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1

NDHA REQUIREMENTS FOR FCNS 320 Quantity Food Production  

E-Print Network [OSTI]

of practical food service work experience. CERTIFICATION & TB TEST GUIDELINES Food Sanitation CertificateNDHA REQUIREMENTS FOR FCNS 320 ­ Quantity Food Production OVERVIEW State Of Illinois Food) Skin Test Verification of 100 Hours Completed Work Experience in Food Production Verification

Kostic, Milivoje M.

2

RAPID/Roadmap/11-FD-b | 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 revisionEnvReviewNonInvasiveExploration JumpSanyalTempWellheadWahkiakum CountyPzero-FD-b BLM Land Use1-FD-b Tribal

3

RAPID/Roadmap/13-FD-b | 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 revisionEnvReviewNonInvasiveExploration JumpSanyalTempWellheadWahkiakum CountyPzero-FD-b3 Land Use13-FD-b Military

4

RAPID/Roadmap/9-FD-b | 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 revisionEnvReviewNonInvasiveExplorationUT-g Grant of Access Permit5-ID-a Drilling7-HI-ce < RAPID‎b9-FD-b BLM

5

RAPID/Roadmap/3-FD-b | 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:FAQ < RAPID Jump to: navigation, search RAPIDColorado <17-HI-a < RAPID‎gWA-cCO-c State3-FD-a3-FD-b

6

RAPID/Roadmap/4-FD-b | 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:FAQ < RAPID Jump to: navigation, search RAPIDColorado <17-HI-a <3-FD-d3-WA-b Land4-FD-b Exploration

7

File:09-FD-b - EAProcess.pdf | 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 NoPublicIDAPowerPlantSitingConstruction.pdf Jump to:TXATransmissionSiting.pdf Jump to: navigation, search9-FD-b -

8

Data:Fdb4966a-0867-4cdb-856e-077731a7fab8 | 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 been approved forcd976b98236 Noa566193f57 No revisionFdb4966a-0867-4cdb-856e-077731a7fab8 No revision

9

Data:1e2c68f5-b11d-4d40-b50f-68512fdb2397 | 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 Home Page on Office of48d9ff47edf3 No revision5af6d400c2d No revisionb-80ce915ef62f No revision hasac2dead No revision has12fdb2397

10

Data:5914a046-c43f-4ff5-b2f6-e77edc25fdb2 | 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 Home Page on Office of48d9ff47edf3a87dcc95b3da-78f7ef0b79f6 No446b-9fca-d407954a4b84bf7e33133cb0 No revisionedc25fdb2 No revision

11

Data:Fdb562ba-baac-4b96-9ce3-7722437cb06e | 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 been approved forcd976b98236 Noa566193f57 No revisionFdb4966a-0867-4cdb-856e-077731a7fab8 No

12

Data:Fdb60f8e-d77e-4565-ac82-f4a6f57b924a | 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 been approved forcd976b98236 Noa566193f57 No revisionFdb4966a-0867-4cdb-856e-077731a7fab8

13

Strain Accommodation By Facile WO6 Octahedral Distortion and...  

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

to other BO6 octahedra in ABO3 structured perovskite oxides, the WO6 octahedra in tungsten trioxide (WO3) can withstand a much larger degree of distortion and tilting to...

14

Hydrothermally grown nanostructured WO films and their electrochromic characteristics  

E-Print Network [OSTI]

Hydrothermally grown nanostructured WO 3 films and their electrochromic characteristics.1088/0022-3727/43/28/285501 Hydrothermally grown nanostructured WO3 films and their electrochromic characteristics Zhihui Jiao1 , Xiao Wei and their electrochromic characteristics. Plate-like monoclinic WO3 nanostructures were grown directly on fluorine

Demir, Hilmi Volkan

15

Preparation and Characterization of Monodispersed WO3 Nanoclusters...  

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

early transition metal oxide system for catalysis studiesdirect sublimation of tungsten trioxide on TiO2(110). Isolated monodispersed cyclic trimers, i.e., (WO3)3, can be...

16

Radioactive contamination of ZnWO4 crystal scintillators  

E-Print Network [OSTI]

The radioactive contamination of ZnWO4 crystal scintillators has been measured deep underground at the Gran Sasso National Laboratory (LNGS) of the INFN in Italy with a total exposure 3197 kg x h. Monte Carlo simulation, time-amplitude and pulse-shape analyses of the data have been applied to estimate the radioactive contamination of the ZnWO4 samples. One of the ZnWO4 crystals has also been tested by ultra-low background gamma spectrometry. The radioactive contaminations of the ZnWO4 samples do not exceed 0.002 -- 0.8 mBq/kg (depending on the radionuclide), the total alpha activity is in the range: 0.2 - 2 mBq/kg. Particular radioactivity, beta active 65Zn and alpha active 180W, has been detected. The effect of the re-crystallization on the radiopurity of the ZnWO4 crystal has been studied. The radioactive contamination of samples of the ceramic details of the set-ups used in the crystals growth has been checked by low background gamma spectrometry. A project scheme on further improvement of the radiopurity level of the ZnWO4 crystal scintillators is briefly addressed.

P. Belli; R. Bernabei; F. Cappella; R. Cerulli; F. A. Danevich; A. M. Dubovik; S. d'Angelo; E. N. Galashov; B. V. Grinyov; A. Incicchitti; V. V. Kobychev; M. Laubenstein; L. L. Nagornaya; F. Nozzoli; D. V. Poda; R. B. Podviyanuk; O. G. Polischuk; D. Prosperi; V. N. Shlegel; V. I. Tretyak; I. A. Tupitsyna; Ya. V. Vasiliev; Yu. Ya. Vostretsov

2010-09-05T23:59:59.000Z

17

Radioactive contamination of ZnWO4 crystal scintillators  

E-Print Network [OSTI]

The radioactive contamination of ZnWO4 crystal scintillators has been measured deep underground at the Gran Sasso National Laboratory (LNGS) of the INFN in Italy with a total exposure 3197 kg x h. Monte Carlo simulation, time-amplitude and pulse-shape analyses of the data have been applied to estimate the radioactive contamination of the ZnWO4 samples. One of the ZnWO4 crystals has also been tested by ultra-low background gamma spectrometry. The radioactive contaminations of the ZnWO4 samples do not exceed 0.002 ?? 0.8 mBq/kg (depending on the radionuclide), the total alpha activity is in the range: 0.2 - 2 mBq/kg. Particular radioactivity, beta active 65Zn and alpha active 180W, has been detected. The effect of the re-crystallization on the radiopurity of the ZnWO4 crystal has been studied. The radioactive contamination of samples of the ceramic details of the set-ups used in the crystals growth has been checked by low background gamma spectrometry. A project scheme on further improvement of the radiopur...

Belli, P; Cappella, F; Cerulli, R; Danevich, F A; Dubovik, A M; d'Angelo, S; Galashov, E N; Grinyov, B V; Incicchitti, A; Kobychev, V V; Laubenstein, M; Nagornaya, L L; Nozzoli, F; Poda, D V; Podviyanuk, R B; Polischuk, O G; Prosperi, D; Shlegel, V N; Tretyak, V I; Tupitsyna, I A; Vasiliev, Ya V; Vostretsov, Yu Ya

2010-01-01T23:59:59.000Z

18

WoNeF : amlioration, extension et valuation d'une traduction franaise automatique de WordNet  

E-Print Network [OSTI]

evaluation method, demonstrating the validity of the approach. In addition to the main result called Wo

Boyer, Edmond

19

Electrochromic Poly(DNTD)/WO3 Nanocomposite Films via Electorpolymerization  

E-Print Network [OSTI]

Electrochromic Poly(DNTD)/WO3 Nanocomposite Films via Electorpolymerization Huige Wei, Xingru Yan AFM observations. An air-stable electrochromical window was assembled and obtained by a homemade electrochemical cell to study the electrochromism and stability of the nanocomposite film. The composite film

Guo, John Zhanhu

20

Bull. Mater. Sci., Vol. 35, No. 5, October 2012, pp. 767772. c Indian Academy of Sciences. Anti-tumor activity of self-charged (Eu,Ca):WO3 and Eu:CaWO4  

E-Print Network [OSTI]

-tumor activity of self-charged (Eu,Ca):WO3 and Eu:CaWO4 nanoparticles CAO LIN , CAO JIEXIN , WANG CONG, CHE PING July 2011 Abstract. Non-stoichiometric (Eu,Ca):WO3 and Eu:CaWO4 nanoparticles with anti-tumor activity are synthe- sized in a sol­gel method by adding excessive Eu3+ and Ca2+ ions to tungsten oxide crystal

Volinsky, Alex A.

Note: This page contains sample records for the topic "fdb fcns wo" 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

Strain Accommodation By Facile WO6 Octahedral Distortion and Tilting During WO3 Heteroepitaxy on SrTiO3(001)  

SciTech Connect (OSTI)

In this paper, we show that compared to other BO6 octahedra in ABO3 structured perovskite oxides, the WO6 octahedra in tungsten trioxide (WO3) can withstand a much larger degree of distortion and tilting to accommodate interfacial strain, which in turn strongly impact the nucleation, structure, and defect formation during the epitaxial growth of WO3 on SrTiO3(001). A meta-stable tetragonal phase can be stabilized by epitaxy and a thickness dependent phase transition (tetragonal to monoclinic) is observed. In contrast to misfit dislocations to accommodate the interfacial stain, the facial WO6 octahedral distortion and tilting give rise to three types of planar defects that affect more than 15 monolayers from the interface. These atomically resolved, unusual interfacial defects may significantly alter the electronic, electrochromic, and mechanical properties of the epitaxial films.

Du, Yingge; Gu, Meng; Varga, Tamas; Wang, Chong M.; Bowden, Mark E.; Chambers, Scott A.

2014-08-27T23:59:59.000Z

22

Solar Energy Materials & Solar Cells 92 (2008) 821829 Modeling the optical properties of WO3 and WO3SiO2 thin films  

E-Print Network [OSTI]

Solar Energy Materials & Solar Cells 92 (2008) 821­829 Modeling the optical properties of WO3 the optical response of the films in the near-UV and visible region: two interband transitions for energies E

Thirumalai, Devarajan

23

MWCNT/WO{sub 3} nanocomposite photoanode for visible light induced water splitting  

SciTech Connect (OSTI)

The Multi-walled carbon nanotube (MWCNT)/WO{sub 3} nanocomposite thin films with different MWCNTs weight percentages were prepared by solgel method as visible light induced photoanode in water splitting reaction. Weight percentage of MWCNT in the all nanocomposite thin films was confirmed by TGA/DSC analysis. According to XPS analysis, oxygenated groups at the surface of the MWCNT and stoichiometric formation of WO{sub 3} thin films were determined, while the crystalline structure of the nanocomposite samples was studied by XRD indicating (0 0 2) peak of MWCNT in the monoclinic phase of WO{sub 3}. The influence of different weight percentage (wt%) of MWCNT on WO{sub 3} photoactivity showed that the electron conductivity, charge transfer and electron life time had improved as compared with the pure WO{sub 3}. Based on linear sweep voltammetry and chronoamperometry measurements, the (1 wt%) MWCNT/WO{sub 3} nanocomposite thin films photoanode has a maximum photocurrent density of ?4.5 A/m{sup 2} and electron life time of about 57 s. - Graphical abstract: Photocurrent density versus time at constant potential (0.7 V) for the WO{sub 3} films containing different MWCNT weight percentages annealed at 400 C under 1000 Wm{sup ?2} visible photo-illumination. Display Omitted - Highlights: MWCNT/ WO{sub 3} nanocomposite thin films were synthesized using solgel derived method. TGA/DSC confirmed the weight percentage of MWCNT in the all nanocomposite thin films. XPS analysis revealed that WO{sub 3} was attached on the oxygenated group of MWCNT surface. The Highest Photoelectrochemical activity is achieved for (1 wt%)MWCNT/WO{sub 3} thin film.

Yousefzadeh, Samira [Physics Department, Sharif University of Technology, P.O. Box 11155-9161, Tehran (Iran, Islamic Republic of); Reyhani, Ali [Physics Department, Faculty of Science, Imam Khomeini International University, P.O. Box 34149-16818, Qazvin (Iran, Islamic Republic of); Naseri, Naimeh [Physics Department, Sharif University of Technology, P.O. Box 11155-9161, Tehran (Iran, Islamic Republic of); Moshfegh, Alireza Z., E-mail: moshfegh@sharif.edu [Physics Department, Sharif University of Technology, P.O. Box 11155-9161, Tehran (Iran, Islamic Republic of); Institute for Nanoscience and Nanotechnology, Sharif University of Technology, P.O. Box 14588-89694, Tehran (Iran, Islamic Republic of)

2013-08-15T23:59:59.000Z

24

E-Print Network 3.0 - asshuku kaju wo Sample Search Results  

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

at a relatively low temperature (550C... in applications such as catalysis 1 electrochromic devices 2, 3, 4 or gas sensors 5, 6, 7. Tungsten oxide WO... vaporisation 12,...

25

E-Print Network 3.0 - aku gensho wo Sample Search Results  

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

at a relatively low temperature (550C... in applications such as catalysis 1 electrochromic devices 2, 3, 4 or gas sensors 5, 6, 7. Tungsten oxide WO... vaporisation 12,...

26

E-Print Network 3.0 - angles shakaku wo Sample Search Results  

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

at a relatively low temperature (550C... in applications such as catalysis 1 electrochromic devices 2, 3, 4 or gas sensors 5, 6, 7. Tungsten oxide WO... vaporisation 12,...

27

Effect of fluorine, nitrogen, and carbon impurities on the electronic and magnetic properties of WO{sub 3}  

SciTech Connect (OSTI)

Within electron density functional theory with the use of the Vienna ab-initio simulation package (VASP), the effect of the sp substitutional impurities of fluorine (n-type dopant), nitrogen, and carbon (p-type dopants) on the electronic and magnetic properties of tungsten trioxide WO{sub 3} is studied. It is established that these impurities induce the transformation of tungsten trioxide (nonmagnetic semiconductor) into nonmagnetic metal (WO{sub 3}:F), magnetic semimetal (WO{sub 3}:N), or magnetic metal (WO{sub 3}:C) states.

Shein, I. R.; Ivanovskii, A. L. [Russian Academy of Sciences, Institute of Solid State Chemistry (Russian Federation)

2013-06-15T23:59:59.000Z

28

Characterization of nanosized Al{sub 2}(WO{sub 4}){sub 3}  

SciTech Connect (OSTI)

Graphical abstract: TEM method allows to detect small quantities of impurities not detectable by other methods. In our case impurities of W{sub 5}O{sub 14} are detected in Al{sub 2}(WO{sub 4}){sub 3} nanopowder. Highlights: {yields} Nanosized Al{sub 2}(WO{sub 4}){sub 3} by simple co-precipitation method. {yields} Spherical particles with mean size of 22 nm distributed between 10 and 40 nm at 630 {sup o}C. {yields} XRD, DTA and TEM confirm well defined products with perfect structure. {yields} TEM locality allows detection of impurities not detectable by XRD and DTA. -- Abstract: Nanosized aluminum tungstate Al{sub 2}(WO{sub 4}){sub 3} was prepared by co-precipitation reaction between Na{sub 2}WO{sub 4} and Al(NO{sub 3}){sub 3} aqueous solutions. The powder size and shape, as well as size distribution are estimated after different conditions of powder preparation. The purity of the final product was investigated by XRD and DTA analyses, using the single crystal powder as reference. Between the specimen and the reference no difference was detected. The crystal structure of Al{sub 2}(WO{sub 4}){sub 3} nanosized powder was confirmed by TEM (SAED, HRTEM). In additional, TEM locality allows to detect some W{sub 5}O{sub 14} impurities, which are not visible by conventional X-ray powder diffraction and thermal analyses.

Nihtianova, D., E-mail: diana.nihtianova@gmail.com [Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., bl. 107, 1113 Sofia (Bulgaria); Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., bl. 11, 1113 Sofia (Bulgaria); Velichkova, N., E-mail: veli4kov@svr.igic.bas.bg [Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., bl. 11, 1113 Sofia (Bulgaria); Nikolova, R., E-mail: rosica.pn@clmc.bas.bg [Institute of Mineralogy and Crystallography, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., bl. 107, 1113 Sofia (Bulgaria); Koseva, I., E-mail: ikosseva@svr.igic.bas.bg [Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., bl. 11, 1113 Sofia (Bulgaria); Yordanova, A., E-mail: a.yordanova@svr.igic.bas.bg [Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., bl. 11, 1113 Sofia (Bulgaria); Nikolov, V., E-mail: vnikolov@svr.igic.bas.bg [Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Acad. Georgi Bonchev Str., bl. 11, 1113 Sofia (Bulgaria)

2011-11-15T23:59:59.000Z

29

H.sub.2O doped WO.sub.3, ultra-fast, high-sensitivity hydrogen sensors  

DOE Patents [OSTI]

An ultra-fast response, high sensitivity structure for optical detection of low concentrations of hydrogen gas, comprising: a substrate; a water-doped WO.sub.3 layer coated on the substrate; and a palladium layer coated on the water-doped WO.sub.3 layer.

Liu, Ping (Denver, CO); Tracy, C. Edwin (Golden, CO); Pitts, J. Roland (Lakewood, CO); Lee, Se-Hee (Lakewood, CO)

2011-03-22T23:59:59.000Z

30

Datasheet Fujitsu CELsius R570 WoRkstation Page 1 / 7 http://ts.fujitsu.com/celsius  

E-Print Network [OSTI]

Fujitsu CELsius R570 WoRkstation YouR ComPaCt "PoWERhousE" WoRkstation the CELsius R series is the dual efficiency and state-of-the-art microprocessor technology make this compact powerhouse the ideal solution

Fiebig, Peter

31

Metal-insulator transition in Na{sub x}WO{sub 3}: Photoemission spectromicroscopy study  

SciTech Connect (OSTI)

We have investigated the validity of percolation model, which is quite often invoked to explain the metal-insulator transition in sodium tungsten bronzes, Na{sub x}WO{sub 3} by photoelectron spectromicroscopy. The spatially resolved direct spectromicroscopic probing on both the insulating and metallic phases of high quality single crystals of Na{sub x}WO{sub 3} reveals the absence of any microscopic inhomogeneities embedded in the system within the experimental limit. Neither any metallic domains in the insulating host nor any insulating domains in the metallic host have been found to support the validity of percolation model to explain the metal-insulator transition in Na{sub x}WO{sub 3}.

Paul, Sanhita, E-mail: raj@iiserkol.ac.in; Ghosh, Anirudha, E-mail: raj@iiserkol.ac.in; Raj, Satyabrata, E-mail: raj@iiserkol.ac.in [Department of Physical Sciences, Indian Institute of Science Education and Research - Kolkata, Mohanpur Campus, Nadia -741252, West Bengal (India)

2014-04-24T23:59:59.000Z

32

The synthesis and structural characterization of Na[sub 3]WO[sub 3]N  

SciTech Connect (OSTI)

The authors report the discovery of a new ternary oxynitride, Na[sub 3]WO[sub 3]N. Na[sub 3]WO[sub 3]N is synthesized by exposing a eutectic melt consisting of 1/2Na[sub 2]O:1Na[sub 2]WO[sub 4] to a flow of ammonia gas at 695[degrees]C. The compound crystallizes in the acentric space group Pmn2[sub 1] with a = 7.2481(3) [angstrom], b = 6.2728(3) [angstrom], and c = 56493(2) [angstrom]. The structure was determined from synchrotron X-ray powder diffraction data and refined using the Rietveld analysis on neutron powder diffraction data. It is isostructural to the low temperature form of Li[sub 3]PO[sub 4] which can be derived from an ordered wurtzite structure-type with all the atoms having tetrahedral coordination. Alternatively, the structure can be described as being [open quotes]salt-like[close quotes] consisting of isolated (WO[sub 3]N)[sup [minus]3] tetrahedral polyanions separated by Na[sup +].

Elder, S.H. (Cornell Univ., Ithaca, NY (United States) Institut des MJateriaux de Nantes, Nantes (France)); DiSalvo, F.J. (Cornell Univ., Ithaca, NY (United States)); Parise, J.B. (State Univ. of New York at Stony Brook, Stony Brook, NY (United States)); Hriljac, J.A. (Brookhaven National Lab., Upton, NY (United States)); Richardson, J.W. Jr. (Argonne National Lab., IL (United States))

1994-01-01T23:59:59.000Z

33

Milagro Tank Temperature Study: w/ and w/o Tank Insulation  

E-Print Network [OSTI]

Milagro Tank Temperature Study: w/ and w/o Tank Insulation John A.J. Matthews and Bill Miller johnm/24 #12;Tank Temperature Study for Northern Auger · Auger North site (Colorado) is colder than Auger South. · Sept 2006: instrument Milargo outrigger tank to study freezing issues (Left photo) (Milagro experiment

34

Carrier-mediated transport of monocarboxylic acids in BeWo cell monolayers as a model of the human trophoblast  

E-Print Network [OSTI]

The monolayer-forming, human choriocarcinoma cell line, BeWo, was used to study the mechanisms of monocarboxylic acid transport across the human trophoblast. Benzoic acid, acetic acid, and lactic acid were used as markers ...

Utoguchi, Naoki; Magnusson, Malin; Audus, Kenneth L.

1999-01-01T23:59:59.000Z

35

Transport and Metabolism of Opioid Peptides across BeWo Cells, An In Vitro Model of the Placental Barrier  

E-Print Network [OSTI]

In keeping with the advance of biotechnology, cell culture becomes an important tool for investigating the transport and the metabolism phenomena. A cell line of human origin, the BeWo choriocarcinoma cell line, was used ...

Ampasavate, Chadarat; Chandorkar, Gurudatt A.; Velde, David Vande; Stobaugh, John F.; Audus, Kenneth L.

2002-01-01T23:59:59.000Z

36

Functional expression of P-glycoprotein in primary cultures of human cytotrophoblasts and BeWo cells  

E-Print Network [OSTI]

The objective of this study was to investigate the functional expression of the efflux transporter, P-glycoprotein (P-gp), in primary cultures of human cytotrophoblasts and BeWo cell monolayers. Uptake studies with primary ...

Utoguchi, Naoki; Chandorkar, Gurudatt A.; Avery, Michael; Audus, Kenneth L.

2000-01-01T23:59:59.000Z

37

Preparation of hexagonal WO{sub 3} from hexagonal ammonium tungsten bronze for sensing NH{sub 3}  

SciTech Connect (OSTI)

Hexagonal tungsten oxide (h-WO{sub 3}) was prepared by annealing hexagonal ammonium tungsten bronze, (NH{sub 4}){sub 0.07}(NH{sub 3}){sub 0.04}(H{sub 2}O){sub 0.09}WO{sub 2.95}. The structure, composition and morphology of h-WO{sub 3} were studied by XRD, XPS, Raman, {sup 1}H MAS (magic angle spinning) NMR, scanning electron microscopy (SEM), and BET-N{sub 2} specific surface area measurement, while its thermal stability was investigated by in situ XRD. The h-WO{sub 3} sample was built up by 50-100 nm particles, had an average specific surface area of 8.3 m{sup 2}/g and was thermally stable up to 450 deg. C. Gas sensing tests showed that h-WO{sub 3} was sensitive to various levels (10-50 ppm) of NH{sub 3}, with the shortest response and recovery times (1.3 and 3.8 min, respectively) to 50 ppm NH{sub 3}. To this NH{sub 3} concentration, the sensor had significantly higher sensitivity than h-WO{sub 3} samples prepared by wet chemical methods.

Szilagyi, Imre Miklos [Materials Structure and Modeling Research Group of the Hungarian Academy of Sciences, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gellert ter 4 (Hungary)], E-mail: imre.szilagyi@mail.bme.hu; Wang Lisheng; Gouma, Pelagia-Irene [Department of Materials Science and Engineering, 314 Old Engineering Building, SUNY, Stony Brook, NY 11794-2275 (United States); Balazsi, Csaba [Ceramics and Nanocomposites Laboratory, Research Institute for Technical Physics and Materials Science, H-1121 Budapest, Konkoly-Thege ut 29-33 (Hungary); Madarasz, Janos; Pokol, Gyoergy [Department of Inorganic and Analytical Chemistry, Budapest University of Technology and Economics, H-1111 Budapest, Szt. Gellert ter 4 (Hungary)

2009-03-05T23:59:59.000Z

38

Nanocrystalline Cs{sub x}WO{sub 3} particles: Effects of N{sub 2} annealing on microstructure and near-infrared shielding characteristics  

SciTech Connect (OSTI)

In order to further improve the near-infrared shielding properties of cesium tungsten bronze (Cs{sub x}WO{sub 3}) for solar filter applications, Cs{sub x}WO{sub 3} particles were prepared by solvothermal reaction method and the effects of nitrogen annealing on the microstructure and near-infrared shielding properties of Cs{sub x}WO{sub 3} were investigated. The obtained Cs{sub x}WO{sub 3} samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy and spectrophotometer. The results indicate that nanosheet-like Cs{sub x}WO{sub 3} particles with hexagonal structure began to transform into nanorods after annealed at temperature higher than 600 C. The near-infrared shielding properties of Cs{sub x}WO{sub 3} particles could be further improved by N{sub 2} annealing at 500700 C. Particularly, the 500 C-annealed Cs{sub x}WO{sub 3} samples in the N{sub 2} atmosphere showed best near-infrared shielding properties. It was suggested that the excellent near-infrared shielding ability of the 500 C-annealed Cs{sub x}WO{sub 3} samples is correlated with its minimum O/W atomic ratio and most oxygen vacancies. Highlights: N{sub 2} annealing could further improve the near-infrared (NIR) shielding of Cs{sub x}WO{sub 3}. Effects of N{sub 2} annealing on microstructure and NIR shielding of Cs{sub x}WO{sub 3} were studied. The 500 C-N{sub 2}-annealed Cs{sub x}WO{sub 3} exhibited minimum O/W ratio and most oxygen vacancies. The 500 C-N{sub 2}-annealed Cs{sub x}WO{sub 3} particles exhibited best NIR shielding properties.

Liu, Jing-Xiao, E-mail: drliu-shi@dlpu.edu.cn [School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034 (China); Institute of Multidisciplinary Research for Advanced Material, Tohoku University, Sendai, 980-8577,Japan (Japan); Shi, Fei; Dong, Xiao-Li; Xu, Qiang [School of Textile and Material Engineering, Dalian Polytechnic University, Dalian 116034 (China); Yin, Shu; Sato, Tsugio [Institute of Multidisciplinary Research for Advanced Material, Tohoku University, Sendai, 980-8577,Japan (Japan)

2013-10-15T23:59:59.000Z

39

Radiation hardness qualification of PbWO4 scintillation crystals for the CMS Electromagnetic Calorimeter  

E-Print Network [OSTI]

Ensuring the radiation hardness of PbWO4 crystals was one of the main priorities during the construction of the electromagnetic calorimeter of the CMS experiment at CERN. The production on an industrial scale of radiation hard crystals and their certification over a period of several years represented a difficult challenge both for CMS and for the crystal suppliers. The present article reviews the related scientific and technological problems encountered.

The CMS Electromagnetic Calorimeter Group; P. Adzic; N. Almeida; D. Andelin; I. Anicin; Z. Antunovic; R. Arcidiacono; M. W. Arenton; E. Auffray; S. Argiro; A. Askew; S. Baccaro; S. Baffioni; M. Balazs; D. Bandurin; D. Barney; L. M. Barone; A. Bartoloni; C. Baty; S. Beauceron; K. W. Bell; C. Bernet; M. Besancon; B. Betev; R. Beuselinck; C. Biino; J. Blaha; P. Bloch; A. Borisevitch; A. Bornheim; J. Bourotte; R. M. Brown; M. Buehler; P. Busson; B. Camanzi; T. Camporesi; N. Cartiglia; F. Cavallari; A. Cecilia; P. Chang; Y. H. Chang; C. Charlot; E. A. Chen; W. T. Chen; Z. Chen; R. Chipaux; B. C. Choudhary; R. K. Choudhury; D. J. A. Cockerill; S. Conetti; S. Cooper; F. Cossutti; B. Cox; D. G. Cussans; I. Dafinei; D. R. Da Silva Di Calafiori; G. Daskalakis; A. David; K. Deiters; M. Dejardin; A. De Benedetti; G. Della Ricca; D. Del Re; D. Denegri; P. Depasse; J. Descamps; M. Diemoz; E. Di Marco; G. Dissertori; M. Dittmar; L. Djambazov; M. Djordjevic; L. Dobrzynski; A. Dolgopolov; S. Drndarevic; G. Drobychev; D. Dutta; M. Dzelalija; A. Elliott-Peisert; H. El Mamouni; I. Evangelou; B. Fabbro; J. L. Faure; J. Fay; A. Fedorov; F. Ferri; D. Franci; G. Franzoni; K. Freudenreich; W. Funk; S. Ganjour; S. Gascon; M. Gataullin; F. X. Gentit; A. Ghezzi; A. Givernaud; S. Gninenko; A. Go; B. Gobbo; N. Godinovic; N. Golubev; P. Govoni; N. Grant; P. Gras; M. Haguenauer; G. Hamel de Monchenault; M. Hansen; J. Haupt; H. F. Heath; B. Heltsley; W. Hintz; R. Hirosky; P. R. Hobson; A. Honma; G. W. S. Hou; Y. Hsiung; M. Huhtinen; B. Ille; Q. Ingram; A. Inyakin; P. Jarry; C. Jessop; D. Jovanovic; K. Kaadze; V. Kachanov; S. Kailas; S. K. Kataria; B. W. Kennedy; P. Kokkas; T. Kolberg; M. Korjik; N. Krasnikov; D. Krpic; Y. Kubota; C. M. Kuo; P. Kyberd; A. Kyriakis; M. Lebeau; P. Lecomte; P. Lecoq; A. Ledovskoy; M. Lethuillier; S. W. Lin; W. Lin; V. Litvine; E. Locci; E. Longo; D. Loukas; P. D. Luckey; W. Lustermann; Y. Ma; M. Malberti; J. Malcls; D. Maletic; N. Manthos; Y. Maravin; C. Marchica; N. Marinelli; A. Markou; C. Markou; M. Marone; V. Matveev; C. Mavrommatis; P. Meridiani; P. Milenovic; P. Min; O. Missevitch; A. K. Mohanty; F. Moortgat; P. Musella; Y. Musienko; A. Nardulli; J. Nash; P. Nedelec; P. Negri; H. B. Newman; A. Nikitenko; F. Nessi-Tedaldi; M. M. Obertino; G. Organtini; T. Orimoto; M. Paganoni; P. Paganini; A. Palma; L. Pant; A. Papadakis; I. Papadakis; I. Papadopoulos; R. Paramatti; P. Parracho; N. Pastrone; J. R. Patterson; F. Pauss; J-P. Peigneux; E. Petrakou; D. G. Phillips II; P. Pirou; F. Ptochos; I. Puljak; A. Pullia; T. Punz; J. Puzovic; S. Ragazzi; S. Rahatlou; J. Rander; P. A. Razis; N. Redaelli; D. Renker; S. Reucroft; P. Ribeiro; C. Rogan; M. Ronquest; A. Rosowsky; C. Rovelli; P. Rumerio; R. Rusack; S. V. Rusakov; M. J. Ryan; L. Sala; R. Salerno; M. Schneegans; C. Seez; P. Sharp; C. H. Shepherd-Themistocleous; J. G. Shiu; R. K. Shivpuri; P. Shukla; C. Siamitros; D. Sillou; J. Silva; P. Silva; A. Singovsky; Y. Sirois; A. Sirunyan; V. J. Smith; F. Stckli; J. Swain; T. Tabarelli de Fatis; M. Takahashi; V. Tancini; O. Teller; K. Theofilatos; C. Thiebaux; V. Timciuc; C. Timlin; M. Titov; A. Topkar; F. A. Triantis; S. Troshin; N. Tyurin; K. Ueno; A. Uzunian; J. Varela; P. Verrecchia; J. Veverka; T. Virdee; M. Wang; D. Wardrope; M. Weber; J. Weng; J. H. Williams; Y. Yang; I. Yaselli; R. Yohay; A. Zabi; S. Zelepoukine; J. Zhang; L. Y. Zhang; K. Zhu; R. Y. Zhu

2009-12-22T23:59:59.000Z

40

Radiopurity of CaWO$_4$ Crystals for Direct Dark Matter Search with CRESST and EURECA  

E-Print Network [OSTI]

The direct dark matter search experiment CRESST uses scintillating CaWO$_4$ single crystals as targets for possible WIMP scatterings. An intrinsic radioactive contamination of the crystals as low as possible is crucial for the sensitivity of the detectors. In the past CaWO$_4$ crystals operated in CRESST were produced by institutes in Russia and the Ukraine. Since 2011 CaWO$_4$ crystals have also been grown at the crystal laboratory of the Technische Universit\\"at M\\"unchen (TUM) to better meet the requirements of CRESST and of the future tonne-scale multi-material experiment EURECA. The radiopurity of the raw materials and of first TUM-grown crystals was measured by ultra-low background $\\gamma$-spectrometry. Two TUM-grown crystals were also operated as low-temperature detectors at a test setup in the Gran Sasso underground laboratory. These measurements were used to determine the crystals' intrinsic $\\alpha$-activities which were compared to those of crystals produced at other institutes. The total $\\alpha$...

Mnster, A; Angloher, G; Bento, A; Bucci, C; Canonica, L; Erb, A; Feilitzsch, F v; Gorla, P; Gtlein, A; Hauff, D; Jochum, J; Kraus, H; Lanfranchi, J -C; Laubenstein, M; Loebell, J; Ortigoza, Y; Petricca, F; Potzel, W; Prbst, F; Puimedon, J; Reindl, F; Roth, S; Rottler, K; Sailer, C; Schffner, K; Schieck, J; Scholl, S; Schnert, S; Seidel, W; Stodolsky, L; Strandhagen, C; Strauss, R; Tanzke, A; Uffinger, M; Ulrich, A; Usherov, I; Wawoczny, S; Willers, M; Wstrich, M; Zller, A

2014-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fdb fcns wo" 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.
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41

Lattice and electronic contributions to the refractive index of CuWO{sub 4}  

SciTech Connect (OSTI)

We report an investigation of the refractive index dispersion and anisotropy in CuWO{sub 4} by means of interference measurements in two extinction directions from mid infrared to the visible region of the energy spectrum. The analysis of the refractive index dispersion yields ?(?)?=?4.5(1) for light polarization parallel to the c-axis and ?(?)?=?5.3(1) with respect to the other extinction axis. In addition, we report reflectance measurements carried out from the far infrared to the near ultraviolet to study the lattice and electronic contributions to the refractive index of CuWO{sub 4}. We have determined the wavenumbers of nine infrared active lattice modes and compared them with previous ab initio calculations. The value of the Penn gap, 7?eV, as well as the origin of a structure observed at 4.4?eV in the reflectance spectrum, is discussed in the context of the CuWO{sub 4} electronic structure.

Ruiz-Fuertes, J., E-mail: ruiz-fuertes@kristall.uni-frankfurt.de [Geowissenschaften, Goethe-Universitt, Altenhferallee 1, 60438 Frankfurt am Main (Germany); Malta-Consolider Team, Departamento de Fsica Aplicada-ICMUV, Universitat de Valncia, Dr. Moliner 50, 46100 Burjassot (Spain); Pellicer-Porres, J.; Segura, A. [Malta-Consolider Team, Departamento de Fsica Aplicada-ICMUV, Universitat de Valncia, Dr. Moliner 50, 46100 Burjassot (Spain); Rodrguez-Hernndez, P.; Muoz, A. [Malta-Consolider Team Departamento de Fsica Fundamental II, Instituto de Materiales y Nanotecnologa, Universidad de La Laguna, La Laguna, 38205 Tenerife (Spain)

2014-09-14T23:59:59.000Z

42

Chemical Engineering Science, Vol. 45, No. 7, pp. 1719-1731.1990. ooo9-2509/90 53.00 + 0.00 Printed in Grca~ Britain. Q 1wo Pergamon Press plc  

E-Print Network [OSTI]

in Grca~ Britain. Q 1wo Pergamon Press plc SIMULTANEOUS MOMENTUM, HEAT AND MASS TRANSFER WITH CHEMICAL

Aksay, Ilhan A.

43

Electrical characterization of H{sub 2}S adsorption on hexagonal WO{sub 3} nanowire at room temperature  

SciTech Connect (OSTI)

We have characterized the electrical transport properties of Au/WO{sub 3} nanowire/Au devices in ambient air and gaseous H{sub 2}S to investigate the adsorption kinetics of H{sub 2}S molecules on the surface of WO{sub 3} nanowire at room temperature. The WO{sub 3} nanowire devices exhibit increasing linear conductance and electrical hysteresis in H{sub 2}S. Furthermore, the contact type between Au electrode and WO{sub 3} nanowire can be converted from original ohmic/Schottky to Schottky/ohmic after being exposed to H{sub 2}S. These results suggest that adsorbed H{sub 2}S molecules are oxidized by holes to form hydrogen ions and S atoms, which will result in formation of hydrogen tungsten bronze and desorption of previously chemically adsorbed H{sub 2}O molecules. Adsorbed H{sub 2}S molecules can also oxidize previously adsorbed and ionized oxygen, which will release the electrons from the ionized oxygen and then weaken upward band bending at the surface of WO{sub 3} nanowire.

Liu, Binquan; Tang, Dongsheng, E-mail: dstang@hunnu.edu.cn; Zhou, Yong; Yin, Yanling; Peng, Yuehua; Zhou, Weichang; Qin, Zhu'ai; Zhang, Yong [Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, College of Physics and Information Science, Hunan Normal University, Changsha 410081 (China)

2014-10-28T23:59:59.000Z

44

A facile hydrothermal route to the large-scale synthesis of CoWO4 nanorods Liang Zhen a,, Wen-Shou Wang a  

E-Print Network [OSTI]

fabrication [8,9]. Many recent studies have demonstrated that hydrothermal process is an effectiveA facile hydrothermal route to the large-scale synthesis of CoWO4 nanorods Liang Zhen a,, Wen by a hydrothermal method using only CoCl2 and Na2WO4 as reaction reagents and distilled water as solvents

Qin, Lu-Chang

45

In-situ observation of self-regulated switching behavior in WO{sub 3-x} based resistive switching devices  

SciTech Connect (OSTI)

The transmittance of tungsten oxides can be adjusted by oxygen vacancy (V{sub o}) concentration due to its electrochromic property. Here, we report an in-situ observation of resistive switching phenomenon in the oxygen-deficient WO{sub 3-x} planar devices. Besides directly identifying the formation/rupture of dark-colored conductive filaments in oxide layer, the stripe-like WO{sub 3-x} device demonstrated self-regulated switching behavior during the endurance testing, resulting in highly consistent switching parameters after a stabilizing process. For very high V{sub o}s mobility was demonstrated in the WO{sub 3-x} film by the pulse experiment, we suggested that the electric-field-induced homogeneous migration of V{sub o}s was the physical origin for such unique switching characteristics.

Hong, D. S.; Wang, W. X.; Chen, Y. S., E-mail: yschen@aphy.iphy.ac.cn; Sun, J. R.; Shen, B. G. [Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academic of Sciences, Beijing 100190 (China)

2014-09-15T23:59:59.000Z

46

Electron microscopy analyses and electrical properties of the layered Bi{sub 2}WO{sub 6} phase  

SciTech Connect (OSTI)

The bismuth tungstate Bi{sub 2}WO{sub 6} was synthesized using a classical coprecipitation method followed by a calcination process at different temperatures. The samples were characterized by X-ray diffraction, simultaneous thermogravimetry and differential thermal analysis (TGA/DTA), scanning and transmission electron microscopy (SEM, TEM) analyses. The Rietveld analysis and electron diffraction clearly confirmed the Pca2{sub 1} non centrosymmetric space group previously proposed for this phase. The layers Bi{sub 2}O{sub 2}{sup 2+} and WO{sub 4}{sup 2?} have been directly evidenced from the HRTEM images. The electrical properties of Bi{sub 2}WO{sub 6} compacted pellets systems were determined from electrical impedance spectrometry (EIS) and direct current (DC) analyses, under air and argon, between 350 and 700 C. The direct current analyses showed that the conduction observed from EIS analyses was mainly ionic in this temperature range, with a small electronic contribution. Electrical change above the transition temperature of 660 C is observed under air and argon atmospheres. The strong conductivity increase observed under argon is interpreted in terms of formation of additional oxygen vacancies coupled with electron conduction. - Graphical abstract: High resolution transmission electron microscopy: inverse fast Fourier transform giving the layered structure of the Bi{sub 2}WO{sub 6} phase, with a representation of the cell dimensions (b and c vectors). The Bi{sub 2}O{sub 2}{sup 2+} and WO{sub 4}{sup 2?} sandwiches are visible in the IFFT image. - Highlights: Using transmission electron microscopy, we visualize the layered structure of Bi{sub 2}WO{sub 6}. Electrical analyses under argon gas show some increase in conductivity. The phase transition at 660 C is evidenced from electrical modification.

Taoufyq, A. [Institut Matriaux Microlectronique et Nanosciences de Provence, IM2NP, UMR CNRS 7334, Universit du Sud Toulon-Var, BP 20132, 83957, La Garde Cedex (France); Laboratoire Matriaux et Environnement LME, Facult des Sciences, Universit Ibn Zohr, BP 8106, Cit Dakhla, Agadir, Maroc (Morocco); Dpartement dtudes des Racteurs, Laboratoire Dosimtrie Capteurs Instrumentation, CEA Cadarache (France); Socit CESIGMASignals and Systems, 1576 Chemin de La Planquette, F 83 130 LA GARDE (France); Ait Ahsaine, H. [Laboratoire Matriaux et Environnement LME, Facult des Sciences, Universit Ibn Zohr, BP 8106, Cit Dakhla, Agadir, Maroc (Morocco); Patout, L. [Institut Matriaux Microlectronique et Nanosciences de Provence, IM2NP, UMR CNRS 7334, Universit du Sud Toulon-Var, BP 20132, 83957, La Garde Cedex (France); Benlhachemi, A.; Ezahri, M. [Laboratoire Matriaux et Environnement LME, Facult des Sciences, Universit Ibn Zohr, BP 8106, Cit Dakhla, Agadir, Maroc (Morocco); and others

2013-07-15T23:59:59.000Z

47

Raman gain from waveguides inscribed in KGd,,WO4...2 by high repetition rate femtosecond laser  

E-Print Network [OSTI]

-order nonlinear susceptibility, high ther- mal conductivity, and strong Raman conversion properties. KGW has potential for enhanced non- linear device performance through longer interaction lengths with high amorphous glasses8 and crystalline materials such as lithium niobate,9 quartz,10 Ti:sapphire,11 and KY WO4 2

48

Interface electronic structures of organic light-emitting diodes with WO3 interlayer: A study by photoelectron spectroscopy  

E-Print Network [OSTI]

Interface electronic structures of organic light-emitting diodes with WO3 interlayer: A study injec- tion and transport layers in an organic light-emitting diode (OLED) structure has been studied B.V. All rights reserved. 1. Introduction OLEDs (organic light-emitting diodes) are display de

Kim, Sehun

49

Electronic structure and magnetic properties of FeWO{sub 4} nanocrystals synthesized by the microwave-hydrothermal method  

SciTech Connect (OSTI)

This communication reports that FeWO{sub 4} nanocrystals were successfully synthesized by the microwave-hydrothermal method at 443 K for 1 h. The structure and shape of these nanocrystals were characterized by X-ray diffraction, Rietveld refinement, and transmission electron microscopy. The experimental results and first principles calculations were combined to explain the electronic structure and magnetic properties. Experimental data were obtained by magnetization measurements for different applied magnetic fields. Theoretical calculations revealed that magnetic properties of FeWO{sub 4} nanocrystals can be assigned to two magnetic orderings with parallel or antiparallel spins in adjacent chains. These factors are crucial to understanding of competition between ferro- and antiferromagnetic behavior. Highlights: Black-Right-Pointing-Pointer Monophasic FeWO{sub 4} nanocrystals were synthesized by the microwave-hydrothermal method. Black-Right-Pointing-Pointer Rietveld refinement and clusters model for monoclinic structure Black-Right-Pointing-Pointer Magnetic properties of FeWO{sub 4} nanocrystals at different temperatures.

Almeida, M.A.P. [INCTMN-DQ-Universidade Federal de Sao Carlos, Sao Carlos, P.O. Box 676, 13565-905, SP (Brazil)] [INCTMN-DQ-Universidade Federal de Sao Carlos, Sao Carlos, P.O. Box 676, 13565-905, SP (Brazil); Cavalcante, L.S., E-mail: laeciosc@bol.com.br [INCTMN-Universidade Estadual, Paulista, P.O. Box 355, 14801-907, Araraquara, SP (Brazil); Morilla-Santos, C.; Filho, P.N. Lisboa [MAv-Universidade Estadual, Paulista, P.O. Box 473, 17033-360, Bauru, SP (Brazil)] [MAv-Universidade Estadual, Paulista, P.O. Box 473, 17033-360, Bauru, SP (Brazil); Beltran, A.; Andres, J.; Gracia, L. [Department de Quimica Fisica i Analitica, Universitat Jaume I, E-12071 Castello (Spain)] [Department de Quimica Fisica i Analitica, Universitat Jaume I, E-12071 Castello (Spain); Longo, E. [INCTMN-DQ-Universidade Federal de Sao Carlos, Sao Carlos, P.O. Box 676, 13565-905, SP (Brazil) [INCTMN-DQ-Universidade Federal de Sao Carlos, Sao Carlos, P.O. Box 676, 13565-905, SP (Brazil); INCTMN-Universidade Estadual, Paulista, P.O. Box 355, 14801-907, Araraquara, SP (Brazil)

2012-11-15T23:59:59.000Z

50

Macro-and Microscale Waterflooding Performances of Crudes which form w/o Emulsions upon Mixing with Brines  

E-Print Network [OSTI]

Macro- and Microscale Waterflooding Performances of Crudes which form w/o Emulsions upon Mixing with Brines N. Rezaei and A. Firoozabadi*,, Reservoir Engineering Research Institute, 595 Lytton Avenue, Palo ABSTRACT: We study the micro- and macroscale waterflooding performances of unusual crudes which naturally

Firoozabadi, Abbas

51

Photoresponse in thin films of WO{sub 3} grown by pulsed laser deposition  

SciTech Connect (OSTI)

We report, the photoresponse behaviour of Tungsten trioxide (WO{sub 3}) films of different surface morphology, grown by using pulsed laser deposition (PLD). The Growth parameters for PLD were changed for two substrates SiO{sub 2}/Si (SO) and SrTiO{sub 3} (STO), such a way which, result nanocrystalline film on SO and needle like structured film on STO. The photoresponse is greatly modified in these two films because of two different surface morphologies. The nanocrystalline film (film on SO) shows distinct photocurrent (PC) ON/OFF states when light was turned on/off, the enhancement of PC is ?27%. Whereas, the film with needle like structure (film on STO) exhibits significantly enhanced persistent photocurrent even in light off condition, in this case, the enhancement of PC???50% at room temperature at lowest wavelength (??=?360?nm) at a nominal bias voltage of 0.1 V.

Roy Moulik, Samik [Unit for Nanoscience, Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata (India); ICON Analytical Equipment Pvt. Ltd., Kolkata (India); Samanta, Sudeshna; Ghosh, Barnali, E-mail: barnali@bose.res.in [Unit for Nanoscience, Department of Condensed Matter Physics and Material Sciences, S. N. Bose National Centre for Basic Sciences, Kolkata (India)

2014-06-09T23:59:59.000Z

52

Glued CaWO4 Detectors for the CRESST-II Experiment  

E-Print Network [OSTI]

The Cryogenic Rare Event Search with Superconducting Thermometers Phase II (CRESST-II) at the L.N.G.S in Italy is searching for Dark Matter using low-temperature calorimeters. These detectors allow to discriminate different particles by simultaneous measurement of phonons and scintillation light. The sensors used consist of superconducting tungsten thin-film thermometers, which measure the thermal effect of the phonons created in an attached absorber crystal. It has been observed that the scintillation of the CaWO4 absorber degrades during the process of depositing the tungsten film. In order to prevent this, a new technique for producing the detectors was investigated. This technique might also be valuable by expanding the range of scintillator materials suitable for producing a Dark Matter detector.

Michael Kiefer; Franz Prbst; Godehard Angloher; Irina Bavykina; Dieter Hauff; Wolfgang Seidel

2008-10-21T23:59:59.000Z

53

Exploration on anion ordering, optical properties and electronic structure in K{sub 3}WO{sub 3}F{sub 3} elpasolite  

SciTech Connect (OSTI)

Room-temperature modification of potassium oxyfluorotungstate, G2-K{sub 3}WO{sub 3}F{sub 3}, has been prepared by low-temperature chemical route and single crystal growth. Wide optical transparency range of 0.3-9.4 {mu}m and forbidden band gap E{sub g}=4.32 eV have been obtained for G2-K{sub 3}WO{sub 3}F{sub 3} crystal. Meanwhile, its electronic structure has been calculated with the first-principles calculations. The good agreement between the theorectical and experimental results have been achieved. Furthermore, G2-K{sub 3}WO{sub 3}F{sub 3} is predicted to possess the relatively large nonlinear optical coefficients. - Graphical abstract: Using the cm-size K{sub 3}WO{sub 3}F{sub 3} crystal (left upper), the transmission spectrum (right upper) and XPS valence electronic states (left lower) were measured, agreed with the ab initio results (right lower). Highlights: Black-Right-Pointing-Pointer The cm-size G2-K{sub 3}WO{sub 3}F{sub 3} single crystals are obtained. Black-Right-Pointing-Pointer Optical absorption edge and transmission range are defined for G2-K{sub 3}WO{sub 3}F{sub 3} crystal. Black-Right-Pointing-Pointer Crystal structures of all known K{sub 3}WO{sub 3}F{sub 3} polymorph modifications are determined. Black-Right-Pointing-Pointer Experimental electronic structure is consistent with the first-principles result. Black-Right-Pointing-Pointer G2-K{sub 3}WO{sub 3}F{sub 3} is predicted as a crystal with large NLO coefficients.

Atuchin, V.V. [Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090 (Russian Federation); Isaenko, L.I. [Laboratory of Crystal Growth, Institute of Geology and Mineralogy, SB RAS, Novosibirsk 630090 (Russian Federation); Kesler, V.G. [Laboratory of Physical Principles for Integrated Microelectronics, Institute of Semiconductor Physics, Novosibirsk 630090 (Russian Federation); Lin, Z.S., E-mail: zslin@mail.ipc.ac.cn [Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, P.O. Box 2711, Beijing 100190 (China); Molokeev, M.S. [Laboratory of Crystal Physics, Institute of Physics, SB RAS, Krasnoyarsk 660036 (Russian Federation); Yelisseyev, A.P.; Zhurkov, S.A. [Laboratory of Crystal Growth, Institute of Geology and Mineralogy, SB RAS, Novosibirsk 630090 (Russian Federation)

2012-03-15T23:59:59.000Z

54

Carrier-mediated transport of valproic acid in BeWo cells, a human trophoblast cell line  

E-Print Network [OSTI]

et al., 1998), asymmetric transferrin transport (Van der Ende et al., 1990; Cerneus et al., 1993), asymmetric fatty acid transport (Liu et al., 1997), choline uptake (Eaton and Sooranna, 1998a), glucose modulation of arginine transport (Eaton... Costar Corporation for support of the Cellular and Molecular Biopharmaceutics Handling Laboratory. Utoguchi, N. and Audus, K.L. (2000) Carrier-mediated transport of valproic acid in BeWo cells, a human trophoblast cell line. Int. J. Pharm. 195, 115...

Utoguchi, Naoki; Audus, Kenneth L.

2000-01-01T23:59:59.000Z

55

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

SciTech Connect (OSTI)

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

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

2013-02-15T23:59:59.000Z

56

An on sun parametric study of solar hydrogen production using WO{sub 3} photoanodes  

SciTech Connect (OSTI)

The solar production of hydrogen using photoactive electrodes is a topic receiving much attention in recent years. The use of thin metal oxide films as photoanodes allows the water splitting reaction to occur at a much lower applied voltage than would be necessary with a straight electrolysis process. The University of Nevada Las Vegas in collaboration with the UK based firm Hydrogen Solar and funded by the United States Department of Energy, has developed a prototype of this type of cell using a WO{sub 3} photoanode. An on-sun test facility has been constructed by the UNLV Center for Energy Research (CER) where a study is being conducted with regard to the effects various design parameters on the rate of hydrogen evolution. Parameters being studied include electrolyte temperature, electrolyte flow rate, electrolyte resistivity, applied voltage, and membrane to electrode spacing. The data collected is used in a parametric study of the cell performance. The results of this study are then used to establish general trends as to the effects of these parameters on the performance of the cells outside of a laboratory environment. (author)

Halford, Christopher K. [UNLV Center for Energy Research, 4505 S. Maryland Parkway, Las Vegas, NV 89154 (United States); Boehm, Robert F. [UNLV Center for Energy Research, 4505 S. Maryland Parkway, UNLV Box 454027, Las Vegas, NV 89154-4027 (United States)

2011-01-15T23:59:59.000Z

57

Synthesis and photoluminescence properties of NaLaMgWO{sub 6}:RE{sup 3+} (RE = Eu, Sm, Tb) phosphor for white LED application  

SciTech Connect (OSTI)

Highlights: ? NaLa{sub 1?x}MgWO{sub 6}:xRE{sup 3+} phosphors were synthesized by solid-state reaction method. ? Compared with Y{sub 2}O{sub 3}:Eu{sup 3+}, NaLaMgWO{sub 6}:Eu{sup 3+} performed better luminescence properties. ? The results demonstrated NaLaMgWO{sub 6} as a suitable host for RE{sup 3+}-doping. -- Abstract: Single phase of NaLa{sub 1?x}MgWO{sub 6}:xRE{sup 3+} (0 < x ?1) (RE = Eu, Sm, Tb) phosphors were prepared by solid-state reaction method. X-ray diffraction, scanning electron microscopy, the morphology energy-dispersive X-ray spectroscopy, UVvis diffuse reflectance spectra and photoluminescence were used to characterize the samples. Under the light excitation, NaLaMgWO{sub 6}:Eu{sup 3+}, NaLaMgWO{sub 6}:Sm{sup 3+} and NaLaMgWO{sub 6}:Tb{sup 3+}, phosphors showed the characteristic emissions of Eu{sup 3+} ({sup 5}D{sub 0} ? {sup 7}F{sub 4,3,2,1}), Sm{sup 3+} ({sup 4}G{sub 5/2} ? {sup 6}H{sub 5/2,7/2,9/2}), and Tb{sup 3+} ({sup 5}D{sub 4} ? {sup 7}F{sub 6,5,4,3}), respectively. The intensity of the red emission for Na(La{sub 0.6}Eu{sub 0.4})MgWO{sub 6} is 2.5 times higher than that of (Y{sub 0.95}Eu{sub 0.05}){sub 2}O{sub 3} under blue light irradiation. The quantum efficiencies of the entitled phosphors excited under 394 nm and 464 nm are also investigated and compared with commercial phosphors Y{sub 2}O{sub 3}:Eu{sup 3+}, Sr{sub 2}Si{sub 5}N{sub 8}:Eu{sup 2+} and Y{sub 3}A{sub 5}G{sub 12}:Ce{sup 3+}. The results demonstrated NaLaMgWO{sub 6}:RE{sup 3+} phosphors as potential candidates for white light emitting diode pumped by UV or blue chip.

Hou, Jingshan [College of Materials Science and Engineering, Dong Hua University, Shanghai 200051 (China) [College of Materials Science and Engineering, Dong Hua University, Shanghai 200051 (China); CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China); College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Yin, Xin [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China) [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China); College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Huang, Fuqiang, E-mail: huangfq@mail.sic.ac.cn [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China) [CAS Key Laboratory of Materials for Energy Conversion, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050 (China); College of Chemistry and Molecular Engineering, Peking University, Beijing 100871 (China); Jiang, Weizhong, E-mail: jwzh@dhu.edu.cn [College of Materials Science and Engineering, Dong Hua University, Shanghai 200051 (China)] [College of Materials Science and Engineering, Dong Hua University, Shanghai 200051 (China)

2012-06-15T23:59:59.000Z

58

RAPID/Roadmap/18-FD-b | 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 Home Page on Office of InspectorConcentrating Solar PowerstoriesNrelPartnerType Jump to:Co Jump to:Quito,15-TX-a < RAPID‎

59

RAPID/Roadmap/1-FD-b | Open Energy Information  

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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: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revisionEnvReviewNonInvasiveExploration JumpSanyalTempWellheadWahkiakum CountyPzero-FD-b BLM Land Use Plan

60

RAPID/Roadmap/14-FD-b | Open Energy Information  

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61

RAPID/Roadmap/7-FD-b | 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 revisionEnvReviewNonInvasiveExplorationUT-g Grant of Access Permit5-ID-a Drilling andNM-b6-UT-b StormCA-d

62

RAPID/Roadmap/12-FD-b | 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:FAQ < RAPID Jump to: navigation, search RAPIDColorado < RAPID‎ |1-TX-a State Cultural1-TX-cbCO-a

63

RAPID/Roadmap/17-FD-b | 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:FAQ < RAPID Jump to: navigation, search RAPIDColorado <

64

RAPID/Roadmap/5-FD-b | 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:FAQ < RAPID Jump to: navigation, search RAPIDColorado <17-HI-a4-WA-a State Exploration Process

65

RAPID/Roadmap/8-FD-b | 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:FAQ < RAPID Jump to: navigation, search RAPIDColorado <17-HI-a4-WA-a7-CA-e

66

Multidrug resistance-associated protein (MRP) isoforms and the breast cancer resistance protein (BCRP) mediate sulfate conjugate efflux out of BeWo cells  

E-Print Network [OSTI]

, the BeWo cell line was used as a model of placental trophoblast cells and we examined the fate of two common sulfotransferase substrates, 4-nitrophenol and acetaminophen. At 0.5200 ?M, acetaminophen sulfate did not alter the accumulation of the BCRP...

Audus, Kenneth L.; Mitra, Pallabi

2010-01-01T23:59:59.000Z

67

The Presence of Inducible Cytochrome P450 Types 1A1 and 1A2 in the BeWo Cell Line  

E-Print Network [OSTI]

The activity and inducibility of cytochrome P450 systems (CYP1A1:1A2) of the human placenta were assessed in a representative human trophoblast-like cell line, BeWo. The activity of CYP1A1 and CYP1A2 in microsome preparations ...

Avery, Michael; Meek, C. E.; Audus, Kenneth L.

2003-01-01T23:59:59.000Z

68

Journal of The Electrochemical Society, 162 (1) H65-H71 (2015) H65 Enhancing Majority Carrier Transport in WO3 Water Oxidation  

E-Print Network [OSTI]

. By balancing electron/hole extraction with photon absorption in an optimized 30 nm WO3 particulate electrode reserved. Manuscript submitted October 9, 2014; revised manuscript received November 18, 2014. Published to chemical fuel by decomposing water into hydrogen and oxygen.1­9 Among inorganic materials that catalyze

Osterloh, Frank

69

Dynamic Asphaltene-Resin Exchange at the Oil/Water Interface: Time-Dependent W/O Emulsion Stability for Asphaltene/Resin  

E-Print Network [OSTI]

Dynamic Asphaltene-Resin Exchange at the Oil/Water Interface: Time-Dependent W/O Emulsion Stability for Asphaltene/Resin Model Oils Xiaoli Yang, Vincent J. Verruto, and Peter K. Kilpatrick* Department of Chemical was used to determine the time-dependent stability of water-in- oil emulsions in which asphaltenes

Kilpatrick, Peter K.

70

Low background detector with enriched 116CdWO4 crystal scintillators to search for double beta decay of 116Cd  

E-Print Network [OSTI]

A cadmium tungstate crystal boule enriched in $^{116}$Cd to 82% with mass of 1868 g was grown by the low-thermal-gradient Czochralski technique. The isotopic composition of cadmium and the trace contamination of the crystal were estimated by High Resolution Inductively Coupled Plasma Mass-Spectrometry. The crystal scintillators produced from the boule were subjected to characterization that included measurements of transmittance and energy resolution. A low background scintillation detector with two $^{116}$CdWO$_4$ crystal scintillators (586 g and 589 g) was developed. The detector was running over 1727 h deep underground at the Gran Sasso National Laboratories of the INFN (Italy), which allowed to estimate the radioactive contamination of the enriched crystal scintillators. The radiopurity of a third $^{116}$CdWO$_4$ sample (326 g) was tested with the help of ultra-low background high purity germanium $\\gamma$ detector. Monte Carlo simulations of double $\\beta$ processes in $^{116}$Cd were used to estimate ...

Barabash, A S; Bernabei, R; Boiko, R S; Cappella, F; Caracciolo, V; Chernyak, D M; Cerulli, R; Danevich, F A; Di Vacri, M L; Dossovitskiy, A E; Galashov, E N; Incicchitti, A; Kobychev, V V; Konovalov, S I; Kovtun, G P; Kudovbenko, V M; Laubenstein, M; Mikhlin, A L; Nisi, S; Poda, D V; Podviyanuk, R B; Polischuk, O G; Shcherban, A P; Shlegel, V N; Solopikhin, D A; Stenin, Yu G; Tretyak, V I; Umatov, V I; Vasiliev, Ya V; Virich, V D

2011-01-01T23:59:59.000Z

71

Ball-milling, a novel extraction process for production of W from WO{sub 3} using Mg as a reductant  

SciTech Connect (OSTI)

The synthesis of tungsten (W) metal by the chemical reduction of tungsten oxide (WO{sub 3}), using magnesium (Mg) as a reductant, has been investigated by the mechanical alloying process. Complete transformation to W was observed after 60 sec of milling. W metal was recovered from the reaction products of W and magnesium oxide (MgO) by dilute nitric acid leaching. The powders were characterized by X-ray Diffraction (XRD), Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques. Electron microscopic studies indicated that nano-meter sized grains were present in the W powder after leaching.

Mukhopadhyay, D.K.; Suryanarayana, C.; Fores, F.H.; Prisbrey, K.A. [Univ. of Idaho, Moscow, ID (United States)

1996-06-01T23:59:59.000Z

72

Preparation of magnetic Fe{sub 3}O{sub 4}/SiO{sub 2}/Bi{sub 2}WO{sub 6} microspheres and their application in photocatalysis  

SciTech Connect (OSTI)

Graphical abstract: Display Omitted Highlights: ? We described the preparation and characterization of the Fe{sub 3}O{sub 4}/SiO{sub 2}/Bi{sub 2}WO{sub 6} magnetic microspheres composites. ? The photocatalytic activities of the composites were also investigated. ? With the combination of photocatalysts and Fe{sub 3}O{sub 4}/SiO{sub 2}, good stability and magnetic separability can be achieved. ? And to the best of our knowledge, this is the first report concerning Bi{sub 2}WO{sub 6} nanoparticles loaded on Fe{sub 3}O{sub 4}/SiO{sub 2} particles. -- Abstract: Magnetic Fe{sub 3}O{sub 4}/SiO{sub 2}/Bi{sub 2}WO{sub 6} microspheres with photocatalytic properties have been synthesized using a silica layer for bonding (adhering Bi{sub 2}WO{sub 6} to Fe{sub 3}O{sub 4}). The morphology, composition and magnetic properties of the Fe{sub 3}O{sub 4}/SiO{sub 2}/Bi{sub 2}WO{sub 6} composites were characterized by X-ray diffraction, transmission electron microscopy, Fourier transform infrared spectroscopy, vibrating sample magnetometry, and BET surface area analysis. The activity of the material in photocatalytic decoloration of aqueous rhodamine B (RhB) solution under visible light was evaluated. The results showed that Bi{sub 2}WO{sub 6} combined well with the magnetic Fe{sub 3}O{sub 4}/SiO{sub 2} nanoparticles. The Fe{sub 3}O{sub 4}/SiO{sub 2}/Bi{sub 2}WO{sub 6} composites were spherical in shape, having a mean size of 2 ?m. The spent catalyst could be recycled with only slight decline in catalytic activity. It is envisaged that the stability, reusability, and magnetic nature of the Fe{sub 3}O{sub 4}/SiO{sub 2}/Bi{sub 2}WO{sub 6} catalyst warrants its application in photocatalysis.

Chen, Su-Hua; Yin, Zhen [Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China)] [Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China); Luo, Sheng-Lian, E-mail: sllou@hnu.edu.cn [Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China)] [Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China); Au, Chak-Tong [Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China) [Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China); Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong (China); Li, Xue-Jun [Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China)] [Key Laboratory of Jiangxi Province for Ecological Diagnosis-Remediation and Pollution Control, Nanchang Hangkong University, Nanchang 330063 (China)

2013-02-15T23:59:59.000Z

73

Low background detector with enriched 116CdWO4 crystal scintillators to search for double beta decay of 116Cd  

E-Print Network [OSTI]

A cadmium tungstate crystal boule enriched in $^{116}$Cd to 82% with mass of 1868 g was grown by the low-thermal-gradient Czochralski technique. The isotopic composition of cadmium and the trace contamination of the crystal were estimated by High Resolution Inductively Coupled Plasma Mass-Spectrometry. The crystal scintillators produced from the boule were subjected to characterization that included measurements of transmittance and energy resolution. A low background scintillation detector with two $^{116}$CdWO$_4$ crystal scintillators (586 g and 589 g) was developed. The detector was running over 1727 h deep underground at the Gran Sasso National Laboratories of the INFN (Italy), which allowed to estimate the radioactive contamination of the enriched crystal scintillators. The radiopurity of a third $^{116}$CdWO$_4$ sample (326 g) was tested with the help of ultra-low background high purity germanium $\\gamma$ detector. Monte Carlo simulations of double $\\beta$ processes in $^{116}$Cd were used to estimate the sensitivity of an experiment to search for double $\\beta$ decay of $^{116}$Cd.

A. S. Barabash; P. Belli; R. Bernabei; R. S. Boiko; F. Cappella; V. Caracciolo; D. M. Chernyak; R. Cerulli; F. A. Danevich; M. L. Di Vacri; A. E. Dossovitskiy; E. N. Galashov; A. Incicchitti; V. V. Kobychev; S. I. Konovalov; G. P. Kovtun; V. M. Kudovbenko; M. Laubenstein; A. L. Mikhlin; S. Nisi; D. V. Poda; R. B. Podviyanuk; O. G. Polischuk; A. P. Shcherban; V. N. Shlegel; D. A. Solopikhin; Yu. G. Stenin; V. I. Tretyak; V. I. Umatov; Ya. V. Vasiliev; V. D. Virich

2011-08-13T23:59:59.000Z

74

UV absorption properties of ceria-modified compositions within the fluorite-type solid solution CeO{sub 2}-Y{sub 6}WO{sub 12}  

SciTech Connect (OSTI)

A new fluorite-type solid solution domain has been evidenced in the system (1-x) CeO{sub 2}-x/7 Y{sub 6}WO{sub 12}{open_square}{sub 2} using the amorphous citrate route. All the studied phases (0{<=}x{<=}1) crystallize in a cubic-type symmetry. Diffuse reflectance spectra reveal a strong optical absorption between 380 and 400 nm. All substituted compositions spectral selectivities are estimated suitable for application as inorganic UV absorbers. The non linear variation observed in the optical gap values between Y{sub 6}WO{sub 12} and CeO{sub 2} is attributed to the presence of the cerium 4f-block band. Additionally, Time Resolved Microwave Conductivity (TRMC) experiment and phenol photodegradation analyses carried out on the Ce{sub 0.81}Y{sub 0.16}W{sub 0.03}O{sub 1.95}{open_square}{sub 0.05} (x=0.19) composition do not indicate any photocalatytic activity for this material. - Graphical abstract: Diffuse reflectance spectra of the Ce-Y-W-O samples calcined at 1000 deg. C.

Chevire, Francois [UMR CNRS 6226 'Sciences Chimiques de Rennes', equipe 'Verres et Ceramiques', Universite de Rennes 1, 35042 Rennes cedex (France); Munoz, Francisco [UMR CNRS 6226 'Sciences Chimiques de Rennes', equipe 'Verres et Ceramiques', Universite de Rennes 1, 35042 Rennes cedex (France); Baker, Charles F. [UMR CNRS 6226 'Sciences Chimiques de Rennes', equipe 'Verres et Ceramiques', Universite de Rennes 1, 35042 Rennes cedex (France); Tessier, Franck [UMR CNRS 6226 'Sciences Chimiques de Rennes', equipe 'Verres et Ceramiques', Universite de Rennes 1, 35042 Rennes cedex (France)]. E-mail: Franck.Tessier@univ-rennes1.fr; Larcher, Olivier [UMR CNRS 6226 'Sciences Chimiques de Rennes', equipe 'Verres et Ceramiques', Universite de Rennes 1, 35042 Rennes cedex (France); Boujday, Souhir [Laboratoire d'Ingenierie des Materiaux et des Hautes Pressions, CNRS UPR 1311, Universite Paris 13, 99 Avenue J. B. Clement, 93430 Villetaneuse (France); Colbeau-Justin, Christophe [Laboratoire d'Ingenierie des Materiaux et des Hautes Pressions, CNRS UPR 1311, Universite Paris 13, 99 Avenue J. B. Clement, 93430 Villetaneuse (France); Marchand, Roger [UMR CNRS 6226 'Sciences Chimiques de Rennes', equipe 'Verres et Ceramiques', Universite de Rennes 1, 35042 Rennes cedex (France)

2006-10-15T23:59:59.000Z

75

Mechanism of WO{sub 3} reduction and carburization in CH{sub 4}/H{sub 2} mixtures leading to bulk tungsten carbide powder catalysts  

SciTech Connect (OSTI)

The mechanism of bulk tungsten carbide catalysts synthesis from WO{sub 3} in CH{sub 4}/H{sub 2} mixtures has been studied using temperature programmed reactions associated with CH{sub 4}/D{sub 2} exchange reaction and in situ X-ray diffraction. Various experimental parameters have been studied such as partial pressures of reactants, heating rate, mass of precursor, or flow rate in order to determine the most important steps occurring during the transformation of WO{sub 3} to WC. It is shown that at temperatures below 900--923 K the diffusion within the solid particles is slow with respect to the rate of reduction of the surface, allowing the carburization of the surface in the presence of a core still partially oxidized. At higher temperatures, the diffusion is rapid, leading to a uniform reduction within the solid. In this case, the surface is continuously replenished in oxygen thus inhibiting the activation of methane and allowing the carburization to proceed only when the solid is deeply reduced. An inhibiting effect of hydrogen pressure on the interaction of methane with the surface has also been evidenced, an effect which excludes the possibility of an independent control of the reduction process from that of carburization. Finally the role of space velocity has also been elucidated.

Loefberg, A.; Frennet, A.; Leclercq, G.; Leclercq, L.; Giraudon, J.M.

2000-01-01T23:59:59.000Z

76

Direct Water Splitting under Visible Light with Nanostructured Hematite and WO3 Photoanodes and a GaInP2 Photocathode  

SciTech Connect (OSTI)

A p-GaInP{sub 2} photocathode was paired with nanostructured hematite and tungsten trioxide photoanodes to investigate the utility of these systems for direct water splitting under visible light illumination. For the hematite system, under illumination at open-circuit conditions, the potential of hematite shifts cathodically and that of the GaInP{sub 2} shifts anodically. Under short-circuit condition and visible light illumination, the combination of the two photoelectrodes can split water, though with a very low rate of a few {micro}A/cm{sup 2} even at an intensity of 1 W/cm{sup 2}. It was determined that the very low photocurrent from the hematite nanorod photoelectrode limits the short-circuit current of the two-photoelectrode combination. Similar potential shifts were observed with the nanostructured WO{sub 3}/GaInP{sub 2} combination. However, at light intensities below 0.2 W/cm{sup 2}, the short-circuited combination would not split water due to an insufficient potential difference. Above 0.2 W/cm{sup 2}, the combination can split water under visible light, with {approx}20 {micro}A/cm{sup 2} obtained at 1 W/cm{sup 2}. A linear photocurrent-light intensity relationship was observed and was attributed to efficient charge transfer and a low recombination of the charge carriers. The bandgap and the associated absorption limit of WO{sub 3} remain a challenge for a higher efficiency system.

Wang, H.; Deutsch, T.; Turner, J. A.

2008-01-01T23:59:59.000Z

77

Final results of an experiment to search for 2beta processes in zinc and tungsten with the help of radiopure ZnWO4 crystal scintillators  

E-Print Network [OSTI]

A search for the double beta decay of zinc and tungsten isotopes has been performed with the help of radiopure ZnWO4 crystal scintillators (0.1-0.7 kg) at the Gran Sasso National Laboratories of the INFN. The total exposure of the low background measurements is 0.529 kg yr. New improved half-life limits on the double beta decay modes of 64Zn, 70Zn, 180W, and 186W have been established at the level of 10^{18}-10^{21} yr. In particular, limits on double electron capture and electron capture with positron emission in 64Zn have been set: T_{1/2}(2\

P. Belli; R. Bernabei; F. Cappella; R. Cerulli; F. A. Danevich; S. d'Angelo; A. Incicchitti; V. V. Kobychev; D. V. Poda; V. I. Tretyak

2011-10-18T23:59:59.000Z

78

Search for double beta decay of Zinc and Tungsten with the help of low-background ZnWO4 crystal scintillators  

E-Print Network [OSTI]

Double beta processes in 64-Zn, 70-Zn, 180-W, and 186-W have been searched for with the help of large volume (0.1-0.7 kg) low background ZnWO4 crystal scintillators at the Gran Sasso National Laboratories of the INFN. Total time of measurements exceeds 10 thousands hours. New improved half-life limits on double electron capture and electron capture with positron emission in 64-Zn have been set, in particular (all the limits are at 90% C.L.): T1/2(0nu2EC)> 1.1e20 yr, T1/2(2nuECbeta+)>7.0e20 yr, and T1/2(0nuECbeta+)>4.3e20 yr. The different modes of double beta processes in 70-Zn, 180-W, and 186-W have been restricted at the level of 1e17-1e20 yr.

P. Belli; R. Bernabei; F. Cappella; R. Cerulli; F. A. Danevich; B. V. Grinyov; A. Incicchitti; V. V. Kobychev; V. M. Mokina; S. S. Nagorny; L. L. Nagornaya; S. Nisi; F. Nozzoli; D. V. Poda; D. Prosperi; V. I. Tretyak; S. S. Yurchenko

2008-11-14T23:59:59.000Z

79

w/o parents 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1  

E-Print Network [OSTI]

1 mg 2 pg 2 mg 2 pg 2 e 2 ELOD m=1 m=2 m=3 m=4 m=8 w/ parents w/o parents 0 2 4 6 8 10 12 14 0 2 4 1. Expected LOD score for 1000 nuclear families with 4 offspring with and without using parental (12% total variance).8 #12;Supplementary Table 2. Power lost and Type I error when ignoring imbalance1

Liang, Liming

80

JOURNAL DE PHYSIQUE Colloque C6, supplment au no 12, Tome 35, Dcembre 1974,page C6-497 PLASTIC DEFORMATION OF A Cu-1.92 w/o Fe ALLOY  

E-Print Network [OSTI]

JOURNAL DE PHYSIQUE Colloque C6, supplément au no 12, Tome 35, Décembre 1974,page C6-497 PLASTIC DEFORMATION OF A Cu-1.92 w/o Fe ALLOY F. HORNSTEIN and M. RON Department of Materials Engineering. Les modifications des para- mètres Mossbauer de la raie yo sont interprétées comme indiquant un

Paris-Sud XI, Université de

Note: This page contains sample records for the topic "fdb fcns wo" from the National Library of EnergyBeta (NLEBeta).
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81

RAPID/Roadmap/3-FD-b (1) | Open Energy Information  

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82

File:05-FD-b - DrillingApplicationProcess.pdf | 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 NoPublic Utilities Address:011-DNAMTEEncroachmentPermit.pdfa - DrillingPreApplicationProcess.pdf Jump to:

83

RAPID/Roadmap/3-FD-b (2) | 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:FAQ < RAPID Jump to: navigation, search RAPIDColorado <17-HI-a < RAPID‎gWA-cCO-c State3-FD-a

84

File:01-FD-b - LandUsePlanAmendmentProcess.pdf | 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 NoPublic Utilities Address:011-DNA Jump37.California: EnergyFeilden Clegg| Open EnergyFifeOverallFlow-1.pdf Jump

85

Refinement of the crystal structure of the high-temperature phase G0 in (NH4)2WO2F4 (powder, x-ray, and neutron scattering)  

SciTech Connect (OSTI)

The (NH4)2WO2F4 compound undergoes a series of phase transitions: G0 -> 201 K -> G1 -> 160 K -> G2, with a significant change in entropy ( S1 ~ Rln10 at the G0 -> G1 transition), which indicates significant orientational disordering in the G0 phase and the order disorder type of the phase transition. X-ray diffraction is used to identify the crystal structure of the G0 phase as rhombohedral (sp. gr. Cmcm, Z = 4), determine the lattice parameters and the positions of all atoms (except hydrogen), and show that [WO2F4]2 ions can form a superposition of dynamic and static orientational disorders in the anionic sublattice. A determination of the orientational position of [NH4]+ ions calls for the combined method of elastic and inelastic neutron scattering. Inelastic neutron scattering is used to determine the state of hindered rotation for ammonium ions in the G0 phase. Powder neutron diffraction shows that the orientational disorder of NH4 ions can adequately be described within the free rotation approximation.

Novak, D. M. [Joint Institute for Nuclear Research, Dubna, Russia; Smirnov, Lev S [Alikhanov Institute for Theoretical and Experimental Physics, Moscow, Russia; Kolesnikov, Alexander I [ORNL; Voronin, Vladimir [Institute of Metal Physics, Russia; Berger, I. F. [Institute of Metal Physics, Russia; Laptash, N. M. [Institute of Chemistry, Vladivostok, Russia; Vasil'ev, N. M. [Kirensky Institute of Physics, Krasnoyarsk, Russia; Flerov, I. N. [Kirensky Institute of Physics, Krasnoyarsk, Russia

2013-01-01T23:59:59.000Z

86

inside shuttle sign wo date  

Office of Environmental Management (EM)

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 Jun Jul(Summary) "of EnergyEnergyENERGYWomen Owned SmallOf TheViolationsRio Blanco ResponsibleSuite 600, 1901

87

inside shuttle sign wo date  

Energy Savers [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 GeneralDepartment of EnergyofProjectflash2007-21Attachment.pdfMr. SteveEnergy3 AUDIT

88

Data:284d2fdb-872a-486b-8952-825187a5fe88 | 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 Home Page on Office of48d9ff47edf3 Noc7e1a8ffe No revision has been approved7af2e2cf0e85488a7f No revision0-95dfba96a082

89

Data:074fdb62-6bca-4596-a287-08000af535fe | 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 Home Page on Office of InspectorConcentratingRenewable Solutions6ae4e73fc No revision1b85ad20b2cdf28ec1e5-b3d8671416237-08000af535fe

90

Data:0864c109-7047-4687-86fd-b7532913e0eb | 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 Home Page on Office of InspectorConcentratingRenewable Solutions6ae4e73fc Nof7e0a4fbc9b253bedd No revision has been4-9367450ddd88

91

Data:1946731f-1fdb-417f-83c5-d699e95c6364 | 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 Home Page on Office of48d9ff47edf3 No revision has beenba5b1d371fdc-b6c0-9cd6b0d70ef9 No3bdf6fd5ebc461d1003207 Nod699e95c6364 No

92

Data:Fdb03902-6219-43b8-bd40-b787e6256cce | 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 been approved forcd976b98236 Noa566193f57 No revision hasc88f412c5cbf

93

Data:7d60fdb0-b014-4889-8061-e473d0810742 | 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 Home Page on Office695810186 No revision has6a0216321b Nof667a9d7d88cc1e8c1443c No revisionec72d2ae94e-024e27e25c1b

94

Data:7d725892-041e-4625-b90b-8fdb94869df6 | 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 Home Page on Office695810186 No revision has6a0216321b Nof667a9d7d88cc1e8c1443c Nod-5000bbb042b0 No revision has been

95

Data:38ec5fdb-d150-4a75-bcba-6597e323101c | 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 Home Page on Office of48d9ff47edf3 Noc7e1a8ffef-15f046e6d97e No revision has7f7767f21828 No revision6c6933267 No revision

96

Data:3f1d8803-a349-4fdb-8846-de8aa194937b | 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 Home Page on Office of48d9ff47edf3a87dcc95b No revision has been approved64ec514e6-43e5-952b-08655b5a42de No6-de8aa194937b No

97

Cationic disorder and Mn{sup 3+}/Mn{sup 4+} charge ordering in the B? and B? sites of Ca{sub 3}Mn{sub 2}NbO{sub 9} perovskite: a comparison with Ca{sub 3}Mn{sub 2}WO{sub 9}  

SciTech Connect (OSTI)

We describe the preparation, crystal structure determination, magnetic and transport properties of two novel Mn-containing perovskites, with a different electronic configuration for Mn atoms located in B site. Ca{sub 3}Mn{sup 3+}{sub 2}WO{sub 9} and Ca{sub 3}Mn{sup 3+/4+}{sub 2}NbO{sub 9} were synthesized by standard ceramic procedures; the crystallographic structure was studied from X-ray powder diffraction (XRPD) and neutron powder diffraction (NPD). Both phases exhibit a monoclinic symmetry (S.G.: P2{sub 1}/n); Ca{sub 3}Mn{sub 2}WO{sub 9} presents a long-range ordering over the B sites, whereas Ca{sub 3}Mn{sub 2}NbO{sub 9} is strongly disordered. By in-situ NPD, the temperature evolution of the structure study presents an interesting evolution in the octahedral size (?MnO?) for Ca{sub 3}Mn{sub 2}NbO{sub 9}, driven by a charge ordering effect between Mn{sup 3+} and Mn{sup 4+} atoms, related to the anomaly observed in the transport measurements at T?160 K. Both materials present a magnetic order below T{sub C}=30 K and 40 K for W and Nb materials, respectively. The magneto-transport measurements display non-negligible magnetoresistance properties in the paramagnetic regime. - Graphical abstract: Comparison between the octahedron size and the magnetic behaviour for Ca{sub 3}Mn{sub 2}NbO{sub 9} in the temperature region where the charge and magnetic order occur. Display Omitted - Highlights: Two novel Mn-containing double perovskites were obtained by solid-state reactions. Both double perovskites are monoclinic (P2{sub 1}/n) determined by XRPD and NPD. Ca{sub 3}Mn{sub 2}WO{sub 9} contains Mn{sup 3+} while Ca{sub 3}Mn{sub 2}NbO{sub 9} includes mixed-valence cations Mn{sup 3+}/Mn{sup 4+}. Ca{sub 3}Mn{sub 2}NbO{sub 9} presents a charge-ordering effect between Mn{sup 3+} and Mn{sup 4+} evidenced by NPD. The magnetic and transport studies evidenced the charge ordering in Ca{sub 3}Mn{sub 2}NbO{sub 9}.

Lpez, C.A., E-mail: calopez@unsl.edu.ar [INTEQUI-rea de Qumica General e Inorgnica Dr. G. F. Puelles, Facultad de Qumica, Bioqumica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700 San Luis (Argentina); Centro Atmico Bariloche, Comisin Nacional de Energa Atmica and Instituto Balseiro, Universidad Nacional de Cuyo, 8400S.C. de Bariloche, Ro Negro (Argentina); Saleta, M.E. [Centro Atmico Bariloche, Comisin Nacional de Energa Atmica and Instituto Balseiro, Universidad Nacional de Cuyo, 8400S.C. de Bariloche, Ro Negro (Argentina); Pedregosa, J.C. [INTEQUI-rea de Qumica General e Inorgnica Dr. G. F. Puelles, Facultad de Qumica, Bioqumica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, 5700 San Luis (Argentina); Snchez, R.D. [Centro Atmico Bariloche, Comisin Nacional de Energa Atmica and Instituto Balseiro, Universidad Nacional de Cuyo, 8400S.C. de Bariloche, Ro Negro (Argentina); Alonso, J.A. [Instituto de Ciencia de Materiales de Madrid, CSIC, Cantoblanco, E-28049 Madrid (Spain); and others

2014-02-15T23:59:59.000Z

98

wo of the do pe Institute  

E-Print Network [OSTI]

(Vienna): " " z Falkowski ( ation" Conc aslinger (Ma s" on G Rese dea/Debrece Romanian C Oleg Zhurav

Schubart, Christoph

99

Wo?ch nan sole?y  

E-Print Network [OSTI]

yo ap pichkannen 1 pou 1 rakonte yo yon lot ti istwa. Jodi a, li resi ap fe yo kontan. Se sa k fe n ap mande tout moun pou yo rete tou dousman, san pale pou yo sa koute: W O C H N A N S O L E Y Chapit 1 Siklon David te fek ap mache sou kat (4...) mwa depi 1 te fin krabinen tout bagay net andeyo a. Se vre, moun gouvenman yo te fe sa yo te kapab pou manye soulaje mize pep la. Men, se pa tout moun ki te rive jwenn yon lasistans. Se konsa Melani pa t jwenn pesonn moun pou lonje men ba li. Se...

Paultre, Carrie?; Ross, Jim D.; Freeman, Bryant C.

2000-01-01T23:59:59.000Z

100

TriWo AG | Open Energy Information  

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Note: This page contains sample records for the topic "fdb fcns wo" from the National Library of EnergyBeta (NLEBeta).
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101

Data:Ea23816f-e2c6-4155-9eba-fdb5244fbf51 | 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 Home Pagec-01b596aa1744b55997c1cc No revision hasa3e396ee3eb No revision has beena593118f6ad9 No revision has been

102

Data:F2257f25-b98e-45fd-b0ec-e07448329e91 | 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 been approved for this page. It ise7c5ddfdbf9 No revision has been approved for7a46da80c No

103

Data:65a7c0c2-a202-4453-a22e-ca1fdb08a358 | 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 Home Page on Office695810186 No revision has been approved fore6e8eee4495-afb210887c9b No-c72af72a6dfa3e7-ea4c2ad40820 No

104

Data:283c6b29-20c3-4fdb-a853-231d46865a1d | 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 Home Page on Office of48d9ff47edf3 Noc7e1a8ffe No revision has been approved7af2e2cf0e85488a7f No revision hasc35f431265

105

Data:B346c696-d98d-48c5-a800-fdb2bc767ee5 | 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 Home Page onb5-dcc1fcffd1f2 No revision has38865d08 No revision has been28a07c58 No revisionaf48efb No revisionbde7-dcd9196762c7

106

Data:B3db79c4-e40f-4db0-8c17-4af059d02fdb | 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 Home Page onb5-dcc1fcffd1f2 No revision has38865d08 No revision has been28a07c58 No55f15b30b No4474ee20d7c No revision

107

Data:61ec4a4f-6fdb-4f35-8c28-99d9d9e670ae | 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 Home Page on Office695810186 No revision has been approved for thisbade-2c5cfacaa2ee71e0827b2fdc No revision has

108

Data:61fdb651-9a0d-4449-901a-362cfa2cf1ab | Open Energy Information  

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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: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office695810186 No revision has been approved for thisbade-2c5cfacaa2ee71e0827b2fdc No revisionabcb88195831c2568fdc

109

Data:01780f9a-bf37-4f01-a4fd-b7e54d0e8023 | 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 Home Page on Office of InspectorConcentratingRenewable Solutions LLC JumpCrow Lake7ba5898d4 Noff1284ccb9a Nof82-9a8b-fdc5e5ec4296

110

Data:44cdd6cb-13cb-4fdb-bfd4-60e5a1b2d9b6 | 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 Home Page on Office of48d9ff47edf3a87dcc95b No revisione66e17fc7f7 No revision has been approvede0-b543d3e6c208 No60e5a1b2d9b6 No

111

Data:4e7731c2-6fdb-4461-bfa6-a235b9bb3746 | Open Energy Information  

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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: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of48d9ff47edf3a87dcc95b Nobfef8fa58cf7 No revisionf377c06978a3 No revision2-6ccb8efb60a6 No revision

112

Data:0f468f93-07aa-4fdb-8b0b-b90559f5cad4 | Open Energy Information  

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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: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office of48d9ff47edf3 No revision has been approved for thise2856597771 No revision has

113

Data:19fdb2c9-387a-4cd0-b230-ae5d4111271f | Open Energy Information  

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114

Data:9e366f6f-db7f-4ee9-9394-0e0971ecbd43 | Open Energy Information  

Open Energy Info (EERE)

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115

Data:A1033a3d-3ede-44fd-b543-8d8c7d856c76 | Open Energy Information  

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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: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home Page on Office695810186 Nod2db5b31cb44 No revision hasdb5-b05c-76b1be5a4007ad8-8e5c-a300c92ae7d1 No revision3-8d8c7d856c76 No

116

Data:A3709c35-62e7-4aac-a19e-380fdb9ba3c6 | 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 Home Page on Office695810186 Nod2db5b31cb44 No revision-b209-069dd1fd7c05a97219c78 No revision has been4753495f No

117

Data:Fc78c10e-7004-48fd-b34c-e47b0ef78187 | 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 been approved for thisd785796ade4709e636e4428acdb15335744d9-a00122654f5c46d4e439 No

118

Data:Fdb25b5a-4d4c-4cdd-b504-6226d98e734b | 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 been approved forcd976b98236 Noa566193f57 No revision

119

Data:8fdb4c27-5005-44ba-a494-4a8a848295d7 | 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 Home Page on Office695810186 No revisione0a2d50bdf No18fed1db58-e7b51f638865 Nod57b1532a58ffee9-3707-4c99-a646-5fe8054d199ad7 No

120

Data:982fa5fd-b44a-4196-8c97-39a136f8ea38 | 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 Home Page on Office695810186 No revisione0a2d50bdf35248292f1de-f2ac9a2bd9c0 No revisionc69285db444 No revision5b2d6aa6 Noa136f8ea38

Note: This page contains sample records for the topic "fdb fcns wo" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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121

Data:9c5902fd-b9dd-4db9-abbd-26fd481a4024 | 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 Home Page on Office695810186 Nod2db5b31cb44 No revision has been approved095c1f504b No revision has been1dec57de29cb

122

Data:C937b22d-ddb3-4096-93be-06fdb8f72f69 | 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 Home Page onb5-dcc1fcffd1f2bb71-d4159a938742 No revision617ab3133c91 No1-42ae-abc9-a85634ae0b63 No revision has

123

Data:7b152ce7-c5ae-4c24-a050-3fdb10688529 | 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 Home Page on Office695810186 No revision has6a0216321b Nof667a9d7d88 No809d65569c0 Nob6a1826b076 No revision has been

124

Data:7e173d10-c429-45fd-b46c-2ea652fe29af | 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 Home Page on Office695810186 No revision has6a0216321bfd-b46c-2ea652fe29af No revision has been approved for this page. It is

125

Data:2fdb9e31-7542-415b-a616-e46572f51c28 | 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 Home Page on Office of48d9ff47edf3 Noc7e1a8ffe No869d7ced0c4 No revision has

126

Data:3478f2e3-fdb4-4e33-928e-ae982bc6b906 | 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 Home Page on Office of48d9ff47edf3 Noc7e1a8ffe No869d7ced0c4aa77f45ad4a No4059736ce1f No revision862b6a0e9f3 No revisiond3c483ad

127

Data:3fdb68c2-4238-40c6-9138-dc4c86f670a5 | 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 Home Page on Office of48d9ff47edf3a87dcc95b No revision has beend26-1acc36863a1d No revision-4180-98e7-bd8326f55cec5c771edf53bf

128

Office of Enterprise Assessments Review of the Pantex Plant 2014...  

Energy Savers [EERE]

and plume projections that were not provided to the IC until immediately before termination of the exercise. (See Finding F-CNS-3 and OFI-CNS-19.) Last and most significantly,...

129

ENHANCING THE COMPETENCY OF THE CORRECTIONAL NURSING WORKFORCE  

E-Print Network [OSTI]

School of Nursing Deborah Shelton, PhD, RN, NE-BC, CCHP, FAAN E. Jane Martin Professor Associate Dean Butler, MA University of Connecticut School of Nursing: Denise Panosky, DNP, RN, CNE, CCHP, FCNS Funded

Oliver, Douglas L.

130

E-Print Network 3.0 - actuator ball bearings Sample Search Results  

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

(BB) Fluid-Dynamic Bearing (FDB) Servo Techniques... spindle motor bearings depending on mechanical design, i.e., ball bearing and fluid-dynamic bearing... . Spindle Motor ......

131

Pd/Ni-WO3 anodic double layer gasochromic device  

DOE Patents [OSTI]

An anodic double layer gasochromic sensor structure for optical detection of hydrogen in improved response time and with improved optical absorption real time constants, comprising: a glass substrate; a tungsten-doped nickel oxide layer coated on the glass substrate; and a palladium layer coated on the tungsten-doped nickel oxide layer.

Lee, Se-Hee; Tracy, C. Edwin; Pitts, J. Roland; Liu, Ping

2004-04-20T23:59:59.000Z

132

Characterization of Nanoporous WO3 Films Grown via Ballistic...  

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

on the preparation and characterization of high surface area, supported nanoporous tungsten oxide films prepared under different conditions on polished polycrystalline Ta and...

133

Polymerization of Formaldehyde and Acetaldehyde on Ordered (WO3...  

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

of their monomers and oligomers into the gas phase. The heats of H2CO and CH3CHO sublimation and polymerization determined based on our experiments are in good agreement...

134

MESSAGE: WIA W/O CLOSING REF CLOSING REF  

Office of Legacy Management (LM)

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135

Characterization of Nanoporous WO3 Films Grown via Ballistic Deposition. |  

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 SitesStanding

136

Preparation and Characterization of Monodispersed WO3 Nanoclusters on  

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

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137

Bureau of Land Management - WO-210 - Contact Information | 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 NoPublic Utilities Address: 160Benin: EnergyBoston Areais a villageBucyrus,Burbank,Alternative in an EA | Open

138

Real-WoRld Technology TesTs  

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 Administration the1 -the Mid-Infrared at 278, 298, andEpidermalOxide FuelReal-TimeLarge volumes of

139

Real-WoRld Technology TesTs  

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 Administration the1 -the Mid-Infrared at 278, 298, andEpidermalOxide FuelReal-TimeLarge volumes

140

Phase relations of the Li{sub 2}O-Ta{sub 2}O{sub 5}-B{sub 2}O{sub 3} and Li{sub 2}O-WO{sub 3}-B{sub 2}O{sub 3} systems and promising nonlinear optical compounds in K{sub 2}O-Ta{sub 2}O{sub 5}-B{sub 2}O{sub 3} system  

SciTech Connect (OSTI)

The subsolidus phase equilibria of the Li{sub 2}O-Ta{sub 2}O{sub 5}-B{sub 2}O{sub 3}, K{sub 2}O-Ta{sub 2}O{sub 5}-B{sub 2}O{sub 3} and Li{sub 2}O-WO{sub 3}-B{sub 2}O{sub 3} systems have been investigated mainly by means of the powder X-ray diffraction method. Two ternary compounds, KTaB{sub 2}O{sub 6} and K{sub 3}Ta{sub 3}B{sub 2}O{sub 12} were confirmed in the system K{sub 2}O-Ta{sub 2}O{sub 5}-B{sub 2}O{sub 3}. Crystal structure of compound KTaB{sub 2}O{sub 6} has been refined from X-ray powder diffraction data using the Rietveld method. The compound crystallizes in the orthorhombic, space group Pmn2{sub 1} (No. 31), with lattice parameters a = 7.3253(4) A, b = 3.8402(2) A, c = 9.3040(5) A, z = 2 and D{sub calc} = 4.283 g/cm{sup 3}. The powder second harmonic generation (SHG) coefficients of KTaB{sub 2}O{sub 6} and K{sub 3}Ta{sub 3}B{sub 2}O{sub 12} were five times and two times as large as that of KH{sub 2}PO{sub 4} (KDP), respectively.

Cai Gemei; Wang, W.Y.; Li, M. [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080 (China); Lou, Y.F. [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080 (China); Center of Condensed Matter and Materials Physics, School of Sciences, Beihang University, Beijing 100083 (China); Sun, Y.P. [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080 (China); Chen, X.L. [Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, P.O. Box 603, Beijing 100080 (China)], E-mail: chenx29@aphy.iphy.ac.cn

2009-01-08T23:59:59.000Z

Note: This page contains sample records for the topic "fdb fcns wo" from the National Library of EnergyBeta (NLEBeta).
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We encourage you to perform a real-time search of NLEBeta
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141

Data:42f39f3d-bc80-422a-b5a6-8e9efa27fdb7 | 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 Home Page on Office of48d9ff47edf3a87dcc95b No revision has beend26-1acc36863a1df4498ed9aae

142

Data:3ad55a4a-ce9c-4fdb-9a5b-0a7c0e09dc06 | 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 Home Page on Office of48d9ff47edf3 Noc7e1a8ffef-15f046e6d97e No revisionfb5101c21c4f Noe4-4fb6-a05f-3cb32d2e6ccc Noa7c0e09dc06 No

143

Student Loan Debt Management O V E R V I E WO V E R V I E WO V E R V I E WO V E R V I E W  

E-Print Network [OSTI]

forgiven remains a taxable income Extended Repayment Plans Unconsolidated debt must be at least $30 000Unconsolidated debt must be at least $30,000 Consolidation loans start at $7,500 · *Based on $25,500 Subsidized

Kammen, Daniel M.

144

Styron 663 W/O Additives DatapointLabs Report # 7903: Styron 663 W/O Additives PAGE 1 OF 17  

E-Print Network [OSTI]

application, not A6 1.230E-07 Tb good for this wide of a range Viscosity vs Shear Rate F nw tauw d1w d2w a1w a

Kostic, Milivoje M.

145

Optical properties of nanocrystalline WO{sub 3} and WO{sub 3-x} thin films prepared by DC magnetron sputtering  

SciTech Connect (OSTI)

The optical properties of tungsten trioxide thin films prepared by DC magnetron sputtering, with different oxygen vacancy (V{sub o}) concentration, have been studied by spectrophotometry and photoluminescence (PL) emission spectroscopy. Absorption and PL spectra show that the films exhibit similar band gap energies, E{sub g} ? 2.9?eV. The absorption spectra of the films show two pronounced absorption bands in the near-infrared region. One peak (P1) is located at approximately 0.7?eV, independent of V{sub o} concentration. A second peak (P2) shifts from 0.96?eV to 1.16?eV with decreasing V{sub o} concentration. Peak P1 is assigned to polaron absorption due to transitions between tungsten sites (W{sup 5+}???W{sup 6+}), or an optical transition from a neutral vacancy state to the conduction band, V{sub o}{sup 0}???W{sup 6+}. The origin of peak P2 is more uncertain but may involve +1 and +2 charged vacancy sites. The PL spectra show several emission bands in the range 2.07 to 3.10?eV in the more sub-stoichiometric and 2.40 to 3.02?eV in the less sub-stoichiometric films. The low energy emission bands agree well with calculated optical transition energies of oxygen vacancy sites, with dominant contribution from neutral and singly charged vacancies in the less sub-stoichiometric films, and additional contributions from doubly charged vacancy sites in the more sub-stoichiometric films.

Johansson, Malin B., E-mail: majo4400@gmail.com; Niklasson, Gunnar A.; sterlund, Lars, E-mail: lars.osterlund@angstrom.uu.se [Division of Solid State Physics, Department of Engineering Sciences, The ngstrm Laboratory, Uppsala University, P.O. Box 534, SE-75121 Uppsala (Sweden); Zietz, Burkhard [Division of Physical Chemistry, Department of Chemistry, The ngstrm Laboratory, Uppsala University, P.O. Box 523, SE-75120 Uppsala (Sweden)

2014-06-07T23:59:59.000Z

146

Journal Citation Reports JCRSCISSCIIF 15% Web of ScienceWoS  

E-Print Network [OSTI]

Effectiveness Research, Clinical Trial Center, NTU Hospital Institute of Epidemiology and Preventive Medicine system regulates directed cell migration Institute of Molecular Medicine, NTU College of Medicine Feng) and Gefitinib NTU Hospital and NTU College of Medicine , Yi-Hsien Shih, Pin-Chun Chen, Chia-Yu Chu IF10

Wu, Yih-Min

147

Journal Citation Reports JCRSCISSCIIF5%Web of ScienceWoS  

E-Print Network [OSTI]

, Hanna S. Graduate Institute of Biochemistry and Molecular Biology, College of Medicine, NTU Structural Carbamazepine- Induced Toxic Effects and HLA-B*1502 Screening in Taiwan NEW ENGLAND JOURNAL OF MEDICINE Volume Imaging, NTU Hospital and College of Medicine, NTU Department of Laboratory Medicine, NTU Hospital

Wu, Yih-Min

148

Abnormal current-voltage characteristics of WO{sub 3}-doped SnO{sub 2}  

SciTech Connect (OSTI)

Thanks to the high sensitivity and low production cost, oxide semiconductor gas sensors have been widely used for the detection of noxious or explosive gases in air. A number of different sensing materials and device structures have been proposed and developed. All these gas sensors require the heating of sensing elements for high sensitivity and fast response and they have to be equipped with the heaters. Because of the required heating to high temperature, however, most of the gas sensors experience difficulties such as vulnerability to thermal shock, high power consumption, poor long-term stability, etc. It has been increasingly in demand for various industrial applications to develop so-called {open_quote}no-heater{close_quote} or {open_quote}low-power{close_quote} semiconductor gas sensors.

Dong Hyun Yun; Hyung-Ki Hong; Hyun Woo shin [LG Electronics Research Center, Seoul (Korea, Republic of)] [and others

1996-12-31T23:59:59.000Z

149

Hydrothermal growth and photoluminescence property of textured CdWO4 scintillator films  

E-Print Network [OSTI]

- cessing control and inspection,3 dosimetry,4 and nuclear weapons and waste monitoring.5,6 Most studies

Cao, Guozhong

150

Informatica Propedeuse Voorjaar 2013-2014 week Datum Ma Di Wo Do Vr  

E-Print Network [OSTI]

/304,306/308 Bjr2 = bijeenkomst over jaar 2, aanvang 10.30 u. (B02) Db Databases Dr. M. Emmerich B02 Studsem (2e jr): 1e jrs zijn welkom wDb Werkgr. Databases Dr. M. Emmerich 302/304,306/308 Pointer workshop Leidsche Dr. M.M. Bonsangue B02, B02/B03 Studsem Studentenseminarium Dr. M. Emmerich/Dr. T. Stefanov 174 w

Emmerich, Michael

151

Informatica en Wiskunde, Propedeuse, Voorjaar 2013-2014 week Datum Ma Di Wo Do Vr  

E-Print Network [OSTI]

.30 u. Db/wDb Databases Dr. M. Emmerich B02 Pointer workshop, Leidsche Flesch wDb Werkgroep Databases Dr. M. Emmerich 302/304,306/308 IKR Inleiding Kansrekening Dr. M.O. Heydenreich Studsem (2e jr): 1e jrs zijn welkom Lo/wLo Logica Dr. M.M. Bonsangue B02, B02/B03 Studsem Studentenseminarium Dr. M. Emmerich

Emmerich, Michael

152

Alkaline phosphatase, a biochemical marker of cellular differentiation of BeWo choriocarcinoma cell line  

E-Print Network [OSTI]

NaCl-treated (control). In contrast, the ALP specific activity of TM from Caco-2 cells which differentiated spontaneously did not show an increase with butyrate treatment. We separated TM into a light membrane (LM) fraction (I 7/40%) and a heavy...

Lu, Wei

2012-06-07T23:59:59.000Z

153

Schedule of mastercourses Computer Science, Spring 2013-2014 Di Wo Do Vr  

E-Print Network [OSTI]

. Arbab 405 AiDM Advances in Data Mining Dr. W.J. Kowalczyk 405 ESS Embedded Systems and Software Dr.Ir. T BMPN BMPN BMPN BMPN BMPN CMB CMB BMPN DiesvieringCCC ESS ESS CCC CCC ESS ESS ESS ESS ESS ESS ESS ESS CCC CCC CCC CCC CCC CCC CCC CCC CCC CCC Good Friday ESS ESS University ClosedAscension Day el cid week

Emmerich, Michael

154

Journal Citation Reports JCRSCISSCIIF 15% Web of ScienceWoS  

E-Print Network [OSTI]

Thrombosuction and Tirofiban Infusion (ITTI) trial Department of Internal Medicine, NTU Hospital Department

Wu, Yih-Min

155

Journal Citation Reports JCRSCISSCIIF 15% Web of ScienceWoS  

E-Print Network [OSTI]

. Browne / Peter D. Burbelo / Ploenchan Chetchotisakd / Yupin Suputtamongkol / Sasisopin Kiertiburanakul Campbell / Denise Hyde / Andres Brainsky / Dickens Theodore / the ELEVATE Study Group IF10 NEW ENGLAND Angkasekwinai / Boonmee Sathapatayavongs / Po-Ren Hsueh / Chi-Chang Shieh / Margaret R. Brown / Wanna

Wu, Yih-Min

156

Physical properties and surface/interface analysis of nanocrystalline WO3  

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 Administration the1 - September 2006Photovoltaic Theory and Modeling Los AlamosAerosol. |] a -"

157

Polymerization of Formaldehyde and Acetaldehyde on Ordered (WO3)3 Films on  

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 Administration the1 - September 2006Photovoltaic TheoryPlantElectrodes. |Ceramics. |Pt(111). | EMSL

158

Optical Thermometry through Green Upconversion Emissions -Codoped CaWO4 Phosphor  

E-Print Network [OSTI]

fluoride glass possesses high efficiency and low excitation power, however, the maximum operating tem Xu, Xiaoyang Gao1 , Longjiang Zheng1 , Peng Wang, Zhiguo Zhang? , and Wenwu Cao2 Condensed Mater on the fluorescence of Er3þ ions in other host materials. With the efficient upconversion fluorescence, the Er3þ /Yb3þ

Cao, Wenwu

159

E-Print Network 3.0 - ash sekitanbai wo Sample Search Results  

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

-sulfurcoal combustionby-products generated by using both conventional and clean coal technologies. A clean coal ash Source: Wisconsin-Milwaukee, University of - Department...

160

LLNV-WO1000-2009-0002-EA | 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 Home Page on Office of InspectorConcentrating Solar Powerstories on climateJuno Beach, Florida:KenyonKosciuskoLCALEDSLLNL

Note: This page contains sample records for the topic "fdb fcns wo" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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161

LLNV-WO1000-2009-0034-CX | 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 Home Page on Office of InspectorConcentrating Solar Powerstories on climateJuno Beach, Florida:KenyonKosciuskoLCALEDSLLNL34-CX Jump

162

Formaldehyde Polymerization on (WO3)3/TiO2(110) Model Catalyst. | 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 MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibilityFieldMinds" Give form to the requester. Do

163

Formation of Monodisperse (WO3)3 Clusters on Ti02(110). | 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 MayAtmospheric Optical Depth7-1D: Vegetation ProposedUsing ZirconiaPolicyFeasibilityFieldMinds" Give form to

164

DOI-BLM-NV-WO10-2014-0002-CX | 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 Home Page on Office of InspectorConcentratingRenewable Solutions LLC JumpCrow Lake Wind107 CX at North BrawleyDNA JumpDNACXCX

165

WO3 and HPA based system for ultra high stability Innovation for Our Energy  

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 RankCombustion |Energy Usage »of| Department of EnergyDepartment of5Department of EnergyFuture

166

Competitive Oxidation and Reduction of Aliphatic Alcohols over (WO3)3  

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 SubstationCleanCommunity Involvement andMISR, and4 N ACompetitions: Student

167

Microsoft Word - 01-3199 Rev 6 Final w_o signature  

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 JunDatastreamsmmcrcalgovInstrumentsrucLas Conchas recovery challenge fundProject QuarterlyDepartmentConducting basicThis1 !ID

168

Strain Accommodation By Facile WO6 Octahedral Distortion and Tilting During  

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 Administrationcontroller systemsBiSiteNeutron Scattering4American'!Stores Catalogof SVO Research

169

RadioWoRld | radioworld.com Vol. 35, No. 8 March 23, 2011  

E-Print Network [OSTI]

ItoR IN ChIEF t. Carter Ross latIN aMERICa EdItoR IN ChIEF Rogelio ocampo latIN aMERICa EdItoR Karina gerardiENt / SalES dIRECtoR Eric trabb ADVERTISING SALES REPRESENTATIVES US EaSt & latIN aMERICa: John Casey and subscription renewal, please visit radioworld.com and click on the "Subscription" button. to submit letters

170

Sensorless Control Method and Apparatus for A Motor Drive System http://www.wipo.int/pctdb/en/wo.jsp?IA=WO2005%2F008890&DISPLAY=STATUS  

E-Print Network [OSTI]

position and/or speed under variable types of loading conditions. A control system model (300) is generated that allows variable setting of an initial rotor position to generate estimated rotor position and speed controller (322), a current controller (324), and a variable load component (310). During operation, EKF

Wu, Bin

171

Using Heuristics to Solve the Dedicated Aircraft Recovery Problem ...  

E-Print Network [OSTI]

Nov 12, 2001 ... *Email: mi chael@loeve . i nfo. FDB (Log ist ic Deve lop m ent), A lberts lund, Den ma rk t Email: k im @car m en.se. C a r m en Consu lt ing,...

2001-11-12T23:59:59.000Z

172

Effect of Bisphenol A on Drug Efflux in BeWo, a Human Trophoblast-like Cell Line  

E-Print Network [OSTI]

Bisphenol A (BPA) is a monomer of polycarbonate plastics that has estrogenic activities and has been shown to be a substrate for multidrug resistant efflux mechanisms, specifically, P-glycoprotein. Since the natural hormone ...

Audus, Kenneth L.; Jin, H.

2005-01-01T23:59:59.000Z

173

Catalytic Dehydration of 2-Propanol on (WO3)3 Clusters on TiO2(110). | 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 MayAtmospheric Optical Depth7-1D: Vegetation Proposed New Substation Sites ProposedOccupational Health Services|Dimethyl Ether.

174

Disperses leo em gua (o/w) ou gua em leo (w/o) Fase contnua / fase dispersa.  

E-Print Network [OSTI]

cristalinas Sistemas trifásicos : o + LC + w (Friberg) 3-fases #12;Emulsões de petróleo Asphaltene-resin colloidal aggregates formed by association of asphaltenes and resins add rigidity to the oil-water interface. Asphaltene-resin colloidal Aggregate Resin Molecule Amplified View of the Interface Aqueous phase #12;Com

Loh, Watson

175

Microsoft Word - Hanford Site Traffic Safety Improvements FACT SHEET V5 WO One Way Option.docx  

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 andMappingENVIRONMENTALHYDROPOWER MEETINGR&DHighImproved

176

Mr. Jack W. Anderson Interim Laboratory Director Fermilab  

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

Manager Enclosure: As Stated cc: M. Michels, wencl. bc: P. Siebach, CH-STS, wencl. A. Kenney, wo encl. M. McKown, CH-OCC, wo encl. T. Dykhuis, wencl. J. Scott, FSO, wo...

177

Correlation between surface chemistry, density and band gap in...  

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

of WO3 films. The XPS analyses indicate the formation of stoichiometric WO3 with tungsten existing in fully oxidized valence state (W6+). However, WO3 films grown at high...

178

c12) United States Patent (54) METHODS AND SYSTEMS FOR PROVIDING  

E-Print Network [OSTI]

. Brizendine et al. wo wo wo FOREIGN PATENT DOCUMENTS W0-93/13488 A1 W0-94/04979 A1 W0-99/12103 A2 7/1993 3

Shamos, Michael I.

179

Nitrogen-incorporation induced changes in the microstructure...  

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

in the microstructure of nanocrystalline WO3 thin films. Abstract: Nitrogen doped tungsten oxide (WO3) films were grown by reactive magnetron sputter-deposition by varying the...

180

www.kit.edu RESEARCH TO BUSINESS  

E-Print Network [OSTI]

auf den Campus Ost ein. Wo kommt der Kraftstoff her? Ist der Verbrennungsmotor ein Auslaufmodell? Wie

Stein, Oliver

Note: This page contains sample records for the topic "fdb fcns wo" 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

A T IT S A T IT S S C I E N C E SECURITY WO R ST B E S T A Special...  

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

Department of Energy A Special Investigative Panel President's Foreign Intelligence Advisor y Board JUNE 1999 P F I A B A P P E N D I X Chronology of Events A-1 Chronology of...

182

The effect of air charge temperature on performance, ignition delay and exhaust emissions of diesel engines using w/o emulsions as fuel  

SciTech Connect (OSTI)

Most of the work performed on the use of water/oil emulsions in diesel engines showed that increasing the water content in the emulsified fuel was effective in reducing NO/sub x/ and soot emissions. Unfortunately, the increase in water content in the emulsified fuel also increases the ignition delay and may cause diesel knock. One way to reduce the ignition delay is to increase the air charge temperature. In this study, the effect of increasing the air charge temperature on ignition delay, performance and exhaust emissions was investigated. The experiments were conducted on a CLR diesel engine using base-line diesel fuel number2 and stabilized macro-emulsions containing 15 percent, 30 percent and 45 percent water by volume.

Afify, E.M.; Korah, N.S.; Dickey, D.W.

1987-01-01T23:59:59.000Z

183

doped Y3Al5O12, NaBi(WO4)2 and LiNbO3 crystals as optical temperature sensors  

E-Print Network [OSTI]

the possible applications one should note temperature monitoring in highly corrosive media, electrical power ratio (ACR). Thus the capabilities of lithium niobate crystal doped with Yb3+ ions as a material for OTS

Paris-Sud XI, Universit de

184

doped Y3Al5O12, NaBi(WO4)2 and LiNbO3 crystals as optical temperature sensors  

E-Print Network [OSTI]

the possible applications one should note temperature monitoring in highly corrosive media, electrical power OTS based on absorption coefficient ratio (ACR). Thus the capabilities of lithium niobate crystal

Paris-Sud XI, Universit de

185

1528 IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIOIJFS ml 40 wo 7, JULY 1992 Modal S-Matrix Design of Metal Finned Waveguide  

E-Print Network [OSTI]

received August 19, 199 1; revised January 25, 1992. J. Bomemann is with the Department of E. C. E., University of Victoria, P.O. Box 3055, Victoria, BC v8W3P6, Canada. F. Arndt is with the Microwave Department

Bornemann, Jens

186

A T IT S A T IT S S C I E N C E SECURITY WO R ST B E S T A Special...  

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

compromises by scientists with foreign allegiances and highlighted the need for special care in implementing formal clearance procedures for involvement in classified work. BIG,...

187

R.K.Blarney Preece.N.. Van Oosterzee,P. and James.D. (1995) 'lWo Way Track -Biodiversity Conservationand  

E-Print Network [OSTI]

- Biodiversity Conservationand Ecotourism: an Investigation of Linkages, Mutual Benefits and Future Opportunities.S. and Wall. G. (1999)Ecotourism: towards congruencebetweentheory and practice. Tourism Management20, 123-132. Scheyvens.R. (1999)Ecotourism and the empowermentof local communities. Tourism Management 20, 245

188

affect gene activity: Topics by E-print Network  

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

the desired activity. Here we show that re-emulsification of wo emulsions gives water-in-oil-buffered saline; wo, water-in-oil; wow, water-in-oil-in- water. 0003-2697 -...

189

Reflection High-Energy Electron Diffraction Beam-Induced Structural...  

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

Beam-Induced Structural and Property Changes on WO3 Thin Films. Reflection High-Energy Electron Diffraction Beam-Induced Structural and Property Changes on WO3 Thin...

190

Refinement of the HCUP Quality Indicators: Appendix 6 Indicator Definitions  

E-Print Network [OSTI]

CC MIN BOWEL PROC W CC MIN BOWEL PROC W/O CC UGI PROC AGE >17 W CC UGI PROC AGE >17 W/O CC OTH GI OR PROC W CC OTH GI

Davies, Sheryl M.; Geppert, Jeffrey; McClellan, Mark; McDonald, Kathryn M.; Romano, Patrick S.; Shojania, Kaveh G.

2001-01-01T23:59:59.000Z

191

The Decidability of the Existential Theory of the Poset of Recursively Enumerable Degrees with Jump Relations  

E-Print Network [OSTI]

and Slaman [HaSl] (cf. [SlWo]), Jockusch and Soare (unpublished, cf. [Lr1]), Jockusch and Slaman [Jo

Lempp, Steffen

192

Greg Pfister Affiliation: Free at Last!  

E-Print Network [OSTI]

Space WoW Second Life IM service Amazon EC2, Google App Engine, Enomaly, Cassat (energy), Intuit Quick

193

Preventing CO poisoning: Tracking the impact of legislative and  

E-Print Network [OSTI]

· Exemptions for buildings w/o or non-adjacent: ­ Fossil fuel burning furnaces, boilers, water heaters

194

STM Tip Catalyzed Adsorption of Thiol Molecules at the Nanometer Scale  

E-Print Network [OSTI]

among the metal oxides of transition elements.20 Because of the great oxidizing power of WO3, it has of tungsten carbide (WC) and tungsten trioxide (WO3).19 WO3 has been known as one of the strongest acid solids

Kim, Sehun

195

Data:5916b8f8-5103-415a-93cd-5d7d0d891ccb | 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 Home Page on Office of48d9ff47edf3a87dcc95b3da-78f7ef0b79f6 No446b-9fca-d407954a4b84bf7e33133cb0 No revisionedc25fdb2 No

196

Data:59228537-e03e-48bf-b976-bfe51a2a3191 | 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 Home Page on Office of48d9ff47edf3a87dcc95b3da-78f7ef0b79f6 No446b-9fca-d407954a4b84bf7e33133cb0 No revisionedc25fdb2 No586887

197

Data:59288e14-7eb0-4d0c-aceb-a0667267ee37 | 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 Home Page on Office of48d9ff47edf3a87dcc95b3da-78f7ef0b79f6 No446b-9fca-d407954a4b84bf7e33133cb0 No revisionedc25fdb2

198

RAPID/Roadmap/11-FD-d | 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 revisionEnvReviewNonInvasiveExploration JumpSanyalTempWellheadWahkiakum CountyPzero-FD-b BLM Land Use1-FD-b

199

RAPID/Roadmap/13-FD-c | 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 revisionEnvReviewNonInvasiveExploration JumpSanyalTempWellheadWahkiakum CountyPzero-FD-b3 Land Use13-FD-b

200

RAPID/Roadmap/13-FD-d | 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 revisionEnvReviewNonInvasiveExploration JumpSanyalTempWellheadWahkiakum CountyPzero-FD-b3 Land Use13-FD-b3-FD-d

Note: This page contains sample records for the topic "fdb fcns wo" 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

RAPID/Roadmap/9-FD-c | 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 revisionEnvReviewNonInvasiveExplorationUT-g Grant of Access Permit5-ID-a Drilling7-HI-ce < RAPID‎b9-FD-b

202

File:09-FD-c - EISProcess.pdf | 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 NoPublicIDAPowerPlantSitingConstruction.pdf Jump to:TXATransmissionSiting.pdf Jump to: navigation, search9-FD-b -FD-c

203

File:09-FD-e - DOE NEPA Process.pdf | 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 NoPublicIDAPowerPlantSitingConstruction.pdf Jump to:TXATransmissionSiting.pdf Jump to: navigation, search9-FD-b

204

RAPID/Roadmap/4-FD-d | 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:FAQ < RAPID Jump to: navigation, search RAPIDColorado <17-HI-a <3-FD-d3-WA-b Land4-FD-b

205

RAPID/Roadmap/4-HI-a | 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:FAQ < RAPID Jump to: navigation, search RAPIDColorado <17-HI-a <3-FD-d3-WA-b Land4-FD-b4-HI-a State

206

RAPID/Roadmap/4-ID-a | 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:FAQ < RAPID Jump to: navigation, search RAPIDColorado <17-HI-a <3-FD-d3-WA-b Land4-FD-b4-HI-a

207

RAPID/Roadmap/4-MT-a | 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:FAQ < RAPID Jump to: navigation, search RAPIDColorado <17-HI-a <3-FD-d3-WA-b Land4-FD-b4-HI-a4-MT-a

208

S U NTM U L T R ATM 10 WO R K S T A T I O N THE POWERFUL, EXPANDABLE ULTRA SYSTE M THAT ' S E A SY TO A FFORD.  

E-Print Network [OSTI]

: +886-2-514-0567 THAILAND: +662-636-1555 TURKEY: +90-212-236-3300 UNITED ARAB EMIRATES: +971-4-366-333 UNITED KINGDOM: +44-1-276-20444 UNITED STATES: +1-800-821-4643 VENEZUELA: +58-2-286-1044 WORLDWIDE

MacAdam, Keith

209

S U NTM U L T R ATM 6 0 WO R K S T A T I O N THE NEXT LEVEL IN MULTIPROCE S S ING WORKS TATION S.  

E-Print Network [OSTI]

ARAB EMIRATES: +971-4-366-333 UNITED KINGDOM: +44-1-276-20444 UNITED STATES: +1-800-821-4643 VENEZUELA-8-623-90-00 SWITZERLAND: +41-1-825-7111 TAIWAN: +886-2-2514-0567 THAILAND: +662-636-1555 TURKEY: +90-212-236-3300 UNITED

MacAdam, Keith

210

An experimental investigation of the urea-water decomposition and selective catalytic reduction (SCR) of nitric oxides with urea using V2O5-WO3-TiO2 catalyst.  

E-Print Network [OSTI]

) stream. The decomposition experiments were conducted with a number of oxygen (O2) compositions (0, 1, 10, and 15%) over the temperature range of 227oC to 477oC. The study showed ammonia (NH3), carbon-dioxide (CO2) and nitric oxide (NO) as the major...

Johar, Jasmeet Singh

2005-11-01T23:59:59.000Z

211

www.dol.gov/wb whygreenisyourcolorA Wo m a n 's G u i d e t o a S u s t a i n a b l e C a r e e r  

E-Print Network [OSTI]

Energy 18 Environmental Protection 19 Green Building and Energy Efficiency 20 Doing Your Own Research 22 #12;TABLE OF CONTENTS HOW TO USE THIS GUIDE GLOSSARY Why Green Is Your Color: A Woman's Guide Why Is Green Good for Women? Green Occupations Educating Yourself For a Green Career Finding Your

Gelfond, Michael

212

C O N T A C T S F O R C U R R E N T & F O R M E R WO R K E R S  

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 Sites Proposed Route Segments (not drawn to scale) NewYacoltCAugO N T

213

Inventory List Item Number Brief Description Price Preferred Vendor  

E-Print Network [OSTI]

.36 FISHE C0020 Hanks' Balanced Salt Solution 10x w/ NaHCO3, w/o CaCl2,w/out MgS04$3.97 SIGMA C0018 HEPES C0008 PBS, Dulbecco's w/o CaCl2, w/o MgCl2 $4.60 LIFET C0023 Penicillin-Streptomycin 50x 100 mL $8

214

Electric Propulsion for Cars: New Directions for Energy Research  

E-Print Network [OSTI]

GDP kg of oil consumed per US$1000 of GDP, 2005 US OECD (w/o US) · petrochemicals 4 5 · freight;Oil Use vs GDP kg of oil consumed per US$1000 of GDP, 2005 US OECD (w/o US) · petrochemicals 4 5 consumption #12;Oil Use vs GDP kg of oil consumed per US$1000 of GDP, 2005 US OECD (w/o US) · petrochemicals 4

Firestone, Jeremy

215

Representing the Continuum between Arguments and Adjuncts within Predicate-Frames  

E-Print Network [OSTI]

-list of verbs 2,560 49 % 4,761 46 % de-list of verbs 4,954 95 % 9,416 91 % 5,190 100 % 10,364 100 % Table 1 with the particle wo is considered as an argument. In the de-list, every complement marked with the particle de is considered as an adjunct. Count Arguments / adjuncts wo-list of examples 1,041,818 504,391 (wo) de-list

Paris-Sud XI, Université de

216

Low Emissions Potential of EGR-SCR-DPF and Advanced Fuel Formulation...  

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

To Fuel Variables To Determine The Regulated And Unregulated Emissions W. &WO Emission Controls To Examine The Emission Control System Durability To Sample Toxic Emissions...

217

Physical properties of erbium implanted tungsten oxide films deposited by reactive dual magnetron sputtering  

E-Print Network [OSTI]

of erbium implanted tungsten oxide films deposited byDual magnetron sputtering; tungsten oxide films; Er ionoptical waveguides [3,5]. Tungsten oxide (WO 3 ) thin films

Mohamed, Sodky H.; Anders, Andre

2006-01-01T23:59:59.000Z

218

WPP, No. 49  

E-Print Network [OSTI]

Houde, R. A. sounds. ' Huizinga, E. Nerlandaise (1967) 'APhontique Experimentale. Huizinga, E. 'Uber die stello, woGebildet Wird. ' Archives Huizinga, E. and A. Moolenae-Bij1

1980-01-01T23:59:59.000Z

219

E-Print Network 3.0 - assisted hydrothermal synthesis Sample...  

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

Collection: Physics 53 Hydrothermally grown nanostructured WO films and their electrochromic characteristics Summary: -doped tin oxide glass substrates by a simple and...

220

E-Print Network 3.0 - ag triangular nanoplates Sample Search...  

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

; Materials Science 46 Hydrothermally grown nanostructured WO films and their electrochromic characteristics Summary: and AgAgCl as the reference electrode. The transmittance...

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


221

E-Print Network 3.0 - amine oxidase activity Sample Search Results  

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

performance for methanol... nanotube layers with WO"3 nanocrystals for high- electrochromic activity Short communication Source: Aksay, Ilhan A. - Department of Chemical...

222

microfabrication | EMSL  

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

microfabrication Leads No leads are available at this time. Reflection High-Energy Electron Diffraction Beam-Induced Structural and Property Changes on WO3 Thin Films....

223

Combining multiobjective optimization and Bayesian model averaging to calibrate forecast ensembles of  

E-Print Network [OSTI]

of soil hydraulic models Thomas Wo¨hling1 and Jasper A. Vrugt2 Received 12 May 2008; revised 8 September

Vrugt, Jasper A.

224

N T Ex s E L Rabih Talhouk Graduate Council Chairperson 4386 rtalhouk@aub.edu.lb College Hall Room 432  

E-Print Network [OSTI]

(2192/317) urex Hall (3244) Ne Wo en's Dor s (3362) Fire 5555 E er ency edical Assistance 7777 rotec

Shihadeh, Alan

225

Silicon nitride having a high tensile strength  

DOE Patents [OSTI]

A ceramic body comprising at least about 80 w/o silicon nitride and having a mean tensile strength of at least about 800 MPa.

Pujari, Vimal K. (Northboro, MA); Tracey, Dennis M. (Medfield, MA); Foley, Michael R. (Oxford, MA); Paille, Norman I. (Oxford, MA); Pelletier, Paul J. (Sutton, MA); Sales, Lenny C. (Grafton, MA); Willkens, Craig A. (Worcester, MA); Yeckley, Russell L. (Latrobe, PA)

1998-01-01T23:59:59.000Z

226

Microsoft Word - SNOPUD_Youngs_Cr_Hydro_CX_+_Checklist.doc  

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

Interconnection of Snohomish County Public Utility District No.1 (SNOPUD) Young's Creek Hydro Small Generation Budget Information: WO 00231295, Task 01 Categorical Exclusion...

227

Physical properties and surface/interface analysis of nanocrystalline...  

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

and surfaceinterface analysis of nanocrystalline WO3 films grown under variable oxygen gas flow rates. Physical properties and surfaceinterface analysis of nanocrystalline...

228

Solar | Department of Energy  

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

Soft costs now account for more than 60% of the total price of installing residential solar energy systems. wo...

229

Medieninformation Kommunikation und Medien  

E-Print Network [OSTI]

Epiphyten, Prof. Dr. Günter Gerlach (München) Unterwegs in den ?berschwemmungswäldern Süd-Venezuelas, wo man

Hoffmann, Rolf

230

Silicon nitride ceramic having high fatigue life and high toughness  

DOE Patents [OSTI]

A sintered silicon nitride ceramic comprising between about 0.6 mol % and about 3.2 mol % rare earth as rare earth oxide, and between about 85 w/o and about 95 w/o beta silicon nitride grains, wherein at least about 20% of the beta silicon nitride grains have a thickness of greater than about 1 micron.

Yeckley, Russell L. (Oakham, MA)

1996-01-01T23:59:59.000Z

231

Fabrication and characterization of nano-engineered membranes for oil-water separation  

E-Print Network [OSTI]

The focus of this thesis is the design and testing of membranes for separation of water-in- oil (w/o) emulsions. A polycarbonate membrane treated with octadecyltrichlorosilane (OTS) is used to filter a 3 wt% w/o emulsion. ...

Solomon, Brian R. (Brian Richmond)

2013-01-01T23:59:59.000Z

232

J. Electrochem. Soc., Vol. 140, No. 5, May 1993 9 The Electrochemical Society, Inc. 1471 assumed from the edge of the SiO2 conduction band corre-  

E-Print Network [OSTI]

centers excited by hot electrons accelerated by the high field of about 22 MV/cm in the SiQ layer of pure water, citric acid [1.5 weight percent (w/o)], and am- monium citrate (1.5 w/o). The spectrum, wafer temperature, and etc

Economou, Demetre J.

233

The genus Macroteleia Westwood in Middle Miocene amber from Peru (Hymenoptera, Platygastridae s.l., Scelioninae)  

E-Print Network [OSTI]

paleontology Genus Macroteleia Westwood, 1835 Macroteleia yaguarum Perrichot & Engel, sp. n. http://zoobank.org/8D3E135D-8273-4A15-A97D-BD4FDB0C76ED Figs 12 Type material. Holotype MUSM-A-2006-4a, female, in amber fragment from the Pebas Formation (Mollusc... | Received 29 May 2014 | Accepted 1 June 2014 | Published 17 Juny 2014 http://zoobank.org/6CD8F6A2-5D5E-4B25-AEB6-B0A4425EF2AB Citation: Perrichot V, Antoine P-O, Salas-Gismondi R, Flynn JJ, Engel MS (2014) The genus Macroteleia Westwood...

Perrichot, Vincent; Antoine, Pierre-Olivier; Salas-Gismondi, Rodolfo; Flynn, John J.; Engel, Michael S.

2014-06-17T23:59:59.000Z

234

Data:5919941b-ce47-4299-97c6-e73c36586887 | 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 Home Page on Office of48d9ff47edf3a87dcc95b3da-78f7ef0b79f6 No446b-9fca-d407954a4b84bf7e33133cb0 No revisionedc25fdb2 No586887 No

235

Simulation of turbulent lifted methane jet flames: effects of air-dilution and transient flame propagation  

E-Print Network [OSTI]

+ (ZO,2 ? ZO)/WO 2ZC,1/WC ? ZO,1/WO + ZH,1/2 WH + ZO,2/WO . (10) The mass fraction of an element i and its atomic mass are denoted as Zi and Wi re- spectively. Here, carbon, hydrogen and oxygen elements are used. The subscripts 1 and 2 denote the fuel... unstructured grid with fine mesh near the jet exit to resolve large spatial gradients in the near field of the fuel jet. A typical grid used for simula- tions is shown in Fig. 1b and it consists of 76,648 cells with the smallest size of 0.5 mm (0.1dj...

Chen, Z.; Ruan, S.; Swaminathan, N.

2014-10-03T23:59:59.000Z

236

Future Directions in Engines and Fuels  

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

Future Directions in Engines and Fuels 7 Specification HECS I (current) 1.6l 4-Cyl. Diesel Engine 60 kWl spec. Power (limited PFP) Euro 6 wo DeNOx (<1700 kg) ...

237

E-Print Network 3.0 - australian antarctic station Sample Search...  

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

EF... Monographs 32:197 Ainley DG, Fraser WR, Sullivan CW, Torres JJ, Hopkins TL, Smith WO (1986) Antarctic... , Smith WOJ, Hopkins TL, Torres JJ (1991) The structure of...

238

Structure-property Relationships in Pure and Doped Epitaxial Tungsten Trioxide Thin Films  

E-Print Network [OSTI]

Structure-property Relationships in Pure and Doped Epitaxial Tungsten Trioxide Thin Films Principal-property relationships of well- defined epitaxial tungsten trioxide (WO3) films with and without dopants, and thereby

239

E-Print Network 3.0 - agrobiont linyphiid spiders Sample Search...  

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

Universitt Bern Collection: Environmental Sciences and Ecology 3 Spiders in wheat fields and semi-desert in the Negev (Israel) Therese Pluess1,3 Summary: .D. Sunderland & W.O....

240

Grazing value and management of tobosa grass (Hilaria mutica (Buckl.) Benth.) on the Texas Range Station near Barnhart  

E-Print Network [OSTI]

the swot' af 1556s ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ A) Suaaary of plot data fran tbe 1956 belt treaseot survey showing anount of toboea by pastures. Oats represeat ?vorages of five plots on each of the wo no)or soil types . . . AP Analysis...

Gonza?lez, Marti?n H

1957-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fdb fcns wo" 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

WPP, No. 66  

E-Print Network [OSTI]

a tracing of the same. 1 00 Huizinga, E. Recherches sur unthe mouth nearly shut). Huizinga, E. Uber die stello, wo derbite block inserted. 1 02 Huizinga, E. and A. Moolenaar-Bijl

1987-01-01T23:59:59.000Z

242

Electropolymerized Polyaniline Stabilized Tungsten Oxide Nanocomposite Films: Electrochromic Behavior and Electrochemical  

E-Print Network [OSTI]

Electropolymerized Polyaniline Stabilized Tungsten Oxide Nanocomposite Films: Electrochromic. The optical properties and electrochemical capacitive behaviors of the composite films for electrochromic (EC electrochromism at both positive and negative potentials arising from PANI and WO3, respectively. A coloration

Guo, John Zhanhu

243

Available at: http://publications.ictp.it IC/2010/045 United Nations Educational, Scientific and Cultural Organization  

E-Print Network [OSTI]

. Transition metal oxides make up a technologically important class of compound because of their electrochromic (Hydrogen) evolution kinetics has been studied. It is well known that WO3 films show better electrochromic

244

Identifying Options for Deep Reductions in Greenhouse Gas Emissions from California Transportation: Meeting an 80% Reduction Goal in 2050  

E-Print Network [OSTI]

IGCC, w/o or w/ CCS) Carbon Intensity of Electricity (gCO2-reductions to fuel carbon intensity in Efficient Biofuelsreductions to fuel carbon intensity in Electric- drive

Yang, Christopher; McCollum, David L; McCarthy, Ryan; Leighty, Wayne

2008-01-01T23:59:59.000Z

245

u.s. DEPARTMENT OF ENERGY EERE PROJECT MANAGEMENT CENTER NEPA...  

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

85.1 A ctions to conserve energy or WoOte, 85.16 Solar photovoltaic systems 85.23 Electric vehicle charging stations (a) Actions to conserve energy or water, demonstrate...

246

Pipeline Flow Behavior of Water-In-Oil Emulsions.  

E-Print Network [OSTI]

??Water-in-oil (W/O) emulsions consist of water droplets dispersed in continuous oil phase. They are encountered at various stages of oil production. The oil produced from (more)

Omer, Ali

2009-01-01T23:59:59.000Z

247

Advancement of Electrochromic Windows  

E-Print Network [OSTI]

of a thin-film ceramic electrochromic window: Field studyof a Thin-Film Ceramic Electrochromic Window: Field StudyEC window product characteristics The EC is a thin-film WO3-

2006-01-01T23:59:59.000Z

248

airway diameter behavior: Topics by E-print Network  

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

of the interionic Boyer, Edmond 149 Affect of Viscosity and Droplet Diameter on water-in-oil (wo) Emulsions: An Experimental Study CiteSeer Summary: AbstractThe influence of...

249

communication.uts.edu.au think.change.do  

E-Print Network [OSTI]

accessible by bus and train. Close to cosmopolitan inner-city suburbs such as Glebe, Surry Hills and Darling Harbour, the City campus is surrounded by places to shop, eat and just hang out. Wo

University of Technology, Sydney

250

U.S. Department of Energy Categorical Exclusion ...  

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

Carolina Work Order (WO) 1166260, Replace 773-A D-Wing Roof Air Handling Unit A-773000-HVAC-AHU-819-512, Condenser A-773000-HVAC- CDU-819-515. The system return ducting has an...

251

Climate regulation of fire emissions and deforestation in equatorial Asia  

E-Print Network [OSTI]

different types of fire, with peat fires emitting up to fourof carbon released from peat and forest fires in IndonesiaM, Wosten H, Page S (2006) PEAT-CO2: assessment of CO2

2008-01-01T23:59:59.000Z

252

Meteorological Tables for Determination of Precipitable Water, Temperatures and Pressures Aloft for a Saturated Pseudoadiabatic Atmosphere -- in the Metric System  

E-Print Network [OSTI]

TR-16 1968 Meteorological Tables for Determination of Precipitable Water, Temperatures and Pressures Aloft for a Saturated Pseudoadiabatic Atmosphere?in the Metric System W.O. Eihle R.J. Powers R.A. Clark...

Eihle, W. O.; Powers, R. J.; Clark, R.A.

253

EERE PROJECT MANAGEMENT CENTER NEPA DI!Tl!RlInNATION RECIPIENT...  

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

and stores biosolids onsite seasonally. Filtrate from dewatering goes back to WoNTP head works. Siogas stays on property to run the 710 kW generator to make renewable green...

254

E-Print Network 3.0 - andmed aastatest 1999-2007 Sample Search...  

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

l l WO V i U a& W a. 2 (1783). . A&&o - 3 d i e p - hdm%e - Andm%e Source: Saunders, Mark - Benfield Hazard Research Centre, Department of Space and Climate Physics,...

255

Vector Quantization Codebook Generation Method  

E-Print Network [OSTI]

Cockshott,P. Lambert,R.B. US patent 6438268 International Patent Application publication no wo 98/18262 Publication date 30 april 1998; Application no pct/gb97/02841

Cockshott, P.; Lambert, R.B.; US patent 6438268 International Patent Application publication no wo 98/18262 Publication date 30 april 1998; Application no pct/gb97/02841 [More Details

256

arbor project: Topics by E-print Network  

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

T P "'" 51166 2" "wo PAGE OF Because Rathbun, Julie A. 60 Proceedings of the 9th Conference on Computational Natural Language Learning (CoNLL), pages 165168, Ann Arbor, June...

257

MIN ET AL. VOL. 6 ' NO. 4 ' 35973603 ' 2012 www.acsnano.org  

E-Print Network [OSTI]

to undesired termina- tion and poor biosensitivity. Hence, to achieve the precise production of biosensors location. In addition, via the use of a tungsten STM tip coated with a tungsten oxide (WO3) layer, we

Kim, Sehun

258

Building America Whole-House Solutions for New Homes: Rural Developmen...  

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

wo PV), with double-stud walls heavy insulation, low-load sealed-combustion gas space heaters, triple-pane windows, solar water heating, and PV. Rural Development Inc.: Wisdom...

259

EndNote Online for Health: guide 1. Registering with EndNote Online p.1  

E-Print Network [OSTI]

of the WoS screen. Finally, enter the email and password details that you have set up. Agree to terms of use to proceed. ii. Search for articles in WoS e.g. either on a topic of your choice or enter biomechanic experience on the right-hand side of the screen. Then enter your email address twice as directed and click

Rzepa, Henry S.

260

Photo-controllable thermoelectric properties with reversibility and photo-thermoelectric effects of tungsten trioxide accompanied by its photochromic phenomenon  

SciTech Connect (OSTI)

The addition of photo-controllable properties to tungsten trioxide (WO{sub 3}) is of interest for developing practical applications of WO{sub 3} as well as for interpreting such phenomena from scientific viewpoints. Here, a sputtered crystalline WO{sub 3} thin film generated thermoelectric power due to ultraviolet (UV) light-induced band-gap excitation and was accompanied by a photochromic reaction resulting from generating W{sup 5+} ions. The thermoelectric properties (electrical conductivity (?) and Seebeck coefficient (S)) and coloration of WO{sub 3} could be reversibly switched by alternating the external stimulus between UV light irradiation and dark storage. After irradiating the film with UV light, ? increased, whereas the absolute value of S decreased, and the photochromic (coloration) reaction was detected. Notably, the opposite behavior was exhibited by WO{sub 3} after dark storage, and this reversible cycle could be repeated at least three times. Moreover, photo-thermoelectric effects (photo-conductive effect (photo-conductivity, ?{sub photo}) and photo-Seebeck effect (photo-Seebeck coefficient, S{sub photo})) were also detected in response to visible-light irradiation of the colored WO{sub 3} thin films. Under visible-light irradiation, ?{sub photo} and the absolute value of S{sub photo} increased and decreased, respectively. These effects are likely attributable to the excitation of electrons from the mid-gap visible light absorption band (W{sup 5+} state) to the conduction band of WO{sub 3}. Our findings demonstrate that the simultaneous, reversible switching of multiple properties of WO{sub 3} thin film is achieved by the application of an external stimulus and that this material exhibits photo-thermoelectric effects when irradiated with visible-light.

Azuma, Chiori [Faculty of Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511 (Japan); Kawano, Takuto [Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511 (Japan); Kakemoto, Hirofumi; Irie, Hiroshi, E-mail: hirie@yamanashi.ac.jp [Clean Energy Research Center, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi 400-8511 (Japan)

2014-11-07T23:59:59.000Z

Note: This page contains sample records for the topic "fdb fcns wo" 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

New scheelite-type oxynitrides in systems RWO{sub 3}N-AWO{sub 4} (R = rare-earth element; A = Ca, Sr) from precursors obtained by the citrate route  

SciTech Connect (OSTI)

RWO{sub 3}N oxynitrides were isolated as single phases for R=Nd and Pr, after thermal ammonolysis of reactive precursors prepared using the citrate complexation/calcination route. Both stoichiometric compounds crystallize with a scheelite-type tetragonal unit cell, with a=5.2821(3) A, c=11.5893(8) A (NdWO{sub 3}N) and a=5.299(3) A, c=11.631(9) A (PrWO{sub 3}N). Neutron diffraction experiments performed on the Nd-phase did not evidence any oxygen/nitrogen order within the scheelite anionic subnetwork (space group: I4{sub 1}/a). (Nd,A)W(O,N){sub 4} (A=Ca, Sr) solid solution domains were identified between NdWO{sub 3}N and the AWO{sub 4} oxide composition.

Chevire, Francois; Tessier, Franck; Marchand, Roger

2004-06-08T23:59:59.000Z

262

Besedje stare kme?ke delovne ege na Korokem steljeraje  

E-Print Network [OSTI]

dolo?enem podro?ju s pomo?jo rok U? s?ta:rix ?ca:jtix, ?k? ?e ni b?w? ?n? ?c?:st pa ne e?l?:ktrike pa ?tuj k?m?:?ke mexani?za:cije ?ni:so poz?na:li, se je na ?pa:u?rex de?wa:wo u??s? na ?ro:ke. SSKJ + Plet. + delo || ?d?:wo -a s delanje, vezano na... ?lu:ksus. SSKJ Plet. paver || ?pa:w?r -ra m kmet U? s?ta:rix ?ca:jtix, ?k? ?e ni b?w? ?n? ?c?:st pa ne e?l?:ktrike pa ?tuj k?m?:?ke mexani?za:cije ?ni:so poz?na:li, se je na ?pa:u?rex de?wa:wo u??s? na ?ro:ke. [nem. der Bauer kmet] SSKJ + (nije...

Benko, Anja

2010-01-01T23:59:59.000Z

263

Role of word-of-mouth for programs of voluntary vaccination: A game-theoretic approach  

E-Print Network [OSTI]

We propose a model describing the synergetic feedback between word-of-mouth (WoM) and epidemic dynamics controlled by voluntary vaccination. We combine a game-theoretic model for the spread of WoM and a compartmental model describing $SIR$ disease dynamics in the presence of a program of voluntary vaccination. We evaluate and compare two scenarios, depending on what WoM disseminates: (1) vaccine advertising, which may occur whether or not an epidemic is ongoing and (2) epidemic status, notably disease prevalence. Understanding the synergy between the two strategies could be particularly important for organizing voluntary vaccination campaigns. We find that, in the initial phase of an epidemic, vaccination uptake is determined more by vaccine advertising than the epidemic status. As the epidemic progresses, epidemic status become increasingly important for vaccination uptake, considerably accelerating vaccination uptake toward a stable vaccination coverage.

Bhattacharyya, Samit; Breban, Romulus

2015-01-01T23:59:59.000Z

264

The self-propagation high-temperature synthesis (SHS) of ultrafine high purity tungsten powder from scheelite  

SciTech Connect (OSTI)

High-purity tungsten was prepared by self-propagating high-temperature synthesis (SHS) process from a mixture of CaO{center_dot}WO{sub 3} and Mg. The complete reduction of CaO{center_dot}WO{sub 3} required a 33{percent} excess of magnesium over the stoichiometric molar ratio Mg/CaO{center_dot}WO{sub 3} of 3:1. The MgO and CaO in the product was leached with an HCl solution. The product tungsten had a purity of 99.980{percent} which was higher than that of the reactants. The high purity results because the non tungsten reactants and products are volatilized by the high temperatures generated during the rapid exothermic SHS reaction and are dissolved during HCl leaching of the product. {copyright} {ital 1996 Materials Research Society.}

Jung, J.C.; Ko, S.G.; Won, C.W.; Cho, S.S.; Chun, B.S. [Engineering Research Center for Rapidly Solidified Materials, Chungnam National University, Daejeon 305-764 (Korea)

1996-07-01T23:59:59.000Z

265

Scandium separation from tungsten crucibles : preliminary investigation into the separation of scandium metal from tungsten metal crucibles using an acid soak process.  

SciTech Connect (OSTI)

The first step in an attempt to isolate Sco from a Wo crucible was explored by soaking the samples in a series of organic (HOAc) and inorganic (HCl, H2SO4, H3PO4, HNO3) acids. All samples, except the HOAc, yielded a powder. The weight loss suggests that HNO3 is the most efficient solvent; however, the powders were tentatively identified by PXRD and found to contain both W and Sc by-products. The higher weight loss may also indicate dissolution of the Wo crucible, which was further evidenced upon visual inspection of the crucible. The H3PO4 acid soak yielded the cleanest removal of Sc from the crucible. More work to understand the separation of the Sco from the Wo crucible is necessary but the acid routes appear to hold promise under not as of yet established criteria.

Boyle, Timothy J.; Hess, Ryan Falcone; Neville, Michael Luke; Howard, Panit Clifton

2013-02-01T23:59:59.000Z

266

Experimental research of double beta decay of atomic nuclei  

E-Print Network [OSTI]

Results of several double beta decay experiments, performed with the help of low background crystal scintillators, are presented. In particular, the half-life value of the two-neutrino double beta decay of 116-Cd has been measured as 2.9 10^{19} yr, and the new half-life limit on the neutrinoless double beta decay of 116-Cd has been established as >1.7 10^{23} yr at 90%, which corresponds to a restriction on the neutrino mass <1.7 eV. New half-life bounds on the level of 10^{17}-10^{21} yr were set for double beta processes in 64-Zn, 70-Zn, 106-Cd, 108-Cd, 114-Cd, 136-Ce, 138-Ce, 142-Ce, 160-Gd, 180-W, and 186-W by using low-background CdWO4, GSO, and ZnWO4 crystal scintillators. The claim of discovery of the neutrinoless double beta decay of 76-Ge [Mod. Phys. Lett. A 16 (2001) 2409] was analyzed. The demands of the future high sensitivity double beta decay experiments, aiming to observe the neutrinoless double beta decay or to advance restrictions on the neutrino mass to < 0.01 eV, were considered. Requirements for their sensitivity and discovery potential were formulated. Two projects of double beta experiments with a sensitivity on the level of 10^{26}-10^{27} yr (CAMEO and CARVEL projects) were discussed. Scintillation properties and radioactive contamination of CaWO4, ZnWO4, CdWO4, PbWO4, GSO(Ce), CeF3, yttrium-aluminum garnet doped with neodymium (YAG:Nd) crystal scintillators were studied. Applicability of these scintillators to search for double beta decay was discussed.

F. A. Danevich

2011-12-26T23:59:59.000Z

267

Phase matching of four-wave interactions of SRS components in birefringent SRS-active crystals  

SciTech Connect (OSTI)

A new method has been proposed for achieving wave vector matching in four-wave interactions of frequency components upon SRS in birefringent SRS-active crystals. The method ensures anti-Stokes wave generation and enables a substantial reduction in higher order Stokes SRS generation thresholds. Phase matching directions in BaWO{sub 4} SRS-active negative uniaxial crystals and SrWO{sub 4} SRS-active positive uniaxial crystals have been found in the wavelength range 0.4 - 0.7 {mu}m.

Smetanin, Sergei N; Basiev, Tasoltan T [A M Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2012-03-31T23:59:59.000Z

268

SLUITINGSDAGEN TU/e Kenmerk: CvB 2009/481  

E-Print Network [OSTI]

: Sluiting rond kerstmis/Nieuwjaar Jaar weekdagen Data aantal dagen 2010/2011 ma t/m vr 27 t/m 31 dec 5 2011/2012 di t/m vr27 t/m 30 dec 4 2012/2013 ma-do-vr-ma 24-26-27-31 dec 4 2013/2014 vr-ma-di 27-30-31 dec 3 2014/2015 ma-di-wo-vr 29-30-31 dec + 2 jan 4 2015/2016 ma-di-wo-do 28-29-30-31 dec 4 2016/2017 di

Franssen, Michael

269

A new three-control-volume theory for circumferentially-grooved liquid seals  

E-Print Network [OSTI]

? C, ci, ci, c4 D, Fo ? 2RLAP f?f, H L m, n p p?p, p = P/pWo Re, = 2pC, WO/ft Area, (L') Groove depth, (L) Nondimensional parameter, defined in Eq. (28), (-) Direct, cross-coupled damping coefficient, (FT/L) Seal discharge coefficient..., defined in Eq. (53) Seal clearance, (L) Nondimensional parameters, defined in Eq. (28), (-) Hydrauhc diameter, (L) Force, (F) Nondimenstonalizing force, defined in Eq. (73), (F) Radial, tangential nondimensional force, defined in Eq. (74), (-'l...

Marquette, Olivier Robert

2012-06-07T23:59:59.000Z

270

Search forSearch for SupersymmetrySupersymmetry in Multiin Multi--tau Final Statestau Final States  

E-Print Network [OSTI]

V/c +jets+jets & QCD& QCD 2.2(syst)%1.6(stat)55.6ID)( h ±±= Events passing e ID and (w/o 0 isolation) ID Events passing e ID and (w/o 0 isolation) ID 3.1(syst)%1.0(stat)72.1)ID( * ±±=e *) Including tight trigger&ID, No discovery" #12;June 21, 2004 Search for SUSY in Multi-tau Final States Lepton+Track Trigger

Fermilab

271

A visible light-sensitive tungsten carbide/tungsten trioxde composite photocatalyst  

SciTech Connect (OSTI)

A photocatalyst composed of tungsten carbide (WC) and tungsten oxide (WO{sub 3}) has been prepared by the mechanical mixing of each powder. Its photocatalytic activity was evaluated by the gaseous isopropyl alcohol decomposition process. The photocatalyst showed high visible light photocatalytic activity with a quantum efficiency of 3.2% for 400-530 nm light. The photocatalytic mechanism was explained by means of enhanced oxygen reduction reaction due to WC, which may serve as a multielectron reduction catalyst, as well as the photogeneration of holes in the valence band of WO{sub 3}.

Kim, Young-ho [Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904 (Japan); Irie, Hiroshi [Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan); Hashimoto, Kazuhito [Research Center for Advanced Science and Technology, The University of Tokyo, 4-6-1 Komaba, Meguro-ku, Tokyo 153-8904 (Japan); Department of Applied Chemistry, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan)

2008-05-05T23:59:59.000Z

272

Ionizing Radiation Detector  

DOE Patents [OSTI]

A CdZnTe (CZT) crystal provided with a native CdO dielectric coating to reduce surface leakage currents and thereby, improve the resolution of instruments incorporating detectors using CZT crystals is disclosed. A two step process is provided for forming the dielectric coating which includes etching the surface of a CZT crystal with a solution of the conventional bromine/methanol etch treatment, and passivating the CZT crystal surface with a solution of 10 w/o NH.sub.4 F and 10 w/o H.sub.2 O.sub.2 in water after attaching electrical contacts to the crystal surface.

Wright, Gomez W. (Nashville, TN); James, Ralph B. (Livermore, CA); Burger, Arnold (Nashville, TN); Chinn, Douglas A. (Livermore, CA)

2003-11-18T23:59:59.000Z

273

Surface Treatment And Protection Method For Cadium Zinc Telluride Crystals  

DOE Patents [OSTI]

A method for treatment of the surface of a CdZnTe (CZT) crystal that provides a native dielectric coating to reduce surface leakage currents and thereby, improve the resolution of instruments incorporating detectors using CZT crystals. A two step process is disclosed, etching the surface of a CZT crystal with a solution of the conventional bromine/methanol etch treatment, and after attachment of electrical contacts, passivating the CZT crystal surface with a solution of 10 w/o NH4F and 10 w/o H2O2 in water.

Wright, Gomez W. (Nashville, TN); James, Ralph B. (Livermore, CA); Burger, Arnold (Nashville, TN); Chinn, Douglas A. (Livermore, CA)

2006-02-21T23:59:59.000Z

274

Surface treatment and protection method for cadmium zinc telluride crystals  

DOE Patents [OSTI]

A method for treatment of the surface of a CdZnTe (CZT) crystal that provides a native dielectric coating to reduce surface leakage currents and thereby, improve the resolution of instruments incorporating detectors using CZT crystals. A two step process is disclosed, etching the surface of a CZT crystal with a solution of the conventional bromine/methanol etch treatment, and after attachment of electrical contacts, passivating the CZT crystal surface with a solution of 10 w/o NH.sub.4 F and 10 w/o H.sub.2 O.sub.2 in water.

Wright, Gomez W. (Nashville, TN); James, Ralph B. (Livermore, CA); Burger, Arnold (Nashville, TN); Chinn, Douglas A. (Livermore, CA)

2003-01-01T23:59:59.000Z

275

Fission Product Impact Reduction via Protracted In-core Retention in Very High Temperature Reactor (VHTR) Transmutation Scenarios  

E-Print Network [OSTI]

is performed, the spent fuel can be partitioned and separated into 3 streams: depleted uranium (to be recycled with plutonium in reactors), TRU and FP. The TRU content of spent fuel is potentially a useable material. TRU can be recycled in advanced reactors... percent depleted uranium and 1.1 percent higher actinides [25]. Based on the 4.6w/o fission product content, it can be estimated that 10GWd/MTU burnup corresponds to about 1.0w/o of fission products in the spent fuel. Given the burnup of U.S. legacy...

Alajo, Ayodeji Babatunde

2011-08-08T23:59:59.000Z

276

Pastaklan Vesla Issue 5  

E-Print Network [OSTI]

Bo KclCendrick- .6, 1-0, 19 Allan Andress- 25t^L Ginnio Reynolds- 3^i 36, 4-3 No trades for other fanzines Kathy. Bushman.* 29 Peggy Barilla- 55, 56 Steve Barnes- 73, 84, 93 CAB - Bacovcr Horta Press Issue ;"*5 Rhubarb Publication.../\\ M A?TD TH5?T THERE'S. ? . 1 - ' > ?-^WW I II i,ijw" I Friends t We cano^up with this idea and we organized it and we bought the supplies and wo typed it and we glued it together and wo printed it and we collated7 w&at we printed and...

Multiple Contributors

1978-01-01T23:59:59.000Z

277

1 / 2 0 0 7 M A X P L A N C K F O R S C H U N G 81 MEHR RECHENPOWER BEI DER GWDG UND IM RECHENZENTRUM GARCHING  

E-Print Network [OSTI]

RECHENZENTRUM GARCHING Computer für komplexe Simulationen Sowohl das Rechenzentrum Garching als auch die Rechenzentrum Garching installiert die Max-Planck-Gesellschaft einen IBM-Supercomputer, der die Leistung des Garching, wo sich die neue Anlage befinden wird. Das Rechenzentrum Gar- ching ist das gemeinsame

278

Neutron Scattering Facility for Characterization of CRESST and EURECA Detectors at mK Temperatures  

E-Print Network [OSTI]

CRESST (Cryogenic Rare Event Search with Superconducting Thermometers) is an experiment located at the Gran Sasso underground laboratory and aimed at the direct detection of dark matter in the form of WIMPs. The setup has just completed a one year commissioning run in 2007 and is presently starting a physics run with an increased target mass. Scintillating $\\mathrm{CaWO_4}$ single crystals, operated at temperatures of a few millikelvin, are used as target to detect the tiny nuclear recoil induced by a WIMP. The powerful background identification and rejection of $\\alpha$, e$^{-}$ and $\\gamma$ events is realized via the simultaneous measurement of a phonon and a scintillation signal generated in the $\\mathrm{CaWO_4}$ crystal. However, neutrons could still be misidentified as a WIMP signature. Therefore, a detailed understanding of the individual recoil behaviour in terms of phonon generation and scintillation light emission due to scattering on Ca, O or W nuclei, respectively, is mandatory. The only setup which allows to perform such measurements at the operating temperature of the CRESST detectors has been installed at the Maier-Leibnitz-Accelerator Laboratory in Garching and is presently being commissioned. The design of this neutron scattering facility is such that it can also be used for other target materials, e.g. $\\mathrm{ZnWO_4}$, $\\mathrm{PbWO_4}$ and others as foreseen in the framework of the future multitarget tonne-scale experiment EURECA (European Underground Rare Event Calorimeter Array).

J. -C. Lanfranchi; C. Ciemniak; C. Coppi; F. von Feilitzsch; A. Gtlein; H. Hagn; C. Isaila; J. Jochum; M. Kimmerle; S. Pfister; W. Potzel; W. Rau; S. Roth; K. Rottler; C. Sailer; S. Scholl; I. Usherov; W. Westphal

2008-10-01T23:59:59.000Z

279

Single-Crystal Tungsten Oxide Nanosheets: Photochemical Water Oxidation in the Quantum Confinement Regime  

E-Print Network [OSTI]

Single-Crystal Tungsten Oxide Nanosheets: Photochemical Water Oxidation in the Quantum Confinement, catalysis, WO3, tungsten oxide, nanosheet, nanocrystal, quantum confinement, solar energy conversion INTRODUCTION Tungsten trioxide crystallizes in the ReO3 structure type and is an n-type semiconductor with a 2

Osterloh, Frank

280

Study on the oxidation and reduction of tungsten surface for sub-50 nm patterning process  

SciTech Connect (OSTI)

The oxidation characteristics of tungsten line pattern during the carbon-based mask-layer removal process using oxygen plasmas have been investigated for sub-50 nm patterning processes, in addition to the reduction characteristics of the WO{sub x} layer formed on the tungsten line surface using hydrogen plasmas. The surface oxidation of tungsten lines during the mask layer removal process could be minimized by using low-temperature (300 K) plasma processing for the removal of the carbon-based material. Using this technique, the thickness of WO{sub x} on the tungsten line could be decreased to 25% compared to results from high-temperature processing. The WO{sub x} layer could also be completely removed at a low temperature of 300 K using a hydrogen plasma by supplying bias power to the tungsten substrate to provide a activation energy for the reduction. When this oxidation and reduction technique was applied to actual 40-nm-CD device processing, the complete removal of WO{sub x} formed on the sidewall of tungsten line could be observed.

Kim, Jong Kyu; Nam, Seok Woo; Cho, Sung Il; Jhon, Myung S.; Min, Kyung Suk; Kim, Chan Kyu; Jung, Ho Bum; Yeom, Geun Young [Memory Division Semiconductor Business, Samsung Electronics, San No. 16 Banwol-Ri, Taean-Eup, Hwasung-City, Gyeonggi-Do 449-711, South Korea and Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 440-746 (Korea, Republic of); Memory Division Semiconductor Business, Samsung Electronics, San No. 16 Banwol-Ri, Taean-Eup, Hwasung-City, Gyeonggi-Do 449-711 (Korea, Republic of); Department of Chemical Engineering and Data Storage Systems Center, Carnegie Mellon University, Pittsburgh, Pennsylvania 15213 (United States); Department of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do 440-746 (Korea, Republic of)

2012-11-15T23:59:59.000Z

Note: This page contains sample records for the topic "fdb fcns wo" 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

Fabrication of functional nanomaterials using flame assisted spray pyrolysis  

SciTech Connect (OSTI)

Flame assisted spray pyrolysis (FASP) is a class of synthesis method for nanomaterials fabrication. The ability to control nanomaterials characteristics and easy to be-scaled up are the main features of FASP. The crystallinity and particles size of the prepared nanomaterials can be easily controlled by variation of fuel flow rate. The precursor concentration, carrier gas flow rate, and carrier gas can be also used to control the prepared nanomaterials. Energy related nanomaterials preparation uses as the example case in FASP application. These material are yttrium aluminum garnet (YAG:Ce) and tungsten oxide (WO{sub 3}). It needs strategies to produce these materials into nano-sized order. YAG:Ce nanoparticles only can be synthesized by FASP using the urea addition. The decomposition of urea under high temperature of flame promotes the breakage of YAG:Ce particles into nanoparticles. In the preparation of WO{sub 3}, the high temperature flame can be used to gasify WO{sub 3} solid material. As a result, WO{sub 3} nanoparticles can be prepared easily. Generally, to produce nanoparticles via FASP method, the boiling point of the material is important to determine the strategy which will be used.

Purwanto, Agus, E-mail: aguspur@uns.ac.id [Chemical Engineering Department, Faculty of Engineering, Sebelas Maret University, Surakarta 632112 (Indonesia)

2014-02-24T23:59:59.000Z

282

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]

synthesis is analyzed. ? 2009 Elsevier B.V. All rights reserved. 1. Introduction Tungsten oxide (WO3?x's personal copy One-dimensional tungsten oxide growth through a grain-by-grain buildup process S.M. Cui, G t One-dimensional (1D) tungsten oxide crystals (wires, wire bundles, and tubes) were synthesized

Chen, Junhong

283

Growth of epitaxial tungsten oxide nanorods M.Gillet*, R. Delamare, E. Gillet  

E-Print Network [OSTI]

the grain boundaries. So the synthesis of monocristalline tungsten oxide as nanowires or nanorods amorphous tungsten oxide nanoparticles. Y.B. Li et al [18] have synthesized WO3 nanobelts and nanorods via1 Growth of epitaxial tungsten oxide nanorods M.Gillet*, R. Delamare, E. Gillet UNIVERSITE D

Paris-Sud XI, Université de

284

Conductive Polypyrrole/Tungsten Oxide Metacomposites with Negative Permittivity Jiahua Zhu,  

E-Print Network [OSTI]

) nanocomposites reinforced with tungsten oxide (WO3) nanoparticles (NPs) and nanorods (NRs) are fabricatedConductive Polypyrrole/Tungsten Oxide Metacomposites with Negative Permittivity Jiahua Zhu, Suying techniques to form PNCs. Therefore, synthesis techniques have been developed and optimized to incorporate

Guo, John Zhanhu

285

SHORT REVIEW Butterfly genomics eclosing  

E-Print Network [OSTI]

SHORT REVIEW Butterfly genomics eclosing P Beldade1 , WO McMillan2 and A Papanicolaou3 1 Section to an explosion of genomic data and the emergence of new research avenues. Evolutionary and ecological functional genomics, with its focus on the genes that affect ecological success and adaptation in natural populations

Beldade, Patrícia

286

p o s t m a r k s For parents and Friends oF the University oF illinois at Urbana-Champaign  

E-Print Network [OSTI]

in the junior-level "Food Production and Service" course run Bevier Café, open weekdays for breakfast, lunch 2006 By Alexis Terrell T wo students in the Quantity Foods Laboratory, wearing white chef coats ­ this summer, contingent See Safety, page 9 Bevier Café and Spice Box provide lessons in healthy food

Lewis, Jennifer

287

Z .Thin Solid Films 392 2001 231 235 Atmospheric pressure chemical vapor deposition of  

E-Print Network [OSTI]

of electrochromic tungsten oxide films Roy G. Gordona,U , Sean Barryb , Jeffrey T. Bartona , Randy N.R. Broomhall oxide, WO , is a coloring layer commonly used in electrochromic windows and displays. Successful: Chemical vapor deposition; Tungsten; Oxides; Electrochromism 1. Introduction Tungsten oxide is a key

288

Electrochimica Acta 46 (2001) 20772084 Fe-containing CeVO4 films as Li intercalation transparent  

E-Print Network [OSTI]

are good candidates for optically passive counter-electrodes in electrochromic (EC) devices. © 2001 Elsevier Science Ltd. All rights reserved. Keywords: Fe-contaning orthovanadates; Electrochromic film in the development of materials for electrochromic (EC) variable transmission glass devices. WO3 is one of the most

Artuso, Florinda

289

Electrochimica Acta 136 (2014) 435441 Contents lists available at ScienceDirect  

E-Print Network [OSTI]

Acta journal homepage: www.elsevier.com/locate/electacta Efficient Solar Energy Storage Using A TiO2/WO solar energy storage for the first time. The results showed sig- nificant improvement in photocurrent a photoelectrochemical (PEC) cell to convert solar energy to either electricity or chemical fuels has attracted much

Liu, Fuqiang

290

Service Interruption Notices Between 06/06/14 and 07/05/14  

E-Print Network [OSTI]

replacement Start: 5/12/2014 @ 7:30:00 AM End: 8/1/2014 @ 7:00:00 AM AC Asbestos Electric Gas HVACAlarm Steam - High Steam - Low Water ProjEngineer: Bill Lizotte Proj Phone: 7-4768 WO#: 14-013785-000 Shop/Crew: Air Conditioning Autoclaves Cold Water Cold Storage Compressed Air Computers Condenser Pumps Distilled Water

Massachusetts at Amherst, University of

291

Controlled Vapor Phase Growth of Single Crystalline, Two-Dimensional GaSe  

E-Print Network [OSTI]

, and have the potential to enable next-generation electronic and optoelectronic devices. However, controlled-generation electronic and optoelectronic devices such as photodetectors and field-effect transistors. T wo-generation electronic and optoelectronic devices. Although most research has focused on 2D transition metal

Geohegan, David B.

292

E-Print Network 3.0 - agentes da cadeia Sample Search Results  

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

em gua (ow) ou gua em leo (wo) Fase contnua fase dispersa. Summary: -1) NaCl 1 1.18 CaCl2 2 0.018 AlCl3 3 0.0016 12;Estabilizao estrica Extenso da cadeia...

293

Understanding mechanisms of flow instability leads to improved control of  

E-Print Network [OSTI]

stability · Turbulence conditioning and boundary layer trimming in nozzle dramatically improves jet quality UC Berkeley data Re = 100,000 L/D = 44 Re = 75,000 L/D = 44 w/ conditioning w/o conditioning #12 Preserving Heat in the Air Temperature Rise in the Air Earth I.R.:Infra Red I.R. Absorption Sun Air I

Abdou, Mohamed

294

The importance of phase in speech enhancement Kuldip Paliwal, Kamil Wojcicki  

E-Print Network [OSTI]

The importance of phase in speech enhancement Kuldip Paliwal, Kamil Wo´jcicki , Benjamin Shannon 1 Available online 24 December 2010 Abstract Typical speech enhancement methods, based on the short in the enhancement process the quality of the resulting speech can be improved. For this we use analysis windows

295

20120328 WEST Comments on RRTT RFI Response Request  

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

eneration r esource c an o ften b e s ited, permitted a nd b uilt i n t wo y ears o r l ess, a nd d istribution p lant g enerally takes l ess t han a y ear t o p lace i nto s...

296

Molecular Thermodynamic Modeling of Droplet-Type Microemulsions  

E-Print Network [OSTI]

a molecular thermodynamic theory for droplet-type microemulsions, both water-in-oil and oil/W) or spherical water droplets dispersed in a continuous medium of oil (water-in-oil microemulsions, W/O). The OMolecular Thermodynamic Modeling of Droplet-Type Microemulsions Livia A. Moreira and Abbas

Firoozabadi, Abbas

297

Squeezing particle-stabilized emulsions into biliquid foams equation of state  

E-Print Network [OSTI]

porous materials,14 and for shelf life.20 Here, we measure the equation of state of water-in-oil (w/o) PR emulsions via centrifugal compression and we interpret our results using a quantitative model adapted fromSqueezing particle-stabilized emulsions into biliquid foams ­ equation of state Louison Maurice

Schofield, Andrew

298

PATENTES INTERNACIONAIS RECENTES ORDONEZ, Juan Carlos ; Ruiz, C. O. ; SOUZA, Jeferson vila ; Vargas, Jos  

E-Print Network [OSTI]

;WO2012050608-A1 - Photo-bioreactor for growing algae e.g. microalgae within nutrient medium, comprises support frame, horizontal bioreactor tubes, gassing/degassing housings, pH sensor, temperature sensor, and pump for circulating nutrient medium. 2012, Estados Unidos. Patente: Privilgio de Inovao

Paran, Universidade Federal do

299

LERU Roadmap foR REsEaRch data  

E-Print Network [OSTI]

LERU Roadmap foR REsEaRch data LERU REsEaRch data WoRking gRoUp University of Amsterdam, Responsibilities and Skills 28 7 Recommendations 31 #12;3 INTRODUCTION The LERU Roadmap for Research Data that LERU members need to act. In 2011, the LERU community of Chief Information Officers produced a Roadmap

Zürich, Universität

300

IBL General Meeting 1 November 6, 2009  

E-Print Network [OSTI]

Meeting 4 AOC 10 Gb/s VCSEL irradiation annealing w/o long twisted/ coiled fiber Good optical power;IBL General Meeting 11 Summary AOC 10 Gb/s arrays have good optical power after irradiation hardness of VCSELs Summary K.K. Gan #12;IBL General Meeting 3 850 nm VCSEL Irradiation 2006-7: !~2

Gan, K. K.

Note: This page contains sample records for the topic "fdb fcns wo" 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

IBL General Meeting 1 February 12, 2010  

E-Print Network [OSTI]

Meeting 3 AOC 10 Gb/s VCSEL w/o long twisted/ coiled fiber Reasonable optical power for 6 arrays irradiated slow recovery of optical power during annealing ! need to irradiate a sample of 20 arraysIBL General Meeting 1 February 12, 2010 Test Results on Optical Link Components A. Adair, W

Gan, K. K.

302

October 2, 2009 Radiation-Hardness of VCSEL/PIN  

E-Print Network [OSTI]

#12;RD09 6 AOC 10 Gb/s VCSEL irradiation annealing 145 µW w/o long twisted/ coiled fiber Good optical power for 6 arrays irradiated await return of arrays to Ohio State for annealing arrays K.K. Gan #12;RD09 13 Summary AOC 10 Gb/s arrays have good optical power after irradiation

Gan, K. K.

303

Joint ATLAS/CMS SLHC Opto WG 1 March 4, 2010  

E-Print Network [OSTI]

ATLAS/CMS SLHC Opto WG 4 AOC 10 Gb/s VCSEL w/o long twisted/ coiled fiber Reasonable optical power for 6 arrays irradiated slow recovery of optical power during annealing " need to irradiate Irradiation After 3 years of irradiating ~2 samples/device with 24 GeV protons at CERN, the following

Gan, K. K.

304

Generation and growth rates of nonlinear distortions in a traveling wave tube John G. Wohlbier, Ian Dobson, and John H. Booske  

E-Print Network [OSTI]

Generation and growth rates of nonlinear distortions in a traveling wave tube John G. Wo the generation of intermodulation frequencies and calculate their growth rates. The model describes the evolution rates is derived and compared to simulation results. DOI: 10.1103/PhysRevE.66.056504 PACS number s : 52

Dobson, Ian

305

Eur. Phys. J. B 16, 205208 (2000) THE EUROPEAN  

E-Print Network [OSTI]

conductivity, thermoelectric effects, etc.) Recently high-temperature superconductivity in WO3 samples doped the structure is modulated so that superconductivity only develops at the surface, is very intriguing. While in field cooled and zero-field cooled modes suggest superconductivity of type II. Further experiments

Leonardo, Degiorgi

306

Z-Selective Olefin Metathesis Reactions Promoted by Tungsten Oxo Alkylidene Complexes  

E-Print Network [OSTI]

Addition of LiOHMT (OHMT = O-2,6-dimesitylphenoxide) to W(O)(CH-t-Bu)(PMe[subscript 2]Ph)[subscript 2]Cl[subscript 2] led to WO(CH-t-Bu)Cl(OHMT)(PMe[subscript 2]Ph) (4). Subsequent addition of Li(2,5-Me[subscript 2]C[subscript ...

Takase, Michael K.

307

Studies of epithermal neutrons in uranium, heavy water lattices  

E-Print Network [OSTI]

Measurements related to reactor physics parameters were made in three heavy water lattices. The three lattices studied consisted of 0.250-inch-diameter, 1.03 w/o U2 3 5 uranium fuel rods arranged in triangular arrays and ...

D'Ardenne, Walter Herbert

1964-01-01T23:59:59.000Z

308

Towards a Taxonomy for Web Observatories Web Science Institute  

E-Print Network [OSTI]

Towards a Taxonomy for Web Observatories Ian Brown Web Science Institute University of Southampton University of Southampton Southampton, SO17 1BJ, UK +44 (0)23 8059 5000 wh@soton.ac.uk Lisa Harris Web.j.harris@soton.ac.uk ABSTRACT In this paper, we propose an initial structure to support a taxonomy for Web Observatories (WO

309

December 9, 2008 Conservation  

E-Print Network [OSTI]

of choice Ultra-supercritical PC - Early commercial Any of the above w/fluidized bed combustion - Commercial ability to construct a completed plant on time · Moderately-high fixed costs Fuel price risk · Abundant in Montana) from executing long-term contracts for coal plants w/o CSS. · Post-combustion CO2 separation

310

How We Tell C o m m u n i C ati o n S ta n da r d S  

E-Print Network [OSTI]

Identity 83 Section nine Web Communication Standards 91 Section ten Additional Information 105 Section color. PANTONE® is the property of Pantone, Inc. #12;3 Section one Welcome 5 Section t Wo Brand Positioning 9 Section three University Marks 23 Section four Visual Style 39 Section five University

Oregon, University of

311

DVR Rates Fiscal Year 2014 Division of Veterinary Resources  

E-Print Network [OSTI]

veterinarian. Acute and Intensive Care 14/28 Complex Service Price Anesthesia Prep & Induction - Dog $107.04 Anesthesia Prep & Induction - Pig $90.04 Anesthesia Prep & Induction - Rabbit $42.37 Anesthesia Prep w/o Induction - Rabbit $14.50 Anesthesia Recovery - Standard $57.37 Anesthesia Recovery - Complex $172

Bandettini, Peter A.

312

Chromatic instabilities in cesium-doped tungsten bronze nanoparticles  

SciTech Connect (OSTI)

Nanoparticles of alkali-doped tungsten bronzes are an excellent near-infrared shielding material, but exhibit slight chromatic instabilities typically upon applications of strong ultra-violet light or heating in humid environment, which acts detrimentally to long-life commercial applications. Origin of the chromatic instabilities in cesium-doped tungsten bronze has been investigated, and it has been found that the coloration and bleaching processes comprised electronic exchanges which accelerate or depress the polaron excitation and the localized surface plasmon resonance. Coloration on UV illumination is evidenced by electron diffraction as due to the formation of H{sub x}WO{sub 3}, which is considered to take place in the surface Cs-deficient WO{sub 3} region via the double charge injection mechanism. On the other hand, bleaching on heating in air and in humid environment is shown to accompany the extraction of Cs and electrons from Cs{sub 0.33}WO{sub 3} by X-ray photoelectron spectroscopy and X-ray diffraction analysis and is concluded to be an oxidation of Cs{sub 0.33}WO{sub 3} on the particle surface.

Adachi, Kenji, E-mail: kenji-adachi@ni.smm.co.jp; Ota, Yosuke; Tanaka, Hiroyuki; Okada, Mika; Oshimura, Nobumitsu; Tofuku, Atsushi [Ichikawa Research Laboratories, Sumitomo Metal Mining Co., Ltd., Ichikawa 272-8588 (Japan)

2013-11-21T23:59:59.000Z

313

Identified, Misidentified, and Disidentified: Subject Formation and Reformation in American Law and Literature  

E-Print Network [OSTI]

1863, no. 17, 12 Stat. 1268 (1863). Id. U.S. C ONST . amend.68 Cong. Ch. 190; 43 Stat. 153 (1924). Id. at 7(b). Id. It1870; Amendment at 16 Stat. 254. Id. See, e.g. , Yick Wo v.

Perez, Aurelio Jose

2010-01-01T23:59:59.000Z

314

I,  

Office of Legacy Management (LM)

cy. IA) 2A, 3A - 8. H. Brown (want. cy. :?A,sA) P. Mb. Balrrara (w'eac. cy. 4A) R. J. Smith, Jr. (w&o. cy. 5A) 4A- 6A - 6A - 7A - SA- SA - 1oA - 6. R. Gtistavson (+nc. cy; bA)-...

315

Courses: Nursing (NURS) Page 357Sonoma State University 2014-2015 Catalog Nursing (NURS)  

E-Print Network [OSTI]

care system reform including nursing's expanded professional role in promoting health and mitigating, and Nursing majors only. nurS 303 MAternity & WoMen'S HeALtH CAre (6) Seminar, 4 hours; practicum, 2 hours to the principles of mental health and illness. Nursing care therapeutics with populations experienc- ing mental

Ravikumar, B.

316

Activation Energy of Tantalum-Tungsten Oxide Thermite Reaction  

SciTech Connect (OSTI)

The activation energy of a high melting temperature sol-gel (SG) derived tantalum-tungsten oxide thermite composite was determined using the Kissinger isoconversion method. The SG derived powder was consolidated using the High Pressure Spark Plasma Sintering (HPSPS) technique to 300 and 400 C to produce pellets with dimensions of 5 mm diameter by 1.5 mm height. A custom built ignition setup was developed to measure ignition temperatures at high heating rates (500-2000 C {center_dot} min{sup -1}). Such heating rates were required in order to ignite the thermite composite. Unlike the 400 C samples, results show that the samples consolidated to 300 C undergo an abrupt change in temperature response prior to ignition. This change in temperature response has been attributed to the crystallization of the amorphous WO{sub 3} in the SG derived Ta-WO{sub 3} thermite composite and not to a pre-ignition reaction between the constituents. Ignition temperatures for the Ta-WO{sub 3} thermite ranged from approximately 465-670 C. The activation energy of the SG derived Ta-WO{sup 3} thermite composite consolidated to 300 and 400 C were determined to be 37.787 {+-} 1.58 kJ {center_dot} mol{sup -1} and 57.381 {+-} 2.26 kJ {center_dot} mol{sup -1}, respectively.

Cervantes, O; Kuntz, J; Gash, A; Munir, Z

2010-02-25T23:59:59.000Z

317

In the Shadow of the Cell-Phone  

E-Print Network [OSTI]

K. Tracking himself, so the FBI won't have to. NJ.com, Newtracking_himself_so_t he_fbi_wo.html> Accessed 8 July 2009 [he was held back by the FBI in 2003 on suspicion of being a

Hansen, Lone Koefoed

2009-01-01T23:59:59.000Z

318

DIE GUSTAF-DALMAN-SAMMLUNG Pflanzen in Palstina  

E-Print Network [OSTI]

Gilead, wo am wadi es-selihi mattblauer Reiherschnabel und purpurblaue Salbei mit violetten Blttchen an den Enden der Stengel, und am wadi er-rumemin die himmel- blaue Anchuchsa, die lilafarbene Rauke und ein Herbarbeleg, den Dalman auf einer Expedition von Jerusalem zum See Tiberias am wadi er

Greifswald, Ernst-Moritz-Arndt-Universitt

319

MultiCriteria Decision Making for Sustainability-Oriented Chemical Process Design  

E-Print Network [OSTI]

MultiCriteria Decision Making for Sustainability-Oriented Chemical Process Design Xun Jin and Karen), Sustainability, Multi-Objective Programming (MOP), Williams-Otto (WO) process, Multiobjective Evolutionary, sustainability has more than ever been elaborated in a wide variety of contexts, including chemical process

High, Karen

320

New Technique for the Measurement of the Scintillation Efficiency of Nuclear Recoils  

E-Print Network [OSTI]

We present a new technique developed for the measurement of the scintillation efficiency of nuclear recoils in solid scintillators. Using this technique we measured the quenching of the scintillation efficiency for the various recoiling nuclei in CaWO4 crystals which are used in direct Dark Matter searches.

Jelena Ninkovic; Peter Christ; Godehard Angloher; Dieter Hauff; Partick Huff; Emilija Pantic; Federica Petricca; Franz Proebst; Wolfgang Seidel

2006-04-05T23:59:59.000Z

Note: This page contains sample records for the topic "fdb fcns wo" 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

REFERENCE: The Blue Planet An Introduction to Earth System  

E-Print Network [OSTI]

convection cells would transfer heat from equatorial regions, where the solar energy per unit area is parallel to the isobars. #12;This map of North America shows upper-atmosphere wind flow. The lines is greatest, to the poles, where the solar input is least. The equatorial region wo

Gilbes, Fernando

322

The School of Music of the College of Arts and Sciences  

E-Print Network [OSTI]

No. 3 in C Major, WoO 36 Ludwig van Beethoven Allegro vivace (1770-1827) Adagio con espressione Rondo--Allegro Allegro (1833-1897) Intermezzo--Allegro ma non troppo Andante con moto Rondo alla Zingarese #12;PR EVIEW

Grissino-Mayer, Henri D.

323

Egyptian Journal of Natural History, 2007, Vol. 4 , pp 1 -9 Printed in Egypt. Egyptian British Biological Society (EBB Soc)  

E-Print Network [OSTI]

Egyptian Journal of Natural History, 2007, Vol. 4 , pp 1 - 9 © Printed in Egypt. Egyptian British. Ampulicidae, Sphecidae & Crabronidae) of Egypt. Part 2: Checklist C. Giles Roche Lot 44, Taman Wong Wo Lo not been recorded from Egypt hitherto (Spilomena, Crossocerus, Lestica). Twenty-four species are recorded

Nottingham, University of

324

NISTIR 5780 Enhancement of R123 Pool Boiling by the  

E-Print Network [OSTI]

This paper presents the heat transfer data used to file international patent WO 94/18282. The data consisted of Commerce Technology Administration National Institute of Standards and Technology #12;NISTIR 5780 of Building Technology Technology Administration 1000 Independence Avenue Mary L. Good, Under SecretaryforTechnology

Oak Ridge National Laboratory

325

Enter a Service Request 2012 Northwestern University 1  

E-Print Network [OSTI]

in FAMIS Self Service. How to log in? Contact the Help Desk for security access to FAMIS. Additional for billing capital and R&R projects. You cannot use this tool to edit Work Orders (WO) or creating child Work Orders. You would not use this tool to enter estimates or projects, or to enter SRs already entered

Shull, Kenneth R.

326

IX International Materials Research Congress: Cancun 2002 A Hybrid Multijunction Photoelectrode for Hydrogen ProductionA Hybrid Multijunction Photoelectrode for Hydrogen Production  

E-Print Network [OSTI]

light H2 O2 Good Hydrogen Efficiency Long Term Chemical Stability Low Cost Materials ­ SS substrates for OER. Nanocrystalline WO3 (University of Geneva): ­ High bandgap (2.5eV), LOW photocurrent ­ Extremely process sensitive Basic Process: heated substrate Fe2O3 condensate aerosol: FeCl3· 6H20 in ethanol

327

Device Selection by a Personal Proxy Agent  

E-Print Network [OSTI]

Device Selection by a Personal Proxy Agent N. Hadibi, K. El-khatib, Eric Z. Zhang, Ken Chan, G. v user to access communication devices currently present in his Personal Area Network (PAN) Performs PreferencesDevice Capability An example Scenario: Connecting Alice and Bob w/o a Personal Proxy Internet Home

von Bochmann, Gregor

328

Engineering&Science MARCH-APRIL 1978  

E-Print Network [OSTI]

ENERGY COST, millsikwe hr I BASELOAD PLANTS STORAGE B A E R y I COAL NUCLEAR GROUND GROUND SOLAR PHOTO decision actually will be made. Hence, there is considerable effort at present to forecast the costs who believe in solar energy production. So it is #12;PLANT ENERGY COST YEAR 2WO PLANT STARTUP T 4

Faraon, Andrei

329

Observations of short-circuiting flow paths within a free-surface wetland in Augusta, Georgia, U.S.A.  

E-Print Network [OSTI]

constructed treatment wetland in Augusta, Georgia were used to quantify the size, distribution, velocity). In treatment wetlands, such heterogeneity nearly always results in reduced contaminant removal (WoObservations of short-circuiting flow paths within a free-surface wetland in Augusta, Georgia, U

Licciardi, Joseph M.

330

Oxygen plasma immersion ion implantation treatment to enhance data retention of tungsten nanocrystal nonvolatile memory  

SciTech Connect (OSTI)

Data retention characteristics of tungsten nanocrystal (W-NC) memory devices using an oxygen plasma immersion ion implantation (PIII) treatment are investigated. With an increase of oxygen PIII bias voltage and treatment time, the capacitancevoltage hysteresis memory window is increased but the data retention characteristics become degraded. High-resolution transmission electron microscopy images show that this poor data retention is a result of plasma damage on the tunneling oxide layer, which can be prevented by lowering the bias voltage to 7?kV. In addition, by using the elevated temperature retention measurement technique, the effective charge trapping level of the WO{sub 3} film surrounding the W-NCs can be extracted. This measurement reveals that a higher oxygen PIII bias voltage and treatment time induces more shallow traps within the WO{sub 3} film, degrading the retention behavior of the W-NC memory.

Wang, Jer-Chyi, E-mail: jcwang@mail.cgu.edu.tw; Chang, Wei-Cheng; Lai, Chao-Sung, E-mail: cslai@mail.cgu.edu.tw [Department of Electronic Engineering, Chang Gung University, Kweishan 333, Taoyuan, Taiwan (China); Chang, Li-Chun [Department of Material Engineering and Center for Thin Film Technologies and Applications, Ming Chi University of Technology, Taishan 24301, New Taipei City, Taiwan (China); Ai, Chi-Fong; Tsai, Wen-Fa [Institute of Nuclear Energy Research, Atomic Energy Council, Longtan 325, Taoyuan, Taiwan (China)

2014-03-15T23:59:59.000Z

331

Transporting of a Cell-Sized Phospholipid Vesicle Across Water/Oil Interface  

E-Print Network [OSTI]

When a cell-sized water droplet, with a diameter of several tens of micro meter, is placed in oil containing phospholipids, a stable cell-sized vesicle is spontaneously formed as a water-in-oil phospholipid emulsion (W/O CE) with a phospholipid monolayer. We transferred the lipid vesicle thus formed in the oil phase to the water phase across the water/oil interface by micromanipulation, which suggests that the vesicle is transformed from a phospholipid monolayer as W/O CE into a bilayer. The lipid vesicle can then be transported back into the oil phase. This novel experimental procedure may be a useful tool for creating a model cellular system, which, together with a microreactor, is applicable as a micrometer-scale biochemical reaction field.

Hase, M; Hamada, T; Yoshikawa, K; Hase, Masahiko; Yamada, Ayako; Hamada, Tsutomu; Yoshikawa, Kenichi

2006-01-01T23:59:59.000Z

332

Comparison of photelectochemical water oxidation activity of a synthetic photocatalyst system with Photosystem II  

E-Print Network [OSTI]

to literature procedures (Scheme 2a).7a,9 MesoITO was loaded onto an ITO-coated glass slide (VisionTek Systems Ltd) by spreading ITO nanoparticles (Aldrich; size; 27 m2 g#1;1 surface area; 90% In2O3 and 10% SnO2) with a geometric surface area... ;2) TOFd (s#1;1) Stability, t1/2 e (min) IPCEmax f (%) APCEmax f (%) mesoITO|PSII 0.60 0.2 0.3 0.03 #5;4 0.125 0.70 nanoWO3|TiO2|NiOx 0.64 0.7 500 8 #4; 10 #1;4 #5;240 50 80 a MesoITO|PSII was employed as working electrode in a pH 6.5 MES solution. NanoWO3...

Lai, Yi-Hsuan; Kato, Masaru; Mersch, Dirk; Reisner, Erwin

2014-06-12T23:59:59.000Z

333

Depth Profile Analysis of New Materials in Hollow Cathode Discharge  

SciTech Connect (OSTI)

In this review the possibility of hollow cathode discharge for depth profile analysis is demonstrated for several new materials: planar optical waveguides fabricated by Ag+-Na+ ion exchange process in glasses, SnO2 thin films for gas sensors modified by hexamethildisilazane after rapid thermal annealing, W- and WC- CVD layers deposited on Co-metalloceramics and WO3- CVD thin films deposited on glass. The results are compared with different standard techniques.

Djulgerova, R.; Mihailov, V.; Gencheva, V.; Popova, L.; Panchev, B. [Institute of Solid State Physics - Bulgarian Academy of Sciences, 1784 Sofia (Bulgaria); Michaylova, V. [Technical University of Sofia, 1797 Sofia (Bulgaria); Szytula, A.; Gondek, L.; Dohnalik, T.M. [Smoluchowski Institute of Physics - Jagellonian University, 30-059 Cracow (Poland); Petrovic, Z.Lj. [Institute of Physics, 11080 Zemun, Belgrade (Serbia and Montenegro)

2004-12-01T23:59:59.000Z

334

Structure determination of {alpha}-La{sub 6}W{sub 2}O{sub 15}  

SciTech Connect (OSTI)

The structure of the high temperature alpha form of La{sub 6}W{sub 2}O{sub 15} has been determined ab-initio from high temperature laboratory X-ray and neutron time-of-flight data. This tungstate crystallizes in the non-centrosymmetric orthorhombic space group (No. 20) C222{sub 1}, with Z=2, a=12.6250(2) A, b=9.1875(1) A, c=5.9688(1) A. The structure comprises [O{sub 2}La{sub 3}] infinite ribbons and is better described by the structural formula [O{sub 2}La{sub 3}]{sub 2}[WO{sub 5.5}]{sub 2}. Using this description we can understand the strong structural similarity of the present compound with compounds of the general composition BiM{sub 2}AO{sub 6} (M=Cu, Mg, Zn, Mn, Cd, Ca, Pb; A=P, As, V) described as [O{sub 2}M{sub 2}Bi][AO{sub 4}]. The [WO{sub 5.5}] entity implies oxygen disorder in the material. - Graphical abstract: Projection of the polyhedra around the tungsten atom. Atoms labelled in grey are occupied at 50%. Short oxygen-oxygen distances are marked. The polyhedra represents WO{sub 5.5} that is related to the structural unit W{sub 2}O{sub 11} unit. Alpha-La{sub 6}W{sub 2}O{sub 15} could be described as [O{sub 2}La{sub 3}]{sub 2}[WO{sub 5.5}]{sub 2}.

Chambrier, M-H., E-mail: marie-helene.chambier.etu@univ-lemans.f [Laboratoire des Oxydes et Fluorures, UMR-CNRS 6010, Universite du Maine, 72085 Le Mans Cedex 9 (France); Ibberson, R.M. [ISIS Facility, STFC-Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot OX11 0QX (United Kingdom); Goutenoire, F., E-mail: francois.goutenoire@univ-lemans.f [Laboratoire des Oxydes et Fluorures, UMR-CNRS 6010, Universite du Maine, 72085 Le Mans Cedex 9 (France)

2010-06-15T23:59:59.000Z

335

Factors influencing plant succession following fire in Ashe juniper woodland types in Real County, Texas  

E-Print Network [OSTI]

FACTORS INFLUENCING PLANT SUCCESSION FOLLOWING FIRE IN ASHE JUHIPER WOODLAND TYPES IN REAL COUNTY& TEXAS By DONAID L. RUSS Approved as to style end content by: ~c-". '~ Z). 4:-. = Chairman of Committee Bead of Depantme Nay l954. LIBgARV A... A M GOLLEGL OF TEXAS FACTORS INFLUENCING PLANT SUCCESSION FOLLOWING FIRE IN ASHE JUNIPER WO(NILAND TIPES IN REAL COUNTI, TEUIS Submitted to the Graduate School of the Agricultural and Mechanical College of Texas in partial fulfillment oi...

Huss, Donald Lee

1954-01-01T23:59:59.000Z

336

The Philosophy and Feasibility of Dual Readout Calorimetry  

SciTech Connect (OSTI)

I will discuss the general physical ideas behind dual-readout calorimetry, their implementation in DREAM (Dual REAdout Module) with exact separation of scintillation and Cerenkov light, implementation with mixed light in DREAM fibers, anticipated implementation in PbWO4 crystals with applications to the 4th Concept detector and to CMS, use in high energy gamma-ray and cosmic ray astrophysics with Cerenkov and N2 fluorescent light, and implementation in the 4th Concept detector for muon identification.

Hauptman, John [Physics, Iowa State University, Ames IA 50011 (United States)

2006-10-27T23:59:59.000Z

337

Contstraint effects of shallow cracks in structures containing fillet weld toe cracks  

E-Print Network [OSTI]

. This work assumes that the strain hardening exponent is defined using Barsom and Rofle's experimental correlation (Barsom and Rolfe, 1987) (7) where oo is in ksi. The base metal material property is representative of a mild steel where o. WO ksi, E=30..., 000 ksi, ~. 3. The remainder of the material properties calculated from Barsom and Rolfe's correlation between 28 strain hardening exponent and reference stress (Barsom and Rolfe, 1987) are summarized in Table 3. The modulus of elasticity, Poisson...

Neligon, Melinda T

2012-06-07T23:59:59.000Z

338

A theory for radial jet reattachment flow  

E-Print Network [OSTI]

, the velocity profile and mass entrainment are given accordrng to Goertler's t. wo- dimensional free jet theory. His analysrs of a free jet also assumes that. the turbulent eddy viscosity is constant ar ross the jet. (6) For the case of laminar flow... of total jet momentum. Laminar jet flow is approximated using Schlichting's velocity profile, whereas turbulent flow calculations are made assuming Goertler's velocity profile. Momentum integral principles are applied to the flow at reattachment...

Hadden, Lynne Loise

2012-06-07T23:59:59.000Z

339

JOURNAL DE PHYSIQUE Colloque C5, suppl6ment au n08, Tome 46, aoOt 1985 page C5-487  

E-Print Network [OSTI]

that at tensile strain rates from 10-4 to ~3000/son several grades of depleted uranium small differences OF QUENCHING RATE ON THE TEMPERATURE AND STRAIN-RATE S E N S I T I V I T Y OF URANIUM 2W/o MOLYBDENUM ALLOY G- anical properties of uranium and its alloys. In recent work (2), however, it has been shown

Paris-Sud XI, Université de

340

Evaluation of the environmental influence on the improvement of two populations of maize (Zea mays L.) through mass selection  

E-Print Network [OSTI]

emphasis on *wo characters: resistance to the downey mildew and adaptation to the harsh local climatic conditions, especially drought. The experiment to evaluate the composites was con- ducted during the summer of 1981 on the university farm near...) and its correlation with the 17 evaporation as computed by Penman's formula (6, 77). They reached the conclusion that if the standardization of' the pan environment is carefully maintained (25) and if' strong, dry winds are not frequent (47), the use...

Adal, Nagy Abou

1982-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fdb fcns wo" 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

Working with Partners  

E-Print Network [OSTI]

manager; Leslie Lee, program assistant; Jaclyn Tech, software applications manager; Courtney Swyden, training program coordinator; and Supercinski. TWRI?s Water Resources Training Program offers training Story by Melanie Orth txH2O | pg. 3... ary Payt on, D r. B. L. Ha rris, and Kath y Wo odar d; (front row, left to right) Aaron Hoff, Danielle Supercinski, Allen Berthold, Kathy Wythe, Leslie Lee, Courtney Swyden, and Sarah Seidel. ...

Orth, Melanie

2010-01-01T23:59:59.000Z

342

Working with partners: Institute is making every drop count  

E-Print Network [OSTI]

manager; Leslie Lee, program assistant; Jaclyn Tech, software applications manager; Courtney Swyden, training program coordinator; and Supercinski. TWRI?s Water Resources Training Program offers training Story by Melanie Orth txH2O | pg. 3... ary Payt on, D r. B. L. Ha rris, and Kath y Wo odar d; (front row, left to right) Aaron Hoff, Danielle Supercinski, Allen Berthold, Kathy Wythe, Leslie Lee, Courtney Swyden, and Sarah Seidel. ...

Orth, Melanie

2011-01-01T23:59:59.000Z

343

Entomology 489 Field Entomology  

E-Print Network [OSTI]

glass-topped insect drawer (w/ foam bottom) 48.00 Storage glass-topped insect drawer (w/o foam bottom Petri dishes 0.00 2-dram glass vials with lids 0.00 Specimen large glass killing jar with lid 2.00 Killing small glass killing jar with lid 1.00 squeeze bottles with filp-top lids 3.00 box of Kimwipes 2

Behmer, Spencer T.

344

851 S.W. Sixth Avenue, Suite 1100 Steve Crow 503-222-5161 Portland, Oregon 97204-1348 Executive Director 800-452-5161  

E-Print Network [OSTI]

and Conservation Council Power System Costs and CO2 Emissions: 2030 0 10 20 30 40 50 60 70 80 90 Carbon Risk $45 COTonsPerYear(GenBased) Cost w/ CO2 Tax Cost w/o CO2 Tax CO2 Emissions 2005 CO2 Emissions #12;4 Northwest Power;5 Northwest Power and Conservation Council Frequency Distribution of CO2 Emissions in Carbon Target Scenarios

345

Titanium diboride-chromium diboride-yttrium titanium oxide ceramic composition and a process for making the same  

DOE Patents [OSTI]

A ceramic composition is described. The ceramic composition consists essentially of from about 84 to 96 w/o titanium diboride, from about 1 to 9 w/o chromium diboride, and from about 3 to about 15 w/o yttrium-titanium-oxide. A method of making the ceramic composition is also described. The method of making the ceramic composition comprises the following steps: Step 1--A consolidated body containing stoichiometric quantities of titanium diboride and chromium diboride is provided. Step 2--The consolidated body is enclosed in and in contact with a thermally insulated package of yttria granules having a thickness of at least 0.5 inches. Step 3--The consolidated body enclosed in the thermally insulated package of yttria granules is heated in a microwave oven with microwave energy to a temperature equal to or greater than 1,900 degrees centigrade to sinter and uniformly disperse yttria particles having a size range from about 1 to about 12 microns throughout the consolidated body forming a densified body consisting essentially of titanium diboride, chromium diboride, and yttrium-titanium-oxide. The resulting densified body has enhanced fracture toughness and hardness.

Holcombe, Cressie E. (Knoxville, TN); Dykes, Norman L. (Oak Ridge, TN)

1991-01-01T23:59:59.000Z

346

Process for making a titanium diboride-chromium diboride-yttrium titanium oxide ceramic composition  

DOE Patents [OSTI]

A ceramic composition composition is described. The ceramic composition consists essentially of from about 84 to 96 w/o titanium diboride, from about 1 to 9 w/o chromium diboride, and from about 3 to aobut 15 w/o yttrium-titanium-oxide. A method of making the ceramic composition is also described. The method of making the ceramic composition comprises the following steps: Step 1--A consolidated body containing stoichiometric quantities of titanium diboride and chromium diboride is provided. Step 2--The consolidated body is enclosed in and in contact with a thermally insulated package of yttria granules having a thickness of at least 0.5 inches. Step 3--The consolidated body enclosed in the thermally insulated package of yttria granules is heated in a microwave oven with microwave energy to a temperature equal to or greater than 1,900 degrees centigrade to sinter and uniformly disperse yttria particles having a size range from about 1 to about 12 microns throughout the consolidated body forming a densified body consisting essentially of titanium diboride, chromium diboride, and yttrium-titanium-oxide. The resulting densified body has enhanced fracture toughness and hardness.

Holcombe, Cressie E. (Knoxville, TN); Dykes, Norman L. (Oak Ridge, TN)

1992-01-01T23:59:59.000Z

347

Process for making a titanium diboride-chromium diboride-yttrium titanium oxide ceramic composition  

DOE Patents [OSTI]

A ceramic composition is described. The ceramic composition consists essentially of from about 84 to 96 w/o titanium diboride, from about 1 to 9 w/o chromium diboride, and from about 3 to about 15 w/o yttrium-titanium-oxide. A method of making the ceramic composition is also described. The method of making the ceramic composition comprises the following steps: Step 1--A consolidated body containing stoichiometric quantities of titanium diboride and chromium diboride is provided. Step 2--The consolidated body is enclosed in and in contact with a thermally insulated package of yttria granules having a thickness of at least 0.5 inches. Step 3--The consolidated body enclosed in the thermally insulated package of yttria granules is heated in a microwave oven with microwave energy to a temperature equal to or greater than 1,900 degrees centigrade to sinter and uniformly disperse yttria particles having a size range from about 1 to about 12 microns throughout the consolidated body forming a densified body consisting essentially of titanium diboride, chromium diboride, and yttrium-titanium-oxide. The resulting densified body has enhanced fracture toughness and hardness. No Drawings

Holcombe, C.E.; Dykes, N.L.

1992-04-28T23:59:59.000Z

348

Materials testing at the Hanna-IV and Hoe Creek-III in situ coal-gasification sites  

SciTech Connect (OSTI)

Candidate structural alloys were exposed to the direct product gas stream during three different in situ coal gasification experiments at two sites. Physical appearance and chemical analysis indicate that the coating on the specimens following exposure is typical of condensed hydrocarbons, coal char, coal ash, and mineral particles from the overburden. Deposits on specimens from one test had a fairly high concentration of sulfur (about 8 w/o) while the others had very low sulfur concentrations (0.313 w/o and 0.014 w/o, respectively). Energy-dispersive x-ray spectra indicate that corrosion occurred principally by oxidation, with some sulfidation. Mean penetration rates expressed in millimetres/year were calculated from weight loss data. No material evaluated showed a truly unacceptable degradation. There was no consistent difference in the amount of material removed from specimens with or without welds. Specimens from one test experienced no consistent difference in material removal between different exposure angles; a consistent difference in material loss and dents from particle impact indicated that erosion may have occurred in the other two tests. There was no indication of carburization, decarburization, or severe localized attack in the form of pitting or intergranular corrosion on any of the specimens examined. Results obtained for the flame-sprayed 316 SS specimens and one of the Alonized specimens indicated that use of these processes may be questionable in this environment.

Loop, R.B.; LaRue, D.M.

1981-03-01T23:59:59.000Z

349

ROLES OF SULFOTRANSFERASE ENZYMES IN TRANS-PLACENTAL DISPOSITION  

E-Print Network [OSTI]

activities in BeWo?????.55 2.3.3 Effect of inhibitors 2,6-dichloro-4-nitrophenol (DCNP) and NaCl?....58 2.3.4 Thermal stability?????????????????????.58 2.3.5 17?-estradiol and dehydroepiandrosterone sulfation activities in Be... connective tissue, and the fetal capillary endothelium (Figures 1.2.1 and 1.2.2). Figure 1.2.1 The mature human placenta showing the villous tree extending from the chorionic plate into the intervillous space where they are surrounded...

Mitra, Pallabi

2009-01-28T23:59:59.000Z

350

The World of Dark Shadows Issue 26  

E-Print Network [OSTI]

Stroka and Humbert Allen Astredo . Hope you enjoy the material feat . them, and the characters they created, as \\'Iel1 as the t~r~ng regular features. 0 er !Text issue is the special Joan Bennett/Dennis Pt.(Cont. pg. 43) 4. . a r~ck one, 5. EPITAPHS..., who enterest i n stealth, his nose behind him, his face turned backward, who loses that for which he came. " Run out, thou who comest in darkness, w~o enterest in stealth, her nose behind her, her face turned backward, who loses that for which she...

Multiple Contributors

1980-01-01T23:59:59.000Z

351

Low-temperature processable amorphous In-W-O thin-film transistors with high mobility and stability  

SciTech Connect (OSTI)

Thin-film transistors (TFTs) with a high stability and a high field-effect mobility have been achieved using W-doped indium oxide semiconductors in a low-temperature process (?150?C). By incorporating WO{sub 3} into indium oxide, TFTs that were highly stable under a negative bias stress were reproducibly achieved without high-temperature annealing, and the degradation of the field-effect mobility was not pronounced. This may be due to the efficient suppression of the excess oxygen vacancies in the film by the high dissociation energy of the bond between oxygen and W atoms and to the different charge states of W ions.

Kizu, Takio; Aikawa, Shinya; Mitoma, Nobuhiko; Shimizu, Maki; Gao, Xu; Lin, Meng-Fang; Tsukagoshi, Kazuhito, E-mail: TSUKAGOSHI.Kazuhito@nims.go.jp [International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan); Nabatame, Toshihide [MANA Foundry and MANA Advanced Device Materials Group, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan)

2014-04-14T23:59:59.000Z

352

The hero's story: typology, biblical allusion, and persona in Alvar Nu?n?ez Cabeza de Vaca's Narrative  

E-Print Network [OSTI]

Vaca was able to combine components of both the classical 19 (warrior) hero and Christian (savior) hero to reveal himself as a Renaissance hero. In The Mi in dom of t Franciscans in the ~Ne W~o g, John Leddy Phelan observes that in Spain during... his Observants as a model; in 1517 the Observants became the Franciscan Order "when all the Conventual monasteries in Spain were closed" (45-46) . Phelan believes that "the methods of exegesis-- the typological interpretation of the Bible...

Bell, Glenna Gail

1991-01-01T23:59:59.000Z

353

Validation of an improved computer algorithm for precipitation echo classification  

E-Print Network [OSTI]

-40-90 0istttttt:e (t. 'm3 10 00 Xt +0 00 50 70 10 20 00 00 50 59 70 9t0 20 Fig. 7. R0fk0ttvltg (0i tg0 3, 1 king 'tlt1tflt10 ffvtB N!0 f(34A BfNI Af)RAD t8dQt8 0stBg fhV tBHxlmUttt t'0000ttvttg 08fit0 tB0800I'0d gg th0 fWO ttKI0ts, Cttttt(tttiS Sl'0 000...

Amrhein, Edward Thomas

2001-01-01T23:59:59.000Z

354

The reproductive pattern of the swamp rabbit in Brazos County, Texas  

E-Print Network [OSTI]

nseminations, except the one attempted on doe Wo. 30, resulted in the does' display1ng distended teats by at, least the twent1eth day following insemination. This symptom may have appeared before the twentieth day, but in most cases earl1er ex- aminations... ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ p ~ ~ ~ ~ ~ ~ 19 3 ~ X-Iay of gravid doe at 37 days of gestation 20 4 ~ Representative embI yos and young desorlbed Table' 5 ~ ~ ~ ~ e ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ 37 5 ~ Doe Mo. 29 photographed in her cage a few hours after her first birth...

Hunt, Thomas Phillip

1956-01-01T23:59:59.000Z

355

Fluctuations in Avalanche Photodiode Structure  

SciTech Connect (OSTI)

The number of primary photo-electrons and the excess noise factor of the Avalanche photodiode (APD) are important parameters for the energy resolution of the crystal-APD system. In the present paper, the mean signal value and its fluctuations have been investigated for the well defined silicon Hamamatsu S8148 APD structure as a function of incident photons wavelength. Calculations were made with a Single Particle Monte Carlo simulation technique. Based on this work, the performance of the Hamamatsu S8148 APD as a photodetector for the PbWO4 scintillation light has been discussed.

Kocak, Fatma; Tapan, Ilhan [Department of Physics, Uludag University, 16059, Bursa (Turkey)

2007-04-23T23:59:59.000Z

356

Development of Methods for Safe Processing of Home Canned Meat.  

E-Print Network [OSTI]

100 minutes, with "flonling steam" 106 minutes. When steaming is done over a low flame on a gas or on a kerosene stove, the time required to obtain "flowing steam" may be as much as 2 or 3 hours. In such cases the time after "flowing steam" may... enough sealing I 1 I 1 Kerosene stow 22 Low gas flame 1 2 Time in hours 9 1 Tine in hours Chart 4. Heat penetration curves for Wo. 1 cans during heating before seallng kerosene stove and over low gas flame. 10 BULLETIN NO. 6.35, TEXAS...

Turk, R. D. (Richard Duncan); Cover, Sylvia; Kerns, A. H. (Albert Harrison)

1943-01-01T23:59:59.000Z

357

Comparison between Single Shot Micromachining of Silicon with Nanosecond Pulse Shaped IR Fibre Laser and DPSS UV Laser  

E-Print Network [OSTI]

-size pits could then be imprinted onto the sol-gel film for mass production [6]. Besides scribing and edge isolation, photovoltaic cells (black silicon) were textured to increase This work was supported in part by the Engineering and Physical Sciences... and William ONeill are with the Centre for Industrial Photonics, Institute for Manufacturing, Department of Engineering, University of Cambridge, 17 Charles Babbage Road, Cambridge, CB3 0FS, U.K. (e-mail: mrs46@cam.ac.uk; wo207@cam.ac.uk). solar...

Li, Kun; Sparkes, Martin; O'Neill, William

2014-02-19T23:59:59.000Z

358

Aerial photographic monitoring of spruce damage in Bayerischer Wald National Park, Federal Republic of Germany  

E-Print Network [OSTI]

) August, 1989 Forest damage or '%aldschaden" has became a matter of increasing ~ in ~ ~. In 1983, 34 ~ of the forests of the F~ ~lic of ~ were found to be affected. In Southern ~'s state of Bavaria, 45 percent of the forests were found... to be In an attempt to detecnine the rate at which the forest ~ phenomenon ? particularly with ~ to Norway spruce (Picea abies Karst. ) ? is wo~ in Bayerischer Weld National Park, an air photo interpretation study was conducted utilizing large scale 1:3000 color...

Goebel, John Martin

1989-01-01T23:59:59.000Z

359

The magnetic properties of the iron-rich, iron-nickel-zinc alloys  

E-Print Network [OSTI]

this density. The samples were again sealed in steel jackets with a 12 small amount of zinc to maintain the vapor pressure high enough to al- low the impregnated zinc to remain in the samples. The jacketed speci- 0 mens were heated to 1000 C for two hours.... This curve indicated that the coercive force is strongly affected by the zinc content of the al- loy. Fig, 12 is a plot of hardness against nickel content. The 10 w/o Zn al'loys gave the greatest hardness with low nickel content. As the nickel content...

Gupton, Paul Stephen

1961-01-01T23:59:59.000Z

360

Kraith Collected Issue 4  

E-Print Network [OSTI]

who followed the saga of "denonstarting," we have, this issue, the tale of T'Uriamne's midget. If you can find that typo, you might be able to figure out what it was s~~pposed to be. Something about an air car , I think. This issue will probably....ften wo.ndered hew she to.lerated it. "This drink is delicio.usly refreshing." Sarek seemed to. accept her co.mment as the terminatio.n o.f the visit. With quiet co.urtesy, he sent fer a car and had her driven heme, repeatedly assuring her that T...

Lichtenberg, Jacqueline; Clark, Beverly

1974-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fdb fcns wo" 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

Double beta decay of ^{64,70}Zn and ^{180,186}W isotopes  

E-Print Network [OSTI]

The results of the experimental investigations of double beta processes in Zinc and Tungsten isotopes with the help of middle volume (117 g, 168 g and 699 g) low-background ZnWO_4 crystal scintillators are presented. The experiment was carried out in the low-background "DAMA/R&D" set-up at the Gran Sasso National Laboratories of the INFN (Italy) at a depth of \\approx3600 m w.e. The total measurement time exceeds ten thousand hours. New improved half-life limits on double electron capture and electron capture with positron emission in ^{64}Zn have been set: T^{2\

D. V. Poda

2011-12-05T23:59:59.000Z

362

Simulation study of two-stroke cycle compression ignition engines  

E-Print Network [OSTI]

An analytical model of a &wo-strok& rycl&, r?iprocating, compression-ignition engine fueled with either diesel fuel or dry par&i& le coal fuel was developed to simulate three different two-stroke &. y& l?ngines (similar to three commercial engines.... The submodels developed were for the & I lind& r gas propert irs and for & agin& processes such as combustion, heat transfer. intake and exhaust How, scavenging and work. Diesel combustion was simulated hy?sing a correlation to rno&lel the total heat release...

Kishan, Sandeep

1985-01-01T23:59:59.000Z

363

Alderaan Issue 5  

E-Print Network [OSTI]

, Toledo , OR 43623 USA . 1086 NO. -W~O COMES WiT~ SUMMER Star Wars fandom did not spring up ready-developed in 1977. There was a short time between the appearance of the movie and the first major fan acti vi ties and publications. In science fiction... fandom this was known as the "Eofandom." Put another way, the Eofandom is that period of time when the potential for a fandom exists, but has not yet been realized. With Star Wars fandom, the Eofandom existed for only a few months, but it shows some...

1979-01-01T23:59:59.000Z

364

On the Alpha Activity of Natural Tungsten Isotopes  

E-Print Network [OSTI]

The indication for the ? decay of 180W with a half-life T ? 1/2 =1.1+0.8 ?0.4(stat)0.3(syst)1018 yr has been observed for the first time with the help of the super-low background 116CdWO4 crystal scintillators. In conservative approach the lower limit on half-life of 180W has been established as T ? 1/2 (180W) ? 0.71018 yr at 90 % C.L. Besides, new T ? 1/2 bounds were set for ? decay of

F. A. Danevich A; A. Sh. Georgadze A; V. V. Kobychev A; S. S. Nagorny A; A. S. Nikolaiko A; W

365

An economic study of farm enterprises and enterprise combinations on part-time farms in Northeast Texas with reference to suitability for part-time farm operation  

E-Print Network [OSTI]

are wo~ to bring about desirable agricultural adjusnaent, and trying to improve the level of Livtng in the rural sector of the a@ca. Xt wiLL provide information that will be usefuL in foxmulating program goals end ob- jectives, point out necessary... information for such pro- grams, and provide some to~ques that may be used in pxe- senting and using such information. The information included should also be usefuL to both part-time femur and those consid~ part-time farming. Xt will provide gula...

Burton, Wayne E

1960-01-01T23:59:59.000Z

366

Relationship of endogenous abscisic acid to peach chilling requirement, bloom date and applied gibberellic acid  

E-Print Network [OSTI]

and main- tenance (19, 20, 22, 2G, '. . ", , !6, 47, 56, . Promiz!ant American re ear h rs have been Brs. J. I'I. Corgsz!, F. 0 ~ Iicnnis Jr. , a!zd S. L'. Ste?bridge, Cozgazz's wo "k has insclv. d pear!zcs. EIe a!!d his co-wozk= 's . ve z: a- suzed...). 14 CHAPTER IV RESULTS Experjmental Error Estimates of experimental error are as follows: he average dif- fe ence; 1) among three duplicate flo. . -er. bud samples from the same tree on two dii'ferent dates was . 06 ug, 2) among 3 duplicate extr...

Derickson, Gary Wayne

1977-01-01T23:59:59.000Z

367

Transition-metal pi-complexes of vinyl alcohol: platinum and palladium  

E-Print Network [OSTI]

of acetylacetonato- chl oro(n-vinyl alcohol) platinum( I I ) in d -tetrahydrofuran 8 17 19 21 23 Page Figure 9 Figure 10 Figure 11 Figure 12 Geometry of the methyl groups of acetylacetonatochloro(olefin)- platinum(II) with respect to the olefin ligand...~( Pl H H C-O C~ HsC HO H I CI 2210 IGG IOGI IM 17W INO . 500 IOG 1100 WO ENUNOEO ON I Figure 1 Ir spectrum of acetyl acetonatochl oro(n-vinyl alcohol)platinum(II) Nujol mull between CsI plates Beckman IR12 3. 0 35 4P MICRONS 5P 6. 0 7. 0 8. 0...

Ori, Masaru

1971-01-01T23:59:59.000Z

368

THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS  

E-Print Network [OSTI]

-- #12;[1] [2], [3] [4] [5] 1-best sigmoid 3. 4. 5. 2. 1 Fig. 1 An image of the robot. " " 1 1 1 330 49 3. 1-best s (request, chat) -- 2 -- #12;1 Table 1 Abilities of the robot. CSP / W = (w1, · · · , wn) O = (o1, · · · , ot) (^s, ^W) = argmax (s,W) P(s, W|O) = argmax (s,W) P(O)-1 P(s, W, O) P(s, W, O) P(s, W

Takiguchi, Tetsuya

369

Growth and Characterization of Epitaxial Oxide Thin Films  

E-Print Network [OSTI]

out during past three years has been published as follows: 1. A. Garg, J. A. Leake, and Z. H. Barber, Epitaxial Growth of WO3 Films on SrTiO3 and R- Sapphire, J. Phys.: D, Appl. Phys., 33 (9), 1048 (2000) 2. A. Garg, S. Dunn, and Z. H. Barber, Growth... of these films by 3-D Stranski-Krastanov mode. However, these films did not exhibit any ferroelectric activity. Highly epitaxial (116)-oriented films were deposited on SrTiO3 (110) substrates. These films were also very smooth with root mean square (RMS...

Garg, Ashish

370

Anger camera image generation with microcomputers  

E-Print Network [OSTI]

ANGER CAMERA IMAGE GENERATJON WITH iMICR0C0MPJJTERS A Thesis R, 'RI. MGVGAN NIJ. J. IAPLS SubiniL', ti tc: tbe ' taNua - CnlILEr nf Hnivetui ty ;-'r' Lal . '. . '. 6i', i. -ent oL th: ie9uite. . ;List. )i Lhe 4 El'. : ol MASTER 09 SC ENCE May... that with the u e of an innovat ive 'nterfsce system and appropriate software, a microcomputer was a). le tc acquire, display, and analyze Anger came;a images. The interface board designed for this projec. includes A ? D convert. era, a wo page memory system...

Williams, Karl Morgan

1988-01-01T23:59:59.000Z

371

Range Monitoring with Photo-points  

E-Print Network [OSTI]

Hammer or post driverSpray paintCamera (35 mm preferred) or digital cameraFilm (100 ASA preferred) T wo 6-foot folding rulers or 3-by-3-foot PVC frame (for vertical plots)Farm or ranch map or aerial photographY ellow pad Felt marking penThree-ring binder... convenient frame can be made by two 6-foot folding carpenter ? s rulers folded at their 3-foot position and placed toface each other , collectively forming a square. PVC pipe joined with elbows also may be used. After placing the plot on the ground, mark...

McGinty, Allan; White, Larry D.

1998-08-31T23:59:59.000Z

372

Latin American Theatre Review, Volume 06, Number 2: Front Matter  

E-Print Network [OSTI]

LATIN AMERICAN THEATRE REVIEW a Journal devoted to the Theatre and Drama of Spanish and Portuguese America Editor (il.OR(,l. W. WoODYARI) Associate Editor JOHN S. BRIMIWOOD Assistant Editors WILLIAM R. BLUL RAYMOND D. SOUZA Ml... are available at $4.00 each. Please direct all correspondence to: Lditors, Latin Amernan Theatre Renew. The Center of Latin American Studies, The University of Kansas, Lawrence, Kansas 66U-H. 6/2 LATIN AMERICAN THEATRE REVIEW SPRING1973 Contents Esa luna...

1973-04-01T23:59:59.000Z

373

Crystalline mesoporous tungsten oxide nanoplate monoliths synthesized by directed soft template method for highly sensitive NO{sub 2} gas sensor applications  

SciTech Connect (OSTI)

Graphical abstract: Display Omitted Highlights: ? Mesoporous WO{sub 3} nanoplate monoliths were obtained by direct templating synthesis. ? Enable effective accession of the analytic molecules for the sensor applications. ? The WO{sub 3} sensor exhibited a high performance to NO{sub 2} gas at low temperature. -- Abstract: Controllable synthesis of nanostructured metal oxide semiconductors with nanocrystalline size, porous structure, and large specific surface area is one of the key issues for effective gas sensor applications. In this study, crystalline mesoporous tungsten oxide nanoplate-like monoliths with high specific surface areas were obtained through instant direct-templating synthesis for highly sensitive nitrogen dioxide (NO{sub 2}) sensor applications. The copolymer soft template was converted into a solid carbon framework by heat treatment in an inert gas prior to calcinations in air to sustain the mesoporous structure of tungsten oxide. The multidirectional mesoporous structures of tungsten oxide with small crystalline size, large specific surface area, and superior physical characteristics enabled the rapid and effective accession of analytic gas molecules. As a result, the sensor response was enhanced and the response and recovery times were reduced, in which the mesoporous tungsten oxide based gas sensor exhibited a superior response of 21,155% to 5 ppm NO{sub 2}. In addition, the developed sensor exhibited selective detection of low NO{sub 2} concentration in ammonia and ethanol at a low temperature of approximately 150 C.

Hoa, Nguyen Duc, E-mail: ndhoa@itims.edu.vn [International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST) (Viet Nam); Duy, Nguyen Van [International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST) (Viet Nam)] [International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST) (Viet Nam); Hieu, Nguyen Van, E-mail: hieu@itims.edu.vn [International Training Institute for Materials Science (ITIMS), Hanoi University of Science and Technology (HUST) (Viet Nam)

2013-02-15T23:59:59.000Z

374

Double {beta} experiments with the help of scintillation and HPGe detectors at Gran Sasso  

SciTech Connect (OSTI)

A search for double beta decay of {sup 64,70}Zn, {sup 180,186}W was carried out by using low background ZnWO{sub 4} crystal scintillators, while a CeCl{sub 3} scintillation detector was applied to investigate 2{beta} processes in {sup 136,138,142}Ce. A search for 2{beta} decay of {sup 96,104}Ru, {sup 156,158}Dy, {sup 190,198}Pt and study of 2{nu}2{beta} decay of {sup 100}Mo to the first excited 0{sup +} level of {sup 100}Ru were realized by ultra-low background HPGe {gamma} spectrometry. Moreover, CdWO{sub 4} crystal scintillators from enriched {sup 106}Cd and {sup 116}Cd isotopes were developed to search for 2{beta} decay of {sup 106}Cd and {sup 116}Cd. Finally, experiments aimed to investigate {sup 96,104}Ru and {sup 116}Cd are in progress and a new phase of the experiment to search for 2{beta} processes in {sup 106}Cd is in preparation.

Barabash, A.; Konovalov, S. I.; Umatov, V. I. [Institute of Theoretical and Experimental Physics, Moscow (Russian Federation); Belli, P.; D'Angelo, S.; Di Marco, A. [INFN, Sezione di Roma ''Tor Vergata'', Rome (Italy); Bernabei, R. [INFN, Sezione di Roma ''Tor Vergata '', Rome (Italy); Dipartimento di Fisica, Universita di Roma ''Tor Vergata'', Rome (Italy); Boiko, R. S.; Chernyak, D. M.; Danevich, F. A.; Kobychev, V. V.; Kropivyansky, B. N.; Kudovbenko, V. M.; Nagorny, S. S.; Podviyanuk, R. B.; Polischuk, O. G.; Tretyak, V. I.; Vyshnevskyi, I. M.; Yurchenko, S. S. [Institute for Nuclear Research, Kyiv (Ukraine); Brudanin, V. B. [Joint Institute for Nuclear Research, Dubna (Russian Federation); and others

2011-12-16T23:59:59.000Z

375

Behavior of the electroless composite films plated from a Ni-P bath with metallic dispersion of Zr and Nb powders  

SciTech Connect (OSTI)

An electroless Ni-Zr-P composite film and a Ni-Nb-P composite film were plated and their heat-treating behaviors were investigated. The addition of 20g dm/sup -3/ of metallic powder resulted in a composite film that contained 21.2 weight percent (w/o) of Zr. (13.8 atom percent (a/o)), or 4.8 w/o of Nb. (2.9 a/o), respectively. Both metallic powders were dispersed uniformly throughout the film. The metallic Ni formed by the crystallization on the Ni-P matrix diffused into the metallic powders, and the amorphous Ni-Zr and Ni-Nb phases were formed by heat-treatment at 500/sup 0/ or 300/sup 0/C. Some parts of the amorphous Ni-Zr phases and the metallic Ni phases combined to form intermetallic compounds by heat-treatment at 600/sup 0/C. The nickel-rich parts of the amorphous Ni-Nb phase were converted into a metastable Ni-Nb phase (zeta phase) or a Ni-Nb solid solution by heat-treatment at 700/sup 0/C. The longer heating time at 400/sup 0/C increased the amount of the Ni-Zr amorphous phase: however, it decreased the reactivity of the amorphous Ni-Zr phase. The same heat-treatment of 400/sup 0/C did not give the considerable change on the amorphous Ni-Nb phase.

Osaka, T.; Koiwa, I.; Usuda, M.; Arai, K.; Saito, I.

1989-04-01T23:59:59.000Z

376

Observation of a crossover in kinetic aggregation of Palladium colloids  

E-Print Network [OSTI]

We use field emission scanning electron microscope (FE-SEM) to investigate the growth of palladium colloids over the surface of thin films of WO3/glass. The film is prepared by Pulsed Laser Deposition (PLD) at different temperatures. A PdCl2 (aq) droplet is injected on the surface and in the presence of steam hydrogen the droplet is dried through a reduction reaction process. Two distinct aggregation regimes of palladium colloids are observed over the substrates. We argue that the change in aggregation dynamics emerges when the measured water drop Contact Angel (CA) for the WO3/glass thin films passes a certain threshold value, namely CA = 46 degrees, where a crossover in kinetic aggregation of palladium colloids occurs. Our results suggest that the mass fractal dimension of palladium aggregates follows a power-law behavior. The fractal dimension (Df) in the fast aggregation regime, where the measured CA values vary from 27 up to 46 degrees, according to different substrate deposition temperatures, is Df = 1.75 (0.02). This value of Df is in excellent agreement with kinetic aggregation of other colloidal systems in fast aggregation regime. Whereas for the slow aggregation regime, with CA = 58 degrees, the fractal dimension changes abruptly to Df=1.92 (0.03). We have also used a modified Box-Counting method to calculate fractal dimension of gray-level images and observe that the crossover at around CA = 46 degrees remains unchanged.

M. Ghafari; M. Ranjbar; S. Rouhani

2014-12-27T23:59:59.000Z

377

Stellar evolution with rotation XIII: Predicted GRB rates at various Z  

E-Print Network [OSTI]

We present the evolution of rotation in models of massive single stars covering a wide range of masses and metallicities. These models reproduce very well observations during the early stages of the evolution (in particular WR populations and ratio between type II and type Ib,c at different metallicities, see Meynet & Maeder 2005). Our models predict the production of fast rotating black holes. Models with large initial masses or high metallicity end their life with less angular momentum in their central remnant with respect to the break-up limit for the remnant. Many WR star models satisfy the three main criteria (black hole formation, loss of hydrogen-rich envelope and enough angular momentum to form an accretion disk around the black hole) for gamma-ray bursts (GRB) production via the collapsar model (Woosley 1993). Considering all types of WR stars as GRB progenitors, there would be too many GRBs compared to observations. If we consider only WO stars (type Ic supernovae as is the case for SN2003dh/GRB030329, see Matheson et al. 2003) as GRBs progenitors, the GRBs production rates are in much better agreement with observations. WO stars are produced only at low metallicities in the present grid of models. This prediction can be tested by future observations.

R. Hirschi; G. Meynet; A. Maeder

2005-07-14T23:59:59.000Z

378

High sensitivity double beta decay study of 116-Cd and 100-Mo with the BOREXINO Counting Test Facility (CAMEO project)  

E-Print Network [OSTI]

The unique features (super-low background and large sensitive volume) of the CTF and BOREXINO set ups are used in the CAMEO project for a high sensitivity study of 100-Mo and 116-Cd neutrinoless double beta decay. Pilot measurements with 116-Cd and Monte Carlo simulations show that the sensitivity of the CAMEO experiment (in terms of the half-life limit for neutrinoless double beta decay) is (3-5) 10^24 yr with a 1 kg source of 100-Mo (116-Cd, 82-Se, and 150-Nd) and about 10^26 yr with 65 kg of enriched 116-CdWO_4 crystals placed in the liquid scintillator of the CTF. The last value corresponds to a limit on the neutrino mass of less than 0.06 eV. Similarly with 1000 kg of 116-CdWO_4 crystals located in the BOREXINO apparatus the neutrino mass limit can be pushed down to m_nu<0.02 eV.

G. Bellini; B. Caccianiga; M. Chen; F. A. Danevich; M. G. Giammarchi; V. V. Kobychev; B. N. Kropivyansky; E. Meroni; L. Miramonti; A. S. Nikolayko; L. Oberauer; O. A. Ponkratenko; V. I. Tretyak; S. Yu. Zdesenko; Yu. G. Zdesenko

2000-07-11T23:59:59.000Z

379

Modeling the line variations from the wind-wind shock emissions of WR 30a  

E-Print Network [OSTI]

The study of Wolf-Rayet stars plays an important role in evolutionary theories of massive stars. Among these objects, ~ 20% are known to be in binary systems and can therefore be used for the mass determination of these stars. Most of these systems are not spatially resolved and spectral lines can be used to constrain the orbital parameters. However, part of the emission may originate in the interaction zone between the stellar winds, modifying the line profiles and thus challenging us to use different models to interpret them. In this work, we analyzed the HeII4686\\AA + CIV4658\\AA blended lines of WR30a (WO4+O5) assuming that part of the emission originate in the wind-wind interaction zone. In fact, this line presents a quiescent base profile, attributed to the WO wind, and a superposed excess, which varies with the orbital phase along the 4.6 day period. Under these assumptions, we were able to fit the excess spectral line profile and central velocity for all phases, except for the longest wavelengths, where a spectral line with constant velocity seems to be present. The fit parameters provide the eccentricity and inclination of the binary orbit, from which it is possible to constrain the stellar masses.

D. Falceta-Goncalves; Z. Abraham; V. Jatenco-Pereira

2007-10-02T23:59:59.000Z

380

The effect of phosphorus on the formation of tungsten dioxide: A novel morphology  

SciTech Connect (OSTI)

The industrial production of tungsten is based on the hydrogen reduction of tungsten oxides, ammonium paratungstate (APT) or ammonium tungsten oxide bronze (ATOB). Hydrogen reduction is applied when high purity tungsten is required and when the addition of other elements or compounds (dopants) is desired for modification of the properties of the metal powder. The first stage of the reduction is finished when WO{sub 2} is formed and it seems that the efficient incorporation of the additives starts mainly at this reduction step. The study reported here was undertaken to investigate the effect of phosphorus dope on the morphology of the intermediate tungsten dioxide and analyze its influence on the grain size of the final tungsten metal powder. The authors observed star shaped morphology of WO{sub 2}, a structure which has not been describe in the literature. Contrary to the well-known cauliflower shaped tungsten dioxide, these starlets are not pseudomorphic to the initial ATOB particles; they grow separately and have a great influence on the grain size of the final metal powder.

Hegedus, E.; Neugebauer, J. [Hungarian Academy of Sciences, Budapest (Hungary). Research Inst. for Technical Physics and Materials Science] [Hungarian Academy of Sciences, Budapest (Hungary). Research Inst. for Technical Physics and Materials Science

1999-02-19T23:59:59.000Z

Note: This page contains sample records for the topic "fdb fcns wo" 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

Low-Temperature Light Detectors with Neganov-Luke Amplification  

E-Print Network [OSTI]

The simultaneous measurement of phonons and scintillation light induced by incident particles in a scintillating crystal such as CaWO4 is a powerful technique for the active rejection of background induced by gamma's and beta's as well as neutrons in direct Dark Matter searches. However, less than ~1% of the energy deposited in a CaWO4 crystal is detected as light. Thus, very sensitive light detectors are needed for an efficient event-by-event background discrimination. Due to the Neganov-Luke effect, the threshold of low-temperature light detectors based on semiconducting substrates can be improved significantly by drifting the photon-induced electron-hole pairs in an applied electric field. We present measurements with low-temperature light detectors based on this amplification mechanism. The Neganov-Luke effect makes it possible to improve the signal-to-noise ratio of our light detectors by a factor of ~9 corresponding to an energy threshold of ~21 eV. We also describe a method for an absolute energy calib...

Isaila, C; Feilitzsch, F v; Gtlein, A; Kemmer, J; Lachenmaier, T; Lanfranchi, J -C; Pfister, S; Potzel, W; Roth, S; Sivers, M v; Strauss, R; Westphal, W; Wiest, F

2011-01-01T23:59:59.000Z

382

Kinetics of generation, relaxation, and accumulation of electronic excitations under two-photon interband picosecond absorption in tungstate and molibdate crystals  

SciTech Connect (OSTI)

Under two-photon 523.5 nm interband picosecond laser excitation, we measured the kinetics of induced absorption in PbWO{sub 4}, ZnWO{sub 4}, and PbMoO{sub 4} crystals with 532 to 633 nm continuous probe radiation. We obtained real-time information about the dynamics of the generation, relaxation, and accumulations of electronic excitations over a wide time range (from picoseconds to hundreds of seconds) and the 77-300 K temperature range. For the studied crystals, exponential temperature-independent growth of the induced absorption (IA) with 60 ns rise time reflects the dynamics of the generation of electronic excitation. The kinetics of the IA exponential growth with temperature-dependent 3.5-11 {mu}s time constants reflect the dynamics of energy migration between neighboring tungstate (molibdate) ions to traps for the studied crystals. The multiexponential relaxation absorption kinetics strongly depend on temperature, and the relaxation decay time of induced absorption increased from tens to hundreds of milliseconds to seconds under crystal cooling from 300 to 77 K. We found that the increase in the laser pump repetition rate (0-10 Hz) leads to the accumulation of electronic excitations. Control of the repetition rate and the number of excitations allowed us to change the relaxation time of the induced absorption by more than two orders of magnitude. Due to accumulation of excitations at 77 K, the absorption relaxation time can exceed 100 s for PbWO{sub 4} and PbMoO{sub 4} crystals. In the initially transparent crystals, two-photon interband absorption (2PA) leads to crystals opacity at the 523 and 633 nm wavelengths. (An inverse optical transmission of the crystals exceeds 50-55 at a 50-100 GW/cm{sup 2} pump intensity.) Measured at {approx}1 mW probe radiation of 532 and 633 nm wavelengths, the induced absorption values are comparable with those obtained under two-photon absorption at {approx}5 kW pump power. An optical 2PA shutter for the visible spectral range is proposed with a variable shutting time from hundreds of microseconds to tens of seconds.

Lukanin, V. I.; Karasik, A. Ya., E-mail: karasik@lst.gpi.ru [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)

2013-08-15T23:59:59.000Z

383

Tantalum-Tungsten Oxide Thermite Composite Prepared by Sol-Gel Synthesis and Spark Plasma Sintering  

SciTech Connect (OSTI)

Energetic composite powders consisting of sol-gel derived nanostructured tungsten oxide were produced with various amounts of micrometer-scale tantalum fuel metal. Such energetic composite powders were ignition tested and results show that the powders are not sensitive to friction, spark and/or impact ignition. Initial consolidation experiments, using the High Pressure Spark Plasma Sintering (HPSPS) technique, on the sol-gel derived nanostructured tungsten oxide produced samples with higher relative density than can be achieved with commercially available tungsten oxide. The sol-gel derived nanostructured tungsten oxide with immobilized tantalum fuel metal (Ta - WO{sub 3}) energetic composite was consolidated to a density of 9.17 g.cm{sup -3} or 93% relative density. In addition those parts were consolidated without significant pre-reaction of the constituents, thus the sample retained its stored chemical energy.

Cervantes, O; Kuntz, J; Gash, A; Munir, Z

2009-02-13T23:59:59.000Z

384

How We Achieved a 41% Energy Reduction  

E-Print Network [OSTI]

in this pape~. Abbott Labo~ato~ies is a wo~ldwide health ca~e company with 1984 sales in excess of $3.1 billion. Abbott employs some 34,000 people in 28 domestic and 44 inte~ational locations. ou~ ene~gy conse~vation p~og~am was sta~ted in 1973 du...~ing the A~ab oil emba~go, but the ene~gy conse~vation depa~tment was not fo~ed until 1977. This depa~tment consists of myself, 2 enginee~s, and a sec~eta~y, and we a~e the only people in the company devoting full time to ene~gy conse~vation. Each plant...

Maze, M. E.

385

Array-type NH.sub.3 sensor  

SciTech Connect (OSTI)

An array-type sensor that senses NH.sub.3 includes non-Nernstian sensing elements constructed from metal and/or metal-oxide electrodes on an O.sub.2 ion conducting substrate. In one example sensor, one electrode may be made of platinum, another electrode may be made of manganese (III) oxide (Mn.sub.2O.sub.3), and another electrode may be made of tungsten trioxide (WO.sub.3). Some sensing elements may further include an electrode made of La.sub.0.6Sr.sub.0.4Co.sub.0.2Fe.sub0.8O.sub.3 and another electrode made of LaCr.sub.0.95.Mg.sub.0.05O.sub.3.

West, David Lawrence; Montgomery, Frederick Charles; Armstrong, Timothy R; Warmack, Robert J

2013-12-31T23:59:59.000Z

386

Edge-states ferromagnetism of WS{sub 2} nanosheets  

SciTech Connect (OSTI)

The multilayer WS{sub 2} nanosheets prepared from WO{sub 3} nanowires exhibit strong ferromagnetic behavior with saturation magnetization (M{sub S}) of 0.0058?emu/g and coercive field (H{sub C}) of 92?Oe at room temperature. By decreasing the temperature down to 3?K the H{sub c} is increased up to 1115 Oe, revealing the existence of long-range magnetic ordering. Density functional theory spin-polarized calculations predict that strong ferromagnetic moments in WS{sub 2} nanosheets are attributed to the zigzag edge sulphur S and tungsten W atoms. Our findings also suggest that the WS{sub 2} nanosheets with a high density of edge spins could be used to fabricate spintronics devices, which are circuits utilizing the spin of the electron to process and store information.

Huo, Nengjie; Li, Yan; Kang, Jun; Li, Renxiong; Xia, Qinglin; Li, Jingbo, E-mail: jbli@semi.ac.cn [State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, P. O. Box 912, Beijing 100083 (China)

2014-05-19T23:59:59.000Z

387

Negative Thermal Expansion in ZrW{sub 2}O{sub 8}: Mechanisms, Rigid Unit Modes, and Neutron Total Scattering  

SciTech Connect (OSTI)

The local structure of the low-temperature ordered phase of the negative thermal expansion (NTE) material ZrW{sub 2}O{sub 8} has been investigated by reverse Monte Carlo (RMC) modeling of neutron total scattering data. We obtain, for the first time, quantitative measurements of the extent to which the WO{sub 4} and ZrO{sub 6} polyhedra move as rigid units, and we show that these values are consistent with the predictions of rigid unit mode theory. We suggest that rigid unit modes are associated with the NTE. Our results do not support a recent interpretation of x-ray-absorption fine structure spectroscopy data in terms of a larger rigid structural component involving the Zr-O-W linkage.

Tucker, Matthew G. [Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ (United Kingdom); ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX (United Kingdom); Goodwin, Andrew L.; Dove, Martin T. [Department of Earth Sciences, University of Cambridge, Downing Street, Cambridge CB2 3EQ (United Kingdom); Keen, David A. [Physics Department, Oxford University, Clarendon Laboratory, Parks Road, Oxford OX1 3PU (United Kingdom); ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX (United Kingdom); Wells, Stephen A. [Biological Physics, Bateman Physical Sciences Building, Arizona State University, Tempe, Arizona 85287-1504 (United States); Evans, John S.O. [Department of Chemistry, University Science Laboratories, South Road, Durham DH1 3LE (United Kingdom)

2005-12-16T23:59:59.000Z

388

ARRIVING AT A COMMON GROUND: JOHN REED SWANTON AND AMERICAN ANTHROPOLOGY  

E-Print Network [OSTI]

of scholarship over the many cultures originally from that region. This treasure trove SerWaininJ Wo VoXWheaVWern SeoSOeV#15; Pan\\ oI ZhoP XnGerZenW Whe IeGeraO JoYernPenWV rePoYaO policies into Oklahoma in the 1830s and 1840s, remain indispensable... MaX]e#15; 0iFhaOe +arNin#15; anG SerJei .anV eWhnoJraShiF aFFoXnW oI Northwest ethnology from the first arrival of Europeans to the present day, entitled Coming to Shore: Northwest Coast Ethnology, Traditions, and Visions. From his magisterial two...

DeSanti, Brady James

2012-08-31T23:59:59.000Z

389

Humidity-resistant ambient-temperature solid-electrolyte amperometric sensing apparatus  

DOE Patents [OSTI]

Apparatus and methods for detecting selected chemical compounds in air or other gas streams at room or ambient temperature includes a liquid-free humidity-resistant amperometric sensor comprising a sensing electrode and a counter and reference electrode separated by a solid electrolyte. The sensing electrode preferably contains a noble metal, such as Pt black. The electrolyte is water-free, non-hygroscopic, and substantially water-insoluble, and has a room temperature ionic conductivity [>=]10[sup [minus]4] (ohm-cm)[sup [minus]1], and preferably [>=]0.01 (ohm-cm)[sup [minus]1]. The conductivity may be due predominantly to Ag[sup +] ions, as in Ag[sub 2]WO[sub 4], or to F[sup [minus

Zaromb, S.

1994-06-21T23:59:59.000Z

390

Light Dark Matter in the light of CRESST-II  

SciTech Connect (OSTI)

Recently the CRESST collaboration has published the long anticipated results of their direct Dark Matter (DM) detection experiment with a CaWO4 target. The number of observed events exceeds known backgrounds at more than 4? significance, and this excess could potentially be due to DM scattering. We confront this interpretation with null results from other direct detection experiments for a number of theoretical models, and find that consistency is achieved in non-minimal models such as inelastic DM and isospin-violating DM. In both cases mild tension with constraints remain. The CRESST data can, however, not be reconciled with the null results and with the positive signals from DAMA and CoGeNT simultaneously in any of the models we study.

Kopp, Joachim; Schwetz, Thomas; Zupan, Jure

2012-03-01T23:59:59.000Z

391

Upgrading of middle distillate fractions of syncrudes from athabasca oil sands  

SciTech Connect (OSTI)

Middle distillate fractions of syncrudes from Athabasca Oil Sands were evaluated for suitability as feedstocks in the catalytic conversion to diesel fuel meeting cetane number specifications. Hydrogenation of aromatic components to napthenes under severe conditions (380 to 400/sup 0/C, 2500 psig) using sulfided CoO/MoO/sub 3/ and NiO/WO/sub 3/ over ..cap alpha.. . Al/sub 2/O/sub 3/ in a previously described catalyst testing system. Reaction products were analyzed for aromatic carbon content using C/sup 13/ NMR spectroscopy and pseudo first order rate constants and activation energies (15.0 and 14.2 kcal 1 g-mole, respectively) were determined by regression analysis. At optimum conditions 97% aromatic conversion was obtained with the Ni-W catalyst. Product diesel fuel cetane number (42) was within specifications. Co-Mo catalyst was significantly less active.

Wilson, M.F.; Kriz, J.F.

1983-03-01T23:59:59.000Z

392

Regmi Research Series ,Year 11, December 1, 1979  

E-Print Network [OSTI]

~-it ion:> inJu~.try appears to have b.,...m w:--ll Postabli.:dpd . Notwith st ,:nJinC) t h 'J .:ier.isjv~ runilc.xs o i: BcitiDh observ~. cs abou t t .<:nniqu~s Md quality, t hl;! scal e et: ~coductlon 1 s truly i'('l-'ce.ssive . In I..he wo... , "Oharanko ltlhasa" ( Mo hi: tory of Dt.l..'1!"

Regmi, Mahesh C

1979-01-01T23:59:59.000Z

393

One-photon band gap engineering of borate glass doped with ZnO for photonics applications  

SciTech Connect (OSTI)

Lithium tungsten borate glass of the composition (0.56-x)B{sub 2}O{sub 3}-0.4Li{sub 2}O-xZnO-0.04WO{sub 3} (0 {<=}x{<=} 0.1 mol. %) is prepared for photonics applications. The glass is doped with ZnO to tune the glass absorption characteristics in a wide spectrum range (200-2500 nm). Chemical bond approach, including chemical structure, electronegativity, bond ionicity, nearest-neighbor coordination, and other chemical bonding aspect, is used to analyze and to explain the obtained glass properties such as: transmittance, absorption, electronic structure parameters (bandgap, Fermi level, and Urbach exciton-phonon coupling), Wannier free excitons excitation (applying Elliott's model), and two-photon absorption coefficient as a result of replacement of B{sub 2}O{sub 3} by ZnO.

Abdel-Baki, Manal [Glass Department, National Research Centre, Dokki 12311 Giza (Egypt); Abdel-Wahab, Fathy A.; El-Diasty, Fouad [Physics Department, Faculty of Science, Ain Shams University, Abbasia, 11566 Cairo (Egypt)

2012-04-01T23:59:59.000Z

394

The air side performance of extended surface direct expansion cooling coils  

E-Print Network [OSTI]

. The tubes are actually slightly flattened. The tube is 1/4" nominal steel tubing. Fins ara also steel. Drawing is not to scale and not all fins ara shown. 0? CSS FPM C SCS FPM / Wo ~c S p ~s g Mo ISO + 0 IS I So C I IO IL loo 1 Qo 0 So X.... 01507 0. 01460 0. 01375 0 . 01254 1103. 7 1102. 2 1100. 6 1098. 8 1096. 7 1095. 5 1094. 1 1092. 8 1091. 8 TABLE 1 (CONT. ) ~Ent1sll Water per lb. vapor/lb. QT dr air dr air BTU/hr ~ BTU/hr. BTU/hr. 33. 14 32. 32 31. 43 30. 42 29. 25...

Kinney, Robert Clarke

2012-06-07T23:59:59.000Z

395

Systems and methods for detecting x-rays  

DOE Patents [OSTI]

Systems and methods for detecting x-rays are disclosed herein. One or more x-ray-sensitive scintillators can be configured from a plurality of heavy element nano-sized particles and a plastic material, such as polystyrene. As will be explained in greater detail herein, the heavy element nano-sized particles (e.g., PbWO4) can be compounded into the plastic material with at least one dopant that permits the plastic material to scintillate. X-rays interact with the heavy element nano-sized particles to produce electrons that can deposit energy in the x-ray sensitive scintillator, which in turn can produce light.

Bross, Alan D.; Mellott, Kerry L.; Pla-Dalmau, Anna

2006-05-02T23:59:59.000Z

396

Hydrocracking and hydroisomerization of long-chain alkanes and polyolefins over metal-promoted anion-modified transition metal oxides  

SciTech Connect (OSTI)

A method is described for cracking a feedstock by contacting the feedstock with a metal-promoted anion-modified metal oxide catalyst in the presence of hydrogen gas. The metal oxide of the catalyst is one or more of ZrO{sub 2}, HfO{sub 2}, TiO{sub 2} and SnO{sub 2}, and the feedstock is principally chains of at least 20 carbon atoms. The metal-promoted anion-modified metal oxide catalyst contains one or more of Pt, Ni, Pd, Rh, Ir, Ru, (Mn and Fe) or mixtures of them present between about 0.2% to about 15% by weight of the catalyst. The metal-promoted anion-modified metal oxide catalyst contains one or more of SO{sub 4}, WO{sub 3}, or mixtures of them present between about 0.5% to about 20% by weight of the catalyst.

Venkatesh, Koppampatti R.; Hu, Jianli; Tierney, John W.; Wender, Irving

1996-12-01T23:59:59.000Z

397

The effect of GnRH on induction of follicular development and ovulation in anovulatory and ovulatory mares  

E-Print Network [OSTI]

6u[ge[nwt. gs uoy ajit. goagga qou si ynq saioads uaqqo po sa[ewag pue sauew ui uo[ge[nno age[nw[gs og g[asg[ Eq pasn uaaq os [e seq u[douq. opeuo5 o iuoiuouo uewnH asn s|. I 5u[wo[[og. unsoo uaq. go [[LM suo[ge[ -nno a[d[g[nw hei]g si goezq. xa... [iu[onpau iq Eouafoigga bu[paauq panoudwf u[douqopeuob otuoluoqo uewnH 'sauew oi[oEo ui uofqe[nno bufqe[enwfqs uog antqoayga X[46[4 si 004 'uanazoH 'sauew ue[no[L[og age[nwigs og sqdwagqe snouawnu aqua oq uoigippe u[ HLIug qgce sasuoq u( uocge...

Hennington, Debra Louise

1981-01-01T23:59:59.000Z

398

The use of fishes in cages as biological monitors of the quality of water passing through a power plant  

E-Print Network [OSTI]

I I I \\ I 'I I I I I I 0 0 0 0 0 0 CC 0 Cl CCI (Wc!c() AXO O 3A1OSSIO CI (0 0 0 0 0 0 0 lO CC CO CC Cl QQI ~ WO/SOIIW Rrl(l!JOOQICOO 0 Ol O CO ICc 4 CC O 0 (O ) 3((!!lV83 W3j 0 R Cl W CI CC o I- Ch C' SO 4 IO 8 0 8...? O EU 8 () CC) CO IO '0 ( I 4 C) g (3 2 o CO (3 4 -~ G CO S) It) O (OI 4 0 (3 IO 4 p, I I 27 o a ao o o 0 0 0 0 0 0 0 0 0 a\\ I N ( WVH) ( N30AXO 03A105510 0 0 0 0 0 0 'O N 0 V 1V /SOHWN AAIAIAPOON00 0 N 000 I I I...

Hammerschmidt, Paul C

1973-01-01T23:59:59.000Z

399

The effect of methyl silicone upon feedlot performance digestibility of nutrients and prevention of bloat in beef cattle  

E-Print Network [OSTI]

&& . ~, Go5 l, m &~5 ~4, ape ~eh 4m 39y9'+ Spy ' ?y97'9 . Sy@R ' ' "-7%9 . Wp'Q40 ' 849. , ' V'F ~~""' @Su ~WO~ 41. +~4@ 3cLS~& 2$ ~Vlf'~'5~ ' c~, Xt~ g~ $~'~', 6&~+~ X~Xe yM~ Sex' ~be . ~+iWx~&, "~34 5~ x eg~' ~'&~ zedAc$pM '@M C4. @ ~ i@ p~, ~ 4W.... 4128 CACCIA'f@% 54MgpXt x9X' fd6liy, 'PPA~p ?~, ~$4+ '. . WXBNl '~Xg98 'iM@k~eC bg- ~gee~'Za~ . 3a %ha -myveh?~, k&~ %~5886 ~X' CGQtr C@gg@, ~~38'$8y. , RR6jj ~~8% gg. '~ "~A~ p@ ~4@. @ ~:wd~;~~ i@+'x4" ~ ', ~. -~ i~:, ~, "~8 ~+; - ", X@l:9R~~W 4...

Wythe, Landon Douglas

1955-01-01T23:59:59.000Z

400

Experimental Study of a Cooling Coil and the Validation of its Simulation Model for the Purpose of Commissioning  

E-Print Network [OSTI]

dry dry ) (2) ()wet wet wet mhd (3) { } 1(0.8) (0.64)111dry w a ??? (4) { } 1(0.8) (0.8)222wet w a ??? (5) Here? 0 5 10 15 20 25 0.0 0.5 1.0 1.5 2.0 2.5 Water flow rate [m/s] Exchanged total heat [kW ] 5? 7? 10? 15? 20? Inlet water temp... in the pipe [m/s], : front surface wind velocity [m/s], dryU wetU mtd mhd wv av ai? : inlet dry bulb air temperature [? C], ,abd: dry bulb air temperature at the dry/wet boundary [?C], wo : outlet water temperature [? C], ,wbd : water temperature...

Yamaguchi, H.; Miyata, M.; Oda, H.; Shioya, M.; Watanabe, T.; Niwa, H.; Yoshida, H.

2006-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "fdb fcns wo" 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

Intern experience at Dallas Power and Light Company: an internship report  

E-Print Network [OSTI]

with respect to the company's top managers. The intent of this report is to show that my internship experience with DP&L fulfilled the requirements for the Doctor of Engineering internship. The fact that these require? ments have been satisfied... of the internship report and page 20 of the enclosed technical report. PR ES ID EN T & CH IE F EX EC UT IV E H SQ H CO WpsJ CO W CJ> +?I > H ?Mc/awP3 1^ woM > H!3W?M CO aMa wuH > H S5 fiM CO ?fin WU H S 5 a O <3 H H H C/3 l...

Fischer, Roger Lewis, 1945-

2013-03-13T23:59:59.000Z

402

An analysis of the egg marketing practices of Texas producers  

E-Print Network [OSTI]

~". as ~1 Fulfill. ~sat of th Rsq'Lt. o:~a for tbs De~ . f !baster of Sa:tense . 'h?'or 3xb, foot g Agx &scltural Eoonom9 es a DIG "i'd% J J U ~ ~ ~ t ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ % ~ ~ 4 ~ ~ ~ ~ ~ ~ ~ I? TAO '($Q~Q EBC4pp&o I '. M ~ ~ ~ ~ ~ ~ ~ ~ ~ e e... to PK' oaso? i PQQooa of thc De YA?Mt of ~g ' 8" ~t'vQ . 'c- ace', Sociolo g o" Tho 'gr 'eslt'a el anQ:@chaw cal Col'. - o of' Tc . . a C". r . 'A advice:ed hola 'a tho comtzeet;oa . " this vmacrl 4, ". . ". obt oi' matitmke "'" "~wo ~7m, 'rofc;, sor...

Morgan, Quevedo Martin

1949-01-01T23:59:59.000Z

403

A study of changes in expressed attitudes in the realm of Negro-White relations of Texas A. & M. freshmen  

E-Print Network [OSTI]

'Irrcu~Ce Q t9 g o o e +v wo Nct 0 bled 5 o'0 Bio m a e & ~ R'0 Act 0 8'0 n gb oe v vm V vg e 3L' Experimental: Church A Church B Church C Church D Church E Total Experimental Total Control 49 27 7 -- 15 13 2 1 -- 10 34 6 8 1 1 - 6... not on the questionnaire given the respondents. LIBRARY A A m COLLEGE OF TEXAS HOW WOULD YOU REACT TV THE POLLOWINO: (1ndioate by entering an x 1n the proper space) I" M + P Pyj 51ii ~5 5mIN l, 2 ~ 3 ~ $ ~ 6. 7 ~ 8 ~ 9. 10, 12 ' 1$ 14. The attempt...

Ketch, Clarence Willard

1955-01-01T23:59:59.000Z

404

Further fractionation studies on unidentified growth factors in distillers dried solubles  

E-Print Network [OSTI]

J. ?ro:&th f:&c oro. 'ev. ". ~1 labor. tor. i. ;. . ucv", utt . n?te. ' to 1. &cia:. o &'J m g' a ?. , uniko'&. '1 & iel "r3, i & f ' 0 "o . . r . & & n & ural eources ~ '&ovM . ZQ1 . Iau;9, . -'3) le . c &. '3, ? ' t 1e;r3 &9rt &. oo?f & f 3 'tor 1... "txzul . . te I '. : ?oro h of calo'wo Ci. N'' '. ' " ucott ( p r) o . . - ve ' Lh t orotic . cid lro. . ;c. e' chick -" i&. . &to in the ?'re. ence of:. .d ed aethio ine. ". wha, ua1 . :l . u e ( ' ) ro- : o'tod a ?o . "ibl: rcl:it ienahit& oi o-. ot...

Rozacky, Eugene Emil

1955-01-01T23:59:59.000Z

405

Light Dark Matter in the light of CRESST-II  

DOE Public Access Gateway for Energy & Science Beta (PAGES Beta)

Recently the CRESST collaboration has published the long anticipated results of their direct Dark Matter (DM) detection experiment with a CaWO4 target. The number of observed events exceeds known backgrounds at more than 4? significance, and this excess could potentially be due to DM scattering. We confront this interpretation with null results from other direct detection experiments for a number of theoretical models, and find that consistency is achieved in non-minimal models such as inelastic DM and isospin-violating DM. In both cases mild tension with constraints remain. The CRESST data can, however, not be reconciled with the null results and with the positive signals from DAMA and CoGeNT simultaneously in any of the models we study.

Kopp, Joachim; Schwetz, Thomas; Zupan, Jure

2012-03-01T23:59:59.000Z

406

Micro structural studies of PVA doped with metal oxide nanocomposites films  

SciTech Connect (OSTI)

Nanostructured PVA polymer composites are of rapidly growing interest because of their sized-coupled properties. The present article deals with both ZnO and WO{sub 3} embedded in a polyvinyl alcohol (PVA) matrix using a solvent casting method. These films were characterized using FTIR, XRD, and SEM techniques. The FTIR spectra of the doped PVA shows shift in the bands, which can be understood on the basis of intra/inter molecular hydrogen bonding with the adjacent OH group of PVA. The phase homogeneity and morphology of the polymer composites have been analyzed using scanning electron microscope (SEM). The crystal structure and crystallinity of polymer nanocomposites were studied by X-ray diffraction technique (XRD). Thus due to the interaction of dopant and complex formation, the structural repositioning takes place and crystallinity of the nanocomposites decreases.

Kumar, N. B. Rithin [Dept. of Physics, Srinivas School of Engineering, Mangalore-575025, Karnataka (India); Crasta, Vincent, E-mail: vcrasta@yahoo.com; Viju, F. [Dept. of Physics, St. Joseph Engineering College, Vamanjoor, Mangalore-575028, Karnataka (India); Praveen, B. M. [Dept. of Chemistry, Srinivas School of Engineering, Mangalore-575025, Karnataka (India); Shreeprakash, B. [Dept. of Mechanical Engineering, Srinivas School of Engineering, Mangalore-575025, Karnataka (India)

2014-04-24T23:59:59.000Z

407

Study of optical properties of Erbium doped Tellurite glass-polymer composite  

SciTech Connect (OSTI)

Chalcogenide glasses have wide applications in optical device technology. But it has some disadvantages like thermal instability. Among them Tellurite glasses exhibits high thermal Stability. Doping of rare earth elements into the Tellurite glasses improve its optical properties. To improve its mechanical properties composites of this Tellurite glasses with polymer are prepared. Bulk samples of Er{sub 2}O{sub 3} doped TeO{sub 2}?WO{sub 3}?La{sub 2}O{sub 3} Tellurite glasses are prepared from high purity oxide mixtures, melting in an alumina crucible in air atmosphere. Composites of this Tellurite glasses with polymer are prepared by powder mixing method and the thin films of these composites are prepared using polymer press. Variations in band gap of these composites are studied from the UV/Vis/NIR absorption.

Sushama, D., E-mail: sushasukumar@gmail.com [Research Awardee, LAMP, Dept. of Physics, Nit, Calicut, India and Dept. of Physics, M.S.M. College, Kayamkulam, Kerala (India)

2014-10-15T23:59:59.000Z

408

Impact of geometry on light collection efficiency of scintillation detectors for cryogenic rare event searches  

E-Print Network [OSTI]

Simulations of photon propagation in scintillation detectors were performed with the aim to find the optimal scintillator geometry, surface treatment, and shape of external reflector in order to achieve maximum light collection efficiency for detector configurations that avoid direct optical coupling, a situation that is commonly found in cryogenic scintillating bolometers in experimental searches for double beta decay and dark matter. To evaluate the light collection efficiency of various geometrical configurations we used the ZEMAX ray-tracing software. It was found that scintillators in the shape of a triangular prism with an external mirror shaped as truncated cone gives the highest light collection efficiency. The results of the simulations were confirmed by carrying out measurements of the light collection efficiencies of CaWO4 crystal scintillators. A comparison of simulated and measured values of light output shows good agreement

F. A. Danevich; V. V. Kobychev; R. V. Kobychev; H. Kraus; V. B. Mikhailik; V. M. Mokina; I. M. Solsky

2014-04-30T23:59:59.000Z

409

Development and characterization of PdCr temperature-compensaated wire resistance strain gage  

SciTech Connect (OSTI)

A temperature-compensated resistance static strain gage with potential to be used to 600 C was recently developed. Gages were fabricated from specially developed palladium-13 w/o chromium (Pd-13Cr) wire and platinum (Pt) compensator. When bonded to high temperature Hastelloy X, the apparent strain from room temperature to 600 C was within 400 microstrain for gages with no preheat treatment and within 3500 microstrain for gages with 16 hours prestabilization at 640 C. The apparent strain versus temperature relationship of stabilized PdCr gages were repeatable with the reproducibility within 100 microstrain during three thermal cycles to 600 C and an 11 hours soak at 600 C. The gage fabrication, construction and installation is described. Also, the coating system used for this compensated resistance strain gage is explained. The electrical properties of the strain sensing element and main characteristics of the compensated gage including apparent strain, drift and reproducibility are discussed.

Lei, J.F.

1989-10-01T23:59:59.000Z

410

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

SciTech Connect (OSTI)

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

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

2010-03-15T23:59:59.000Z

411

A study of tungsten nanopowder formation by self-propagating high-temperature synthesis  

SciTech Connect (OSTI)

Molten salt-assisted self-propagating high-temperature synthesis of nanocrystalline W powder was studied experimentally. The technique involves the reduction of WO{sub 3} in the presence of sodium chloride using three different reducing agents: magnesium (Mg), sodium azide (NaN{sub 3}), and sodium borohydride (NaBH{sub 4}). The effects of the mole fraction of sodium chloride on temperature distributions, combustion parameters, phase compositions, and morphology of the final products were determined. The sodium chloride-assisted method reported here has been found to be effective for lowering combustion temperature and producing uniform and spherical W nanopowders of average particle size around 20-200, 100-200, and 20-50 nm. The effect of combustion temperature on tungsten particle size is discussed, and a sketch describing the chemistry of combustion is proposed.

Nersisyan, H.H.; Won, C.W. [Rapidly Solidified Materials Research Center, Chungnam National University, 220 Gung-Dong, Yuseong, Daejeon 305-764 (Korea, Republic of); Lee, J.H. [Korea Atomic Energy Research Institute (KAERI), 150 Duckjin-Dong, Yuseong, Daejeon 305-353 (Korea, Republic of)

2005-08-01T23:59:59.000Z

412

Physical properties of erbium implanted tungsten oxide filmsdeposited by reactive dual magnetron sputtering  

SciTech Connect (OSTI)

Amorphous and partially crystalline WO3 thin films wereprepared by reactive dual magnetron sputtering and successively implantedby erbium ions with a fluence in the range from 7.7 x 1014 to 5 x 1015ions/cm2. The electrical and optical properties were studied as afunction of the film deposition parameters and the ion fluence. Ionimplantation caused a strong decrease of the resistivity, a moderatedecrease of the index of refraction and a moderate increase of theextinction coefficient in the visible and near infrared, while theoptical band gap remained almost unchanged. These effects could belargely ascribed to ion-induced oxygen deficiency. When annealed in air,the already low resistivities of the implanted samples decreased furtherup to 70oC, whereas oxidation, and hence a strong increase of theresistivity, was observed at higher annealing temperatures.

Mohamed, Sodky H.; Anders, Andre

2006-11-08T23:59:59.000Z

413

Synthesis of full-density nanocrystalline tungsten carbide by reduction of tungstic oxide at room temperature  

SciTech Connect (OSTI)

Among the hard alloys, WC alloys find wide industrial applications as tips for cutting tools and wear-resistant parts. Their intrinsic resistance to oxidation and corrosion at high temperatures also makes them desirable as a protective coating for devices at elevated temperatures. In the industrial scale of production, WC is prepared by a direct union of the elements at a temperature of 3,273 to 3,473 K. Accordingly, the high cost of preparation is a disadvantage of this process. Here, the authors report a novel technique for preparing a large amount of WC powder using a simple method. This process is based on mechanical solid-state reduction (MSSR) followed y solid-state reaction (SSR) during room-temperature ball milling (a high energy ball mill, Fritsch P6, was used at a rotation speed of 4.2 s{sup {minus}1}) of a mixture of WO{sub 3}, Mg, and C powders.

El-Eskandarany, M.S.; Omori, M.; Ishikuro, M.; Konno, T.J.; Takada, K.; Sumiyama, K.; Hirai, T.; Suzuki, K. [Tohoku Univ., Sendai (Japan)

1996-12-01T23:59:59.000Z

414

Deactivation and poisoning of fuel cell catalysts  

SciTech Connect (OSTI)

The deactivation and poisoning phenomena reviewed are: the poisoning of anode (fuel electrode) catalyst by carbon monoxide and hydrogen sulfide; the deactivation of the cathode (air electrode) catalyst by sintering; and the deactivation of the cathode by corrosion of the support. The anode catalyst is Pt supported on a conductive, high area carbon black, usually at a loading of 10 w/o. This catalyst is tolerant to some level of carbon monoxide or hydrogen sulfide or both in combination, the level depending on temperature and pressure. Carbon monoxide poisoning has been studied extensively, including detailed adsorption studies at various temperatures and pressures. Predictive models have been developed that effectively predict anode tolerance to carbon monoxide. Much less is known about hydrogen sulfide poisoning. Typical tolerance levels are 2% CO, and 10 ppM H/sub 2/S. The cathode catalyst is typically Pt supported on a graphitic carbon black, usually a furnace black heat-treated to 2700/sup 0/C. The Pt loading is typically 10 w/o, and the dispersion (or percent exposed) as-prepared is typically 30%. The loss of dispersion in use depends on the operational parameters, most especially the cathode potential history, i.e. higher potentials cause more rapid decrease in dispersion. The mechanism of loss of dispersion is not well known. The graphitic carbon support corrodes at a finite rate that is also potential dependent. Support corrosion causes thickening of the eletrolyte film between the gas pores and the catalyst particles, which in turn causes increased diffusional resistance and performance loss. In addition, support corrosion may also cause loss of Pt into the separator. Support corrosion appears to be the life limiting factor for phosphoric acid fuel cells.

Ross, P.N. Jr.

1985-06-01T23:59:59.000Z

415

Production of hydrogen in non oxygen-evolving systems: co-produced hydrogen as a bonus in the photodegradation of organic pollutants and hydrogen sulfide  

SciTech Connect (OSTI)

This report was prepared as part of the documentation of Annex 10 (Photoproduction of Hydrogen) of the IEA Hydrogen Agreement. Subtask A of this Annex concerned photo-electrochemical hydrogen production, with an emphasis on direct water splitting. However, studies of non oxygen-evolving systems were also included in view of their interesting potential for combined hydrogen production and waste degradation. Annex 10 was operative from 1 March 1995 until 1 October 1998. One of the collaborative projects involved scientists from the Universities of Geneva and Bern, and the Federal Institute of Technology in Laussane, Switzerland. A device consisting of a photoelectrochemical cell (PEC) with a WO{sub 3} photoanode connected in series with a so-called Grazel cell (a dye sensitized liquid junction photovoltaic cell) was developed and studied in this project. Part of these studies concerned the combination of hydrogen production with degradation of organic pollutants, as described in Chapter 3 of this report. For completeness, a review of the state of the art of organic waste treatment is included in Chapter 2. Most of the work at the University of Geneva, under the supervision of Prof. J. Augustynski, was focused on the development and testing of efficient WO{sub 3} photoanodes for the photoelectrochemical degradation of organic waste solutions. Two types of WO{sub 3} anodes were developed: non transparent bulk photoanodes and non-particle-based transparent film photoanodes. Both types were tested for degradation and proved to be very efficient in dilute solutions. For instance, a solar-to-chemical energy conversion efficiency of 9% was obtained by operating the device in a 0.01M solution of methanol (as compared to about 4% obtained for direct water splitting with the same device). These organic compounds are oxidized to CO{sub 2} by the photocurrent produced by the photoanode. The advantages of this procedure over conventional electrolytic degradation are that much (an order of magnitude) less energy is required and that sunlight can be used directly. In the case of photoproduction of hydrogen, as compared to water splitting, feeding the anodic compartment of the PEC with an organic pollutant, instead of the usual supporting electrolyte, will bring about a substantial increase of the photocurrent at a given illumination. Thus, the replacement of the photo-oxidation of water by the photodegradation of organic waste will be accompanied by a gain in solar-to-chemical conversion efficiency and hence by a decrease in the cost of the photoproduced hydrogen. Taking into account the benefits and possible revenues obtainable by the waste degradation, this would seem to be a promising approach to the photoproduction of hydrogen. Hydrogen sulfide (H{sub 2}S) is another waste effluent requiring extensive treatment, especially in petroleum refineries. The so-called Claus process is normally used to convert the H{sub 2}S to elemental sulfur. A sulfur recovery process developed at the Florida Solar Energy Center is described briefly in Chapter 4 by Dr. C. Linkous as a typical example of the photoproduction of hydrogen in a non oxygen-evolving system. The encouraging results obtained in these investigations of photoelectrochemical hydrogen production combined with organic waste degradation, have prompted a decision to continue the work under the new IEA Hydrogen Agreement Annex 14, Photoelectrolytic Hydrogen Production.

Sartoretti, C. Jorand; Ulmann, M.; Augustynski, J. (Electrochemistry Laboratory, Department of Chemistry, University of Geneva (CH)); Linkous, C.A. (Florida Solar Energy Center, University of Central Florida (US))

2000-01-01T23:59:59.000Z

416

A tunable electrochromic fabry-perot filter for adaptive optics applications.  

SciTech Connect (OSTI)

The potential for electrochromic (EC) materials to be incorporated into a Fabry-Perot (FP) filter to allow modest amounts of tuning was evaluated by both experimental methods and modeling. A combination of chemical vapor deposition (CVD), physical vapor deposition (PVD), and electrochemical methods was used to produce an ECFP film stack consisting of an EC WO{sub 3}/Ta{sub 2}O{sub 5}/NiO{sub x}H{sub y} film stack (with indium-tin-oxide electrodes) sandwiched between two Si{sub 3}N{sub 4}/SiO{sub 2} dielectric reflector stacks. A process to produce a NiO{sub x}H{sub y} charge storage layer that freed the EC stack from dependence on atmospheric humidity and allowed construction of this complex EC-FP stack was developed. The refractive index (n) and extinction coefficient (k) for each layer in the EC-FP film stack was measured between 300 and 1700 nm. A prototype EC-FP filter was produced that had a transmission at 500 nm of 36%, and a FWHM of 10 nm. A general modeling approach that takes into account the desired pass band location, pass band width, required transmission and EC optical constants in order to estimate the maximum tuning from an EC-FP filter was developed. Modeling shows that minor thickness changes in the prototype stack developed in this project should yield a filter with a transmission at 600 nm of 33% and a FWHM of 9.6 nm, which could be tuned to 598 nm with a FWHM of 12.1 nm and a transmission of 16%. Additional modeling shows that if the EC WO{sub 3} absorption centers were optimized, then a shift from 600 nm to 598 nm could be made with a FWHM of 11.3 nm and a transmission of 20%. If (at 600 nm) the FWHM is decreased to 1 nm and transmission maintained at a reasonable level (e.g. 30%), only fractions of a nm of tuning would be possible with the film stack considered in this study. These tradeoffs may improve at other wavelengths or with EC materials different than those considered here. Finally, based on our limited investigation and material set, the severe absorption associated with the refractive index change suggests that incorporating EC materials into phase correcting spatial light modulators (SLMS) would allow for only negligible phase correction before transmission losses became too severe. However, we would like to emphasize that other EC materials may allow sufficient phase correction with limited absorption, which could make this approach attractive.

Blaich, Jonathan David; Kammler, Daniel R.; Ambrosini, Andrea; Sweatt, William C.; Verley, Jason C.; Heller, Edwin J.; Yelton, William Graham

2006-10-01T23:59:59.000Z

417

Distributed Fiber Optic Gas Sensing for Harsh Environment  

SciTech Connect (OSTI)

This report summarizes work to develop a novel distributed fiber-optic micro-sensor that is capable of detecting common fossil fuel gases in harsh environments. During the 32-month research and development (R&D) program, GE Global Research successfully synthesized sensing materials using two techniques: sol-gel based fiber surface coating and magnetron sputtering based fiber micro-sensor integration. Palladium nanocrystalline embedded silica matrix material (nc-Pd/Silica), nanocrystalline palladium oxides (nc-PdO{sub x}) and palladium alloy (nc-PdAuN{sub 1}), and nanocrystalline tungsten (nc-WO{sub x}) sensing materials were identified to have high sensitivity and selectivity to hydrogen; while the palladium doped and un-doped nanocrystalline tin oxide (nc-PdSnO{sub 2} and nc-SnO{sub 2}) materials were verified to have high sensitivity and selectivity to carbon monoxide. The fiber micro-sensor comprises an apodized long-period grating in a single-mode fiber, and the fiber grating cladding surface was functionalized by above sensing materials with a typical thickness ranging from a few tens of nanometers to a few hundred nanometers. GE found that the morphologies of such sensing nanomaterials are either nanoparticle film or nanoporous film with a typical size distribution from 5-10 nanometers. nc-PdO{sub x} and alloy sensing materials were found to be highly sensitive to hydrogen gas within the temperature range from ambient to 150 C, while nc-Pd/Silica and nc-WO{sub x} sensing materials were found to be suitable to be operated from 150 C to 500 C for hydrogen gas detection. The palladium doped and un-doped nc-SnO{sub 2} materials also demonstrated sensitivity to carbon monoxide gas at approximately 500 C. The prototyped fiber gas sensing system developed in this R&D program is based on wavelength-division-multiplexing technology in which each fiber sensor is identified according to its transmission spectra features within the guiding mode and cladding modes. The interaction between the sensing material and fossil fuel gas results in a refractive index change and optical absorption in the sensing layer. This induces mode coupling strength and boundary conditions changes and thereby shifts the central wavelengths of the guiding mode and cladding modes propagation. GE's experiments demonstrated that such an interaction between the fossil fuel gas and sensing material not only shifts the central wavelengths of the guide mode and cladding modes propagation, but also alters their power loss characteristics. The integrated fiber gas sensing system includes multiple fiber gas sensors, fiber Bragg grating-based temperature sensors, fiber optical interrogator, and signal processing software.

Juntao Wu

2008-03-14T23:59:59.000Z

418

Assessment of Possible Cycle Lengths for Fully Encapsulated Microstructure fueled light water reactor Concepts  

SciTech Connect (OSTI)

The use of TRISO-particle-based dispersion fuel within SiC matrix and cladding materials has the potential to allow the design of extremely safe LWRs with failure-proof fuel. This paper examines the feasibility of LWR-like cycle length for such fuel with the imposed constraint of strictly retaining the original geometry of the fuel pins and assemblies. The motivation for retaining the original geometry is to provide the ability to incorporate the fuel as-is into existing LWRs while retaining their thermalhydraulic characteristics. Another mandatory constraint is use of low enriched uranium (at or below 20 w/o). The feasibility of using this fuel is assessed by looking at two factors: cycle lengths and fuel material failure rates. Other considerations (e.g., safety parameters such as reactivity coefficients, feedback, etc.) were not considered at this stage of the study. The study includes the examination of increases in the TRISO kernel sizes without changing the thickness of any of the coating layers. In addition, cases where the buffer layer thickness is allowed to vary are also considered. The study shows that a nave use of UO2 (even up to 20 w/o enrichment) results in cycle lengths too short to be practical for existing LWR designs and operational demands. Increasing fissile inventory within the fuel compacts shows that acceptable cycle lengths can be achieved. The increase of fissile inventory can be accomplished through multiple means, including higher particle packing fraction, higher enrichment, larger fuel kernel sizes, and the use of higher density fuels (that contain a higher number of U atoms per unit volume). In this study, starting with the recognized highest packing fraction practically achievable (44%), combinations of the other means have been evaluated. The models demonstrate cycle lengths comparable to those of ordinary LWRs. As expected, TRISO particles with extremely large kernels are shown to fail under all considered scenarios. In contrast, the designs that do not depart too drastically from those of the nominal NGNP HTR fuel TRISO particles are shown to perform satisfactorily and display a high rates of survival under all considered scenarios.

R. Sonat Sen; Michael A. Pope; Abderrafi M. Ougouag; Kemal O. Pasamehmetoglu

2013-02-01T23:59:59.000Z

419

Superior catalysts for selective catalytic reduction of nitric oxide. Annual technical report, September 30, 1993--September 29, 1994  

SciTech Connect (OSTI)

A delaminated Fe{sub 2}O{sub 3}-pillared clay catalyst was prepared for the selective catalytic reduction (SCR) of NO by NH{sub 3} at above 300{degrees}C. The delaminated pillard clay was characterized by ICP-AES (Inductively Coupled Plasma-Atomic Emission Spectroscopy) chemical analysis, XRD (X-ray diffraction) structure and line broadening analyses, micropore size probing, and Moessbauer analysis. These analyses showed that the catalyst contained fragmented Fe{sub 2}O{sub 3}-pillared clay forming {open_quotes}house-of-cards{close_quotes} structure with dispersed Fe{sub 2}O{sub 3} particles approximately 170 {angstrom} in size. The SCR activity of the delaminated pillard clay was higher than the commercial-type V{sub 2}O{sub 5} + WO{sub 3}/TiO{sub 2} catalyst, and also higher than the undelaminated pillard clay and supported Fe{sub 2}O{sub 3} catalysts, under conditions with SO{sub 2}. Infrared measurements of adsorbed NH{sub 3} showed strong Bronsted acidity which was caused possibly by interactions between Fe{sub 2}O{sub 3} and clay.

Chen, J.P.; Hausladen, M.C.; Yang, R.T.

1995-03-01T23:59:59.000Z

420

Superior catalysts for selective catalytic reduction of nitric oxide. Quarterly technical progress report, 1 April--30 June 1994  

SciTech Connect (OSTI)

In the last Quarterly Technical Progress Report the authors reported the synthesis and (partial characterization) and SCR (Selective Catalytic Reduction of NO) activity for a delaminated Fe{sub 2}O{sub 3}-pillared clay (Fe{sub 2}O{sub 3}-PILC). The SCR activity for this PILC was substantially higher than that of the commercial-type V{sub 2}O{sub 5} + WO{sub 3}/TiO{sub 2} catalyst. During the past quarter, the authors first completed the characterization of the delaminated Fe{sub 2}O{sub 3}-PILC catalyst. Both physical characterization (micropore probing by adsorption and Moessbauer spectroscopy) and chemical characterization (by IR spectroscopy) were performed. Since the synthesis of this PILC sample was undertaken under a specific set of conditions and it is known that the PILC properties depend strongly on the synthesis conditions, they then proceeded to examine in a systematic manner the dependence of the catalytic properties of the PILC on its synthesis conditions. Four parameters in the synthesis were studied: Fe precursors, pH of the pillaring solution, concentration of the pillaring solution, and the starting clay. Finally, the effect of the Cr{sub 2}O{sub 3} promoter on the SCR activity of the pillar clay was studied. Results are reported.

Chen, J.P.; Li, W.B.; Hausladen, M.C.; Kikkinides, E.S.; Yang, R.T.

1994-09-01T23:59:59.000Z

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421

Sunlight-Driven Hydrogen Formation by Membrane-Supported Photoelectrochemical Water Splitting  

SciTech Connect (OSTI)

This report describes the significant advances in the development of the polymer-supported photoelectrochemical water-splitting system that was proposed under DOE grant number DE-FG02-05ER15754. We developed Si microwire-array photoelectrodes, demonstrated control over the material and light-absorption properties of the microwire-array photoelectrodes, developed inexpensive processes for synthesizing the arrays, and doped the arrays p-type for use as photocathodes. We also developed techniques for depositing metal-nanoparticle catalysts of the hydrogen-evolution reaction (HER) on the wire arrays, investigated the stability and catalytic performance of the nanoparticles, and demonstrated that Ni-Mo alloys are promising earth-abundant catalysts of the HER. We also developed methods that allow reuse of the single-crystalline Si substrates used for microwire growth and methods of embedding the microwire photocathodes in plastic to enable large-scale processing and deployment of the technology. Furthermore we developed techniques for controlling the structure of WO3 films, and demonstrated that structural control can improve the quantum yield of photoanodes. Thus, by the conclusion of this project, we demonstrated significant advances in the development of all components of a sunlight-driven membrane-supported photoelectrochemical water-splitting system. This final report provides descriptions of some of the scientific accomplishments that were achieved under the support of this project and also provides references to the peer-reviewed publications that resulted from this effort.

Lewis, Nathan S. [California Institute of Technology] [California Institute of Technology

2014-03-26T23:59:59.000Z

422

Fabrication of nanostructure by physical vapor deposition with glancing angle deposition technique and its applications  

SciTech Connect (OSTI)

A nanostructural thin film is one of the highly exploiting research areas particularly in applications in sensor, photocatalytic, and solar-cell technologies. In the past two decades, the integration of glancing-angle deposition (GLAD) technique to physical vapor deposition (PVD) process has gained significant attention for well-controlled multidimensional nanomorphologies because of fast, simple, cost-effective, and mass-production capability. The performance and functional properties of the coated thin films generally depend upon their nanostructural compositions, i.e., large aspect ratio, controllable porosity, and shape. Such structural platforms make the fabricated thin films very practical for several realistic applications. We therefore present morphological and nanostructural properties of various deposited materials, which included metals, i.e., silver (Ag), and oxide compounds, i.e., tungsten oxide (WO{sub 3}), titanium dioxide (TiO{sub 2}), and indium tin oxide (ITO). Different PVD techniques based on DC magnetron sputtering and electron-beam evaporation, both with the integrated GLAD component, were discussed. We further explore engineered nanostructures which enable controls of optical, electrical, and mechanical properties. These improvements led to several practical applications in surface-enhanced Raman, smart windows, gas sensors, self-cleaning materials and transparent conductive oxides (TCO)

Horprathum, M., E-mail: mati.horprathum@nectec.or.th; Eiamchai, P., E-mail: mati.horprathum@nectec.or.th; Patthanasettakul, V.; Limwichean, S.; Nuntawong, N.; Chindaudom, P. [Optical Thin-Film Laboratory National Electronics and Computer Technology Center, Pathumthani, 12120 (Thailand); Kaewkhao, J. [Center of Excellence in Glass Technology and Materials Science (CEGM), Nakhon Pathom Rajabhat University, Nakhon Pathom 73000 (Thailand); Chananonnawathorn, C. [Department of Physics, Faculty of Science and Technology, Thammasat University, Pathumthani, 12121 (Thailand)

2014-09-25T23:59:59.000Z

423

Rendezvous Points-Based Scalable Content Discovery with Load Balancing  

E-Print Network [OSTI]

'&S§UT@!¢"§$#%'&V"§I©1'©1XW@QGDGF!!¢YGT`D(`"§I©©VW2&§$#2aT2'& #1aBbBc¢'§IdS"§I©©R&¢§F!#%'&egfih2!3a©@pb¢§F!Q2a§I©GH§q¥¨8)(234{57¥¨8)G9aBT2!3¢&aD@Q@sTg3(23P '4|YCB$S©GBIDGF!Y@AT2a¢"'§E#'&¢(U§Id¨"§©©eV)2Q@"YcB3(@3'4 (2WGT@X"§©©"§I©@P '©1t"§I©G¢QG4R&¨5"F!!©x9~YGBEta¢¢Q@woQG&a't§F!§"sBEx"§©© BE©CTX"§©©&¢§IF!#%'&iYCB$rT@''&4R!©@xYGx¢'r§Id

Steenkiste, Peter

424

Nepali Aawaz Volume 1, Issue 17, 6 August 2006  

E-Print Network [OSTI]

Psf] 5 . lzIffljb u0f]zjxfb'/ /fO{ k|d'v cltly /xg' ePsf] pQm sfo{qmddf xsdf /x]sf slj, ;flxTosf/, uLtsf/, kqsf/ Pj+ ljwfyL{x?sf] pkl:ylt /x]sf] lyof] . xs g]kfnL snf dlGb/sf cWoIf Ps/fh /fO{n] g]kfnL efiffsf] pb\\ej, rLgsf] e"lddf g]kfnL ;dfh... lgdf{0fdf g]kfnL efiffsf] dxTjsf af/]df rrf{ ub}{ efg'eQmsf] af/]df ;d]t k|i6 kf/] kl5 z'? ePsf] pQm hGdhoGtL ;df/f]xdf efg'eQmf/f lnlvt s[lt /fdfo0fdf dfNofk{0f ul/Psf] lyof] . sfo{qmddf xsdf cWoog/t g]kfnL ljwfyL{x?n] /fdfo0f kf7 Pj+ efg...

Shrestha, Kashish Das

425

IMPROVING THE USER EXPERIENCE OF THE LAWRENCE TRANSIT SYSTEM: A FOCUS ON MAP USABILITY AND ROUTE PLANNING  

E-Print Network [OSTI]

No rth wo od Ln Co lor ad o S t W 3rd StB irc h L n Ca lifo rn ia St W 2nd Ter W 3rd St N Mi nn es ota St Flo rid a S t Quail Cr ee k D r Na ism ith D r Flo rid a S t Mi nn es ota St W 7th St Illi no is St Ala ba ma St Ma ine St Mi ss ou ri St... r d Ct Oxford Ct W 13th St Jana Ct Eisenhower Pl Yo rks hir e D rB o n d Pl Sundown Ct Riverview Rd Saddlehorn Dr Ca ny on Dr G r a n d v i e w T e r Cla yto n C t Ca lifo rni a S t W 3rd Ter Mt H op e C tW 2nd St Hu rric ane Ln (P ) W 22 nd...

Berkman, Eric

2009-07-21T23:59:59.000Z

426

Paramagnetic resonance at low fields  

E-Print Network [OSTI]

$ 15?$ 62Mo1iM1t 1J"o 5M1$kwi15Mk 1J$ o5kMiW 2K$w ?2w$ 6L6W$o) rM6w$io5Mk 1J$ 15?$ 62Mo1iM1 h$L2MS .)A o$62MSo S5S M21 i''w$65ihWL 5?m 'w2K$ 1J5o '$w-2w?iM6$ iMS ?iS$ 1J$ i?'W5-5$w S5--56"W1 12 T2w^ T51J) 0J$ ?2W$M25S $?? -???????? ??h...?'$w$o Tio 1J$ J5kJ$o1 6"ww$M1 TJ56J 62"WS h$ "o$S T51J2"1 "MS"$ J$i15Mk) ?12wik$ hi11$w5$o T$w$ "o$S io 1J$ ??S ?w T h e ESTERLINE-ANGUS C o ., In c ., I n d i a n a p o l i s , I n d . U.S. A 5 5A5 ?m??$ $9?? LS??$J?$ 6??A $9?????$J?$ .9A' ???5...

Becker, Stewart

1954-01-01T23:59:59.000Z

427

Ultra-stable Molecule-Surface Architectures at Metal Oxides: Structure, Bonding, and Electron-transfer Processes  

SciTech Connect (OSTI)

Research funded by this project focused on the development of improved strategies for functionalization of metal oxides to enhance charge?transfer processes relevant to solar energy conversion. Initial studies included Fe2O3, WO3, TiO2, SnO2, and ZnO as model oxide systems; these systems were chosen due to differences in metal oxidation state and chemical bonding types in these oxides. Later studies focused largely on SnO2 and ZnO, as these materials show particularly promising surface chemistry, have high electron mobility, and can be readily grown in both spherical nanoparticles and as elongated nanorods. New molecules were synthesized that allowed the direct chemical assembly of novel nanoparticle ?dyadic? structures in which two different oxide materials are chemically joined, leading to an interface that enhances the separation of of charge upon illumination. We demonstrated that such junctions enhance photocatalytic efficiency using model organic compounds. A separate effort focused on novel approaches to linking dye molecules to SnO2 and ZnO as a way to enhance solar conversion efficiency. A novel type of surface binding through

Hamers, Robert John

2013-12-07T23:59:59.000Z

428

Preparation of amorphous electrochromic tungsten oxide and molybdenum oxide by plasma enhanced chemical vapor deposition  

SciTech Connect (OSTI)

Preliminary experiments have been performed to probe the feasibility of using plasma enhanced chemical vapor deposition (PE--CVD) to prepare electrochromic thin films of tungsten oxide and molybdenum oxide by plasma reaction of WF/sub 6/, W(CO)/sub 6/, and Mo(CO)/sub 6/ with oxygen. Thin films produced in a 300 W, electrodeless, radio-frequency (rf), capacitive discharge were found to be electrochromic when tested with either liquid or solid electrolytes. Optical spectroscopy was performed on two electrochromic coatings after Li/sup +/ ion insertion from a propylene carbonate liquid electrolyte. Broad absorption peaks at --900 nm for WO/sub 3/ and 600 nm for MoO/sub 3/ were observed. Optical results for PE--CVD MoO/sub 3/ films differ from those reported for evaporated MoO/sub 3/ films which have an absorption peak at --800 nm. The shorter wavelength absorption in the PE--CVD MoO/sub 3/ films offers the potential for fabricating electrochromic devices with higher contrast ratios and less color change. Optical emission spectroscopy, Auger, and x-ray diffraction analyses indicate these thin film deposits to be predominantly amorphous tungsten and molybdenum oxides.

Tracy, C.E.; Benson, D.K.

1986-09-01T23:59:59.000Z

429

Uranyl fluoride luminescence in acidic aqueous solutions  

SciTech Connect (OSTI)

Luminescence emission spectra and decay rates are reported for uranyl species in acidic aqueous solutions containing HF or added NaF. The longest luminescence lifetime, 0.269 {+-} 0.006 ms, was observed from uranyl in 1 M HF + 1 M HClO{sub 4} at 296 K and decreased with increasing temperature. Based on a luminescence dynamics model that assumes equilibrium among electronically excited uranyl fluoride species and free fluoride ion, this long lived uranyl luminescence in aqueous solution is attributed primarily to UO{sub 2}F{sub 2}. Studies on the effect of added LiNO{sub 3} or Na{sub 2}WO{sub 4}{center_dot}2H{sub 2}O showed relatively weak quenching of uranyl fluoride luminescence which suggests that high sensitivity determination of the UF{sub 6} content of WF{sub 6} gas should be feasible via uranyl luminescence analysis of hydrolyzed gas samples of impure WF{sub 6}.

Beitz, J.V.; Williams, C.W. [Argonne National Lab., IL (United States). Chemistry Div.

1996-08-01T23:59:59.000Z

430

Information media used by cotton farmers in producing cotton in a ten-county area of North Central Texas  

E-Print Network [OSTI]

~~/%M~(~ ~ . , gP'Z'1$'+19'f. . W~jF ' ' ~Q. , "f Q9&'1+~ , gp @P '~ 8p ~~AC/. 9g"55!, QP y'4~3'6~ @1+ $4~ Q4~ f~'. t$, QM~gg8Z Z$;, '3'TOKgQg ppj7 8&, ", ~ Otp gC Q2~ Slp89p&Q, ~Q C$ pRH@p%Q~~ 1 ': ' I I l '$ '~CP1&p 4' . ~", I t 'C Fi... ' . 4~$AJ"1~9"~3'i7~ . . KK W:~1ivjg' ~ ~gg:yg grq-'gg~g gg +'~ ~~ y? ~g gg~' ~0@ @gal g~ QlfCL@CQ @AQ, ~'ALVJQ9 ~, QQS g1'~gi~i+1 5$ a J+S $+QgfQq ~~7$+Vl:g ( 'Vx'pi~i~('f8 &M~ ~':~'g8CM 4O ~M~ ~ 4i 3s K~-;JAy A"w&i?8POV 88%. p R &~lC 4'W~ Wo RQL...

Anwarul Karim, A. M

2012-06-07T23:59:59.000Z

431

Wireless sensor systems for sense/decide/act/communicate.  

SciTech Connect (OSTI)

After 9/11, the United States (U.S.) was suddenly pushed into challenging situations they could no longer ignore as simple spectators. The War on Terrorism (WoT) was suddenly ignited and no one knows when this war will end. While the government is exploring many existing and potential technologies, the area of wireless Sensor networks (WSN) has emerged as a foundation for establish future national security. Unlike other technologies, WSN could provide virtual presence capabilities needed for precision awareness and response in military, intelligence, and homeland security applications. The Advance Concept Group (ACG) vision of Sense/Decide/Act/Communicate (SDAC) sensor system is an instantiation of the WSN concept that takes a 'systems of systems' view. Each sensing nodes will exhibit the ability to: Sense the environment around them, Decide as a collective what the situation of their environment is, Act in an intelligent and coordinated manner in response to this situational determination, and Communicate their actions amongst each other and to a human command. This LDRD report provides a review of the research and development done to bring the SDAC vision closer to reality.

Berry, Nina M.; Cushner, Adam; Baker, James A.; Davis, Jesse Zehring; Stark, Douglas P.; Ko, Teresa H.; Kyker, Ronald D.; Stinnett, Regan White; Pate, Ronald C.; Van Dyke, Colin; Kyckelhahn, Brian

2003-12-01T23:59:59.000Z

432

Coyote-prey interactions on an intensively managed south Texas ranch  

E-Print Network [OSTI]

)dwes paZqStaM asaqq po1Jad SUTydwes qoea uyqqtg sqeos qqS))' Jo gnaws J 0 Jo he/ Ug sg )'nsa J Su/8 elq Su): p1'oAe oq pasn 8 aM Suj gqS'1 aM & s 11U, ' Qe os aqq go ZqSTaM fiJp aqua fiq payTdyq~w seM waqt poop uancS e uo spy( Ucd go quaoJad atU. '(bfi6...Tgtquapy aJaM geosysqcc(od OO( go yeqcq 8 pue ued wo 9c x Sg e U( paqnqyJqsgp lyuafia pue paxyw a JaM sguaquoo geog '(fg6 [ uasueH pue uosuqof 'f96 t xoG pue peJweq)) awe Jg quyod uyd-pL e Sursn paugwexa 8 JaM sqeos go squaZuo) 'adfiq fiaJd 8) Suts 8 go...

Drew, Gary Scott

1988-01-01T23:59:59.000Z

433

Performance analysis of a Pb-Bi cooled fast reactor - PEACER-300 in proliferation resistance and transmutation aspects  

SciTech Connect (OSTI)

A design study of 850 MWt lead-bismuth cooled reactor cores is performed to maximize the transmutation of both TRU nuclides in homogeneous fuel pin and long-lived fission products in separate target pins. Transmutation of minor actinide under a closed recycling was analyzed with assumption that decontamination factors in pyro-reprocessing plant data be reasonably high. The optimized design parameter were chosen as of a flat core shape with 50 cm in active core height and 5 m in core diameter, loaded with 17 x 17 arrayed fuel assemblies. A pitch to diameter ratio is 2.2, operating coolant temperature range is 300 deg. C-400 deg. C, and core consists of 3 different enrichment zones with one year cycle length. In safety aspects, this core design satisfied large negative temperature feedback coefficients, and sufficient shutdown margin by primary shutdown system with 20 B{sub 4}C control assemblies and by secondary shutdown system with 40 w/o enriched 12 B{sub 4}C control assemblies. Performance of designed core showed a high transmutation capability with support ratio of 2.085 and less TEX values than other reactor types. Better proliferation resistance could be achieved than other reactor types. (authors)

Lim, J. Y.; Kim, M. H. [Dept. of Nuclear Engineering, Kyung Hee Univ., Yongin-shi, Gyeonggi-do, 449-701 (Korea, Republic of)

2006-07-01T23:59:59.000Z

434

Efficient ternary sources of working-body vapors for thermionic converters  

SciTech Connect (OSTI)

The results of experiments to determine the energy characteristics of a cylindrical thermionic converter (TC) are presented. The TC investigated had ternary working-body vapor sources based on multicomponent cesium systems with either bismuth oxide, vanadium oxide, or tungsten oxide additions. Sorption characteristics of the systems were first determined, and then the ternary source was operated as part of the TC. The kinetics of the interaction of cesium vapor with the oxides was studied gravimetrically at various collector temperatures. The cesium TC electrical power output was increased 40 to 60% with a Cs{sub 12}Bi{sub 2}O{sub 3} ternary source in the arc mode. A Cs{sub 3}V{sub 2}O{sub 5} system increased TC output power from 20 to 40%, depending on emitter temperature. For the two Cs{sub x}WO{sub 3} sources examined, power increased almost 50%. The ternary sources examined also extended the working temperature range of the TC. 18 refs., 5 figs.

Kalandarishvili, A.G.; Kashiya, V.G.

1994-11-01T23:59:59.000Z

435

Study of electrodeposited nickel-molybdenum, nickel-tungsten, cobalt-molybdenum, and cobalt-tungsten as hydrogen electrodes in alkaline water electrolysis  

SciTech Connect (OSTI)

Electrodeposited nickel-molybdenum, nickel-tungsten, cobalt-molybdenum, and cobalt-tungsten were characterized for the hydrogen evolution reaction (HER) in the electrolysis of 30 w/o KOH alkaline water at 25 C. The rate-determining step (rds) of the HER was suggested based on the Tafel slope of polarization and the capacitance of electrode-solution interface determined by ac impedance measurement. The HER on the nickel- and cobalt-based codeposits was enhanced significantly compared with that o the electrolytic nickel and cobalt with comparable deposit loadings. The decrease in the HER overpotential was more pronounced on the molybdenum-containing codeposits, particularly on cobalt-molybdenum which also showed a high stability. The enhancement of the HER was attributed to both the synergetic composition and the increased active surface of the codeposits. The real electrocatalytic activity of te electrodes and the effect of their and the increased active surface of the codeposits. The real electrocatalytic activity of the electrodes and the effect of their surface increase were distinguished quantitatively. The linear relations between HER overpotential and surface roughness factor of the electrodes on a Y-log(X) plot were obtained experimentally and interpreted based on the Tafel law.

Fan, C.; Piron, D.L.; Sleb, A.; Paradis, P. (Ecole Polytechnique de Montreal, Quebec (Canada). Dept. de Metallurgie et de Genie des Materiaux)

1994-02-01T23:59:59.000Z

436

Irradiation Experiment Conceptual Design Parameters for NBSR Fuel Conversion  

SciTech Connect (OSTI)

It has been proposed to convert the National Institute of Standards and Technology (NIST) research reactor, known as the NBSR, from high-enriched uranium (HEU) fuel to low-enriched uranium (LEU) fuel. The motivation to convert the NBSR to LEU fuel is to reduce the risk of proliferation of special nuclear material. This report is a compilation of relevant information from recent studies related to the proposed conversion using a metal alloy of LEU with 10 w/o molybdenum. The objective is to inform the design of the mini-plate and full-size plate irradiation experiments that are being planned. This report provides relevant dimensions of the fuel elements, and the following parameters at steady state: average and maximum fission rate density and fission density, fuel temperature distribution for the plate with maximum local temperature, and two-dimensional heat flux profiles of fuel plates with high power densities. . The latter profiles are given for plates in both the inner and outer core zones and for cores with both fresh and depleted shim arms (reactivity control devices). In addition, a summary of the methodology to obtain these results is presented.

Brown N. R.; Brown,N.R.; Baek,J.S; Hanson, A.L.; Cuadra,A.; Cheng,L.Y.; Diamond, D.J.

2013-03-31T23:59:59.000Z

437

Final Project Report  

SciTech Connect (OSTI)

In this entire project period from 2005-2014, we have made significant progress in developing novel nanostructures of metal oxides (MOs) for solar hydrogen generation based on photoelectrochemical (PEC). Materials investigated are focused on 1D and 0D MO nanostructures of TiO2, WO3, ZnO, and Fe2O3 in conjunction with quantum dot (QD) sensitization and chemical doping (N or H) to alter their electronic band structures for both visible light absorption and for facilitating interfacial charge transport. In addition, we have used plasmonic metal nanostructures to enhance the PEC performance by improving light absorption of QDs via enhanced scattering of the plamonic metal. Most importantly, we have discovered a multipronged strategy for improving PEC performance: using plasmonic metal nanostructure to enhance light absorption, QDs to improve charge transfer, and chemical doping to increase charge transport in metal oxides for PEC. The combination is critical for overall high efficiency of PEC. This strategy is developed and demonstrated for the first time to our best knowledge.

Zhang, Jin [University of California Santa Cruz; Zhao, Yiping [University of Georgia at Athens

2014-12-05T23:59:59.000Z

438

Direct encapsulation of water-soluble drug into silica microcapsules for sustained release applications  

SciTech Connect (OSTI)

Direct encapsulation of water-soluble drug into silica microcapsules was facilely achieved by a sol-gel process of tetraethoxysilane (TEOS) in W/O emulsion with hydrochloric acid (HCl) aqueous solution containing Tween 80 and drug as well as cyclohexane solution containing Span 80. Two water-soluble drugs of gentamicin sulphate (GS) and salbutamol sulphate (SS) were chosen as model drugs. The characterization of drug encapsulated silica microcapsules by scanning electronic microscopy (SEM), FTIR, thermogravimetry (TG) and N{sub 2} adsorption-desorption analyses indicated that drug was successfully entrapped into silica microcapsules. The as-prepared silica microcapsules were uniform spherical particles with hollow structure, good dispersion and a size of 5-10 {mu}m, and had a specific surface area of about 306 m{sup 2}/g. UV-vis and thermogravimetry (TG) analyses were performed to determine the amount of drug encapsulated in the microcapsules. The BJH pore size distribution (PSD) of silica microcapsules before and after removing drug was examined. In vitro release behavior of drug in simulated body fluid (SBF) revealed that such system exhibited excellent sustained release properties.

Wang Jiexin; Wang Zhihui [Key Lab for Nanomaterials, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029 (China); Chen Jianfeng [Key Lab for Nanomaterials, Ministry of Education, Beijing University of Chemical Technology, Beijing 100029 (China); Research Center of the Ministry of Education for High Gravity Engineering and Technology, Beijing University of Chemical Technology, Beijing 100029 (China)], E-mail: chenjf@mail.buct.edu.cn; Yun, Jimmy [Nanomaterials Technology Pte. Ltd., 28 Ayer Rajah Crescent 03-03, Singapore 139959 (Singapore)

2008-12-01T23:59:59.000Z

439

A Warm Near-Infrared High-Resolution Spectrograph with Very High Throughput (WINERED)  

E-Print Network [OSTI]

WINERED is a newly built high-efficiency (throughput$ > 25-30\\%$) and high-resolution spectrograph customized for short NIR bands at 0.9-1.35 ${\\rm \\mu}$m. WINERED is equipped with ambient temperature optics and a cryogenic camera using a 1.7 ${\\rm \\mu}$m cut-off HgCdTe HAWAII-2RG array detector. WINERED has two grating modes: one with a conventional reflective echelle grating (R$\\sim$28,300), which covers 0.9-1.35 $\\mu$m simultaneously, the other with ZnSe or ZnS immersion grating (R$\\sim$100,000). We have completed the development of WINERED except for the immersion grating, and started engineering and science observations at the Nasmyth platform of the 1.3 m Araki Telescope at Koyama Astronomical Observatory of Kyoto-Sangyo University in Japan. We confirmed that the spectral resolution ($R\\sim$ 28,300) and the throughput ($>$ 40\\% w/o telescope/atmosphere/array QE) meet our specifications. We measured ambient thermal backgrounds (e.g., 0.06 ${\\rm [e^{-}/sec/pixel]}$ at 287 K), which are roughly consistent ...

Kondo, Sohei; Kobayashi, Naoto; Yasui, Chikako; Mito, Hiroyuki; Fukue, Kei; Nakanishi, Kenshi; Kawanishi, Takafumi; Nakaoka, Tetsuya; Otsubo, Shogo; Kinoshita, Masaomi; Kitano, Ayaka; Hamano, Satoshi; Mizumoto, Misaki; Yamamoto, Ryo; Izumi, Natsuko; Matsunaga, Noriyuki; Kawakita, Hideyo

2015-01-01T23:59:59.000Z

440

Synthesis of Metal Oxide Nanomaterials for Chemical Sensors by Molecular Beam Epitaxy  

SciTech Connect (OSTI)

Since the industrial revolution, detection and monitoring of toxic matter, chemical wastes, and air pollutants has become an important environmental issue. Thus, it leads to the development of chemical sensors for various environmental applications. The recent disastrous oil spills over the near-surface of ocean due to the offshore drilling emphasize the use of chemical sensors for prevention and monitoring of the processes that might lead to these mishaps.1, 2 Chemical sensors operated on a simple principle that the sensing platform undergoes a detectable change when exposed to the target substance to be sensed. Among all the types of chemical sensors, solid state gas sensors have attracted a great deal of attention due to their advantages such as high sensitivity, greater selectivity, portability, high stability and low cost.3, 4 Especially, semiconducting metal oxides such as SnO2, TiO2, and WO3 have been widely used as the active sensing platforms in solid state gas sensors.5 For the enhanced properties of solid state gas sensors, finding new sensing materials or development of existing materials will be needed. Thus, nanostructured materials such as nanotubes,6-8 nanowires,9-11 nanorods,12-15 nanobelts,16, 17 and nano-scale thin films18-23 have been synthesized and studied for chemical sensing applications.

Nandasiri, Manjula I.; Kuchibhatla, Satyanarayana V N T; Thevuthasan, Suntharampillai

2013-12-01T23:59:59.000Z

Note: This page contains sample records for the topic "fdb fcns wo" 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

Blue diode-pumped solid-state-laser based on ytterbium doped laser crystals operating on the resonance zero-phonon transition  

DOE Patents [OSTI]

The invention provides an efficient, compact means of generating blue laser light at a wavelength near .about.493+/-3 nm, based on the use of a laser diode-pumped Yb-doped laser crystal emitting on its zero phonon line (ZPL) resonance transition at a wavelength near .about.986+/-6 nm, whose fundamental infrared output radiation is harmonically doubled into the blue spectral region. The invention is applied to the excitation of biofluorescent dyes (in the .about.490-496 nm spectral region) utilized in flow cytometry, immunoassay, DNA sequencing, and other biofluorescence instruments. The preferred host crystals have strong ZPL fluorecence (laser) transitions lying in the spectral range from .about.980 to .about.992 nm (so that when frequency-doubled, they produce output radiation in the spectral range from 490 to 496 nm). Alternate preferred Yb doped tungstate crystals, such as Yb:KY(WO.sub.4).sub.2, may be configured to lase on the resonant ZPL transition near 981 nm (in lieu of the normal 1025 nm transition). The laser light is then doubled in the blue at 490.5 nm.

Krupke, William F. (Pleasanton, CA); Payne, Stephen A. (Castro Valley, CA); Marshall, Christopher D. (Livermore, CA)

2001-01-01T23:59:59.000Z

442

TREKisM Issue 56  

E-Print Network [OSTI]

'?~-~ / \\ ADMIRAL 1{JE'lR ALN10ST OUT Of HOT tJll{ 1tVD (9tl~- 'PRo8J..E:M5/VO-rHINq Bur FkOB~ /"'cfY/5. jP6CI(/HflT HftT )sN), ~J"/ GOINq 10 LJOR.I< 61HeR" \\, 13 Crossword BY Lynn Mostafa ACROSS CLUES 2. Kruge 27. Pon Farr 3. Chekov's "Wessel" 29. Beauty IIke...OuR 6Cl Ii5) Bur 1iMr Hfff 15r/r qOltVq 10 (JOfwo S(01i~J)ItSN0 r. w'm lht4fd1' "~",sl~ _~I- 4...

1988-01-01T23:59:59.000Z

443

Syracuse Univesity Test Report On Uptake Factor Resulting From A Dropped Storage Container - Phase II  

SciTech Connect (OSTI)

Under certain circumstances, powder from an accidently dropped container can become airborne and inhaled by people nearby such as those who are moving the containers. The inhaled fine particles can deposit on respiratory tracts and lungs, causing asthma, lung cancer, and other acute respiratory illnesses and chronic symptoms. The objective of this study was to develop a standard procedure to measure the airborne concentrations of different size particles within the vicinity of a dropped container where a significant portion of the contained powder is ejected. Tungsten oxide (WO{sub 3}) was selected in this study to represent relatively heavy powders (7.16 g/cm3 specific gravity for WO{sub 3}). A typical can with the outer dimensions of 4.25 diameter and 4.875 tall was used as the container. The powder was dropped in two different configurations: 1) contained within a can covered by a lid that has a 0.25 diameter hole, and 2) contained within a can without a lid. The packing volume of the powder was 51.4 in3 (842.7 cm{sup 3}) and the target mass was 1936 g. The tests were carried out in a full-scale stainless steel environmental chamber with an interior volume of 852 ft3 (24.1 m3). The chamber system includes an internal recirculation loop with a rectangular air diffuser and 10 variable frequency drive fans to provide a typical room air recirculation flow pattern. Two air filters were installed in the chamber air supply duct and return duct to achieve the required low background particle concentration. The initial chamber air conditions were set at 70F ( 5F) and 50% ( 10%) RH. A supporting frame and releasing device were designed and built to trigger consistently the dropping of the can. The particle sampling inlet was placed 5 ft above the floor and 6 inches laterally away from the cans falling path. Concentrations of particles between 0.5 ?m and 20 ?m were recorded in units of mass and number of particles per unit volume. The data acquisition rate was once every 2 seconds during the first 2 hours. A test procedure was developed and verified. A total of thirty two drop tests were performed, eight in Phase I and twenty four in Phase II, covering variations in dropping height (8 ft or 4 ft from the floor), room air movement (0.25-0.30 m/s or 0.10-0.15 m/s near the ceiling), landing scenario (on a flat plate or a block), and lid condition ( lid hole or no lid). There were ten tests with flat plate and lid hole, ten tests with flat plate no lid and twelve tests with block no lid.

Gao, Zhi; Zhang, Jianshun S.

2012-01-01T23:59:59.000Z

444

Superior catalysts for selective catalytic reduction of nitric oxide. Quarterly technical progress report, 1 January 1994--31 March 1994  

SciTech Connect (OSTI)

During the past quarter, progress has been made in four tasks as summarized below: Task 1: A delaminated Fe{sub 2}O{sub 3} pillared clay was synthesized and carefully characterized. The chemical composition was measured by ICP atomic emission spectrometry. The structural changes in the clay as well as the iron oxide particle sizes were characterized by X-ray diffraction techniques. Task 2: The Selective Catalytic Reduction (SCR, i.e., NO reduction with NH{sub 3}) activities of the delaminated pillared clay were tested and compared with four other most active SCR catalysts: a commercial V{sub 2}O{sub 5} + WO{sub 3}/TiO{sub 2} catalyst, a Fe{sub 2}O{sub 3}-pillared clay, and two supported Fe{sub 2}O{sub 3} catalysts (on Al{sub 2}O{sub 3} and TiO{sub 2}). The delaminated Fe{sub 2}O{sub 3} pillared clay exhibited the highest SCR activities. Catalyst stability test showed that the delaminated sample was also stable. Task 3: To further increase the SCR activity of the delaminated pillared clay, Cr{sub 2}O{sub 3} was doped as a promoter by incipient wetness. Task 4: Deactivation effects of SO{sub 2} and H{sub 2}O on the SCR activities of the delaminated Fe{sub 2}O{sub 3} pillared clay were studied, and compared with other SCR catalysts. The delaminated clay catalyst showed the least deactivation.

Chen, J.P.; Cheng, L.S.; Hausladen, M.C.; Kikkinides, E.S.; Yang, R.T.

1994-05-01T23:59:59.000Z

445

USING RECENT ADVANCES IN 2D SEISMIC TECHNOLOGY AND SURFACE GEOCHEMISTRY TO ECONOMICALLY REDEVELOP A SHALLOW SHELF CARBONATE RESERVOIR: VERNON FIELD, ISABELLA COUNTY, MI.  

SciTech Connect (OSTI)

The geochemical sampling team collected additional 148 samples at Vernon Field along 5 new traverses. Most of the locations were sampled for three types of analyses: microbial, iodine and enzyme leach; no results from the second batch of samples were available in time for this report. In addition to the sampling, a study was begun on the feasibility of collecting and analyzing hydrocarbon gases (C1-C8) directly. Although several companies offer these services, the cost ($200-300/sample w/o sampling fee) is high, on par with the cost of a 3D seismic survey, and may not include the raw data. However direct sampling of reservoir gases collecting in the soil appear to offer the best approach and should be included in this study. It would probably work well at Vernon Field. It may be possible to lower costs considerably; initial estimates of $20/sample for GCMS (Gas Chromatography--mass spectrometry) analysis are attractive and might induce to Michigan producers to include soil surveys in their routine field work-ups. A complete set of digital data was assembled for Vernon Field and nearby locations. The set consists of well locations, formation top picks, lithologies and scanned images of driller's reports and scout tickets. Well logs are still being located. The annual meeting for the Class Revisit work group is tentatively scheduled for the week of March 1-7 in Tampa, Fl. By that time all of the geochemical data will be available and final decisions regarding drilling can be made.

James R. Wood; T.J. Bornhorst; S.D. Chittichk; William B. Harrison; W. Quinlan

2001-01-01T23:59:59.000Z

446

Urea-Functionalized M4L6 Cage Receptors: Self-Assembly, Dynamics, and Anion Recognition in Aqueous Solutions  

SciTech Connect (OSTI)

We present an extensive study of a novel class of de novo designed tetrahedral M{sub 4}L{sub 6} (M = Ni, Zn) cage receptors, wherein internal decoration of the cage cavities with urea anion-binding groups, via functionalization of the organic components L, led to selective encapsulation of tetrahedral oxoanions EO{sub 4}{sup -} (E = S, Se, Cr, Mo, W, n = 2; E = P, n = 3) from aqueous solutions, based on shape, size, and charge recognition. External functionalization with tBu groups led to enhanced solubility of the cages in aqueous methanol solutions, thereby allowing for their thorough characterization by multinuclear ({sup 1}H, {sup 13}C, {sup 77}Se) and diffusion NMR spectroscopies. Additional experimental characterization by electrospray ionization mass spectrometry, UV-vis spectroscopy, and single-crystal X-ray diffraction, as well as theoretical calculations, led to a detailed understanding of the cage structures, self-assembly, and anion encapsulation. We found that the cage self-assembly is templated by EO{sub 4}{sup -} oxoanions (n {ge} 2), and upon removal of the templating anion the tetrahedral M{sub 4}L{sub 6} cages rearrange into different coordination assemblies. The exchange selectivity among EO{sub 4}{sup -} oxoanions has been investigated with {sup 77}Se NMR spectroscopy using {sup 77}SeO{sub 4}{sup 2-} as an anionic probe, which found the following selectivity trend: PO{sub 4}{sup 3-} CrO{sub 4}{sup 2-} > SO{sub 4}{sup 2-} > SeO{sub 4}{sup 2-} > MoO{sub 4}{sup 2-} > WO{sub 4}{sup 2-}. In addition to the complementarity and flexibility of the cage receptor, a combination of factors have been found to contribute to the observed anion selectivity, including the anions charge, size, hydration, basicity, and hydrogen-bond acceptor abilities.

Custelcean, Radu [ORNL; Bonnesen, Peter V [ORNL; Duncan, Nathan C [ORNL; Van Berkel, Gary J [ORNL; Hay, Benjamin [ORNL

2012-01-01T23:59:59.000Z

447

ASSESSMENT OF POSSIBLE CYCLE LENGTHS FOR FULLY-CERAMIC MICRO-ENCAPSULATED FUEL-BASED LIGHT WATER REACTOR CONCEPTS  

SciTech Connect (OSTI)

The use of TRISO-particle-based dispersion fuel within SiC matrix and cladding materials has the potential to allow the design of extremely safe LWRs with failure-proof fuel. This paper examines the feasibility of LWR-like cycle length for such a low enriched uranium fuel with the imposed constraint of strictly retaining the original geometry of the fuel pins and assemblies. The motivation for retaining the original geometry is to provide the ability to incorporate the fuel 'as-is' into existing LWRs while retaining their thermal-hydraulic characteristics. The feasibility of using this fuel is assessed by looking at cycle lengths and fuel failure rates. Other considerations (e.g., safety parameters, etc.) were not considered at this stage of the study. The study includes the examination of different TRISO kernel diameters without changing the coating layer thicknesses. The study shows that a naive use of UO{sub 2} results in cycle lengths too short to be practical for existing LWR designs and operational demands. Increasing fissile inventory within the fuel compacts shows that acceptable cycle lengths can be achieved. In this study, starting with the recognized highest packing fraction practically achievable (44%), higher enrichment, larger fuel kernel sizes, and the use of higher density fuels have been evaluated. The models demonstrate cycle lengths comparable to those of ordinary LWRs. As expected, TRISO particles with extremely large kernels are shown to fail under all considered scenarios. In contrast, the designs that do not depart too drastically from those of the nominal NGNP HTR fuel TRISO particles are shown to perform satisfactorily and display a high rates of survival under all considered scenarios. Finally, it is recognized that relaxing the geometry constraint will result in satisfactory cycle lengths even using UO{sub 2}-loaded TRISO particles-based fuel with enrichment at or below 20 w/o.

R. Sonat Sen; Michael A. Pope; Abderrafi M. Ougouag; Kemal Pasamehmetoglu; Francesco Venneri

2012-04-01T23:59:59.000Z

448

PMo or PW heteropoly acids supported on MCM-41 silica nanoparticles: Characterisation and FT-IR study of the adsorption of 2-butanol  

SciTech Connect (OSTI)

Mesoporous silica, prepared in basic conditions, has been loaded (20% weight) with 12-molybdophosphoric (PMo) or 12-tungstophosphoric (PW) acid and calcined at different temperatures ranging between 250 and 550 deg. C. The samples have been characterised by N{sub 2} adsorption-desorption at -196 deg. C, transmission electron microscopy (TEM), powder X-ray diffraction (PXRD), UV-visible diffuse reflectance, Raman spectroscopy and temperature programmed reduction (TPR). The acidity and catalytic activity have been, respectively, examined by monitoring the adsorption of pyridine and 2-butanol by FT-IR spectroscopy. The results indicate that PW and PMo acids are highly dispersed on mesoporous silica MCM-41 spherical nanoparticles. While PMo retains its Keggin structure up to 550 deg. C, PW decomposes at this temperature into crystalline WO{sub 3} and phosphorous oxides. In both cases, the morphology, hexagonal symmetry and long-range order observed for the support are preserved with calcination up to 450 deg. C. The Broensted-type acid sites found in all samples, whose surface concentration decreases as the calcination temperature increases, are responsible for the selective formation of cis-butene detected upon adsorption of 2-butanol. The sample containing PW calcined at 450 deg. C also shows selectivity to methyl ethyl ketone. - Graphical abstract: Samples based in MCM-41 nanoparticles loaded with tungstophosphoric and molybdophosphoric acids have been synthesised. The uncalcined solids and that derived upon their calcination in the temperature range 250-550 deg. C have been characterised and evaluated in the decomposition of 2-butanol monitored by FT-IR spectroscopy.

Carriazo, Daniel [GIR-QUESCAT, Dpto. de Quimica Inorganica, Universidad de Salamanca, 37008-Salamanca (Spain); Domingo, Concepcion [Instituto de Estructura de la Materia, C.S.I.C., Serrano, 123, 28006-Madrid (Spain); Martin, Cristina [GIR-QUESCAT, Dpto. de Quimica Inorganica, Universidad de Salamanca, 37008-Salamanca (Spain); Rives, Vicente [GIR-QUESCAT, Dpto. de Quimica Inorganica, Universidad de Salamanca, 37008-Salamanca (Spain)], E-mail: vrives@usal.es

2008-08-15T23:59:59.000Z

449

Development of metal-coated ceramic anodes for molten carbonate fuel cells. Final report  

SciTech Connect (OSTI)

This report documents the developmental efforts on metal coating of various ceramic substrates (LiAlO{sub 2}, SrTiO{sub 3}, and LiFeO{sub 2}) and the critical issues associated with fabricating anodes using metal-coated LiAlO{sub 2} substrates. Electroless Ni and Cu coating technology was developed to achieve complete metal coverage on LiAlO{sub 2} powder substrates. Metal coated SrTiO{sub 3} powders were fabricated into anodes by a process identical to that reported in the GE literature. Microstructural examination revealed that the grains of the ceramic had fused together, with the metal having dewetted from the surface of the ceramic. Alternate substrates that might allow for better wetting of the metal on the ceramic such as LiFeO{sub 2} and Li{sub 2}MnO{sub 3} were identified. Cu/Ni-coated (50:50 mol ratio, 50 w/o metal loading) LiFeO{sub 2} anodes were optimized to meet the MCFC anode specifications. Metal-coated gamma-LiAlO{sub 2} substrates were also developed. By using suitable chemical surface modification methods, the gamma-UAlO{sub 2} substrate surface may be modified to allow a stable metal coated anode to be fabricated. Creep testing of the metal coated ceramic anodes were conducted at IGT. It was determined that the predominant creep mechanism is due to particle rearrangement. The anode porosity, and mean pore size had significant effect on the creep of the anode. Lower porosity and pore size consistent with performance criteria are desired to reduce creep. Lower metal loading with uniformity of coverage will result in lower creep behavior of the anode. Of the two substrates evaluated, LiFeO{sub 2} in general exhibited lower creep which was attributed to superior metal adhesion.

Khandkar, A.C.; Elangovan, S.; Marianowski, L.G.

1990-03-01T23:59:59.000Z

450

Development of metal-coated ceramic anodes for molten carbonate fuel cells  

SciTech Connect (OSTI)

This report documents the developmental efforts on metal coating of various ceramic substrates (LiAlO{sub 2}, SrTiO{sub 3}, and LiFeO{sub 2}) and the critical issues associated with fabricating anodes using metal-coated LiAlO{sub 2} substrates. Electroless Ni and Cu coating technology was developed to achieve complete metal coverage on LiAlO{sub 2} powder substrates. Metal coated SrTiO{sub 3} powders were fabricated into anodes by a process identical to that reported in the GE literature. Microstructural examination revealed that the grains of the ceramic had fused together, with the metal having dewetted from the surface of the ceramic. Alternate substrates that might allow for better wetting of the metal on the ceramic such as LiFeO{sub 2} and Li{sub 2}MnO{sub 3} were identified. Cu/Ni-coated (50:50 mol ratio, 50 w/o metal loading) LiFeO{sub 2} anodes were optimized to meet the MCFC anode specifications. Metal-coated gamma-LiAlO{sub 2} substrates were also developed. By using suitable chemical surface modification methods, the gamma-UAlO{sub 2} substrate surface may be modified to allow a stable metal coated anode to be fabricated. Creep testing of the metal coated ceramic anodes were conducted at IGT. It was determined that the predominant creep mechanism is due to particle rearrangement. The anode porosity, and mean pore size had significant effect on the creep of the anode. Lower porosity and pore size consistent with performance criteria are desired to reduce creep. Lower metal loading with uniformity of coverage will result in lower creep behavior of the anode. Of the two substrates evaluated, LiFeO{sub 2} in general exhibited lower creep which was attributed to superior metal adhesion.

Khandkar, A.C.; Elangovan, S.; Marianowski, L.G.

1990-03-01T23:59:59.000Z

451

Buffering the aqueous phase pH in water-in-CO{sub 2} microemulsions  

SciTech Connect (OSTI)

Water-in-oil (w/o) microemulsions have been exploited for use in a wide range of applications, including chemical and enzymatic reactions, protein and metal extraction, and the production of nanoparticles. Microemulsions are attractive systems for studying such applications because they have the ability to function as a universal solvent medium by solubilizing high concentrations of both polar and apolar molecules within their dispersed aqueous and continuous oil phases, respectively. The addition of organic and inorganic buffers to nanometer size water-in-CO{sub 2} microemulsion droplets stabilized by ammonium perfluoropolyether (PFPE-NH{sub 4}) results in an increase in pH from 3 to values of 5--7. The effects of temperature, pressure, buffer type, buffer concentration, ionic strength, and CO{sub 2} solubility on the pH inside water-in-CO{sub 2} microemulsions and on biphasic water-CO{sub 2} systems were measured by the hydrophilic indicator 4-nitrophenyl-2-sulfonate and were predicted accurately with thermodynamic models. In both systems, modest buffer loadings result in a steep pH jump from 2.5 pH units. Further increases in pH require large amounts of base to overcome buffering due to the carbonic acid-bicarbonate equilibrium. A pH approaching neutrality was obtained in w/c microemulsions with approximately 1.5 mol kg{sup {minus}1} NaOH. At high buffer loadings, the effects of temperature and pressure on pH values are negligible.

Holmes, J.D.; Ziegler, K.J.; Audriani, M.; Lee, C.T. Jr.; Bhargava, P.A.; Johnston, K.P. [Univ. of Texas, Austin, TX (United States). Dept. of Chemical Engineering] [Univ. of Texas, Austin, TX (United States). Dept. of Chemical Engineering; Steytler, D.C. [Univ. of East Anglia, Norwich (United Kingdom). School of Chemical Sciences] [Univ. of East Anglia, Norwich (United Kingdom). School of Chemical Sciences

1999-07-08T23:59:59.000Z

452

Generation of hydrogen peroxide in a shorted fuel cell  

SciTech Connect (OSTI)

Hydrogen peroxide is a {open_quotes}green{close_quotes} chemical with a well-assured future. As such, significant growth in demand is predicted for this material. To meet this growth, new technologies of manufacture are being contemplated to compete with the established Anthraquinone process. Some of these new methods seek the niche market of on-site generation of hydrogen peroxide. One good example of this is Dow`s caustic/peroxide generation scheme for the bleaching of paper pulp. Others rely on externally-supplied electrical power in an electrochemical reactor scheme, where peroxide may be generated additionally in neutral or acidic solution. It has long been realized that the chemical potential of the reactants themselves can be used in a controlled manner in an electrolytic cell. This is the basis of fuel cells (to generate electrical power) and has been extended to the synthesis of useful chemical species, either using solid polymer electrolytes or active oxygen transporting membranes. Use has also been made of the inherent chemical potential in H{sub 2}/O{sub 2} reactions to produce hydrogen peroxide. This reactor utilized a liquid phase cathode with dissolved air or oxygen to produce small concentrations of peroxide in a fixed volume. In fact, most schemes for the direct, electrochemical production of peroxide from hydrogen and oxygen yield low, millimolar peroxide concentrations. This paper describes the development of a scalable, segmented-flow, shorted fuel cell for the generation of greater than 1 w/o hydrogen peroxide. Three areas are of major importance in the development of a continuous, peroxide-forming reactor: the reactor design, catalyst choice and application, and the operating parameters for the reactor. The cathode catalyst is probably the single most important part. Operating parameters include such basics as temperature, pressure, gas flow rate, and liquid flow rate. Each of these topics will be discussed.

Webb, S.P.; McIntyre, J.A. [Dow Chemical Company, Midland, MI (United States)

1996-12-31T23:59:59.000Z

453

Selective catalytic reduction of nitrogen oxides by ammonia over Fe{sup 3+}-exchanged TiO{sub 2}-pillared clay catalysts  

SciTech Connect (OSTI)

Fe-exchanged TiO{sub 2}-pillared clay (PILC) catalysts were prepared and used for selective catalytic reduction (SCR) of NO{sub x} by ammonia. They were also characterized for surface area, pore size distribution, and by XRD, H{sub 2}-TPR, and FT-IR methods. The Fe-TiO{sub 2}-PILC catalysts showed high activities in the reduction of NO{sub x} by NH{sub 3} in the presence of excess oxygen. SO{sub 2} further increased the catalytic activities at above 350 C, whereas H{sub 2}O decreased the activity slightly. The catalysts were about twice as active as commercial-type V{sub 2}O{sub 5}-WO{sub 3}/TiO{sub 2} catalyst in the presence of H{sub 2}O and SO{sub 2}. Moreover, compared to the commercial catalyst, the Fe-TiO{sub 2}-PILC catalysts had higher N{sub 2}/N{sub 2}O product selectivities (e.g., 0--1% vs 9% N{sub 2}O at 400 C) and substantially lower activities (by 74--88%) for SO{sub 2} oxidation to SO{sub 3} under the same reaction conditions. The activity was further increased to over three times that of the vanadia-based catalyst when Ce was added. The high activity and low N{sub 2}O selectivity for the Fe-TiO{sub 2}-PILC catalysts were attributed to their low activity in the oxidation of ammonia, as compared with vanadia catalysts. XRD patterns of Fe-TiO{sub 2}-PILC were similar to those of TiO{sub 2}-PILC, showing no peaks due to iron oxide, even when the iron content reached 20.1%. The TPR results indicated that iron in the Fe-TiO{sub 2}-PILC catalysts with lower iron contents existed in the form of isolated Fe{sup 3+} ions. The activities of Fe-TiO{sub 2}-PILC catalysts were consistent with their surface acidities, which were identified by FT-IR of the NH{sub 3}-adsorbed samples. The enhancement of activities by H{sub 2}O + SO{sub 2} was attributed to the increase of surface acidity resulting from the formation of surface sulfate species of iron.

Long, R.Q.; Yang, R.T. [Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Chemical Engineering] [Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Chemical Engineering

1999-09-10T23:59:59.000Z

454

219-S CORROSION STUDY  

SciTech Connect (OSTI)

A minor leak was detected in a drain line for Hood 2B located in the 222-S Laboratory. The line transfers radioactive waste, spent analytical standards, and chemicals used in various analytical procedures. Details are in the report provided by David Comstock, 2B NDE June 2008, work package LAB-WO-07-2012. Including the noted leak, the 222-S Laboratory has experienced two drain line leaks in approximately the last two years of operation. As a consequence, CH2M HILL Hanford Group, Inc. (CH2M HILL) requested the support of ChemMet, Ltd., PC (ChemMet) at the Hanford Site 222-S Laboratory. The corrosion expertise from ChemMet was required prior to preparation of a compatibility assessment for the 222-S Laboratory waste transfer system to assure the expected life of the piping system is extended as much as practicable. The system includes piping within the 222-S Laboratory and the 219-S Waste Storage and Transfer Facility and Operations Process. The ChemMet support was required for an assessment by 222-S staff to analyze what improvements to operational activities may be implemented to extend the tank/piping system life. This assessment will include a summary of the various material types, age, and locations throughout the facility. The assessment will also include a discussion of materials that are safe for drain line disposal on a regular basis, materials that are safe for disposal on a case-by-case basis including specific additional requirements such as flushing, neutralization to a specific pH, and materials prohibited from disposal. The assessment shall include adequate information for 222-S Laboratory personnel to make informed decisions in the future disposal of specific material types by discussing types of compatibility of system materials and potential wastes. The assessment is expected to contain some listing of acceptable waste materials but is not anticipated to be a complete or comprehensive list. Finally the assessment will encompass a brief discussion of acceptable limits for pipe degradation and references to applicable codes and standards.

DIVINE JR; PARSONS GL

2008-12-01T23:59:59.000Z

455

RELAP5-3D Restart and Backup Verification Testing  

SciTech Connect (OSTI)

Existing testing methodology for RELAP5-3D employs a set of test cases collected over two decades to test a variety of code features and run on a Linux or Windows platform. However, this set has numerous deficiencies in terms of code coverage, detail of comparison, running time, and testing fidelity of RELAP5-3D restart and backup capabilities. The test suite covers less than three quarters of the lines of code in the relap directory and just over half those in the environmental library. Even in terms of code features, many are not covered. Moreover, the test set runs many problems long past the point necessary to test the relevant features. It requires standard problems to run to completion. This is unnecessary for features can be tested in a short-running problem. For example, many trips and controls can be tested in the first few time steps, as can a number of fluid flow options. The testing system is also inaccurate. For the past decade, the diffem script has been the primary tool for checking that printouts from two different RELAP5-3D executables agree. This tool compares two output files to verify that all characters are the same except for those relating to date, time and a few other excluded items. The variable values printed on the output file are accurate to no more than eight decimal places. Therefore, calculations with errors in decimal places beyond those printed remain undetected. Finally, fidelity of restart is not tested except in the PVM sub-suite and backup is not specifically tested at all. When a restart is made from any midway point of the base-case transient, the restart must produce the same values. When a backup condition occurs, the code repeats advancements with the same time step. A perfect backup can be tested by forcing RELAP5 to perform a backup by falsely setting a backup condition flag at a user-specified-time. Comparison of the calculations of that run and those produced by the same input w/o the spurious condition should be identical. Backup testing is more difficult the other kinds of testing described above because it requires additional coding to implement. The testing system constructed and described in this document resolves all of these issues. A matrix of test features and short-running cases that exercise them is presented. A small information file that contains sufficient data to verify calculations to the last decimal place and bit is produced. This testing system is used to test base cases (called null testing) as well as restart and backup cases. The programming that implements these new capabilities is presented.

Dr. George L Mesina

2013-09-01T23:59:59.000Z

456

Alternative Electrochemical Salt Waste Forms, Summary of FY2010 Results  

SciTech Connect (OSTI)

In FY2009, PNNL performed scoping studies to qualify two waste form candidates, tellurite (TeO2-based) glasses and halide minerals, for the electrochemical waste stream for further investigation. Both candidates showed promise with acceptable PCT release rates and effective incorporation of the 10% fission product waste stream. Both candidates received reprisal for FY2010 and were further investigated. At the beginning of FY2010, an in-depth literature review kicked off the tellurite glasses study. The review was aimed at ascertaining the state-of-the-art for chemical durability testing and mixed chloride incorporation for tellurite glasses. The literature review led the authors to 4 unique binary and 1 unique ternary systems for further investigation which include TeO2 plus the following: PbO, Al2O3-B2O3, WO3, P2O5, and ZnO. Each system was studied with and without a mixed chloride simulated electrochemical waste stream and the literature review provided the starting points for the baseline compositions as well as starting points for melting temperature, compatible crucible types, etc. The most promising glasses in each system were scaled up in production and were analyzed with the Product Consistency Test, a chemical durability test. Baseline and PCT glasses were analyzed to determine their state, i.e., amorphous, crystalline, phase separated, had undissolved material within the bulk, etc. Conclusions were made as well as the proposed direction for FY2011 plans. Sodalite was successfully synthesized by the sol-gel method. The vast majority of the dried sol-gel consisted of sodalite with small amounts of alumino-silicates and unreacted salt. Upon firing the powders made by sol-gel, the primary phase observed was sodalite with the addition of varying amounts of nepheline, carnegieite, lithium silicate, and lanthanide oxide. The amount of sodalite, nepheline, and carnegieite as well as the bulk density of the fired pellets varied with firing temperature, sol-gel process chemistry, and the amount of glass sintering aid added to the batch. As the firing temperature was increased from 850 C to 950 C, chloride volatility increased, the fraction of sodalite decreased, and the fractions nepheline and carnegieite increased. This indicates that the sodalite structure is not stable and begins to convert to nepheline and carnegieite under these conditions at 950 C. Density has opposite relationship with relation to firing temperature. The addition of a NBS-1, a glass sintering aid, had a positive effect on bulk density and increased the stability of the sodalite structure in a minimal way.

Riley, Brian J.; Rieck, Bennett T.; Crum, Jarrod V.; Matyas, Josef; McCloy, John S.; Sundaram, S. K.; Vienna, John D.

2010-08-01T23:59:59.000Z

457

Design of a boiling water reactor equilibrium core using thorium-uranium fuel  

SciTech Connect (OSTI)

In this paper the design of a Boiling Water Reactor (BWR) equilibrium core using thorium is presented; a heterogeneous blanket-seed core arrangement concept was adopted. The design was developed in three steps: in the first step two different assemblies were designed based on the integrated blanket-seed concept, they are the blanket-dummy assembly and the blanket-seed assembly. The integrated blanketseed concept comes from the fact that the blanket and the seed rods are located in the same assembly, and are burned-out in a once-through cycle. In the second step, a core design was developed to achieve an equilibrium cycle of 365 effective full power days in a standard BWR with a reload of 104 fuel assemblies designed with an average 235U enrichment of 7.5 w/o in the seed sub-lattice. The main operating parameters, like power, linear heat generation rate and void distributions were obtained as well as the shutdown margin. It was observed that the analyzed parameters behave like those obtained in a standard BWR. The shutdown margin design criterion was fulfilled by addition of a burnable poison region in the assembly. In the third step an in-house code was developed to evaluate the thorium equilibrium core under transient conditions. A stability analysis was also performed. Regarding the stability analysis, five operational states were analyzed; four of them define the traditional instability region corner of the power-flow map and the fifth one is the operational state for the full power condition. The frequency and the boiling length were calculated for each operational state. The frequency of the analyzed operational states was similar to that reported for BWRs; these are close to the unstable region that occurs due to the density wave oscillation phenomena in some nuclear power plants. Four transient analyses were also performed: manual SCRAM, recirculation pumps trip, main steam isolation valves closure and loss of feed water. The results of these transients are similar to those obtained with the traditional UO2 nuclear fuel.

Francois, J-L.; Nunez-Carrera, A.; Espinosa-Paredes, G.; Martin-del-Campo, C.

2004-10-06T23:59:59.000Z

458

Deformation Behavior of Sub-micron and Micron Sized Alumina Particles in Compression.  

SciTech Connect (OSTI)

The ability to integrate ceramics with other materials has been limited due to high temperature (>800degC) ceramic processing. Recently, researchers demonstrated a novel process , aerosol deposition (AD), to fabricate ceramic films at room temperature (RT). In this process, sub - micro n sized ceramic particles are accelerated by pressurized gas, impacted on the substrate, plastically deformed, and form a dense film under vacuum. This AD process eliminates high temperature processing thereby enabling new coatings and device integration, in which ceramics can be deposited on metals, plastics, and glass. However, k nowledge in fundamental mechanisms for ceramic particle s to deform and form a dense ceramic film is still needed and is essential in advancing this novel RT technology. In this wo rk, a combination of experimentation and atomistic simulation was used to determine the deformation behavior of sub - micron sized ceramic particle s ; this is the first fundamental step needed to explain coating formation in the AD process . High purity, singl e crystal, alpha alumina particles with nominal size s of 0.3 um and 3.0 um were examined. Particle characterization, using transmission electron microscopy (TEM ), showed that the 0.3 u m particles were relatively defect - free single crystals whereas 3.0 u m p articles were highly defective single crystals or particles contained low angle grain boundaries. Sub - micron sized Al 2 O 3 particles exhibited ductile failure in compression. In situ compression experiments showed 0.3um particles deformed plastically, fractured, and became polycrystalline. Moreover, dislocation activit y was observed within the se particles during compression . These sub - micron sized Al 2 O 3 particles exhibited large accum ulated strain (2 - 3 times those of micron - sized particles) before first fracture. I n agreement with the findings from experimentation , a tomistic simulation s of nano - Al 2 O 3 particles showed dislocation slip and significant plastic deformation during compressi on . On the other hand, the micron sized Al 2 O 3 particles exhibited brittle f racture in compression. In situ compression experiments showed 3um Al 2 O 3 particles fractured into pieces without observable plastic deformation in compression. Particle deformation behaviors will be used to inform Al 2 O 3 coating deposition parameters and particle - particle bonding in the consolidated Al 2 O 3 coatings.

Sarobol, Pylin; Chandross, Michael E.; Carroll, Jay; Mook, William; Boyce, Brad; Kotula, Paul G.; McKenzie, Bonnie B.; Bufford, Daniel Charles; Hall, Aaron Christopher.

2014-09-01T23:59:59.000Z

459

A validation study of existing neutronics tools against ZPPR-21 and ZPPR-15 critical experiments.  

SciTech Connect (OSTI)

A study was performed to validate the existing tools for fast reactor neutronics analysis against previous critical experiments. The six benchmark problems for the ZPPR-21 critical experiments phases A through F specified in the Handbook of Evaluated Criticality Safety Benchmark Experiments were analyzed. Analysis was also performed for three loading configurations of the ZPPR-15 Phase A experiments. As-built core models were developed in XYZ geometries using the reactor loading records and drawer master information. Detailed Monte Carlo and deterministic transport calculations were performed, along with various modeling sensitivity analyses. The Monte Carlo simulations were carried out with the VIM code with continuous energy cross sections based on the ENDF/B-V.2 data. For deterministic calculations, region-dependent 230-group cross sections were generated using the ETOE-2/MC-2/SDX code system, again based on the ENDF/B-V.2 data. Plate heterogeneity effects were taken into account by SDX unit cell calculations. Core calculations were performed with the TWODANT discrete ordinate code for the ZPPR-21 benchmarks, and with the DIF3D nodal transport option for the ZPPR-15 experiments. For all six ZPPR-21 configurations where the Pu-239 concentration varies from 0 to 49 w/o and the U-235 concentration accordingly varies from 62 to 0 w/o, the core multiplication factor determined with a 230-group TWODANT calculation agreed with the VIM Monte Carlo solution within 0.20 %{Delta}k, and there was no indication of any systematic bias. The quality of principal cross sections generated with the MC-2 code was comparable to that of VIM cross sections. The overall reactivity effect due to the errors in the 230-group principal cross sections was estimated to be less than 0.05 %{Delta}k. The statistics of the differences between calculated values and specified benchmark experimental values showed similar bias (from -0.28 %{Delta}k to 0.33 %{Delta}k) for MC{sup 2}-2/TWODANT and VIM. This result suggests that the criticality prediction accuracy of MC{sup 2}-2/TWODANT is comparable to VIM. Investigation of group collapsing methods showed that direct generation of broad-group cross sections from MC{sup 2}-2 calculations was not adequate for analysis of ZPPR-21 assemblies. Scalar flux weighting for all cross sections, including anisotropic cross sections, was not sufficiently accurate, either. The use of higher flux moments for anisotropic scattering cross section collapsing reproduced the fine-group results with broad-group calculations. The ZPPR-15 analyses, starting from detailed as-built plate geometries, showed that the plate heterogeneity effect was as large as 1.3 %{Delta}k. Through a series of sensitivity studies, a procedure to generate effective cross sections was developed based on one-dimensional SDX unit cell calculations. With this procedure to account for the plate heterogeneity effect, the core multiplication factor determined with a 230-group DIF3D nodal transport calculation agreed with the VIM Monte Carlo solution within 0.12 %{Delta}k. It was however observed that the calculated values consistently underestimated the criticality by 0.32 %{Delta}k to 0.43 %{Delta}k. The sodium void worths determined from VIM Monte Carlo and DIF3D nodal transport calculations were also very close to each other, but both predictions overestimated the measured void worth by {approx}0.1 %{Delta}k, which amounted to {approx}40% of the measured value. Further investigation is needed to identify the reason for this discrepancy between calculated and measured sodium void worths. In summary, for all nine core configurations of ZPPR-21 and ZPPR-15 analyzed in this study, the deterministic transport solutions showed good agreement with Monte Carlo results. These results indicate that the existing deterministic methods for multigroup cross section generation and core calculation are adequate to use in the initial design stage of Advanced Burner Reactors, for which the startup fuel is expected to be conventional plutonium fuel. However, further verifica

Yang, W.S.; Kim, S.J. (Nuclear Engineering Division)

2007-09-30T23:59:59.000Z

460

Syracuse University Test Report On Uptake Factor Resulting From A Dropped Storage Container  

SciTech Connect (OSTI)

Under certain circumstances, powder from an accidently dropped container can become airborne and inhaled by people nearby such as those who are moving the containers. The inhaled fine particles can deposit on respiratory tracts and lungs, causing asthma, lung cancer, and other acute respiratory illnesses and chronic symptoms. The objective of this study was to develop a standard procedure to measure the airborne concentrations of different size particles within the vicinity of a dropped container where a significant portion of the contained powder is ejected. Tungsten oxide (WO{sub 3}) was selected in this study to represent relatively heavy powders (7.16 g/cm3 specific gravity for WO{sub 3}). A typical can with the outer dimensions of 4.25 diameter and 4.875 tall was used as the container. The powder was dropped in two different configurations: 1) contained within a can covered by a lid that has a 0.25 diameter hole, and 2) contained within a can without a lid. The packing volume of the powder was 51.4 in{sup 3} (842.7 cm{sup 3}) and the target mass was 1936 g. The tests were carried out in a full-scale stainless steel environmental chamber with an interior volume of 852 ft{sup 3} (24.1 m{sup 3}). The chamber system includes an internal recirculation loop with a rectangular air diffuser and 10 variable frequency drive fans to provide a typical room air recirculation flow pattern. Two air filters were installed in the chamber air supply duct and return duct to achieve the required low background particle concentration. The initial chamber air conditions were set at 70F ( 5F) and 50% ( 10%) RH. A supporting frame and releasing device were designed and built to trigger consistently the dropping of the can at a height of 8 feet from the bottom of the can to the impacting surface. The particle sampling inlet was placed 5 ft above the floor and 6 inches laterally away from the cans falling path. Concentrations of particles between 0.5 ?m and 20 ?m were recorded in units of mass and number of particles per unit volume. The data acquisition rate was once every 2 seconds during the first 2 hours and every 20 seconds thereafter. A test procedure was developed and a total of nine drop tests were performed. In most cases (seven tests), the can tipped over after dropping. The can in Test 1 stayed upright. The can in Test 7 showed a special behavior: after the rebound, it turned upside down and stayed upright. Major findings are summarized below: ? The amount of spilled powder varied from 0.12 g to 252.35 g and the non-recovered powder varied from 0.11 g to 1.18 g. The corresponding percentage of the spilled powder ranged from 0.01% to 13%. ? The peak value of particle number concentration after the dropping of the can occurred at approximately 0.9 ?m particle size per measured data of individual channels. The peak value of particle mass concentration occurred in the range of 4.3 - 10 ?m particle size per grouped data calculated from the measured data with the exception of Test 4 where a different batch powder with unexpectedly different bulk density and particle size distribution. ? After the dropping of the can, the total airborne mass concentrations ranged from 0.03 to 0.35 mg/m{sup 3}, while the total airborne number concentrations ranged from 2 to 125 #/cm{sup 3} except for Test 4. The number concentration in Test 4 was 1 or 2 orders of magnitude less than those of other tests because the powder was from a different batch. However, its mass concentration was comparable to that in Test 7 because relatively more big airborne particles were detected in Test 4. In general, tests with lid (Test 5, 6, 7 and 8) had smaller concentrations than tests without lid (Test 0, 1, 2, and 3). The influence of lid was not as prominent as the powder (Test 4). However, this needs more tests for verification. ? The ratio of airborne mass to non-recovered mass ranged from 0.1% to 2%. This means that it is challenging to use this method to check the mass balance, while the uptake factor and associated inhalation exposur

Gao, Z.; Zhang, J. S.

2010-09-01T23:59:59.000Z

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461

Oxidation of Mercury in Products of Coal Combustion  

SciTech Connect (OSTI)

Laboratory measurements of mercury oxidation during selective catalytic reduction (SCR) of nitric oxide, simulation of pilot-scale measurements of mercury oxidation and adsorption by unburned carbon and fly ash, and synthesis of new materials for simultaneous oxidation and adsorption of mercury, were performed in support of the development of technology for control of mercury emissions from coal-fired boilers and furnaces. Conversion of gas-phase mercury from the elemental state to water-soluble oxidized form (HgCl{sub 2}) enables removal of mercury during wet flue gas desulfurization. The increase in mercury oxidation in a monolithic V{sub 2}O{sub 5}-WO{sub 3}/TiO{sub 2} SCR catalyst with increasing HCl at low levels of HCl (< 10 ppmv) and decrease in mercury oxidation with increasing NH{sub 3}/NO ratio during SCR were consistent with results of previous work by others. The most significant finding of the present work was the inhibition of mercury oxidation in the presence of CO during SCR of NO at low levels of HCl. In the presence of 2 ppmv HCl, expected in combustion products from some Powder River Basin coals, an increase in CO from 0 to 50 ppmv reduced the extent of mercury oxidation from 24 {+-} 3 to 1 {+-} 4%. Further increase in CO to 100 ppmv completely suppressed mercury oxidation. In the presence of 11-12 ppmv HCl, increasing CO from 0 to {approx}120 ppmv reduced mercury oxidation from {approx}70% to 50%. Conversion of SO{sub 2} to sulfate also decreased with increasing NH{sub 3}/NO ratio, but the effects of HCl and CO in flue gas on SO{sub 2} oxidation were unclear. Oxidation and adsorption of mercury by unburned carbon and fly ash enables mercury removal in a particulate control device. A chemical kinetic mechanism consisting of nine homogeneous and heterogeneous reactions for mercury oxidation and removal was developed to interpret pilot-scale measurements of mercury oxidation and adsorption by unburned carbon and fly ash in experiments at pilot scale, burning bituminous coals (Gale, 2006) and blends of bituminous coals with Powder River Basin coal (Gale, 2005). The removal of mercury by fly ash and unburned carbon in the flue gas from combustion of the bituminous coals and blends was reproduced with satisfactory accuracy by the model. The enhancement of mercury capture in the presence of calcium (Gale, 2005) explained a synergistic effect of blending on mercury removal across the baghouse. The extent of mercury oxidation, on the other hand, was not so well described by the simulation, because of oversensitivity of the oxidation process in the model to the concentration of unburned carbon. Combined catalysts and sorbents for oxidation and removal of mercury from flue gas at low temperature were based on surfactant-templated silicas containing a transition metal and an organic functional group. The presence of both metal ions and organic groups within the pore structure of the materials is expected to impart to them the ability to simultaneously oxidize elemental mercury and adsorb the resulting oxidized mercury. Twelve mesoporous organosilicate catalysts/sorbents were synthesized, with and without metals (manganese, titanium, vanadium) and organic functional groups (aminopropyl, chloropropyl, mercaptopropyl). Measurement of mercury oxidation and adsorption by the candidate materials remains for future work.

Peter Walsh; Giang Tong; Neeles Bhopatkar; Thomas Gale; George Blankenship; Conrad Ingram; Selasi Blavo Tesfamariam Mehreteab; Victor Banjoko; Yohannes Ghirmazion; Heng Ban; April Sibley

2009-09-14T23:59:59.000Z

462

Advanced Automotive Fuels Research, Development, and Commercialization Cluster (OH)  

SciTech Connect (OSTI)

Technical aspects of producing alternative fuels that may eventually supplement or replace conventional the petroleum-derived fuels that are presently used in vehicular transportation have been investigated. The work was centered around three projects: 1) deriving butanol as a fuel additive from bacterial action on sugars produced from decomposition of aqueous suspensions of wood cellulose under elevated temperature and pressure; 2) using highly ordered, openly structured molecules known as metal-organic framework (MOF) compounds as adsorbents for gas separations in fuel processing operations; and 3) developing a photocatalytic membrane for solar-driven water decomposition to generate pure hydrogen fuel. Several departments within the STEM College at YSU contributed to the effort: Chemistry, Biology, and Chemical Engineering. In the butanol project, sawdust was blended with water at variable pH and temperature (150 250{degrees}C), and heated inside a pressure vessel for specified periods of time. Analysis of the extracts showed a wide variety of compounds, including simple sugars that bacteria are known to thrive upon. Samples of the cellulose hydrolysate were fed to colonies of Clostridium beijerinckii, which are known to convert sugars to a mixture of compounds, principally butanol. While the bacteria were active toward additions of pure sugar solutions, the cellulose extract appeared to inhibit butanol production, and furthermore encouraged the Clostridium to become dormant. Proteomic analysis showed that the bacteria had changed their genetic code to where it was becoming sporulated, i.e., the bacteria were trying to go dormant. This finding may be an opportunity, as it may be possible to genetically engineer bacteria that resist the butanol-driven triggering mechanism to stop further fuel production. Another way of handling the cellulosic hydrolysates was to simply add the enzymes responsible for butanol synthesis to the hydrolytic extract ex-vivo. These enzymes are generally not available commercially, however, and those that are can be quite expensive. Accordingly, the genes responsible for enzyme synthesis were inserted into other microorganisms in order to accelerate enzyme production. This was demonstrated for two of the required enzymes in the overall series. In the MOF project, a number of new MOF compounds were synthesized and characterized, as well as some common MOFs well-known for their adsorption properties. Selectivity for specific gases such as CO{sub 2} and H{sub 2} was demonstrated, although it was seen that water vapor would frequently act as an interferent. This work underscored the need to test MOF compounds under real world conditions, i.e., room temperature and above instead of liquid N{sub 2} temperature, and testing adsorption using blends of gases instead of pure components. In the solar membrane project, thin films of CdTe and WO{sub 3} were applied to steel substrates and used as p-type and n-type semiconductors, respectively, in the production of H{sub 2} and O{sub 2}. Testing with {sup 2}H and {sup 18}O isotopically labeled water enabled substantiation of net water-splitting.

Linkous, Clovis; Hripko, Michael; Abraham, Martin; Balendiran, Ganesaratnam; Hunter, Allen; Lovelace-Cameron, Sherri; Mette, Howard; Price, Douglas; Walker, Gary; Wang, Ruigang

2013-08-31T23:59:59.000Z

463

PWR core design, neutronics evaluation and fuel cycle analysis for thorium-uranium breeding recycle  

SciTech Connect (OSTI)

This paper was focused on core design, neutronics evaluation and fuel cycle analysis for Thorium-Uranium Breeding Recycle in current PWRs, without any major change to the fuel lattice and the core internals, but substituting the UOX pellet with Thorium-based pellet. The fuel cycle analysis indicates that Thorium-Uranium Breeding Recycle is technically feasible in current PWRs. A 4-loop, 193-assembly PWR core utilizing 17 x 17 fuel assemblies (FAs) was taken as the model core. Two mixed cores were investigated respectively loaded with mixed reactor grade Plutonium-Thorium (PuThOX) FAs and mixed reactor grade {sup 233}U-Thorium (U{sub 3}ThOX) FAs on the basis of reference full Uranium oxide (UOX) equilibrium-cycle core. The UOX/PuThOX mixed core consists of 121 UOX FAs and 72 PuThOX FAs. The reactor grade {sup 233}U extracted from burnt PuThOX fuel was used to fabrication of U{sub 3}ThOX for starting Thorium-. Uranium breeding recycle. In UOX/U{sub 3}ThOX mixed core, the well designed U{sub 3}ThOX FAs with 1.94 w/o fissile uranium (mainly {sup 233}U) were located on the periphery of core as a blanket region. U{sub 3}ThOX FAs remained in-core for 6 cycles with the discharged burnup achieving 28 GWD/tHM. Compared with initially loading, the fissile material inventory in U{sub 3}ThOX fuel has increased by 7% via 1-year cooling after discharge. 157 UOX fuel assemblies were located in the inner of UOX/U{sub 3}ThOX mixed core refueling with 64 FAs at each cycle. The designed UOX/PuThOX and UOX/U{sub 3}ThOX mixed core satisfied related nuclear design criteria. The full core performance analyses have shown that mixed core with PuThOX loading has similar impacts as MOX on several neutronic characteristic parameters, such as reduced differential boron worth, higher critical boron concentration, more negative moderator temperature coefficient, reduced control rod worth, reduced shutdown margin, etc.; while mixed core with U{sub 3}ThOX loading on the periphery of core has no visible impacts on neutronic characteristics compared with reference full UOX core. The fuel cycle analysis has shown that {sup 233}U mono-recycling with U{sub 3}ThOX fuel could save 13% of natural uranium resource compared with UOX once through fuel cycle, slightly more than that of Plutonium single-recycling with MOX fuel. If {sup 233}U multi-recycling with U{sub 3}ThOX fuel is implemented, more natural uranium resource would be saved. (authors)

Bi, G.; Liu, C.; Si, S. [Shanghai Nuclear Engineering Research and Design Inst., No. 29, Hongcao Road, Shanghai, 200233 (China)

2012-07-01T23:59:59.000Z

464

Modular Hybrid Plasma Reactor for Low Cost Bulk Production of Nanomaterials  

SciTech Connect (OSTI)

INL developed a bench scale modular hybrid plasma system for gas phase nanomaterials synthesis. The system was being optimized for WO3 nanoparticles production and scale model projection to a 300 kW pilot system. During the course of technology development many modifications had been done to the system to resolve technical issues that had surfaced and also to improve the performance. All project tasks had been completed except 2 optimization subtasks. These 2 subtasks, a 4-hour and an 8-hour continuous powder production runs at 1 lb/hr powder feeding rate, were unable to complete due to technical issues developed with the reactor system. The 4-hour run had been attempted twice and both times the run was terminated prematurely. The modular electrode for the plasma system was significantly redesigned to address the technical issues. Fabrication of the redesigned modular electrodes and additional components had been completed at the end of the project life. However, not enough resource was available to perform tests to evaluate the performance of the new modifications. More development work would be needed to resolve these problems prior to scaling. The technology demonstrated a surprising capability of synthesizing a single phase of meta-stable delta-Al2O3 from pure alpha-phase large Al2O3 powder. The formation of delta-Al2O3 was surprising because this phase is meta-stable and only formed between 973-1073 K, and delta-Al2O3 is very difficult to synthesize as a single phase. Besides the specific temperature window to form this phase, this meta-stable phase may have been stabilized by nanoparticle size formed in a high temperature plasma process. This technology may possess the capability to produce unusual meta-stable nanophase materials that would be otherwise difficult to produce by conventional methods. A 300 kW INL modular hybrid plasma pilot scale model reactor had been projected using the experimental data from PPG Industries 300 kW hot wall plasma reactor. The projected size of the INL 300 kW pilot model reactor would be about 15% that of the PPG 300 kW hot wall plasma reactor. Including the safety net factor the projected INL pilot reactor size would be 25-30% of the PPG 300 kW hot wall plasma pilot reactor. Due to the modularity of the INL plasma reactor and the energy cascading effect from the upstream plasma to the downstream plasma the energy utilization is more efficient in material processing. It is envisioning that the material through put range for the INL pilot reactor would be comparable to the PPG 300 kW pilot reactor but the energy consumption would be lower. The INL hybrid plasma technology is rather close to being optimized for scaling to a pilot system. More near term development work is still needed to complete the process optimization before pilot scaling.

Peter C. Kong

2011-12-01T23:59:59.000Z

465

Targeted Technology Transfer to US Independents  

SciTech Connect (OSTI)

The Petroleum Technology Transfer Council (PTTC) was established by domestic crude oil and natural gas producers, working in conjunction with the Independent Petroleum Association of America (IPAA), the U.S. Department of Energy (DOE) and selected universities, in 1994 as a national not-for-profit organization. Its goal is to transfer Exploration and Production (E&P) technology to the domestic upstream petroleum industry, in particular to the small independent operators. PTTC connects producers, technology providers and innovators, academia, and university/industry/government research and development (R&D) groups. From inception PTTC has received federal funding through DOE's oil and natural gas program managed by the National Energy Technology Laboratory (NETL). With higher funding available in its early years, PTTC was able to deliver well more than 100 workshops per year, drawing 6,000 or more attendees per year. Facing the reality of little or no federal funding in the 2006-2007 time frame, PTTC and the American Association of Petroleum Geologists (AAPG) worked together for PTTC to become a subsidiary organization of AAPG. This change brings additional organizational and financial resources to bear for PTTC's benefit. PTTC has now been 'powered by AAPG' for two full fiscal years. There is a clear sense that PTTC has stabilized and is strengthening its regional workshop and national technology transfer programs and is becoming more entrepreneurial in exploring technology transfer opportunities beyond its primary DOE contract. Quantitative accomplishments: PTTC has maintained its unique structure of a national organization working through Regional Lead Organizations (RLOs) to deliver local, affordable workshops. During the contract period PTTC consolidated from 10 to six regions efficiency and alignment with AAPG sections. The number of workshops delivered by its RLOs during the contract period is shown below. Combined attendance over the period was approximately 32,000, 70% of whom were repeat attendees. Participant feedback established that 40% of them said they had applied a technology they learned of through PTTC. Central/Eastern Gulf Univ. of Alabama, LSU Center for Energy Studies 77 Eastern West Virginia University, Illinois Geological Survey, W. Michigan Univ. 99 Midcontinent University of Kansas, University of Tulsa, Okla. Geological Survey (past) 123 Rocky Mountains Colorado School of Mines 147 Texas/SE New Mexico Bureau of Economic Geology, U. of Texas at Austin 85 West Coast Conservation Committee of California O&G Producers, Univ. So. Cal. (past) 54 At the national level HQ went from an office in Houston to a virtual office in the Tulsa, Okla. area with AAPG providing any physical assets required. There are no employees, rather several full time and several part time contractors. Since inception, PTTC has produced quarterly and mailed the 16-page Network News newsletter. It highlights new advances in technology and has a circulation of 19,000. It also produces the Tech Connections Column in The American Oil & Gas Reporter, with a circulation of 13,000. On an approximate three-week frequency, the electronic Email Tech Alert goes out to 9,000 readers. The national staff also maintains a central website with information of national interest and individual sections for each of the six regions. The national organization also provides legal and accounting services, coordinates the RLO activities, exhibits at at least major national and other meetings, supports the volunteer Board as it provides strategic direction, and is working to restore the Producer Advisory Groups to bolster the regional presence. Qualitative Value: Three qualitative factors confirm PTTC's value to the domestic O&G producing industry. First, AAPG was willing to step in and rescue PTTC, believing it was of significant interest to its domestic membership and of potential value internationally. Second, through a period of turmoil and now with participant fees dramatically increased, industry participants 'keep coming back' to wo

E. Lance Cole

2009-09-30T23:59:59.000Z

466

Principles of water oxidation and O2-based hydrocarbon transformation by multinuclear catalytic sites  

SciTech Connect (OSTI)

Abstract The central thrust of this integrated experimental and computational research program was to obtain an atomistic-level understanding of the structural and dynamic factors underlying the design of catalysts for water oxidation and selective reductant-free O2-based transformations. The focus was on oxidatively robust polyoxometalate (POM) complexes in which a catalytic active site interacts with proximal metal centers in a synergistic manner. Thirty five publications in high-impact journals arose from this grant. I. Developing an oxidatively and hydrolytically stable and fast water oxidation catalyst (WOC), a central need in the production of green fuels using water as a reductant, has proven particularly challenging. During this grant period we have designed and investigated several carbon-free, molecular (homogenous), oxidatively and hydrolytically stable WOCs, including the Rb8K2[{Ru4O4(OH)2(H2O)4}(?-SiW10O36)2]25H2O (1) and [Co4(H2O)2(?-PW9O34)2]10- (2). Although complex 1 is fast, oxidatively and hydrolytically stable WOC, Ru is neither abundant nor inexpensive. Therefore, development of a stable and fast carbon-free homogenous WOC, based on earth-abundant elements became our highest priority. In 2010, we reported the first such catalyst, complex 2. This complex is substantially faster than 1 and stable under homogeneous conditions. Recently, we have extended our efforts and reported a V2-analog of the complex 2, i.e. [Co4(H2O)2(?-VW9O34)2]10- (3), which shows an even greater stability and reactivity. We succeeded in: (a) immobilizing catalysts 1 and 2 on the surface of various electrodes, and (b) elucidating the mechanism of O2 formation and release from complex 1, as well as the Mn4O4L6 cubane cluster. We have shown that the direct O-O bond formation is the most likely pathway for O2 formation during water oxidation catalyzed by 1. II. Oxo transfer catalysts that contain two proximal and synergistically interacting redox active metal centers in the active site form another part of considerable interest of our grant because species with such sites [including methane monooxygenase (MMO) and more] are some of the most effective oxygenase catalysts known. Our team conducted the following research on ?-M2-Keggin complexes: (a) investigated stability of the trimer [{Fe3(OH)3(H2O)2}3(?-SiW10O36)3]15-, 4, in water, and developed the chemistry and catalysis of the di-iron centered POM, [?(1,2)-SiW10{Fe(OH)}2O38]6-, 5, in organic solvents (Figure 2). We also study the thermodynamic and structural stability of ?-M2-Keggin in aqueous media for different Ms (d-electron metals). We have defined two structural classes of POMs with proximally bound d-electron metal centers. We refer to these structural isomers of the {?-M2SiW10} family of POMs as in-pocket and out-of pocket. We have elucidated the factors controlling the structure and stability of the V, Fe, Ru, Tc, Mo and Rh derivatives of [(SiO4)M2(OH)2W10O32]4- using a range of computational tools. We have: (a) demonstrated that heteroatom X in these polyanions may function as an internal switch for defining the ground electronic states and, consequently, the reactivity of the ?-M2-Keggin POM complexes; (b) elucidated reactivity of divacant lacunary species and polyperoxotungstates (PPTs), {Xn+O4[WO(O2)2]4}n-, which could be degradation products of ?-M2-Keggin complexes in aqueous media; (c) elucidated the role of the POM ligand in stabilization of {Ru2} and {(Ru-oxo)2} fragments in the reactant and product of the reaction of {?-[(Xn+O4)Ru2(OH)2W10O32]}(8-n)- (where X = Si4+, P5+ and S6+) with O2, and (d) the mechanisms of olefin epoxidation catalyzed by these di-d-transition metal substituted and divacant lacunary ?-M2-Keggin complexes. III. Complementing the efforts presented above was the development of less time-consuming but reasonably accurate computational methods allowing one to explore more deeply large catalytic systems. We developed Reactive Force Field (ReaxFF) to study interaction of the targeted POMs with water, pro

Musaev, Djamaladdin G [Chemistry, Emory University; Hill, Craig L [Chemistry, Emory University; Morokuma, Keiji [Chemistry, Emory University

2014-10-28T23:59:59.000Z

467

Photoelectrochemical Hydrogen Production  

SciTech Connect (OSTI)

The objectives of this project, covering two phases and an additional extension phase, were the development of thin film-based hybrid photovoltaic (PV)/photoelectrochemical (PEC) devices for solar-powered water splitting. The hybrid device, comprising a low-cost photoactive material integrated with amorphous silicon (a-Si:H or a-Si in short)-based solar cells as a driver, should be able to produce hydrogen with a 5% solar-to-hydrogen conversion efficiency (STH) and be durable for at least 500 hours. Three thin film material classes were studied and developed under this program: silicon-based compounds, copper chalcopyrite-based compounds, and metal oxides. With the silicon-based compounds, more specifically the amorphous silicon carbide (a-SiC), we achieved a STH efficiency of 3.7% when the photoelectrode was coupled to an a-Si tandem solar cell, and a STH efficiency of 6.1% when using a crystalline Si PV driver. The hybrid PV/a-SiC device tested under a current bias of -3~4 mA/cm{sup 2}, exhibited a durability of up to ~800 hours in 0.25 M H{sub 2}SO{sub 4} electrolyte. Other than the PV driver, the most critical element affecting the photocurrent (and hence the STH efficiency) of the hybrid PV/a-SiC device was the surface energetics at the a-SiC/electrolyte interface. Without surface modification, the photocurrent of the hybrid PEC device was ~1 mA/cm{sup 2} or lower due to a surface barrier that limits the extraction of photogenerated carriers. We conducted an extensive search for suitable surface modification techniques/materials, of which the deposition of low work function metal nanoparticles was the most successful. Metal nanoparticles of ruthenium (Ru), tungsten (W) or titanium (Ti) led to an anodic shift in the onset potential. We have also been able to develop hybrid devices of various configurations in a monolithic fashion and optimized the current matching via altering the energy bandgap and thickness of each constituent cell. As a result, the short-circuit photocurrent density of the hybrid device (measured in a 2-electrode configuration) increased significantly without assistance of any external bias, i.e. from ?1 mA/cm{sup 2} to ~5 mA/cm{sup 2}. With the copper chalcopyrite compounds, we have achieved a STH efficiency of 3.7% in a coplanar configuration with 3 a-Si solar cells and one CuGaSe{sub 2} photocathode. This material class exhibited good durability at a photocurrent density level of -4 mA/cm{sup 2} (5% STH equivalent) at a fixed potential (-0.45 VRHE). A poor band-edge alignment with the hydrogen evolution reaction (HER) potential was identified as the main limitation for high STH efficiency. Three new pathways have been identified to solve this issue. First, PV driver with bandgap lower than that of amorphous silicon were investigated. Crystalline silicon was identified as possible bottom cell. Mechanical stacks made with one Si solar cell and one CuGaSe{sub 2} photocathode were built. A 400 mV anodic shift was observed with the Si cell, leading to photocurrent density of -5 mA/cm{sup 2} at 0VRHE (compared to 0 mA/cm{sup 2} at the same potential without PV driver). We also investigated the use of p-n junctions to shift CuGaSe{sub 2} flatband potential anodically. Reactively sputtered zinc oxy-sulfide thin films was evaluated as n-type buffer and deposited on CuGaSe{sub 2}. Ruthenium nanoparticles were then added as HER catalyst. A 250 mV anodic shift was observed with the p-n junction, leading to photocurrent density at 0VRHE of -1.5 mA/cm{sup 2}. Combining this device with a Si solar cell in a mechanical stack configuration shifted the onset potential further (+400 mV anodically), leading to photocurrent density of -7 mA/cm{sup 2} at 0VRHE. Finally, we developed wide bandgap copper chalcopyrite thin film materials. We demonstrated that Se can be substituted with S using a simple annealing step. Photocurrent densities in the 5-6 mA/cm{sub 2} range were obtained with red 2.0eV CuInGaS{sub 2} photocathodes. With the metal oxide compounds, we have demonstrated that a WO{sub 3}-based hybrid p

Hu, Jian

2013-12-23T23:59:59.000Z