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1

Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations |  

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

update from Sr. Advisor Matt Rogers -- End of update from Sr. Advisor Matt Rogers -- End of Obligations Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations Addthis Description Matt Rogers, Senior Advisor to the Secretary for Recovery Act Implementation, shares his thoughts as the Recovery Act reaches a critical milestone -- the end of the 2010 fiscal year and the last day to obligation contract and grant funding under the Recovery Act. Speakers Matt Rogers Duration 2:26 Topic Energy Sources Recovery Act Funding Opportunities Loans Grants Credit Energy Department Video MATTHEW ROGERS: This week, we are obligating the last of our funds under the recovery act for contract and grant work, $32.7 billion of funds, $32.7 billion obligated and on the street. What this means is that we have now

2

Roger Levy  

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

Roger Levy Roger Levy Grid Integration Group Lawrence Berkeley National Laboratory 1 Cyclotron Road MS 90-3111 Berkeley CA 94720 (510) 486-6286 RLevy@lbl.gov This publications database is an ongoing project, and not all Division publications are represented here yet. Publications 2013 Levy, Roger, and Sila Kiliccote. Hawaiian Electric Company Demand Response Roadmap Project Final Report., 2013. Download: PDF (3.33 MB) 2011 Hoffman, Ron, Roger Levy, and Karen Herter. Technical Options to Address Cyber Security, Interoperability and Other Issues with ZigBee SEP., 2011. Download: PDF (824.39 KB) 2010 Goldman, Charles A., Michael Reid, Roger Levy, and Alison Silverstein. Coordination of Energy Efficiency and Demand Response. Berkeley: LBNL, 2010. Download: PDF (364.22 KB) 2004

3

Roger Levy  

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

(3.33 MB) 2011 Hoffman, Ron, Roger Levy, and Karen Herter. Technical Options to Address Cyber Security, Interoperability and Other Issues with ZigBee SEP., 2011. Download: PDF...

4

Matt Rogers | Department of Energy  

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

Matt Rogers Matt Rogers About Us Matt Rogers - McKinsey & Company Photo of Matt Rogers Matt Rogers is a Director in McKinsey & Company's San Francisco Office. He is focused on the role technology and innovation play in restructuring markets, especially in energy and capital intensive industries. Matt recently rejoined McKinsey after serving as the Senior Advisor to the Secretary of Energy for Recovery Act Implementation. In this role, he had responsibility for managing the Department of Energy's $35.2B in Recovery Act appropriations. The Department of Energy funded more than 5,000 projects through the Recovery Act with a total project value approaching $100B. These projects focused on delivering near term job creation and on accelerating US innovation in energy efficiency, efficient transportation,

5

Tom Rogers Director, Industrial Partnerships  

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

Tom Rogers, rogerstc@ornl.gov 865-241-2149 Tom Rogers, rogerstc@ornl.gov 865-241-2149 Tom Rogers Director, Industrial Partnerships and Economic Development Tom Rogers was named Director of Industrial Partnerships and Economic Development at the Oak Ridge National Laboratory in June, 2008. His responsibilities include directing engagements with industrial partners, forging new ORNL entrepreneurial support efforts, and leading a number of strategic initiatives such as the Carbon Fiber Composites Cluster and development of the Oak Ridge Science and Technology Park. Prior to joining ORNL, Tom was the founding President and CEO of Technology 2020, a national award-winning public-private partnership focused on a building a robust regional entrepreneurial support system. Tom has also served as the Executive Director of the Tennessee Technology

6

%QUEST FOR RECO .JS DI JSITION AUTHORITY  

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

RECO .JS DI JSITION AUTHORITY -- - - -- - , 8 - 3 - 1 -- - L-- I4nval Petroleum & Oil Shale Reserves (FE-47) To NATIONAL ARCHIVES & FSCORDS ADMlN',-P?TI3lJ 860 1 ADELPHI ROAD...

7

Opening Remarks … Matt Rogers  

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

Opening Remarks - Matt Rogers Opening Remarks - Matt Rogers Thank you for that introduction, and welcome to Washington-or to Arlington. I'm Matt Rogers. I lead the Recovery Act activities for the Department of Energy. This is a terrifically important event for the Department. The whole smart grid investment program is one of the signature pillars of the Recovery Act for the Department of Energy. I wanted to congratulate all of you. This was an unbelievably competitive process. While there are 100 successful folks in this room, there were 300 who were not successful. So in this program, as with many others, we turned down three out of four, or four out of five, of the applicants. On average we're turning down eighty percent of the people who apply. So a real congratulations to you and your teams for putting together very competitive

8

Rogers dilogarithm in integrable systems  

E-Print Network (OSTI)

We dicuss some curious aspects of the Rogers dilogarithm and the functional relations in integrable systems in two dimensions. This is for the proceedings of the XX1 Differential Geometry Methods in Theoretical Physics, Tianjin, China, 5-9 June 1992.

Kuniba, A

1992-01-01T23:59:59.000Z

9

%QUEST FOR RECO .JS DI JSITION AUTHORITY  

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

i i r rCI - - j %QUEST FOR RECO .JS DI JSITION AUTHORITY -- - - -- - , 8 / - 3 - 1 -- - L-- I4nval Petroleum & Oil Shale Reserves (FE-47) To NATIONAL ARCHIVES & FSCORDS ADMlN',-P?TI3lJ 860 1 ADELPHI ROAD COLLEGE PARK, MD 20740-609 1 1 FROM (Agency or establishment) U.S. Department of Energy 2. MAJOR SUBDIVISION -- Assistant Secretary for Fossil Energy (FE-I) Date-received r- /+--a/ NOTIFICATION TO AGENCY In accordance with the provisions of 44 U.S.C. 3303a, the disposition request, including amendments, is approved except for items that may be marked 'disposition not approved" or "withdrawn" in column 10. 3. AGENCY CERTIFICATION V I hereby certify that I am authorized to act for this agency in matters pertaining to the disposition of its records and that the records

10

Mr. L. Roger Hutson Roger Hutson is the President/CEO of HRM Resources LLC., a private firm specializing in  

E-Print Network (OSTI)

Mr. L. Roger Hutson Roger Hutson is the President/CEO of HRM Resources LLC., a private firm of the Board and as Chairman of the Finance and Audit Committee. Contact Information: Mr. L. Roger Hutson HRM

11

American Nuclear Society recognizes Roger W. Tilbrook  

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

American Nuclear Society recognizes Roger W. Tilbrook Director's Welcome Organization Achievements Highlights Fact Sheets, Brochures & Other Documents Multimedia Library About Nuclear Energy Nuclear Reactors Designed by Argonne Argonne's Nuclear Science and Technology Legacy Opportunities within NE Division Visit Argonne Work with Argonne Contact us For Employees Site Map Help Join us on Facebook Follow us on Twitter NE on Flickr Celebrating the 70th Anniversary of Chicago Pile 1 (CP-1) Argonne OutLoud on Nuclear Energy Argonne Energy Showcase 2012 Highlights Bookmark and Share American Nuclear Society recognizes Roger W. Tilbrook Roger W. Tilbrook, Argonne National Laboratory Nuclear Engineer Roger W. Tilbrook has been recognized for his decades of dedicated service to the American Nuclear Society.

12

A Computable Approach to Validation Roger Ghanem  

E-Print Network (OSTI)

Sequestration Nuclear safety Stochastic networks Uncertainty in agent-based models SmartGrid Urban Research SmartGrid at USC Roger Ghanem ()Uncertainty- PNNL- August 16 2010 46 / 53 #12;Panoramic View of My

13

Getting paid to break into things: Argonne's Roger Johnston on...  

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

break into "foolproof" systems. Speakers Roger Johnston Duration 4:06 Topic Security Cyber security Vulnerability assessment Video ID http:youtu.befrBBGJqkz9E Credit NBC...

14

THE FEDERAL ENERGY ADMINISTRATION By Roger Anders  

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

FEDERAL ENERGY FEDERAL ENERGY ADMINISTRATION By Roger Anders November 1980 U.S. Department of Energy Office of Management Office of the Executive Secretariat Office of History and Heritage Resources 1 Introduction For the three-year period between 1974 and 1977, the Federal Energy Administration implemented federal oil allocation and pricing regulations. An independent agency, the Federal Energy Administration was the successor of the Federal Energy Office, a short-term organization created to coordinate the government's response to the Arab oil embargo. By October 1977, when it became a part of the newly established Department of Energy, the Federal Energy

15

Roger D. Kornberg Polymerase, DNA, RNA, and Transcription  

Office of Scientific and Technical Information (OSTI)

Roger D. Kornberg Roger D. Kornberg Polymerase, DNA, RNA, and Transcription Resources with Additional Information Roger D. Kornberg Credit: Linda A. Cicero/ Stanford News Service Roger D. Kornberg was awarded the 2006 Nobel Prize in Chemistry "for his studies of the molecular basis of eukaryotic transcription". He determined 'how DNA's genetic blueprint is read and used to direct the process for protein manufacture. Kornberg carried out a significant part of the research leading to this prize at the Stanford Synchrotron Radiation Laboratory (SSRL), a Department of Energy (DOE)-supported research facility located at the Stanford Linear Accelerator Center (SLAC). Kornberg also carried out research at the Advanced Light Source, another DOE-funded synchrotron light source located at the Lawrence Berkeley National Laboratory. ...

16

Roger Mills County, Oklahoma: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Roger Mills County, Oklahoma: Energy Resources Roger Mills County, Oklahoma: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 35.616176°, -99.634135° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":35.616176,"lon":-99.634135,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

17

Rogers County, Oklahoma: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Rogers County, Oklahoma: Energy Resources Rogers County, Oklahoma: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 36.3898068°, -95.6457951° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":36.3898068,"lon":-95.6457951,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

18

Genome Sequence of the Ethene- and Vinyl Chloride-Oxidizing Actinomycete Nocardioides sp Strain JS614  

Science Conference Proceedings (OSTI)

Nocardioides sp. strain JS614 grows on ethene and vinyl chloride (VC) as sole carbon and energy sources and is of interest for bioremediation and biocatalysis. Sequencing of the complete genome of JS614 provides insight into the genetic basis of alkene oxidation, supports ongoing research into the physiology and biochemistry of growth on ethene and VC, and provides biomarkers to facilitate detection of VC/ethene oxidizers in the environment. This is the first genome sequence from the genus Nocardioides and the first genome of a VC/ethene-oxidizing bacterium.

Coleman, Nicholas V [University of Sydney, Australia; Wilson, Neil L [University of Sydney, Australia; Barry, Kerrie [U.S. Department of Energy, Joint Genome Institute; Bruce, David [Los Alamos National Laboratory (LANL); Copeland, A [U.S. Department of Energy, Joint Genome Institute; Dalin, Eileen [U.S. Department of Energy, Joint Genome Institute; Detter, J. Chris [U.S. Department of Energy, Joint Genome Institute; Glavina Del Rio, Tijana [U.S. Department of Energy, Joint Genome Institute; Goodwin, Lynne A. [Los Alamos National Laboratory (LANL); Hammon, Nancy [U.S. Department of Energy, Joint Genome Institute; Han, Shunsheng [Los Alamos National Laboratory (LANL); Hauser, Loren John [ORNL; Israni, Sanjay [U.S. Department of Energy, Joint Genome Institute; Kim, Edwin [U.S. Department of Energy, Joint Genome Institute; Kyrpides, Nikos C [U.S. Department of Energy, Joint Genome Institute; Land, Miriam L [ORNL; Lapidus, Alla L. [U.S. Department of Energy, Joint Genome Institute; Larimer, Frank W [ORNL; Lucas, Susan [U.S. Department of Energy, Joint Genome Institute; Pitluck, Sam [U.S. Department of Energy, Joint Genome Institute; Richardson, Paul [U.S. Department of Energy, Joint Genome Institute; Schmutz, Jeremy [Stanford University; Tapia, Roxanne [Los Alamos National Laboratory (LANL); Thompson, Sue [Los Alamos National Laboratory (LANL); Tice, Hope [U.S. Department of Energy, Joint Genome Institute; Spain, Jim C [Georgia Institute of Technology; Gossett, James G [Cornell University; Mattes, Timothy E [University of Iowa

2011-01-01T23:59:59.000Z

19

The Honorable Harold Rogers The Honorable Daniel K. Inouye  

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

Washington, DC 20585 (enter date here, centered) The Honorable Harold Rogers The Honorable Daniel K. Inouye Chairman, Committee on Appropriations Chairman, Committee on Appropriations U.S. House of Representatives U.S. Senate Washington, DC 20515 Washington, DC 20510 The Honorable Rodney P. Frelinghuysen The Honorable Dianne Feinstein Chairman, Subcommittee on Energy Chairman, Subcommittee on Energy and Water Development and Water Development Committee on Appropriations Committee on Appropriations U.S. House of Representatives U.S. Senate Washington, DC 20515 Washington, DC 20510 Subject: Notification of Pending Contract Award, or Public Announcement of Selected Applications for Negotiation of Financial Assistance Awards, or Pending Financial

20

^ <\^ P. Franzmi, B. Leontic, D. Rahm and N. Saraios JS^'^'^'^^ Brookhaven National Laboratory, Upton, New York litHwIUl  

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

r . . - r . . - Submitted to Phys. Rev. Letters January 1965 B-40 (BC) , ^ i r A Search for Massive Particles Produced in Interactions at 30 BeV* BNL 8751 ( ^ ^ <\^ P. Franzmi, B. Leontic, D. Rahm and N. Saraios JS^'^'^'^^ Brookhaven National Laboratory, Upton, New York litHwIUl .<^W<,^' o<^V ^' Schwartz sSr . . , ,<= ^^ <^ Columbia University, New York, New York We report here the results of a search for moderately stable negatively charged particles in the mass region of 2.5 - 5.0 BeV, produced in collisions of 30 BeV protons with tungsten nuclei at the Brookhaven A.G.S. The unitary symmetry model of strong interactions has received an impressive amount of experimental 2 confirmation. This in turn has stimulated a great deal of speculation concerning the origin of such a symmetry, leading to

Note: This page contains sample records for the topic "js rogers sr" 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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21

U-shaped curves in development: A PDP approach Timothy T. Rogers1  

E-Print Network (OSTI)

. McClelland2,3 1 MRC Cognition and Brain Sciences Unit, Cambridge, UK 2 Department of Psychology to Dr T.T. Rogers Dr David Rakison MRC Cognition & Brain Sciences Unit Department of Psychology 15 359062 Fax: 412 268-2798 Email: Email: tim.rogers@mrc-cbu.cam.ac.uk rakison@andrew.cmu.edu Dr. James L

McClelland, James L. "Jay"

22

DOE - Office of Legacy Management -- Rogers Iron Works Co - MO 10  

Office of Legacy Management (LM)

Rogers Iron Works Co - MO 10 Rogers Iron Works Co - MO 10 FUSRAP Considered Sites Site: ROGERS IRON WORKS CO. (MO.10 ) Elimination from consideration under FUSRAP Designated Name: Not Designated Alternate Name: Rogers Iron Co. MO.10-1 Location: Joplin , Missouri MO.10-1 Evaluation Year: 1990 MO.10-2 MO.10-3 Site Operations: Tested C-liner crushing methods. MO.10-1 Site Disposition: Eliminated - Potential for contamination considered remote based on limited quantities of material handled MO.10-3 MO.10-4 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium (Trace Amounts) MO.10-2 Radiological Survey(s): None Indicated Site Status: Elimination from consideration under FUSRAP Also see Documents Related to ROGERS IRON WORKS CO. MO.10-1 - National Lead Company of Ohio Analytical Data Sheet 9908;

23

Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations...  

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

Energy 101: Solar PV Sec. Chu Online Town Hall Energy 101: Cool Roofs Energy 101: Geothermal Heat Pumps Why Cool Roofs? Chu at COP-16: Building a Sustainable Energy Future...

24

Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations...  

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

Pledge? Conversation on the Future of the Wind Industry Science Lecture: Talking the Higgs Boson with Dr. Joseph Incandela Bill Gates and Deputy Secretary Poneman Discuss the...

25

Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations...  

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

Kill-a-Watt Competition at University of Central Florida Faces of the Recovery Act: Sun Catalytix Investing in Clean, Safe Nuclear Energy Secretary Chu Speaks at the 2010...

26

Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations...  

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

Security & Safety -Emergency Response & Procedures or Search Energy.gov Search Clear Filters All Videos ARPA-E 2011 Keynote: Dr. Arun Majumdar ARPA-E 2011 Keynote: Ray Mabus,...

27

Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations...  

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

--Commercial Heating & Cooling --Commercial Lighting --Solar Decathlon -Manufacturing Energy Sources -Renewables --Solar --Wind --Geothermal --Bioenergy -Fossil --Oil --Natural...

28

Microsoft PowerPoint - Roger Berglund.ppt  

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

KANTHAL APMT(tm) KANTHAL APMT(tm) material presentation Roger Berglund Sandvik Materials Technology Sandvik Materials Technology KANTHAL APMT(tm) material presentation Sandvik Group - a global leader Three business areas Invoicing MSEK Employees 19 078 32 621 15 328 15 296 14 429 8 246 31 Dec. 2009 Sandvik Tooling Sandvik Mining and Construction Sandvik Materials Technology Sandvik Materials Technology KANTHAL APMT(tm) material presentation SANDVIK GROUP Sandvik Tooling Tools and tooling systems for metal cutting, blanks and components. Sandvik Mining & Construction Equipment, tools and services for mining and construction. Sandvik Materials Technology Stainless steel and special alloy products for niche applications, resistance materials and steel belt process systems. Tube Strip Wire and Heating

29

SR Programs  

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

Savannah River Operations Office Art Programs banner SRS Strategic Plan 2011 - 2015 2010 Draft enterprise SRS Vision DOE-SR Workforce Restructuring Plan Fiscal Year 2013 DOE-SR...

30

Oxidative pathway for the biodegradation of nitrobenzene by Comamonas sp. strain JS765  

Science Conference Proceedings (OSTI)

Previous studies have shown that the biodegradation of nitrobenzene by Pseudomonas pseudoalcaligenes JS45 proceeds by the reduction of nitrobenzene through nitrosobenzene and hydroxylaminobenzene, followed by rearrangement to 2-aminophenol, which then undergoes meta ring cleavage. We report here the isolation of a Comamonas sp. that uses an oxidative pathway for the complete mineralization of nitrobenzene. The isolate, designated strain JS765, uses nitrobenzene as a sole source of carbon, nitrogen, and energy. Nitrobenzene-grown cells oxidized nitrobenzene, with the stoichiometric release of nitrite. Extracts of nitrobenzene-grown JS765 showed high levels of catechol 2,3-dioxygenase activity that were not abolished by heating the cell extracts to 60{degrees}C for 10 min. The ring cleavage product had an absorbance maximum at 375 nm, consistent with that of 2-hydroxymuconic semialdehyde. Both NAD-dependent dehydrogenase and NAD-indipendent hydrolase activities towards 2-hydroxymuconic semialdehyde were induced in extracts of nitrobenzene-grown cells. Catechol accumulated in the reaction mixture when cells preincubated with 3-chloracatechol were incubated with nitrobenzene. Conversion of nitrobenzene to catechol by induced cells in the presence of 3-chlorocatechol and {sup 13}O{sub 2} demonstrated the simultaneous incorporation of two atoms of oxygen, which indicated that the initial reaction was dioxygenation. Their results indicate that the catabolic pathway involves an initial dioxygenase attack on nitrobenzene with the release of nitrite and formation of catechol, which is subsequently degraded by a meta cleavage pathway. 37 refs., 4 figs., 4 tabs.

Nishino, S.F.; Spain, J.C. [Tyndall Air Force Base, FL (United States)

1995-06-01T23:59:59.000Z

32

Science Showcase: George F. Smoot and Roger D. Kornberg | OSTI, US Dept of  

Office of Scientific and Technical Information (OSTI)

Science Showcase: George F. Smoot and Roger D. Kornberg Science Showcase: George F. Smoot and Roger D. Kornberg Feature Archive George Smoot George F. Smoot won the 2006 Nobel Prize in Physics. George F. Smoot and Roger D. Kornberg have joined the growing list of Nobel Laureates associated with DOE. Smoot won the 2006 Nobel Prize in Physics for his work in blackbody and anisotropy of the cosmic microwave background radiation. Smoot is an astrophysicist at DOE's Lawrence Berkeley National Lab and a UC Berkeley physics professor. He shared the award with John C. Mather of NASA Goddard Space Flight Center. Roger D. Kornberg of Stanford University won the 2006 Nobel Prize in Chemistry for his studies of the molecular basis of eukaryotic transcription. A significant portion of Kornberg's research leading to this prize was performed at the Stanford Synchrotron Radiation Laboratory

33

SR0204  

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

Named DOE-SR Acting Manager Flag Ribbon Art AIKEN, SC; July 1 - Assistant Secretary for Environmental Management Jessie H. Roberson recently announced the designation of Jeffrey...

34

SR0305  

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

River Operations Office (DOE-SR) will host this month two public information workshops & seek public comments on the preservation of historical "Cold War" resources at SRS. As...

35

SR0301  

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

tests will be conducted during daylight hours. These flights have been coordinated with SRS security and safety officials and with the appropriate local authorities. -DOE- SR-03...

36

SR0102  

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

River Operations Office (SR) announces the availability of a Draft Supplemental Environmental Impact Statement (EIS) which evaluates alternatives for separating the...

37

SR0014  

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

River Operations Office (SR) has published for public review and comment the Draft Environmental Impact Statement (EIS) on the proposed closing of additional high-level waste...

38

SR9903  

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

1999 Media Contact: Julie Petersen (803) 725-2889 DOE-SR To Prepare Supplemental Environmental Impact Statement On High-Level Waste System Alternatives Flag Ribbon Art AIKEN,...

39

SR0105  

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

4, 2001 4, 2001 Media Contact: Julie Petersen (803) 725-2889 Doe Announces Availability Of Draft RFP On Salt Waste Processing Facility Flag Ribbon Art Aiken, SC; May 24, 2001 -- Today the Department of Energy (DOE) Savannah River Operations Office (SR) announced in the Commerce Business Daily the availability of the Draft Request for Proposals (RFP) for the acquisition of services to design, construct, and commission a facility to process the salt fraction of high-level radioactive waste currently stored in underground tanks at the Savannah River Site. DOE-SR is seeking industry and stakeholder comments on the draft RFP. The Draft Request for Proposals, DE-RP09-01SR22210, Salt Waste Processing Facility, is available at the DOE Public Reading Room at the Gregg-Graniteville Library at the University of South Carolina-Aiken campus in Aiken, South Carolina, or Internet-accessible at www.e-center.doe.gov.

40

Estimating the Remaining Useful Life of Residential Cory Welch and Brad Rogers, Navigant Consulting, Inc.  

E-Print Network (OSTI)

Estimating the Remaining Useful Life of Residential Appliances Cory Welch and Brad Rogers, Navigant. This paper describes a methodology for estimating the RUL of residential technologies using mortality data is that Weibull shape factors for many residential appliances were found to fall within a tight range

Note: This page contains sample records for the topic "js rogers sr" 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

Genome sequence of the flexirubin-pigmented soil bacterium Niabella soli type strain (JS13-8T)  

SciTech Connect

Niabella soli Weon et al. 2008 is a member of the Chitinophagaceae, a family within the class Sphingobacteriia that is poorly characterized at the genome level, thus far. N. soli strain JS13-8T is of interest for its ability to produce a variety of glycosyl hydrolases. The ge- nome of N. soli strain JS13-8T is only the second genome sequence of a type strain from the family Chitinophagaceae to be published, and the first one from the genus Niabella. Here we describe the features of this organism, together with the complete genome sequence and annotation. The 4,697,343 bp long chromosome with its 3,931 protein-coding and 49 RNA genes is a part of the Genomic Encyclopedia of Bacteria and Archaea project.

Anderson, Iain [U.S. Department of Energy, Joint Genome Institute; Munk, Christine [U.S. Department of Energy, Joint Genome Institute; Lapidus, Alla L. [U.S. Department of Energy, Joint Genome Institute; Nolan, Matt [U.S. Department of Energy, Joint Genome Institute; Lucas, Susan [U.S. Department of Energy, Joint Genome Institute; Tice, Hope [U.S. Department of Energy, Joint Genome Institute; Glavina Del Rio, Tijana [U.S. Department of Energy, Joint Genome Institute; Cheng, Jan-Fang [U.S. Department of Energy, Joint Genome Institute; Han, Cliff [Los Alamos National Laboratory (LANL); Tapia, Roxanne [Los Alamos National Laboratory (LANL); Goodwin, Lynne A. [Los Alamos National Laboratory (LANL); Pitluck, Sam [U.S. Department of Energy, Joint Genome Institute; Liolios, Konstantinos [U.S. Department of Energy, Joint Genome Institute; Mavromatis, K [U.S. Department of Energy, Joint Genome Institute; Pagani, Ioanna [U.S. Department of Energy, Joint Genome Institute; Mikhailova, Natalia [U.S. Department of Energy, Joint Genome Institute; Pati, Amrita [U.S. Department of Energy, Joint Genome Institute; Chen, Amy [U.S. Department of Energy, Joint Genome Institute; Palaniappan, Krishna [U.S. Department of Energy, Joint Genome Institute; Land, Miriam L [ORNL; Rohde, Manfred [HZI - Helmholtz Centre for Infection Research, Braunschweig, Germany; Tindall, Brian [DSMZ - German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, Germany; Goker, Markus [DSMZ - German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, Germany; Detter, J. Chris [U.S. Department of Energy, Joint Genome Institute; Woyke, Tanja [U.S. Department of Energy, Joint Genome Institute; Bristow, James [U.S. Department of Energy, Joint Genome Institute; Eisen, Jonathan [U.S. Department of Energy, Joint Genome Institute; Markowitz, Victor [U.S. Department of Energy, Joint Genome Institute; Hugenholtz, Philip [U.S. Department of Energy, Joint Genome Institute; Kyrpides, Nikos C [U.S. Department of Energy, Joint Genome Institute; Klenk, Hans-Peter [DSMZ - German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, Germany; Ivanova, N [U.S. Department of Energy, Joint Genome Institute

2012-01-01T23:59:59.000Z

42

SN 2009js AT THE CROSSROADS BETWEEN NORMAL AND SUBLUMINOUS TYPE IIP SUPERNOVAE: OPTICAL AND MID-INFRARED EVOLUTION  

SciTech Connect

We present a study of SN 2009js in NGC 918. Multi-band Kanata optical photometry covering the first {approx}120 days shows the source to be a Type IIP SN. Reddening is dominated by that due to our Galaxy. One-year-post-explosion photometry with the New Technology Telescope and a Subaru optical spectrum 16 days post-discovery both imply a good match with the well-studied subluminous SN 2005cs. The plateau-phase luminosity of SN 2009js and its plateau duration are more similar to the intermediate luminosity IIP SN 2008in. Thus, SN 2009js shares characteristics with both subluminous and intermediate luminosity supernovae (SNe). Its radioactive tail luminosity lies between SN 2005cs and SN 2008in, whereas its quasi-bolometric luminosity decline from peak to plateau (quantified by a newly defined parameter {Delta}logL, which measures adiabatic cooling following shock breakout) is much smaller than both the others'. We estimate the ejected mass of {sup 56}Ni to be low ({approx}0.007 M{sub Sun }). The SN explosion energy appears to have been small, similar to that of SN 2005cs. SN 2009js is the first subluminous SN IIP to be studied in the mid-infrared. It was serendipitously caught by Spitzer at very early times. In addition, it was detected by WISE 105 days later with a significant 4.6 {mu}m flux excess above the photosphere. The infrared excess luminosity relative to the photosphere is clearly smaller than that of SN 2004dj, which has been extensively studied in the mid-infrared. The excess may be tentatively assigned to heated dust with mass {approx}3 Multiplication-Sign 10{sup -5} M{sub Sun }, or to CO fundamental emission as a precursor to dust formation.

Gandhi, P. [Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency, 3-1-1 Yoshinodai, chuo-ku, Sagamihara, Kanagawa 252-5210 (Japan); Yamanaka, M.; Itoh, R. [Department of Physical Science, Hiroshima University, Kagamiyama 1-3-1, Higashi-Hiroshima 739-8526 (Japan); Tanaka, M. [National Astronomical Observatory, Mitaka, Tokyo (Japan); Nozawa, T.; Maeda, K.; Moriya, T. J. [Kavli Institute for the Physics and Mathematics of the Universe, University of Tokyo, Kashiwa (Japan); Kawabata, K. S. [Hiroshima Astrophysical Science Center, Hiroshima University, Higashi-Hiroshima, Hiroshima 739-8526 (Japan); Saviane, I. [European Southern Observatory, Alonso de Cordova 3107, Santiago 19 (Chile); Hattori, T. [Subaru Telescope, National Astronomical Observatory of Japan, Hilo, HI 96720 (United States); Sasada, M. [Department of Astronomy, Graduate School of Science, Kyoto University, Kyoto 606-8502 (Japan)

2013-04-20T23:59:59.000Z

43

SR 2000 News Releases  

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

0 News Releases 0 News Releases Nuclear Security Oversight Panel Visits SRS As Part of NNSA Tour - SR-00-01 DOE Security Czar To Visit SRS - SR-00-02 DOE To Present SRS Fiscal Year 2001 Budget - SR-00-03 DOE Releases Accident Investigation Report On FB-Line Workers' Plutonium Intake - SR-00-04 Environmental Management Science Program National Workshop - SR-00-05 DOE Cleanup Science on Display In Atlanta - SR-00-06 Environmental Cleanup Technology Conference Held - SR-00-07 Wackenhut Receives Award Fee - SR-00-08 WSRC Receives Award Fee - SR-00-09 DOE Hosts Radioactive Materials Transportation Workshop - SR-00-10 Energy Secretary To Visit SRS - SR-00-11 "Melt & Dilute" Selected To Treat DOE's Spent Nuclear Fuel At SRS - SR-00-12 Savannah River Operations Office Wins Best Practices Award - SR-00-13

44

SR 2005 News Releases  

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

Releases End State Vision at Savannah River Site Made Public SR-05-01 Note To Editors On MOX Ceremony SR-05-03 NNSA Breaks Ground On MOX Facility SR-05-04 Subcontract Awarded for...

45

SR 2004 News Releases  

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

Wackenhut Services Inc. -- SRS Award Fee Determination SR-03-04 Media Advisory: Tritium Celebration SR-04-04 NNSA and WSRC Recognition Progress in Key Tritium Facilities...

46

SR 2003 News Releases  

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

Cleanup Technologies - SR-03-03 NNSA Official Recognize Rapid Completion Of Key Tritium Processing Components - SR-03-04 DOE Hosts Public Workshops on Historical...

47

SR 2001 News Releases  

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

SR 2001 News Releases SR 2001 News Releases Department of Energy Extends Contract at SRS - R-01-002 Savannah River Site's Martin Luther King, Jr. Day Observance - SR-01-01 DOE Announces Availability of Draft SEIS on Salt Processing Alternatives - SR-01-02 Media Availability For WIPP Shipment - SR-01-03 Savannah River Site Sends First Shipment Of Transuranic Waste To WIPP - SR-01-04 DOE Announces Availability Of Draft RFP On Salt Waste Processing Facility - SR-01-05 DOE Announces Wackenhut Services, Inc. - SR-01-06 DOE & DOL Hold Public Meeting For Energy Employees Occupational Illness Compensation Program Act - SR-01-07 DOE Announces Plans For Offsite Treatment & Disposal Of SRS Waste - SR-01-08 DOE Announces Availability Of Final Supplemental EIS And Identifies Preferred Salt Processing Alternative - SR-01-09

48

SR0111  

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

4, 2001 4, 2001 Media Contact: Martha Merriweather (803) 725-2889 Dept. Of Energy Kicks Off Its 2001 Combined Federal Campaign Flag Ribbon Art AIKEN, SC - DOE employees at SRS begin their 2001 CFC with an Opening Program celebration on October 9. The Campaign runs through October 18, concluding with a Closing Ceremony on October 25. This year's campaign theme is "Caring for Community." The CFC is the government's way for federal employees to contribute to community agencies as well as agencies that work throughout the world. The SRS goal for this year is $101,000. Employee participation, which has steadily increased over the past years, is expected to reach near 100 percent. "Federal employees at SRS have a strong history of giving and I am confident this year's campaign will be successful," says DOE-SR Manager Greg Rudy.

49

SR0109  

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

0, 2001 0, 2001 Media Contact: Julie Petersen (803) 725-2889 DOE ANNOUNCES AVAILABILITY OF FINAL SUPPLEMENTAL EIS AND IDENTIFIES PREFERRED SALT PROCESSING ALTERNATIVE Flag Ribbon Art AIKEN, SC; July 20 -Today the Department of Energy (DOE) Savannah River Operations Office (SR) announced the availability of the Savannah River Site Salt Processing Alternatives Final Supplemental Environmental Impact Statement (EIS). Based on DOE's evaluation of research results and comments received on the Draft Supplemental EIS, the Final Supplemental EIS identifies the Caustic Side Solvent Extraction technology as the preferred alternative for separating the high-activity and low-activity salt waste from the liquid high-level radioactive waste now stored in underground tanks at the Savannah River Site (SRS).

50

SR0113?  

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

December 5, 2001 December 5, 2001 Media Contact: Bill Taylor (803) 725-2889 DOE Announces Availability Of Final RFP For SRS Salt Processing Facility Flag Ribbon Art Aiken, SC -- Today the Department of Energy (DOE) made available the Final Request for Proposals (RFP) for the acquisition of services to design, construct, and commission a facility to process the salt portion of high-level radioactive waste currently stored in underground tanks at the Savannah River Site (SRS). The Salt Waste Processing Facility Final RFP (DE-RP09-02SR22210) is available at the DOE Public Reading Room at the Gregg-Graniteville Library at the University of South Carolina-Aiken in Aiken, South Carolina, or via the Internet at http://e-center.doe.gov. The Final RFP identifies Caustic Side Solvent Extraction as the preferred technology for the cesium separation process, consistent with the Savannah River Site Salt Processing Alternatives Final Supplemental Environmental Impact Statement and the subsequent Record of Decision issued in October 2001.

51

Alistair Rogers  

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

Hoffman A, Koenig K, Newman L, Taghavi S, van der Lelie D (2012) Inoculation of hybrid poplar with the endophytic bacterium Enterobacter sp. 638 increases biomass but does not...

52

Roger Kilmer  

Science Conference Proceedings (OSTI)

... network of centers and local resources transforming manufacturers to compete ... handling of munitions, and unmanned land vehicle operations. ...

2013-05-29T23:59:59.000Z

53

Roger Bostelman  

Science Conference Proceedings (OSTI)

... Robots (LAGR); NIST Industrial Autonomous Vehicle Project; ... on robot cranes, arms and vehicles including an ... BS in Electrical Engineering from the ...

2010-10-05T23:59:59.000Z

54

Alistair Rogers  

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

Brookhaven National Laboratory, Lawrence Berkeley National Laboratory, University of Alaska Fairbanks and our partners at leading universities and other state and federal...

55

ROGER L. COPPLE ATTORNEY AT LAW FIRST NORTHERN PLAZA· P. O.  

Office of Legacy Management (LM)

ROGER ROGER L. COPPLE ATTORNEY AT LAW FIRST NORTHERN PLAZA· P. O. Box 40 SANTA FE, NEW MEXICO 87501 (505) 982-4004 September 10, 1982 Professional Land Surveying 1404 Second Street Santa Fe, New Mexico 87501 ATTN: Gary Dawson Re: Bechtel National, Inc./United States Department of Energy - Contract No. DE-AC05-810R20722-FUSRAP Dear Mr. Dawson: As required by the terms of Purchase Contract No. 14501-01/04- PC-19 which involves the captioned contract I have prepared and en- close the following items: .... 1. Surveyor's Certificate (Exhibit A): This is a modifica- tion of the standard certiiication form',. and it should be used in order that the Survey Plat may be filed for public record in Los Alamos and Santa Fe Counties in accordance with Section l4-8-l6(b), NMSA, 1978. When the plat is recorded, Section 47-1-46, NMSA, 1978, permits descrip- tion of the land by reference to the recorded plat.

56

2009 SR News Release  

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

Construction Start Of Salt Waste Processing Facility At SRS SR-09-01 SRS Hosts Regional Suppliers Outreach Event SR-09-02 DOE Announces 50 New Employees Hired under the Recovery...

57

Soft x-ray absorption and photoemission spectroscopy study of superoxide KO2 J.-S. Kang,* D. H. Kim, and J. H. Hwang  

E-Print Network (OSTI)

Soft x-ray absorption and photoemission spectroscopy study of superoxide KO2 J.-S. Kang,* D. H. Kim of superoxide KO2 was investigated by employing soft x-ray absorption spectros- copy XAS and core cooling, O2 - molecular bond axes seem to tilt to have a lower crystal monoclinic symme- try. By lowering

Min, Byung Il

58

Delamere-JS  

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

of particles from mid-level clouds to low-level clouds, and the occurrence of low-level ice clouds ("diamond dust"), which extend to the surface. This study addresses the...

59

2007 SR News Release  

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

7 News Releases DOE Seeks Public Input on Scope of Environmental Review for the Global Nuclear Energy Partnership SR-07-01 DOE Issues Draft Request for Proposal for SRS Liquid...

60

SR 2002 News Release  

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

2 News Releases SRS Environmental Management FY2003 Budget and Top-To-Bottom Review Presented at Friday Meeting - SR-02-01 NNSA Releases Accident Investigation Report On TEF...

Note: This page contains sample records for the topic "js rogers sr" 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

2010sr26.doc  

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

more donations came in. We set a new goal and with in a day or two it was broken," said Sandy Johnson, DOE-SR Deputy Manager. "I am always amazed at the generosity of our...

62

Analysis of wind shear models and trends in different terrains M.L. Ray *, A.L. Rogers, and J.G. McGowan  

E-Print Network (OSTI)

by the Energy & Environment Research Center at the University of North Dakota [1]. Each site has wind speed data.F., J.G. McGowan, and A.L. Rogers. Wind Energy Explained: Theory, Design and Application. John Wiley." Proceedings of British Wind Energy Association Workshop on the Influence of Trees on Wind Farm Energy Yields

Massachusetts at Amherst, University of

63

SR0917.docx  

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

(803) 952-7697 Monday, August 10, 2009 (803) 952-7697 Monday, August 10, 2009 james-r.giusti@srs.gov DOE Hosts Public Workshop On Energy Park Concept at the Savannah River Site Aiken, SC (Aug. 8) -- The Department of Energy's (DOE) Savannah River Operations Office (SR) will sponsor a four-hour workshop on the concept of an energy park at the Savannah River Site on August 18, 2009, at the North Augusta Municipal Center, 100

64

Remedial investigation work plan for Chestnut Ridge Operable Unit 4 (Rogers Quarry/Lower McCoy Branch) at the Oak Ridge Y-12 Plant, Oak Ridge, Tennessee  

SciTech Connect

The Oak Ridge Y-12 Plant includes - 800 acres near the northeast comer of the reservation and adjacent to the city of Oak Ridge (Fig. 1-1). The plant is a manufacturing and developmental engineering facility that produced components for various nuclear weapons systems and provides engineering support to other Energy Systems facilities. More than 200 contaminated sites have been identified at the Y-12 Plant that resulted from past waste management practices. Many of the sites have operable units (OUs) based on priority and on investigative and remediation requirements. This Remedial Investigation RI work plan specifically addresses Chestnut Ridge OU 4. Chestnut Ridge OU 4 consists of Rogers Quarry and Lower McCoy Branch (MCB). Rogers Quarry, which is also known as Old Rogers Quarry or Bethel Valley Quarry was used for quarrying from the late 1940s or early 1950s until about 1960. Since that time, the quarry has been used for disposal of coal ash and materials from Y-12 production operations, including classified materials. Disposal of coal ash ended in July 1993. An RI is being conducted at this site in response to CERCLA regulations. The overall objectives of the RI are to collect data necessary to evaluate the nature and extent of contaminants of concern, support an Ecological Risk Assessment and a Human Health Risk Assessment, support the evaluation of remedial alternatives, and ultimately develop a Record of Decision for the site. The purpose of this work plan is to outline RI activities necessary to define the nature and extent of suspected contaminants at Chestnut Ridge OU 4. Potential migration pathways also will be investigated. Data collected during the RI will be used to evaluate the risk posed to human health and the environment by OU 4.

Not Available

1993-09-01T23:59:59.000Z

65

Alistair Rogers | BNL  

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

A., Koenig, K., Newman, L., Taghavi, S., and Van Der Lelie, D. Inoculation of hybrid poplar with the endophytic bacterium Enterobacter sp. 638 increases biomass but does not...

66

Kenneth C. Rogers  

Science Conference Proceedings (OSTI)

... and Technology and is a member of numerous professional societies, including the American Physical Society and the American Nuclear Society ...

2010-10-05T23:59:59.000Z

67

Rogers Labs, Inc.  

Science Conference Proceedings (OSTI)

... Generic standards - Emission standard for residential, commercial and ... Issue 2 (February 2011) Spectrum Management and Telecommunications ...

2013-08-23T23:59:59.000Z

68

SR-09-01 _SWPF_.doc  

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

from the low-activity salt waste, using proven separation technologies of filtration and centrifugal contactors. -MORE- SR-08-01 Savannah River Operations Office SWPF CONSTRUCTION...

69

SR????  

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

November 30, U.S. Department of Energy Assistant Secretary for Environmental Management James Rispoli will speak at a ceremony marking the completion of T Area Closure at...

70

SR????  

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

separate spent nuclear fuel into reusable and waste components and then manufacture new nuclear fast reactor fuel using the reusable components; andor an advanced recycling...

71

Citrus County Extension Office From I-75, take Exit # 329 (old # 66), SR 44 and go West on SR 44 toward Inverness/Crystal River (approx. 17 miles). Follow SR 44  

E-Print Network (OSTI)

on SR 44 toward Inverness/Crystal River (approx. 17 miles). Follow SR 44 through Inverness to traffic

Watson, Craig A.

72

Premelting Dynamics J.S. Wettlaufer1  

E-Print Network (OSTI)

(17), 177403 (2004). 25. E. U. Donev, R. Lopez, L. C. Feldman, and R. F. Haglund, "Confocal Raman microscopy­706 (2009). 26. J. Y. Suh, E. U. Donev, R. Lopez, L. C. Feldman, and R. F. Haglund, "Modulated optical

Worster, M. Grae

73

Curriculum Vita Michael "Bodhi" Rogers  

E-Print Network (OSTI)

. Netherlands Canada 9 Rep. of Korea Nigeria Colombia France Angola 10 UK Sudan Azerbaijan UK Iraq 11 Singapore Azerbaijan Malaysia Spain Libya 12 Italy Venezuela Brazil Singapore Kazakhstan 13 Australia Norway Belgium Canada Kuwait 14 Malaysia Iran Trinidad and Tobago Thailand Azerbaijan 15 Spain Algeria France Belgium

Rogers, Michael

74

Roger Johnston | Argonne National Laboratory  

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

research Ecology Environmental modeling tools Environmental policy & planning Geochemistry Integrated environmental assessments Land reclamation Water quality Security Arms...

75

Sr$sup 90$ MONITORING AT THE SAVANNAH RIVER PLANT  

SciTech Connect

Radioassays of milk, soil, grass, and other material located near the Savannah River Plant showed no detectable Sr/sup 90/ due to plant wastes. These assays indicated that the Sr/sup 90/ found in this geographical area (25-mile radius of SRP) was nuclear weapons debris. Sr/sup 90/ was separated from milk by absorption on cation exchange resin. An extraction technique was used in assaying Sr/sup 90/ in all types of samples. Cs/sup 137//Sr/sup 90/ ratios were found to be constant in soil samples. (auth)

Butler, F.E.

1960-05-01T23:59:59.000Z

76

Role of SrMoO{sub 4} in Sr{sub 2}MgMoO{sub 6} synthesis  

Science Conference Proceedings (OSTI)

Here we investigate the elemental and phase compositions during the solid-state synthesis of the promising SOFC-anode material, Sr{sub 2}MgMoO{sub 6}, and demonstrate that molybdenum does not notably evaporate under the normal synthesis conditions with temperatures up to 1200 {sup o}C due to the formation of SrMoO{sub 4} as an intermediate product at low temperatures, below 600 {sup o}C. However, partial decomposition of the Sr{sub 2}MgMoO{sub 6} phase becomes evident at the higher temperatures ({approx}1500 {sup o}C). The effect of SrMoO{sub 4} on the electrical conductivity of Sr{sub 2}MgMoO{sub 6} is evaluated by preparing a series of Sr{sub 2}MgMoO{sub 6} samples with different amounts of additional SrMoO{sub 4}. Under the reducing operation conditions of an SOFC anode the insulating SrMoO{sub 4} phase is apparently reduced to the highly conductive SrMoO{sub 3} phase. Percolation takes place with 20-30 wt% of SrMoO{sub 4} in a Sr{sub 2}MgMoO{sub 6} matrix, with a notable increase in electrical conductivity after reduction. Conductivity values of 14, 60 and 160 S/cm are determined at 800 {sup o}C in 5% H{sub 2}/Ar for the Sr{sub 2}MgMoO{sub 6} samples with 30, 40 and 50 wt% of added SrMoO{sub 4}, respectively. -- Graphical abstract: SrMoO{sub 4} is formed at low temperatures during the synthesis of Sr{sub 2}MgMoO{sub 6}, which prevents the volatilization of Mo from typical precursor mixtures of this promising SOFC anode material. SrMoO{sub 4} is insulating and it is often found as an impurity in Sr{sub 2}MgMoO{sub 6} samples. It is however readily reduced to highly conducting SrMoO{sub 3}. Composites of Sr{sub 2}MgMoO{sub 6} and SrMoO{sub 3} show increased electrical conductivities compared to pure Sr{sub 2}MgMoO{sub 6} under the reductive operation conditions of an SOFC anode. Display Omitted Highlights: {yields} Sr{sub 2}MgMoO{sub 6} is a promising SOFC anode material. {yields} During the Sr{sub 2}MgMoO{sub 6} synthesis SrMoO{sub 4} is formed at low temperatures. {yields} Formation of SrMoO{sub 4} effectively prevents volatilization of Mo at high temperatures. {yields} Insulating SrMoO{sub 4} reduces to highly conductive SrMoO{sub 3} under SOFC-anode conditions. {yields} Composites of Sr{sub 2}MgMoO{sub 6} and SrMoO{sub 3} show high electrical conductivities.

Vasala, S.; Yamauchi, H. [Laboratory of Inorganic Chemistry, Department of Chemistry, School of Chemical Technology, Aalto University, P.O. Box 16100, FI-00076 Aalto (Finland); Karppinen, M., E-mail: maarit.karppinen@aalto.f [Laboratory of Inorganic Chemistry, Department of Chemistry, School of Chemical Technology, Aalto University, P.O. Box 16100, FI-00076 Aalto (Finland)

2011-05-15T23:59:59.000Z

77

South America PAR SR Solar Model from INPE and LABSOLAR  

Open Energy Info (EERE)

for Space Research) and the ARCVIEW software were used to produce the dataset and SHAPE files. The assessment of reliability levels of the BRASIL-SR model were...

78

Rb-Sr Geochronologic Investigation Of Precambrian Samples From...  

Open Energy Info (EERE)

Of Precambrian Samples From Deep Geothermal Drill Holes, Fenton Hill, New Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Rb-Sr...

79

Review of the APS SR RF systems.  

DOE Green Energy (OSTI)

The Advanced Photon Source (APS) is a 7-GeV full energy storage ring (SR) for generating synchrotron radiation with an injector. The storage ring cavities consist of four groups of four single cells powered by up to four 1-MW klystrons for up to 300-mA operation. A review of the operation of the rf system as well as rf-related beam dynamics is presented. This review includes rf power distribution, low-level feedback, control law, beam loading, beam instabilities, higher-order modes, and beam-induced multipactoring.

Song, J.J.; Cours, A.; Grelick, A.; Harkay, K.; Horan, D.; Kang, Y.W.; Kustom, R.L.; Nassiri, A.; Pile, G.; Smith, T.L.

1998-03-31T23:59:59.000Z

80

Summary Special Report: OAS-SR-06-01 | Department of Energy  

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

OAS-SR-06-01 Summary Special Report: OAS-SR-06-01 October 7, 2005 Management of the Clean Cities Conference Summary Special Report: OAS-SR-06-01 More Documents & Publications...

Note: This page contains sample records for the topic "js rogers sr" 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

CIRES/GSD Professional Research Assistant Sr. HPC Systems Engineer  

E-Print Network (OSTI)

forecasts. ESRL/GSD is a part of NOAA's Research and Development High Performance Computing Systems Program of GSD is looking for a temporary (12 mo) full-time Sr. High Performance Computing (HPC) System Engineer to support multiple state-of-the-art High Performance Computers in Boulder, CO and Fairmont, WV. The Sr

Colorado at Boulder, University of

82

The mechanics of SR protein phosphorylation by the splicing kinases SRPK1 and Clk/Sty  

E-Print Network (OSTI)

SAN DIEGO The Mechanics of SR protein Phosphorylation by theTHE DISSERTATION The Mechanics of SR protein Phosphorylationproject would have altered mechanics with SRPK1 catalysis

Hagopian, Jonathan Charles

2008-01-01T23:59:59.000Z

83

South America Global Horizontal SR Solar Model from INPE and...  

Open Energy Info (EERE)

for Space Research) and the ARCVIEW software were used to produce the dataset and SHAPE files. The assessment of reliability levels of the BRASIL-SR model were performed...

84

South America Diffuse SR Solar Model from INPE and LABSOLAR  

Open Energy Info (EERE)

for Space Research) and the ARCVIEW software were used to produce the dataset and SHAPE files.
The assessment of reliability levels of the BRASIL-SR model were performed...

85

South America Diffuse SR Solar Model from INPE and LABSOLAR ...  

Open Energy Info (EERE)

for Space Research) and the ARCVIEW software were used to produce the dataset and SHAPE files.The assessment of reliability levels of the BRASIL-SR model were performed...

86

2010 Annual Workforce Analysis and Staffing Plan Report - SR  

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

OOEF Jl2$U OOEF Jl2$U United States Government Department of Energy (DOE) memorandum Savannah River Operations Office (SR) DATE: REPLY TO ATTN OF: SUBJECT: JAN 2 6 2011 MGR (Moody/(803) 952-9468) Annual Workforce Analysis and Staffing Plan Report for Calendar Year 2010- 10-NA SC-09 TO: Karen L. Boardman, Chairperson, Federal Technical Capability Panel The Calendar Year 2010 DOE-SR Workforce Analysis and Staffing Plan Report is attached. This analysis was conducted in conjunction with the development of the DOE-SR 5-Year Workforce Management Plan. If you have any questions, please contact me or have your staff contact Mr. Edgar Gates at 803-952-9227 or Mr. Lee Moody at 803-952-5978. MGR:LHM:bcp OHCM-11-1053 Attachment: DOE-SR Annual Workforce Analysis and Staffing Plan Report

87

2012 Annual Workforce Analysis and Staffing Plan Report - SR  

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

lllS.81 lllS.81 United States Government Department of Energy (DOE\ memorandum Savannah River Operations Office (SR) DATE: REPLY TO ATINOF: FEB 132811: MGR (Moody/(803) 952-9468) SUBJECT: Annual Workforce Analysis and Staffing Plan Report for Calendar Year 2012 To: Karen L. Boardman, Chairperson, Federal Technical Capability Panel The Calendar Year 2012 DOE-SR Workforce Analysis and Staffing Plan Report is attached. This analysis was conducted in conjunction with the development of the DOE-SR 5-Y ear Workforce Management Plan. If you have any questions, please contact me or have your staff contact Mr. Edgar Gates at 803-952-9227 or Mrs. Deanna Yates at 803-952-6925. MGR:EG:lec OHCM-13-0025 Attachment: DOE-SR Annual Workforce Analysis and Staffing Plan Report

88

2011 Annual Workforce Analysis and Staffing Plan Report - SR  

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

# # United States Government Department of Energy (DOE) memorandum Savannah River Operations Office (SR) DATE: REPLY TO ATTN OF: SUBJECT: JAN 2 O 2012 MGR (Moody/(803) 952-9468) Annual Workforce Analysis and Staffing Plan Report for Calendar Year 2011 - 10-NA SC-09 TO: Karen L. Boardman, Chairperson, Federal Technical Capability Panel The Calendar Year 2011 DOE-SR Workforce Analysis and Staffing Plan Report is attached. This analysis was conducted in conjunction with the development of the DOE-SR 5-Year Workforce Management Plan. If you have any questions, please contact me or have your staff contact Mr. Edgar Gates at 803-952-9227 or Mr. Lee Moody at 803-952-5978. MGR:EG:bcp OHCM-12-1035 Attachment: DOE-SR Annual Workforce Analysis and Staffing Plan Report

89

Microsoft Word - 2006FactSR105.doc  

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

Advanced optical sensor for monitoring and control of multiple gas and turbine-blade properties 03-01-SR105 FACT SHEET I. PROJECT PARTICIPANTS Professor Scott Sanders, University...

90

VBA-0083- In the Matter of S.R. Davis  

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

This Decision considers an Appeal of an Initial Agency Decision (IAD) issued on April 21, 2004, involving a complaint filed by S.R. Davis (also referred to as the Complainant) under the Department...

91

VBH-0083- In the Matter of S.R. Davis  

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

S.R. Davis (the Employee) filed a complaint against her former employer, Fluor Fernald, Inc. (the Contractor) under the Department of Energy (DOE) Contractor Employee Protection Program, 10 C.F.R....

92

Microsoft Word - 2006FactSR113.doc  

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

SR113 Heat Transfer from Rotating Blade Platforms With and Without Film Cooling FACT SHEET I. PROJECT PARTICIPANTS Professor J.C. Han, Texas A&M University, College Station, Texas,...

93

Biocompatibility and Biocorrosion of Mg-Sr Alloy as Biodegradable ...  

Science Conference Proceedings (OSTI)

A tubular Mg-0.5Sr stent sample was implanted into the right femoral artery of a dog. No thrombosis effect was observed after 3 weeks of implantation.

94

Figure SR2. Net Imports as Percentage of Domestic Consumption ...  

U.S. Energy Information Administration (EIA)

Figure SR2 of the U.S. Natural Gas Imports & Exports: 2009. This report provides an overview of U.S. international natural gas trade in 2009. Natural gas import and ...

95

U. S. Department of Energy Savannah River Operations Office - DOE-SR News  

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

Releases Releases DOE-SR News Releases GROUTING TO BEGIN TOMORROW ON TWO ADDITIONAL SRS WASTE TANKS SR-2013-08 Adobe Acrobat PDF PARSONS' SALT WASTE PROCESSING FACILITY PROJECT EARNS DOE VOLUNTARY PROTECTION PROGRAM MERIT AWARD SR-2013-07 Adobe Acrobat PDF Public Comment Sought for Savannah River Site Workforce Restructuring Plan SR-2013-06 Adobe Acrobat PDF Savannah River Site Citizens Advisory Board Seeking New Members SR-2013-05 Adobe Acrobat PDF Salt Waste Processing Facility: New Leadership SR-2013-04 Adobe Acrobat PDF Savannah River Site Exceeds Waste Shipment Goals SR-2013-03 Adobe Acrobat PDF Savannah River Operations Office Honors Federal Manager of the Year SR-2013-02 Adobe Acrobat PDF SRS Advisory Board to Hold Augusta Public Meeting March 25-26 SR-2013-01 Adobe Acrobat PDF

96

Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep  

Open Energy Info (EERE)

Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Geothermal Drill Holes, Fenton Hill, New Mexico Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: Rb-Sr Geochronologic Investigation Of Precambrian Samples From Deep Geothermal Drill Holes, Fenton Hill, New Mexico Details Activities (2) Areas (1) Regions (0) Abstract: Analyses of twenty-six gneissic whole rocks from the depth range 732-2588 m in drill hole GT-2 yield a 1.62 ± 0.04 b.y. isochron age with initial 86Sr/86Sr (Ro) = 0.7067 ± 0.0014; this age is in agreement with radiometric ages reported for rocks elsewhere in north-central New Mexico. A preliminary isochron age of 1.92 ± 0.18 b.y. with Ro = 7014 ± 0.0025 from the nearby drill hole GT-1 is defined by eight samples. Because these

97

Laser system for secondary cooling of {sup 87}Sr atoms  

SciTech Connect

A laser system with a narrow generation line for secondary laser cooling of {sup 87}Sr atoms has been developed and investigated. It is planned to use ultracold {sup 87}Sr atoms loaded in an optical lattice in an optical frequency standard. To this end, a 689-nm semiconductor laser has been stabilised using an external reference ultrastable cavity with vibrational and temperature compensation near the critical point. The lasing spectral width was 80 Hz (averaging time 40 ms), and the frequency drift was at a level of 0.3 Hz s{sup -1}. Comparison of two independent laser systems yielded a minimum Allan deviation: 2 Multiplication-Sign 10{sup -14} for 300-s averaging. It is shown that this system satisfies all requirements necessary for secondary cooling of 87Sr atoms using the spectrally narrow {sup 1}S{sub 0} - {sup 3}P{sub 1} transition ({lambda} = 689 nm). (cooling of atoms)

Khabarova, K Yu; Slyusarev, S N; Strelkin, S A; Belotelov, G S; Kostin, A S; Pal'chikov, Vitaly G; Kolachevsky, Nikolai N

2012-11-30T23:59:59.000Z

98

Microsoft Word - OAS-SR-10-04 - WEB VERSION  

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

ONLY ONLY OFFICIAL USE ONLY eeOFF Special Inquiry U.S. Department of Energy Office of Inspector General Office of Audit Services Review of Allegations Regarding Hiring and Contracting in the Office of Energy Efficiency and Renewable Energy OAS-SR-10-04 September 2010 Department of Energy Washington, DC 20585 September 22, 2010 MEMORANDUM FOR THE SECRETARY FROM: Gregory H. Friedman Inspector General SUBJECT: INFORMATION: Special Inquiry: "Review of Allegations Regarding Hiring and Contracting in the Office of Energy Efficiency and Renewable Energy" Report Number: OAS-SR-10-04 INTRODUCTION In April 2010, the Office of Inspector General (OIG) began receiving allegations concerning

99

Precise Measurement of Strontium-82 Radioactivity in the Sr-Rb...  

Office of Science (SC) Website

at the imaging facility by extracting it from an 82Sr-82Rb generator. Much as a battery is used to store electricity, the radioactive 82Sr with its long 25.35 days half-life...

100

Molecular beam epitaxy of SrTiO3 with a growth window  

E-Print Network (OSTI)

Estimated MBE growth window for SrTiO 3 in conventional MBEregion shows the growth window for stoichiometric films with4 (color online): Growth window for stoichiometric SrTiO 3

Stemmer, Susanne

2009-01-01T23:59:59.000Z

Note: This page contains sample records for the topic "js rogers sr" 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

MEP Program Review Roger Kilmer, Director  

Science Conference Proceedings (OSTI)

... Assistance; SF-424A Budget Information Non-Constructions; ... 424B Assurances Non-construction; CD-511 ... out, including a schedule of measureable ...

2013-08-28T23:59:59.000Z

102

MEP Program Review Roger Kilmer, Director  

Science Conference Proceedings (OSTI)

... sized manufacturers in: (1) reducing energy usage, greenhouse gas emissions ... a cognizant Federal audit agency, provide a statement to this effect. ...

2013-05-03T23:59:59.000Z

103

MEP Program Review Roger Kilmer, Director  

Science Conference Proceedings (OSTI)

... NIST Competition Analysis: NIST competitions in 2010 (e-CAR and t-CAR) and multi-agency awards in 2012 (Jobs Accelerator) and 2013 ...

2013-10-22T23:59:59.000Z

104

SLAC National Accelerator Laboratory - Roger Blandford Receives...  

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

Institute for Particle Astrophysics and Cosmology, which is jointly run by Stanford and SLAC National Accelerator Laboratory, and is a professor of particle physics and...

105

MEP Program Review Roger Kilmer, Director  

Science Conference Proceedings (OSTI)

... Reporting & Audit Requirements; Agency Contacts. 3. ... reducing energy usage, greenhouse gas emissions, and environmental waste to improve ...

2013-08-14T23:59:59.000Z

106

Matt Rogers on AES Energy Storage  

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

The Department of Energy and AES Energy Storage recently agreed to a $17.1M conditional loan guarantee commitment. This project will develop the first battery-based energy storage system to provide...

107

Faces of the Recovery Act: Sun Catalytix | Department of Energy  

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

White House Science Fair Recap Energy 101: Home Energy Assessment Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations The Recovery Act is "Lighting Up" the...

108

Energy 101: Solar PV | Department of Energy  

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

Weatherizing Wilkes-Barre White House Science Fair Recap Energy 101: Home Energy Assessment Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations The Recovery Act...

109

The Weatherization Training program at Pennsylvania College ...  

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

White House Science Fair Recap Energy 101: Home Energy Assessment Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations The Recovery Act is "Lighting Up" the...

110

How ARPA-e is "Winning the Future" | Department of Energy  

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

White House Science Fair Recap Energy 101: Home Energy Assessment Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations The Recovery Act is "Lighting Up" the...

111

Linac Coherent Light Source Overview | Department of Energy  

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

Weatherizing Wilkes-Barre White House Science Fair Recap Energy 101: Home Energy Assessment Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations The Recovery Act...

112

Energy 101: Concentrating Solar Power | Department of Energy  

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

Weatherizing Wilkes-Barre White House Science Fair Recap Energy 101: Home Energy Assessment Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations The Recovery Act...

113

DOE-SR Makes a Difference Through Donation to Educational Center |  

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

DOE-SR Makes a Difference Through Donation to Educational Center DOE-SR Makes a Difference Through Donation to Educational Center DOE-SR Makes a Difference Through Donation to Educational Center February 24, 2011 - 12:00pm Addthis Media Contact Amy Caver, DOE (803) 952-7697 amy.caver@srs.gov Aiken, SC -- The Department of Energy-Savannah River Operations Office (DOE-SR) is making a real impact to increase learning resources for an educational nonprofit organization through its Computers for Learning (CFL) program. Just recently, DOE-SR donated 20 computer systems to the Darden Enlightenment Center located in Farmville, North Carolina. "We at DOE-SR are extremely pleased to be able to make a positive impact in communities where the needs of at-risk youth or senior citizens is great," said DOE-SR Manager Dave Moody. "The donation of these

114

U. S. Department of Energy Savannah River Operations Office - DOE-SR News  

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

Release Archive Release Archive DOE-SR News Release Archive 2012 News Releases Savannah River Site Reaches Significant Milestone with Waste Tank Closure SR-2012-06 Adobe Acrobat PDF DOE to Extend Savannah River Nuclear Solutions Contract at Savannah River Site to September 2016 SR-2012-05 Adobe Acrobat PDF Savannah River Site Federal Employees Volunteer for United Way Campaign SR-2012-04 Adobe Acrobat PDF Installation of Six Large Process Tanks Mark Big Step in Construction of Critical Waste Cleanup Facility at SRS SR-2012-03 Adobe Acrobat PDF Grouting Begins on First SRS Waste Tanks Since 1997 SR-2012-02 Adobe Acrobat PDF SRS Marks Successful Operational Startup of New Biomass Cogeneration Facility SR-2012-01 Adobe Acrobat PDF 2011 News Releases Recovery Act Funds Test Reactor Dome Removal in Historic D&D Project

115

DOE-SR Makes a Difference Through Donation to Educational Center |  

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

DOE-SR Makes a Difference Through Donation to Educational Center DOE-SR Makes a Difference Through Donation to Educational Center DOE-SR Makes a Difference Through Donation to Educational Center February 24, 2011 - 12:00pm Addthis Media Contact Amy Caver, DOE (803) 952-7697 amy.caver@srs.gov Aiken, SC -- The Department of Energy-Savannah River Operations Office (DOE-SR) is making a real impact to increase learning resources for an educational nonprofit organization through its Computers for Learning (CFL) program. Just recently, DOE-SR donated 20 computer systems to the Darden Enlightenment Center located in Farmville, North Carolina. "We at DOE-SR are extremely pleased to be able to make a positive impact in communities where the needs of at-risk youth or senior citizens is great," said DOE-SR Manager Dave Moody. "The donation of these

116

Microsoft Word - 2006FactSR118.doc  

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

2-01-SR118 - Degradation of Thermal Barrier Coatings with Syngas Combustion: 2-01-SR118 - Degradation of Thermal Barrier Coatings with Syngas Combustion: Testing by HADES and Characterization by Advanced Electron Microscopy Revision A 1 October 2006 FACT SHEET I. PROJECT PARTICIPANTS University of Central Florida, Orlando, FL Florida Turbines Technologies, Inc., Jupiter, FL II. PROJECT DESCRIPTION A. Objective(s) - To provide performance data and fundamental understanding of degradation for thermal barrier coatings (TBCs) in natural gas (NG) and syngas (SG) combustion environment by * Identify degradation (e.g., hot corrosion) mechanisms (e.g., YSZ destabilization, deposit penetration and reaction, etc.). * Generate critical materials data (e.g., solubility, eutectic compositions and degradation kinetics for realistic NG and SG combustion turbine environment).

117

MHK Projects/SR 01 | Open Energy Information  

Open Energy Info (EERE)

SR 01 SR 01 < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.5519,"lon":-73.5152,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

118

Blackbody radiation shift in the Sr optical atomic clock  

E-Print Network (OSTI)

We evaluated the static and dynamic polarizabilities of the 5s^2 ^1S_0 and 5s5p ^3P_0^o states of Sr using the high-precision relativistic configuration interaction + all-order method. Our calculation explains the discrepancy between the recent experimental 5s^2 ^1S_0 - 5s5p ^3P_0^o dc Stark shift measurement \\Delta \\alpha = 247.374(7) a.u. [Middelmann et. al, arXiv:1208.2848 (2012)] and the earlier theoretical result of 261(4) a.u. [Porsev and Derevianko, Phys. Rev. A 74, 020502R (2006)]. Our present value of 247.5 a.u. is in excellent agreement with the experimental result. We also evaluated the dynamic correction to the BBR shift with 1 % uncertainty; -0.1492(16) Hz. The dynamic correction to the BBR shift is unusually large in the case of Sr (7 %) and it enters significantly into the uncertainty budget of the Sr optical lattice clock. We suggest future experiments that could further reduce the present uncertainties.

Safronova, M S; Safronova, U I; Kozlov, M G; Clark, Charles W

2012-01-01T23:59:59.000Z

119

Blackbody radiation shift in the Sr optical atomic clock  

E-Print Network (OSTI)

We evaluated the static and dynamic polarizabilities of the 5s^2 ^1S_0 and 5s5p ^3P_0^o states of Sr using the high-precision relativistic configuration interaction + all-order method. Our calculation explains the discrepancy between the recent experimental 5s^2 ^1S_0 - 5s5p ^3P_0^o dc Stark shift measurement \\Delta \\alpha = 247.374(7) a.u. [Middelmann et. al, arXiv:1208.2848 (2012)] and the earlier theoretical result of 261(4) a.u. [Porsev and Derevianko, Phys. Rev. A 74, 020502R (2006)]. Our present value of 247.5 a.u. is in excellent agreement with the experimental result. We also evaluated the dynamic correction to the BBR shift with 1 % uncertainty; -0.1492(16) Hz. The dynamic correction to the BBR shift is unusually large in the case of Sr (7 %) and it enters significantly into the uncertainty budget of the Sr optical lattice clock. We suggest future experiments that could further reduce the present uncertainties.

M. S. Safronova; S. G. Porsev; U. I. Safronova; M. G. Kozlov; Charles W. Clark

2012-10-26T23:59:59.000Z

120

A Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrothermal  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » A Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrothermal Calcites, Long Valley Caldera, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Journal Article: A Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrothermal Calcites, Long Valley Caldera, California Details Activities (3) Areas (1) Regions (0) Abstract: The 87Sr/86Sr values of thermal waters and hydrothermal calcites of the Long Valley caldera geothermal system are more radiogenic than those of young intracaldera volcanic rocks. Five thermal waters display 87Sr/86Sr

Note: This page contains sample records for the topic "js rogers sr" 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

A Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrotherm...  

Open Energy Info (EERE)

Sr-Isotopic Comparison Between Thermal Waters, Rocks, And Hydrothermal Calcites, Long Valley Caldera, California Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home...

122

POPDOSE-SR: A Routine Release Atmospheric Population Dose Model Used at SRS  

SciTech Connect

POPDOSE-SR is used to calculate dose to the surrounding Savannah River Site (SRS) population following routine releases of atmospheric radioactivity.

Simpkins, A.A.

2001-04-04T23:59:59.000Z

123

Disorder effects in half-metallic Sr 2 FeMoO 6 single crystals  

Science Conference Proceedings (OSTI)

Double perovskites such as Sr 2 FeMoO 6 (SFMO) have been predicted to be half-metallic (100% spin polarized). However

Raghava P. Panguluri; Sheng Xu; Yutaka Moritomo; I. V. Solovyev; B. Nadgorny

2009-01-01T23:59:59.000Z

124

Figure SR1. Flow of Natural Gas Imports and Exports, 2009  

U.S. Energy Information Administration (EIA)

Figure SR1 of the U.S. Natural Gas Imports & Exports: 2009. This report provides an overview of U.S. international natural gas trade in 2009. ...

125

Molecular beam epitaxy of SrTiO3 with a growth window  

E-Print Network (OSTI)

Materials Fundamentals of Molecular Beam Epitaxy (AcademicMolecular beam epitaxy of SrTiO 3 with a growth windowgrowth window in conventional molecular beam epitaxy (MBE)

Stemmer, Susanne

2009-01-01T23:59:59.000Z

126

Bunch Length Measurements With Laser/SR Cross-Correlation  

SciTech Connect

By operating SPEAR3 in low-{alpha} mode the storage ring can generate synchrotron radiation pulses of order 1ps. Applications include pump-probe x-ray science and the production of THz radiation in the CSR regime. Measurements of the bunch length are difficult, however, because the light intensity is low and streak cameras typically provide resolution of only a few ps. Tests are now underway to resolve the short bunch length using cross-correlation between a 60-fs Ti:Sapphire laser and the visible SR beam in a BBO crystal. In this paper we report on the experimental setup, preliminary measurements and prospects for further improvement.

Miller, Timothy; /Stanford U., Phys. Dept.; Daranciang, Dan; /Stanford U., Phys. Dept.; Lindenberg, Aaron; /Stanford U., Phys. Dept.; Corbett, Jeff; /SLAC; Fisher, Alan; /SLAC; Goodfellow, John; /SLAC; Huang, Xiaobiao; /SLAC; Mok, Walter; /SLAC; Safranek, James; /SLAC; Wen, Haidan; /SLAC

2012-07-06T23:59:59.000Z

127

Degradation Mechanism in La0.8Sr0.2CoO3 [La subscript 0.8 Sr subscript 0.2 CoO subscript 3] as Contact Layer on the Solid Oxide Electrolysis Cell Anode  

E-Print Network (OSTI)

Detailed chemical and structural analyses are presented for the degradation mechanism of La0.8Sr0.2CoO3 [La subscript 0.8 Sr subscript 0.2 CoO subscript 3

Sharma, Vivek Inder

128

A ~60 Myr periodicity is common to marine-87Sr/86Sr, fossil biodiversity, and large-scale sedimentation: what does the periodicity reflect?  

E-Print Network (OSTI)

We find that the marine 87Sr/86Sr record shows a significant periodicity of 59.3 \\pm 3 Myr. The 87Sr/86Sr record is 171{\\deg} \\pm 12{\\deg}out of phase with a 62 (\\pm 3) Myr periodicity previously reported in the record of marine-animal diversity. These periodicities are close to 58 (\\pm 4) Myr cycles found for the number of gap-bounded sedimentary carbonate packages of North America We propose that these periodicities reflect the operation of a periodic "pulse of the Earth" in large-scale, Earth processes. These may be linked to mantle or plate-tectonic events, possibly uplift, which affects Earth's climate and oceans, and so the geochemistry, sedimentation, and biodiversity of the marine realm. Alternately, they may be linked to oscillation of the solar system normal to the plane of the galaxy.

Melott, Adrian L; Petersen, K D; McArthur, John M

2012-01-01T23:59:59.000Z

129

Oxygen Surface Exchange Kinetics on Sr-Substituted Lanthanum Manganite and Ferrite Thin-Film Microelectrodes  

E-Print Network (OSTI)

The surface oxygen exchange kinetics occurring on dense La0.8Sr0.2MnO3 (65nm thick) and La0.8Sr0.2FeO3 (110nm thick) thin films were investigated by electrochemical impedance spectroscopy (EIS). Rutherford backscattering ...

la O', Gerardo Jose

130

Modeling of CSP, KPN and SR systems with systemC  

Science Conference Proceedings (OSTI)

In this chapter we show the ability to specify with SystemC under the restrictions imposed by several model of computations, namely CSP, KPN and SR. Specifying under these MoCs provides some important properties, specially deterrninism and more protection ... Keywords: CSP, KPN, SR, model of computation, system-level design, systemC

Fernando Herrera; Pablo Snchez; Eugenio Villar

2004-01-01T23:59:59.000Z

131

Li-doped (Ba,Sr)TiO3 thick film interdigital capacitors for microwave applications  

Science Conference Proceedings (OSTI)

Microwave properties of Li-doped (Ba,Sr)TiO"3 thick film interdigital capacitors have been investigated. According to the reported papers, BaSrTiO"3 materials, paraelectric state at the room temperature, have high dielectric permittivity (>500 @ 1MHz) ... Keywords: BST, Microwave properties, Screen printing, Thick film, Tunability

Se-Ho Kim; Jung-Hyuk Koh

2009-01-01T23:59:59.000Z

132

Performance Evaluation of the Hitachi SR8000 Using OpenMP Benchmarks  

Science Conference Proceedings (OSTI)

This paper reports the performance of a single node of the Hitachi SR8000 when using OpenMP benchmarks. Each processing node of the SR8000 is a shared-memory parallel computer composed of eight scalar processors with pseudo-vector processing feature. ...

Daisuke Takahashi; Mitsuhisa Sato; Taisuke Boku

2002-05-01T23:59:59.000Z

133

Epitaxial Strain-Induced Chemical Ordering in La0.5Sr0.5CoO3-delta Films on SrTiO3  

DOE Green Energy (OSTI)

Fast ion conductors are at the foundation of a number of important technologies, ranging from fuel cells to batteries to gas separators. Recent results suggest that strained interfaces and thin films may offer new mechanisms for achieving enhanced ionic transport. In this work, we investigate strained 40-nm films of perovskite La{sub 0.5}Sr{sub 0.5}CoO{sub 3-{delta}}, which is an important material for solid oxide fuel cell cathodes and oxygen separation membranes. We demonstrate that a strained thin film of La{sub 0.5}Sr{sub 0.5}CoO{sub 3-{delta}} on SrTiO{sub 3} can have dramatically different anion and cation thermodynamics and kinetics than bulk La{sub 0.5}Sr{sub 0.5}CaO{sub 3-{delta}}. We use synchrotron X-ray diffraction to show that La{sub 0.5}Sr{sub 0.5}CoO{sub 3-{delta}} thin films form an ordered phase at 650 K. The ordered phase consists of La and Sr cations in planes parallel to the surface and is associated with coherent expansion in the c-direction of {approx}5%. This chemical ordering is not observed in the bulk material and is ascribed to the interplay between the epitaxial strain imposed by the substrate, changes in oxygen vacancy content and cation mobility, and the ordering of oxygen vacancies.

W Donner; C Chen; M Liu; A Jacobson; Y Lee; M Gadre; D Morgan

2011-12-31T23:59:59.000Z

134

The Structural Disorder and Lattice Stability of (Ba,Sr)(Co,Fe)O3 Complex Perovskites  

Science Conference Proceedings (OSTI)

The structural disorder and lattice stability of complex perovskite (Ba,Sr)(Co,Fe)O3, a promising cathode material for solid oxide fuel cells and oxygen permeation membranes, is explored by means of first principles DFT calculations. It is predicted that Ba and Sr ions easily exchange their lattice positions (A-cation disorder) similarly to Co and Fe ions (B-cation disorder). The cation antisite defects (exchange of A- and B-type cations) have a relatively high formation energy. The BSCF is predicted to exist in an equilibrium mixture of several phases and can decompose exothermically into the Ba- and Co-rich hexagonal (Ba,Sr)CoO3 and Sr- and Fe-rich cubic (Ba,Sr)FeO3 perovskites.

S.N.Rashkeev

2011-05-01T23:59:59.000Z

135

Crystal structures of mixed-conducting oxides present in the Sr-Fe-Co-O system.  

DOE Green Energy (OSTI)

The potential applications of mixed-conducting ceramic oxides include solid-oxide fuel cells, rechargeable batteries, gas sensors and oxygen-permeable membranes. Several perovskite-derived mixed Sr-Fe-Co oxides show not only high electrical-conductivity but also appreciable oxygen-permeability at elevated temperatures. For example, dense ceramic membranes of SrFeCo{sub 0.5}O{sub 3{minus}{delta}} can be used to separate oxygen from air without the need for external electrical circuitry. The separated oxygen can be directly used for the partial oxidation of methane to produce syngas. Quantitative phase analysis of the SrFeCo{sub 0.5}O{sub 3{minus}{delta}} material has revealed that it is predominantly composed of two Sr-Fe-Co-O systems, Sr{sub 4}Fe{sub 6{minus}x}Co{sub x}O{sub 13} and SrFe{sub 1{minus}x}Co{sub x}O{sub 3{minus}{delta}}. Here we report preliminary structural findings on the SrFe{sub 1{minus}x}Co{sub x}O{sub 3{minus}{delta}} (0 {le} x {le} 0.3) system.

Hodges, J. P.; Jorgensen, J. D.; Miler, D. J.; Ma, B.; Balachandran, U.; Richardson, J. W., Jr.

1998-01-14T23:59:59.000Z

136

Climatology of Sr-90 in Surface Air: A Simple Model using Diffusion and Scavenging  

Science Conference Proceedings (OSTI)

The evolution of Sr-90 distribution following an instantaneous stratospheric or tropospheric source in an annulus defined by latitude walls is investigated by means of a very simple model that uses 12 stratospheric and 12 tropospheric annular ...

D. O. Staley

1985-01-01T23:59:59.000Z

137

South America Latitude Tilted SR Solar Model from INPE and LABSOLAR  

Open Energy Info (EERE)

for Space Research) and the ARCVIEW software were used to produce the dataset and SHAPE files.
The assessment of reliability levels of the BRASIL-SR model were performed...

138

Precise Measurement of Strontium-82 Radioactivity in the Sr-Rb PET  

Office of Science (SC) Website

Precise Measurement of Strontium-82 Precise Measurement of Strontium-82 Radioactivity in the Sr-Rb PET Generator Nuclear Physics (NP) NP Home About Research Facilities Science Highlights Benefits of NP Spinoff Applications Spinoff Archives SBIR/STTR Applications of Nuclear Science and Technology Funding Opportunities Nuclear Science Advisory Committee (NSAC) News & Resources Contact Information Nuclear Physics U.S. Department of Energy SC-26/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3613 F: (301) 903-3833 E: sc.np@science.doe.gov More Information » Spinoff Archives Precise Measurement of Strontium-82 Radioactivity in the Sr-Rb PET Generator Print Text Size: A A A RSS Feeds FeedbackShare Page Application/instrumentation: Precise measurement of 82Sr radioactivity in the Sr-Rb PET generatorm

139

VWA-0024 - In the Matter of Russell P. Marler, Sr. | Department of Energy  

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

VWA-0024 - In the Matter of Russell P. Marler, Sr. VWA-0024 - In the Matter of Russell P. Marler, Sr. VWA-0024 - In the Matter of Russell P. Marler, Sr. This Decision involves a complaint filed by Russell P. Marler, Sr. (Marler or "the complainant") under the Department of Energy (DOE) Contractor Employee Protection Program, codified at 10 C.F.R. Part 708. Marler is a former employee of a DOE contractor, DynMcDermott Petroleum Operations Company (DM), and alleges in his complaint that certain reprisals were taken against him by DM, including a poor performance evaluation and selection for termination under a Reduction-in-Force (RIF), as a result of his participating in an act protected under Part 708. More specifically, Marler alleges that these adverse personnel actions were improperly taken

140

Colossal dielectric constant and relaxation behaviors in Pr:SrTiO{sub 3} ceramics  

Science Conference Proceedings (OSTI)

Sr{sub 1-x}Pr{sub x}TiO{sub 3} ceramics (0.00{<=}x{<=}0.03) were prepared by a traditional solid-state reaction method. Two relaxation processes (marked as A and B) of the Sr{sub 0.09}Pr{sub 0.01}TiO{sub 3} ceramics were investigated by analyzing the E{sub a} values obtained from the Arrhenius law. Colossal dielectric constant (CDC) was first obtained in Sr{sub 0.09}Pr{sub 0.01}TiO{sub 3} ceramics, whose permittivity was up to 3000 (1 kHz, room temperature), greater than that of pure SrTiO{sub 3} ceramics and samples with more Pr addition (x=0.02 and 0.03). This CDC behavior was related to the internal barrier layer capacitance mechanism.

Liu Cheng; Liu Peng; Zhou Jianping; Su Lina; Cao Lei [College of Physics and Information Technology, Shaanxi Normal University, Xi'an 710062 (China); He Ying; Zhang Huaiwu [State Key Laboratory of Electronic Thin Film and Intergrated Devices, University of Electronic Science and Technology of China, Chengdu 610054 (China)

2010-05-15T23:59:59.000Z

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


141

Depletion, quantum jumps, and temperature measurements of ??Sr? ions in a linear Paul Trap  

E-Print Network (OSTI)

This thesis describes the design and construction of two laser systems to probe the 674nm transition of ??Sr? ions in a linear Paul trap. The first laser system made use of a molecular transition in Iodine to stabilize the ...

Richerme, Philip J

2006-01-01T23:59:59.000Z

142

Synthesis and Luminescent Properties of Sr3Al8SiO17:Eu3+  

Science Conference Proceedings (OSTI)

The optical properties suggest that Sr3Al8SiO17 :Eu3+ is an efficient red-emitting phosphor for light emitting diode (LED) applications. Proceedings Inclusion?

143

Figure SR3. U.S. Natural Gas Imports and Exports, 1994-2008  

U.S. Energy Information Administration (EIA)

Figure SR3 of the U.S. Natural Gas Imports & Exports: 2008. This report provides an overview of U.S. international natural gas trade in 2008. Natu ...

144

Figure SR1. Flow of Natural Gas Imports and Exports, 2008  

U.S. Energy Information Administration (EIA)

Figure SR1 of the U.S. Natural Gas Imports & Exports: 2008. ... In 2008 LNG exports went primarily to Japan, after a small amount went to Russia in 2007.

145

Deflagration analysis of the ITP facility utilizing the MELCOR/SR code  

DOE Green Energy (OSTI)

Under certain accident conditions, waste tanks in the In-Tank Processing (ITP) facility may contain significant concentrations of benzene and hydrogen. Because these gases are flammable, a safety analysis was required to demonstrate that the risk posed by the possible combustion of these gases is acceptable. In support of this analysis, the MELCOR/SR computer code was modified to simulate the combustion of benzene-hydrogen mixtures. MELCOR/SR was developed originally to analyze severe accidents that may occur in the SRS production reactors but many of its modules can be used also for non-reactor applications such as combustion and aerosol and radionuclide transport. The MELCOR/SR combustion model (package) was originally configured for the deflagration analysis of hydrogen-carbon monoxide mixtures. With minor changes to the coding in the combustion package subroutines, and the addition of benzene thermodynamic and transport properties to the input decks, MELCOR/SR was modified to analyze deflagrations in benzene-hydrogen gas mixtures. A MELCOR/SR model was created consisting of two control volumes connected by flow paths. One volume represents a type III waste tank; the other, the environment. The flow paths represent vents that open during the deflagration. Choked flow and radiative heat transfer from the hot gas to the cooling coils and tank walls are phenomonalogical aspects accounted for in the model. Results from MELCOR/SR compared favorably with results from two other codes: COMPACT, a code similar to MELCOR/SR used in the preliminary ITP analysis and DPAC, a code developed specifically to analyze deflagrations in SRS waste tanks. Peak pressures predicted by MELCOR/SR (and by DPAC) for realistic waste tank conditions do not exceed the pressure required to fail the primary line of the tank. ({approximately}23 psig)

Allison, D.K.; Chow, S.

1993-07-01T23:59:59.000Z

146

South America PAR SR Solar Model from INPE and LABSOLAR | OpenEI  

Open Energy Info (EERE)

PAR SR Solar Model from INPE and LABSOLAR PAR SR Solar Model from INPE and LABSOLAR Dataset Summary Description (Abstract): Mean values of PAR Solar Radiation in kWh/m2/day for 40km cells for 1 year (month, season, year) based on data from 1995 to 2005 (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders (Supplemental Information): The BRASIL-SR model (developed by INPE - National Institute for Space Research) and the ARCVIEW software were used to produce the dataset and SHAPE files. The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase consisted in an inter-comparison between the core radiation transfer models adopted by the SWERA Project to map the solar energy n the various countries participating in the project. The HELIOSAT model took part in this phase like benchmark due to its employment to apply solar energy resources in countries from European Union. In the second phase, the solar flux estimates provided by the BRASIL-SR model were compared with measured values acquired at several solarimetric stations spread along the Brazilian territory. The BRASIL-SR model is not validated for areas covered by snow.

147

South America Latitude Tilted SR Solar Model from INPE and LABSOLAR |  

Open Energy Info (EERE)

Latitude Tilted SR Solar Model from INPE and LABSOLAR Latitude Tilted SR Solar Model from INPE and LABSOLAR Dataset Summary Description (Abstract): Mean values of Latitude Tilted Solar Radiation in kWh/m2/day for 40km cells for 1 year (month, season, year) based on data from 1995 to 2005 (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders (Supplemental Information): The BRASIL-SR model (developed by INPE - National Institute for Space Research) and the ARCVIEW software were used to produce the dataset and SHAPE files.The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase consisted in an inter-comparison between the core radiation transfer models adopted by the SWERA Project to map the solar energy in the various countries participating in the project. The HELIOSAT model took part in this phase like benchmark due to its employment to map solar energy resources in countries from European Union. In the second phase, the solar flux estimates provided by the BRASIL-SR model were compared with measured values acquired at several solarimetric stations spread along the Brazilian territory. The BRASIL-SR model is not validated for areas covered by snow.

148

Altering the equilibrium condition in Sr-doped lanthanum manganite.  

DOE Green Energy (OSTI)

The material of choice for a solid oxide fuel cell cathode based on a yttria-stabilized zirconia (YSZ) electrolyte is doped lanthanum manganite, (La, Sr)MnO{sub 3}. It excels at many of the attributes necessary for a system to work at the required operating temperature and is flexible enough to allow for materials optimization. Although strontium-doping increases the electronic conductivity of the material, the ionic conductivity of the material remains negligible under operating conditions. Studies have shown that the internal equilibrium of the material heavily favors oxidation of the manganese and rather than the loss of lattice oxygen as a charge compensation mechanism. This lack of oxygen vacancies in the structure retards the ability of the material to conduct oxygen ions; thus the optimized system requires a large number of engineered triple point boundary locations to work efficiently. We have successfully doped the host LSM lattice to alter the interred equilibrium of the material to increase its ionic conductivity and thus lower the cathodic overpotential of the system. Our presentation will discuss these new materials, the results of cell tests, and a number of characterization experiments performed.

Carter, J. D.; Krumpelt, M.; Vaughey, J.; Wang, X.

1999-05-28T23:59:59.000Z

149

Geoqumica elemental e isotpica (Sr e Nd) como traadores de poluentes antrpicos, caso de estudo: fosfogesso de Cubato (SP).  

E-Print Network (OSTI)

??O objetivo deste estudo foi aplicar tcnicas de geoqumica de elementos maiores, menores e istopos de Sr e Nd para identificar contaminao por fosfogesso em (more)

Bruno de Oliveira Calado

2008-01-01T23:59:59.000Z

150

DOE Spent Nuclear Fuel Information in Support of TSPA-SR  

Science Conference Proceedings (OSTI)

The Department of Energy (DOE) Office of Civilian Radioactive Waste Management (RW) has started the recommendation (SR) effort to show that Yucca Mountain could be selected as the first geologic repository for spent nuclear fuel (SNF) and high-level waste. One component of the site recommendation will be a total system performance assessment (TSPA), based on the design concept and the scientific data and analysis available, describing the repository's probable behavior relative to the overall system performance standards. Thus, all the data collected from the Exploratory Studies Facilities to-date have been incorporated into the latest TSPA model. To ensure that the DOE-owned SNF continues to be acceptable for disposal in the repository, it will be included in the TSPA-SR evaluation. A number of parameters are needed in the TSPA-SR models to predict the performance of the DOE-owned SNF materials placed into the potential repository. This report documents all of the basis and/or derivation for each of these parameters. A number of properties were not readily available at the time the TSPA-SR data were requested. Thus, expert judgement and opinion were used to determine a best property value. The performance of the DOE-owned SNF will be published as part of the TSPA-SR report.

H. H. Loo

1999-08-01T23:59:59.000Z

151

Estimation of the Adriatic sea water turnover time using fallout 90Sr as a radioactive tracer  

E-Print Network (OSTI)

Systematic, long term measurements, starting in 1963, of 90Sr activity concentrations in sea water have been performed at four locations (cities of Rovinj, Rijeka, Split and Dubrovnik) along the Croatian coast of the Adriatic sea. In addition, fallout samples were collected in the city of Zadar. 90Sr activity concentrations are in good correlation with the fallout activity, the coefficient of correlation being 0.72. After the nuclear moratorium on atmospheric nuclear bomb tests in 1960s, 90Sr activity concentrations in sea water exponentially dropped from 14.8 +/- 2.4 Bq/m3 in 1963 to 2.0 +/- 0.3 Bq/m3 in 2003. In the same period, the total annual 90Sr land surface deposit in Zadar fell by three orders of magnitude, from 713.3 Bq/m2 in 1963 to 0.4 Bq/m2 in 2003. Using strontium sea water and fallout data, a mathematical model was developed to describe the rate of change of 90Sr activity concentrations in the Adriatic sea water and estimate its mean residence time in the Adriatic. By fitting the experimental d...

Franic, Z

2004-01-01T23:59:59.000Z

152

Development of an Alternative Treatment Scheme for Sr/TRU Removal: Permanganate Treatment of AN-107 Waste  

SciTech Connect

A number of Hanford tanks received waste containing organic complexants, which increase the volubility of Sr-90 and transuranic (TRU) elements. Wastes from these tanks require additional pretreatment to remove Sr-90 and TRU for immobilization as low activity waste (Waste Envelope C). The baseline pretreatment process for Sr/TRU removal was isotopic exchange and precipitation with added strontium and iron. However, studies at both Battelle and Savannah River Technology Center (SRTC) have shown that the Sr/Fe precipitates were very difficult to filter. This was a result of the formation of poor filtering iron solids. An alternate treatment technology was needed for Sr/TRU removal. Battelle had demonstrated that permanganate treatment was effective for decontaminating waste samples from Hanford Tank SY-101 and proposed that permanganate be examined as an alternative Sr/TRU removal scheme for complexant-containing tank wastes such as AW107. Battelle conducted preliminary small-scale experiments to determine the effectiveness of permanganate treatment with AN-107 waste samples that had been archived at Battelle from earlier studies. Three series of experiments were performed to evaluate conditions that provided adequate Sr/TRU decontamination using permanganate treatment. The final series included experiments with actual AN-107 diluted feed that had been obtained specifically for BNFL process testing. Conditions that provided adequate Sr/TRU decontamination were identified. A free hydroxide concentration of 0.5M provided adequate decontamination with added Sr of 0.05M and permanganate of 0.03M for archived AN-107. The best results were obtained when reagents were added in the sequence Sr followed by permanganate with the waste at ambient temperature. The reaction conditions for Sr/TRU removal will be further evaluated with a 1-L batch of archived AN-107, which will provide a large enough volume of waste to conduct crossflow filtration studies (Hallen et al. 2000a).

RT Hallen; SA Bryan; FV Hoopes

2000-08-04T23:59:59.000Z

153

FIA-13-0051 - In the Matter of DeShonne E. Massey Sr. | Department of  

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

1 - In the Matter of DeShonne E. Massey Sr. 1 - In the Matter of DeShonne E. Massey Sr. FIA-13-0051 - In the Matter of DeShonne E. Massey Sr. On August 14, 2013, the Office of Hearings and Appeals (OHA) issued a decision granting, in part, an appeal (Appeal) from a Freedom of Information Act (FOIA) determination issued by the Office of Information Resources (OIR). The Appellant filed a FOIA request seeking copies of any and all records related to a named OHA employee's use of flexiplace or telecommuting during her entire tenure at DOE. In its response, OIR stated that after OHA and the Office of the Chief Financial Officer (CFO) conducted searches of their respective files, only one responsive document was identified. OIR released this document to Appellant but withheld certain information that was deemed exempt from the FOIA under Exemption

154

FIA-13-0040 - In the Matter of DeShonne E. Massey Sr. | Department of  

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

0 - In the Matter of DeShonne E. Massey Sr. 0 - In the Matter of DeShonne E. Massey Sr. FIA-13-0040 - In the Matter of DeShonne E. Massey Sr. On July 17, 2013, OHA issued a decision denying an appeal (Appeal) from a FOIA determination issued by the Office of Information Resources (OIR). The Appellant filed a two-part request under the Freedom of Information Act (FOIA). The request sought 1) copies of time and attendance records for OHA employees, and 2) copies of counseling memoranda or disciplinary actions involving time and attendance for OHA employees, including, but not limited to, Avery R. Webster and XXXXX. In response to the first part of the request, the OIR released one document in part, withholding portions pursuant to Exemption 6 of the FOIA. In response to the second part of the request, the OIR informed the Appellant that it neither confirmed nor

155

FIA-13-0041 - In the Matter of DeShonne E. Massey, Sr. | Department of  

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

1 - In the Matter of DeShonne E. Massey, Sr. 1 - In the Matter of DeShonne E. Massey, Sr. FIA-13-0041 - In the Matter of DeShonne E. Massey, Sr. On July17, 2013, OHA issued a decision granting, in part, an appeal (Appeal) from a FOIA determination issued by the Office of Health, Safety and Security (HSS). The Appellant had filed a FOIA request seeking copies of any and all records that contain the time of arrival and/or departure of a named OHA employee at the FOHO gym located in the DOE Forrestal Building, from August 2007 to the present. In its response, HSS stated that after conducting a search of its files, HSS did not locate any responsive documents. The Appellant contested the adequacy of the search conducted in response to Appellant's request. Upon review of a description of the search conducted by HSS, OHA determined that HSS conducted a search

156

Audit Special Inquiry: OAS-SR-10-04 | Department of Energy  

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

Inquiry: OAS-SR-10-04 Inquiry: OAS-SR-10-04 Audit Special Inquiry: OAS-SR-10-04 September 22, 2010 Special Inquiry: Review of Allegations Regarding Hiring and Contracting in the Office of Energy Efficiency and Renewable Energy In April 2010, the Office of Inspector General (OIG) began receiving allegations concerning hiring and contracting practices within the Office of Energy Efficiency and Renewable Energy (EERE). These allegations included: 1. Improprieties in the hiring of a contract employee to a senior Federal career position, including concerns that the contract employee was pre-selected or otherwise had an unfair advantage; 2. Performance of inherently governmental duties, including the supervision of Federal employees, by the same contract employee; and, 3. Award of work to a

157

Special Inquiry: INS-SR-13-02 | Department of Energy  

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

INS-SR-13-02 INS-SR-13-02 Special Inquiry: INS-SR-13-02 April 15, 2013 Alleged Mismanagement of the Department of Energy's Executive Protection Operations The Office of Special Operations (Special Operations) has primary responsibility for the protection and evacuation of the Secretary of Energy and other executive personnel as designated by the Secretary. Special Operations, a part of the Office of Health, Safety and Security (HSS), employs special agents charged with managing executive protection operations. These special agents apply tactics, techniques and procedures designed to protect an individual from physical assault or harm. Special Operations agents are augmented by Office of Secure Transportation (OST) agents while the Secretary is on travel status, and in coordination with

158

Special Report: OAS-SR-10-03 | Department of Energy  

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

Special Report: OAS-SR-10-03 Special Report: OAS-SR-10-03 Special Report: OAS-SR-10-03 September 14, 2010 Department's Freedom of Information Act Request Process The Freedom of Information Act (FOIA or the Act) (5 U.S.C. 552) specifies the information that all Federal Agencies are required to make available to the public. The Act, as it is applicable to the Department of Energy (Department), is presented in 10 CFR 1004. According to the Department's most recent Annual FOIA Report, in Fiscal Year (FY) 2009, 1,809 FOIA requests were received. Of these, 702 remained at Department Headquarters for processing, with the remainder being processed by various field organizations. In most circumstances, the Act requires that responses be provided within a maximum of 20 days. The Department has established a FOIA

159

Special Report: OAS-SR-10-01 | Department of Energy  

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

1 1 Special Report: OAS-SR-10-01 July 21, 2010 Need for Enhanced Surveillance During the Yucca Mountain Project Shut Down The Nuclear Waste Policy Act Amendments of 1987 (Act) designated Yucca Mountain in Southwestern Nevada as the site for a national geologic repository for high-level nuclear waste, primarily the waste generated by U.S. commercial nuclear plants. The Department of Energy (Department) assigned management of the program to the Office of Civilian Nuclear Waste Management (OCRWM) and formally designated the project as the Yucca Mountain Project (Project). Topic: Management & Administration Special Report: OAS-SR-10-01 More Documents & Publications Special Report: OAS-SR-10-02 Gregory H. Friedman: Before the Subcommittee on Environment and the

160

Special Inquiry: INS-SR-13-01 | Department of Energy  

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

Special Inquiry: INS-SR-13-01 Special Inquiry: INS-SR-13-01 Special Inquiry: INS-SR-13-01 January 31, 2013 Alleged Wasteful Spending Regarding International Travel for the Department of Energy's Deputy Secretary The Department of Energy's Deputy Secretary represents the U.S. Government, the Department and the Secretary in many high-level international and ministerial meetings. In this role, the Deputy Secretary is authorized executive protection while on international travel for security purposes, to reduce the risk of harm and aid mission accomplishment. During such travel, the Deputy Secretary is authorized premium class (first or business class) accommodations, and is usually accompanied by a special agent with law enforcement authority from the Department's Office of Special Operations (OSO), a component of the Office of Health Safety and

Note: This page contains sample records for the topic "js rogers sr" 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

High temperature magnetic ordering in the 4d perovskite SrTcO3  

SciTech Connect

We present evidence for possibly the highest magnetic ordering temperature in any compound without 3d transition elements. Neutron powder diffraction measurements, at both time-of-flight and constant wavelength sources, were performed on two independently prepared SrTcO{sub 3} powders. SrTcO{sub 3} adopts a distorted perovskite structure with G-type antiferromagnetic ordering and has a moment of 1.87(4){mu}{sub B} per Tc cation at room temperature with an extraordinarily high Neel point close to 750 C. Electronic structure calculations reveal extensive mixing between the technetium 4d states and oxygen states proximal to the Fermi level. This hybridization leads to a close relationship between magnetic ordering temperature and moment formation in SrTcO{sub 3}.

Rodriguez, Efrain E. [National Institute of Standards and Technology (NIST), Gaithersburg, MD; Poineau, Frederic [University of Nevada, Las Vegas; Llobet, Anna [Los Alamos National Laboratory (LANL); Kennedy, Brendan J. [University of Technology Sydney; Avdeev, Maxim [Bragg Institute, ANSTO; Thorogood, Gordon J. [Bragg Institute, ANSTO; Carter, Melody L. [ANSTO; Seshadri, Ram [University of California, Santa Barbara; Singh, David J [ORNL; Cheetham, Anthony K. [University of Cambridge

2011-01-01T23:59:59.000Z

162

PREFERRING sP RATS BY THE CANNABINOID ANTAGONIST SR-141716  

E-Print Network (OSTI)

Abstract The present study assessed the efficacy of the cannabinoid CBi receptor antagonist, SR-141716, in reducing voluntary ethanol intake in selectively bred Sardinian alcohol-preferring (sP) rats. Ethanol (10%, v/v) and food were available in daily 4h scheduled access periods; water was present 24 h/day. The acute administration of a 2.5 and a 5 mg/kg dose of SR-141716 selectively reduced ethanol intake, whereas a 10 mg/kg dose of SR-141716 reduced to a similar extent both ethanol and food intake. These results suggest that the cannabinoid CBi receptor is involved in the mediation of the ethanolreinforcing effects in sP rats.

unknown authors

1997-01-01T23:59:59.000Z

163

Molecular beam epitaxy of SrTiO{sub 3} with a growth window  

Science Conference Proceedings (OSTI)

Many complex oxides with only nonvolatile constituents do not have a wide growth window in conventional molecular beam epitaxy (MBE) approaches, which makes it difficult to obtain stoichiometric films. Here it is shown that a growth window in which the stoichiometry is self-regulating can be achieved for SrTiO{sub 3} films by using a hybrid MBE approach that uses a volatile metal-organic source for Ti, titanium tetra isopropoxide (TTIP). The growth window widens and shifts to higher TTIP/Sr flux ratios with increasing temperature, showing that it is related to the desorption of the volatile TTIP. We demonstrate stoichiometric, highly perfect, insulating SrTiO{sub 3} films. The approach can be adapted for the growth of other complex oxides that previously were believed to have no wide MBE growth window.

Jalan, Bharat; Moetakef, Pouya; Stemmer, Susanne [Materials Department, University of California, Santa Barbara, California 93106-5050 (United States)

2009-07-20T23:59:59.000Z

164

Evolution of Magnetic Oxygen States in Sr-Doped LaCoO3  

SciTech Connect

Magnetism in La1-xSrxCoO3 as a function of doping is investigated with x-ray absorption spectroscopy and x-ray magnetic circular dicrhoism at the O K edge, and corresponding first principles electronic structure calculations. For small x, the spectra are consistent with the formation of ferromagnetic clusters occurring within a nonmagnetic insulating matrix. Sr-induced, magnetic O-hole states form just above EF and grow with increasing Sr doping. Density functional calculations for x=0 yield a nonmagnetic ground state with the observed rhombohedral distortion and indicates that doping introduces holes at the Fermi level in magnetic states with significant O 2p and Co t2g character for the undistorted pseudocubic structure. Supercell calculations show stronger magnetism on oxygen atoms having more Sr neighbors.

Medling, S.; Lee, Yuen; Zheng, H.; Mitchell, J.F.; Freeland, J.W.; Harmon, Bruce N.; Bridges, F.

2012-10-12T23:59:59.000Z

165

SUPPLEMENT ANALYSIS OF FOREIGN RESEARCH REACTOR srENT NUCLEAR FUEL  

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

FOREIGN RESEARCH REACTOR srENT NUCLEAR FUEL FOREIGN RESEARCH REACTOR srENT NUCLEAR FUEL TRANSPORTATION ALONG OTHER THAN~. PRESENTATIVE ROUTE FROM CONCORD NAVAL WEAPO~~ STATION TO IDAHO NATIONAL ENGINEERING AND ENVIRONMENTAL LADORA TORY Introduction The Department of Energy is planning to transport foreign research reactor spent nuclear fuel by rail from the Concord Naval Weapons Station (CNWS), Concord, California, to the Idaho National Engineering and Environmental Laboratory (INEEL). The environmental analysis supporting the decision to transport, by rail or truck, foreign research reactor spent nuclear fuel from CNWS to the INEEL is contained in +he Final Environmental Impact Statement on a Proposed Nuclear Weapons Nonproliftration Policy Concerning Foreign Research Reactor

166

Enhancing the Electron Mobility via Delta-Doping in SrTiO3  

Science Conference Proceedings (OSTI)

We fabricated high-mobility {delta}-doped structures in SrTiO{sub 3} thin films in order to investigate the low temperature electronic transport properties of confined carriers in this system. An enhancement of the electron mobility above the bulk value was observed as the doped layer thickness decreased. High-field Hall measurements revealed that this mobility enhancement originates from higher-mobility electrons in the undoped clean regions, which have quantum-mechanically broadened from the doped layer. Because of the absence of apparent lattice misfit between the layers, this structure is highly suitable for investigating two-dimensional electron gases in SrTiO{sub 3}

Kozuka, Y.

2011-08-11T23:59:59.000Z

167

Ferroelectricity in strained Ca0.5Sr0.5TiO3 from first principles  

E-Print Network (OSTI)

We present a density-functional theory investigation of strained Ca[subscript 0.5]Sr[subscript 0.5]TiO[subscript 3] (CSTO). We have determined the structure and polarization for a number of arrangements of Ca and Sr in a ...

Halilov, Samed

168

NMR and SR study of magnetic dilution in the triangular Heisenberg antiferromagnet This article has been downloaded from IOPscience. Please scroll down to see the full text article.  

E-Print Network (OSTI)

NMR and SR study of magnetic dilution in the triangular Heisenberg antiferromagnet NaCrO 2 Collections Journals About Contact us My IOPscience #12;NMR and µSR study of magnetic dilution with isotropic interactions [1]. We examine by NMR and µSR the effect of substitution of non magnetic Ga3+ ions

Paris-Sud 11, Université de

169

Preparation of Bi-Sr-Ca-Cu-O superconductors from oxide-glass precursors  

DOE Patents (OSTI)

A superconductor and precursor therefor from oxide mixtures of Ca, Sr, Bi and Cu. Glass precursors quenched to elevated temperatures result in glass free of crystalline precipitates having enhanced mechanical properties. Superconductors are formed from the glass precursors by heating in the presence of oxygen to a temperature below the melting point of the glass.

Hinks, David G. (Lemont, IL); Capone, II, Donald W. (Northbridge, MA)

1992-01-01T23:59:59.000Z

170

(Ba,Sr)TiO3 dielectrics for future stacked- capacitor DRAM  

Science Conference Proceedings (OSTI)

Thin films of barium-strontium titanate (Ba,Sr)TiO3 (BSTO) have been investigated for use as a capacitor dielectric for future generations of dynamic random-access memory (DRAM). This paper describes progress made in the preparation of BSTO ...

D. E. Kotecki; J. D. Baniecki; H. Shen; R. B. Laibowitz; K. L. Saenger; J. J. Lian; T. M. Shaw; S. D. Athavale; C. Cabral; P. R. Duncombe; M. Gutsche; G. Kunkel; Y.-J. Park; Y.-Y. Wang; R. Wise

1999-05-01T23:59:59.000Z

171

ON THE COMPETITION BETWEEN FERROMAGNETIC AND ANTIFERROMAGNETIC STATES IN Sr2MnMoO6  

E-Print Network (OSTI)

It is argued that the magnetic behavior of Sr2MnMoO6 is determined by the existence of two total energy minima corresponding to the metallic ferromagnetic and insulating antiferromagnetic states, which may be nearly degenerate depending on the magnitude of the breathing distortion. PACS: 71.20.Be; 71.70.Gm; 72.25.Ba; 75.30.Et

I. V. Solovyev

2002-01-01T23:59:59.000Z

172

HRSG/SR Revised 07/01/08 Page 1 of 2 HAZARD ASSESSMENT SURVEY & ANALYSIS  

E-Print Network (OSTI)

HRSG/SR Revised 07/01/08 Page 1 of 2 HAZARD ASSESSMENT SURVEY & ANALYSIS PERSONAL PROTECTIVE is accomplished by surveying the workplace to determine where physical or health hazards are present or likely to noise levels. (>85 dBA 8-hour TWA) Ear muffs or plugs Nuisance dust/mist Welding fumes Asbestos

Eirinaki, Magdalini

173

Band-engineered SrTiO{sub 3} nanowires for visible light photocatalysis  

Science Conference Proceedings (OSTI)

We have theoretically investigated the structural, electronic, and optical properties of perovskite SrTiO{sub 3} nanowires for use in visible light photocatalytic applications using pseudopotential density-functional theory calculations. The electronic structure calculations show that the band gap is modified in the SrTiO{sub 3} nanowires compared with that of the bulk. For TiO{sub 2}-terminated nanowires, the mid-band states induced by the combination of oxygen and strontium atoms on the surface lead to a shift in the valence band toward the conduction band without interference from the edge of the conduction band, which reduces the band gap. On the contrary, the electronic states induced by the combination of oxygen and strontium atoms on the surface of SrO-terminated nanowires lead to a shift in the conduction band toward the valence band. The calculated optical results indicate that the absorption edge of the nanowires shift towards the red-light region. These theoretical results suggest that perovskite SrTiO{sub 3} nanowires are promising candidates for use in visible light photocatalytic processes such as solar-assisted water splitting reactions.

Fu, Q.; He, T.; Li, J. L.; Yang, G. W. [State Key Laboratory of Optoelectronic Materials and Technologies, Institute of Optoelectronic and Functional Composite Materials, Nanotechnology Research Center, School of Physics and Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong (China)

2012-11-15T23:59:59.000Z

174

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

SciTech Connect

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

175

South America Global Horizontal SR Solar Model from INPE and LABSOLAR |  

Open Energy Info (EERE)

727 727 Varnish cache server Browse Upload data GDR 429 Throttled (bot load) Error 429 Throttled (bot load) Throttled (bot load) Guru Meditation: XID: 2142256727 Varnish cache server South America Global Horizontal SR Solar Model from INPE and LABSOLAR Dataset Summary Description (Abstract): Mean values of Global Horizontal Solar Radiation in kWh/m2/day for 40km cells for 1 year (month, season, year) based on data from 1995 to 2005 (Purpose): To provide a set of consistent, reliable, verifiable, and accessible global data sets for international and in-country investors and other stakeholders. (Supplemental Information): The BRASIL-SR model (developed by INPE - National Institute for Space Research) and the ARCVIEW software were used to produce the dataset and SHAPE files. The assessment of reliability levels of the BRASIL-SR model were performed through the evaluation of the deviations shown by the estimated values for solar radiation flux vis-à-vis the values measured at the surface (ground truth). This evaluation was done in two phases. The first phase consisted in an inter-comparison between the core radiation transfer models adopted by the SWERA Project to map the solar energy in the various countries participating in the project. The HELIOSAT model took part in this phase like benchmark due to its employment to map solar energy resources in countries from European Union. In the second phase, the solar flux estimates provided by the BRASIL-SR model were compared with measured values acquired at several solarimetric stations spread along the Brazilian territory. The BRASIL-SR model is not validated for areas covered by snow.

176

The Human Plutonium Injection Experiments William Moss and Roger Eckhardt  

E-Print Network (OSTI)

atomic bombs. The idea was to remove a worker from the job if and when it was determined that the he had Need for Plutonium In planning the development of the atomic bomb, scientists considered using two (and further reports appeared in the seventies), the names of the subjects were not dis- closed

Massey, Thomas N.

177

Matt Rogers on AES Energy Storage | Department of Energy  

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

Energy 101: Solar PV Sec. Chu Online Town Hall Energy 101: Cool Roofs Energy 101: Geothermal Heat Pumps Why Cool Roofs? Chu at COP-16: Building a Sustainable Energy Future...

178

Offer of Settlement and Stipulation and Agreement Dear Ms. Rogers:  

E-Print Network (OSTI)

all issues raised in the captioned proceeding. In addition, Chandeleur filed a tariff sheet containing the settlement rates to be effective April 1, 2004. 1 As discussed below, the Commission finds that the proposed settlement is fair, reasonable and in the public interest with the terms and conditions to be effective April 1, 2004, as provided for in the Settlement. Background 2. On September 30, 2003, Chandeleur filed a tariff sheet reflecting an NGA section 4 rate increase in the captioned docket. Chandeleurs proposed rates were based on an overall cost of service of $5,972,623, which represented an increase of 116 percent over current rates. Chandeleur proposed an overall rate of return of 10.5 percent with a return on equity of 12.85 percent and a cost of debt of 6.98 percent based upon a 1 Chandeleur submitted 2 nd Revised Fourteenth Rev. Sheet No. 5, to its FERC Gas Tariff, Second Revised Volume No. 1, in conjunction with its Settlement proposal. The Commission notes that Chandeleur also submitted this tariff sheet in its Motion Rate Filing of March 31, 2004, in Docket No. RP03-625-001. The Commission will act on this tariff sheet in that docket. Docket No. RP03-625-000- 2-hypothetical capital structure of 40 percent debt and 60 percent equity. Chandeleur also proposed a change in its depreciation rates from 1.1 percent to 2.1 percent and a change in its negative salvage rate from 0.15 percent to 0.67 percent. Chandeleur requested that its rates be made effective November 1, 2003. 3. On October 31, 2003, the Commission accepted and suspended Chandeleurs tariff sheet to be effective April 1, 2004, subject to refund. 2

Janice E. Rogers

2004-01-01T23:59:59.000Z

179

CRUISE REPORT R/V ROGER REVELLE (AGOR-24)  

E-Print Network (OSTI)

. The primary and most productive application for the semantic system at JSC is Google Search Appliance (GSA), http://google.jsc.nasa.gov." For the past 7 years JSC has been using the Google Search Appliance deal with Google to broker the Agency's current 17 search appliances. To test this capability, the team

New Hampshire, University of

180

P D P Rogers, Thompson Named New Directors  

Budget and the Senate and House leader-ship on the funding of federal depart-ments and agencies. He received his doctorate from the

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While these samples are representative of the content of NLEBeta,
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to obtain the most current and comprehensive results.


181

George F. Smoot and Roger D. Kornberg -- Nobel Laureates associated...  

Office of Scientific and Technical Information (OSTI)

microwave background radiation. Smoot is an astrophysicist at DOE's Lawrence Berkeley National Lab and a UC Berkeley physics professor. He shared the award with John C. Mather...

182

Matt Rogers on AES Energy Storage | Department of Energy  

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

Pledge? Conversation on the Future of the Wind Industry Science Lecture: Talking the Higgs Boson with Dr. Joseph Incandela Bill Gates and Deputy Secretary Poneman Discuss the...

183

by Roger Pynn Los Alamos National Laboratory LECTURE 2 ...  

Science Conference Proceedings (OSTI)

... SNS at ORNL will cost about $1.5B to construct & ~$140M per year to operate ... Cd is used in frame overlap choppers to absorb slower neutrons ...

2011-04-18T23:59:59.000Z

184

Science Showcase: George F. Smoot and Roger D. Kornberg | OSTI...  

Office of Scientific and Technical Information (OSTI)

Energy Science and Technology Software Center E-print Network Information Bridge LEDP National Library of Energy OSTIblog Science.gov Science Accelerator Science Conference...

185

Matt Rogers on AES Energy Storage | Department of Energy  

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

of Central Florida Faces of the Recovery Act: Sun Catalytix Investing in Clean, Safe Nuclear Energy Secretary Chu Speaks at the 2010 Washington Auto Show Faces of the Recovery...

186

Roger Little, CEO, Spire Corporation Robert Collins, Professor ...  

Science Conference Proceedings (OSTI)

... John Wohlgemuth Program Manager, BP Solar Program Manager, BP Solar John Wohlgemuth President, Surek PV Consulting President, Surek ...

2011-05-07T23:59:59.000Z

187

Matt Rogers on AES Energy Storage | Department of Energy  

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

Recovery Act Transforming the American Economy Through Innovation Linac Coherent Light Source Overview Energy 101: Concentrating Solar Power Cathy Zoi on Weatherization BP Oil...

188

Testimony of Roger D. Kilmer Director Hollings Manufacturing ...  

Science Conference Proceedings (OSTI)

... Administration, the Department of Energy as well ... to accelerate innovation and job creation in American ... workers for middle skill manufacturing jobs. ...

2013-06-14T23:59:59.000Z

189

Roger Seifried, Ph.D. Visiting Assistant Professor  

E-Print Network (OSTI)

, 1982-1985; Manufacturing Engineering Manager - Electronic Systems, 1978-1981; Operations Analysis Supervisor, 1969-1973; Design Engineer, 1967-1969 Training, General Electric Aircraft Engines, 1965 Associates, 1991 Cincinnati Milacron: Government Systems Manager, 1985-1991; Machine Tool Development Manager

Dollar, Anna

190

Testimony of Roger D. Kilmer Director Hollings Manufacturing ...  

Science Conference Proceedings (OSTI)

... of a region, make manufacturing plants more energy ... growth within the growing green economy ... robotic deburring, automated lay up of thermoplastic ...

2013-10-21T23:59:59.000Z

191

Matt Rogers on AES Energy Storage | Department of Energy  

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

Security & Safety -Emergency Response & Procedures or Search Energy.gov Search Clear Filters All Videos ARPA-E 2011 Keynote: Dr. Arun Majumdar ARPA-E 2011 Keynote: Ray Mabus,...

192

3-19-09_Final_Matt_Rogers_Testimony.pdf  

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

Act funds will create jobs and lay the groundwork for a less carbon-intensive, less oil-dependent, and cleaner energy economy. All of our efforts are geared toward meeting...

193

Chu at COP-16: Building a Sustainable Energy Future | Department...  

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

Energy 101: Home Energy Assessment Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations The Recovery Act is "Lighting Up" the streets of Philadelphia 200,000...

194

The Future of Biofuels | Department of Energy  

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

Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations The Recovery Act is "Lighting Up" the streets of Philadelphia 200,000 homes weatherized under the Recovery...

195

A New Biofuels Technology Blooms in Iowa | Department of Energy  

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

Recovery Act update from Sr. Advisor Matt Rogers -- End of Obligations The Recovery Act is "Lighting Up" the streets of Philadelphia 200,000 homes weatherized under the Recovery...

196

Development of high through-put Sr isotope analysis for monitoring reservoir integrity for CO{sub 2} storage.  

SciTech Connect

Recent innovations in multi-collector ICP-mass spectrometry (MC-ICP-MS) have allowed for rapid and precise measurements of isotope ratios in geological samples. Naturally occurring Sr isotopes has the potential for use in Monitoring, Verification, and Accounting (MVA) associated with geologic CO2 storage. Sr isotopes can be useful for: Sensitive tracking of brine migration; Determining seal rock leakage; Studying fluid/rock reactions. We have optimized separation chemistry procedures that will allow operators to prepare samples for Sr isotope analysis off site using rapid, low cost methods.

Wall, Andy; Jain, Jinesh; Stewart, Brian; Capo, Rosemary; Hakala, Alexandra J.; Hammack, Richard; Guthrie, George

2012-01-01T23:59:59.000Z

197

Processing & properties La{sub 1-x}A{sub x}Co{sub 1-y}Fe{sub y}O{sub 3}(A = Sr, Ca) perovskites  

DOE Green Energy (OSTI)

Selected compositions within the system La{sub 1-x}A{sub x}Co{sub 1-y}Fe{sub y}O{sub 3-{delta}}(A = Sr, Ca) were prepared by combustion synthesis and characterized by XRD, TGA, electrical conductivity, and oxygen permeation measurements. Substantial weight loss (due to loss of lattice oxygen) was observed in some compositions at high temperatures. For Sr containing materials, this weight loss increased with increasing Sr content. A substantial decrease in electronic conductivity was observed at high temperatures in Sr doped materials; this decrease was related to the decreased oxygen stoichiometry at these temperatures. In Sr doped compositions, oxygen flux increased with increasing Sr content. Calculated values of ionic conductivity were greater than the conductivity of yttria stabilized zirconia. Substitution of Ca for Sr resulted in substantially lower fluxes.

Stevenson, J.W.; Armstrong, T.R.; Pederson, L.R. [and others

1995-04-01T23:59:59.000Z

198

Effect of crystallinity and nonstoichiometric region on dielectric properties of SrTiO{sub 3} films formed on Ru  

Science Conference Proceedings (OSTI)

The dielectric constant depending on the film thickness for SrTiO{sub 3} films formed on Ru was investigated after an annealing step at 600 deg. C, which shows that the dielectric constant increased abruptly with the film thickness up to 20 nm and then increased slightly, remaining relatively constant at a value of about 65. The abrupt increase was due to the crystallinity of SrTiO{sub 3} films. On the other hand, the slight increase was related to the existence of nonstoichiometric region near the interface of SrTiO{sub 3} film and Ru, which was intermixed with SrTiO{sub 3} and Ti-O phases having an equivalent oxide thickness over 0.32 nm.

Kim, Ja-Yong; Ahn, Ji-Hoon; Kang, Sang-Won; Kim, Jin-Hyock; Roh, Jae-Sung [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); Hynix Semiconductor Incorporated, San 136-1, Ami-ri, Bubal-eub, Icheon-si, Kyoungki-do 467-701 (Korea, Republic of)

2007-08-27T23:59:59.000Z

199

Photoconductivity and Non-Exponential Relaxation at Insulating LaAlO3/SrTiO3 Interfaces  

SciTech Connect

LaAlO{sub 3} is grown on SrO terminated (100) SrTiO{sub 3}, and (110) SrTiO{sub 3}, producing insulating heterointerfaces without light. Photocurrent spectroscopy at low temperatures reveals a broad distribution of interface states between 2 eV and 2.7 eV at both interfaces, with a higher density in the (110) case concomitant with relatively shallow traps. The photocurrent relaxation can be well fitted by a stretched exponential form, confirming energetically distributed electron traps. Photo-carrier lifetimes are larger than a few hundred seconds for optical excitation approaching the SrTiO{sub 3} band-gap energy, providing the opportunity to study transient light-induced properties at low temperatures.

Kim, Minu; Bell, C.; Hikita, Y.; Kozuka, Y.; Kim, B.G.; Hwang, H.Y.

2012-08-17T23:59:59.000Z

200

Charge Melting & Polaron Collapse in LA1.2SR1.8MN207  

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

Charge Melting & Polaron Collapse in LA1.2SR1.8MN207 Charge Melting & Polaron Collapse in LA1.2SR1.8MN207 Recent studies carried out on the Synchrotron Radiation Instrumentation Collaborative Access Team's beamline I-ID-C at the Advanced Photon Source provide new insights into charge melting and polaron collapse. X-ray and neutron scattering measurements directly demonstrate the existence of polarons in the paramagnetic phase of optimally doped colossal magnetoresistive oxides. The polarons exhibit short-range correlations that grow with decreasing temperature, but disappear abruptly at the ferromagnetic transition because of the sudden charge delocalization. The "melting" of the charge ordering as we cool through TC occurs with the collapse of the quasistatic polaron scattering, and provides important new

Note: This page contains sample records for the topic "js rogers sr" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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201

Design and performance of the terawatt Cr:LiSrAlF[sub 6] laser system  

Science Conference Proceedings (OSTI)

The authors have developed a compact, flashlamp-pumped Cr:LiSrAlF[sub 6] laser system capable of producing peak powers in excess of one terawatt. The chirped pulse amplification approach has been optimized for amplification of femtosecond pulses in Cr:LiSrAlF[sub 6]. The system includes a Cr:LiSAF regenerative amplifier followed by a Cr:LiSAF power amplifier chain. The regenerative amplifier produces 12 mJ pulses at a 5 Hz repetition rate which are further amplified to energies above 300 mJ at a 0.5 Hz repetition rate. Recompression results in a pulse energy of 150 mJ and pulse duration of under 135 fsec.

Ditmire, T.; Nguyen, H.; Herman, S.; Perry, M.D.

1993-01-28T23:59:59.000Z

202

Design and performance of the terawatt Cr:LiSrAlF{sub 6} laser system  

Science Conference Proceedings (OSTI)

The authors have developed a compact, flashlamp-pumped Cr:LiSrAlF{sub 6} laser system capable of producing peak powers in excess of one terawatt. The chirped pulse amplification approach has been optimized for amplification of femtosecond pulses in Cr:LiSrAlF{sub 6}. The system includes a Cr:LiSAF regenerative amplifier followed by a Cr:LiSAF power amplifier chain. The regenerative amplifier produces 12 mJ pulses at a 5 Hz repetition rate which are further amplified to energies above 300 mJ at a 0.5 Hz repetition rate. Recompression results in a pulse energy of 150 mJ and pulse duration of under 135 fsec.

Ditmire, T.; Nguyen, H.; Herman, S.; Perry, M.D.

1993-01-28T23:59:59.000Z

203

On the Sr I 4607 A Hanle depolarization signals in the quiet Sun  

E-Print Network (OSTI)

The Hanle depolarization signals of Sr 4607 A have been used to estimate the unsigned magnetic flux and magnetic energy existing in the quiet Sun photosphere. However, the Sr 4607 A Hanle signals are not sensitive to the unsigned flux and energy. They only bear information on the fraction of photosphere occupied by magnetic field strengths smaller than the Hanle saturation, which do not contribute to the unsigned flux and energy. We deduce an approximate expression for the relationship between magnetic fill factor and Hanle signal. When applied to existing Hanle depolarization measurements, it indicates that only 40% of the quiet Sun is filled by magnetic fields with a strength smaller than 60 G. The remaining 60% of the surface has field strengths above this limit. Such constraint will be needed to determine the distribution of magnetic field strengths existing in the quiet Sun.

J. Sanchez Almeida

2005-04-15T23:59:59.000Z

204

Upper limit on spontaneous supercurrents in Sr2RuO4  

SciTech Connect

It is widely believed that the perovskite Sr{sub 2}RuO{sub 4} is an unconventional superconductor with broken time reversal symmetry. It has been predicted that superconductors with broken time reversal symmetry should have spontaneously generated supercurrents at edges and domain walls. We have done careful imaging of the magnetic fields above Sr{sub 2}RuO{sub 4} single crystals using scanning Hall bar and SQUID microscopies, and see no evidence for such spontaneously generated supercurrents. We use the results from our magnetic imaging to place upper limits on the spontaneously generated supercurrents at edges and domain walls as a function of domain size. For a single domain, this upper limit is below the predicted signal by two orders of magnitude. We speculate on the causes and implications of the lack of large spontaneous supercurrents in this very interesting superconducting system.

Chung, Suk Bum

2010-04-05T23:59:59.000Z

205

Structure and property relationship in the mixed-conducting Sr-Fe-Co-O system.  

DOE Green Energy (OSTI)

Mixed-conducting ceramic oxides have potential uses in high-temperature electrochemical applications such as solid oxide fuel cells, advanced batteries, sensors, and oxygen-permeable membranes. The Sr-Fe-Co-O system combines high electronic/ionic conductivity with appreciable oxygen permeability at elevated temperatures. Dense ceramic membranes made of this material can be used to separate high-purity oxygen from air without the need for external electrical circuitry, or to partially oxidize methane to produce syngas. Samples of Sr{sub 2}Fe{sub 3{minus}x}Co{sub x}O{sub y} (with x = 0, 0.6, 1.0, and 1.4) were prepared by solid-state reaction in atmospheres with various oxygen partial pressures (pO{sub 2}) and were characterized by X-ray diffraction, scanning electron microscopy, and electrical conductivity measurements. Phase components of the samples are dependent on cobalt concentration and synthesis pO{sub 2}. Total conductivity increases with increasing temperature and cobalt content in the material. Higher ionic transference numbers have been observed in samples with lower cobalt contents. Current-voltage characteristics determined in a gas-tight cell indicate that a bulk effect, rather than a surface exchange effect, is the main limiting factor for oxygen permeation through membranes made of Sr{sub 2}Fe{sub 2}CoO{sub y}. Oxygen permeability measurements at various temperatures showed that oxygen permeability increases with increasing temperature, as expected. At 900 C, an oxygen permeation flux of 2.5 scc{center_dot}cm{sup {minus}2}{center_dot}min{sup {minus}1} was obtained for a Sr{sub 2}Fe{sub 2}CoO{sub y} disk of 2.9 mm thickness.

Ma, B.

1998-05-18T23:59:59.000Z

206

Evaluating the Potential of Native Ureolytic Microbes To Remediate a 90Sr Contaminated Environment  

Science Conference Proceedings (OSTI)

This study was a preliminary evaluation of ureolytically driven calcite precipitation and strontium coprecipitation for remediating 90Sr contamination at the Hanford 100-N Area in Washington; in particular the approach is suitable for treating sorbed 90Sr that could otherwise be a long-term source for groundwater contamination. Geochemical conditions at the site are compatible with long-term calcite stability, and therefore groundwater and sediment samples were examined to assess the ureolytic capabilities of the native microbiota. Quantitative assays detected up to 2 104 putative ureC gene copies mL-1 in water and up to 9 105 copies g-1 in sediment. The ureC assays and laboratory-based estimates of ureolytic activity indicated that the distribution of in situ ureolytic potential was very heterogeneous with depth and also that the ureolytic activity was predominantly associated with attached organisms. A mixed kinetic-equilibrium model was developed for the 100-N site to simulate urea treatment and predict strontium removal. Together, the microbial characterization data and modeling suggest that the site has the requisite biogeochemical characteristics for application of the calcite precipitation remediation approach for 90Sr.

Yoshiko Fujita; Joanna L. Taylor; Lynn M. Wendt; David W. Reed; Robert W. Smith

2010-09-01T23:59:59.000Z

207

110K Bi-Sr-Ca-Cu-O superconductor oxide and method for making same  

DOE Patents (OSTI)

A superconductor consisting of a sufficiently pure phase of the oxides of Bi, Sr, Ca, and Cu to exhibit a resistive zero near 110K resulting from the process of forming a mixture of Bi.sub.2 O.sub.3, SrCO.sub.3, CaCO.sub.3 and CuO into aparticulate compact wherein the atom ratios are Bi.sub.2, Sr.sub.1.2-2.2, Ca.sub.1.8-2.4, Cu.sub.3. Thereafter, heating the particulate compact rapidly in the presence of oxygen to an elevated temperature near the melting point of the oxides to form a sintered compact, and then maintaining the sintered compact at the elevated temperature for a prolonged period of time. The sintered compact is cooled and reground. Thereafter, the reground particulate material is compacted and heated in the presence of oxygen to an elevated temperature near the melting point of the oxide and maintained at the elevated temperature for a time sufficient to provide a sufficiently pure phase to exhibit a resistive zero near 110K.

Veal, Boyd W. (Downers Grove, IL); Downey, John W. (Joliet, IL); Lam, Daniel J. (Orland Park, IL); Paulikas, Arvydas P. (Downers Grove, IL)

1992-01-01T23:59:59.000Z

208

110K Bi-Sr-Ca-Cu-O superconductor oxide and method for making same  

DOE Patents (OSTI)

A superconductor is disclosed consisting of a sufficiently pure phase of the oxides of Bi, Sr, Ca, and Cu to exhibit a resistive zero near 110K resulting from the process of forming a mixture of Bi[sub 2]O[sub 3], SrCO[sub 3], CaCO[sub 3] and CuO into a particulate compact wherein the atom ratios are Bi[sub 2], Sr[sub 1.2-2.2], Ca[sub 1.8-2.4], Cu[sub 3]. Thereafter, heating the particulate compact rapidly in the presence of oxygen to an elevated temperature near the melting point of the oxides to form a sintered compact, and then maintaining the sintered compact at the elevated temperature for a prolonged period of time. The sintered compact is cooled and reground. Thereafter, the reground particulate material is compacted and heated in the presence of oxygen to an elevated temperature near the melting point of the oxide and maintained at the elevated temperature for a time sufficient to provide a sufficiently pure phase to exhibit a resistive zero near 110K. 7 figs.

Veal, B.W.; Downey, J.W.; Lam, D.J.; Paulikas, A.P.

1992-12-22T23:59:59.000Z

209

Design and Construction of A Cerenkov Counter for In Situ Monitoring of Sr-90 in Groundwater  

SciTech Connect

Migration of groundwater contamination from beneath the U.S. Department of Energys Hanford Site into the Columbia River creates a need for in situ 90Sr monitoring. The prototype monitor discussed here is designed for deployment inside a monitoring well and provides near-real-time determination of the 90Sr concentration in a two-liter groundwater sample. The measurement is made by direct detection of Cerenkov light generated in the water by beta decay of the 90Y daughter. This manuscript presents results from a prototype monitor that was designed by a parametric Monte Carlo simulation study. Calibration and testing results of the as-built system show near perfect agreement between simulated predictions and experimental results. Downwell and laboratory tests demonstrate that the prototype monitor is sensitive to 90Sr at concentrations below drinking water standards of 8 pCi/l (0.3 Bq/l) at the 90% confidence level in measurement times of less than four hours.

Brodzinski, Ronald L.; Runkle, Robert C.; Hartman, John S.; Ashbaker, Eric D.; Douglas, Matthew; Jordan, David V.; McCormick, Kathleen R.; Sliger, William A.; Todd, Lindsay C.

2008-07-01T23:59:59.000Z

210

Photoluminescence in the Ca{sub x}Sr{sub 1-x}WO{sub 4} system at room temperature  

Science Conference Proceedings (OSTI)

In this work, a study was undertaken about the structural and photoluminescent properties, at room temperature, of powder samples from the Ca{sub x}Sr{sub 1-x}WO{sub 4} (x=0-1.0) system, synthesized by a soft chemical method and heat treated between 400 and 700 deg. C. The material was characterized using Infrared, UV-vis and Raman spectroscopy and XRD. The most intense PL emission was obtained for the sample calcined at 600 deg. C, which is neither highly disordered (400-500 deg. C), nor completely ordered (700 deg. C). Corroborating the role of disorder in the PL phenomenon, the most intense PL response was not observed for pure CaWO{sub 4} or SrWO{sub 4}, but for Ca{sub 0.6}Sr{sub 0.4}WO{sub 4}. The PL emission spectra could be separated into two Gaussian curves. The lower wavelength peak is placed around 530 nm, and the higher wavelength peak at about 690 nm. Similar results were reported in the literature for both CaWO{sub 4} and SrWO{sub 4}. - Graphical abstract: The structural and room temperature photoluminescence of Ca{sub x}Sr{sub 1-x}WO4 synthesized by a soft chemical method was studied. The most intense PL emission was obtained for the sample calcined at 600 deg. C, that is neither highly disordered (400-500 deg. C), nor completely ordered (700 deg. C). Corroborating the role of disorder in the PL phenomenon, the most intense PL response was not observed for pure CaWO{sub 4} or SrWO{sub 4}, but for Ca{sub 0.6}Sr{sub 0.4}WO{sub 4}.

Porto, S.L. [Laboratorio de Combustiveis e Materiais (LACOM/DQ/CCEN), Universidade Federal da Paraiba, Campus I, Cidade Universitaria, Joao Pessoa, PB, CEP 58059-900 (Brazil); Longo, E. [CMDMC/LIEC, Instituto de Quimica, UNESP-Araraquara, Rua Prof. Francisco Degni s/n, Araraquara, SP, CEP 14800-900 (Brazil); Pizani, P.S.; Boschi, T.M. [Departamento de Fisica, Universidade Federal de Sao Carlos, Sao Carlos, Rodovia Washington Luiz km 235, SP, CEP 13565-905 (Brazil); Simoes, L.G.P. [Centro Multidisciplinar de Desenvolvimento de Materiais Ceramicos (LIEC/DQ), Universidade Federal de Sao Carlos, Rodovia Washington Luiz km 235, Sao Carlos, SP, CEP 13565-905 (Brazil); Lima, S.J.G. [Laboratorio de Solidificacao Rapida, Departamento de Tecnologia Mecanica (LSR/DTM/CT), Universidade Federal da Paraiba, Campus I, Cidade Universitaria, Joao Pessoa, PB, CEP 58059-900 (Brazil); Ferreira, J.M. [Laboratorio de Combustiveis e Materiais (LACOM/DQ/CCEN), Universidade Federal da Paraiba, Campus I, Cidade Universitaria, Joao Pessoa, PB, CEP 58059-900 (Brazil); COAMA, Area de Meio Ambiente, Centro Federal de Educacao Tecnologica da Paraiba, Av. 1o de Maio 720, Jaguaribe, Joao Pessoa, PB, CEP 58015-430 (Brazil); Soledade, L.E.B.; Espinoza, J.W.M.; Cassia-Santos, M.R.; Maurera, M.A.M.A. [Laboratorio de Combustiveis e Materiais (LACOM/DQ/CCEN), Universidade Federal da Paraiba, Campus I, Cidade Universitaria, Joao Pessoa, PB, CEP 58059-900 (Brazil); Paskocimas, C.A. [Departamento de Engenharia Mecanica, Universidade Federal do Rio Grande do Norte, Natal, RN, CEP 59072-970 (Brazil); Santos, I.M.G. [Laboratorio de Combustiveis e Materiais (LACOM/DQ/CCEN), Universidade Federal da Paraiba, Campus I, Cidade Universitaria, Joao Pessoa, PB, CEP 58059-900 (Brazil)], E-mail: ieda@quimica.ufpb.br; Souza, A.G. [Laboratorio de Combustiveis e Materiais (LACOM/DQ/CCEN), Universidade Federal da Paraiba, Campus I, Cidade Universitaria, Joao Pessoa, PB, CEP 58059-900 (Brazil)

2008-08-15T23:59:59.000Z

211

R -CElJs rol'r5 ET COLI-OL-] {-1l" 5 Prhistoire  

E-Print Network (OSTI)

!.dessls du nvea! actlel de a riÿère Ele mesure lrenle deur m?lresde oiE oi se compose de d.!r sales La prem ère. largernent ouÿene sur lexlérieur ve6l'est esltotae me.r écla rée. U. rélrécssemenl. cng de sept

212

Naam: dhr. prof. dr. ir. J.S. Sinninghe Damste Leeropdracht Moleculaire paleontologie  

E-Print Network (OSTI)

by coupling the hard rock geochemistry and geology of kim- berlites and other rocks into the petroleum program on reservoir geochemistry, basin modelling, petroleum migration and shale gas. The main focus in a range of fluid types, temperatures and pressures, including in the weathering of source rocks

Utrecht, Universiteit

213

ME 6222: Manufacturing Processes and Systems Prof. J.S. Colton GIT 2009  

E-Print Network (OSTI)

­ Air (oxygen), vacuum, inert gas (argon) · Heating ­ External - electric, gas, oil ­ Internal · Pressure · Vacuum · Die · Centrifugal · Squeeze · Semi-solid · Single crystal · Directional solidification mold casting ­ 11% · Centrifugal casting ­ 7% · Shell mold casting ­ 6% #12;ME 6222: Manufacturing

Colton, Jonathan S.

214

Demonstration of the SREX process for the removal of {sup 90}Sr from actual highly radioactive solutions in centrifugal contactors  

Science Conference Proceedings (OSTI)

The SREX process is being evaluated at the Idaho Chemical Processing Plant (ICPP) for the separation of {sup 90}Sr from acidic radioactive wastes stored at the ICPP. These efforts have culminated in a recent demonstration of the SREX process with actual tank waste. This demonstration was performed using 24 stages of 2-cm diameter centrifugal contactors installed in a shielded hot cell at the ICPP Remote Analytical Laboratory. An overall removal efficiency of 99.995% was obtained for {sup 90}Sr. As a result, the activity of {sup 90}Sr was reduced from 201 Ci/m{sup 3} in the feed solution of 0.0089 Ci/m{sup 3} in the aqueous raffinate, which is below the U.S. NRC Class A LLW limit of 0.04 Ci/m{sup 3} for {sup 90}Sr. Lead was extracted by the SREX solvent and successfully partitioned from the {sup 90}Sr using an ammonium citrate strip solution. Additionally, 94% of the total alpha activity, 1.9% of the {sup 241}Am, 99.94% of the {sup 238}Pu, 99.97% of the {sup 239}Pu, 36.4% of the K, 64% of the Ba, and >83% of the Zr were extracted by the SREX solvent. Cs, B, Cd, Ca, Cr, Fe, Mn, Ni, and Na were essentially inextractable. 10 refs., 2 figs., 3 tabs.

Law, J.D.; Wood, D.J.; Todd, T.A.; Olson, L.G.

1997-10-01T23:59:59.000Z

215

Ferromagnetism in Co-doped (La,Sr)TiO3  

SciTech Connect

The origin of ferromagnetism in Co-doped (La,Sr)TiO{sub 3} epitaxial thin films is discussed. While the as-grown samples are not ferromagnetic at room temperature or at 10 K, ferromagnetism at room temperature appears after annealing the films in reducing conditions and disappears after annealing in oxidizing conditions. Magnetic measurements, x-ray absorption spectroscopy, x-ray photoemission spectroscopy and transmission electron microscopy experiments indicate that within the resolution of the instruments the activation of the ferromagnetism is not due to the presence of pure Co.

Fix, T.; Liberati, M.; Aubriet, H.; Sahonta, S.-L.; Bali, R.; Becker, C.; Ruch, D.; MacManus-Driscoll, J.L.; Arenholz, E.; Blamire, M.G.

2009-04-21T23:59:59.000Z

216

Alleged Mismanagement of the Department of Energy's Executive Protection Operations, INS-SR-13-02  

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

Special Inquiry Alleged Mismanagement of the Department of Energy's Executive Protection Operations INS-SR-13-02 April 2013 Department of Energy Washington, DC 20585 April 15, 2013 MEMORANDUM FOR THE SECRETARY FROM: Gregory H. Friedman Inspector General SUBJECT: INFORMATION: Special Inquiry on "Alleged Mismanagement of the Department of Energy's Executive Protection Operations" BACKGROUND The Office of Special Operations (Special Operations) has primary responsibility for the protection of the Secretary of Energy and other executive personnel as designated by the Secretary. Special Operations, a part of the Office of Health, Safety and Security (HSS), employs special agents charged with managing executive protection operations. These special

217

CERENKOV RADIATION INTENSITY CALCULATIONS FOR Sr$sup 90$ AND Co$sup 60$ IN WATER  

SciTech Connect

A method for calculating Cherenkov radiation intensity from an initial electron energy distribution is presented. The Cherenkov radiation intensity from 1 curie of Sr/sup 90/ in secular equilibrium with Y/sup 90/ in water was calculated from the beta energy spectrum to illustrate the use of the method for a pure beta emitter. The Cherenkov radiation intensity from 1 curie of Co/sup 60/ in water was calculated from the Compton electron energy spectrum to illustrate the use of the method for a gamma emitter. The steps necessary to obtain the Compton electron energy spectrum from a gamma emitter are indicated. (auth)

Wymer, R.G.; Biggers, R.E.

1961-09-19T23:59:59.000Z

218

Effects of lithium additions on processing of Bi-Sr-Ca-Cu-O superconducting tapes  

Science Conference Proceedings (OSTI)

Lithium additions to the high-temperature superconductor Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub x} (2212) increased superconducting transition temperatures and improved resistance to effects of magnetic fields. In addition, these additions lowered the melting point of 2212 and increased reaction kinetics. Ag-clad tapes fabricated from 2212 with and without Li exhibited profound differences. For heating to temperatures less than or equal to 840{degrees}C, grain growth and sintering were much more substantial in the tapes containing Li.

Goretta, K.C.; Li, Y.F.; Poeppel, R.B. [Argonne National Lab., IL (United States); Wu, S.; Guo, J. [Illinois Univ., Urbana, IL (United States). Dept. of Nuclear Engineering; Schwartz, J. [Florida State Univ., Tallahassee, FL (United States). National High Magnetic Field Laboratory

1994-01-01T23:59:59.000Z

219

Observation of ferromagnetic resonance in strontium ruthenate (SrRuO3)  

SciTech Connect

We report the observation of ferromagnetic resonance (FMR) in SrRuO3 using the time-resolved magnetooptical Kerr effect. The FMR oscillations in the time-domain appear in response to a sudden, optically induced change in the direction of easy-axis anistropy. The high FMR frequency, 250 GHz, and large Gilbert damping parameter, alpha ~;; 1, are consistent with strong spin-orbit coupling. We find that the parameters associated with the magnetization dynamics, including alpha, have a non-monotonic temperature dependence, suggestive of a link to the anomalous Hall effect.

Langner, Matthew C.; Kantner, Colleen L.S.; Chu, Y.H.; Martin, Lane M.; Yu, Pu; Ramesh, R.; Orenstein, Joe

2008-12-03T23:59:59.000Z

220

Note: Spatial resolution of Fuji BAS-TR and BAS-SR imaging plates  

SciTech Connect

The spatial resolution of two types of imaging plates, Fuji BAS-TR and Fuji BAS-SR, has been measured using a knife-edge x-ray source of 8-keV Cu K{sub {alpha}} radiation. The values for the spatial resolution, defined as the distance between 10% and 90% levels of the edge spread function, are 94 {mu}m and 109 {mu}m, respectively. The resolution values are important for quantitative analysis of x-ray and particle imaging and spectroscopic diagnostics.

Fiksel, G.; Marshall, F. J.; Mileham, C.; Stoeckl, C. [Laboratory for Laser Energetics, University of Rochester, 250 East River Rd., Rochester, New York 14623-1299 (United States)

2012-08-15T23:59:59.000Z

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


221

Catalytic Partial oxidation of n-Tetradecane Using Pyrochlores: Effect of Rh and Sr Substitution  

SciTech Connect

The catalytic partial oxidation (CPOX) of transportation fuels into synthesis gas (H2 + CO) for fuel cells is complicated by the large quantities of aromatics and sulfur-containing compounds commonly found in these fuels. Traditional supported metal catalysts are easily poisoned by these species which adsorb strongly onto the electron-rich metal clusters. The use of noble metal and/or oxide based catalyst systems may offer higher activity and stability, but only if the metal can be bound into a thermally stable structure. To that end, Rh metal was substituted into the structure of a lanthanum zirconate (LZ) pyrochlore to give La2RhyZr(2#2;y)O(7-j,) (LRZ) to produce a strongly bound, well-dispersed metal which is active for CPOX. A second catalyst was prepared in which Sr was substituted for a portion of La in the LRZ structure, producing La(2#2;x)SrxRhyZr(2#2;y)O(7-j) (LSRZ). Each of these pyrochlore catalysts, including the unsubstituted LZ, were characterized and screened for activity in the CPOX of ntetradecane (TD), which is a surrogate for linear paraffins typical of diesel fuel. Results were compared to a commercial Rh/g-Al2O3 catalyst. X-ray diffraction patterns of both the LZ and LRZ showed that each had the cubic unit-cell pyrochlore structure. However, substitution of Sr resulted in a binary perovskite-pyrochlore phase with a defect SrZrO3 phase. Hydrogen pulse chemisorption and temperature programmed reduction studies confirmed that Rh metal was substituted into the structure of the LRZ and LSRZ, and was reducible. Activity screening with the CPOX of TD showed that the Rh substituted in both LRZ and LSRZ is able to retain activity-producing essentially equilibrium synthesis gas yields, as was the Rh/g-Al2O3. Temperature programmed oxidation experiments performed after the CPOX of TD demonstrated that the amount of carbon was quantitatively similar for each catalyst (roughly 0.3 gcarbon/gcatalyst after each run), with the exception of LSRZ, which had significantly less carbon (0.17 gcarbon/gcatalyst). It is speculated that improved oxygen ion mobility in the LSRZ material, which resulted from Sr substitution, was responsible for the reduction in carbon formation on the surface.

Haynes, D.J.; Berry, D.A.; Shekhawat, Dushyant; Spivey, J.J.

2008-07-31T23:59:59.000Z

222

Catalytic partial oxidation of n-tetradecane using pyrochlores: Effect of Rh and Sr substitution  

SciTech Connect

The catalytic partial oxidation (CPOX) of transportation fuels into synthesis gas (H2 + CO) for fuel cells is complicated by the large quantities of aromatics and sulfur-containing compounds commonly found in these fuels. Traditional supported metal catalysts are easily poisoned by these species which adsorb strongly onto the electron-rich metal clusters. The use of noble metal and/or oxide based catalyst systems may offer higher activity and stability, but only if the metal can be bound into a thermally stable structure. To that end, Rh metal was substituted into the structure of a lanthanum zirconate (LZ) pyrochlore to give La2RhyZr(2#2;y)O(7-j,) (LRZ) to produce a strongly bound, well-dispersed metal which is active for CPOX. A second catalyst was prepared in which Sr was substituted for a portion of La in the LRZ structure, producing La(2#2;x)SrxRhyZr(2#2;y)O(7-j) (LSRZ). Each of these pyrochlore catalysts, including the unsubstituted LZ, were characterized and screened for activity in the CPOX of ntetradecane (TD), which is a surrogate for linear paraffins typical of diesel fuel. Results were compared to a commercial Rh/g-Al2O3 catalyst. X-ray diffraction patterns of both the LZ and LRZ showed that each had the cubic unit-cell pyrochlore structure. However, substitution of Sr resulted in a binary perovskite-pyrochlore phase with a defect SrZrO3 phase. Hydrogen pulse chemisorption and temperature programmed reduction studies confirmed that Rh metal was substituted into the structure of the LRZ and LSRZ, and was reducible. Activity screening with the CPOX of TD showed that the Rh substituted in both LRZ and LSRZ is able to retain activity-producing essentially equilibrium synthesis gas yields, as was the Rh/g-Al2O3. Temperature programmed oxidation experiments performed after the CPOX of TD demonstrated that the amount of carbon was quantitatively similar for each catalyst (roughly 0.3 gcarbon/gcatalyst after each run), with the exception of LSRZ, which had significantly less carbon (0.17 gcarbon/gcatalyst). It is speculated that improved oxygen ion mobility in the LSRZ material, which resulted from Sr substitution, was responsible for the reduction in carbon formation on the surface.

Haynes, D.; Berry, D.; Shekhawat, D.; Spivey, J.

2008-01-01T23:59:59.000Z

223

Intrinsic Spin-Orbit Coupling in Superconducting Delta-Doped SrTiO3 Heterostructures  

SciTech Connect

We report the violation of the Pauli limit due to intrinsic spin-orbit coupling in SrTiO{sub 3} heterostructures. Via selective doping down to a few nanometers, a two-dimensional superconductor is formed, geometrically suppressing orbital pair-breaking. The spin-orbit scattering is exposed by the robust in-plane superconducting upper critical field, exceeding the Pauli limit by a factor of 4. Transport scattering times several orders of magnitude higher than for conventional thin film superconductors enables a new regime to be entered, where spin-orbit coupling effects arise non-perturbatively.

Bell, Christopher

2011-08-19T23:59:59.000Z

224

Weak interaction rates for Kr and Sr waiting-point nuclei under rp-process conditions  

E-Print Network (OSTI)

Weak interaction rates are studied in neutron deficient Kr and Sr waiting-point isotopes in ranges of densities and temperatures relevant for the rp-process. The nuclear structure is described within a microscopic model (deformed QRPA) that reproduces not only the half-lives but also the Gamow-Teller strength distributions recently measured. The various sensitivities of the decay rates to both density and temperature are discussed. Continuum electron capture is shown to contribute significantly to the weak rates at rp-process conditions.

P. Sarriguren

2009-10-06T23:59:59.000Z

225

Enhancing the electron mobility of SrTiO{sub 3} with strain  

Science Conference Proceedings (OSTI)

We demonstrate, using high-mobility SrTiO{sub 3} thin films grown by molecular beam epitaxy, that stress has a pronounced influence on the electron mobility in this prototype complex oxide. Moderate strains result in more than 300% increases in the electron mobilities with values exceeding 120 000 cm{sup 2}/V s and no apparent saturation in the mobility gains. The results point to a range of opportunities to tailor high-mobility oxide heterostructure properties and open up ways to explore oxide physics.

Jalan, Bharat; Moetakef, Pouya; Stemmer, Susanne [Materials Department, University of California, Santa Barbara, California 93106-5050 (United States); Allen, S. James [Department of Physics, University of California, Santa Barbara, California 93106-9530 (United States); Beltz, Glenn E. [Department of Mechanical Engineering, University of California, Santa Barbara, California 93106-5070 (United States)

2011-03-28T23:59:59.000Z

226

Luminescence Spectroscopy of Eu-doped (Ca,Sr)TiO{sub 3} Nanocrystals Prepared by Using Sonochemical Method  

Science Conference Proceedings (OSTI)

Perovskite-type compounds (ABO{sub 3}) of (Ca,Sr)TiO{sub 3} doped with trivalent europium (Eu{sup 3+}) were synthesized by sonochemical techniques. Powder X-ray diffraction measurement on (Ca,Sr)TiO{sub 3} were used to identify the perovskite crystal structure. The photoluminescence property in (Ca,Sr)TiO{sub 3} with europium substitution several atoms in the host lattice was also studied. Further, the photoluminescence spectra were taken at room temperature. The structural difference between fourth kinds of doped samples with different heating temperatures accounts for the intensification of the luminescence intensity. The presented measurements monitor the emission wavelengths of the Eu{sup 3+} with emission peaks at 593, 615 and 700 nm. The obtained results were discussed with respect to developed preparation method.

Kurniawan, C. [Chemistry Department of Semarang State University, Jl. Raya Sekaran Semarang (Indonesia); Prijamboedi, B. [Chemistry Department of Bandung Institute of Technology, Jl. Ganesha 10 Bandung (Indonesia)

2010-10-24T23:59:59.000Z

227

Growth of SrTiO{sub 3}(110) film by oxide molecular beam epitaxy with feedback control  

SciTech Connect

By controlling the growth of complex oxide films with atomic precision, emergent phenomena and fascinating properties have been discovered, and even been manipulated. With oxide molecular beam epitaxy (OMBE) we grow high-quality SrTiO{sub 3}(110) films by evaporating Sr and Ti metals with separate controls of the open/close timing of the shutters. The incident electron beam angle of the reflective high energy electron diffraction (RHEED) is adjusted to make the (01) beam sensitive to surface chemical concentration. By monitoring such an intensity, we tune the shutter timing to synchronize the evaporation amount of Sr and Ti in real-time. The intensity is further used as a feedback control signal for automatic growth optimization to fully compensate the possible fluctuation of the source flux rates upon extended growth. A 22 nm-thick film is obtained with the precision of metal cation stoichiometry better than 0.5%.

Feng Jiagui; Yang Fang; Yang Yang; Gu Lin; Guo Jiandong [Beijing National Laboratory for Condensed-Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Wang Zhiming [Beijing National Laboratory for Condensed-Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China); Institute of Applied Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10/134, A-1040 Vienna (Austria); Zhang Jiandi [Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70808 (United States)

2012-12-15T23:59:59.000Z

228

Hanford 100N Area Apatite Emplacement: Laboratory Results of Ca-Citrate-PO4 Solution Injection and Sr-90 Immobilization in 100N Sediments  

Science Conference Proceedings (OSTI)

This report summarizes laboratory scale studies investigating the remediation of Sr-90 by Ca-citrate-PO4 solution injection/infiltration to support field injection activities in the Hanford 100N area. This study is focused on experimentally testing whether this remediation technology can be effective under field scale conditions to mitigate Sr-90 migration 100N area sediments into the Columbia River. Sr-90 is found primarily adsorbed to sediments by ion exchange (99% adsorbed, thermodynamically more stable than Ca-apatite. Once the Sr-90 is in the apatite structure, Sr-90 will decay to Y-90 (29.1 y half-life) then Zr-90 (64.1 h half-life) without the potential for migration into the Columbia River. For this technology to be effective, sufficient apatite needs to be emplaced in sediments to incorporate Sr and Sr-90 for 300 years (~10 half-lives of Sr-90), and the rate of incorporation needs to exceed the natural groundwater flux rate of Sr in the 100N area. A primary objective of this study is to supply an injection sequence to deliver sufficient apatite into subsurface sediments that minimizes initial mobility of Sr-90, which occurs because the injection solution has a higher ionic strength compared to groundwater. This can be accomplished by sequential injections of low, then high concentration injection of Ca-citrate-PO4 solutions. Assessment of low concentration Ca-citrate-PO4, citrate-PO4, and PO4 solutions show greater Sr and Sr-90 incorporation during initial precipitation and less initial mobilization with solutions with low Ca2+ concentration. While all solutions showed nearly the same Sr uptake into apatite (14 to 17% by 2 weeks, 21% to 30% by 5 weeks), the incorporation efficiency (i.e., mM Sr incorporated per mM PO4 injected) was higher for solutions containing citrate. The Sr incorporation rate into apatite during initial precipitation (by 1 month) averaged 4.64 1.9 x 10-4 h-1 (half-life 1500 430 h, 8.85 x 10-7 mg Sr/day/mg apatite). The injection solution used in field injections #3 to #18 (10 mM PO4, 1 mM Ca, 2.5 mM citrate), which is deficient in Ca (a total of 16.7 mM needed to form apatite with 10 mM of PO4), resulted in the initial Sr and Ca peak (24 h) at 4.7x groundwater. By 30 days, the aqueous Sr concentration was 0.28x groundwater and Ca 0.43x groundwater, as both Sr and Ca are used to form initial apatite precipitates. Reactive transport simulation of the complex ion exchange, biodegradation, and precipitation processes showed that the initial Sr groundwater increase mobilized only 1.5% of the Sr mass in sediments. Citrate biodegradation, a necessary step in Ca-citrate-PO4 solutions forming apatite, had an average half-life of 50 h (at aquifer sediment/water ratio and temperature), and decreased an order of magnitude with sediment depth as the microbial biomass decreased five orders of magnitude. The rate of citrate biodegradation was relatively invariant with biomass and water saturation (50% to 100%, for vadose zone infiltration) possibly due to significant microbial injection using river water and subsurface microbial mobilization.

Szecsody, James E.; Burns, Carolyn A.; Moore, Robert C.; Fruchter, Jonathan S.; Vermeul, Vincent R.; Williams, Mark D.; Girvin, Donald C.; McKinley, James P.; Truex, Michael J.; Phillips, Jerry L.

2007-10-01T23:59:59.000Z

229

SR9807  

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

4, 1999 4, 1999 Media Contact: Bill Taylor (803) 725-2889 DOE Teams with State on Dedication and Management of 10,000 Acre Crackerneck Wildlife Management Area and Ecological Reserve Flag Ribbon Art Aiken, S.C. (June 24) -- Secretary of Energy Bill Richardson today designated 10,000 acres of the Savannah River Site (SRS) as a biological and wildlife refuge creating the Crackerneck Wildlife Management Area and Ecological Reserve. The agreement, co-signed by South Carolina Department of Natural Resources Director Dr. Paul Sandifer, gives the state overall management responsibility for the reserve. The creation of the Crackerneck Wildlife Management Area and Ecological Reserve will preserve the unique plant and wildlife habitat that lies on the site’s western boundary along the Savannah River, south of the town of Jackson, S.C. The Crackerneck area is recognized as a habitat for several wildlife species, including a variety of threatened and endangered animal species.

230

SR0209  

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

4, 2002 4, 2002 Media Contact: Bill Taylor (803) 725-2889 DOE/NNSA to Host Modern Pit Facility Media Availability Flag Ribbon Art U. S. Department of Energy National Nuclear Security Administration (NNSA) representatives will host a media availability at 4 p.m. on Monday, October 28, 2002, to discuss the upcoming public scoping meeting for the development of a Modern Pit Facility. The media availability session will be held at 4 p.m. in the North Augusta Community Center, 101 Brookside Drive, North Augusta, SC. The public scoping meeting will be held the following evening, October 29 at the same location. An informational open house and registration will begin at 6 p.m. with the formal scoping meeting set for 7 to 10 p.m. The meeting will provide the public with an opportunity to present comments, ask questions and discuss issues with NNSA representatives.

231

SR0012  

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

environmental impact statement. It will directly convert spent fuel containing highly enriched uranium, which is usable in nuclear weapons, into low enriched uranium ingots. These...

232

SR0601  

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

in the process of turning weapons-grade uranium into electricity. Under SRS' Highly Enriched Uranium (HEU) Blend Down program, the preparation and shipping of this material has...

233

SR0705  

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

a projected completion date of August 2008. Until that time, the existing coal-fired boilers will continue to supply steam to the sites A Area. The second upgrade project in...

234

SR9902  

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

8, 1999 8, 1999 Media Contact: Rick Ford (803) 725-2889 DOE To Present Savannah River Site's Upcoming Fiscal Year 2000 Budget Flag Ribbon Art Aiken, SC - (Jan. 28, 1999) The public is invited to view the Department of Energy's (DOE) Fiscal Year 2000 budget presentation that will be provided via satellite downlink starting at 1:00 p.m., Monday, February 1, 1999, at Aiken Technical College's Learning Resource Center amphitheater. The annual DOE budget roll out will feature an introduction by Secretary of Energy Bill Richardson. Following the Energy Secretary, there will be a presentation of the Department's Environmental Management budget which provides approximately 90 per cent of the operational funding for the Savannah River Site (SRS). Immediately following the Department's "roll out" event, there will be a detailed DOE Savannah River Operations Office presentation to explain how the Fiscal Year 2000 budget will be used at SRS. A question-and-answer session will be included.

235

SR0112  

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

News Release Logo News Release Logo For Immediate Release October 18, 2001 Media Contact: Julie Petersen (803) 725-2889 DOE ANNOUNCES RECORD OF DECISION ON SRS SALT WASTE PROCESSING ALTERNATIVES Flag Ribbon Art AIKEN, SC -- The U.S. Department of Energy (DOE) announced that it has selected Caustic Side Solvent Extraction as the Savannah River Site (SRS) Salt Processing preferred alternative for treating salt-bearing high-level radioactive waste. The Department's decision is outlined in a Record of Decision (ROD) that was published in the Federal Register earlier this week. A Supplemental Environmental Impact Statement (EIS) analyzed and evaluated the potential environmental impacts of four action alternatives for treating the high-level radioactive salt waste - by separating the high-activity salt waste from the low-activity salt waste - as a precursor for solidifying it in glass at the Savannah River Site's Defense Waste Processing Facility (DWPF). Based on this analysis, and the results of laboratory-scale research and development and independent reviews, DOE determined that any of the following alternatives evaluated could be implemented with minimum environmental impacts: Small Tank Precipitation, Ion Exchange, Solvent Extraction, and Direct Disposal in Grout. However, the Department selected the Caustic Side Solvent Extraction alternative because it has fewer technical uncertainties and DOE has experience with similar solvent extraction processes.

236

SR0206  

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

17, 2002 17, 2002 Media Contact: Julie Petersen (803) 725-2889 DOE Announces Conceptual Design Contracts For SRS Salt Waste Processing Facility Flag Ribbon Art Aiken, SC - Today the Department of Energy (DOE) took the first step in commissioning a Salt Waste Processing Facility (SWPF) at the Savannah River Site (SRS) by awarding two contracts for the facility's conceptual design. The SWPF is intended to process the high-level radioactive waste salt solutions currently stored in underground tanks at SRS. The Department awarded Engineering, Procurement and Construction (EPC) contracts to Parsons Infrastructure & Technology Group, Inc., and Foster Wheeler USA Corporation for preparation of conceptual designs (Phase I) for the SWPF. The contracts are being awarded today after a full and open competition. Four companies submitted proposals that were extensively reviewed by the Department.

237

SR0011  

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

26, 2000 26, 2000 Media Contact: Rick Ford (803) 725-2889 Energy Secretary Bill Richardson to Visit Savannah River Site Groundbreaking for Tritium Facility, 50th Anniversary on Agenda Flag Ribbon Art Media Advisory Secretary of Energy Bill Richardson will be at the Savannah River Site and Fort Discovery on Thursday, July 27, to break ground for the new $400 million Tritium Extraction Facility and celebrate the 50th Anniversary of the Savannah River Site. Secretary Richardson will be joined by Gen. John Gordon, Administrator of the National Nuclear Security Administration; Dr. Carolyn Huntoon, Assistant Secretary for Environmental Management; and Madelyn Creedon, Deputy Administrator for Defense Programs. Secretary Richardson will also participate in a celebration of the site's 50th anniversary. At the celebration, Richardson will make brief remarks, present local elementary students with "Hands on Science" certificates, view exhibits and attend a reception for community leaders.

238

SR0608  

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

November 30, 2006 Media Contact: James Giusti (803) 952-7697 Assistant Secretary for Environmental Management Marks SRS Achieving First Area Closure AIKEN, S.C., With the...

239

SR0005  

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

Release April 7, 2000 Media Contact: Rick Ford (803) 725-2889 Invitation To Cover Environmental Management Science Program National Workshop April 24-27 Flag Ribbon Art...

240

SR9914  

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

two 10,000 gallon fuel storage tanks that went into operation in the A and H areas. The E85 ethanol fuel, a mixture of 85 percent ethanol and 15 percent unleaded gasoline, will...

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


241

SR0011  

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

for Tritium Facility, 50th Anniversary on Agenda Flag Ribbon Art Media Advisory Secretary of Energy Bill Richardson will be at the Savannah River Site and Fort Discovery on...

242

SR0204  

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

Flag Ribbon Art AIKEN, SC; July 1 - Assistant Secretary for Environmental Management Jessie H. Roberson recently announced the designation of Jeffrey M. Allison as Acting...

243

SR0703  

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

March 23, 2007 Media Contact: James Giusti (803) 952-7697 james-r.giusti@srs.gov DOE Requests Proposals for Management and Operating Contractor at Savannah River Site WASHINGTON ,...

244

SR0606  

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

31, 2006 Media Contact: James Giusti (803) 952-7697 DOE Issues Draft Request for Proposals for Savannah River Site Contractor WASHINGTON , DC -- The Department of Energy (DOE)...

245

SR0701?  

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

8, 2007 Media Contact: James Giusti (803) 952-7697 james-r.giusti@srs.gov DOE Issues Draft Request for Proposals for SRS Liquid Waste Contract WASHINGTON , DC -- The U.S....

246

SR0603  

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

10, 2006 Media Contact: Julie Petersen (803) 952-7697 Startup of Second Nuclear Waste Storage Facility at the Savannah River Site DOE Managed Small Business Contract Safely...

247

SR0608  

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

30, 2006 Media Contact: James Giusti (803) 952-7697 Assistant Secretary for Environmental Management Marks SRS Achieving First Area Closure AIKEN, S.C., With the completion of...

248

SR0101  

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

8, 2001 Media Contact: Bill Taylor (803) 725-2889 Savannah River Site's Martin Luther King, Jr., Day Observance Flag Ribbon Art Media organizations are invited to attend and cover...

249

SR0701?  

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

to provide comments on the draft RFP. SRS is a key DOE Office of Environmental Management (EM) industrial complex located in South Carolina . The current EM focus at SRS is...

250

SR0008  

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

Wachenhut Receives Award Fee Flag Ribbon Art Note to Editors and News Directors The Department of Energy (DOE) has determined the performance award fee earned by Wackenhut...

251

SR0303  

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

(Region IV). The event will feature panel sessions, workshops and presentation on various environmental technologies, to include passive and natural remediation, cost-effective...

252

SR0706  

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

Small Business Conference in Washington , DC . Nominated by DOE-Headquarters Office of Environmental Management, Mr. Hepner was recognized for his efforts in furthering DOEs...

253

SR9911  

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

of its most challenging and uncertain times while safely accomplishing vital national security and environmental missions. As a result of his efforts, the Site has emerged with...

254

SR0001  

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

For Immediate Release January 12, 2000 Media Contact: Bill Taylor (803) 725-2889 Nuclear Security Oversight Panel Visits SRS As Part Of NSSA Tour Flag Ribbon Art Representatives...

255

SR9916  

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

draft SRS Strategic Plan 2000 has been developed with input from the Site's workforce and management team. The plan will be used to guide the missions and work performed in the...

256

SR0009  

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

June 8, 2000 Media Contact: Rick Ford (803) 725-2889 WSRC Receives Award Fee Flag Ribbon Art Note to Editors and News Directors The Department of Energy (DOE) has determined the...

257

SR0205  

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

is outlined in a Record of Decision (ROD) published in today's Federal Register. An Environmental Impact Statement (EIS) analyzed and evaluated the potential environmental impacts...

258

SR0108  

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

published an Amended Record of Decision (ROD) to the Savannah River Site (SRS) Waste Management Environmental Impact Statement (DOEEIS-0217). This ROD modifies earlier decisions...

259

SR9913  

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

10, 1999 Media Contact: Jim Giusti (803) 725-2889 DOE Initiates Investigation Into FB Line Worker Contamination Flag Ribbon Art Aiken, SC - The Department of Energy's Savannah...

260

SR9908  

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

improved safety and health performance through cooperative efforts among labor, management, and government and to provide for public recognition of outstanding safety and...

Note: This page contains sample records for the topic "js rogers sr" from the National Library of EnergyBeta (NLEBeta).
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261

SR9910  

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

2, 1999 Media Contact: Bill Taylor (803) 725-2889 Wackenhut Receives Award Fee Flag Ribbon Art Note to Editors and News Directors The Department of Energy (DOE) has determined the...

262

SR9904  

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

mostly plutonium -- began accumulating in the 1940s with the beginning of the nation's nuclear weapons program. A byproduct of the nuclear weapons production, this waste remains...

263

SR0302  

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

8, 2003 Media Contact: Rick Ford (803) 725-2889 DOE Announces WSI Award Fee Flag Ribbon Art The Department of Energy (DOE) has determined the performance award fee earned by...

264

SR0505  

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

Awarded for MOX Facility Site Preparation Work Flag Ribbon Art Aiken, S.C. - The National Nuclear Security Administration's (NNSA) plutonium disposition program has moved another...

265

SR0104  

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

The TRU waste is currently being managed and stored at the SRS Solid Waste Management Facility. WIPP is designed to permanently dispose of transuranic waste generated by...

266

SR9917  

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

6, 1999 Media Contact: Rick Ford (803) 725-2889 WSCR Receives Award Fee Flag Ribbon Art The Department of Energy (DOE) has determined the performance award fees earned by...

267

SR0106  

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

31, 2001 Media Contact: Rick Ford (803) 725-2889 DOE Announces Wackenhut Services Inc. Award Fee Flag Ribbon Art Note To Editors and News Directors: The Department of Energy (DOE)...

268

SR0708  

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

radioactive startup in November 2013. This estimate includes a risk assessment and management plan that defines project risks and contingencies to the project cost and schedule....

269

SR0605  

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

Until recently, these drums were covered with mounds of earth at SRSs central waste management facility. The drums were generated during decades of nuclear operations at SRS....

270

SR0002  

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

, 2000 Media Contact: Bill Taylor (803) 725-2889 General Eugene Habiger, DOE Security Czar To Visit SRS Flag Ribbon Art General Eugene Habiger (USAF Retired), the Department of...

271

SR0003  

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

4, 2000 Media Contact: Bill Taylor (803) 725-2889 DOE To Present Savannah River Site's Upcoming Fiscal Year 2001 Budget Flag Ribbon Art Aiken, SC -- The public is invited to view...

272

SR0103  

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

7, 2001 Media Contact: James Giusti (803) 725-2889 Note to Editors and News Directors Flag Ribbon Art On May 8, media representatives are invited to observe the first shipment of...

273

SR0015  

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

, 2000 Media Contact: Jim Giusti (803) 725-2889 WSRC Receives Award Fee Flag Ribbon Graphic Note to Editors and News Directors The Department of Energy (DOE) has determined the...

274

SR0107  

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

4, 2001 Media Contact: Bill Taylor (803) 725-2889 DOE & DOL Hold Public Meetings For Energy Employees Occupational Illness Compensation Program At Flag Ribbon Art Aiken SC (June...

275

SR0017  

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

1 and 78, starting at 7:00 p.m. Dr. Michaels oversees health and safety concerns for nuclear weapons workers as part of his responsibilities at the Department of Energy. He is an...

276

SR0110  

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

In North Augusta, SC Flag Ribbon Art Aiken SC (July 24) -- A resource center where nuclear weapons workers can go for help to file claims for compensation under the Energy...

277

SR9805  

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

16, 1999 Media Contact: Rick Ford (803) 725-2889 WSCR Receives Award Fee Flag Ribbon Art The Department of Energy (DOE) has determined the performance award fees earned by...

278

SR0208  

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

history of one of the major research and production facilities in the United States' nuclear weapons complex. Social and cultural themes showing the many changes SRS brought to...

279

SR0007  

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

Environmental Cleanup Technology Conference To Be Held Flag Ribbon Art The Savannah River Operations Office of the Department of Energy is hosting the Environmental Restoration...

280

SR0203  

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

(DOE) Savannah River Site (SRS) announced today the availability of the Final Environmental Impact Statement (EIS) on the proposed closing of additional high-level waste...

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281

SR9901  

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

services for SRS include: An armed paramilitary protective force, safeguarding special nuclear materials, access control, law enforcement, criminal investigations, traffic...

282

SR0804  

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

today. "The Savannah River Site has been authorized by the Department and the National Nuclear Security Administration (NNSA) to resume all work that involves the CREM...

283

SR0006  

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

environmental cleanup science and technology are on display at the Department of Energy Environmental Management Science Program (EMSP) National Workshop in Atlanta, GA on April...

284

SR0207  

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

30, 2002 Media Contact: Julie Petersen (803) 725-2889 Notice To Editors: DOE Releases SRS History Book Flag Ribbon Art WHO: U.S. Department of Energy (DOE) Savannah River...

285

SR0704  

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

April 13, 2007 Media Contact: Julie Petersen (803) 952-7697 julie.petersen@srs.gov Savannah River Site Employees Honored with Presidents Volunteer Service Award AIKEN, S.C., ...

286

SR0501  

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

conditions at SRS and the conditions the Department plans to achieve through the Site's Environmental Management (EM) Cleanup Project ("end states"). It is designed to facilitate...

287

SR0005  

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

April 7, 2000 Media Contact: Rick Ford (803) 725-2889 Invitation To Cover Environmental Management Science Program National Workshop April 24-27 Flag Ribbon Art NOTE TO EDITORS AND...

288

SR0013  

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

Human Resources Management and Development Division (HRM&DD), and Eric Adams, Personnel Management Specialist, HRM&DD, the persons primarily responsible for the success of this...

289

SR9909  

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

occupational safety and health performance through cooperative efforts among labor, management, and government and to provide for public recognition of outstanding safety and...

290

SR9912  

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

17, 1999 Media Contact: Bill Taylor (803) 725-2889 DOE Security Czar To Visit SRS August 18, 1999 Flag Ribbon Art General Eugene Habiger (USAF Ret.), the Department of Energy's...

291

SR0018  

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

Rick Ford (803) 725-2889 Wackenhut Receives Award Fee Flag Ribbon Graphic The Department of Energy (DOE) has determined the performance award fee earned by Wackenhut Services,...

292

SR0010  

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

1, 2000 Media Contact: Jim Giusti (803) 725-2889 DOE Hosts Radioactive Materials Transportation Workshop Flag Ribbon Art Note To Editors And News Directors: Aiken, SC - The...

293

SR0004  

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

corrective action to ensure feedback and improvement aspects of integrated safety management are effectively implemented. Wackenhut Services, Inc. (WSI) also needs to...

294

SR0603  

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

firm in Orchard Park , New York . DOE Principal Deputy Assistant Secretary for Environmental Management Charles Anderson and DOE-Savannah River Operations Office Manager...

295

SR0704  

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

Affairs; and Dr. Ines Triay, DOE Deputy Chief Operating Officer, Office of Environmental Management. David Wilson, South Carolina Department of Health and...

296

SR9806  

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

invited guests and media will have opportunity to ride through the wildlife management and ecological reserve. WHEN: Wednesday, June 24, 1999 WHERE: DOE Savannah River...

297

SR0016  

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

worker's compensation benefits. Dr. Michaels oversees health and safety concerns for nuclear weapons workers as part of his responsibilities at the Department of Energy. He is an...

298

SR0705  

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

toward the Department meeting President Bushs January 2007 Executive Order on Federal Environmental, Energy and Transportation Management. President Bush has made increasing...

299

SR0201  

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

February 5, 2001 Media Contact: Bill Taylor (803) 725-2889 SRS Environmental Management FY2003 Budget and Top-To-Bottom Review Presented At Friday Meeting Flag Ribbon Art The...

300

SR0503  

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

Site Preparation Begins at Savannah River Site Flag Ribbon Art Aiken, S.C. - The National Nuclear Security Administration's (NNSA) plutonium disposition program today moved another...

Note: This page contains sample records for the topic "js rogers sr" from the National Library of EnergyBeta (NLEBeta).
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301

SR9902  

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

Rick Ford (803) 725-2889 DOE To Present Savannah River Site's Upcoming Fiscal Year 2000 Budget Flag Ribbon Art Aiken, SC - (Jan. 28, 1999) The public is invited to view the...

302

SR0003  

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

Bill Taylor (803) 725-2889 DOE To Present Savannah River Site's Upcoming Fiscal Year 2001 Budget Flag Ribbon Art Aiken, SC -- The public is invited to view the Department of...

303

SR9914  

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

fuel immediately. Ethanol, a renewable energy source, is made from American grown corn by-products. The E85 ethanol fuel blends ethanol with unleaded gasoline and other...

304

SR9916  

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

Media Contact: Bill Taylor (803) 725-2889 SRS Seeks Public Input On Updated Strategic Plan Flag Ribbon Art Aiken, SC (Dec. 15, 1999)--The Department of Energy's Savannah River...

305

SR0007  

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

To Be Held Flag Ribbon Art The Savannah River Operations Office of the Department of Energy is hosting the Environmental Restoration Technology End User Conference on June 6-8...

306

SR0304  

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

Everet Beckner, Deputy Administrator for Defense Programs, of the National Nuclear Security Administration congratulated more than 200 craftsmen and other personnel who...

307

SR0604  

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

of DOEs legacy neptunium solutions marks the successful completion of all 54 DNFSB nuclear material stabilization commitments. Materials stabilized under the DNFSBs...

308

SR0012  

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

light to the SRS workforce to put the melt and dilute technology in place to treat spent nuclear fuel," said Assistant Secretary of Environmental Management Carolyn Huntoon. "This...

309

SR0601  

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

Makes 200th Shipment of Low Enriched Uranium AIKEN, S.C. -- A joint National Nuclear Security Administration and Office of Environmental Management nonproliferation program at the...

310

Nanometer-scale striped surface terminations on fractured SrTiO{sub 3} surfaces.  

SciTech Connect

Using cross-sectional scanning tunneling microscopy on in situ fractured SrTiO{sub 3}, one of the most commonly used substrates for the growth of complex oxide thin films and superlattices, atomically smooth terraces have been observed on (001) surfaces. Furthermore, it was discovered that fracturing this material at room temperature results in the formation of stripe patterned domains having characteristic widths ({approx}10 to {approx}20 nm) of alternating surface terminations that extend over a long range. Spatial characterization utilizing spectroscopy techniques revealed a strong contrast in the electronic structure of the two domains. Combining these results with topographic data, we are able to assign both TiO{sub 2} and SrO terminations to their respective domains. The results of this experiment reveal that fracturing this material leads to reproducibly flat surfaces that can be characterized at the atomic-scale and suggest that this technique can be utilized for the study of technologically relevant complex oxide interfaces.

Guisinger, N. P.; Santos, T. S.; Guest, J. R.; Chien, T.-Y; Bhattacharya, A.; Freeland, J. W.; Bode, M.

2009-12-01T23:59:59.000Z

311

Catalytic partial oxidation of n-tetradecane on Rh and Sr substituted pyrochlores  

Science Conference Proceedings (OSTI)

Catalyst deactivation by high levels of sulfur and aromatics limits the catalytic partial oxidation (CPOX) of diesel fuel into a H2-rich stream for fuel cells. These species poison traditional supported metal catalysts because they adsorb strongly to electron dense metal clusters and promote the formation of carbon on the surface. In this work, Rh + Sr are substituted into lanthanum zirconate (LZ) pyrochlore (La2Zr2O7) to give an La(2-x)SrxRhyZr(2-y)O(7- ) (LSRZ) catalyst. The resistance to deactivation and carbon formation were examined by the CPOX of a mixture of 5 wt% 1-methylnaphthalene + 1000 ppmw dibenzothiophene in n-tetradecane. The results were compared to a commercial Rh/-Al2O3 catalyst. In the presence of these contaminants, the activity of the LSRZ was only kinetically inhibited, which is thought to be attributable to the oxygen-ion conductivity that results from Sr substitution into the pyrochlore structure. Rh/-Al2O3 was deactivated, likely due to significant carbon accumulation on/near the Rh metal

Haynes, D.J.; Berry, D.A.; Shekhawat, Dushyant; Gardner, T.H.; Spivey, J.J.

2007-10-01T23:59:59.000Z

312

Switchable Induced Polarization in LaAlO3/SrTiO3 Heterostructures  

SciTech Connect

Demonstration of a tunable conductivity of the LaAlO3/SrTiO3 interfaces drew significant attention to the development of oxide electronic structures where electronic confinement can be reduced to the nanometer range. While the mechanisms for the conductivity modulation are quite different and include metal insulator phase transition and surface charge writing, generally it is implied that this effect is a result of electrical modification of the LaAlO3 surface (either due to electrochemical dissociation of surface adsorbates or free charge deposition) leading to the change in the twodimensional electron gas (2DEG) density at the LaAlO3/SrTiO3 (LAO/STO) interface. In this paper, using piezoresponse force microscopy we demonstrate a switchable electromechanical response of the LAO overlayer, which we attribute to the motion of oxygen vacancies through the LAO layer thickness. These electrically induced reversible changes in bulk stoichiometry of the LAO layer are a signature of a possible additional mechanism for nanoscale oxide 2DEG control on LAO/STO interfaces.

Bark, C [University of Wisconsin, Madison; Sharma, P. [University of Nebraska; Wang, Y. [University of Nebraska; Baek, Seung Hyub [University of Wisconsin, Madison; Lee, S. [University of Wisconsin, Madison; Ryu, S. [University of Wisconsin, Madison; Folkman, C H [University of Wisconsin; Paudel, Tula R [ORNL; Kumar, Amit [ORNL; Kalinin, Sergei V [ORNL; Sokolov, A. [University of Nebraska; Tsymbal, E Y [University of Nebraska, Lincoln; Rzchowski, M [University of Wisconsin; Gruverman, Alexei [ORNL; Eom, Professor Chang-Beom [University of Wisconsin, Madison

2012-01-01T23:59:59.000Z

313

Phase stability of the mixed-conducting Sr-Fe-Co-O system.  

DOE Green Energy (OSTI)

Mixed-conducting ceramic oxides have potential uses in high-temperature electrochemical applications such as solid oxide fuel cells, batteries, sensors, and oxygen-permeable membranes. The Sr-Fe-Co-O system combines high electronic/ionic conductivity with appreciable oxygen permeability at elevated temperatures. Dense ceramic membranes made of this material can be used to separate high-purity oxygen from air without the need for external electrical circuitry, or to partially oxidize methane to produce syngas. Samples of Sr{sub 2}Fe{sub 3{minus}x}Co{sub x}O{sub y} (with x = 0, 0.6, 1.0, and 1.4) were prepared by solid-state reaction method in atmospheres with various oxygen partial pressures (pO{sub 2}) and were characterized by X-ray diffraction, scanning electron microscopy, and electrical conductivity testing. Phase components of the sample are dependent on cobalt concentration and pO{sub 2}. Electrical conductivity increases with increasing temperature and cobalt content in the material.

Ma, B.; Balachandran, U.; Hodges, J. P.; Jorgensen, J. D.; Miller, D. J.; Richardson, J. W., Jr.

1997-12-12T23:59:59.000Z

314

Highly selective inorganic crystalline ion-exchange material for Sr{sup 2+} in acidic solutions  

SciTech Connect

We report a novel antimony titanate ion exchange material, stable in highly acidic conditions and selective to strontium against competing cations, with possible applications at Defense Waste Sites. Its development was based on good selectivity for Cs and Sr by the CSTs and literature information on the ion exchange properties of antimony compounds. This new material has been tested for the selective removal of parts per million level concentrations of Sr{sup 2+} ions from solutions with a pH in the range of 1 M HNO{sub 3} tO 5.7 M Na{sup +}/0.6 M OH{sup -} (with the most important results in the highly acidic regimes). This doped titanate has been characterized with an array of techniques, including equilibrium distribution coefficient (K{sub d}) determinations over a wide pH range, power X-ray diffraction, TEM, BET, direct-current plasma (DCP), and thermal analyses. 13 refs., 2 figs., 2 tabs.

Nenoff, T.M.; Miller, J.E.; Thoma, S.G.; Trudell, D.E. [Sandia National Lab., Albuquerque, NM (United States)] [Sandia National Lab., Albuquerque, NM (United States)

1996-12-01T23:59:59.000Z

315

The magnetic and crystal structures of Sr2IrO4: A neutron diffraction study  

SciTech Connect

We report a single-crystal neutron diffraction study of the layered Sr2IrO4. This work unambigu- ously determines the magnetic and crystal structures, and reveals that the spin orientation rigidly tracks the staggered rotation of the IrO6 octahedra in Sr2IrO4. The long-range antiferromagnetic order has a canted spin configuration with an ordered moment of 0.208(3) B/Ir site within the basal plane; a detailed examination of the spin canting yields 0.202(3) and 0.049(2) B/site for the a-axis and the b-axis, respectively. It is intriguing that forbidden nuclear reflections of space group I41/acd are also observed in a wide temperature range from 4 K to 600 K, which suggests a reduced crystal structure symmetry. This neutron scattering work provides a direct, well-refined experimen- tal characterization of the magnetic and crystal structures that are crucial to the understanding of the unconventional magnetism existent in this unusual magnetic insulator.

Ye, Feng [ORNL; Chi, Songxue [ORNL; Chakoumakos, Bryan C [ORNL; Fernandez-Baca, Jaime A [ORNL; Qi, Tongfei [University of Kentucky; Cao, Gang [University of Kentucky

2013-01-01T23:59:59.000Z

316

Ion mass dependence of the etch yield of SrTiO{sub 3} films in reactive plasmas  

Science Conference Proceedings (OSTI)

The influence of the positive ion composition on the ion-assisted chemical etch yield of SrTiO{sub 3} films in Ar/SF{sub 6} plasmas is investigated using a parametric approach. The etch yield is found to decrease as the concentration fraction of molecular ions increases. Introducing the concept of effective mass for both ions and SrTiO{sub 3}, these experimental results are quantitatively explained in the framework of a well-established model originally developed to describe the sputtering of single-atom materials by noble monoatomic ions.

Langlois, O.; Stafford, L.; Margot, J.; Chaker, M. [Departement de Physique, Universite de Montreal, Montreal, Quebec (Canada); INRS-Energie, Materiaux et Telecommunications, Varennes, Quebec (Canada)

2005-09-26T23:59:59.000Z

317

Pacific Northwest Laboratory monthly report to the Nuclear Research and Applications Division for August 1976. [WESF-encapsulated /sup 90/SrF/sub 2/  

DOE Green Energy (OSTI)

At Hanford, strontium is separated from high-level wastes, then converted to the fluoride, and doubly encapsulated in small, high-integrity containers for subsequent long-term storage. The fluoride conversion, encapsulation and storage take place in the Waste Encapsulation and Storage Facilities (WESF). This encapsulated strontium fluoride represents an economical source of /sup 90/Sr if the WESF capsule can be licensed for heat source applications under anticipated use conditions. The objectives of this program are to obtain the data needed to license /sup 90/SrF/sub 2/ heat sources and specifically the WESF /sup 90/SrF/sub 2/ capsules. Research progress is reported on long-term compatibility of TZM with /sup 90/SrF/sub 2/, short-term compatibility of cast iron and Hafnalloy with /sup 90/SrF/sub 2/, and the oxidation resistance and seawater corrosion of Hastelloy C-4. (TFD)

Fullam, H.T.

1976-09-01T23:59:59.000Z

318

Determination of an Environmental Background Level of Sr-90 in Urine for the Hanford Bioassay Program Determination of an Environmental Background Level of Sr-90 in Urine for the Hanford Bioassay Program  

SciTech Connect

During the decommissioning and maintenance of some of the facilities at the U.S. Department of Energy Hanford Site in Washington State, workers have potential for a 90Sr intake. However, because of worldwide radioactive fallout, 90Sr is present in our environment, and can be detectable in routine urine bioassay samples. It is important for the Hanford Site bioassay program to discern an occupational intake from a non-occupational environmental one. A detailed study of the background 90Sr in the urine of unexposed Hanford workers was performed. A survey of the Hanford Site bioassay database found 128 Hanford workers who were hired between 1997 and 2002 and who had a very low potential for an occupational exposure prior to the baseline strontium urinalysis. Each urinalysis sample represented excretion during an approximate 24-hr period. The arithmetic mean value for the 128 pre-exposure baselines was 3.6 5.1 mBq d-1. The 90Sr activities in urine varied from -12 to 20 mBq. The 99th percentile result was 16.4 mBqd-1, which was interpreted to mean that 1% of Hanford workers not occupationally exposed to strontium might exceed 16.4 mBq d-1.

Antonio, Cheryl L.; Rivard, James W.

2009-11-01T23:59:59.000Z

319

Catalytic partial oxidation of n-tetradecane using Rh and Sr substituted pyrochlores: Effects of sulfur  

SciTech Connect

The presence of high levels of organosulfur compounds hinders the catalytic partial oxidation (CPOX) of logistic fuels into a H2-rich gas stream for fuel cells. These species poison traditional supported metal catalysts because the sulfur adsorbs strongly to electron dense metal clusters and promotes the formation of carbon on the surface. To minimize deactivation by sulfur, two substituted lanthanum zirconate (LZ) pyrochlores (La2Zr2O7), identified in a previous study [D.J. Haynes, D.A. Berry, D. Shekhawat, J.J. Spivey, Catal. Today 136 (2008) 206], were investigated: (a) LaRhZr (LRZ) and LaSr RhZr (LSRZ). Using unsubstituted lanthanum zirconate and a conventional 0.5 wt% Rh/g-Al2O3 as comparisons, these four catalysts were exposed to a feed containing 1000 ppmw dibenzothiophene (DBT) in n-tetradecane (TD). DBT rapidly deactivated both the 0.5 wt% Rh/g-Al2O3 and LZ. The LRZ catalyst experienced a gradual deactivation, suggesting that Rh substitution into the pyrochlore structure, by itself, cannot completely eliminate deactivation by sulfur. However, the additional substitution of Sr stabilized yields of H2 and CO in the presence of DBT at levels only slightly below those observed without sulfur in the feed. After sulfur was removed from the feed, each catalyst was able to recover some activity. The recovery appears to be linked to carbon formed on active sites. The 0.5 wt% Rh/g-Al2O3, LZ, and LRZ all had comparable amounts of carbon formed on the surface: 0.90, 0.80 and 0.86 gcarbon/gcat, respectively. Of these three catalysts, only the LRZ was able to recover a significant portion of initial activity, suggesting that the carbon formed indiscriminately on the surface, and not solely on the active sites. LSRZ was able to regain almost its initial activity once sulfur was removed from the feed, and had the least amount of carbon on the surface (0.30 gcarbon/gcat). It is hypothesized that oxygen-ion mobility, which results from Sr substitution, reduces carbon formation and the deactivation by sulfur.

Haynes, D.; Berry, D.; Shekhawat, D. Spivey, J.

2009-01-01T23:59:59.000Z

320

Enhanced photoluminescence from free-standing microstructures fabricated on MBE grown PbSe-PbSrSe MQW structure  

Science Conference Proceedings (OSTI)

Fabrication of microrods from multi-quantum well (MQW) PbSe-PbSrSe structure grown in molecular beam epitaxy (MBE) followed by its morphological as well as optical characterizations are described. Pulsed PL intensity is increased by 64 times per unit ... Keywords: MBE, MQW microrod, MQW microtube, Photoluminescence, SEM

S. Mukherjee; S. Jain; F. Zhao; J. P. Kar; D. Li; Z. Shi

2008-04-01T23:59:59.000Z

Note: This page contains sample records for the topic "js rogers sr" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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We encourage you to perform a real-time search of NLEBeta
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321

Native SrTiO3 (001) surface layer from resonant Ti L2,3 reflectance spectroscopy  

SciTech Connect

We quantitatively model resonant Ti L2,3 reflectivity Rs,p(q, hn) from several SrTiO3 (001) single crystals having different initial surface preparations and stored in ambient conditions before and between measurements. All samples exhibit unexpected 300 K Rs(hn) - Rp(hn) anisotropy corresponding to weak linear dichroism and tetragonal distortion of the TiO6 octahedra indicating a surface layer with properties different from cubic SrTiO3. Oscillations in Rs(q) confirm a ubiquitous surface layer 2-3 nm thick that evolves over a range of time scales. Resonant optical constant spectra derived from Rs,p(hn) assuming a uniform sample are refined using a single surface layer to fit measured Rs(q). Differences in surface layer and bulk optical properties indicate that the surface is significantly depleted in Sr and enriched in Ti and O. While consistent with the tendency of SrTiO3 surfaces toward non-stoichiometry, this layer does not conform simply to existing models for the near surface region and apparently forms via room temperature surface reactions with the ambient. This new quantitative spectral modeling approach is generally applicable and has potential to study near-surface properties of a variety of systems with unique chemical and electronic sensitivities.

Valvidares, Manuel; Huijben, Mark; Yu, Pu; Ramesh, Ramamoorthy; Kortright, Jeffrey

2010-11-03T23:59:59.000Z

322

Absolute light yield measurements on SrF$_{2}$ and BaF$_{2}$ doped with rare earth ions  

E-Print Network (OSTI)

Results of absolute light output measurements on strontium and barium fluoride doped with PrF$_3$ and CeF$_3$ are presented and compared with scintillators having well-known light output (NaI-Tl, CsI-Tl, BGO). For pure SrF$_2$ crystal we obtain a value of about 28600 photons/MeV.

Shendrik, Roman

2013-01-01T23:59:59.000Z

323

Direct epitaxial growth of InP based heterostructures on SrTiO3/Si(001) crystalline templates  

Science Conference Proceedings (OSTI)

A study of the structural and optical properties of an InAsP/InP quantum well heterostructure grown on a crystalline SrTiO"3 (STO)/Si(001) template is presented. The mismatch between InP and STO is fully accommodated by an array of geometric dislocations ... Keywords: Accommodation, Highly dissimilar systems, Molecular beam epitaxiy, Monolithic integration

G. Saint-Girons; J. Cheng; A. Chettaoui; J. Penuelas; B. Gobaut; P. Regreny; L. Largeau; G. Patriarche; Claude Botella; G. Hollinger

2011-04-01T23:59:59.000Z

324

Special Report: OAS-SR-10-02 | Department of Energy  

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

2 2 Special Report: OAS-SR-10-02 July 29, 2010 Resolution of Questioned, Unresolved and Potentially Unallowable Costs Incurred in Support of the YuccaMountain Project The Nuclear Waste Policy Act Amendments of 1987 designated Yucca Mountain in Southwestern Nevada as the site for a national geologic repository for high-level nuclear waste. The Department of Energy assigned management of the program to the Office of Civilian Nuclear Waste Management (OCRWM). Bechtel SAIC Company, LLC (BSC) was the management and operating contractor for OCRWM's Yucca Mountain Project from April 1, 2001, until its contract with the Department ended on March 31, 2009. In early 2009, the Department indicated that it intended to terminate the Project and is moving to shut down all activities by September 30, 2010.

325

Design and performance of a multiterawatt Cr:LiSrAlF[sub 6] laser system  

Science Conference Proceedings (OSTI)

We have developed a compact, flash-lamp-pumped Cr:LiSrAlF[sub 6] (Cr:LiSAF) laser system capable of producing femtosecond pulses exhibiting peak powers greater than 2 TW. Chirped pulse amplification in a Cr:LiSAF regenerative amplifier produces 15-mJ pulses at a 5-Hz repetition rate. Further amplification in Cr:LiSAF yields recompressed pulse energies of 280 mJ and a pulse duration of less than 135 fs at a 1.0-Hz repetition rate. We describe the design and performance of this laser as well as the optimization of chirped pulse amplification in flash-lamp-pumped Cr:LiSAF.

Ditmire, T.; Nguyen, H.; Perry, M.D. (Lawrence Livermore National Laboratory, P.O. Box 808, L-443, Livermore, California 94550 (United States))

1994-04-01T23:59:59.000Z

326

INTERFACE DISORDER CONTROLLED SUPERCONDUCTIVITY YBa2Cu3O7 / SrTiO3 SUPERLATTICES  

SciTech Connect

We report on the coherent growth of ultrathin YBa2Cu3O7 (YBCO) layers on SrTiO3 (STO) in YBCO/STO superlattices. The termination plane of the STO is TiO2 and the CuO chains are missing at the interface. Disorder (steps) at the STO interface cause alterations of the stacking sequence of the intra-cell YBCO atomic layers. Stacking faults give rise to antiphase boundaries which break the continuity of the CuO2 planes and depress superconductivity. We show that superconductivity is directly controlled by interface disorder outlining the importance of pair breaking and localization by disorder in ultrathin layers.

Garcia-Barriocanal, Javier [Universidad Complutense, Spain; Rivera-Calzada, Alberto [Universidad Complutense, Spain; Sefrioui, Z. [Universidad Complutense, Spain; Arias, D [Universidad Complutense, Spain; Varela del Arco, Maria [ORNL; Leon, C. [Universidad Complutense, Spain; Pennycook, Stephen J [ORNL; Santamaria, J. [Universidad Complutense, Spain

2013-01-01T23:59:59.000Z

327

Uptakes of Cs and Sr on San Joaquin soil measured following ASTM method C1733.  

SciTech Connect

Series of tests were conducted following ASTM Standard Procedure C1733 to evaluate the repeatability of the test and the effects of several test parameters, including the solution-to-soil mass ratio, test duration, pH, and the concentrations of contaminants in the solution. This standard procedure is recommended for measuring the distribution coefficient (K{sub d}) of a contaminant in a specific soil/groundwater system. One objective of the current tests was to identify experimental conditions that can be used in future interlaboratory studies to determine the reproducibility of the test method. This includes the recommendation of a standard soil, the range of contaminant concentrations and solution matrix, and various test parameters. Quantifying the uncertainty in the distribution coefficient that can be attributed to the test procedure itself allows the differences in measured values to be associated with differences in the natural systems being studied. Tests were conducted to measure the uptake of Cs and Sr dissolved as CsCl and Sr(NO{sub 3}){sub 2} in a dilute NaHCO{sub 3}/SiO{sub 2} solution (representing contaminants in a silicate groundwater) by a NIST standard reference material of San Joaquin soil (SRM 2709a). Tests were run to measure the repeatability of the method and the sensitivity of the test response to the reaction time, the mass of soil used (at a constant soil-to-solution ratio), the solution pH, and the contaminant concentration. All tests were conducted in screw-top Teflon vessels at 30 C in an oven. All solutions were passed through a 0.45-{mu}m pore size cellulose acetate membrane filter and stabilized with nitric acid prior to analysis with inductively-coupled plasma mass spectrometry (ICP-MS). Scoping tests with soil in demineralized water resulted in a solution pH of about 8.0 and the release of small amounts of Sr from the soil. Solutions were made with targeted concentrations of 1 x 10{sup -6} m, 1 x 10{sup -5} m, 2.5 x 10{sup -5} m, 5 x 10{sup -5} m, 1 x 10{sup -4} m, and 5 x 10{sup -4} m to measure the effects of the Cs and Sr concentrations on their uptake by the soil. The pH values of all solutions were adjusted to about pH 8.5 so that the effects of pH and concentration could be measured separately. The 1 x 10{sup -4} m solutions were used to measure the repeatability of the test and the effects of duration, scale, and imposed pH on the test response.

Ebert, W.L.; Petri, E.T. (Chemical Sciences and Engineering Division)

2012-04-04T23:59:59.000Z

328

Gamma-ray decay schemes for $sup 93$Kr, $sup 93$Rb, and $sup 93$Sr  

SciTech Connect

A study of the gamma-ray de-excitation following the beta decays of $sup 93$Kr, $sup 93$Rb, and $sup 93$Sr using the TRISTAN on-line separator facility is reported. Gamma-ray singles and gamma-gamma coincidence measurements were made using Ge(Li) detectors. Of the 162 gamma rays observed in the decay of $sup 93$Sr, 143, representing more than 99 percent of the total gamma-ray intensity observed, were placed in a level scheme containing 36 levels. For the decay of $sup 93$Rb, 243 gamma rays were observed, of which 231 are placed in a level scheme consisting of 74 levels. This again represents a placement of over 99 percent of the total gamma-ray intensity measured. In the case of the $sup 93$Kr decay approximately 98.5 percent of the observed gamma-ray intensity has been accounted for by the proposed level scheme. This results from the placement of 203 of the 217 gamma rays assigned to this decay in a level scheme comprising 56 levels. Beta-branching for these decays were determined from transition intensity balances. Spin and parity assignments were proposed, whenever possible, on the basis of gamma-ray transition probabilities and deduced log ft values. A comparison is made with the available reaction data for the $sup 93$Y level scheme. In all cases an attempt has been made to explain some of the levels in terms of the nuclear shell model and decay systematics. 18 figures, 20 tables, 68 references. (auth)

Bischof, C.J.

1976-01-01T23:59:59.000Z

329

Nanostructured crystals of Sr{sub 1-x}R{sub x}F{sub 2+x} fluorite phases and their ordering: 6. Microindentation analysis of crystals  

SciTech Connect

Hardness, crack resistance, brittleness, and effective fracture energy have been studied for crystals of 24 fluorite phases Sr{sub 1-x}R{sub x}F{sub 2+x} (R are 14 rare earth elements (REEs); 0 < x {<=} 0.5) and SrF2 grown by the Bridgman method from a melt. These characteristics change nonlinearly with an increase in the REE content for Sr{sub 1-x}R{sub x}F{sub 2+x} (0 < x {<=} 0.5) with R = La, Nd, Sm, Gd, and Lu; it is maximum in the range x < 0.1 for all REEs. The changes in a number of REEs have been traced for an isoconcentration series of Sr{sub 0.90}R{sub 0.10}F{sub 2.10} crystals (R = La, Nd, Sm, Gd, Ho, Er-Lu, or Y) and crystals (similar in composition) with R = Tb and Dy. The hardness of Sr{sub 1-x}R{sub x}F{sub 2+x} crystals is higher by a factor of {approx}2-3 than that of SrF2. The effect of decrease in microstresses in SrF{sub 2} crystals is confirmed by the isomorphic introduction of R{sup 3+} ions into this crystalline matrix.

Gryaznov, M. Yu., E-mail: fluorides@ns.crys.ras.ru; Shotin, S. V.; Chuvil'deev, V. N.; Marychev, M. O. [Nizhni Novgorod State University, Physicotechnical Research Institute (Russian Federation); Sul'yanova, E. A.; Sul'yanov, S. N.; Sobolev, B. P. [Russian Academy of Sciences, Shubnikov Institute of Crystallography (Russian Federation)

2012-01-15T23:59:59.000Z

330

Peer Reviewed Archival Publications  

E-Print Network (OSTI)

. (Roger) Chen Chen, H.L. and Y. He* . 2001. Analysis of an acoustic surface waveguide for AE monitoring, and A.L. Miller. 2001. SO2 removal by leaching coal pyrite. Energy and Fuels 15: 470-476. Dady B. Dadyburjor Zhu+ , J.S., L.P. Norcio, E.L. Kugler, D.B. Dadyburjor, J.L. Yang+ , Z.Y. Liu+ , and B. Zhong

Mohaghegh, Shahab

331

Structure and optical properties of a noncentrosymmetric borate RbSr{sub 4}(BO{sub 3}){sub 3}  

SciTech Connect

A new noncentrosymmetric borate, RbSr{sub 4}(BO{sub 3}){sub 3} (abbreviated as RSBO), has been grown from Rb{sub 2}O--B{sub 2}O{sub 3}--RbF flux and its crystal structure was determined by single crystal x-ray diffraction. It crystallizes in space group Ama2 with cell parameters of a=11.128(10) A, b=12.155(15) A, c=6.952(7) A, Z=4. The basic structural units are isolated planar BO{sub 3} groups. Second harmonic generation (SHG) test of the title compound by the Kurtz-Perry method shows that RSBO can be phase matchable with an effective SHG coefficient about two-thirds as large as that of KH{sub 2}PO{sub 4} (KDP). Finally, based on the anionic group approximation, the optical properties of the title compound are compared with those of the structure-related apatite-like compounds with the formula 'A{sub 5}(TO{sub n}){sub 3}X'. - Graphical abstract: RbSr{sub 4}(BO{sub 3}){sub 3} and some other borate NLO compounds, namely Ca{sub 5}(BO{sub 3}){sub 3}F RCa{sub 4}(BO{sub 3}){sub 3}O (R=Y or Gd) and Na{sub 3}La{sub 2}(BO{sub 3}){sub 3} can be viewed as the derivatives of apatite. They have similar formula composed of five cations and three anion groups (we call them 5/3 structures). The detailed SHG coefficients and optical properties of the apatite-like NLO crystals were compared and summarized. Highlights: Black-Right-Pointing-Pointer A new noncentrosymmetric borate RbSr{sub 4}(BO{sub 3}){sub 3} was grown from flux. Black-Right-Pointing-Pointer The RbSr{sub 4}(BO{sub 3}){sub 3} can be viewed as a derivative of the apatite-like structure. Black-Right-Pointing-Pointer The structure and its relationship to the optical properties of RbSr{sub 4}(BO{sub 3}){sub 3} are compared with other NLO crystals with apatite-like structures. Black-Right-Pointing-Pointer The basic structural units are the planar BO{sub 3} groups in the structure. Black-Right-Pointing-Pointer Second harmonic generation (SHG) test shows that RbSr{sub 4}(BO{sub 3}){sub 3} can be phase matchable with an effective SHG coefficient about two-thirds as large as that of KH{sub 2}PO{sub 4}.

Xia, M.J. [Beijing Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (China); Li, R.K., E-mail: rkli@mail.ipc.ac.cn [Beijing Center for Crystal Research and Development, Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190 (China)

2013-01-15T23:59:59.000Z

332

Hanford 100N Area Apatite Emplacement: Laboratory Results of Ca-Citrate-PO4 Solution Injection and Sr-90 Immobilization in 100N Sediments  

DOE Green Energy (OSTI)

This report summarizes laboratory scale studies investigating the remediation of Sr-90 by Ca-citrate-PO4 solution injection/infiltration to support field injection activities in the Hanford 100N area. This study is focused on experimentally testing whether this remediation technology can be effective under field scale conditions to mitigate Sr-90 migration 100N area sediments into the Columbia River. Sr-90 is found primarily adsorbed to sediments by ion exchange (99% adsorbed, < 1% in groundwater) in the upper portion of the unconfined aquifer and lower vadose zone. Although primarily adsorbed, Sr-90 is still considered a high mobility risk as it is mobilized by seasonal river stage increases and by plumes of higher ionic strength relative to groundwater. This remediation technology relies upon the Ca-citrate-PO4 solution forming apatite precipitate [Ca6(PO4)10(OH)2], which incorporates some Sr-90 during initial precipitation and additionally slowly incorporates Sr-90 by solid phase substitution for Ca. Sr substitution occurs because Sr-apatite is thermodynamically more stable than Ca-apatite. Once the Sr-90 is in the apatite structure, Sr-90 will decay to Y-90 (29.1 y half-life) then Zr-90 (64.1 h half-life) without the potential for migration into the Columbia River. For this technology to be effective, sufficient apatite needs to be emplaced in sediments to incorporate Sr and Sr-90 for 300 years (~10 half-lives of Sr-90), and the rate of incorporation needs to exceed the natural groundwater flux rate of Sr in the 100N area. A primary objective of this study is to supply an injection sequence to deliver sufficient apatite into subsurface sediments that minimizes initial mobility of Sr-90, which occurs because the injection solution has a higher ionic strength compared to groundwater. This can be accomplished by sequential injections of low, then high concentration injection of Ca-citrate-PO4 solutions. Assessment of low concentration Ca-citrate-PO4, citrate-PO4, and PO4 solutions show greater Sr and Sr-90 incorporation during initial precipitation and less initial mobilization with solutions with low Ca2+ concentration. While all solutions showed nearly the same Sr uptake into apatite (14 to 17% by 2 weeks, 21% to 30% by 5 weeks), the incorporation efficiency (i.e., mM Sr incorporated per mM PO4 injected) was higher for solutions containing citrate. The Sr incorporation rate into apatite during initial precipitation (by 1 month) averaged 4.64 1.9 x 10-4 h-1 (half-life 1500 430 h, 8.85 x 10-7 mg Sr/day/mg apatite). The injection solution used in field injections #3 to #18 (10 mM PO4, 1 mM Ca, 2.5 mM citrate), which is deficient in Ca (a total of 16.7 mM needed to form apatite with 10 mM of PO4), resulted in the initial Sr and Ca peak (24 h) at 4.7x groundwater. By 30 days, the aqueous Sr concentration was 0.28x groundwater and Ca 0.43x groundwater, as both Sr and Ca are used to form initial apatite precipitates. Reactive transport simulation of the complex ion exchange, biodegradation, and precipitation processes showed that the initial Sr groundwater increase mobilized only 1.5% of the Sr mass in sediments. Citrate biodegradation, a necessary step in Ca-citrate-PO4 solutions forming apatite, had an average half-life of 50 h (at aquifer sediment/water ratio and temperature), and decreased an order of magnitude with sediment depth as the microbial biomass decreased five orders of magnitude. The rate of citrate biodegradation was relatively invariant with biomass and water saturation (50% to 100%, for vadose zone infiltration) possibly due to significant microbial injection using river water and subsurface microbial mobilization.

Szecsody, James E.; Burns, Carolyn A.; Moore, Robert C.; Fruchter, Jonathan S.; Vermeul, Vincent R.; Williams, Mark D.; Girvin, Donald C.; McKinley, James P.; Truex, Michael J.; Phillips, Jerry L.

2007-10-01T23:59:59.000Z

333

Undirectional Diagonal Order and Three-Dimensional Stacking of Charge Stripes in Orthorhombic Pr1.67Sr0.33NiO4 and Nd1.67Sr0.33NiO4  

SciTech Connect

The interplay between crystal symmetry and charge stripe order in Pr{sub 1.67}Sr{sub 0.33}NiO{sub 4} and Nd{sub 1.67}Sr{sub 0.33}NiO{sub 4} has been studied by means of single crystal x-ray diffraction. In contrast to tetragonal La{sub 1.67}Sr{sub 0.33}NiO{sub 4}, these crystals are orthorhombic. The corresponding distortion of the NiO{sub 2} planes is found to dictate the direction of the charge stripes, similar to the case of diagonal spin stripes in the insulating phase of La{sub 2-x}Sr{sub x}CuO{sub 4}. In particular, diagonal stripes seem to always run along the short a axis, which is the direction of the octahedral tilt axis. In contrast, no influence of the crystal symmetry on the charge stripe ordering temperature itself was observed, with T{sub CO}{approx}240 K for La, Pr, and Nd. The coupling between lattice and stripe degrees of freedom allows one to produce macroscopic samples with unidirectional stripe order. In samples with stoichiometric oxygen content and a hole concentration of exactly 1/3, charge stripes exhibit a staggered stacking order with a period of three NiO{sub 2} layers, previously only observed with electron microscopy in domains of mesoscopic dimensions. Remarkably, this stacking order starts to melt about 40 K below T{sub CO}. The melting process can be described by mixing the ground state, which has a three-layer stacking period, with an increasing volume fraction with a two-layer stacking period.

Hucker,M.; Zimmermann, M.; Klingelar, R.; Kiele, S.; Geck, J.; Bakehe, S.; Zhang, J.; Hill, J.; Revcolevschi, A.; et al.

2006-01-01T23:59:59.000Z

334

Electronic structure of delta-doped La:SrTiO{sub 3} layers by hard x-ray photoelectron spectroscopy  

Science Conference Proceedings (OSTI)

We have employed hard x-ray photoemission (HAXPES) to study a delta-doped SrTiO{sub 3} layer that consisted of a 3-nm thickness of La-doped SrTiO{sub 3} with 6% La embedded in a SrTiO{sub 3} film. Results are compared to a thick, uniformily doped La:SrTiO{sub 3} layer. We find no indication of a band offset for the delta-doped layer, but evidence of the presence of Ti{sup 3+} in both the thick sample and the delta-layer, and indications of a density of states increase near the Fermi energy in the delta-doped layer. These results further demonstrate that HAXPES is a powerful tool for the non-destructive investigation of deeply buried doped layers.

Kaiser, A. M. [Department of Physics, University of California, Davis, California 95616 (United States); Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Peter-Gruenberg-Institut PGI-6, Forschungszentrum Juelich, 52425 Juelich (Germany); Gray, A. X. [Department of Physics, University of California, Davis, California 95616 (United States); Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Stanford Institute for Materials and Energy Sciences, SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States); Conti, G.; Fadley, C. S. [Department of Physics, University of California, Davis, California 95616 (United States); Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720 (United States); Jalan, B. [Materials Department, University of California, Santa Barbara, California 93106-5050 (United States); Department of Chemical Engineering and Materials Science, University of Minnesota, Twin Cities, Minnesota 55455 (United States); Kajdos, A. P.; Stemmer, S. [Materials Department, University of California, Santa Barbara, California 93106-5050 (United States); Gloskovskii, A. [Institut fuer Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universitaet, 55099 Mainz (Germany); Ueda, S.; Yamashita, Y.; Kobayashi, K. [NIMS Beamline Station at SPring-8, National Institute for Materials Science, Hyogo 679-5148 (Japan); Drube, W. [Deutsches Elektronen-Synchrotron (DESY), Notkestrasse 85, 22607 Hamburg (Germany)

2012-06-25T23:59:59.000Z

335

Effective red compensation of Sr2SiO4: Dy3+ phosphor by codoping Mn2+ ions and its energy transfer  

Science Conference Proceedings (OSTI)

Mn2+ ions codoped Sr2SiO4 : Dy3+ phosphors were prepared by the solid-state reaction method using NH4Cl as the flux. Their phase compositions, photoluminescence properties, and the energy transfer ...

Le Zhang, Zhou Lu, Pengde Han, Lixi Wang, Qitu Zhang

2012-01-01T23:59:59.000Z

336

Texture improvements in the high-temperature superconducting Bi?Sr?Ca?Cu?Ox̳/Ag system via surface energy driven grain alignment  

E-Print Network (OSTI)

The relation between processing, microstructure, and material property was investigated in the high-temperature superconducting Bi?Sr?Ca?Cu?Ox̳/Ag system. Experiments were based on a theoretical surface energy model ...

Vodhanel, Mark E

2005-01-01T23:59:59.000Z

337

Fermi surface of SrFe2P2 determined by de Haas-van Alphen effect  

SciTech Connect

We report measurements of the Fermi surface (FS) of the ternary iron-phosphide SrFe{sub 2}P{sub 2} using the de Haas-van Alphen effect. The calculated FS of this compound is very similar to SrFe{sub 2}As{sub 2}, the parent compound of the high temperature superconductors. Our data show that the Fermi surface is composed of two electron and two hole sheets in agreement with bandstructure calculations. Several of the sheets show strong c-axis warping emphasizing the importance of three-dimensionality in the non-magnetic state of the ternary pnictides. We find that the electron and hole pockets have a different topology, implying that this material does not satisfy a ({pi},{pi}) nesting condition.

Analytis, J.G.

2010-05-26T23:59:59.000Z

338

Kinetics of fuel particle weathering and {sup 90}Sr mobility in the Chernobyl 30-km exclusion zone  

SciTech Connect

Weathering of fuel particles and the subsequent leaching of radionuclides causes {sup 90}Sr mobility in Chernobyl soils to increase with time after disposition. Studies of {sup 90}Sr speciation in soils collected in 1995 and 1996 from the Chernobyl 30-km exclusion zone have been used to calculate rates of fuel particles dissolution under natural environmental conditions. Results show that the velocity of fuel particle dissolution is primarily dependent on the physico-chemical characteristics of the particles and partially dependent on soil acidity. Compared to other areas, the fuel particle dissolution rate is significantly lower in the contaminated areas to the west of the Chernobyl reactor where deposited particles were presumably not oxidized prior to release. The data have been used to derive mathematical models that describe the rate of radionuclide leaching from fuel particles in the exclusion zone and changes in soil-to-plant transfer as a function of particle type and soil pH.

Kashparov, V.A.; Zvarich, S.I.; Protsak, V.P.; Levchuk, S.E. [Ukrainian Inst. of Agricultural Radiology, Kiev (Ukraine); Oughton, D.H. [NLH, Aas (Norway). Lab. for Analytical Chemistry

1999-03-01T23:59:59.000Z

339

Effect of a catalyst on the kinetics of reduction of celestite (SrSO{sub 4}) by active charcoal  

SciTech Connect

Reduction of celestite (SrSO{sub 4}) powder with particles of active charcoal has been studied extensively in the absence and presence of catalysts. The optimum temperature at the charging zone has been optimized to get a maximum water-soluble strontium sulfide value. The strontium value has been analyzed using a chemical method, which was verified by the instrumental method using an inductively coupled plasma-optical emission spectrophotometer (ICP-OES). The conversion-time data have been analyzed by using a modified volume-reaction (MVR) model, and the effect of the catalyst on kinetic parameters has been elucidated. It was found that potassium carbonate, potassium dichromate, sodium carbonate, and sodium dichromate catalysts were found to enhance the reaction rate quite satisfactorily in the reduction of the celestite (SrSO{sub 4}).

Sonawane, R.S.; Kale, B.B.; Apte, S.K.; Dongare, M.K.

2000-02-01T23:59:59.000Z

340

Alkaline earth lead and tin compounds Ae2Pb, Ae2Sn, Ae=Ca,Sr,Ba, as thermoelectric materials  

SciTech Connect

We present a detailed theoretical study of three alkaline earth compounds Ca2Pb, Sr2Pb and Ba2Pb, which have undergone little previous study, calculating electronic band structures and Boltzmann transport and bulk moduli using density functional theory. We also study the corresponding tin compounds Ca2 Sn, Sr2 Sn and Ba2 Sn. We find that these are all narrow band gap semiconductors with an electronic structure favorable for thermoelectric performance, with substantial thermopowers for the lead compounds at temperature ranges from 300 to 800 K. For the lead compounds, we further find very low calculated bulk moduli - roughly half of the values for the lead chalcogenides, suggestive of soft phonons and hence low lattice thermal conductivity. All these facts indicate that these materials merit experimental investigation as potential high performance thermoelectrics. We find good potential for thermoelectric performance in the environmentally friendly stannide materials, particularly at high temperature.

Parker, David S [ORNL; Singh, David J [ORNL

2013-01-01T23:59:59.000Z

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341

IDENTIFICATION OF AN {sup 84}Sr-DEPLETED CARRIER IN PRIMITIVE METEORITES AND IMPLICATIONS FOR THERMAL PROCESSING IN THE SOLAR PROTOPLANETARY DISK  

SciTech Connect

The existence of correlated nucleosynthetic heterogeneities in solar system reservoirs is now well demonstrated for numerous nuclides. However, it has proven difficult to discriminate between the two disparate processes that can explain such correlated variability: incomplete mixing of presolar material or secondary processing of a well-mixed disk. Using stepwise acid-leaching of the Ivuna CI-chondrite, we show that unlike other nuclides such as {sup 54}Cr and {sup 50}Ti, Sr-isotope variability is the result of a carrier depleted in {sup 84}Sr. The carrier is most likely presolar SiC, which is known to have both high Sr-concentrations relative to solar abundances and extremely depleted {sup 84}Sr compositions. Thus, variability in {sup 84}Sr in meteorites and their components can be attributed to varying contributions from presolar SiC. The observed {sup 84}Sr excesses in calcium-aluminum refractory inclusions (CAIs) suggest their formation from an SiC-free gaseous reservoir, whereas the {sup 84}Sr depletions present in differentiated meteorites require their formation from material with an increased concentration of SiC relative to CI chondrites. The presence of a positive correlation between {sup 84}Sr and {sup 54}Cr, despite being hosted in carriers of negative and positive anomalies, respectively, is not compatible with incomplete mixing of presolar material but instead suggests that the solar system's nucleosynthetic heterogeneity reflects selective thermal processing of dust. Based on vaporization experiments of SiC under nebular conditions, the lack of SiC material in the CAI-forming gas inferred from our data requires that the duration of thermal processing of dust resulting in the vaporization of CAI precursors was extremely short-lived, possibly lasting only hours to days.

Paton, Chad; Schiller, Martin; Bizzarro, Martin, E-mail: chadpaton@gmail.com, E-mail: schiller@snm.ku.dk, E-mail: bizzarro@snm.ku.dk [Centre for Star and Planet Formation, Natural History Museum of Denmark, University of Copenhagen, Copenhagen DK-1350 (Denmark)

2013-02-01T23:59:59.000Z

342

X-ray Investigation of Cleavage Plane of Single Layered Manganite La0.5Sr1.5MnO4  

Science Conference Proceedings (OSTI)

The top layer of a cleaved surface of the single layered manganite La{sub 0.5}Sr{sub 1.5}MnO{sub 4} is measured with crystal truncation rod scattering. Knowledge of the surface structure of strongly correlated electron systems is needed for nano-science and device application of such systems. The result shows that the cleaved surface is terminated by La/Sr layer and has little surface roughness.

Wakabayashi,Y.; Upton, M.; Grenier, S.; Hill, J.; Nelson, C.; Zheng, H.; Mitchell, J.

2007-01-01T23:59:59.000Z

343

Chemical expansion of La0.8Sr0.2Fe0.7Ga0.3O3-Olivier Valentina  

E-Print Network (OSTI)

1/26 Chemical expansion of La0.8Sr0.2Fe0.7Ga0.3O3- Olivier Valentina , Francis Millotb , ?ric: This paper deals with the chemical expansion measurements and modelling of La0.8Sr0.2Fe0.7Ga0.3O3 for lanthanum ferrite oxides, chemical expansion depends linearly on the Fe4+ concentration rather than

Paris-Sud XI, Université de

344

Effective thermal boundary resistance from thermal decoupling of magnons and phonons in SrRuO3 thin films  

SciTech Connect

We use the time-resolved magneto-optical Kerr effect (TRMOKE) to measure the local temperature and heat flow dynamics in ferromagnetic SrRuO3 thin films. After heating by a pump pulse, the film temperature decays exponentially, indicating that the heat flow out of the film is limited by the film/substrate interface. We show that this behavior is consistent with an effective boundary resistance resulting from disequilibrium between the spin and phonon temperatures in the film.

Langner, M.C.; Kantner, C.L.S.; Chu, Y.H.; Martin, L.M.; Yu, P.; Ramesh, R.; Orenstein, J.

2010-01-20T23:59:59.000Z

345

ASSESSMENT OF 90SR AND 137CS PENETRATION INTO REINFORCED CONCRETE (EXTENT OF 'DEEPENING') UNDER NATURAL ATMOSPHERIC CONDITIONS  

SciTech Connect

When assessing the feasibility of remediation following the detonation of a radiological dispersion device or improvised nuclear device in a large city, several issues should be considered including the levels and characteristics of the radioactive contamination, the availability of resources required for decontamination, and the planned future use of the city's structures and buildings. Currently, little is known about radionuclide penetration into construction materials in an urban environment. Knowledge in this area would be useful when considering costs of a thorough decontamination of buildings, artificial structures, and roads in an affected urban environment. Pripyat, a city substantially contaminated by the Chernobyl Nuclear Power Plant accident in April 1986, may provide some answers. The main objective of this study was to assess the depth of {sup 90}Sr and {sup 137}Cs penetration into reinforced concrete structures in a highly contaminated urban environment under natural weather conditions. Thirteen reinforced concrete core samples were obtained from external surfaces of a contaminated building in Pripyat. The concrete cores were drilled to obtain sample layers of 0-5, 5-10, 10-15, 15-20, 20-30, 30-40, and 40-50 mm. Both {sup 90}Sr and {sup 137}Cs were detected in the entire 0-50 mm profile of the reinforced cores sampled. In most of the cores, over 90% of the total {sup 137}Cs inventory and 70% of the total {sup 90}Sr inventory was found in the first 0-5 mm layer of the reinforced concrete. {sup 90}Sr had penetrated markedly deeper into the reinforced concrete structures than {sup 137}Cs.

Farfan, E.; Jannik, T.

2011-10-01T23:59:59.000Z

346

Where do the doped holes go in La{sub 2-x}Sr{sub x}CuO{sub 4}? A close look by XAFS  

SciTech Connect

Polarized x-ray absorption fine structure (XAFS) measurements at the La and Sr sites in La{sub 2-x}Sr{sub x}CuO{sub 4} (0.075(less-or-similar sign)x(less-or-similar sign)0.35) indicate that doped holes introduced with Sr are not uniformly distributed in the CuO{sub 2} planes but reside in impurity states with the majority of charge located on CuO{sub 6} octahedra coupled to the Sr dopants by an apical oxygen (denoted as Sr octahedra). A model based on doped hole-induced Jahn Teller (JT) distortions of these Sr octahedra indicates the impurity states are overlapping singlet and triplet ones resulting from pairings of intrinsic and extrinsic holes. The more mobile singlet pairs reside in the CuO{sub 2} planes, are bound by more than 0.1 eV and could Bose-condense into a superconducting state. The predominant appearance of (mostly) out-of plane triplet states at high x intimately related to the 2D-3D crossover in transport properties and could relate to the observed loss of high T{sub c} in the overdoped regime, as confinement of carriers to the CuO{sub 2} planes is reduced. (c) 1999 American Institute of Physics.

Haskel, Daniel [Physics Department Box 351560, University of Washington, Seattle, Washington 98195 (United States); Polinger, Victor [Physics Department Box 351560, University of Washington, Seattle, Washington 98195 (United States); Stern, Edward A. [Physics Department Box 351560, University of Washington, Seattle, Washington 98195 (United States)

1999-09-01T23:59:59.000Z

347

Modeling the potential role of a forest ecosystem in phytostabilization and phytoextraction of 90Sr at a contaminated watershed  

SciTech Connect

The behavior of {sup 90}Sr at forest sites in the White Oak Creek watershed, near Oak Ridge, Tennessee, was simulated with a simple, site-specific, multicompartment model that linked biomass and element cycling dynamics. The model was used to predict the role of forest cover in mitigating hydrologic losses of {sup 90}Sr from contaminated soils (i.e. phytostabilization) under conditions where contaminant transport is governed mainly by shallow subsurface flow. The model was also used to predict the removal of {sup 90}Sr from soil (i.e. phytoextraction) through the growth and harvest of short rotation woody crops over a period of 30 years. Simulations with the model indicated that (1) forest preservation on the watershed is a form of phytostabilization because forest cover helps to minimize hydrologic losses of {sup 90}Sr and (2) an attempt to significantly reduce amounts of {sup 90}Sr in soil through phytoextraction would be unsuccessful. Over a period of 30 years, and under various management strategies, the model predicted that <15% of the {sup 90}Sr initially present in soil at a contaminated site was lost through hydrologic transport and <53% was lost by radioactive decay. Phytostabilization may be important in the management of radioactive land when issues like waste minimization and pollution prevention affect the selection of technologies to be used in environmental restoration.

Garten Jr, Charles T [ORNL

1999-05-01T23:59:59.000Z

348

Inter-staple Dithiol Crosslinking in Au25(SR)18 Nanomolecules: A Combined Mass Spectrometric and Computational Study  

SciTech Connect

A systematic study of cross-linking chemistry of the Au{sub 25}(SR){sub 18} nanomolecule by dithiols of varying chain length, HS-(CH{sub 2}){sub n}-SH where n = 2, 3, 4, 5, and 6, is presented here. Monothiolated Au{sub 25} has six [RSAuSRAuSR] staple motifs on its surface, and MALDI mass spectrometry data of the ligand exchanged clusters show that propane (C3) and butane (C4) dithiols have ideal chain lengths for interstaple cross-linking and that up to six C3 or C4 dithiols can be facilely exchanged onto the cluster surface. Propanedithiol predominately exchanges with two monothiols at a time, making cross-linking bridges, while butanedithiol can exchange with either one or two monothiols at a time. The extent of cross-linking can be controlled by the Au{sub 25}(SR){sub 18} to dithiol ratio, the reaction time of ligand exchange, or the addition of a hydrophobic tail to the dithiol. MALDI MS suggests that during ethane (C2) dithiol exchange, two ethanedithiols become connected by a disulfide bond; this result is supported by density functional theory (DFT) prediction of the optimal chain length for the intrastaple coupling. Both optical absorption spectroscopy and DFT computations show that the electronic structure of the Au{sub 25} nanomolecule retains its main features after exchange of up to eight monothiol ligands.

Dass, Amala [University of Mississippi, The; Jiang, Deen [ORNL; Jupally, Vijay [University of Mississippi, The; Kota, Rajesh [University of Mississippi, The; Mattern, Daniell [University of Mississippi, The; Tschumper, Gregory [University of Mississippi, The; Van Dornshuld, Eric [University of Mississippi, The

2011-01-01T23:59:59.000Z

349

Interstaple Dithiol Cross-Linking in Au(25)(SR)(18) Nanomolecules: A Combined Mass Spectrometric and Computational Study  

Science Conference Proceedings (OSTI)

A systematic study of cross-linking chemistry of the Au{sub 25}(SR){sub 18} nanomolecule by dithiols of varying chain length, HS-(CH2)n-SH where n = 2, 3, 4, 5, and 6, is presented here. Monothiolated Au{sub 25} has six [RSAuSRAuSR] staple motifs on its surface, and MALDI mass spectrometry data of the ligand exchanged clusters show that propane (C3) and butane (C4) dithiols have ideal chain lengths for interstaple cross-linking and that up to six C3 or C4 dithiols can be facilely exchanged onto the cluster surface. Propanedithiol predominately exchanges with two monothiols at a time, making cross-linking bridges, while butanedithiol can exchange with either one or two monothiols at a time. The extent of cross-linking can be controlled by the Au{sub 25}(SR){sub 18} to dithiol ratio, the reaction time of ligand exchange, or the addition of a hydrophobic tail to the dithiol. MALDI MS suggests that during ethane (C2) dithiol exchange, two ethanedithiols become connected by a disulfide bond; this result is supported by density functional theory (DFT) prediction of the optimal chain length for the intrastaple coupling. Both optical absorption spectroscopy and DFT computations show that the electronic structure of the Au{sub 25} nanomolecule retains its main features after exchange of up to eight monothiol ligands.

Jiang, Deen [ORNL; Dass, Amala [University of Mississippi, The; Tschumper, Gregory [University of Mississippi, The; Mattern, Daniell [University of Mississippi, The; Van Dornshuld, Eric [University of Mississippi, The; Kota, Rajesh [University of Mississippi, The; Jupally, Vijay [University of Mississippi, The

2011-01-01T23:59:59.000Z

350

Electronic band structures and photovoltaic properties of MWO{sub 4} (M=Zn, Mg, Ca, Sr) compounds  

Science Conference Proceedings (OSTI)

Divalent metal tungstates, MWO{sub 4}, with wolframite (M=Zn and Mg) and scheelite (M=Ca and Sr) structures were prepared using a conventional solid state reaction method. Their electronic band structures were investigated by a combination of electronic band structure calculations and electrochemical measurements. From these investigations, it was found that the band structures (i.e. band positions and band gaps) of the divalent metal tungstates were significantly influenced by their crystal structural environments, such as the W-O bond length. Their photovoltaic properties were evaluated by applying to the working electrodes for dye-sensitized solar cells. The dye-sensitized solar cells employing the wolframite-structured metal tungstates (ZnWO{sub 4} and MgWO{sub 4}) exhibited better performance than those using the scheelite-structured metal tungstates (CaWO{sub 4} and SrWO{sub 4}), which was attributed to their enhanced electron transfer resulting from their appropriate band positions. - Graphical abstract: The electronic band structures of divalent metal tungstates are described from the combination of experimental results and theoretical calculations, and their electronic structure-dependent photovoltaic performances are also studied. Highlights: > MWO{sub 4} compounds with wolframite (M=Zn and Mg) and scheelite structure (M=Ca and Sr) were prepared. > Their electronic band structures were investigated by the calculations and the measurements. > Their photovoltaic properties were determined by the crystal and electronic structures.

Kim, Dong Wook, E-mail: dong0414@snu.ac.kr [Department of Materials Science and Engineering, Seoul National University, Seoul 151-744 (Korea, Republic of); Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul 151-744 (Korea, Republic of); Cho, In-Sun [Department of Mechanical Engineering, Stanford University, Stanford, California 94305 (United States); Shin, Seong Sik [Department of Materials Science and Engineering, Seoul National University, Seoul 151-744 (Korea, Republic of); Lee, Sangwook [Department of Materials Science and Engineering, Seoul National University, Seoul 151-744 (Korea, Republic of); Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul 151-744 (Korea, Republic of); Noh, Tae Hoon; Kim, Dong Hoe [Department of Materials Science and Engineering, Seoul National University, Seoul 151-744 (Korea, Republic of); Jung, Hyun Suk [School of Advanced Materials Engineering, Kookmin University, Seoul 136-702 (Korea, Republic of); Hong, Kug Sun, E-mail: kshongss@plaza.snu.ac.kr [Department of Materials Science and Engineering, Seoul National University, Seoul 151-744 (Korea, Republic of); Research Institute of Advanced Materials (RIAM), Seoul National University, Seoul 151-744 (Korea, Republic of)

2011-08-15T23:59:59.000Z

351

Dependence of Electronic Structure of SrRuO3 and the Degree of Correlation on Cation Off-Stoichiometry  

Science Conference Proceedings (OSTI)

We have grown and studied high quality SrRuO{sub 3} films grown by MBE as well as PLD. By changing the oxygen activity during deposition we were able to make SrRuO{sub 3} samples that were stoichiometric (low oxygen activity) or with ruthenium vacancies (high oxygen activity). Samples with strontium vacancies were found impossible to produce since the ruthenium would precipitate out as RuO{sub 2}. The volume of the unit cell of SrRuO{sub 3} becomes larger as more ruthenium vacancies are introduced. The residual resistivity ratio (RRR) and room temperature resistivity were found to systematically depend on the volume of the unit cell and therefore on the amount of ruthenium vacancies. The RRR varied from {approx}30 for stoichiometric samples to less than two for samples that were very ruthenium poor. The room temperature resistivity varied from 190 {micro}{Omega} cm for stoichoimetric samples to over 300 {micro}{Omega} cm for very ruthenium poor samples. UPS spectra show a shift of weight from the coherent peak to the incoherent peak around the Fermi level when samples have more ruthenium vacancies. Core level XPS spectra of the ruthenium 3d lines show a strong screened part in the case of stoichiometric samples. This screened part disappears when ruthenium vacancies are introduced. Both the UPS and the XPS results are consistent with the view that correlation increases as the amount of ruthenium vacancies increase.

Siemons, W.

2011-08-19T23:59:59.000Z

352

Hanford Sr/TRU Decontamination Program: Research from Beaker to Pilot Scale  

SciTech Connect

Plutonium and americium are present in the Hanford High Level Liquid Waste complexant concentrate (CC) waste due to the presence of complexing agents including di-(2-ethylhexyl) phosphoric acid (D2EHPA), tributylphosphate (TBP), hydroxyethylene diamine triacetic acid (HEDTA), ethylene diamine tetraacetic acid (EDTA), citric acid, glycolic acid, and sodium gluconate. The transuranic (TRU) concentrations approach 600 nCi/g and require processing prior to encapsulation into low activity glass. The Savannah River Technology Center (SRTC) has been actively participating in the development of a strontium/TRU decontamination process for the CC waste stored at Hanford in Tanks AN-107 and AN-102. The current baseline flowsheet involves the addition of strontium nitrate to effectively remove radio-strontium through an isotopic dilution, followed by a sodium permanganate strike to co-precipitate the actinides in the in-situ produced manganese solid phases. Demonstration efforts to validate the Sr/TRU flowsheet have included beaker scale reagent optimization and reaction kinetics testing and engineering scale-up experiments at the multi-liter and 1/100th plant scale (200-gallon) using both simulated and actual waste samples. Several key process engineering and process chemistry needs were identified during a recent Hanford Waste Treatment Plant project risk review.

Wilmarth, W.R.

2003-02-18T23:59:59.000Z

353

musrfit: A free platform-independent framework for muSR data analysis  

E-Print Network (OSTI)

A free data-analysis framework for muSR has been developed. musrfit is fully written in C++, is running under GNU/Linux, Mac OS X, as well as Microsoft Windows, and is distributed under the terms of the GNU GPL. It is based on the CERN ROOT framework and is utilizing the Minuit optimization routines for fitting. It consists of a set of programs allowing the user to analyze and visualize the data. The fitting process is controlled by an ascii-input file with an extended syntax. A dedicated text editor is helping the user to create and handle these files in an efficient way, execute the fitting, show the data, get online help, and so on. A versatile tool for the generation of new input files and the extraction of fit parameters is provided as well. musrfit facilitates a plugin mechanism allowing to invoke user-defined functions. Hence, the functionality of the framework can be extended with a minimal amount of overhead for the user. Currently, musrfit can read the following facility raw-data files: PSI-BIN, MDU...

Suter, A

2011-01-01T23:59:59.000Z

354

Low temperature rf sputtering deposition of (Ba, Sr) TiO{sub 3} thin film with crystallization enhancement by rf power supplied to the substrate  

SciTech Connect

The (Ba, Sr) TiO{sub 3} thin film deposited by radio frequency (rf) sputtering requires a high deposition temperature near 500 deg. C to realize a high relative dielectric constant over of 300. For example, the film deposited at 330 deg. C contains an amorphous phase and shows a low relative dielectric constant of less than 100. We found that rf power supplied not only to the (Ba, Sr) TiO{sub 3} sputtering target, but also to the substrate during the initial step of film deposition, enhanced the crystallization of the (Ba, Sr) TiO{sub 3} film drastically and realized a high dielectric constant of the film even at low deposition temperatures near 300 deg. C. The 50-nm-thick film with only a 10 nm initial layer deposited with the substrate rf biasing is crystallized completely and shows a high relative dielectric constant of 380 at the deposition temperature of 330 deg. C. The (Ba, Sr) TiO{sub 3} film deposited at higher temperatures (upwards of 400 deg. C) shows <110> preferred orientation, while the film deposited at 330 deg. C with the 10 nm initial layer shows a <111> preferred orientation on a <001>-oriented ruthenium electrode. The unit cell of (Ba, Sr) TiO{sub 3} (111) plane is similar to that of ruthenium (001) plane. We conclude that the rf power supplied to the substrate causes ion bombardments on the (Ba, Sr) TiO{sub 3} film surface, which assists the quasiepitaxial growth of (Ba, Sr) TiO{sub 3} film on the ruthenium electrode at low temperatures of less than 400 deg. C.

Yoshimaru, Masaki; Takehiro, Shinobu; Abe, Kazuhide; Onoda, Hiroshi [System LSI Research Division, Silicon Solution Company, Oki Electric Industry Co., Ltd., 550-1, Higashi-asakawa, Hachioji, Tokyo 193-8550 (Japan); Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan); Laboratory for Nanoelectronics and Spintronics, Research Institute of Electrical Communication, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan); Strategic Planning Office, Silicon Manufacturing Company, Oki Electric Industry Co., Ltd., 550-1, Higashi-asakawa, Hachioji, Tokyo 193-8550 (Japan)

2005-05-01T23:59:59.000Z

355

Bridgman Growth of Large SrI2:Eu2+ Single Crystals: A High-performance Scintillator for Radiation Detection Applications  

SciTech Connect

Single-crystal strontium iodide (SrI2) doped with relatively high levels (e.g., 3 - 6 %) of Eu2+ exhibits characteristics that make this material superior, in a number of respects, to other scintillators that are currently used for radiation detection. Specifically, SrI2:Eu2+ has a light yield that is significantly higher than LaBr3:Ce3+ -a currently employed commercial high-performance scintillator. Additionally, SrI2:Eu2+ is characterized by an energy resolution as high as 2.6% at the 137Cs gamma-ray energy of 662 keV, and there is no radioactive component in SrI2:Eu2+ - unlike LaBr3:Ce3+ that contains 138La. The Ce3+-doped LaBr3 decay time is, however, faster (30 nsec) than the 1.2 sec decay time of SrI2:Eu2+. Due to the relatively low melting point of strontium iodide (~515 oC), crystal growth can be carried out in quartz crucibles by the vertical Bridgman technique. Materials-processing and crystal-growth techniques that are specific to the Bridgman growth of europium-doped strontium iodide scintillators are described here. These techniques include the use of a porous quartz frit to physically filter the molten salt from a quartz antechamber into the Bridgman growth crucible and the use of a bent or bulb grain selector design to suppress multiple grain growth. Single crystals of SrI2:Eu2+ scintillators with good optical quality and scintillation characteristics have been grown in sizes up to 5.0 cm in diameter by applying these techniques. Other aspects of the SrI2:Eu2+ crystal-growth methods and of the still unresolved crystal-growth issues are described here.

Boatner, Lynn A [ORNL; Ramey, Joanne Oxendine [ORNL; Kolopus, James A [ORNL; Hawrami, Rastgo [Radiation Monitoring Devices, Watertown, MA; Higgins, William [Radiation Monitoring Devices, Watertown, MA; Van Loef, Edgar [Radiation Monitoring Devices, Watertown, MA; Glodo, J. [Radiation Monitoring Devices, Watertown, MA; Shah, Kanai [Radiation Monitoring Devices, Watertown, MA; Bhattacharya, P. [Fisk University, Nashville, TN; Tupitsyn, E [Fisk University, Nashville, TN; Groza, Michael [Fisk University, Nashville, TN; Burger, Arnold [Fisk University, Nashville, TN

2013-01-01T23:59:59.000Z

356

Cluster Chemistry in Electron-Poor Ae-Pt-Cd Systems (Ae=Ca, Sr, Ba): (Sr,Ba)Pt2Cd4, Ca6Pt8Cd16, and Its Known Antitype Er6Pd16Sb8  

SciTech Connect

Three new ternary polar intermetallic compounds, cubic Ca6Pt8Cd16, and tetragonal (Sr, Ba)Pt2Cd4 have been discovered during explorations of the AePtCd systems. Cubic Ca6Pt8Cd16 (Fm-3m, Z = 4, a = 13.513(1) ) contains a 3D array of separate Cd8 tetrahedral stars (TS) that are both face capped along the axes and diagonally bridged by Pt atoms to generate the 3D anionic network Cd8[Pt(1)]6/2[Pt(2)]4/8. The complementary cationic surface of the cell consists of a face-centered cube of Pt(3)@Ca6 octahedra. This structure is an ordered ternary variant of Sc11Ir4 (Sc6Ir8Sc16), a stuffed version of the close relative Na6Au7Cd16, and a network inverse of the recent Er6Sb8Pd16 (compare Ca6Pt8Cd16). The three groups of elements each occur in only one structural version. The new AePt2Cd4, Ae = Sr, Ba, are tetragonal (P42/mnm,Z = 2, a ? 8.30 , c ? 4.47 ) and contain chains of edge-sharing Cd4 tetrahedra along c that are bridged by four-bonded Ba/Sr. LMTO-ASA and ICOHP calculation results and comparisons show that the major bonding (Hamilton) populations in Ca6Pt8Cd16 and Er6Sb8Pd16 come from polar PtCd and PdSb interactions, that Pt exhibits larger relativistic contributions than Pd, that characteristic size and orbital differences are most evident for Sb 5s, Pt8, and Pd16, and that some terms remain incomparable, CaCd versus ErPd.

Samal, Saroj L. [Ames Laboratory; Gulo, Fakhili [Ames Laboratory; Corbett, John D. [Ames Laboratory

2013-02-18T23:59:59.000Z

357

Structural Comparison of n-type and p-type LaAlO3/SrTiO3 Interfaces  

Science Conference Proceedings (OSTI)

Using a surface x-ray diffraction technique, we investigated the atomic structure of two types of interfaces between LaAlO{sub 3} and SrTiO{sub 3}, that is, p-type (SrO/AlO{sub 2}) and n-type (TiO{sub 2}/LaO) interfaces. Our results demonstrate that the SrTiO{sub 3} in the sample with the n-type interface has a large polarized region, while that with the p-type interface has a limited polarized region. In addition, the atomic intermixing was observed to extend deeper into STO substrate at the n-type interface than at the p-type. These differences result in different degrees of band bending, which likely contributes to the striking difference in electrical conductivity between the two types of interfaces.

Bell, Christopher

2011-08-19T23:59:59.000Z

358

Effect of stoichiometry on the dielectric properties and soft mode behavior of strained epitaxial SrTiO3 thin films on DyScO3 substrates  

Science Conference Proceedings (OSTI)

The effect of stoichiometry on the dielectric properties and soft mode behavior of strained epitaxial Sr1-xTiO3 films grown on DyScO3 substrates is reported. Direct comparisons between nominally stoichiometric and non-stoichiometric films have been performed through measurements of lattice parameters, temperature-dependent permittivities, second harmonic generation, and terahertz dielectric spectra. The nominally stoichiometric film shows dispersion-free low-frequency permittivity with a 23 sharp maximum and pronounced soft mode behavior. Our results suggest that strained perfectlystoichiometric SrTiO3 films should not show relaxor behavior and that relaxor behavior emergesfrom defect dipoles that arise from non-stoichiometry in the highly polarizable strained SrTiO3 matrix

Lee, Che-Hui [Pennsylvania State University, University Park, PA; Skoromets, Volodymyr [Institute of Physics, Czech Republic; Biegalski, Michael D [ORNL; Lei, Shiming [Pennsylvania State University, University Park, PA; Haislmaier, Ryan [Pennsylvania State University, University Park, PA; Uecker, Reinhard [Leibniz Institute for Crystal Growth (IKZ); Bernhagen, Margitta [Leibniz Institute for Crystal Growth (IKZ); Xi, Xiaoxing [Temple University; Gopalan, Venkatraman [Pennsylvania State University, University Park, PA; Marti, Xavier [Institute of Physics, Czech Republic; Kamba, Stanislav [Institute of Physics, Czech Republic; Kuzel, Petr [Institute of Physics, Czech Republic; Schlom, Darrell [Cornell University

2013-01-01T23:59:59.000Z

359

Enhanced microwave dielectric properties of Ba{sub 0.4}Sr{sub 0.6}TiO{sub 3} ceramics doping by metal Fe powders  

SciTech Connect

Ba{sub 0.4}Sr{sub 0.6}TiO{sub 3} ceramics by adding mental Fe powders have been fabricated via the solid-state reaction method. The microstructures and optical properties of samples are systematically studied in order to establish the effects of Fe powder additives on microwave dielectric properties of Ba{sub 0.4}Sr{sub 0.6}TiO{sub 3} ceramics by x-ray diffraction, x-ray photoelectron spectroscopy, and optical reflective spectrum. The results show the coexistence of Fe{sup 2+} and Fe{sup 3+} in Ba{sub 0.4}Sr{sub 0.6}TiO{sub 3} ceramics, the decrease of O vacancy concentrations, and their incorporation into the B-site (Ti) of the Ba{sub 0.4}Sr{sub 0.6}TiO{sub 3} host lattice give rise to excellent microwave dielectric properties. All samples have a higher Q value above 290 while maintaining relatively high tunability above 16.6%. In particular, the sample with the composition of x = 0.035 mol has the dielectric constant of 889, Q Multiplication-Sign f value of 826 (at 1.370 GHz), and tunability of 24%, which are very promising for high power tunable devices. In comparison, Fe{sub 2}O{sub 3} oxide doped Ba{sub 0.4}Sr{sub 0.6}TiO{sub 3} ceramics with the same molar ratios of Fe exhibit inferior microwave properties. It indicates that additives of the metal Fe powders can more effectively improve dielectric properties of Ba{sub x}Sr{sub 1-x}TiO{sub 3} system than Fe{sub 2}O{sub 3} oxide.

Zhang Qiwei [Functional Materials Research Laboratory, Tongji University, 1239 Siping Road, Shanghai 200092 (China); School of Rare Earth, Inner Mongolia University of Science and Technology, Baotou 014010 (China); Zhai Jiwei; Yao Xi [Functional Materials Research Laboratory, Tongji University, 1239 Siping Road, Shanghai 200092 (China); Ben Qianqian [Institute of Quality Inspection of Electronic and Electrical Appliances and Household Electrical Appliances Presentation, 627 Yong Jia Road, Shanghai 200031 (China); Yu Xian [Agilent Technologies Co., Ltd, 690 Bibo Road, Shanghai 201203 (China)

2012-11-15T23:59:59.000Z

360

Angular distribution of atoms emitted from a SrZrO{sub 3} target by laser ablation under different laser fluences and oxygen pressures  

SciTech Connect

Angular distributions of atoms emitted by laser ablation of perovskite-type oxide SrZrO{sub 3} have been investigated using electron probe microanalysis with wavelength-dispersive spectroscopy and charge-coupled device photography with an interference filter. Each constituent element has been analyzed as a two-modal distribution composed of a broad cos{sup m} {theta} distribution and a narrow cos{sup n} {theta} distribution. The exponent n characterizes the component of laser ablation while the exponent m characterizes that of thermal evaporation, where a larger n or m means a narrower angular distribution. In vacuum, O (n=6) showed a broader distribution than those of Sr (n=16) and Zr (n=17), and Sr{sup +} exhibited a spatial distribution similar to that of Sr. As the laser fluence was increased from 1.1 to 4.4 J/cm{sup 2}, the angular distribution of Sr became narrower. In the laser fluence range of 1.1-4.4 J/cm{sup 2}, broadening of the angular distribution of Sr was observed only at the fluence of 1.1 J/cm{sup 2} under the oxygen pressure of 10 Pa. Monte Carlo simulations were performed to estimate approximately the energy of emitted atoms, focusing on the broadening of the angular distribution under the oxygen pressure of 10 Pa. The energies of emitted atoms were estimated to be 1-20 eV for the laser fluence of 1.1 J/cm{sup 2}, and more than 100 eV for 2.2 and 4.4 J/cm{sup 2}.

Konomi, I.; Motohiro, T.; Azuma, H.; Asaoka, T.; Nakazato, T.; Sato, E.; Shimizu, T.; Fujioka, S.; Sarukura, N.; Nishimura, H. [Toyota Technological Institute, 2-12-1 Hisakata, Tempaku-ku, Nagoya 468-8511, Japan and Toyota Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192 (Japan); Toyota Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192 (Japan); Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka 565-0871 (Japan)

2010-05-15T23:59:59.000Z

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361

Obtaining Mixed Ionic/Electronic Conductivity in Perovskite Oxides in a Reducing Environment: A Computational Prediction for Doped SrTiO3  

Science Conference Proceedings (OSTI)

The electronic conductivity and thermodynamic stability of mixed p- and n-doped SrTiO3 perovskites have been investigated under anodic solid oxide fuel cell conditions using density functional theory (DFT). In particular, constrained ab initio thermodynamic calculations have been performed to evaluate the phase stability of various Ga- and La-doped SrTiO3 at synthesized and anodic SOFC conditions. The density of states (DOS) of these materials was analyzed to determine the number of charge carriers and the degree of electronic conductivity. We find that a mixed ionic/electronic conductor can be obtained when doping SrTiO3 perovskite oxide with both p-type and n-type dopants. Calculations show that 10% Ga- and 20% La-doped SrTiO3 exhibit mixed ionic/electronic conductivity at high temperature and low oxygen partial pressure whereas doping with higher concentrations of Ga, e.g., 20%, diminishes the electronic conductivity of the material. Furthermore, changing the n-dopant from La (A-site) to Nb (B-site) does not significantly affect the reducibility and number of charge carriers in p- and n-doped SrTiO3. However, a higher degree of oxygen vacancy clustering is observed for the La-doped material which reduces the oxygen ion diffusion rate and traps electrons. Nevertheless, our findings suggest that independent of doping site, mixed ionic/ electronic conductivity can be obtained in SrTiO3 perovskite oxides under reducing conditions and high temperatures when using a mixed p- and n-type doping strategy that uses a p-dopant concentration smaller than the n-dopant concentration.

Suthirakun, Suwit; Ammal, Salai Cheettu; Xiao, Guoliang; Chen, Fanglin; Huang, Kevin; zur Loye, Hans-Conrad; Heyden, Andreas

2012-11-30T23:59:59.000Z

362

Testing the Itinerancy of Spin Dynamics in Superconducting Bi2Sr2CaCu2O8C+?  

SciTech Connect

Much of what we know about the electronic states of high-temperature superconductors is due to photoemission and scanning tunnelling spectroscopy studies of the compound Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}}. The demonstration of well-defined quasiparticles in the superconducting state has encouraged many theorists to apply the conventional theory of metals, Fermi-liquid theory, to the cuprates. In particular, the spin excitations observed by neutron scattering at energies below twice the superconducting gap energy are commonly believed to correspond to an excitonic state involving itinerant electrons. Here, we present the first measurements of the magnetic spectral weight of optimally doped Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} in absolute units. The lack of temperature dependence of the local spin susceptibility across the superconducting transition temperature, T{sub c}, is incompatible with the itinerant calculations. Alternatively, the magnetic excitations could be due to local moments, as the magnetic spectrum is similar to that in La{sub 1.875}Ba{sub 0.125}CuO{sub 4}, where quasiparticles and local moments coexist.

Xu, G.; Gu, G.D.; Hcker, M.; Fauqu, B.; Perring, T.G.; Regnault, L.P.; Tranquada, J.M.

2009-09-01T23:59:59.000Z

363

Explanation for the temperature dependence of plasma frequencies in SrTiO{sub 3} using mixed-polaron theory  

SciTech Connect

A theory of mixed polarons is used to interpret the published experimental results of Gervais {ital et} {ital al}. on temperature-dependent plasma frequencies in Nb-doped SrTiO{sub 3}. For given polaron masses before mixing, the appropriate average mixed-polaron mass at any temperature {ital T} depends on two quantities, {delta} and {ital b}, which are measures of the separation between the bottoms of large and nearly small polaron bands before mixing and of a mixing matrix element; {delta} and {ital b} are assumed to have arbitrary linear dependences on {ital T}, probably related to a {ital T} dependence of the bare mass, and a term quadratic in {ital T} is included in {delta}, determined from the {ital T} dependence of large-polaron binding energies. Including a constraint on the ratio {delta}/{vert_bar}{ital b}{vert_bar} at low {ital T} from known masses from specific-heat data, satisfactory agreement is obtained with masses determined from plasma frequencies. This gives further support for the theory of mixed polarons in SrTiO{sub 3} in addition to that already published. {copyright} {ital 1996 The American Physical Society.}

Eagles, D.M.; Georgiev, M. [Institute of Solid State Physics, Bulgarian Academy of Sciences, 72, Tzarigradsko Chaussee Boulevard, 1784 Sofia (Bulgaria)] [Institute of Solid State Physics, Bulgarian Academy of Sciences, 72, Tzarigradsko Chaussee Boulevard, 1784 Sofia (Bulgaria); Petrova, P.C. [Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 72, Tzarigradsko Chaussee Boulevard, 1784 Sofia (Bulgaria)] [Institute of Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 72, Tzarigradsko Chaussee Boulevard, 1784 Sofia (Bulgaria)

1996-07-01T23:59:59.000Z

364

Aging Studies of Sr-doped LaCrO3/YSZ/Pt Cells for an Electrochemical NOx Sensor  

DOE Green Energy (OSTI)

The stability and NO{sub x} sensing performance of electrochemical cells of the structure Sr-doped LaCrO{sub 3-{delta}} (LSC)/yttria-stabilized zirconia (YSZ)/Pt are being investigated for use in NO{sub x} aftertreatment systems in diesel vehicles. Among the requirements for NO{sub x} sensor materials in these systems are stability and long lifetime (up to ten years) in the exhaust environment. In this study, cell aging effects were explored following extended exposure to a test environment of 10% O{sub 2} at operating temperatures of 600-700 C. The data show that aging results in changes in particle morphology, chemical composition and interfacial structure, Impedance spectroscopy indicated an initial increase in the cell resistance during the early stages of aging, which is correlated to densification of the Pt electrode. Also, x-ray photoelectron spectroscopy indicated formation of SrZrO{sub 2} solid state reaction product in the LSC, a process which is of finite duration. Subsequently, the overall cell resistance decreases with aging time due, in part, to roughening of YSZ-LSC interface, which improves interface adherence and enhances charge transfer kinetics at the O{sub 2}/YSZ/LSC triple phase boundary. This study constitutes a first step in the development of a basic understanding of aging phenomena in solid state electrochemical systems with application not only to sensors, but also to fuel cells, membranes, and electrolyzers.

Song, S; Martin, L P; Glass, R S; Murray, E P; Visser, J H; Soltis, R E; Novak, R F; Kubinski, D J

2005-10-05T23:59:59.000Z

365

Gas Spring Losses in Linear Clearance Seal Compressors P.B. Bailey, M.W. Dadd, J.S. Reed*  

E-Print Network (OSTI)

heat transfer in a nearly-isothermal Stirling engine." SAE, 1985. 5. Kornhauser A.A., Smith, J.L., "The

366

J?@. 6 G/EY C^GHBg3XBh;03X72>pJs3XN`  

E-Print Network (OSTI)

%`$N%W%m%H%?%$%W$r%F%­%9%H=hM}8@8l Tcl $H%0%i %U%#%C%/%i%$%V%i%j Tk $K$h$C$FO 2.2 %F%­%9%H=hM}8@8l Tcl : : : : : : : : : : : : : : : : : : : : : : : : : : : 2 2.3 %0%i%$%"%&%H : : : : : : : : : : : : : : : : : : : : : : : : : : 17 Bh 6 >O I>2A 19 i #12; Bh 7 >O 7kO@ 22 tcl

Tanaka, Jiro

367

Compression Losses In Cryocoolers J.S. Reed, G. Davey, M.W. Dadd and P.B. Bailey  

E-Print Network (OSTI)

and Reacting Flows l Aerodynamics l Internal-Combustion Engines l Stirling Engines l Computational Fluid internal-combustion engines l Cross-flow and co-flow combustion facilities l Flammability test apparatus l

368

Preparation and Properties of High-T\\sub{c} Bi-Pb-Sr-Ca-Cu-O Thick Film Superconductors on YSZ Substrates  

Science Conference Proceedings (OSTI)

An evaluation of four firing profiles was performed to determine the optimum processing conditions for producing high-Tc Bi-PB-SR-Ca-Cu-O thick films on yttria-stabilized zirconia substrates. Using these four profiles, the effects of sintering temperatures ...

Hooker M. W.

1996-12-01T23:59:59.000Z

369

Thermodynamic quantities and defect equilibrium in La{sub 2-x}Sr{sub x}NiO{sub 4+{delta}}  

Science Conference Proceedings (OSTI)

In order to elucidate the relation between thermodynamic quantities, the defect structure, and the defect equilibrium in La{sub 2-x}Sr{sub x}NiO{sub 4+{delta}}, statistical thermodynamic calculation is carried out and calculated results are compared to those obtained from experimental data. Partial molar enthalpy of oxygen and partial molar entropy of oxygen are obtained from delta-P(O{sub 2})-T relation by using Gibbs-Helmholtz equation. Statistical thermodynamic model is derived from defect equilibrium models proposed before by authors, localized electron model and delocalized electron model which could well explain the variation of oxygen content of La{sub 2-x}Sr{sub x}NiO{sub 4+{delta}}. Although assumed defect species and their equilibrium are different, the results of thermodynamic calculation by localized electron model and delocalized electron model show minor difference. Calculated results by the both models agree with the thermodynamic quantities obtained from oxygen nonstoichiometry of La{sub 2-x}Sr{sub x}NiO{sub 4+{delta}}. - Graphical abstract: In order to elucidate the relation between thermodynamic quantities, the defect structure, and the defect equilibrium in La{sub 2-x}Sr{sub x}NiO{sub 4+{delta}}, statistics thermodynamic calculation is carried out and calculated results are compared to those obtained from experimental data.

Nakamura, Takashi, E-mail: t-naka@mail.tagen.tohoku.ac.j [Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-Ku, Sendai 980-8577 (Japan); Yashiro, Keiji; Sato, Kazuhisa; Mizusaki, Junichiro [Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, 2-1-1, Katahira, Aoba-Ku, Sendai 980-8577 (Japan)

2009-05-15T23:59:59.000Z

370

Morphology and photoluminescence of Ba0.5Sr0.5MoO4 powders by a molten salt method  

Science Conference Proceedings (OSTI)

Ba0.5Sr0.5MoO4 powders with scheelite-type tetragonal structure were successfully synthesized by a molten salt method. The structure, morphology, and luminescent property of the as-prepared powders were characterized ...

Ling Wei; Yunfei Liu; Yinong Lu; Tao Wu

2012-01-01T23:59:59.000Z

371

Design of an Enhanced Handover Algorithm Based on a New Adaptive SR-ARQ for Next-Generation Mobile Communication Networks  

Science Conference Proceedings (OSTI)

Next-generation mobile communication networks are supposed to provide various high capacity multimedia services to mobile users using various kinds of access networks. Among them, the WiNGS system developed by ETRI as one of 4G mobile system provides ... Keywords: Mobile communication networks, handover performance, SR-ARQ, reordering, WiNGS system

Man Kyu Park; Yun Chul Choi; Jae Yone Lee; Byung Chul Kim; Dae Young Kim; Jae Ho Kim

2008-12-01T23:59:59.000Z

372

(Ca/Sr)Au{sub x}Cd{sub 1-x}: Stacking variants of the CrB-FeB series  

SciTech Connect

The structural chemistry of binary 1:1 alkaline earth metallides A{sup II}M (M=p-block or late transition element) is dominated by planar M zig-zag chains, which are stacked in different orientations (CrB (c) to FeB (h) type) and with variable stacking distances (types I and II). As a case study of the electronic influences, the substitution of Au against Cd in the respective Ca and Sr aurides was examined by means of experimental, crystallographic and computational methods. Starting from CaAu, up to 11% of Au can be substituted by Cd without a change in the CrB structure type (orthorhombic, space group Cmcm, a=398.2(1), b=1122.6(6), c=460.9(2)pm, Z=4, R1=0.0303). Starting from SrAu (stacking sequence (hc){sub 2}(h{sub 2}c){sub 2}), depending on the proportion of the Cd substitution a successive change to structures with increased hexagonality is observed: In SrAu{sub 0.93}Cd{sub 0.07} (monoclinic, space group P2{sub 1}/m, a=621.3(4), b=472.4(2), c=1216.1(9)pm, beta=96.97(5){sup 0}, Z=6, R1=0.0467) the stacking sequence is h{sub 2c}, i.e. the hexagonality is 66.67%. A slightly more increased Cd content in SrAu{sub 0.78}Cd{sub 0.22} (orthorhombic, space group Pnma, a=3243.3(8), b=474.17(8), c=626.20(9)pm, Z=16, R1=0.0682) drives the hexagonality to 75%, with a (h{sub 3}c){sub 2} stacking sequence known from several rare earth nickel compounds. Further Cd substitution is not possible. However, in the Cd-rich section of the two series, where the CsCl/beta-brass structure type occurs for both alkaline earth elements, a small Au substitution, as determined from powder data by Rietveld refinements, is possible. The substitution limit and the stability ranges of the CsCl and the CrB type can be rationalized from the calculated band structures. Geometrical and electronic criteria are used to compare and discuss the stability ranges in a structural map. - SrAu{sub 0.93}Cd{sub 0.97}, one of the stacking sequences of the CrB/FeB structure type series found in the quasibinary section SrAu-SrCd.

Harms, Wiebke; Duerr, Ines; Daub, Michael [Institut fuer Anorganische und Analytische Chemie, University of Freiburg, Albertstr. 21, D-79104 Freiburg (Germany); Roehr, Caroline, E-mail: caroline@ruby.chemie.uni-freiburg.d [Institut fuer Anorganische und Analytische Chemie, University of Freiburg, Albertstr. 21, D-79104 Freiburg (Germany)

2010-01-15T23:59:59.000Z

373

Epitaxial stabilization of -Fe2O3 (00l) thin films on SrTiO3 (111)  

SciTech Connect

Thin films of the metastable and elusive -Fe2O3 have been epitaxially stabilized on SrTiO3 (111) substrates. The -Fe2O3 films present a (001) orientation perpendicular to the substrate and three in-plane domains measuring a few nanometers and showing atomically sharp interfaces. We argue that this domain structure, rather than the epitaxial-strain, plays an essential role in stabilizing the -Fe2O3 by minimizing the energy of (100) surfaces. The -Fe2O3 films show a large in-plane coercivity 8 kOe which combined with the magnetoelectric character claimed for this oxide may lead to novel applications in spintronics.

Gich, Marti [Universitat de Barcelona; Gazquez, J. [Oak Ridge National Laboratory (ORNL); Roig, Anna [Universitat de Barcelona; Fontcuberta, Josep [Universitat de Barcelona; Idrobo Tapia, Juan C [ORNL; Pennycook, Stephen J [ORNL; Varela del Arco, Maria [ORNL; Skumryev, Vassil [Universitat Autonoma de Barcelona; Varela, Manuel [Universitat de Barcelona

2010-01-01T23:59:59.000Z

374

Alleged Wasteful Spending Regarding International Travel for the Department of Energy's Deputy Secretary, INS-SR-13-01  

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

Wasteful Spending Regarding Wasteful Spending Regarding International Travel by the Department of Energy's Deputy Secretary INS-SR-13-01 January 2013 Department of Energy Washington, DC 20585 January 31, 2013 MEMORANDUM FOR THE SECRETARY FROM: Gregory H. Friedman Inspector General SUBJECT: INFORMATION: Special Inquiry on "Alleged Wasteful Spending Regarding International Travel by the Department of Energy's Deputy Secretary" BACKGROUND The Department of Energy's Deputy Secretary represents the U.S. Government, the Department and the Secretary in many high-level international and ministerial meetings. In this role, the Deputy Secretary receives executive protection while on international travel for security purposes, to reduce the risk of harm and aid mission accomplishment. During such travel, the

375

Determination of the spin-flip time in ferromagnetic SrRuO3 from time-resolved Kerr measurements  

SciTech Connect

We report time-resolved Kerr effect measurements of magnetization dynamics in ferromagnetic SrRuO{sub 3}. We observe that the demagnetization time slows substantially at temperatures within 15K of the Curie temperature, which is {approx} 150K. We analyze the data with a phenomenological model that relates the demagnetization time to the spin flip time. In agreement with our observations the model yields a demagnetization time that is inversely proportional to T-T{sub c}. We also make a direct comparison of the spin flip rate and the Gilbert damping coefficient showing that their ratio very close to k{sub B}T{sub c}, indicating a common origin for these phenomena.

Kantner, C.L.S.; Langner, M.C.; Siemons, W.; Blok, J.L.; Koster, G.; Rijnders, A.J.H.M.; Ramesh, R.; Orenstein, J.

2010-07-30T23:59:59.000Z

376

Detection of charge transfer processes in Cr-doped SrTiO{sub 3} single crystals  

SciTech Connect

An insulator-to-metal transition is observed in Cr-doped SrTiO{sub 3} single crystals upon extended exposure to a high electric field, namely, electroconditioning (EC). Electron paramagnetic resonance (EPR) and transport measurements under laser irradiation show anticorrelation between the Cr{sup 3+} EPR signal and the electrical current. This proves that the Cr{sup 3+} ions are responsible for the photocurrent that initiates the EC process. We observe the presence of Cr{sup 3+}/Cr{sup 4+} mixed valencies in the bulk in the conducting state. The EPR characterization of the spectra in the conducting state excludes the possibility of a Cr{sup 3+}-oxygen vacancy complex in the bulk as a result of the EC.

La Mattina, F. [Physik-Institut der Universitaet Zuerich, Winterthurerstr. 190, CH-8057 Zuerich (Switzerland); IBM Research, Zurich Research Laboratory, Saeumerstr. 4, CH-8803 Rueschlikon (Switzerland); Bednorz, J. G.; Alvarado, S. F. [IBM Research, Zurich Research Laboratory, Saeumerstr. 4, CH-8803 Rueschlikon (Switzerland); Shengelaya, A. [Physics Institute of Tbilisi State University, Chavchavadze 3, GE-0128, Tbilisi (Georgia); Keller, H. [Physik-Institut der Universitaet Zuerich, Winterthurerstr. 190, CH-8057 Zuerich (Switzerland)

2008-07-14T23:59:59.000Z

377

Suppression of the stellar enhancement factor and the reaction {sup 85}Rb(p,n){sup 85}Sr  

SciTech Connect

It is shown that a Coulomb suppression of the stellar enhancement factor occurs in many endothermic reactions at and far from stability. Contrary to common assumptions, reaction measurements for astrophysics with minimal impact of stellar enhancement should be preferably performed for those reactions instead of their reverses, despite of their negative Q value. As a demonstration, the cross section of the astrophysically relevant {sup 85}Rb(p,n){sup 85}Sr reaction has been measured by activation between 2.16{<=}E{sub c.m.}{<=}3.96 MeV and the astrophysical reaction rates at p process temperatures for (p,n) as well as (n,p) are directly inferred from the data. Additionally, our results confirm a previously derived modification of a global optical proton potential. The presented arguments are also relevant for other {alpha}- and proton-induced reactions in the p, rp, and {nu}p processes.

Rauscher, T. [Department of Physics, University of Basel, CH-4056 Basel (Switzerland); Kiss, G. G.; Gyuerky, Gy.; Simon, A.; Fueloep, Zs.; Somorjai, E. [Institute of Nuclear Research (ATOMKI), H-4001 Debrecen, P. O. Box 51 (Hungary)

2009-09-15T23:59:59.000Z

378

Low temperature tunneling magnetoresistance on (La,Sr)MnO{sub 3}/Co junctions with organic spacer layers  

Science Conference Proceedings (OSTI)

This paper concerns with giant magnetoresistance (MR) effects in organic spin valves, which are realized as layered (La,Sr)MnO{sub 3} (LSMO)-based junctions with tris-(8, hydroxyquinoline) aluminum (Alq{sub 3})-spacer and ferromagnetic top layers. The experimental work was focused on the understanding of the transport behavior in this type of magnetic switching elements. The device preparation was carried out in an ultrahigh vacuum chamber equipped with a mask changer by evaporation and sputtering on SrTiO{sub 3} substrates with LSMO stripes deposited by pulsed laser technique. The field and temperature dependences of the MR of the prepared elements are studied. Spin-valve effects at 4.2 K have been observed in a broad resistance interval from 50 {omega} to M{omega} range, however, without systematic dependence on spacer layer thickness and device area. In some samples, the MR changes sign as a function of the bias voltage. The observed similarity in the bias voltages dependences of the MR in comparison with conventional magnetic tunnel junctions with oxide barriers suggests a description of the found effects within the classical tunneling concept. This assumption is also confirmed by a similar switching behavior observed on ferromagnetically contacted carbon nanotube devices. The proposed model implies the realization of the transport via local Co chains embedded in the Alq{sub 3} layer and spin dependent tunneling over barriers at the interface Co grains/Alq{sub 3}/LSMO. The existence of conducting Co chains within the organics is supported by transmission electron microscopic/electron energy loss spectroscopic studies on cross-sectional samples from analogous layer stacks.

Vinzelberg, H.; Schumann, J.; Elefant, D.; Gangineni, R. B.; Thomas, J.; Buechner, B. [Leibniz Institute for Solid State and Materials Research Dresden, IFW Dresden, P.O. Box 270116, D-01171 Dresden (Germany)

2008-05-01T23:59:59.000Z

379

Breakdown by magnetic field in a La{sub 0.7}Sr{sub 0.3}MnO{sub 3}/MgO/Fe spin valve  

SciTech Connect

A La{sub 0.7}Sr{sub 0.3}MnO{sub 3}/MgO/Fe spin valve with inverse tunneling magnetoresistance (TMR) was fabricated on a (100) SrTiO{sub 3} substrate by radio frequency magnetron sputtering. Giant TMR ratios up to 540% were obtained. The breakdown of the spin valve was observed at high magnetic field, which was attributed to the joint action of the invalidation of MgO barrier and the shift of Fermi energy in La{sub 0.7}Sr{sub 0.3}MnO{sub 3} at high magnetic field.

Wu Xiaojie; Meng Jian [State Key Laboratory of Rare Earth Resources Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022 (China); Zhang Zhenzhong [State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, 3888 Dongnanhu Road, Changchun 130033 (China)

2012-03-19T23:59:59.000Z

380

Gaia's breath--global methane exhalations Keith A. Kvenvolden*, Bruce W. Rogers  

E-Print Network (OSTI)

the Dead Sea, and burning gas (methane) seeps in the Baku region of Azerbaijan were sites of fire complex in Azerbaijan that has been described in detail by Hovland et al. (1997). Azerbaijan is the world than 300 mud volcanoes located onshore of eastern Azerbaijan and offshore in the adjacent Caspian Sea

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381

BulletinVol. 66 -No. 7 March 9, 2012 RogerStoutenburghDSC_6945  

E-Print Network (OSTI)

of the Future. http://www.smartgrids.eu/documents/vision.pdf. [6] http://linky.erdfdistribution.fr/ [7] Birger

Ohta, Shigemi

382

BulletinVol. 65 -No. 29 August 19, 2011 RogerStoutenburghD0790811  

E-Print Network (OSTI)

and sustainability challenge confronting this planet. In 2008, he founded Sun Catalytix, a company committed

Ohta, Shigemi

383

BulletinVol. 65 -No. 18 May 20, 2011 RogerStoutenburghD2180511  

E-Print Network (OSTI)

was recently created at The University of Texas - Austin (UT), can be incorporated into "supercapacitor" energy. See Supercapacitors on p.2 Dong Su (left) and Eric Stach use a powerful electron microscope to analyze

384

R. ROGER RUAN Office: Bioproducts and Biosystems Engineering Department and Center for Biorefining  

E-Print Network (OSTI)

from Chinese tallow kernel oil with surfactant- coated lipase. Transactions of ASABE. Accepted. 2. Yu

Weiblen, George D

385

1 Kenneth C. Rogers, Ph.D. Bethesda, MD 20817-3348 July 2 ...  

Science Conference Proceedings (OSTI)

... Preliminary Recommendations NIST must proceed apace with the decontamination and decommissioning (if advisable ...

2010-05-03T23:59:59.000Z

386

BulletinVol. 66 -No. 12 April 13, 2012 RogerStoutenburghD0280412  

E-Print Network (OSTI)

BlueGene/P supercomputer installed at the Argonne Lead- ership Class Facility (ALCF) at Argonne research cen- ters around the world, including the ALCF, the University of Ed- inburgh, the KEK laboratoryGene/P supercom- puter in ALCF at Argonne Na- tional Laboratory and on the Ds Cluster at Fermi National Accel

Ohta, Shigemi

387

Ganging up on Jolly Roger in Asia : International cooperation and maritime piracy  

E-Print Network (OSTI)

As non-traditional security threats such as terrorism and organized transnational crime gain greater prominence around the globe, the need for international cooperation against these non-state actors has consequently ...

He, Ruijie

2008-01-01T23:59:59.000Z

388

Charles Roger Alcock, 1996 | U.S. DOE Office of Science (SC)  

Office of Science (SC) Website

Orlando Lawrence Contact Information The Ernest Orlando Lawrence Award U.S. Department of Energy SC-2Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301)...

389

Gage Density and Variability of Rainfall Estimates: A Complement to Silverman, Rogers and Dahl's Study  

Science Conference Proceedings (OSTI)

As a complement to the study by Silverman et al, (1981, this issue), the relative variability of rainfall estimates was studied for randomly located gages. This simplistic model allows for more random variability than Silverman et al.'s model ...

K. R. Gabriel

1981-12-01T23:59:59.000Z

390

Error reduction in slope stability assessment Jean-Alain Fleurisson and Roger Cojean  

E-Print Network (OSTI)

, differs from the result reported by Singer and Barton,13 which is known to be a misprint.44 Oil shale pyrolysis problem This example is a fixed final time formulation of the oil shale pyrolysis problem

391

A FRESH LOOK AT OFFSHORE WIND OPPORTUNITIES IN MASSACHUSETTS Anthony L. Rogers, Ph.D.  

E-Print Network (OSTI)

projects are supplying energy at costs of about 7.5 cents/ kWh. There are plans to install 40 MW of wind enable the harvesting of wind energy resources from areas far from shore and close to shore in regions on these assumptions, the Department of Energy estimates that wind power could provide 33,000 GWh of energy per year

Massachusetts at Amherst, University of

392

Twitter Use by the U.S. Congress Jennifer Golbeck+, Justin Grimes, Anthony Rogers  

E-Print Network (OSTI)

) johnculberson: Around July 1 - and they won't let us vote to open up domestic oil fields like ANWR and offshore and shale oil (2:40 PM Jun 12th, 2008) timryan: @johnculberson ANWR would, after 20 years, reduce gas my Dem colleague Tim Ryan says here he opposes ANWR drilling because it will only reduce gas prices

Golbeck, Jennifer

393

PROVISIONAL AGENDA Forum on Modeling the Atmospheric Boundary Layer  

E-Print Network (OSTI)

turbulence, surface layer turbulence, surface heat and moisture representations, heterogenous sub-grid scale-0915 Coordinate System ­ Roger Pielke, Sr., Chair (generalized vertical coordinate, horizontal spatial grid (on your own) 1400-1545 Sub-Grid Scale Fluxes ­ Jon Mercurio, Chair (planetary boundary layer

394

Hard vs. Soft: The Central Question of Pre-Fabricated Silicon Jonathan Rose  

E-Print Network (OSTI)

Hard vs. Soft: The Central Question of Pre-Fabricated Silicon Jonathan Rose The Edward S. Rogers Sr also help to make it happen. We will focus on the central question in FPGA architecture: what hard to support these hard structures. An interesting specific case that will be addressed is whether processors

Rose, Jonathan

395

Hardware acceleration of a Monte Carlo simulation for photodynamic therapy treatment planning  

E-Print Network (OSTI)

simulation on average 80 times faster and was 45 times more energy efficient than the MCML software executed The Edward S. Rogers Sr. Department of Electrical and Computer Engineering 10 King's College Road Toronto the forward solutions for a given source geometry, emis- sion profile, and optical interaction coefficients

Rose, Jonathan

396

Fabrication of ceramic membrane tubes for direct conversion of natural gas. [SrCo[sub 0. 8]Fe[sub 0. 2]O[sub x] perosvskite  

DOE Green Energy (OSTI)

Several perovskite-type oxides that contain transition metals on the B-site show mixed (electronic/ionic) conductivity. These mixed conducting oxides are promising materials for oxygen permeating membranes that can operate without the need of electrodes or external electrical circuitry. SrCo[sub 0.8]Fe[sub 0.2]O[sub x] perovskite is known to exhibit very high oxygen permeabilities and one could use this material for producing value added products by direct conversion of methane, the most abundant component of natural gas. This paper deals with the processing and fabrication by plastic extrusion of long lengths ([approx]30 cm) of hollow SrCo[sub 0.8]Fe[sub 0.2]O[sub x] ceramic tubes. These tubes are characterized by scanning electron microscopy, X-ray diffraction (XRD) and their thermodynamic stability is evaluated using room temperature XRD on samples equilibrated at high temperatures in different gas environment.

Balachandran, U.; Morissette, S.L.; Picciolo, J.J.; Dusek, J.T.; Poeppel, R.B. (Argonne National Lab., IL (United States)); Pei, S.; Kleefisch, M.S.; Mieville, R.L.; Kobylinski, T.P.; Udovich, C.A. (Amoco Research Center, Naperville, IL (United States))

1992-05-01T23:59:59.000Z

397

Oxygen transport in the Sr{sub 2}Fe{sub 3{minus}x}Co{sub x}O{sub y} system.  

Science Conference Proceedings (OSTI)

The mixed-conducting Sr-Fe-Co oxide has potential use as a gas separation membrane. Its superior oxygen transport reveals the feasibility of using oxide membranes in large-scale oxygen separation. Sr{sub 2}Fe{sub 3{minus}x}Co{sub x}O{sub y} (with x = 0.0, 0.3, 0.6, and 1.0) samples were made by solid state reaction. To understand the oxygen transport mechanism in this system, conductivity and thermogravimetry experiments were conducted at high temperature in various oxygen partial pressure environments. The oxygen diffusion coefficient was determined from the time relaxation transient behavior of the specimen after switching the surrounding atmosphere. Mobility of the charge carrier was derived from relative conductivity and weight changes. X-ray diffraction experiments were carried out on these samples to determine their crystal structures.

Ma, B.

1999-01-04T23:59:59.000Z

398

Common Origin of the Circular-dichroism Pattern in ARPES of SrTiO3 and CuxBi2Se3  

SciTech Connect

We investigate circular dichroism in the angular distribution (CDAD) of photoelectrons from SrTiO{sub 3}:Nb and Cu{sub x}Bi{sub 2}Se{sub 3} recorded by 7-eV laser ARPES. In addition to the well-known node that occurs in CDAD when the incidence plane matches the mirror plane of the crystal, we show that another type of node occurs when the mirror plane of the crystal is vertical to the incidence plane and the electronic state is two dimensional. The flower-shaped CDAD's occurring around the Fermi level of SrTiO{sub 3}:Nb and around the Dirac point of Cu{sub x}Bi{sub 2}Se{sub 3} are explained on equal footings. A surface-state-to-surface-resonance transition is indicated for the topological state of Cu{sub x}Bi{sub 2}Se{sub 3}.

Bell, Christopher

2011-08-19T23:59:59.000Z

399

Growth diagram of La0.7Sr0.3MnO3 thin films using pulsed laser deposition  

Science Conference Proceedings (OSTI)

An experimental study was conducted on controlling the growth mode of La0.7Sr0.3MnO3 thin films on SrTiO3 substrates using pulsed laser deposition by tuning growth temperature, pressure and laser fluence. Different thin film morphology, crystallinity and stoichiometry have been observed depending on growth parameters. To understand the microscopic origin, the adatom nucleation, step advance processes and their relationship to film growth were theoretically analyzed and a growth diagram was constructed. Three boundaries between highly and poorly crystallized growth, layer-by-layer and 3D growth, stoichiometric and non-stoichiometric growth were identified in the growth diagram. A good fit of our experimental observation with the growth diagram was found. This case study demonstrates that a more comprehensive understanding and the predicting of the growth mode in PLD is possible.

Guo, Hangwen [ORNL; Sun, Da-Li [ORNL; Wang, Wenbin [ORNL; Gai, Zheng [ORNL; Kravchenko, Ivan I [ORNL; Shao, Jian [Fudan University, China; Jiang, Lu [ORNL; Ward, Thomas Z [ORNL; Snijders, Paul C [ORNL; Yin, Lifeng [ORNL; Shen, Jian [Fudan University, China; Xu, Xiaoshan [ORNL

2013-01-01T23:59:59.000Z

400

Sol-gel preparation of ion-conducting ceramics for use in thin films. [LaSrCoO[sub 3]; SrCeY[sub x]O[sub 3  

DOE Green Energy (OSTI)

A metal alkoxide sol-gel solution suitable for depositing a thin film of La[sub 0.6]Sr[sub 0.4]CoO[sub 3] on a porous substrate has been developed; such films should be useful in fuel cell electrode and oxygen separation membrane manufacture. Crack-free films have been deposited on both dense and porous substrates by dip-coating and spin-coating techniques followed by a heat treatment in air. Fourier transform infrared spectroscopy was used to determine the chemical structure of metal alkoxide solution system. X-ray diffraction was used to determine crystalline phases formed at various temperatures, while scanning electron microscopy was used to determine physical characteristics of the films. Surface coatings have been successfully applied to porous substrates through the control of the substrate pore size, deposition parameters, and firing parameters. Conditions have been defined for which films can be deposited, and for which the physical and chemical characteristics of the film can be improved. A theoretical discussion of the chemical reactions taking place before and after hydrolysis in the mixed alkoxide solutions is presented, and the conditions necessary for successful synthesis are defined. Applicability of these films as ionic and electronic conductors is discussed.

Steinhauser, M.I.

1992-12-01T23:59:59.000Z

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


401

A survey of fractured SrTiO{sub 3} surfaces : from the micro-meter to nano-meter scale.  

Science Conference Proceedings (OSTI)

Cross-sectional scanning tunneling microscopy was utilized to study fractured perovskite oxide surfaces. It was found that for the non-cleavable perovskite oxide, SrTiO{sub 3}, atomically flat terraces could be routinely created with a controlled fracturing procedure. Optical, scanning electron and scanning tunneling microscopies, and a profilometer were used to obtain information from submillimeter to submicrometer scales of the fractured surface topography.

Chien, T. Y.; Guisinger, N. P.; Freeland, J. W. (Center for Nanoscale Materials); ( XSD)

2010-01-01T23:59:59.000Z

402

Texture analysis of smooth in situ laser ablated YBa sub 2 Cu sub 3 O sub 7 thin films on (100) SrTiO sub 3  

Science Conference Proceedings (OSTI)

The texture of YBa{sub 2}Cu{sub 3}O{sub 7} thin films on (100) SrTiO{sub 3}, grown by {ital in} {ital situ} laser ablation, was investigated by x-ray diffraction. The surface morphology is smooth with only 10{sup 5} cm{sup {minus}2} particulates of about 0.1 {mu}m in diameter. High-resolution x-ray diffraction shows that the {ital c}-axis of YBa{sub 2}Cu{sub 3}O{sub 7} is epitaxially aligned with the (001) direction of SrTiO{sub 3} irrespective of the misorientation. The {l brace}018{r brace} pole figure of YBa{sub 2}Cu{sub 3}O{sub 7} shows a fourfold symmetry which indicates that the films are ordered with respect to the substrate lattice. Moreover, the alignment in the {l brace}018{r brace} pole figure of the (220) reflections of SrTiO{sub 3} and the (018) reflections of YBa{sub 2}Cu{sub 3}O{sub 7} indicates that over the whole surface of the film the {ital a}- and {ital b}-axes of YBa{sub 2}Cu{sub 3}O{sub 7} are aligned along the (100) and (010) direction of SrTiO{sub 3}. The epitaxial nature of the films, the low density of particulates, and the lack of interdiffusion as concluded from secondary ion mass spectrometry measurements, allows for the preparation of heteroepitaxial stacks containing high-{ital T}{sub {ital c}} superconductors.

Cillessen, J.F.M.; de Leeuw, D.M.; Kinneging, A.J.; Zalm, P.C.; Bongers, P.F. (Philips Research Laboratories, P.O. Box 80 000, 5600 JA Eindhoven, The Netherlands (NL))

1990-12-15T23:59:59.000Z

403

METHOD FOR SIMULTANEOUS 90SR AND 137CS IN-VIVO MEASUREMENTS OF SMALL ANIMALS AND OTHER ENVIRONMENTAL MEDIA DEVELOPED FOR THE CONDITIONS OF THE CHERNOBYL EXCLUSION ZONE  

SciTech Connect

To perform in vivo simultaneous measurements of the {sup 90}Sr and {sup 137}Cs content in the bodies of animals living in the Chernobyl Exclusion Zone (ChEZ), an appropriate method and equipment were developed and installed in a mobile gamma beta spectrometry laboratory. This technique was designed for animals of relatively small sizes (up to 50 g). The {sup 90}Sr content is measured by a beta spectrometer with a 0.1 mm thick scintillation plastic detector. The spectrum processing takes into account the fact that the measured object is 'thick-layered' and contains a comparable quantity of {sup 137}Cs, which is a characteristic condition of the ChEZ. The {sup 137}Cs content is measured by a NaI scintillation detector that is part of the combined gamma beta spectrometry system. For environmental research performed in the ChEZ, the advantages of this method and equipment (rapid measurements, capability to measure live animals directly in their habitat, and the capability of simultaneous {sup 90}Sr and {sup 137}Cs measurements) far outweigh the existing limitations (considerations must be made for background radiation and the animal size, skeletal shape and body mass). The accuracy of these in vivo measurements is shown to be consistent with standard spectrometric and radiochemical methods. Apart from the in vivo measurements, the proposed methodology, after a very simple upgrade that is also described in the article, works even more accurately with samples of other media, such as soil and plants.

Farfan, E.; Jannik, T.

2011-10-01T23:59:59.000Z

404

FREQUENCY DISTRIBUTIONS OF 90SR AND 137CS CONCENTRATIONS IN AN ECOSYSTEM OF THE 'RED FOREST' AREA IN THE CHERNOBYL EXCLUSION ZONE  

Science Conference Proceedings (OSTI)

In the most highly contaminated region of the Chernobyl Exclusion Zone: the 'Red Forest' site, the accumulation of the major dose-affecting radionuclides ({sup 90}Sr and {sup 137}Cs) within the components of an ecological system encompassing 3,000 m{sup 2} were characterized. The sampled components included soils (top 0-10 cm depth), Molina caerulea (blue moor grass), Camponotus vagus (carpenter ants) and Pelobates fuscus (spade-footed toad). In a comparison among the components of this ecosystem, the {sup 90}Sr and {sup 137}Cs concentrations measured in 40 separate grids exhibited significant differences, while the frequency distribution of the values were close to a logarithmically normal leptokurtic distribution with a significant right-side skew. While it is important to identify localized areas of high contamination or 'hot spots,' including these values in the arithmetic mean may overestimate the exposure risk. In component sample sets that exhibited logarithmically normal distribution, the geometrical mean more accurately characterizes a site. Ideally, risk assessment is most confidently achieved when the arithmetic and geometrical means are most similar, meaning the distribution approaches normal. Through bioaccumulation, the highest concentrations of {sup 90}Sr and {sup 137}Cs were measured in the blue moor grass and spade-footed toad. These components also possessed distribution parameters that shifted toward a normal distribution.

Farfan, E.; Jannik, T.; Caldwell, E.

2011-10-01T23:59:59.000Z

405

Overcoming phase instability of RBaCo2O5+ (R = Y and Ho) by Sr substitution for application as cathodes in solid oxide fuel cells  

Science Conference Proceedings (OSTI)

Phase instabilities of the RBaCo2O5+ (R = Y and Ho) layered-perovskites and their decompositions into RCoO3 and BaCoO3-z at 800 oC in air were investigated. This will restrict their high temperature applications such as cathodes in solid oxide fuel cell (SOFC). However, appropriate amount of Sr substitution ( 60 % for R = Y and 70 % for R = Ho) for Ba successfully stabilized the R(Ba1-xSrx)Co2O5+ phase at elevated temperatures. This can be explained by decreasing oxygen vacancies at R-O layer, decreasing R-O bonding length, and consequent improvement of structural integrity. In addition, the Sr substitution (x = 0.6 - 1.0) for Ba provided added benefit with respect to the chemical stability against Ce0.8Gd0.2O1.9 (GDC) electrolyte, which is a critical requirement for the cathodes in SOFC. Among the various compositions investigated, the Y(Ba0.3Sr0.7)Co2O5+ + GDC composite cathode delivered the optimum electrochemical performances with a stable phase demonstrating the potential as a cathode in SOFC.

Kim, Jung-Hyun [ORNL; Young Nam, Kim [University of Texas at Austin; Bi, Zhonghe [ORNL; Manthiram, Arumugam [University of Texas at Austin; Paranthaman, Mariappan Parans [ORNL; Huq, Ashfia [ORNL

2013-01-01T23:59:59.000Z

406

LaL2SrL8Mn207BelowTc : Exchange StricthR ECEI VED  

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

088-00-105 088-00-105 58916-00-105 9714E3 co C--q 03/64 - 1 Sign Reversal of the MN-0 bond Compressibility r in LaL2SrL8Mn207BelowTc : Exchange StricthR ECEI VED in the Ferromagnetic State JUL Q 7 1997 O S T I D. N. Argyriout§ J. F. Mitchell, J. B. Goodenough * , 0. Chmaissemt S. Short, and J. D. Jorgensen t Science and Technology Center for Superconductivity and Materials Science Division Argonne National Laboratory Argonne, IL 60439 * Center for Materials Science and Engineering, ECT 9.102 University of Texas at Austin Austin, TX 78712-1063 the submitted manuscript has been created by the University of Chicago as Operator of Argonne National ( Argonne") under Contract No. W-31-109-ENG-38 with the U. S. Department of Energy. The U.S. Government retains for itself, and others acting on its behalf, a paid-up, non

407

Built-in and Induced Polarization Across LaAlO3/SrTiO3 Heterojunctions  

Science Conference Proceedings (OSTI)

Ionic crystals terminated at oppositely charged polar surfaces are inherently unstable and expected to undergo surface reconstructions to maintain electrostatic stability. Essentially, an electric field that arises between oppositely charged atomic planes gives rise to a built-in potential that diverges with thickness. Here we present evidence of such a built-in potential across polar LaAlO{sub 3} thin films grown on SrTiO{sub 3} substrates, a system well known for the electron gas that forms at the interface. By performing tunneling measurements between the electron gas and metallic electrodes on LaAlO{sub 3} we measure a built-in electric field across LaAlO{sub 3} of 80.1 meV/{angstrom}. Additionally, capacitance measurements reveal the presence of an induced dipole moment across the heterostructure. We forsee use of the ionic built-in potential as an additional tuning parameter in both existing and novel device architectures, especially as atomic control of oxide interfaces gains widespread momentum.

Guneeta, Singh-Bhalla

2011-08-15T23:59:59.000Z

408

Phase Transitions and Equations of State of Alkaline Earth Fluorides CaF2 SrF2 and BaF2 to Mbar Pressures  

SciTech Connect

Phase transitions and equations of state of the alkaline earth fluorides CaF{sub 2}, SrF{sub 2}, and BaF{sub 2} were examined by static compression to pressures as high as 146 GPa. Angle-dispersive x-ray diffraction experiments were performed on polycrystalline samples in the laser-heated diamond-anvil cell. We confirmed that at pressures less than 10 GPa all three materials undergo a phase transition from the cubic (Fm3{sup -}m) fluorite structure to the orthorhombic (Pnam) cotunnite-type structure. This work has characterized an additional phase transition in CaF{sub 2} and SrF{sub 2}: these materials were observed to transform to a hexagonal (P6{sub 3}/mmc) Ni{sub 2}In-type structure between 63-79 GPa and 28-29 GPa, respectively, upon laser heating. For SrF{sub 2}, the Ni{sub 2}In-type phase was confirmed by Rietveld refinement. Volumes were determined as a function of pressure for all high-pressure phases and fit to the third-order Birch-Murnaghan equation of state. For CaF{sub 2} and SrF{sub 2}, the fluorite-cotunnite transition results in a volume decrease of 8-10%, while the bulk modulus of the cotunnite-type phase is the same or less than that of the fluorite phase within uncertainty. For all three fluorides, the volume reduction associated with the further transition to the Ni{sub 2}In-type phase is {approx}5%. The percentage increase in the bulk modulus ({Delta}K) across the transition is greater when the cation is smaller. While for BaF{sub 2}, {Delta}K is 10-30%, {Delta}K values for SrF{sub 2} and CaF{sub 2} are 45-65% and 20-40%. Although shock data for CaF{sub 2} have been interpreted to show a transition to a highly incompressible phase above 100 GPa, this is not consistent with our static equation of state data.

S Dorfman; F Jiang; Z Mao; A Kubo; Y Meng; V Prakapenda; T Duffy

2011-12-31T23:59:59.000Z

409

Strain dependencies of energetic, structural, and polarization properties in tetragonal (PbTiO3)1/(SrTiO3)1 and (BaTiO3)1/(SrTiO3)1 superlattices: a comparative study with bulks  

E-Print Network (OSTI)

First-principles density functional calculations are performed to investigate the interplay between inplane strains and interface effects in 1by1 PbTiO3/SrTiO3 and BaTiO3/SrTiO3 superlattices of tetragonal symmetry. One particular emphasis of this study is to conduct side-by-side comparisons on various ferroelectric properties in short-period superlattices and in constituent bulk materials, which turns out to be rather useful in terms of obtaining valuable insight into the different physics when ferroelectric bulks form superlattices. The various properties that are studied in this work include the equilibrium structure, strain dependence of mixing energy, microscopic ferroelectric off-center displacements, macroscopic polarization, piezoelectric coeffcients, effective charges, and the recently formulated k-dependent polarization dispersion structure. The details of our findings are rather lengthy, and are summarized in Sec. IV.

Yao, Yanpeng

2010-01-01T23:59:59.000Z

410

Probing local structure in the yellow phosphor LaSr[subscript 2]AlO[subscript 5]:Ce[superscript 3+], by the maximum entropy method and pair distribution function analysis  

SciTech Connect

The compound LaSr{sub 2}AlO{sub 5} was recently introduced as a competitive Ce{sup 3+} host material for blue-pumped yellow phosphors for use in white light emitting diodes. A crucial feature of the crystal structure of LaSr{sub 2}AlO{sub 5} is that La, which is the host site for Ce{sup 3+}, is located in the 8h positions of the I4/mcm crystal structure, a site equally shared with Sr. While the average crystal structure of LaSr{sub 2}AlO{sub 5} as revealed by Rietveld analysis of laboratory and synchrotron X-ray diffraction data suggests nothing untoward, maximum entropy method analysis of the synchrotron X-ray data reveals the existence of conspicuous non-sphericity of the electron density. Pair distribution function analysis of the data suggests that despite their occupying the same crystallographic site, La and Sr possess distinct coordination environments, and the environment around La is more compact and regular than the environment suggested by the Rietveld refinement of the average structure. The absorption and emission from Ce{sup 3+} centers is controlled by the local coordination and symmetry, and the use of powerful new tools in unraveling details of these strengthens the rational search for new phosphors for solid state white lighting.

Im, Won Bin; Page, Katharine; DenBaars, Steven P.; Seshadri, Ram (UCSB); (LANL)

2011-08-04T23:59:59.000Z

411

Plasma plume effects on the conductivity of amorphous-LaAlO{sub 3}/SrTiO{sub 3} interfaces grown by pulsed laser deposition in O{sub 2} and Ar  

SciTech Connect

Amorphous-LaAlO{sub 3}/SrTiO{sub 3} interfaces exhibit metallic conductivity similar to those found for the extensively studied crystalline-LaAlO{sub 3}/SrTiO{sub 3} interfaces. Here, we investigate the conductivity of the amorphous-LaAlO{sub 3}/SrTiO{sub 3} interfaces grown in different pressures of O{sub 2} and Ar background gases. During the deposition, the LaAlO{sub 3} ablation plume is also studied, in situ, by fast photography and space-resolved optical emission spectroscopy. An interesting correlation between interfacial conductivity and kinetic energy of the Al atoms in the plume is observed: to assure conducting interfaces of amorphous-LaAlO{sub 3}/SrTiO{sub 3}, the kinetic energy of Al should be higher than 1 eV. Our findings add further insights on mechanisms leading to interfacial conductivity in SrTiO{sub 3}-based oxide heterostructures.

Sambri, A.; Amoruso, S.; Bruzzese, R.; Wang, X. [CNR-SPIN and Dipartimento di Scienze Fisiche, Complesso Universitario di Monte Sant'Angelo, Via Cintia, I-80125 Napoli (Italy); Cristensen, D. V.; Trier, F.; Chen, Y. Z.; Pryds, N. [Department of Energy Conversion and Storage, Risoe Campus, Technical University of Denmark, DK-4000 Roskilde (Denmark)

2012-06-04T23:59:59.000Z

412

Unidirectional diagonal order and three-dimensional stacking of charge stripes in orthorhombic Pr{sub 1.67}Sr{sub 0.33}NiO{sub 4} and Nd{sub 1.67}Sr{sub 0.33}NiO{sub 4}  

Science Conference Proceedings (OSTI)

The interplay between crystal symmetry and charge stripe order in Pr{sub 1.67}Sr{sub 0.33}NiO{sub 4} and Nd{sub 1.67}Sr{sub 0.33}NiO{sub 4} has been studied by means of single crystal x-ray diffraction. In contrast to tetragonal La{sub 1.67}Sr{sub 0.33}NiO{sub 4}, these crystals are orthorhombic. The corresponding distortion of the NiO{sub 2} planes is found to dictate the direction of the charge stripes, similar to the case of diagonal spin stripes in the insulating phase of La{sub 2-x}Sr{sub x}CuO{sub 4}. In particular, diagonal stripes seem to always run along the short a axis, which is the direction of the octahedral tilt axis. In contrast, no influence of the crystal symmetry on the charge stripe ordering temperature itself was observed, with T{sub CO}{approx}240 K for La, Pr, and Nd. The coupling between lattice and stripe degrees of freedom allows one to produce macroscopic samples with unidirectional stripe order. In samples with stoichiometric oxygen content and a hole concentration of exactly 1/3, charge stripes exhibit a staggered stacking order with a period of three NiO{sub 2} layers, previously only observed with electron microscopy in domains of mesoscopic dimensions. Remarkably, this stacking order starts to melt about 40 K below T{sub CO}. The melting process can be described by mixing the ground state, which has a three-layer stacking period, with an increasing volume fraction with a two-layer stacking period.

Huecker, M.; Hill, J. P.; Tranquada, J. M. [Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973 (United States); Zimmermann, M. v. [Hamburger Synchrotronstrahlungslabor HASYLAB at Deutsches Elektronen-Synchrotron, 22603 Hamburg (Germany); Klingeler, R.; Kiele, S.; Geck, J.; Buechner, B. [Leibniz-Institute for Solid State and Materials Research IFW Dresden, 01171 Dresden (Germany); Bakehe, S. N. [II. Physikalisches Institut, Universitaet zu Koeln, 50937 Koeln (Germany); Zhang, J. Z. [Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973 (United States); Cornell University, Ithaca, New York 14850 (United States); Revcolevschi, A. [Laboratoire de Physico-Chimie de l'Etat Solide, Universite Paris-Sud, 91405 Orsay Cedex (France); Buttrey, D. J. [Department of Chemical Engineering, University of Delaware, Newark, Delaware 19716 (United States)

2006-08-15T23:59:59.000Z

413

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; Chang, Hauyee; Takeuchi, Ichiro

1999-10-19T23:59:59.000Z

414

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

415

Argon-ion-pumped and diode-pumped all-solid-state femtosecond Cr:LiSrAlF{sub 6} regenerative amplifiers  

Science Conference Proceedings (OSTI)

A tunable femtosecond solid-state amplifier system that uses only 3 W of 488-nm argon-ion pump power has been demonstrated to deliver microjoule pulses at repetition rates up to 20 kHz, with a maximum pulse energy of 14 {mu}J obtained at 5 kHz. An all-solid-state, tunable, diode-pumped Cr:LiSrAlF{sub 6} regenerative amplifier has been demonstrated, for the first time to our knowledge, that amplifies femtosecond pulses to energies exceeding 1 {mu}J at up to a 16-kHz repetition rate.

Hyde, S.C.W.; Barry, N.P.; Mellish, R.; French, P.M.W.; Taylor, J.R. [Femtosecond Optics Group, Department of Physics, Imperial College of Science and Technology, Prince Consort Road, London SW7 2BZ (United Kingdom); van der Poel, C.J.; Valster, A. [Philips Optoelectronics Centre, Prof. Holstlann 4, 5656 AA Eindhoven (Netherlands)

1995-01-15T23:59:59.000Z

416

Direct Observation of Coexistence of Ferromagnetism and Superconductivity in RuSr2(Gd0.7Ce0.3)2Cu2O10  

E-Print Network (OSTI)

Recent reports of the detecting of ferromagnetism and superconductivity in ruthenium-cuprates have aroused great interest. Unfortunately, whether the two antagonistic phenomena coexist in the same space in the compounds remains unresolved. By employing the magneto-optical-imaging technique, ferromagnetism and superconductivity were indeed directly observed to coexist in the same space in RuSr2(Gd0.7Ce0.3)2Cu2O10 within the experimental resolution of ? 10 m. The observation sets a length scale limit for models proposed to account for the competition between ferromagnetism and superconductivity, especially d-wave superconductivity, in this interesting class of compounds.

unknown authors

2008-01-01T23:59:59.000Z

417

Influence of processing conditions on the thermoelectric properties of La{sub 1-x}Sr{sub x}CoO{sub 3} (x=0, 0.05)  

SciTech Connect

La{sub 1-x}Sr{sub x}CoO{sub 3} (x=0, 0.05) powders were prepared using the citrate-gel (Pechini) process. Pellets formed from these powders were sintered at various temperatures. All samples were characterized by means of X-Ray Diffraction and Scanning Electron Microscopy in order to investigate their structural and morphological properties. The electrical resistivity, thermal conductivity and thermopower were measured in a wide range of temperatures (2-350K) in order to understand the influence of the different processing conditions on the thermoelectric properties of the compounds.

Papageorgiou, Ch.; Athanasopoulos, G. I.; Kyratsi, Th.; Giapintzakis, J. [Department of Mechanical and Manufacturing Engineering, University of Cyprus, 75 Kallipoleos Avenue, PO Box 20537, 1678 Nicosia (Cyprus)

2012-06-26T23:59:59.000Z

418

Band alignment at Cu{sub 2}O/La{sub 0.7}Sr{sub 0.3}MnO{sub 3} interface: A combined experimental-theoretical determination  

SciTech Connect

Cu{sub 2}O/La{sub 0.7}Sr{sub 0.3}MnO{sub 3} is a promising heterostructure for the realization of all-oxide spintronics devices, with La{sub 0.7}Sr{sub 0.3}MnO{sub 3} (LSMO) and Cu{sub 2}O playing the roles of ferromagnet and semiconductor, respectively. Here we use x-ray photoelectron spectroscopy and first principles calculations to determine the valence band offset at the Cu{sub 2}O/LSMO interface. The interface band alignment is typical of a p-type semiconductor/metal contact, with an interface barrier of 0.3-0.5 eV depending on Cu{sub 2}O thickness. The calculated energetics indicates that the prevailing interface is between SrO-terminated LSMO and Cu planes of Cu{sub 2}O.

Cantoni, M.; Petti, D.; Bertacco, R. [Dipartimento di Fisica, L-NESS, Politecnico di Milano, Via Anzani 42, 22100 Como (Italy); Pallecchi, I.; Marre, D. [CNR-SPIN, C.so Perrone 24, 16152 Genova (Italy); Colizzi, G.; Filippetti, A.; Fiorentini, V. [CNR-IOM SLACS and Dipartimento di Fisica, Universita di Cagliari, S.P. Monserrato-Sestu Km. 0.700, Monserrato, 09042 Cagliari (Italy)

2010-07-19T23:59:59.000Z

419

sr0932.docx  

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

Nettamo, SRNS, (803) 292-2484 Nettamo, SRNS, (803) 292-2484 paivi.nettamo@srs.gov Carolina Fresh Farms Serves SRS Recovery Act Projects in Two Important Ways Recovery Act helps prevent probable layoffs due to recession Neeses, S.C. (Nov. 16) - What started as a side business in the early 1990s to help a sodding company through the cold months of winter is, almost 20 years later, helping it weather the lean months of the recession.

420

sr0906.docx  

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

May 27, 2009 May 27, 2009 james-r.giusti@srs.gov Fran Poda, SRNS, (803) 952-8671 fran.poda@srs.gov DOE's H-Canyon Finishes Processing Old Reactor Components From Nevada Test Site AIKEN, S.C., May 27, 2009 - In another example of the Department of Energy's (DOE) Savannah River Site (SRS) facilities working together to stabilize and dispose of surplus nuclear materials from around the DOE Complex, workers at H-Canyon recently

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


421

SR0916.docx  

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

DOE, (803) 952-7697 Thursday, August 6, 2009 DOE, (803) 952-7697 Thursday, August 6, 2009 james-r.giusti@srs.gov DT Townsend, SRNS, (803) 952-7566 dt-lawrence.townsend@srs.gov Savannah River Site Workers Enter Pioneering Reactor for First Time in More Than a Decade Recovery Act accelerates needed closure Aiken, S.C. (Aug. 6) - One of the many relics that marked the birth of the nuclear age in America has stood as an aging icon at the Savannah River Site (SRS) for nearly a half-

422

2011sr01.doc  

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

Tuesday, February 1, 2011 Tuesday, February 1, 2011 james-r.giusti@srs.gov Paivi Nettamo, SRNS, (803) 646-6075 paivi.nettamo@srs.gov Recovery Act Funds Test Reactor Dome Removal in Historic D&D Project AIKEN, S.C. - The landscape of the Savannah River Site (SRS) is a little flatter and a little less colorful with the removal today of the 75-foot-tall rusty-orange dome from the Cold War-era test reactor. This $25-million reactor

423

2010sr18.doc  

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

Tuesday, May 25, 2010 Tuesday, May 25, 2010 james-r.giusti@srs.gov Paivi Nettamo, SRNS, (803) 292-2484 paivi.nettamo@srs.gov SRS Demolishes Massive Cooling Tower, Continues Progress on Environmental Footprint Reduction (Aiken, S.C.) - The Savannah River Site's (SRS) massive K Cooling Tower was safely demolished today as part of the Site-wide Footprint Reduction Initiative funded by the American Recovery and Reinvestment Act (ARRA).

424

2010sr16.doc  

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

Recovery Act Funds Put Aiken Technical College Recovery Act Funds Put Aiken Technical College Rad Con Graduates to Work Early Aiken, S.C. - Using $200,000 in American Recovery and Reinvestment Act funds from the U.S. Department of Energy's Savannah River Site (SRS), the Aiken Technical College's (ATC) Radiation Protection Technology Program will be able to catapult 16 graduates into the local work force nearly six months ahead of schedule.

425

SR0915.docx  

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

Friday, July 17, 2009 james-r.giusti@srs.gov DOE Awards 3.4 million Contract To Ship Depleted Uranium Oxide Out of South Carolina Recovery Act in Action Aiken, SC (July 17) --...

426

sr0906.docx  

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

workers at H-Canyon recently successfully completed processing the last highly enriched uranium (HEU) components from a Nevada Test Site (NTS) reactor. The NTS reactor,...

427

SR0929.docx  

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26, 2009 james-r.giusti@srs.gov Paivi Nettamo, SRNS, (803) 952-6938 paivi.nettamo@srs.gov Mixed Waste Shipment Enables Consolidation of N-Area Storage Facilities Recovery Act...

428

sr0905.doc  

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for New Renewable Energy Fueled Plant at SRS New Steam Production Biomass Plant and Boilers to Yield Public Health, Environmental, and Cost Savings Benefits Aiken, SC - The U.S....

429

sr0934.doc  

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

Facility replaces a deteriorating, inefficient coal powerhouse and oil-fired boilers at a savings of approximately 35 million a year in energy and operation and...

430

2010sr23.doc  

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11, 2010 11, 2010 james-r.giusti@srs.gov Paivi Nettamo, SRNS, (803) 952-6938 paivi.nettamo@srs.gov Recovery Act Funding Improves Stormwater Drainage at the Largest Closed Seepage Basins on SRS Aiken, S.C. - Preventing the migration of contamination from rainwater runoff at a closed seepage basin at the Department of Energy's (DOE) Savannah River Site (SRS) can be as simple as a new concrete ditch and as complicated as

431

2010sr15.doc  

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With ARRA Funds, P-Reactor Disassembly Basin Project With ARRA Funds, P-Reactor Disassembly Basin Project Moves One Step Closer to Final Decommissioning Aiken, S.C. - Funding through the American Recovery and Reinvestment Act has moved the Department of Energy one step closer to closing the book on the Cold War-era P- Reactor facility at the Savannah River Site (SRS). With the installation, testing and startup of six evaporator units, SRS can begin removing about 4.6 million gallons of

432

SR-05-04  

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

4 4 Media Contact: Jim Giusti (803) 952-7697 NNSA And WSRC Reconition Of Progress In Key Tritium Facilities Flag Ribbon Art (Aiken, SC) -- Personnel from the National Nuclear Security Administration (NNSA) Savannah River Site Office (SRSO) joined with the Westinghouse Savannah River Company team on Thursday, July 1, to recognize the hundreds of craft personnel and other employees who have contributed to the exceptional progress on two key tritium projects. The Tritium Extraction Facility (TEF) and the Tritium Facility Modernization and Consolidation project (TCON) are major endeavors designed to equip the NNSA to meet the nation's need for tritium, a radioactive form of hydrogen gas that is a vital component of nuclear weapons. Tritium in the weapons stockpile must be replenished continually because it has a half-life of only 12.3 years.

433

2010SR05.doc  

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

Big Top Tent Keeps TRU Waste Trucks, Tanks Big Top Tent Keeps TRU Waste Trucks, Tanks Dry before Inspection and Shipping Big Top Aids Solid Waste Management in Shipping Protocol Aiken, S.C. - Important projects for the Recovery Act - and not a circus act - are being performed under the Big Top at Solid Waste Management facility at the Department of Energy's (DOE) Savannah River Site (SRS). The jumbo-size vinyl tent with a metal frame measuring 160 feet long, 24 feet wide, and

434

2010sr25.doc  

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

Tuesday, August 31, 2010 Tuesday, August 31, 2010 james-r.giusti@srs.gov John Lindsay, SRR, (803) 208-6253 john02lindsay@srs.gov Tank 37 Salt Removal Marks Second Liquid Waste Project Completed Recovery Act Project at SRS Aiken, SC -- Moving radioactive salt safely, closing liquid waste tanks and saving money are the drivers behind the successful completion of another American Recovery and Reinvestment Act project at the Department of Energy's

435

SR0913.docx  

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

NEWS MEDIA CONTACT: FOR IMMEDIATE RELEASE NEWS MEDIA CONTACT: FOR IMMEDIATE RELEASE Jim Giusti, DOE, (803) 952-7697 Wednesday, July 1, 2009 james-r.giusti@srs.gov Paivi Nettamo, SRNS, (803) 952-6938 paivi.nettamo@srs.gov SAVANNAH RIVER SITE SET DATES FOR RECOVERY ACT PROJECT TOWN HALL MEETINGS AND JOB FAIRS Aiken, S.C., July 7, 2009 * Augusta, G.A., July 20, 2009 Aiken, SC - The Department of Energy announced today that DOE's Savannah River

436

sr0801.doc  

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

Office, P.O. Box A, Aiken, S.C. 29802 Office, P.O. Box A, Aiken, S.C. 29802 NEWS MEDIA CONTACTS: For Immediate Release June 19, 2008 Julie Petersen (803) 952-7690 julie.petersen@srs.gov Jim Giusti (803) 952-7684 james-r.giusti@srs.gov DOE Marks Key Cleanup and Closure Milestones at its Savannah River Site AIKEN, S.C. - U.S. Department of Energy (DOE) Assistant Secretary for Environmental Management (EM) James A. Rispoli today marked the start of normal operations of interim salt waste processing facilities - the Actinide Removal Process (ARP) and the Modular Caustic Side Solvent Extraction Unit (MCU) - and the official closure of the General Separations Area Consolidated Unit (GSACU) at DOE's Savannah River Site (SRS). Removing the salt waste,

437

sr0905.doc  

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

Media Contact: Release Date: Media Contact: Release Date: Julie Petersen, (803) 952-7690 May 15, 2009 julie.petersen@srs.gov DOE Sets Energy Savings Contract in Motion for New Renewable Energy Fueled Plant at SRS New Steam Production Biomass Plant and Boilers to Yield Public Health, Environmental, and Cost Savings Benefits

438

SR201003.docx  

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

January 12, 2010 January 12, 2010 james-r.giusti@srs.gov John Lindsay, SRR, (803) 208-6253 john02lindsay@srs.gov SRS Tank 5 Moves to Closure Aiken, SC -- American Recovery and Reinvestment Act funding is helping accelerate tank closures at the Department of Energy's (DOE) Savannah River Site's F Tank Farm. The project is receiving $1.4 million in Recovery Act funding, which will allow for important steps that are necessary to moving the tank to closure.

439

SR201002.docx  

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

John Lindsay, SRR, (803) 208-6253 John Lindsay, SRR, (803) 208-6253 john02lindsay@srs.gov Recovery Act Funding Accelerates Tank Closure at the Savannah River Site Aiken, SC (Dec. 9) - "Innovate and accelerate safely" describes the upgrade work underway at H Area Waste Tank 13, an American Recovery and Reinvestment Act project being performed by Savannah River Remediation LLC ( SRR). Placed in service in 1956, Tank 13 is an underground waste storage tank with a capacity

440

sr0927.docx  

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

8, 2009 8, 2009 james-r.giusti@srs.gov Paivi Nettamo, SRNS, (803) 952-6938 paivi.nettamo@srs.gov Job Information And Other Training Opportunities Available Through Road To Recovery Tour Tour visiting communities across South Carolina and Northeast Georgia Aiken, SC (Oct. 7) - An innovative effort to share information on the Recovery Act at Savannah River Site (SRS) is underway. The U.S. Department of Energy (DOE) site's

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While these samples are representative of the content of NLEBeta,
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to obtain the most current and comprehensive results.


441

sr0931.docx  

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

Thursday, October 28, 2009 Thursday, October 28, 2009 james-r.giusti@srs.gov Paivi.Nettamo, SRNS, (803) 292-2484 paivi.nettamo@srs.gov Road To Recovery Tour Helps Local Yarn Plant Workers Start Job Search More than 100 attend tour stop after local plant announces closing Aiken, SC (Oct. 29) - More than 120 people in search of a job stopped by yesterday's Road To Recovery Tour stop in the small town of Sylvania, Ga. The initiative by the

442

2010sr20.doc  

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

Monday, June 21, 2009 Monday, June 21, 2009 james-r.giusti@srs.gov John Lindsay, SRR, (803) 208-6253 john02lindsay@srs.gov New Robot Supports SRS Waste Tank Closures Aiken, SC (June 21) - Movie-goers may have Iron Man 2, but thanks to the American Recovery and Reinvestment Act, the Department of Energy's (DOE) Savannah River Site (SRS) has its own super hero - "Tizzy," a tank-cleaning robot. Tizzy will remove high-

443

2011sr02.docx  

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

Thursday, February 10, 2011 Thursday, February 10, 2011 james-r.giusti@srs.gov Paivi Nettamo, SRNS, (803) 952-6938 paivi.nettamo@srs.gov Savannah River Site Makes Progress on Recovery Act-funded Cleanup AIKEN, S.C. - The Savannah River Site's (SRS) American Reinvestment and Recovery Act program recently disposition of more than 1,000 cubic meters of legacy transuranic waste (TRU). This represents 20 percent of the 5,000 cubic

444

2011_sr_03.doc  

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

Wednesday, February 23, 2011 Wednesday, February 23, 2011 james-r.giusti@srs.gov Paivi Nettamo, SRNS, (803) 646-6075 paivi.nettamo@srs.gov Recovery Act's HWCTR Project Empty of Equipment, Ready for Grouting AIKEN, S.C. - Thanks to investments from the American Recovery and Reinvestment Act, the next phase has begun on decommissioning the Heavy Water Components Test Reactor (HWCTR) at the Savannah River Site (SRS).

445

SR0921.docx  

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

From there, the 90 applicants underwent six weeks of screening and testing, followed by pre-employment aptitude examinations. -more- 2 SuperJTI 2-2-2-2 Candidates recruited for...

446

2010sr24.doc  

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The DOE Voluntary Protection Program mirrors a similar program managed by the Occupational Safety and Health Administration. The purpose of the program is to recognize...

447

SR0911.docx  

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for Occupational Medicine in Augusta, Ga., received the contract from Savannah River Nuclear Solutions, LLC (SRNS), the management and operating contractor at SRS. Both local...

448

2010SR01.docx  

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

shipments carry three massive transuranic waste transportation containers, known as TRUPACT IIs, approximately 8 feet in diameter and 10 feet high and certified by the U.S....

449

sr0923.docx  

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

(Sept.25) - Last year was a bad year for Larry and Kevin Peters of Peters Machine and Welding in Beech Island, S.C. They had to borrow money to stay afloat, and were hoping that...

450

SR0920.docx  

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

used at SRS as cleaning and degreasing solvents in many industrial areas. Scientists and engineers from Savannah River Nuclear Solutions and the Savannah River Ecology Lab have...

451

SR Key Facts  

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

Key Facts Savannah River Site Budget FY 2011 Budget Summary FY 2011 SRS EM Program Budget Summary FY 2012 Presidential Budget Request for SRS FY 2014 SRS EM Budget Presentation...

452

2010sr20.doc  

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

by DOE. The SRS Liquid Waste contract is managed by SRR, a team of companies led by URS Corp. with partners Bechtel National, CH2M Hill and Babcock & Wilcox. Critical...

453

2010sr22.doc  

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

Technology Expanded at Savannah River Site, Accelerates Cleanup High Heat Removes Tritium from Contaminated D-Area Soil and Concrete Aiken, S.C. - After a successful pilot...

454

SR Fill History  

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

prob.1.27hrAOP,FB IOC prob.1.41,CTL 11 1016 10:40 To 1016 15:23 4.71   Human Error (AOP) 0.03 Cycled shutter permit key 12 1016 15:25 To 1022 00:19...

455

SR Fill History  

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

8:05:18 CDT 2013) User periods in this interval 10012013 08:01 To 10082013 08:00 167.98 Hours, Delivered Beam: 159.17 Hours, 6 Fault(s), 26.53 MTBF, 94.75% of Sched. Time 10...

456

2010SR04.docx  

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

Feb. 18 Augusta GA City Club 724 Broad Street 11:30-1:30pm Thursday, Mar. 18 Aiken SC Newberry Hall 117 Newberry Street 11:30-1:30pm Thursday, Apr. 15 North Augusta, SC North...

457

2010sr21.doc  

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

Wednesday July 7, 2010 james-r.giusti@srs.gov DOE and NRC to Hold Public Meeting on SRS F Tank Farm Waste Determination Draft Basis Document Aiken, SC - The U.S. Department of...

458

Sr:s I  

Office of Legacy Management (LM)

1.: rg , ili k: ".,I k,, i,:. rji i:iii ".' . , F, iir il' ?:, 'i:' ir: *, Fr, i.r |ir :y. ri FoRMERLYUTIL|ZEDMEDAEcS|TES REMEDIAL ACTION PROGRAM POST,REMEDIAL.AGTION...

459

SR0925.docx  

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

accelerate Liquid Waste remediation work at the Savannah River Site (SRS) by replacing aging and unreliable infrastructure while preparing for future waste processing under the...

460

2010sr07.doc  

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

Director for the two projects. "Staff for the Department of Energy and Savannah River Nuclear Solutions worked long and hard to produce a solid performance baseline for the...

Note: This page contains sample records for the topic "js rogers sr" 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

2010sr32.doc  

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

War production reactor that served the Nation. The in-situ, or in-place deactivation and decommissioning of the SRS P and R Reactors is precedent-setting in the nuclear industry."...

462

2010SR06.docx  

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

Using stimulus funding for cleanup of SRS, the reactors are scheduled for in-situ decommissioning. Below-grade areas will be stabilized by filling them with specially designed...

463

SR0919.docx  

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exist for site- wide furniture moving; commodities including wood chips and laundry; site-wide portable equipment rental; site-wide cellular service; and site-wide...

464

2010sr13.doc  

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

April 13, 2010 james-r.giusti@srs.gov DOE Announces Intention to Offer State of Georgia Additional Enviromental Monitoring Funds AIKEN, SC - The Department of Energy (DOE) today...

465

SR0925.docx  

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

Friday, October 2, 2009 james-r.giusti@srs.gov Dean Campbell, SRR, (803)208-8270 dean.campbell@srs.gov Savannah River Remediation Starts 200 Million in Liquid Waste Work Under the...

466

2010sr13.doc  

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

program, DOE's Savannah River Operations Office will provide the Georgia Department of Natural Resources financial assistance to conduct independent environmental monitoring in...

467

sr0924.docx  

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

half-life of 24,000 years. It also contains hazardous materials, such as mercury and benzene. We simply were not permitted, or equipped, to handle the final disposition of this...

468

sr0934.doc  

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

renewable energy fueled facility at the Savannah River Site (SRS). The new Biomass Cogeneration Facility replaces a deteriorating, inefficient coal powerhouse and oil-fired...

469

SR-04-04  

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

Note to News Directors and Editors: AIKEN, S.C. (June 25, 2004)-The National Nuclear Security Administration (NNSA) Savannah River Site Office and Westinghouse Savannah River...

470

SR-02-04  

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

952-7697 Wackenhut Services - Savannah River Site Excels at "Carolina Challenge" Security Police Competition Flag Ribbon Art Aiken, SC - The Wackenhut Services -Savannah River...

471

SR-03-04  

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

Office Manager has determined the award fee amount of the Savannah River Site security contractor, Wackenhut Services Inc.-Savannah River Site. The Award Fee Determination...

472

SR-06-04  

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

of a programmatic agreement between the U. S. Department of Energy (DOE), National Nuclear Security Administration, the South Carolina State Historic Preservation Office,...

473

SR-01-04  

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

29, 2004 Media Contact: Bill Taylor (803) 952-7697 SRS to Host "Carolina Challenge" Security Police Competition Flag Ribbon Art Aiken, SC -- The U.S. Department of Energy (DOE)...

474

SR-02-02  

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

Report On TEF Construction Worker Accident Flag Ribbon Art Aiken, SC - The National Nuclear Security Administration's (NNSA) Savannah River Site Office (SRSO) today issued...

475

SR0918.docx  

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

up the cleanup at Savannah River Site." Under the Recovery Act, Savannah River Nuclear Solutions has been able to help many local residents get back to work. The 1.6...

476

SR-05-04  

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

Absorber Rods, which are being irradiated in a Tennessee Valley Authority nuclear power plant, will be transported to the TEF, where the tritium will be extracted....

477

sr0930.doc  

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

2009 julie.petersen@srs.gov Kelly Ling, (803) 952-9172 kelly.ling@srs.gov DOE to Honor Nuclear Weapons Patriots of SRS at National Day of Remembrance Program Aiken, SC (Oct. 26)...

478

sr0933.docx  

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

friendly approach to material reuse is a success. Just as doctors use lead to shield patients from over-exposure to x-rays, SRS utilizes this material to protect workers...

479

SR0910.docx  

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

NEWS MEDIA CONTACT: FOR IMMEDIATE RELEASE Jim Giusti, DOE, (803) 952-7697 Monday, June 22, 2009 james-r.giusti@srs.gov Angeline French, (SRNL), (803) 725-2854 angeline.french@srnl....

480

NlSr  

Science Conference Proceedings (OSTI)

... Therefore, besides fire control measures, we should notice ... up in short time into an active fire and it ... which is only based on fire resistance of building ...

2008-12-22T23:59:59.000Z

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


481

Extracting the Spectral Function of the Cuprates By a Full Two-Dimensional Analysis: Angle-Resolved Photoemission Spectra of Bi(2)Sr(2)CuO(6)  

SciTech Connect

Recently, angle-resolved photoemission spectroscopy (ARPES) has revealed a dispersion anomaly at high binding energy near 0.3--0.5eV in various families of the high-temperature superconductors. For further studies of this anomaly, we present a new two-dimensional fitting scheme and apply it to high-statistics ARPES data of the strongly overdoped Bi{sub 2}Sr{sub 2}CuO{sub 6} cuprate superconductor. The procedure allows us to extract the self-energy in an extended energy and momentum range. It is found that the spectral function of Bi{sub 2}Sr{sub 2}CuO{sub 6} can be parametrized using a small set of tight-binding parameters and a weakly momentum-dependent self-energy up to 0.7eV in binding energy and over the entire first Brillouin zone. Moreover, the analysis gives an estimate of the momentum dependence of the matrix element, a quantity, which is often neglected in ARPES analyses.

Meevasana, W.; Baumberger, F.; Tanaka, K.; Schmitt, F.; Dunkel, W.R.; Lu, D.H.; Mo, S.-K.; Eisaki, H.; Shen, Z.-X.

2009-05-26T23:59:59.000Z

482

Extracting the spectral function of the cuprates by a full two-dimensional analysis: Angle-resolved photoemission spectra of Bi2Sr2CuO6  

SciTech Connect

Recently, angle-resolved photoemission spectroscopy (ARPES) has revealed a dispersion anomaly at high binding energy near 0.3-0.5 eV in various families of the high-temperature superconductors. For further studies of this anomaly we present a new two-dimensional fitting-scheme and apply it to high-statistics ARPES data of the strongly-overdoped Bi{sub 2}Sr{sub 2}CuO{sub 6} cuprate superconductor. The procedure allows us to extract the self-energy in an extended energy and momentum range. It is found that the spectral function of Bi{sub 2}Sr{sub 2}CuO{sub 6} can be parameterized using a small set of tight-binding parameters and a weakly-momentum-dependent self-energy up to 0.7 eV in binding energy and over the entire first Brillouin zone. Moreover the analysis gives an estimate of the momentum dependence of the matrix element, a quantity, which is often neglected in ARPES analyses.

Meevasana, W.

2010-04-30T23:59:59.000Z

483

Critical thickness of high structural quality SrTiO3 films grown on orthorhombic (101) DyScO3  

Science Conference Proceedings (OSTI)

Strained epitaxial SrTiO{sub 3} films were grown on orthorhombic (101) DyScO{sub 3} substrates by reactive molecular-beam epitaxy. The epitaxy of this substrate/film combination is cube on cube with a pseudocubic out-of-plane (001) orientation. The strain state and structural perfection of films with thicknesses ranging from 50 to 1000 {angstrom} were examined using x-ray scattering. The critical thickness at which misfit dislocations was introduced was between 350 and 500 {angstrom}. These films have the narrowest rocking curves (full width at half maximum) ever reported for any heteroepitaxial oxide film (0.0018{sup o}). Only a modest amount of relaxation is seen in films exceeding the critical thicknesses even after postdeposition annealing at 700{sup o}C in 1 atm of oxygen. The dependence of strain relaxation on crystallographic direction is attributed to the anisotropy of the substrate. These SrTiO{sub 3} films show structural quality more typical of semiconductors such as GaAs and silicon than perovskite materials; their structural relaxation behavior also shows similarity to that of compound semiconductor films.

Hawley, Marilyn E [Los Alamos National Laboratory; Biegalski, Michael D [ORNL; Schlom, Darrell G [CORNELL U.

2008-01-01T23:59:59.000Z

484

Role of lattice strain and defect chemistry on the oxygen vacancy migration at the (8.3%Y2O3-ZRO2)/SrTiO3 hetero-interface: A first principles study  

E-Print Network (OSTI)

We report on the mechanism and the upper limits in the increase of oxygen ion conductivity at oxide hetero-interfaces, particularly the 8.3%Y2O3-ZrO2/SrTiO3 (YSZ/STO) as a model interface. We consider two factors contributing ...

Yildiz, Bilge

485

Structural, chemical, and electronic state on La[subscript 0.7]Sr[subscript 0.3]MnO[subscript 3] dense thin-film surfaces at high temperature - Surface segregation  

E-Print Network (OSTI)

The evolution of the surface topographic and electronic structure and chemical state of the La0.7Sr0.3MnO3 (LSMO) thin films were probed using Scanning Tunneling microscopy and X-ray photoelectron spectroscopy to identify ...

Jalili, Helia

486

SrZn{sub 2}Sn{sub 2} and Ca{sub 2}Zn{sub 3}Sn{sub 6} - two new Ae-Zn-Sn polar intermetallic compounds (Ae: alkaline earth metal)  

Science Conference Proceedings (OSTI)

SrZn{sub 2}Sn{sub 2} and Ca{sub 2}Zn{sub 3}Sn{sub 6}, two closely related new polar intermetallic compounds, were obtained by high temperature reactions of the elements. Their crystal structures were determined with single crystal XRD methods, and their electronic structures were analyzed by means of DFT calculations. The Zn-Sn structure part of SrZn{sub 2}Sn{sub 2} comprises (anti-)PbO-like {l_brace}ZnSn{sub 4/4}{r_brace} and {l_brace}SnZn{sub 4/4}{r_brace} layers. Ca{sub 2}Zn{sub 3}Sn{sub 6} shows similar {l_brace}ZnSn{sub 4/4}{r_brace} layers and {l_brace}Sn{sub 4}Zn{r_brace} slabs constructed of a covalently bonded Sn scaffold capped by Zn atoms. For both phases, the two types of layers are alternatingly stacked and interconnected via Zn-Sn bonds. SrZn{sub 2}Sn{sub 2} adopts the SrPd{sub 2}Bi{sub 2} structure type, and Ca{sub 2}Zn{sub 3}Sn{sub 6} is isotypic to the R{sub 2}Zn{sub 3}Ge{sub 6} compounds (R=La, Ce, Pr, Nd). Band structure calculations indicate that both SrZn{sub 2}Sn{sub 2} and Ca{sub 2}Zn{sub 3}Sn{sub 6} are metallic. Analyses of the chemical bonding with the electron localization function (ELF) show lone pair like basins at Sn atoms and Zn-Sn bonding interactions between the layers for both title phases, and covalent Sn-Sn bonding within the {l_brace}Sn{sub 4}Zn{r_brace} layers of Ca{sub 2}Zn{sub 3}Sn{sub 6}. - Graphical abstract: Crystal structures of the new Ae-Zn-Sn polar intermetallic phases SrZn{sub 2}Sn{sub 2} and Ca{sub 2}Zn{sub 3}Sn{sub 6}. Highlights: Black-Right-Pointing-Pointer New polar intermetallic phases SrZn{sub 2}Sn{sub 2} and Ca{sub 2}Zn{sub 3}Sn{sub 6}. Black-Right-Pointing-Pointer Obtained by high temperature reactions of the elements. Black-Right-Pointing-Pointer Single crystal XRD structure determination and DFT electronic structure calculations. Black-Right-Pointing-Pointer Closely related crystal and electronic structures. Black-Right-Pointing-Pointer Metallic conductivity coexisting with lone pairs and covalent bonding features.

Stegmaier, Saskia [Department Chemie, Technische Universitaet Muenchen, Lichtenbergstrasse 4, 85747 Garching (Germany); Faessler, Thomas F., E-mail: Thomas.Faessler@lrz.tum.de [Department Chemie, Technische Universitaet Muenchen, Lichtenbergstrasse 4, 85747 Garching (Germany)

2012-08-15T23:59:59.000Z

487

Exposure Values-1991, Cincinnati, Ohio. Atwood, C. L, 1992. StatisticalAnaZysis of Radiological Data from WERF Fly Ash, EGG-SR-I0233.  

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

6. REFERENCES 6. REFERENCES American Conference of Governmental Industrial Hygienists (ACGIH), 1991. Guide to Occupational Exposure Values-1991, Cincinnati, Ohio. Atwood, C. L, 1992. StatisticalAnaZysis of Radiological Data from WERF Fly Ash, EGG-SR-I0233. Berry, W. J. and J. L Petty, 1990. Summary of Available Baseline Environmental Information for the Radioactive Waste Management Complex at the Idaho National Engineering Laboratory, EGG-WM-9063, EG&G Idaho, Inc., Idaho Falls, Idaho. Bowman et aI., 1984. INEL Environmental Characterization Report, EGG-NPR-6688, EG&G Idaho, Inc., Idaho Falls, Idaho. DOE (U.S. Department of Energy), 1980. Final Environmental Impact Statement, U.S. Spent Fuel Policy, DOE/EIS-0015, Assistant Secretary for Nuclear Energy, Washington, D.C.

488

Direct Evidence for the Suppression of Charge Stripes in Epitaxial {La1.67Sr0.33NiO4} Films  

Science Conference Proceedings (OSTI)

We have successfully grown epitaxial La1.67Sr0.33NiO4 films with a small crystalline mosaic using pulsed laser deposition. With synchrotron radiation, the x-ray-diffraction peaks associated with charge stripes have been successfully observed for relatively thick films. Anomalies due to the charge-ordering transition have been examined using four-point probe resistivity measurements. X-ray scattering provides direct evidence for suppression of the stripe phase in thinner samples; the phase disappears for film thicknesses 2600 Angstroms. The suppression appears to be a result of shrinking the stripe phase domains. This may reflect the stripe phase progressing from nematic to isotropic.

Xie,C.; Budnick, J.; Hines, W.; Wells, B.; He, F.; Moodenbaugh, A.

2008-01-01T23:59:59.000Z

489

Vacancy related defects in La{sub 0.5}Sr{sub 0.5}CoO{sub 3-{delta}} thin films  

Science Conference Proceedings (OSTI)

Laser ablated La{sub 0.5}Sr{sub 0.5}CoO{sub 3-{delta}} thin films have been studied by Doppler-broadening-detected positron annihilation using a variable-energy positron beam. The oxygen partial pressure during cooling from the growth temperature was altered through the range 760 torr to 10{sup -5} torr to change the oxygen non-stoichiometry of the films. The measured Doppler broadened lineshape parameter S was found to increase with increasing oxygen nonstoichiometry. For films cooled with an oxygen partial pressure of {le} 10{sup -4} Torr positron trapping to monovacancy type defects is inferred. For the film cooled in 10{sup -5} torr oxygen the magnitude of the increase in S, with respect to that measured from the film cooled in 760 Torr oxygen, showed positron trapping to vacancy cluster defects was occurring.

Keeble, D.J. [Univ. of Dundee (United Kingdom). Carnegie Lab. of Physics; Krishnan, A. [Michigan Technological Univ., Houghton, MI (United States). Dept. of Physics; Nielsen, B. [Brookhaven National Lab., Upton, NY (United States)] [and others

1996-12-31T23:59:59.000Z

490

Enhanced Shrinkage of Lanthanum Strontium Manganite (La0.90Sr0.10MnO3+?) Resulting from Thermal and Oxygen Partial Pressure Cycling  

Science Conference Proceedings (OSTI)

Exposure of La0.9Sr0.1MnO3+? to repeated oxygen partial pressure cycles (air/10 ppm O2) resulted in enhanced densification rates, similar to behavior shown previously due to thermal cycling. Shrinkage rates in the temperature range 700 to 1000oC were orders of magnitude higher than Makipirtti-Meng model estimations based on stepwise isothermal dilatometry results at high temperature. A maximum in enhanced shrinkage due to oxygen partial pressure cycling occurred at 900oC. Shrinkage was greatest when LSM-10 bars that were first equilibrated in air were exposed to gas flows of lower oxygen fugacity than in the reverse direction. The former creates transient cation and oxygen vacancies well above the equilibrium concentration, resulting in enhanced mobility. These vacancies annihilate as Schottky equilibria is re-established, whereas the latter condition does not lead to excess vacancy concentrations.

McCarthy, Ben; Pederson, Larry R.; Anderson, Harlan U.; Zhou, Xiao Dong; Singh, Prabhakar; Coffey, Greg W.; Thomsen, Ed C.

2007-10-01T23:59:59.000Z

491

Photoluminescence properties of SrAl{sub 2}O{sub 4}:Eu{sup 2+},Dy{sup 3+} thin phosphor films grown by pulsed laser deposition  

SciTech Connect

Thin films of SrAl{sub 2}O{sub 4}:Eu{sup 2+},Dy{sup 3+} phosphor were deposited on silicon [Si (100)] substrates using a 248 nm KrF pulsed laser. Deposition parameters, such as substrate temperature, pulse repetition rate, number of laser pulses, and base pressure, were varied during the film deposition process. Based on the x-ray diffraction data, all the films were amorphous but were emitting visible light when excited by a monochromatic xenon lamp. The chemical composition and the stoichiometry of the films determined by the Rutherford backscattering spectroscopy were consistent with the commercial SrAl{sub 2}O{sub 4}:Eu{sup 2+},Dy{sup 3+} powder used to prepare the films. Photoluminescence (PL) emission spectra of the films were characterized by major green emission with a maximum at {approx}520 nm and minor red emission with a maximum at 630 nm. The green and red photoluminescence at 520 and 630 nm are associated with the 4f{sup 6}5d{yields}4f{sup 7}({sup 8}S{sub 7/2}) and {sup 5}D{sub 0}-{sup 7}F{sub 2} transitions of Eu{sup 2+} and residual Eu{sup 3+} ions, respectively. Brighter films were shown to have relatively higher values of the root mean square surface roughness, which were determined from the atomic force microscopy data. The effects of processing parameters on the PL intensity are discussed.

Ntwaeaborwa, O. M.; Nsimama, P. D.; Pitale, Shreyas; Nagpure, I. M.; Kumar, Vinay; Coetsee, E.; Terblans, J. J.; Swart, H. C.; Sechogela, P. T. [Department of Physics, University of the Free State, Bloemfontein ZA 9300 (South Africa); Materials Research Department, Ithemba Labs, Somerset West ZA7130 (South Africa)

2010-07-15T23:59:59.000Z

492

Geology of the Yucca Mountain Region, Chapter in Stuckless, J.S., ED., Yucca Mountain, Nevada - A Proposed Geologic Repository for High-Level Radioactive Waste  

SciTech Connect

Yucca Mountain has been proposed as the site for the Nation's first geologic repository for high-level radioactive waste. This chapter provides the geologic framework for the Yucca Mountain region. The regional geologic units range in age from late Precambrian through Holocene, and these are described briefly. Yucca Mountain is composed dominantly of pyroclastic units that range in age from 11.4 to 15.2 Ma. The proposed repository would be constructed within the Topopah Spring Tuff, which is the lower of two major zoned and welded ash-flow tuffs within the Paintbrush Group. The two welded tuffs are separated by the partly to nonwelded Pah Canyon Tuff and Yucca Mountain Tuff, which together figure prominently in the hydrology of the unsaturated zone. The Quaternary deposits are primarily alluvial sediments with minor basaltic cinder cones and flows. Both have been studied extensively because of their importance in predicting the long-term performance of the proposed repository. Basaltic volcanism began about 10 Ma and continued as recently as about 80 ka with the eruption of cones and flows at Lathrop Wells, approximately 10 km south-southwest of Yucca Mountain. Geologic structure in the Yucca Mountain region is complex. During the latest Paleozoic and Mesozoic, strong compressional forces caused tight folding and thrust faulting. The present regional setting is one of extension, and normal faulting has been active from the Miocene through to the present. There are three major local tectonic domains: (1) Basin and Range, (2) Walker Lane, and (3) Inyo-Mono. Each domain has an effect on the stability of Yucca Mountain.

J.S. Stuckless; D. O'Leary

2006-09-25T23:59:59.000Z

493

MARCO FANNO WORKING PAPER N.78The future of the working classes: A comparison between J.S. Mill and A. Marshall  

E-Print Network (OSTI)

Abstract. Both J. S. Mill and A. Marshall had a lifelong concern with the living conditions of the working classes and theorized the possibility of a new age, characterized by a widespread mental and moral cultivation. This paper compares the precise arguments put forward by them in the period ranging from Mill?s The Claims of Labour (1845) to Marshall?s Principles (1890), against the background of the evidence of progress they had. It is argued that, at different stages and with different specific arguments, their predictions relied on self-reinforcing mechanisms, in which a better life was the cause, no less than the effect, of progress. In order to make similarities and differences more transparent from a logical point of view, two simple mathematical formulations are proposed.

Universit Degli Studi Di Padova; Arrigo Opocher; Universit Di Padova; Arrigo Opocher; Arrigo Opocher

2008-01-01T23:59:59.000Z

494

Synthesis, crystal structure and photoluminescence of a new Eu-doped Sr containing sialon (Sr{sub 0.94}Eu{sub 0.06})(Al{sub 0.3}Si{sub 0.7}){sub 4}(N{sub 0.8}O{sub 0.2}){sub 6}  

SciTech Connect

Colorless transparent platelet single crystals of a novel Eu{sup 2+}-doped strontium silicon aluminum oxynitride, (Sr{sub 0.94}Eu{sub 0.06})(Al{sub 0.3}Si{sub 0.7}){sub 4}(N{sub 0.8}O{sub 0.2}){sub 6}, were prepared at 1800 Degree-Sign C and 0.92 MPa of N{sub 2}. Fundamental reflections of electron and X-ray diffraction of the crystals were indexed with a face-centered orthorhombic unit cell (a=5.8061(5) A, b=37.762(3) A, c=9.5936(9) A). Diffuse streaks elongated in the b-axis direction were observed around the fundamental reflections hkl with h=2n+1 of the electron and X-ray diffraction, indicating stacking faults of (0 1 0)[1 0 0]/2. A crystal structure model without the stacking faults was obtained using the X-ray diffraction data of the fundamental reflections with the space group Fdd2. A SiN{sub 4}-tetrahedron double layer of [SiN{sub 2}]{sub 2} and a Sr/Eu double layer of [(Sr{sub 0.94}Eu{sub 0.06})Al{sub 1.2}Si{sub 0.8}N{sub 0.8} O{sub 1.2}]{sub 2} are stacked alternately along the b-axis direction. The title compound showed an emission with a peak wavelength of 490 nm under 334 nm excitation at room temperature. - Graphical abstract: Single crystals of a novel Eu{sup 2+}-doped strontium silicon aluminum oxynitride, (Sr{sub 0.94}Eu{sub 0.06})(Al{sub 0.3}Si{sub 0.7}){sub 4}(N{sub 0.8}O{sub 0.2}){sub 6}, having stacking faults on the (0 1 0) plane of an orthorhombic cell, were prepared at 1800 Degree-Sign C and 0.92 MPa of N{sub 2}. The compound showed emission with a peak wavelength of 490 nm under 334 nm excitation at room temperature. Highlights: Black-Right-Pointing-Pointer A new compound Eu{sup 2+}-doped (Sr{sub 0.94}Eu{sub 0.06})(Al{sub 0.3}Si{sub 0.7}){sub 4}(N{sub 0.8}O{sub 0.2}){sub 6} was prepared. Black-Right-Pointing-Pointer Stacking faults in the compound were clarified by electron and X-ray diffraction. Black-Right-Pointing-Pointer A basic crystal structure model was obtained based on the X-ray diffraction data. Black-Right-Pointing-Pointer An emission of 490 nm under 334 nm excitation at room temperature was observed.

Yamane, Hisanori, E-mail: yamane@tagen.tohoku.ac.jp [Institute of Multidisciplinary Research for Advanced Materials, Tohoku University 2-1-1 Katahira, Aoba-ku, Sendai 980-8577 (Japan); Shimooka, Satoshi; Uheda, Kyota [Mitsubishi Chemical Group, Science and Technology Research Center, Inc. 1000 Kamoshida-cho, Aoba-ku, Yokohama 227-8502 (Japan)

2012-06-15T23:59:59.000Z

495

Low temperature fluorination of Sr{sub 3}Fe{sub 2}O{sub 7-x} with polyvinylidine fluoride: An X-ray powder diffraction and Moessbauer spectroscopy study  

SciTech Connect

Fluorination of the Ruddlesden Popper phase, Sr{sub 3}Fe{sub 2}O{sub 7-x} by heat treatment with polyvinylidine fluoride (PVDF) gives a range of novel oxide fluoride compounds. Fluorination with 1 mol equivalent PVDF leads to a filling of the normal Ruddlesden Popper structure anion sites and a material of composition Sr{sub 3}Fe{sub 2}O{sub 5+x}F{sub 2-x} (x Almost-Equal-To 0.28(4)) which contains both Fe{sup 4+} and Fe{sup 3+}. Increasing the amount of PVDF to 2 mol equivalent leads to an increase in anion content due to filling of half the interstitial sites within the structure, with iron being completely reduced to Fe{sup 3+} leading to a composition Sr{sub 3}Fe{sub 2}O{sub 4}F{sub 4}. An increase in the amount of PVDF to Almost-Equal-To 3 mol equivalent leads to a further increase in unit cell volume, attributed to complete filling of the interstitial sites and a composition Sr{sub 3}Fe{sub 2}O{sub 3}F{sub 6}. {sup 57}Fe Moessbauer spectra in the temperature range 10-300 K demonstrated the complexity of the magnetic interactions in each of the three phases which reflect different local compositions of oxygen and fluorine around the iron ions thus influencing the superexchange pathways. - Graphical abstract: Low temperature (375 Degree-Sign C) fluorination of Sr{sub 3}Fe{sub 2}O{sub 7-x} with poly(vinylidene fluoride) leads to the production of three new Ruddlesden Popper oxide fluorides with progressive filling of the anion sites within the structure. Highlights: Black-Right-Pointing-Pointer The fluorination of Sr{sub 3}Fe{sub 2}O{sub 7-x} using PVDF. Black-Right-Pointing-Pointer The control of the fluorine content with amount of PVDF used. Black-Right-Pointing-Pointer The synthesis of three new Fe based oxide fluorides. Black-Right-Pointing-Pointer The identification of the structures of these oxide fluorides.

Hancock, Cathryn A. [School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom); Herranz, Tirma; Marco, Jose F. [Instituto de Quimica Fisica, Consejo Superior de Investigaciones Cientificas, Seranno 119, 28006 Madrid (Spain); Berry, Frank J. [School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom); Slater, Peter R., E-mail: p.r.slater@bham.ac.uk [School of Chemistry, University of Birmingham, Edgbaston, Birmingham B15 2TT (United Kingdom)

2012-02-15T23:59:59.000Z

496

An Examination of Criticality-Sensitive Approaches to Coordination Pedro Szekely, Rajiv Maheswaran, Robert Neches, Craig Rogers and Romeo Sanchez  

E-Print Network (OSTI)

/personnel management in global enterprise settings, and multiple-rover/UAV missions in science-discovery or search) between nodes. An NLE is an enabling cou- pling between nodes, a directed link between a source regardless of the their probability distributions. If the target is a task, the NLE applies to all descendant

Fitzpatrick, Stephen

497

A Taxonomic Revision and Phylogenetic Analysis of the Ant Genus Gnamptogenys Roger in Southeast Asia and Australasia (Hymenoptera: Formicidae: Ponerinae)  

E-Print Network (OSTI)

2w 1m ANIC. INDONESIA. Irian Jaya: PT, Freeport Concession,examined. INDONESIA. Irian Jaya: PT, Freeport Concession,

Lattke, John E.

2004-01-01T23:59:59.000Z

498

Directions to Petroleum Abstracts Petroleum Abstracts' main office is located in the basement of John Rogers Hall (JRH)  

E-Print Network (OSTI)

Directions to Petroleum Abstracts Petroleum Abstracts' main office is located in the basement Tucker Drive in Tulsa, Oklahoma. Directions to the TU campus are included below. Visitor parking of the library that you wish to visit Petroleum Abstracts and they will contact us to direct you to our office

Reynolds, Albert C.

499

The onset of turbulence in 3D collisionless magnetic reconnection B. N. Rogers, J. F. Drake, and M. A. Shay  

E-Print Network (OSTI)

, and M. A. Shay Institute for Plasma Research, University of Maryland, College Park, MD 20742 Abstract

Shay, Michael

500

Utility Scale Wind Turbines on a Grid Connected Island Mohit Dua, Anthony L. Rogers, James F. Manwell,  

E-Print Network (OSTI)

of such a crane to the island is not feasible. Valmont's Wind Energy Structure [2] addresses this problem in the definition of renewable energy precludes the development of wind energy in the state. Both Maine. The levelized cost of electricity purchased was calculated for the present case (no wind energy) and with wind

Massachusetts at Amherst, University of