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


1

gr veins gr + x Boom House Group  

E-Print Network [OSTI]

Granite gr veins gr + x granite veins intruding host rock granite with xenoliths Field trip stop locality

Kidd, William S. F.

2

Mathematics Required Courses Cr. Semester Gr.  

E-Print Network [OSTI]

Discrete Mathematics 3 Math 321 or Math 421 Applied Stat. Methods Stat. Theory I 3 Elective Course* Cr Student: ID# Catalog: Advisor Upper Division Courses* Required Courses Cr. Semester Gr. *20 cr

Delene, David J.

3

sin 2 beta + gamma Measurements  

SciTech Connect (OSTI)

I report on the most recent measurements done to constrain sin(2{beta}+{gamma}) with neutral B mesons. Direct measurements of 2{beta} + {gamma} will provide a precise test of the standard model predictions with higher statistics. Present constraints come from studies of B {yields} D{sup (*){+-}}{pi}{sup {-+}}/{rho}{sup {-+}} decays done by BABAR and Belle collaborations with full and inclusive techniques to reconstruct B mesons. B {yields} D{sup 0(*)}K{sup 0} decays are also very promising but statistics are too low to give any constraint at the moment.

Therin, G; /Paris U., VI-VII

2005-06-24T23:59:59.000Z

4

E-Print Network 3.0 - a508 gr 4n Sample Search Results  

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

p . The graded vector space gr(G) n1 gr n (G) has a Lie algebra structure... is the image of x i in gr 1 (F ) then gr(F ) is the free Lie algebra on 1 , . ... Source:...

5

Computer Science Major Worksheet B.A. Degree Student: _______________________ ID#___________ Catalog:_________ Advisor _____________  

E-Print Network [OSTI]

10/15/2012 Computer Science Major Worksheet ­ B.A. Degree Student: _______________________ ID#___________ Catalog:_________ Advisor _____________ Computer Science Required Courses Cr. Semester Gr. CSci 160 Computer Science I 4 CSci 161 Computer Science II 4 CSci 230 Systems Programming 3 CSci 242 Algo. & Data

Delene, David J.

6

Babar: Sin(2beta) With Charm  

SciTech Connect (OSTI)

We present measurements of time-dependent CP asymmetries of neutral B decays to several charm and charmonium final states. Data have been collected with the BABAR detector at the PEP-II storage ring at the Stanford Linear Accelerator Center. In the absence of penguin contribution, the Standard Model predicts the time-dependent CP asymmetry parameters S and C are to be {eta}{sub CP} sin(2{beta}) and 0, respectively.

Grenier, P.; /Ecole Polytechnique /Clermont-Ferrand U.

2006-04-12T23:59:59.000Z

7

BA War & Society Module Information  

E-Print Network [OSTI]

BA War & Society Module Information 2014-2015 www.swansea.ac.uk/artsandhumanities Arts Studies BA War & Society BA War & Society The scope and scale of the BA (Hons) War and Society degree Theories of War 1 (compulsory) HUA102 War and Warfare in the Modern World (compulsory) HIH118 World History

Harman, Neal.A.

8

Gr\\"obner bases of ideals cogenerated by Pfaffians  

E-Print Network [OSTI]

We characterise the class of one-cogenerated Pfaffian ideals whose natural generators form a Gr\\"obner basis with respect to any anti-diagonal term-order. We describe their initial ideals as well as the associated simplicial complexes, which turn out to be shellable and thus Cohen-Macaulay. We also provide a formula for computing their multiplicity.

De Negri, Emanuela

2010-01-01T23:59:59.000Z

9

(www.wtert.gr) Waste-to-Energy Research &  

E-Print Network [OSTI]

­ WTERT (www.wtert.gr) 1 Waste-to-Energy Research & Technology Council WTERT Greece ­ SYNERGIA Dr. Efstratios Kalogirou is the President of Waste-to-Energy Research & Technology Council (WTERT.S.A. (cooperating with Professor N. Themelis) , in the scientific fields: energy recovery from solid wastes, potable

10

S:\\Registration & Records\\Term Communications\\2014 Spring\\GR Spring 2014 NEW GR WEB Instructions.docx page 1 of 2 JOHNS HOPKINS UNIVERSITY  

E-Print Network [OSTI]

to Registration 4. Click on Search for Classes/Registration 5. Select the academic period (Spring 2014), enter the course number, and then click Search 6. To choose your preferred section, enter a check markS:\\Registration & Records\\Term Communications\\2014 Spring\\GR Spring 2014 NEW GR WEB Instructions

Weaver, Harold A. "Hal"

11

S:\\Registration & Records\\Term Communications\\2015 Spring\\GR Spring 2015 NEW GR WEB Instructions.docx page 1 of 2 JOHNS HOPKINS UNIVERSITY  

E-Print Network [OSTI]

to Registration 4. Click on Search for Classes/Registration 5. Select the academic period (Spring 2015), enter the course number, and then click Search 6. To choose your preferred section, enter a check markS:\\Registration & Records\\Term Communications\\2015 Spring\\GR Spring 2015 NEW GR WEB Instructions

Weaver, Harold A. "Hal"

12

S:\\Registration & Records\\Term Communications\\2014 Spring\\GR Spring 2014 NEW GR WEB Instructions.docx page 1 of 2 JOHNS HOPKINS UNIVERSITY  

E-Print Network [OSTI]

. Sign In and enter your JHED ID and password 3. Point to Registration 4. Click on Search for Classes/Registration 5. Select the academic period (Spring 2015), enter the course number, and then click Search 6S:\\Registration & Records\\Term Communications\\2014 Spring\\GR Spring 2014 NEW GR WEB Instructions

Weaver, Harold A. "Hal"

13

S:\\Registration & Records\\Term Communications\\2014 Fall\\GR FAll 2014 NEW GR WEB Instructions.docx page 1 of 2 JOHNS HOPKINS UNIVERSITY  

E-Print Network [OSTI]

to Registration 4. Click on Search for Classes/Registration 5. Select the academic period Fall 2014, enter the course number, and then click Search 6. To choose your preferred section, enter a check markS:\\Registration & Records\\Term Communications\\2014 Fall\\GR FAll 2014 NEW GR WEB Instructions

Weaver, Harold A. "Hal"

14

*Corresponding author.Email contacts: nenes@its.caltech.edu, assim@chemeng.ntua.gr Simulation of Airlift Pumps for Moderate-Depth Water Wells  

E-Print Network [OSTI]

Polytechniou 9, GR 157-73, Zografou, Athens, Greece 2 IGME, Department of Geothermy, Zagoras 16, GR 115

Nenes, Athanasios

15

Oxygen and Nitrogen in Leo A and GR 8  

E-Print Network [OSTI]

We present elemental abundances for multiple HII regions in Leo A and GR 8 obtained from long slit optical spectroscopy of these two nearby low luminosity dwarf irregular galaxies. As expected from their luminosities, and in agreement with previous observations, the derived oxygen abundances are extremely low in both galaxies. High signal-to-noise ratio observations of a planetary nebula in Leo A yield 12 + log(O/H) = 7.30 +/- 0.05; "semi-empirical" calculations of the oxygen abundance in four HII regions in Leo A indicate 12 + log(O/H) = 7.38 +/- 0.10. These results confirm that Leo A has one of the lowest ISM metal abundances of known nearby galaxies. Based on results from two HII regions with high signal-to-noise measurements of the weak [O III] 4363 line, the mean oxygen abundance of GR 8 is 12 + log(O/H) = 7.65 +/- 0.06; using "empirical" and "semi-empirical" methods, similar abundances are derived for 6 other GR 8 HII regions. Similar to previous results in other low metallicity galaxies, the mean log(N/O) = -1.53 +/- 0.09 for Leo A and -1.51 +/- 0.07 for GR 8. There is no evidence of significant variations in either O/H or N/O in the HII regions. The metallicity-luminosity relation for nearby (D oxygen abundances has a mean correlation of 12 + log(O/H) = 5.67 - 0.151 M_B with a dispersion in oxygen about the relationship of 0.21. These observations confirm that gas-rich low luminosity galaxies have extremely low elemental abundances in the ionized gas-phase of their interstellar media. Although Leo A has one of the lowest metal abundances of known nearby galaxies, detection of tracers of an older stellar population indicate that it is not a newly formed galaxy as has been proposed for some other similarly low metallicity star forming galaxies.

L. van Zee; E. D. Skillman; M. P. Haynes

2005-09-22T23:59:59.000Z

16

Quelques slides sur les gr n s dans la serie : "hangman game for dummies"  

E-Print Network [OSTI]

Quelques slides sur les gr n s dans la s´erie : "hangman game for dummies" Laurent LIFL, Universit´e Lille 1 - INRIA Journ´ees au vert 20 et 21 mai 2011 Laurent Quelques slides sur les gr n s #12;NGS://www.illumina.com/systems/miseq.ilmn Laurent Quelques slides sur les gr n s #12;Alors, de quoi vais-je bien pouvoir parler ? Laurent Quelques

Noé, Laurent

17

Il repertorio italiano del Ms Gr. Rs. Vm7 676 della Biblioteca Nazionale di Parigi.  

E-Print Network [OSTI]

??La tesi esamina il codice musicale Gr. Rs Vm7 676 della Biblioteca Nazionale di Parigi, che rappresenta una fonte di grande interesse per lo studio (more)

Luisi, Maria and#60;1969and#62

2012-01-01T23:59:59.000Z

18

Flares GRAVITY Relativistic simulations Conclusion Simulating observations to test GR at the  

E-Print Network [OSTI]

Flares GRAVITY Relativistic simulations Conclusion Simulating observations to test GR at the Galactic Center with GRAVITY GR19 Mexico Frédéric VINCENT1 Thibaut PAUMARD2 , Eric GOURGOULHON3 , Guy at the Galactic Center #12;Flares GRAVITY Relativistic simulations Conclusion 1 Sagittarius A* : a flaring black

Gourgoulhon, Eric

19

2011-2012 Student Advisory Council Department UN/GR Name E-Mail  

E-Print Network [OSTI]

@msu.edu GR Eric Wolf wolferi1@msu.edu Microbiology & Molecular Genetics UN Brian Lovett lovettbr@msu.edu GR.edu Associate Dean CNS Dr. Kathy Doig doig@msu.edu roache@msu.edu Dean CNS Dr. R. James Kirkpatrick rjkirk

20

Transcriptional functions of the corepressor Sin3A in skin  

E-Print Network [OSTI]

simultaneously recruit and displace specific sets of differentiation-specific transcriptional regulators to EDC genes. Among these factors, Sin3A acts as a transcriptional co-repressor and was initially discovered via its direct interaction with Mxi1 and Mxd1...

Cox, Claire

2013-03-12T23:59:59.000Z

Note: This page contains sample records for the topic "ba sin gr" 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

IS C O N SIN FUSION TECHNOLOGY INSTITUTE  

E-Print Network [OSTI]

· W IS C O N SIN · FUSION·T E CHNOLOGY · INSTITUTE FUSION TECHNOLOGY INSTITUTE UNIVERSITY Isotopes Using Inertial Electrostatic Confinement B.B. Cipiti Fusion Technology Institute University N was created using the 16 O(p,)13 N reaction from the oxygen in the water. Approximately 1.0 n

22

Intermediate Major Full Major BUSIBA.I Intmd Business BA ARTHBA Art History BA  

E-Print Network [OSTI]

Studies HBS GEOSBS Geoscience BSG ESS.BA Exercise & Sport Sci BA GEOSHBS Geoscience HSG ESS.BS Exercise & Sport Sci BS GERMBA German BA ESS.HBS Exercise & Sport Sci HBS GERMHBA German HBA ESS.BS.T Exercise

Tipple, Brett

23

Static post-Newtonian equivalence of GR and gravity with a dynamical preferred frame  

E-Print Network [OSTI]

A generally covariant extension of general relativity (GR) in which a dynamical unit timelike vector field is coupled to the metric is studied in the asymptotic weak field limit of spherically symmetric static solutions. The two post-Newtonian parameters known as the Eddington-Robertson-Schiff parameters are found to be identical to those in the case of pure GR, except for some non-generic values of the coefficients in the Lagrangian.

Christopher Eling; Ted Jacobson

2004-02-28T23:59:59.000Z

24

BA Philosophy, Politics and Law  

E-Print Network [OSTI]

BA Philosophy, Politics and Law (PPL) Module Information 2013-2014 Arts and Humanities College of www.swansea.ac.uk/artsandhumanities Department of Politcial and Cultural Studies #12;PPL at Swansea Swansea offers one of only two PPL degrees in the UK. Building on the successfully launch of our PPE

Harman, Neal.A.

25

Interplay Between Gravity and Quintessence A Set of New GR Solutions  

E-Print Network [OSTI]

A set of new exact analytical General Relativity (GR) solutions with time-dependent and spatially inhomogeneous quintessence demonstrate 1) a static non-empty space-time with a horizon-type singular surface; 2) time-dependent spatially homogeneous `spheres' which are completely different in geometry from the Friedmann isotropic models; 3) infinitely strong anti-gravity at a `true' singularity where the density is infinitely large. It is also found that 4) the GR solutions allow for an extreme `density-free' form of energy that can generate regular space-time geometries.

Chernin, A D; Silbergleit, A S; Chernin, Arthur D.; Santiago, David I.; Silbergleit, Alexander S.

2002-01-01T23:59:59.000Z

26

Gua Docente AS0001-GR0001-PR0001 Asignatura: lgebra lineal I  

E-Print Network [OSTI]

.1. Nombre / Course Title LGEBRA LINEAL I / LINEAR ALGEBRA I 1.2. Cdigo / Course Code 14894 1.3. Tipo1 de 5 Gua Docente AS0001-GR0001-PR0001 Asignatura: lgebra lineal I Cdigo: 14894 Grupo: 11 y 16 lineal I Cdigo: 14894 Grupo: 11 y 16 Titulacin: Fsicas Profesor/a: L. Contreras, L. Guijarro Curso

Guijarro, Luis

27

WASTE-TO-ENERGY RESEARCH & TECHNOLOGY COUNCIL www.wtert.gr PRESS RELEASE  

E-Print Network [OSTI]

WASTE-TO-ENERGY RESEARCH & TECHNOLOGY COUNCIL www.wtert.gr 1 PRESS RELEASE INTERNATIONAL INTENSIVE COURSE " Waste to Energy as an Integral Part of Sustainable Waste Management Worldwide: The case of Baku event focus on state of the art technologies for sustainable waste management, entitled "Waste to Energy

28

10/12/2009 www.wtert.gr 1 Waste-to-Energy Research and Technology Council  

E-Print Network [OSTI]

10/12/2009 www.wtert.gr 1 Waste-to-Energy Research and Technology Council SYNERGIA Dr. Efstratios MANAGEMENT IN GREECE & POTENTIAL FOR WASTE - TO - ENERGY ISWA Beacon Conference - Strategic Waste Management Planning in SEE, Middle East and Mediterranean Region #12;10/12/2009 www.wtert.gr 2 The Waste-to-Energy

Columbia University

29

BA Economics and BA Financial Economics Assessment Plan Program Learning Objectives  

E-Print Network [OSTI]

BA Economics and BA Financial Economics ­ Assessment Plan Program Learning Objectives The program will prepare graduates: 1. Understand the "economic way model economic decisions. 3. The ability to analyze historical and current events

Cantlon, Jessica F.

30

BaBar: Direct CPV Searches  

SciTech Connect (OSTI)

Some recent BaBar measurements of CP-violation charge asymmetries in B meson decays to charmless hadronic final states are presented.

Mir, L.M.; /LBL, Berkeley

2006-04-14T23:59:59.000Z

31

Standard Model expectations on sin2beta(phi_1) from b to s penguins  

E-Print Network [OSTI]

Recent results of the standard model expectations on sin2beta(phi_1) from penguin-dominated b to s decays are briefly reviewed.

Chun-Khiang Chua

2006-05-27T23:59:59.000Z

32

Academic Affairs Multidisciplinary Studies (BA) B700  

E-Print Network [OSTI]

of Architecture Architecture­5 year program (B Arch) B045 Architecture­Pre-Arch (BS in Env Des) B386 Construction Studies (BA) B875 College of Atmospheric & Geographic Sciences Environmental Sustainability (BA in Env Sustainability) Culture and Society B408 P161 Planning and Management B408 P516 Science and Natural Resources B

Oklahoma, University of

33

Setembro de 2014 Salvador/BA  

E-Print Network [OSTI]

PR?-ANAIS Setembro de 2014 Salvador/BA 16 a 19SIMP?SIO BRASILEIRO DE PESQUISA OPERACIONALSIMP?SIO; Manufacturing systems. Main area: MP - Probabilistic Models #12;PR?-ANAIS Setembro de 2014 Salvador/BA 16 a 19

Cruz, Frederico

34

Philosophy Honours (& BA Humanities and Social Science)  

E-Print Network [OSTI]

Philosophy Honours Handbook (& BA Humanities and Social Science) 2012/2013 Philosophy School of Philosophy, Psychology and Language Sciences University of Edinburgh #12;1 Philosophy Honours Handbook (& BA.......................................... 13 #12;2 1. Resources for Philosophy A complete list of the full-time academic staff in Philosophy

Edinburgh, University of

35

Geodesic Deviation Equation in GR equivalent theory of $f(T)$ gravity  

E-Print Network [OSTI]

In this work, we show that it is possible to study the GR equivalent notion of geodesic deviation in $f(T)$ gravity, in spite of the fact that in teleparallel gravity there is no notion of geodesics, and the torsion is responsible for the appearance of gravitational interaction. In this regard, we obtain the GR equivalent of $f(T)$ gravity whose equations are in the modified gravity form such as $f(R)$ gravity. Then, we obtain the GDE within the context of this modified gravity. In this way, the obtained geodesic deviation equation will correspond to the $f(T)$ gravity. Eventually, we extend the calculations to obtain the modification of Matting relation.

Darabi, F; Atazadeh, K

2015-01-01T23:59:59.000Z

36

Geodesic Deviation Equation in GR equivalent theory of $f(T)$ gravity  

E-Print Network [OSTI]

In this work, we show that it is possible to study the GR equivalent notion of geodesic deviation in $f(T)$ gravity, in spite of the fact that in teleparallel gravity there is no notion of geodesics, and the torsion is responsible for the appearance of gravitational interaction. In this regard, we obtain the GR equivalent of $f(T)$ gravity whose equations are in the modified gravity form such as $f(R)$ gravity. Then, we obtain the GDE within the context of this modified gravity. In this way, the obtained geodesic deviation equation will correspond to the $f(T)$ gravity. Eventually, we extend the calculations to obtain the modification of Matting relation.

F. Darabi; M. Mousavi; K. Atazadeh

2014-12-31T23:59:59.000Z

37

Ceramic Technology Project database: September 1990 summary report. [SiC, SiN, whisker-reinforced SiN, ZrO-toughened aluminas, zirconias, joints  

SciTech Connect (OSTI)

Data generated within the Ceramic Technology Project (CTP) represent a valuable resource for both research and industry. The CTP database was created to provide easy access to this information in electronic and hardcopy forms by using a computerized database and by issuing periodic hardcopy reports on the database contents. This report is the sixth in a series of semiannual database summaries and covers recent additions to the database, including joined brazed specimen test data. It covers 1 SiC, 34 SiN, 10 whisker-reinforced SiN, 2 zirconia-toughened aluminas, 8 zirconias, and 34 joints.

Keyes, B.L.P.

1992-06-01T23:59:59.000Z

38

E-Print Network 3.0 - apendicitis aguda sin Sample Search Results  

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

wavenumber vector are m k sin and l k cos... Research Letters, 32, DOI: 10.10292005GL022834, and is available online at ftp:agu.orgapendgl2005GL... the Fourier...

39

Spectroscopy of Ba and Ba$^+$ deposits in solid xenon for barium tagging in nEXO  

E-Print Network [OSTI]

Progress on a method of barium tagging for the nEXO double beta decay experiment is reported. Absorption and emission spectra for deposits of barium atoms and ions in solid xenon matrices are presented. Excitation spectra for prominent emission lines, temperature dependence and bleaching of the fluorescence reveal the existence of different matrix sites. A regular series of sharp lines observed in Ba$^+$ deposits is identified with some type of barium hydride molecule. Lower limits for the fluorescence quantum efficiency of the principal Ba emission transition are reported. Under current conditions, an image of $\\le10^4$ Ba atoms can be obtained. Prospects for imaging single Ba atoms in solid xenon are discussed.

B. Mong; S. Cook; T. Walton; C. Chambers; A. Craycraft; C. Benitez-Medina; K. Hall; W. Fairbank Jr.; J. B. Albert; D. J. Auty; P. S. Barbeau; V. Basque; D. Beck; M. Breidenbach; T. Brunner; G. F. Cao; B. Cleveland; M. Coon; T. Daniels; S. J. Daugherty; R. DeVoe; T. Didberidze; J. Dilling; M. J. Dolinski; M. Dunford; L. Fabris; J. Farine; W. Feldmeier; P. Fierlinger; D. Fudenberg; G. Giroux; R. Gornea; K. Graham; G. Gratta; M. Heffner; M. Hughes; X. S. Jiang; T. N. Johnson; S. Johnston; A. Karelin; L. J. Kaufman; R. Killick; T. Koffas; S. Kravitz; R. Krucken; A. Kuchenkov; K. S. Kumar; D. S. Leonard; C. Licciardi; Y. H. Lin; J. Ling; R. MacLellan; M. G. Marino; D. Moore; A. Odian; I. Ostrovskiy; A. Piepke; A. Pocar; F. Retiere; P. C. Rowson; M. P. Rozo; A. Schubert; D. Sinclair; E. Smith; V. Stekhanov; M. Tarka; T. Tolba; K. Twelker; J. -L. Vuilleumier; J. Walton; M. Weber; L. J. Wen; U. Wichoski; L. Yang; Y. -R. Yen; Y. B. Zhao

2014-10-09T23:59:59.000Z

40

Measuring Sin^22?_13 with the Daya Bay Nuclear Reactors  

E-Print Network [OSTI]

Angle \\theta_13 is one of the two unknown neutrino mixing parameters to be determined. Its value may determine the future trend of the neutrino physics. We propose to measure sin^22\\theta_13 with a sensitivity better than 0.01 (90% C.L) at the Daya Bay reactor power plant.

Yifang Wang

2006-10-09T23:59:59.000Z

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


41

ChampionSin the Classroom, in the Community, and in Competition HailtotHeBuff&Blue  

E-Print Network [OSTI]

Supporting ChampionSin the Classroom, in the Community, and in Competition #12;HailtotHeBuff&Blue, and the Buff & Blue Fund is the cornerstone of GW Athletics. Through the Buff & Blue Fund, donors are providing that, the Buff & Blue Fund represents: An athletic experience that mirrors the overall excellence of GW

Vertes, Akos

42

Validation of the coupled Eta/SSiB model over South America Sin Chan Chou  

E-Print Network [OSTI]

Validation of the coupled Eta/SSiB model over South America Sin Chan Chou Centro de Previsa~o de with the Simplified Simple Biosphere model (SSiB) over South America. The goal of the present work is to validate of the precipitation annual cycle observed in the central part of South America. The model was integrated continuously

Xue, Yongkang

43

The Omega Laser FaciLiTy Users grOUp WOrkshOp LLE Review, Volume 120 161  

E-Print Network [OSTI]

(NNSA) already allocated for student/postdoctoral travel expenses. #12;The Omega Laser FaciLiTy Users gr Administration (NNSA) mission. The next section of this article contains a summary of the range of presentations-two students and postdoctoral fellows (Fig. 120.2), 27 of whom were supported by travel grants from NNSA

44

Xavier Gr`acia _ Geometria Diferencial 2 _ Suplement d'`algebra _ 21 mar,c 2007* * 1  

E-Print Network [OSTI]

Xavier Gr`acia _ Geometria Diferencial 2 _ Suplement d'`algebra _ 21 mar,c 2007'o lineal "x:E manera s'obt'e una aplicaci'o linea* *l canSexemplesuinteressants,psobreose* *m que E t'e una base finita (ei). Llavors E*t'e l'anomenada base dual diverses q"uestions d'`algebra

Grcia, Xavier

45

Heat treatment temperature influence on ASTM A890 GR 6A super duplex stainless steel microstructure  

SciTech Connect (OSTI)

Duplex and super duplex stainless steels are ferrous alloys with up to 26% chromium, 8% nickel, 5% molybdenum and 0.3% nitrogen, which are largely used in applications in media containing ions from the halogen family, mainly the chloride ion (Cl{sup -}). The emergence of this material aimed at substituting Copper-Nickel alloys (Cupro-Nickel) that despite presenting good corrosion resistance, has mechanical properties quite inferior to steel properties. The metallurgy of duplex and super duplex stainless steel is complex due to high sensitiveness to sigma phase precipitation that becomes apparent, due to the temperatures they are exposed on cooling from solidification as well as from heat treatment processes. The objective of this study was to verify the influence of heat treating temperatures on the microstructure and hardness of ASTM A890/A890M Gr 6A super duplex stainless steel type. Microstructure control is of extreme importance for castings, as the chemical composition and cooling during solidification inevitably provide conditions for precipitation of sigma phase. Higher hardness in these materials is directly associated to high sigma phase concentration in the microstructure, precipitated in the ferrite/austenite interface. While heat treatment temperature during solution treatment increases, the sigma phase content in the microstructure decreases and consequently, the material hardness diminishes. When the sigma phase was completely dissolved by the heat treatment, the material hardness was influenced only due to ferrite and austenite contents in the microstructure.

Martins, Marcelo [SULZER BRASIL S/A - FUNDINOX DIVISION (Brazil); Centro Universitario Salesiano de Sao Paulo (Brazil); E-mail: marcelo.martins@sulzer.com; Casteletti, Luiz Carlos [Materials, Aeronautics and Automobiles Engineering Department at the Sao Carlos Engineering School of the Sao Paulo University (USP) (Brazil)

2005-09-15T23:59:59.000Z

46

Leak before break evaluation for main steam piping system made of SA106 Gr.C  

SciTech Connect (OSTI)

The basis of the leak before break (LBB) concept is to demonstrate that piping will leak significantly before a double ended guillotine break (DEGB) occurs. This is demonstrated by quantifying and evaluating the leak process and prescribing safe shutdown of the plant on the basis of the monitored leak rate. The application of LBB for power plant design has reduced plant cost while improving plant integrity. Several evaluations employing LBB analysis on system piping based on DEGB design have been completed. However, the application of LBB on main steam (MS) piping, which is LBB applicable piping, has not been performed due to several uncertainties associated with occurrence of steam hammer and dynamic strain aging (DSA). The objective of this paper is to demonstrate the applicability of the LBB design concept to main steam lines manufactured with SA106 Gr.C carbon steel. Based on the material properties, including fracture toughness and tensile properties obtained from the comprehensive material tests for base and weld metals, a parametric study was performed as described in this paper. The PICEP code was used to determine leak size crack (LSC) and the FLET code was used to perform the stability assessment of MS piping. The effects of material properties obtained from tests were evaluated to determine the LBB applicability for the MS piping. It can be shown from this parametric study that the MS piping has a high possibility of design using LBB analysis.

Yang, Kyoung Mo; Jee, Kye Kwang; Pyo, Chang Ryul; Ra, In Sik [Korea Power Engineering Company, Seoul (Korea, Republic of)

1997-04-01T23:59:59.000Z

47

Hadron Physics in BaBar  

SciTech Connect (OSTI)

Some recent results in hadron physics from the BaBar experiment are discussed. In particular, the observation of two new charmed states, the D*{sub sJ}{sup +}(2317) and the D*{sub sJ}{sup +}(2457), is described, and results are presented on the first measurement of the rare decay mode of the B meson, B{sup 0} {pi}{sup 0}{pi}{sup 0}.

Lafferty, G.D.; /Manchester U.

2005-08-29T23:59:59.000Z

48

New Spectroscopy at BaBar  

SciTech Connect (OSTI)

The Babar experiment at the SLAC B factory has accumulated a high luminosity that offers the possibility of systematic studies of quarkonium spectroscopy and of investigating rare new phenomena. Recent results in this field are presented. In recent times spectroscopy has become exciting again, after the discovery of new states that are not easily explained by conventional models. States such as the X(3872) and the Y(4260) could be new excited charmonium states, but require precise measurements for positive identification. The BaBar experiment [1] is installed at the asymmetric storage ring PEP-II. 90% of the data accumulated by BaBar are taken at the Y(4S) (10.58 GeV) and 10% just below (10.54 GeV). The BaBar detector includes a 5-layer, double-sided silicon vertex tracker and a 40-layer drift chamber in a 1.5 T solenoidal magnetic field, which detect charged particles and measures their momenta and ionization energy losses. Photons, electrons, and neutral hadrons are detected with a CsI(Tl)-crystal electromagnetic calorimeter. An internally reflecting ring-imaging Cherenkov is also used for particle id. Penetrating muon and neutral hadrons are identified by an array of resistive-plate chambers embedded in the steel of the flux return. The detector allows good track and vertex resolution, good particle id and good photon detection so it is especially suited for spectroscopy studies.

Mazzoni, M.A.; /INFN, Rome

2007-04-18T23:59:59.000Z

49

Foulger, G.R., Microearthquake Analysis Techniques For Geothermal Applications, EOS Trans. AGU, Fall Meet. Suppl., Abstract S32B-02 (invited), 2009.  

E-Print Network [OSTI]

urgency to develop renewable energy resources, including geothermal power, and in particular EnhancedFoulger, G.R., Microearthquake Analysis Techniques For Geothermal Applications, EOS Trans. AGU And Induced Microearthquakes Microearthquake Analysis Techniques For Geothermal Applications The increased

Foulger, G. R.

50

Effect of BaO Morphology on NOx Abatement: NO Interaction with...  

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

BaO Morphology on NOx Abatement: NO Interaction with Unsupported and O-Supported BaO. Effect of BaO Morphology on NOx Abatement: NO Interaction with Unsupported and O-Supported...

51

Preparation and combustion of coal-water fuel from the Sin Pun coal deposit, southern Thailand  

SciTech Connect (OSTI)

In response to an inquiry by the Department of Mineral Resources in Thailand, the Energy & Environmental Research Center (EERC) prepared a program to assess the responsiveness of Sin Pun lignite to the temperature and pressure conditions of hot-water drying. The results indicate that drying made several improvements in the coal, notably increases in heating value and carbon content and reductions in equilibrium moisture and oxygen content. The equilibrium moisture content decreased from 27 wt% for the raw coal to about 15 wt% for the hot-water-dried (HWD) coals. The energy density for a pumpable coal-water fuel (CWF) indicates an increase from 4500 to 6100 Btu/lb by hot-water drying. Approximately 650 lb of HWD Sin Pun CWF were fired in the EERC`s combustion test facility. The fuel burned extremely well, with no feed problems noted during the course of the test. Fouling and slagging deposits each indicated a very low rate of ash deposition, with only a dusty layer formed on the cooled metal surfaces. The combustor was operated at between 20% and 25% excess air, resulting in a flue gas SO{sub 2} concentration averaging approximately 6500 parts per million.

NONE

1997-05-01T23:59:59.000Z

52

FourYear Academic Plan 20122013 BA in Geology  

E-Print Network [OSTI]

FourYear Academic Plan 20122013 BA in Geology Internal Use Version Year 1 Year 2 Year 3 Year 4: Total UD Credits: 46 Total Credits: 120 3/19/12 #12;FourYear Academic Plan 20122013 BA in Geology

53

Roadmap: Paralegal Studies Bachelor of Arts [AS-BA-PLST  

E-Print Network [OSTI]

Roadmap: Paralegal Studies ­ Bachelor of Arts [AS-BA-PLST] College of Arts and Sciences Department of Sociology Catalog Year: 2013-2014 Page 1 of 3 | Last Updated: 7-May-13/LNHD This roadmap is a recommended on page 2 #12;Roadmap: Paralegal Studies ­ Bachelor of Arts [AS-BA-PLST] College of Arts and Sciences

Sheridan, Scott

54

Combined Honours BA Digital Journalism and Communication, Media, and Film  

E-Print Network [OSTI]

Combined Honours BA Digital Journalism and Communication, Media, and Film Are you looking in Digital Journalism (DJ) and Communication, Media, and Film (CMF) is for you. That's because our DJ Honours BA Digital Journalism and Communication, Media, and Film We look forward to meeting you! Student

55

ON THE MOTIVE OF A QUOTIENT VARIETY SEBASTIAN DEL BA ~  

E-Print Network [OSTI]

ON THE MOTIVE OF A QUOTIENT VARIETY SEBASTIAN DEL BA ~ NO ROLLIN AND VICENTE NAVARRO AZNAR En with the realization functors and Chow groups. Recently, in the case char k = 0, Guill'en and Navarro Aznar have given. DEL BA ~ NO ROLLIN AND V. NAVARRO AZNAR group, K 0 M k , these decompositions were considered by Denef

Politècnica de Catalunya, Universitat

56

Body-specific representations of spatial location Tad T. Bruny b,a,  

E-Print Network [OSTI]

Body-specific representations of spatial location Tad T. Brunyé b,a, , Aaron Gardony b,a , Caroline

Patel, Aniruddh D.

57

Radioactive contamination of BaF2 crystal scintillator  

E-Print Network [OSTI]

Barium fluoride (BaF$_2$) crystal scintillators are promising detectors to search for double beta decay processes in $^{130}$Ba ($Q_{2{\\beta}}$ = 2619(3) keV) and $^{132}$Ba ($Q_{2{\\beta}}$ = 844(1) keV). The $^{130}$Ba isotope is of particular interest because of the indications on 2${\\beta}$ decay found in two geochemical experiments. The radioactive contamination of BaF$_2$ scintillation crystal with mass of 1.714 kg was measured over 113.4 hours in a low-background DAMA/R&D set-up deep underground (3600 m w.e.) at the Gran Sasso National Laboratories of INFN (LNGS, Italy). The half-life of $^{212}$Po (present in the crystal scintillator due to contamination by radium) was estimated as $T_{1/2}$ = 298.8 $\\pm$ 0.8(stat.) $\\pm$ 1.4(syst.) ns by analysis of the events pulse profiles.

O. G. Polischuk; P. Belli; R. Bernabei; F. Cappella; V. Caracciolo; R. Cerulli; A. Di Marco; F. A. Danevich; A. Incicchitti; D. V. Poda; V. I. Tretyak

2013-12-17T23:59:59.000Z

58

Radioactive contamination of BaF2 crystal scintillator  

E-Print Network [OSTI]

Barium fluoride (BaF$_2$) crystal scintillators are promising detectors to search for double beta decay processes in $^{130}$Ba ($Q_{2{\\beta}}$ = 2619(3) keV) and $^{132}$Ba ($Q_{2{\\beta}}$ = 844(1) keV). The $^{130}$Ba isotope is of particular interest because of the indications on 2${\\beta}$ decay found in two geochemical experiments. The radioactive contamination of BaF$_2$ scintillation crystal with mass of 1.714 kg was measured over 113.4 hours in a low-background DAMA/R&D set-up deep underground (3600 m w.e.) at the Gran Sasso National Laboratories of INFN (LNGS, Italy). The half-life of $^{212}$Po (present in the crystal scintillator due to contamination by radium) was estimated as $T_{1/2}$ = 298.8 $\\pm$ 0.8(stat.) $\\pm$ 1.4(syst.) ns by analysis of the events pulse profiles.

Polischuk, O G; Bernabei, R; Cappella, F; Caracciolo, V; Cerulli, R; Di Marco, A; Danevich, F A; Incicchitti, A; Poda, D V; Tretyak, V I

2013-01-01T23:59:59.000Z

59

B.A and B.S. in Mathematics Program B.A. and B.S. Mathematics  

E-Print Network [OSTI]

B.A and B.S. in Mathematics Program B.A. and B.S. Mathematics Department(s) Mathematical Sciences.A. in the Mathematical Sciences will... 1. Demonstrate a solid understanding of differential (1A), integral (1B understanding of rigorous mathematical proof (reading and writing), and apply reasoning based on definitions

Hemmers, Oliver

60

Page 1 | B.A. in Chemistry | Academic Plan of Study Updated April 2014 B.A. in Chemistry  

E-Print Network [OSTI]

Page 1 | B.A. in Chemistry | Academic Plan of Study Updated April 2014 B.A. in Chemistry Academic Plan of Study College of Liberal Arts & Sciences Department of Chemistry chemistry.uncc.edu PROGRAM to declare the major. · Advising (For the Major): completed by your chemistry faculty advisor (please refer

Raja, Anita

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


61

Recent results of. mu. CF experiments at SIN (Swiss Institute For Nuclear Research)  

SciTech Connect (OSTI)

Important topics concerning Muon Catalyzed Fusion were investigated in experiments at the Swiss Institute for Nuclear Research (SIN), including transient and steady state rates for the main d..mu..t cycle as well as detailed information about the competing d..mu..d and t..mu..t fusion branches. The basic kinetic parameters were determined and striking features of the resonant d..mu..t formation process were revealed (density effect, epithermal behavior). DT sticking was measured with independent techniques, i.e., detection of fusion neutrons as well as ..mu..He x-rays after fusion. Fusion yields per muon of 113 +- 10 were observed at liquid conditions, yields exceeding 200 are anticipated for optimal conditions from our results. 43 refs., 8 figs., 3 tabs.

Breunlich, W.H.; Cargnelli, M.; Bistirlich, J.; Crowe, K.M.; Justice, M.; Kurck, J.; Petitjean, C.; Sherman, R.H.; Bossy, H.; Daniel, H.

1986-09-01T23:59:59.000Z

62

Physical properties of single crystalline BaSn{sub 5}  

SciTech Connect (OSTI)

We present a comprehensive study of the binary intermetallic superconductor, BaSn{sub 5}. High-quality single crystalline BaSn{sub 5} was grown out of a Sn flux. Detailed thermodynamic and transport measurements were performed to study BaSn{sub 5}'s normal and superconducting state properties. This material appears to be a strongly coupled, multiband superconductor. H{sub c2}(T) is almost isotropic. De Haasvan Alphen oscillations were observed and two effective masses were estimated from the FFT spectra. Hydrostatic pressure causes a decrease in the superconducting transition temperature at the rate of ??0.053??0.001?K/kbar.

Lin, Xiao; Budko, Sergey; Canfield, Paul

2012-01-30T23:59:59.000Z

63

Water-induced Bulk Ba(NO3)2 Formation From NO2 Exposed Thermally...  

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

Bulk Ba(NO3)2 Formation From NO2 Exposed Thermally Aged BaOAl2O3. Water-induced Bulk Ba(NO3)2 Formation From NO2 Exposed Thermally Aged BaOAl2O3. Abstract: Phase changes in high...

64

D0-D0 Mixing at BaBar  

E-Print Network [OSTI]

The BaBar and Belle collaborations have recently found evidence for mixing within the D meson system. We present some of the mixing search techniques used by BaBar and their status as of the beginning of the summer 2007. These have culminated in a measurement in the K decay final state of the D that is inconsistent with the no-mixing hypothesis with a significance of 3.9 standard deviations.

A. Seiden

2007-10-05T23:59:59.000Z

65

Local mechanical properties of Alloy 82/182 dissimilar weld joint between SA508 Gr.1a and F316 SS at RT and 320C  

SciTech Connect (OSTI)

This paper presents the variations of local mechanical and microstructural properties in dissimilar metal weld joints consisting of the SA508 Gr.1a ferritic steel, Alloy 82/182 filler metal, and F316 austenitic stainless steel. Flat or round tensile specimens and transmission electron microscopy disks were taken from the base metals, welds, and heat-affected zones (HAZ) of the joints and tested at room temperature (RT) and/or at 320 C. The tensile test results indicated that the mechanical property was relatively uniform within each material zone, but varied considerably between different zones. Further, significant variations were observed both in the austenitic HAZ of F316 SS and in the ferritic HAZ of SA508 Gr.1a. The yield stress (YS) of the weld metal was under-matched with respect to the HAZs of SA508 Gr.1a and F316 SS by 0.78 to 0.92, although the YS was over-matched with respect to both base metals. The minimum ductility occurred in the HAZ of SA508 Gr.1 at both test temperatures. The plastic instability stress also varied considerably in the weld joints, with minimum values occurring in the SA508 Gr.1a base metal at RT and in the HAZ of F316 SS at 320 C, suggesting that the probability of ductile failure caused by a unstable deformation at the Alloy 82/182 buttering layer is low. Within the HAZ of SA508 Gr.1a, the gradient of the YS and ultimate tensile strength (UTS) was significant, primarily because of the different microstructures produced by the phase transformation during the welding process. The increment of YS was unexpectedly high in the HAZ of F316 SS, which was explained by the strain hardening induced by a strain mismatch between the weldment and the base metal. This was confirmed by the transmission electron micrographs showing high dislocation density in the HAZ.

Byun, Thak Sang [ORNL; Kim, Jin Weon [ORNL

2009-01-01T23:59:59.000Z

66

Leptonic B Decays at BaBar  

SciTech Connect (OSTI)

The authors will present the most recent results on leptonic B decays B{sup {+-}(0)} {yields} K*{sup {+-}(0)} {nu}{bar {nu}} and B{sup {+-}} {yields} {mu}{sup {+-}}{nu}, based on the data collected by the BaBar detector at PEP-II, an asymmetric e{sup +}e{sup -} collider at the center of mass energy of the {Upsilon}(4S) resonance. Rare B decays have always been a standard probe for New Physics (NP) searches. The very low Standard Model (SM) rate of these decays often make them unaccessible with the present experimental datasets, unless NP effects enhance the rate up to the current experimental sensitivity. Moreover, as NP effects can modify the decay kinematic, particular attention must be payed in order to perform a model independent analysis. A B-Factory provides an unique environment where to investigate these processes. The high number of B{bar B} pairs produced by a B-Factory often allows to approach the needed experimental sensitivity. Moreover, the clean environment and the closed kinematic of the initial state enable to obtaining a very pure sample where to look for these decays.

Monorchio, Diego; /INFN, Naples /Naples U.

2011-09-13T23:59:59.000Z

67

Page 1 | B.A. in Middle Grades Education | Academic Plan of Study Updated March 2014 B.A. in Middle Grades Education  

E-Print Network [OSTI]

Page 1 | B.A. in Middle Grades Education | Academic Plan of Study Updated March 2014 B.A. in Middle 2 | B.A. in Middle Grades Education | Academic Plan of Study Updated March 2014 Middle Grades Grades Education Academic Plan of Study College of Education Department of Middle, Secondary and K-12

Raja, Anita

68

The Determination of sin{sup 2} {theta}{sub W} in Neutrino Scattering: no more anomaly  

SciTech Connect (OSTI)

We review the corrections to the NuTeV determination of sin{sup 2} {theta}{sub W}, concluding that it is no longer appropriate to present it as an ''anomaly''. Indeed, when well understood corrections associated with charge symmetry violation and the iso-vector nuclear force are properly included, the measurement is completely consistent with the Standard Model.

Thomas, A. W. [ARC Centre of Excellence in Particle Physics at the Tera-scale (CoEPP) and CSSM, School of Chemistry and Physics, University of Adelaide, Adelaide SA 5005 (Australia)

2011-12-14T23:59:59.000Z

69

Distributed delay model for density wave dynamics in gas lifted wells Laure Sin`egre, Nicolas Petit  

E-Print Network [OSTI]

Distributed delay model for density wave dynamics in gas lifted wells Laure Sin`egre, Nicolas Petit in the tubing D. dynamical choking is used to stabilise the density wave instability. In this paper, we propose instabilities cause production losses. One of these instabilities, referred to as the "density-wave

70

Studiengang Bachelor Studiengangsmoderator Zugangsinformationen Unterrichtssprache Fakultt Afrikanische Sprachen, Literaturen und Kunst B.A. Prof. D. Ibriszimow Deutsch 4  

E-Print Network [OSTI]

A Afrikanische Sprachen, Literaturen und Kunst B.A. Prof. D. Ibriszimow Deutsch 4 Angewandte Informatik B.A. Prof. D. Henrich Deutsch 1 Anglistik B.A. Prof. M. Steppat Deutsch 4 B Berufliche Bildung, Fachrichtung Metalltechnik B.A. Prof. U. Glatzel Deutsch Betriebswirtschaftslehre B.A. Prof. J. Sigloch Numerus Clausus

Schmidt, Matthias

71

Bachelor of Arts in Biology (BA) Checksheet: 126 hours Department of Biology, Georgia Southern University  

E-Print Network [OSTI]

), GEOL 1110 - Earth Lab (1) Evolution & Ecology Elective (3-4 hrs) (Level 3000 and above) Area D2 Elective (3-4 hrs) (Level 3000 and above) Area D3: Math, Science or Technology Elect. (3-4 hrs) MATH 1441 University Name: Starting Date: Eagle ID: Curriculum: Term Gr Term Gr Area A: Essential Skills (9 hrs)** Area

Hutcheon, James M.

72

WASTE-TO-ENERGY RESEARCH & TECHNOLOGY COUNCIL www.wtert.gr Pre-feasibility study of a Solid Recovered Fuel (SRF) WTE Power Plant in  

E-Print Network [OSTI]

WASTE-TO-ENERGY RESEARCH & TECHNOLOGY COUNCIL www.wtert.gr 1 Pre-feasibility study of a Solid Recovered Fuel (SRF) WTE Power Plant in North Greece Presentation by Dr. Efstratios Kalogirou, 5 PM Friday of WTERT-Greece / SYNERGIA A pre-feasibility study will be presented of a state-of-the-art WTE power plant

73

S:\\Registration & Records\\Term Communications\\2014 Fall\\GR Fall 2014 WEB Instructions.docx 1 of 2 JOHNS HOPKINS UNIVERSITY  

E-Print Network [OSTI]

. Sign In and enter your JHED ID and password 3. Point to Registration 4. Click on Search for Classes/Registration 5. Select the academic period Fall 2014, enter the course number, and then click Search 6S:\\Registration & Records\\Term Communications\\2014 Fall\\GR Fall 2014 WEB Instructions.docx 1 of 2

Weaver, Harold A. "Hal"

74

S:\\Registration & Records\\Term Communications\\2013 Fall\\FA 13 NEW GR Registration.docx page 1 of 2 JOHNS HOPKINS UNIVERSITY  

E-Print Network [OSTI]

. Select the academic period (Fall 2013), enter the course number, and then click Search 6. To choose yourS:\\Registration & Records\\Term Communications\\2013 Fall\\FA 13 NEW GR Registration.docx page 1 of 2 your JHED ID, go to my.jhu.edu and search under "People" (upper right hand side). Type in your name

Weaver, Harold A. "Hal"

75

S:\\Registration & Records\\Term Communications\\2012 Fall\\GR Fall 2012 WEB Instructions.docx 1 of 2 JOHNS HOPKINS UNIVERSITY  

E-Print Network [OSTI]

the academic period Fall 2013, enter the course number, and then click Search 6. To choose your preferredS:\\Registration & Records\\Term Communications\\2012 Fall\\GR Fall 2012 WEB Instructions.docx 1 of 2 to complete whatever transactions you wish to process.) 1. Go to isis.jhu.edu 2. Sign In and enter your JHED

Weaver, Harold A. "Hal"

76

Deputy Head: Dr I.E. Stamatelatos, Physicist (MSc, PhD), Researcher A' ion(at)ipta.demokritos.gr 2106503712 2106533431  

E-Print Network [OSTI]

Radiation damage in SiC/SiC fusion materials Porosity of graphites by neutron scattering techniques(at)ipta.demokritos.gr 2106503712 2106533431 R&D activities at Research Reactor Laboratory: uclear Technology & Radiation Protection optical devices Neutron detection electronics Neutron monochromatization Automation and control of micro

77

C. Rdiger, J.P. Walker, J.D. Kalma, G.R. Willgoose, and P.R. Houser (2004), Streamflow data assimilation: A study on nested catchments,  

E-Print Network [OSTI]

assimilation: A study on nested catchments, in Proceedings of the 2nd international CAHMDA workshop on: The Ter.P. Walker1, J.D. Kalma2, G.R. Willgoose3, and P.R. Houser4 1Dept. of Civil and Environmental Engineering "observations" and the evaluation data. The initial conditions and land surface forcing data are then degraded

Walker, Jeff

78

Distributed Online Conditions Database of the BaBar Experiment  

SciTech Connect (OSTI)

This paper presents CDB - The distributed Conditions Database of the BaBar Experiment. CDB is the second major iteration of the database deployed in BaBar for production use as of October 2002. It replaced the original version of the database used through the first three years of the data taking. The new design and its implementation aims to improve the performance and scalability of the original database and addresses the emerging challenges of the distributed data production and analysis system of the Experiment.

Khan, A.; /Brunel U.; Gaponenko, I.A.; Brown, D.N.; /LBL, Berkeley

2011-11-21T23:59:59.000Z

79

BaTiO? based materials for piezoelectric and electro-optic applications  

E-Print Network [OSTI]

Ferroelectric materials are key to many modem technologies, in particular piezoelectric actuators and electro-optic modulators. BaTiO? is one of the most extensively studied ferroelectric materials. The use of BaTiO? for ...

Avrahami, Ytshak, 1969-

2003-01-01T23:59:59.000Z

80

E-Print Network 3.0 - apada em salvador-ba Sample Search Results  

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

do IguauPR Edgar Franco Gomes Medicina Veterinaria SalvadorBA Iraci... Costa Lopes Quimica So PauloSP Ana Gabriela de Oliveira Sardinha Cincias Naturais SalvadorBA...

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


81

Water-induced morphology changes in BaO/?-Al2O3 NOx storage...  

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

materials. Water-induced morphology changes in BaO?-Al2O3 NOx storage materials. Abstract: Exposure of NO2-saturated BaO?-Al2O3 NOx storage materials to H2O vapour...

82

Excellent Sulfur Resistance of Pt/BaO/CeO2 Lean NOx Trap Catalysts...  

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

NOx Trap Catalysts. Excellent Sulfur Resistance of PtBaOCeO2 Lean NOx Trap Catalysts. Abstract: In this work, we investigated the NOx storage behavior of Pt-BaOCeO2 catalysts,...

83

Morphology and Composition cycle of BaO/Al2O3 NSR Catalysts during...  

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

0 290 310 330 350 370 Chemical shiftppm 20wt% BaOAl2O3 Al2O3 8wt% BaOAl2O3 313 337 340.5 Morphology and Composition cycle of BaOAl 2 O 3 NSR Catalysts during NO 2 Uptake and...

84

BA in ECONOMICS (736020) MAP Sheet Department of Economics  

E-Print Network [OSTI]

BA in ECONOMICS (736020) MAP Sheet Department of Economics For students entering the degree program The Economics Department requires a minimum of 21 hours in the major to be taken in residency at BYU courses: complete the following with a grade of C- or better: Econ 110* Economics Principles and Problems

Olsen Jr., Dan R.

85

BA in ECONOMICS (736020) MAP Sheet Department of Economics  

E-Print Network [OSTI]

BA in ECONOMICS (736020) MAP Sheet Department of Economics For students entering the degree program from approved list from approved list Econ 110* from approved list personal choice The Economics: complete the following with a grade of C- or better: Econ 110* Economics Principles and Problems Econ 378

Olsen Jr., Dan R.

86

Structural phase transitions in BaPrO{sub 3}  

SciTech Connect (OSTI)

The crystal structures adopted by BaPrO{sub 3} at and above ambient temperature have been examined using a combination of synchrotron X-ray and neutron diffraction. BaPrO{sub 3} has been established to undergo a series of phase transitions from Pbnmorthorhombic{yields}Ibmmorthorhombic{yields}R3-bar crhombohedral{yields}Pm3-barm cubic. BaPrO{sub 3} is the second A{sup 2+}B{sup 4+}O{sub 3} perovskite found to adopt rhombohedral symmetry in preference to the I4/mcm tetragonal structure. Analysis of the octahedral tilting through the rhombohedral to cubic phase transition indicates that this transformation is continuous and tricritical in nature. The tricritical behaviour of this transition is likely to be a result of the competition between tetragonal and rhombohedral structures to be the preferred phase, with the rhombohedral symmetry adopted by BaPrO{sub 3} being stabilised by the unusually large B-site cation.

Saines, Paul J. [School of Chemistry, University of Sydney, Sydney, New South Wales 2006 (Australia); Kennedy, Brendan J. [School of Chemistry, University of Sydney, Sydney, New South Wales 2006 (Australia)], E-mail: b.kennedy@chem.usyd.edu.au; Smith, Ronald I. [ISIS Facility, Rutherford Appleton Laboratory, Chilton, Harwell Science and Innovation Campus, Didcot OX11 0QX (United Kingdom)

2009-04-02T23:59:59.000Z

87

BA Political Science Assessment Plan Program Learning Goals  

E-Print Network [OSTI]

BA Political Science ­ Assessment Plan Program Learning Goals Undergraduate students gain familiarity with American political behavior and institutions, the nature of politics in the rest of the world, and the sources of international conflict and cooperation. All students majoring in political science take

Cantlon, Jessica F.

88

Measurements of Form Factors with the BaBar Experiment  

SciTech Connect (OSTI)

Selected recent results on measurements of form factors by the BaBar Collaboration are reviewed, including e{sup +}e{sup -} {yields} {eta}{prime}{gamma}, leptonic and semileptonic charm decays from data collected at or near the {Upsilon}(4S) resonance.

Li, Selina Z.; /SLAC

2011-08-25T23:59:59.000Z

89

Roadmap: Philosophy -Bachelor of Arts [AS-BA-PHIL  

E-Print Network [OSTI]

Roadmap: Philosophy - Bachelor of Arts [AS-BA-PHIL] College of Arts and Sciences Department of Philosophy Catalog Year: 2013-2014 Page 1 of 3 | Last Updated: 22-Apr-13/LNHD This roadmap is a recommended Credit Hours] PHIL 11001 Introduction to Philosophy or PHIL11009 Principles of Thinking 3 Both courses

Sheridan, Scott

90

Roadmap: English Bachelor of Arts [AS-BA-ENG  

E-Print Network [OSTI]

Roadmap: English ­ Bachelor of Arts [AS-BA-ENG] College of Arts and Sciences Department of English Catalog Year: 2013-2014 Page 1 of 4 | Last Updated: 7-May-13/LNHD This roadmap is a recommended semester 5 on page 3 General Electives (upper division) 6 #12;Roadmap: English ­ Bachelor of Arts [AS

Sheridan, Scott

91

Roadmap: Art History Bachelor of Arts [CA-BA-ARTH  

E-Print Network [OSTI]

Roadmap: Art History ­ Bachelor of Arts [CA-BA-ARTH] College of the Arts School of Art Catalog Year: 2013­2014 Page 1 of 2 | Last Updated: 30-Apr-13/JS This roadmap is a recommended semester Elective (upper division) 3 Minor Requirements or General Electives 9 See note 2 on page 2 #12;Roadmap

Sheridan, Scott

92

Roadmap: Art History Bachelor of Arts [CA-BA-ARTH  

E-Print Network [OSTI]

Roadmap: Art History ­ Bachelor of Arts [CA-BA-ARTH] College of the Arts School of Art Catalog Year: 2012­2013 Page 1 of 2 | Last Updated: 29-May-12/JS This roadmap is a recommended semester Elective (upper division) 3 Minor Requirements or General Electives 9 See note 2 on page 2 #12;Roadmap

Sheridan, Scott

93

Roadmap: Biology -Bachelor of Arts [AS-BA-BSCI  

E-Print Network [OSTI]

Roadmap: Biology - Bachelor of Arts [AS-BA-BSCI] College of Arts and Sciences Department of Biological Sciences Catalog Year: 2012­2013 Page 1 of 3 | Last Updated: 2-May-12/LNHD This roadmap hours and minimum 42 upper- division credit hours #12;Roadmap: Biology - Bachelor of Arts [AS

Sheridan, Scott

94

B.A. DEGREE REQUIREMENTS FOR CHEMISTRY (CHEMISTRY TRACK)  

E-Print Network [OSTI]

B.A. DEGREE REQUIREMENTS FOR CHEMISTRY (CHEMISTRY TRACK) Requirements include 36 credits in chemistry core courses, 32 of which are taken in specific courses. Each student's course of study includes the following: 1.) Required Chemistry Core Courses CHE 106: General Chemistry Lecture I (3) CHE 116: General

Doyle, Robert

95

Roadmap: Chemistry Bachelor of Arts [AS-BA-CHEM  

E-Print Network [OSTI]

Roadmap: Chemistry ­ Bachelor of Arts [AS-BA-CHEM] College of Arts and Sciences Department of Chemistry and Biochemistry Catalog Year: 2012­2013 Page 1 of 3 | Last Updated: 24-May-12/LNHD This roadmap One: [15 Credit Hours] CHEM 10060 General Chemistry I or CHEM 10960 Honors General Chemistry 4

Sheridan, Scott

96

MAJOR TO CAREER GUIDE B.A. Chemistry  

E-Print Network [OSTI]

MAJOR TO CAREER GUIDE B.A. Chemistry College of Sciences www.unlv.edu/chemistry Mission of the College of Sciences The College of Sciences offers programs in life sciences, chemistry, geoscience: 702-895-2077 Campus Location: MPE-A 130 www.unlv.edu/sciences/advising About the Chemistry Career

Walker, Lawrence R.

97

Roadmap: Chemistry Bachelor of Arts [AS-BA-CHEM  

E-Print Network [OSTI]

Roadmap: Chemistry ­ Bachelor of Arts [AS-BA-CHEM] College of Arts and Sciences Department of Chemistry and Biochemistry Catalog Year: 2013-2014 Page 1 of 3 | Last Updated: 1-May-13/LNHD This roadmap One: [15 Credit Hours] CHEM 10060 General Chemistry I (4) and CHEM 10062 General Chemistry I

Sheridan, Scott

98

Combined Honours BA Digital Journalism and Communication, Media, and Film  

E-Print Network [OSTI]

Combined Honours BA Digital Journalism and Communication, Media, and Film Are you looking in Digital Journalism (DJ) and Communication, Media, and Film (CMF) is for you. That's because our DJ for a career combining your interests in media with a practical skill-set? If so, the Combined Honours program

99

Superconductivity in gallium-substituted Ba8Si46 clathrates  

E-Print Network [OSTI]

superconductor, with an onset at T-C approximate to 3.3 K. For x=10 and higher, no superconductivity was observed down to T=1.8 K. This represents a strong suppression of superconductivity with increasing Ga content, compared to Ba8Si46 with T-C approximate to 8...

Li, Yang; Zhang, Ruihong; Liu, Yang; Chen, Ning; Luo, Z. P.; Ma, Xingqiao; Cao, Guohui; Feng, Z. S.; Hu, Chia-Ren; Ross, Joseph H., Jr.

2007-01-01T23:59:59.000Z

100

Hysteretic electrical transport in BaTiO{sub 3}/Ba{sub 1?x}Sr{sub x}TiO{sub 3}/Ge heterostructures  

SciTech Connect (OSTI)

We present electrical transport measurements of heterostructures comprised of BaTiO{sub 3} and Ba{sub 1?x}Sr{sub x}TiO{sub 3} epitaxially grown on Ge. Sr alloying imparts compressive strain to the BaTiO{sub 3}, which enables the thermal expansion mismatch between BaTiO{sub 3} and Ge to be overcome to achieve c-axis oriented growth. The conduction bands of BaTiO{sub 3} and Ba{sub 1?x}Sr{sub x}TiO{sub 3} are nearly aligned with the conduction band of Ge, which facilitates electron transport. Electrical transport measurements through the dielectric stack exhibit rectifying behavior and hysteresis, where the latter is consistent with ferroelectric switching.

Ngai, J. H.; Kumah, D. P.; Walker, F. J. [Department of Applied Physics and Center for Research on Interface Structures and Phenomena, Yale University, 15 Prospect Street, New Haven, Connecticut 06520-8284 (United States); Ahn, C. H. [Department of Applied Physics and Center for Research on Interface Structures and Phenomena, Yale University, 15 Prospect Street, New Haven, Connecticut 06520-8284 (United States); Department of Mechanical Engineering and Materials Science, Yale University, 10 Hillhouse Avenue, New Haven, Connecticut 06520-8267 (United States)

2014-02-10T23:59:59.000Z

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


101

Ainsi, gr^ace au th eor eme 47, est satisfaisable ssi l'ensemble des abrres a branchement au plus d reconnus par  

E-Print Network [OSTI]

Ainsi, gr^ace au th#19;eor#18;eme 47, #30; est satisfaisable ssi l'ensemble des abrres #18;a branchement born#19;e est PTIME-complet. Preuve: Comme dans la preuve du th#19;eor#18;eme 40, on ram#18;ene en'appartenance #18;a DEXPTIME, il su?t d'enchainer les r#19;esultats qui pr#19;ec#18;edent : lemme 49, th#19;eor#18

Comon-Lundh, Hubert

102

S:\\Registration & Records\\Term Communications\\GR Creating Your JHED-Outlook Live.docx 1 of 1 Johns Hopkins University  

E-Print Network [OSTI]

S:\\Registration & Records\\Term Communications\\GR Creating Your JHED-Outlook Live.docx 1 of 1 Johns-mail help@jhmi.edu 1. Go to CREATE YOUR JHED PASSWORD: my.jhu.edu 2. Click First time JHED user? 3. Enter. Do not try to search for yourself! If you have not received the email "Your Johns Hopkins JHED Login

Weaver, Harold A. "Hal"

103

The FiFTh Omega Laser FaciLiTy Users grOUp WOrkshOp LLE Review, Volume 136 237  

E-Print Network [OSTI]

in high-energy-density physics. The next annual OLUG Workshop will occur 23­25 April 2014. U1627JR #12;TheThe FiFTh Omega Laser FaciLiTy Users grOUp WOrkshOp LLE Review, Volume 136 237 Introduction of high-energy- density physics and is also one of the most active. The first two mornings of the workshop

104

GR via Characteristic Surfaces  

E-Print Network [OSTI]

We reformulate the Einstein equations as equations for families of surfaces on a four-manifold. These surfaces eventually become characteristic surfaces for an Einstein metric (with or without sources). In particular they are formulated in terms of two functions on R4xS2, i.e. the sphere bundle over space-time, - one of the functions playing the role of a conformal factor for a family of associated conformal metrics, the other function describing an S2's worth of surfaces at each space-time point. It is from these families of surfaces themselves that the conformal metric - conformal to an Einstein metric - is constructed; the conformal factor turns them into Einstein metrics. The surfaces are null surfaces with respect to this metric.

Simonetta Frittelli; Carlos Kozameh; Ted Newman

1995-02-11T23:59:59.000Z

105

G-r  

Office of Legacy Management (LM)

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) "ofEarlyEnergyDepartment ofDepartment ofof EnergyYou$ EGcG ENERGYELIkNATION REPORTFairfield,? . - G F+ '

106

Page 1 | B.A. in Earth Sciences | Academic Plan of Study Updated March 2014 B.A. in Earth Sciences  

E-Print Network [OSTI]

Page 1 | B.A. in Earth Sciences | Academic Plan of Study Updated March 2014 B.A. in Earth Sciences Academic Plan of Study College of Liberal Arts & Sciences Department of Geography & Earth Sciences geoearth. · Minimum Grades/GPA: minimum GPA is 2.0 · Teacher Licensure: YES in Earth Sciences. Students preparing

Raja, Anita

107

Page 1 | B.A. in Earth Sciences | Academic Plan of Study Updated April 2014 B.A. in Earth Sciences  

E-Print Network [OSTI]

Page 1 | B.A. in Earth Sciences | Academic Plan of Study Updated April 2014 B.A. in Earth Sciences Academic Plan of Study College of Liberal Arts & Sciences Department of Geography & Earth Sciences geoearth. · Minimum Grades/GPA: minimum GPA is 2.0 · Teacher Licensure: YES in Earth Sciences. Students preparing

Raja, Anita

108

Page 1 | B.A. in Special Education General Curriculum | Academic Plan of Study Updated May 2014 B.A. in Special Education (General Curriculum)  

E-Print Network [OSTI]

Page 1 | B.A. in Special Education ­ General Curriculum | Academic Plan of Study Updated May 2014 B.A. in Special Education (General Curriculum) Academic Plan of Study College of Education Department of Special Education and Child Development http://spcd.uncc.edu/ PROGRAM SUMMARY · Credit Hours: 120 hours

Raja, Anita

109

Page 1 | B.A. in Elementary Education | Academic Plan of Study Updated March 2014 B.A. in Elementary Education  

E-Print Network [OSTI]

Page 1 | B.A. in Elementary Education | Academic Plan of Study Updated March 2014 B.A. in Elementary Education Academic Plan of Study College of Education Department of Reading and Elementary Education education.uncc.edu/reel PROGRAM SUMMARY · Credit Hours: 120-121 · Concentrations: No · Declaring

Raja, Anita

110

Structural and chemical characterization of BaTiO{sub 3} nanorods  

SciTech Connect (OSTI)

Research highlights: {yields} Polycrystalline BaTiO{sub 3} nanorods were synthesized with EPD into AAO templates. {yields} Nanorods are composed of crystalline, nanosized grains with pseudo-cubic structure. {yields} Integrowth of hexagonal BaTiO{sub 3} polymorph within pseudo-cubic structure was observed. -- Abstract: An electron-microscopy investigation was performed on BaTiO{sub 3} nanorods that were processed by sol-gel electrophoretic deposition (EPD) into anodic aluminium oxide (AAO) membranes. The BaTiO{sub 3} nanorods grown within the template membranes had diameters ranging from 150 to 200 nm, with an average length of 10-50 {mu}m. By using various electron-microscopy techniques we showed that the processed BaTiO{sub 3} nanorods were homogeneous in their chemical composition. The BaTiO{sub 3} nanorods were always polycrystalline and were composed of well-crystallized, defect-free, pseudo-cubic BaTiO{sub 3} grains, ranging from 10 to 30 nm. No intergranular phases were observed between the BaTiO{sub 3} grains. A low-temperature hexagonal polymorph that is coherently intergrown with the BaTiO{sub 3} perovskite matrix was also observed as a minor phase. When annealing the AAO templates containing the BaTiO{sub 3} sol in an oxygen atmosphere the presence of the hexagonal polymorph was diminished.

Zagar, K.; Recnik, A.; Sturm, S. [Department for Nanostructured Materials, Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia)] [Department for Nanostructured Materials, Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia); Gajovic, A. [Molecular Physics Laboratory, Division of Materials Physics, Ruder Boskovic Institute, Bijenicka 54, HR-1002 Zagreb (Croatia)] [Molecular Physics Laboratory, Division of Materials Physics, Ruder Boskovic Institute, Bijenicka 54, HR-1002 Zagreb (Croatia); Ceh, M., E-mail: miran.ceh@ijs.si [Department for Nanostructured Materials, Jozef Stefan Institute, Jamova cesta 39, SI-1000 Ljubljana (Slovenia)

2011-03-15T23:59:59.000Z

111

Morphology and Composition cycle of BaO/Al2O3 NSR Catalysts during...  

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

- PNNL Project 47120) Kinetic and Performance Studies of the Regeneration Phase of Model PtRhBa NOx Traps for Design and Optimization CLEERS Aftertreatment Modeling and Analysis...

112

Syntheses, crystal structures and characterizations of BaZn(SeO{sub 3}){sub 2} and BaZn(TeO{sub 3})Cl{sub 2}  

SciTech Connect (OSTI)

Two new barium zinc selenite and tellurite, namely, BaZn(SeO{sub 3}){sub 2} and BaZn(TeO{sub 3})Cl{sub 2}, have been synthesized by the solid state reaction. The structure of BaZn(SeO{sub 3}){sub 2} features double chains of [Zn(SeO{sub 3}){sub 2}]{sup 2-} anions composed of four- and eight-member rings which are alternatively along a-axis. The double chains of [Zn{sub 2}(TeO{sub 3}){sub 2}Cl{sub 3}]{sup 3-} anions in BaZn(TeO{sub 3})Cl{sub 2} are formed by Zn{sub 3}Te{sub 3} rings in which each tellurite group connects with three ZnO{sub 3}Cl tetrahedra. BaZn(SeO{sub 3}){sub 2} and BaZn(TeO{sub 3})Cl{sub 2} are wide bandgap semiconductors based on optical diffuse reflectance spectrum measurements. -- Graphical abstract: Two new barium zinc selenite and tellurite, namely, BaZn(SeO{sub 3}){sub 2} and BaZn(TeO{sub 3})Cl{sub 2}, have been synthesized by solid state reaction. The structure of BaZn(SeO{sub 3}){sub 2} features 1D double chains of [Zn(SeO{sub 3}){sub 2}]{sup 2-} anions composed of four- and eight-member rings which are alternatively along a-axis. The 1D double chains of [Zn{sub 2}(TeO{sub 3}){sub 2}Cl{sub 3}]{sup 3-} anions in BaZn(TeO{sub 3})Cl{sub 2} are formed by Zn{sub 3}Te{sub 3} rings in which each tellurite group connects with one ZnO{sub 3}Cl and two ZnO{sub 2}Cl{sub 2} tetrahedra. BaZn(SeO{sub 3}){sub 2} and BaZn(TeO{sub 3})Cl{sub 2} are wide bandgap semiconductors based on optical diffuse reflectance spectrum measurements.

Jiang Hailong [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, and the Graduate School of the Chinese Academy of Sciences, Fuzhou 350002 (China); Feng Meiling [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, and the Graduate School of the Chinese Academy of Sciences, Fuzhou 350002 (China); Mao Jianggao [State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, and the Graduate School of the Chinese Academy of Sciences, Fuzhou 350002 (China)]. E-mail: mjg@ms.fjirsm.ac.cn

2006-06-15T23:59:59.000Z

113

SeeBA Energiesysteme GmbH | 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 Inspector GeneralDepartmentAUDIT REPORTOpenWende New EnergyAnatoliaScira Offshore EnergyLLCSeawindSeeBA

114

BA Tirunelveli Bundled Wind Project | 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: 160 EastMaine: EnergyAustin Energy Place: TexasAvoyellesdeA S Biogas AnlagenB9 EnergyB9BA

115

Low-lying Collective States in {sup 136}Ba  

SciTech Connect (OSTI)

Low-lying collective states in {sup 136}Ba were investigated with (n,n'{gamma}) techniques, including Doppler-shift attenuation lifetime measurements. The level spins, lifetimes, branching ratios, multipole-mixing ratios and transition strengths reveal candidates for symmetric-phonon states up to third order. The 2{sub ms}{sup +} mixed-symmetry state was confirmed as unfragmented and a candidate for a [2{sub 1}{sup +} x 2{sub ms}{sup +}]{sub 3}{sup +} two-phonon mixed-symmetry state is proposed.

Scheck, M. [Oliver Lodge Laboratory, University of Liverpool, Liverpool, GB (United Kingdom); Dept. of Physics and Astronomy, University of Kentucky, Lexington, KY (United States); Mukhopadhyay, S.; Crider, B.; Choudry, S. N.; Elhami, E.; Peters, E. E.; McEllistrem, M. T.; Orce, J. N. [Dept. of Physics and Astronomy, University of Kentucky, Lexington, KY (United States); Yates, S. W. [Dept. of Chemistry, University of Kentucky, Lexington, KY (United States); Dept. of Physics and Astronomy, University of Kentucky, Lexington, KY (United States)

2009-01-28T23:59:59.000Z

116

Formation of single-phase BaO nanoclusters. | 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 formsingle-phase BaO

117

Con o sin calzn  

E-Print Network [OSTI]

era ange- lical. Aun con su bikini verde, el que apenas leen los brazos de ella con su bikini verde. Cuando tengas mi

Lizrraga, W. Enrique

1987-01-01T23:59:59.000Z

118

ECONOMICS BA DEGREE MAJOR REQUIREMENTS FLOWCHART FOR ACADEMIC YEAR 2012-2013  

E-Print Network [OSTI]

ECONOMICS BA DEGREE MAJOR REQUIREMENTS FLOWCHART FOR ACADEMIC YEAR 2012-2013 (see http://www.catalog.sdes.ucf.edu/) All B.A. Economics majors will be required to take a minimum of seven (7) electives by choosing from the following: PREREQUISITES REQUIRED ECO 3223 Money and Banking ECO 3410 Mathematical Economics ECO 3703

Wu, Shin-Tson

119

Energy loss of relativistic heavy ions in matter B.A. Weaver*, A.J. Westphal  

E-Print Network [OSTI]

Energy loss of relativistic heavy ions in matter B.A. Weaver*, A.J. Westphal Space Sciences.50.Bw Keywords: Energy loss; Stopping power; Heavy ions 1. Introduction The theory of energy loss has.: + 1-510-642-9733; fax: + 1- 510-643-7629. E-mail address: weaver@curium.ssl.berkeley.edu (B.A. Weaver

Leung, Pui-Tak "Peter"

120

E-Print Network 3.0 - ag cd ba Sample Search Results  

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

, 15, 10, 5, and 0 nm . Device Thickness of BaAgITO nm EL max a nm L at 100 cdm2 lmW ext at 100 cd... Top-emitting organic light-emitting diodes with BaAgindium tin...

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


121

Roadmap: Classics Latin Concentration Bachelor of Arts [AS-BA-CLSS-LAT  

E-Print Network [OSTI]

Roadmap: Classics ­ Latin Concentration ­ Bachelor of Arts [AS-BA-CLSS-LAT] College of Arts Updated: 11-Jun-12/LNHD This roadmap is a recommended semester-by-semester plan of study for this major;Roadmap: Classics ­ Latin Concentration ­ Bachelor of Arts [AS-BA-CLSS-LAT] College of Arts and Sciences

Sheridan, Scott

122

Roadmap: German Literature, Culture and Translation Bachelor of Arts [AS-BA-GLCT  

E-Print Network [OSTI]

Roadmap: German Literature, Culture and Translation ­ Bachelor of Arts [AS-BA-GLCT] College of Arts Updated: 24-May12/LNHD This roadmap is a recommended semester-by-semester plan of study for this major;Roadmap: German Literature, Culture and Translation ­ Bachelor of Arts [AS-BA-GLCT] College of Arts

Sheridan, Scott

123

Preparation of BaTiO3 nanoparticles by combustion spray pyrolysis Sangjin Leea  

E-Print Network [OSTI]

], hydrothermal [6], and spray pyrolysis [7­9] have been developed to prepare stoichiometric, ultra- fine BaTiO3 process. Hydrothermal BaTiO3 powders [6] are usually a paraelectric cubic phase, which needs additional freedom from hydrocarbon-based chem- icals, and thus avoiding carbon-contamination problems. As a result

Messing, Gary L.

124

The effect of BaCO3 on the hydration of OPC and composite cements  

E-Print Network [OSTI]

The effect of BaCO3 on the hydration of OPC and composite cements Claire A. Utton* and Neil B of ordinary Portland cement (OPC) and up to 90% blast furnace slag (BFS), are used to encapsulate Intermediate. The effect of BaCO3 on the hydration properties of composite cements is being studied. This paper reports

Sheffield, University of

125

The Catalytic Chemistry of HCN+NO over Na- and Ba-Y, FAU: An...  

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

The Catalytic Chemistry of HCN+NO over Na- and Ba-Y, FAU: An In Situ FTIR and TPDTPR Study. The Catalytic Chemistry of HCN+NO over Na- and Ba-Y, FAU: An In Situ FTIR and TPDTPR...

126

A facile method for the preparation of Eu{sup 2+}-doped nanocrystalline BaFCl  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: A facile co-precipitation method for the preparation of Eu{sup 2+}-doped BaFCl. Reduction of Eu{sup 3+} to Eu{sup 2+} by zinc granular under nitrogen flow. Photoluminescence and cathodoluminescence spectroscopy of the as-prepared BaFCl:Eu{sup 2+}. Temperature dependent photoluminescence properties of Eu{sup 2+} ions in BaFCl. - Abstract: A facile method for the preparation of Eu{sup 2+}-doped BaFCl is reported. The method is based on the co-precipitation of aqueous solutions of BaCl{sub 2} and NH{sub 4}F to yield BaFCl. The doping by europium in the 2+ oxidation state is realized by the reduction of Eu{sup 3+} to Eu{sup 2+} employing granular zinc in the BaCl{sub 2} solution under nitrogen. Powder X-ray diffraction and electron microscopy have been used to confirm the BaFCl phase and photoluminescence, in the temperature range of 2.5290 K, and room-temperature cathodoluminescence spectra have been measured to characterize the Eu{sup 2+} ions in the sample.

Wang, Xianglei; Liu, Zhiqiang [School of Physical, Environmental and Mathematical Sciences, The University of New South Wales, UNSW Canberra (ADFA), Canberra, ACT 2600 (Australia); Stevens-Kalceff, Marion A. [School of Physics and Electron Microscope Unit, Mark Wainwright Analytical Centre, The University of New South Wales, Sydney, NSW 2052 (Australia); Riesen, Hans, E-mail: h.riesen@adfa.edu.au [School of Physical, Environmental and Mathematical Sciences, The University of New South Wales, UNSW Canberra (ADFA), Canberra, ACT 2600 (Australia)

2013-10-15T23:59:59.000Z

127

Submillimeter and microwave residual losses in epitaxial films of Y-Ba-Cu-O and Tl-Ca-Ba-Cu-O  

SciTech Connect (OSTI)

We have used a novel bolometric technique and a resonant technique to obtain accurate submillimeter and microwave residual loss data for epitaxial thin films of YBa{sub 2}Cu{sub 3}O{sub 7}, Tl{sub 2}Ca{sub 2}Ba{sub 2}Cu{sub 3}O{sub 10} and Tl{sub 2}CaBa{sub 2}Cu{sub 2}O{sub 8}. For all films we obtain good agreement between the submillimeter and microwave data, with the residual losses in both the Y-Ba-Cu-O and Tl-Ca-Ba-Cu-O films scaling approximately as frequency squared below {approximately} 1 THz. We are able to fit the losses in the Y-Ba-Cu-O films to a weakly coupled grain model for the a-b plane conductivity, in good agreement with results from a Kramers-Kronig analysis of the loss data. We observe strong phonon structure in the Tl-Ca-Ba-Cu-O films for frequencies between 2 and 21 THz, and are unable to fit these losses to the simple weakly coupled grain model. This is in strong contrast to the case for other high {Tc} superconductors such as YBa{sub 2}Cu{sub 3}O{sub 7}, where phonon structure observed in ceramic samples is absent in epitaxial oriented films and crystals because of the electronic screening due to the high conductivity of the a-b planes.

Miller, D.; Richards, P.L. [Lawrence Berkeley Lab., CA (United States); Garrison, S.M.; Newman, N. [Conductus, Inc., Sunnyvale, CA (United States); Eom, C.B.; Geballe, T.H. [Stanford Univ., CA (United States). Dept. of Applied Physics; Etemad, S.; Inam, A.; Venkatesan, T. [Bell Communications Research, Inc., Red Bank, NJ (United States); Martens, J.S. [Sandia National Labs., Albuquerque, NM (United States); Lee, W.Y. [International Business Machines Corp., San Jose, CA (United States); Bourne, L.C. [Superconductor Technologies, Inc., Santa Barbara, CA (United States)

1992-03-01T23:59:59.000Z

128

High Dispersion Spectroscopy of Solar-type Superflare Stars. I. Temperature, Surface Gravity, Metallicity, and $v \\sin i$  

E-Print Network [OSTI]

We conducted high dispersion spectroscopic observations of 50 superflare stars with Subaru/HDS, and measured the stellar parameters of them. These 50 targets were selected from the solar-type (G-type main sequence) superflare stars that we had discovered from the Kepler photometric data. As a result of these spectroscopic observations, we found that more than half (34 stars) of our 50 targets have no evidence of binary system. We then estimated effective temperature ($T_{\\rm{eff}}$), surface gravity ($\\log g$), metallicity ([Fe/H]), and projected rotational velocity ($v\\sin i$) of these 34 superflare stars on the basis of our spectroscopic data. The accuracy of our estimations is higher than that of Kepler Input Catalog (KIC) values, and the differences between our values and KIC values ($(\\Delta T_{\\rm{eff}})_{\\rm{rms}} \\sim 219$K, $(\\Delta \\log g)_{\\rm{rms}} \\sim 0.37$ dex, and $(\\Delta\\rm{[Fe/H]})_{\\rm{rms}} \\sim 0.46$ dex) are comparable to the large uncertainties and systematic differences of KIC values ...

Notsu, Yuta; Maehara, Hiroyuki; Notsu, Shota; Shibayama, Takuya; Nogami, Daisaku; Shibata, Kazunari

2014-01-01T23:59:59.000Z

129

Oklahoma State University Honors Degrees (May. 1969 -May, 2013) Barber Frank A. Chemistry (B.A.) AS MAY 1969  

E-Print Network [OSTI]

.A.) AS MAY 1976 McGuigan Patrick B. History (B.A.) AS MAY 1976 Holmes William J. Humanities (B.A.) AS MAY.S.) AS MAY 1969 Seebo Thomas C. II Political Science (B.A.) AS MAY 1970 Stewart Elisabeth French (B Charles E. Spanish (B.A.) AS DEC 1972 Miller Amanda K. English (B.S.) AS MAY 1973 Potts Jon R. III History

Veiga, Pedro Manuel Barbosa

130

Catalytic decomposition of Ba(NO3)2 on Pt(111)  

SciTech Connect (OSTI)

The decomposition of Ba(NO3)2 formed on BaO/Pt(111) (Pt(111) surface is partially covered by BaO) in the presence of CO was studied using temperature programmed desorption (TPD), infrared reflection absorption (IRA) and X-ray photoelectron (XP) spectroscopies. The exposure of BaO/Pt(111) to elevated NO2 pressure (1.010-4 Torr) at 450 K leads to the formation of Ba(NO3)2, chemisorbed O (OPt) and Pt-oxide-like domains. During TPD, the Ba(NO3)2 begins to thermally decompose near 490 K, releasing NO and NO2 with the maximum NOx desorption rate seen at 605 K. The OPt species formed following the exposure of BaO/Pt(111) to NO2 react with CO to release CO2 at 450 K. The consumption of OPt during CO oxidation initiates the migration of O from the Pt-oxide-like domains to the chemisorbed phase, where the CO oxidation reaction occurs. Therefore, the removal of OPt by CO leads to the reduction of oxidized Pt, and to the formation of metallic Pt(111) domains, where, subsequently, catalytic decomposition of Ba(NO3)2 can take place. The Pt-catalyzed decomposition of Ba(NO3)2 occurs readily at 450 K, a temperature much lower than the onset of the decomposition temperature of Ba(NO3)2 in the presence of oxidized Pt. This work was supported by the US Department of Energy Basic Energy Sciences' Chemical Sciences, Geosciences & Biosciences Division. Pacific Northwest National Laboratory is operated by Battelle for the US Department of Energy.

Mudiyanselage, Kumudu; Weaver, Jason F.; Szanyi, Janos

2011-04-07T23:59:59.000Z

131

Synthesis and magnetic properties of the double layer perovskite CeBaFe2O5+w  

E-Print Network [OSTI]

Synthesis and magnetic properties of the double layer perovskite CeBaFe2O5+w R. L. de Almeida,1 O The synthesis, crystallographic structure, and magnetic properties of polycrystalline single-phase samples of CeBaFe results on the successful prepara- tion and characterization of polycrystalline CeBaFe2O5+w samples. Ideal

de Lima, Oscar Ferreira

132

Hydrothermal Synthesis of Dy-Doped BaTiO3 Powders ERSIN E. OREN and A. CUNEYT TAS  

E-Print Network [OSTI]

. Hydrothermal processing sis method used and temperature, may exhibit four different of BaTiO3 powders has) are "ferroelectric." hydrothermal processing required a pH 12 in the aqueous BaTiO3 is of the tetragonal symmetryHydrothermal Synthesis of Dy-Doped BaTiO3 Powders ERSIN E. OREN and A. CUNEYT TAS Submicron

Tas, A. Cuneyt

133

Recent BaBar Results on Hadron Spectroscopy  

SciTech Connect (OSTI)

Recent results from on hadronic spectroscopy are presented, based on data collected by the BaBar experiment between 1999 and 2004. The properties of the recently discovered D*{sub sJ}(2317){sup +} and D{sub sJ}(2460){sup +} states are studied: resonance parameters and ratios of decay rates are measured from continuum e{sup +}e{sup -} production, and production rates are measured from B decays. A search for the D*{sub sJ}(2632){sup +} state whose observation has been recently reported by the SELEX Collaboration, and a search for a charged partner of the charmonium-like X(3872) state, are performed, yielding negative results. Finally, extensive searches for several pentaquark candidates, both fully inclusive and in B decays, result in no positive evidence.

Robutti, E.; /INFN, Genoa

2005-08-29T23:59:59.000Z

134

Determination of transition frequencies in a single $^{138}$Ba$^{+}$ ion  

E-Print Network [OSTI]

Transition frequencies between low-lying energy levels in a single trapped $^{138}$Ba$^{+}$ ion have been measured with laser spectroscopy referenced to an optical frequency comb. By extracting the frequencies of one-photon and two-photon components of the line shape using an eight-level optical Bloch model, we achieved 0.1 MHz accuracy for the 5d $^{2}$D$_{3/2}$ - 6p $^{2}$P$_{1/2}$ and 6s $^{2}$S$_{1/2}$ - 5d $^{2}$D$_{3/2}$ transition frequencies, and 0.2 MHz for the 6s $^{2}$S$_{1/2}$ - 6p $^{2}$P$_{1/2}$ transition frequency.

Dijck, E A; Grier, A T; Jungmann, K; Mohanty, A; Valappol, N; Willmann, L

2015-01-01T23:59:59.000Z

135

Synthesis and crystal structure of new layered BaNaSc(BO{sub 3}){sub 2} and BaNaY(BO{sub 3}){sub 2} orthoborates  

SciTech Connect (OSTI)

Crystals of two new layered BaNaSc(BO{sub 3}){sub 2} (I) and BaNaY(BO{sub 3}){sub 2} (II) orthoborates are grown from the melt-solution by the spontaneous crystallization onto the platinum loop. Single crystal X-ray analysis showed that the compounds are isostructural with the space group R3-bar, a=5.23944(12) and 5.3338(2) A, and c=34.5919(11) and 35.8303(19) A for I and II, respectively, Z=6. The distinctive feature of the structure is the close-packed composite anion-cation (Ba,Na)(BO{sub 3}) layers. The layers are combined into the base building packages of two types: {l_brace}M{sup 3+}[Ba{sup 2+}(BO{sub 3}){sup 3-}]{sub 2}{r_brace}{sup +} and {l_brace}M{sup 3+}[Na{sup +}(BO{sub 3}){sup 3-}]{sub 2}{r_brace}{sup -}, where M is Sc or Y. Neutral-charge two-package (four-layer) blocks are stacked by the rhombohedral principle into twelve layers of the cubic packing. - Graphical abstract: The distinctive feature of new orthoborate crystals BaNaSc(BO{sub 3}){sub 2} and BaNaY(BO{sub 3}){sub 2} is the combination of base building packages of two types: {l_brace}M{sup 3+}[Ba{sup 2+}(BO{sub 3}){sup 3-}]{sub 2}{r_brace}{sup +} and {l_brace}M{sup 3+}[Na{sup +}(BO{sub 3}){sup 3-}]{sub 2}{r_brace}{sup -}, where M is Sc or Y.

Seryotkin, Yurii V., E-mail: yuvs@uiggm.nsc.r [Institute of Geology and Mineralogy RAS, 3, Koptyuga avenue, 630090 Novosibirsk (Russian Federation); Novosibirsk State University, 2, Pirogova street, 630090 Novosibirsk (Russian Federation); Bakakin, Vladimir V. [Institute of Inorganic Chemistry RAS, 3, Lavrentieva avenue, 630090 Novosibirsk (Russian Federation); Kokh, Aleksandr E.; Kononova, Nadezhda G. [Institute of Geology and Mineralogy RAS, 3, Koptyuga avenue, 630090 Novosibirsk (Russian Federation); Svetlyakova, Tatyana N. [Institute of Geology and Mineralogy RAS, 3, Koptyuga avenue, 630090 Novosibirsk (Russian Federation); Novosibirsk State University, 2, Pirogova street, 630090 Novosibirsk (Russian Federation); Kokh, Konstantin A. [Institute of Geology and Mineralogy RAS, 3, Koptyuga avenue, 630090 Novosibirsk (Russian Federation); Drebushchak, Tatyana N. [Novosibirsk State University, 2, Pirogova street, 630090 Novosibirsk (Russian Federation); Institute of Solid State Chemistry and Mechanochemistry RAS, 18, Kutateladze street, 630128 Novosibirsk (Russian Federation)

2010-05-15T23:59:59.000Z

136

Thermodynamic Model for the Solubility of Ba(SeO4, SO4) Precipitates  

SciTech Connect (OSTI)

Abstract: The solubility of Ba(SeO4, SO4) precipitates was determined as a function of the BaSeO4 mole fractions, ranging from 0.0015 to 0.3830, and time with an equilibration period extending to as long as 302 days. Equilibrium/steady state conditions in this system are reached in ? 65 days. Pitzers ion interaction model was used to calculate solid and aqueous phase activity coefficients. Thermodynamic analyses showed that the data do not satisfy Gibbs-Duhem equation, thereby demonstrating that a single-solid solution phase does not control both the selenate and sulfate concentrations. Our extensive data with log 10 [Ba] ranging from ?3.6 to ?5.9 mol kg?1, log 10 [SeO4] rangingfrom?3.6 to -5.2 mol kg?1, and log 10 [SO4] ranging from?4.0 to ?5.3 mol kg?1 can be explained with the formation of an ideal BaSeO4 solid solution phase that controls the selenium concentrations and a slightly disordered/less-crystalline BaSO4(s) (log 10𝐾?sp = ?9.5 instead of ?10.05 for barite) that controls the sulfate concentrations. In these experiments the BaSO4 component of the solid solution phase never reaches thermodynamic equilibrium with the aqueous phase. Thermodynamic interpretations of the data show that both the ideal BaSeO4 solid solution phase and less-crystalline BaSO4 (s) phase are in equilibrium with each other in the entire range of BaSeO 4 mole fractions investigated in this study.

Rai, D.; Felmy, Andrew R.; Moore, Dean A.; Kitamura, Akira; Yoshikawa, Hideki; Doi, Reisuke; Yoshida, Yasushi

2014-08-15T23:59:59.000Z

137

Julian, B.R. and G.R. Foulger, Monitoring Geothermal Processes with Microearthquake Mechanisms, Thirty-Fourth Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, February 9-  

E-Print Network [OSTI]

Julian, B.R. and G.R. Foulger, Monitoring Geothermal Processes with Microearthquake Mechanisms, Thirty- Fourth Workshop on Geothermal Reservoir Engineering, Stanford University, Stanford, California, February 9- 11, 2009. Monitoring Geothermal Processes with Microearthquake Mechanisms Bruce R. Julian, U. S

Foulger, G. R.

138

E-Print Network 3.0 - amikhte ba estefade Sample Search Results  

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

T0THSCVFMKTG major 2011-12.doc Summary: see page 2 for requirements. See an advisor with questions. 2 BA 396 is also offered online, usually... fall term. Check E-campus...

139

Water-induced morphology changes in BaO/?-Al2O3 NOx storage...  

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

materials: an FTIR, TPD, and time-resolved synchrotron XRD Water-induced morphology changes in BaO?-Al2O3 NOx storage materials: an FTIR, TPD, and time-resolved synchrotron...

140

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

E-Print Network [OSTI]

Introduction to Engineering Computation STAT 310 Probability and Statistics STAT 410 Introduction246 Statistics The George R. Brown School of Engineering Degrees Offered: BA, MStat, MA, PhD Course engineering, computational and applied mathematics, managerial studies, mathematics, political science

Richards-Kortum, Rebecca

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141

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

E-Print Network [OSTI]

Introduction to Engineering Computation STAT 310 Probability and Statistics STAT 410 Introduction253 Statistics The George R. Brown School of Engineering Degrees Offered: BA, MStat, MA, PhD Course engineering, computational and applied mathematics, managerial studies, mathematics, political science

Richards-Kortum, Rebecca

142

Narrow Bandgap in beta-BaZn2As2 and Its Chemical Origins  

E-Print Network [OSTI]

Beta-BaZn2As2 is known to be a p-type semiconductor with the layered crystal structure similar to that of LaZnAsO, leading to the expectation that beta-BaZn2As2 and LaZnAsO have similar bandgaps; however, the bandgap of beta-BaZn2As2 (previously-reported value ~0.2 eV) is one order of magnitude smaller than that of LaZnAsO (1.5 eV). In this paper, the reliable bandgap value of beta-BaZn2As2 is determined to be 0.23 eV from the intrinsic region of the tem-perature dependence of electrical conductivity. The origins of this narrow bandgap are discussed based on the chemi-cal bonding nature probed by 6 keV hard X-ray photoemission spectroscopy, hybrid density functional calculations, and the ligand theory. One origin is the direct As-As hybridization between adjacent [ZnAs] layers, which leads to a secondary splitting of As 4p levels and raises the valence band maximum. The other is that the non-bonding Ba 5dx2-y2 orbitals form unexpectedly deep conduction band minimum (CBM) in beta-BaZn2As2 although the CBM of L...

Xiao, Zewen; Ueda, Shigenori; Toda, Yoshitake; Ran, Fan-Yong; Guo, Jiangang; Lei, Hechang; Matsuishi, Satoru; Hosono, Hideo; Kamiya, Toshio

2015-01-01T23:59:59.000Z

143

Ferroelectric and ferromagnetic properties in BaTiO{sub 3} thin films on Si (100)  

SciTech Connect (OSTI)

In this paper, we report on the epitaxial integration of room temperature lead-free ferroelectric BaTiO{sub 3} thin (?1050?nm) films on Si (100) substrates by pulsed laser deposition technique through a domain matching epitaxy paradigm. We employed MgO and TiN as buffer layers to create BaTiO{sub 3}/SrRuO{sub 3}/MgO/TiN/Si (100) heterostructures. C-axis oriented and cube-on-cube epitaxial BaTiO{sub 3} is formed on Si (100) as evidenced by the in-plane and out-of-plane x-ray diffraction, and transmission electron microscopy. X-ray photoemission spectroscopic measurements show that Ti is in 4(+) state. Polarization hysteresis measurements together with Raman spectroscopy and temperature-dependent x-ray diffraction confirm the room temperature ferroelectric nature of BaTiO{sub 3}. Furthermore, laser irradiation of BaTiO{sub 3} thin film is found to induce ferromagnetic-like behavior but affects adversely the ferroelectric characteristics. Laser irradiation induced ferromagnetic properties seem to originate from the creation of oxygen vacancies, whereas the pristine BaTiO{sub 3} shows diamagnetic behavior, as expected. This work has opened up the route for the integration of room temperature lead-free ferroelectric functional oxides on a silicon platform.

Singamaneni, Srinivasa Rao, E-mail: ssingam@ncsu.edu; Prater, John T. [Materials Science Division, Army Research Office, Research Triangle Park, North Carolina 27709 (United States); Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695 (United States); Punugupati, Sandhyarani; Hunte, Frank; Narayan, Jagdish [Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina 27695 (United States)

2014-09-07T23:59:59.000Z

144

Measurements of the CKM Angle Alpha at BaBar  

SciTech Connect (OSTI)

The authors present improved measurements of the branching fractions and CP-asymmetries fin the B{sup 0} {yields} {pi}{sup +}{pi}{sup -}, B{sup 0} {yields} {pi}{sup 0}{pi}{sup 0}, and B{sup +} {yields} {rho}{sup +}{rho}{sup 0} decays, which impact the determination of {alpha}. The combined branching fractions of B {yields} K{sub 1}(1270){pi} and B {yields} K{sub 1}(1400){pi} decays are measured for the first time and allow a novel determination of {alpha} in the B{sup 0} {yields} {alpha}{sub 1}(1260){sup {+-}}{pi}{sup {-+}} decay channel. These measurements are performed using the final dataset collected by the BaBar detector at the PEP-II B-factory. The primary goal of the experiments based at the B factories is to test the Cabibbo-Kobayashi-Maskawa (CKM) picture of CP violation in the standard model of electroweak interactions. This can be achieved by measuring the angles and sides of the Unitarity Triangle in a redundant way.

Stracka, Simone; /Milan U. /INFN, Milan; ,

2012-04-04T23:59:59.000Z

145

Search for compounds of the NaBaR(BO{sub 3}){sub 2} family (R = La, Nd, Gd, and Yb) and the new NaBaYb(BO{sub 3}){sub 2} orthoborate  

SciTech Connect (OSTI)

A search for compounds of the NaBaR(BO{sub 3}){sub 2} composition (where R = La{sup 3+}, Nd{sup 3+}, Gd{sup 3+}, or Yb{sup 3+}) is performed by solid state synthesis and spontaneous crystallization. A new compound, NaBaYb(BO{sub 3}){sub 2}, is found in this series. It crystallizes in space group R3{sup -} and belongs to the family of sublayer complex orthoborates with isolated BO{sub 3} groups NaBaR(BO{sub 3}){sub 2} (R = Y, Sc, and Yb). Theoretical X-ray powder diffraction patterns of NaBaY(BO{sub 3}){sub 2}, NaBaSc(BO{sub 3}){sub 2}, and NaBaYb(BO{sub 3}){sub 2} are calculated based on single-crystal data.

Svetlyakova, T. N., E-mail: svetlyakovatn@gmail.com; Kokh, A. E.; Kononova, N. G. [Russian Academy of Sciences, Sobolev Institute of Geology and Mineralogy, Siberian Branch (Russian Federation)] [Russian Academy of Sciences, Sobolev Institute of Geology and Mineralogy, Siberian Branch (Russian Federation); Fedorov, P. P. [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)] [Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation); Rashchenko, S. V. [Russian Academy of Sciences, Sobolev Institute of Geology and Mineralogy, Siberian Branch (Russian Federation)] [Russian Academy of Sciences, Sobolev Institute of Geology and Mineralogy, Siberian Branch (Russian Federation); Maillard, A. [University of Metz and Supelec, Laboratoire Materiaux Optiques, Photonique et Systemes (France)] [University of Metz and Supelec, Laboratoire Materiaux Optiques, Photonique et Systemes (France)

2013-01-15T23:59:59.000Z

146

Freud's Identity of Differential Geometry, the Einstein-Hilbert Equations and the Vexatious Problem of the Energy-Momentum Conservation in GR  

E-Print Network [OSTI]

We reveal in a rigorous mathematical way using the theory of differential forms, here viewed as sections of a Clifford bundle over a Lorentzian manifold, the true meaning of Freud's identity of differential geometry discovered in 1939 (as a generalization of results already obtained by Einstein in 1916) and rediscovered in disguised forms by several people. We show moreover that contrary to some claims in the literature there is not a single (mathematical) inconsistency between Freud's identity (which is a decomposition of the Einstein indexed 3-forms in two gauge dependent objects) and the field equations of General Relativity. However, as we show there is an obvious inconsistency in the way that Freud's identity is usually applied in the formulation of energy-momentum "conservation laws" in GR. In order for this paper to be useful for a large class of readers (even those ones making a first contact with the theory of differential forms) all calculations are done with all details (disclosing some of the "tricks of the trade" of the subject).

Eduardo A. Notte-Cuello; Waldyr A. Rodrigues Jr

2008-03-05T23:59:59.000Z

147

STM images showing the morphology of BaO film (7 MLleft and 80 MLright) formed by the direct evaporation of the BaO.  

E-Print Network [OSTI]

Spectroscopy and Diffraction Group, EMSL, PNNL Wayne Goodman Department of Chemistry, Texas A&M University alumina film with a buffer layer, and/or the BaO clusters can be formed via direct sublimation of metal of trimethylacetic acid molecules on reduced TiO2(110) surface." Physical Chemistry Chemical Physics 12

148

Page 1 | B.A. in Special Education Adapted Curriculum | Academic Plan of Study Updated May 2014 B.A. in Special Education (Adapted Curriculum)  

E-Print Network [OSTI]

Page 1 | B.A. in Special Education ­ Adapted Curriculum | Academic Plan of Study Updated May 2014 B ­ Adapted Curriculum | Academic Plan of Study Updated May 2014 Special Education - Adapted Curriculum Areas.A. in Special Education (Adapted Curriculum) Academic Plan of Study College of Education Department of Special

Raja, Anita

149

The new Hg-rich barium indium mercurides BaIn{sub x}Hg{sub 7?x} (x=3.1) and BaIn{sub x}Hg{sub 11?x} (x=02.8)  

SciTech Connect (OSTI)

The title compounds BaIn{sub x}Hg{sub 7?x} (x=3.1(1)) and BaIn{sub x}Hg{sub 11?x} (x=02.8) were synthesized from stoichiometric ratios of the elements in Ta crucibles. Their crystal structures have been determined using single crystal X-ray data. BaIn{sub x}Hg{sub 7?x} (x=3.1(1)) crystallizes in a new structure type (orthorhombic, oC16, space group Cmmm: a=512.02(1), b=1227.68(3), c=668.61(2) pm, Z=2, R1=0.0311). In the structure, the atoms of the three crystallographically different mixed In/Hg positions form planar nets of four-, six- and eight-membered rings. These nets are shifted against each other such that the four-membered rings form empty distorted cubes. The cubes are connected via common edges, corners and folded ladders, which are also found in BaIn{sub 2}/BaHg{sub 2} (KHg{sub 2} structure type) and BaIn (?-NaHg type). The Ba atoms are centered in the eight-membered rings and exhibit an overall coordination number of 20. The [BaM{sub 20}] polyhedra and twice as many distorted [M{sub 8}] cubes tesselate the space. BaIn{sub 2.8}Hg{sub 8.2} (cubic, cP36, space group Pm3{sup }m, a=961.83(1) pm, Z=3, R1=0.0243) is the border compound of the phase width BaIn{sub x}Hg{sub 11?x} of the rare BaHg{sub 11} structure type. In the structure, ideal [M{sub 8}] cubes (at the corners of the unit cell) and BaM{sub 20} polyhedra (at the edges of the unit cell) represent the building blocks comparable to the other new In mercuride. In accordance with the increased In/Hg content, additional M-pure regions appear: the center of the unit cell contains a huge [Hg(1)M(2){sub 12}M(3,4){sub 32}] polyhedron, a Hg-centered cuboctahedron of In/Hg atoms surrounded by a capped cantellated cube of 32 additional M atoms. For both structure types, the bonding situation and the coloring, i.e. the In/Hg distribution of the polyanionic network, are discussed considering the different sizes of the atoms and the charge distribution (Bader AIM charges), which have been calculated within the framework of FP-LAPW density functional theory. - Graphical abstract: BaIn{sub 2.6}Hg{sub 4.4}: distorted cubes [(In/Hg){sub 8}] (green, like in BaHg{sub 11}), folded ladders (violet, like in BaIn, BaHg{sub 2} and BaIn{sub 2}) and Ba coordination polyhedra [Ba(In/Hg){sub 20}] (blue, like in BaHg{sub 11}). - Highlights: The Hg-rich In-mercuride BaIn{sub 3.1}Hg{sub 3.9} crystallizes with a singular structure type. The phase width of the BaHg{sub 11} structure in BaIn{sub x}Hg{sub 11-x} ends at x=2.8. The relations of both compounds with other alkaline-earth mercurides are outlined. The Hg/In coloring of the polyanion is discussed considering the structure features. Bonding aspects are explored using band structure calculations.

Wendorff, Marco; Schwarz, Michael; Rhr, Caroline, E-mail: caroline@ruby.chemie.uni-freiburg.de

2013-07-15T23:59:59.000Z

150

Structure investigation with the (p,t) reaction on {sup 132,134}Ba nuclei  

SciTech Connect (OSTI)

The low-lying excited states in {sup 132,134}Ba isotopes have been studied with high-resolution (p,t) reactions. The experiments were performed at the Munich Q3D spectrograph with a 25-MeV proton beam and the 1.5-m-long focal plane detector. The high-resolution triton spectra allowed the observation of levels up to {approx}4 MeV. The experimental results revealed 75 excited states in {sup 134}Ba and 79 in {sup 132}Ba, many of them observed for the first time. The measured angular distributions compared with distorted-wave Born approximation calculations allowed spin assignments for these levels in most cases. The systematics of the monopole and quadrupole two-neutron transfer strengths is compared with the prediction of the interacting boson approximation model. The results indicate a transitional structure in {sup 132}Ba and {sup 134}Ba and contribute additional evidence in favor of a description between the U(5) and O(6) symmetries of the model.

Pascu, S.; Cata-Danil, Gh. [National Institute for Physics and Nuclear Engineering, RO-77125 Bucharest-Magurele (Romania); Physics Department, Politehnica University of Bucharest, RO-060042 Bucharest (Romania); Bucurescu, D. [National Institute for Physics and Nuclear Engineering, RO-77125 Bucharest-Magurele (Romania); Academy of Romanian Scientists, 54 Splaiul Independentei, RO-050094 Bucharest (Romania); Marginean, N.; Zamfir, N. V. [National Institute for Physics and Nuclear Engineering, RO-77125 Bucharest-Magurele (Romania); Mueller, C. [Physics Department, Politehnica University of Bucharest, RO-060042 Bucharest (Romania); Graw, G.; Gollwitzer, A.; Hofer, D.; Valnion, B. D. [Fakultaet fuer Physik der Universitaet Muenchen, D-85748 Garching (Germany)

2010-01-15T23:59:59.000Z

151

Significant increase of Curie temperature in nano-scale BaTiO{sub 3}  

SciTech Connect (OSTI)

The low Curie temperature (T{sub c}?=?130?C) of bulk BaTiO{sub 3} greatly limits its applications. In this work, the phase structures of BaTiO{sub 3} nanoparticles with sizes ranging from 2.5?nm to 10?nm were studied at various temperatures by using aberration-corrected transmission electron microscopy (TEM) equipped with an in-situ heating holder. The results implied that each BaTiO{sub 3} nanoparticle was composed of different phases, and the ferroelectric ones were observed in the shells due to the complicated surface structure. The ferroelectric phases in BaTiO{sub 3} nanoparticles remained at 600?C, suggesting a significant increase of T{sub c}. Based on the in-situ TEM results and the data reported by others, temperature-size phase diagrams for BaTiO{sub 3} particles and ceramics were proposed, showing that the phase transition became diffused and the T{sub c} obviously increased with decreasing size. The present work sheds light on the design and fabrication of advanced devices for high temperature applications.

Li, Yueliang; Liao, Zhenyu; Fang, Fang; Zhu, Jing, E-mail: jzhu@mail.tsinghua.edu.cn [National Center for Electron Microscopy in Beijing, School of Materials Science and Engineering, State Key Laboratory of New Ceramics and Fine Processing, Laboratory of Advanced Materials (MOE), Tsinghua University, Beijing 100084 (China); Wang, Xiaohui; Li, Longtu [State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China)

2014-11-03T23:59:59.000Z

152

EXPLAINING THE Sr AND Ba SCATTER IN EXTREMELY METAL-POOR STARS  

SciTech Connect (OSTI)

Compilations of abundances of strontium and barium in extremely metal-poor stars show that an apparent cutoff is observed for [Sr/Ba] at [Fe/H] < -3.6 and large fluctuations for [Fe/H] > -3.6 with a clear upper bound depending on metallicity. We study the factors that place upper limits on the logarithmic ratio [Sr/Ba]. A model is developed in which the collapses of type II supernovae are found to reproduce many of the features seen in the data. This model is consistent with galactic chemical evolution constraints of light-element enrichment in metal-poor stars. Effects of turbulence in an explosive site have also been simulated, and are found to be important in explaining the large scatter observed in the [Sr/Ba] data.

Aoki, W.; Suda, T.; Boyd, R. N.; Kajino, T.; Famiano, M. A., E-mail: aoki.wako@nao.ac.jp, E-mail: takuma.suda@nao.ac.jp, E-mail: richard11boyde@comcast.net, E-mail: kajino@nao.ac.jp, E-mail: michael.famiano@wmich.edu [National Astronomical Observatory of Japan, 2-21-1 Mitaka, Tokyo 181-8588 (Japan)

2013-03-20T23:59:59.000Z

153

Field-effect BaTiO{sub 3}-Si solar cells  

SciTech Connect (OSTI)

Conventional solar cells make use of the spatial variation in electronic environment due to junctions for charge separation. We investigated field-effect BaTiO{sub 3}-Si solar cells that utilize the bound surface charges of BaTiO{sub 3} to separate charge carriers in silicon. Rectifying behavior and photovoltaic effect were observed on cells with forward polarization. Theoretical simulation indicated that the induced electric field due to BaTiO{sub 3} polarization could extend into the silicon layer, which is consistent with experimental observations. In addition, adjusting relevant parameters may optimize the electric field distribution. The cells are promising in terms of material selection, device design, and fabrication.

Wang, Wentao; Liu, Fude, E-mail: fordliu@hku.hk; Man Lau, Chor; Wang, Lei; Yang, Guandong; Zheng, Dawei [Department of Mechanical Engineering, The University of Hong Kong, Pokfulam Road, Hong Kong (China); Li, Zhigang [Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong (China)

2014-03-24T23:59:59.000Z

154

Microstructural evolutions in converting epitaxial Tl2Ba2CaCu2Ox thin films to epitaxial HgBa2CaCu2O6+delta thin films  

E-Print Network [OSTI]

Superconducting HgBa2CaCu2O6+delta (Hg-1212) thin films were obtained from Tl2Ba2CaCu2Ox (Tl-2212) precursor films using a cation-exchange process. In this process, Tl cations on the precursor lattice were thermally excited and then replaced with Hg...

Wu, Judy; Siegal, M. P.; Xie, Y. Y.; Aytug, T.; Fang, L.

2003-02-01T23:59:59.000Z

155

Energy Calibration of the BaBar EMC Using the Pi0 Invariant Mass Method  

SciTech Connect (OSTI)

The BaBar electromagnetic calorimeter energy calibration method was compared with the local and global peak iteration procedures, of Crystal Barrel and CLEO-II. An investigation was made of the possibility of {Upsilon}(4S) background reduction which could lead to increased statistics over a shorter time interval, for efficient calibration runs. The BaBar software package was used with unreconstructed data to study the energy response of the calorimeter, by utilizing the {pi}{sup 0} mass constraint on pairs of photon clusters.

Tanner, David J.; /Manchester U.

2007-04-06T23:59:59.000Z

156

The Radiation Dose Measurement System for the BaBar Electromagnetic Calorimeter  

SciTech Connect (OSTI)

An array of 116 p-channel radiation sensitive MOSFET transistors (RadFETs) has been operational for the past 6 years at the BaBar experiment at the PEP-II asymmetric B-Factory at the Stanford Linear Accelerator Center (SLAC). This system maps the integrated dose absorbed by different regions of the Electromagnetic Calorimeter (EMC) during the running of the experiment. We report on the design and implementation of the system and finally, the performance of the monitoring system during the last 6 years of BaBar data-taking.

Khan, A.; /Brunel U.; Meyer, W.T.; /Iowa State U.; Stelzer, J.; /Stanford U., Phys. Dept.; Yi, Jong; /Manchester U.

2006-08-14T23:59:59.000Z

157

Data:Edc9061a-dbcf-4e0b-a18a-7b38ef40ba47 | 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 NoEce78e10-0967-4d20-a270-53a70a3b054f NoEdc9061a-dbcf-4e0b-a18a-7b38ef40ba47 No revision has been

158

NOx uptake on alkaline earth oxides (BaO, MgO, CaO and SrO) supported...  

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

uptake on alkaline earth oxides (BaO, MgO, CaO and SrO) supported on ?-Al2O3. NOx uptake on alkaline earth oxides (BaO, MgO, CaO and SrO) supported on ?-Al2O3....

159

College of Charleston Major Roadmap: Religious Studies, B.A. | 2014-15 Page 1 MAJOR ROADMAP  

E-Print Network [OSTI]

College of Charleston Major Roadmap: Religious Studies, B.A. | 2014-15 Page 1 MAJOR ROADMAP Religious Studies, B.A. Catalog Year: 2014-15 This roadmap is a suggested semester-by-semester planning availability may vary from semester to semester. Roadmaps are not meant to cover every possibility

Kasman, Alex

160

Magnetic fabrics and fluid flow directions in hydrothermal systems. A case study in the Chaillac BaFFe deposits  

E-Print Network [OSTI]

of anisotropy of magnetic susceptibility (AMS) to describe the mineralizing process in hydrothermal systems. BaMagnetic fabrics and fluid flow directions in hydrothermal systems. A case study in the Chaillac Ba hydrothermal textures and tectonic structures have been described in veins, sinters, and sandstone cemented

Paris-Sud XI, Université de

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


161

PLAN OF STUDY Digital Media & Design SCHOOL OF FINE ARTS 2013-2014Catalog BA in DMD  

E-Print Network [OSTI]

PLAN OF STUDY Digital Media & Design SCHOOL OF FINE ARTS 2013-2014Catalog BA in DMD ATTACH YOUR ______ _____ __ ______ ______ _____ __ ______ ______ _____ __ ______ ______ _____ __ ______ ______ _____ __ ______ ______ _____ __ ______ ______ _____ __ ______ ______ _____ __ ______ University of Connecticut DMD BA REQUIREMENTS: 51 credits DMD courses (21 credits): DMD 1000 (3) Digital Foundation DMD 1030 (3) Animation Lab DMD 2010 (3) Digital Culture DMD 3050 (3) Visible Language DMD

Alpay, S. Pamir

162

Effect of Y-211 particle size on the growth of single grain YBaCuO bulk superconductors  

E-Print Network [OSTI]

The engineering of fine Y2Ba1Cu1O5 (Y-211) inclusions of average particle size 1?2 ?m within the continuous, superconducting YBa2Cu3O7?? (Y-123) phase matrix of single-grain, bulk high temperature YBaCuO (YBCO) superconductors is fundamental...

Thoma, Max; Shi, Yunhua; Dennis, Tony; Durrell, John; Cardwell, David

2014-12-01T23:59:59.000Z

163

Interface control of ferroelectricity in LaNiO{sub 3}-BaTiO{sub 3} superlattices  

SciTech Connect (OSTI)

LaNiO{sub 3}-BaTiO{sub 3} superlattices with different types of interfaces are studied from first-principles density-functional theory. It is revealed that the ferroelectricity in the superlattice with (NiO{sub 2}){sup ?}/(BaO){sup 0} interfaces is enhanced from that of the superlattice with (LaO){sup +}/(TiO{sub 2}){sup 0} interfaces. The origin lies at the polar discontinuity at the interface, which makes the holes localized within the (NiO{sub 2}){sup ?}/(BaO){sup 0} interface, but drives a penetration of electrons into BaTiO{sub 3} component near (LaO){sup +}/(TiO{sub 2}){sup 0} interface. Our calculations demonstrate an effective avenue to the robust ferroelectricity in BaTiO{sub 3} ultrathin films.

Wu, Yin-Zhong, E-mail: yzwu@cslg.edu.cn [Jiangsu Laboratory of Advanced Functional Materials and Physics Department, Changshu Institute of Technology, Changshu 215500 (China); School of Mathematics and Physics, Suzhou University of Science and Technology, Suzhou 215009 (China); Lu, Hai-Shuang; Cai, Tian-Yi; Ju, Sheng, E-mail: jusheng@suda.edu.cn [Department of Physics and Jiangsu Key Laboratory of Thin Films, Soochow University, Suzhou 215006 (China)

2014-08-15T23:59:59.000Z

164

Biotechnol. Appl. Biochem. (2005) 42, 119131 (Printed in Great Britain) doi:10.1042/BA20040207 119 Clonal evolution of stem and differentiated cells can be  

E-Print Network [OSTI]

Biotechnol. Appl. Biochem. (2005) 42, 119­131 (Printed in Great Britain) doi:10.1042/BA20040207 119

Zandstra, Peter W.

165

Nonequilibrium quasiparticle relaxation dynamics in single crystals of hole- and electron-doped BaFe[subscript 2]As[subscript 2  

E-Print Network [OSTI]

We report on the nonequilibrium quasiparticle dynamics in BaFe[subscript 2]As[subscript 2] on both the hole-doped (Ba[subscript 1?x]K[subscript x]Fe[subscript 2]As[subscript 2]) and electron-doped (BaFe[subscript ...

Torchinsky, Darius Hosseinzadeh

166

CASIS: A System for Concept-Aware Social Image Search Ba Quan Truong  

E-Print Network [OSTI]

CASIS: A System for Concept-Aware Social Image Search Ba Quan Truong bqtruong@ntu.edu.sg Aixin Sun axsun@ntu.edu.sg Sourav S. Bhowmick assourav@ntu.edu.sg School of Computer Engineering, Nanyang the opportunity of building effective tag-based social image retrieval systems. In contrast to content-based image

Aixin, Sun

167

Influence of Ba content on grain size and dynamics of crystallization in barium ferrite thin films  

E-Print Network [OSTI]

Influence of Ba content on grain size and dynamics of crystallization in barium ferrite thin films of the crystallization process, which ultimately determines the grain size, were studied in barium ferrite thin films. Rapid thermal annealing was used to crystallize the amorphous as-deposited barium ferrite films

Laughlin, David E.

168

Search for Physics Beyond the Standard Model at BaBar and Belle  

E-Print Network [OSTI]

Recent results on the search for new physics at BaBar and Belle B-factories are presented. The search for a light Higgs boson produced in the decay of different Y resonances is shown. In addition, recent measurements aimed to discover invisible final states produced by new physics mechanisms beyond the standard model are presented.

G. Calderini

2012-04-19T23:59:59.000Z

169

NAME__________________________________ REQUIREMENTS FOR THE B.A. DEGREE IN COMPUTER SCIENCE  

E-Print Network [OSTI]

NAME__________________________________ REQUIREMENTS FOR THE B.A. DEGREE IN COMPUTER SCIENCE (effective entering class Fall 2013) 1) REQUIRED COMPUTER SCIENCE COURSES (Total of 47 CS credit hours) * COS.00 or greater as must the overall GPA. February 18, 2013 #12;Computer Science Summary Total Total CS Hrs Hrs Q

Thomas, Andrew

170

Roadmap: Political Science American Politics Bachelor of Arts [AS-BA-POL-APOL  

E-Print Network [OSTI]

Roadmap: Political Science ­ American Politics ­ Bachelor of Arts [AS-BA-POL-APOL] College of Arts and Sciences Department of Political Science Catalog Year: 2013-2014 Page 1 of 3 | Last Updated: 30-Sept-13 Important Notes Semester One: [14-17 Credit Hours] POL 10100 American Politics or POL 10300 Public Policy 3

Sheridan, Scott

171

BA Political Economy Political Economy caters for students who wish to understand the  

E-Print Network [OSTI]

BA Political Economy Political Economy caters for students who wish to understand the political to offer such a programme. www.birmingham.ac.uk/polsis Department of Political Science and International.birmingham.ac.uk/international/ students/country Programme Structure First Year Required modules: Foundations of Politics; Introduction

Miall, Chris

172

Roadmap: Political Science American Politics Bachelor of Arts [AS-BA-POL-APOL  

E-Print Network [OSTI]

Roadmap: Political Science ­ American Politics ­ Bachelor of Arts [AS-BA-POL-APOL] College of Arts and Sciences Department of Political Science Catalog Year: 2012­2013 Page 1 of 3 | Last Updated: 20-Apr-12/LNHD Important Notes Semester One: [14-17 Credit Hours] POL 10100 American Politics or POL 10300 Public Policy 3

Sheridan, Scott

173

Roadmap: Political Science General -Bachelor of Arts [AS-BA-POL-GENL  

E-Print Network [OSTI]

Roadmap: Political Science ­ General - Bachelor of Arts [AS-BA-POL-GENL] College of Arts and Sciences Department of Political Science Catalog Year: 2013-2014 Page 1 of 3 | Last Updated: 30-Sept-13 Important Notes Semester One: [14-17 Credit Hours] POL 10100 American Politics or POL 10300 Public Policy 3

Sheridan, Scott

174

Roadmap: Political Science General -Bachelor of Arts [AS-BA-POL-GENL  

E-Print Network [OSTI]

Roadmap: Political Science ­ General - Bachelor of Arts [AS-BA-POL-GENL] College of Arts and Sciences Department of Political Science Catalog Year: 2012­2013 Page 1 of 3 | Last Updated: 8-May-12/LNHD Important Notes Semester One: [14-17 Credit Hours] POL 10100 American Politics or POL 10300 Public Policy 3

Sheridan, Scott

175

BA in POLITICAL SCIENCE (735121) MAP Sheet Department of Political Science  

E-Print Network [OSTI]

BA in POLITICAL SCIENCE (735121) MAP Sheet Department of Political Science For students entering approved list from approved list Poli 328* from approved list personal choice · 27 hours of political, or 270): a. Political Philosophy: Poli 201 Western Political Heritage 1 Poli 202 Western Political

Olsen Jr., Dan R.

176

Roadmap: Political Science Public Policy Bachelor of Arts [AS-BA-POL-PPOL  

E-Print Network [OSTI]

Roadmap: Political Science ­ Public Policy ­ Bachelor of Arts [AS-BA-POL-PPOL] College of Arts and Sciences Department of Political Science Catalog Year: 2012­2013 Page 1 of 3 | Last Updated: 8-May-12/LNHD Important Notes Semester One: [14-17 Credit Hours] POL 10100 American Politics or POL 10300 Public Policy 3

Sheridan, Scott

177

Roadmap: Political Science Public Policy Bachelor of Arts [AS-BA-POL-PPOL  

E-Print Network [OSTI]

Roadmap: Political Science ­ Public Policy ­ Bachelor of Arts [AS-BA-POL-PPOL] College of Arts and Sciences Department of Political Science Catalog Year: 2013-2014 Page 1 of 3 | Last Updated: 30-Sept-13 Important Notes Semester One: [14-17 Credit Hours] POL 10100 American Politics or POL 10300 Public Policy 3

Sheridan, Scott

178

BA Political Science This is one of our most popular degree programmes. It provides  

E-Print Network [OSTI]

BA Political Science This is one of our most popular degree programmes. It provides you with a thorough grounding in the main approaches, theories and debates in Political Science, as well as allowing to you. www.birmingham.ac.uk/polsis Department of Political Science and International Studies (POLSIS

Miall, Chris

179

Spectroscopy, polarization and nonadiabatic dynamics of electronically excited Ba(Ar)n clusters: Theory and experiment  

E-Print Network [OSTI]

Spectroscopy, polarization and nonadiabatic dynamics of electronically excited Ba(Ar)n clusters, France Received 13 September 1995; accepted 17 November 1995 Molecular Dynamics simulations using, a comprehensive picture of the excited state dynamics is given. It is found that upon excitation, energy

Krylov, Anna I.

180

Roadmap: Communication Studies Public Communication Bachelor of Arts [CI-BA-COMM-PCMM  

E-Print Network [OSTI]

Roadmap: Communication Studies ­ Public Communication ­ Bachelor of Arts [CI-BA-COMM-PCMM] College of Communication and Information School of Communication Studies Catalog Year: 2012­2013 Page 1 of 3 | Last Updated Major GPA Important Notes Semester One: [16 Credit Hours] COMM 15000 Introduction to Human Communication

Sheridan, Scott

Note: This page contains sample records for the topic "ba sin gr" 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

Roadmap: Communication Studies -Applied Communication -Bachelor of Arts [CI-BA-COMM-APCO  

E-Print Network [OSTI]

Roadmap: Communication Studies - Applied Communication - Bachelor of Arts [CI-BA-COMM-APCO] College of Communication and Information School of Communication Studies Catalog Year: 2012­2013 Page 1 of 3 | Last Updated Major GPA Important Notes Semester One: [16 Credit Hours] COMM 15000 Introduction to Human Communication

Sheridan, Scott

182

6/06/09 BA in General Biology Bachelor of Arts in General Biology  

E-Print Network [OSTI]

6/06/09 BA in General Biology Bachelor of Arts in General Biology Department of Biology College of Science and Engineering Undergraduate Programs Students majoring in the General Biology degree program are required to complete 57 units in the major. In addition to the biological science courses, it includes

183

BA (Hons) Business Management (In-Company) Degree Information for Prospective Sponsoring Companies  

E-Print Network [OSTI]

BA (Hons) Business Management (In-Company) Degree Information for Prospective Sponsoring Companies) Business Management (In-Company) degree, which is based at Nottingham Business School, is aimed of the programme is full time at the Business School but students then spend the next two years in a company

Evans, Paul

184

Roadmap: Theatre Studies Theatre and Society-Bachelor of Arts [CA-BA-THEA-THSO  

E-Print Network [OSTI]

Roadmap: Theatre Studies ­ Theatre and Society- Bachelor of Arts [CA-BA-THEA-THSO] College This roadmap is a recommended semester-by-semester plan of study for this major. However, courses Requirement 3 Kent Core Requirement 3 General Elective (upper division) 3 See note 2 on page 3 #12;Roadmap

Sheridan, Scott

185

Roadmap: Criminology and Justice Studies Corrections Bachelor of Arts [AS-BA-CRJU-CORR  

E-Print Network [OSTI]

Roadmap: Criminology and Justice Studies ­ Corrections ­ Bachelor of Arts [AS-BA-CRJU-CORR] College/LNHD This roadmap is a recommended semester-by-semester plan of study for this major. However, courses Hours] JUS 46792 Internship 0-6 Recommended but not required #12;Roadmap: Criminology and Justice

Sheridan, Scott

186

Roadmap: Criminology and Justice Studies Policing Bachelor of Arts [AS-BA-CRJU-POLG  

E-Print Network [OSTI]

Roadmap: Criminology and Justice Studies ­ Policing ­ Bachelor of Arts [AS-BA-CRJU-POLG] College/LNHD This roadmap is a recommended semester-by-semester plan of study for this major. However, courses Elective 3 See note 3 on page 2 General Electives (upper division) 9 #12;Roadmap: Criminology

Sheridan, Scott

187

Revised version of J Gen Physiol: 200709771 MOLECULAR DETERMINANT FOR SPECIFIC Ca/Ba  

E-Print Network [OSTI]

1 Revised version of J Gen Physiol: 200709771 MOLECULAR DETERMINANT FOR SPECIFIC Ca/Ba SELECTIVITY PROFILES OF LOW AND HIGH THRESHOLD Ca2+ CHANNELS Thierry Cens, Matthieu Rousset, Andrey Kajava & Pierre-1559; E-mail: Pierre.charnet@crbm.cnrs.fr Running title: Divalent cation selection in LVA/HVA Ca2

Boyer, Edmond

188

Computer Science B.A. Degree Curriculum Chart: 2013-2014  

E-Print Network [OSTI]

Computer Science B.A. Degree Curriculum Chart: 2013-2014 http://ua.soe.ucsc.edu · advising Comparative Programming Languages CMPS 115 Software Methodology CMPS 122 Computer Security CMPS 140 Artificial Intelligence CMPS 160 Computer Graphics CMPS 180 Database Systems CMPE 110 Computer Architecture 2. Students

Stuart, Josh

189

Computer Science B.A. Degree 2014-2015 Curriculum Chart  

E-Print Network [OSTI]

Computer Science B.A. Degree 2014-2015 Curriculum Chart CMPS 12B/M Data Structures *CMPS 13H to Prog: Java CMPS 11 Intermediate Programming *CMPE 13/L Computer Systems and C Programming OR OR *CMPE to Analysis of Algorithms CMPS 140 Artificial Intelligence CMPS 104A Compiler Design CMPS 160 Computer

Stuart, Josh

190

Internal conversion coefficients in (134)Cs, (137)Ba, and (139)La: A precise test of theory  

E-Print Network [OSTI]

Recently we measured the ratio of K-shell internal conversion coefficients, alpha(K), for the 127.5-keV E3 transition in (134)Cs and the 661.7-keV M4 transition in (137)Ba. We here report a measurement of the 165.9-keV M1 transition in (139)La...

Nica, N.; Hardy, John C.; Iacob, V. E.; Balonek, C.; Trzhaskovskaya, M. B.

2008-01-01T23:59:59.000Z

191

Department of Mechanical Engineering University of Bath, Bath BA2 7AY, UK  

E-Print Network [OSTI]

. The balance between activities has shifted through the years with an increasing emphasis on research), and today as City of Bristol College #12;Department of Mechanical Engineering University of Bath, Bath BA2 7 vision and energy. Ted retired in 1987, and was succeeded as Director by Cliff Burrows. In 1992 Kevin

Burton, Geoffrey R.

192

BA in CHEMISTRY (692827) MAP Sheet Department of Chemistry and Biochemistry  

E-Print Network [OSTI]

BA in CHEMISTRY (692827) MAP Sheet Department of Chemistry and Biochemistry For students entering Chemistry and Biochemistry Department requires the final 10 hours of required chemistry credit to be taken for graduation. Complete the following: Chem 111* Honors Principles of Chemistry Chem 112 Principles of Chemistry

Seamons, Kent E.

193

BA in CHEMISTRY (692827) MAP Sheet Department of Chemistry and Biochemistry  

E-Print Network [OSTI]

BA in CHEMISTRY (692827) MAP Sheet Department of Chemistry and Biochemistry For students entering in major courses. --The Chemistry and Biochemistry Department requires the final 10 hours of required chemistry credit to be taken in residence at BYU for this degree program. These hours may also go toward BYU

Seamons, Kent E.

194

B.A. Master of Architecture Plan (173 credits) Year 1 (32-33 credits)  

E-Print Network [OSTI]

B.A. ­ Master of Architecture Plan (173 credits) Year 1 (32-33 credits) Fall (16 credits) Spring (16-17 credits) ARCH 103 Introduction to Architecture (3) BDS 102 Thinking & Making Studio II (3) ARCH Culture of Building Technology (3) ARCH 630 Theory & Context (3) ARCH 530 Environmental Systems I (3

195

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

E-Print Network [OSTI]

211Introduction to Engineering Computation STAT310Probability and Statistics STAT410Introduction263 Statistics The George R. Brown School of Engineering Degrees Offered: BA, MStat, MA, PhD Course engineering, computational and applied mathematics, managerial studies, mathematics, political science

Richards-Kortum, Rebecca

196

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

E-Print Network [OSTI]

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

Hammerton, James

197

Atomistic Study of Doped BaCeO3: Dopant Site-Selectivity and Cation Nonstoichiometry  

E-Print Network [OSTI]

of Technology, Pasadena, California 91125, and Materials Chemistry Group, Chemistry DiVision, Uni, the trivalent dopants are assumed to occupy the Ce4+ -site, which introduces oxygen vacancies partitioning over both Ba and Ce sites. Such partitioning reduces the concentration of oxygen vacancies, which

Haile, Sossina M.

198

Synthesis and Structure Determination of Ferromagnetic Semiconductors LaAMnSnO6 (A = Sr Ba)  

SciTech Connect (OSTI)

LaAMnSnO{sub 6} (A = Sr, Ba) have been synthesized by high temperature solid-state reactions under dynamic 1% H{sub 2}/Ar flow. Rietveld refinements on room temperature powder X-ray diffraction data indicate that LaSrMnSnO{sub 6} crystallizes in the GdFeO{sub 3}-structure, with space group Pnma and, combined with transmission electron microscopy, LaBaMnSnO{sub 6} in Imma. Both space groups are common in disordered double-perovskites. The Mn{sup 3+} and Sn{sup 4+} ions whose valence states were confirmed by X-ray absorption spectroscopy, are completely disordered over the B-sites and the BO{sub 6} octahedra are slightly distorted. LaAMnSnO{sub 6} are ferromagnetic semiconductors with a T{sub C} = 83 K for the Sr- and 66 K for the Ba-compound. The title compounds, together with the previously reported LaCaMnSnO{sub 6} provide an interesting example of progression from Pnma to Imma as the tolerance factor increases. An analysis of the relationship between space group and tolerance factor for the series LaAMnMO{sub 6} (A = Ca, Sr, Ba; M = Sn, Ru) provides a better understanding of the symmetry determination for double perovskites.

T Yang; T Perkisas; J Hadermann; M Croft; A Ignatov; M Greenblatt

2011-12-31T23:59:59.000Z

199

Test of internal-conversion theory with measurements in Cs-134 and Ba-137  

E-Print Network [OSTI]

We have measured the ratio of K-shell internal conversion coefficients, alpha(K), for the 127.5-keV E3 transition in Cs-134 and the 661.7-keV M4 transition in Ba-137. Previous measurements of these alpha(K) values led to a ratio that differed from...

Nica, N.; Hardy, John C.; Iacob, V. E.; Rockwell, W. E.; Trzhaskovskaya, M. B.

2007-01-01T23:59:59.000Z

200

Thermodynamic model for the solubility of BaSeO4(cr) in the aqueous Ba2+-SeO42--Na+-H+-OH--H2O system: Extending to high selenate concentrations  

SciTech Connect (OSTI)

The solubility of Ba(SeO4, SO4) precipitates was determined as a function of the BaSeO4 mole fractions, ranging from 0.0015 to 0.3830, and time with an equilibration period extending to as long as 302 days. Equilibrium/steady state conditions in this system are reached in ? 65 days. Pitzers ion interaction model was used to calculate solid and aqueous phase activity coefficients. Thermodynamic analyses showed that the data do not satisfy Gibbs-Duhem equation, thereby demonstrating that a single-solid solution phase does not control both the selenate and sulfate concentrations. Our extensive data with log10 [Ba]) ranging from -3.6 to -5.9 mol.kg-1, log10 [SeO4]) ranging from -3.6 to -5.2 mol.kg-1, and log10 [SO4] ranging from -4.0 to -5.3 mol.kg-1 can be explained with the formation of an ideal BaSeO4 solid solution phase that controls the selenium concentrations and a slightly disordered/less-crystalline BaSO4(s) (log10 K0sp = -9.5 instead of -10.05 for barite) that controls the sulfate concentrations. In these experiments the BaSO4 component of the solid solution phase never reaches thermodynamic equilibrium with the aqueous phase. Thermodynamic interpretations of the data show that both the ideal BaSeO4 solid solution phase and less-crystalline BaSO4(s) phase are in equilibrium with each other in the entire range of BaSeO4 mole fractions investigated in this study.

Rai, Dhanpat; Felmy, Andrew R.; Moore, Dean A.; Kitamura, Akira; Yoshikawa, Hideki; Doi, Reisuke; Yoshida, Yasushi

2014-09-15T23:59:59.000Z

Note: This page contains sample records for the topic "ba sin gr" 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

Synthesis, structural and magnetic characterisation of the fully fluorinated compound 6H-BaFeO{sub 2}F  

SciTech Connect (OSTI)

The compound 6H-BaFeO{sub 2}F (P6{sub 3}/mmc) was synthesised by the low temperature fluorination of 6H-BaFeO{sub 3-d} using polyvinylidenedifluoride (PVDF) as a fluorination agent. Structural characterisation by XRD and NPD suggests that the local positions of the oxygen and fluorine atoms vary with no evidence for ordering on the anion sites. This compound shows antiferromagnetic ordering at room temperature with antiparallel alignment of the magnetic moments along the c-axis. The use of PVDF also allows the possibility of tuning the fluorine content in materials of composition 6H-BaFeO{sub 3-d}F{sub y} to any value of 0BaFeO{sub 2}F. Highlights: Black-Right-Pointing-Pointer The crystal structure of the hexagonal perovskite phase 6H-BaFeO{sub 2}F. Black-Right-Pointing-Pointer H-BaFeO{sub 2}F and 6H-BaFeO{sub 3-d}F{sub y} were prepared via low temperature fluorination using PVDF. Black-Right-Pointing-Pointer A structural investigation of the compounds BaFeO{sub 2}F is presented in detail. Black-Right-Pointing-Pointer This analysis suggests differences for the local coordination of O{sup 2-} and F{sup -} anions. Black-Right-Pointing-Pointer H-BaFeO{sub 2}F shows antiferromagnetic ordering at 300 K. Black-Right-Pointing-Pointer The magnetic moments align parallel to the a-axis.

Clemens, Oliver, E-mail: oliverclemens@online.de [School of Chemistry, University of Birmingham, Birmingham B15 2TT (United Kingdom)] [School of Chemistry, University of Birmingham, Birmingham B15 2TT (United Kingdom); Wright, Adrian J.; Berry, Frank J. [School of Chemistry, University of Birmingham, Birmingham B15 2TT (United Kingdom)] [School of Chemistry, University of Birmingham, Birmingham B15 2TT (United Kingdom); Smith, Ronald I. [ISIS Facility, Rutherford Appleton Laboratory, Harwell Oxford, Didcot, OX11 0QX (United Kingdom)] [ISIS Facility, Rutherford Appleton Laboratory, Harwell Oxford, Didcot, OX11 0QX (United Kingdom); Slater, Peter R. [School of Chemistry, University of Birmingham, Birmingham B15 2TT (United Kingdom)] [School of Chemistry, University of Birmingham, Birmingham B15 2TT (United Kingdom)

2013-02-15T23:59:59.000Z

202

Synthesis, structural and magnetic characterisation of the fluorinated compound 15R-BaFeO{sub 2}F  

SciTech Connect (OSTI)

The compounds 15R-BaFeO{sub 2}F and 15R-BaFeO{sub 2.27}F{sub 0.5} have been synthesised by the low temperature fluorination of 15R-BaFeO{sub 3?d}F{sub 0.2} using polyvinylidenedifluoride (PVDF) as a fluorination agent. The materials have been structurally characterised by Rietveld analysis of the X-ray- and HRPD-powder neutron diffraction data. A detailed analysis of bond valence sums suggests that the oxide and fluoride ions order on the different anion sites. A reinvestigation of our recently published structure (Clemens et al., 2013) [34] of 6H-BaFeO{sub 2}F is also reported and incorporation of fluoride in h-type layers is also confirmed in this compound. The magnetic moments for 15R-BaFeO{sub 2}F and 15R-BaFeO{sub 2.25}F{sub 0.5} align in the a/b-plane with antiferromagnetic alignment of the moments between adjacent layers, and are flipped by 90 as compared to the precursor compound. 15R-BaFeO{sub 2}F exhibits very robust antiferromagnetism with a Nel temperature between 300 and 400 C. - Graphical abstract: The crystal and magnetic structure of the perovskite phase 15R-BaFeO{sub 2}F. - Highlights: 15R-BaFeO{sub 2}F and 15R-BaFeO{sub 2.27}F{sub 0.5}were prepared via low temperature fluorination using PVDF. A structural investigation of the compounds BaFeO{sub 2}F is presented in detail. This analysis suggests ordering of O{sup 2?} and F{sup ?} anions between different layers. 15R-BaFeO{sub 2}F shows antiferromagnetic ordering at 300 K with T{sub N} ?300400 C. The magnetic moments align in the a/b-plane.

Clemens, Oliver, E-mail: oliverclemens@online.de [School of Chemistry, The University of Birmingham, Birmingham B15 2TT (United Kingdom); Berry, Frank J. [School of Chemistry, The University of Birmingham, Birmingham B15 2TT (United Kingdom); Bauer, Jessica [Anorganische Festkrperchemie, Universitt des Saarlandes, Am Markt, Zeile 3, 66125 Saarbrcken (Germany); Wright, Adrian J. [School of Chemistry, The University of Birmingham, Birmingham B15 2TT (United Kingdom); Knight, Kevin S. [ISIS Facility, Rutherford Appleton Laboratory, Harwell Oxford, Didcot OX11 0QX (United Kingdom); Slater, Peter R. [School of Chemistry, The University of Birmingham, Birmingham B15 2TT (United Kingdom)

2013-07-15T23:59:59.000Z

203

Data:3a9b7691-e6ba-4286-9cce-e755902ae9ba | 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 No revision has beene755902ae9ba No revision

204

Sympathetic cooling of the Ba{sup +} ion by collisions with ultracold Rb atoms: Theoretical prospects  

SciTech Connect (OSTI)

State-of-the-art ab initio techniques have been applied to compute the potential energy curves of the (BaRb){sup +} molecular ion in the Born-Oppenheimer approximation for the singlet and triplet states dissociating into the ground-state {sup 1}S Rb{sup +} ion and the Ba atom in the ground {sup 1}S state or the lowest singlet or triplet d excited states, and for the singlet and triplet states dissociating into the ground-state {sup 2}S Rb atom and the ground-state {sup 2}S Ba{sup +} ion. The ground-state potential energy was obtained with the coupled-cluster method restricted to single, double, and nonperturbative triple excitations. The first triplet states in the {Sigma}, {Pi}, and {Delta} symmetries were computed with the restricted open-shell coupled-cluster method restricted to single, double, and nonperturbative triple excitations. All other excited-state potential energy curves were computed using the equation of motion approach within the coupled-cluster singles, doubles, and linear triples framework. The long-range coefficients describing the electrostatic, induction, and dispersion interactions at large interatomic distances are also reported. The electric transition dipole moments governing the x {sup 1{Sigma}{yields}1{Sigma}},{sup 1{Pi}} transitions have been obtained as the first residue of the polarization propagator computed with the linear response coupled-cluster method restricted to single and double excitations. Nonadiabatic radial and angular coupling matrix elements as well as the spin-orbit coupling matrix elements have been evaluated using the multireference configuration-interaction method restricted to single and double excitations with a large active space. With these couplings, the spin-orbit-coupled (relativistic) potential energy curves for the 0{sup +} and 1 states relevant for the running experiments have been obtained. Finally, relativistic transition moments and nonadiabatic coupling matrix elements were obtained from the nonrelativistic results and spin-orbit eigenvectors. The electronic structure input has been employed in the single-channel scattering calculations of the collisional cross sections between the Ba{sup +} ion and Rb atom. Both nonrelativistic and relativistic potentials were used in these calculations. Our results show that the inelastic cross section corresponding to the charge transfer from the Rb atom to the Ba{sup +} ion is much smaller than the elastic one over a wide range of energies up to 1 mK. This suggests that sympathetic cooling of the Ba{sup +} ion by collisions with ultracold Rb atoms should be possible.

Krych, Michal; Skomorowski, Wojciech; Pawlowski, Filip; Moszynski, Robert; Idziaszek, Zbigniew [Institute of Theoretical Physics, Department of Physics, University of Warsaw, Hoza 69, 00-681 Warsaw (Poland) and Quantum Chemistry Laboratory, Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw (Poland); Quantum Chemistry Laboratory, Department of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw (Poland); Institute of Theoretical Physics, Department of Physics, University of Warsaw, Hoza 69, 00-681 Warsaw (Poland) and Institut de Physique de Rennes, UMR 6251 du CNRS and Universite de Rennes I, F-35042 Rennes Cedex (France)

2011-03-15T23:59:59.000Z

205

Indirect measurement of $\\sin^2 ?_W$ (or $M_W$) using $?^+?^-$ pairs from $?^*/Z$ bosons produced in $p\\bar{p}$ collisions at a center-of-momentum energy of 1.96 TeV  

E-Print Network [OSTI]

Drell-Yan lepton pairs are produced in the process $p\\bar{p} \\rightarrow \\mu^+\\mu^- + X$ through an intermediate $\\gamma^*/Z$ boson. The forward-backward asymmetry in the polar-angle distribution of the $\\mu^-$ as a function of the invariant mass of the $\\mu^+\\mu^-$ pair is used to obtain the effective leptonic determination $\\sin^2 \\theta^{lept}_{eff}$ of the electroweak-mixing parameter $\\sin^2 \\theta_W$, from which the value of $\\sin^2 \\theta_W$ is derived assuming the standard model. The measurement sample, recorded by the Collider Detector at Fermilab (CDF), corresponds to 9.2 fb-1 of integrated luminosity from $p\\bar{p}$ collisions at a center-of-momentum energy of 1.96 TeV, and is the full CDF Run II data set. The value of $\\sin^2 \\theta^{lept}_{eff}$ is found to be 0.2315 +- 0.0010, where statistical and systematic uncertainties are combined in quadrature. When interpreted within the context of the standard model using the on-shell renormalization scheme, where $\\sin^2 \\theta_W = 1 - M_W^2/M_Z^2$, the measurement yields $\\sin^2 \\theta_W$ = 0.2233 +- 0.0009, or equivalently a W-boson mass of 80.365 +- 0.047 GeV/c^2. The value of the W-boson mass is in agreement with previous determinations in electron-positron collisions and at the Tevatron collider.

CDF Collaboration; T. Aaltonen; S. Amerio; D. Amidei; A. Anastassov; A. Annovi; J. Antos; G. Apollinari; J. A. Appel; T. Arisawa; A. Artikov; J. Asaadi; W. Ashmanskas; B. Auerbach; A. Aurisano; F. Azfar; W. Badgett; T. Bae; A. Barbaro-Galtieri; V. E. Barnes; B. A. Barnett; P. Barria; P. Bartos; M. Bauce; F. Bedeschi; S. Behari; G. Bellettini; J. Bellinger; D. Benjamin; A. Beretvas; A. Bhatti; K. R. Bland; B. Blumenfeld; A. Bocci; A. Bodek; D. Bortoletto; J. Boudreau; A. Boveia; L. Brigliadori; C. Bromberg; E. Brucken; J. Budagov; H. S. Budd; K. Burkett; G. Busetto; P. Bussey; P. Butti; A. Buzatu; A. Calamba; S. Camarda; M. Campanelli; F. Canelli; B. Carls; D. Carlsmith; R. Carosi; S. Carrillo; B. Casal; M. Casarsa; A. Castro; P. Catastini; D. Cauz; V. Cavaliere; M. Cavalli-Sforza; A. Cerri; L. Cerrito; Y. C. Chen; M. Chertok; G. Chiarelli; G. Chlachidze; K. Cho; D. Chokheli; A. Clark; C. Clarke; M. E. Convery; J. Conway; M. Corbo; M. Cordelli; C. A. Cox; D. J. Cox; M. Cremonesi; D. Cruz; J. Cuevas; R. Culbertson; N. d'Ascenzo; M. Datta; P. de Barbaro; L. Demortier; L. Marchese; M. Deninno; F. Devoto; M. D'Errico; A. Di Canto; B. Di Ruzza; J. R. Dittmann; M. D'Onofrio; S. Donati; M. Dorigo; A. Driutti; K. Ebina; R. Edgar; A. Elagin; R. Erbacher; S. Errede; B. Esham; S. Farrington; J. P. Fernndez Ramos; R. Field; G. Flanagan; R. Forrest; M. Franklin; J. C. Freeman; H. Frisch; Y. Funakoshi; C. Galloni; A. F. Garfinkel; P. Garosi; H. Gerberich; E. Gerchtein; S. Giagu; V. Giakoumopoulou; K. Gibson; C. M. Ginsburg; N. Giokaris; P. Giromini; G. Giurgiu; V. Glagolev; D. Glenzinski; M. Gold; D. Goldin; A. Golossanov; G. Gomez; G. Gomez-Ceballos; M. Goncharov; O. Gonzlez Lpez; I. Gorelov; A. T. Goshaw; K. Goulianos; E. Gramellini; S. Grinstein; C. Grosso-Pilcher; R. C. Group; J. Guimaraes da Costa; S. R. Hahn; J. Y. Han; F. Happacher; K. Hara; M. Hare; R. F. Harr; T. Harrington-Taber; K. Hatakeyama; C. Hays; J. Heinrich; M. Herndon; A. Hocker; Z. Hong; W. Hopkins; S. Hou; R. E. Hughes; U. Husemann; M. Hussein; J. Huston; G. Introzzi; M. Iori; A. Ivanov; E. James; D. Jang; B. Jayatilaka; E. J. Jeon; S. Jindariani; M. Jones; K. K. Joo; S. Y. Jun; T. R. Junk; M. Kambeitz; T. Kamon; P. E. Karchin; A. Kasmi; Y. Kato; W. Ketchum; J. Keung; B. Kilminster; D. H. Kim; H. S. Kim; J. E. Kim; M. J. Kim; S. B. Kim; S. H. Kim; Y. K. Kim; Y. J. Kim; N. Kimura; M. Kirby; K. Knoepfel; K. Kondo; D. J. Kong; J. Konigsberg; A. V. Kotwal; M. Kreps; J. Kroll; M. Kruse; T. Kuhr; M. Kurata; A. T. Laasanen; S. Lammel; M. Lancaster; K. Lannon; G. Latino; H. S. Lee; J. S. Lee; S. Leo; S. Leone; J. D. Lewis; A. Limosani; E. Lipeles; A. Lister; H. Liu; Q. Liu; T. Liu; S. Lockwitz; A. Loginov; A. Luc; D. Lucchesi; J. Lueck; P. Lujan; P. Lukens; G. Lungu; J. Lys; R. Lysak; R. Madrak; P. Maestro; S. Malik; G. Manca; A. Manousakis-Katsikakis; F. Margaroli; P. Marino; M. Martnez; K. Matera; M. E. Mattson; A. Mazzacane; P. Mazzanti; R. McNulty; A. Mehta; P. Mehtala; C. Mesropian; T. Miao; D. Mietlicki; A. Mitra; H. Miyake; S. Moed; N. Moggi; C. S. Moon; R. Moore; M. J. Morello; A. Mukherjee; Th. Muller; P. Murat; M. Mussini; J. Nachtman; Y. Nagai; J. Naganoma; I. Nakano; A. Napier; J. Nett; C. Neu; T. Nigmanov; L. Nodulman; S. Y. Noh; O. Norniella; L. Oakes; S. H. Oh; Y. D. Oh; I. Oksuzian; T. Okusawa; R. Orava; L. Ortolan; C. Pagliarone; E. Palencia; P. Palni; V. Papadimitriou; W. Parker; G. Pauletta; M. Paulini; C. Paus; T. J. Phillips; G. Piacentino; E. Pianori; J. Pilot; K. Pitts; C. Plager; L. Pondrom; S. Poprocki; K. Potamianos; F. Prokoshin; A. Pranko; F. Ptohos; G. Punzi; N. Ranjan; I. Redondo Fernndez; P. Renton; M. Rescigno; F. Rimondi; L. Ristori; A. Robson; T. Rodriguez; S. Rolli; M. Ronzani; R. Roser; J. L. Rosner; F. Ruffini; A. Ruiz; J. Russ; V. Rusu; W. K. Sakumoto; Y. Sakurai; L. Santi; K. Sato; V. Saveliev; A. Savoy-Navarro; P. Schlabach; E. E. Schmidt; T. Schwarz; L. Scodellaro; F. Scuri; S. Seidel; Y. Seiya; A. Semenov; F. Sforza; S. Z. Shalhout; T. Shears; P. F. Shepard; M. Shimojima; M. Shochet; I. Shreyber-Tecker; A. Simonenko; K. Sliwa; J. R. Smith; F. D. Snider; V. Sorin; H. Song; M. Stancari; R. St. Denis; D. Stentz; J. Strologas; Y. Sudo; A. Sukhanov; I. Suslov; K. Takemasa; Y. Takeuchi; J. Tang; M. Tecchio; P. K. Teng; J. Thom; E. Thomson; V. Thukral; D. Toback; S. Tokar; K. Tollefson; T. Tomura; D. Tonelli; S. Torre; D. Torretta; P. Totaro; M. Trovato; F. Ukegawa; S. Uozumi; F. Vzquez; G. Velev; C. Vellidis; C. Vernieri; M. Vidal; R. Vilar; J. Vizn; M. Vogel; G. Volpi; P. Wagner; R. Wallny; S. M. Wang; D. Waters; W. C. Wester III; D. Whiteson; A. B. Wicklund; S. Wilbur; H. H. Williams; J. S. Wilson; P. Wilson; B. L. Winer; P. Wittich; S. Wolbers; H. Wolfe; T. Wright; X. Wu; Z. Wu; K. Yamamoto; D. Yamato; T. Yang; U. K. Yang; Y. C. Yang; W. -M. Yao; G. P. Yeh; K. Yi; J. Yoh; K. Yorita; T. Yoshida; G. B. Yu

2014-02-28T23:59:59.000Z

206

EffectsofTransitionMetalSubstitutionsontheIncommensurabilityandSpinFluctuationsinBaFe2As2byElasticandInelasticNeutronScattering  

SciTech Connect (OSTI)

Thespin uctuationspectrafromnonsuperconductingCu-substituted,andsuperconductingCo-substituted,BaFe2As2arecomparedquantitativelybyinelasticneutronscatteringmeasurementsandarefoundtobeindistinguishable.Whereasdiffractionstudiesshowtheappearanceofincommensu-ratespin-densitywaveorderinCoandNisubstitutedsamples,themagneticphasediagramforCusubstitutiondoesnotdisplayincommensurateorder,demonstratingthatsimpleelectroncountingbasedonrigid-bandconceptsisinvalid.Theseresults,supportedbytheoreticalcalculations,suggestthatsubstitu-tionalimpurityeffectsintheFeplaneplayasigni cantroleincontrollingmagnetismandtheappearanceofsuperconductivity,withCudistinguishedbyenhancedimpurityscatteringandsplit-bandbehavior.

Kim, M. G. [Ames Laboratory and Iowa State University; Lamsal, J. [Ames Laboratory and Iowa State University; Heitmann, T. W. [University of Missouri; Tucker, G. S. [Ames Laboratory and Iowa State University; Pratt, Daniel [Ames Laboratory and Iowa State University; Khan, S. N. [Ames Laboratory; Lee, Y. B. [Ames Laboratory and Iowa State University; Alam, A. [Ames Laboratory; Thaler, A. [Ames Laboratory and Iowa State University; Ni, N [Ames Laboratory and Iowa State University; Ran, S. [Ames Laboratory and Iowa State University; Budko, S L [Ames Laboratory and Iowa State University; Marty, Karol J [ORNL; Lumsden, Mark D [ORNL; Canfield, Paul [Ames Laboratory and Iowa State University; Harmon, B. N. [Ames Laboratory; Johnson, D. D. [Ames Laboratory and Iowa State University; Kreyssig, A. [Ames Laboratory and Iowa State University; Mcqueeney, R J [Ames Laboratory and Iowa State University; Goldman, A. I. [Ames Laboratory and Iowa State University

2012-01-01T23:59:59.000Z

207

Infrared-optical spectroscopy of transparent conducting perovskite (La,Ba)SnO{sub 3} thin films  

SciTech Connect (OSTI)

We have performed optical transmission, reflection, spectroscopic ellipsometry, and Hall effect measurements on the electron-doped La{sub x}Ba{sub 1x}SnO{sub 3} (x?=?0.04) transparent thin films. From the infrared Drude response and plasma frequency analysis we determine the effective mass of the conducting electron m*?=?0.35m{sub 0}. In the visible-UV region the optical band gap shifts to high energy in (La,Ba)SnO{sub 3} by 0.18?eV compared with undoped BaSnO{sub 3} which, in the context of the Burstein-Moss analysis, is consistent with the infrared-m*. m* of BaSnO{sub 3} is compared with other existing transparent conducting oxides (TCO), and implication on search for high-mobility TCO compounds is discussed.

Seo, Dongmin; Yu, Kwangnam; Jun Chang, Young; Choi, E. J., E-mail: echoi@uos.ac.kr [Department of Physics, University of Seoul, Seoul 130-743 (Korea, Republic of); Sohn, Egon; Hoon Kim, Kee [Center for Novel States of Complex Materials Research, Department of Physics and Astronomy, Seoul National University, Seoul 151-747 (Korea, Republic of)

2014-01-13T23:59:59.000Z

208

An, Yanming, Professor, Languages. BA, 1982, MA, 1985, Fudan University (China); PhD, University of Michigan,  

E-Print Network [OSTI]

, 1997 Andrews, Phillip A., Assistant Professor, Military Leadership; Major, U.S. Army. BA, University, 1978, PhD, 1985, University of Connecticut Armstrong, James B., Adjunct Professor, School

Stuart, Steven J.

209

Angle-resolved photoemission spectroscopy study of HgBa[subscript 2]CuO[subscript 4+?  

E-Print Network [OSTI]

HgBa[subscript 2]CuO[subscript 4+?]. (Hg1201) has been shown to be a model cuprate for scattering, optical, and transport experiments, but angle-resolved photoemission spectroscopy (ARPES) data are still lacking owing to ...

Chan, M. K.

210

The elastic and piezoelectric properties of tungsten bronze ferroelectric crystals ,,Sr0.7Ba0.3...2NaNb5O15 and ,,Sr0.3Ba0.7...2NaNb5O15  

E-Print Network [OSTI]

The elastic and piezoelectric properties of tungsten bronze ferroelectric crystals ,,Sr0.7Ba0 and piezoelectric constants of tungsten bronze ferroelectric crystals Sr0.7Ba0.3 2NaNb5O15 SBNN70 and Sr0.3Ba0.7 2Na. INTRODUCTION Ferroelectric crystals with tungsten bronze structure are another attractive family beside

Cao, Wenwu

211

Single crystal growth and characterization of the large-unit-cell compound Cu13Ba  

SciTech Connect (OSTI)

Single crystals of Cu13Ba were successfully grown out of BaCu self flux. Temperature dependent magnetization, M (T ), electrical resistivity, ?(T)?(T), and specific heat, Cp(T)Cp(T), data are reported. Isothermal magnetization measurements, M(H)M(H), show clear de Haas-van Alphen oscillations at T = 2 K for applied fields as low as View the MathML source?0H=1T. An anomalous behavior of the magnetic susceptibility is observed up to T ? 50 K reflecting the effect of de Haas-van Alphen oscillations at fairly high temperatures. The field- and temperature-dependencies of the magnetization indicate the presence of diluted magnetic impurities with a concentration of the order of 0.01 at.%. Accordingly, the minimum and lower temperature rise observed in the electrical resistivity at and below T = 15 K is attributed to the Kondo-impurity effect.

Jesche, Anton [Ames Laboratory; Budko, Serguei L. [Ames Laboratory; Canfield, Paul C. [Ames Laboratory

2013-10-31T23:59:59.000Z

212

Effect of 3d doping on the electronic structure of BaFe2As2  

SciTech Connect (OSTI)

The electronic structure of BaFe2As2 doped with Co, Ni and Cu has been studied by a variety of experimental and theoretical methods, but a clear picture of the dopant 3d states has not yet emerged. Herein we provide experimental evidence of the distribution of Co, Ni and Cu 3d states in the valence band. We conclude that the Co and Ni 3d states provide additional free carriers to the Fermi level, while the Cu 3d states are found at the bottom of the valence band in a localized 3d10 shell. These findings help shed light on why superconductivity can occur in BaFe2As2 doped with Co and Ni but not Cu.

McLeod, John A.; Buling, A.; Green, R.J.; Boyko, T.D.; Skorikov, N.A.; Kurmaev, E.Z.; Neumann, M.; Finkelstein, L.D.; Ni, Ni; Thaler, Alexander; Budko, Serguei L.; Canfield, Paul; Moewes, A.

2012-04-25T23:59:59.000Z

213

Superconductivity at 34 K in the K/Ba/Bi/O system  

SciTech Connect (OSTI)

The critical temperature for superconductivity in the (Ba, K)BiO{sub 3} system has been increased to 34 K. With each such increase of T{sub c} in a system containing no copper it becomes increasingly likely that the mechanisms for superconductivity in the Bi-based and the Cu-based oxide superconductors are very closely related to each other. Since the (Ba, K)BiO{sub 3} superconductors possess the cubic perovskite structure, the mechanism for high T{sub c} would then not related directly to the two-dimensional character of the copper oxide superconductors or to the magnetism in such systems. 12 refs., 1 fig.

Jones, N.L.; Parise, J.B.; Flippen, R.B.; Sleight, A.W. (E.I. DuPont de Nemours and Co., Wilmington, DE (USA))

1989-02-01T23:59:59.000Z

214

Optical properties of Pr-doped BaY{sub 2}F{sub 8}  

SciTech Connect (OSTI)

Crystalline samples of Pr-doped BaY{sub 2}F{sub 8} (BaYF) were prepared by zone melting technique. The pure phase obtained was identified by X-ray diffraction measurement. Optical absorption result was evaluated and it showed that the formation of the absorption bands can be connected to color centers generated by radiation in the matrix. Radioluminescence emission measurements after excitation by X-ray showed that the material exhibited components responsible for long lasting phosphorescence. Short decay times were also evaluated, the measurements showed a fast component around 70?ns associated to the 4f{sup 1}5d{sup 1} ? 4f{sup 2} transition of the Pr{sup 3+} ion. The Thermoluminescence (TL) results indicate the presence of two trapping centers.

Andrade, Adriano B., E-mail: abandrade1@gmail.com; Mello, Ana C. S. de; Valerio, Mrio E. G. [Physics Department, Federal University of Sergipe, 49100-000 So Cristovo, SE (Brazil); Rezende, Marcos V. dos S. [Physics Department, Federal University of Sergipe, 49500-000 Itabaiana, SE (Brazil); Baldochi, Sonia L. [IPEN-CNEN/SP, CEP 11049, 05422-970 So Paulo, SP (Brazil)

2014-08-07T23:59:59.000Z

215

All undergraduate/Bachelor degrees BSc/BA/BEng/MEng 13,000 Childhood Studies MA 12,500  

E-Print Network [OSTI]

All undergraduate/Bachelor degrees BSc/BA/BEng/MEng £13,000 Childhood Studies MA £12,500 Developmental and Therapeutic Play MA/PGDip/PGCert £12,500 Health Care Management MSc £13,000 Public Health/BA/BEng/MEng £11,750 Ancient Egyptian Culture MA £12,500 Ancient History & Classical Culture MA £12,500 Ancient

Harman, Neal.A.

216

Zinc ferrite nanoparticles as MRI contrast agentsw Carlos Ba rcena,a  

E-Print Network [OSTI]

Zinc ferrite nanoparticles as MRI contrast agentsw Carlos Ba´ rcena,a Amandeep K. Sra,a Girija S, a series of spinel-structured ferrites, MFe2O4 (M = Mn2+ , Fe2+ , Co2+ , Ni2+ ), were reported as novel MRI.e., Mn2+ occupies both A and B sites), whereas the other metal ferrites have an inverse spinel structure

Gao, Jinming

217

Lifshitz Transition and Chemical Instabilities in Ba1 xKxFe2As2 Superconductors  

SciTech Connect (OSTI)

Forsolid-solutionBa1 xKxFe2As2FermisurfaceevolutionismappedviaBlochspectralfunctionscalculatedusingdensityfunctionaltheoryimplementedinKorringa-Kohn-Rostokermultiplescatteringtheorywiththecoherent-potentialapproximation.Spectralfunctionsrevealelectronicdispersion,topology,orbitalcharacter,andbroadening(electron-lifetimeeffects)duetochemicaldisorder.Dissolutionofelectroncylindersoccursnearx 0.9withanonuniform,topological(Lifshitz)transition,reducingtheinterbandinteractions;yetthedispersionmaintainsitsdxzordyzcharacter.Formationenergiesindicatealloyingatx 0.35,asobserved,andatendencyforsegregationontheK-rich(x>0.6)side,explainingthedifficultyofcontrollingsamplequalityandtheconflictingresultsbetweencharacterizedelectronicstructures.OurresultsrevealFermisurfacetransitionsinalloyedsamplesthatinfluencestonodalsuperconductivityandsuggesttheoriginfordeviationsofcommontrendsinFe-basedsuperconductors,suchasBud ko-Ni-Canfieldscaling.

Khan, Suffian N. [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign; Johnson, Duane D. [University of Illinois, Urbana-Champaign] [University of Illinois, Urbana-Champaign

2014-01-01T23:59:59.000Z

218

Two- and Three-Body Charmless B Decays at BaBar  

SciTech Connect (OSTI)

We report recent measurements of rare charmless B decays performed by BaBar. The results are based on the final BaBar dataset of 424 fb{sup -1} collected at the PEP-II B-factory based at the SLAC National Accelerator Laboratory. The study of rare B decays is a key ingredient to meet two of the main goals of the B-factories: assessing the validity of the Cabibbo-Kobayashi-Maskawa (CKM) picture of CP-violation by precisely measuring the elements of the Unitarity Triangle (UT), and searching for hints of New Physics (NP), or otherwise constraining NP scenarios, in processes which are suppressed in the Standard Model (SM). In loop processes, in particular, NP at some higher energy scale may manifest itself in the low energy effective theory as new couplings, such as those introduced by new very massive virtual particles in the loop. In NP searches hadronic uncertainties can play a major role, expecially for branching fraction measurements. Many theoretical uncertainties cancel in ratios of amplitudes, and most NP probes are therefore of this kind. In the following sections we report recent measurements, performed by the BaBar Collaboration, that are relevant to NP searches in charmless hadronic B decays.

Stracka, Simone; /Milan U. /INFN, Milan; ,

2012-04-05T23:59:59.000Z

219

Hydrostatic pressure (8 GPa) dependence of electrical resistivity of BaCo{sub 2}As{sub 2} single crystal  

SciTech Connect (OSTI)

Graphical abstract: - Highlights: Single crystals of BaCo{sub 2}As{sub 2} were grown by CoAs self-flux method. We have studied pressure effects (8 GPa) on dc electrical resistivity of BaCo{sub 2}As{sub 2}. On applied external pressure BaCo{sub 2}As{sub 2} remains a metallic state up to 8 GPa. Superconductivity is absent in BaCo{sub 2}As{sub 2} because of its proximity to ferromagnetism. - Abstract: The pressure dependence of the electrical resistivity of BaCo{sub 2}As{sub 2} single crystal as a function of temperature was measured at ambient and high pressures up to 8 GPa for the first time using cubic anvil high pressure cell. It is observed that at room temperature the resistivity monotonically decreases with increasing pressure and it remains in the metallic state even at an applied pressure of 8 GPa. From the temperature dependence of the resistivity measurements under pressure, we found that superconductivity is absent up to 8 GPa. The value of the electron's scattering factor (A) is found to be large at ambient pressure and it decreases with the application of pressure, indicating that the substantial electron correlation effect of BaCo{sub 2}As{sub 2} is reduced under pressure, revealing a dramatic change of density of states at the Fermi energy.

Ganguli, Chandreyee; Matsubayashi, Kazuyuki; Ohgushi, Kenya [Institute for Solid State Physics, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan); Uwatoko, Yoshiya, E-mail: uwatoko@issp.u-tokyo.ac.jp [Institute for Solid State Physics, The University of Tokyo, Kashiwanoha, Kashiwa, Chiba 277-8581 (Japan); Kanagaraj, Moorthi [Centre for High Pressure Research, School of Physics, Bharathidasan University, Tiruchirappalli 620024 (India); Arumugam, Sonachalam, E-mail: sarumugam1963@yahoo.com [Centre for High Pressure Research, School of Physics, Bharathidasan University, Tiruchirappalli 620024 (India)

2013-10-15T23:59:59.000Z

220

Quarkonium Spectroscopy And Search for New States at BaBar  

SciTech Connect (OSTI)

The BaBar experiment at the PEP-II B-factory gives excellent opportunities for the quarkonium spectroscopy. Investigation of the properties of new states like the X(3872), Y(3940) and Y(4260) are performed aiming to understand their nature. Recent BaBar results will be presented in this paper. At the B-factories charmonium and charmonium-like states are copiously produced via several mechanisms: in B decay (color suppressed b {yields} c transition), double charmonium production (e{sup +}e{sup -} {yields} c{bar c} + c{bar c}), two photons production ({gamma}*{gamma}* {yields} c{bar c}, where the c{bar c} state has positive C-parity) and in initial state radiation (ISR) when the e{sup {+-}} in its initial state emits a photon lowering the effective center of mass energy of the e{sup +}e{sup -} interaction (e{sup +}e{sup -} {yields} {gamma}{sub ISR} + c{bar c}, where the charmonium state has the quantum numbers J{sup PC} = 1{sup -2}). Many new states have been recently discovered at the B-factories, BaBar and Belle, above the D{bar D} threshold in the charmonium energy region. While some of them appear to be consistent with conventional c{sub c} states others do not fit with any expectation. Several interpretations for these states have been proposed: for some of them the mass values suggest that they could be conventional charmonia, but also other interpretations like D{sup 0}{bar D}*{sup 0} molecule or diquark-antidiquark states among many other models have been advanced. Reviews can be found in Refs. [1][2]. In all cases the picture is not completely clear. This situation could be remedied by a coherent search of the decay pattern to D{bar D}, search for production in two-photon fusion and ISR, and of course improving the statistical precision upon the current measurements. The BaBar experiment at the PEP-II asymmetric collider, designed to perform precision measurement of CP violation in the B meson system, has an extensive quarkonium spectroscopy program. Recent BaBar outcomes on the X(3872) and Y(4260) and a new result on the Y(3940) are reported here.

Cibinetto, G.

2011-11-04T23:59:59.000Z

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221

The new barium zinc mercurides Ba{sub 3}ZnHg{sub 10} and BaZn{sub 0.6}Hg{sub 3.4} - Synthesis, crystal and electronic structure  

SciTech Connect (OSTI)

The title compounds Ba{sub 3}ZnHg{sub 10} and BaZn{sub 0.6}Hg{sub 3.4} were synthesized from stoichiometric ratios of the elements in Ta crucibles. Their crystal structures, which both represent new structure types, have been determined using single crystal X-ray data. The structure of Ba{sub 3}ZnHg{sub 10} (orthorhombic, oP28, space group Pmmn, a=701.2(3), b=1706.9(8), c=627.3(3)pm, Z=2, R1=0.0657) contains folded 4{sup 4} Hg nets, where the meshes form the bases of flat rectangular pyramids resembling the structure of BaAl{sub 4}. The flat pyramids are connected via Hg-Zn/Hg bonds, leaving large channels at the folds, in which Ba(1) and Hg(2) atoms alternate. Whereas the remaining Hg/Zn atoms form a covalent 3D network of three- to five-bonded atoms with short M-M distances (273-301 pm; CN 9-11), the Hg(2) atoms in the channels adopt a comparatively large coordination number of 12 and increased distances (317-348 pm) to their Zn/Hg neighbours. In the structure of BaZn{sub 0.6}Hg{sub 3.4} (cubic, cI320, space group I4{sup Macron }3d, a=2025.50(7) pm, Z=64, R1=0.0440), with a chemical composition not much different from that of Ba{sub 3}ZnHg{sub 10}, the Zn/Hg atoms of the mixed positions M(1/2) are arranged in an slightly distorted primitive cubic lattice with a 4 Multiplication-Sign 4 Multiplication-Sign 4 subcell relation to the unit cell. The 24 of the originating 64 cubes contain planar cis tetramers Hg(5,6){sub 4} with Hg in a nearly trigonal planar or tetrahedral coordination. In another 24 of the small cubes, two opposing faces are decorated by Hg(3,4){sub 2} dumbbells, two by Ba(2) atoms respectively. The third type of small cubes are centered by Ba(1) atoms only. The complex 3D polyanionic Hg/Zn network thus formed is compared with the Hg partial structure in Rb{sub 3}Hg{sub 20} applying a group-subgroup relation. Despite their different overall structures, the connectivity of the negatively charged Hg atoms, the rather metallic Zn bonding characteristic (as obtained from FP-LAPW band structure calculations) and the coordination number of 16 for all Ba cations relate the two title compounds. - Graphical abstract: Six of the 64 small sub-cubes of three types (A, B, C) forming the unit cell of the Hg-rich mercuride BaZn{sub 0.6}Hg{sub 3.4}. Highlights: Black-Right-Pointing-Pointer Two new Hg-rich Ba mercurides, both synthesized from the elements in pure phase. Black-Right-Pointing-Pointer BaZn{sub 0.6}HgG{sub 3.4} and Ba{sub 3}ZnHg{sub 10} with new complex structure types. Black-Right-Pointing-Pointer Structure relation to other complex cubic intermetallics. Black-Right-Pointing-Pointer Discussion of covalent and metallic bonding aspects, as found by the structure features and band structure calculations.

Schwarz, Michael; Wendorff, Marco [Institut fuer Anorganische und Analytische Chemie, University of Freiburg, Albertstr. 21, D-79104 Freiburg (Germany)] [Institut fuer Anorganische und Analytische Chemie, University of Freiburg, Albertstr. 21, D-79104 Freiburg (Germany); Roehr, Caroline, E-mail: caroline@ruby.chemie.uni-freiburg.de [Institut fuer Anorganische und Analytische Chemie, University of Freiburg, Albertstr. 21, D-79104 Freiburg (Germany)] [Institut fuer Anorganische und Analytische Chemie, University of Freiburg, Albertstr. 21, D-79104 Freiburg (Germany)

2012-12-15T23:59:59.000Z

222

European Photovoltaic Solar Energy Conference, Valencia, Spain, 6-10 September 2010, 2AO.2.3 EFFECT OF SiN DEPOSITION TEMPERATURE ON SURFACE PASSIVATION OF N-TYPE CZ SILICON  

E-Print Network [OSTI]

25th European Photovoltaic Solar Energy Conference, Valencia, Spain, 6-10 September 2010, 2AO.2N deposition leads to increasing the hydrogen content of the SiN layers. This improves the supply of hydrogen silicon using thermally grown oxide or amorphous films based on hydrogenated silicon compounds has been

223

Characterization of ternary compounds in the BaO:Fe{sub 2}O{sub 3}:TiO{sub 2} system: Ba{sub 6}Fe{sub 45}Ti{sub 17}O{sub 106} and BaFe{sub 11}Ti{sub 3}O{sub 23}  

SciTech Connect (OSTI)

Single crystals of Ba{sub 6}Fe{sub 45}Ti{sub 17}O{sub 106} and BaFe{sub 11}Ti{sub 3}O{sub 23} were obtained as major and minor coproducts, respectively, by slow-cooling an off-stoichiometric BaO:Fe{sub 2}O{sub 3}:TiO{sub 2} melt. The former compound exhibits variable stoichiometry, Ba{sub 6}Fe{sub 48{minus}x}Ti{sub 14+x}O{sub 106}, with the Fe:Ti ratio dependent upon the partial pressure of oxygen. The value of x corresponds to the equivalents of reduction that occur to maintain electroneutrality as the Ti-content increases. When prepared in air, this phase occurs at x = 3 with the stoichiometry Ba{sub 6}Fe{sub 45}Ti{sub 17}O{sub 106}, while in 100% oxygen the x-value approaches zero with the resulting stoichiometry Ba{sub 6}Fe{sub 48}Ti{sub 14}O{sub 106} (all Fe{sup 3+} and Ti{sup 4+}). The structures of Ba{sub 6}Fe{sub 45}Ti{sub 17}O{sub 106} and BaFe{sub 11}Ti{sub 3}O{sub 23} were solved using single-crystal X-ray diffraction methods. Ba{sub 6}Fe{sub 45}Ti{sub 17}O{sub 106} was prepared in polycrystalline form, and further structural details, including accurate Fe/Ti occupancy factors, were determined by a combined refinement using neutron and synchrotron powder diffraction data. (Ba{sub 6}Fe{sub 45}Ti{sub 17}O{sub 106}: Space group C2/m (No 12); a = 19.390(1) {angstrom}, b = 20.260(1) {angstrom}, c = 10.076(1) {angstrom}, {beta} = 105.27(1){degree}; V = 3818.5(3) {angstrom}{sup 3}; Z = 2; {rho}{sub calc} = 5.08 g/cm{sup 3}. Ba{sub 6}Fe{sub 11}Ti{sub 3}O{sub 23}: Space group C2/c (No 15); a = 19.56(1) {angstrom}, b = 8.6614(7) {angstrom}, c = 10.120(1) {angstrom}, {beta} = 105.62(1){degree}; V = 1651.1(3) {angstrom}{sup 3}; Z = 4; {rho}{sub calc} = 5.08 g/cm{sup 3}.) The magnetic behavior of Ba{sub 6}Fe{sub 45}Ti{sub 17}O{sub 106} above room temperature up to 1073 K was found to obey the Curie-Weiss law, which indicated a small effective magnetic moment (34 {mu}{sub B} per mole Ba{sub 6}Fe{sub 45}Ti{sub 17}O{sub 106}) and a large negative temperature intercept ({minus}806 K). Electrical resistivity measurements between room temperature and 120 K revealed nonmetallic behavior with an activation energy on the order of 0.17 eV. At 347 MHz under ambient conditions, Ba{sub 6}Fe{sub 45}Ti{sub 17}O{sub 106} exhibited a relative permittivity of 24 and a dielectric loss tangent of 0.10.

Vanderah, T.A.; Wong-Ng, W.; Toby, B.H.; Shull, R.D.; Roth, R.S. [National Inst. of Standards and Technology, Gaithersburg, MD (United States). Materials Science and Engineering Lab.] [National Inst. of Standards and Technology, Gaithersburg, MD (United States). Materials Science and Engineering Lab.; Browning, V.M. [Naval Research Lab., Washington, DC (United States)] [Naval Research Lab., Washington, DC (United States); Geyer, R.G. [National Inst. of Standards and Technology, Boulder, CO (United States)] [National Inst. of Standards and Technology, Boulder, CO (United States)

1999-03-01T23:59:59.000Z

224

TOPIC TIME LOCATION CATEGORY TITLE AUTHORS INSTITUTION Advanced Energy Systems 10:15 to 10:35 AM BA1180 CSME  

E-Print Network [OSTI]

microorganisms P. Graham, D.Sinton University of Toronto Advanced Energy Systems 2:35 to 2:55 PM BA1180 CSME

225

Neutron scattering investigation of the magnetic order in single crystalline BaFe2As2  

SciTech Connect (OSTI)

The magnetic structure of BaFe{sub 2}As{sub 2} was determined from polycrystalline neutron diffraction measurements soon after the ThCr{sub 2}Si{sub 2}-type FeAs-based superconductors were discovered. Both the moment direction and the in-plane antiferromagnetic wavevector are along the longer a-axis of the orthorhombic unit cell. There is only one combined magnetostructural transition at {approx}140 K. However, a later single-crystal neutron diffraction work reported contradicting results. Here, we show neutron diffraction results from a single-crystal sample, grown by a self-flux method, that support the original polycrystalline work.

Bao, Wei [Los Alamos National Laboratory; Qiu, Y [NIST; Kofu, M [UNIV OF VA; Lee, S - H [UNIV OF VA; Chang, S [NIST; Wu, T [HEFEI NAT. LAB.; Wu, G [HEFEI NAT. LAB; Chen, X H [HEFEI NAT. LAB

2008-01-01T23:59:59.000Z

226

BaBar Results on E+ E- ---> P Anti-P By Means of ISR  

SciTech Connect (OSTI)

BaBar has measured with unprecedented accuracy the e{sup +}e{sup -} {yields} p{bar p} cross section from the threshold up to Q{sub p{bar p}}{sup 2} {approx} 20 GeV{sup 2}/c{sup 4}, finding out an unexpected cross section, with plateaux and negative steps. Evidence for a ratio |G{sub E}/G{sub M}| > 1 has also been found as well as a sudden variation in |G{sub M}| just above the threshold.

Ferroli, Rinaldo Baldini; /Enrico Fermi Ctr., Rome /Frascati

2006-02-21T23:59:59.000Z

227

Search for LFV in Tau- to L- L+ L- Decays at BaBar  

SciTech Connect (OSTI)

We report the results of search for the neutrinoless lepton-flavor violating decay of the tau lepton into three charged leptons, performed using 376 fb{sup -1} of data collected at an e{sup +}e{sup -} center-of-mass energy around 10.58 GeV with the BaBar detector at the PEP-II. In all six decay modes considered, the number of events found in data are compatible with the background expectations. Upper limits on the branching fractions are set in the range (4-8) x 10{sup -8} at 90% confidence level.

Giorgi, Marcello A.; /Pisa U. /INFN, Pisa

2011-11-30T23:59:59.000Z

228

Cation ordering transformations in Ba(Mg{sub 1/3}Ta{sub 2/3})O{sub 3}-BaZrO{sub 3} perovskite solid solutions  

SciTech Connect (OSTI)

The effect of the substitution of BaZrO{sub 3} on the cation ordering in Ba(Mg{sub 1/3}Ta{sub 2/3})O{sub 3} was studied using TEM and X-ray and neutron diffraction. Almost no solubility of Zr was found in the 1:2 ordered, trigonal structure of the Ba(Mg{sub 1/3}Ta{sub 2/3})O{sub 3} end-member (P{bar 3}m1), and a transformation to a 1:1 ordered, cubic (Fm{bar 3}m) phase with a = 2a{sub per} occurs for substitution levels between {approximately}10 and 25 mol% BaZrO{sub 3}. The structure of this Ba({beta}{prime}{sub 1/2}{beta}{double_prime}{sub 1/2})O{sub 3}-type phase consists of two distinct octahedral sites, {beta}{prime} and {beta}{double_prime}. The occupancies of the two cation positions, refined using the Rietveld method, were found to be consistent with a random site model in which {beta}{double_prime} is occupied by Ta, and {beta}{prime} by a random distribution of the remaining cations. The homogeneity range of the 1:1 solid solutions predicted by this model, Ba{l_brace}[Mg{sub (2{minus}y)/3} Ta{sub (1{minus}2y)/3} Zr{sub y}]{sub 1/2}[Ta]{sub 1/2}{r_brace}O{sub 3} (0.0 < y {le} 0.5), is in excellent agreement with that observed experimentally.

Chai, L.; Akbas, M.A.; Davies, P.K. [Univ. of Pennsylvania, Philadelphia, PA (United States). Dept. of Materials Science and Engineering] [Univ. of Pennsylvania, Philadelphia, PA (United States). Dept. of Materials Science and Engineering; Parise, J.B. [Univ. of New York, Stony Brook, NY (United States). Dept. of Earth and Space Sciences] [Univ. of New York, Stony Brook, NY (United States). Dept. of Earth and Space Sciences

1997-09-01T23:59:59.000Z

229

High temperature crystal structures and superionic properties of SrCl{sub 2}, SrBr{sub 2}, BaCl{sub 2} and BaBr{sub 2}  

SciTech Connect (OSTI)

The structural properties of the binary alkaline-earth halides SrCl{sub 2}, SrBr{sub 2}, BaCl{sub 2} and BaBr{sub 2} have been investigated from ambient temperature up to close to their melting points, using the neutron powder diffraction technique. Fluorite-structured SrCl{sub 2} undergoes a gradual transition to a superionic phase at 900-1100 K, characterised by an increasing concentration of anion Frenkel defects. At a temperature of 920(3) K, the tetragonal phase of SrBr{sub 2} undergoes a first-order transition to a cubic fluorite phase. This high temperature phase shows the presence of extensive disorder within the anion sublattice, which differs from that found in superionic SrCl{sub 2}. BaCl{sub 2} and BaBr{sub 2} both adopt the cotunnite crystal structure under ambient conditions. BaCl{sub 2} undergoes a first-order structural transition at 917(5) K to a disordered fluorite-structured phase. The relationship between the (disordered) crystal structures and the ionic conductivity behaviour is discussed and the influence of the size of the mobile anion on the superionic behaviour is explored. - Graphical abstract: Anomalous behaviour of the lattice expansion of SrCl{sub 2} at temperatures of {approx}1000 K is associated with the gradual transition to a superionic phase, whilst SrBr{sub 2} undergoes a first-order structural transition ({beta}{yields}{alpha}) to a fluorite-structured superionic phase at 920(3) K. Highlights: > Anomalous behaviour of the lattice expansion of SrCl{sub 2} occurs at temperatures {approx}1000 K. > Crystal structure of {beta}-SrBr{sub 2} is described in detail. > On heating, SrBr{sub 2} and BaCl{sub 2} transform to a fluorite-structured superionic phase. > Temperature dependence of the BaCl{sub 2} and BaBr{sub 2} structures is presented. > Nature of the superionic phases within the alkaline-earth halides is discussed.

Hull, Stephen, E-mail: stephen.hull@stfc.ac.uk [The ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX (United Kingdom); Norberg, Stefan T. [The ISIS Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX (United Kingdom); Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg (Sweden); Ahmed, Istaq; Eriksson, Sten G. [Department of Chemical and Biological Engineering, Chalmers University of Technology, SE-412 96 Gothenburg (Sweden); Mohn, Chris E. [Department of Chemistry and Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1033 Blindern, N-0315 Oslo (Norway)

2011-11-15T23:59:59.000Z

230

Assessment Plans College of Arts and Architecture  

E-Print Network [OSTI]

LO Data Sched Architecture UG BA Architecture (Environmental Design) Y 2013 Y Y Y Architecture GR MAssessment Plans 9/18/2014 College of Arts and Architecture Dept Level Degree Program Plan Update Architecture Y 2014 Y Y Y Art UG BA Art Y 2007 Y Y N Art GR MFA Art Y 2013 Y Y Y Film and Photography UG BA

Dyer, Bill

231

Avoided Quantum Criticality and Magnetoelastic Coupling in BaFe2-xNixAs2  

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

We study the structural and magnetic orders in electron-doped BaFe2?xNixAs2 by high-resolution synchrotron x-ray and neutron scatterings. Upon Ni doping x, the nearly simultaneous tetragonal-to-orthorhombic structural (Ts) and antiferromagnetic (TN) phase transitions in BaFe2As2 are gradually suppressed and separated, resulting in Ts>TN with increasing x, as was previously observed. However, the temperature separation between Ts and TN decreases with increasing x for x?0.065, tending toward a quantum bicritical point near optimal superconductivity at x?0.1. The zero-temperature transition is preempted by the formation of a secondary incommensurate magnetic phase in the region 0.088?x?0.104, resulting in a finite value of TN?Tc+10??K above the superconducting dome around x?0.1. Our results imply an avoided quantum critical point, which is expected to strongly influence the properties of both the normal and superconducting states.

Lu, Xingye; Gretarsson, H.; Zhang, Rui; Liu, Xuerong; Luo, Huiqian; Tian, Wei; Laver, Mark; Yamani, Z.; Kim, Young-June; Nevidomskyy, A. H.; Si, Qimiao; Dai, Pengcheng

2013-06-01T23:59:59.000Z

232

Controlling internal barrier in low loss BaTiO3 supercapacitors U-C. Chung, C. Elissalde, S. Mornet and M. Maglione  

E-Print Network [OSTI]

1 Controlling internal barrier in low loss BaTiO3 supercapacitors U-C. Chung, C. Elissalde, S Supercapacitor behavior has been reported in a number of oxides including reduced BaTiO3 ferroelectric ceramics to process bulk composites having supercapacitor features with low dielectric losses and temperature

Boyer, Edmond

233

Evidence for a phosphorylation-independent role for Ser 32 and 36 in proteasome inhibitor-resistant (PIR) InBa degradation in B cells  

E-Print Network [OSTI]

-resistant (PIR) InBa degradation in B cells Shelby O'Connor, Stephanie Markovina, Shigeki MiyamotoT Program is maintained through proteasome inhibitor-resistant (PIR) InBa degradation in a manner that requires Ser 32 whether dual phosphorylation of Ser 32 and 36 was required for PIR degradation. Through mutagenesis

Miyamoto, Shigeki

234

Studies on catalytic and structural properties of BaRuO3 type perovskite1 material for diesel soot oxidation2  

E-Print Network [OSTI]

1 Studies on catalytic and structural properties of BaRuO3 type perovskite1 material for diesel by co-precipitation24 method and its catalytic activity has been tested for diesel soot oxidation processes and vehicle exhaust.33 Key words: BaRuO3, perovskite, diesel soot oxidation, vehicular exhaust

Paris-Sud XI, Universit de

235

Guided wave absorption and uorescence in epitaxial Er:BaTiO3 on MgO D.M. Gilla,*, G.M. Fordb  

E-Print Network [OSTI]

. Keywords: Er:BaTiO3; Fluorescence; Luminescence 1. Introduction The development of low-cost composite waveguides fabricated in erbium-doped thin-®lm epitaxial BaTiO3. Luminescence transient measurements indicate strategies toward the realization of this type of opto-electronic circuit. Proposed designs of hybrid opto

Ho, Seng-Tiong

236

Page 1 | B.A. in Special Education (General Curriculum) and Elementary Education (K-6) Dual Major | Academic Plan of Study  

E-Print Network [OSTI]

| Academic Plan of Study Updated May 2014 B.A. in Special Education (General Curriculum) and ElementaryPage 1 | B.A. in Special Education (General Curriculum) and Elementary Education (K-6) Dual Major Education (K-6) Dual Program Academic Plan of Study College of Education Department of Special Education

Raja, Anita

237

Mechanism of Cation Exchange Process for Epitaxy of Superconducting HgBa2CaCu2O6 Films and Passive Microwave Devices  

E-Print Network [OSTI]

cations into, the lattice of epitaxial Tl2Ba2CaCu2O8 (Tl-2212) or TlBa2CaCu2O7 (Tl-1212) precursor films. Aiming at the remained issues in understanding the mechanism of the cation exchange (CE) process, this thesis work has studied the reversibility of CE...

Zhao, Hua

2007-12-17T23:59:59.000Z

238

11196. Proposed by Mohammad Hossein Mehrabi, Iran University of Science and Technology, Tehran, Iran. Let A and B be real n n matrices. Show that if AB -BA is invertible and A2  

E-Print Network [OSTI]

11196. Proposed by Mohammad Hossein Mehrabi, Iran University of Science and Technology, Tehran, Iran. Let A and B be real n ? n matrices. Show that if AB - BA is invertible and A2 + B2 = 3(AB - BA

Heckman, Christopher Carl

239

Hysteresis analysis of CoTi substituted M-type BaSr hexagonal ferrite Charanjeet Singh a,  

E-Print Network [OSTI]

Hysteresis analysis of Co­Ti substituted M-type Ba­Sr hexagonal ferrite Charanjeet Singh a, , S.5Sr0.5CoxTixFe(12 - 2x)O19 ferrite have been investigated by XRD, SEM and VSM. XRD and SEM confirm M ferrites are known for their strong uniaxial magne- tocrystalline anisotropy with ease of magnetization

Koledintseva, Marina Y.

240

Computer Science Educational Effectiveness Assessment Plan Page 1 of 23 B.S., B.A, Minor in Computer Science  

E-Print Network [OSTI]

Computer Science Educational Effectiveness Assessment Plan Page 1 of 23 B.S., B.A, Minor in Computer Science Educational Effectiveness Assessment Plan Version 1.3 Adopted by The Computer Science of Academic Affairs: #12;Computer Science Educational Effectiveness Assessment Plan Page 2 of 23 TABLE

Mock, Kenrick

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241

Office of the Faculty of Engineering Syllabus for the Degree Project for the B.A. in Industrial Design  

E-Print Network [OSTI]

Office of the Faculty of Engineering Syllabus for the Degree Project for the B.A. in Industrial Design Approved by the Board of the Faculty of Engineering on 2nd March 2009 and valid from 1 st January of compulsory courses that can be accredited to the degree of Bachelor of Arts in Industrial Design. Exemption

242

Hall-Coefficient for Oriented Tl2ba2cacu2o8+delta Thin-Films  

E-Print Network [OSTI]

Measurements of the Hall coefficient and resistivity for highly oriented Tl2Ba2CaCu2O8+delta thin films are reported. The temperature dependence of cotTHETA(H), where THETA(H) is the normal-state Hall angle, for a single-phase (2:2:1:2) film sample...

WANG, PS; WILLIAMS, JC; RATHNAYAKA, KDD; HENNINGS, BD; Naugle, Donald G.; KAISER, AB.

1993-01-01T23:59:59.000Z

243

Philosophy, Politics & Law BA-MA A master degree adds problem-solving abilities in new and unfamiliar environments within  

E-Print Network [OSTI]

Philosophy, Politics & Law BA-MA A master degree adds problem-solving abilities in new and students of philosophy are well prepared, but also an area which is often intellectually interesting. "...The law is not only a career that interests many philosophers and philosophy students; it is also

Suzuki, Masatsugu

244

Roadmap: Pan-African Studies Pan-African Studies Bachelor of Arts [AS-BA-PAS-PAS  

E-Print Network [OSTI]

Roadmap: Pan-African Studies ­ Pan-African Studies ­ Bachelor of Arts [AS-BA-PAS-PAS] College: 22-Apr-13/LNHD This roadmap is a recommended semester-by-semester plan of study for this major Non-PAS Elective 3 General Elective (upper division) 9 #12;Roadmap: Pan-African Studies ­ Pan

Sheridan, Scott

245

Electron irradiation of Co, Ni, and P-doped BaFe2As2type iron-based superconductors  

E-Print Network [OSTI]

superconductivity in the multiband iron-based superconductors [1, 2], with a sign-changing order parameter betweenElectron irradiation of Co, Ni, and P-doped BaFe2As2type iron-based superconductors Cornelis-scale point-like disorder on superconductivity in these materials [5, 6]. In particular, interband scattering

Paris-Sud XI, Universit de

246

HYDROTHERMAL PROCESSING OF BaTiO 3/POLYMER FILMS Elliott B. Slamovich and Ilhan A. Aksay  

E-Print Network [OSTI]

HYDROTHERMAL PROCESSING OF BaTiO 3/POLYMER FILMS Elliott B. Slamovich and Ilhan A. Aksay Department temperature used in hydrothermal processing. BACKGROUND Over the last decade efforts have increased to develop hydrothermal processing not only to fabricate ceramics, but also to form thin film composites containing

Aksay, Ilhan A.

247

Draft Version 9 BA 290N-3, ME 290H, INFOSYS 290P-5 and CCA UDIST-300-14  

E-Print Network [OSTI]

Objectives: The focus of the course is on innovation processes for sustainable products, from product sustainability means, how companies are approaching it, and a process for generating sustainable solutions1 Draft Version 9 BA 290N-3, ME 290H, INFOSYS 290P-5 and CCA UDIST-300-14 Design for Sustainability

Agogino, Alice M.

248

La-doped BaTiO{sub 3} heterostructures: Compensating the polarization discontinuity  

SciTech Connect (OSTI)

We demonstrate a route to manipulate the polarization and internal electric field of a complex oxide heterostructure using a layering sequence based on the LaAlO{sub 3}-SrTiO{sub 3} interface. By combining sensitive atomic-level mapping of the structure using direct x-ray phase-retrieval methods with theoretical modeling of the electrostatic charge and polarization, we have devised a novel single-domain polar heterostructure. We find that ionic rearrangement results in strain and free energy minimization, and eliminates the polarization discontinuity leading to a two-fold increase of the spontaneous polarization towards the surface of an ultra-thin single-domain BaTiO{sub 3} film.

Kumah, D. P.; Clarke, R., E-mail: royc@umich.edu [Applied Physics Program, University of Michigan, Ann Arbor, Michigan 48109 (United States); Yacoby, Y. [Racah Institute of Physics, Hebrew University, Jerusalem 91904 (Israel); Pauli, S. A.; Willmott, P. R. [Swiss Light Source, Paul Scherrer Institut, CH-5232 Villigen PSI (Switzerland)

2013-12-01T23:59:59.000Z

249

Microscopic description of spherical to {gamma}-soft shape transitions in Ba and Xe nuclei  

SciTech Connect (OSTI)

The rapid transition between spherical and {gamma}-soft shapes in Ba and Xe nuclei in the mass region A>=130 is analyzed using excitation spectra and collective wave functions obtained by diagonalization of a five-dimensional Hamiltonian for quadrupole vibrational and rotational degrees of freedom, with parameters determined by constrained self-consistent relativistic mean-field calculations for triaxial shapes. The results reproduce the characteristic evolution of excitation spectra and E2 transition probabilities, and in general, a good agreement with available data is obtained. The calculated spectra display fingerprints of a second-order shape phase transition that can approximately be described by analytic solutions corresponding to the E(5) dynamical symmetry.

Li, Z. P. [State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871 (China); Physics Department, Faculty of Science, University of Zagreb, 10000 Zagreb (Croatia); Niksic, T.; Vretenar, D. [Physics Department, Faculty of Science, University of Zagreb, 10000 Zagreb (Croatia); Meng, J. [State Key Laboratory of Nuclear Physics and Technology, School of Physics, Peking University, Beijing 100871 (China); School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191 (China)

2010-03-15T23:59:59.000Z

250

Investigation of novel decay B _____ ____(2S)____K at BaBar  

SciTech Connect (OSTI)

We investigate the undocumented B meson decay, B{sup +} {yields} {Psi}(2S){omega}K{sup +}. The data were collected with the BaBar detector at the SLAC PEP-II asymmetric-energy e{sup +}e{sup -} collier operating at the {gamma}(4S) resonance, a center-of-mass energy of 10.58 GeV/c{sup 2}. The {gamma}(4S) resonance primarily decays to pairs of B-mesons. The BaBar collaboration at the PEP-II ring was located at the SLAC National Accelerator Laboratory and was designed to study the collisions of positrons and electrons. The e{sup -}e{sup +} pairs collide at asymmetric energies, resulting in a center of mass which is traveling at relativistic speeds. The resulting time dilation allows the decaying particles to travel large distances through the detector before undergoing their rapid decays, a process that occurs in the in the center of mass frame over extremely small distances. As they travel through silicon vertex trackers, a drift chamber, a Cerenkov radiation detector and finally an electromagnetic calorimeter, we measure the charge, energy, momentum, and particle identification in order to reconstruct the decays that have occurred. While all well understood mesons currently fall into the qq model, the quark model has no a priori exclusion of higher configuration states such as qqqq which has led experimentalists and theorists alike to seek evidence supporting the existence of such states. Currently, there are hundreds of known decay modes of the B mesons cataloged by the Particle Data Group, but collectively they only account for approximately 60% of the B branching fraction and it is possible that many more exist.

Schalch, Jacob; /Oberlin Coll. /SLAC

2011-06-22T23:59:59.000Z

251

Precipitation method for barium metaborate (BaB{sub 2}O{sub 4}) synthesis from borax solution  

SciTech Connect (OSTI)

In this study, barium metaborate (BaB{sub 2}O{sub 4}, BMB) synthesis from the borax solution was carried out. BMB currently is used in production of ceramic glazes, luminophors, oxide cathodes as well as additives to pigments for aqueous emulsion paints and also ??BaB{sub 2}O{sub 4} single crystals are the best candidate for fabrication of solid-state UV lasers operating at a wavelength of 200 nm due to excellent nonlinear optical properties. In the present study, synthesis was carried out from the borax solution (Na{sub 2}B{sub 4}O{sub 7?}10H{sub 2}O, BDH) and barium chloride (BaCI{sub 2?}2H{sub 2}O, Ba) in the glass-batch reactor with stirring. The effect of, times (5-15 min), molar ratio [stoich.ration (1.0:2.0), 1.25:2.0, 1.5:2.0, 2.5:2:0, 3.0:2.0, 3.5:2.0,4.0:2.0, 5.0:2.0] and also crystallization time (2-6 hour) on the BMB yield (%) was investigated at 80 C reaction temperature. It is found that, BMB precipitation synthesis with 90 % yield can be performed from 0.50 molar ration (BDH:Ba), under 80 C, 15 minute, and 6 hours crystallization time. The structural properties of BMB powders were characterized by using XRD, FT-IR and DTA-TG instrumental analysis technique.

Ak?ener, Eymen; Figen, Aysel Kantrk; Pi?kin, Sabriye [Yildiz Technical University, Chem. Eng. Dept., Davutpasa Campus, 34210, Istanbul (Turkey)

2013-12-16T23:59:59.000Z

252

JOURNAL DE PHYSIQUE Colfoque Cl, supplkrnent au no 4, Tome 38, Auril 1977, page Cl-333 METAL-OXIDES COMPOSITES FOR BaFe,,Ol PERMANENT MAGNETS  

E-Print Network [OSTI]

the possibility of producing composites of Ba ferrite with various metals such as cobalt, nickel, iron, copper of a CO deposit with preferential orientation obtained by chemical reduction and electrodeposition. 2. CO

Paris-Sud XI, Universit de

253

Is the Communicative Language Teaching Approach More Effective Than the Grammar Translation Method at Teaching the Ba-Construction in Mandarin Chinese to American Undergraduate Students?  

E-Print Network [OSTI]

(CLT) with that of Grammar Translation Method (GT) at teaching Chinese as a foreign language (CFL). The present study fills this gap. The purpose of this study is to investigate quantitatively which method is more effective at teaching the ba...

Wang, Jun

2013-12-31T23:59:59.000Z

254

Structural and magnetic properties and superconductivity in Ba(Fe{sub 1-x}TM{sub x}){sub 2}As{sub 2}  

SciTech Connect (OSTI)

We studied the effects on structural and magnetic phase transitions and the emergence of superconductivity in transition metal substituted BaFe{sub 2}As{sub 2}. We grew four series of Ba(Fe{sub 1-x}TM{sub x}){sub 2}As{sub 2} (TM=Ru, Mn, Co+Cr and Co+Mn) and characterized them by crystallographic, magnetic and transport measurements. We also subjected Ba(Fe{sub 1-x}Cr{sub x}){sub 2}As{sub 2} and Ba(Fe{sub 1-x}Co{sub x}){sub 2}As{sub 2} to heat treatment to explore what changes might be induced.

Thaler, Alexander

2012-07-23T23:59:59.000Z

255

Time-Dependent CP Asymmetries in b --> s qbar q Transitions and sin2phi1 in B0 --> J/psi K0 Decays with 386 Million BBbar Pairs  

E-Print Network [OSTI]

We present measurements of time-dependent CP asymmetries in B0 --> phi(1020) K0, eta' K0, Ks Ks Ks, Ks pi0, f0(980) Ks, omega Ks and K+ K- Ks decays based on a sample of 386 x 10^6 BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. These decays are dominated by the b --> s gluonic penguin transition and are sensitive to new CP-violating phases from physics beyond the standard model. One neutral B meson is fully reconstructed in one of the specified decay channels, and the flavor of the accompanying B meson is identified from its decay products. CP-violation parameters sin2phi1^eff and {\\cal A} for each of the decay modes are obtained from the asymmetries in the distributions of the proper-time intervals between the two B decays. We also perform an improved measurement of CP asymmetries in B0 --> J/psi K0 decays using the same data sample. The same analysis procedure mentioned above yields sin2phi1 = +0.652 +/- 0.039(stat) +/- 0.020(syst), which serves as a reference point for the standard model, and {\\cal A} = +0.010 +/- 0.026(stat) +/- 0.036(syst).

The Belle Collaboration; K. Abe

2005-07-08T23:59:59.000Z

256

Single-crystal neutron diffraction studies on Ni-based metal-pnictide superconductor BaNi2As2  

SciTech Connect (OSTI)

We report the results of single-crystal neutron diffraction studies of the superconductor BaNi{sub 2}As{sub 2}. The experiments were performed on a tiny crystal of mass 0.8 mg at several temperatures between 20 and 200 K using the Single Crystal Diffractometer, SCD, at the Los Alamos Neutron Science Center. Above 130 K, BaNi{sub 2}As{sub 2} crystallizes in the tetragonal ThCr{sub 2}Si{sub 2} structure. Our neutron diffraction data corroborate a first-order structural transition around 130 K with a relatively large hysteresis of about 10K, in agreement with observations from bulk studies. The anisotropic thermal displacement coefficients are enhanced along c-axis approaching the transition, and a splitting is observed for in-plane type reflections below the transition, which is evidence for a change in crystal structure.

Kothapalli, Karunakar [Los Alamos National Laboratory; Ronning, F [Los Alamos National Laboratory; Bauer, E D [Los Alamos National Laboratory; Schultz, A J [Los Alamos National Laboratory; Nakotte, Heinz [Los Alamos National Laboratory

2009-01-01T23:59:59.000Z

257

Two-dimensional resonant magnetic excitation in BaFe1.84Co0.16As2  

SciTech Connect (OSTI)

Inelastic neutron scattering measurements on single crystals of superconducting BaFe1.84Co0.16As2 clearly reveal a magnetic excitation located at wavevectors (1/2 1/2 L) in tetragonal notation. The scattering is much broader in L than are spin waves observed in the parent compound BaFe2As2 indicating that the excitations in the superconducting material are more two-dimensional in nature. The excitation appears gapless for T > TC and becomes gapped on cooling below TC. The observed gap energy is approximately 9.6 meV corresponding to 5 kBTC which is remarkably similar to the canonical value for the resonance energy in the cuprates.

Lumsden, Mark D [ORNL; Christianson, Andrew D [ORNL; Parshall, Daniel [ORNL; Stone, Matthew B [ORNL; Nagler, Stephen E [ORNL; Mook Jr, Herbert A [ORNL; Lokshin, Konstantin A [ORNL; Egami, Takeshi [ORNL; Abernathy, Douglas L [ORNL; Goremychkin, E. A. [ISIS Facility, Rutherford Appleton Laboratory; Osborn, R. [Argonne National Laboratory (ANL); McGuire, Michael A [ORNL; Safa-Sefat, Athena [ORNL; Jin, Rongying [ORNL; Sales, Brian C [ORNL; Mandrus, David [ORNL

2009-01-01T23:59:59.000Z

258

Coherency strain enhanced dielectric-temperature property of rare-earth doped BaTiO{sub 3}  

SciTech Connect (OSTI)

Core/shell-grained BaTiO{sub 3} samples were prepared with addition of rare earth elements. The core/shell interface was semi-coherent, and many misfit dislocations formed in Dy-doped samples. In contrast, a coherent interface and few dislocations were observed in Ho- and Er-doped samples. Dy-doped samples exhibited poor temperature stability, showing a peak with no frequency dispersion. Ho- and Er-doped samples exhibited a broad curve with frequency dispersion. This improved temperature stability is attributed to the coherency strain, which leads to the formation of polar nano-regions in the shell. Coherency at the core/shell interface is critical to improve the temperature stability of core/shell-structured BaTiO{sub 3}.

Jeon, Sang-Chae; Kang, Suk-Joong L. [Materials Interface Laboratory, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701 (Korea, Republic of)] [Materials Interface Laboratory, Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology, 373-1, Guseong-dong, Yuseong-gu, Daejeon 305-701 (Korea, Republic of)

2013-03-18T23:59:59.000Z

259

Phase, Dielectric and Ferroelectric Properties of Microwave Sintered La and Ca Modified BaTiO{sub 3} Ceramics  

SciTech Connect (OSTI)

Lanthanum and calcium modified barium titanate, Ba{sub (1-x)}La{sub x}Ti{sub (1-x/4)}O{sub 3}/BLT and Ba({sub 1-x})Ca{sub x}TiO{sub 3}/BCT, where x = 0.02, ferroelectric ceramic samples were synthesized in single perovskite phase by microwave processing technique. Sintering temperature was optimized at 1100 deg. C for 1h. Presence of pore free micron size uniform grains suggested the advantage of using microwave sintering process. Transition temperature (T{sub c}) decreases with the substitution of La content in BT system. Temperature coefficient of capacitance is negligible from RT temperature to 75 deg. C for BLT ceramic samples. Polarization vs. electric field (P-E) hysteresis loop study confirms the ferroelectric nature of the modified BT ceramic samples.

Sonia, S.; Patel, R. K. [Department of Chemistry, National Institute of Technology, Rourkela - 769008 (India); Kumar, P. [Department of Physics, National Institute of Technology, Rourkela - 769008 (India); Prakash, Chandra [Directorate of IE and IPR, DRDO, DRDO Bhawan, New Delhi-110105 (India); Agrawal, D. K. [Materials Research Laboratory, Pennsylvania State University, University Park, PA 16802 (United States)

2011-11-22T23:59:59.000Z

260

Heat capacity of the site-diluted spin dimer system Ba?(Mn1-xVx)?O?  

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

Heat-capacity and susceptibility measurements have been performed on the diluted spin dimer compound Ba?(Mn1-xVx)?O?. The parent compound Ba?Mn?O? is a spin dimer system based on pairs of antiferromagnetically coupled S=1, 3d Mn?? ions such that the zero-field ground state is a product of singlets. Substitution of nonmagnetic S=0, 3d? V?? ions leads to an interacting network of unpaired Mn moments, the low-temperature properties of which are explored in the limit of small concentrations 0?x?0.05. The zero-field heat capacity of this diluted system reveals a progressive removal of magnetic entropy over an extended range of temperatures, with no evidence for a phase transition. The concentration dependence does not conform to expectations for a spin-glass state. Rather, the data suggest a low-temperature random singlet phase, reflecting the hierarchy of exchange energies found in this system.

Samulon, E. C.; Shapiro, M. C.; Fisher, I. R.

2011-08-01T23:59:59.000Z

Note: This page contains sample records for the topic "ba sin gr" 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

APS/123-QED Evidence for nodeless energy gaps in hole-doped Ba0.68K0.32Fe2As2  

E-Print Network [OSTI]

Institute - Heisenbergstrasse 1, D-70569 Stuttgart, Germany 3 Institute of Science and Technology for Opto-doped Ba0.68K0.32Fe2As2 superconductor: NMR study in a clean single crystal Z. Li,1 D. L. Sun,2 C. T. Lin,2) Abstract We report 75As NMR studies on a very clean hole-doped single crystal Ba0.68K0.32Fe2As2 (Tc = 38

Hu, Jiangping

262

High field nuclear magnetic resonance in transition metal substituted BaFe{sub 2}As{sub 2}  

SciTech Connect (OSTI)

We report high field {sup 75}As nuclear magnetic resonance (NMR) measurements on Co and Cu substituted BaFe{sub 2}As{sub 2} single crystals displaying same structural/magnetic transition T{sub 0}?128??K. From our anisotropy studies in the paramagnetic state, we strikingly found virtually identical quadrupolar splitting and consequently the quadrupole frequency ?{sub Q}?2.57(1)??MHz for both compounds, despite the claim that each Cu delivers 2 extra 3d electrons in BaFe{sub 2}As{sub 2} compared to Co substitution. These results allow us to conclude that a subtle change in the crystallographic structure, particularly in the FeAs tetrahedra, must be the most probable tuning parameter to determine T{sub 0} in this class of superconductors rather than electronic doping. Furthermore, our NMR data around T{sub 0} suggest coexistence of tetragonal/paramagnetic and orthorhombic/antiferromagnetic phases between the structural and the spin density wave magnetic phase transitions, similarly to what was reported for K-doped BaFe{sub 2}As{sub 2} [Urbano et al., Phys. Rev. Lett. 105, 107001 (2010)].

Garitezi, T. M., E-mail: thalesmg@ifi.unicamp.br; Lesseux, G. G.; Rosa, P. F. S.; Adriano, C.; Pagliuso, P. G.; Urbano, R. R. [Instituto de Fsica Gleb Wataghin, UNICAMP, Campinas, SP 13083-859 (Brazil); Reyes, A. P.; Kuhns, P. L. [National High Magnetic Field Laboratory, FSU, Tallahassee, Florida 32306-4005 (United States)

2014-05-07T23:59:59.000Z

263

Structural and magnetic properties of the Kagome antiferromagnet YbBaCo{sub 4}O{sub 7}  

SciTech Connect (OSTI)

The mixed-valent compound YbBaCo{sub 4}O{sub 7} is built up of Kagome sheets of CoO{sub 4} tetrahedra, linked in the third dimension by a triangular layer of CoO{sub 4} tetrahedra in an analogous fashion to that found in the known geometrically frustrated magnets such as pyrochlores and SrCr{sub 9} {sub x} Ga{sub 12-9} {sub x} O{sub 19} (SCGO). We have undertaken a study of the structural and magnetic properties of this compound using combined high-resolution powder neutron and synchrotron X-ray diffraction. YbBaCo{sub 4}O{sub 7} undergoes a first-order trigonal{sup {yields}}orthorhombic phase transition at 175 K. We show that this transition occurs as a response to a markedly underbonded Ba{sup 2+} site in the high-temperature phase and does not appear to involve charge ordering of Co{sup 2+}/Co{sup 3+} ions in the tetrahedra. The symmetry lowering relieves the geometric frustration of the structure, and a long-range-ordered 3-D antiferromagnetic state develops below 80 K.

Huq, A. [Intense Pulsed Neutron Source, Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL 60439 (United States); Mitchell, J.F. [Materials Science Division, Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL 60439 (United States)]. E-mail: mitchell@anl.gov; Zheng, H. [Materials Science Division, Argonne National Laboratory, 9700 S. Cass Ave., Argonne, IL 60439 (United States); Chapon, L.C. [ISIS Facility, Rutherford Appleton Laboratory-CCLRC, Chilton, Didcot, Oxfordshire, OX11 0QX (United Kingdom); Radaelli, P.G. [ISIS Facility, Rutherford Appleton Laboratory-CCLRC, Chilton, Didcot, Oxfordshire, OX11 0QX (United Kingdom); Knight, K.S. [ISIS Facility, Rutherford Appleton Laboratory-CCLRC, Chilton, Didcot, Oxfordshire, OX11 0QX (United Kingdom); Stephens, P.W. [Department of Physics and Astronomy, SUNY Stonybrook, NY 11794 (United States)

2006-04-15T23:59:59.000Z

264

First order phase transition and superconductivity in BaNi2As2 single crystals  

SciTech Connect (OSTI)

We report the synthesis and physical properties of single crystals of stoichiometric BaNi{sub 2}As{sub 2} which crystallizes in the ThCr{sub 2}Si{sub 2} structure type with lattice parameters a = 4.112(4) {angstrom} and c = 11.54(2) {angstrom}. Resistivity and heat capacity show a first order phase transition at T{sub 0} = 130 K with a thermal hysteresis of 7 K. The Hall coefficient is weakly temperature dependent from room temperature to 2 K where it has a value of -4 x 10{sup -10} {Omega}-cm/Oe. Resist.ivity, ac-susceptibility, and heat capacity find evidence for bulk superconductivity at T{sub c} = 0.7 K. The Sommerfeld coefficient at T{sub c} is 11.6 {+-} 0.9 mJ/ molK{sup 2}. The upper critical field is anisotropic with initial slopes of dH{sub c2}{sup c}/dT = -0.19 T/K and dH{sub c2}{sup ab}/dT = -0.40 T/K, as determined by resistivity.

Ronning, F [Los Alamos National Laboratory; Kurita, N [Los Alamos National Laboratory; Bauer, E D [Los Alamos National Laboratory; Scott, B L [Los Alamos National Laboratory; Park, T [Los Alamos National Laboratory; Klimczuk, T [Los Alamos National Laboratory; Movshovich, R [Los Alamos National Laboratory; Thompson, J D [Los Alamos National Laboratory

2008-01-01T23:59:59.000Z

265

Cross-section measurement of the $^{130}$Ba(p,$?$)$^{131}$La reaction for $?$-process nucleosynthesis  

E-Print Network [OSTI]

A measurement of total cross-section values of the $^{130}$Ba(p,$\\gamma$)$^{131}$La reaction at low proton energies allows a stringent test of statistical model predictions with different proton+nucleus optical model potentials. Since no experimental data are available for proton-capture reactions in this mass region around A~$\\approx$~130, this measurement can be an important input to test the global applicability of proton+nucleus optical model potentials. The total reaction cross-section values were measured by means of the activation method. After the irradiation with protons, the reaction yield was determined by use of $\\gamma$-ray spectroscopy using two clover-type high-purity germanium detectors. In total, cross-section values for eight different proton energies could be determined in the energy range between 3.6 MeV $\\leq E_p \\leq$ 5.0 MeV, thus, inside the astrophysically relevant energy region. The measured cross-section values were compared to Hauser-Feshbach calculations using the statistical model codes TALYS and SMARAGD with different proton+nucleus optical model potentials. With the semi-microscopic JLM proton+nucleus optical model potential used in the SMARAGD code, the absolute cross-section values are reproduced well, but the energy dependence is too steep at the lowest energies. The best description is given by a TALYS calculation using the semi-microscopic Bauge proton+nucleus optical model potential using a constant renormalization factor.

L. Netterdon; A. Endres; G. G. Kiss; J. Mayer; T. Rauscher; P. Scholz; K. Sonnabend; Zs. Trk; A. Zilges

2014-09-27T23:59:59.000Z

266

Structural feature controlling superconductivity in compressed BaFe{sub 2}As{sub 2}  

SciTech Connect (OSTI)

Superconductivity can be induced with the application of pressure but it disappears eventually upon heavy compression in the iron-based parent compound BaFe{sub 2}As{sub 2}. Structural evolution with pressure is used to understand this behavior. By performing synchrotron X-ray powder diffraction measurements with diamond anvil cells up to 26.1?GPa, we find an anomalous behavior of the lattice parameter with a S shape along the a axis but a monotonic decrease in the c-axis lattice parameter with increasing pressure. The close relationship between the axial ratio c/a and the superconducting transition temperature T{sub c} is established for this parent compound. The c/a ratio is suggested to be a measure of the spin fluctuation strength. The reduction of T{sub c} with the further increase of pressure is a result of the pressure-driven weakness of the spin-fluctuation strength in this material.

Yang, Wenge, E-mail: wyang@ciw.edu [Center for High Pressure Science and Technology Advanced Research, Shanghai 201203 (China); High Pressure Synergetic Consortium, Geophysical Laboratory, Carnegie Institution of Washington, Argonne, Illinois 60439 (United States); Jia, Feng-Jiang [Key Laboratory of Materials Physics and Center for Energy Matter in Extreme Environments, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031 (China); Tang, Ling-Yun [Center for High Pressure Science and Technology Advanced Research, Shanghai 201203 (China); Department of Physics, South China University of Technology, Guangzhou 510640 (China); Tao, Qian; Xu, Zhu-An [Department of Physics, Zhejiang University, Hangzhou 310027 (China); Chen, Xiao-Jia, E-mail: xjchen@ciw.edu [Center for High Pressure Science and Technology Advanced Research, Shanghai 201203 (China); Key Laboratory of Materials Physics and Center for Energy Matter in Extreme Environments, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031 (China); Geophysical Laboratory, Carnegie Institution of Washington, Washington, DC 20015 (United States)

2014-02-28T23:59:59.000Z

267

Investigation of rare nuclear decays with BaF$_2$ crystal scintillator contaminated by radium  

E-Print Network [OSTI]

The radioactive contamination of a BaF$_2$ scintillation crystal with mass of 1.714 kg was measured over 101 hours in the low-background DAMA/R&D set-up deep underground (3600 m w.e.) at the Gran Sasso National Laboratories of INFN (LNGS, Italy). The half-life of $^{212}$Po (present in the crystal scintillator due to contamination by radium) was measured as $T_{1/2}(^{212}$Po) = 298.8$\\pm$0.8(stat.)$\\pm$1.4(syst.) ns by analysis of the events' pulse profiles. The $^{222}$Rn nuclide is known as 100% decaying via emission of $\\alpha$ particle with $T_{1/2}$ = 3.82 d; however, its $\\beta$ decay is also energetically allowed with $Q_\\beta = 24\\pm21$ keV. Search for decay chains of events with specific pulse shapes characteristic for $\\alpha$ or for $\\beta/\\gamma$ signals and with known energies and time differences allowed us to set, for the first time, the limit on the branching ratio of $^{222}$Rn relatively to $\\beta$ decay as $B_\\beta 8.0$ y). Half-life limits of $^{212}$Pb, $^{222}$Rn and $^{226}$Ra relatively to $2\\beta$ decays are also improved in comparison with the earlier results.

P. Belli; R. Bernabei; F. Cappella; V. Caracciolo; R. Cerulli; F. A. Danevich; A. Di Marco; A. Incicchitti; D. V. Poda; O. G. Polischuk; V. I. Tretyak

2014-07-22T23:59:59.000Z

268

High temperature superconductor step-edge Josephson junctions using Ti-Ca-Ba-Cu-O  

SciTech Connect (OSTI)

A process is disclosed for formulating non-hysteretic and hysteretic Josephson junctions using HTS materials which results in junctions having the ability to operate at high temperatures while maintaining high uniformity and quality. The non-hysteretic Josephson junction is formed by step-etching a LaAlO[sub 3] crystal substrate and then depositing a thin film of TlCaBaCuO on the substrate, covering the step, and forming a grain boundary at the step and a subsequent Josephson junction. Once the non-hysteretic junction is formed the next step to form the hysteretic Josephson junction is to add capacitance to the system. In the current embodiment, this is accomplished by adding a thin dielectric layer, LaA1O[sub 3], followed by a cap layer of a normal metal where the cap layer is formed by first depositing a thin layer of titanium (Ti) followed by a layer of gold (Au). The dielectric layer and the normal metal cap are patterned to the desired geometry. 8 figs.

Ginley, D.S.; Hietala, V.M.; Hohenwarter, G.K.G.; Martens, J.S.; Plut, T.A.; Tigges, C.P.; Vawter, G.A.; Zipperian, T.E.

1994-10-25T23:59:59.000Z

269

High temperature superconductor step-edge Josephson junctions using Ti-Ca-Ba-Cu-O  

SciTech Connect (OSTI)

A process for formulating non-hysteretic and hysteretic Josephson junctions using HTS materials which results in junctions having the ability to operate at high temperatures while maintaining high uniformity and quality. The non-hysteretic Josephson junction is formed by step-etching a LaAlO.sub.3 crystal substrate and then depositing a thin film of TlCaBaCuO on the substrate, covering the step, and forming a grain boundary at the step and a subsequent Josephson junction. Once the non-hysteretic junction is formed the next step to form the hysteretic Josephson junction is to add capacitance to the system. In the current embodiment, this is accomplished by adding a thin dielectric layer, LaA1O.sub.3, followed by a cap layer of a normal metal where the cap layer is formed by first depositing a thin layer of titanium (Ti) followed by a layer of gold (Au). The dielectric layer and the normal metal cap are patterned to the desired geometry.

Ginley, David S. (Evergreen, CO); Hietala, Vincent M. (Placitas, NM); Hohenwarter, Gert K. G. (Madison, WI); Martens, Jon S. (Sunnyvale, CA); Plut, Thomas A. (Albuquerque, NM); Tigges, Chris P. (Albuquerque, NM); Vawter, Gregory A. (Albuquerque, NM); Zipperian, Thomas E. (Albuquerque, NM)

1994-10-25T23:59:59.000Z

270

Multiphonon states in {sub 56}{sup 136}Ba{sub 80}  

SciTech Connect (OSTI)

Low-lying multiphonon states in {sup 136}Ba have been populated with the inelastic neutron scattering reaction. Excitation functions were performed at neutron energies from 2.2 to 3.9 MeV, and {gamma}-ray angular distributions were measured at 2.5, 3.0, and 3.5 MeV. Lifetimes have been determined using the Doppler-shift attenuation method, and electromagnetic transition rates have been deduced. The previously assigned 2{sub 1,ms}{sup +} mixed-symmetry state at 2128.9 keV has been confirmed and is not greatly fragmented. For the first time in the N=80 isotones, a 3{sub 2,ms}{sup +} two-phonon mixed-symmetry state is proposed. In addition, the 2{sub 5}{sup +} and the 4{sub 3}{sup +} levels at 2222.7 and 2356.4 keV, respectively, decay with large B(M1) values to the two-phonon 2{sub 2}{sup +} and 4{sub 1}{sup +} states, respectively, which suggests two-phonon mixed-symmetric character. Their excitation energies, however, are not consistent with this interpretation.

Mukhopadhyay, S.; Scheck, M.; Crider, B.; Choudry, S. N.; Elhami, E.; McEllistrem, M. T.; Orce, J. N. [Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055 (United States); Peters, E. [Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055 (United States); Yates, S. W. [Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506-0055 (United States); Department of Chemistry, University of Kentucky, Lexington, Kentucky 40506-0055 (United States)

2008-09-15T23:59:59.000Z

271

First-principles study of structural, electronic, vibrational, dielectric and elastic properties of tetragonal Ba{sub 2}YTaO{sub 6}  

SciTech Connect (OSTI)

We report first-principles study of structural, electronic, vibrational, dielectric, and elastic properties of Ba{sub 2}YTaO{sub 6}, a pinning material in high temperature superconductors (HTS), by using density functional theory. By using different exchange-correlation potentials, the accuracy of the calculated lattice constants of Ba{sub 2}YTaO{sub 6} has been achieved with GGA-RPBE, since many important physical quantities crucially depend on change in volume. We have calculated the electronic band structure dispersion, total and partial density of states to study the band gap origin and found that Ba{sub 2}YTaO{sub 6} is an insulator with a direct band gap of 3.50?eV. From Mulliken population and charge density studies, we conclude that Ba{sub 2}YTaO{sub 6} have a mixed ionic-covalent character. Moreover, the vibrational properties, born effective charges, and the dielectric permittivity tensor have been calculated using linear response method. Vibrational spectrum determined through our calculations agrees well with the observed Raman spectrum, and allows assignment of symmetry labels to modes. We perform a detailed analysis of the contribution of the various infrared-active modes to the static dielectric constant to explain its anisotropy, while electronic dielectric tensor of Ba{sub 2}YTaO{sub 6} is nearly isotropic, and found that static dielectric constant is in good agreement with experimental value. The six independent elastic constants were calculated and found that tetragonal Ba{sub 2}YTaO{sub 6} is mechanically stable. Other elastic properties, including bulk modulus, shear modulus, Young's modulus, Poisson's ratio, and elastic anisotropy ratios are also investigated and found that Poisson's ratio and Young's modulus of Ba{sub 2}YTaO{sub 6} are similar to that of other pinning materials in HTS.

Ganeshraj, C.; Santhosh, P. N., E-mail: santhosh@physics.iitm.ac.in [Low Temperature Physics Laboratory, Department of Physics, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu (India)

2014-10-14T23:59:59.000Z

272

Fluorine sites in glasses and transparent glass-ceramics of the system Na{sub 2}O/K{sub 2}O/Al{sub 2}O{sub 3}/SiO{sub 2}/BaF{sub 2}  

SciTech Connect (OSTI)

The transparent glass-ceramics obtained in the silicate system Na{sub 2}O/K{sub 2}O/SiO{sub 2}/BaF{sub 2} show homogeneously dispersed BaF{sub 2} nano crystals with a narrow size distribution. The X-ray diffraction and the nuclear magnetic resonance spectroscopy were applied to glasses and the respective glass-ceramics in order to clarify the crystallization mechanism and the role of fluorine during crystallization. With an increasing annealing time, the concentration and also the number of crystals remain approximately constant. With an increasing annealing temperature, the crystalline fraction increases until a saturation limit is reached, while the number of crystals decreases and the size of the crystals increases. Fluoride in the glassy network occurs as Al-F-Ba, Al-F-Na and also as Ba-F structures. The latter are transformed into crystalline BaF{sub 2} and fluoride is removed from the Al-F-Ba/Na bonds. However, some fluorine is still present in the glassy phase after the crystallization. -- Graphical abstract: The X-ray diffraction and the nuclear magnetic resonance spectroscopy were applied to glasses in the silicate system Na{sub 2}O/K{sub 2}O/SiO{sub 2}/BaF{sub 2} and the respective glass-ceramics with BaF{sub 2} nano crystals in order to clarify the crystallization mechanism and the role of fluorine during crystallization. Display Omitted Research highlights: {yields} BaF{sub 2} nano crystals are precipitated from a silicate glass system. {yields} Ostwald ripening during the late stage of crystallization does not occur. {yields} Fluorine in the glass is coordinated with Ba as well as Al together with Ba or Na.{yields} In the glass-ceramics, the residual fluorine is coordinated as Al-F-Ba/Na.

Bocker, Christian, E-mail: christian.bocker@uni-jena.d [Otto-Schott-Institut, Jena University, Fraunhoferstr. 6, 07743 Jena (Germany); Munoz, Francisco; Duran, Alicia [Instituto de Ceramica y Vidrio (CSIC), Kelsen 5, 28049 Madrid (Spain); Ruessel, Christian [Otto-Schott-Institut, Jena University, Fraunhoferstr. 6, 07743 Jena (Germany)

2011-02-15T23:59:59.000Z

273

Mercury nonstoichiometry of the Hg1-xBa2CuO4+ superconductor and the P(Hg)-P(O2)-T phase diagram of the Hg-Ba-Cu-O system.  

E-Print Network [OSTI]

1 Mercury nonstoichiometry of the Hg1-xBa2CuO4+ superconductor and the P(Hg)-P(O2)-T phase diagram-nonstoichiometry and exists in a certain P(Hg), P(O2) and T range. Mercury nonstoichiometry of Hg-1201 was investigated in the 923 T 1095 K; 2.0 P(Hg) 8.4 atm; 0.09 P(O2) 0.86 atm ranges. It was found that the mercury

Rudnyi, Evgenii B.

274

Correlation between upconversion photoluminescence and dielectric response in Ba-substituted (Sr{sub 1?x}Ba{sub x}){sub 4}(La{sub 0.85}Ho{sub 0.025}Yb{sub 0.125}){sub 2}Ti{sub 4}Nb{sub 6}O{sub 30}  

SciTech Connect (OSTI)

The filled tetragonal tungsten bronze (Sr{sub 1?x}Ba{sub x}){sub 4}(La{sub 0.85}Ho{sub 0.025}Yb{sub 0.125}){sub 2}Ti{sub 4}Nb{sub 6}O{sub 30} (SBLTNx: Ho-Yb) ceramics with different Ba substitution levels (x) are prepared. The upconversion photoluminescence (UC-PL) and dielectric permittivity are investigated. The substitution of Sr{sup 2+} ions at the A{sub 2}-sites by larger Ba{sup 2+} ions results in substantial variation of the UC-PL intensity as a function of substitution level x. Furthermore, the dielectric response to the substitution of Sr{sup 2+} by Ba{sup 2+} suggests a close correlation between the UC-PL intensity and dielectric permittivity. The origin for this correlation is discussed based on the random stress field (RSF) model.

Wei, T., E-mail: weitong.nju@gmail.com [College of Science, Civil Aviation University of China, Tianjin 300300 (China); Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093 (China); Wang, X. D. [College of Science, Civil Aviation University of China, Tianjin 300300 (China); Zhao, C. Z. [School of Electronics and Information Engineering, Tianjin Polytechnic University, Tianjin 300160 (China); Liu, M. F.; Liu, J. M., E-mail: liujm@nju.edu.cn [Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093 (China)

2014-06-30T23:59:59.000Z

275

Laser patterning and preferential orientation of two-dimensional planar {beta}-BaB{sub 2}O{sub 4} crystals on the glass surface  

SciTech Connect (OSTI)

The laser-induced crystallization method is applied to pattern two-dimensional planar {beta}-BaB{sub 2}O{sub 4} crystals on the surface of Sm{sub 2}O{sub 3}-BaO-B{sub 2}O{sub 3} glass. By scanning Yb:YVO{sub 4} fiber lasers (wavelength: 1080 nm) continuously with a small step (0.5 {mu}m) between laser irradiated areas, homogeneous planar {beta}-BaB{sub 2}O{sub 4} crystals are patterned successfully, and a preferential growth orientation of {beta}-BaB{sub 2}O{sub 4} crystals is confirmed from linearly polarized micro-Raman scattering spectrum and second harmonic intensity measurements. It is found that the crystal growth direction is perpendicular to the laser scanning direction. This relation, i.e., the perpendicular relation, is different from the behavior in discrete crystal line patterning, where the crystal growth direction is consistent with the laser scanning direction. The present study proposes the possibility of the control of crystal growth direction in laser-induced crystallization in glasses. - Graphical abstract: This figure shows confocal scanning laser microscope and polarized optical microscope photographs for {beta}-BaB{sub 2}O{sub 4} crystals obtained by laser irradiations. The laser scanning was repeated with a step of 0.5 {mu}m between the lines using the condition of the power of P=0.8 W and a laser scanning speed of S=8 {mu}m/s. It is suggested that {beta}-BaB{sub 2}O{sub 4} crystals in the overlapped laser-irradiated region are highly oriented and the c-axis direction of {beta}-BaB{sub 2}O{sub 4} crystals is perpendicular to the laser scanning direction. Highlights: Black-Right-Pointing-Pointer Laser-induced crystallization method is applied to pattern {beta}-BaB{sub 2}O{sub 4} crystals. Black-Right-Pointing-Pointer Two-dimensional planar crystals are patterned on the glass surface. Black-Right-Pointing-Pointer Preferential growth orientation of {beta}-BaB{sub 2}O{sub 4} crystals is confirmed. Black-Right-Pointing-Pointer Crystal growth direction is perpendicular to the laser scanning direction.

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

2012-01-15T23:59:59.000Z

276

(Sr,Ba)(Si,Ge){sub 2} for thin-film solar-cell applications: First-principles study  

SciTech Connect (OSTI)

In order to meet the increasing demand for electric power generation from solar energy conversion, the development of efficient light absorber materials has been awaited. To this end, the electronic and optical properties of advanced alkaline-earth-metals disilicides and digermanides (SrSi{sub 2}, BaSi{sub 2}, SrGe{sub 2}, and BaGe{sub 2}) are studied by means of the density functional theory using HSE06 exchange-correlation energy functional. Our calculations show that all these orthorhombic structured compounds have fundamental indirect band gaps in the range E{sub g} ? 0.891.25 eV, which is suitable for solar cell applications. The estimated lattice parameters and band gaps are in good agreement with experiments. Our calculations show that the electronic band structures of all four compounds are very similar except in the vicinity of the ?-point. The valence band of these compounds is made up by Si(Ge)-p states, whereas the conduction band is composed of Sr(Ba)-d states. Their band alignments are carefully determined by estimating the work function of each compound using slab model. The optical properties are discussed in terms of the complex dielectric function ?(?)?=??{sub 1}(?)?+?i?{sub 2}(?). The static and high-frequency dielectric constants are calculated, taking into account the ionic contribution. The absorption coefficient ?(?) demonstrates that a low energy dispersion of the conduction band, which results in a flat conduction band minimum, leads to large optical activity in these compounds. Therefore, alkaline-earth-metals disilicides and digermanides possess great potential as light absorbers for applications in thin-film solar cell technologies.

Kumar, Mukesh, E-mail: Kumar.Mukesh@nims.go.jp, E-mail: mkgarg79@gmail.com [Environmental Remediation Materials Unit, National Institute for Materials Science, Ibaraki 305-0044 (Japan); Umezawa, Naoto [Environmental Remediation Materials Unit, National Institute for Materials Science, Ibaraki 305-0044 (Japan); PRESTO, Japan Science and Technology Agency (JST), 4-1-8 Honcho Kawaguchi, Saitama 332-0012 (Japan); TU-NIMS Joint Research Center, School of Materials Science and Engineering, Tianjin University, 92 Weijin Road, Nankai District, Tianjin (China); Imai, Motoharu [Superconducting Properties Unit, National Institute for Materials Science, Ibaraki 305-0047 (Japan)

2014-05-28T23:59:59.000Z

277

A conversion route towards tubular SiO{sub 2} using rod-like BaSiF{sub 6} as a novel template  

SciTech Connect (OSTI)

A simple hydrothermal reaction between Ba(NO{sub 3}){sub 2} and K{sub 2}SiF{sub 6} results in the formation of 1D rod-like BaSiF{sub 6}. The BaSiF{sub 6} rods can act as efficient precursors for production of tubular SiO{sub 2} by hydrothermal reaction in alkaline solutions. Powder X-ray diffraction (XRD), X-ray photoelectron spectra (XPS), transmission electron microscopy (TEM), high resolution electron microscopy (HRTEM), and field emission scanning electron microscopy (FESEM) were used to characterize the phase and morphology of the final product. The experiments indicated the amount of NaOH, reaction temperature, and reaction time played important roles in the transformation process. A possible growth mechanism of tubular silica was proposed. - Graphical abstract: Tubular silica was prepared via a hydrothermal reaction between BaSiF{sub 6} and NaOH, in which BaSiF{sub 6} nanorods act as both a physical and chemical template. It was found that the amount of NaOH, reaction temperature, and reaction time played important roles in this transformation process.

Zhong Haoxiang; Huang Qingli; Ma Yingli [Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093 (China); Hong Jianming [Analytic Center of Nanjing University, Jiangsu, Nanjing 210093 (China); Chen Xuetai, E-mail: xtchen@netra.nju.edu.c [Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing National Laboratory of Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093 (China); Xue Ziling [Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996-1600 (United States)

2009-07-15T23:59:59.000Z

278

Synthesis of BaTiO[subscript 3]-20wt%CoFe[subscript 2]O[subscript 4] Nanocomposites via Spark Plasma Sintering  

SciTech Connect (OSTI)

Barium titanate-20wt% cobalt ferrite (BaTiO{sub 3}-20wt%CoFe{sub 2}O{sub 4}) nanocomposites were sintered from nanocrystalline BaTiO{sub 3} and CoFe{sub 2}O{sub 4} powders using spark plasma sintering (SPS) and pressureless sintering (PS) techniques. Using SPS, dense polycrystalline composites were obtained at a sintering temperature as low as 860 C and a time of 5 min whereas PS required a higher sintering temperature (1150 C) and time (120 min) to obtain similarly dense composites. Microstructural analysis of the composites showed that both the techniques retained nanocrystalline grain sizes after sintering. High resolution X-ray diffraction measurements revealed that the BaTiO{sub 3}-20wt%CoFe{sub 2}O{sub 4} composites sintered by the SPS technique did not exhibit formation of any new phase(s) due to reaction between the BaTiO{sub 3} and CoFe{sub 2}O{sub 4} phases during sintering. However, the PS technique resulted in the formation of additional phases (other than the BaTiO{sub 3} and CoFe{sub 2}O{sub 4} phases) in the composites. While the composites synthesized by SPS were of superior phase-purity, evidence of Fe diffusion from the spinel to the perovskite phase was found from X-ray diffraction and permittivity measurements.

Ghosh, Dipankar; Han, Hyuksu; Nino, Juan C.; Subhash, Ghatu; Jones, Jacob L. (Florida)

2012-10-23T23:59:59.000Z

279

Synthesis, structural characterization and properties of SrAl{sub 4?x}Ge{sub x}, BaAl{sub 4?x}Ge{sub x}, and EuAl{sub 4?x}Ge{sub x} (x?0.30.4)Rare examples of electron-rich phases with the BaAl{sub 4} structure type  

SciTech Connect (OSTI)

Three solid solutions with the general formula AEAl{sub 4?x}Ge{sub x} (AE=Eu, Sr, Ba; 0.32(1)?x?0.41(1)) have been synthesized via the aluminum self-flux method, and their crystal structures have been established from powder and single-crystal X-ray diffraction. They are isotypic and crystallize with the well-known BaAl{sub 4} structure type, adopted by the three AEAl{sub 4} end members. In all structures, Ge substitutes Al only at the 4e Wyckoff site. Results from X-rays photoelectron spectroscopy on EuAl{sub 4?x}Ge{sub x} and EuAl{sub 4} indicate that the interactions between the Eu{sup 2+} cations and the polyanionic framework are enhanced in the Ge-doped structure, despite the slightly elevated Fermi level. Magnetic susceptibility measurements confirm the local moment magnetism, expected for the [Xe]4f{sup 7} electronic configuration of Eu{sup 2+} and suggest strong ferromagnetic interactions at cryogenic temperatures. Resistivity data from single-crystalline samples show differences between the title compounds, implying different bonding characteristics despite the close Debye temperatures. A brief discussion on the observed electron count and homogeneity ranges for AEAl{sub 4?x}Ge{sub x} (AE=Eu, Sr, Ba) is also presented. - Graphical abstract: AEAl{sub 4?x}Ge{sub x} (AE=Eu, Sr, Ba; 0.32(1)?x?0.41(1)), three electron-rich phases with BaAl{sub 4} structure type have been synthesized and characterized. Display Omitted - Highlights: Three BaAl{sub 4}-type ternary aluminum germanides have been synthesized with Eu, Sr and Ba. Eu, Sr and Ba cations have no apparent influence on the solubility of Ge. The Ge atoms substitute Al on one of two framework sites, thereby strengthening the interactions between the cations and the polyanionic framework.

Zhang, Jiliang; Bobev, Svilen, E-mail: bobev@udel.edu

2013-09-15T23:59:59.000Z

280

Quantum Oscillations in the Parent pnictide BaFe2As2 : Itinerant Electrons in the Reconstructed State  

SciTech Connect (OSTI)

We report quantum oscillation measurements that enable the direct observation of the Fermi surface of the low temperature ground state of BaFe{sub 2}As{sub 2}. From these measurements we characterize the low energy excitations, revealing that the Fermi surface is reconstructed in the antiferromagnetic state, but leaving itinerant electrons in its wake. The present measurements are consistent with a conventional band folding picture of the antiferromagnetic ground state, placing important limits on the topology and size of the Fermi surface.

Analytis, J.G.

2010-05-26T23:59:59.000Z

Note: This page contains sample records for the topic "ba sin gr" from the National Library of EnergyBeta (NLEBeta).
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281

Zn-Doping Dependence of Stripe Order in La1.905Ba0.095CuO4  

SciTech Connect (OSTI)

The effect of Zn-doping on the stripe order in La{sub 1.905}Ba{sub 0.095}CuO{sub 4} has been studied by means of x-ray and neutron diffraction as well as magnetization measurements. While 1% Zn leads to an increase of the spin stripe order, it unexpectedly causes a wipe out of the visibility of the charge stripe order. A magnetic field of 10 Tesla applied along the c-axis has no reversing effect on the charge order. We compare this observation with the Zn-doping dependence of the crystal structure, superconductivity, and normal state magnetism.

Hucker, M.; Zimmermann, M.v.; Xu, Z.J.; Wen, J.S.; Gu, G.D.; Tian, W.; Zarestky, J.; Tranquada, J.M.

2011-04-01T23:59:59.000Z

282

Data:Edad1fff-07ba-49cd-9054-e492ad88936d | 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 NoEce78e10-0967-4d20-a270-53a70a3b054f No revisionEdad1fff-07ba-49cd-9054-e492ad88936d No revision

283

Data:209b4880-04bc-4f18-9295-39ba0506f055 | 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 No529a57c00c0 Noe-ed85d9cb7f6f No revision hasf18-9295-39ba0506f055 No

284

NOx Storage-Reduction Characteristics of Ba-Based Lean NOx Trap Catalysts Subjected to Simulated Road Aging  

SciTech Connect (OSTI)

Although Lean NO{sub x} Trap (LNT) catalyst technology has made significant strides in recent years, the issue of LNT durability remains problematic. Following on from our previous research concerning the effect of ceria addition on LNT preformance, in this study we focus on the role of ceria in ameliorating the deterioration of Ba-based LNT catalysts during aging. Indeed, we have observed that spectacular improvements in LNT durability can be achieved through the incorporation of CeO{sub 2}-ZrO{sub 2} into the LNT formulation, and, to a lesser extent, La-stabilized ceria.

Ji, Yaying [University of Kentucky; Fisk, Courtney [University of Kentucky; Easterling, Vencon [University of Kentucky; Graham, Uschi [University of Kentucky; Poole, Adam [University of Kentucky; Crocker, Mark [University of Kentucky; Choi, Jae-Soon [ORNL; Partridge Jr, William P [ORNL; Wilson, Karen [University of York, UK

2010-01-01T23:59:59.000Z

285

Data:6133353e-33af-4276-a282-3daf0dd8a3ba | 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-2c5cfacaa2ee No revisiondaf0dd8a3ba No revision has been

286

Data:96050660-269e-4d31-a760-777ba27065d9 | 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 revisione0a2d50bdf35248292f1 No789501c8a3b5 Noc60f0b1242e7 Nobcc9d474fb9a77ba27065d9 No revision has

287

Data:7ebeffe5-fb88-45f8-8376-6ba307047cb9 | 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-2ea652fe29afebeffe5-fb88-45f8-8376-6ba307047cb9 No revision has been

288

Data:856cce9a-2857-4c92-afff-3d562710ba6d | 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 revisione0a2d50bdf No revisionb27d098e No revision7c057688746d No revisionafff-3d562710ba6d No

289

Data:3dfe9516-886e-413a-baed-ae8390939e0b | Open Energy Information  

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290

Highly uniform bipolar resistive switching characteristics in TiO{sub 2}/BaTiO{sub 3}/TiO{sub 2} multilayer  

SciTech Connect (OSTI)

Nanoscale multilayer structure TiO{sub 2}/BaTiO{sub 3}/TiO{sub 2} has been fabricated on Pt/Ti/SiO{sub 2}/Si substrate by chemical solution deposition method. Highly uniform bipolar resistive switching (BRS) characteristics have been observed in Pt/TiO{sub 2}/BaTiO{sub 3}/TiO{sub 2}/Pt cells. Analysis of the current-voltage relationship demonstrates that the space-charge-limited current conduction controlled by the localized oxygen vacancies should be important to the resistive switching behavior. X-ray photoelectron spectroscopy results indicated that oxygen vacancies in TiO{sub 2} play a crucial role in the resistive switching phenomenon and the introduced TiO{sub 2}/BaTiO{sub 3} interfaces result in the high uniformity of bipolar resistive switching characteristics.

Ma, W. J.; Zhang, X. Y.; Wang, Ying; Zheng, Yue, E-mail: zhengy35@mail.sysu.edu.cn, E-mail: wangbiao@mail.sysu.edu.cn [State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, 510275 Guangzhou (China) [State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, 510275 Guangzhou (China); Micro and Nano Physics and Mechanics Research Laboratory, School of Physics and Engineering, Sun Yat-Sen University, 510275 Guangzhou (China); Lin, S. P. [Micro and Nano Physics and Mechanics Research Laboratory, School of Physics and Engineering, Sun Yat-Sen University, 510275 Guangzhou (China) [Micro and Nano Physics and Mechanics Research Laboratory, School of Physics and Engineering, Sun Yat-Sen University, 510275 Guangzhou (China); Sino-French Institute of Nuclear Engineering and Technology, Zhuhai Campus, Sun Yat-Sen University, Zhuhai 519082 (China); Luo, J. M.; Wang, B., E-mail: zhengy35@mail.sysu.edu.cn, E-mail: wangbiao@mail.sysu.edu.cn [State Key Laboratory of Optoelectronic Materials and Technologies, School of Physics and Engineering, Sun Yat-Sen University, 510275 Guangzhou (China); Li, Z. X. [Micro and Nano Physics and Mechanics Research Laboratory, School of Physics and Engineering, Sun Yat-Sen University, 510275 Guangzhou (China)] [Micro and Nano Physics and Mechanics Research Laboratory, School of Physics and Engineering, Sun Yat-Sen University, 510275 Guangzhou (China)

2013-12-23T23:59:59.000Z

291

Josefina Pl: Su partida sin retorno  

E-Print Network [OSTI]

Almera. Es en la revista Donosta de San Sebastin donde publica su primer poema, a los 6 aos. En 1926 contrae matrimonio con el ceramista paraguayo Julin de la Herrera y ya en tierra guaran se incorpora al proceso cultural trabajando como..., Herib Campos Cervera, Elvio Romero, Oscar Ferreiro, entre otros. En 1952 es miembro fundador del movimiento "Arte Nuevo," punta de lanza para la renovacin de la plstica moderna paraguaya. En 1957 obtiene, junto a su discpulo Jos Laterza, el premio...

Bogado, Ví ctor

1999-04-01T23:59:59.000Z

292

X-ray and neutron powder diffraction studies of Ba(Nd{sub x}Y{sub 2-x})CuO{sub 5}  

SciTech Connect (OSTI)

Ba(R,R'){sub 2}CuO{sub 5} (R,R'=lanthanides and Y) plays an important role as a flux-pinning agent in enhancing the superconducting properties of the Ba{sub 2}(R,R')Cu{sub 3}O{sub 6+x} (R,R'=lanthanides and Y) coated conductors. Using X-ray diffraction and neutron diffraction, we found that the Ba(Nd{sub x}Y{sub 2-x})CuO{sub 5} solid solution adopts two structure types. In the Nd-rich region (1.8{<=}x{<=}2.0), the materials are of brown color (commonly referred to as the 'brown phase'), and the structure is tetragonal with space group I4/mbm (no. 127). In the Y-rich region (0.0{<=}x{<=}1.4), the materials are green (commonly referred to as the 'green phase') and the structure is orthorhombic with space group Pnma (no. 62). A two-phase region (1.4Ba(Nd{sub x}Y{sub 2-x})CuO{sub 5} (isostructural to BaY{sub 2}CuO{sub 5}), are discussed in this paper. - Graphical abstract: Perspective view of the 'green phase' Ba(Nd{sub x}Y{sub 2-x})CuO{sub 5} structure along the b-axis, showing the isolated square pyramids of [CuO{sub 5}] and the trigonal prisms, RO{sub 7}, around the lanthanide sites.

Liu, G. [Ceramics Division, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899 (United States); Huang, Q. [NIST Center for Neutron Research, Naperville, IL 60563 (United States); Kaduk, J.A. [INEOS Technologies, Naperville, IL 60563 (United States); Yang, Z. [Yunnan Normal University, Kunming 650092 (China); Lucas, C. [Chemistry and Biochemistry Department, University of Maryland, College Park, MD 20742 (United States); Wong-Ng, W. [Ceramics Division, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899 (United States)], E-mail: Winnie.wong-ng@nist.gov

2008-12-15T23:59:59.000Z

293

Competition between stripe and checkerboard magnetic instabilities in Mn-doped BaFe2As2  

SciTech Connect (OSTI)

The appearance of unconventional superconductivity often requires the suppression of an antiferromagnetic (AFM) ordered state by tuning the chemical composition. In BaFe2As2, the AFM ordered state is driven by Fermi surface nesting, resulting in stripe magnetic ordering with propagation vector Qstripe = (; 0) (in Fe square lattice notation). Co substitution acts as an electron donor that destabilizes the nesting condition,1 leading to suppression of the stripe AFM ordering2 and the appearance of superconductivity.3,4 Mn is nominally the hole-doping counterpart of Co which should also detune the Fermi surface nesting, but it is not a superconductor.5 Here we report that Mn doping does not act solely as a hole donor, but instead introduces strong spin uctuations at a wavevector (; ) that is unrelated to the Fermi surface topology of BaFe2As2. Spin uctuations at (; ) and (; 0) coexist, suggesting the Mn dopants act as local magnetic impurities that polarize neighbouring Fe/Mn spins, potentially disrupting superconductivity.

Pratt, Daniel [Ames Laboratory and Iowa State University; Kim, M. G. [Ames Laboratory and Iowa State University; Ran, S. [Ames Laboratory and Iowa State University; Thaler, A. [Ames Laboratory and Iowa State University; Granroth, Garrett E [ORNL; Marty, Karol J [ORNL; Tian, W. [University of Tennessee, Knoxville (UTK); Zarestky, J. L. [Ames Laboratory and Iowa State University; Lumsden, Mark D [ORNL; Budko, S L [Ames Laboratory and Iowa State University; Canfield, P. C. [Ames Laboratory; Goldman, A. I. [Ames Laboratory and Iowa State University; Mcqueeney, R J [Ames Laboratory and Iowa State University; Tucker, G. S. [Ames Laboratory and Iowa State University

2012-01-01T23:59:59.000Z

294

Magnetically polarized Ir dopant atoms in superconducting Ba(Fe1?xIrx)2As2  

SciTech Connect (OSTI)

We investigate the magnetic polarization of the Ir 5d dopant states in the pnictide superconductor Ba(Fe1?xIrx)2As2 with x=0.027(2) using Ir L3 edge x-ray resonant magnetic scattering (XRMS). Despite the fact that doping partially suppresses the antiferromagnetic transition, we find that magnetic order survives around the Ir dopant sites. The Ir states are magnetically polarized with commensurate stripe-like antiferromagnetic order and long correlations lengths, ?mag>2800 and >850 , in the ab plane and along the c axis, respectively, driven by their interaction with the Fe spins. This Ir magnetic order persists up to the Nel transition of the majority Fe spins at TN=74(2) K. At 5 K we find that magnetic order coexists microscopically with superconductivity in Ba(Fe1?xIrx)2As2. The energy dependence of the XRMS through the Ir L3 edge shows a non-Lorentzian line shape, which we explain in terms of interference between Ir resonant scattering and Fe nonresonant magnetic scattering.

Dean, M.P.M.; Kim, M.G.; Kreyssig, A.; Kim, J.W.; Liu, X.; Ryan, P.J.; Thaler, A.; Budko, S.L.; Strassheim, W.; Canfield, P.C.; Hill, J.P.; Goldman, A.I.

2012-04-25T23:59:59.000Z

295

Inclusion property of Cs, Sr, and Ba impurities in LiCl crystal formed by layer-melt crystallization  

SciTech Connect (OSTI)

Pyroprocessing is one of the promising technologies enabling the recycling of spent nuclear fuels from a commercial light water reactor (LWR). In general, pyroprocessing uses dry molten salts as electrolytes. In particular, LiCl waste salt after pyroprocessing contains highly radioactive I/II group fission products mainly composed of Cs, Sr, and Ba impurities. Therefore, it is beneficial to reuse LiCl salt in the pyroprocessing as an electrolyte for economic and environmental issues. Herein, to understand the inclusion property of impurities within LiCl crystal, the physical properties such as lattice parameter change, bulk modulus, and substitution enthalpy of a LiCl crystal having 0-6 at% Cs{sup +} or Ba{sup 2+} impurities under existence of 1 at% Sr{sup 2+} impurity were calculated via the first-principles density functional theory. The substitution enthalpy of LiCl crystals having 1 at% Sr{sup 2+} showed slightly decreased value than those without Sr{sup 2+} impurity. Therefore, through the substitution enthalpy calculation, it is expected that impurities will be incorporated within LiCl crystal as co-existed form rather than as a single component form. (authors)

Choi, Jung-Hoon; Cho, Yung-Zun; Lee, Tae-Kyo; Eun, Hee-Chul; Kim, Jun-Hong; Park, Hwan-Seo; Kim, In-Tae; Park, Geun-Il [Nuclear Fuel Cycle Waste Treatment Research Division, Korea Atomic Energy Research Institute, Daejeon, 305-353 (Korea, Republic of)

2013-07-01T23:59:59.000Z

296

Synthesis and nonlinear optical properties of BaTi(BO{sub 3}){sub 2} and Ba{sub 3}Ti{sub 3}O{sub 6}(BO{sub 3}){sub 2} crystals in glasses with high TiO{sub 2} contents  

SciTech Connect (OSTI)

The ternary BaO-TiO{sub 2}-B{sub 2}O{sub 3} glasses containing a large amount of TiO{sub 2} (20-40mol%) are prepared, and their optical basicities ({lambda}), the formation, structural features and second-order optical nonlinearities of BaTi(BO{sub 3}){sub 2} and Ba{sub 3}Ti{sub 3}O{sub 6}(BO{sub 3}){sub 2} crystals are examined to develop new nonlinear optical materials. It is found that the glasses with high TiO{sub 2} contents of 30-40mol% show large optical basicities of {lambda}=0.81-0.87, suggesting the high polarizabity of TiO{sub n} polyhedra (n=4-6) in the glasses. BaTi(BO{sub 3}){sub 2} and Ba{sub 3}Ti{sub 3}O{sub 6}(BO{sub 3}){sub 2} crystals are found to be formed as main crystalline phases in the glasses. It is found that BaTi(BO{sub 3}){sub 2} crystals tend to orient at the surface of crystallized glasses. The new XRD pattern for the Ba{sub 3}Ti{sub 3}O{sub 6}(BO{sub 3}){sub 2} phase is proposed through Rietvelt analysis. The second harmonic intensities of crystallized glasses were found to be 0.8 times as large as {alpha}-quartz powders, i.e., I{sup 2{omega}}(sample)/I{sup 2{omega}}({alpha}-quartz)=0.8, for the sample with BaTi(BO{sub 3}){sub 2} crystals and to be I{sup 2{omega}}(sample)/I{sup 2{omega}}({alpha}-quartz)=68 for the sample with Ba{sub 3}Ti{sub 3}O{sub 6}(BO{sub 3}){sub 2} crystals. The Raman scattering spectra for these two crystalline phases are measured for the first time and their structural features are discussed.

Kosaka, Shinji [Department of Chemistry, Nagaoka University of Technology, 1603-1Kamitomioka-cho, Nagaoka 940-2188 (Japan); Benino, Yasuhiko [Department of Chemistry, Nagaoka University of Technology, 1603-1Kamitomioka-cho, Nagaoka 940-2188 (Japan); Fujiwara, Takumi [Department of Chemistry, Nagaoka University of Technology, 1603-1Kamitomioka-cho, Nagaoka 940-2188 (Japan); Dimitrov, Vesselin [Department of Silicate Technology, University of Chemical Technology and Metallurgy, 8 Kl, Ohridki Blvd., Sofia 1756 (Bulgaria); Komatsu, Takayuki [Department of Chemistry, Nagaoka University of Technology, 1603-1Kamitomioka-cho, Nagaoka 940-2188 (Japan)]. E-mail: komatsu@chem.nagaokaut.ac.jp

2005-06-15T23:59:59.000Z

297

B.A. GEOLOGY CHECKLIST of required courses for major Courses in Natural Sciences: 5-6 courses, 18 credits minimum*  

E-Print Network [OSTI]

B.A. GEOLOGY CHECKLIST of required courses for major Courses in Natural Sciences: 5-6 courses, 18 year, either semester *COURSES MUST BE SELECTED WITH CONSULTATION AND APPROVAL OF A GEOLOGY FACULTY or 4th year, either semester Introductory Geology Courses: 3 courses, 11-12 credits Course Credits When

Massachusetts at Amherst, University of

298

New oxyfluoride glass with high fluorine content and laser patterning of nonlinear optical BaAlBO{sub 3}F{sub 2} single crystal line  

SciTech Connect (OSTI)

A new oxyfluoride glass of 50BaF{sub 2}-25Al{sub 2}O{sub 3}-25B{sub 2}O{sub 3} (mol. %) with a large fraction of fluorine, i.e., F/(F + O) = 0.4, was prepared using a conventional melt-quenching method in order to synthesize new glass-ceramics containing nonlinear optical oxyfluoride crystals. The refractive index at 632.8 nm and ultra-violet cutoff wavelength of the glass were 1.564 and {approx}200 nm, respectively. Eu{sup 3+} ions in the glass showed a high quantum yield of 88% in the photoluminescence spectrum in the visible region. BaAlBO{sub 3}F{sub 2} crystals (size: 50-100 nm) showing second harmonic generations were formed through the crystallization of the glass. Lines consisting of BaAlBO{sub 3}F{sub 2} crystals were patterned successfully on the glass surface by laser irradiations (Yb:YVO{sub 4} laser with a wavelength of 1080 nm, laser power of 1.1 W, scanning speed of 8 {mu}m/s). High resolution transmission electron microscope observations combined with a focused ion beam technique indicate that BaAlBO{sub 3}F{sub 2} crystals are highly oriented just like a single crystal. The present study proposes that the new oxyfluoride glass and glass-ceramics prepared have a high potential for optical device applications.

Shionozaki, K.; Honma, T.; Komatsu, T. [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan)

2012-11-01T23:59:59.000Z

299

Effect of strain on tunability in Ba0.60Sr0.40TiO3 thin films on PtSi substrates  

E-Print Network [OSTI]

Effect of strain on tunability in Ba0.60Sr0.40TiO3 thin films on PtSi substrates D. M. Potrepkaa, M. W. Cole, and W. D. Nothwang Weapons & Materials Research Directorate, Active Materials Research discussed the effects that postannealing in oxygen can have to overcome limits on oxygen diffusion

Alpay, S. Pamir

300

Political Science Sample 4-5 Year Study Plan for Doctoral Program Current catalog for student with B.A., major field International Relations with minor fields  

E-Print Network [OSTI]

Political Science Sample 4-5 Year Study Plan for Doctoral Program Current catalog for student with B.A., major field International Relations with minor fields Comparative Politics and Political Politics PSC 710r Proseminar in American Politics Year One: Semester 2 PSC 702 Advanced Quantitative

Ahmad, Sajjad

Note: This page contains sample records for the topic "ba sin gr" 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

COEXTRUSION OF TPU AND BaSO4 FILLED MEDICAL-GRADE TPU Guangyu Lu, Dilhan M. Kalyon, Iskender Yilgor* and Emel Yilgor*  

E-Print Network [OSTI]

the partial cross-section of stripe tubing that was extruded with unfilled TPU (matrix) and 20% BaSO4 filled TPU suspension (stripe) extruded at the same temperature, 210°C. The difference in viscosities between to be 0.64 using the method of Ouchiyama and Tanaka (6, 7). A Harrel single screw coextrusion system

302

Essential Studies Worksheet B.A. with major in Computer Science I. Communication 9 Credits (6 credits writing and 3 credits Oral Communication)  

E-Print Network [OSTI]

Essential Studies Worksheet ­ B.A. with major in Computer Science I. Communication 9 Credits (6 credits writing and 3 credits Oral Communication) Special Emphasis Area: Course: Credits: Semester Special Emphasis Area requirements that may fall outside of Communication, Social Sciences, Arts

Delene, David J.

303

SAMPLE PROGRAMSAMPLE PROGRAMSAMPLE PROGRAMSAMPLE PROGRAM PHILOSOPHY & RELIGION B.A.PHILOSOPHY & RELIGION B.A.PHILOSOPHY & RELIGION B.A.PHILOSOPHY & RELIGION B.A.  

E-Print Network [OSTI]

SAMPLE PROGRAMSAMPLE PROGRAMSAMPLE PROGRAMSAMPLE PROGRAM PHILOSOPHY & RELIGION B.A.PHILOSOPHY & RELIGION B.A.PHILOSOPHY & RELIGION B.A.PHILOSOPHY & RELIGION B.A. 2005: Philosophy & Religion Elective ** 3 MATH 156: College Algebra 3 and MATH 157: Plane Trigonometry 2 or MATH

Gering, Jon C.

304

Greenhouse Heating Checklist1 R. A. Bucklin, P. H. Jones, B.A. Barmby, D. B. McConnell, and R. W. Henley2  

E-Print Network [OSTI]

CIR791 Greenhouse Heating Checklist1 R. A. Bucklin, P. H. Jones, B.A. Barmby, D. B. Mc heating is the union of an appropriate heat source and an efficient heat distribu- tion system. The best greenhouse heat source in the world is useless if the heat cannot be transferred to the plant environment

Watson, Craig A.

305

Degrees Offered: BA, BSME, BSMS, MAE, MME, MMS, Studies in mechanical engineering can lead to specialization in one or more of  

E-Print Network [OSTI]

fluid mechanics and fluid­structure interactions,stochastic mechanics,fluid dynamics,heat transfer1 Degrees Offered: BA, BSME, BSMS, MAE, MME, MMS, MS, PhD Studies in mechanical engineering can lead to specialization in one or more of a diverse set of areas, including mechanics, computational

Richards-Kortum, Rebecca

306

A phenomenological thermodynamic potential for BaTiO3 single crystals Department of Materials Science and Engineering, The Pennsylvania State University, University Park,  

E-Print Network [OSTI]

A phenomenological thermodynamic potential for BaTiO3 single crystals Y. L. Lia Department; accepted 4 August 2005; published online 16 September 2005 A phenomenological thermodynamic potential is to con- struct such a thermodynamic potential. II. PHENOMENOLOGICAL THERMODYNAMIC POTENTIAL

Chen, Long-Qing

307

Oxygen-related dielectric relaxation and leakage characteristics of Pt,,Ba,Sr...TiO3 Pt thin-film capacitors  

E-Print Network [OSTI]

Oxygen-related dielectric relaxation and leakage characteristics of Pt?,,Ba,Sr...TiO3 ?Pt thin to the postannealing temperature in oxygen and nitrogen atmosphere. High leakage currents and low-frequency dielectric and subsequently annealed in oxygen at 350 °C. Such results are related to the mobile oxygen ions and oxygen

Cao, Wenwu

308

Light-induced oxygen-ordering dynamics in ,,Y,Pr...Ba2Cu3O6.7: A Raman spectroscopy and Monte Carlo study  

E-Print Network [OSTI]

Light-induced oxygen-ordering dynamics in ,,Y,Pr...Ba2Cu3O6.7: A Raman spectroscopy and Monte Carlo energy barrier which impedes oxygen movement in the plane unless the oxygen atoms are excited by light for oxygen reordering in the chain plane being at the origin of Raman photobleaching and related effects. DOI

Nabben, Reinhard

309

Nesting between hole and electron pockets in Ba(Fe1-xCox)2As2 (x=00.3) observed with angle-resolved photoemission  

E-Print Network [OSTI]

Nesting between hole and electron pockets in Ba(Fe1-xCox)2As2 (x=0­0.3) observed with angle and electrons is smaller than predicted by theory. Finally, we discuss the quality of nesting in the different regions of the phase diagram. The presence of the third hole pocket significantly weakens the nesting at x

Paris-Sud 11, Université de

310

Single Phase Melt Processed Powellite (Ba,Ca) MoO{sub 4} For The Immobilization Of Mo-Rich Nuclear Waste  

SciTech Connect (OSTI)

Crystalline and glass composite materials are currently being investigated for the immobilization of combined High Level Waste (HLW) streams resulting from potential commercial fuel reprocessing scenarios. Several of these potential waste streams contain elevated levels of transition metal elements such as molybdenum (Mo). Molybdenum has limited solubility in typical silicate glasses used for nuclear waste immobilization. Under certain chemical and controlled cooling conditions, a powellite (Ba,Ca)MoO{sub 4} crystalline structure can be formed by reaction with alkaline earth elements. In this study, single phase BaMoO{sub 4} and CaMoO{sub 4} were formed from carbonate and oxide precursors demonstrating the viability of Mo incorporation into glass, crystalline or glass composite materials by a melt and crystallization process. X-ray diffraction, photoluminescence, and Raman spectroscopy indicated a long range ordered crystalline structure. In-situ electron irradiation studies indicated that both CaMoO{sub 4} and BaMoO{sub 4} powellite phases exhibit radiation stability up to 1000 years at anticipated doses with a crystalline to amorphous transition observed after 1 X 10{sup 13} Gy. Aqueous durability determined from product consistency tests (PCT) showed low normalized release rates for Ba, Ca, and Mo (<0.05 g/m{sup 2}).

Brinkman, Kyle [Savannah River Site (SRS), Aiken, SC (United States); Marra, James [Savannah River Site (SRS), Aiken, SC (United States); Fox, Kevin [Savannah River Site (SRS), Aiken, SC (United States); Reppert, Jason [Savannah River Site (SRS), Aiken, SC (United States); Crum, Jarrod [Paci fic Northwest National Laboratory , Richland, WA (United States); Tang, Ming [Los Alamos National Laboratory , Los Alamos, NM (United States)

2012-09-17T23:59:59.000Z

311

Strong blue and white photoluminescence emission of BaZrO{sub 3} undoped and lanthanide doped phosphor for light emitting diodes application  

SciTech Connect (OSTI)

In this paper, we report the obtained strong broadband blue photoluminescence (PL) emission centered at 427 nm for undoped BaZrO{sub 3} observed after 266 nm excitation of submicron crystals prepared by hydrothermal/calcinations method. This emission is enhanced with the introduction of Tm{sup 3+} ions and is stronger than the characteristic PL blue emission of such lanthanide. The proposed mechanism of relaxation for host lattice emission is based on the presence of oxygen vacancies produced during the synthesis process and the charge compensation due to the difference in the electron valence between dopant and substituted ion in the host. Brilliant white light emission with a color coordinate of (x=0.29, y=0.32) was observed by combining the blue PL emission from the host with the green and red PL emission from Tb{sup 3+} and Eu{sup 3+} ions, respectively. The color coordinate can be tuned by changing the ratio between blue, green and red band by changing the concentration of lanthanides. - Graphical abstract: Strong blue emission from undoped BaZrO{sub 3} phosphor and white light emission by doping with Tb{sup 3+} (green) and Eu{sup 3+} (red) after 266 nm excitation. Highlights: Black-Right-Pointing-Pointer Blue emission from BaZrO{sub 3} phosphor. Black-Right-Pointing-Pointer Blue emission enhanced with Tm{sup 3+}. Black-Right-Pointing-Pointer White light from BaZrO{sup 3+} phosphor.

Romero, V.H. [Centro de Investigaciones en Optica, A. P. 1-948, Leon Gto., 37160 (Mexico)] [Centro de Investigaciones en Optica, A. P. 1-948, Leon Gto., 37160 (Mexico); De la Rosa, E., E-mail: elder@cio.mx [Centro de Investigaciones en Optica, A. P. 1-948, Leon Gto., 37160 (Mexico); Salas, P. [Centro de Fisica Aplicada y Tecnologia Avanzada, Universidad Nacional Autonoma de Mexico, A.P. 1-1010, Queretaro, Qro. 76000 (Mexico)] [Centro de Fisica Aplicada y Tecnologia Avanzada, Universidad Nacional Autonoma de Mexico, A.P. 1-1010, Queretaro, Qro. 76000 (Mexico); Velazquez-Salazar, J.J. [Department of Physics and Astronomy, The University of Texas at San Antonio One UTSA Circle, San Antonio TX 78249 (United States)] [Department of Physics and Astronomy, The University of Texas at San Antonio One UTSA Circle, San Antonio TX 78249 (United States)

2012-12-15T23:59:59.000Z

312

Characterization of the reaction products that develop in the processing of Al{sub 2}O{sub 3}/BaZrO{sub 3} laminated composites  

SciTech Connect (OSTI)

The absence of a chemical reaction at an interface is conventionally thought to be an important criterion in producing a tough ceramic matrix composite (CMC). As a result of this criterion, interphases in CMCs were chosen on the basis of their chemical reactivity. A weak interface results in crack deflection, crack bridging, and, in fiber-reinforced ceramics, fiber pullout, resulting in an increased fracture toughness. In this paper, the authors present microstructural observations on alumina (Al{sub 2}O{sub 3})-barium zirconate (BaZrO{sub 3}) laminated composites wherein the reaction products that develop during processing resulted in sharp interfaces and appear to be weak enough to deflect cracks. These in situ reaction products in Al{sub 2}O{sub 3}-BaZrO{sub 3} laminated composites were characterized with the use of a scanning electron microscope, an electron microprobe, and a transmission electron microscope. The phases that develop, ZrO{sub 2}, BaO{center_dot}Al{sub 2}O{sub 3}, and BaO{center_dot}6 Al{sub 2}O{sub 3}, produced sharp interfaces and are arranged in a sequence that could be predicted by using information from the phase diagram.

Gladysz, G.M. [Youngstown State Univ., OH (United States). Dept. of Chemical Engineering] [Youngstown State Univ., OH (United States). Dept. of Chemical Engineering; Schmuecker, M.; Schneider, H. [German Aerospace Establishment, Cologne (Germany)] [German Aerospace Establishment, Cologne (Germany); Chawla, K.K. [Univ. of Alabama, Birmingham, AL (United States). Dept. of Materials and Mechanical Engineering] [Univ. of Alabama, Birmingham, AL (United States). Dept. of Materials and Mechanical Engineering; Joslin, D.L.; Ferber, M.K. [Oak Ridge National Lab., TN (United States)] [Oak Ridge National Lab., TN (United States)

1998-04-01T23:59:59.000Z

313

X-Ray Storage Luminescence of BaFCl:Eu2+ Single Crystals Nomadics, Inc., 1024 South InnoVation Way, Stillwater, Oklahoma 74074  

E-Print Network [OSTI]

X-Ray Storage Luminescence of BaFCl:Eu2+ Single Crystals Wei Chen* Nomadics, Inc., 1024 South InnoVed: January 18, 2005; In Final Form: March 22, 2005 Temperature behaviors of X-ray luminescence (XL might not be oxidized to Eu3+ upon X-ray or -irradiation. Instead, the color centers, Cl excitons

Chen, Reuven

314

Unconventional Electronic Reconstruction in Undoped (Ba,Sr)Fe2As2 Across the Spin Density Wave Transition  

SciTech Connect (OSTI)

Through a systematic high-resolution angle-resolved photoemission study of the iron pnictide compounds (Ba,Sr)Fe{sub 2}As{sub 2}, we show that the electronic structures of these compounds are significantly reconstructed across the spin density wave transition, which cannot be described by a simple folding scenario of conventional density wave ordering. Moreover, we find that LDA calculations with an incorporated suppressed magnetic moment of 0.5{mu}{sub B} can match well the details in the reconstructed electronic structure, suggesting that the nature of magnetism in the pnictides is more itinerant than local, while the origin of suppressed magnetic moment remains an important issue for future investigations.

Yi, M.

2010-06-02T23:59:59.000Z

315

Coexistence of the spini-density-wave and superconductivity in the Ba1-xKxFe2As2  

SciTech Connect (OSTI)

The relation between the spin-density-wave (SDW) and superconducting order is a central topic in current research on the FeAs-based high T{sub c} superconductors. Conflicting results exist in the LaFeAs(O,F)-class of materials, for which whether the SDW and superconductivity are mutually exclusive or they can coexist has not been settled. Here we show that for the (Ba,K)Fe{sub 2}As{sub 2} system, the SDW and superconductivity can coexist in an extended range of compositions. The availability of single crystalline samples and high value of the energy gaps would make the materials a model system to investigate the high T{sub c} ferropnictide superconductivity.

Bao, Wei [Los Alamos National Laboratory; Chen, H [HEFEI NAT. LAB; Ren, Y [ANL; Qiu, Y [NIST CENTER FOR NEUTRON; Liu, R [HEFEI NAT. LAB.; Wu, G H [HEFEI NAT. LAB; Wu, T [HEFEI NAT. LAB.; Xie, Y L [HEFEI NAT. LAB; Wang, F [HEFEI NAT. LAB.; Huang, Q [NIST CENTER FOR NEUTRON; Chen, X H [HEFEI NAT. LAB

2008-01-01T23:59:59.000Z

316

Angular-dependent upper critical field of overdoped Ba(Fe1-xNix)2As2  

SciTech Connect (OSTI)

In-plane resistivity measurements as a function of temperature, magnetic field, and its orientation with respect to the crystallographic ab plane were used to study the upper critical field, Hc2, of two overdoped compositions of the iron-based superconductor Ba(Fe1-xNix)2As2, x=0.054 and x=0.072. Measurements were performed using precise alignment (with accuracy less than 0.1?) of magnetic field with respect to the Fe-As plane. The dependence of the Hc2 on angle ? between the field and the ab plane was measured in isothermal conditions in a broad temperature range. We found that the shape of Hc2(?) clearly deviates from the Ginzburg-Landau functional form.

Murphy, J. [Ames Laboratory; Tanatar, Michael A. [Ames Laboratory; Graf, D. [Florida State University; Brooks, J. S. [Florida State University; Budko, Sergey L. [Ames Laboratory; Canfield, Paul C. [Ames Laboratory; Kogan, V. G. [Ames Laboratory; Prozorov, Ruslan [Ames Laboratory

2013-03-07T23:59:59.000Z

317

Superconducting Tl/sub 2/Ba/sub 2/CuO/sub 6/: the orthorhombic form  

SciTech Connect (OSTI)

The structure of an orthorhombic variant of Tl/sub 2/Ba/sub 2/CuO/sub 6/ (Z = 4), with a superconducting onset at 90K, has been studied using neutron powder diffractometry at 12 K (a = 5.4834(3), b = 5.4586(3), c = 23.198(1) /Angstrom/), 60 K (a = 5.4834(3), b = 5.4585(3), c = 23.199(1) /Angstrom/), and 293 K (a = 5.4967(3), b = 5.4651(3), c = 23.246(1) /Angstrom/). The distortion from I4/mmm symmetry, reported in single-crystal X-ray investigations, to Abma is manifested in the Tl-O layer. At the temperatures studied, the coordination of Tl to oxygen is (2 + 1 + 2) square pyramidal rather than octahedral. At lower temperatures, distortion decreases but does not disappear. Despite the orthorhombic symmetry the CuO/sub 2/-layers remain flat.

Parise, J.B.; Gopalakrishnan, J.; Subramanian, M.A.; Sleight, A.W.

1988-10-01T23:59:59.000Z

318

Accuracy Test for Link Prediction in terms of Similarity Index: The Case of WS and BA Models  

E-Print Network [OSTI]

Link prediction is a technique that uses the topological information in a given network to infer the missing links in it. Since past research on link prediction has primarily focused on enhancing performance for given empirical systems, negligible attention has been devoted to link prediction with regard to network models. In this paper, we thus apply link prediction to two network models: The Watts-Strogatz (WS) model and Barab\\'asi-Albert (BA) model. We attempt to gain a better understanding of the relation between accuracy and each network parameter (mean degree, the number of nodes and the rewiring probability in the WS model) through network models. Six similarity indices are used, with precision and area under the ROC curve (AUC) value as the accuracy metrics. We observe a positive correlation between mean degree and accuracy, and size independence of the AUC value.

Ahn, Min-Woo

2015-01-01T23:59:59.000Z

319

Signatures of quantum criticality in the thermopower of Ba(Fe1?xCox)2As2  

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

We demonstrate that the thermopower (S) can be used to probe the spin fluctuations (SFs) in proximity to the quantum critical point (QCP) in Fe-based superconductors. The sensitivity of S to the entropy of charge carriers allows us to observe an increase of S/T in Ba(Fe1?xCox)2As2 close to the spin-density-wave (SDW) QCP. This behavior is due to the coupling of low-energy conduction electrons to two-dimensional SFs, similar to heavy-fermion systems. The low-temperature enhancement of S/T in the Co substitution range 0.02c?0.05, close to the highest superconducting Tc. This analysis indicates that low-T thermopower is influenced by critical spin fluctuations which are important for the superconducting mechanism.

Arsenijevi?, S.; Hodovanets, H.; Gal, R.; Forr, L.; Bud'ko, S. L.; Canfield, P. C.

2013-06-01T23:59:59.000Z

320

Heterojunction band offsets and dipole formation at BaTiO{sub 3}/SrTiO{sub 3} interfaces  

SciTech Connect (OSTI)

We used a complement of photoemission and cathodoluminescence techniques to measure formation of the BaTiO{sub 3} (BTO) on SrTiO{sub 3} (STO) heterojunction band offset grown monolayer by monolayer by molecular beam epitaxy. X-ray photoemission spectroscopy (XPS) provided core level and valence band edge energies to monitor the valence band offset in-situ as the first few crystalline BTO monolayers formed on the STO substrate. Ultraviolet photoemission spectroscopy (UPS) measured Fermi level positions within the band gap, work functions, and ionization potentials of the growing BTO film. Depth-resolved cathodoluminescence spectroscopy measured energies and densities of interface states at the buried heterojunction. Kraut-based XPS heterojunction band offsets provided evidence for STO/BTO heterojunction linearity, i.e., commutativity and transitivity. In contrast, UPS and XPS revealed a large dipole associated either with local charge transfer or strain-induced polarization within the BTO epilayer.

Balaz, Snjezana [Department of Physics and Astronomy, Youngstown State University, One University Plaza, Youngstown, Ohio 44555 (United States)] [Department of Physics and Astronomy, Youngstown State University, One University Plaza, Youngstown, Ohio 44555 (United States); Zeng, Zhaoquan [Department of Electrical and Computer Engineering, The Ohio State University, 205 Dreese Lab, 2015 Neil Ave., Columbus, Ohio 43210 (United States)] [Department of Electrical and Computer Engineering, The Ohio State University, 205 Dreese Lab, 2015 Neil Ave., Columbus, Ohio 43210 (United States); Brillson, Leonard J. [Department of Electrical and Computer Engineering, The Ohio State University, 205 Dreese Lab, 2015 Neil Ave., Columbus, Ohio 43210 (United States) [Department of Electrical and Computer Engineering, The Ohio State University, 205 Dreese Lab, 2015 Neil Ave., Columbus, Ohio 43210 (United States); Department of Physics, The Ohio State University, 191 West Woodruff, Columbus, Ohio 43210 (United States)

2013-11-14T23:59:59.000Z

Note: This page contains sample records for the topic "ba sin gr" 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

Data:39750348-a887-4ff8-8623-933ba8bd0ae6 | 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 No934aed79f5d No33f8-933ba8bd0ae6 No

322

The crystal structure and magnetic properties of Ba{sub 2?x}Sr{sub x}Co{sub 2}Fe{sub 12}O{sub 22}  

SciTech Connect (OSTI)

We have synthesized the Ba{sub 2?x}Sr{sub x}Co{sub 2}Fe{sub 12}O{sub 22} samples (x?=?0.1, 0.2, 0.3, 0.4, 0.5) by the solid-state reaction method and investigated their crystalline and magnetic properties by X-ray diffractometer (XRD), Mssbauer spectrometer, vibrating sample magnetometer, and network analyzer. XRD patterns show that all samples are rhombohedral with space group R-3m. The lattice constants a{sub 0} and c{sub 0} decrease with Sr substitution due to smaller ion radius of Sr{sup 2+} (1.27?) than that of Ba{sup 2+} (1.43?). The Mssbauer spectroscopy measurements show that the relative area ratios of Fe ion were maintained constant regardless of the Sr concentration. However, average magnetic hyperfine field slightly increased with the Sr concentration. This observation agrees with the fact that the saturation magnetization (M{sub s}) linearly increases due to the increasing super-exchange interaction, originated from the difference in the ionic radius between Ba{sup 2+} and Sr{sup 2+}. To investigate its properties at high frequency range, all samples were sintered at 1100?C, and complex permeability and permittivity were measured by network analyzer between 100?MHz and 4?GHz. For x below 0.3, the initial permeability at 100?MHz increases, at higher values of x, its value decreases. Our study shows that magnetic properties of Sr{sup 2+} substitution for Ba{sup 2+} in Y-type hexaferrite as well as low magnetic loss less than 0.1 in 1?GHz band, indicating the potential application of Ba{sub 2?x}Sr{sub x}Co{sub 2}Fe{sub 12}O{sub 22} samples for RF and antenna devices in ultra high frequency band.

Cho, Kwang Lae; Rhee, Chan Hyuk; Kim, Chul Sung, E-mail: cskim@kookmin.ac.kr [Department of Physics, Kookmin University, Seoul 136-702 (Korea, Republic of)

2014-05-07T23:59:59.000Z

323

COMPUTATIONAL MODELING, SYNTHESIS, AND CHARACTERIZATION OF BaZr1-xYxO3-8 SOLID STATE PROTON CONDUCTOR  

SciTech Connect (OSTI)

During the second semiannual period we have carried out a series of QM calculations on the BaZr{sub 1-x}Y{sub x}H{sub x}O{sub 3} proton conductor to determine the equilibrium proton positions and corresponding energies. We find that the size of the crystal cell is very important for the identification of the equilibrium proton positions. To derive ReaxFF parameters for Pt-surfaces and for H-transfer in Y-doped BaZrO{sub 3}, we carried out QM-calculations on the structures and energies of relevant condensed phases and cluster systems. These data then served as a training set to optimize the ReaxFF parameters. ReaxFF for various bulk metals (Pt, Zr, and Y) and metal clusters (Pt) was developed. BaZr{sub 1-x}Y{sub x}O{sub 3-{delta}} with x = 0.2, 0.3, 0.4, 0.5 was synthesized using a modified Pechini method and characterization (X-ray diffraction, scanning electron microscopy, and impedance spectroscopy) of this material was performed. We find that a single perovskite phase is formed in BaZr{sub 1-x}Y{sub x}O{sub 3-{delta}}. The proton conductivity of BaZr{sub 1-x}Y{sub x}O{sub 3-{delta}} with x = 0.5 is significantly lower than the conductivity of the samples with Y-dopant concentrations of 0.1 and 0.2.

Boris Merinov; Claudio O. Dorso; William A. Goddard III; Jian Wu; Sossina Haile

2003-10-30T23:59:59.000Z

324

Effects of A-site composition and oxygen nonstoichiometry on the thermodynamic stability of compounds in the BaSrCoFeO system  

SciTech Connect (OSTI)

The thermodynamic stability of the perovskite-type oxides in the Ba{sub x}Sr{sub 1?x}Co{sub 0.8}Fe{sub 0.2}O{sub 3??} (BSCF) system was investigated with varying Ba:Sr ratios (x=0.2, 0.4, 0.5, 0.6, 0.8) and correlated with the charge compensation mechanism and the change in the oxygen stoichiometry of the materials. Thermodynamic properties represented by the relative partial molar free energies, enthalpies and entropies of oxygen dissolution in the perovskite phase, as well as the equilibrium partial pressures of oxygen have been obtained in the temperature range of 8231273 K using solid electrolyte electrochemical cells (EMF) method. The influence of the oxygen stoichiometry change on the thermodynamic properties was examined using a coulometric titration technique coupled with EMF measurements. The temperature dependence of enthalpy increment (H{sub T}?H{sub 298}) in the temperature range of 700900 K was measured by drop calorimetry. The energetic parameters allow for the correlation of the structural and electrical stability with the defect structures. - Graphical abstract: Partial molar energy of oxygen dissolution (?G{sup }{sub O{sub 2}}) (EMF measurements) and enthalpy increment (H{sub T}?H{sub 298}) (drop calorimetry data) of perovskite materials with the composition Ba{sub x}Sr{sub 1?x}Co{sub 0.8}Fe{sub 0.2}O{sub 3??} as a function of temperature and Barium content. Highlights: ? We report relevant data for thermodynamic stability of Ba{sub x}Sr{sub 1?x}Co{sub 1?y}Fe{sub y}O{sub 3??} compounds. ? Temperature of structural transformations is evidenced as a function of Ba content. ? Correlation between thermodynamic, electrical and structural data is investigated. ? The results are discussed based on the properties-defect structure relationship.

Tanasescu, Speranta, E-mail: stanasescu2004@yahoo.com [Ilie Murgulescu Institute of Physical Chemistry of Romanian Academy, Department of Chemical Thermodynamics, Splaiul Independentei 202, PO Box 12-194, 060021 Bucharest (Romania); Yng, Zhn, E-mail: zhen.yang@mat.ethz.ch [ETH Zurich, Nonmetallic Inorganic Materials, Department of Materials, Wolfgang-Pauli-Str. 10, CH-8093 Zurich (Switzerland); Martynczuk, Julia, E-mail: julia.martynczuk@mat.ethz.ch [ETH Zurich, Nonmetallic Inorganic Materials, Department of Materials, Wolfgang-Pauli-Str. 10, CH-8093 Zurich (Switzerland); Varazashvili, Vera, E-mail: v_varazi@yahoo.com [Ivan Javakhishvili Tbilisi State University, 11, Mindeli str., Tbilisi, 380086, Georgia (United States); Maxim, Florentina, E-mail: maxim_florentina@yahoo.com [Ilie Murgulescu Institute of Physical Chemistry of Romanian Academy, Department of Chemical Thermodynamics, Splaiul Independentei 202, PO Box 12-194, 060021 Bucharest (Romania); Teodorescu, Florina, E-mail: fteodorescu@icf.ro [Ilie Murgulescu Institute of Physical Chemistry of Romanian Academy, Department of Chemical Thermodynamics, Splaiul Independentei 202, PO Box 12-194, 060021 Bucharest (Romania); Botea, Alina, E-mail: alina.petcu30@yahoo.com [Ilie Murgulescu Institute of Physical Chemistry of Romanian Academy, Department of Chemical Thermodynamics, Splaiul Independentei 202, PO Box 12-194, 060021 Bucharest (Romania); Totir, Nicolae, E-mail: nicolaetotir@yahoo.com [Ilie Murgulescu Institute of Physical Chemistry of Romanian Academy, Department of Chemical Thermodynamics, Splaiul Independentei 202, PO Box 12-194, 060021 Bucharest (Romania); and others

2013-04-15T23:59:59.000Z

325

Novel chemically stable Ba3Ca1.18Nb1.82-xYxO9- proton conductor: improved proton conductivity through tailored cation ordering  

SciTech Connect (OSTI)

Simple perovskite-structured proton conductors encounter significant challenges to simultaneously achieving excellent chemical stability and proton conductivity that are desirable for many important applications in energy conversion and storage. This work demonstrates that Y-doped complex-perovskite-structured Ba3Ca1.18Nb1.82 xYxO9 materials possess both improved proton conductivity and exceptional chemical stability. Neutron powder diffraction refinement revealed a Fm3 m perovskite-structure and increased oxygen vacancy concentration due to the Y doping. High-resolution TEM analysis confirmed the perturbation of the B site cation ordering in the structure for the Ba3Ca1.18Nb1.82 xYxO9 materials. Such combined effects led to improved proton conductivity with a value of 5.3 10 3 S cm 1 at 600 C for Ba3Ca1.18Nb1.52Y0.3O9 (BCNY0.3), a value 2.4 times higher compared with that of the undoped Ba3Ca1.18Nb1.82O9 . The Ba3Ca1.18Nb1.82 xYxO9 materials showed remarkable chemical stability toward water and demonstrated no observable reactions to CO2 exposure. Ionic transport number studies showed that BCNY0.3 had predominantly proton conduction below 600 C. Solid oxide fuel cells using BCNY0.3 as an electrolyte demonstrated cell power output of 103 mW cm 2 at 750 C. These results suggest that a doping strategy that tailors the cation ordering in complex perovskites provides a new direction in the search for novel proton conducting ceramics.

Wang, Siwei [University of South Carolina, Columbia] [University of South Carolina, Columbia; Chen, Yan [ORNL] [ORNL; Fang, Shumin [University of South Carolina, Columbia] [University of South Carolina, Columbia; Zhang, Lingling [University of South Carolina, Columbia] [University of South Carolina, Columbia; Tang, Ming [Los Alamos National Laboratory (LANL)] [Los Alamos National Laboratory (LANL); An, Ke [ORNL] [ORNL; Brinkman, Dr. Kyle S. [Savannah River National Laboratory (SRNL), Aiken, S.C.] [Savannah River National Laboratory (SRNL), Aiken, S.C.; Chen, Fanglin [University of South Carolina, Columbia] [University of South Carolina, Columbia

2014-01-01T23:59:59.000Z

326

Synthesis and morphology of Ba{sub 1-x}RE{sub 2x/3}Nb{sub 2}O{sub 6} nanocrystals with tungsten bronze structure in RE{sub 2}O{sub 3}-BaO-Nb{sub 2}O{sub 5}-B{sub 2}O{sub 3} glasses (RE: Sm, Eu, Gd, Dy, Er)  

SciTech Connect (OSTI)

Ba{sub 1-x}RE{sub 2x/3}Nb{sub 2}O{sub 6} nanocrystals with a tetragonal tungsten bronze (TTB) structure are synthesized using a conventional glass crystallization technique in 2.3RE{sub 2}O{sub 3}-27.4BaO-34.3Nb{sub 2}O{sub 5}-36B{sub 2}O{sub 3} (mol%) (RE=Sm, Eu, Gd, Dy, and Er) glasses. One sharp crystallization peak is observed at {approx}670 Degree-Sign C in both powdered and bulk glasses, and the formation of Ba{sub 1-x}RE{sub 2x/3}Nb{sub 2}O{sub 6} nanocrystals with unit cell parameters of a{approx}1.24 nm and c{approx}0.39 nm was confirmed. It is found from high resolution transmission electron microscope observations that the morphology of Ba{sub 1-x}RE{sub 2x/3}Nb{sub 2}O{sub 6} nanocrystals is ellipsoidal. Their average particle size is in the range of 15-60 nm and decreases with decreasing ionic radius of RE{sup 3+} being present in the precursor glasses. The optical transparent crystallized glass (bulk) shows the total photoluminescence (PL) quantum yield of 53% in the visible region of Eu{sup 3+} ions, suggesting a high potential of Ba{sub 1-x}RE{sub 2x/3}Nb{sub 2}O{sub 6} nanocrystals as PL materials. - Graphical abstract: This figure shows a TEM photograph for the heat-treated (667 Degree-Sign C, 3 h) sample of 2.3Dy{sub 2}O{sub 3}-27.4BaO-34.3Nb{sub 2}O{sub 5}-36B{sub 2}O{sub 3}. An ellipsoidal-shaped Ba{sub 1-x}Dy{sub 2x/3}Nb{sub 2}O{sub 6} nanocrystal with diameters of 17 and 28 nm is observed. The ellipsoidal morphology is a common feature in Ba{sub 1-x}RE{sub 2x/3}Nb{sub 2}O{sub 6} nanocrystals synthesized by the crystallization of 2.3RE{sub 2}O{sub 3}-27.4BaO-34.3Nb{sub 2}O{sub 5}-36B{sub 2}O{sub 3} glasses. Highlights: Black-Right-Pointing-Pointer Ba{sub 1-x}RE{sub 2x/3}Nb{sub 2}O{sub 6} nanocrystals with a tetragonal tungsten bronze structure are synthesized. Black-Right-Pointing-Pointer A glass crystallization technique was applied. Black-Right-Pointing-Pointer The morphology of Ba{sub 1-x}RE{sub 2x/3}Nb{sub 2}O{sub 6} nanocrystals is ellipsoidal. Black-Right-Pointing-Pointer The average particle size with 15-60 nm decreases with decreasing ionic radius of RE{sup 3+}. Black-Right-Pointing-Pointer Ba{sub 1-x}RE{sub 2x/3}Nb{sub 2}O{sub 6} nanocrystals have a high potential as photoluminescence materials.

Ida, H.; Shinozaki, K.; Honma, T.; Oh-ishi, K. [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan)] [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan); Komatsu, T., E-mail: komatsu@mst.nagaokaut.ac.jp [Department of Materials Science and Technology, Nagaoka University of Technology, 1603-1 Kamitomioka-cho, Nagaoka 940-2188 (Japan)

2012-12-15T23:59:59.000Z

327

Universal superconducting and magnetic properties of the (CaxLa12x)(Ba1.752xLa0.25x)Cu3Oy system: a mSR investigation  

E-Print Network [OSTI]

Universal superconducting and magnetic properties of the (CaxLa12x)(Ba1.752xLa0.25þx)Cu3Oy system 2002; accepted 30 September 2002 by Y.J. Uemura Abstract The (CaxLa12x)(Ba1.752xLa0.25þx) Cu3Oy system or detrimental to superconductivity? We address these questions by investigating the (Cax La12x)(Ba1.752xLa0.25þx

Keren, Amit

328

Anisotropic and quasi-propagating spin excitations in optimally-doped superconducting Ba(Fe0.926Co0.074)2As2  

SciTech Connect (OSTI)

Inelastic neutron scattering from superconducting (SC) Ba(Fe0:926Co0:074)2As2 reveals anisotropic and quasi-two-dimensional (2D) magnetic excitations close to QAFM = ( 1/2 1/2 ) - the 2D antiferromagnetic wavevector of the parent BaFe2As2 compound. The correlation length anisotropy of these low energy fluctuations is consistent with spin nematic correlations in the J1-J2 model with J1=J2 1.The magnetic resonance at 8.30.1 meV in the SC state displays the same anisotropy. Above 50 meV, the anisotropic fluctuations evolve into two distinct maxima transverse to QAFM indicatingnovel quasi-propagating excitations.

Li, Haifeng [Iowa State University; Broholm, C. [Johns Hopkins University; Vaknin, D. [Ames Laboratory; Abernathy, Douglas L [ORNL; Pratt, Daniel K [ORNL; Tian, W. [University of Tennessee, Knoxville (UTK); Fernandes, R M. [Iowa State University; Qiu, Y. [National Institute of Standards and Technology (NIST); Ni, N [Ames Laboratory and Iowa State University; Stone, Matthew B [ORNL; Diallo, S. O. [Ames Laboratory; de la Cruz, Clarina [University of Tennessee, Knoxville (UTK) & Oak Ridge National Laboratory (ORNL); Zarestky, J. L. [Ames Laboratory and Iowa State University; Budko, S L [Ames Laboratory and Iowa State University; Canfield, P. C. [Ames Laboratory; McQueeney, R. J. [Ames Laboratory

2010-01-01T23:59:59.000Z

329

Fine Structure of Optical Energy Levels Scheme for Ni{sup 2+} Doped in Inverted Perovskite BaLiF{sub 3}  

SciTech Connect (OSTI)

The aim of this paper is to calculate the fine structure of the optical energy levels scheme of BaLiF{sub 3}:Ni{sup 2+} taken into account besides the spin-orbit interaction, also the spin-spin, orbit-orbit and spin-other-orbit interactions. The numerical theoretical crystal field parameters were computed using the model exchange charge calculations of crystal field, taking into account the effects of the covalent bond formation between the Ni{sup 2+} and F{sup -} ions. The Hamiltonian of the BaLiF{sub 3}:Ni{sup 2+} system has been diagonalized in a complete basis set spanned by all wave functions of the 3d{sup 8} electron configuration. The comparison of the calculated energy levels with experimental data gives a satisfactory agreement, which confirms the model and used method.

Andreici, Emiliana-Laura [Department of Physics, West University of Timisoara, Bd. V. Parvan No. 4, 300223, Timisoara (Romania); Avram, N. M. [Department of Physics, West University of Timisoara, Bd. V. Parvan No. 4, 300223, Timisoara (Romania); Academy of Romanian Scientists, Independentei 54, 050094-Bucharest (Romania)

2011-10-03T23:59:59.000Z

330

Abnormal thermal conductivity in tetragonal tungsten bronze Ba{sub 6?x}Sr{sub x}Nb{sub 10}O{sub 30}  

SciTech Connect (OSTI)

Ba{sub 6?x}Sr{sub x}Nb{sub 10}O{sub 30} solid solution with 0???x???6 crystallizes in centrosymmetric tetragonal tungsten bronze structure (space group P4/mbm). We report on the x dependence of thermal conductivity of polycrystalline samples measured in the 2400?K temperature interval. Substitution of Sr for Ba brings about a significant decrease in thermal conductivity at x???3 accompanied by development of a low-temperature (T???1030?K) plateau region reminiscent of a glass-like compounds. We explain this behaviour based on a size-driven site occupancy and atomic displacement parameters associated with an alkaline earth atomic positions in the title compounds.

Kolodiazhnyi, T., E-mail: kolodiazhnyi.taras@nims.go.jp; Sakurai, H.; Vasylkiv, O.; Borodianska, H. [National Institute for Materials Science, Tsukuba, Ibaraki 305-0044 (Japan); Mozharivskyj, Y. [Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, Ontario L8S4M1 (Canada)

2014-03-17T23:59:59.000Z

331

Infrared Measurement of the Pseudogap of P-Doped and Co-Doped High-Temperature BaFe2As2 Superconductors  

SciTech Connect (OSTI)

We report on infrared studies of charge dynamics in a prototypical pnictide system: the BaFe2As2 family. Our experiments have identified hallmarks of the pseudogap state in the BaFe2As2 system that mirror the spectroscopic manifestations of the pseudogap in the cuprates. The magnitude of the infrared pseudogap is in accord with that of the spin-density-wave gap of the parent compound. By monitoring the superconducting gap of both P- and Co-doped compounds, we find that the infrared pseudogap is unrelated to superconductivity. The appearance of the pseudogap is found to correlate with the evolution of the antiferromagnetic fluctuations associated with the spin-density-wave instability. The strong-coupling analysis of infrared data further reveals the interdependence between the magnetism and the pseudogap in the iron pnictides.

Moon, S.J.; Schafgans, A.A.; Kasahara, S.; Shibauchi, T.; Terashima, T.; Matsuda, Y.; Tanatar, Makariy A.; Prozorov, Ruslan; Thaler, Alexander; Canfield, Paul C.; Sefat, A.S.; Mandrus, D.; Basov, D.N.

2012-07-13T23:59:59.000Z

332

Syntheses and characterization of energetic compounds constructed from alkaline earth metal cations (Sr and Ba) and 1,2-bis(tetrazol-5-yl)ethane  

SciTech Connect (OSTI)

Two new energetic compounds, [M(BTE)(H{sub 2}O){sub 5}]{sub n} (M=Sr(1), Ba(2)) [H{sub 2}BTE=1,2-bis(tetrazol-5-yl)ethane], have been hydrothermally synthesized and structurally characterized. Single-crystal X-ray diffraction analyses reveal that they are isomorphous and exhibit 2D (4,4) net framework, generated by 4-connected Sr{sub 2}(H{sub 2}O){sub 10}/Ba{sub 2}(H{sub 2}O){sub 10} SBUs linked up by two independent binding modes of H{sub 2}BTE, and the resulting 2D structure is interconnected by hydrogen-bond and strong face to face {pi}-{pi} stacking interactions between two tetrazole rings to lead to a 3D supramolecular architecture. DSC measurements show that they have significant catalytic effects on thermal decomposition of ammonium perchlorate. Moreover, the photoluminescence properties, thermogravimetric analyses, and flame colors of the as-prepared compounds are also investigated in this paper. - Graphical abstract: Two novel 2D isomorphous alkaline earth metal complexes were assembled by 4-connected Sr{sub 2}(H{sub 2}O){sub 10}/Ba{sub 2}(H{sub 2}O){sub 10} SBUs and two independent binding modes of H{sub 2}BTE ligands, and the catalytic performances toward thermal decomposition of ammonium perchlorate and photoluminescent properties of them were investigated. Highlights: > Two novel alkaline earth energetic coordination polymers have been prepared.{yields} Both structures are layered based on 4-connected Sr{sub 2}(H{sub 2}O){sub 10}/Ba{sub 2}(H{sub 2}O){sub 10} SBUs and two distinct H{sub 2}BTE coordination modes.{yields} The dehydrated products of the compounds possess good thermostability and significant catalytic effects on thermal decomposition of AP.

Xia Zhengqiang [Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi 710069 (China); Chen Sanping, E-mail: sanpingchen@126.com [Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi 710069 (China); Wei Qing, E-mail: weiqq@126.com [Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi 710069 (China); Qiao Chengfang [Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry and Materials Science, Northwest University, Xi'an, Shaanxi 710069 (China)

2011-07-15T23:59:59.000Z

333

PUGLIA BARI ALTAMURA FIORENZO SARA BA 70022 VIA LAV1GNA. 2 0803212459 Dal lune& al Venerdl dalle ore 09.00 alle ore 13 DO e dalle  

E-Print Network [OSTI]

ore 09.00 alle ore 13 DO e dalle ore 16:00 alle ore 20 00. Sabato dalle 09:00 alle 1310 PUGLIA BARI Venerd dalle ore 09:00 alle ore 13:00 e dalle ore I6:00 alle ore 19:00 PUGLIA BARI GIOVINAllO ILLUZZI MARIA LUCIA BA 70054 VIA TRIESTE, 7 0803946280 0803946280 Dal lancia al Venerd dalle ore 10 OD alle ore

Malerba, Donato

334

Structural and thermoelectric properties of BaRCo{sub 4}O{sub 7} (R = Dy, Ho, Er, Tm, Yb, and Lu)  

SciTech Connect (OSTI)

The structure and thermoelectric properties of a series of barium lanthanide cobaltites, BaRCo{sub 4}O{sub 7} (R = Dy, Ho, Er, Tm, Yb, and Lu), which were prepared using the spark plasma synthesis technique, have been investigated. The space group of these compounds was re-determined and confirmed to be P31c instead of the reported P6{sub 3}mc. The lattice parameters a and c range from 6.26279(2) Angst to 6.31181(6) Angst , and from 10.22468(6) Angst to 10.24446(15) Angst for R = Lu to Dy, respectively. The crystal structure of BaRCo{sub 4}O{sub 7} is built up from Kagome sheets of CoO{sub 4} tetrahedra, linked by triangular layers of CoO{sub 4} tetrahedra. The values of figure of merit (ZT) of the BaRCo{sub 4}O{sub 7} samples were determined to be around 0.02 at 800 K. X-ray diffraction patterns of these samples have been determined and submitted to the Powder Diffraction File.

Wong-Ng, W.; Yan, Y.; Liu, G. [Ceramics Division, NIST, Gaithersburg, Maryland 20899 (United States); Xie, W.; Tritt, T. [Department of Physics, Clemson University, Greensville, South Carolina 29634 (United States); Kaduk, J. [Illinois Institute of Technology, Chicago, Illinois 60616 (United States); Thomas, E. [Air Force Research Laboratory, Wright Pattersen, Ohio 45433 (United States)

2011-12-01T23:59:59.000Z

335

Measurement of the B0 ---> Psi (2S) Lambda0 Branching Fraction on BaBar at the Stanford Linear Accelerator Center (Abstract Only)  

SciTech Connect (OSTI)

The decays of B{sup 0} mesons to hadronic final states remains a rich area of physics on BaBar. Not only do the c{bar c}-K final states (e.g. B{sup 0} {yields} {psi}(2S)K{sup 0}) allow for the measurement of CP Violation, but the branching fractions provide a sensitive test of the theoretical methods used to account for low energy non-perturbative QCD effects. They present the measurement of the branching fraction for the decay B{sup 0} {yields} {psi}(2S)K{sub s}. The data set consists of 88.8 {+-} 1.0 x 10{sup 6} B{bar b} pairs collected on the e{sup +}e{sup -} {yields} {Upsilon}(4S) resonance on BaBar/PEP-II at the Stanford Linear Accelerator Center (SLAC). This analysis features a modification of present cuts, with respect to those published so far on BaBar, on the K{sub S} {yields} {pi}{sup +}{pi}{sup -} and {psi}(2S) {yields} J/{psi}{pi}{sup +}{pi}{sup -} which aim at reducing the background while keeping the signal intact. Various data selection criteria are studied for the lepton modes (e{sup +}e{sup -} and {mu}{sup +}{mu}{sup -}) of the J/{psi} and {psi}(2S) to improve signal purity as well as study the stability of the resultant branching fractions.

Olivas, Alexander Raymond, Jr.; /Colorado U.

2005-11-16T23:59:59.000Z

336

Magnetisation studies of phase co-existence in Gd{sub 1-x}Ca{sub x}BaCo{sub 2}O{sub 5.5}  

SciTech Connect (OSTI)

Highlights: Black-Right-Pointing-Pointer The series Gd{sub 1-x}Ca{sub x}BaCo{sub 2}O{sub 5.5} was synthesised by solid state reaction. Black-Right-Pointing-Pointer Magnetisation studies were carried out in the 4-300 K temperature range in magnetic fields upto 16 Tesla. Black-Right-Pointing-Pointer Results were used to formulate the T versus Ca fraction, phase diagram. Black-Right-Pointing-Pointer Evidence for Magnet-electronic phase separation is shown for the first time in the compound. -- Abstract: Magnetic properties of hole doped, oxygen deficient double perovskite compounds, Gd{sub 1-x}Ca{sub x}BaCo{sub 2}O{sub 5.5}, have been investigated. Ferromagnetic transition temperatures increase and the anti-ferromagnetic transition temperatures decrease with Ca substitution leading to stabilisation of ferromagnetisim for x {>=} 0.05. A detailed study of the ferromagnetic phase indicates the presence of double hysterisis loops for Ca fractions, 0.05 {<=} x {<=} 0.2 in the 50-200 K temperature range, suggestive of the co-existence of two ferromagnetic phases with different co-ercivities. Based on the magnetisation and transport measurements a phase diagram is proposed for Ca doped GdBaCo{sub 2}O{sub 5.5}.

Thirumurugan, N. [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam (India)] [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam (India); Bharathi, A., E-mail: bharathi@igcar.gov.in [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam (India); Arulraj, A.; Sundar, C.S. [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam (India)] [Condensed Matter Physics Division, Indira Gandhi Centre for Atomic Research, Kalpakkam (India)

2012-04-15T23:59:59.000Z

337

Magnetic excitations in underdoped Ba(Fe1-xCox)2As2 with x=0.047  

SciTech Connect (OSTI)

The magnetic excitations in the paramagnetic-tetragonal phase of underdoped Ba(Fe0.953Co0.047)2As2, as measured by inelastic neutron scattering, can be well described by a phenomenological model with purely diffusive spin dynamics. At low energies, the spectrum around the magnetic ordering vector QAFM consists of a single peak with elliptical shape in momentum space. At high energies, this inelastic peak is split into two peaks across the direction perpendicular to QAFM. We use our fittings to argue that such a splitting is not due to incommensurability or propagating spin-wave excitations, but is rather a consequence of the anisotropies in the Landau damping and in the magnetic correlation length, both of which are allowed by the tetragonal symmetry of the system. We also measure the magnetic spectrum deep inside the magnetically ordered phase, and find that it is remarkably similar to the spectrum of the paramagnetic phase, revealing the strongly overdamped character of the magnetic excitations.

Tucker, Gregory S.; Fernandes, R.M.; Li, Haifeng; Thampy, V.; Ni, Ni; Abernathy, D.L.; Budko, Serguei L.; Canfield, Paul C; Vaknin, David; Schmalian, J.; McQueeney, Robert J.

2012-07-06T23:59:59.000Z

338

Magnetic excitations in underdoped Ba (Fe_1-x Co_x)_2 As_2 with x =0.047  

SciTech Connect (OSTI)

The magnetic excitations in the paramagnetic-tetragonal phase of underdoped Ba(Fe0.953Co0.047)2As2, as measured by inelastic neutron scattering, can be well described by a phenomenological model with purely diusive spin dynamics. At low energies, the spec- trum around the magnetic ordering vector Q_AFM consists of a single peak with elliptical shape in momentum space. At high energies, this inelastic peak is split into two peaks across the direction perpendicular to Q_AFM. We use our fittings to argue that such a splitting is not due to incommensurability or propagating spin-wave excitations, but is rather a consequence of the anisotropies in the Landau damping and in the magnetic correlation length, both of which are allowed by the tetragonal symmetry of the system. We also measure the magnetic spectrum deep inside the magnetically-ordered phase, and find that it is remarkably similar to the spectrum of the paramagnetic phase, revealing the strongly overdamped character of the magnetic excitations.

Tucker, G. S. [Ames Laboratory and Iowa State University; Fernandes, R M. [Iowa State University; Li, Haifeng [Ames Laboratory and Iowa State University; Thampy, Vivek [Johns Hopkins University; Ni, N [Ames Laboratory and Iowa State University; Abernathy, Douglas L [ORNL; Budko, S L [Ames Laboratory and Iowa State University; Broholm, C. [Johns Hopkins University; Canfield, Paul [Ames Laboratory and Iowa State University; Vaknin, D [Ames Laboratory and Iowa State University; Schmalian, J. [Karlsruhe Institute of Technology, Karlsruhe, Germany; Mcqueeney, R J [Ames Laboratory and Iowa State University

2012-01-01T23:59:59.000Z

339

Resonant Spin Excitation in the High Temperature Superconductor Ba0.6K0.4Fe2As2  

SciTech Connect (OSTI)

A new family of superconductors containing layers of iron arsenide has attracted considerable interest because of their high transition temperatures (T{sub c}), some of which are >50 K, and because of similarities with the high-{sub c} copper oxide superconductors. In both the iron arsenides and the copper oxides, superconductivity arises when an antiferromagnetically ordered phase has been suppressed by chemical doping. A universal feature of the copper oxide superconductors is the existence of a resonant magnetic excitation, localized in both energy and wavevector, within the superconducting phase. This resonance, which has also been observed in several heavy-fermion superconductors is predicted to occur when the sign of the superconducting energy gap takes opposite values on different parts of the Fermi surface, an unusual gap symmetry which implies that the electron pairing interaction is repulsive at short range. Angle-resolved photoelectron spectroscopy shows no evidence of gap anisotropy in the iron arsenides, but such measurements are insensitive to the phase of the gap on separate parts of the Fermi surface. Here we report inelastic neutron scattering observations of a magnetic resonance below T{sub c} in Ba{sub 0.6}K{sub 0.4}Fe{sub 2}As{sub 2}, a phase-sensitive measurement demonstrating that the superconducting energy gap has unconventional symmetry in the iron arsenide superconductors.

Christianson, Andrew D [ORNL; Goremychkin, E. A. [ISIS Facility, Rutherford Appleton Laboratory; Osborn, R. [Argonne National Laboratory (ANL); Rosenkranz, Stephen [Argonne National Laboratory (ANL); Lumsden, Mark D [ORNL; Malliakas, C. [Northwestern University, Evanston; Todorov, L. [Northwestern University, Evanston; Claus, H. [Northwestern University, Evanston; Chung, D.Y. [Northwestern University, Evanston; Kanatzidis, M. [Northwestern University, Evanston; Bewley, Robert I. [ISIS Facility, Rutherford Appleton Laboratory; Guidi, T. [ISIS Facility, Rutherford Appleton Laboratory

2008-01-01T23:59:59.000Z

340

Multiferroicity and magneto-electric effect in Gd{sub 2}BaNiO{sub 5}  

SciTech Connect (OSTI)

We report the observation of electric polarization in the magnetically ordered state of the Haldane chain compound, Gd{sub 2}BaNiO{sub 5}, with strongly correlated magnetic and dielectric properties. The results of dc magnetic susceptibility and heat capacity measurements indicate two magnetic transitions, one corresponding to the anti-ferromagnetic order at T{sub N}???55?K and the other to spin-reorientation transition at T{sub SR}???24?K. The dielectric permittivity (?{sub r}{sup ?}) and loss (tan?) also exhibit anomalies in the vicinity of T{sub SR} and T{sub N}, respectively. Below the spin-reorientation transition, concurrently magnetic-field-induced spin-flop and the meta-electric transitions are observed at a critical magnetic field in isothermal magnetization and magneto-dielectric results, respectively. Another interesting finding is that ??{sub r}{sup ?} (=(?{sub r}{sup ?}(H)??{sub r}{sup ?}(0))/?{sub r}{sup ?}(0)) changes its sign at the critical magnetic field. The origin of the observed magneto-electric effect is discussed on the basis of spinphonon coupling.

Chowki, S.; Mohapatra, N., E-mail: niharika@iitbbs.ac.in [Indian Institute of Technology Bhubaneswar, Bhubaneswar, Odisha 751013 (India); Basu, Tathamay; Singh, K.; Sampathkumaran, E. V. [Tata Institute of Fundamental Research, Homi Bhabha Road, Colaba, Mumbai 400005 (India)

2014-06-07T23:59:59.000Z

Note: This page contains sample records for the topic "ba sin gr" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
they are not comprehensive nor are they the most current set.
We encourage you to perform a real-time search of NLEBeta
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341

Demonstrating the Model Nature of the High-Temperature Superconductor HgBa2CuO4+d  

SciTech Connect (OSTI)

The compound HgBa{sub 2}CuO{sub 4+{delta}} (Hg1201) exhibits a simple tetragonal crystal structure and the highest superconducting transition temperature (T{sub c}) among all single Cu-O layer cuprates, with T{sub c} = 97 K (onset) at optimal doping. Due to a lack of sizable single crystals, experimental work on this very attractive system has been significantly limited. Thanks to a recent breakthrough in crystal growth, such crystals have now become available. Here, we demonstrate that it is possible to identify suitable heat treatment conditions to systematically and uniformly tune the hole concentration of Hg1201 crystals over a wide range, from very underdoped (T{sub c} = 47 K, hole concentration p {approx} 0.08) to overdoped (T{sub c} = 64 K, p {approx} 0.22). We then present quantitative magnetic susceptibility and DC charge transport results that reveal the very high-quality nature of the studied crystals. Using XPS on cleaved samples, we furthermore demonstrate that it is possible to obtain large surfaces of good quality. These characterization measurements demonstrate that Hg1201 should be viewed as a model high-temperature superconductor, and they provide the foundation for extensive future experimental work.

Barisic, Neven; Li, Yuan; Zhao, Xudong; Cho, Yong-Chan; Chabot-Couture, Guillaume; Yu, Guichuan; Greven, Martin; /SLAC, SSRL /Boskovic Inst., Zagreb /Stanford U., Phys. Dept. /Jilin U. /Stanford U., Appl. Phys. Dept.

2008-09-30T23:59:59.000Z

342

NdBaFe{sub 2}O{sub 5+w} and steric effect of Nd on valence mixing and ordering of Fe  

SciTech Connect (OSTI)

NdBaFe{sub 2}O{sub 5} above and below Verwey transition is studied by synchrotron X-ray powder diffraction and Moessbauer spectroscopy and compared with GdBaFe{sub 2}O{sub 5} that adopts a higher-symmetry charge-ordered structure typical of the Sm-Ho variants of the title phase. Differences are investigated by Moessbauer spectroscopy accounting for iron valence states at their local magnetic and ionic environments. In the charge-ordered state, the orientation of the electric-field gradient (EFG) versus the internal magnetic field (B) agrees with experiment only when contribution from charges of the ordered d{sub xz} orbitals of Fe{sup 2+} is included, proving thus the orbital ordering. The EFG magnitude indicates that only some 60% of the orbital order occurring in the Sm-Ho variants is achieved in NdBaFe{sub 2}O{sub 5}. The consequent diminishing of the orbit contribution (of opposite sign) to the field B at the Fe{sup 2+} nucleus explains why B is larger than for the Sm-Ho variants. The decreased orbital ordering in NdBaFe{sub 2}O{sub 5} causes a corresponding decrease in charge ordering, which is achieved by decreasing both the amount of the charge-ordered iron states in the sample and their fractional valence separation as seen by the Moessbauer isomer shift. The charge ordering in NdBaFe{sub 2}O{sub 5+w} is more easily suppressed by the oxygen nonstoichiometry (w) than in the Sm-Ho variants. Also the valence mixing into Fe{sup 2.5+} is destabilized by the large size of Nd. The orientation of the EFG around this valence-mixed iron can only be accounted for when the valence-mixing electron is included in the electrostatic ligand field. This proves that the valence mixing occurs between the two iron atoms facing each other across the structural plane of the rare-earth atoms. -- Graphical Abstract: Moessbauer spectrum detects ordering of d{sub xz} orbitals of Fe{sup II}O{sub 5} via the electric-field gradient (EFG) of the orbital, which makes the main component of the total EFG parallel with the magnetic moment B. Display Omitted

Linden, J. [Department of Physics, AAbo Akademi, FI-20500 Turku (Finland); Karen, P., E-mail: pavel.karen@kjemi.uio.n [Department of Chemistry, University of Oslo, P.O.Box 1033, Blindern, N-0315 Oslo (Norway)

2010-11-15T23:59:59.000Z

343

Method of forming a dielectric thin film having low loss composition of Ba.sub.x Sr.sub.y Ca.sub.1-x-y TiO.sub.3 : Ba.sub.0.12-0.25 Sr.sub.0.35-0.47 Ca.sub.0.32-0.53 TiO.sub.3  

DOE Patents [OSTI]

A dielectric thin-film material for microwave applications, including use as a capacitor, the thin-film comprising a composition of barium strontium calcium and titanium of perovskite type (Ba.sub.x Sr.sub.y Ca.sub.1-x-y)TiO.sub.3. Also provided is a method for making a dielectric thin film of that formula over a wide compositional range through a single deposition process.

Xiang, Xiao-Dong (Alameda, CA); Chang, Hauyee (Berkeley, CA); Takeuchi, Ichiro (Albany, CA)

2000-01-01T23:59:59.000Z

344

Nonlinear absorption and optical strength of BaF{sub 2} and Al{sub 2}O{sub 3} at the wavelength of 248 nm  

SciTech Connect (OSTI)

An experimental investigation was made of the dependence of the transmission of BaF{sub 2} and Al{sub 2}O{sub 3} samples on the intensity of KrF-laser radiation ({lambda} = 248 nm) pulses of 85 ns duration. The two-photon absorption coefficients were found at {lambda} = 248 nm and their values for these two crystals were 0.5 {+-} 0.2 and 2 {+-} 1 cm Gw{sup -1}. The surface and bulk laser breakdown thresholds were determined for these samples. (nonlinear optical phenomena)

Morozov, Nikolai V; Sergeev, P B [P.N. Lebedev Physics Institute, Russian Academy of Sciences, Moscow (Russian Federation); Reiterov, V M [All-Russian Scientific Centre 'S.I. Vavilov State Optical Institute', St Petersburg (Russian Federation)

1999-11-30T23:59:59.000Z

345

Crystal Growth And Characterization of the Model High-Temperature Superconductor HgBa{sub 2}CuO{sub 4+{delta}}  

SciTech Connect (OSTI)

Since the discovery of high-transition-temperature (T{sub c}) superconductivity in La{sub 2-x}Ba{sub x}CuO{sub 4} in 1986, the study of the lamellar copper oxides has remained at the forefront of condensed matter physics. Apart from their unusually high values of T{sub c}, these materials also exhibit a variety of complex phenomena and phases. This rich behavior is a consequence of the lamellar crystal structures, formed of copper-oxygen sheets separated by charge reservoir layers, and of the strong electron-electron correlations in the copper-oxygen sheets. After two decades of intensive research, which has stimulated many valuable new insights into correlated electron systems in general, there remains a lack of consensus regarding the correct theory for high-T{sub c} superconductivity. The ultimate technological goal of room-temperature superconductivity might only be attained after the development of a deeper understanding of the mercury-based compounds HgBa{sub 2}Ca{sub n-1}Cu{sub n}OI{sub 2n+2+{delta}}, which currently exhibit the highest T{sub c}values. One very important issue in this regard is the role of electronic versus chemical and structural inhomogeneities in these materials, and the associated need to separate material-specific properties from those that are essential to superconductivity. Unfortunately, there has been remarkably little scientific work on the mercury-based compounds because sizable crystals have not been available; quantitative measurements of any kind would be invaluable benchmarks for testing the theories of high-T{sub c} superconductivity. The compounds HgBa{sub 2}Ca{sub n-1}Cu{sub n}OI{sub 2n+2+{delta}} can be viewed as model systems not only because of their record high-T{sub c} values, but also because of their high-symmetry crystal structures. Of particular interest is the simplest member of this materials family, HgBa{sub 2}CuO{sub 4+{delta}} (Hg1201), which possesses only one copper-oxygen sheet per unit cell (n = 1), as shown schematically in Figure 1a. The largest crystals obtained by previous growth methods do not exceed 1 mm{sup 3}, and hence are insufficient in size for detailed studies by many experimental techniques. Here we report a novel recipe for the growth of Hg1201 crystals as well as detailed sample characterization results, including initial inelastic magnetic neutron scattering data. We note that samples grown by the method described here have already enabled recent optical conductivity, inelastic X-ray scattering, and angle-resolved photoemission studies.

Zhao, Xudong; Yu, Guichuan; Cho, Yong-Chan; Chabot-Couture, Guillaume; Barisic, Neven; Bourges, Philippe; Kaneko, Nobuhisa; Li, Yuan; Lu, Li; Motoyama, Eugene M.; Vajk,; Greven, Martin; /Stanford U., Appl. Phys. Dept. /SLAC, SSRL /Jilin U. /Stanford U., Phys. Dept. /Saclay /NIST, Wash., D.C.

2007-03-16T23:59:59.000Z

346

Global transverse momentum analysis for Ar+KCl and Ar+BaI/sub 2/ at 1. 2 GeV/nucleon  

SciTech Connect (OSTI)

High multiplicity collisions of 1.2 GeV/nucleon /sup 40/Ar on Kcl and on BaI/sub 2/ in the Bevalac streamer chamber are studied using the global transverse momentum analysis introduced by Danielewicz and Odyniec. For both systems, there is a sideward flow which is significantly larger than intranuclear cascade model predictions. The current results permit a study of trends in the multiplicity, mass and energy dependence of the observed flow signatures. Estimates of the stiffness of the nuclear equation of state at high density are discussed.

Beavis, D.; Chu, S.Y.; Fung, S.Y.; Gorn, W.; Keane, D.; Liu, Y.M.; VanDalen, G.; Vient, M.

1986-03-01T23:59:59.000Z

347

Structural and magnetic properties of transition metal substituted BaFe{sub 2}As{sub 2} compounds studied by x-ray and neutron scattering  

SciTech Connect (OSTI)

The purpose of my dissertation is to understand the structural and magnetic properties of the newly discovered FeAs-based superconductors and the interconnection between superconductivity, antiferromagnetism, and structure. X-ray and neutron scattering techniques are powerful tools to directly observe the structure and magnetism in this system. I used both xray and neutron scattering techniques on di#11;erent transition substituted BaFe2As2 compounds in order to investigate the substitution dependence of structural and magnetic transitions and try to understand the connections between them.

Kim, Min Gyu [Ames Laboratory

2012-08-28T23:59:59.000Z

348

Data:E90b5ba5-d41a-4a91-a075-ecb18ed828f7 | Open Energy Information  

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349

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350

Data:E92b34eb-2a10-4332-ba59-2a334603409d | Open Energy Information  

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351

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352

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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 revision has been approved for this page.b4-a4ba-cd54152b8724 No revision has been approved for this page. It is

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360

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Note: This page contains sample records for the topic "ba sin gr" from the National Library of EnergyBeta (NLEBeta).
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361

Data:6d453d3b-cf17-49c5-969d-af4df7509ba3 | Open Energy Information  

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362

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363

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364

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365

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373

Data:00ea95c5-2756-4072-9e55-7b77ba5898d4 | 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 No revision has been approved for this

374

Data:0334a518-3a1c-45b3-b007-bb191e1a83ba | 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 LLCd32fc5a84 No revision has3e2dae0d701 No revision has91e1a83ba No

375

Data:42c70da4-3eb6-44f6-be60-0d70ba829f4e | 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 Nobbe81d2e60ba829f4e No revision has

376

Data:46c2d14e-b30a-4f31-a814-a6a053684ba4 | 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 revisione18fe97c No14-a6a053684ba4 No revision has been

377

Data:46de7e97-b7d7-429b-a954-e9ffd8c5f520 | 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 revisione18fe97c No14-a6a053684ba4 No revision56cdd020a

378

Data:483d9926-39b7-4779-909d-688d7a3f80ba | 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 Nofa3d068c3333 No revision has6-f2dfd1698153 Nod7a3f80ba No

379

Data:4f90d974-092e-48e4-bb57-b845038c75ba | 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 Nobfef8fa58cf7 Noecd-9c04-2d9a8c2fc998 No revision hasdc-3343b7f732a6 No5038c75ba No

380

Data:52a240c1-3aa9-4ae7-a830-4ba870b4b62e | 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 Nobfef8fa58cf74865627f783 Noaad3-ec22188355fac30654210ad7 No revision has0-4ba870b4b62e

Note: This page contains sample records for the topic "ba sin gr" 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

Data:0a710392-0262-4cde-a5ba-d1dd41e15527 | 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-1a29da98863b No revision has beencde-a5ba-d1dd41e15527 No revision has been

382

Data:0d5a4bb9-e52f-4e19-ba91-10142fcfb74c | 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-1a29da98863bcec555c-6237-4cd1-931a-4d87b7a8618b3a1290e102a46ba91-10142fcfb74c

383

Data:0d80639f-bca3-448b-a157-6d27daa32946 | 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 been approved for this page. It is currently underbca3-448b-a157-6d27daa32946 No

384

Data:1653dff1-6261-471b-b977-65e15b892ba8 | 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 beenba5b1d371 Nob97eb4d202d0 No revision has11e2cba64d77-65e15b892ba8 No revision

385

Data:17602163-57d8-4e73-869e-d2a75b6c78ba | 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 beenba5b1d371 Nob97eb4d202d0 No8827bff3a72b1fa89b5548a75b6c78ba No revision has

386

Data:1763c9f0-da69-4218-baf3-5ba21a5bb680 | 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 beenba5b1d371 Nob97eb4d202d0 No8827bff3a72b1fa89b5548a75b6c78ba No

387

Data:1a5d4e43-b2c8-46a2-a834-f8730ba99257 | 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 hasfcd92f-8652-45c0-96f0-a73be7466ef5 No revision has978a-a73c0d514a2df8730ba99257 No

388

Data:1a888127-efbc-4c29-800e-7ba8eef7bef3 | 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 hasfcd92f-8652-45c0-96f0-a73be7466ef5 No revision5850cc4b9ba52d931d2f0

389

Data:9edb388f-04df-4e7b-a6fb-d8de558ec5ed | 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 beenfcf13f143bb Noaa-1a453d4653d0 Noedb388f-04df-4e7b-a6fb-d8de558ec5ed

390

Data:A0d8ebf5-cf22-4f20-9cd5-ba3843d2e15b | 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 hasdb5-b05c-76b1be5a4007 Nof7ffd374ee27697281 No-9cd5-ba3843d2e15b No

391

Data:A4c9381e-4783-48aa-855d-51ab1d63ba90 | 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-b209-069dd1fd7c05a97219c78401d-b420-d95a19f1b428 Nod-51ab1d63ba90 No

392

Data:Ad6728d9-f983-4258-b76c-ba854b2cbffb | 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 has been approved for this05-42be-815e-9a3479c6ccf8 No6c-ba854b2cbffb No revision has been

393

Data:Ad795ba0-52b7-47b4-a879-b2c53cc5b48c | 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 has been approved for this05-42be-815e-9a3479c6ccf8 No6c-ba854b2cbffb

394

Data:Fd9944d9-d994-42e8-8e69-c54c122baed7 | 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 No revision hasc54c122baed7 No

395

Data:Ffe2fb55-352f-473b-a2dd-50ae8b27f0a6 | Open Energy Information  

Open Energy Info (EERE)

AFDC Printable Version Share this resource Send a link to EERE: Alternative Fuels Data Center Home Page to someone by E-mail Share EERE: Alternative Fuels Data Center Home Page on Facebook Tweet about EERE: Alternative Fuels Data Center Home Page on Twitter Bookmark EERE: Alternative Fuels Data Center Home Page on Google Bookmark EERE: Alternative Fuels Data Center Home5b9fcbce19 No revision has beenFfe2fb55-352f-473b-a2dd-50ae8b27f0a6 No revision has been approved for this page. It is currently

396

Data:8b6e2a59-e512-40a8-a6bf-0166ba6ac8c0 | 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 No18fed1db5 No revision40a8-a6bf-0166ba6ac8c0 No revision has been approved for

397

Data:8ba00781-34d3-47e9-a7f1-4413aeb83aa0 | 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 No18fed1db5 No revision40a8-a6bf-0166ba6ac8c0 No3aeb83aa0 No revision has been

398

Data:8c0d642b-a303-4574-8fda-fcfb3a777af3 | 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 No18fed1db5 No revision40a8-a6bf-0166ba6ac8c0f98213a4eb9ffda-fcfb3a777af3 No

399

Data:8c0f4c96-7c4b-4501-be85-d1dc29179ba0 | 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 No18fed1db5 No revision40a8-a6bf-0166ba6ac8c0f98213a4eb9ffda-fcfb3a777af3

400

Data:8eebf9b2-29ad-49c8-8fc2-78b31b0795ba | 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 No revision has73e24484a54 No revision78b31b0795ba No

Note: This page contains sample records for the topic "ba sin gr" 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

Data:8f88e3e7-8a63-480c-bc6f-1778ba496e39 | 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 Nod57b1532a58f No revision778ba496e39 No revision has

402

Data:94561c16-5962-421a-930f-26b7cd5e9ba0 | 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 revisione0a2d50bdf35248292f1 No789501c8a3b5 No revision has been approved7-f2415e508742 Nocd5e9ba0

403

Data:9aaf2445-9bcb-47ad-ba23-674fdf0cca53 | 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 approved for this page.76f5afd9bcb-47ad-ba23-674fdf0cca53 No

404

Data:C6c66ad5-70a9-46eb-b031-543bb61ba96f | 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 revision has4dc5b1450aa31602c36f No revision hascd3a704ccb5f3b00edbd19c No3bb61ba96f

405

Data:C9587e14-d83d-4b42-a9c5-d81ba8ea0d84 | 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 revisiond81ba8ea0d84 No revision

406

Data:Cd3537d3-fd76-4fa7-9f3f-75d06fb2b0ba | 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-d4159a938742e80b26cc4 No revision5d06fb2b0ba No revision has been approved for this page. It is

407

Data:D0e41d2e-e8d0-49bf-8702-ba58cbc6fa62 | 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-01b596aa1744 No revision has been approved for this1e-67de4b817342 No revision hasfe831ab37a No revision has-ba58cbc6fa62

408

Data:D2d5e5ec-0361-4cdb-8855-0ee359ba1f27 | 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-01b596aa1744 No revision has been approved97069579d6 No revision has been approved for this page. It5-0ee359ba1f27 No

409

Data:D5c32ffa-34cd-4c52-ab6a-462ba0159723 | 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-01b596aa1744 No revision has been approved97069579d6 Nob2d2-b9d0456a138a No9855-451273353a58 No revision62ba0159723 No

410

Data:D6b2d964-50f3-426d-b425-20ba5600c415 | 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-01b596aa1744 No revision has been approved97069579d6d-b16b-9fabe37583c1 No revision88c55b57425-20ba5600c415 No revision

411

Data:D97fb563-feb6-4f10-ba64-8ae4207cfab0 | 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-01b596aa1744 No revision has beenadf9-4884-b0c1-529b3bb19f9c No revisionfeb6-4f10-ba64-8ae4207cfab0 No revision has been

412

Data:D9822de8-984f-4eba-b07b-babe69ba290e | 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-01b596aa1744 No revision has beenadf9-4884-b0c1-529b3bb19f9c No revisionfeb6-4f10-ba64-8ae4207cfab0 No revision

413

Data:D98247ab-4938-4ba2-abf6-93a7093d95fe | 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-01b596aa1744 No revision has beenadf9-4884-b0c1-529b3bb19f9c No revisionfeb6-4f10-ba64-8ae4207cfab0 No

414

Data:Dbc6802e-fe34-489f-a5bb-afa721ba13ca | 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-01b596aa1744 No revision hasDafcf4ac-ca67-414f-9d31-84001343bbebDbc6802e-fe34-489f-a5bb-afa721ba13ca No revision has been

415

Data:E00b1ed3-cca4-4bd1-890d-de895ba311ae | 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 has been approved for this page. It-4bd1-890d-de895ba311ae No revision has been

416

Data:E0db9221-efbb-49ba-a741-231da2256b06 | Open Energy Information  

Open Energy Info (EERE)

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417

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418

Data:E50ef424-c72e-40a8-9503-5ffd7e8207ba | Open Energy Information  

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419

Data:E61cf57a-69b5-4646-bc78-28743ba58708 | Open Energy Information  

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420

Data:E6eb8081-8049-4f13-94f5-0c02f758baed | Open Energy Information  

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Note: This page contains sample records for the topic "ba sin gr" 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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421

Data:E6ef5af2-eba1-4f6a-9ba2-3492960faa16 | Open Energy Information  

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422

Data:7c29e94a-6d07-490a-a81b-605b1f92ba06 | Open Energy Information  

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423

Data:7cd3764e-67ae-443e-b108-ae9430ba57f4 | Open Energy Information  

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424

Data:7ce71b0b-bdec-4512-be13-c4a7c0a1c8ba | Open Energy Information  

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425

Data:7cf58335-e48b-48f5-8f7d-8c7064c518ba | Open Energy Information  

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426

Data:7d15f9bb-291b-40fe-bb33-41a8ba12ca8e | Open Energy Information  

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427

Data:7de102d6-689b-4205-86c3-211719cb2ba9 | Open Energy Information  

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428

Data:7f621c0a-cc4a-4d3b-93cb-6d4efd6ba27f | Open Energy Information  

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429

Data:804a1eab-cb62-4327-bcaa-82f6b347ba29 | Open Energy Information  

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430

Data:81138d70-412e-48cd-aca7-46806ba48d0c | Open Energy Information  

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431

Data:336693a4-6fc2-4f79-8922-2ba205f94c09 | Open Energy Information  

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432

Data:36e94aa1-9c10-48b6-83b6-0036180e69ba | Open Energy Information  

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433

Data:3aac11a8-e5ba-45b0-a4e3-277c4c9da056 | Open Energy Information  

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434

Measurement of sin2 ??eff and Z-light quark couplings using the forward-backward charge asymmetry in pp? -> Z/gamma* -> e+e- events with L=5.0 fb-1 at ?s=1.96 TeV  

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

We measure the mass dependence of the forward-backward charge asymmetry in 157,553 pp? = Z/?* = e+e- interactions, corresponding to 5.0 fb-1 of integrated luminosity collected by the D0 experiment at the Fermilab Tevatron Collider at ?s = 1.96 TeV. The effective weak mixing angle (??eff) from this process involving predominantly the first generation of quarks is extracted as sin2 ??eff = 0.2309 0.0008 (stat.) 0.0006 (syst.). We also present the most precise direct measurement of the vector and axial-vector couplings of u and d quarks to the Z boson.

Abazov, V M [Dubna, JINR; Abbott, B [Oklahoma U.; Acharya, B S [Tata Inst.; Adams, M [Illinois U., Chicago; Adams, T [Florida State U.; Alexeev, G D [Dubna, JINR; Alkhazov, G [St. Petersburg, INP; Alton, A [Augustana Coll., Sioux Falls; Michigan U.; Alverson, G [Northeastern U.; Alves, G A [Rio de Janeiro, CBPF; Ancu, L S [NIKHEF, Amsterdam; Fermilab

2011-07-26T23:59:59.000Z

435

Possible origin of the nonmonotonic doping dependence of the in-plane resistivity anisotropy of Ba(Fe1-xTx)?As? (T=Co, Ni and Cu)  

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

The in-plane resistivity anisotropy has been measured for detwinned single crystals of Ba(Fe1-xNix)?As? and Ba(Fe1-xCux)?As?. The data reveal a nonmonotonic doping dependence, similar to previous observations for Ba(Fe1-xCox)?As?. Magnetotransport measurements of the parent compound reveal a nonlinear Hall coefficient and a large linear term in the transverse magnetoresistance. Both effects are rapidly suppressed with chemical substitution over a similar compositional range as the onset of the large in-plane resistivity anisotropy. This suggests that the relatively small in-plane anisotropy of the parent compound in the spin-density wave state is due to the presence of an isotropic, high mobility pocket of the reconstructed Fermi surface. Progressive suppression of the contribution to the conductivity arising from this isotropic pocket with chemical substitution eventually reveals the underlying in-plane anisotropy associated with the remaining Fermi surface pockets

Kuo, Hsueh-Hui; Chu, Jiun-Haw; Riggs, Scott C.; Yu, Leo; McMahon, Peter L.; De Greve, Kristiaan; Yamamoto, Yoshihisa; Analytis, James G.; Fisher, Ian R.

2011-08-01T23:59:59.000Z

436

abstract-BA.docx  

E-Print Network [OSTI]

Unconventional resources: Petrophysical (seismic) properties of oil and gas shales. J. M. Carcione. OGS, Trieste, Italy. Source rocks (self-resourcing shales),

Angelo Camerlenghi

437

BA-PIRC  

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

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438

college dept level degree major/minor  

E-Print Network [OSTI]

AA ARCH GR M ARCH Architecture NONE No Concentration ARCH-M Architecture AA ARCH GR M ARCM Architecture NONE No Concentration ARCM-M Architecture AA ARCH UG BA ENVD Environmental Design NONE ANRS UG BS SFLP Sustainable Food and Bioenergy SULP Sustainable Livestock Product SFLP-BS Sustainable

Lawrence, Rick L.

439

Structure and dielectric properties of Ba{sub 5}NdCu{sub 1.5}Nb{sub 8.5}O{sub 30??} tungsten bronze ceramics  

SciTech Connect (OSTI)

Highlights: ? Tetragonal tungsten bronze ceramic Ba{sub 5}NdCu{sub 1.5}Nb{sub 8.5}O{sub 30??} was prepared. ? Titanium was replaced by copper in M{sub 5}RTi{sub 3}Nb{sub 7}O{sub 30} for the first time. ? Detailed structural information was retrieved by Rietveld refinement. ? An obvious relaxor-like dielectric behavior was observed in this ceramic, ion disorders in A1 and B sites contribute to this behavior. - Abstract: A new type of tungsten bronze ceramic Ba{sub 5}NdCu{sub 1.5}Nb{sub 8.5}O{sub 30??} has been prepared by a conventional solid-state reaction technique. Its structural, dielectric properties were investigated. Rietveld analysis shows that Ba{sub 5}NdCu{sub 1.5}Nb{sub 8.5}O{sub 30??} has a single-phase tetragonal (space group P4bm and lattice constants a = b = 12.4961(4) ?, c = 3.9426(8) ?, V = 615.66(4) ?{sup 3}) tungsten bronze structure. The occupations of sites A and B are quite interesting. A1 sites are fully disordered occupied by Ba ions and Nd ions and A2 sites for Ba ions only, while B-sites are equal for both Cu and Nb ions to occupy. This material exhibits an obvious relaxation behavior in the 213573 K temperature range. The dielectric constants have been fitted by the modified CurieWeiss law and all the estimated ? values are close to 2, confirming the typical relaxor ferroelectric behavior. The disorders of Ba{sup 2+} or Nd{sup 3+} in A1 sites and Nb{sup 5+}, Cu{sup 2+} in B sites induced by the oxygen vacancies may contribute to this dielectric behavior.

Tan, Yan-Qing; Yu, Yuan [College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, 19(A) Yu Quan Road, Beijing 100049 (China); Hao, Yong-Mei, E-mail: ymhao@ucas.ac.cn [College of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, 19(A) Yu Quan Road, Beijing 100049 (China); Dong, Su-Ying; Yang, Yi-Wen [Beijing National Day School, 66 Yu Quan Road, Beijing 100039 (China)

2013-05-15T23:59:59.000Z

440

A neutron scattering study of the interplay between structure and magnetism in Ba(Fe1−xCox)2As2  

SciTech Connect (OSTI)

Single crystal neutron diffraction is used to investigate the magnetic and structural phase diagram of the electron doped superconductor Ba(Fe{sub 1-x}Co{sub x}){sub 2}As{sub 2}. Heat capacity and resistivity measurements have demonstrated that Co doping this system splits the combined antiferromagnetic and structural transition present in BaFe{sub 2}As{sub 2} into two distinct transitions. For x=0.025, we find that the upper transition is between the high-temperature tetragonal and low-temperature orthorhombic structures with (T{sub TO} = 99 {+-} 0.5 K) and the antiferromagnetic transition occurs at T{sub AF} = 93 {+-} 0.5 K. We find that doping rapidly suppresses the antiferromagnetism, with antiferromagnetic order disappearing at x {approx} 0.055. However, there is a region of co-existence of antiferromagnetism and superconductivity. The effect of the antiferromagnetic transition can be seen in the temperature dependence of the structural Bragg peaks from both neutron scattering and x-ray diffraction. We infer from this that there is strong coupling between the antiferromagnetism and the crystal lattice.

Lester, C.

2010-06-02T23:59:59.000Z

Note: This page contains sample records for the topic "ba sin gr" 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

Oxygen concentration of Eu sub 1 Ba sub 2 Cu sub 3 O sub 7 minus x in vacuum: An atom probe study  

SciTech Connect (OSTI)

Atom Probe mass analysis, at 85 K, using a wide-angle instrument was used to measure the oxygen content and metallic stoichiometry of the near-surface region of the superconducting ceramic oxide Eu{sub 1}Ba{sub 2}Cu{sub 3}O{sub 7{minus}{ital x}} ({ital x}{approx equal}0.1) after vacuum exposure at room temperature. Routine specimen preparation, handling, and field-ion imaging produced a specimen which had already lost oxygen such that its measured surface oxygen content corresponded to {ital x}=0.73 and the metallic stoichiometry of the surface was not the expected 1:2:3 but was enhanced in Ba and Eu. The specimen was subsequently exposed to vacuum for up to 80 h at room temperature and no additional loss of oxygen was detected. It was concluded that either (1) a stoichiometric low-oxygen surface also would not have lost oxygen or (2) the nonstoichiometric layer forms a barrier for subsequent oxygen loss.

Elswijk, H.B.; Melmed, A.J.; Camus, P.P. (National Institute of Standards and Technology, Surface Science Division, Gaithersburg, Maryland 20899 (US))

1989-12-18T23:59:59.000Z

442

FT-IR and thermoluminescence investigation of P{sub 2}O{sub 5}-BaO-K{sub 2}O glass system  

SciTech Connect (OSTI)

The 0.5P{sub 2}O{sub 5}?xBaO?(0.5?x)K{sub 2}O glass system (0?x?0.5mol%) is investigated by FT-IR and thermoluminescence as a possible dosimetic material. FT-IR spectra show structural network modifications with the composition variations of the studied glasses. The predominant absorption bands are characterized by two broad peaks near 500 cm{sup ?1}, two weak peaks around 740 cm{sup ?1} and three peaks in the 9001270 cm{sup ?1} region. The shift in the position of the band assigned to asymmetric stretching of PO{sub 2}{sup ?} group, ?{sub as}(PO{sub 2}{sup ?}) modes from ?1100 cm{sup ?1} to 1085 cm{sup ?1} and the decrease in its relative intensity with the increasing of K{sub 2}O content shows a network modifier role of this oxide.. Luminescence investigations show that by adding modifier oxides in the phosphate glass a dose dependent TL signals result upon irradiation. Thus P{sub 2}O{sub 5}BaOK{sub 2}O glass system is a possible candidate material for dosimetry in the dose 0 50 Gy range.

Ivascu, C. [Babes-Bolyai University, Faculty of Physics, Kogalniceanu 1, 400084 Cluj Napoca (Romania)] [Babes-Bolyai University, Faculty of Physics, Kogalniceanu 1, 400084 Cluj Napoca (Romania); Timar-Gabor, A. [Babes-Bolyai University, Faculty of Environmental Science, Fantanele 30, 400294 Cluj Napoca (Romania)] [Babes-Bolyai University, Faculty of Environmental Science, Fantanele 30, 400294 Cluj Napoca (Romania); Cozar, O. [Babes-Bolyai University, Faculty of Physics, Kogalniceanu 1, 400084 Cluj Napoca, Romania and Academy of Romanian Scientists, Splaiul Independentei 54, 050094, Bucharest (Romania)] [Babes-Bolyai University, Faculty of Physics, Kogalniceanu 1, 400084 Cluj Napoca, Romania and Academy of Romanian Scientists, Splaiul Independentei 54, 050094, Bucharest (Romania)

2013-11-13T23:59:59.000Z

443

Enhancement in the multiferroic properties of BiFeO{sub 3} by charge compensated aliovalent substitution of Ba and Nb  

SciTech Connect (OSTI)

Polycrystalline ceramics, Bi{sub 1-2x}Ba{sub 2x}Fe{sub 1-x}Nb{sub x}O{sub 3} (x = 0.000.15), were synthesized by solid state reactions method. X-ray diffraction data have revealed elimination of impurity phases and an increase in unit cell volume with Ba and Nb substitution. Diffraction peak splitting is found to be suppressed which indicates a decrease in octahedral distortion. The Mssbauer spectra demonstrate the suppression of spiral spin modulation of the magnetic moments resulting in enhanced ferromagnetism with increasing dopant concentration. The leakage current density of the sample with x = 0.10 is found to be greatly reduced up to six orders of magnitude as compared to the undoped sample. Ohmic conduction is found to be dominant mechanism in all the samples, however, undoped sample showed space charge limited conduction in high electric filed region, while the sample with x = 0.15 exhibited grain boundary limited conduction in low electric field region.

Makhdoom, A. R., E-mail: javedakhtar6@gmail.com, E-mail: a.r.makhdoom@gmail.com; Rafiq, M. A.; Hasan, M. M. [Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences Nilore, Islamabad (Pakistan)] [Department of Metallurgy and Materials Engineering, Pakistan Institute of Engineering and Applied Sciences Nilore, Islamabad (Pakistan); Akhtar, M. J., E-mail: javedakhtar6@gmail.com, E-mail: a.r.makhdoom@gmail.com; Siddique, M.; Iqbal, M. [Physics Division, PINSTECH, P.O. Nilore, Islamabad (Pakistan)] [Physics Division, PINSTECH, P.O. Nilore, Islamabad (Pakistan)

2014-03-15T23:59:59.000Z

444

Site-Selective Determination of Magnetic Helices in BaTiCoFe{sub 10}O{sub 19} by Resonant Magnetic Scattering  

SciTech Connect (OSTI)

Synchrotron radiation intensity measurements were made for single crystals of ferrimagnetic BaTiCoFe{sub 10}O{sub 19} at the BL-6C(3A) beamline of the Photon Factory. The resonant x-ray magnetic scattering (RXMS) method at the Fe K edge makes it possible to determine the magnetic crystal structure, having the magnetic helices for Fe ions in tetrahedral 4f{sub 1}, bipyramidal 2b, and octahedral 2a, 4f{sub 2} and 12k sites. Based on the information on x-ray magnetic circular dichroism (XMCD) and a resonant magnetic scattering factor f''{sub m} ( = 0.23) estimated from BaFe{sub 12}O{sub 19} at E = 7128.2 eV, the magnetic structures have been determined from an asymmetrical ratio {Delta}R (Y{sup +}-Y{sup -})/(Y{sup +}+Y{sup -}), where Y{sup +} and Y{sup -} are scattering intensities for left- and right-circular polarizations, respectively. Spin orientations were estimated in the least-squares procedure to minimize a residual factor of {Sigma}({Delta}R{sub obs}-{Delta}R{sub calc}){sup 2}. The canting angles estimated in this study are 180 deg., 19 deg., 118 deg., 180 deg. and 65 deg. for the magnetic moments of Fe ions in 4f{sub 1}, 2b, 2a, 4f{sub 2} and 12k sites, respectively.

Okube, Maki; Kaneko, Yuhei; Ohsawa, Seiji; Sasaki, Satoshi [Materials and Structures Laboratory, Tokyo Institute of Technology, Nagatsuta 4259, Yokohama 226-8503 (Japan); Toyoda, Takeshi [Industrial Research Institute of Ishikawa, Kuratsuki 2-1, Kanazawa 920-8203 (Japan); Mori, Takeharu [Photon Factory, Institute of Materials Structure Science, KEK, Oho 1-1, Tsukuba 305-0801 (Japan)

2010-06-23T23:59:59.000Z

445

Thermoelectric Properties of Au- Containing Type-I Clathrates Ba8AuxGa16-3xGe30+2x  

SciTech Connect (OSTI)

Type I clathrates, with compositions based on Ba8Ga16Ge30, are a class of promising thermoelectric materials due to their intrinsically low thermal conductivity. It has been demonstrated previously that the thermoelectric performance can be improved by transition metal substitution of the framework atoms. In this study, the effects of Au substitution for Ga/Ge on thermal and electrical transport properties of type I clathrate compounds have been investigated. Polycrystalline samples with a large range of Au content have been synthesized using conventional solid state techniques with the actual compositions of resulting materials approximately following Zintl-Klemm rules. The charge carrier type changes from electrons (n) to holes (p) as the Au content increases. The Seebeck coefficient (S) and power factor (S2/ where is the electrical resistivity) were improved by Au substitution and the resulting overall thermoelectric properties were enhanced by Au substitution with a thermoelectric figure of merit ZT ~ 0.63 at temperature T = 740 K for the composition Ba8Au5.47Ge39.96. The results presented herein show that Au-containing type I clathrates are promising p-type thermoelectric materials for high temperature applications.

Ye, Zuxin [Optimal Inc., Plymouth, Michigan 48170, USA] [Optimal Inc., Plymouth, Michigan 48170, USA; Cho, Jung Young [Optimal Inc., Plymouth, Michigan 48170, USA] [Optimal Inc., Plymouth, Michigan 48170, USA; Tessema, Misle M. [Optimal Inc., Plymouth, Michigan 48170, USA] [Optimal Inc., Plymouth, Michigan 48170, USA; Salvador, James R. [General Motors, Global Research and Development] [General Motors, Global Research and Development; Waldo, Richard A. [General Motors, Global Research and Development] [General Motors, Global Research and Development; Yang, Jihui [University of Washington] [University of Washington; Wang, Hsin [ORNL] [ORNL; Cai, Wei [ORNL] [ORNL; Kirkham, Melanie J [ORNL] [ORNL; Yang, Jiong [Chinese Academy of Sciences (CAS)] [Chinese Academy of Sciences (CAS); Zhang, Wenqing [Shanghai Institute of Ceramics, Chinese Academy of Sciences (SICCAS)] [Shanghai Institute of Ceramics, Chinese Academy of Sciences (SICCAS)

2014-01-01T23:59:59.000Z

446

Determination of anisotropic He2 up to 46 T in (BaO.55K0.45)Fe2As2 single crystals  

SciTech Connect (OSTI)

The magnetoresistance and the radio frequency penetration depth was measured in the superconductor (Ba{sub 0.55}K{sub 0.45})Fe{sub 2}As{sub 2} under pulsed arid static magnetic fields extending to 46 tesla and down to 20 K. Using these data we are able to infer a H{sub c2}(T), H - T phase diagram, for applied fields parallel and perpendicular to the crystallographic c-axis. The upper critical field anisotropy is moderate, {approx} 3.5 close to T{sub c} , and decreases with the decrease of temperature, reaching {approx} 1.5 at T {approx} 20K. These data and analysis indicate that (i) (Ba{sub 0.55}K{sub 0.45})Fe{sub 2}As{sub 2} is well described by Ginzburg-Landau theory and at 20 K is very close to a dimensional crossover and (ii) H{sub c2}(T = 0) for this compound may easily approach fields of 75 tesla.

Altarawneh, M M [Los Alamos National Laboratory; Collar, K N [Los Alamos National Laboratory; Mielke, C H [Los Alamos National Laboratory; Ni, N [IOWA STATE UNIV; Bud'ko, S [IOWA STATE UNIV.; Canfield, P [IOWA STATE UNIV

2008-01-01T23:59:59.000Z

447

Systematics of the temperature-dependent interplane resistivity in Ba(Fe1-xMx)?As? (M=Co, Rh, Ni, and Pd)  

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

Temperature-dependent interplane resistivity ?c(T) was measured systematically as a function of transition-metal substitution in the iron-arsenide superconductors Ba(Fe1-xMx)?As?, M=Ni, Pd, Rh. The data are compared with the behavior found in Ba(Fe1-xCox)?As?, revealing resistive signatures of pseudogap. In all compounds we find resistivity crossover at a characteristic pseudogap temperature T* from nonmetallic to metallic temperature dependence on cooling. Suppression of T* proceeds very similarly in cases of Ni and Pd doping and much faster than in similar cases of Co and Rh doping. In cases of Co and Rh doping an additional minimum in the temperature-dependent ?c emerges for high dopings, when superconductivity is completely suppressed. These features are consistent with the existence of a charge gap covering part of the Fermi surface. The part of the Fermi surface affected by this gap is notably larger for Ni- and Pd-doped compositions than in Co- and Rh-doped compounds.

Tanatar, M. A.; Ni, N.; Thaler, A.; Budko, S. L.; Canfield, P. C.; Prozorov, R.

2011-07-01T23:59:59.000Z

448

Microstructural features and domain formation in (Ba,Sr){sub 2}TiSi{sub 2}O{sub 8} fresnoites  

SciTech Connect (OSTI)

The formation and co-existence of crystallographically modulated and non-modulated regions in (Ba,Sr){sub 2}TiSi{sub 2}O{sub 8} fresnoites is reviewed, particularly the dependence on local composition. It is shown that perturbations of the average fresnoite structure, determined from appreciable single crystals, are in some cases better described as nanometric domain intergrowths where departures from ideal stoichiometry are characteristics of incommensuration, while modulation is absent from volumes that are less perturbed chemically. Evidence for this differentiation is obtained from selected area electron diffraction (SAED) patterns and high-resolution transmission electron microscopy (HRTEM) images. The domains are readily distinguished by their unique contrast in bright field electron micrographs. Fourier reconstructions of HRTEM images collected from areas with darker contrast show that modulation can change within relatively small volumes. Nearby areas with lighter contrast were found by SAED to be free of structural disorder and incommensurate reflections. - Graphical abstract: Fresnoite layers contain SiO{sub 4} and TiO{sub 5} polyhedra that undergo run rotation and tilting to create 3D, 4D and 5D structural modulations that can be directly observed by electron diffraction and high resolution imaging. Highlights: {yields}(Ba,Sr){sub 2}TiSi{sub 2}O{sub 8} fresnoites contain commensurate and incommensurate domains. > Departures in stoichiometry promote the formation of nanostructured domains. > Domains formation may provide a means for reducing strain in single crystals.

Wong, Chui Ling, E-mail: wong0233@e.ntu.edu.sg [School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798 (Singapore); Ferraris, Cristiano [Laboratoire de Mineralogie et Cosmchimie du Museum National d'Historie Naturelle, UMR-CNRS 7202, CP 52, 61 Rue Buffon, 75005 Paris (France); White, T.J. [School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798 (Singapore); Centre for Advanced Microscopy, The Australian National University, Canberra ACT 0200 (Australia)

2011-07-15T23:59:59.000Z

449

Light scattering from ,,K0.5Na0.5...0.2,,Sr0.75Ba0.25...0.9Nb2O6 with the tungsten bronze structure: An analogy with relaxor ferroelectrics  

E-Print Network [OSTI]

Light scattering from ,,K0.5Na0.5...0.2,,Sr0.75Ba0.25...0.9Nb2O6 with the tungsten bronze structure a complex single crystal from the tungstenbronze family, K0.5Na0.5 0.2 Sr0.75Ba0.25 0.9Nb2O6 doped with Cu2 photorefractive material.1 KNSBN originates from the tungstenbronze family of ferroelectrics. KNSBN has two close

450

The chemical stability and conductivity of BaCe{sub 0.9-x}Y{sub x}Nb{sub 0.1}O{sub 3-{sigma}} proton-conductive electrolyte for SOFC  

SciTech Connect (OSTI)

BaCe{sub 0.8}Y{sub 0.2}O{sub 3-{delta}} and BaCe{sub 0.9-x}Y{sub x}Nb{sub 0.1}O{sub 3-{delta}} (x = 0.1, 0.15, 0.2, 0.25, 0.3, 0.35) were prepared by a solid-state reactions. It was found that the BaCe{sub 0.8}Y{sub 0.2}O{sub 3-{delta}} samples decomposed into CeO{sub 2} and BaCO{sub 3} after being exposed in the atmosphere (3% CO{sub 2} + 3% H{sub 2}O + 94% N{sub 2}) at 700 deg. C for 10 h. However, samples containing Nb remains unchanged in the same conditions, demonstrating a better stability in the presence of CO{sub 2} and H{sub 2}O. The conductivity of BaCe{sub 0.9-x}Y{sub x}Nb{sub 0.1}O{sub 3-{delta}} increased with the increase of Y content (x {<=} 0.30), and the highest value was observed at x = 0.30 where a significant decrease in conductivity took place at x = 0.35. The conductivity of BaCe{sub 0.6}Y{sub 0.3}Nb{sub 0.1}O{sub 3-{delta}} reaches 0.01 S/cm in humid hydrogen at 700 deg. C, slight lower than BaCe{sub 0.8}Y{sub 0.2}O{sub 3-{delta}}, 0.012 S/cm in the same conditions. Fuel cell with BaCe{sub 0.6}Y{sub 0.3}Nb{sub 0.1}O{sub 3-{delta}} as-prepared was successfully prepared and humidified hydrogen was supplied as fuels in evaluating the fuel cell performance. The open circuit voltage, peak power density and interfacial resistance at 700 deg. C were 1.02 V, 345 mW/cm{sup 2} and 0.27 {Omega} cm{sup 2}, respectively.

Xie Kui [Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026 (China); Yan Ruiqiang [Department of Materials Engineering, Taizhou University, Linhai, Zhejiang 317000 (China); Xu Xiaoxiang [School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST (United Kingdom); Liu Xingqin, E-mail: xqliu@ustc.edu.cn [Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026 (China); Meng Guangyao [Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026 (China)

2009-07-01T23:59:59.000Z

451

Time-resolved spatial distribution of plasma in the ablation of a Ba{sub 0.6}Sr{sub 0.4}TiO{sub 3} target by 25?ns KrF ultraviolet laser  

SciTech Connect (OSTI)

We performed radially and longitudinally time-resolved plasma analysis during pulsed laser deposition of Ba{sub 0.6}Sr{sub 0.4}TiO{sub 3} thin films. The plasma is shown to be optically thick and strongly non-uniform during the early expansion phase and the resonance line Ba II (455.4?nm) is strongly self-reversed during this time. Plasma temperature and electron density were obtained by comparing experimental emission spectra with the spectral radiance computed for a non-uniform plasma in local thermal equilibrium.

Lagrange, J. F.; Wolfman, J.; Motret, O. [Groupe de Recherche en Matriaux, microlectronique, Acoustique et Nanotechnologies (GREMAN) - UMR 7347 CNRS-CEA, Universit Franois Rabelais de Tours, Facult des Sciences and Techniques, Parc Grandmont - bt. E 37200 Tours (France); Hermann, J. [Laboratoire Lasers, Plasmas et Procds Photoniques (LP3), UMR 6182 CNRS, Aix-Marseille Universit, 163 Avenue de Luminy, C. 917 - 13288 Marseille (France)

2014-10-07T23:59:59.000Z

452

Giant magnetocaloric effect of Mn{sub 0.92}Ba{sub 0.08}As thin film grown on Al{sub 2}O{sub 3}(0001) substrate  

SciTech Connect (OSTI)

The epitaxial Mn{sub 0.92}Ba{sub 0.08}As thin film was grown on Al{sub 2}O{sub 3}(0001) substrate by molecular beam epitaxy. The Curie temperature (T{sub C}) around 350 K was enhanced with the addition of Ba, compared to that of bulk MnAs (T{sub C} {approx} 318 K). We have observed the linear resistivity versus the square of temperature and high negative magnetoresistance near Curie temperature. Moreover, the giant magnetocaloric effect was found with maximum magnetic entropy change, 65 J/kgK, around room temperature at 5 T.

Dang Duc Dung [Department of Physics, University of Ulsan, Ulsan 690-749 (Korea, Republic of); Department of General Physics, School of Engineering, Ha Noi University of Science and Technology, 1 Dai Co Viet road, Ha Noi (Viet Nam); Duong Anh Tuan; Duong Van Thiet; Shin, Yooleemi; Cho, Sunglae [Department of Physics, University of Ulsan, Ulsan 690-749 (Korea, Republic of)

2012-04-01T23:59:59.000Z

453

Key: AAS/AS = Associate Degree Programs | BS/BA = Baccalaureate Degree Programs | MA/MS, MBA, MD, MPH and MSW = Master Degree Programs | DPT, AuD, DPH, DNP, DNS and PhD = Doctoral Degree Programs Joint degree program with SUNY Downstate. 2  

E-Print Network [OSTI]

, MPH and MSW = Master Degree Programs | DPT, AuD, DPH, DNP, DNS and PhD = Doctoral Degree Programs 1 Counseling MS Therapeutic Recreation BS AS AAS Social Work/Social Welfare BA MSW BA/ MSW BS BS PhD Surgical

Rosen, Jay

454

Dr. G.R. Abbe Dr. Pere Abello  

E-Print Network [OSTI]

. Robert J. Allman Mr. Michael D. Arendt Dr. Alexander I. Arkhipkin Dr. David A. Armstrong Dr. Colin. David M. Checkley Jr. Dr. Susan J. Chivers Dr. Phillip J. Clapham Dr. William Coles Mr. L. Alan Collins

455

ON DEL PLANO DE TEXTO EN AGENES GR  

E-Print Network [OSTI]

ESPECIALIDAD DE ELECTR #19; ONICA EN EL INSTITUTO NACIONAL DE ASTROF #19; ISICA, #19; OPTICA Y ELECTR #19, #19; OPTICA Y ELECTR #19; ONICA 1994 SUMARIO La extracci#19;on de caracteres en im#19;agenes de

Fraga, Luis Gerardo de la

456

SERVIOS AO Portaria n 461/2013/GR  

E-Print Network [OSTI]

Secretário de Relações Internacionais Secretário Adjunto Secretário de Aperfeiçoamento Institucional

Floeter, Sergio Ricardo

457

Simplicity in cosmology: add virialisation, remove $?$, keep classical GR  

E-Print Network [OSTI]

Present-day extragalactic observations are mostly rather well-modelled by a general-relativistic model, the $\\Lambda$ CDM model. The model appears to surpass the limits of known physics by requiring that the Universe be dominated by "dark energy". However, the model sacrifices physical simplicity in favour of applied mathematical simplicity. A physically simpler, general-relativistic alternative to the $\\Lambda$ CDM model is described here, along with preliminary observational checks. Thus, it will be argued that extragalactic observations such as the distance-modulus--redshift relation of type Ia supernovae are well-modelled within classical general relativity, without the addition of "new physics".

Boudewijn F. Roukema

2014-07-14T23:59:59.000Z

458

Kostas Vlachos e-mail: kostaswl@central.ntua.gr  

E-Print Network [OSTI]

. Their system consists of two magnetically levitated and kinemati- cally identical wrists, acting device 7 . The Phantom was used as a haptic master by Menciassi et al. 8 where a micro- instrument

Papadopoulos, Evangelos

459

e-mail: inikol@aueb.gr : 210 8203121  

E-Print Network [OSTI]

International Airport, Schneider Electric, Siemens, TOYTA, Citibank, Info ­ Quest, HSBC, Direct Services

Chatziantoniou, Damianos

460

Line patterning of (Sr,Ba)Nb{sub 2}O{sub 6} crystals in borate glasses by transition metal atom heat processing  

SciTech Connect (OSTI)

Some NiO-doped Bi{sub 2}O{sub 3},La{sub 2}O{sub 3}-SrO-BaO-Nb{sub 2}O{sub 5}-B{sub 2}O{sub 3} glasses giving the formation of strontium barium niobate Sr{sub 0.5}Ba{sub 0.5}Nb{sub 2}O{sub 6} (SBN) crystals with a tetragonal tungsten-bronze structure through conventional crystallization in an electric furnace have been developed, and SBN crystal lines have been patterned on the glass surface by heat-assisted (250-300 deg. C) laser irradiation and scanning of continuous-wave Nd:YAG laser (wavelength: 1064 nm). The surface morphology and the quality of SBN crystal lines are examined from measurements of confocal scanning laser micrographs and polarized micro-Raman scattering spectra. The surface morphology of SBN crystal lines changes from periodic bump structures to homogeneous structures, depending on laser scanning conditions. It is suggested that the line patterned at the laser irradiation condition of laser power P=1 W and of laser scanning speed S=1 {mu}m/s in 2NiO-4La{sub 2}O{sub 3}-16SrO-16BaO-32Nb{sub 2}O{sub 5}-30B{sub 2}O{sub 3} glass has a possibility of the orientation of SBN crystals along the laser scanning direction. The present study demonstrates that the transition metal atom heat processing (i.e., a combination of cw Nd:YAG laser and Ni{sup 2+} ions) is a novel technique for spatially selected crystallization of SBN crystals in glass. - Graphical abstract: This figure shows the polarization optical (a) and confocal scanning laser (b) micrographs for the sample obtained by heat-assisted (300 deg. C) Nd:YAG laser irradiation with a laser power of P=1 W and laser scanning speed of S=1 {mu}m/s in Glass C. The figure demonstrates that the transition metal atom heat processing (i.e., a combination of cw Nd:YAG laser and Ni{sup 2+} ions) is a novel technique for spatially selected crystallization of SBN crystals in glass.

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

2007-09-15T23:59:59.000Z

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


461

Origin of the superior conductivity of perovskite Ba(Sr)SnO3 Heng-Rui Liu, Ji-Hui Yang, H. J. Xiang, X. G. Gong, and Su-Huai Wei  

E-Print Network [OSTI]

Origin of the superior conductivity of perovskite Ba(Sr)SnO3 Heng-Rui Liu, Ji-Hui Yang, H. J. Xiang(Sr)SnO3 Heng-Rui Liu,1 Ji-Hui Yang,1 H. J. Xiang,1 X. G. Gong,1 and Su-Huai Wei2 1 Key Laboratory

Gong, Xingao

462

Curriculum for Dual Degree Program, B.A. in Chemistry and B.S. in Chemical Engineering Courses to be taken at the University of Massachusetts are indicated in bold.  

E-Print Network [OSTI]

Curriculum for Dual Degree Program, B.A. in Chemistry and B.S. in Chemical Engineering Courses Chemistry I Math 101 Calculus I Language Phys 115 Force, Motion, and Energy Engin 110 Intro to Chem. Eng. Chem 201 General Chemistry II Math 202 Calculus II Language ChE 120 Chem. Eng. Fundamentals 2nd Chem

Mountziaris, T. J.

463

Magnetoelectric effect in La{sub 0.7}Sr{sub 0.3}MnO{sub 3}BaTiO{sub 3} coreshell nanocomposite  

SciTech Connect (OSTI)

Highlights: ? The BaTiO{sub 3} in the coreshell structure undergoes large compressive strain. ? The LSMO in the coreshell structure exhibits enhanced magnetic moment. ? The anomaly in magnetization data indicates inherent magnetoelectric coupling. ? Overall the nanocomposite shows good magnetoelectric voltage coefficient value. - Abstract: We report the magnetoelectric properties of La{sub 0.7}Sr{sub 0.3}MnO{sub 3}BaTiO{sub 3} coreshell nanostructure synthesized by solgel method. X-ray diffraction analysis suggests that the BaTiO{sub 3} undergoes large strain in the coreshell structure which can be attributed to lattice induced strain. Interestingly, the coreshell nanoparticle exhibits enhanced magnetization (143 emu/g) compared to the ferromagnetic La{sub 0.7}Sr{sub 0.3}MnO{sub 3} bare core (20 emu/g). The coreshell structure also exhibits inherent magnetoelectric coupling which is reflected as an anomaly at the ferroelectric transition in the magnetization measurement. The direct magnetoelectric measurement on La{sub 0.7}Sr{sub 0.3}MnO{sub 3}BaTiO{sub 3} nanocomposite revealed the magnetoelectric voltage coefficient value as 54.5 mV/cm Oe at 1 kOe, which is a promising result compared to the other perovskite based nanocomposites.

Nayek, Chiranjib; Sahoo, Kishor Kumar [Department of Physics, Indian Institute of Technology Madras, Chennai 600036 (India); Murugavel, P., E-mail: muruga@iitm.ac.in [Department of Physics, Indian Institute of Technology Madras, Chennai 600036 (India)

2013-03-15T23:59:59.000Z

464

Transition from Three-Dimensional Anisotropic Spin Excitations to Two-Dimensional Spin Excitations by Electron Doping the FeAs-Based BaFe1:96Ni0:04As2 Superconductor  

E-Print Network [OSTI]

by Electron Doping the FeAs-Based BaFe1:96Ni0:04As2 Superconductor Leland W. Harriger,1 Astrid Schneidewind,2 arsenides is important because high-transition temperature (high-Tc) superconductivity arises from electron optimal superconductivity [46], the gapped spin wave excitations were replaced by a gapless continuum

Hu, Jiangping

465

Two-Dimensional Superconducting Fluctuations in Stripe-Ordered La1:875Ba0:125CuO4 Q. Li, M. Hucker, G. D. Gu, A. M. Tsvelik, and J. M. Tranquada  

E-Print Network [OSTI]

Two-Dimensional Superconducting Fluctuations in Stripe-Ordered La1:875Ba0:125CuO4 Q. Li, M. Hu of two-dimensional (2D) fluctuating superconductivity, which eventually reaches a 2D superconductingxBaxCuO4 frustrates three-dimensional superconducting phase order, but is fully compatible with 2D

466

How to Obtain Your DARS to Declare the BA Economics Major Once you've logged into the BU Brain and entered your B#, you will need to do the following  

E-Print Network [OSTI]

How to Obtain Your DARS to Declare the BA Economics Major Once you've logged into the BU Brain DARS" The following screen prints will show you how to run the pre-declaration DARS for Economics the "Economics Pre-Declaration" DARS appears. Click "Economics Pre-Declaration" to open. Print the entire

Suzuki, Masatsugu

467

Role of S??hayk??h Muh?ammad K??hiya?ba?ni? and the Democratic Movement of Azerbaijan in the socio-political history of Iran 1910-1920  

E-Print Network [OSTI]

and foreign dynasties, we had to study a great deal about the lives of individual Kings; but hardly any space was allocated to the history of social and political movements in Iran. The names of patriots and political thinkers such as K?h?iya?ba?ni? were not...

Tabatabai Khatambakhsh, Mohammad-Taghi

1984-01-01T23:59:59.000Z

468

1234526789A45B85C4DE85E8 678159AB65BCD9EF5A4F1B65BA5E7C5  

E-Print Network [OSTI]

12345 1234526789A45B85C4DE85E8 678159AB65BCD9EF5A4F1B65BA5E7C5 F1ADBA755 4475A9A74A8B555D275.6.5 Optimisation pour les systèmes anisotropes . . . . . . . . . . . . . . . . 33 3 Validation du code

469

1234526789A45B85C4DE85E8 678159AB65BCD9EF5A4F1B65BA5E7C5  

E-Print Network [OSTI]

12345 1234526789A45B85C4DE85E8 678159AB65BCD9EF5A4F1B65BA5E7C5 F1ADBA755 4475A9A74A8B555D275;2.6.5 Optimisation pour les systèmes anisotropes . . . . . . . . . . . . . . . . 33 3 Validation du code

Paris-Sud XI, Université de

470

Coexistence of Cluster Spin Glass and Superconductivity in Ba(Fe1-xCox)2)As2 for 0.060 <= X <= 0.071  

SciTech Connect (OSTI)

We present As75 nuclear magnetic resonance data from measurements of a series of Ba(Fe1?xCox)2As2 crystals with 0.00?x?0.075 that reveals the coexistence of frozen antiferromagnetic domains and superconductivity for 0.060?x?0.071. Although bulk probes reveal no long range antiferromagnetic order beyond x=0.06, we find that the local spin dynamics reveal no qualitative change across this transition. The characteristic domain sizes vary by more than an order of magnitude, reaching a maximum variation at x=0.06. This inhomogeneous glassy dynamics may be an intrinsic response to the competition between superconductivity and antiferromagnetism in this system.

Dioguardi, A. P. [University of California; Crocker, J. [University of California; Shcokley, A. C. [University of California; Lin, C. H. [University of California; Shirer, K. R. [University of California; Nisson, D. M. [University of California; Lawson, M. M. [University of California; Roberts-Warren, N. [University of California; Canfield, Paul C. [Ames Laboratory; Budko, Sergey L. [Ames Laboratory; Ran, Sheng [Ames Laboratory; Curro, N. J. [University of California

2013-11-12T23:59:59.000Z

471

NLTE strontium abundance in a sample of extremely metal poor stars and the Sr/Ba ratio in the early Galaxy  

E-Print Network [OSTI]

Heavy element abundances in extremely metal-poor stars provide strong constraints on the processes of forming these elements in the first stars. We attempt to determine precise abundances of strontium in a homogeneous sample of extremely metal-poor stars. The abundances of strontium in 54 very or extremely metal-poor stars, was redetermined by abandoning the local thermodynamic equilibrium (LTE) hypothesis, and fitting non-LTE (NLTE) profiles to the observed spectral lines. The corrected Sr abundances and previously obtained NLTE Ba abundances are compared to the predictions of several hypothetical formation processes for the lighter neutron-capture elements. Our NLTE abundances confirm the previously determined huge scatter of the strontium abundance in low metallicity stars. This scatter is also found (and is even larger) at very low metallicities (i. e. early in the chemical evolution). The Sr abundance in the extremely metal-poor (EMP) stars is compatible with the main r-process involved in other processe...

Andrievsky, S M; Korotin, S A; Francois, P; Spite, M; Bonifacio, P; Cayrel, R; Hill, V

2011-01-01T23:59:59.000Z

472

Epitaxial Ba{sub 2}IrO{sub 4} thin-films grown on SrTiO{sub 3} substrates by pulsed laser deposition  

SciTech Connect (OSTI)

We have synthesized epitaxial Ba{sub 2}IrO{sub 4} (BIO) thin-films on SrTiO{sub 3} (001) substrates by pulsed laser deposition and studied their electronic structure by dc-transport and optical spectroscopic experiments. We have observed that BIO thin-films are insulating but close to the metal-insulator transition boundary with significantly smaller transport and optical gap energies than its sister compound, Sr{sub 2}IrO{sub 4}. Moreover, BIO thin-films have both an enhanced electronic bandwidth and electronic-correlation energy. Our results suggest that BIO thin-films have great potential for realizing the interesting physical properties predicted in layered iridates.

Nichols, J., E-mail: john.nichols@uky.edu; Korneta, O. B.; Terzic, J.; Cao, G.; Brill, J. W.; Seo, S. S. A. [Department of Physics and Astronomy, University of Kentucky, Lexington, Kentucky 40506 (United States)

2014-03-24T23:59:59.000Z

473

Rare-Earths Centers (Sm{sup 3+}, Eu{sup 3+}, Yb{sup 3+}) in MeF{sub 2}(Me = Ca, Sr, Ba, Cd) Crystals  

SciTech Connect (OSTI)

Rare-earth elements RE{sup 3+}(RE = Sm, Eu, Yb) form impurity centers in fluorite-like crystals MeF{sub 2}(Me = Ca, Sr, Ba, Cd). The crystal structure of cubic, trigonal and tetragonal centers in MeF{sub 2} has been investigated in the framework of shell model and pair potential approximation. The crystal field parameters were calculated with the exchange charges model, using the optimized geometry of the doped host matrix. With these parameters we have been calculated the optical spectra and spin-Hamiltonian (g-factors) of RE{sup 3+} in MeF{sub 2}, for some combination of R{sup 3+} and MeF{sup 2}. The obtained results were discussed and comparison with experimental data was made. A good agreement confirms the method and model of calculations.

Nikiforov, A. E.; Chernyshev, V. A.; Volodin, V. P. [Ural State University, 620083-Ekaterinburg, Lenin av. 51 (Russian Federation); Avram, N. M. [West University of Timisoara, Dept. of Physics, 300223-Timisoara, Bd. V. Parvan No. 4 (Romania); Academy of Romanian Scientists, Independentei 54, 050094-Bucharest (Romania); Avram, C. N.; Vaida, M. [West University of Timisoara, Dept. of Physics, 300223-Timisoara, Bd. V. Parvan No. 4 (Romania)

2010-08-04T23:59:59.000Z

474

Transport and magnetization critical current densities in TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub x} tapes  

SciTech Connect (OSTI)

The powder in tube process was used to produce silver-sheathed tapes of TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 8+x} (Tl-1223). The powder was produced by thalliating a precursor powder mixture to produce the Tl-2223 phase and then beating to drive off excess Tl and reach the Tl-1223 stoichiometry. The tapes were rolled and pressed, each step followed with a 3 h sintering. The 200 {mu}m thick tapes show little sign of texturing; however, the critical current shows a small ({approximately}50%) dependence on the direction of the applied magnetic field. Both transport and magnetization measurents indicate relatively strong pinning at high temperatures. The 75 K self field critical current density is 62 MA/m{sup 2}. Transport measurements reveal the presence of weak links at all temperatures, but with a relatively weak field dependence above {approx}0.1T.

Willis, J.O.; Maley, M.P.; Kung, P.J.; Coulter, J.Y.; Peterson, D.E.; Wahlbeck, P.G.; Bingert, J.F.; Phillips, D.S.

1992-10-01T23:59:59.000Z

475

Transport and magnetization critical current densities in TlBa sub 2 Ca sub 2 Cu sub 3 O sub x tapes  

SciTech Connect (OSTI)

The powder in tube process was used to produce silver-sheathed tapes of TlBa{sub 2}Ca{sub 2}Cu{sub 3}O{sub 8+x} (Tl-1223). The powder was produced by thalliating a precursor powder mixture to produce the Tl-2223 phase and then beating to drive off excess Tl and reach the Tl-1223 stoichiometry. The tapes were rolled and pressed, each step followed with a 3 h sintering. The 200 {mu}m thick tapes show little sign of texturing; however, the critical current shows a small ({approximately}50%) dependence on the direction of the applied magnetic field. Both transport and magnetization measurents indicate relatively strong pinning at high temperatures. The 75 K self field critical current density is 62 MA/m{sup 2}. Transport measurements reveal the presence of weak links at all temperatures, but with a relatively weak field dependence above {approx}0.1T.

Willis, J.O.; Maley, M.P.; Kung, P.J.; Coulter, J.Y.; Peterson, D.E.; Wahlbeck, P.G.; Bingert, J.F.; Phillips, D.S.

1992-01-01T23:59:59.000Z

476

Effect of electron irradiation on superconductivity in single crystals of Ba(Fe1-xRux)2As2 (x=0.24)  

SciTech Connect (OSTI)

A single crystal of isovalently substituted Ba(Fe1?xRux)2As2 (x=0.24) is sequentially irradiated with 2.5 MeV electrons up to a maximum dose of 2.11019 e?/cm2. The electrical resistivity is measured in situ at T=22??K during the irradiation and ex situ as a function of temperature between subsequent irradiation runs. Upon irradiation, the superconducting transition temperature Tc decreases and the residual resistivity ?0 increases. We find that electron irradiation leads to the fastest suppression of Tc compared to other types of artificially introduced disorder, probably due to the strong short-range potential of the pointlike irradiation defects. A more detailed analysis within a multiband scenario with variable scattering potential strength shows that the observed Tc versus ?0 is fully compatible with s pairing, in contrast to earlier claims that this model leads to a too rapid suppression of Tc with scattering.

Prozorov, Ruslan [Ames Laboratory; Konczykowski, M [Laboratoire des Solides Irradies; Tanatar, Makariy A. [Ames Laboratory; Thaler, Alexander [Ames Laboratory; Budko, Serguei L [Ames Laboratory; Canfield, Paul C [Ames Laboratory; Mishra, V [Argonne National Laboratory; Hirschfeld, P J [University of Florida

2014-11-01T23:59:59.000Z

477

Peak effect in laser ablated DyBa2Cu3O7-d films at microwave frequencies at subcritical currents  

E-Print Network [OSTI]

In this paper we report the observation of a peak in the microwave surface resistance (at frequencies ~10GHz) of laser ablated DyBa2Cu3O7-d films in magnetic field ranging from 2 to 9kOe (||c) close to the superconducting transition temperature (Tc(H)). The exact nature of peak is sample dependent but it follows a general behaviour. The peak shifts to lower temperature when the magnetic field is increased. It has strong frequency dependence and the peak is pronounced at frequencies close to the depinning frequency of the flux line lattice. From the observed temperature and field dependence we argue that this peak is associated with the order disorder transition of the flux line lattice close to Tc(H).

A. R. Bhangale; P. Raychaudhuri; T. Banerjee; R. Pinto; V. S. Shirodhkar

2000-11-16T23:59:59.000Z

478

Data:212e7afb-280e-4cc2-96ab-9520c2ba8ec5 | Open Energy Information  

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479

Data:2d47c27c-110e-4e9e-b20b-a2af01665fbb | Open Energy Information  

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480

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481

Data:Ceb670fe-3e5d-4c0b-84ba-05d4a2664868 | Open Energy Information  

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482

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483

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484

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485

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486

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487

Data:3bc19534-d050-427d-8d67-57ba9f63de31 | Open Energy Information  

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488

M o d e lin g B e d -L o a d T r a n sp o r t o f C o a r se S e d im e n ts in th e G r e a t B a y E stu a r y , N H , U sin g a 2 -D  

E-Print Network [OSTI]

M o d e lin g B e d -L o a d T r a n sp o r t o f C o a r se S e d im e n ts in th e G r e a t B a y E stu a r y , N H , U sin g a 2 -D K in e m a tic F lo o d in g -D e w a te r in g M o d e l A . B ilg ili1 , M .R . S w ift2 , D .R . L y n c h 1 a n d J.T .C . Ip 1 1 D a rtm o u th C o lle g e H a n

489

M o d e lin g B e d -L o a d T r a n sp o r t o f C o a r se S e d im e n ts in th e G r e a t B a y E stu a r y , N H , U sin g  

E-Print Network [OSTI]

M o d e lin g B e d -L o a d T r a n sp o r t o f C o a r se S e d im e n ts in th e G r e a t B a y E stu a r y , N H , U sin g a 2 -D K in e m a tic M o d e l A . B ilg ili1 , M .R . S w ift2 , D .R . L y n c h 1 a n d J.T .C . Ip 1 1 D a rtm o u th C o lle g e H a n o v e r, N H 0 3 7 5 5 , U .S

490

Site occupancy and cation binding states in reduced polycrystalline Sr{sub x}Ba{sub 1?x}Nb{sub 2}O{sub 6}  

SciTech Connect (OSTI)

Site occupancy and cation binding states in the proposed thermoelectric n-type oxide Sr{sub x}Ba{sub 1?x}Nb{sub 2}O{sub 6} (SBN100x) were investigated using X-ray photoelectron spectroscopy (XPS). Sr 3d XPS spectra from unreduced polycrystalline SBN100x with various compositions contained two distinct spin-orbit doublets corresponding to Sr occupying either A1 or A2 positions in the SBN lattice; the higher binding energy state was associated with Sr ions at A2 sites, presumably due to their increased coordination over Sr at A1 sites. To gain insight into optimizing the thermoelectric properties of reduced SBN, sintered SBN50 specimens were reduced in Ar/H{sub 2} or N{sub 2}/H{sub 2} ambient. A decrease in the average Nb valence was observed in Nb 3d photoemission through the growth of low-binding energy components after reduction in either environment; evidence of surface NbN formation was apparent with longer reducing times in N{sub 2}/H{sub 2}. Both the single-component Ba 3d emission and the A2 component of the Sr 3d spectra show shifting to lower binding energy as the reduction time is increased, supporting the hypothesis of preferential oxygen vacancy formation adjacent to A2 sites. X-ray diffraction patterns revealed the formation of NbO{sub 2} in both reducing environments; in the case of extended reduction in N{sub 2}/H{sub 2}, NbO{sub 2} is gradually converted to NbN phases. Given the known properties of metallic NbN and semiconducting NbO{sub 2}, the findings obtained here may be used to maximize the thermoelectric performance of SBN via the fabrication of composite structures containing both NbO{sub 2} and NbN.

Dandeneau, Christopher S., E-mail: dandec@u.washington.edu; Yang, YiHsun; Ohuchi, Fumio S. [Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195 (United States)] [Department of Materials Science and Engineering, University of Washington, Seattle, Washington 98195 (United States); Krueger, Benjamin W.; Olmstead, Marjorie A. [Department of Physics, University of Washington, Seattle, Washington 98195 (United States)] [Department of Physics, University of Washington, Seattle, Washington 98195 (United States); Bordia, Rajendra K. [Department of Materials Science and Engineering, Clemson University, Clemson, South Carolina 29634 (United States)] [Department of Materials Science and Engineering, Clemson University, Clemson, South Carolina 29634 (United States)

2014-03-10T23:59:59.000Z

491

Symmetry determination on Pb-free piezoceramic 0.5Ba(Zr{sub 0.2}Ti{sub 0.8})O{sub 3}-0.5(Ba{sub 0.7}Ca{sub 0.3})TiO{sub 3} using convergent beam electron diffraction method  

SciTech Connect (OSTI)

(1?x)(Ba(Zr{sub 0.2}Ti{sub 0.8})O{sub 3}-x(Ba{sub 0.7}Ca{sub 0.3})TiO{sub 3} (BZT-xBCT) Pb-free piezoceramic has been reported showing ultrahigh piezoelectric performance in its morphotropic phase boundary (MPB) region. However, the crystal structure characteristic for the MPB composition of BZT-xBCT is still under debatebetween single orthorhombic phase and tetragonal + rhombohedral two phase mixture. In the present study, we perform the local symmetry determination on the MPB composition x = 0.5 using convergent beam electron diffraction analysis (CBED). Our CBED results from multiple zone axes suggest that there are two coexisting phases with the point group symmetries of 4?mm (tetragonal) and 3?m (rhombohedral) respectively, which agree with two phase mixture model. The strong piezoelectricity can thus be understood by considering the polarization rotation between tetragonal and rhombohedral phases by external field.

Gao, Jinghui, E-mail: gaojinghui@mail.xjtu.edu.cn; Zhong, Lisheng [Multi-Disciplinary Materials Research Center, State Key Lab of Electrical Insulation and Power Equipment and Frontier Institute of Science and Technology, Xi'an, 710049 (China); Zhang, Lixue; Xue, Dezhen [Multi-Disciplinary Materials Research Center, State Key Lab of Electrical Insulation and Power Equipment and Frontier Institute of Science and Technology, Xi'an, 710049 (China); State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049 (China); Kimoto, Takayoshi [Ferroic Physics Group, National Institute for Materials Science, Tsukuba, 305-0047, Ibaraki (Japan); Song, Minghui [Electron Microscopy Group, National Institute for Materials Science, Tsukuba, 305-0047, Ibaraki (Japan); Ren, Xiaobing [Multi-Disciplinary Materials Research Center, State Key Lab of Electrical Insulation and Power Equipment and Frontier Institute of Science and Technology, Xi'an, 710049 (China); State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049 (China); Ferroic Physics Group, National Institute for Materials Science, Tsukuba, 305-0047, Ibaraki (Japan)

2014-02-07T23:59:59.000Z

492

Unification of the negative electrocaloric effect in Bi{sub 1/2}Na{sub 1/2}TiO{sub 3}-BaTiO{sub 3} solid solutions by Ba{sub 1/2}Sr{sub 1/2}TiO{sub 3} doping  

SciTech Connect (OSTI)

The microscopic mechanisms of the negative electrocaloric effect (ECE) of the single-phase (1?x)(0.94Bi{sub 1/2}Na{sub 1/2}TiO{sub 3}-0.06BaTiO{sub 3})-xBa{sub 1/2}Sr{sub 1/2}TiO{sub 3} (BNT-BT-BST) perovskite solid solutions fabricated via the sol-gel technique are explored in this study. Dielectric and mechanical relaxation analyses are employed to investigate the ferroelectric and structural transitions of the samples. The electrocaloric properties of the samples were measured by thermodynamics Maxwell relations. The difference between the depolarization temperature (T{sub d}) and the maximum dielectric constant temperature (T{sub m}) was found to decrease with increasing BST content. Doping with BST stabilized the ferroelectric phase along with unifying the EC temperature changes (?T) to only negative values. The origin of the uniform negative ECE of BNT-BT-BST is discussed.

Uddin, Sarir [Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon (Hong Kong); Materials Research Laboratory, Institute of Physics and Electronics, University of Peshawar, Peshawar 25120 (Pakistan); Zheng, Guang-Ping, E-mail: mmzheng@polyu.edu.hk [Department of Mechanical Engineering, The Hong Kong Polytechnic University, Hung Hom, Kowloon (Hong Kong); School of Materials Science and Engineering, The University of Shanghai for Science and Technology, Shanghai (China); Iqbal, Yaseen [Materials Research Laboratory, Institute of Physics and Electronics, University of Peshawar, Peshawar 25120 (Pakistan); Ubic, Rick [Department of Materials Science and Engineering, Boise State University, Boise, Idaho 83725-2090 (United States); Yang, Junhe [School of Materials Science and Engineering, The University of Shanghai for Science and Technology, Shanghai (China)

2013-12-07T23:59:59.000Z

493

Enhanced quantum yield of yellow photoluminescence of Dy{sup 3+} ions in nonlinear optical Ba{sub 2}TiSi{sub 2}O{sub 8} nanocrystals formed in glass  

SciTech Connect (OSTI)

Transparent crystallized glasses consisting of nonlinear optical Ba{sub 2}TiSi{sub 2}O{sub 8} nanocrystals (diameter: {approx}100 nm) are prepared through the crystallization of 40BaO-20TiO{sub 2}-40SiO{sub 2}-0.5Dy{sub 2}O{sub 3} glass (in the molar ratio), and photoluminescence quantum yields of Dy{sup 3+} ions in the visible region are evaluated directly by using a photoluminescence spectrometer with an integrating sphere. The incorporation of Dy{sup 3+} ions into Ba{sub 2}TiSi{sub 2}O{sub 8} nanocrystals is confirmed from the X-ray diffraction analyses. The total quantum yields of the emissions at the bands of {sup 4}F{sub 9/2}{yields}{sup 6}H{sub 15/2} (blue: 484 nm), {sup 4}F{sub 9/2}{yields}{sup 6}H{sub 13/2} (yellow: 575 nm), and {sup 4}F{sub 9/2}{yields}{sup 6}H{sub 11/2} (red: 669 nm) in the crystallized glasses are {approx}15%, being about four times larger compared with the precursor glass. It is found that the intensity of yellow (575 nm) emissions and the branching ratio of the yellow (575 nm)/blue (484 nm) intensity ratio increase largely due to the crystallization. It is suggested from Judd-Ofelt analyses that the site symmetry of Dy{sup 3+} ions in the crystallized glasses is largely distorted, giving a large increase in the yellow emissions. It is proposed that Dy{sup 3+} ions substitute Ba{sup 2+} sites in Ba{sub 2}TiSi{sub 2}O{sub 8} nanocrystals. - Grapical abstract: This figure shows the photoluminescence spectra of Dy{sup 3+} ions in the range of 450-700 nm obtained in the quantum field measurements for the precursor BTS and crystallized (at 770 and 790 deg. C, for 30 min) glasses. The wavelength of the excitation light was 352 nm. By incorporating into Ba{sub 2}TiSi{sub 2}O{sub 8} nanocrystals, the emission intensity of the yellow band of Dy{sup 3+} ions is largely enhanced. This would give an impact in the science and technology of photoluminescence materials.

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

2009-02-15T23:59:59.000Z

494

Study of CP Symmetry Violation in the Charmonium-K*(892) Channel By a Complete Time Dependent Angular Analysis (BaBar Experiment)  

SciTech Connect (OSTI)

This thesis presents the full-angular time-dependent analysis of the vector-vector channel B{sub d}{sup 0} {yields} J/{psi}(K{sub S}{sup 0}{pi}{sup 0})*{sup 0}. After a review of the CP violation in the B meson system, the phenomenology of the charmonium-K*(892) channels is exposed. The method for the measurement of the transversity amplitudes of the B {yields} J/{psi}K*(892), based on a pseudo-likelihood method, is then exposed. The results from a 81.9 fb{sup -1} of collected data by the BABAR detector at the {Upsilon}(4S) resonance peak are |A{sub 0}|{sup 2} = 0.565 {+-} 0.011 {+-} 0.004, |A{sub {parallel}}|{sup 2} = 0.206 {+-} 0.016 {+-} 0.007, |A{sub {perpendicular}}|{sup 2} = 0.228 {+-} 0.016 {+-} 0.007, {delta}{sub {parallel}} = -2.766 {+-} 0.105 {+-} 0.040 and {delta}{sub {perpendicular}} = 2.935 {+-} 0.067 {+-} 0.040. Note that ({delta}{sub {parallel}}, {delta}{sub {perpendicular}}) {yields} (-{delta}{sub {parallel}}, {pi} - {delta}{sub {perpendicular}}) is also a solution. The strong phases {delta}{sub {parallel}} and {delta}{sub {perpendicular}} are at {approx}> 3{sigma} from {+-}{pi}, signing the presence of final state interactions and the breakdown of the factorization hypothesis. The forward-backward analysis of the K{pi} mass spectrum revealed the presence of a coherent S-wave interfering with the K*(892). It is the first evidence of this wave in the K{pi} system coming from a B meson. The particularity of the B{sub d}{sup 0} {yields} J/{psi}(K{sub S}{sup 0}{pi}{sup 0})*{sup 0} channel is to have a time-dependent but also an angular distribution which allows to measure sin 2{beta} but also cos2{beta}. The results from an unbinned maximum likelihood fit are sin 2{beta} = -0.10 {+-} 0.57 {+-} 0.14 and cos 2{beta} = 3.32{sub -0.96}{sup +0.76} {+-} 0.27 with the transversity amplitudes fixed to the values given above. The other solution for the strong phases flips the sign of cos 2{beta}. Theoretical considerations based on the s-quark helicity conservation favor the choice of the strong phases given above, leading to a positive sign for cos 2{beta}. The sign of cos 2{beta} is the one predicted by the Standard Model.

T'Jampens, Stephane; /Orsay

2006-09-18T23:59:59.000Z

495

The concentration of estradiol-17 gb sin bovine semen  

E-Print Network [OSTI]

. The Sertoli cell has been reported to be the testicular site of E synthesis by several other researchers (Huggins and Moulder, 1945; de Jong et al. , 1974; Dorrington and Armstrong, 1975; Dorrington et al. , 1978; Fritz, 1978). Fritz (1978) presents a...2, under the influence of FSH (figure 2). Armstrong et al. (1975) have shown that E synthesis from substrate testosterone in cultured rat Sertoli cells increases when FSH is added to the medium. Eiler and Graves (1977) claim that the testis...

Godfrey, Robert Wayne

1982-01-01T23:59:59.000Z

496

agujas sin sistema: Topics by E-print Network  

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

los Objetivos de?ltima actualizacin: 5 de abril de 2013 SISTEMA DE GARANTA DE CALIDAD DE LOS TTULOS DE LA Rey Juan Carlos, Universidad 393 DIA HORA AULA CURSO...

497

IS C O N SIN FUSION TECHNOLOGY INSTITUTE  

E-Print Network [OSTI]

OF WISCONSIN MADISON WISCONSIN A Resource Assessment and Extraction of Lunar 3He G.L. Kulcinski January 1992, Moscow. #12;A Resource Assessment and Extraction of Lunar 3He Gerald L. Kulcinski Wisconsin Center and 2. there was no known large 3He resource available prior to 1985.7 The situation with the D3He

498

IS C O N SIN FUSION TECHNOLOGY INSTITUTE  

E-Print Network [OSTI]

, results of the decay heat calculation are essential to examine the thermal re- sponse of the reactor OF WISCONSIN MADISON WISCONSIN Activation Analysis for the D-3He Reactor ARIES-III H.Y. Khater and M.E. Sawan Reactor ARIES-III H.Y. Khater and M.E. Sawan Fusion Technology Institute University of Wisconsin 1500

499

Land degradation and climate change: a sin of omission?  

E-Print Network [OSTI]

not solely responsible for the lack of awareness of the impacts of poor management practices, but we do play temperatures and the consequent increase in evaporative demand. During large rainfall events, land degradation a contributing role. At best, our increasing focus on climate change has an opportunity cost: there is less time

500

IS C O N SIN FUSION TECHNOLOGY INSTITUTE  

E-Print Network [OSTI]

.A. El-Guebaly, D.L. Henderson, P.P.H. Wilson, A.E. Abdou, ARIES Team April 2002 UWFDM-1178 Presented Wall Chamber L.A. El-Guebaly, D.L. Henderson, P.P.H. Wilson, A.E. Abdou, ARIES Team Fusion Technology