with Alkali-Metal Vapors Physics Websites Summary: Spin-Exchange Optical Pumping with...

51

alkali metal chloride: Topics by E-print Network  

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

NMR to explosives detec- tion and fundamental Romalis, Mike 2 Spin-Exchange Optical Pumping with Alkali-Metal Vapors Physics Websites Summary: Spin-Exchange Optical Pumping with...

52

alkali metal ion: Topics by E-print Network  

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(more) Pramitha,V 2010-01-01 88 Ab initio prediction of thermodynamics in alkali metal-air batteries . Open Access Theses and Dissertations Summary: ??Electric vehicles ("EVs")...

53

alkali metal ions: Topics by E-print Network  

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

(more) Pramitha,V 2010-01-01 88 Ab initio prediction of thermodynamics in alkali metal-air batteries . Open Access Theses and Dissertations Summary: ??Electric vehicles ("EVs")...

54

alkali silicate glasses: Topics by E-print Network  

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

with two laser beams. In this regime, the two-photon detuning from the Raman resonance controls Yavuz, Deniz 412 1262 J. Phys. Chem. 1984, 88, 1262-1268 Alkali Oxides. Analysis...

55

alkali phosphate glasses: Topics by E-print Network  

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

with two laser beams. In this regime, the two-photon detuning from the Raman resonance controls Yavuz, Deniz 242 1262 J. Phys. Chem. 1984, 88, 1262-1268 Alkali Oxides. Analysis...

56

alkali tellurite glasses: Topics by E-print Network  

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

with two laser beams. In this regime, the two-photon detuning from the Raman resonance controls Yavuz, Deniz 196 1262 J. Phys. Chem. 1984, 88, 1262-1268 Alkali Oxides. Analysis...

57

alkali halides calorimetro: Topics by E-print Network  

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

are considered. We predict the major alkali and halogen species in a Pele-like volcanic gas and the major alklai and halogen condensates. We also model disequilibrium chemistry...

58

E-Print Network 3.0 - alkali vaporisation titandioxidadditiv...  

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PARTICULATES 4.2.2004 5-1 Chapter 5 Particulates Summary: hundred degrees lower than for coal in order to avoid loss of alkali by vaporisation. Typical values... , aluminum and...

59

The reaction dynamics of alkali dimer molecules and electronically excited alkali atoms with simple molecules  

SciTech Connect (OSTI)

This dissertation presents the results from the crossed molecular beam studies on the dynamics of bimolecular collisions in the gas phase. The primary subjects include the interactions of alkali dimer molecules with simple molecules, and the inelastic scattering of electronically excited alkali atoms with O{sub 2}. The reaction of the sodium dimers with oxygen molecules is described in Chapter 2. Two reaction pathways were observed for this four-center molecule-molecule reaction, i.e. the formations of NaO{sub 2} + Na and NaO + NaO. NaO{sub 2} products exhibit a very anisotropic angular distribution, indicating a direct spectator stripping mechanism for this reaction channel. The NaO formation follows the bond breaking of O{sub 2}, which is likely a result of a charge transfer from Na{sub 2} to the excited state orbital of O{sub 2}{sup {minus}}. The scattering of sodium dimers from ammonium and methanol produced novel molecules, NaNH{sub 3} and Na(CH{sub 3}OH), respectively. These experimental observations, as well as the discussions on the reaction dynamics and the chemical bonding within these molecules, will be presented in Chapter 3. The lower limits for the bond dissociation energies of these molecules are also obtained. Finally, Chapter 4 describes the energy transfer between oxygen molecules and electronically excited sodium atoms.

Hou, H. [Univ. of California, Berkeley, CA (United States). Dept. of Chemistry]|[Lawrence Berkeley National Lab., CA (United States). Chemical Sciences Div.

1995-12-01T23:59:59.000Z

60

Ferromagnetic resonance of sputtered yttrium iron garnet nanometer films  

SciTech Connect (OSTI)

Growth of nm-thick yttrium iron garnet (YIG) films by sputtering and ferromagnetic resonance (FMR) properties in the films were studied. The FMR linewidth of the YIG film decreased as the film thickness was increased from several nanometers to about 100?nm. For films with very smooth surfaces, the linewidth increased linearly with frequency. In contrast, for films with big grains on the surface, the linewidth-frequency response was strongly nonlinear. Films in the 726?nm thickness range showed a surface roughness between 0.1?nm and 0.4?nm, a 9.48-GHz FMR linewidth in the 610?Oe range, and a damping constant of about 0.001.

Liu, Tao [Department of Physics, Colorado State University, Fort Collins, Colorado 80523 (United States); State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054 (China); Chang, Houchen; Sun, Yiyan; Kabatek, Michael; Wu, Mingzhong, E-mail: mwu@lamar.colostate.edu [Department of Physics, Colorado State University, Fort Collins, Colorado 80523 (United States); Vlaminck, Vincent; Hoffmann, Axel [Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States); Deng, Longjiang [State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054 (China)

2014-05-07T23:59:59.000Z

Note: This page contains sample records for the topic "larson garnet alkali" 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

E-Print Network 3.0 - alkali metal iodogallates Sample Search...  

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

to the usual case of an alkali metal reservoir... to the vacuum pumps or due to adsorption of the alkali atoms onto ... Source: Jin, Deborah - JILA, University of Colorado at...

62

E-Print Network 3.0 - alkali metal astatides Sample Search Results  

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

to the usual case of an alkali metal reservoir... to the vacuum pumps or due to adsorption of the alkali atoms onto ... Source: Jin, Deborah - JILA, University of Colorado at...

63

E-Print Network 3.0 - alkali metals Sample Search Results  

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

to the usual case of an alkali metal reservoir... to the vacuum pumps or due to adsorption of the alkali atoms onto ... Source: Jin, Deborah - JILA, University of Colorado at...

64

E-Print Network 3.0 - alkali metal 2-aminonicotinates Sample...  

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

to the usual case of an alkali metal reservoir... to the vacuum pumps or due to adsorption of the alkali atoms onto ... Source: Jin, Deborah - JILA, University of Colorado at...

65

E-Print Network 3.0 - alkali metal thermal-to-electric Sample...  

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

to the usual case of an alkali metal reservoir... to the vacuum pumps or due to adsorption of the alkali atoms onto ... Source: Jin, Deborah - JILA, University of Colorado at...

66

E-Print Network 3.0 - alkali metal perrhenate Sample Search Results  

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to the usual case of an alkali metal reservoir... to the vacuum pumps or due to adsorption of the alkali atoms onto ... Source: Jin, Deborah - JILA, University of Colorado at...

67

E-Print Network 3.0 - alkali metal diphenylamide Sample Search...  

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to the usual case of an alkali metal reservoir... to the vacuum pumps or due to adsorption of the alkali atoms onto ... Source: Jin, Deborah - JILA, University of Colorado at...

68

E-Print Network 3.0 - alkali metals analiz Sample Search Results  

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to the usual case of an alkali metal reservoir... to the vacuum pumps or due to adsorption of the alkali atoms onto ... Source: Jin, Deborah - JILA, University of Colorado at...

69

E-Print Network 3.0 - alkali metal isotopes Sample Search Results  

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to the usual case of an alkali metal reservoir... to the vacuum pumps or due to adsorption of the alkali atoms onto ... Source: Jin, Deborah - JILA, University of Colorado at...

70

E-Print Network 3.0 - alkali metals sintez Sample Search Results  

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to the usual case of an alkali metal reservoir... to the vacuum pumps or due to adsorption of the alkali atoms onto ... Source: Jin, Deborah - JILA, University of Colorado at...

71

E-Print Network 3.0 - alkali metal intercalates Sample Search...  

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<< < 1 2 3 4 5 > >> 1 Work functions of pristine and alkali-metal intercalated carbon nanotubes and bundles Jijun Zhao,1, Summary: Work functions of pristine and alkali-metal...

72

E-Print Network 3.0 - alkali metal alkaline Sample Search Results  

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with alkali-metals 9, loi, alkaline earth metals l,18 and some of other rare-earth elements 19, 20 have... alkali metals were doped into C60 solids 9 and...

73

E-Print Network 3.0 - alkalies Sample Search Results  

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

Summary: the results of a laboratory investigation for the use of high-volume clean-coal ash on mitigating alkali... alkali-silica reaction of the blends was determined...

74

E-Print Network 3.0 - alkali substitutes technical Sample Search...  

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

on Fly Ash... the results of a laboratory investigation for the use of high-volume clean-coal ash on mitigating alkali... alkali-silica reaction of the blends was determined...

75

E-Print Network 3.0 - alkali Sample Search Results  

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

Summary: the results of a laboratory investigation for the use of high-volume clean-coal ash on mitigating alkali... alkali-silica reaction of the blends was determined...

76

E-Print Network 3.0 - alkalis tuhkan muuntuminen Sample Search...  

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

Summary: the results of a laboratory investigation for the use of high-volume clean-coal ash on mitigating alkali... alkali-silica reaction of the blends was determined...

77

E-Print Network 3.0 - alkali pre-treatments producao Sample Search...  

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

Summary: the results of a laboratory investigation for the use of high-volume clean-coal ash on mitigating alkali... alkali-silica reaction of the blends was determined...

78

Spin polarizations of photoelectrons emitted by alkali atoms  

E-Print Network [OSTI]

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o 55 LXS f OF %BURRS 1 Tso-photon ionization of an ~ atom. ~ . ~ ~ . . ~ ~, ~ 2 ihe photoelectron and the incident radiation. . . . . . ~ 3. ')he transitions fram the ground state substates of an alkali sterne...O and Qe2e ~ ~ ~ Ground state substate populations oi' the alkali atoms f' or &"/& -5o. I"p'- 0'4 ~ Ip? - 'fo ~ X" -0. 0~ 0. 2. . e. ee ~ e ~ e ~ ~ ~ . ~ e ~ e. eee ~ e ~ ~ ~ ~ ~ t Spin polaris. zations of the photoelectrons forX. /X. 50e (p? ~10 Vo t 7...

Stuart, Kenneth Charles

1976-01-01T23:59:59.000Z

79

Upgrading of petroleum oil feedstocks using alkali metals and hydrocarbons  

DOE Patents [OSTI]

A method of upgrading an oil feedstock by removing heteroatoms and/or one or more heavy metals from the oil feedstock composition. This method reacts the oil feedstock with an alkali metal and an upgradant hydrocarbon. The alkali metal reacts with a portion of the heteroatoms and/or one or more heavy metals to form an inorganic phase separable from the organic oil feedstock material. The upgradant hydrocarbon bonds to the oil feedstock material and increases the number of carbon atoms in the product. This increase in the number of carbon atoms of the product increases the energy value of the resulting oil feedstock.

Gordon, John Howard

2014-09-09T23:59:59.000Z

80

Magnetic polarizations of electrons at dislocations in alkali halides  

E-Print Network [OSTI]

interval. 25 NAGNETIC POLARIZATIONS OF ELECTRONS AT DISLOCATIONS IN ALKALI HALIDES 1. INTRODUCTION. The new magnetic effects observed in our laboratory on a number of single crystals of alkali halides are thought to be caused by electrons trapped... on d1slocations. The magnet1c properties are perhaps more interesting as a bas1c contribution to the sc1ence of magnetism than to a knowledge of d. islocations 1n these very pure, optically clear, s1ngle crystals of alkal1 halides. The gross magnet...

McClurg, Gene Roark

1969-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "larson garnet alkali" 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

E-Print Network 3.0 - alkali activated slag Sample Search Results  

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

Databases and Resources ; Environmental Sciences and Ecology ; Geosciences 16 DATABASE FOR PREMATURE CONCRETE DETERIORATION Summary: -4085: Preventing Alkali-Silica...

82

E-Print Network 3.0 - alkali-metal atoms li Sample Search Results  

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

93 Educational Multiwavelength Atomic Emission Spectrometer Summary: detector; Fiber optics; Alkali metals; Alkaline earth metals; Flame spectroscopy; Chemical education....

83

Method of assembling and sealing an alkali metal battery  

DOE Patents [OSTI]

A method of initially assembling and then subsequently hermetically sealing a container portion of an alkali metal battery to a ceramic portion of such a battery is disclosed. Sealing surfaces are formed respectively on a container portion and a ceramic portion of an alkali metal battery. These sealing surfaces are brought into juxtaposition and a material is interposed there between. This interposed material is one which will diffuse into sealing relationship with both the container portion and the ceramic portion of the alkali metal battery at operational temperatures of such a battery. A pressure is applied between these sealing surfaces to cause the interposed material to be brought into intimate physical contact with such juxtaposed surfaces. A temporary sealing material which will provide a seal against a flow of alkali metal battery reactants there through at room temperatures and is applied over the juxtaposed sealing surfaces and material interposed there between. The entire assembly is heated to an operational temperature so that the interposed material diffuses into the container portion and the ceramic portion to form a hermetic seal there between. The pressure applied to the juxtaposed sealing surfaces is maintained in order to ensure the continuation of the hermetic seal. 4 figs.

Elkins, P.E.; Bell, J.E.; Harlow, R.A.; Chase, G.G.

1983-03-01T23:59:59.000Z

84

alkali earth metal: Topics by E-print Network  

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

alkali earth metal First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Efficient qubit detection using...

85

alkali earth metals: Topics by E-print Network  

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

alkali earth metals First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 Next Page Last Page Topic Index 1 Efficient qubit detection using...

86

TRANSMISSION ELECTRON MICROSCOPY OF WEAKLY DEFORMED ALKALI HALIDE CRYSTALS  

E-Print Network [OSTI]

377 TRANSMISSION ELECTRON MICROSCOPY OF WEAKLY DEFORMED ALKALI HALIDE CRYSTALS H. STRUNK Max'importance croissante du durcissement de la solution solide. Abstract. 2014 Transmission electron microscopy (TEM Abstracts 7j66 - 7 I' 1. Introduction. - It is only some years ago that transmission electron microscopy

Boyer, Edmond

87

Core repulsion e ects in alkali trimers R. Gu erout  

E-Print Network [OSTI]

.e. molecules exhibiting a permanent electric dipole moment). Elementary chemical reactions at very low separation, involved when the potential energy surfaces of alkali trimers are calculated with a quantum-parity violation [10, 11, 12], and the time-independence of the electron- to-nuclear and nuclear-to-nuclear mass

Recanati, Catherine

88

A new formulation of garnet-clinopyroxene thermometer using large number of experimental data with graphite capsules  

E-Print Network [OSTI]

A new formulation of garnet-clinopyroxene thermometer using large number of experimental data as run products are accumulated, and a new formulation of garnet-clinopyroxene thermometer is created and clinopyroxene is fixed to be ­ 120.72 (J/kbar.mol). The regressed and obtained thermometer formulation

Nakamura, Daisuke

89

Reply to Comment on "Garnet-bearing ultramafic rocks from the Dominican Republic: Fossil mantle plume fragments in an ultra high pressure oceanic complex?"  

E-Print Network [OSTI]

Discussion Reply to Comment on "Garnet-bearing ultramafic rocks from the Dominican Republic: Fossil-pressure metamorphism REE partitioning Garnet-spinel thermometry Dominican Republic Two competing hypotheses have been proposed for garnet-bearing ultramafic rocks in the Dominican Republic: (1) The ultrahigh pressure (UHP

Abbott Jr., Richard N.

90

Semiconductor sensor for optically measuring polarization rotation of optical wavefronts using rare earth iron garnets  

DOE Patents [OSTI]

Described are the design of a rare earth iron garnet sensor element, optical methods of interrogating the sensor element, methods of coupling the optical sensor element to a waveguide, and an optical and electrical processing system for monitoring the polarization rotation of a linearly polarized wavefront undergoing external modulation due to magnetic field or electrical current fluctuation. The sensor element uses the Faraday effect, an intrinsic property of certain rare-earth iron garnet materials, to rotate the polarization state of light in the presence of a magnetic field. The sensor element may be coated with a thin-film mirror to effectively double the optical path length, providing twice the sensitivity for a given field strength or temperature change. A semiconductor sensor system using a rare earth iron garnet sensor element is described.

Duncan, Paul G. (8544 Electric Ave., Vienna, VA 22182)

2002-01-01T23:59:59.000Z

91

The unexpected properties of alkali metal iron selenide superconductors  

SciTech Connect (OSTI)

The iron-based superconductors that contain FeAs layers as the fundamental building block in the crystal structures have been rationalized in the past using ideas based on the Fermi surface nesting of hole and electron pockets when in the presence of weak Hubbard U interactions. This approach seemed appropriate considering the small values of the magnetic moments in the parent compounds and the clear evidence based on photoemission experiments of the required electron and hole pockets. However, recent results in the context of alkali metal iron selenides, with generic chemical composition AxFe2ySe2 (A alkali metal element), have challenged those previous ideas since at particular compositions y the low-temperature ground states are insulating and display antiferromagnetic order with large iron magnetic moments. Moreover, angle-resolved photoemission studies have revealed the absence of hole pockets at the Fermi level in these materials. The present status of this exciting area of research, with the potential to alter conceptually our understanding of the ironbased superconductors, is here reviewed, covering both experimental and theoretical investigations. Other recent related developments are also briefly reviewed, such as the study of selenide two-leg ladders and the discovery of superconductivity in a single layer of FeSe. The conceptual issues considered established for the alkali metal iron selenides, as well as several issues that still require further work, are discussed.

Dagotto, Elbio R [ORNL

2013-01-01T23:59:59.000Z

92

Determination of oxygen in molten alkali halide salts by proton activation analysis  

SciTech Connect (OSTI)

The authors have recently used a lanthanum fluoride precipitation method to separate /sup 18/F produced from proton activation of /sup 18/O in alkali chloride and fluoride salts. The procedure was developed for studying dissolved oxide species in alkali halide melts. Determination of oxygen in these systems is important for research in batteries and in extractive metallurgy utilizing molten salts as solvents. The details are given oxygen determination in alkali chloride and fluoride systems.

Wai, C.M.; Dysart, M.E.

1986-12-01T23:59:59.000Z

93

E-Print Network 3.0 - alkali- erdalkali- und Sample Search Results  

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

from a potentially reactive state to an innocuous state. Researchers... Concrete, Coal Combustion By-Products, Fly Ash, High-Volume Fly Ash Concrete, Alkali-Silica...

94

E-Print Network 3.0 - alkali modified sbn Sample Search Results  

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

adsorbate is ionised on the surface and that the alkali core is not modified by the adsorption. We... Review Excited states in the alkalinoble ... Source: Bauer, Michael -...

95

E-Print Network 3.0 - anionic alkali mineral Sample Search Results  

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

Ecole Polytechnique, Centre de mathmatiques Collection: Mathematics 17 Definitions CaX(s) + 90 Summary: by an activity coefficient, (. Alkali Metals - elements in the 1A...

96

E-Print Network 3.0 - aqueous alkali metal Sample Search Results  

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

Mountain Project, US EPA Collection: Environmental Sciences and Ecology 16 Definitions CaX(s) + 90 Summary: by an activity coefficient, (. Alkali Metals - elements in the 1A...

97

E-Print Network 3.0 - alkali- earth elements Sample Search Results  

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

earth elements Search Powered by Explorit Topic List Advanced Search Sample search results for: alkali- earth elements Page: << < 1 2 3 4 5 > >> 1 JOURNAL DE PHYSIQUE Colloque...

98

E-Print Network 3.0 - alkali alkaline earth Sample Search Results  

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

Waterloo Collection: Chemistry 2 GEOL 305 Lecture 5 Felsic MaficIntermediate Summary: rare rhyolite Calc-alkaline and tholeiite basalts common, with less alkali basalt Mafic...

99

E-Print Network 3.0 - alkali ion scattering Sample Search Results  

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

3 Floppy modes and the Boson peak in crystalline and amorphous silicates: an inelastic neutron scattering study Summary: ion from Li+ to K+ in the alkali disilicate glasses,...

100

E-Print Network 3.0 - alkali carbonate reactions Sample Search...  

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

de mathmatiques Collection: Mathematics 14 REFRACTORIES FOR HAZARDOUS WASTE INCINERATION AN OVERVIEW Summary: to be upgraded. How ever, alkali reactions may still occur....

Note: This page contains sample records for the topic "larson garnet alkali" 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

Accelerated test methods for evaluating alkali-silica reactivity of recycled concrete aggregates.  

E-Print Network [OSTI]

??This thesis reports the findings of a study carried out to determine the effectiveness of Accelerated Tests in evaluating the Alkali-Silica Reactivity of Recycled Concrete (more)

Johnson, Robert C (Author)

2011-01-01T23:59:59.000Z

102

E-Print Network 3.0 - alkali feldspars ii Sample Search Results  

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

leaching is spatially heterogeneous on some altered alkali Z .feldspar surfaces Gout et al., 1997 . Similar... weathering: II. Observation of feldspars from soils. Geochim....

103

E-Print Network 3.0 - alkali halides irradiated Sample Search...  

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

U ET ASSOCIATIONS DE CENTRES COLORES ATOMIC HYDROGEN CENTRES IN IONIC CRYSTALS Summary: . Abstract. - Experimental and theoretical work on atomic hydrogen centres in alkali halides...

104

E-Print Network 3.0 - alkali vapor species Sample Search Results  

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

Volume 4, novembre 1994 Summary: 60 specines aged at elevated temperatures in alkali-metal vapors have shown that such treatmerlt... -T superconductivity in C specimens annealed...

105

E-Print Network 3.0 - alkali metal-doped organic Sample Search...  

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

appeared to be rich in alkali... CI), inorganic grains finely dispersed in the organic structure of these materials or as cations associated... with the organic structure...

106

Alkali-lead-iron phosphate glass and associated method  

DOE Patents [OSTI]

A glass composition and method of preparation utilizes a mixture consisting of phosphorus oxide within the range of about 40 to 49 molar percent, lead oxide within the range of about 10 to 25 molar percent, iron oxide within the range of about 10 to 17 molar percent and an alkali oxide within the range of about 23 to 30 molar percent. The glass resulting from the melting and subsequent solidifying of the mixture possesses a high degree of durability and a coefficient of thermal expansion as high as that of any of a number of metals. Such features render this glass highly desirable in glass-to-metal seal applications. 6 figures.

Boatner, L.A.; Sales, B.C.; Franco, S.C.S.

1994-03-29T23:59:59.000Z

107

Alkali-lead-iron phosphate glass and associated method  

DOE Patents [OSTI]

A glass composition and method of preparation utilizes a mixture consisting of phosphorus oxide within the range of about 40 to 49 molar percent, lead oxide within the range of about 10 to 25 molar percent, iron oxide within the range of about 10 to 17 molar percent and an alkali oxide within the range of about 23 to 30 molar percent. The glass resulting from the melting and subsequent solidifying of the mixture possesses a high degree of durability and a coefficient of thermal expansion as high as that of any of a number of metals. Such features render this glass highly desirable in glass-to-metal seal applications.

Boatner, Lynn A. (Oak Ridge, TN); Sales, Brian C. (Knoxville, TN); Franco, Sofia C. S. (Santafe de Bogota, CO)

1994-01-01T23:59:59.000Z

108

Novel rubidium atomic beam with an alkali dispenser source  

SciTech Connect (OSTI)

We describe a novel atomic beam apparatus with a resistively heated alkali dispenser source and a cold-pumped intermediate chamber. Using laser fluorescence spectroscopy we have measured the atomic density to be 3x10{sup 11} atoms/m{sup 3} and the total flux to be 5x10{sup 8} atoms/s in a 0.3 cm diameter beam. We have also characterized the velocity distribution of the source based on the Doppler-shifted fluorescence spectrum. The compact geometry, flexibility, and simplicity of the beam may make it useful as an optical frequency reference or for experiments on atom-cooling.

Roach, Timothy M.; Henclewood, Dwayne [College of the Holy Cross, Worcester, Massachusetts 01610 (United States)

2004-11-01T23:59:59.000Z

109

Spin wave localization in one-dimensional magnonic microcavity comprising yttrium iron garnet  

SciTech Connect (OSTI)

We demonstrate the localization of magnetostatic surface waves, i.e., spin waves, in a one-dimensional magnonic microcavity substantialized with periodical conductivity modulation. The narrow localized state is observed inside band gaps and is responsible for a sharp transmission peak. The experimental results strongly agree with the theoretical prediction made with the shape magnetic anisotropy of the propagating medium composed of yttrium iron garnet taken into account.

Kanazawa, Naoki; Goto, Taichi, E-mail: goto@ee.tut.ac.jp; Inoue, Mitsuteru [Department of Electrical and Electronic Information Engineering, Toyohashi University of Technology, 1-1 Hibari-Ga-Oka, Tempaku, Toyohashi, Aichi 441-8580 (Japan)

2014-08-28T23:59:59.000Z

110

Bulk optical damage thresholds for doped and undoped, crystalline and ceramic yttrium aluminum garnet  

SciTech Connect (OSTI)

We measured the bulk optical damage thresholds of pure and Nd-doped ceramic yttrium aluminum garnet (YAG), and of pure, Nd-doped, Cr-doped, and Yb-doped crystalline YAG. We used 9.9 ns, 1064 nm, single-longitudinal mode, TEM00 pulses, to determine that the breakdown thresholds are deterministic, with multiple-pulse thresholds ranging from 1.1 to 2.2 kJ/cm{sup 2}.

Do, Binh T.; Smith, Arlee V.

2009-06-20T23:59:59.000Z

111

Effect of recording condition on the diffraction efficiency of magnetic hologram with magnetic garnet films  

SciTech Connect (OSTI)

A holographic memory has been attracting attention as recording media with high recording density and high data transfer rate. We have studied the magnetic garnets as a rewritable and long life media for magnetic holography. However, since the signal intensity of reconstructed image was relatively low, the effects of recording conditions on the diffraction efficiency of magnetic hologram were investigated with experiments and the numerical simulation using COMSOL multi-physics. The diffraction efficiency tends to decrease as increasing the spatial frequency, and the use of short pulse laser with the pulse width of 50 ps was found to be effective to achieve high diffraction efficiency. This suggests that the formation of clear magnetic fringe similar to interference pattern can be obtained by the use of short pulse laser since undesirable heat diffusion during radiation does not occur. On the other hand, the diffraction efficiency increased as increasing the film thickness up to 3.1??m but was saturated in the garnet film thicker than 3.1??m in the case of spatial frequency of 1500 line pair/mm. The numerical simulation showed that the effective depth of magnetic fringe was limited about 1.8??m irrespective of the garnet film thickness because the fringes were connected by thermal diffusion near the surface of the film, and the effective depth is limited due to this connection of the magnetic fringe. Avoiding this fringe connection, much higher diffraction efficiency will be achieved.

Nakamura, Yuichi, E-mail: nakamura@ee.tut.ac.jp; Takagi, Hiroyuki; Lim, Pang Boey; Inoue, Mitsuteru [Department of Electrical and Electronic Engineering, Toyohashi University of Technology, 1-1 Tempaku-cho, Toyohashi, Aichi 441-8580 (Japan)

2014-09-14T23:59:59.000Z

112

Cerium Substitution in Yttrium Iron Garnet: Valence State, Structure, and Energetics  

SciTech Connect (OSTI)

The garnet structure is a promising nuclear waste form because it can accommodate various actinide elements. Y3Fe5O12 (YIG) is a model composition for such substitutions. Since cerium (Ce) can be considered an analogue of actinide elements such as thorium (Th), plutonium (Pu), and uranium (U), studying the local structure and thermodynamic stability of Ce-substituted YIG (Ce:YIG) can provide insights into the structural and energetic aspects of large ion substitution in garnets. Single phases of yttrium iron garnet with Ce substitution up to 20 mol % (Y3-xCexFe5O12 with 0 ? x ? 0.2) were synthesized through a citrate-nitrate combustion method. The oxidation state of cerium was examined by X-ray absorption near edge structure spectroscopy (XANES); the oxidation state and site occupancy of Fe as a function of Ce loading also was monitored by 57Fe-Mssbauer spectroscopy. These measurements establish that Ce is predominantly in the trivalent state at low substitution levels, while a mixture of trivalent and tetravalent states are observed at higher concentrations. Fe was predominately trivalent and exists in multiple environments. High temperature oxide melt solution calorimetry was used to determine the enthalpy of formation of these Ce-substituted YIG garnets. The thermodynamic analysis demonstrated that, although there is an entropic driving force for the substitution of Ce for Y, the substitution reaction is enthalpically unfavorable. The experimental results are complemented by electronic structure calculations performed within the framework of density functional theory (DFT) with Hubbard-U corrections, which reproduce the observed increase in the tendency for tetravalent Ce to be present with higher loading of Ce. The DFT+U results suggest that the energetics underlying the formation of tetravalent Ce involves a competition between an unfavorable energy to oxidize Ce and reduce Fe, and a favorable contribution due to strain-energy reduction. The structural and thermodynamic findings suggest a strategy to design thermodynamically-favorable substitutions of actinides in the garnet system.

Guo, Xiaofeng; Tavakoli, Amir H.; Sutton, Steve; Kukkadapu, Ravi K.; Qi, Liang; Lanzirotti, Anthony; Newville, Mathew; Asta, Mark D.; Navrotsky, Alexandra

2014-01-28T23:59:59.000Z

113

Fabrication of alkali halide UV photocathodes by pulsed laser deposition  

SciTech Connect (OSTI)

A technique has been proposed for the fabrication of atmospheric corrosion resistant alkali halide UV photocathodes by pulsed laser deposition. We produced photocathodes with a highly homogeneous photoemissive layer well-adherent to the substrate. The photocathodes were mounted in a vacuum photodiode, and a tungsten grid was used as an anode. Using pulsed UV lasers, we carried out experiments aimed at evaluating the quantum efficiency of the photocathodes. With a dc voltage applied between the photocathode and anode grid, we measured a shunt signal proportional to the total charge emitted by the cathode exposed to UV laser light. The proposed deposition technique enables one to produce photocathodes with photoemissive layers highly uniform in quantum efficiency, which is its main advantage over thin film growth by resistive evaporation. (laser technologies)

Brendel', V M; Bukin, V V; Garnov, Sergei V; Bagdasarov, V Kh; Denisov, N N; Garanin, Sergey G; Terekhin, V A; Trutnev, Yurii A

2012-12-31T23:59:59.000Z

114

3718-F Alkali Metal Treatment and Storage Facility Closure Plan  

SciTech Connect (OSTI)

Since 1987, Westinghouse Hanford Company has been a major contractor to the U.S. Department of Energy-Richland Operations Office and has served as co-operator of the 3718-F Alkali Metal Treatment and Storage Facility, the waste management unit addressed in this closure plan. The closure plan consists of a Part A Dangerous waste Permit Application and a RCRA Closure Plan. An explanation of the Part A Revision (Revision 1) submitted with this document is provided at the beginning of the Part A section. The closure plan consists of 9 chapters and 5 appendices. The chapters cover: introduction; facility description; process information; waste characteristics; groundwater; closure strategy and performance standards; closure activities; postclosure; and references.

none,

1991-12-01T23:59:59.000Z

115

Use of precalciners to remove alkali from raw materials in the cement industry. Final report, July 1978-July 1980  

SciTech Connect (OSTI)

The objective of this work was to develop an efficient means of removing alkali metal compounds (alkalies) from high-alkali aluminosilicate raw materials of the type commonly used as part of cement raw mixes in order to increase the energy efficiency of cement manufacture. The intention of this project was to determine whether the high-alkali raw materials could be pyroprocessed separately to remove the alkalies before they entered the rotary kiln, where they would be mixed with the other raw feed components. If this could be achieved, considerable savings could be made in the energy required to remove alkalies, compared to conventional methods in which the cement raw mix must be treated as a whole. Two different methods of alkali removal were examined, namely, vaporization of alkalies at relatively low temperatures; and alkali-rich melt separation at relativey high temperatures. The results showed that the removal of alkalies by pyroprocessing of high-alkali raw feed components separate from the other cement raw mix components is not likely to be a practical alternative to the best available conventional precalciner technology. (LCL)

Gartner, E.M.

1980-07-01T23:59:59.000Z

116

Mixed ionic and electronic conducting electrode studies for an alkali metal thermal to electric converter  

E-Print Network [OSTI]

This research focuses on preparation, kinetics, and performance studies of mixed ionic and electronic conducting electrodes (MIEE) applied in an alkali metal thermal to electric converter (AMTEC). Two types of MIEE, metal/sodium titanate and metal...

Guo, Yuyan

2009-05-15T23:59:59.000Z

117

Alkali corrosion resistant coatings and ceramic foams having superfine open cell structure and method of processing  

DOE Patents [OSTI]

Alkali corrosion resistant coatings and ceramic foams having superfine open cell structure are created using sol-gel processes. The processes have particular application in creating calcium magnesium zirconium phosphate, CMZP, coatings and foams.

Brown, Jr., Jesse J. (Christiansburg, VA); Hirschfeld, Deidre A. (Elliston, VA); Li, Tingkai (Blacksburg, VA)

1993-12-07T23:59:59.000Z

118

E-Print Network 3.0 - alkali-metal vapor density Sample Search...  

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

Physics 65 nature physics | VOL 3 | APRIL 2007 | www.nature.comnaturephysics 227 REVIEW ARTICLE Summary: in a high-density alkali-metal vapor in low magnetic fields. Phys....

119

E-Print Network 3.0 - alkali earth aluminium Sample Search Results  

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

2 ThresholaStates of the Summary: of np(n + l)s and np n' d states of the alkaline earth elements do not apply directly to the alkali... earths. Moreover, as the nucleai...

120

E-Print Network 3.0 - alkali ion beams Sample Search Results  

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

beams Search Powered by Explorit Topic List Advanced Search Sample search results for: alkali ion beams Page: << < 1 2 3 4 5 > >> 1 METHOD FOR EFFICIENCY AND TIME RESPONSE...

Note: This page contains sample records for the topic "larson garnet alkali" 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

E-Print Network 3.0 - alkali ion exchange Sample Search Results  

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

Search Sample search results for: alkali ion exchange Page: << < 1 2 3 4 5 > >> 1 Corrosion mechanisms of low level vitrified radioactive waste in a loamy soil M.I. Ojovan1...

122

Detection of alkali-silica reaction swelling in concrete by staining  

DOE Patents [OSTI]

A method using concentrated aqueous solutions of sodium cobaltinitrite and rhodamine B is described which can be used to identify concrete that contains gels formed by the alkali-silica reaction (ASR). These solutions present little health or environmental risk, are readily applied, and rapidly discriminate between two chemically distinct gels; K-rich, Na--K--Ca--Si gels are identified by yellow staining, and alkali-poor, Ca--Si gels are identified by pink staining.

Guthrie, Jr., George D. (Santa Fe, NM); Carey, J. William (Santa Fe, NM)

1998-01-01T23:59:59.000Z

123

Detection of alkali-silica reaction swelling in concrete by staining  

DOE Patents [OSTI]

A method using concentrated aqueous solutions of sodium cobalt nitrite and rhodamine B is described which can be used to identify concrete that contains gels formed by the alkali-silica reaction (ASR). These solutions present little health or environmental risk, are readily applied, and rapidly discriminate between two chemically distinct gels; K-rich, Na-K-Ca-Si gels are identified by yellow staining, and alkali-poor, Ca-Si gels are identified by pink staining.

Guthrie, G.D. Jr.; Carey, J.W.

1998-04-14T23:59:59.000Z

124

In situ formation of coal gasification catalysts from low cost alkali metal salts  

DOE Patents [OSTI]

A carbonaceous material, such as crushed coal, is admixed or impregnated with an inexpensive alkali metal compound, such as sodium chloride, and then pretreated with a stream containing steam at a temperature of 350.degree. to 650.degree. C. to enhance the catalytic activity of the mixture in a subsequent gasification of the mixture. The treatment may result in the transformation of the alkali metal compound into another, more catalytically active, form.

Wood, Bernard J. (Santa Clara, CA); Brittain, Robert D. (Cupertino, CA); Sancier, Kenneth M. (Menlo Park, CA)

1985-01-01T23:59:59.000Z

125

Effect of reversible adsorption on the magnetic properties of iron garnet films  

SciTech Connect (OSTI)

The reversible change in the domain structure and the magnetic domain width in bismuth-containing iron garnet films with an easy magnetization axis oriented normal to their surface during adsorption caused by hydrogen bonds is studied by a magnetooptical method. The dependence of the domain width on the vapor pressure of methyl alcohol or water in a cell with a sample is determined, and the time dependence of the domain width induced by the adsorption-desorption processes occurring between methyl alcohol molecules or water molecules on the film surface is studied. A model is proposed to explain the detected effects.

Zubov, V. E., E-mail: zubov@magn.ru; Kudakov, A. D.; Levshin, N. L.; Vlasov, M. A. [Moscow State University (Russian Federation)

2013-05-15T23:59:59.000Z

126

Unidirectional anisotropy in the spin pumping voltage in yttrium iron garnet/platinum bilayers  

SciTech Connect (OSTI)

Detailed measurements of the dc voltage generated in a thin Pt layer deposited on films of yttrium iron garnet (YIG) have been carried out to study the spin pumping effect produced by magnetostatic (MS) modes excited by a microwave field. In relatively thick YIG films the modes are far apart so that one can identify clearly the spin pumping voltage in V{sub SP} produced by each MS mode. We have discovered that when the sputter deposition of the thin Pt layer is made on the YIG film magnetized by a static magnetic field, V{sub SP} exhibits a strong unidirectional anisotropy.

Vilela-Leao, L. H.; Salvador, C.; Azevedo, A.; Rezende, S. M.

2011-09-05T23:59:59.000Z

127

Spin-wave excitation and propagation in microstructured waveguides of yttrium iron garnet/Pt bilayers  

SciTech Connect (OSTI)

We present an experimental study of spin-wave excitation and propagation in microstructured waveguides consisting of a 100?nm thick yttrium iron garnet/platinum (Pt) bilayer. The life time of the spin waves is found to be more than an order of magnitude higher than in comparably sized metallic structures, despite the fact that the Pt capping enhances the Gilbert damping. Utilizing microfocus Brillouin light scattering spectroscopy, we reveal the spin-wave mode structure for different excitation frequencies. An exponential spin-wave amplitude decay length of 31??m is observed which is a significant step towards low damping, insulator based micro-magnonics.

Pirro, P.; Chumak, A. V.; Lgel, B.; Leven, B.; Hillebrands, B. [Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universitt Kaiserslautern, D-67663 Kaiserslautern (Germany)] [Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universitt Kaiserslautern, D-67663 Kaiserslautern (Germany); Brcher, T. [Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universitt Kaiserslautern, D-67663 Kaiserslautern (Germany) [Fachbereich Physik and Landesforschungszentrum OPTIMAS, Technische Universitt Kaiserslautern, D-67663 Kaiserslautern (Germany); Graduate School Materials Science in Mainz, Gottlieb-Daimler-Strasse 47, D-67663 Kaiserslautern (Germany); Dubs, C.; Surzhenko, O.; Grnert, P. [Innovent e.V., Prssingstrae 27B, 07745 Jena (Germany)] [Innovent e.V., Prssingstrae 27B, 07745 Jena (Germany)

2014-01-06T23:59:59.000Z

128

Alkali monolayers on transition metal surfaces: electronic promotion in catalysis  

SciTech Connect (OSTI)

Potassium monolayers on the platinum (111) crystal surface were studied most extensively. Ultraviolet photoelectron spectroscopy showed a large decrease in the work function of the surface when potassium was adsorbed. The heat of desorption of potassium decreased with increasing coverage. Low energy electron diffraction (LEED) showed that potassium forms hexagonal (close packed) overlayer structures. The effects of potassium on the chemisorption of various small molecules on Pt(111) were studied. Oxygen and nitric oxide were readily adsorbed and dissociated by potassium, forming stable potassium-oxide complexes on the surface. Adsorption heat of carbon monoxide on Pt(111) increased with potassium coadsorption. High resolution electron energy loss spectroscopy showed that the carbon-oxygen bond of adsorbed carbon monoxide was weakened by potassium. Adsorption heat of benzene, however, was decreased by coadsorbed potassium. A molecular orbital explanation was given to explain the effects of potassium. CO hydrogenation reactions performed on metal foils showed that the addition of alkali adlayers tends to decrease the overall rate of reaction. Changes in selectivity were noted, shifting the product distribution in favor of higher molecular weight species and from alkanes to alkenes.

Garfunkel, E.

1983-08-01T23:59:59.000Z

129

Barium oxide, calcium oxide, magnesia, and alkali oxide free glass  

DOE Patents [OSTI]

A glass composition consisting essentially of about 10-45 mole percent of SrO; about 35-75 mole percent SiO.sub.2; one or more compounds from the group of compounds consisting of La.sub.2O.sub.3, Al.sub.2O.sub.3, B.sub.2O.sub.3, and Ni; the La.sub.2O.sub.3 less than about 20 mole percent; the Al.sub.2O.sub.3 less than about 25 mole percent; the B.sub.2O.sub.3 less than about 15 mole percent; and the Ni less than about 5 mole percent. Preferably, the glass is substantially free of barium oxide, calcium oxide, magnesia, and alkali oxide. Preferably, the glass is used as a seal in a solid oxide fuel/electrolyzer cell (SOFC) stack. The SOFC stack comprises a plurality of SOFCs connected by one or more interconnect and manifold materials and sealed by the glass. Preferably, each SOFC comprises an anode, a cathode, and a solid electrolyte.

Lu, Peizhen Kathy; Mahapatra, Manoj Kumar

2013-09-24T23:59:59.000Z

130

The direct observation of alkali vapor species in biomass combustion and gasification  

SciTech Connect (OSTI)

This report summarizes new data from screening various feedstocks for alkali vapor release under combustion conditions. The successful development of a laboratory flow reactor and molecular beam, mass spectrometer interface is detailed. Its application to several herbaceous and woody feedstocks, as well as a fast-pyrolysis oil, under 800 and 1,100{degrees}C batch combustion, is documented. Chlorine seems to play a large role in the facile mobilization of potassium. Included in the report is a discussion of relevant literature on the alkali problem in combustors and turbines. Highlighted are the phenomena identified in studies on coal and methods that have been applied to alkali speciation. The nature of binding of alkali in coal versus biomass is discussed, together with the implications for the ease of release. Herbaceous species and many agricultural residues appear to pose significant problems in release of alkali species to the vapor at typical combustor temperatures. These problems could be especially acute in direct combustion fired turbines, but may be ameliorated in integrated gasification combined cycles.

French, R.J.; Dayton, D.C.; Milne, T.A.

1994-01-01T23:59:59.000Z

131

Communication: Angular momentum alignment and fluorescence polarization of alkali atoms photodetached from helium nanodroplets  

SciTech Connect (OSTI)

The theory of photofragments angular momentum polarization is applied to the photodetachment of an electronically excited alkali atom from a helium nanocluster (N = 200). The alignment of the electronic angular momentum of the bare excited alkali atoms produced is calculated quantum mechanically by solving the excited states coupled equations with potentials determined by density functional theory (DFT). Pronounced oscillations as a function of excitation energy are predicted for the case of Na@(He){sub 200}, in marked contrast with the absorption cross-section and angular distribution of the ejected atoms which are smooth functions of the energy. These oscillations are due to quantum interference between different coherently excited photodetachment pathways. Experimentally, these oscillations should be reflected in the fluorescence polarization and polarization-resolved photoelectron yield of the ejected atoms, which are proportional to the electronic angular momentum alignment. In addition, this result is much more general than the test case of NaHe{sub 200} studied here. It should be observable for larger droplets, for higher excited electronic states, and for other alkali as well as for alkali-earth atoms. Detection of these oscillations would show that the widely used pseudo-diatomic model can be valid beyond the prediction of absorption spectra and could help in interpreting parts of the dynamics, as already hinted by some experimental results on angular anisotropy of bare alkali fragments.

Hernando, Alberto; Beswick, J. Alberto; Halberstadt, Nadine [LCAR-IRSAMC, Universit Toulouse 3 - Paul Sabatier and CNRS, 31062 Toulouse (France)] [LCAR-IRSAMC, Universit Toulouse 3 - Paul Sabatier and CNRS, 31062 Toulouse (France)

2013-12-14T23:59:59.000Z

132

Synergistic capture mechanisms for alkali and sulfur species from combustion. Final report  

SciTech Connect (OSTI)

Experimental work was carried out on a 17 kW, 600 cm long, gas laboratory combustor, to investigate the post flame reactive capture of alkali species by kaolinite. Emphasis was on alkali/sorbent interactions occurring in flue gas at temperatures above the alkali dewpoint and on the formation of water insoluble reaction products. Time-temperature studies were carried out by injecting kaolinite at different axial points along the combustor. The effect of chlorine and sulfur on alkali capture was investigated by doping the flame with SO{sub 2} and Cl{sub 2} gases to simulate coal flame environments. Particle time and temperature history was kept as close as possible to that which would ordinarily be found in a practical boiler. Experiments designed to extract apparent initial reaction rates were carried using a narrow range, 1-2 {mu}m modal size sorbent, while, a coarse, multi size sorbent was used to investigate the governing transport mechanisms. The capture reaction has been proposed to be between alkali hydroxide and activated kaolinite, and remains so in the presence of sulfur and chlorine. The presence of sulfur reduces sodium capture by under 10% at 1300{degree}C. Larger reductions at lower temperatures are attributed to the elevated dewpoint of sodium ({approximately}850{degree}C) with subsequent reduction in sorbent residence time in the alkali gas phase domain. Chlorine reduces sodium capture by 30% across the temperature range covered by the present experiments. This result has been linked to thermodynamic equilibria between sodium hydroxide, sodium chloride and water.

Peterson, T.W.; Shadman, F.; Wendt, J.O.L.; Mwabe, P.O.

1994-02-01T23:59:59.000Z

133

Phase-controllable spin wave generation in iron garnet by linearly polarized light pulses  

SciTech Connect (OSTI)

A phase-controlled spin wave was non-thermally generated in bismuth-doped rare-earth iron garnet by linearly polarized light pulses. We controlled the initial phase of the spin wave continuously within a range of 180 by changing the polarization azimuth of the excitation light. The azimuth dependences of the initial phase and amplitude of the spin wave were attributed to a combination of the inverse Cotton-Mouton effect and photoinduced magnetic anisotropy. Temporally and spatially resolved spin wave propagation was observed with a CCD camera, and the waveform was in good agreement with calculations. A nonlinear effect of the spin excitation was observed for excitation fluences higher than 100 mJ/cm{sup 2}.

Yoshimine, Isao; Iida, Ryugo; Shimura, Tsutomu [Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505 (Japan); Satoh, Takuya, E-mail: satoh@phys.kyushu-u.ac.jp [Institute of Industrial Science, The University of Tokyo, Tokyo 153-8505 (Japan); PRESTO, Japan Science and Technology Agency, Tokyo 102-0076 (Japan); Department of Physics, Kyushu University, Fukuoka 812-8581 (Japan); Stupakiewicz, Andrzej; Maziewski, Andrzej [Laboratory of Magnetism, Faculty of Physics, University of Bialystok, Bialystok 15-424 (Poland)

2014-07-28T23:59:59.000Z

134

Ratchet effects for paramagnetic beads above striped ferrite-garnet films  

E-Print Network [OSTI]

We calculate the motion of a small paramagnetic bead which is manipulated by the stripe domain pattern of a ferrite-garnet film. A model for the bead's motion in a liquid above the film is developed and used to look for ratchet solutions, where the bead acquires net coherent motion in one direction when the external field is modulated periodically. We consider three cases. First, the ratchet, where the beads all go in the same direction. Second, the height dependent ratchet, where beads at different heights go in opposite direction. This case can be used to separate beads of different sizes, as considered in J. Phys. Chem. B 112, 3833 (2008). Third, we describe how the separation threshold can be tuned by changing the amplitude of the applied field. Finally, we describe a pseudo ratchet, where the external modulation is not periodic and the ratchet changes direction periodically.

Jorn Inge Vestgarden; Tom Henning Johansen

2011-09-29T23:59:59.000Z

135

Structure of the Alkali-metal-atom-Strontium molecular ions: towards photoassociation and formation of cold molecular ions  

E-Print Network [OSTI]

Structure of the Alkali-metal-atom-Strontium molecular ions: towards photoassociation and formation polarizability, of molecular ions composed of one alkali-metal atom and a Strontium ion are determined and a Strontium ion are discussed, as well as the formation of stable molecular ions. PACS numbers: 31.15.AR,31

136

The ground state of the polar alkali-Strontium molecules: potential energy curve and permanent dipole moment  

E-Print Network [OSTI]

The ground state of the polar alkali-Strontium molecules: potential energy curve and permanent In this study, we investigate the structure of the polar alkali-Strontium diatomic molecules as possible already been reported, while quantum degeneracy in Ytterbium [22, 23], Calcium [24], and Strontium [25, 26

Paris-Sud XI, Université de

137

Exciplex pumped alkali laser (XPAL) modeling and theory Andrew D. Palla, Joseph T. Verdeyen, and David L. Carroll  

E-Print Network [OSTI]

Exciplex pumped alkali laser (XPAL) modeling and theory Andrew D. Palla, Joseph T. Verdeyen pumped alkali laser (XPAL) system has been demonstrated in mixtures of Cs vapor, Ar, with and without ethane, by pumping Cs-Ar atomic collision pairs and subsequent dissociation of diatomic, electronically

Carroll, David L.

138

Potential Modulated Intercalation of Alkali Cations into Metal Hexacyanoferrate Coated Electrodes  

SciTech Connect (OSTI)

Nickel hexacyanoferrate is a polynuclear inorganic ion intercalation material that loads (intercalates) and elutes (deintercalates) alkali cations from its structure when electrochemically reduced and oxidized, respectively. Nickel hexacyanoferrrate (NiHCF) is known to preferentially intercalate cesium over all other alkali cations, thus providing a basis for a separation scheme that can tackle DOE's radiocesium contamination problem. This program studied fundamental issues in alkalization intercalation and deintercalation in nickel hexacyanoferrate compounds, with the goal of (1) quantifying the ion exchange selectivity properties from cation mixtures, (2) enhancing ion exchange capacities, and (3) and understanding the electrochemically-switched ion exchange process (ESIX).

Daniel T. Schwartz; Bekki Liu; Marlina Lukman; Kavita M. Jeerage; William A. Steen; Haixia Dai; Qiuming Yu; J. Antonio Medina

2002-02-18T23:59:59.000Z

139

Effect of alkali metals on the interaction of O/sub 2/ and CO with some transition-metal surfaces  

SciTech Connect (OSTI)

The interactions of O/sub 2/ and CO with alkali covered Ni, Ru, and Pt are reviewed with emphasis on the author's own studies. It is shown that the presence of alkalis changes the coadsorbates adsorption rates, heats of adsorption, and dissociative propensity, the strength of the effect depending on the alkali nature and coverage. The differences for the three substrates are interpreted comparing the properties of the clean surface. A detailed analysis of the coadsorbate--modifier interactions suggests that they depend on the adsorption state of the alkali species and the coadsorbate--substrate bond strength. Evidence of the formation of patches of ''surface complexes'' coexisting with the unperturbed surface is given and discussed in terms of strong direct alkali--coadsorbate interactions.

Kiskinova, M.

1987-07-01T23:59:59.000Z

140

E-Print Network 3.0 - alkali metal li Sample Search Results  

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

them together with a variety of optical data for alkali metals, and for Li... mopt PH PJM Li 1.153 1.526 Na 1.049 1.040 K 1.014 0.983 Rb 0.977 0.909 Cs 0.983 0.872 55 13...

Note: This page contains sample records for the topic "larson garnet alkali" 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

Transport of Alkali Halides through a Liquid Organic Membrane Containing a Ditopic Salt-Binding Receptor  

E-Print Network [OSTI]

in the solid state as contact ion pairs. Transport experiments, using a supported liquid membrane and high saltTransport of Alkali Halides through a Liquid Organic Membrane Containing a Ditopic Salt and anion receptors. All transport systems exhibit the same qualitative order of ion selectivity; that is

Smith, Bradley D.

142

Oxygen production by molten alkali metal salts using multiple absorption-desorption cycles  

DOE Patents [OSTI]

A continuous chemical air separation is performed wherein oxygen is recovered with a molten alkali metal salt oxygen acceptor in a series of absorption zones which are connected to a plurality of desorption zones operated in separate parallel cycles with the absorption zones. A greater recovery of high pressure oxygen is achieved at reduced power requirements and capital costs.

Cassano, Anthony A. (Allentown, PA)

1985-01-01T23:59:59.000Z

143

Method for inhibiting alkali metal corrosion of nickel-containing alloys  

DOE Patents [OSTI]

Structural components of nickel-containing alloys within molten alkali metal systems are protected against corrosion during the course of service by dissolving therein sufficient aluminum, silicon, or manganese to cause the formation and maintenance of a corrosion-resistant intermetallic reaction layer created by the interaction of the molten metal, selected metal, and alloy.

DeVan, Jackson H. (Oak Ridge, TN); Selle, James E. (Westminster, CO)

1983-01-01T23:59:59.000Z

144

Secondary cell with orthorhombic alkali metal/manganese oxide phase active cathode material  

DOE Patents [OSTI]

An alkali metal manganese oxide secondary cell is disclosed which can provide a high rate of discharge, good cycling capabilities, good stability of the cathode material, high specific energy (energy per unit of weight) and high energy density (energy per unit volume). The active material in the anode is an alkali metal and the active material in the cathode comprises an orthorhombic alkali metal manganese oxide which undergoes intercalation and deintercalation without a change in phase, resulting in a substantially linear change in voltage with change in the state of charge of the cell. The active material in the cathode is an orthorhombic structure having the formula M{sub x}Z{sub y}Mn{sub (1{minus}y)}O{sub 2}, where M is an alkali metal; Z is a metal capable of substituting for manganese in the orthorhombic structure such as iron, cobalt or titanium; x ranges from about 0.2 in the fully charged state to about 0.75 in the fully discharged state, and y ranges from 0 to 60 atomic %. Preferably, the cell is constructed with a solid electrolyte, but a liquid or gelatinous electrolyte may also be used in the cell. 11 figs.

Doeff, M.M.; Peng, M.Y.; Ma, Y.; Visco, S.J.; DeJonghe, L.C.

1996-09-24T23:59:59.000Z

145

Microbial reverse-electrodialysis chemical-production cell for acid and alkali production  

E-Print Network [OSTI]

Microbial reverse-electrodialysis chemical-production cell for acid and alkali production Xiuping Accepted 7 March 2013 Available online 15 March 2013 Keywords: Microbial fuel cell Reverse electrodialysis Bioenergy A new type of bioelectrochemical system, called a microbial reverse-electrodialysis chemical

146

Hybrid Optical Pumping of Optically Dense Alkali-Metal Vapor without Quenching Gas M. V. Romalis  

E-Print Network [OSTI]

Hybrid Optical Pumping of Optically Dense Alkali-Metal Vapor without Quenching Gas M. V. Romalis; published 7 December 2010) Optical pumping of an optically thick atomic vapor typically requires a quenching the atoms. We show that optical pumping of a trace contamination of Rb present in K metal results in a 4

Romalis, Mike

147

Gas phase spectroscopy of alkali carbides: The pure rotational spectrum of KC ,,X 4  

E-Print Network [OSTI]

observation of potassium carbide, and of any alkali metal carbide species. The molecule was produced under d, and possible ways to better activate C­C and C­H bonds.1 Investigating metal carbide species also can lead- faces. Finally, it has recently been suggested that adding metal carbides to H2 may provide high energy

Ziurys, Lucy M.

148

A computational linear elastic fracture mechanics-based model for alkali-silica reaction  

E-Print Network [OSTI]

with the case of a concrete made up of dense aggregates submitted to chemical attack. The chemistry condi- tions are required: high water content, high alkali concentration and reactive ag- gregates first fill the available porous space, and then tend to create microcracks which are thought to play

Paris-Sud XI, Université de

149

Alignment of molecules in gaseous transport: Alkali dimers in supersonic nozzle beams  

E-Print Network [OSTI]

Alignment of molecules in gaseous transport: Alkali dimers in supersonic nozzle beams M. P. SinhaO) + a.P lcosO), where 0 is the angle between the angular momentum vector J of the molecule and the beam direction. This method is applied to determine the alignment of Na2 molecules in a supersonic nozzle beam

Zare, Richard N.

150

He polarization-dependent EPR frequency shifts of alkali-metal3 Earl Babcock,1  

E-Print Network [OSTI]

3 He polarization-dependent EPR frequency shifts of alkali-metal­3 He pairs Earl Babcock,1 Ian A-dependent measurements of the EPR frequency shifts for Na, K, and Rb interacting with polarized 3 He. K and Na frequency also allowed us to extend the measured temperature dependence of the Rb EPR frequency shifts up to 350

Walker, Thad G.

151

Oxygen production by molten alkali metal salts using multiple absorption-desorption cycles  

DOE Patents [OSTI]

A continuous chemical air separation is performed wherein oxygen is recovered with a molten alkali metal salt oxygen acceptor in a series of absorption zones which are connected to a plurality of desorption zones operated in separate parallel cycles with the absorption zones. A greater recovery of high pressure oxygen is achieved at reduced power requirements and capital costs. 3 figs.

Cassano, A.A.

1985-07-02T23:59:59.000Z

152

Pulsed laser deposition of epitaxial yttrium iron garnet films with low Gilbert damping and bulk-like magnetization  

SciTech Connect (OSTI)

Yttrium iron garnet (YIG, Y {sub 3}Fe{sub 5}O{sub 12}) films have been epitaxially grown on Gadolinium Gallium Garnet (GGG, Gd{sub 3}Ga{sub 5}O{sub 12}) substrates with (100) orientation using pulsed laser deposition. The films were single-phase, epitaxial with the GGG substrate, and the root-mean-square surface roughness varied between 0.14 nm and 0.2 nm. Films with thicknesses ranging from 17 to 200 nm exhibited low coercivity (<2 Oe), near-bulk room temperature saturation moments (?135 emu cm{sup ?3}), in-plane easy axis, and damping parameters as low as 2.2 10{sup ?4}. These high quality YIG thin films are useful in the investigation of the origins of novel magnetic phenomena and magnetization dynamics.

Onbasli, M. C., E-mail: onbasli@mit.edu; Kim, D. H.; Ross, C. A. [Department of Materials Science and Engineering, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139 (United States); Kehlberger, A. [Institute of Physics, Johannes Gutenberg-University of Mainz, 55099 Mainz (Germany); Graduate School Materials Science in Mainz, Staudinger Weg 9, 55128 Mainz (Germany); Jakob, G.; Klui, M. [Institute of Physics, Johannes Gutenberg-University of Mainz, 55099 Mainz (Germany); Chumak, A. V.; Hillebrands, B. [Fachbereich Physik and Landesforschungszentrum, OPTIMAS, Technische Universitt Kaiserslautern, 67663 Kaiserslautern (Germany)

2014-10-01T23:59:59.000Z

153

Tuning magnetic properties of yttrium iron garnet film with oxygen partial pressure in sputtering and annealing process  

SciTech Connect (OSTI)

In this paper, the magnetic properties of these films which deposited and annealed at different atmospheres were investigated. The experimental results show that the magnetic properties of yttrium iron garnet films prepared by rf magnetron sputtering method can be tuned with oxygen partial pressure in sputtering and annealing processes. The optimal condition is depositing in atmosphere of R=0 and annealing at 0.5 Pa O{sub 2}, or depositing in atmosphere of R=2% and annealed in vacuum.

Yang Qinghui; Zhang Huaiwu; Wen Qiye; Liu Yingli [State Key Laboratory of Electronic Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054 (China); Xiao, John Q. [Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716 (United States)

2009-04-01T23:59:59.000Z

154

Crystal structure and electron microprobe analyses of a lanthanum lutetium gallium garnet  

SciTech Connect (OSTI)

Single-crystal electron microprobe analysis of a lanthanum lutetium gallium garnet has resulted in a composition of La{sub 2.37}Nd{sub 0.07}Pb{sub 0.01}Lu{sub 2.54}Cr{sub 0.01} Ga{sub 3.00}O{sub 12}. This composition gives better agreement between observed and calculated total dielectric polarizabilities than previously reported compositions (La{sub 2.26--2.32}Nd{sub 0.04}Lu{sub 2.57--2.63}Ga{sub 3.07}O{sub 12} by x-ray fluorescence and La{sub 2.655}Nd{sub 0.027}Lu{sub 2.656}Ga{sub 2.655}O{sub 12} by inductively coupled plasma analyses), and does not imply the crystal-chemically improbable presence of Lu{sup 3+} in the tetrahedral site. X-ray and neutron crystal-structure analyses have confirmed that little or no Lu resides in this site.

Parise, J.B.; Harlow, R.L.; Shannon, R.D. (Central Research and Development Department, E. I. DuPont De Nemours and Co., Experimental Station, Wilmington, Delaware 19880-0228 (United States)); Kwei, G.H. (LANSCE, MS-H805, Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)); Allik, T.H. (Science Applications International Corporation, 1710 Goodridge Dr., P.O. Box 1303, McLean, Virginia 22102 (United States)); Armstrong, J.T. (Department of Geological and Planetary Sciences, California Institute of Technology, Pasadena, California 91125 (United States))

1992-09-15T23:59:59.000Z

155

Technical report for the alkali lake ecological assessment, phase 1 reconnaissance (FY 91 and FY 92)  

SciTech Connect (OSTI)

The report summarizes the results of three field survey trips (June and September 1991, May 1992) taken to investigate the ecological effects associated with the release of over a million gallons of hazardous waste from herbicide production on the Alkali Lake playa. Sampling of soil, sediment, groundwater, soil-dwelling invertebrates and vegetation confirmed that hazardous materials from the waste disposal area are migrating westerly within the shallow aquifer to West Alkali Lake. Two areas of dead vegetation were identified and permanently marked to determine if these areas are changing in size and location. Preliminary calculations using a linear food-chain model suggested that small mammalian herbivores would probably not display adverse effects due to dietary exposures to the contaminants. However, nestling shorebirds may be exposed to concentrations potentially associated with adverse biological effects.

Linder, G.

1993-03-01T23:59:59.000Z

156

On the Electron Paramagnetic Resonance Studies in Mixed Alkali Borate Glasses  

SciTech Connect (OSTI)

Mixed alkali effect in oxide based glasses is one of the current research activity and studies on the behavior of spectroscopic parameters in these systems are quite important to understand the basic nature of this phenomenon. EPR studies of mixed alkali glasses Li{sub 2}O-K{sub 2}O-ZnO-B{sub 2}O{sub 3} doped with Fe{sup 3+} and Mn{sup 2+} were carried out at room temperature. The EPR spectra show typical resonances of d{sup 5} system (Fe{sup 3+} and Mn{sup 2+}) in all the measured glass specimens. Evaluated hyperfine constant, number of paramagnetic centers and paramagnetic susceptibility values show deviation from the linearity with the progressive substitution of the Li ion with K in glass network.

Padmaja, G. [Department of Physics, Kakatiya University, Warangal 506009 (India); Reddy, T. Goverdhan [Graphene Research Institute and Department of Physics, Sejong University, Seoul 143-747 (Korea, Republic of); Kistaiah, P. [Department of Physics, Osmania University, Hyderabad 500 007 (India)

2011-10-20T23:59:59.000Z

157

Post-Harvest Processing Methods for Reduction of Silica and Alkali Metals in Wheat Straw  

SciTech Connect (OSTI)

Silica and alkali metals in wheat straw limit its use for bioenergy and gasification. Slag deposits occur via the eutectic melting of SiO2 with K2O, trapping chlorides at surfaces and causing corrosion. A minimum melting point of 950C is desirable, corresponding to SiO2:K2O of about 3:1. Mild chemical treatments were used to reduce Si, K, and Cl, while varying temperature, concentration, %-solids, and time. Dilute acid was more effective at removing K and Cl, while dilute alkali was more effective for Si. Reduction of minerals in this manner may prove economical for increasing utilization of the straw for combustion or gasification.

Thompson, David Neal; Lacey, Jeffrey Alan; Shaw, Peter Gordon

2002-04-01T23:59:59.000Z

158

Alkali or alkaline earth metal promoted catalyst and a process for methanol synthesis using alkali or alkaline earth metals as promoters  

DOE Patents [OSTI]

The present invention relates to a novel route for the synthesis of methanol, and more specifically to the production of methanol by contacting synthesis gas under relatively mild conditions in a slurry phase with a heterogeneous catalyst comprising reduced copper chromite impregnated with an alkali or alkaline earth metal. There is thus no need to add a separate alkali or alkaline earth compound. The present invention allows the synthesis of methanol to occur in the temperature range of approximately 100.degree.-160.degree. C. and the pressure range of 40-65 atm. The process produces methanol with up to 90% syngas conversion per pass and up to 95% methanol selectivity. The only major by-product is a small amount of easily separated methyl formate. Very small amounts of water, carbon dioxide and dimethyl ether are also produced. The present catalyst combination also is capable of tolerating fluctuations in the H.sub.2 /CO ratio without major deleterious effect on the reaction rate. Furthermore, carbon dioxide and water are also tolerated without substantial catalyst deactivation.

Tierney, John W. (Pittsburgh, PA); Wender, Irving (Pittsburgh, PA); Palekar, Vishwesh M. (Pittsburgh, PA)

1995-01-01T23:59:59.000Z

159

Alkali or alkaline earth metal promoted catalyst and a process for methanol synthesis using alkali or alkaline earth metals as promoters  

DOE Patents [OSTI]

The present invention relates to a novel route for the synthesis of methanol, and more specifically to the production of methanol by contacting synthesis gas under relatively mild conditions in a slurry phase with a heterogeneous catalyst comprising reduced copper chromite impregnated with an alkali or alkaline earth metal. There is thus no need to add a separate alkali or alkaline earth compound. The present invention allows the synthesis of methanol to occur in the temperature range of approximately 100--160 C and the pressure range of 40--65 atm. The process produces methanol with up to 90% syngas conversion per pass and up to 95% methanol selectivity. The only major by-product is a small amount of easily separated methyl formate. Very small amounts of water, carbon dioxide and dimethyl ether are also produced. The present catalyst combination also is capable of tolerating fluctuations in the H[sub 2]/CO ratio without major deleterious effect on the reaction rate. Furthermore, carbon dioxide and water are also tolerated without substantial catalyst deactivation.

Tierney, J.W.; Wender, I.; Palekar, V.M.

1995-01-31T23:59:59.000Z

160

Gel nanostructure in alkali-activated binders based on slag and fly ash, and effects of accelerated carbonation  

SciTech Connect (OSTI)

Binders formed through alkali-activation of slags and fly ashes, including fly ash geopolymers, provide appealing properties as binders for low-emissions concrete production. However, the changes in pH and pore solution chemistry induced during accelerated carbonation testing provide unrealistically low predictions of in-service carbonation resistance. The aluminosilicate gel remaining in an alkali-activated slag system after accelerated carbonation is highly polymerised, consistent with a decalcification mechanism, while fly ash-based binders mainly carbonate through precipitation of alkali salts (bicarbonates at elevated CO{sub 2} concentrations, or carbonates under natural exposure) from the pore solution, with little change in the binder gel identifiable by nuclear magnetic resonance spectroscopy. In activated fly ash/slag blends, two distinct gels (CASH and NASH) are formed; under accelerated carbonation, the NASH gel behaves comparably to fly ash-based systems, while the CASH gel is decalcified similarly to alkali-activated slag. This provides new scope for durability optimisation, and for developing appropriate testing methodologies. -- Highlights: C-A-S-H gel in alkali-activated slag decalcifies during accelerated carbonation. Alkali-activated fly ash gel changes much less under CO{sub 2} exposure. Blended slag-fly ash binder contains two coexisting gel types. These two gels respond differently to carbonation. Understanding of carbonation mechanisms is essential in developing test methods.

Bernal, Susan A., E-mail: s.bernal@sheffield.ac.uk [Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria 3010 (Australia); Department of Materials Science and Engineering, The University of Sheffield, Sheffield S1 3JD (United Kingdom); Provis, John L., E-mail: j.provis@sheffield.ac.uk [Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria 3010 (Australia); Department of Materials Science and Engineering, The University of Sheffield, Sheffield S1 3JD (United Kingdom); Walkley, Brant; San Nicolas, Rackel [Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria 3010 (Australia)] [Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria 3010 (Australia); Gehman, John D. [School of Chemistry and Bio21 Institute, The University of Melbourne, Victoria 3010 (Australia)] [School of Chemistry and Bio21 Institute, The University of Melbourne, Victoria 3010 (Australia); Brice, David G.; Kilcullen, Adam R. [Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria 3010 (Australia) [Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria 3010 (Australia); Zeobond Pty Ltd, P.O. Box 23450, Docklands, Victoria 8012 (Australia); Duxson, Peter [Zeobond Pty Ltd, P.O. Box 23450, Docklands, Victoria 8012 (Australia)] [Zeobond Pty Ltd, P.O. Box 23450, Docklands, Victoria 8012 (Australia); Deventer, Jannie S.J. van [Department of Chemical and Biomolecular Engineering, The University of Melbourne, Victoria 3010 (Australia); Zeobond Pty Ltd, P.O. Box 23450, Docklands, Victoria 8012 (Australia)

2013-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "larson garnet alkali" 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

Effects from Alkali-Silica Reacton and Delayed Ettringite Formation on Reinforced Concrete Column Lap Splices  

E-Print Network [OSTI]

EFFECTS FROM ALKALI-SILICA REACTION AND DELAYED ETTRINGITE FORMATION ON REINFORCED CONCRETE COLUMN LAP SPLICES A Thesis by MARY KATHLEEN ECK Submitted to the Office of Graduate Studies of Texas A&M University in partial... by MARY KATHLEEN ECK Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Approved by: Chair of Committee, Joseph M. Bracci Committee Members...

Eck, Mary

2012-07-16T23:59:59.000Z

162

Structural Assessment of D-Regions Affected by Alkali-Silica Reaction/Delayed Ettringite Formation  

E-Print Network [OSTI]

STRUCTURAL ASSESSMENT OF D-REGIONS AFFECTED BY ALKALI- SILICA REACTION/DELAYED ETTRINGITE FORMATION A Dissertation by SHIH-HSIANG LIU Submitted to the Office of Graduate Studies of Texas A&M University in partial fulfillment... of the requirements for the degree of DOCTOR OF PHILOSOPHY Approved by: Chair of Committee, Joseph M. Bracci Committee Members, John B. Mander Stefan Hurlebaus Harry A. Hogan Head of Department, John M. Niedzwecki December 2012 Major Subject: Civil...

Liu, Shih-Hsiang 1979-

2012-11-12T23:59:59.000Z

163

An antidot array as an edge for total non-reflection of spin waves in yttrium iron garnet films  

SciTech Connect (OSTI)

An array of antidots has been used as an edge to create the phenomenon of total non-reflection of spin waves in yttrium iron garnet films. At the critical angle between the line of antidots and the magnetic field, we observe a high-intensity beam of spin waves moving along the line of antidots. The properties of these waves are investigated experimentally by Brillouin light scattering spectroscopy. The conditions required for the occurrence of this phenomenon based on an analysis of the properties of the isofrequency dependencies are presented. The numerical simulations are in good agreement with those of the experimental measurements.

Gieniusz, R., E-mail: gieniusz@uwb.edu.pl; Guzowska, U.; Maziewski, A. [Faculty of Physics, University of Bia?ystok, Lipowa 41, 15-424 Bia?ystok (Poland); Bessonov, V. D. [Faculty of Physics, University of Bia?ystok, Lipowa 41, 15-424 Bia?ystok (Poland); Institute of Metal Physics, Ural Division of RAS, Yekaterinburg 620041 (Russian Federation); Stognii, A. I. [Scientific-Practical Materials Research Center at National Academy of Sciences of Belarus, ul. P. Brovki 19, Minsk 220072 (Belarus)

2014-02-24T23:59:59.000Z

164

Determination of the concentration of conduction electrons in Y{sub 3}Fe{sub 5}O{sub 12} garnet crystals  

SciTech Connect (OSTI)

Ferrites (garnets) are a model object of study and a promising material to be used in magneto-optical devices for data recording and processing and IR modulators. Due to the narrow ferromagnetic resonance line, optical transparency, and high elastic Q factor of ferrite single crystals, they are promising for solid-state microwave, optoelectronic, and computation devices. To ensure the optimal application of ferromagnetic materials, it is necessary to complete the following important task: develop a certification for samples with allowance for the degree of their imperfection caused by the deviation of crystals with garnet structure from stoichiometry, the competitive incorporation of process and dominant impurities, oxygen vacancies, etc.

Lomako, I. D., E-mail: lomako@ifttp.bas-net.by [National Academy of Sciences of Belarus, Scientific and Practical Materials Research Center (Belarus)

2013-07-15T23:59:59.000Z

165

Rapid Microwave Preparation of Highly Efficient Ce[superscript 3+]-Substituted Garnet Phosphors for Solid State White Lighting  

SciTech Connect (OSTI)

Ce{sup 3+}-substituted aluminum garnet compounds of yttrium (Y{sub 3}Al{sub 5}O{sub 12}) and lutetium (Lu{sub 3}Al{sub 5}O{sub 12}) - both important compounds in the generation of (In,Ga)N-based solid state white lighting - have been prepared using a simple microwave heating technique involving the use of a microwave susceptor to provide the initial heat source. Carbon used as the susceptor additionally creates a reducing atmosphere around the sample that helps stabilize the desired luminescent compound. High quality, phase-pure materials are prepared within a fraction of the time and using a fraction of the energy required in a conventional ceramic preparation; the microwave technique allows for a reduction of about 95% in preparation time, making it possible to obtain phase pure, Ce{sup 3+}-substituted garnet compounds in under 20 min of reaction time. It is estimated that the overall reduction in energy compared with ceramic routes as practiced in the lab is close to 99%. Conventionally prepared material is compared with material prepared using microwave heating in terms of structure, morphology, and optical properties, including quantum yield and thermal quenching of luminescence. Finally, the microwave-prepared compounds have been incorporated into light-emitting diode 'caps' to test their performance characteristics in a real device, in terms of their photon efficiency and color coordinates.

Birkel, Alexander; Denault, Kristin A.; George, Nathan C.; Doll, Courtney E.; Hry, Bathylle; Mikhailovsky, Alexander A.; Birkel, Christina S.; Hong, Byung-Chul; Seshadri, Ram (UCSB); (Mitsubishi)

2012-04-30T23:59:59.000Z

166

Effect of silicate modulus and metakaolin incorporation on the carbonation of alkali silicate-activated slags  

SciTech Connect (OSTI)

Accelerated carbonation is induced in pastes and mortars produced from alkali silicate-activated granulated blast furnace slag (GBFS)-metakaolin (MK) blends, by exposure to CO{sub 2}-rich gas atmospheres. Uncarbonated specimens show compressive strengths of up to 63 MPa after 28 days of curing when GBFS is used as the sole binder, and this decreases by 40-50% upon complete carbonation. The final strength of carbonated samples is largely independent of the extent of metakaolin incorporation up to 20%. Increasing the metakaolin content of the binder leads to a reduction in mechanical strength, more rapid carbonation, and an increase in capillary sorptivity. A higher susceptibility to carbonation is identified when activation is carried out with a lower solution modulus (SiO{sub 2}/Na{sub 2}O ratio) in metakaolin-free samples, but this trend is reversed when metakaolin is added due to the formation of secondary aluminosilicate phases. High-energy synchrotron X-ray diffractometry of uncarbonated paste samples shows that the main reaction products in alkali-activated GBFS/MK blends are C-S-H gels, and aluminosilicates with a zeolitic (gismondine) structure. The main crystalline carbonation products are calcite in all samples and trona only in samples containing no metakaolin, with carbonation taking place in the C-S-H gels of all samples, and involving the free Na{sup +} present in the pore solution of the metakaolin-free samples. Samples containing metakaolin do not appear to have the same availability of Na{sup +} for carbonation, indicating that this is more effectively bound in the presence of a secondary aluminosilicate gel phase. It is clear that claims of exceptional carbonation resistance in alkali-activated binders are not universally true, but by developing a fuller mechanistic understanding of this process, it will certainly be possible to improve performance in this area.

Bernal, Susan A., E-mail: susana.bernal@gmail.co [Materials Engineering Department, Composite Materials Group, CENM, Universidad del Valle, Cali (Colombia); Mejia de Gutierrez, Ruby [Materials Engineering Department, Composite Materials Group, CENM, Universidad del Valle, Cali (Colombia); Provis, John L., E-mail: jprovis@unimelb.edu.a [Department of Chemical and Biomolecular Engineering, University of Melbourne, Victoria 3010 (Australia); Rose, Volker [Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

2010-06-15T23:59:59.000Z

167

An alternative model for ultra-high pressure in the Svartberget Fe-Ti garnet-peridotite, Western Gneiss Region, Norway  

E-Print Network [OSTI]

Gneiss Region, Norway JOHANNES C. VRIJMOED1,*, YURI Y. PODLADCHIKOV1 , TORGEIR B. ANDERSEN1 and EBBE H, Norway *Corresponding author, e-mail: j.c.vrijmoed@fys.uio.no 2 Aker Exploration AS, PO Box 580, Sentrum, 4003 Stavanger, Norway Abstract: The previously reported ``Fe-Ti type'' garnet-peridotite is located

Andersen, Torgeir Bjørge

168

Combined thermodynamic and rare earth element modelling of garnet growth during subduction: Examples from ultrahigh-pressure eclogite of the Western Gneiss  

E-Print Network [OSTI]

Combined thermodynamic and rare earth element modelling of garnet growth during subduction and preserve complex growth zonation patterns with respect to both major and rare earth elements (REE). Due at ultrahigh-pressure conditions. Mass-balance of the rare earth element distribution among the modelled stable

Zack, Thomas

169

DuraLith Alkali-Aluminosilicate Geopolymer Waste Form Testing for Hanford Secondary Waste  

SciTech Connect (OSTI)

The primary objective of the work reported here was to develop additional information regarding the DuraLith alkali aluminosilicate geopolymer as a waste form for liquid secondary waste to support selection of a final waste form for the Hanford Tank Waste Treatment and Immobilization Plant secondary liquid wastes to be disposed in the Integrated Disposal Facility on the Hanford Site. Testing focused on optimizing waste loading, improving waste form performance, and evaluating the robustness of the waste form with respect to waste variability.

Gong, W. L.; Lutz, Werner; Pegg, Ian L.

2011-07-21T23:59:59.000Z

170

An investigation of the transfer of alkali metal chlorides from dimethyl sulfoxide to water  

E-Print Network [OSTI]

-to-back' with water as the solvent in one cell and a non- aqueous solvent in the other. The two cells used in this investigation were each composed of silver-silver chloride electrodes in the same solution with dropping alkali metal amalgam electrodes. The solute.... The dropping amalgam electrodes are written only once since they were connected by a common amalgam reservoir. When the external circuit between the two silver-silver chloride electrodes was closed a current flowed and the net result oi the electrode...

Williams, Roger

1966-01-01T23:59:59.000Z

171

2-M Probe At Gabbs Alkali Flat Area (Kratt, Et Al., 2008) | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of Inspector GeneralDepartmentAUDIT REPORTOpenWende NewSowitec doWinvest HomeInformation Gabbs Alkali Flat

172

Coordination effect-regulated CO2 capture with an alkali metal onium salts/crown ether system  

SciTech Connect (OSTI)

A coordination effect was employed to realize equimolar CO2 absorption, adopting easily synthesized amino group containing absorbents (alkali metal onium salts). The essence of our strategy was to increase the steric hindrance of cations so as to enhance a carbamic acid pathway for CO2 capture. Our easily synthesized alkali metal amino acid salts or phenolates were coordinated with crown ethers, in which highly sterically hindered cations were obtained through a strong coordination effect of crown ethers with alkali metal cations. For example, a CO2 capacity of 0.99 was attained by potassium prolinate/18-crown-6, being characterized by NMR, FT-IR, and quantum chemistry calculations to go through a carbamic acid formation pathway. The captured CO2 can be stripped under very mild conditions (50 degrees C, N-2). Thus, this protocol offers an alternative for the development of technological innovation towards efficient and low energy processes for carbon capture and sequestration.

Yang, Zhen-Zhen [Nankai University China] [Nankai University China; Jiang, Deen [ORNL] [ORNL; Zhu, Xiang [ORNL] [ORNL; Tian, Chengcheng [ORNL] [ORNL; Brown, Suree [ORNL] [ORNL; Do-Thanh, Chi-Linh [The University of Tennessee] [The University of Tennessee; He, Liang-Nian [Nankai University China] [Nankai University China; Dai, Sheng [ORNL] [ORNL

2014-01-01T23:59:59.000Z

173

THE JOURNAL OF CHEMICAL PHYSICS VOLUME 58, NUMBER 2 15 JANUARY 1973 Internal state distribution of alkali dimers in supersonic nozzle beams*  

E-Print Network [OSTI]

of alkali dimers in supersonic nozzle beams* M. P. Sinha, A. Schultzt, and R. N. Zare Department o the white light and laser-induced fluorescence excited in a nozzle beam of Na2 molecules, we have measured beams with various stagnation pressures (50-240 torr) of alkali metal and with nozzles of different

Zare, Richard N.

174

Optically pumped alkali laser and amplifier using helium-3 buffer gas  

DOE Patents [OSTI]

In one embodiment, a laser oscillator is provided comprising an optical cavity, the optical cavity including a gain medium including an alkali vapor and a buffer gas, the buffer gas including .sup.3He gas, wherein if .sup.4He gas is also present in the buffer gas, the ratio of the concentration of the .sup.3He gas to the .sup.4He gas is greater than 1.37.times.10.sup.-6. Additionally, an optical excitation source is provided. Furthermore, the laser oscillator is capable of outputting radiation at a first frequency. In another embodiment, an apparatus is provided comprising a gain medium including an alkali vapor and a buffer gas including .sup.3He gas, wherein if .sup.4He gas is also present in the buffer gas, the ratio of the concentration of the .sup.3He gas to the .sup.4He gas is greater than 1.37.times.10.sup.-6. Other embodiments are also disclosed.

Beach, Raymond J. (Livermore, CA); Page, Ralph (Castro Valley, CA); Soules, Thomas (Livermore, CA); Stappaerts, Eddy (San Ramon, CA); Wu, Sheldon Shao Quan (Livermore, CA)

2010-09-28T23:59:59.000Z

175

Dual alkali approaches for the capture and separation of CO{sub 2}  

SciTech Connect (OSTI)

The Solvay process utilizes two alkalis in sequential order to convert CO{sub 2} to sodium carbonate for commercial use. The ability to transform CO{sub 2} into sodium carbonate cost-effectively would be a breakthrough in CO{sub 2} sequestration by providing benign long-term storage of CO{sub 2}. However, the Solvay process was not designed for CO{sub 2} sequestration and is not practical for use in the sequestration of CO{sub 2} from fossil fuel power plants. This paper investigates methods to modify the process in order to make it effective for the control of power plant CO{sub 2} emissions. The new modified process, called the Dual Alkali Approach, attempts to replace either or both bases, ammonia and lime, in the Solvay process with other compounds to make CO{sub 2} capture and separation efficient. Ammonia was replaced with different amines in aqueous solutions of salts and it was found that bicarbonate precipitation did occur. A method to regenerate the amine in the second step has not been implemented. However, the second step in Solvay Process has been implemented without using lime, namely, ammonia has been regenerated from an ammonium chloride solution using activated carbon. The HCl adsorbed in the activated carbon was removed by water to regenerate the activated carbon.

Huang, H.P.; Shi, Y.; Li, W.; Chang, S.G.

2000-04-04T23:59:59.000Z

176

Origin of alkali-feldspar granites: An example from the Poimena Granite, northeastern Tasmania, Australia  

SciTech Connect (OSTI)

The Lottah Granite is a composite pluton of tin mineralized strongly peraluminous alkali-feldspar granite which intrudes the Poimena Granite, a major component of the mid-Devonian Blue Tier Batholith of northeastern Tasmania. Earlier workers interpreted the Lottah Granite as a metasomatised differentiate of the Poimena Granite. The Poimena Granite is a slightly peraluminous, felsic, I-type biotite granite which contains restite minerals and shows linear trends on Harker plots, both consistent with restite separation. The mineralogy, chemical variation, and isotopic characteristics of the Lottah Granite are consistent with origin as a magma genetically unrelated to the host granite. The Lottah Granite contains sanidine, albite, topaz, zinnwaldite and other minerals consistent with crystallization from a melt. Furthermore, Rb-Sr isotopic dating indicates that the Lottah Granite was emplaced about 10 Ma after the Poimena Granite, and initial Sr and Nd isotope ratios indicate that the Lottah Granite was derived from a higher-{sup 87}Sr/{sup 86}Sr, higher-{epsilon}Nd source composition. Chemical and mineralogical evolution of the Lottah Granite conform to the experimental behavior of Li-F-rich melts, and indicate a possible crystallization temperature range as extreme as 750-430{degree}C. Many other examples of alkali-feldspar granite, and much of the associated mineralization, are probably also of essentially primary magmatic origin rather than of metasomatic or hydrothermal origin as commonly interpreted. They may also be genetically unrelated to granites with which they are associated.

Mackenzie, D.E.; Black, L.P.; Sun, Shensu (Bureau of Mineral Resources, Canberra (Australia))

1988-10-01T23:59:59.000Z

177

Planning and Implementation of an Alkali-Surfactant-Polymer (ASP) Field Project  

SciTech Connect (OSTI)

The Warden ASP project has progressed from the initial planning stage to construction of an injection plant. An ASP chemical system was designed based on laboratory evaluations that included interfacial tension, mobility requirements, rock-alkali interaction, fluid capabilities, and core tests. Field cores were obtained from the Permian No. 5 and No. 6 sands on the Warden lease in Sho-Vel-Tum oil field. A separate tank battery for the pilot pattern area was installed, and a field tracer test is currently being evaluated. Tracer test results to date indicate that there is no major fracturing in the No. 5 sand. There is indication, however, of some channeling through high permeability sand. The field injection plant was designed, and construction is in progress. Several variations of injection plant design have been evaluated. Some plant design details, such as alkali storage, were found to be dependent on the availability of use equipment and project budget. The surfactant storage facility design was shown to be dependent on surfactant rheology.

French, T.

1999-03-05T23:59:59.000Z

178

3718-F Alkali Metal Treatment and Storage Facility Closure Plan. Revision 1  

SciTech Connect (OSTI)

The Hanford Site, located northwest of the city of Richland, Washington, houses reactors, chemical-separation systems, and related facilities used for the production of special nuclear materials, as well as for activities associated with nuclear energy development. The 300 Area of the Hanford Site contains reactor fuel manufacturing facilities and several research and development laboratories. The 3718-F Alkali Metal Treatment and Storage Facility (3718-F Facility), located in the 300 Area, was used to store and treat alkali metal wastes. Therefore, it is subject to the regulatory requirements for the storage and treatment of dangerous wastes. Closure will be conducted pursuant to the requirements of the Washington Administrative Code (WAC) 173-303-610 (Ecology 1989) and 40 CFR 270.1. Closure also will satisfy the thermal treatment facility closure requirements of 40 CFR 265.381. This closure plan presents a description of the 3718-F Facility, the history of wastes managed, and the approach that will be followed to close the facility. Only hazardous constituents derived from 3718-F Facility operations will be addressed.

none,

1992-11-01T23:59:59.000Z

179

Hydration of a low-alkali CEM III/B-SiO{sub 2} cement (LAC)  

SciTech Connect (OSTI)

The hydration of a low-alkali cement based on CEM III/B blended with 10 wt.% of nanosilica has been studied. The nanosilica reacted within the first days and 90% of the slag reacted within 3.5 years. C-S-H (Ca/Si {approx} 1.2, Al/Si {approx} 0.12), calcite, hydrotalcite, ettringite and possibly straetlingite were the main hydrates. The pore water composition revealed ten times lower alkali concentrations than in Portland cements. Reducing conditions (HS{sup -}) and a pH value of 12.2 were observed. Between 1 month and 3.5 years of hydration more hydrates were formed due to the ongoing slag reaction but no significant differences in the composition of the pore solution or solid phase assemblage were observed. On the basis of thermodynamic calculations it is predicted that siliceous hydrogarnet could form in the long-term and, in the presence of siliceous hydrogarnet, also thaumasite. Nevertheless, even after 3.5 year hydration, neither siliceous hydrogarnet nor thaumasite have been observed.

Lothenbach, Barbara, E-mail: barbara.lothenbach@empa.ch [Empa, Laboratory for Concrete and Construction Chemistry, CH-8600 Duebendorf (Switzerland); Le Saout, Gwenn; Ben Haha, Mohsen; Figi, Renato [Empa, Laboratory for Concrete and Construction Chemistry, CH-8600 Duebendorf (Switzerland); Wieland, Erich [PSI, Laboratory for Waste Management, CH-5232 Villigen PSI (Switzerland)

2012-02-15T23:59:59.000Z

180

Raman Analysis of Perrhenate and Pertechnetate in Alkali Salts and Borosilicate Glasses  

SciTech Connect (OSTI)

Sodium borosilicate glasses containing various concentrations of rhenium or technetium were fabricated, and their vibrational spectra studied using a Raman microscope. Spectra were interpreted with reference to new high resolution measurements of alkali pertechnetates and perrhenates NaReO4, KReO4, NaTcO4, and KTcO4. At low concentrations of ReO4- or TcO4-, glass spectra show weak peaks superimposed on a dominant spectrum of glass characteristic of silicate and borate network vibrations. At high concentrations, sharp peaks characteristic of crystal field splitting and C4h symmetry dominate the spectra of glasses, indicating alkali nearby tetrahedral Re or Tc. Often peaks indicative of both the K and Na pertechnetates/ perrhenates are evident in the Raman spectrum, with the latter being favored at high additions of the source chemical, since Na is more prevalent in the glass and ion exchange takes place. These results have significance to immobilization of nuclear waste containing radioactive 99Tc in glass for ultimate disposal.

Gassman, Paul L.; McCloy, John S.; Soderquist, Chuck Z.; Schweiger, Michael J.

2014-01-03T23:59:59.000Z

Note: This page contains sample records for the topic "larson garnet alkali" 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

Dhanya Mary Abraham Reece Larson Adamson  

E-Print Network [OSTI]

James R Boivie John William Bojorquez Lindsey Elizabeth Bonitz Olivia Ann Bonner Dean's List Spring 2014 Curran Tapan Paresh Dalal Tara Lin D'Ambruoso Zachary James D'Amico David Clark Daniels Corey Danko Ian

Lozano-Robledo, Alvaro

182

Larson,Cheryl A * PS-6  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample6, 2011 CERN 73-11Large areaLargefor Dr. Lawrence

183

Tuning of the spin pumping in yttrium iron garnet/Au bilayer system by fast thermal treatment  

SciTech Connect (OSTI)

In this Letter, we investigated the influence of the fast thermal treatment on the spin pumping in ferromagnetic insulator yttrium iron garnet (YIG)/normal metal Au bilayer system. The YIG/Au bilayer thin films were treated by fast annealing process with different temperatures from 0 to 800?C. The spin pumping was studied using ferromagnetic resonance. The surface evolution was investigated using a high resolution scanning microscopy and an atomic force microscopy. A strong thermal related spin pumping in YIG/Au bilayer system has been revealed. It was found that the spin pumping process can be enhanced by using fast thermal treatment due to the thermal modifications of the Au surface. The effective spin-mixing conductance of the fast thermal treated YIG/Au bilayer has been obtained.

Jin, Lichuan, E-mail: lichuanj@udel.edu, E-mail: hwzhang@uestc.edu.cn; Zhang, Huaiwu, E-mail: lichuanj@udel.edu, E-mail: hwzhang@uestc.edu.cn; Yang, Qinghui; Tang, Xiaoli; Zhong, Zhiyong [State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology, Chengdu 610054 (China); Zhang, Dainan [Department of Electrical and Computer Engineering, University of Delaware, Newark, Delaware 19716 (United States); Xiao, John Q. [Department of Physics and Astronomy, University of Delaware, Newark, Delaware 19716 (United States)

2014-05-07T23:59:59.000Z

184

High pressure elastic properties of minerals from ab initio simulations: The case of pyrope, grossular and andradite silicate garnets  

SciTech Connect (OSTI)

A computational strategy is devised for the accurate ab initio simulation of elastic properties of crystalline materials under pressure. The proposed scheme, based on the evaluation of the analytical stress tensor and on the automated computation of pressure-dependent elastic stiffness constants, is implemented in the CRYSTAL solid state quantum-chemical program. Elastic constants and related properties (bulk, shear and Young moduli, directional seismic wave velocities, elastic anisotropy index, Poisson's ratio, etc.) can be computed for crystals of any space group of symmetry. We apply such a technique to the study of high-pressure elastic properties of three silicate garnet end-members (namely, pyrope, grossular, and andradite) which are of great geophysical interest, being among the most important rock-forming minerals. The reliability of this theoretical approach is proved by comparing with available experimental measurements. The description of high-pressure properties provided by several equations of state is also critically discussed.

Erba, A., E-mail: alessandro.erba@unito.it; Mahmoud, A.; Dovesi, R. [Dipartimento di Chimica and Centre of Excellence NIS (Nanostructured Interfaces and Surfaces), Universit di Torino, via Giuria 5, IT-10125 Torino (Italy)] [Dipartimento di Chimica and Centre of Excellence NIS (Nanostructured Interfaces and Surfaces), Universit di Torino, via Giuria 5, IT-10125 Torino (Italy); Belmonte, D. [DISTAV, Universit di Genova, Corso Europa 26, 16132 Genoa (Italy)] [DISTAV, Universit di Genova, Corso Europa 26, 16132 Genoa (Italy)

2014-03-28T23:59:59.000Z

185

Interactions of hydrogen with alkali promoted Ru/SiO{sub 2} catalysts: A proton NMR study  

SciTech Connect (OSTI)

Role of H spillover to the silica support was studied using chemisorption; a strongly bound component of spilled over H was found in the silica support which interfered with accurate measurements of active metal sites via volumetric strong H chemisorption. The volumetric chemisorption technique was modified so that measurement times were reduced from 12--36 h to 1 h. The active Ru surface was characterized means of changes in proton spin counts and NMR Knight shifts vs alkali loading. Na, K blocked the active surface of Ru metal, but Cs was pushed off by H chemisorption. The alkali promoters restricted H mobility on both metal surface and at the metal support interfaces; this is consistent with effects on Fischer-Tropsch synthesis. {sup 1}H NMR was used to study the effect of the active metal and promoter on support hydroxyl groups. The OH group density in the silica support decreased with metal and/or promoter loading, but not on a one-to-one basis; the exchange efficiency of the hydroxyls decreased with atomic size of the alkali metal. An additional downfield proton resonance was detected which was assigned to the alkali hydroxide species in the support.

Ozbay, U.D.

1994-05-10T23:59:59.000Z

186

The influence of high quantity of fly ash on reducing the expansion due to ASR in the presence of alkalis  

E-Print Network [OSTI]

A testing program was devised to study the role of high volume fly ash (HVFA) in reducing the expansion caused by alkali-silica reaction (ASR). A series of modified ASTM C 1260 tests were performed, where the replacement of cement by Class F fly ash...

Mohidekar, Saleel D.

2000-01-01T23:59:59.000Z

187

DOI: 10.1002/chem.200702012 Properties of Alkali Metal Atoms Deposited on a MgO Surface: A  

E-Print Network [OSTI]

, such as in tungsten bronzes, this may turn a wide-gap insulating oxide into a material with metallic conductivity, Na, K, Rb, and Cs) on the surface of MgO powders and thin films has been stud- ied by means of EPR. These reductions in the hfccs are due to polarization effects and are not connected to ionization of the alkali

Gao, Hongjun

188

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

189

Structural features of alkali and barium aluminofluorophosphate glasses studied by IR spectroscopy  

SciTech Connect (OSTI)

IR reflection spectra of the Al(PO{sub 3}){sub 3}-MeF{sub x} glasses (Me=Li, Na, K, Ba) with the maximum content of fluoride varied for each specific glass within certain concentration limits are considered. Analysis of the spectra for glasses obtained upon variation in the content of alkali metal fluoride introduced into these glasses has demonstrated that the increase in the MeF{sub x} content leads to breaking the chain groupings and forming the [PO{sub 3}F]{sup 2-} groups, whereas the rise in concentration of barium fluoride in the Al(PO{sub 3}){sub 3}-BaF{sub 2} glasses brings about the stabilization of the chain structures.

Urusovskaya, L.N.; Smirnova, E.V. [Research and Technological Institute of Optical Materials Science, State Scientific Center, St. Petersburg (Russian Federation)

1995-03-01T23:59:59.000Z

190

Carrier-wave Rabi flopping signatures in high-order harmonic generation for alkali atoms  

E-Print Network [OSTI]

We present the first theoretical investigation of carrier-wave Rabi flopping in real atoms by employing numerical simulations of high-order harmonic generation (HHG) in alkali species. Given the short HHG cutoff, related to the low saturation intensity, we concentrate on the features of the third harmonic of sodium (Na) and potassium (K) atoms. For pulse areas of 2$\\pi$ and Na atoms, a characteristic unique peak appears, which, after analyzing the ground state population, we correlate with the conventional Rabi flopping. On the other hand, for larger pulse areas, carrier-wave Rabi flopping occurs, and is associated with a more complex structure in the third harmonic. These new characteristics observed in K atoms indicate the breakdown of the area theorem, as was already demonstrated under similar circumstances in narrow band gap semiconductors.

Ciappina, M F; Landsman, A S; Zimmermann, T; Lewenstein, M; Roso, L; Krausz, F

2015-01-01T23:59:59.000Z

191

Methanol synthesis using a catalyst combination of alkali or alkaline earth salts and reduced copper chromite  

DOE Patents [OSTI]

The present invention relates to a novel route for the synthesis of methanol, and more specifically to the production of methanol by contacting synthesis gas under relatively mild conditions in a slurry phase with a catalyst combination comprising reduced copper chromite and basic alkali salts or alkaline earth salts. The present invention allows the synthesis of methanol to occur in the temperature range of approximately 100.degree.-160.degree. C. and the pressure range of 40-65 atm. The process produces methanol with up to 90% syngas conversion per pass and up to 95% methanol selectivity. The only major by-product is a small amount of easily separated methyl formate. Very small amounts of water, carbon dioxide and dimethyl ether are also produced. The present catalyst combination also is capable of tolerating fluctuations in the H.sub.2 /CO ratio without major deleterious effect on the reaction rate. Furthermore, carbon dioxide and water are also tolerated without substantial catalyst deactivation.

Tierney, John W. (Pittsburgh, PA); Wender, Irving (Pittsburgh, PA); Palekar, Vishwesh M. (Pittsburgh, PA)

1995-01-01T23:59:59.000Z

192

Diffusion and selective transport of alkali cations on cation-exchange membrane  

SciTech Connect (OSTI)

The diffusion coefficients and selective transport for alkali metal cations through a charged polysulfonated ICE-450 ion-exchange membrane were measured as a function of pH at 25{degrees}C. The permeability and diffusion coefficients were found to increase in the sequence Cs{sup +} {ge} K{sup +} {ge} Na{sup +} {ge} Li{sup +}. The relationship between the permeability and the diffusion coefficients, and the hydrated radii of cations in the membrane were shown. This sequence was also explained by considering the hydration of ions in the membrane. The selectivity transport of K-Na and K-Li binary systems at various pH gradients through the membrane were also investigated under various conditions. In the selective transport of metal ions, the selectivity depended on both the hydrated ionic size and the interaction between the fixed groups in the membrane and the metal ions.

Ersoez, M. [Selcuk Univ., Konya (Turkey)

1995-11-01T23:59:59.000Z

193

Methanol synthesis using a catalyst combination of alkali or alkaline earth salts and reduced copper chromite  

DOE Patents [OSTI]

The present invention relates to a novel route for the synthesis of methanol, and more specifically to the production of methanol by contacting synthesis gas under relatively mild conditions in a slurry phase with a catalyst combination comprising reduced copper chromite and basic alkali salts or alkaline earth salts. The present invention allows the synthesis of methanol to occur in the temperature range of approximately 100--160 C and the pressure range of 40--65 atm. The process produces methanol with up to 90% syngas conversion per pass and up to 95% methanol selectivity. The only major by-product is a small amount of easily separated methyl formate. Very small amounts of water, carbon dioxide and dimethyl ether are also produced. The present catalyst combination also is capable of tolerating fluctuations in the H[sub 2]/CO ratio without major deleterious effect on the reaction rate. Furthermore, carbon dioxide and water are also tolerated without substantial catalyst deactivation.

Tierney, J.W.; Wender, I.; Palekar, V.M.

1995-01-24T23:59:59.000Z

194

Effects of off-stoichiometry and density on the magnetic and magneto-optical properties of yttrium iron garnet films by magnetron sputtering method  

SciTech Connect (OSTI)

Yttrium iron garnet films were deposited on Si and Si/CeO{sub 2} substrates by magnetron sputtering method followed by postannealing. By varying the fabrication parameters such as sputtering atmosphere, sputtering power, and annealing atmosphere, single phase garnet films were obtained with different off-stoichiometry and film density. The dependence of cation ratio, magnetic and magneto-optical characteristics, and absorption coefficient were systemically investigated. The results reveal that a proper oxygen pressure in both sputtering and annealing process give rise to a small cation ratio of (Fe{sup 2+} or Fe{sup 4+})/Fe{sup 3+}, thus is beneficial to obtain large saturation magnetization, large Faraday rotation, and small optical absorption. The sputtering power can also affect the properties of the film through changing the film density. Our results indicate that the properties of sputtering deposited yttrium iron garnet (YIG) film can be easily tuned and optimized by modifying the off-stoichiometry and density of the film, thus provides flexibility to fabricate YIG film for extensive applications.

Yang Qinghui; Zhang Huaiwu; Wen Qiye; Liu Yingli [State Key Laboratory of Electronic Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054 (China)

2010-10-15T23:59:59.000Z

195

The ground state of the polar alkali-Strontium molecules: potential energy curve and permanent dipole moment  

E-Print Network [OSTI]

In this study, we investigate the structure of the polar alkali-Strontium diatomic molecules as possible candidates for the realization of samples of new species of ultracold polar molecules. Using a quantum chemistry approach based on Effective Core Potentials and Core Polarization Potentials, we model these systems as effective three valence electron systems, allowing for calculation of electronic properties with Full Configuration Interaction. The potential curve and the permanent dipole moment of the $^2\\Sigma^+$ ground state are determined as functions of the internuclear distances for LiSr, NaSr, KSr, RbSr, and CsSr molecules. These molecules are found to exhibit a significant permanent dipole moment, though smaller than those of the alkali-Rb molecules.

Romain Gurout; Mireille Aymar; Olivier Dulieu

2010-07-12T23:59:59.000Z

196

Methods of use of calcium hexa aluminate refractory linings and/or chemical barriers in high alkali or alkaline environments  

DOE Patents [OSTI]

A method for improving the insulating character/and or penetration resistance of a liner in contact with at least one of an alkali and/or alkaline environments is provided. The method comprises lining a surface that is subject to wear by an alkali environment and/or an alkaline environment with a refractory composition comprising a refractory aggregate consisting essentially of a calcium hexa aluminate clinker having the formula CA.sub.6, wherein C is equal to calcium oxide, wherein A is equal to aluminum oxide, and wherein the hexa aluminate clinker has from zero to less than about fifty weight percent C.sub.12A.sub.7, and wherein greater than 98 weight percent of the calcium hexa aluminate clinker having a particle size ranging from -20 microns to +3 millimeters, for forming a liner of the surface. This method improves the insulating character/and or penetration resistance of the liner.

McGowan, Kenneth A; Cullen, Robert M; Keiser, James R; Hemrick, James G; Meisner, Roberta A

2013-10-22T23:59:59.000Z

197

Ground state of the polar alkali-metal-atom-strontium molecules: Potential energy curve and permanent dipole moment  

SciTech Connect (OSTI)

In this study, we investigate the structure of the polar alkali-metal-atom-strontium diatomic molecules as possible candidates for the realization of samples of ultracold polar molecular species not yet investigated experimentally. Using a quantum chemistry approach based on effective core potentials and core polarization potentials, we model these systems as effective three-valence-electron systems, allowing for calculation of electronic properties with full configuration interaction. The potential curve and the permanent dipole moment of the {sup 2}{Sigma}{sup +} ground state are determined as functions of the internuclear distance for LiSr, NaSr, KSr, RbSr, and CsSr molecules. These molecules are found to exhibit a significant permanent dipole moment, though smaller than those of the alkali-metal-atom-Rb molecules.

Guerout, R. [Laboratoire Kastler-Brossel, CNRS, ENS, Univ Pierre et Marie Curie case 74, Campus Jussieu, F-75252 Paris Cedex 05 (France); Aymar, M.; Dulieu, O. [Laboratoire Aime Cotton, CNRS, UPR3321, Bat. 505, Univ Paris-Sud, F-91405 Orsay Cedex (France)

2010-10-15T23:59:59.000Z

198

Photon self-induced spin-to-orbital conversion in a terbium-gallium-garnet crystal at high laser power  

SciTech Connect (OSTI)

In this paper, we present experimental evidence of a third-order nonlinear optical process, self-induced spin-to-orbital conversion (SISTOC) of the photon angular momentum. This effect is the physical mechanism at the origin of the depolarization of very intense laser beams propagating in isotropic materials. The SISTOC process, like self-focusing, is triggered by laser heating leading to a radial temperature gradient in the medium. In this work we tested the occurrence of SISTOC in a terbium-gallium-garnet rod for an impinging laser power of about 100 W. To study the SISTOC process we used different techniques: polarization analysis, interferometry, and tomography of the photon orbital angular momentum. Our results confirm, in particular, that the apparent depolarization of the beam is due to the occurrence of maximal entanglement between the spin and orbital angular momentum of the photons undergoing the SISTOC process. This explanation of the true nature of the depolarization mechanism could be of some help in finding novel methods to reduce or to compensate for this usually unwanted depolarization effect in all cases where very high laser power and good beam quality are required.

Mosca, S.; De Rosa, R.; Milano, L. [Dipartimento di Scienze Fisiche, Universita di Napoli 'Federico II', Complesso Universitario di Monte S. Angelo, 80126 Napoli (Italy); INFN Sezione di Napoli, Complesso Universitario di Monte S. Angelo, 80126 Napoli (Italy); Canuel, B.; Genin, E. [EGO, European Gravitational Observatory, Via E. Amaldi, 56021 S. Stefano a Macerata, Cascina (Italy); Karimi, E. [Dipartimento di Scienze Fisiche, Universita di Napoli 'Federico II', Complesso Universitario di Monte S. Angelo, 80126 Napoli (Italy); Piccirillo, B.; Santamato, E. [Dipartimento di Scienze Fisiche, Universita di Napoli 'Federico II', Complesso Universitario di Monte S. Angelo, 80126 Napoli (Italy); CNISM-Consorzio Nazionale Interuniversitario per le Scienze Fisiche della Materia, Napoli (Italy); Marrucci, L. [Dipartimento di Scienze Fisiche, Universita di Napoli 'Federico II', Complesso Universitario di Monte S. Angelo, 80126 Napoli (Italy); CNR-INFM Coherentia, Complesso Universitario di Monte S. Angelo, 80126 Napoli (Italy)

2010-10-15T23:59:59.000Z

199

A computational analysis of the evaporator/artery of an alkali metal thermal to electric conversion (AMTEC) PX series cell  

E-Print Network [OSTI]

, while minimizing mass. Current technology, such as Radioisotope Thermoelectric Generators (RTG's) are reliable, but do not supply the power conversion efficiencies desired for future space missions. That leads to Alkali Metal Thermal to Electric...-series cells to generate electricity for the deep space vehicle. The higher efficiency of AMTEC compared to other conversion technologies, such as Radioisotope Thermoelectric Generators (RTG's), results in less energy source material being launched...

Pyrtle, Frank

1999-01-01T23:59:59.000Z

200

Kinetic studies for elucidation of the promoter effect of alkali in Fischer-Tropsch iron catalysts  

SciTech Connect (OSTI)

The kinetics of the formation of hydrocarbons in Fischer-Tropsch synthesis and of consecutive reactions, i.e., hydrogenation and double bond isomerization of primarily formed 1-alkenes, were studied in a slurry-phase reactor using alkalized and nonalkalized precipitated iron catalysts. Both consecutive reactions have an order of about -2 with respect to carbon monoxide and an order of about 1 with respect to 1-alkenes. The order with respect to hydrogen is 1 for the hydrocarbon formation and also 1 for the consecutive hydrogenation, but 0 for the consecutive isomerization. The reaction orders are not changed by addition of K{sub 2}CO{sub 3} to the catalyst. The kinetics of consecutive reactions can be interpreted by competitive adsorption of 1-alkene and carbon monoxide. Alkali addition causes an increase in the strength of carbon monoxide adsorption and consequently a decrease in 1-alkene adsorption so that the rates of the consecutive reactions are reduced. This hypothesis could be proved by studies of 1-hexene hydrogenation in the presence and absence of carbon monoxide for alkalized and nonalkalized iron catalysts. The kinetics were studied in the ranges 1.3 < P{sub CO}(10{sup 5} Pa) < 7, 1.6 < P{sub H{sub 2}}(10{sup 5} Pa) < 9, and 490 K < T < 530 K.

Herzog, K.; Gaube, J. (Institut fuer Chemische Technologie der Technischen Hochschule Darmstadt, Darmstadt (West Germany))

1989-02-01T23:59:59.000Z

Note: This page contains sample records for the topic "larson garnet alkali" 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

Cellular morphology of organic-inorganic hybrid foams based on alkali alumino-silicate matrix  

SciTech Connect (OSTI)

Organic-inorganic hybrid foams based on an alkali alumino-silicate matrix were prepared by using different foaming methods. Initially, the synthesis of an inorganic matrix by using aluminosilicate particles, activated through a sodium silicate solution, was performed at room temperature. Subsequently the viscous paste was foamed by using three different methods. In the first method, gaseous hydrogen produced by the oxidization of Si powder in an alkaline media, was used as blowing agent to generate gas bubbles in the paste. In the second method, the porous structure was generated by mixing the paste with a meringue type of foam previously prepared by whipping, under vigorous stirring, a water solution containing vegetal proteins as surfactants. In the third method, a combination of these two methods was employed. The foamed systems were consolidated for 24 hours at 40C and then characterized by FTIR, X-Ray diffraction, scanning electron microscopy (SEM) and compression tests. Low density foams (?500 Kg/m{sup 3}) with good cellular structure and mechanical properties were obtained by combining the meringue approach with the use of the chemical blowing agent based on Si.

Verdolotti, Letizia; Capasso, Ilaria; Lavorgna, Marino [Institute of Composite and Biomedical Materials, National Research Council, Naples (Italy); Liguori, Barbara; Caputo, Domenico [Department of Chemical, Materials and Industrial Engineering, University of Naples Federico II, Naples (Italy); Iannace, Salvatore [Institute of Composite and Biomedical Materials, National Research Council, Naples, Italy and IMAST SCRAL, Piazza Bovio 22 Napoli 80133 (Italy)

2014-05-15T23:59:59.000Z

202

Accurate Measurement of Ferrite Garnets to be used for Fast-Tuned loaded cavities in the range of 20-40 MHZ  

E-Print Network [OSTI]

For the implementation of ferrite-tuned cavities with orthogonally biased ferrites in the frequency range of 20- 40 MHz, different types of ferrite garnets were evaluated in terms of their electromagnetic properties. This paper describes a precision measurement method applicable to small-sized ferrite samples of 1-square-inch surface and 1.8 mm thickness in the given frequency range by means of a one-port reflection method. The material samples are exposed to a magnetic bias field range with different orientations. We present a detailed description of this technique as well as material results obtained.

Vollinger, C

2012-01-01T23:59:59.000Z

203

Study of alkali- and sulfur-enhanced corrosion of advanced energy systems. Final report  

SciTech Connect (OSTI)

The initial stage of MHD anode corrosion process appears to be dominated by out-diffusion of metallic species into the powder deposit. In addition, K and S appear to diffuse into the native oxide and underlying metal substrate. The out-diffusion process clearly leads to a loss of metal species from either the native oxide or metal substrate, while in-diffusion leads to the formation of sulfides and possibly to the accumulation of K containing compounds which may ultimately flux the protective oxide scale. The results for MHD anodes may be compared with those from previous studies of alkali-sulfur enhanced corrosion of turbine alloys. Although the specific details of these studies differ, both agree that rapid or catastrophic corrosion is preceded by a variable length induction period. During this period, relatively small changes in weight are observed. However, the protective metal oxide scale is breached which establishes the condition for rapid direct attack by condensed corrosive deposits. Thus, the mechanisms and kinetics of processes associated with the induction period are of great interest in understanding the survivability of various alloys. In the corrosion modeling effort, it was found that a simple model which considered only the diffusion-limited corrosion of iron did not correctly predict the iron corrosion product species for iron-based alloys. This lack of agreement was due to the absence of the treatment of other metal constituents in the alloy which form corrosion products. A more detailed model which includes equilibrium and diffusion relations for all metal species is required for accurate modeling of the corrosion product composition. 14 refs.

Stinespring, C.; Annen, K.; Stewart, G.

1984-01-01T23:59:59.000Z

204

Structure of the Alkali-metal-atom-Strontium molecular ions: towards photoassociation and formation of cold molecular ions  

E-Print Network [OSTI]

The potential energy curves, permanent and transition dipole moments, and the static dipolar polarizability, of molecular ions composed of one alkali-metal atom and a Strontium ion are determined with a quantum chemistry approach. The molecular ions are treated as effective two-electron systems and are treated using effective core potentials including core polarization, large gaussian basis sets, and full configuration interaction. In the perspective of upcoming experiments aiming at merging cold atom and cold ion traps, possible paths for radiative charge exchange, photoassociation of a cold Lithium or Rubidium atom and a Strontium ion are discussed, as well as the formation of stable molecular ions.

Mireille Aymar; Romain Gurout; Olivier Dulieu

2011-02-24T23:59:59.000Z

205

Structure of the alkali-metal-atom + strontium molecular ions: Towards photoassociation and formation of cold molecular ions  

SciTech Connect (OSTI)

The potential energy curves, permanent and transition dipole moments, and the static dipolar polarizability, of molecular ions composed of one alkali-metal atom and a strontium ion are determined with a quantum chemistry approach. The molecular ions are treated as effective two-electron systems and are treated using effective core potentials including core polarization, large gaussian basis sets, and full configuration interaction. In the perspective of upcoming experiments aiming at merging cold atom and cold ion traps, possible paths for radiative charge exchange, photoassociation of a cold lithium or rubidium atom and a strontium ion are discussed, as well as the formation of stable molecular ions.

Aymar, M.; Dulieu, O. [Laboratoire Aime Cotton, CNRS, UPR3321, Ba circumflex t. 505, Univ Paris-Sud, 91405 Orsay Cedex (France); Guerout, R. [Laboratoire Kastler-Brossel, CNRS, ENS, Univ Pierre et Marie Curie case 74, Campus Jussieu, F-75252 Paris Cedex 05 (France)

2011-08-14T23:59:59.000Z

206

Structure of the Alkali-metal-atom-Strontium molecular ions: towards photoassociation and formation of cold molecular ions  

E-Print Network [OSTI]

The potential energy curves, permanent and transition dipole moments, and the static dipolar polarizability, of molecular ions composed of one alkali-metal atom and a Strontium ion are determined with a quantum chemistry approach. The molecular ions are treated as effective two-electron systems and are treated using effective core potentials including core polarization, large gaussian basis sets, and full configuration interaction. In the perspective of upcoming experiments aiming at merging cold atom and cold ion traps, possible paths for radiative charge exchange, photoassociation of a cold Lithium or Rubidium atom and a Strontium ion are discussed, as well as the formation of stable molecular ions.

Aymar, Mireille; Dulieu, Olivier

2011-01-01T23:59:59.000Z

207

Supported, Alkali-Promoted Cobalt Oxide Catalysts for NOx Removal from Coal Combustion Flue Gases  

SciTech Connect (OSTI)

A series of cobalt oxide catalysts supported on alumina ({gamma}-Al{sub 2}O{sub 3}) were synthesized with varying contents of cobalt and of added alkali metals, including lithium, sodium, potassium, rubidium, and cesium. Unsupported cobalt oxide catalysts and several cobalt oxide catalysts supported ceria (CeO{sub 2}) with varying contents of cobalt with added potassium were also prepared. The catalysts were characterized with UV-visible spectroscopy and were examined for NO{sub x} decomposition activity. The CoO{sub x}/Al{sub 2}O{sub 3} catalysts and particularly the CoO{sub x}/CeO{sub 2} catalysts show N{sub 2}O decomposition activity, but none of the catalysts (unsupported Co{sub 3}O{sub 4} or those supported on ceria or alumina) displayed significant, sustained NO decomposition activity. For the Al{sub 2}O{sub 3}-supported catalysts, N{sub 2}O decomposition activity was observed over a range of reaction temperatures beginning about 723 K, but significant (>50%) conversions of N{sub 2}O were observed only for reaction temperatures >900 K, which are too high for practical commercial use. However, the CeO{sub 2}-supported catalysts display N{sub 2}O decomposition rates similar to the Al{sub 2}O{sub 3}-supported catalysts at much lower reaction temperatures, with activity beginning at {approx}573 K. Conversions of >90% were achieved at 773 K for the best catalysts. Catalytic rates per cobalt atom increased with decreasing cobalt content, which corresponds to increasing edge energies obtained from the UV-visible spectra. The decrease in edge energies suggests that the size and dimensionality of the cobalt oxide surface domains increase with increasing cobalt oxide content. The rate data normalized per mass of catalyst that shows the activity of the CeO{sub 2}-supported catalysts increases with increasing cobalt oxide content. The combination of these data suggest that supported cobalt oxide species similar to bulk Co{sub 3}O{sub 4} are inherently more active than more dispersed cobalt oxide species, but this effect was only observed with the CeO{sub 2}-supported catalysts.

Morris D. Argyle

2005-12-31T23:59:59.000Z

208

Compliant alkali silicate sealing glass for solid oxide fuel cell applications: thermal cycle stability and chemical compatibility  

SciTech Connect (OSTI)

An alkali silicate glass (SCN-1) is currently being evaluated as a candidate sealing glass for solid oxide fuel (SOFC) applications. The glass containing ~17 mole% alkalis (K2O and Na2O) remains vitreous and compliant during SOFC operation, unlike conventional SOFC sealing glasses, which experience substantial devitrification after the sealing process. The non-crystallizing compliant sealing glass has lower glass transition and softening temperatures since the microstructure remains glassy without significant crystallite formation, and hence can relieve or reduce residual stresses and also has the potential for crack healing. Sealing approaches based on compliant glass will also need to satisfy all the mechanical, thermal, chemical, physical, and electrical requirements for SOFC applications, not only in bulk properties but also at sealing interfaces. In this first of a series of papers we will report the thermal cycle stability of the glass when sealed between two SOFC components, i.e., a NiO/YSZ anode supported YSZ bilayer and a coated ferritic stainless steel interconnect material. High temperature leak rates were monitored versus thermal cycles between 700-850oC using back pressures ranging from 0.2 psi to 1.0 psi. Isothermal stability was also evaluated in a dual environment consisting of flowing dilute H2 fuel versus ambient air. In addition, chemical compatibility at the alumina and YSZ interfaces was examined with scanning electron microscopy and energy dispersive spectroscopy. The results shed new light on the topic of SOFC glass seal development.

Chou, Y. S.; Thomsen, Edwin C.; Williams, Riley T.; Choi, Jung-Pyung; Canfield, Nathan L.; Bonnett, Jeff F.; Stevenson, Jeffry W.; Shyam, Amit; Lara-Curzio, E.

2011-03-01T23:59:59.000Z

209

Theoretical simulations of protective thin film Fabry-Prot filters for integrated optical elements of diode pumped alkali lasers (DPAL)  

SciTech Connect (OSTI)

The lifetime of Diode-Pumped Alkali Lasers (DPALs) is limited by damage initiated by reaction of the glass envelope of its gain medium with rubidium vapor. Rubidium is absorbed into the glass and the rubidium cations diffuse through the glass structure, breaking bridging Si-O bonds. A damage-resistant thin film was developed enhancing high-optical transmission at natural rubidium resonance input and output laser beam wavelengths of 780 nm and 795 nm, while protecting the optical windows of the gain cell in a DPAL. The methodology developed here can be readily modified for simulation of expected transmission performance at input pump and output laser wavelengths using different combination of thin film materials in a DPAL. High coupling efficiency of the light through the gas cell was accomplished by matching the air-glass and glass-gas interfaces at the appropriate wavelengths using a dielectric stack of high and low index of refraction materials selected to work at the laser energies and protected from the alkali metal vapor in the gain cell. Thin films as oxides of aluminum, zirconium, tantalum, and silicon were selected allowing the creation of Fabry-Perot optical filters on the optical windows achieving close to 100% laser transmission in a solid optic combination of window and highly reflective mirror. This approach allows for the development of a new whole solid optic laser.

Quarrie, L., E-mail: Lindsay.Quarrie@l-3com.com, E-mail: lindsay.o.quarrie@gmail.com [New Mexico Institute of Mining and Technology, Department of Materials Engineering, 801 LeRoy Place, Socorro, NM 87801 (United States); Air Force Research Laboratory, AFRL/RDLC Laser CoE, 3550 Aberdeen Avenue SE, Kirtland AFB, NM 87117-5776 (United States)

2014-09-15T23:59:59.000Z

210

Cathodoluminescence microscopy and petrographic image analysis of aggregates in concrete pavements affected by alkali-silica reaction  

SciTech Connect (OSTI)

Various microscopic techniques (cathodoluminescence, polarizing and electron microscopy) were combined with image analysis with the aim to determine a) the modal composition and degradation features within concrete, and b) the petrographic characteristics and the geological types (rocks, and their provenance) of the aggregates. Concrete samples were taken from five different portions of Highway Nos. D1, D11, and D5 (the Czech Republic). Coarse and fine aggregates were found to be primarily composed of volcanic, plutonic, metamorphic and sedimentary rocks, as well as of quartz and feldspar aggregates of variable origins. The alkali-silica reaction was observed to be the main degradation mechanism, based upon the presence of microcracks and alkali-silica gels in the concrete. Use of cathodoluminescence enabled the identification of the source materials of the quartz aggregates, based upon their CL characteristics (i.e., color, intensity, microfractures, deformation, and zoning), which is difficult to distinguish only employing polarizing and electron microscopy. - Highlights: Black-Right-Pointing-Pointer ASR in concrete pavements on the Highways Nos. D1, D5 and D11 (Czech Republic). Black-Right-Pointing-Pointer Cathodoluminescence was combined with various microscopic techniques and image analysis. Black-Right-Pointing-Pointer ASR was attributed to aggregates. Black-Right-Pointing-Pointer Source materials of aggregates were identified based on cathodoluminescence characteristics. Black-Right-Pointing-Pointer Quartz comes from different volcanic, plutonic and metamorphic parent rocks.

Stastna, A., E-mail: astastna@gmail.com [Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University in Prague, Albertov 6, 128 43 Praha 2 (Czech Republic); Sachlova, S.; Pertold, Z.; Prikryl, R. [Institute of Geochemistry, Mineralogy and Mineral Resources, Faculty of Science, Charles University in Prague, Albertov 6, 128 43 Praha 2 (Czech Republic); Leichmann, J. [Department of Geological Sciences, Faculty of Science, Masaryk University in Brno, Kotlarska 267/2, 611 37 Brno (Czech Republic)

2012-03-15T23:59:59.000Z

211

Improved Recovery Boiler Performance Through Control of Combustion, Sulfur, and Alkali Chemistry  

SciTech Connect (OSTI)

This project involved the following objectives: 1. Determine black liquor drying and devolatilization elemental and total mass release rates and yields. 2. Develop a public domain physical/chemical kinetic model of black liquor drop combustion, including new information on drying and devolatilization. 3. Determine mechanisms and rates of sulfur scavenging in recover boilers. 4. Develop non-ideal, public-domain thermochemistry models for alkali salts appropriate for recovery boilers 5. Develop data and a one-dimensional model of a char bed in a recovery boiler. 6. Implement all of the above in comprehensive combustion code and validate effects on boiler performance. 7. Perform gasification modeling in support of INEL and commercial customers. The major accomplishments of this project corresponding to these objectives are as follows: 1. Original data for black liquor and biomass data demonstrate dependencies of particle reactions on particle size, liquor type, gas temperature, and gas composition. A comprehensive particle submodel and corresponding data developed during this project predicts particle drying (including both free and chemisorbed moisture), devolatilization, heterogeneous char oxidation, char-smelt reactions, and smelt oxidation. Data and model predictions agree, without adjustment of parameters, within their respective errors. The work performed under these tasks substantially exceeded the original objectives. 2. A separate model for sulfur scavenging and fume formation in a recovery boiler demonstrated strong dependence on both in-boiler mixing and chemistry. In particular, accurate fume particle size predictions, as determined from both laboratory and field measurements, depend on gas mixing effects in the boilers that lead to substantial particle agglomeration. Sulfur scavenging was quantitatively predicted while particle size required one empirical mixing factor to match data. 3. Condensed-phase thermochemistry algorithms were developed for salt mixtures and compared with sodium-based binary and higher order systems. Predictions and measurements were demonstrated for both salt systems and for some more complex silicate-bearing systems, substantially exceeding the original scope of this work. 4. A multi-dimensional model of char bed reactivity developed under this project demonstrated that essentially all reactions in char beds occur on or near the surface, with the internal portions of the bed being essentially inert. The model predicted composition, temperature, and velocity profiles in the bed and showed that air jet penetration is limited to the immediate vicinity of the char bed, with minimal impact on most of the bed. The modeling efforts substantially exceeded the original scope of this project. 5. Near the completion of this project, DOE withdrew the BYU portion of a multiparty agreement to complete this and additional work with no advanced warning, which compromised the integration of all of this material into a commercial computer code. However, substantial computer simulations of much of this work were initiated, but not completed. 6. The gasification modeling is nearly completed but was aborted near its completion according to a DOE redirection of funds. This affected both this and the previous tasks.

Baxter, Larry L.

2008-06-09T23:59:59.000Z

212

Kimzeyite garnet phosphors  

DOE Patents [OSTI]

A phosphor of formula I is included in a phosphor composition in a lighting apparatus capable of emitting white light, Ca.sub.3-x-zSr.sub.xCe.sub.zM.sup.1.sub.2M.sup.2AlSiO.sub.12 (I) wherein M.sup.1 is Hf, Zr, or a combination thereof; M.sup.2 is Al, or a combination of Al and Ga; z<3-x; and 0.2>x.gtoreq.0. The lighting apparatus includes a semiconductor light source in addition to the phosphor composition.

Lyons, Robert Joseph

2013-05-14T23:59:59.000Z

213

Evaluation of laboratory test method for determining the potential alkali contribution from aggregate and the ASR safety of the Three-Gorges dam concrete  

SciTech Connect (OSTI)

The releasable alkali from granite, which was used in the Three-Gorges concrete dam project in China, and from gneiss and feldspar was estimated by extraction in distilled water and super-saturated Ca(OH){sub 2} solution. Results show that: i) the finer the particles and the higher the temperature, the greater and faster the release of alkali; ii) compared with extraction by distilled water, super-saturated Ca(OH){sub 2} solution had a stronger activation on feldspar than on granite and gneiss; iii) for the three rocks tested, thermal activation had the largest effect on gneiss and a lower and similar effect on granite and feldspar. For very fine particles, temperature had a similar effect on the release of alkali by all three rocks. Because the aggregate used in the Three-Gorges dam concrete is non-reactive and a low calcium fly ash was used in the concrete, ASR would not be an issue for the dam, despite the release of alkali from the aggregate into the concrete.

Lu Duyou [College of Materials Science and Engineering, Nanjing University of Technology, No. 5 Xin Mafan Road, Nanjing, Jiangsu, 210009 (China)]. E-mail: duyoulu@njut.edu.cn; Zhou, Xiaoling [College of Materials Science and Engineering, Nanjing University of Technology, No. 5 Xin Mafan Road, Nanjing, Jiangsu, 210009 (China); Xu Zhongzi [College of Materials Science and Engineering, Nanjing University of Technology, No. 5 Xin Mafan Road, Nanjing, Jiangsu, 210009 (China); Lan Xianghui [College of Materials Science and Engineering, Nanjing University of Technology, No. 5 Xin Mafan Road, Nanjing, Jiangsu, 210009 (China); Tang Mingshu [College of Materials Science and Engineering, Nanjing University of Technology, No. 5 Xin Mafan Road, Nanjing, Jiangsu, 210009 (China); Fournier, Benoit [ICON/CANMET, Natural Resources Canada, 405 Rocherster Street, Ottawa, ON, K1A 0G1 (Canada)

2006-06-15T23:59:59.000Z

214

Interactions of simulated high level waste (HLW) calcine with alkali borosilicate glass. S. Morgan, R. J. Hand, N. C. Hyatt and W. E. Lee  

E-Print Network [OSTI]

Interactions of simulated high level waste (HLW) calcine with alkali borosilicate glass. S. Morgan, Mappin St, Sheffield, S1 3JD, UK ABSTRACT This study looks at the interactions between simulated calcined and a solution of lithium nitrate. The addition of sucrose reacts with the free nitric acid in the system

Sheffield, University of

215

A comparative transport study of Bi{sub 2}Se{sub 3} and Bi{sub 2}Se{sub 3}/yttrium iron garnet  

SciTech Connect (OSTI)

Bilayers of 20 quintuple layer Bi{sub 2}Se{sub 3} on 30?nm thick yttrium iron garnet (YIG) have been grown with molecular beam epitaxy in conjunction with pulsed laser deposition. The presence of the ferri-magnetic insulator YIG causes additional scattering to the surface states of the Bi{sub 2}Se{sub 3} topological insulator layer, as indicated by the temperature dependence of the resistivity. From the two-channel analysis of the Hall data, we find that the surface contribution in the bilayer samples is greatly reduced. Furthermore, the weak antilocalization effect from the surface states is clearly suppressed due to the presence of the YIG layer.

Jiang, Zilong; Tang, Chi; Shi, Jing [Department of Physics and Astronomy, University of California, Riverside, California 92521 (United States); Katmis, Ferhat; Wei, Peng; Moodera, Jagadeesh S. [Francis Bitter Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

2014-06-02T23:59:59.000Z

216

Effect of Acid, Alkali, and Steam Explosion Pretreatments on Characteristics of Bio-Oil Produced from Pinewood  

SciTech Connect (OSTI)

Bio-oil produced from pinewood by fast pyrolysis has the potential to be a valuable substitute for fossil fuels. Pretreatment prior to the fast pyrolysis process has been shown to alter the structure and chemical composition of biomass. To determine the influence of biomass pretreatments on bio-oil produced during fast pyrolysis, we tested three pretreatment methods: dilute acid, dilute alkali, and steam explosion. Bio-oils were produced from untreated and pretreated pinewood feedstocks in an auger reactor at 450 C. The bio-oils?¢???? physical properties including pH, water content, acid value, density, viscosity, and heating value were measured. Chemical characteristics of the bio-oils were determined by gas chromatographymass spectrometry. Results showed that bio-oil yield and composition were influenced by biomass pretreatment. Of the three pretreatment methods, 1%H2SO4 pretreatment resulted in the highest bio-oil yield and best bio-oil quality.

Wang, Hui; Srinivasan, Radhakrishnan; Yu, Fei; Steele, Philip; Li, Qi; Mitchell, Brian

2011-06-21T23:59:59.000Z

217

Methanol synthesis using a catalyst combination of alkali or alkaline earth salts and reduced copper chromite for methanol synthesis  

DOE Patents [OSTI]

The present invention relates to a novel route for the synthesis of methanol, and more specifically to the production of methanol by contacting synthesis gas under relatively mild conditions in a slurry phase with a catalyst combination comprising reduced copper chromite and basic alkali salts or alkaline earth salts. The present invention allows the synthesis of methanol to occur in the temperature range of approximately 100.degree.-160.degree. C. and the pressure range of 40-65 atm. The process produces methanol with up to 90% syngas conversion per pass and up to 95% methanol selectivity. The only major by-product is a small amount of easily separated methyl formate. Very small amounts of water, carbon dioxide and dimethyl ether are also produced. The present catalyst combination also is capable of tolerating fluctuations in the H.sub.2 /CO ratio without major deleterious effect on the reaction rate. Furthermore, carbon dioxide and water are also tolerated without substantial catalyst deactivation.

Tierney, John W. (Pittsburgh, PA); Wender, Irving (Pittsburgh, PA); Palekar, Vishwesh M. (Pittsburgh, PA)

1993-01-01T23:59:59.000Z

218

Alkali injection system with controlled CO.sub.2 /O.sub.2 ratios for combustion of coal  

DOE Patents [OSTI]

A high temperature combustion process for an organic fuel containing sulfur n which the nitrogen of air is replaced by carbon dioxide for combination with oxygen with the ratio of CO.sub.2 /O.sub.2 being controlled to generate combustion temperatures above 2000 K. for a gas-gas reaction with SO.sub.2 and an alkali metal compound to produce a sulfate and in which a portion of the carbon-dioxide rich gas is recycled for mixing with oxygen and/or for injection as a cooling gas upstream from heating exchangers to limit fouling of the exchangers, with the remaining carbon-dioxide rich gas being available as a source of CO.sub.2 for oil recovery and other purposes.

Berry, Gregory F. (Naperville, IL)

1988-01-01T23:59:59.000Z

219

Studies on the production of ultra-clean coal by alkali-acid leaching of low-grade coals  

SciTech Connect (OSTI)

The use of low-grade coal in thermal power stations is leading to environmental pollution due to the generation of large amounts of fly ash, bottom ash, and CO{sub 2} besides other pollutants. It is therefore important to clean the coal before using it in thermal power stations, steel plants, or cement industries etc. Physical beneficiation of coal results in only limited cleaning of coal. The increasing environmental pollution problems from the use of coal have led to the development of clean coal technologies. In fact, the clean use of coal requires the cleaning of coal to ultra low ash contents, keeping environmental norms and problems in view and the ever-growing need to increase the efficiency of coal-based power generation. Therefore this requires the adaptation of chemical cleaning techniques for cleaning the coal to obtain ultra clean coal having ultra low ash contents. Presently the reaction conditions for chemical demineralization of low-grade coal using 20% aq NaOH treatment followed by 10% H{sub 2}SO{sub 4} leaching under reflux conditions have been optimized. In order to reduce the concentration of alkali and acid used in this process of chemical demineralization of low-grade coals, stepwise, i.e., three step process of chemical demineralization of coal using 1% or 5% aq NaOH treatment followed by 1% or 5% H{sub 2}SO{sub 4} leaching has been developed, which has shown good results in demineralization of low-grade coals. In order to conserve energy, the alkali-acid leaching of coal was also carried out at room temperature, which gave good results.

Nabeel, A.; Khan, T.A.; Sharma, D.K. [Jamia Millia Islamia, New Delhi (India). Dept. of Chemistry

2009-07-01T23:59:59.000Z

220

Solubility of grossular, Ca3Al2Si3O12, in H2ONaCl solutions at 800 C and 10 kbar, and the stability of garnet in  

E-Print Network [OSTI]

Solubility of grossular, Ca3Al2Si3O12, in H2O­NaCl solutions at 800 °C and 10 kbar, and the stability of garnet in the system CaSiO3­Al2O3­H2O­NaCl Robert C. Newton, Craig E. Manning * Department of Earth and Space Sciences, University of California Los Angeles, Los Angeles, CA 90095-1567, USA Received

Manning, Craig

Note: This page contains sample records for the topic "larson garnet alkali" from the National Library of EnergyBeta (NLEBeta).
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221

Testing of candidate materials for their resistance to alkali-vapor adsorption in PFBC and gasification environments. Final report  

SciTech Connect (OSTI)

Laboratory-scale studies were performed to identify metallic material(s) having no, or limited, affinity for alkali vapors in an environment of either the off-gas from pressurized fluidized-bed combustion (PFBC) or the fuel gas from coal gasification. Such materials would be potential candidates for use as components in advanced coal-utilization systems. The following materials were tested for adsorption of NaCl vapor at 870--875 C and atmospheric pressure in a simulated PFBC off-gas (oxidizing) doped with 80 ppmW NaCl vapor: iron-based Type 304 stainless steel (304 SS), nickel-based Hastelloy C-276 and Hastelloy X alloys, cobalt-based Haynes No. 188 alloy, noble-metal-coated 304 SS, aluminized 304 SS, and ZrO{sub 2}-coated 304 SS. The Haynes No. 188 alloy and the aluminized 304 SS were also tested for their NaCl-vapor adsorption in a simulated gasification fuel gas (reducing) under the same test conditions as in the PFBC off-gas test. After 100 h of testing, the specimens were analyzed with a SEM equipped with an energy dispersive X-ray analyzer, and by an AES. The aluminized 304 SS had the least tendency to adsorb NaCl vapor, as well as an excellent resistance to corrosion as a result of the formation of a protective layer of Al{sub 2}O{sub 3} on its surface. In the reducing environment, however, the aluminized 304 SS was badly corroded by H{sub 2}S attack. The Haynes No. 188 showed virtually no NaCl-vapor adsorption and only limited H{sub 2}S attack. The authors recommend further long-term parametric studies to quantitate alkali-vapor adsorption as a function of operating variables for (1) the aluminized 304 SS in the PFBC off-gas environment and (2) the Haynes No. 188 in the gasification fuel gas environment.

Lee, S.H.D.; Natesan, K.; Swift, W.M.

1995-08-01T23:59:59.000Z

222

Reply to N. C. Higgins' comment on origin of alkali-feldspar granites: An example from the Poimena Granite, northeastern Tasmania, Australia  

SciTech Connect (OSTI)

This paper acts as a rebuttal to comments made by other scientists regarding the origin of the Poimena Granite as discussed in an earlier paper by these authors. The Lottah Granite and the enclosing Poimena Granite of northeastern Tasmania represent one of the best documented and most intensely Li-F-rich alkali-feldspar granite and its much more voluminous biotite granite host. The issue under debate is which of the two most generally supported models for the origin of Li-F-Sn granites-magmatic or metasomatic-hydrothermal-best explains the data obtained from the Lottah and Poimena Granites It is not the authors intent to imply that alkali-feldspar granites cannot be generated from granites similar to the Poimena Granite by fractional crystallization: the St. Austell Granite is an excellent example of such a relationship. Nor do the authors intend to imply that metasomatic and hydrothermal processes have not operated at all in the Lottah Granite. They seek rather to demonstrate that magmatic processes alone are capable of generating alkali-feldspar granites enriched in Sn, Li, Rb, F etc. and that such granites need not be genetically linked to spatially associated normal granites. Some of the arguments and data are subsequently presented in this paper.

MacKenzie, D.E.; Sun, S.S.; Black, L.P. (Bureau of Mineral Resources, Canberra (Australia))

1990-08-01T23:59:59.000Z

223

Compliant alkali silicate sealing glass for solid oxide fuel cell applications: the effect of protective alumina coating on electrical stability in dual environment  

SciTech Connect (OSTI)

An alkali-containing silicate glass was recently proposed as a potential sealant for solid oxide fuel cells (SOFC). The glass contains appreciable amount of alkalis and retains its glassy microstructure at elevated temperatures over time. It is more compliant as compared to conventional glass-ceramics sealants and could potentially heal cracks during thermal cycling. In previous papers the thermal cycle stability, thermal stability and chemical compatibility were reported with yttria-stabilized zirconia (YSZ) electrolyte and YSZ-coated ferritic stainless steel interconnect. In this paper, we report the electrical stability of the compliant glass with aluminized AISI441 interconnect material under DC load in dual environment at 700-800oC. Apparent electrical resistivity was measured with a 4-point method for the glass sealed between two aluminized AISI441 metal coupons as well as plain AISI441 substrates. The results showed good electrical stability with the aluminized AISI441 substrate, while unstable behavior was observed for un-coated substrates. In addition, interfacial microstructure was examined with scanning electron microscopy and correlated with the measured resistivity results. Overall, the alumina coating demonstrated good chemical stability with the alkali-containing silicate sealing glass under DC loading.

Chou, Y. S.; Choi, Jung-Pyung; Stevenson, Jeffry W.

2012-12-01T23:59:59.000Z

224

Effect of CeO{sub 2} buffer layer on the microstructure and magnetic properties of yttrium iron garnet film on Si substrate  

SciTech Connect (OSTI)

Yttrium iron garnet films were grown by radio frequency magnetron sputtering on Si(111) substrate with and without CeO{sub 2} buffer layer, and influence of CeO{sub 2} buffer on the microstructure and magnetic behaviors of the films were investigated. As compared with the film without buffer, a larger saturation magnetizaton (M{sub s}), lower coercive force (H{sub c}), and higher remnant magnetization (M{sub r}) were obtained due to the introduction of CeO{sub 2} layer. The higher M{sub s} results from the denser structure and the smaller content of Fe{sup 2+} ions. The lower H{sub c} and higher M{sub r} can be explained by the small surface roughness and crystal grains size. The film on CeO{sub 2} buffer layer possess fine microstructure and its surface roughness is smaller than the unbuffered films, which provides an increased exchange between the crystal grains and an enhanced spontaneous magnetization effect, leading to the higher remnant magnetization.

Yang Qinghui; Zhang Huaiwu; Wen Qiye; Liu Yingli [State Key Laboratory of Electronic Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054 (China); Xiao, John Q. [Department of Physics and Astronomy, University of Delaware, Newark, Delaware, 19716 (United States)

2009-04-01T23:59:59.000Z

225

Compound and Elemental Analysis At Seven Mile Hole Area (Larson...  

Open Energy Info (EERE)

Technique Compound and Elemental Analysis Activity Date Usefulness not indicated DOE-funding Unknown Notes Standard X-ray diffractometer (XRD) analyses were used in the...

226

Miscomputing Ratio: Social Cost of Selfish Computing Kate Larson  

E-Print Network [OSTI]

systems. The bulk of auction theory assumes that the bidders' valuations for items are given a priori their valuations. We intro- duce a way of measuring the negative impact of agents choosing computing strategies.) in multiagent systems. The bulk of auction theory assumes that the bidders' valuations for items are given

Gordon, Geoffrey J.

227

Universal scaling of potential energy functions describing intermolecular interactions. II. The halide-water and alkali metal-water interactions  

SciTech Connect (OSTI)

The scaled forms of the newly introduced generalized potential energy functions (PEFs) describing intermolecular interactions [J. Chem. Phys. xx, yyyyy (2011)] have been used to fit the ab-initio minimum energy paths (MEPs) for the halide- and alkali metal-water systems X-(H2O), X=F, Cl, Br, I, and M+(H2O), M=Li, Na, K, Rb, Cs. These generalized forms produce fits to the ab-initio data that are between one and two orders of magnitude better in the ?2 than the original forms of the PEFs. They were found to describe both the long-range, minimum and repulsive wall of the potential energy surface quite well. Overall the 4-parameter extended Morse (eM) and generalized Buckingham exponential-6 (gB-e6) potentials were found to best fit the ab-initio data. Furthermore, a single set of parameters of the reduced form was found to describe all candidates within each class of interactions. The fact that in reduced coordinates a whole class of interactions can be represented by a single PEF, yields the simple relationship between the molecular parameters associated with energy (well depth, ?), structure (equilibrium distance, rm) and spectroscopy (anharmonic frequency, ?):? = A? (? /?)1/ 2 /rm + B?? /rm 3 , where A and B are constants depending on the underlying PEF. This more general case of Badgers rule has been validated using the experimentally measured frequencies of the hydrogen bonded OH stretching vibrations in the halide-water series.

Werhahn, Jasper C.; Akase, Dai; Xantheas, Sotiris S.

2014-08-14T23:59:59.000Z

228

Development of standardized air-blown coal gasifier/gas turbine concepts for future electric power systems. Volume 3, Appendix B: NO{sub x} and alkali vapor control strategies: Final report  

SciTech Connect (OSTI)

CRS Sirrine (CRSS) is evaluating a novel IGCC process in which gases exiting the gasifier are burned in a gas turbine combustion system. The turbine exhaust gas is used to generate additional power in a conventional steam generator. This results in a significant increase in efficiency. However, the IGCC process requires development of novel approaches to control SO{sub 2} and NO{sub x} emissions and alkali vapors which can damage downstream turbine components. Ammonia is produced from the reaction of coal-bound nitrogen with steam in the reducing zone of any fixed bed coal gasifier. This ammonia can be partially oxidized to NO{sub x} when the product gas is oxidized in a gas turbine combustor. Alkali metals vaporize in the high-temperature combustion zone of the gasifier and laser condense on the surface of small char or ash particles or on cooled metal surfaces. It these alkali-coated materials reach the gas turbine combustor, the alkali will revaporize condense on turbine blades and cause rapid high temperature corrosion. Efficiency reduction will result. PSI Technology Company (PSIT) was contracted by CRSS to evaluate and recommend solutions for NO{sub x} emissions and for alkali metals deposition. Various methods for NO{sub x} emission control and the potential process and economic impacts were evaluated. This included estimates of process performance, heat and mass balances around the combustion and heat transfer units and a preliminary economic evaluation. The potential for alkali metal vaporization and condensation at various points in the system was also estimated. Several control processes and evaluated, including an order of magnitude cost for the control process.

Not Available

1990-07-01T23:59:59.000Z

229

Simultaneous high-temperature removal of alkali and particulates in a pressurized gasification system. Final technical progress report, April 1981-July 1983  

SciTech Connect (OSTI)

This program is directed at performing experimental and analytical investigations, deriving system designs, and estimating costs to ascertain the feasibility of using aluminosilicate-based getters for controlling alkali in pressurized gasification systems. Its overall objective is to develop a plan for evaluating a scaled-up version of the gettering process as a unit operation or as an integral part of a particulate removal device. This report describes work completed on the four technical program tasks: Thermodynamic projections; Getter Selection and Qualification; System Performance Projections; and Program Definition for Concept Scale-up during the 27-month contract performance period. Work completed on the thermodynamic projections includes a data base update, development of alkali phase diagrams, and system performance projections. Getter selection and qualification efforts involved over 70 kinetic studies in which a leading candidate getter - emathlite - was selected and characterized. System performance projections identified a packed-bed configuration containing relatively large getter pellets as the preferred contacting device for a full-scale unit. For emathlite, we concluded that full-scale unit bed heights of 2 m or less would be required if we assume annual replacement on the basis of bed saturation capacity. Concept scale-up work involved defining the hardware and test program requirements for further development of the emathlite packed-bed system. 56 references, 80 figures, 74 tables.

Mulik, P.R.; Alvin, M.A.; Bachovchin, D.M.

1983-09-01T23:59:59.000Z

230

Compliant alkali silicate sealing glass for solid oxide fuel cell applications: the effect of protective YSZ coating on electrical stability in dual environment  

SciTech Connect (OSTI)

Recently, compliant sealing glass has been proposed as a potential candidate sealant for solid oxide fuel cell (SOFC) applications. In a previous paper, the thermal stability and chemical compatibility were reported for a compliant alkali-containing silicate glass sealed between anode supported YSZ bi-layer and YSZ-coated stainless steel interconnect. In this paper, we will report the electrical stability of the compliant glass under a DC load and dual environment at 700-800 degrees C. Apparent electrical resistivity was measured with a 4-point method for the glass sealed between two plain SS441 metal coupons or YSZ-coated aluminized substrates. The results showed instability with plain SS441 at 800 degrees C, but stable behavior of increasing resistivity with time was observed with the YSZ coated SS441. In addition, results of interfacial microstructure analysis with scanning electron microscopy will be correlated with the measured resistivity results. Overall, the YSZ coating demonstrated chemically stability with the alkali-containing compliant silicate sealing glass under electrical field and dual environments.

Chou, Y. S.; Thomsen, Edwin C.; Choi, Jung-Pyung; Stevenson, Jeffry W.

2012-03-15T23:59:59.000Z

231

Compliant alkali silicate sealing glass for solid oxide fuel cell applications: Combined stability in isothermal ageing and thermal cycling with YSZ coated ferritic stainless steels  

SciTech Connect (OSTI)

An alkali-containing silicate glass (SCN-1) is currently being evaluated as a candidate sealing glass for solid oxide fuel cell (SOFC) applications. The glass contains about 17 mole% alkalis (K+Na) and has low glass transition and softening temperatures. It remains vitreous and compliant around 750-800oC after sealing without substantial crystallization, as contrary to conventional glass-ceramic sealants, which experience rapid crystallization after the sealing process. The glassy nature and low characteristic temperatures can reduce residual stresses and result in the potential for crack healing. In a previous study, the glass was found to have good thermal cycle stability and was chemically compatible with YSZ coating during short term testing. In the current study, the compliant glass was further evaluated in a more realistic way in that the sealed glass couples were first isothermally aged for 1000h followed by thermal cycling. High temperature leakage was measured. The chemical compatibility was also investigated with powder mixtures at 700 and 800oC to enhance potential interfacial reaction. In addition, interfacial microstructure was examined with scanning electron microscopy and evaluated with regard to the leakage and chemical compatibility results.

Chou, Y. S.; Thomsen, Edwin C.; Choi, Jung-Pyung; Stevenson, Jeffry W.

2012-01-01T23:59:59.000Z

232

Atomic Beam Merging and Suppression of Alkali Contaminants in Multi Body High Power Targets: Design and Test of Target and Ion Source Prototypes at ISOLDE  

E-Print Network [OSTI]

The next generation of high power ISOL-facilities will deliver intense and pure radioactive ion beams. Two key issues of developments mandatory for the forthcoming generation of ISOL target-ion source units are assessed and demonstrated in this thesis. The design and production of target and ion-source prototypes is described and dedicated measurements at ISOLDE-CERN of their radioisotope yields are analyzed. The purity of short lived or rare radioisotopes suffer from isobaric contaminants, notably alkalis which are highly volatile and easily ionized elements. Therefore, relying on their chemical nature, temperature controlled transfer lines were equipped with a tube of quartz that aimed at trapping these unwanted elements before they reached the ion source. The successful application yields high alkali-suppression factors for several elements (ie: 80, 82mRb, 126, 142Cs, 8Li, 46K, 25Na, 114In, 77Ga, 95, 96Sr) for quartz temperatures between 300C and 1100C. The enthalpies of adsorption on quartz were measu...

Bouquerel, Elian J A; Lettry, J; Stora, T

2009-01-01T23:59:59.000Z

233

Alkali activated aerogels.  

E-Print Network [OSTI]

??Clay aerogels are unique materials formed through the sublimation drying of aluminosilicate clay hydrogels. Aerogels have been an area of increased research interest in the (more)

Svingala, Forrest R.

2009-01-01T23:59:59.000Z

234

Garnet Wind | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6TheoreticalFuelCell Energy IncFORTechnologyGamma

235

New method to minimize high-temperature corrosion resulting from alkali sulfate and chloride deposition in combustion systems. II. molybdenum salts  

SciTech Connect (OSTI)

The use of fuels other than natural gas in gas turbine generators still is fraught with blade corrosion problems that result from the formation of sodium sulfate or potassium sulfate, in the presence of chlorine. The present work illustrates that the addition of molybdenum salts to synthetic fuels (synfuels) modifies this deposition process and benign protective coatings of alkali polymolybdates are produced instead. This study is a follow-up to research published earlier in this journal that showed closely similar behavior with tungsten salt additives. In the case of molybdenum, a new preferential ranking of product formation on the surface is established that is closely related to the thermodynamic stabilities, namely, Na{sub 2}Mo{sub 2}O{sub 7} {gt} Na{sub 2}SO{sub 4} {gt} Na{sub 2}MoO{sub 4} {gt} NaCl and K{sub 2}Mo{sub 4}O{sub 13} {gt} K{sub 2}Mo{sub 3}O{sub 10} {gt} K{sub 2}Mo{sub 2}O{sub 7} {gt} K{sub 2}SO{sub 4} {gt} K{sub 2}MoO{sub 4} {gt} KCl. This chemistry exists under fuel-lean conditions and is otherwise not sensitive to the fuel, combustion conditions, surface temperature, or material. The required additive trace levels of molybdenum salt are on the order of twice that of the gaseous alkali, on an atomic basis. Consequently, when used as a final pre-gas turbine polishing technique and following other fuel precleaning methods, the approach offers a very practical and inexpensive solution. 63 refs., 6 figs., 1 tab.

Keith Schofield [University of California, Santa Barbara, CA (United States). Materials Research Laboratory

2005-10-01T23:59:59.000Z

236

Influence of slag chemistry on the hydration of alkali-activated blast-furnace slag - Part I: Effect of MgO  

SciTech Connect (OSTI)

The hydration and the microstructure of three alkali activated slags (AAS) with MgO contents between 8 and 13 wt.% are investigated. The slags were hydrated in the presence of two different alkaline activators, NaOH and Na{sub 2}SiO{sub 3}.5H{sub 2}O (WG). Higher MgO content of the slag resulted in a faster reaction and higher compressive strengths during the first days. The formation of C(- A)-S-H and of a hydrotalcite-like phase was observed in all samples by X-ray diffraction (XRD), thermal analysis (TGA) and scanning electron microscopy (SEM) techniques. Increasing the MgO content of the slag from 8 to 13% increased the amount of hydrotalcite and lowered the Al uptake by C-S-H resulting in 9% higher volume of the hydrates and a 50 to 80% increase of the compressive strength after 28 days and longer for WG activated slag pastes. For NaOH activated slags only a slight increase of the compressive strength was measured.

Ben Haha, M.; Lothenbach, B., E-mail: barbara.lothenbach@empa.ch; Le Saout, G.; Winnefeld, F.

2011-09-15T23:59:59.000Z

237

Influence of slag chemistry on the hydration of alkali-activated blast-furnace slag - Part II: Effect of Al{sub 2}O{sub 3}  

SciTech Connect (OSTI)

The hydration and microstructural evolution of three alkali activated slags (AAS) with Al{sub 2}O{sub 3} contents between 7 and 17% wt.% have been investigated. The slags were hydrated in the presence of two different alkaline activators, NaOH and Na{sub 2}SiO{sub 3}{center_dot}5H{sub 2}O. The formation of C(-A)-S-H and hydrotalcite was observed in all samples by X-ray diffraction, thermal analysis and scanning electron microscopy. Higher Al{sub 2}O{sub 3} content of the slag decreased the Mg/Al ratio of hydrotalcite, increased the Al incorporation in the C(-A)-S-H and led to the formation of straetlingite. Increasing Al{sub 2}O{sub 3} content of the slag slowed down the early hydration and a lower compressive strength during the first days was observed. At 28 days and longer, no significant effects of slag Al{sub 2}O{sub 3} content on the degree of hydration, the volume of the hydrates, the coarse porosity or on the compressive strengths were observed.

Ben Haha, M.; Lothenbach, B., E-mail: barbara.lothenbach@empa.ch; Le Saout, G.; Winnefeld, F.

2012-01-15T23:59:59.000Z

238

Multi-phase glass-ceramics as a waste form for combined fission products: alkalis, alkaline earths, lanthanides, and transition metals  

SciTech Connect (OSTI)

In this study, multi-phase silicate-based glass-ceramics were investigated as an alternate waste form for immobilizing non-fissionable products from used nuclear fuel. Currently, borosilicate glass is the waste form selected for immobilization of this waste stream, however, the low thermal stability and solubility of MoO{sub 3} in borosilicate glass translates into a maximum waste loading in the range of 15-20 mass%. Glass-ceramics provide the opportunity to target durable crystalline phases, e.g., powellite, oxyapatite, celsian, and pollucite, that will incorporate MoO{sub 3} as well as other waste components such as lanthanides, alkalis, and alkaline earths at levels 2X the solubility limits of a single-phase glass. In addition a glass-ceramic could provide higher thermal stability, depending upon the properties of the crystalline and amorphous phases. Glass-ceramics were successfully synthesized at waste loadings of 42, 45, and 50 mass% with the following glass additives: B{sub 2}O{sub 3}, Al{sub 2}O{sub 3}, CaO and SiO{sub 2} by slow cooling form from a glass melt. Glass-ceramics were characterized in terms of phase assemblage, morphology, and thermal stability. The targeted phases: powellite and oxyapatite were observed in all of the compositions along with a lanthanide borosilicate, and cerianite. Results of this initial investigation of glass-ceramics show promise as a potential waste form to replace single-phase borosilicate glass.

Crum, Jarrod V.; Turo, Laura A.; Riley, Brian J.; Tang, Ming; Kossoy, Anna

2012-04-01T23:59:59.000Z

239

Alkali deposits found in biomass boilers: The behavior of inorganic material in biomass-fired power boilers -- Field and laboratory experiences. Volume 2  

SciTech Connect (OSTI)

This report documents the major findings of the Alkali Deposits Investigation, a collaborative effort to understand the causes of unmanageable ash deposits in biomass-fired electric power boilers. Volume 1 of this report provide an overview of the project, with selected highlights. This volume provides more detail and discussion of the data and implications. This document includes six sections. The first, the introduction, provides the motivation, context, and focus for the investigation. The remaining sections discuss fuel properties, bench-scale combustion tests, a framework for considering ash deposition processes, pilot-scale tests of biomass fuels, and field tests in commercially operating biomass power generation stations. Detailed chemical analyses of eleven biomass fuels representing a broad cross-section of commercially available fuels reveal their properties that relate to ash deposition tendencies. The fuels fall into three broad categories: (1) straws and grasses (herbaceous materials); (2) pits, shells, hulls and other agricultural byproducts of a generally ligneous nature; and (3) woods and waste fuels of commercial interest. This report presents a systematic and reasonably detailed analysis of fuel property, operating condition, and boiler design issues that dictate ash deposit formation and property development. The span of investigations from bench-top experiments to commercial operation and observations including both practical illustrations and theoretical background provide a self-consistent and reasonably robust basis to understand the qualitative nature of ash deposit formation in biomass boilers. While there remain many quantitative details to be pursued, this project encapsulates essentially all of the conceptual aspects of the issue. It provides a basis for understanding and potentially resolving the technical and environmental issues associated with ash deposition during biomass combustion. 81 refs., 124 figs., 76 tabs.

Baxter, L.L. [Sandia National Labs., Livermore, CA (United States). Combustion Research Facility; Miles, T.R.; Miles, T.R. Jr. [Miles (Thomas R.), Portland, OR (United States); Jenkins, B.M. [California Univ., Davis, CA (United States); Dayton, D.C.; Milne, T.A. [National Renewable Energy Lab., Golden, CO (United States); Bryers, R.W. [Foster Wheeler Development Corp., Livingston, NJ (United States); Oden, L.L. [Bureau of Mines, Albany, OR (United States). Albany Research Center

1996-03-01T23:59:59.000Z

240

DIVALENT ION EXCHANGE WITH ALKALI  

E-Print Network [OSTI]

Injection for Enhanced Oil Recovery - A Status Report," SPEDOE Symposium on Enhanced Oil Recovery, Tulsa, OK, Apri120-ions is important enhanced oil recovery with chemical addi-

Bunge, A.L.

2011-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "larson garnet alkali" 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

Substantial enhancement in intrinsic coercivity on M-type strontium hexaferrite through the increase in magneto-crystalline anisotropy by co-doping of group-V and alkali elements  

SciTech Connect (OSTI)

The effect of d{sup 1} impurity doping in Sr-hexaferrite (SrM) on the magnetic anisotropy is investigated. First-principles calculations revealed that group-V elements (V, Nb) are stabilized with co-doping of alkali elements. Na{sup 1+}/K{sup 1+} doping at Sr{sup 2+}-site is found to be critical to form the d{sup 1} impurities at Fe-site. Experimentally, NaV doped SrM shows the intrinsic coercivity of ?5.4 kOe, which is ?300% enhancement compared to undoped SrM and comparable value to LaCo co-doped SrM. Finally, the spin-orbit coupling from non-vanishing angular momentum of d{sup 1} impurity in SrM should be a main factor for such a substantial improvement of intrinsic coercivity.

Ahn, Kyunghan, E-mail: kyunghan.ahn@samsung.com; Ryu, Byungki; Korolev, Dmitry; Jae Kang, Young [Materials R and D Center, Samsung Advanced Institute of Technology, Yongin-si, Gyeonggi-do 446-712 (Korea, Republic of)] [Materials R and D Center, Samsung Advanced Institute of Technology, Yongin-si, Gyeonggi-do 446-712 (Korea, Republic of)

2013-12-09T23:59:59.000Z

242

COMPLETELY RANK-NONINCREASING LINEAR MAPS Don Hadwin and David Larson  

E-Print Network [OSTI]

and completely positive and completely bounded. The theorems of W. Stinespring [12] and Wittstock [14] say

Larson, David R.

243

Linda A. Cohen, At Large, Chair David M. Larson, Congressional District 3,  

E-Print Network [OSTI]

Department; Professor, Animal Science and Equine Science DeMuth, David, Ph.D., Associate Professor, Physics and Software Engineering Dingmann, Brian, Ph.D., Associate Professor, Biology, Environmental Sciences, and Health Sciences Dingmann, Melissa, M.Ed., Director of Student Financial Aid Elf, Pamela, Ph.D., Associate

Amin, S. Massoud

244

Larson,Cheryl A * PS·6 From: Roberts,Timothy C - PGL-5  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: VegetationEquipment Surfaces and Interfaces Sample6, 2011 CERN 73-11Large areaLargefor Dr.

245

Rock Sampling At San Juan Volcanic Field Area (Larson & Jr, 1986) | Open  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExplorationUT-g Grant ofRichardton Abbey Wind Farm It is classified asOpen

246

Compound and Elemental Analysis At Seven Mile Hole Area (Larson, Et Al.,  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of InspectorConcentratingRenewable Solutions LLC Jump to: navigation, search(Thompson, 1985)Al.,

247

Rock Sampling At Seven Mile Hole Area (Larson, Et Al., 2009) | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia:FAQ < RAPID Jump to: navigation, searchVirginia BlueRiverwoods, Illinois:239178°,isWind FarmInformation

248

Isotopic Analysis At Seven Mile Hole Area (Larson, Et Al., 2009) | Open  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to:46 - 429 Throttled (botOpen Energy Information 2006)EnergyInformationEnergy

249

U.S. Energy Secretary Steven Chu, U.S. Representatives Larson and Courtney  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Delicious Rank EERE:YearRound-Up from theDepartment of Dept. of Energy, Office of Civil Rights,Efficiencyto Visit

250

Field Mapping At Seven Mile Hole Area (Larson, Et Al., 2009) | Open Energy  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 NoSanEnergy InformationInformation 4) Jump

251

Isotopic Analysis At San Juan Volcanic Field Area (Larson & Jr, 1986) |  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision hasInformation Earth's Heat JumpInc Place: EdenOverview OfIowa/IncentivesEnergyOpen Energy

252

Penn State Hybrid and Hydrogen Vehicle Research Laboratory The Larson Transportation Institute (LTI)  

E-Print Network [OSTI]

on the internal combustion engine and fossil fuels to "greener" fuel cell and hybrid electric technology: · Vehicle integration and control expertise; · Alternative fuel infrastructure including hydrogen, LNG; · Vehicle test track and dynamometer facilities; · Vehicle fabrication facilities; and · Fuel cell

Lee, Dongwon

253

Eric D. Larson July 8, 1994 Summary Report on Visit to Cuba  

E-Print Network [OSTI]

look at the Museumof the Revolution, a viewing of the 300-yeartradition of the daily 9 p.m. canonf utility branch), Lic. Julio Torres (MEPLAN), and Dr. Antonio Valdes (MCTE). This "task force" appeared

254

Neutron imaging of alkali metal heat pipes  

SciTech Connect (OSTI)

High-temperature heat pipes are two-phase, capillary driven heat transfer devices capable of passively providing high thermal fluxes. Such a device using a liquid-metal coolant can be used as a solution for successful thermal management on hypersonic flight vehicles. Imaging of the liquid-metal coolant inside will provide valuable information in characterizing the detailed heat and mass transport. Neutron imaging possesses an inherent advantage from the fact that neutrons penetrate the heat pipe metal walls with very little attenuation, but are significantly attenuated by the liquid metal contained inside. Using the BT-2 beam line at the National Institute of Standards and Technology (NIST) in Gaithersburg, Maryland, preliminary efforts have been conducted on a nickel-sodium heat pipe. The contrast between the attenuated beam and the background is calculated to be approximately 3%. This low contrast requires sacrifice in spatial or temporal resolution so efforts have since been concentrated on lithium (Li) which has a substantially larger neutron attenuation cross section. Using the CG-1D beam line at the High Flux Isotope Reactor (HFIR) of Oak Ridge National Laboratory (ORNL) in Oak Ridge, Tennessee, the first neutron images of high-temperature molybdenum (Mo)-Li heat pipes have been achieved. The relatively high neutron cross section of Li allows for the visualization of the Li working fluid inside the heat pipes. The evaporator region of a gravity assisted cylindrical heat pipe prototype 25 cm long was imaged from start-up to steady state operation up to approximately 900 C. In each corner of the square bore inside, the capillary action raises the Li meniscus above the bulk Li pool in the evaporator region. As the operational temperature changes, the meniscus shapes and the bulk meniscus height also changes. Furthermore, a three-dimensional tomographic image is also reconstructed from the total of 128 projection images taken 1.4o apart in which the Li had already cooled and solidified.

Kihm, Ken [University of Tennessee, Knoxville (UTK); Kirchoff, Eric [University of Tennessee, Knoxville (UTK); Golden, Matt [University of Tennessee, Knoxville (UTK); Rosenfeld, J. [Thermacore Inc.; Rawal, S. [Lockheed Martin Space Systems Company; Pratt, D. [United States Air Force Research Laboratory, Wright-Patterson Air Force Base; Bilheux, Hassina Z [ORNL; Walker, Lakeisha MH [ORNL; Voisin, Sophie [ORNL; Hussey, Dan [NIST Center for Neutron Research (NCRN), Gaithersburg, MD

2013-01-01T23:59:59.000Z

255

Membrane Cells in Chlor Alkali Application  

E-Print Network [OSTI]

cannot reject have to be very low, e.g., Ca/Mg contamination in the chloralkali cells are originated fwm salt (e.g., Ca, Mg, S04, AI, I), water and the used hardware. To prevent the electrolysis from any impurities... t:xisting transformerlrectifier Maximum reuse of the existing systems, e.g. the brine system Minimum space requirement Mininlllin proJuction loss during conversions Low investment costs for: ? Electrolyzer bypass switches ? BusbaIs ? Cell...

Lesker, K.

256

Thermal degradation of cellulose in alkali  

SciTech Connect (OSTI)

Biomass in an alkaline aqueous slurry can be liquefied by heat and pressure. Understanding the mechanisms of biomass liquefaction to improve the efficiency of converting biomass to useful products, particularly chemicals and synthetic fuels is discussed. To study the chemical mechanisms of this process, pure cellulose, the main component of biomass, was liquefied. The 78 cellulose liquefaction products that were identified by gas chromatography/mass spectrometry include polyols, furans, ketones, hydrocarbons, and aromatic compounds. Polyols may be formed by hydrogenolytic cleavage. Furans an cyclic ketones may be cyclization products of dicarbonyl intermediates formed by aldol condensation of small initial degradation products such as acetone and acrolein. Several of these small carbonyl compounds were used as model compounds to test proposed mechanisms for furans and cyclic ketones and obtained products supporting five of the mechanisms. For the best case of 26 cellulose liquefaction experiments, 34% of the initial mass of the cellulose was converted to acetone-soluble oil with a heat of combustion of 14,000 Btu/lb.

Miller, R.K.; Molton, P.M.; Russell, J.A.

1980-12-01T23:59:59.000Z

257

Alkali solution treatment on sandstone cores  

E-Print Network [OSTI]

was used for filtering the solution before the injection into the core. Hassler-t e Core Holder A stainless steel core holder was used to hold the core for treatment with the solutions. The core sample was positioned in the center of the core holder... and heat the water in the flask. Electric Heatin Ta e A silicone rubber embedded flexible heating tape was used to wrap the core holder to heat the core sample to the desired temperature. The maximum 0 continuous operating temperature of the tape...

Lee, Suk Jin

2012-06-07T23:59:59.000Z

258

A general formula for non-cohesive bed load sediment transport Benoi^t Camenen), Magnus Larson  

E-Print Network [OSTI]

Department of Water Resources Engineering, Lund University, Box 118, S-221 00 Lund, Sweden Received 10 May Shields parameter to the power 1.5 was first confirmed for the steady flows. An exponential factor to take for the two half-periods of the wave (when the total instantaneous velocity u is in the direction of the wave

US Army Corps of Engineers

259

Fischer-Tropsch Fuels from Coal and Biomass Thomas G. Kreutz, Eric D. Larson, Guangjian Liu, Robert H. Williams  

E-Print Network [OSTI]

...................................................................................................................................8 2.2.2 Biomass as feedstock

260

New hypodiphosphates of the alkali metals: Synthesis, crystal structure and vibrational spectra of the hypodiphosphates(IV) M{sub 2}[(H{sub 2}P{sub 2}O{sub 6})(H{sub 4}P{sub 2}O{sub 6})] (M=Rb and Cs)  

SciTech Connect (OSTI)

The new hypodiphosphates(IV) Rb{sub 2}[(H{sub 2}P{sub 2}O{sub 6})(H{sub 4}P{sub 2}O{sub 6})] (1) and Cs{sub 2}[(H{sub 2}P{sub 2}O{sub 6})(H{sub 4}P{sub 2}O{sub 6})] (2) were synthesized by soft chemistry reactions from aqueous solutions of hypophosphoric acid and the corresponding heavy alkali-metal carbonates. Their crystal structures were determined by single crystal X-ray diffraction. Both compounds crystallize isotypic in the triclinic space group P-1 with one formula unit in the unit cell. The structures are built up by discrete (H{sub 2}P{sub 2}O{sub 6}){sup 2-} and (H{sub 4}P{sub 2}O{sub 6}) units in staggered conformation for the P{sub 2}O{sub 6} skeleton and the corresponding alkali-metal cations. In the (H{sub 2}P{sub 2}O{sub 6}){sup 2-} ion the hydrogen atoms are in a 'trans-trans' conformation. O{center_dot}H-O hydrogen bonds between the (H{sub 2}P{sub 2}O{sub 6}){sup 2-} and (H{sub 4}P{sub 2}O{sub 6}) groups consolidate the structures into a three-dimensional network. The FT-Raman and {sup 31}P and {sup 1}H and MAS NMR spectra of the title compounds have been recorded and interpreted, especially with respect to their assignment to the (H{sub 2}P{sub 2}O{sub 6}){sup 2-} and (H{sub 4}P{sub 2}O{sub 6}) groups. Thermogravimetric data of 2 have been interpreted in terms of a thermal decomposition model. - Graphical Abstract: The layered compounds Rb{sub 2}[(H{sub 2}P{sub 2}O{sub 6})(H{sub 4}P{sub 2}O{sub 6})] and Cs{sub 2}[(H{sub 2}P{sub 2}O{sub 6})(H{sub 4}P{sub 2}O{sub 6})] have been synthesized and investigated. Both crystallize isotypic. The structures are built up by discrete (H{sub 2}P{sub 2}O{sub 6}){sup 2-} and (H{sub 4}P{sub 2}O{sub 6}) units and the corresponding alkali-metal cations. Highlights: Black-Right-Pointing-Pointer Synthesis and single-crystal structure of new alkali hypodiphosphates. Black-Right-Pointing-Pointer Structures are characterized by [(H{sub 2}P{sub 2}O{sub 6})(H{sub 4}P{sub 2}O{sub 6})]{sup 2-} units and M{sup +} cations. Black-Right-Pointing-Pointer (H{sub 2}P{sub 2}O{sub 6}){sup 2-} and (H{sub 4}P{sub 2}O{sub 6}) units are linked by short hydrogen bonds. Black-Right-Pointing-Pointer Both compounds are characterized by {sup 31}P MAS-NMR spectra.

Wu, Peng [Institut fuer Anorganische und Analytische Chemie der TU Clausthal, Paul-Ernst-Strasse 4, D-38678 Clausthal-Zellerfeld (Germany)] [Institut fuer Anorganische und Analytische Chemie der TU Clausthal, Paul-Ernst-Strasse 4, D-38678 Clausthal-Zellerfeld (Germany); Wiegand, Thomas; Eckert, Hellmut [Institut fuer Physikalische Chemie and Graduate School of Chemistry, Westfaelische Wilhelms-Universitaet Muenster, Corrensstr. 28/30, D-48149 Muenster (Germany)] [Institut fuer Physikalische Chemie and Graduate School of Chemistry, Westfaelische Wilhelms-Universitaet Muenster, Corrensstr. 28/30, D-48149 Muenster (Germany); Gjikaj, Mimoza, E-mail: mimoza.gjikaj@tu-clausthal.de [Institut fuer Anorganische und Analytische Chemie der TU Clausthal, Paul-Ernst-Strasse 4, D-38678 Clausthal-Zellerfeld (Germany)] [Institut fuer Anorganische und Analytische Chemie der TU Clausthal, Paul-Ernst-Strasse 4, D-38678 Clausthal-Zellerfeld (Germany)

2012-10-15T23:59:59.000Z

Note: This page contains sample records for the topic "larson garnet alkali" 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

GARNET : a Graphical Attack graph and Reachability Network Evaluation Tool  

E-Print Network [OSTI]

Attack graphs are valuable tools in the assessment of network security, revealing potential attack paths an adversary could use to gain control of network assets. Creating an effective visualization for attack graphs is ...

Williams, Leevar (Leevar Christoff)

2008-01-01T23:59:59.000Z

262

Ogden, Williams and Larson, Toward a Hydrogen-Based Transportation System, final draft, 8 May 2001 Toward a Hydrogen-Based Transportation System  

E-Print Network [OSTI]

................................................................................................................11 A Strategy for Pursuing Hydrogen Fuel Cell Vehicles as a Long-Term Option ..............................................................12 Gasoline as an Initial Fuel for Fuel Cell Vehicles...............................................................................................................14 Hydrogen as an Initial Fuel for Fuel Cell Vehicles

263

Monolithic integrated tunable transmitters Y. A. Akulova, G. A. Fish, H. Xu, E. Hall, M. C. Larson, P. Abraham, H. Marchand, C. Turner, C. Coldren,  

E-Print Network [OSTI]

, P. Abraham, H. Marchand, C. Turner, C. Coldren, E. Hegblom, T. A. Strand, and L. A. Coldren Agility

Coldren, Larry A.

264

alkali carbonate melts: Topics by E-print Network  

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

8 Glass Transition and Melting Behavior of Carbon Fiber Reinforced Thermoplastic Composite, Studied by Materials Science Websites Summary: Glass Transition and Melting...

265

Mechanical Properties of Alkali Resistant Glass Fabric Composites  

E-Print Network [OSTI]

of research experience in civil engineering materials. He is a member of American Concrete Institute University. She is an independent consultant for Stealth Management Group, LLC focusing on construction, planning and development of hotels and other commercial projects. Corina-Maria Aldea is senior materials

Mobasher, Barzin

266

Raman Analysis of Perrhenate and Pertechnetate in Alkali Salts...  

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at high additions of the source chemical, since Na is more prevalent in the glass and ion exchange takes place. These results have significance to immobilization of nuclear...

267

NOvel Refractory Materials for High Alkali, High Temperature Environments  

SciTech Connect (OSTI)

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

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

2011-08-30T23:59:59.000Z

268

Structure parameter correlations on alkali-alcohol treated lignite  

SciTech Connect (OSTI)

The solubility of the Tuncbilek Lignite is increased up to 100%, on daf. basis, after KOH-Benz-hydrol treatment. Meanwhile its oxygen, sulphur and ash contents are decreased considerably. It has been shown that the solubility, H/C and S/C ratios, as well as the sulphur content of the coal are well correlated with the hydrogen transferred from benzhydrol, whereas the oxygen contact does not. The oxygen content correlate with the ash content. A reductive elimination mechanism is suggested for the removal of the heteroatoms, which also cause the degradation and the increase of the solubility of the coal.

Balcioglu, N.; Yilmaz, M.

1989-01-01T23:59:59.000Z

269

The fate of alkali species in advanced coal conversion systems  

SciTech Connect (OSTI)

The fate of species during coal combustion and gasification was determined experimentally in a fluidized bed reactor. A molecular-beam sampling mags spectrometer was used to identify and measure the concentration of vapor phase sodium species in the high temperature environment. Concurrent collection and analysis of the ash established the distribution of sodium species between gas-entrained and residual ash fractions. Two coals, Beulah Zap lignite and Illinois No. 6 bituminous, were used under combustion and gasification conditions at atmospheric pressure. Steady-state bed temperatures were in the range 800--950[degree]C. An extensive calibration procedure ensured that the mass spectrometer was capable of detecting sodium-containing vapor species at concentrations as low as 50 ppb. In the temperature range 800[degree] to 950[degree]C, the concentrations of vapor phase sodium species (Na, Na[sub 2]O, NaCl, and Na[sub 2]SO[sub 4]) are less than 0.05 ppm under combustion conditions with excess air. However, under gasification conditions with Beulah Zap lignite, sodium vapor species are present at about 14 ppm at a temperature of 820[degree]. Of this amount, NaCl vapor constitutes about 5 ppm and the rest is very likely NAOH. Sodium in the form of NaCl in coal enhances the vaporization of sodium species during combustion. Vapor phase concentration of both NaCl and Na[sub 2]SO[sub 4] increased when NaCl was added to the Beulah Zap lignite. Ash particles account for nearly 100% of the sodium in the coal during combustion in the investigated temperature range. The fine fly-ash particles (<10 [mu]m) are enriched in sodium, mainly in the form of sodium sulfate. The amount of sodium species in this ash fraction may be as high as 30 wt % of the total sodium. Sodium in the coarse ash particle phase retained in the bed is mainly in amorphous forms.

Krishnan, G.N.; Wood, B.J.

1991-11-01T23:59:59.000Z

270

alkali silica reactions: Topics by E-print Network  

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method, the recently developed pin-drying method for producing high-refractive-index aerogels with high transparency was studied in detail. Optical qualities and large tile...

271

alkali silica reaction: Topics by E-print Network  

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

method, the recently developed pin-drying method for producing high-refractive-index aerogels with high transparency was studied in detail. Optical qualities and large tile...

272

Ultracold chemistry with alkali-metal-rare-earth molecules  

E-Print Network [OSTI]

A first principles study of the dynamics of $^6$Li($^{2}$S) + $^6$Li$^{174}$Yb($^2\\Sigma^+$)$ \\to ^6$Li$_2(^1\\Sigma^+$) + $^{174}$Yb($^1$S) reaction is presented at cold and ultracold temperatures. The computations involve determination and analytic fitting of a three-dimensional potential energy surface for the Li$_2$Yb system and quantum dynamics calculations of varying complexities, ranging from exact quantum dynamics within the close-coupling scheme, to statistical quantum treatment, and universal models. It is demonstrated that the two simplified methods yield zero-temperature limiting reaction rate coefficients in reasonable agreement with the full close-coupling calculations. The effect of the three-body term in the interaction potential is explored by comparing quantum dynamics results from a pairwise potential that neglects the three-body term to that derived from the full interaction potential. Inclusion of the three-body term in the close-coupling calculations was found to reduce the limiting rate coefficients by a factor of two. The reaction exoergicity populates vibrational levels as high as $v=19$ of the $^6$Li$_2$ molecule in the limit of zero collision energy. Product vibrational distributions from the close-coupling calculations reveal sensitivity to inclusion of three-body forces in the interaction potential. Overall, the results indicate that a simplified model based on the long-range potential is able to yield reliable values of the total reaction rate coefficient in the ultracold limit but a more rigorous approach based on statistical quantum or quantum close-coupling methods is desirable when product rovibrational distribution is required.

C. Makrides; J. Hazra; G. B. Pradhan; A. Petrov; B. K. Kendrick; T. Gonzlez-Lezana; N. Balakrishnan; S. Kotochigova

2014-10-28T23:59:59.000Z

273

Evaluation of Alkali Bromide Salts for Potential Pyrochemical Applications  

SciTech Connect (OSTI)

Transient techniques were employed to study the electrochemical behavior, reduction mechanism and transport properties of REBr3 (RE - La, Nd and Gd) in pure LiBr, LiBr-KBr (eutectic) and LiBr-KBr-CsBr (eutectic) melts. Gd(III) showed a reversible single step soluble-insoluble exchange phenomenon in LiBr melt at 973K. Although La (III), Nd(III) and Gd(III) ions showed reversible behavior in eutectic LiBr-KBr melts, these ions showed a combination of temperature dependent reversible and pseudo-reversible behavior. While both La(III) and Gd(III) showed one step reduction, the reduction of Nd(III) was observed to be a two step process. La metal could be electrodeposited from the ternary electrolyte at a temperature of 673K. Various electrochemical measurements suggest that both binary and ternary bromide melts can potentially be used to electrodeposit high purity RE metals at comparatively lower operating temperatures.

Prabhat K. Tripathy; Steven D. Herrmann; Guy L. Fredrickson; Tedd E. Lister; Toni Y. Gutknecht

2013-10-01T23:59:59.000Z

274

alkali metal salt: Topics by E-print Network  

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of each system, these reports can facilitate the evaluation of effective means of pollution control by those involved in metal finishing wastewater pollution control....

275

alkali metal salts: Topics by E-print Network  

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

of each system, these reports can facilitate the evaluation of effective means of pollution control by those involved in metal finishing wastewater pollution control....

276

Characterization of Selective Binding of Alkali Cations with...  

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comprises a main chamber, detector, liquid microjet, skimmer, liquid nitrogen traps, turbo pumps, and a differential pump section (not shown here). A density functional theory...

277

Near-threshold photodetachment of heavy alkali-metal anions  

SciTech Connect (OSTI)

We calculate near-threshold photodetachment cross sections for Rb{sup -}, Cs{sup -}, and Fr{sup -} using the Pauli equation method with a model potential describing the effective electron-atom interaction. Parameters of the model potential are fitted to reproduce ab initio scattering phase shifts obtained from Dirac R-matrix calculations. Special care is taken to formulate the boundary conditions near the atomic nucleus for solving the Pauli equation, based on the analytic solution of the Dirac equation for a Coulomb potential. We find a {sup 3}P{sub 1}{sup o} resonance contribution to the photodetachment cross section of Rb{sup -}, Cs{sup -}, and Fr{sup -} ions. Our calculated total photodetachment cross sections for Cs agree with experiments after tuning the resonance position by 2.4 meV. For Rb{sup -} and Fr{sup -} the resonance contribution is much smaller than for Cs. We therefore also provide angle-differential cross sections and asymmetry parameters which are much more sensitive to the resonant contribution than total cross sections.

Bahrim, C.; Thumm, U.; Khuskivadze, A.A.; Fabrikant, I.I. [Department of Physics, Kansas State University, Manhattan, Kansas 66506-2604 (United States); Department of Chemistry and Physics, Lamar University, Beaumont, Texas 77710-10046 (United States); Department of Physics, Kansas State University, Manhattan, Kansas 66506-2604 (United States); Department of Physics and Astronomy, University of Nebraska, Lincoln, Nebraska 68588-0111 (United States)

2002-11-01T23:59:59.000Z

278

Surfactant-enhanced alkaline flooding with weak alkalis  

SciTech Connect (OSTI)

The objective of Project BE4B in FY90 was to develop cost-effective and efficient chemical flooding formulations using surfactant-enhanced, lower pH (weak) alkaline chemical systems. Chemical systems were studied that mitigate the deleterious effects of divalent ions. The experiments were conducted with carbonate mixtures and carbonate/phosphate mixtures of pH 10.5, where most of the phosphate ions exist as the monohydrogen phosphate species. Orthophosphate did not further reduce the deleterious effect of divalent ions on interfacial tension behavior in carbonate solutions, where the deleterious effect of the divalent ions is already very low. When added to a carbonate mixture, orthophosphate did substantially reduce the adsorption of an atomic surfactant, which was an expected result; however, there was no correlation between the amount of reduction and the divalent ion levels. For acidic oils, a variety of surfactants are available commercially that have potential for use between pH 8.3 and pH 9.5. Several of these surfactants were tested with oil from Wilmington (CA) field and found to be suitable for use in that field. Two low-acid crude oils, with acid numbers of 0.01 and 0.27 mg KOH/g of oil, were studied. It was shown that surfactant-enhanced alkaline flooding does have merit for use with these low-acid crude oils. However, each low-acid oil tested was found to behave differently, and it was concluded that the applicability of the method must be experimentally determined for any given low-acid crude oil. 19 refs., 10 figs. 4 tabs.

French, T.R.; Josephson, C.B.

1991-02-01T23:59:59.000Z

279

alkali metal cations: Topics by E-print Network  

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

gas-solid chromatographic model studied in Ja. In JSV appears a more general model of isotherm ( uid Seplveda, Mauricio 279 Visual Exploration of Uncertainty in...

280

alkali metal cation: Topics by E-print Network  

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

gas-solid chromatographic model studied in Ja. In JSV appears a more general model of isotherm ( uid Seplveda, Mauricio 279 Visual Exploration of Uncertainty in...

Note: This page contains sample records for the topic "larson garnet alkali" 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

alkali metal vapors: Topics by E-print Network  

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

deposition onto micro- and nanopowders14 and coating of nanoparticle films15 as well as aerogel coating of porous materials that exhibit ultrahigh-aspect ratios.12,13 To date,...

282

alkali metal vapor: Topics by E-print Network  

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

deposition onto micro- and nanopowders14 and coating of nanoparticle films15 as well as aerogel coating of porous materials that exhibit ultrahigh-aspect ratios.12,13 To date,...

283

alkali borate glasses: Topics by E-print Network  

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

with two laser beams. In this regime, the two-photon detuning from the Raman resonance controls Yavuz, Deniz First Page Previous Page 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17...

284

alkali vapor cells: Topics by E-print Network  

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

THE POROUS SILICON PROCESS APPLYING CONVECTION for the first time to monocrystalline Si thin-film solar cells from the porous silicon (PSI) layer transfer for manufacturing high...

285

Diode-Pumped Alkali Laser: A New Combination  

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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phasesData FilesShape,PhysicsDileep SinghStockpile Stewardship

286

Characterization of Selective Binding of Alkali Cations with Carboxylate  

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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group and User ExecutiveCentralDepartmentSynchrotron

287

Characterization of Selective Binding of Alkali Cations with Carboxylate  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc DocumentationP-Series to User Group and User

288

Tuning of the Metal-Insulator Transition via Alkali Adsorption  

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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsrucLas ConchasPassiveSubmittedStatusButlerTransportation6/14/11 Page 1 of 17 PrintedLabTunableTuning

289

Characterization of Selective Binding of Alkali Cations with Carboxylate  

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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheir Atmospheric Impacts. | EMSL Organic

290

Characterization of Selective Binding of Alkali Cations with Carboxylate  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheir Atmospheric Impacts. | EMSL

291

Characterization of Selective Binding of Alkali Cations with Carboxylate  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheir Atmospheric Impacts. | EMSLCharacterization of

292

Characterization of Selective Binding of Alkali Cations with Carboxylate  

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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation SitesStandingtheir Atmospheric Impacts. | EMSLCharacterization

293

Polyanionic Polymers with High Alkali-Ion Conductivity and Wide  

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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security Administration the1 - September 2006Photovoltaic TheoryPlantElectrodes. | EMSL

294

Tuning of the Metal-Insulator Transition via Alkali Adsorption  

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atoms easily give away their loosely bound outermost electron. "Correlated Electron" Technology Illumination at the flick of a switch. Instant communication across vast distances....

295

Hydrogen Release Studies of Alkali Metal Amidoboranes. | EMSL  

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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsingFun withconfinementEtching. | EMSL Bubbles and

296

A Primitive Alkali Basaltic Stratovolcano And Associated Eruptive Centres,  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 NoPublic Utilities Address: 160 East 300 SouthWater Rights, Substantive(Sichuan, SwOpen EnergyNorthwestern

297

Gabbs Alkali Flat Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, search Equivalent URIFrontier,Jump to:Wilmette,TransportYuasaGV1 SolarJump

298

Tuning of the Metal-Insulator Transition via Alkali Adsorption  

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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2TopoPortalBRDFTunable Thermal Link8 AliMPI

299

Tuning of the Metal-Insulator Transition via Alkali Adsorption  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2TopoPortalBRDFTunable Thermal Link8 AliMPITuning of

300

Tuning of the Metal-Insulator Transition via Alkali Adsorption  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear SecurityTensile Strain Switched Ferromagnetism in Layered NbS2TopoPortalBRDFTunable Thermal Link8 AliMPITuning

Note: This page contains sample records for the topic "larson garnet alkali" 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

Cubic Ionic Conductor Ceramics for Alkali Ion Batteries - Energy Innovation  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmospheric Optical Depth7-1D: Vegetation Proposed Newcatalyst phases on &gamma;-Al2O3.WinterCrystalApplications | EnergyPortal

302

Gabbs Alkali Flat Geothermal Area | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6TheoreticalFuelCell Energy IncFOR EGSGWPS Global WindGabbs

303

Study of Ion Specific Interactions of Alkali Cations with Dicarboxylate  

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AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystalline Gallium Oxide ThinIon Cooling and Ejection from Two Stage

304

A Primitive Alkali Basaltic Stratovolcano And Associated Eruptive...  

Open Energy Info (EERE)

mountain cappings represent earlier volcanism (2.5-11.5 Ma), also probably a result of thermal disturbance related to nearby ocean-floor spreading. Geothermobarometry...

305

alkali metal hydroxide: Topics by E-print Network  

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

to sustainable development. Particular issues considered include: current metal reserves and how these may change in the future, some of the environmental impacts (Total...

306

alkali metal hydroxides: Topics by E-print Network  

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

to sustainable development. Particular issues considered include: current metal reserves and how these may change in the future, some of the environmental impacts (Total...

307

alkali metal iodides: Topics by E-print Network  

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

to sustainable development. Particular issues considered include: current metal reserves and how these may change in the future, some of the environmental impacts (Total...

308

alkali metal mole: Topics by E-print Network  

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

to sustainable development. Particular issues considered include: current metal reserves and how these may change in the future, some of the environmental impacts (Total...

309

PLUTONIUM SOLUBILITY IN HIGH-LEVEL WASTE ALKALI BOROSILICATE GLASS  

SciTech Connect (OSTI)

The solubility of plutonium in a Sludge Batch 6 (SB6) reference glass and the effect of incorporation of Pu in the glass on specific glass properties were evaluated. A Pu loading of 1 wt % in glass was studied. Prior to actual plutonium glass testing, surrogate testing (using Hf as a surrogate for Pu) was conducted to evaluate the homogeneity of significant quantities of Hf (Pu) in the glass, determine the most appropriate methods to evaluate homogeneity for Pu glass testing, and to evaluate the impact of Hf loading in the glass on select glass properties. Surrogate testing was conducted using Hf to represent between 0 and 1 wt % Pu in glass on an equivalent molar basis. A Pu loading of 1 wt % in glass translated to {approx}18 kg Pu per Defense Waste Processing Facility (DWPF) canister, or about 10X the current allowed limit per the Waste Acceptance Product Specifications (2500 g/m{sup 3} of glass or about 1700 g/canister) and about 30X the current allowable concentration based on the fissile material concentration limit referenced in the Yucca Mountain Project License Application (897 g/m{sup 3}3 of glass or about 600 g Pu/canister). Based on historical process throughput data, this level was considered to represent a reasonable upper bound for Pu loading based on the ability to provide Pu containing feed to the DWPF. The task elements included evaluating the distribution of Pu in the glass (e.g. homogeneity), evaluating crystallization within the glass, evaluating select glass properties (with surrogates), and evaluating durability using the Product Consistency Test -- Method A (PCT-A). The behavior of Pu in the melter was evaluated using paper studies and corresponding analyses of DWPF melter pour samples.The results of the testing indicated that at 1 wt % Pu in the glass, the Pu was homogeneously distributed and did not result in any formation of plutonium-containing crystalline phases as long as the glass was prepared under 'well-mixed' conditions. The incorporation of 1 wt % Pu in the glass did not adversely impact glass viscosity (as assessed using Hf surrogate) or glass durability. Finally, evaluation of DWPF glass pour samples that had Pu concentrations below the 897 g/m{sup 3} limit showed that Pu concentrations in the glass pour stream were close to targeted compositions in the melter feed indicating that Pu neither volatilized from the melt nor stratified in the melter when processed in the DWPF melter.

Marra, J.; Crawford, C.; Fox, K.; Bibler, N.

2011-01-04T23:59:59.000Z

310

HELSINKI UNIVERSITY OF TECHNOLOGY ENE-47.153 Trace elements and alkaliTrace elements and alkali  

E-Print Network [OSTI]

elements in fossil - and waste-derived fuelsTrace elements in fossil - and waste-derived fuels Coal Peat Heavy fuel oil Pet coke MSW RDF Wood Waste wood Waste paper Scrap tyres Sew. sludge Hg 0.02-3 ~0.07 .153 Behaviour of trace elements in coalBehaviour of trace elements in coal combustion flue gasescombustion flue

Zevenhoven, Ron

311

Molecular Cell, Volume 23 Pulling on the Nascent RNA during  

E-Print Network [OSTI]

of Elongation or Ubiquitous Pausing Ravindra V. Dalal, Matthew H. Larson, Keir C. Neuman, Jeff Gelles, Robert

Block, Steven

312

Quarterly Biomass Program/Clean Cities State Web Conference:...  

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

larson.pdf More Documents & Publications Renewable Fuel Standards Program Update EISA 2007: Focus on Renewable Fuels Standard Program...

313

E-Print Network 3.0 - all-garnet magnetophotonic crystals Sample...  

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

... Source: Jonsson, Fredrik - Micronic Laser Systems; Zheludev, Nikolay - Optoelectronics Research Centre & School of Physics and Astronomy, University of Southampton...

314

Subducted oceanic crust as diamond hosts revealed by garnets of mantle xenoliths from Nyurbinskaya, Siberia  

E-Print Network [OSTI]

, Siberia Amy J.V. Riches a, , Yang Liu a , James M.D. Day b , Zdislav V. Spetsius c , Lawrence A. Taylor of the lithospheric mantle (e.g., Griffin et al., 1999a; Griffin and O'Reilly, 2007). Several early studies suggested

Perfect, Ed

315

Thermodynamic modelling of Cr-bearing garnets with implications for diamond inclusions and peridotite xenoliths  

E-Print Network [OSTI]

, Zrich, Switzerland e Geological Survey of Western Australia, Mineral House, 100 Plain Street, East Perth, WA 6004, Australia a b s t r a c ta r t i c l e i n f o Article history: Received 8 September 2008 using free energy minimization techniques. Here we present calculated phase relations in Cr-rich mantle

316

Super stable garnet ceramics may be ideal for high-energy lithium batteries  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr MayAtmosphericNuclear Security AdministrationcontrollerNanocrystalline Gallium OxideSumin Kim Sumin KimSunil K. Sinha,Super Separator|

317

Characterization of Ballistocardiogram Recorded at 1.5 and 3.0 Tesla in Simultaneous EEG-fMRI Zempel, J. M., Vincent, J. L., Larson-Prior, L. J., and Snyder, A. Z.  

E-Print Network [OSTI]

Characterization of Ballistocardiogram Recorded at 1.5 and 3.0 Tesla in Simultaneous EEG of BKG at 1.5 and 3.0 Tesla: ·3 subjects Experimental protocol: ·Functional images were simultaneously in the scanner (1.5 and 3 Tesla) with the same EEG equipment (amplifier, cap, cables) in consecutive sessions. ·3

Larson-Prior, Linda

318

E-Print Network 3.0 - alkali sulfate aerosol Sample Search Results  

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

Science Collection: Environmental Sciences and Ecology 87 BNL-65388-AB PROPERTIES OF AMMONIATED SULFATE AEROSOLS AT LOW TEMPERATURES Summary: BNL-65388-AB PROPERTIES OF AMMONIATED...

319

alkali-activated complex binders: Topics by E-print Network  

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

Logspace using only poly-logarithmically many be solved by a probabilistic log-space Turing Machines. There are many ways to view a probabilistic log-space to have a space...

320

A grid-level alkali liquid metal battery recycling process : design, implementation, and characterization  

E-Print Network [OSTI]

The application of liquid metal batteries for large scale grid-level energy storage is being enabled through the development of research conducted at the Massachusetts Institute of Technology (MIT) in 2006. A recycling ...

Thomas, Dale Arlington, III

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "larson garnet alkali" 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

E-Print Network 3.0 - alkali induced heave Sample Search Results  

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

Energy Storage, Conversion and Utilization 38 Simulations of a passively actuated oscillating airfoil using a Discontinuous Galerkin method Summary: of a pitching and...

322

E-Print Network 3.0 - alkali metal ln Sample Search Results  

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

Department, Department of Biology, University of Southern Maine; Zevenhoven, Ron - Heat Engineering Laboratory, bo Akademi University, Collection: Environmental Sciences and...

323

E-Print Network 3.0 - alkali atom vapor Sample Search Results  

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

a vapor cell magneto-optical trap. 1999 American... to the vacuum pumps or due to adsorption of the ... Source: Jin, Deborah - JILA, University of Colorado at Boulder...

324

Alkali-metal plasmons, pseudopotentials, and optical sum rules Paola Alippi  

E-Print Network [OSTI]

calculations of the optical properties of very small lithium clusters, also based on nonlocal pseudopotentials for a closer look at some nontrivial properties ofnon- local electron-ion interactions which are not peculiar and theoretical results on the optical absorption of lithium clusters, we reexamine some effects of the angular

325

Hydrogenation of Carbon Dioxide by Water: Alkali-Promoted Synthesis of Formate  

SciTech Connect (OSTI)

Conversion of carbon dioxide utilizing protons from water decomposition is likely to provide a sustainable source of fuels and chemicals in the future. We present here a time-evolved infrared reflection absorption spectroscopy (IRAS) and temperature-programmed desorption (TPD) study of the reaction of CO{sub 2} + H{sub 2}O in thin potassium layers. Reaction at temperatures below 200 K results in the hydrogenation of carbon dioxide to potassium formate. Thermal stability of the formate, together with its sequential transformation to oxalate and to carbonate, is monitored and discussed. The data of this model study suggest a dual promoter mechanism of the potassium: the activation of CO{sub 2} and the dissociation of water. Reaction at temperatures above 200 K, in contrast, is characterized by the absence of formate and the direct reaction of CO{sub 2} to oxalate, due to a drastic reduction of the sticking coefficient of water at higher temperatures.

Hrbek, J.; Hoffmann, F.M.; Yang, Y.; Paul, J.; White, M.G.

2010-07-15T23:59:59.000Z

326

TECHNOLOGY DATA FOR HIGH TEMPERATURE SOLID OXIDE ELECTROLYSER CELLS, ALKALI AND PEM ELECTROLYSERS  

E-Print Network [OSTI]

Højgaard Jensen Sune Dalgaard Ebbesen Publisher: Department of Development and Planning Aalborg University

Nielsen, Mads Pagh

327

New Alkali Doped Pillared Carbon Materials Designed to Achieve Practical Reversible Hydrogen Storage for Transportation  

E-Print Network [OSTI]

and room temperature. This satisfies the DOE (Department of Energy) target of hydrogen-storage materials single-wall nanotubes can lead to a hydrogen-storage capacity of 6.0 mass% and 61:7 kg=m3 at 50 bars of roughly 1­20 bars and ambient temperature. Chen et al. reported remarkable hydrogen-storage capacities

Goddard III, William A.

328

E-Print Network 3.0 - alkali hydroxide flux Sample Search Results  

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

5 (1995) 1491-1499 OCTOBER1995, PAGE1491 Classification Summary: In this paper, an electrochromic film grown by using DC sputtering and a novel target of nickel hydroxide... , the...

329

alkali heavy-ion reaction: Topics by E-print Network  

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

dynamics predicts substantial modifications of the kaon properties in a dense nuclear environment. The status of the theoretical predictions as well as experimental evidences...

330

Hybrid Optical Pumping of Optically Dense Alkali-Metal Vapor without Quenching Gas  

SciTech Connect (OSTI)

Optical pumping of an optically thick atomic vapor typically requires a quenching buffer gas, such as N{sub 2}, to prevent radiation trapping of unpolarized photons which would depolarize the atoms. We show that optical pumping of a trace contamination of Rb present in K metal results in a 4.5 times higher polarization of K than direct optical pumping of K in the absence of N{sub 2}. Such spin-exchange polarization transfer from optically thin species is useful in a variety of areas, including spin-polarized nuclear scattering targets and electron beams, quantum-nondemolition spin measurements, and ultrasensitive magnetometry.

Romalis, M. V. [Department of Physics, Princeton University, Princeton, New Jersey 08544 (United States)

2010-12-10T23:59:59.000Z

331

E-Print Network 3.0 - alkali metal thermoelectric Sample Search...  

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

requirements. By optimizing the geometry of each... of these coolers with optoelectronic devices should be possible. KEY WORDS: integratecl; thermionic; ... Source:...

332

E-Print Network 3.0 - alkali iodides lii Sample Search Results  

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

Collection: Mathematics 2 Influence of Different Iodide Salts on the Performance of Dye-Sensitized Solar Cells Containing Phosphazene-Based Nonvolatile Electrolytes Summary:...

333

Infrared spectra and structure of alkali-metal and alkaline-earth di-2-ethylhexylphosphates  

SciTech Connect (OSTI)

The types of coordination of the di-2-ethylhexylphosphate anion (X/sup -/) to M/sup +/ (M = Li, Na, K, Rb, Cs) and Mg/sup 2 +/ in solid salts and in their solutions in CCl/sub 4/ have been studied by IR spectroscopy (25-4000 cm/sup -1/). The combination LiX forms only polymers of type (I); NaX and KX form not only I, but also two types of monomers, (II) and (III), and RbX and CsX form practically only III and I to only a slight extent. The compound Mgx/sub 2/ forms linear polymeric molecules of the (MgX/sub 2/)/sub n/ type, in which the four oxygen atoms in the first coordination sphere of Mg/sup 2 +/ form a distorted tetrahedron. The forms CaX/sub 2/ and BaX/sub 2/ contain two or more inequivalent types of POO groups. The laws obtained for the variation of the types of coordination of POO groups to the M/sup +/ cation along the series from Li/sup +/ to Cs/sup +/ have been discussed in connection with the changes in the density of the charges on the M/sup +/ cations and their radii. It has been established that the interaction of the polymeric (LiX)/sub n/ molecules with pyridine (Py) results in the formation of short-chain (LiX 2Py)/sub n/ polymers and that the interaction in 100% pyridine results in the formation of long-chain polymers and monomeric molecules of type II. The properties of the salts studied and the corresponding carboxylates have been compared. The structure types are illustrated.

Stoyanov, E.S.; Mikhailov, V.A.; Popov, V.M.

1985-10-01T23:59:59.000Z

334

Estimation of alkali metal mole percent and weight of calcined solids for ICPP calcine  

SciTech Connect (OSTI)

An updated method is given for estimation of the weight of calcined solids and volume reduction factor for calcine, and mole percent sodium plus potassium in calcine produced from radioactive waste in a fluidized-bed calciner at the Idaho Chemical Processing Plant (ICPP). It incorporates new information on a calcine chemistry from a study by K. N. Brewer and G. F. Kessinger in which they determined the compounds formed during calcination by both high temperature thermodynamic equilibrium calculations and by analyses of pilot-plant calcines. An explanation of the assumptions made in the calculations, along with several example calculations and comparisons with the previous calculation methods are included. This method allows calculation of the heat generation rate and sodium content of the calcine, which are used to determine the suitability of the calcine for storage in the ICPP bin sets. Although this method accurately predicts the weight of calcine and mole percent Na + K for its intended purpose, the compounds predicted should only be used as a first approximation for other purposes since the calculation does not incorporate all of the compounds, such as mixed-metal oxides, which may form during calcination.

O`Brien, B.H.

1995-03-01T23:59:59.000Z

335

E-Print Network 3.0 - alkali mineral complex Sample Search Results  

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

of Geological Sciences, University of Manitoba Collection: Geosciences 44 Definitions CaX(s) + 90 Summary: Adsorption - surface complexation via a strong bond to a mineral...

336

alkali-doped helium nanodroplets: Topics by E-print Network  

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

Cold Compressor Units (CCU). This unit is based on a cryogenic axial-centrifugal compressor, running on ceramic ball bearings and driven by a variable-frequency electrical...

337

Characterization of selective binding of alkali cations with carboxylate by x-ray absorption spectroscopy  

E-Print Network [OSTI]

spectra measured for aqueous formate and acetate solutions containing lithium, sodium, and potassium 290 eV clearly indicate a preferential interaction of sodium versus potassium, which was less apparent interactions aqueous systems The discovery of the selective interactions between simple ions and proteins dates

Cohen, Ronald C.

338

Influence of bath composition on aluminum corrosion in alkali carbonate melt  

SciTech Connect (OSTI)

The influence of sodium (Na) additions with different chemical natures (sodium peroxide [Na[sub 2]O[sub 2

Sannikov, V.I.; Kudyakov, V.Y.; Nikitina, E.V.; Pankratov, A.A. (Russian Academy of Sciences, Ekaterinburg (Russian Federation). Inst. of High-Temperature Electrochemistry of Ural)

1994-08-01T23:59:59.000Z

339

Mineralogical phase analysis of alkali and sulfate bearing belite rich laboratory clinkers  

SciTech Connect (OSTI)

The activation of laboratory belite clinkers has been carried out by adding variable amounts of alkaline salts (K{sub 2}CO{sub 3}, Na{sub 2}CO{sub 3}), and/or SO{sub 3} as gypsum in the raw materials but keeping almost constant the main elements ratios, Ca/Si/Al/Fe. Quantitative phase analyses by the Rietveld method using high resolution synchrotron and strictly monochromatic CuK{alpha}{sub 1} laboratory X-ray powder diffraction data has been performed. Quantitative phase analysis results have been compared to validate the protocol using laboratory X-ray data. The agreement in the results is noteworthy, which indicates that good quantitative phase analyses can be obtained from laboratory X-ray powder data. Qualitative studies have confirmed that the addition of alkaline salts to raw mixtures promotes the stabilization, at room temperature, of the highest temperature polymorphs: {alpha}'{sub H}-C{sub 2}S and {alpha}-C{sub 2}S. Quantitative studies gave the phase assemblage for ten different laboratory belite clinkers. As an example, an active belite clinker with 1.0 wt.% of K{sub 2}O and 1.0 wt.% of Na{sub 2}O (amounts added to the raw mixtures) contains 8.5(3) wt.% of {beta}-C{sub 2}S, 21.2(3) wt.% of {alpha}'{sub H}-C{sub 2}S, 24.1(2) wt.% of {alpha}-C{sub 2}S, 18.9(3) wt.% of total C{sub 3}S, 17.3(2) wt.% of C{sub 3}A and 10.0(2) wt.% of C{sub 4}AF. A belite clinker with 0.8 wt.% SO{sub 3} (nominal loading) contains 60.7(1) wt.% of {beta}-C{sub 2}S, 6.7(2) wt.% of {alpha}'{sub H}-C{sub 2}S, 12.3(7) wt.% of C{sub 3}S, 9.1(2) wt.% of C{sub 3}A and 11.2(2) wt.% of C{sub 4}AF. Overall, quantitative phase analyses have shown that alkaline oxides stabilize {alpha}'{sub H}-C{sub 2}S and {alpha}-C{sub 2}S, sulfur stabilizes {beta}-C{sub 2}S, with a large unit cell volume, and the joint presence of alkaline oxides and sulfur promotes mainly the stabilization of the {alpha}'{sub H}-C{sub 2}S polymorph.

Morsli, Khadija [Departamento de Quimica Inorganica, Cristalografia y Mineralogia, Universidad de Malaga, 29071 Malaga (Spain); L.P.C.M. Departement de Chimie, Faculte des Sciences, Universite Chouaib Doukkali, El Jadida 24000 (Morocco); Torre, Angeles G. de la [Departamento de Quimica Inorganica, Cristalografia y Mineralogia, Universidad de Malaga, 29071 Malaga (Spain); Zahir, Mohammed [L.P.C.M. Departement de Chimie, Faculte des Sciences, Universite Chouaib Doukkali, El Jadida 24000 (Morocco); Aranda, Miguel A.G. [Departamento de Quimica Inorganica, Cristalografia y Mineralogia, Universidad de Malaga, 29071 Malaga (Spain)]. E-mail: g_aranda@uma.es

2007-05-15T23:59:59.000Z

340

E-Print Network 3.0 - alkali burn traumatic Sample Search Results  

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

- Waste-to-Energy Research and Technology Council (WTERT) Collection: Renewable Energy 26 APPLICATION FORM Directions for Rank Ordering Rotation Preferences Summary:...

Note: This page contains sample records for the topic "larson garnet alkali" 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

E-Print Network 3.0 - alkali metal thermal Sample Search Results  

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

Summary: , calcium hypochlorite, hydrogen fluoride (HF) Ammonium Nitrate acids, metal powders, flammable liquids... , sodium carbide, turpentine, finely divided metals...

342

E-Print Network 3.0 - alkali metals phase Sample Search Results  

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

Summary: , calcium hypochlorite, hydrogen fluoride (HF) Ammonium Nitrate acids, metal powders, flammable liquids... , sodium carbide, turpentine, finely divided metals...

343

E-Print Network 3.0 - alkali metal dimers Sample Search Results  

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

Summary: , calcium hypochlorite, hydrogen fluoride (HF) Ammonium Nitrate acids, metal powders, flammable liquids... , sodium carbide, turpentine, finely divided metals...

344

E-Print Network 3.0 - alkali metals final Sample Search Results  

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

Summary: , calcium hypochlorite, hydrogen fluoride (HF) Ammonium Nitrate acids, metal powders, flammable liquids... , sodium carbide, turpentine, finely divided metals...

345

E-Print Network 3.0 - alkali metal complexes Sample Search Results  

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

Summary: , calcium hypochlorite, hydrogen fluoride (HF) Ammonium Nitrate acids, metal powders, flammable liquids... , sodium carbide, turpentine, finely divided metals...

346

E-Print Network 3.0 - alkali metal extraction Sample Search Results  

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

Summary: , calcium hypochlorite, hydrogen fluoride (HF) Ammonium Nitrate acids, metal powders, flammable liquids... , sodium carbide, turpentine, finely divided metals...

347

Low temperature pyrolysis of black liquor and polymerization of products in alkali aqueous medium  

SciTech Connect (OSTI)

Atmospheric pressure pyrolysis for the production of liquids and gases from black liquor and its calcium salts and acidic precipitate have been carried out in a little stainless steel tube. Yields, sum of liquid and gas products, from black liquor and its calcium salts and acidic precipitate were 44.7%, 52.0% and 59.1% of dry basis respectively. The precipitates obtained from black liquor by acidifying with hydrochloric acid and passing carbon dioxide have been polymerized in aqueous acetone containing formaldehyde and ammonia, and converted a polymeric resin.

Demirbas, A. (Dept. of Chemical Education, Karadeniz Teknik Univ., Trabzon (TR)); Ucan, H. (Dept. of Chemistry, Selcuk Univ., Konya (TR))

1991-01-01T23:59:59.000Z

348

Ion-exchange selectivities of periderm and cuticular membranes toward alkali cations  

SciTech Connect (OSTI)

The ion-exchange selectivities of lithium, sodium, potassium, and cesium on isolated potato periderm (Solanum tuberosum) and pear fruit cuticular membranes were investigated; the general order of preference both for cation selectivities and ion-exchange capacities was lithium > sodium > potassium > cesium. The potato periderm and pear fruit cuticular membranes exhibited a behavior typical of ion-exchange resins of the weak acid type. At constant pH 7, the ion-exchange capacities of periderm and cuticular membranes increased with hydrated ionic radius, and also with increasing pH and neutral salt concentration, and decreased with crystal ionic radius. Counterion selectivities also exhibited the same behavior. The ion-exchange properties are discussed in terms of the structure and function of potato periderm and pear fruit cuticular membranes.

Ersoz, M. [Univ. of Selcuk, Konya (Turkey); Duncan, H.J. [Univ. of Glasgow, Scotland (United Kingdom)

1994-08-01T23:59:59.000Z

349

The fate of alkali species in advanced coal conversion systems. Final report  

SciTech Connect (OSTI)

The fate of species during coal combustion and gasification was determined experimentally in a fluidized bed reactor. A molecular-beam sampling mags spectrometer was used to identify and measure the concentration of vapor phase sodium species in the high temperature environment. Concurrent collection and analysis of the ash established the distribution of sodium species between gas-entrained and residual ash fractions. Two coals, Beulah Zap lignite and Illinois No. 6 bituminous, were used under combustion and gasification conditions at atmospheric pressure. Steady-state bed temperatures were in the range 800--950{degree}C. An extensive calibration procedure ensured that the mass spectrometer was capable of detecting sodium-containing vapor species at concentrations as low as 50 ppb. In the temperature range 800{degree} to 950{degree}C, the concentrations of vapor phase sodium species (Na, Na{sub 2}O, NaCl, and Na{sub 2}SO{sub 4}) are less than 0.05 ppm under combustion conditions with excess air. However, under gasification conditions with Beulah Zap lignite, sodium vapor species are present at about 14 ppm at a temperature of 820{degree}. Of this amount, NaCl vapor constitutes about 5 ppm and the rest is very likely NAOH. Sodium in the form of NaCl in coal enhances the vaporization of sodium species during combustion. Vapor phase concentration of both NaCl and Na{sub 2}SO{sub 4} increased when NaCl was added to the Beulah Zap lignite. Ash particles account for nearly 100% of the sodium in the coal during combustion in the investigated temperature range. The fine fly-ash particles (<10 {mu}m) are enriched in sodium, mainly in the form of sodium sulfate. The amount of sodium species in this ash fraction may be as high as 30 wt % of the total sodium. Sodium in the coarse ash particle phase retained in the bed is mainly in amorphous forms.

Krishnan, G.N.; Wood, B.J.

1991-11-01T23:59:59.000Z

350

E-Print Network 3.0 - alkali iodide molecules Sample Search Results  

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

to be benzyl ) 1.9 10-17 cm2 molecule-1... with toluene, benzyl iodide, benzyl chloride, and methyl benzyl ketene as benzyl precursors. Their series Source: Oehlschlaeger,...

351

The Effects of Using Alkali-Silica Reaction Affected Recycled Concrete Aggregate in Hot Mix Asphalt  

E-Print Network [OSTI]

-RCA in an HMA pavement were identified. Results obtained using accelerated laboratory conditions were extrapolated based on anticipated field conditions. Guidelines for the mitigation of potential distresses in HMA made with ASR-RCA are presented. v... through the Airfield Asphalt Pavement Technology Program. Finally, thanks to my mother and father for their encouragement and to my fianc?e for her patience and love. vii NOMENCLATURE AFB - Air Force Base AASHTO - American Association of State...

Geiger, Brian James

2011-10-21T23:59:59.000Z

352

E-Print Network 3.0 - alkali-silica reaction observed Sample...  

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

Source: Texas at Austin, University of - Center for Transportation Research Collection: Energy Storage, Conversion and Utilization 40 Achieving "Green" Concrete Through The Use...

353

Ab initio prediction of thermodynamics in alkali metal-air batteries  

E-Print Network [OSTI]

Electric vehicles ("EVs") require high-energy-density batteries with reliable cyclability and rate capability. However, the current state-of-the-art Li-ion batteries only exhibit energy densities near ~150 Wh/kg, limiting ...

Kang, ShinYoung

2014-01-01T23:59:59.000Z

354

Alkali salt ash formation during black liquor combustion at kraft recovery boilers  

SciTech Connect (OSTI)

Recovery boiler is an essential part of paper pulping process, where waste sludge called black liquor is burned for chemical recovery and energy production. This study was carried out at an operating industrial recovery boiler in Finland. Measurement of aerosol particles was carried out at bullnose level of furnace, at boiler exit, and at outlet of electrostatic precipitator (ESP). Aerosol mass size distributions in size range 0.02--50 {micro}m were measured with Berner type low pressure impactor (BLPI) operated with precyclone. BLPI samples were further analyzed with ion chromatography for water soluble Na, K, SO{sub 4}, and Cl. Particle morphology was studied with scanning electron microscopy (SEM). Phase composition of crystalline salts was measured with X-ray diffraction (XRD). Particles larger than 1 {micro}m were analyzed with computer controlled scanning electron microscopy (CCSEM) to derive particle composition classes. At ESP inlet mass size distribution was bimodal with a major mode at about 1.2 {micro}m and a minor mode at about 5 {micro}m (aerodynamic diameter). At ESP outlet the mass size distribution showed only one peak at about 1.2 {micro}m. Both submicron and supermicron particles were agglomerates formed from 0.3 to 0.5 {micro}m spherical primary particles. XRD analyses indicated that particles were crystalline with two phases of Na{sub 2}SO{sub 4} (thenardite and sodium sulphate) and K{sub 3}Na(SO{sub 4}){sub 2}. CCSEM results of individual particles larger than 1 {micro}m showed that 79 to 88 volume percent of particles contained mainly Na and S, 7 to 10 volume percent Na, K, and S with minor amount of particles containing Na, S, and Ca.

Mikkanen, P. Kauppinen, E.I.; Pyykoenen, J.; Jokiniemi, J.K. [VTT (Finland); Maekinen, M. [Finnish Meterological Inst., Helsinki (Finland)

1996-12-31T23:59:59.000Z

355

E-Print Network 3.0 - alkali activated fly Sample Search Results  

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

activated fly Page: << < 1 2 3 4 5 > >> 1 Technical Report Documentation Page 1. Report No. Summary: Concrete, Coal Combustion By-Products, Fly Ash, High-Volume Fly Ash Concrete,...

356

E-Print Network 3.0 - alkali promoted cobalt-molybdenum Sample...  

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

University Collection: Engineering 5 Technical Report Documentation Page 1. Report No. Summary: . Recipient's Catalog No. 5. Report Date July 2001, Rev. February 2006 4. Title and...

357

E-Print Network 3.0 - alkali-silica reaction gel Sample Search...  

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

for polymer- ization reactions. Preparation of 3,3'-Azobis(6-Amino- 1,2,4,5-Tetrazine) Michael A. Hiskey David Source: Los Alamos National Laboratory, Theoretical...

358

Green's Function Approach to B.E. Condensation in the Alkali Atoms  

E-Print Network [OSTI]

A new scheme has been proposed to solve the B.E. condenstates in terms of Green's function approach. It has been shown that the radial wave function of two interacting atoms, moving in a common harmonic oscillator potential modified by an effective interaction,satifies an integral equation whose kernel is separable.The solution of the integral equation can be written in terms of the harmonic oscillator wave functions. The ground state wave function of the system can be written in terms of these solutions. PACS numbers:03.75Fi,02.60Cb,32.80Pj

Mahendra Sinha Roy

2002-10-08T23:59:59.000Z

359

E-Print Network 3.0 - alkali borohydrides mbh4 Sample Search...  

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

hurdle for the use of sodium borohydride for automotive hydrogen Source: DOE Office of Energy Efficiency and Renewable Energy, Hydrogen, Fuel Cells and Infrastructure...

360

Method and system for producing lower alcohols. [Heteropolyatomic lead salt coated with alkali metal formate  

DOE Patents [OSTI]

It is an object of the present invention to provide an improved catalyst for the reaction of carbon monoxide with water to produce methanol and other lower alcohols. It is a further object to provide a process for the production of methanol from carbon monoxide and water in which a relatively inexpensive catalyst permits the reaction at low pressures. It is also an object to provide a process for the production of methanol from carbon monoxide and water in which a relatively inexpensive catalyst permits the reaction at low pressures. It is also an object to provide a process for the production of methanol in which ethanol is also directly produced. It is another object to provide a process for the production of mixtures of methanol with ethanol and propanol from the reaction of carbon monoxide and water at moderate pressure with inexpensive catalysts. It is likewise an object to provide a system for the catalytic production of lower alcohols from the reaction of carbon monoxide and water at moderate pressure with inexpensive catalysts. In accordance with the present invention, a catalyst is provided for the reaction of carbon monoxide and water to produce lower alcohols. The catalyst includes a lead heteropolyatomic salt in mixture with a metal formate or a precursor to a metal formate.

Rathke, J.W.; Klingler, R.J.; Heiberger, J.J.

1983-09-26T23:59:59.000Z

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


361

E-Print Network 3.0 - alkali-activated fly ash Sample Search...  

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

Engineering ; Materials Science 12 By-Products Utilization Summary: CONTAINING CLEAN-COAL ASH AND CLASS F FLY ASH By Tarun R. Naik, Rudolph N. Kraus, Rafat Siddique... of...

362

Synthesis of higher alcohols on copper catalysts supported on alkali-promoted basic oxides  

E-Print Network [OSTI]

-butyl-ether (MTBE) after isobutanol dehydration to form isobutene. An equimolar ratio of methanol to isobutanol would be preferred for MTBE synthesis. Methanol and higher alcohols can also be used for direct blending

Iglesia, Enrique

363

A comparison of the products of the hydrolysis of cottonseed meats with acid and alkali  

E-Print Network [OSTI]

Xae ~ Sew Yerky So To lpgp J po 554 (10) Ills, ~ii 1 Ol ~ ~ WS (19?) {11) S?Q?aaLhi, Siomhea4 5 ~, ~ 1 (1555) ~ Other ssi4s thea hy&rsohlorio sa& salfario qhat have book ass& fsr hy&rolyning prete1ns oro ferccio, ssotie, sad by&ref lasrio. Using... iatexpreting tho above stats- nsnt ~ each sf ths g elsssos ~ aside on4 bases, asst bo oonsi4oro& as a shale on4 aoi sny siaglo sei4 eoaporod cath any oiagle base. {1$} IhaoamlSl Merel, ~ll I, reaC. 144 }II (1}0$}. }lk} &liastr ~ Osallhos, Ideals ~ F ~SI...

Schoch, Henry Bernard

1939-01-01T23:59:59.000Z

364

E-Print Network 3.0 - alkali-resistant denox catalysts Sample...  

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

University, Department of Earth and Environmental Engineering, Center for Life Cycle Analysis Collection: Renewable Energy 14 For this study, researchers from the University of...

365

E-Print Network 3.0 - alkali-activated slag pastes Sample Search...  

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

. Vitrification produces inert slag that can be used as a construction material. Gasification produces a fuel gas... of the waste to produce a metal alloy and an environmentally...

366

E-Print Network 3.0 - alkali metal compounds Sample Search Results  

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

. . . . . . . . . . . 3-3 3.3 Formation of sulphur compounds during combustion and gasification . ... Source: Laughlin, Robert B. - Department of Physics, Stanford University...

367

E-Print Network 3.0 - alkali sodic soil Sample Search Results  

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

; Renewable Energy 29 ECOSYSTEM ECOLOGY The effects of tree establishment on water and salt dynamics Summary: of sodic soils in the Caspian region and India (Mishra and...

368

Alkali metal ions through glass: a possible radioactive waste management application  

E-Print Network [OSTI]

Early studies show that some types of glass can become conductors of electricity at higher temperatures. The nature of the conductance was shown to be ionic. The studies also showed that, due to structural properties within the glass, the ionic...

Jones, Robert Allan

1996-01-01T23:59:59.000Z

369

alkali-promoted cobalt oxide: Topics by E-print Network  

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

Properties 827 2 Kovacs, Julie 106 Ferromagnetism in cobalt-implanted ZnO D. P. Norton,a) Materials Science Websites Summary: November 2003 The magnetic and structural...

370

E-Print Network 3.0 - alkali salt deposition Sample Search Results  

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

formation and salt ... Source: Zachariah, Michael R. - Departments of Chemistry & Mechanical Engineering, University of Minnesota Collection: Chemistry ; Materials Science...

371

E-Print Network 3.0 - alkali sacaton sporobolus Sample Search...  

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

monsoon water sources. The ET of ... Source: Wong, Pak Kin - Department of Aerospace and Mechanical Engineering, University of Arizona Collection: Engineering ; Biology and...

372

Coccidioides immitis vaccine: potential of an alkali-soluble, water-soluble cell wall antigen  

E-Print Network [OSTI]

consistently fai led to protect recipients against chal I enge (3, 29) . Vaccine trials in coccidioldcmycosis have been conducted by Kong (26, 29), Levine (3I, 35), Pappagi anis (38, 39, 4I, 42) and others (4, 5, 7-IO, 20, 45, 53). These investigators... stable attenuated mutant of C. immitis led investigators to assess the efficacy of killed mycelial phase (20, 31, 32, 41) and spherule phase (26, 31, 32, 53) cells as potential vaccines. Converse et al. (9) inoculated monkeys subcutaneously with 10...

Lecara, Grace

1980-01-01T23:59:59.000Z

373

E-Print Network 3.0 - alkali metal rhenium Sample Search Results  

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

OF TUNGSTEN-RHENIUM COATINGS Y.V. LAKHOTKIN and R... 117915, USSR Abstract- Co-reduction of refractory metal fluorides by hydrogen is analyzed... phase. The kinetics and...

374

The Effect of Different Drying Environments on Microcracking in Alkali-Activated Slag  

E-Print Network [OSTI]

., and Meida, L. O. (2001). Carbon dioxide emissions from the global cement industry. Annual Review of Energy-1156422 (PI: Prof. Mikko Haataja) Andlinger Center for Energy and the Environment

Petta, Jason

375

E-Print Network 3.0 - alkali metal carbonates Sample Search Results  

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

, sodium carbide, turpentine, finely divided metals Calcium water, carbon dioxide, carbon tetrachloride... , acids, metal powders, sulfur, finely divided organics or...

376

E-Print Network 3.0 - alkali metal oxides Sample Search Results  

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

, sodium carbide, turpentine, finely divided metals Calcium water, carbon dioxide, carbon tetrachloride... , and chlorinated hydrocarbons Carbon, activated calcium...

377

E-Print Network 3.0 - alkali metal concentrations Sample Search...  

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

, sodium carbide, turpentine, finely divided metals Calcium water, carbon dioxide, carbon tetrachloride Source: Prentiss, Mara - Department of Physics, Harvard University...

378

alkali-metal vapor-filled ceramic: Topics by E-print Network  

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

j and the magnetic field H in Bi2Sr2CaCu2O8 x ceramics. We provided in high-Tc superconduct- ing granular ceramics remain an intriguing subject of inten- sive investigations...

379

alkali oxide-tantalum niobium: Topics by E-print Network  

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

AT SLAC* CiteSeer Summary: summarq The program of measurements at SLAC on superconduct-. I ing niobium cavities is described. Results for TE and TM;r. mode X-band...

380

ALKALI CATALYSED PRODUCTION OF BIODIESEL FUEL FROM NIGERIAN CITRUS SEEDS OIL  

E-Print Network [OSTI]

The potential of oil extracted from the seeds of three different Nigerian citrus fruits for biodiesel production was investigated. Fatty acid alkyl esters were produced from orange seed oil, grape seed oil and tangerine seed oil by transesterification of the oils with ethanol using potassium hydroxide as a catalyst. In the conversion of the citrus seed oils to alkyl esters (biodiesel), the grape seed oil gave the highest yield of 90.6%, while the tangerine seed oil and orange seed oil gave a yield of 83.1 % and 78.5%, respectively. Fuel properties of the seed oil and its biodiesel were determined. The results showed that orange seed oil had a density of 730 Kg/m 3, a viscosity of 36.5 mm 2 /s, and a pour point of- 14 o C; while its biodiesel fuel had a density of 892 Kg/m 3, a viscosity of 5.60 mm 2 /s, and a pour point of- 25 o C. Grape seed oil had a density of 675 Kg/m 3, a viscosity of 39.5 mm 2 /s, and a pour point of- 12 o C, while its biodiesel fuel had a density of 890 Kg/m 3, a viscosity of 4.80 mm 2 /s, and a pour point of- 22 o C. Tangerine seed oil had an acid value of 1.40 mg/g, a density of 568 Kg/m 3, a viscosity of 37.3 mm 2 /s, and a pour point of- 15 o C, while its biodiesel fuel had an acid value of 0.22 mg/g, a density of 895 Kg/m 3, a viscosity of 5.30 mm 2 /s, and a pour point of- 24 o C.

unknown authors

Note: This page contains sample records for the topic "larson garnet alkali" 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

alkali-metal vapor cells: Topics by E-print Network  

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

THE POROUS SILICON PROCESS APPLYING CONVECTION for the first time to monocrystalline Si thin-film solar cells from the porous silicon (PSI) layer transfer for manufacturing high...

382

alkali-resistant silicon nitride: Topics by E-print Network  

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

Amorphous Silicon B. L. Zink,1,2,* R. Pietri,1. Above 50 K the thermal conductivity of thin-film amorphous silicon agrees with values previously Hellman, Frances 131 Profiles:...

383

PERMANENT MAGNETS UNDER IRRADIATION AND RADIOACTIVE ALKALI ION BEAM DEVELOPMENT FOR SPIRAL 1  

E-Print Network [OSTI]

produced by nuclear reactions are released from the high temperature target (2000°C), effuse through a cold transfer tube up to a multi-charged ECR ion source. After extraction from the ECRIS at low energy ( 34 q of high-energy fragmentation as well as the ISOL methods for exploring the structure of nuclei far from

Boyer, Edmond

384

alkali-silicate glass exposed: Topics by E-print Network  

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

applications. - Int. J. Solids & Struct. 49 and Motivation Components of Thin Film Solar Modules back sheet or glass encapsulant electrical conductor thin 40 Glass Forming...

385

E-Print Network 3.0 - alkali metal nitrate Sample Search Results  

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

0021-91930104.00 0 DOI: 10.1128JB.183.19.54915495.2001 Summary: for this heavy metal for its anaerobic growth mode on nitrate (1). However, also in this organism,...

386

Corrosion resistance of stainless steels during thermal cycling in alkali nitrate molten salts.  

SciTech Connect (OSTI)

The corrosion behavior of three austenitic stainless steels was evaluated during thermal cycling in molten salt mixtures consisting of NaNO{sub 3} and KNO{sub 3}. Corrosion tests were conducted with Types 316, 316L and 304 stainless steels for more than 4000 hours and 500 thermal cycles at a maximum temperature of 565 C. Corrosion rates were determined by chemically descaling coupons. Metal losses ranged from 5 to 16 microns and thermal cycling resulted in moderately higher corrosion rates compared to isothermal conditions. Type 316 SS was somewhat more corrosion resistant than Type 304 SS in these tests. The effect of carbon content on corrosion resistance was small, as 316L SS corroded only slightly slower than 316 SS. The corrosion rates increased as the dissolved chloride content of the molten salt mixtures increased. Chloride concentrations approximating 1 wt.%, coupled with thermal cycling, resulted in linear weight loss kinetics, rather than parabolic kinetics, which described corrosion rates for all other conditions. Optical microscopy and electron microprobe analysis revealed that the corrosion products consisted of iron-chromium spinel, magnetite, and sodium ferrite, organized as separate layers. Microanalysis of the elemental composition of the corrosion products further demonstrated that the chromium content of the iron-chromium spinel layer was relatively high for conditions in which parabolic kinetics were observed. However, linear kinetics were observed when the spinel layer contained relatively little chromium.

Bradshaw, Robert W.; Goods, Steven Howard

2001-09-01T23:59:59.000Z

387

Controlled temperature expansion in oxygen production by molten alkali metal salts  

DOE Patents [OSTI]

A continuous process is set forth for the production of oxygen from an oxygen containing gas stream, such as air, by contacting a feed gas stream with a molten solution of an oxygen acceptor to oxidize the acceptor and cyclically regenerating the oxidized acceptor by releasing oxygen from the acceptor wherein the oxygen-depleted gas stream from the contact zone is treated sequentially to temperature reduction by heat exchange against the feed stream so as to condense out entrained oxygen acceptor for recycle to the process, combustion of the gas stream with fuel to elevate its temperature and expansion of the combusted high temperature gas stream in a turbine to recover power. 1 fig.

Erickson, D.C.

1985-06-04T23:59:59.000Z

388

E-Print Network 3.0 - alkali metal halides Sample Search Results  

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

Health & Safety Summary: of an open metal halide lamp. When the lamp failed, the inner arc tube ruptured (inner arc tube can reach... . INTRODUCTION Metal halide systems remain...

389

E-Print Network 3.0 - acids xxiv alkali Sample Search Results  

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

Group 1-A Group 1-B Acetylene sludge Acid sludge Alkaline caustic liquids Acid and water Alkaline... ... Source: Prentiss, Mara - Department of Physics,...

390

E-Print Network 3.0 - alkali-activated slag concrete Sample Search...  

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

66 By-Products Utilization Summary: Center for By-Products Utilization SELF-COMPACTING CONCRETE (SCC) OR SELF- LEVELING CONCRETE (SLC... - MILWAUKEE 12;2 SELF-COMPACTING...

391

ALKALI CATALYSED PRODUCTION OF BIODIESEL FUEL FROM NIGERIAN CITRUS SEEDS OIL  

E-Print Network [OSTI]

biodiesel production was investigated. Fatty acid alkyl esters were produced from orange seed oil, grape

unknown authors

392

Secondary Waste Form Screening Test ResultsCast Stone and Alkali Alumino-Silicate Geopolymer  

SciTech Connect (OSTI)

PNNL is conducting screening tests on the candidate waste forms to provide a basis for comparison and to resolve the formulation and data needs identified in the literature review. This report documents the screening test results on the Cast Stone cementitious waste form and the Geopolymer waste form. Test results suggest that both the Cast Stone and Geopolymer appear to be viable waste forms for the solidification of the secondary liquid wastes to be treated in the ETF. The diffusivity for technetium from the Cast Stone monoliths was in the range of 1.2 10-11 to 2.3 10-13 cm2/s during the 63 days of testing. The diffusivity for technetium from the Geopolymer was in the range of 1.7 10-10 to 3.8 10-12 cm2/s through the 63 days of the test. These values compare with a target of 1 10-9 cm2/s or less. The Geopolymer continues to show some fabrication issues with the diffusivities ranging from 1.7 10-10 to 3.8 10-12 cm2/s for the better-performing batch to from 1.2 10-9 to 1.8 10-11 cm2/s for the poorer-performing batch. In the future more comprehensive and longer term performance testing will be conducted, to further evaluate whether or not these waste forms will meet the regulation and performance criteria needed to cost-effectively dispose of secondary wastes.

Pierce, Eric M.; Cantrell, Kirk J.; Westsik, Joseph H.; Parker, Kent E.; Um, Wooyong; Valenta, Michelle M.; Serne, R. Jeffrey

2010-06-28T23:59:59.000Z

393

E-Print Network 3.0 - alkalis hydroxides Sample Search Results  

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

the results of a laboratory investigation for the use of high-volume clean-coal ash on ... Source: Wisconsin-Milwaukee, University of - Department of Civil Engineering...

394

Geothermometry At Gabbs Alkali Flat Area (Kratt, Et Al., 2008) | Open  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data CenterFranconia, Virginia: Energy Resources Jump to: navigation, searchGeaugaInformation Mexico - A

395

Adsorption of alkali metals on Ge(001)(2&times;1) surface. | EMSL  

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

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE:1 First Use of Energy for All Purposes (Fuel and Nonfuel),Feet) Year Jan Feb Mar Apr May JunDatastreamsmmcrcalgovInstrumentsruc Documentation RUCProductstwrmrAre theAdministrator Referencesalkali metals on

396

E-Print Network 3.0 - alkali electrolysis process Sample Search...  

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

cost ... Source: DOE Office of Energy Efficiency and Renewable Energy, Hydrogen, Fuel Cells and Infrastructure Technologies Program Collection: Energy Storage, Conversion...

397

Potentials for Fuel Cells in Refineries and Chlor-Alkali Plants  

E-Print Network [OSTI]

. The concept is that the fuel cell would use a by-product hydrogen stream as its fuel. The c()nv?~ntional gas turbine combined cycle (GTCC) technology was included in the ana lysi s because it is the 'TIost li kel y system .~ga ins t whi ch the fuel cells... Alkaline Combi ned Steam Fuel Cells Fuel Cells Fuel Cells Cycle Boiler Na turaI ga s Na turaI Na turaI Natura I or hydrogen Gas Hydrogen*- Gas Gas 379 322 316 523 203 50 50 50 SO 0 100,000 BO,OOO 0 150,000 150,000 45 53 54 33 0 30 27 0 32...

Altseimer, J. H.; Roach, F.

398

E-Print Network 3.0 - alkali-transition metal borohydrides Sample...  

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

alkaline earth metal) ... Source: DOE Office of Energy Efficiency and Renewable Energy, Hydrogen, Fuel Cells and Infrastructure Technologies Program Collection: Energy Storage,...

399

acid based alkali-free: Topics by E-print Network  

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

unknown authors 340 Separation of Vitamin B2 and B12 by Impregnate HPTLC Plates with Boric Acid CiteSeer Summary: AbstractA high performance thin layer chromatography system...

400

E-Print Network 3.0 - alkali gabbros Sample Search Results  

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

whereas a crosscut- ting gabbro... with the time of crystallization of the younger titanite component. Gabbro (sample C-99-46) The sample... -47, and c zircon data for gabbro...

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


401

E-Print Network 3.0 - alkali halide-alkaline earth Sample Search...  

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

subalkali basalts; the etymology of the term "basalt" is uncertain... , perovskite, titanite and rare-earth (fluoro)carbonates. Carbonatites are further classified on the basis...

402

Council's Regional Hydropower Potential Scoping  

E-Print Network [OSTI]

Hydroelectric Association Lisa Larson, HDR Rick Miller, HDR Discussion of analysis Reaction? 2 #12;Objective Northwest Hydroelectric Association HDR, Inc. MWH Global Black & Veatch Bonneville Environmental

403

Dynamic Interactions and Molecular Rearrangements Occurring when RNA Polymerase II Meets the Nucleosome  

E-Print Network [OSTI]

Larson, K.C. Neuman, J. Gelles, R. Landick, and S.M. Block.E.A. Abbondanzieri, R. Landick, J. Gelles, and S.M. Block.

Bintu, Lacramioara

2010-01-01T23:59:59.000Z

404

E-Print Network 3.0 - adolescent substance abuse Sample Search...  

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

of - Energy and Geoscience Institute, Geothermal Research Group Collection: Renewable Energy ; Geosciences 2 Linking Trauma & Substance Abuse: References Amaro, H., Larson, M. J.,...

405

E-Print Network 3.0 - aseismic design licensings Sample Search...  

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

Source: Larson, Kristine - Department of Aerospace Engineering Sciences, University of Colorado at Boulder Collection: Geosciences 6 Triggered aseismic fault slip from nearby...

406

Periodic Comet Recoverers James V. Scotti  

E-Print Network [OSTI]

. . . . . . . . . . . . . . . . . . . . . . . . . 14 3.10 Tom Gehrels . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 3.11 James B. Gibson . . . . . . . . . . . . . . . . . . . . . . . 18 3.19 Stephen M. Larson . . . . . . . . . . . . . . . . . . . . . . . . 18 3.20 Robert H. Mc

Scotti, Jim

407

avo toomsoo paul: Topics by E-print Network  

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

processes Paul B. Larson Mathematics Websites Summary: of Leo Harrington from the 1970's, showing that a counterexample to Vaught's Conjecture has modelsScott processes Paul...

408

Draft  

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

Energy Board WIEB), Bob Fronczak (Association of American Railroads), Paul Johnson (ORNL), Doug Larson (Western Interstate Energy Board WIEB), Bill Mackie (Western...

409

Draft  

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

Northern Santa Fe Railroad), Ray English (Office of Naval Reactors, DOE), Paul Johnson (ORNL), Doug Larson (Western Interstate Energy Board WIEB), Bill Mackie (Western...

410

E-Print Network 3.0 - aerated sodium chloride Sample Search Results  

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

CONTROL SYSTEM FOR Summary: from this project: Aeration of large-scale municipal wastewater treatment plants: state of the art... , Diego Rosso, Lory E. Larson, Michael K....

411

Atomic structure of the {sigma}5 (210)/[001] symmetric tilt grain boundary in yttrium aluminum garnet  

SciTech Connect (OSTI)

The {Sigma}5(210)/[100] symmetric tilt grain boundary in YAG was produced by UHV diffusion bonding precisely oriented single crystals. The boundary has been characterized by HREM along two different directions, parallel and perpendicular to the tilt axis. Models of the atomic structure of the boundary were formed following the Coincident Site Lattice scheme. The resulting models are equivalent to twins formed at the atomic scale. The high resolution images show no rigid crystal translations away from the perfect mirror reflection relation. Comparison of the simulated images using the atomic model as input with the experimental images identifies the plane of mirror symmetry. The atomic model is shown to be in good agreement with the experimental images when viewed parallel to tilt axis, but disagrees with the images perpendicular to tilt axis. Agreement between simulated and experimental images can be improved by changing the composition of the grain boundary with respect to the bulk. To reach a more certain conclusion on the structure of the grain boundary will require additional theoretical calculations.

Campbell, G.H.; King, W.E.

1996-06-24T23:59:59.000Z

412

Comment on 'A planar refractive x-ray lens made of nanocrystalline diamond'[J. Appl. Phys. 108, 123107 (2010)  

SciTech Connect (OSTI)

The material LuAG (lutetium aluminium garnet) has been confused with LAG (lanthanum aluminium garnet). In general, aluminium garnet phases only occur for the smaller trivalent metal cations and LAG is not known to have been synthesized.

Kroon, R. E. [Department of Physics (IB51), University of the Free State, Box 339, Bloemfontein (South Africa)] [Department of Physics (IB51), University of the Free State, Box 339, Bloemfontein (South Africa)

2013-05-28T23:59:59.000Z

413

EMERGENCY RESPONSE FOR HOMELAND SECURITY: LESSONS LEARNED AND THE  

E-Print Network [OSTI]

EMERGENCY RESPONSE FOR HOMELAND SECURITY: LESSONS LEARNED AND THE NEED FOR ANALYSIS Larson, R;Emergency Response for Homeland Security: Lessons Learned and the Need for Analysis By Richard C. Larson. In this section, we are particularly concerned with `lessons learned' and with recurring decisions that must

Wang, Hai

414

Structural studies of alkali methylidyne radicals: High resolution spectroscopy of NaCH and KCH ,,X~ 3  

E-Print Network [OSTI]

Institute of Physics. S0021-9606 99 02605-7 I. INTRODUCTION The interaction of metals with organic molecules, especially those involving lithium, sodium, and potassium.6 The usefulness of organolithium compounds and therefore concern oligomeric structures. Evaluating the properties of even the simplest organoalkali

Ziurys, Lucy M.

415

Electronic and phonon instabilities in face-centered-cubic alkali metals under pressure studied using ab initio calculations  

E-Print Network [OSTI]

electron model is known to be a good approxi- mation to describe their electronic properties due to the weak interaction between valence electrons and ionic core under ambient conditions.1 However, under be the origin of the complex phase transitions for fcc lithium. In this work, we investigate systemically

Oganov, Artem R.

416

Ambiguity of exhaustive diagnosing of alkali-aggregate reaction for concrete revetments subjected to more aggressive factors  

SciTech Connect (OSTI)

On the Bistrita river, in the downstream section of Bicaz gravity dam that is 125 m high and creates a 1,500 hm{sup 3} reservoir, have been additionally built eight low head power stations interconnected by headrace and tailrace channels. These channels of 61 km total length convey water to and from the power stations and have been performed using embankment and excavation. The ground where these channels were located is of sandy clay nature with gypseous layers intercalation. The geometrical characteristics of the channels are as follows: trapezoidal section of 1V:2H slope and 6 m width at base, the water head ranging between 4 and 6 m. Both the apron and the channels slopes have been sealed using 5 x 4 m and 15 cm thick concrete slabs. Two or three slab rows are located under the water level. Channels were commissioned in 1964, and shortly after their commissioning, failures came forth and aggravated, calling for several repairs in more than 30 operation years. Concrete was exclusively damaged within the upper slabs in the area of variable water level in channel. All along the paper, there are mentioned only these slabs because the other ones in the submerged rows of slabs are practically undamaged.

Olteanu, A.; Dragomir, D. [ISPH, Design and Studies Institute for Hydro Power Projects, Bucharest (Romania); Hulea, D. [Romanian Electricity Authority, Bucharest (Romania)

1995-12-31T23:59:59.000Z

417

Characterization of selective binding of alkali cations with carboxylate by x-ray absorption spectroscopy of liquid microjets  

E-Print Network [OSTI]

of the interaction of the carboxylate with lithium; this isinteraction strengths of the monovalent cations of sodium, potassium, and lithiumlithium acetate revealing distinct shifts between the cations, indicative of preferential interactions.

Uejio, Janel S.

2008-01-01T23:59:59.000Z

418

{sup 3}He polarization-dependent EPR frequency shifts of alkali-metal-{sup 3}He pairs  

SciTech Connect (OSTI)

We present temperature-dependent measurements of the EPR frequency shifts for Na, K, and Rb interacting with polarized {sup 3}He. K and Na frequency shifts were measured via comparison with Rb frequency shifts (well known at low temperatures) in Na-Rb-{sup 3}He and K-Rb-{sup 3}He spin-exchange cells. The lowered Rb vapor pressure of these 'hybrid' spin-exchange cells also allowed us to extend the measured temperature dependence of the Rb EPR frequency shifts up to 350 deg. C. This work presents measurements of the EPR frequency shift for Na in {sup 3}He and significantly extends the temperature range of previous Rb and K EPR frequency shift measurements. These results are critical to the performance of accurate {sup 3}He EPR polarimetry in spin-exchange cells.

Babcock, Earl; Walker, Thad G. [Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706 (United States); Nelson, Ian A. [Department of Human Oncology, University of Wisconsin Medical School, Madison, Wisconsin 53792 (United States); Kadlecek, Steve [Department of Radiology, University of Pennsylvania, Philadelpia, Pennsylvania 19104 (United States)

2005-01-01T23:59:59.000Z

419

Performance-based approach to evaluate alkali-silica reaction potential of aggregate and concrete using dilatometer method  

E-Print Network [OSTI]

....................................................... 27 Aggregate Testing................................................................... 28 Cement-Aggregate Combination Testing ............................... 31 Gel Identification............................................................. 110 Chemistry of Pore Solution in Concrete ...................................... 113 Solubility of ASR Gel.................................................................. 113 Determination of Aggregate...

Shon, Chang Seon

2009-05-15T23:59:59.000Z

420

Zevenhoven & Kilpinen TRACE ELEMENTS, ALKALI METALS 19.6.2001 8-1 Chapter 8 Trace elements,  

E-Print Network [OSTI]

air pollutants), "known or suspected of causing cancer or other serious health effects" (see also, in part stemming from anthropogenic sources, i.e. pollution. In wastes and waste-derived fuels the "trace to fouling of turbine blades (mainly Ca)or pollute or poison catalysts (mainly As) or sorbents downstream

Zevenhoven, Ron

Note: This page contains sample records for the topic "larson garnet alkali" 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

Selective Recognition of an Alkali Halide Contact Joseph M. Mahoney, Alicia M. Beatty, and Bradley D. Smith*  

E-Print Network [OSTI]

, and Bradley D. Smith* Department of Chemistry and Biochemistry UniVersity of Notre Dame, Notre Dame, Indiana

Smith, Bradley D.

422

J. PHYS. IV FRANCE 7 (1997) Colloque C1, SupplCmentau Journal de Physique 111de mars 1997  

E-Print Network [OSTI]

Defects in Yttrium Iron Garnet P. Novkk, J. Englich*, H. Stepankova*, J. Kohout*, H. Liitgemeier**, K

Paris-Sud XI, Université de

423

Timeless Natural Beauty of the Mineral World g e m s a n d g e m s t on e s  

E-Print Network [OSTI]

)000 Uvarovite Garnet000 Zircon (hyacinth, jargon, starlight, matara)000 Pyroxene Group000 Spodumene

McReynolds, Ben

424

PHYSICAL REVIEW A 82, 043806 (2010) Photon self-induced spin-to-orbital conversion in a terbium-gallium-garnet crystal  

E-Print Network [OSTI]

`a di Napoli "Federico II", Complesso Universitario di Monte S. Angelo, 80126 Napoli, Italy 2 INFN Sezione di Napoli, Complesso Universitario di Monte S. Angelo, 80126 Napoli, Italy 3 EGO, European Gravitational Observatory, Via E. Amaldi, 56021 S. Stefano a Macerata, Cascina (PI), Italy 4 CNISM

Marrucci, Lorenzo

425

EVALUATION OF VARIOUS FOLIAR SPRAYS FOR USE AS A CANADA GOOSE GRAZING DETERRENT  

E-Print Network [OSTI]

and constant support. I would especially like to thank members of the Webster, SD office, especially Blake and advice in regards to the project. I also thank my committee members, Dr. Gary Larson and Dr. KC Jensen

426

BIOGRAPHIES Randolph Hall: Networks, Emergency Response,  

E-Print Network [OSTI]

and more than 75 scientific articles, primarily in emergency response, queuing, logistics and workforce planning. Larson's research on queues has resulted in new computational techniques and has been covered: Cybersecurity, Computa

Southern California, University of

427

Studies in superfluid helium  

E-Print Network [OSTI]

Address: $ Oscar Nosbeck Route g2 Red Lake Falls, Ninnesota 56750 Personal Information Date of' Birth: September 27, 1 939 Place of Birth: Thief River Falls, Ninnesota Parents: Oscar E. Xosbeck Ruth Syversrud Larson Nosbeck Age: 29 Narital...

Larson, Elmer Virgil

1969-01-01T23:59:59.000Z

428

E-Print Network 3.0 - aare kuusik jt Sample Search Results  

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

of Todorcevic on universal Baireness Paul B. Larson* Summary: it is in the projection of j(T ). Furthermore, since M is wellfounde* *d, M | x 2 pj(T ). Then in V...

429

DMFA Logo AMC Logo Also available at http://amc.imfm.si  

E-Print Network [OSTI]

, Richmond, VA 23284-2014 Jasper Souffriau Applied Mathematics, Computer Science and Statistics, Ghent Larson), Jasper.Souffriau@UGent.be (Jasper Souffriau), Nicolas.VanCleemput@UGent.be (Nico Van Cleemput

Larson, Craig E.

430

Frontiers in Chemical Imaging Seminar Series  

E-Print Network [OSTI]

Frontiers in Chemical Imaging Seminar Series On the trail of the Chimera The Atom the Chimera is still elusive. 1. Thomas F. Kelly and David J. Larson. Ann Rev. Materials Res 42 (2012) 1. 2

431

Contributing Storage using the Transparent File System  

E-Print Network [OSTI]

resources on their personal computers to a shared pool. Applications such as SETI@home, Folding@home Folding@home [Larson et al. 2002] and anonymous publish- ing and content distribution such as Freenet

Berger, Emery

432

Silicon based millimeterwave integrated circuits for multi giga-bits-per-second wireless data  

E-Print Network [OSTI]

Figure 1.8: Direct-conversion receiverL. Larson, A 24-GHz CMOS Direct-Conversion Sub- Harmonic2000. [17] A. Abidi, Direct-conversion radio transceivers

Kodkani, Rahul M.

2009-01-01T23:59:59.000Z

433

Geothermal Reservoir Assessment Case Study, Northern Basin and...  

Open Energy Info (EERE)

Elaine J. Bell, Lawrence T. Larson and Russell W. Juncal Published U.S. Department of Energy, 1980 Report Number GLO2386 DOI Not Provided Check for DOI availability: http:...

434

In The Name Of The Father, The Governor, And "A-1 Good Men": Performing Gender and Statehood In Territorial New Mexico, 1880 - 1912  

E-Print Network [OSTI]

Review 84 (1990): 293-310. Lamar, Howard. The Far Southwest,1985); and Howard Roberts Lamar, The Far Southwest, 1846-s Quest for Statehood; and Lamar, The Far Southwest. Larson,

Sanchez, Sabrina

2013-01-01T23:59:59.000Z

435

Room-temperature photomagnetism in the spinel ferrite (Mn,Zn,Fe)3O4 as seen via soft x-ray magnetic circular dichroism  

E-Print Network [OSTI]

photomagnetism in the spinel ferrite (Mn,Zn,Fe)3O4 as seendoped garnets 1 , doped spinel ferrites 2 , doped perovskiteIn the doped garnets and ferrites, the microscopic origin of

Bettinger, J.S.

2010-01-01T23:59:59.000Z

436

E-Print Network 3.0 - aqueous ionic melts Sample Search Results  

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

Environmental Sciences and Ecology 50 doi:10.1016j.gca.2004.09.025 Rare earth diffusion kinetics in garnet: Experimental studies and applications Summary: in garnet as a function...

437

INTERACTION OF A SUB-BITUMINOUS COAL WITH A STRONG ACID AND A STRONG BASE  

E-Print Network [OSTI]

alkali con- alkali-soluble Seam coal over the temperaturefor the Pittsburgh Seam coal. Another important conclusionVI, Composition of Roland seam coal--ultimate analysis~ wt%,

Seth, M.

2010-01-01T23:59:59.000Z

438

E-Print Network 3.0 - ar filled metallic Sample Search Results  

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

A detailed analysis of the formation energies for alkali, earth-alkali, and transition-metal Source: Marianetti, Chris A. - Department of Applied Physics and Applied Mathematics,...

439

Strategies for enhancing the effectiveness of metagenomic-based enzyme discovery in lignocellulytic microbial communities  

E-Print Network [OSTI]

St. Louis, MO), (2) OL- Organosolv lignin, propionate (alkali lignin (AL), organosolv lignin (OL), and Indulin AT (Compost Compost Feedstock a Organosolv lignin Alkali lignin

DeAngelis, K.M.

2010-01-01T23:59:59.000Z

440

arXiv:1108.3866v1[physics.atom-ph]18Aug2011 Universalities in ultracold reactions of alkali polar molecules  

E-Print Network [OSTI]

statistics plays a strong role. An ultracold gas of bosonic molecules can lead to Bose-Einstein condensation and an ultracold sample of fermionic molecules can lead to a Degenerate Fermi gas. Thirdly, two polar molecules can University, 198904, Russia interactions in a gas and depends strongly on the ap- plied electric field [16

Kotochigova, Svetlana

Note: This page contains sample records for the topic "larson garnet alkali" 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

Water adsorption, solvation and deliquescence of alkali halide thin films on SiO2 studied by ambient pressure X-ray photoelectron spectroscopy  

SciTech Connect (OSTI)

The adsorption of water on KBr thin films evaporated onto SiO2 was investigated as a function of relative humidity (RH) by ambient pressure X-ray photoelectron spectroscopy. At 30percent RH adsorbed water reaches a coverage of approximately one monolayer. As the humidity continues to increase, the coverage of water remains constant or increases very slowly until 60percent RH, followed by a rapid increase up to 100percent RH. At low RH a significant number of the Br atoms are lost due to irradiation damage. With increasing humidity solvation increases ion mobility and gives rise to a partial recovery of the Br/K ratio. Above 60percent RH the increase of the Br/K ratio accelerates. Above the deliquescence point (85percent RH), the thickness of the water layer continues to increase and reaches more than three layers near saturation. The enhancement of the Br/K ratio at this stage is roughly a factor 2.3 on a 0.5 nm KBr film, indicating a strong preferential segregation of Br ions to the surface of the thin saline solution on SiO2.

Arima, Kenta; Jiang, Peng; Deng, Xingyi; Bluhm, Henrik; Salmeron, Miquel

2010-03-31T23:59:59.000Z

442

CONNORMAN: "CHAP08" --2009/3/31 --18:08 --PAGE 195 --#1 Conceptual model for small-volume alkali basalt  

E-Print Network [OSTI]

waste repository F. J. Spera and S. J. Fowler Today, 31 countries operate 450 nuclear power reactors supplying electric power to 1 billion people, 15% of the world population. Nuclear reactors generate 17% of global electric power needs and a number of industrialized countries depend on nuclear power for at least

Bigelow, Stephen

443

Fluid origins, paths, and fluid-rock reactions at convergent margins, using halogens, Cl stable isotopes, and alkali metals as geochemical tracers  

E-Print Network [OSTI]

range kg/yr Cl sources and sinks Water or rock mass mol/kgtemperature at the source of fluid-rock reactions, asto identify the fluid-rock reactions at source. In addition,

Wei, Wei

2007-01-01T23:59:59.000Z

444

THE PHOTOCATALYZED PRODUCTION OF HYDROGEN FROM WATER ON Pt-FREE SrTi03 SINGLE CRYSTALS IN THE PRESENCE OF ALKALI HYDROXIDES  

E-Print Network [OSTI]

Photocatalytic hydrogen production has been observed on theof NaOH. The rate of hydrogen production increases with thefor tens of hours. Hydrogen production was observe(! only in

Wagner, F.T.

2012-01-01T23:59:59.000Z

445

Enhancement of specific heat capacity of high-temperature silica-nanofluids synthesized in alkali chloride salt eutectics for solar thermal-energy  

E-Print Network [OSTI]

chloride salt eutectics for solar thermal-energy storage applications Donghyun Shin, Debjyoti Banerjee for the anoma- lous enhancement of thermal conductivity over that of the neat solvent. Eastman et al. [5] reported thermal conductivity enhance- ment of 30% and 60% for water based nanofluids of Al2O3 and Cu

Banerjee, Debjyoti

446

Synthesis and Characterization of Single-Crystalline Alkali Titanate Cheng-Yan Xu,, Qi Zhang, Han Zhang,| Liang Zhen, Jie Tang,, and Lu-Chang Qin*,,|  

E-Print Network [OSTI]

a challenge, except for the template method. Recently, sodium titanate nanowires were produced by hydrothermal13 and K2Ti8O17 nanowires have also been successfully prepared by a hydrothermal reaction between Ti. The processing parameters are almost the same, except that the reaction temperature was set at 800 °C, as has

Qin, Lu-Chang

447

Carbon dioxide in silica-undersaturated melt Part I: The effect of mixed alkalis (K and Na) on CO2 solubility and speciation.  

E-Print Network [OSTI]

.g. Gerlach and Graeber, 1985; Symonds et al., 1994; Jambon, 1994) being even dominant in some volcanic

Boyer, Edmond

448

Effect of Sodium Carboxymethyl Celluloses on Water-catalyzed Self-degradation of 200-degree C-heated Alkali-Activated Cement  

SciTech Connect (OSTI)

We investigated the usefulness of sodium carboxymethyl celluloses (CMC) in promoting self-degradation of 200C-heated sodium silicate-activated slag/Class C fly ash cementitious material after contact with water. CMC emitted two major volatile compounds, CO2 and acetic acid, creating a porous structure in cement. CMC also reacted with NaOH from sodium silicate to form three water-insensitive solid reaction products, disodium glycolate salt, sodium glucosidic salt, and sodium bicarbonate. Other water-sensitive solid reaction products, such as sodium polysilicate and sodium carbonate, were derived from hydrolysates of sodium silicate. Dissolution of these products upon contact with water generated heat that promoted cements self-degradation. Thus, CMC of high molecular weight rendered two important features to the water-catalyzed self-degradation of heated cement: One was the high heat energy generated in exothermic reactions in cement; the other was the introduction of extensive porosity into cement.

Sugama T.; Pyatina, T.

2012-05-01T23:59:59.000Z

449

Development of Eu{sup 3+} activated monoclinic, perovskite, and garnet compounds in the Gd{sub 2}O{sub 3}Al{sub 2}O{sub 3} phase diagram as efficient red-emitting phosphors  

SciTech Connect (OSTI)

Eu{sup 3+} doped Gd{sub 4}Al{sub 2}O{sub 9} (GdAM), GdAlO{sub 3} (GdAP), and Gd{sub 3}Al{sub 5}O{sub 12} (GdAG, containing 10 at% of Lu{sup 3+} for lattice stabilization) have been developed in this work as efficient red-emitting phosphors. With coprecipitated carbonate precursors, phase evolution studies found minimum processing temperatures of ?1000, 1100, and 1300 C for the three phosphors to crystallize as pure phases, respectively. Compared with their yttrium aluminate counterparts, the gadolinium-based phosphors exhibit red-shifted O{sup 2?}Eu{sup 3+} charge transfer excitation band (CTB) centers due to the lower electronegativity of Gd{sup 3+} and appreciably higher quantum yields of photoluminescence owing to the occurrence of efficient Gd{sup 3+}?Eu{sup 3+}energy transfer. The optimal Eu{sup 3+} contents were determined to be ?7.5 at% for GdAM and 5.0 at% for both GdAP and GdAG, and concentration quenching of luminescence was suggested to be due to exchange interactions. Fluorescence decay analysis found a shorter lifetime for the phosphor powder processed at a higher temperature or with a higher Eu{sup 3+} content, and the underlying mechanism was discussed. Fluorescence lifetimes were also compared between the yttrium and gadolinium phosphor systems for the dominant emissions. - Graphical abstract: Eu{sup 3+} doped Gd{sub 4}Al{sub 2}O{sub 9} (GdAM), GdAlO{sub 3} (GdAP), and Gd{sub 3}Al{sub 5}O{sub 12} (GdAG, containing 10 at% of Lu{sup 3+} for lattice stabilization) have been developed as efficient red-emitting phosphors. Owing to the Gd{sup 3+} to Eu{sup 3+} energy transfer, improved luminescence is observed for the compounds than their yttrium-based counterparts. Display Omitted - Highlights: Eu{sup 3+} doped Gd{sub 4}Al{sub 2}O{sub 9}, GdAlO{sub 3} and (Gd{sub 0.9}Lu{sub 0.1}){sub 3}Al{sub 5}O{sub 12} developed as red phosphors. Improved red-emissions than their yttrium-based counterparts confirmed. Efficient Gd{sup 3+}?Eu{sup 3+}energy transfer observed. Applications in various lighting, display, and scintillation areas expected.

Li, Jinkai [Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern University, Shenyang, Liaoning 110004 (China); Li, Ji-Guang, E-mail: LI.Jiguang@nims.go.jp [Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern University, Shenyang, Liaoning 110004 (China); Advanced Materials Processing Unit, National Institute for Materials Science, Sengen 1-2-1, Tsukuba, Ibaraki 305-0047 (Japan); Li, Jing [Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern University, Shenyang, Liaoning 110004 (China); Advanced Materials Processing Unit, National Institute for Materials Science, Sengen 1-2-1, Tsukuba, Ibaraki 305-0047 (Japan); Liu, Shaohong; Li, Xiaodong; Sun, Xudong [Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Materials and Metallurgy, Northeastern University, Shenyang, Liaoning 110004 (China); Sakka, Yoshio [Advanced Materials Processing Unit, National Institute for Materials Science, Sengen 1-2-1, Tsukuba, Ibaraki 305-0047 (Japan)

2013-10-15T23:59:59.000Z

450

Regenerable sorbents for CO.sub.2 capture from moderate and high temperature gas streams  

DOE Patents [OSTI]

A process for making a granular sorbent to capture carbon dioxide from gas streams comprising homogeneously mixing an alkali metal oxide, alkali metal hydroxide, alkaline earth metal oxide, alkaline earth metal hydroxide, alkali titanate, alkali zirconate, alkali silicate and combinations thereof with a binder selected from the group consisting of sodium ortho silicate, calcium sulfate dihydrate (CaSO.sub.4.2H.sub.2O), alkali silicates, calcium aluminate, bentonite, inorganic clays and organic clays and combinations thereof and water; drying the mixture and placing the sorbent in a container permeable to a gas stream.

Siriwardane, Ranjani V. (Morgantown, WV)

2008-01-01T23:59:59.000Z

451

E-Print Network 3.0 - alto quixaba pegmatite Sample Search Results  

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

suite consisting primarily of K... , garnet, and less K-feldspar. Notably, zircon and titanite are absent from pegmatites. The TTG batholiths Source: Collection: Geosciences 19...

452

E-Print Network 3.0 - apatite structured minerals Sample Search...  

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

calcic garnet and clinopyroxene, REE primarily occupy the structural position... and titanite i.e. minerals that preferentially incorporate ... Source: Arrhenius, Gustaf -...

453

Center for Quantum Science and Engineering Weekly Seminar  

E-Print Network [OSTI]

SPEAKER Dr. Derek Larson Postdoctoral researcher, Department of Physics, NTU PLACE Rm716, CCMS & New Physics Building, NTU Abstract The study of structural glasses remains a difficult problem in condensed, I show how the phase structure depends on the effective system dimension. We use one

Wu, Yih-Min

454

ANNUAL VARIABILITY OF REEF-FISH ASSEMBLAGES IN KELP FORESTS OFF SANTABARBARA, CALIFORNIA  

E-Print Network [OSTI]

ANNUAL VARIABILITY OF REEF-FISH ASSEMBLAGES IN KELP FORESTS OFF SANTABARBARA, CALIFORNIA ALFRED W. EBELING/ RALPH J. LARSON,2 WILLIAM S. ALEVIZON,3 AND RICHARD N. BRAy 4 ABSTRACT Assemblages of kelp-bed fishes that live in and about the kelp canopy or over the reef bottom were censused by movie strips

455

The technology menu for efficient energy use in India  

E-Print Network [OSTI]

of energy audit and other studies from the files of the National Productivity Council were reviewed. SinceThe technology menu for efficient energy use in India Eric D. Larson and Anand Subbiah Center for Energy and Environmental Studies Princeton, New Jersey, 08544, USA TOTAL ELECTRICITY GENERATION in India

456

domain of the leading head is angled forward and has a kink shortly after emerging from the  

E-Print Network [OSTI]

. U.S.A. 96, 13726 (1999). 8. W. Hua, J. Chung, J. Gelles, Science 295, 844 (2002). 9. M. Y. Ali et al (2000). 18. R. E. Thompson, D. R. Larson, W. W. Webb, Biophys. J. 82, 2775 (2002). 19. J. Gelles, B. J

Ronquist, Fredrik

457

InsideIllinoisDec. 7, 2006 Vol. 26, No. 11  

E-Print Network [OSTI]

Illinois prod- ucts to the public, to promote the Allerton name and in- crease food service (at the re, food service administrator; and Eric Larson, pastry chef in the Housing Division, were among 20 Dog tile, an Allerton T-shirt and hat, and other items, and the Allerton Label Food Basket contains

Lewis, Jennifer

458

VO L U M E 1 4 N U M B E R 4 FA L L 2 0 1 2 CLASS OF 2016 p. 8  

E-Print Network [OSTI]

treatments to maximize effectiveness in patient care FALL 2012 Diagnostic Imaging and Radiology Research UW Student Life 34 WIMR II 36 Healer's Journey 40 Larson's Perspective Addiction Medicine Fellowship Training future primary care providers to confront this serious issue Connecting Disciplines for Digestive Health

Wisconsin at Madison, University of

459

Towards new states of matter with atoms and photons  

E-Print Network [OSTI]

Towards new states of matter with atoms and photons Jonas Larson Stockholm University and Universität zu Köln Aarhus "Cold atoms and beyond" 26/6-2014 #12;Motivation Optical lattices + control QED = coupling between few material (atomic) and few electromagnetic degrees of freedom. Cavity atom

460

RESOLVING BEAM TRANSPORT PROBLEMS IN ELECTROSTATIC ACCELERATORS  

E-Print Network [OSTI]

RESOLVING BEAM TRANSPORT PROBLEMS IN ELECTROSTATIC ACCELERATORS J. D. LARSON (*) Oak Ridge National are frequently encounte- red during the design, operation and upgrading of electrostatic accelerators. Examples are provided of analytic procedures that clarify accelerator ion optics and lead to more effective beam

Boyer, Edmond

Note: This page contains sample records for the topic "larson garnet alkali" 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

Dimethyl ether (DME) from coal as a household cooking fuel in China  

E-Print Network [OSTI]

be made from any carbonaceous feedstock, including natural gas, coal, or biomass, using establishedDimethyl ether (DME) from coal as a household cooking fuel in China Eric D. Larson Princeton gas (LPG) as a household cooking fuel. As such, DME is an attractive fuel for clean cooking. DME can

462

Untitled Document http://www.cfr.washington.edu/Outreach/Denman/nov9-2k.html 1 of 2 8/5/2008 2:02 PM  

E-Print Network [OSTI]

:02 PM Symposium on the Certification of State Lands This program was held on Thursday, November 9, 2000 for this symposium: Susan Bolton Linda Chalker-Scott Jerry Franklin Bruce Larson (chair) Bruce Lippke Robert Lee Bruce Bare) 12:50 PM Just what is forest certification and how has it been used? (Dean Kristiina Vogt

Borenstein, Elhanan

463

o f O c e a n o s i t y o f W a s h  

E-Print Network [OSTI]

Battery 11.7 V lithium 7.8 V lithium Sample Rate 1000 Hz 1920 Hz Programmable Gain No Yes A/D Range 0 2 the interactions between tidal loading and seafloor hydrothermal systems. (Data provided courtesy of Ben Larson

Crone, Timothy J.

464

Running head: GUIDING ATTENTION ON PHYSICS PROBLEMS 1 Guiding Attention on Physics Problems Using Visual Cues Modeled After Experts' Eye  

E-Print Network [OSTI]

Visual Cues Modeled After Experts' Eye Movements Adrian Madsen, Adam Larson, Amy Rouinfar, Allison Coy by recording their eye movements. In Study 1, we record eye movements of introductory and graduate physics in visual attention. We use the eye movements of those who answer these questions correctly to design visual

Zollman, Dean

465

3944 VOLUME 14J O U R N A L O F C L I M A T E 2001 American Meteorological Society  

E-Print Network [OSTI]

on the amount and vertical distribution of water vapor above the cold-pool boundary layer (CPBL). In response; Sun and Liu 1996; Miller 1997; Larson et al. 1999, hereinafter LHK; Sherwood 1999; Clement and Seager cloud-radiative effects and specified the potential temperature difference between the upper * Current

Randall, David A.

466

Physical properties of upper oceanic crust: Ocean Drilling Program Hole 801C and the waning of hydrothermal circulation  

E-Print Network [OSTI]

Marine Geology and Geophysics: Heat flow (benthic) and hydrothermal processes; 7220 Seismology: Oceanic of hydrothermal circulation Richard D. Jarrard,1 Lewis J. Abrams,2 Robert Pockalny,3 Roger L. Larson,3 and Tetsuro 2003. [1] The hydrologic evolution of oceanic crust, from vigorous hydrothermal circulation in young

Abrams, Lewis J.

467

Common variants at ten loci influence QT interval duration in the QTGEN Study  

E-Print Network [OSTI]

Hofman4,16, Susan R Heckbert9,12,17, Christopher J O'Donnell3,18,19, Andre´ G Uitterlinden4,8,16, Bruce M Psaty9,10,12,17,20, Thomas Lumley5,23, Martin G Larson3,7,23 & Bruno H Ch Stricker4,8,15,16,21,23 QT

de Bakker, Paul

468

EXPLORING IMPLICATIONS TO 2050 OF ENERGY-TECHNOLOGY OPTIONS FOR CHINA  

E-Print Network [OSTI]

of per capita GDP. We assumed that by 2050 China will be usingEXPLORING IMPLICATIONS TO 2050 OF ENERGY- TECHNOLOGY OPTIONS FOR CHINA E.D. Larson,1 P. DeLaquil,2, NJ 08544-1003, USA 2 Clean Energy Commercialization, 1816 Crosspointe Drive, Annapolis, MD 21401, USA

469

Reproduced with pennission from Annual Review of Energy & Environmell1 .Ann. Rev. Energy1987. 12:99-144  

E-Print Network [OSTI]

Reproduced with pennission from Annual Review of Energy & Environmell1 .-- .Ann. Rev. Energy1987. 12:99-144 Copyright @ 1987by AnnualReviews1nc.AU rights reserved , MA TERIALS, AFFL UEN CE , AND l" INDUSTRIAL ENERGY USE Robert H. Williams and Eric D. Larson Center for Energy and Environmental Studies

470

ERDC/ELTR-12-25 Army Range Technology Program  

E-Print Network [OSTI]

ERDC/ELTR-12-25 Army Range Technology Program Large-Scale Physical Separation of Depleted Uranium-Scale Physical Separation of Depleted Uranium from Soil Steven Larson, Victor Medina, John Ballard, Chris Griggs) at Yuma Proving Ground (YPG) to evaluate this technique for removal of depleted uranium (DU) metal from

US Army Corps of Engineers

471

1 | Building America eere.energy.gov DOE's Building America  

E-Print Network [OSTI]

1 | Building America eere.energy.gov DOE's Building America Low-E Storm Window Adoption Program Working Group #12;2 | Building America eere.energy.gov Pacific Northwest National Laboratory · Katie Cort, Larson Manufacturing Company Key Staff #12;3 | Building America eere.energy.gov Problem · Windows account

472

Diffusion Maps for Changing Data Diffusion Maps for Changing Data  

E-Print Network [OSTI]

Diffusion Maps for Changing Data Diffusion Maps for Changing Data Matthew J. Hirn Department in Honor of the 70th Birthday of David R. Larson #12;Diffusion Maps for Changing Data Collaborators Joint work with Ronald Coifman and Roy Lederman. #12;Diffusion Maps for Changing Data High Dimensional Data

Hirn, Matthew

473

Why occupancy-responsive adaptive thermostats do not always save -and the limits for when they should  

E-Print Network [OSTI]

, the form and function for technologies in this space vary widely. Some controls merely allow for remote adjust operation for heating, cooling, and ventilation when a space is vacant (Gupta, Intille, and Larson runtime for heating2 and cooling equipment. In certain applications it may also reduce energy use related

California at Davis, University of

474

BIOMASS AND BLACK LIQUOR GASIFIER/GAS TURBINE COGENERATION AT PULP AND PAPER MILLS  

E-Print Network [OSTI]

BIOMASS AND BLACK LIQUOR GASIFIER/GAS TURBINE COGENERATION AT PULP AND PAPER MILLS ERIC D. LARSON modeling of gasifier/gas turbine pulp-mill cogeneration systemsusing gasifier designs under commercial gasification. The use of biomass fuels with gas turbines could transform a typical pulp mill from a net

475

Synthetic fuel production by indirect coal liquefaction  

E-Print Network [OSTI]

Synthetic fuel production by indirect coal liquefaction Eric D. Larson Princeton Environmental@princeton.edu Ren Tingjin Department of Thermal Engineering, Tsinghua University, 100084 Beijing, China This paper reports detailed process designs and cost assessments for production of clean liquid fuels (methanol

476

NOAA Competitive Level -Codes List of changes All This document converted without change to MSWord from WordPerfect, 8/5/04.  

E-Print Network [OSTI]

, per John Hanson. 6/10/02 5201 Diving Equipment Worker added per Brooke Larson, WASC. 11/19/01 #12;NOAA, qualification requirements, pay schedules, and working conditions so that an agency may reassign the incumbent are familiar with qualification requirements and recruiting practices. Care and thought is needed in assigning

477

Consumer's Guide: Preventing Food-borne Illness  

E-Print Network [OSTI]

://www.fightbac.org/content/view/85/2/ Duyff,RobertaLarson.American Dietetic Association Complete Food and Nutrition Guide,3rdedition.2006. Slow Cookers and Food Safety.USDAFoodSafetyand InspectionService.February2008. http://www.fsis.usda.gov/Fact_Sheets/Focus_On_ Slow_Cooker...

Extension Food and Nutrition Specialists

2008-12-22T23:59:59.000Z

478

Introduction to CMI-13: The thirteen annual meeting of  

E-Print Network [OSTI]

in ocean and terrestrial carbon science Stone and Phillips New independent report on geothermal energy: tomorrow Agenda item Why included? Meggers New faculty: energy-efficient buildings revisited Steingart New the mechanisms and effects of global change" Low-Carbon Energy Group: Eric Larson: "Energy systems analysis

479

Synchrotron Vacuum-Ultraviolet Postionization Mass Spectrometry with Laser and Ion Probes for Intact Molecular Spatial Mapping of Lignin  

E-Print Network [OSTI]

Alcohol and Alkali and Organosolv Lignins with SynchrotronAlcohol and Alkali and Organosolv Lignins with Synchrotronof ~6.6 MW/cm 2 , (b) organosolv lignin (Sigma Aldrich)

Takahashi, Lynelle Kazue

2011-01-01T23:59:59.000Z

480

E-Print Network 3.0 - acute sulphur dioxide Sample Search Results  

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

Acetone Concentrated nitric and sulphuric acid mixtures Alkali and alkaline Water, carbon tetrachloride... & other chlorinated earth metals hydrocarbons, carbon dioxide,...

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


481

E-Print Network 3.0 - aqueous silver nitrate Sample Search Results  

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

-Partial list Chemical Incompatibilities Summary: , bromine, copper, fluorine, silver, mercury Acetone Concentrated nitric and sulfuric acid mixtures Alkali... (anhydrous) Ammonium...

482

Eur. Phys. J. D (2010) DOI: 10.1140/epjd/e2010-10118-y  

E-Print Network [OSTI]

for the appli- cations in geocosmical alkali plasma research [10]. Near the critical point and at higher

Ebeling, Werner

483

Treating I anion as a zero-electron system : the Li I and CsI alkali halides anions Vincent ROBERT , 1, 2 Fernand SPIEGELMAN, 1 and Marie-Bernadette LEPETIT 1  

E-Print Network [OSTI]

) on lithium (respectively cesium). An original scheme is proposed to build a pseudo-potential describing the short-range electron-I interaction beyond the point charge approximation. The importance of the ZEP mechanical determination of electronic properties of large molecules and sophisticated materials has become

484

Synthesis and characterization of alkali-metal titanium alkoxide compounds MTi(O-i-Pr) sub 5 (M = Li, Na, K): Single-crystal x-ray diffraction structure of (LiTi(O-i-Pr) sub 5 ) sub 2  

SciTech Connect (OSTI)

The series (MTi(O-iPr){sub 5}), M = Li, Na, or K, has been prepared by the reaction of MO-i-Pr with Ti(O-i-Pr){sub 4}. A single-crystal x-ray diffraction study revealed that (LiTi(O-i-Pr){sub 5}) crystallizes from toluene at {minus}30{degree}C in the monoclinic space group P2{sub 1}/n, with unit cell dimensions a = 11.440 (8) {angstrom}, b = 16.396 (13) {angstrom}, c = 11.838 (8) {angstrom}, {beta} = 92.59 (5){degree}, and Z = 4, as a dimer containing two approximately trigonal-bipyramidal titanium centers linked by lithium bridges. In benzene solution, all three compounds are dimeric, as revealed by cryoscopic molecular weight determination, and all three undergo an alkoxide ligand exchange process that is rapid on the {sup 1}H NMR time scale at room temperature. The positions of {nu}(M-O) are assigned based on the low-energy shifts observed upon deuteriation of the isopropoxide ligands. 23 refs., 3 figs., 3 tabs.

Hampden-Smith, M.J.; Williams, D.S. (Univ. of New Mexico, Albuquerque (USA)); Rheingold, A.L. (Univ. of Delaware, Newark (USA))

1990-10-03T23:59:59.000Z

485

[The Journal of Geology, 1999, volume 107, p. 353374] 1999 by The University of Chicago. All rights reserved. 0022-1376/99/10703-0007$01.00 Early Carboniferous Unroofing in Western Norway: A Tale of Alkali  

E-Print Network [OSTI]

rights reserved. 0022-1376/99/10703-0007$01.00 353 Early Carboniferous Unroofing in Western Norway Geological Survey of Norway, N-7491 Trondheim, Norway (e-mail: Elizabeth.Eide@ngu.no) A B S T R A C T 40 Ar/39 Ar thermochronologic data from an extensional detachment zone in western Norway document

Andersen, Torgeir Bjørge

486

Soranakom, C., Bakhshi M. , and Mobasher, B. " Role of Alkali Resistant Glass Fibers in Suppression of Restrained Shrinkage Cracking of Concrete Materials," 15th International Glass Fibre Reinforced Concrete Association  

E-Print Network [OSTI]

of Restrained Shrinkage Cracking of Concrete Materials," 15th International Glass Fibre Reinforced Concrete Fibers in Suppression of Restrained Shrinkage Cracking of Concrete Materials Chote Soranakom1 , Mehdi resistance of concrete subjected to drying shrinkage is studied by experimental and analytical approaches

Mobasher, Barzin

487

Final Report Energinet project 6517 (FU2206)  

E-Print Network [OSTI]

subsequent cooling of the synthetic flue gas the chlorides and sulphates condense either as deposits on walls probe to sample aerosols of pure alkali sulphate formed by gas phase sulphation of alkali chloride in this chapter . Chapter 2. The formation of aerosol particles is investigated by studying condensation of alkali

488

This article appeared in a journal published by Elsevier. The attached copy is furnished to the author for internal non-commercial research  

E-Print Network [OSTI]

Rare earth elements Ultra high pressure Mantle plume Ultra high pressure (UHP) garnet of coexisting garnet+spinel+corundum, indicative of very high pressure. Chondrite-normalized REEs (rare earth Elsevier B.V. All rights reserved. 1. Introduction Globally scarce ultra high pressure (UHP) rocks

Abbott Jr., Richard N.

489

Extraction process for removing metallic impurities from alkalide metals  

DOE Patents [OSTI]

A development is described for removing metallic impurities from alkali metals by employing an extraction process wherein the metallic impurities are extracted from a molten alkali metal into molten lithium metal due to the immiscibility of the alkali metals in lithium and the miscibility of the metallic contaminants or impurities in the lithium. The purified alkali metal may be readily separated from the contaminant-containing lithium metal by simple decanting due to the differences in densities and melting temperatures of the alkali metals as compared to lithium.

Royer, Lamar T. (Knoxville, TN)

1988-01-01T23:59:59.000Z

490

Carbonation of metal silicates for long-term CO.sub.2 sequestration  

DOE Patents [OSTI]

In a preferred embodiment, the invention relates to a process of sequestering carbon dioxide. The process comprises the steps of: (a) reacting a metal silicate with a caustic alkali-metal hydroxide to produce a hydroxide of the metal formerly contained in the silicate; (b) reacting carbon dioxide with at least one of a caustic alkali-metal hydroxide and an alkali-metal silicate to produce at least one of an alkali-metal carbonate and an alkali-metal bicarbonate; and (c) reacting the metal hydroxide product of step (a) with at least one of the alkali-metal carbonate and the alkali-metal bicarbonate produced in step (b) to produce a carbonate of the metal formerly contained in the metal silicate of step (a).

Blencoe, James G. (Harriman, TN); Palmer, Donald A. (Oliver Springs, TN); Anovitz, Lawrence M. (Knoxville, TN); Beard, James S. (Martinsville, VA)

2012-02-14T23:59:59.000Z

491

Carbonation of metal silicates for long-term CO2 sequestration  

DOE Patents [OSTI]

In a preferred embodiment, the invention relates to a process of sequestering carbon dioxide. The process comprises the steps of: (a) reacting a metal silicate with a caustic alkali-metal hydroxide to produce a hydroxide of the metal formerly contained in the silicate; (b) reacting carbon dioxide with at least one of a caustic alkali-metal hydroxide and an alkali-metal silicate to produce at least one of an alkali-metal carbonate and an alkali-metal bicarbonate; and (c) reacting the metal hydroxide product of step (a) with at least one of the alkali-metal carbonate and the alkali-metal bicarbonate produced in step (b) to produce a carbonate of the metal formerly contained in the metal silicate of step (a).

Blencoe, James G; Palmer, Donald A; Anovitz, Lawrence M; Beard, James S

2014-03-18T23:59:59.000Z

492

Measurement of normal thrust and evaluation of upper-convected Maxwell models for molten plastics in large amplitude oscillatory shear  

E-Print Network [OSTI]

with Relaxation Spectrum Re- ported by Khan and Larson (1987) . IV. 5 Normal Thrust Measurements IV. 6 Mewts-Denn Model Compared With Normal Thrust Measure- ments 37 42 44 46 49 V CONCLUSION REFERENCES APPENDIX FIGURES . . APPENDIX Pa, ge B FIRST... tensor, this is also referred to as the Maxwell model. I. 5 1 Maxwell Model Dealy and Wissbrun (1990) give the Boltzmann superposition principle in the material objective (ie. frame indifferent) integral form in terms of a memory function...

Oakley, Jason Glen

1992-01-01T23:59:59.000Z

493

Ecosystem Processes and Human Influences Regulate Streamflow Response to Climate Change at Long-Term Ecological Research Sites  

E-Print Network [OSTI]

, Mary Beth Adams, Melinda H. Benson, Emery Boose, Warren A. Brown, John L. Campbell, Alan Covich, DavidMery boose, Warren a. broWn, JoHn l. CaMpbell, alan CoviCH, david W. CloW, CliFFord n. daHM, Kelly elder. Larson, Evan S. Miles, Kathleen M. Miles, Stephen D. Sebestyen, Adam T. Spargo, Asa B. Stone, James M

Williams, Mark W.

494

Soil-site relationships for natural stands of longleaf pine (Pinus palustris Mill.) in east Texas  

E-Print Network [OSTI]

. Sites were characterized by so11 physical properties and physiographic factors. Correlation of longleaf site index and height growth with site factors was evaluated by regression techniques. S1te index curves for longleaf pine were developed...SOIL-SITE RELATIONSHIPS FOR NATURAL STANDS OF LONGLEAF PINE (PINUS PALUSTRIS MILL. ) IN EAST TEXAS A Thesis by ERIC HAYS LARSON Submitted to the Graduate College of Texas A8M University in partial fulfillment of the requirement...

Larson, Eric Hays

1971-01-01T23:59:59.000Z

495

Effect of Rb and Ta Doping on the Ionic Conductivity and Stability of the Garnet Li7+2x-y(La3-xRbx)(Zr2-yTay)O12 (0 x 0.375, 0 y 1)  

E-Print Network [OSTI]

compatibility with electrodes, a wide electrochemical operating voltage window, environmentally benign, and does partially satisfy this list of demands. For example, LiPON has a very wide stability window at room temperature) requiring expensive thin film vapor deposition techniques.3 On the other hand, Li10Ge

Ceder, Gerbrand

496

Thermochemical cyclic system for splitting water and/or carbon dioxide by means of cerium compounds and reactions useful therein  

DOE Patents [OSTI]

A thermochemical cyclic process for producing hydrogen from water comprises reacting ceric oxide with monobasic or dibasic alkali metal phosphate to yield a solid reaction product, oxygen and water. The solid reaction product, alkali metal carbonate or bicarbonate, and water, are reacted to yield hydrogen, ceric oxide, carbon dioxide and trialkali metal phosphate. Ceric oxide is recycled. Trialkali metal phosphate, carbon dioxide and water are reacted to yield monobasic or dibasic alkali metal phosphate and alkali metal bicarbonate, which are recycled. The cylic process can be modified for producing carbon monoxide from carbon dioxide by reacting the alkali metal cerous phosphate and alkali metal carbonate or bicarbonate in the absence of water to produce carbon monoxide, ceric oxide, carbon dioxide and trialkali metal phosphate. Carbon monoxide can be converted to hydrogen by the water gas shift reaction.

Bamberger, Carlos E. (Oak Ridge, TN); Robinson, Paul R. (Knoxville, TN)

1980-01-01T23:59:59.000Z

497

Basalt petrogenesis beneath slow- and ultraslow-spreading Arctic mid-ocean ridges  

E-Print Network [OSTI]

To explore the ability of melting mafic lithologies to produce alkaline ocean-island basalts (OIB), an experimental study was carried out measuring clinopyroxene (Cpx)melt and garnet (Gt)-melt partition coefficients during ...

Elkins, Lynne J

2009-01-01T23:59:59.000Z

498

March/April 1998 WAS 1998 Motor Carrier Permit Honey Board Busy  

E-Print Network [OSTI]

you drop at the Palouse shopping mall (you can walk to it). A little further away you can jet boat Creek garnet area; or hike to the top of Kamiak Butte for a spectacular view of the Palouse Hills

Ferrara, Katherine W.

499

E-Print Network 3.0 - albite Sample Search Results  

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

a2 Summary: -enrichment at their rims, accompanied by the12 formation of rare albite. Titanite rims are found on rutile, and garnet... . However, albite or chlorite were not...

500

Degradation of dome cutting minerals in Hanford waste  

SciTech Connect (OSTI)

At the Hanford Tank Farms, recent changes in retrieval technology require cutting new risers in several single-shell tanks. The Hanford Tank Farm Operator is using water jet technology with abrasive silicate minerals such as garnet or olivine to cut through the concrete and rebar dome. The abrasiveness of these minerals, which become part of the high-level waste stream, may enhance the erosion of waste processing equipment. However, garnet and olivine are not thermodynamically stable in Hanford waste, slowly degrading over time. How likely these materials are to dissolve completely in the waste before the waste is processed in the Waste Treatment and Immobilization Plant can be evaluated using theoretical analysis for olivine and collected direct experimental evidence for garnet. Based on an extensive literature study, a large number of primary silicates decompose into sodalite and cancrinite when exposed to Hanford waste. Given sufficient time, the sodalite also degrades into cancrinite. Even though cancrinite has not been directly added to any Hanford tanks during process times, it is the most common silicate observed in current Hanford waste. By analogy, olivine and garnet are expected to ultimately also decompose into cancrinite. Garnet used in a concrete cutting demonstration was immersed in a simulated supernate representing the estimated composition of the liquid retrieving waste from Hanford tank 241-C-107 at both ambient and elevated temperatures. This simulant was amended with extra NaOH to determine if adding caustic would help enhance the degradation rate of garnet. The results showed that the garnet degradation rate was highest at the highest NaOH concentration and temperature. At the end of 12 weeks, however, the garnet grains were mostly intact, even when immersed in 2 molar NaOH at 80 deg C. Cancrinite was identified as the degradation product on the surface of the garnet grains. In the case of olivine, the rate of degradation in the high-pH regimes of a waste tank is expected to depend on two main parameters: carbonate is expected to slow olivine degradation rates, whereas hydroxide is expected to enhance olivine dissolution rates. Which of these two competing dissolution drivers will have a larger impact on the dissolution rate in the specific environment of a waste tank is currently not identifiable. In general, cancrinite is much smaller and less hard than either olivine or garnet, so would be expected to be less erosive to processing equipment. Complete degradation of either garnet or olivine prior to being processed at the Waste Treatment and Immobilization Plant cannot be confirmed, however.

Reynolds, Jacob G.; Huber, Heinz J.; Cooke, Gary A.

2013-01-11T23:59:59.000Z