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  1. Belize Electricity Limited | Open Energy Information

    Open Energy Info (EERE)

    Belize Electricity Limited Jump to: navigation, search Logo: Belize Electricity Limited Name: Belize Electricity Limited Abbreviation: BEL Address: PO Box 327 Place: Belize City,...

  2. Belize-Caribbean Community (CARICOM) Sustainable Energy Roadmap...

    Open Energy Info (EERE)

    Belize-Caribbean Community (CARICOM) Sustainable Energy Roadmap and Strategy Jump to: navigation, search Name Belize-Caribbean Community (CARICOM) Sustainable Energy Roadmap and...

  3. Belize: Energy Resources | Open Energy Information

    Open Energy Info (EERE)

    Country Profile Name Belize Population 324,528 GDP 1,554,000,000 Energy Consumption 0.02 Quadrillion Btu 2-letter ISO code BZ 3-letter ISO code BLZ Numeric ISO...

  4. Belize-OAS Cellulosic Ethanol Market Assessment | Open Energy...

    Open Energy Info (EERE)

    OAS Cellulosic Ethanol Market Assessment Jump to: navigation, search Name Belize-OAS Cellulosic Ethanol Market Assessment AgencyCompany Organization Organization of American...

  5. Belize-Low-Carbon Energy for Central America: Building a Regional...

    Open Energy Info (EERE)

    Low-Carbon Energy for Central America: Building a Regional Model Jump to: navigation, search Name Belize-Low-Carbon Energy for Central America: Building a Regional Model Agency...

  6. Physical constraints on dolomite crust formation, Ambergris Cay Belize

    SciTech Connect (OSTI)

    Birdwell, B.A.; Bischoff, W.D.; Mazzullo, S.J. )

    1990-05-01

    Dolomitic crusts forming on a peritidal flat on Ambergris Cay, Belize, occur beneath surface sediment adjacent to, but not within, small saline (60-90 ppt) ponds. Upper crusts, 2-12 cm thick forming at or slightly below the water table (approximately equivalent to lagoon water level) are areally restricted by (1) ponds where sediment lies below 20-50 cm of water, (2) high and relatively dry areas where sediment accumulation of more than 15 cm above water level supports diverse vegetation, and (3) low areas affected by mangrove encroachment where preexisting crusts are perforated by roots and displaced. The lower crusts occur immediately above the Pleistocene in lows beneath the Holocene sediment and on exposed Pleistocene surfaces. Estimates from x-ray diffraction analysis indicate 80-100% dolomite content within the upper crusts and 50-60% dolomite content in the lower crusts. Unlithified sediment above and below the upper crust contain up to 80% dolomite. Compositions range from Ca{sub 56}, Mg{sub 44} in the upper crusts to Ca{sub 60} Mg{sub 40} in the lower crusts. There is no correlation between stoichiometry and ordering in the dolomites; all are poorly ordered as indicated by very weak (015) and (021) superstructure peaks. Where crusts are not 100% dolomite, the dolomite is evident as euhedral cements within pores, especially within foraminiferal tests, and as micrite along algal laminations and walls of burrows. However, preliminary examinations with scanning electron microscopy and energy dispersive x-ray mapping show that magnesium enrichment is pervasive within these crusts and may represent Mg-enrichment of calcite as an intermediate stage in dolomite formation.

  7. Energy Transition Initiative: Island Energy Snapshot - Belize; U.S. Department of Energy (DOE), NREL (National Renewable Energy Laboratory)

    SciTech Connect (OSTI)

    2015-03-01

    This profile provides a snapshot of the energy landscape of Belize, a Central American country bordering Mexico to the north, Guatemala to the west and south, and the Caribbean Sea to the east. Although not an island nation, Belize is included in this energy snapshot series because it is a member of the Caribbean Community (CARICOM), an alliance of 15 Caribbean nations in the region.

  8. Paint Rock and southwest Paint Rock fields, Concho County, Texas: Strawn analogs of modern island carbonate facies of Ambergris Cay, Belize

    SciTech Connect (OSTI)

    Reid, A.M.; Mazzullo, S.J.

    1987-02-01

    Lower Strawn (Desmoinesian Goen Limestone) reservoirs at Paint Rock and Southwest Paint Rock fields are a complex of carbonate and associated facies interpreted as having been deposited in various environments on and around large, emergent islands on shallow carbonate shelves. The origin and geometries of the component lithofacies in these fields, and their reservoir diagenetic histories, are similar to those presently accumulating on Ambergris Cay, a linear island complex on the northern shelf of Belize. Paint Rock field originated as a narrow, elongate Chaetetes reef trend that formed the foundation on which the overlying island facies were deposited. As on Ambergris Cay, these reef limestones developed extensive porosity during postdepositional subaerial exposure due to meteoric leaching. In contrast, Southwest Paint Rock field is cored by older island deposits rather than reef limestones. With ensuing stillstand or subsequent sea level rise, beach grainstones were deposited along the windward and leeward margins of the foundation highs in these fields. Tight lagoonal micrites and coals (peat-swamp facies) comprise the inner island facies, and are locally associated with porous supratidal dolomites. These island complexes are transected locally by tidal channels that are filled with nonporous micrites. Repeated sea level fluctuations during the history of these fields resulted in a characteristic cyclic stratigraphy of stacked island facies and reservoirs. The reservoirs in the field are developed in the bedrock or older island cores, as well as in the overlying beach facies and supratidal dolomites. These fields are mappable as linear stratigraphic traps with low-relief closure, and are readily identified by subsurface geologic and facies analyses. Similar shelf island-type fields analogous to these strawn and Holocene Belizean examples are found throughout the Midland basin and Eastern shelf.

  9. Rosa dos Ventos Ltda | Open Energy Information

    Open Energy Info (EERE)

    Ltda Jump to: navigation, search Name: Rosa dos Ventos Ltda Place: Fortaleza, Ceara, Brazil Sector: Renewable Energy, Wind energy Product: Brazil-based wind farm developer and...

  10. Lagoa dos Ventos Geradora Eolica S A | Open Energy Information

    Open Energy Info (EERE)

    Lagoa dos Ventos Geradora Eolica S A Jump to: navigation, search Name: Lagoa dos Ventos Geradora Eolica S.A. Place: Guamare, Rio Grande do Norte, Brazil Sector: Wind energy...

  11. Associacao Brasileira dos Produtores de Pinhao Manso ABPPM |...

    Open Energy Info (EERE)

    (ABPPM) Place: Sao Paulo, Sao Paulo, Brazil Zip: 04635-020 Product: Brazil-based jatropha producers association. References: Associacao Brasileira dos Produtores de Pinhao...

  12. When worlds collide - Mac to MS-DOS. [Data transfer to and from Apple Macintosh computers and MS-DOS based personal computers

    SciTech Connect (OSTI)

    Busbey, A.B.

    1989-04-01

    A number of methods and products, both hardware and software, to allow data exchange between Apple Macintosh computers and MS-DOS based systems. These included serial null modem connections, MS-DOS hardware and/or software emulation, MS-DOS disk-reading hardware and networking.

  13. ACONF DOS

    Energy Science and Technology Software Center (OSTI)

    2009-03-25

    ACONF is a system which has been developed by Sandia National Laboratories. ACONF is a system for optimizing the interaction between generator, photovoltaic system, batteries, and load in independent non-grid-tied electrical systems. It is primarily used in rural locations where running utility lines proves costly if it is possible at all. It is controlled by an Ampro PC-104 Coremodule 400 controller system. The code for this system is written in the BASIC programming language. Themore » routine contained in this document was written originally by Phil Symons. ACONF is intended to increase the efficiency of freestanding electrical systems to increase battery life and more efficiently use generator fuel.« less

  14. Age and isotopic relationships among the angrites Lewis Cliff 86010 and Angra dos Reis

    SciTech Connect (OSTI)

    Lugmair, G.W. ); Galer, S.J.G. Max-Planck-Inst. fuer Chemie, Mainz )

    1992-04-01

    Results of a wide-ranging isotopic investigation of the unique Antarctican angrite LEW-86010 (LEW) are presented, together with a reassessment of the type angrite Angra dos Reis (ADOR). The principal objectives of this study are to obtain precise radiometric ages, initial Sr isotopic compositions, and to search for the erstwhile presence of the short-lived nuclei {sup 146}Sm and {sup 26}Al via their daughter products. The isotopic compositions of Sm, U, Ca, and Ti were also measured. This allows a detailed appraisal to be made of the relations between, and the genealogy of, these two angrites.

  15. Forest Cover and Deforestation in Belize: 1980-2010 | Open Energy...

    Open Energy Info (EERE)

    of Latin America & the Caribbean (CATHALAC), National Aeronautics and Space Administration Sector Land Focus Area Forestry Topics Co-benefits assessment, GHG inventory,...

  16. T-570: HP Security Bulletin- HP-UX Running OpenSSL, Remote Execution of Arbitrary Code, Denial of Service (DoS), Authentication Bypass

    Broader source: Energy.gov [DOE]

    A potential security vulnerability has been identified with HP-UX OpenSSL. This vulnerability could be exploited remotely to execute arbitrary code or create a Denial of Service (DoS) or an authentication bypass.

  17. C. A. Tulk,1, a) A. M. dos Santos,1 J. C. Neuefeind,1, b) J. J. Molaison,1 B. C. Sales,2 and V. Honkimaeki3

    Office of Scientific and Technical Information (OSTI)

    Density driven structural transformations in amorphous semiconductor clathrates C. A. Tulk,1, a) A. M. dos Santos,1 J. C. Neuefeind,1, b) J. J. Molaison,1 B. C. Sales,2 and V. Honkimaeki3 4) Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge TN 37831, USA 2) Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge TN 37831, USA 3) European Synchrotron Radiation Facility, F-38043 Grenoble, France (Dated: 20 November 2014) The pressure induced

  18. File:Central America 50m Wind Power.pdf | Open Energy Information

    Open Energy Info (EERE)

    Date 20041022 Extent International Countries Belize, Guatemala, Honduras, El Salvador, Nicaragua UN Region Central America Coordinates 13.846614265322,...

  19. File:Cammetst 58.pdf | Open Energy Information

    Open Energy Info (EERE)

    Date 20031210 Extent Central America Countries Belize, Guatemala, Honduras, El Salvador, Nicaragua UN Region Central America Regions Central America Coordinates...

  20. EPA-GHG Inventory Targeted Data Collection Strategies and Software...

    Open Energy Info (EERE)

    inventorycapacitybuildingswtoo Country: Nicaragua, Panama, Guatemala, Costa Rica, El Salvador, Honduras, Belize Cost: Free Central America, Central America, Central America,...

  1. NREL Hosts Consumer Energy Expo

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

    Hosts Consumer Energy Expo For more information contact: Sarah Holmes Barba, 303-275-3023 email: Sarah Barba Golden, Colo., May. 23, 2001 - Consumers can learn about reducing their home energy consumption and get advice from experts who specialize in energy efficient and renewable energy products and services at the Consumer Energy Expo June 14 - 16 at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL). The Expo includes exhibits and activities for the entire family.

  2. NREL Manager Elected to IREC Board of Directors

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

    Manager Elected to IREC Board of Directors For more information contact: Sarah Holmes Barba, 303-275-3023 email: Sarah Barba Golden, Colo., May 14, 2001 - David Warner, manager of the Information and Outreach Program and the Stakeholder Partnerships Office at the Department of Energy's National Renewable Energy Laboratory, was recently named vice chair of the Interstate Renewable Energy Council (IREC). On April 22, IREC elected a new Board of Directors, tapping into a diverse group of

  3. NREL Transportation Project to Reduce Fuel Usage

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

    Transportation Project to Reduce Fuel Usage For more information contact: Sarah Holmes Barba, 303-275-3023 email: Sarah Barba Golden, Colo., Mar. 23, 2001 - The Jefferson County Seniors Resource Center (SRC) Paratransit Service has become an important part of Eulalia Gaillard's life since her stroke in 1996. She calls on SRC to drive her to cardiologist, neurologist and chiropractor appointments each week. "It's wonderful," Gaillard says. "I'd give this program 150 plus in regards

  4. NREL and California Air Agency to Test Clean Diesel Fuels

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

    California Air Agency to Test Clean Diesel Fuels For more information contact: Sarah Holmes Barba, 303-275-3023 email: Sarah Barba Golden, Colo., Oct. 4, 2000 - The U.S. Department of Energy's (DOE) National Renewable Energy Laboratory (NREL) will test Fischer-Tropsch synthetic diesel fuel for California's South Coast Air Quality Management District (SCAQMD) to determine if using the fuel can help reduce air pollution. Fischer-Tropsch fuels can be produced from natural gas, biomass or coal. They

  5. NREL'S Morgan-Smith Honored by Martin Luther King Commission

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

    NREL'S Morgan-Smith Honored by Martin Luther King Commission For more information contact: Sarah Holmes Barba, 303-275-3023 email: Sarah Barba Golden, Colo., Jan. 9, 2001 - Syl Morgan-Smith, Colorado Governmental Relations Manager with the U.S. Department of Energy's National Renewable Energy Laboratory (NREL), will receive the Trailblazer Award from the Colorado Martin Luther King Commission. This award and seven other humanitarian awards will be presented during the Commission's Annual Martin

  6. NREL, Governor's Office Help Coloradans Make Clean Energy Choices

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

    NREL, Governor's Office Help Coloradans Make Clean Energy Choices For more information contact: Sarah Holmes Barba, 303-275-3023 email: Sarah Holmes Barba Golden, Colo., Sept. 13, 2000 - A new publication provides Colorado consumers with the tools to select sensible clean-energy solutions. The booklet, Colorado's Clean Energy Choices, provides basic information on green power available today from Colorado utilities around the state. It also outlines how farmers and ranchers can generate their

  7. Greeley's Maplewood Middle School Stellar in Solar Car Race

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

    Greeley's Maplewood Middle School Stellar in Solar Car Race For more information contact: Sarah Holmes Barba, 303-275-3023 email: Sarah Barba Golden, Colo., May. 12, 2001 - Students from Greeley's Maplewood Middle School built the fastest model solar car and won the Junior Solar Sprint at the U.S. Department of Energy's National Renewable Energy Laboratory (NREL) today. A team from Lyons Middle School won top honors for design. Thirty-seven teams from across Colorado entered the 20-meter race,

  8. Status of U.S. Nuclear Outages - U.S. Energy Information Administratio...

    Gasoline and Diesel Fuel Update (EIA)

    Bahamas, The Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia Bosnia and Herzegovina Botswana Brazil Brunei Bulgaria Burkina Faso Burma (Myanmar) ...

  9. International - U.S. Energy Information Administration (EIA)

    Gasoline and Diesel Fuel Update (EIA)

    Bahamas, The Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia Bosnia and Herzegovina Botswana Brazil Brunei Bulgaria Burkina Faso Burma (Myanmar) ...

  10. Eia.gov BETA - U.S. Energy Information Administration (EIA) ...

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

    Bahamas, The Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia Bosnia and Herzegovina Botswana Brazil Brunei Bulgaria Burkina Faso Burma (Myanmar) ...

  11. Sandia Energy - SNL-ESSC (Sandia National Laboratories - Extreme...

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

    and Barbuda Argentina Armenia Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia Bosnia and Herzegovina Botswana...

  12. File:NREL-camdirjune.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  13. File:NREL-camdirsept.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  14. File:NREL-camdirapr.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  15. File:NREL-camdiraug.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  16. USAID Central America and Mexico Regional Climate Program (E...

    Open Energy Info (EERE)

    analysis Website http:www.usaid.govourwork Country Mexico, Guatemala, El Salvador, Nicaragua, Belize, Costa Rica, Panama, Honduras Central America, Central America,...

  17. File:NREL-camdirmay.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  18. File:NREL-camdirjan.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  19. File:NREL-camdiroct.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  20. File:NREL-camdirmar.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  1. File:NREL-camdirdec.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  2. File:NREL-camgloann.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  3. File:NREL-camdirfeb.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  4. File:NREL-camdirann.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  5. File:NREL-camdirnov.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  6. File:NREL-camdirjuly.pdf | Open Energy Information

    Open Energy Info (EERE)

    Creation Date 2003-12-10 Extent International Countries Belize, Guatemala, El Salvador, Honduras, Nicaragua UN Region Central America File history Click on a datetime to...

  7. High School Students Gear Up for Battle of the Brains

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

    High School Students Gear Up for Battle of the Brains For more information contact: Sarah Holmes Barba, 303-275-3023 email: Sarah Holmes Barba Golden, Colo., Feb. 13, 2001 - How many prime numbers are there between 30 and 60? Starch is the polymer of what monosaccharide? High school students from across Colorado will face such questions as they test their mental agility in the U.S. Department of Energy's (DOE) Colorado Science Bowl on Feb. 24 at the Colorado School of Mines in Golden. Thirty-two

  8. Tierra Concrete Homes Honored with Energy Star Award

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

    Tierra Concrete Homes Honored with Energy Star Award For more information contact: Sarah Holmes Barba, 303-275-3023 email: Sarah Homes Barba Golden, Colo., August 8, 2001 - Tierra Concrete Homes, Inc. of Pueblo, Colo., has been recognized as a leader in energy-efficient home building by Energy Star, a national program that develops energy-saving partnerships with the home building industry. The first-ever "Most Energy-Efficient Homes of the New Millennium" award was presented to

  9. Students to Race Solar-Powered Model Cars

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

    to Race Solar-Powered Model Cars For more information contact: Sarah Holmes Barba, 303-275-3023 or 303-588-3048 (cell) email: Sarah Barba Golden, Colo., May. 10, 2001 - Forty-two teams of middle school students from across Colorado will race model solar cars on Saturday, May 12. The cars, designed to tap into energy from the sun, are powered only by solar electricity. Sponsored by the U.S. Department of Energy's National Renewable Energy Laboratory (NREL), Kaiser-Hill, Midwest Research

  10. NREL: Dynamic Maps, GIS Data, and Analysis Tools - International...

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

    Bhutan.htm Central America Wind 50m Resolution (includes Belize, Cayman Islands, El Salvador, Guatemala, Honduras and Nicaragua (Zip 2.4 MB) 02192009 Central America.htm Chile...

  11. South America, Central America, the Caribbean, and Mexico

    SciTech Connect (OSTI)

    Deal, C.

    1981-10-01

    Summaries of oil and gas drillings, well completions, production, exploratory wells, exploration activity and wildcat drilling were given for South America, Central America, the Caribbean, and Mexico. The countries, islands, etc. included Argentina, Bahamas, Barbados, Belize, Bolivia, Brazil, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, French Guiana, Guatemala, Guyana, Haiti, Honduras, Jamaica, Leeward and Windward Islands, Mexico, Netherlands Antilles, Nicaragua, Panama, Paraguay, Peru, Puerto Rico, El Salvador, Surinam, Trinidad and Venezuela. 16 figures, 120 tables. (DP)

  12. Stump the Scientist Question Form | GE Global Research

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

    Please Help Us Stump the Scientist Ask Your Question *Required fields Name* Email* School/Company* Twitter Handle Country* Select Afghanistan Albania Algeria American Samoa Andorra Angola Antigua and Barbuda Argentina Armenia Australia Austria Azerbaijan Bahamas Bahrain Bangladesh Barbados Belarus Belgium Belize Benin Bermuda Bhutan Bolivia Bosnia and Herzegovina Botswana Brazil Brunei Bulgaria Burkina Faso Burundi Cambodia Cameroon Canada Cape Verde Cayman Islands Central African Republic Chad

  13. One Month, Two Reasons to Celebrate the Hispanic Energy Community | Un Mes, Dos Razones Para Celebrar la Comunidad Hispana en Energía

    Broader source: Energy.gov [DOE]

    As one of the nation’s largest ethnic minority groups, Hispanics can play a major role in America’s energy future. To empower these future leaders, the Energy Department provides resources that help Spanish-speaking families, teachers, and students learn about energy.

  14. Petroleum Coke Exports by Destination

    Gasoline and Diesel Fuel Update (EIA)

    163,868 182,222 184,167 191,219 197,491 195,868 1981-2015 Albania 165 220 467 267 2012-2015 Algeria 0 0 0 2001-2012 Angola 0 2001-2011 Argentina 0 412 1 1 201 3 1993-2015 Aruba 0 2014-2014 Australia 3,167 3,229 2,841 2,715 2,560 2,477 1993-2015 Austria 1995-2007 Azerbaijan 0 5 2 2010-2015 Bangladesh 0 2014-2014 Bahama Islands 0 2000-2010 Bahrain 116 713 299 563 0 1993-2014 Barbados 33 169 179 121 163 158 2007-2015 Belarus 2004-2004 Belgium 3,295 3,337 2,463 2,098 2,572 2,161 1993-2015 Belize 4 2

  15. Technical Report on Application and Development of Appropriate Tools and Technologies for Cost-Effective Carbon Sequestration

    SciTech Connect (OSTI)

    Bill Stanley; Sandra Brown; Zoe Kant; Patrick Gonzalez

    2009-01-07

    The Nature Conservancy participated in a Cooperative Agreement with the Department of Energy (DOE) National Energy Technology Laboratory (NETL) to explore the compatibility of carbon sequestration in terrestrial ecosystems and the conservation of biodiversity. The title of the research project was 'Application and Development of Appropriate Tools and Technologies for Cost-Effective Carbon Sequestration'. The objectives of the project were to: (1) improve carbon offset estimates produced in both the planning and implementation phases of projects; (2) build valid and standardized approaches to estimate project carbon benefits at a reasonable cost; and (3) lay the groundwork for implementing cost-effective projects, providing new testing ground for biodiversity protection and restoration projects that store additional atmospheric carbon. This Final Technical Report discusses the results of the six tasks that The Nature Conservancy undertook to answer research needs while facilitating the development of real projects with measurable greenhouse gas reductions. The research described in this report occurred between July 1st 2001 and July 10th 2008. The specific tasks discussed include: Task 1: carbon inventory advancements; Task 2: emerging technologies for remote sensing of terrestrial carbon; Task 3: baseline method development; Task 4: third-party technical advisory panel meetings; Task 5: new project feasibility studies; and Task 6: development of new project software screening tool. The project occurred in two phases. The first was a focused exploration of specific carbon measurement and monitoring methodologies and pre-selected carbon sequestration opportunities. The second was a more systematic and comprehensive approach to compare various competing measurement and monitoring methodologies, and assessment of a variety of carbon sequestration opportunities in order to find those that are the lowest cost with the greatest combined carbon and other environmental benefits. In the first phase we worked in the U.S., Brazil, Belize, Bolivia, Peru, and Chile to develop and refine specific carbon inventory methods, pioneering a new remote-sensing method for cost-effectively measuring and monitoring terrestrial carbon sequestration and system for developing carbon baselines for both avoided deforestation and afforestation/reforestation projects. We evaluated the costs and carbon benefits of a number of specific terrestrial carbon sequestration activities throughout the U.S., including reforestation of abandoned mined lands in southwest Virginia, grassland restoration in Arizona and Indiana, and reforestation in the Mississippi Alluvial Delta. The most cost-effective U.S. terrestrial sequestration opportunity we found through these studies was reforestation in the Mississippi Alluvial Delta. In Phase II we conducted a more systematic assessment and comparison of several different measurement and monitoring approaches in the Northern Cascades of California, and a broad 11-state Northeast regional assessment, rather than pre-selected and targeted, analysis of terrestrial sequestration costs and benefits. Work was carried out in Brazil, Belize, Chile, Peru and the USA. Partners include the Winrock International Institute for Agricultural Development, The Sampson Group, Programme for Belize, Society for Wildlife Conservation (SPVS), Universidad Austral de Chile, Michael Lefsky, Colorado State University, UC Berkeley, the Carnegie Institution of Washington, ProNaturaleza, Ohio State University, Stephen F. Austin University, Geographical Modeling Services, Inc., WestWater, Los Alamos National Laboratory, Century Ecosystem Services, Mirant Corporation, General Motors, American Electric Power, Salt River Project, Applied Energy Systems, KeySpan, NiSource, and PSEG. This project, 'Application and Development of Appropriate Tools and Technologies for Cost-Effective Carbon Sequestration', has resulted in over 50 presentations and reports, available publicly through the Department of Energy or by visiting the links listed in Appendix 1. More important than the reports, the project has helped to lead to the development of on-the-ground projects in Southwestern Virginia, Louisiana, and Chile while informing policy development in Virginia, the Regional Greenhouse Gas Initiative, the California Climate Action Registry and U.S. and international programs.

  16. Oil and gas developments in South America, Central America, Caribbean area, and Mexico in 1987

    SciTech Connect (OSTI)

    Wiman, W.D.

    1988-10-01

    Exploration activity in South America, Central America, the Caribbean area, and Mexico in 1987 showed significant increases in seismic acquisition in Belize, Bolivia, Brazil, Costa Rica, Guatemala, Mexico, Paraguay, and Peru, and a decrease in Chile and Venezuela. Exploratory drilling increased in most major producing countries but was accompanied by a decline in development drilling. Most of the increase could be attributed to private companies fulfilling obligations under risk contracts; however, state oil companies in Bolivia, Chile, and Colombia showed significant increased activity, with only Mexico showing a decrease. Colombia again had a dramatic increase in production (29% from 1986). Noteworthy discoveries were made in Bolivia (Villamontes-1); Brazil, in the Solimoes basin (1-RUC-1-AM); Chile (Rio Honda-1); Colombia, in the Llanos basin (Austral-1, La Reforma-1, Libertad Norte-1, Cravo Este-1, and Cano Yarumal-1), in the Upper Magdalena basin (Toldado-1 and Los Mangos-1); Ecuador (Frontera-1, a joint-exploration venture with Colombia); Mexico, in the Chiapas-Tabasco region (Guacho-1 and Iridi-1), in the Frontera Norte area (Huatempo-1); Peru, in the Madre de Dios basin (Armihuari-4X); Trinidad (West East Queen's Beach-1); and Venezuela (Musipan-1X). Brazil's upper Amazon (Solimoes basin) discovery, Colombia's Upper Magdalena basin discoveries Toldado-1 and Los Mangos-1, Mexico's Chiapas-Tabasco discoveries, Peru's confirmation of the giant Cashiriari discovery of 1986, and Venezuela's success in Monagas state were the highlights of 1987. 5 figs., 8 tabs.

  17. Technical Progress Report on Application and Development of Appropriate Tools and Technologies for Cost-Effective Carbon Sequestration

    SciTech Connect (OSTI)

    Bill Stanley; Patrick Gonzalez; Sandra Brown; Jenny Henman; Ben Poulter; Sarah Woodhouse Murdock; Neil Sampson; Tim Pearson; Sarah Walker; Zoe Kant; Miguel Calmon; Gilberto Tiepolo

    2006-06-30

    The Nature Conservancy is participating in a Cooperative Agreement with the Department of Energy (DOE) National Energy Technology Laboratory (NETL) to explore the compatibility of carbon sequestration in terrestrial ecosystems and the conservation of biodiversity. The title of the research project is ''Application and Development of Appropriate Tools and Technologies for Cost-Effective Carbon Sequestration''. The objectives of the project are to: (1) improve carbon offset estimates produced in both the planning and implementation phases of projects; (2) build valid and standardized approaches to estimate project carbon benefits at a reasonable cost; and (3) lay the groundwork for implementing cost-effective projects, providing new testing ground for biodiversity protection and restoration projects that store additional atmospheric carbon. This Technical Progress Report discusses preliminary results of the six specific tasks that The Nature Conservancy is undertaking to answer research needs while facilitating the development of real projects with measurable greenhouse gas reductions. The research described in this report occurred between April 1st and July 30th 2006. The specific tasks discussed include: Task 1: carbon inventory advancements; Task 2: emerging technologies for remote sensing of terrestrial carbon; Task 3: baseline method development; Task 4: third-party technical advisory panel meetings; Task 5: new project feasibility studies; and Task 6: development of new project software screening tool. Work is being carried out in Brazil, Belize, Chile, Peru and the USA.

  18. Solar cooking trends--A preliminary report

    SciTech Connect (OSTI)

    Blum, B.L.

    1992-12-31

    This report discusses early results of research on trends in solar cooking worldwide and the key factors in those trends. It is based on household interviews in Belize, Honduras and Nicaragua and mail surveys from scattered individuals and promotion projects worldwide. Household interviews from six more countries will be included in future reports. Early data indicate that where solar cooking has been introduced an immediate, rapid increase in awareness and interest in solar cooking is followed by slow, sustained growth in actual solar cooking two or three years later, after an incubation period. Access to information and affordable materials for the cookers are important. Individual users and promoters both identify similar key elements for effective promotion projects, but in current projects many are often missing. Even so, successes of these small-scale efforts verify the benefits and acceptability of solar cooking to families in many regions, and should encourage much broader promotion efforts. Future reports will explore various economic, technical, cultural and environmental factors in solar cooking use as guides for larger efforts.

  19. Marti Ayers

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

    or U.S. Asia Realty or Uno Dos Corp. of South Florida or Dos Investment Partners or Phoenix Investment Partners or lntrAmerica or AMC Associations 1990-1992 when Bush was...

  20. Ayuda:Firmas | Open Energy Information

    Open Energy Info (EERE)

    - dos guiones (o un guin largo) junto con cuatro virgulillas (-- ) - deriva de la red Usenet, donde los dos guiones definen un bloque de firma. La cadena real de la firma...

  1. U-214: HP Network Node Manager Java JDK / JRE Multiple Vulnerabilities

    Broader source: Energy.gov [DOE]

    Vulnerabilities could be remotely exploited resulting in unauthorized information disclosure, modification, Denial of Service (DoS).

  2. Browse by Discipline -- E-print Network Subject Pathways: Chemistry...

    Office of Scientific and Technical Information (OSTI)

    (Mrcia Russman Gallas) - Instituto de Fsica, Universidade Federal do Rio Grande do ... (Guennady Gusev) - Departamento de Fsica dos Materiais e Mecnica, Universidade ...

  3. Dasa | Open Energy Information

    Open Energy Info (EERE)

    search Name: Dasa Place: Serra dos Aimors, Brazil Zip: Cep: 39868-000 Product: Ethanol distillery located in the state of Minas Gerais currently developing a project to...

  4. Coprodia | Open Energy Information

    Open Energy Info (EERE)

    Coprodia Place: Campo Novo dos Parecis, Mato Grosso, Brazil Sector: Biomass Product: Ethanol and biomass eletricity producer References: Coprodia1 This article is a stub. You...

  5. U-016: Cisco IOS Software HTTP Service Loading Denial of Service Vulnerability

    Broader source: Energy.gov [DOE]

    An unauthenticated, remote attacker could exploit this vulnerability to cause a targeted device to stop responding, resulting in a DoS condition

  6. Search for: All records | DOE PAGES

    Office of Scientific and Technical Information (OSTI)

    Density driven structural transformations in amorphous semiconductor clathrates Tulk, Christopher A ; dos Santos, Antonio M. ; Neuefeind, Joerg C ; Molaison, Jamie J ; Sales, Brian ...

  7. V-062: Asterisk Two Denial of Service Vulnerabilities

    Broader source: Energy.gov [DOE]

    Two vulnerabilities have been reported in Asterisk, which can be exploited by malicious users and malicious people to cause a DoS (Denial of Service).

  8. Innovative Nano-structuring Routes for Novel ThermoelectricMaterials...

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

    Nano-structuring Routes for Novel Thermoelectric Materials;Phonon Blocking & DOS Engineering Innovative Nano-structuring Routes for Novel Thermoelectric Materials;Phonon Blocking & ...

  9. United States Department of State | Open Energy Information

    Open Energy Info (EERE)

    of well-governed states that respond to the needs of their people, reduce widespread poverty, and act responsibly within the international system." References "DOS" Retrieved...

  10. U-201: HP System Management Homepage Bugs Let Remote Users Deny Service

    Broader source: Energy.gov [DOE]

    The vulnerabilities could be exploited remotely resulting in unauthorized access, disclosure of information, data modification, Denial of Service (DoS), and execution of arbitrary code.

  11. Two California Schools Win the 21st U.S. Department of Energy...

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

    ... Dos Pueblos High School from Goleta, California won the High School Science Bowl Civility Award for outstanding sportsmanship. Team members are Daniel Richman, Ilan Goodman, Daniel ...

  12. V-167: GnuTLS TLS Record Decoding Denial of Service Vulnerability

    Broader source: Energy.gov [DOE]

    A vulnerability has been reported in GnuTLS, which can be exploited by malicious people to cause a DoS (Denial of Service)

  13. U-274: HP Network Node Manager I (NNMi) for HP-UX, Linux, Solaris, and Windows, Remote Disclosure of Information

    Broader source: Energy.gov [DOE]

    Vulnerabilities can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.

  14. U-227: bind-dyndb-ldap DN Escaping Flaw Lets Remote Users Deny Service

    Broader source: Energy.gov [DOE]

    A vulnerability has been reported in bind-dyndb-ldap, which can be exploited by malicious people to cause a DoS (Denial of Service).

  15. V-107: Wireshark Multiple Denial of Service Vulnerabilities

    Broader source: Energy.gov [DOE]

    Multiple vulnerabilities have been reported in Wireshark, which can be exploited by malicious people to cause a DoS (Denial of Service).

  16. Usina Termoelectrica Winimport SA | Open Energy Information

    Open Energy Info (EERE)

    SA Jump to: navigation, search Name: Usina Termoelectrica Winimport SA Place: Sao Jose dos Pinhais, Parana, Brazil Sector: Biomass Product: Parana-based JV company between...

  17. U-273: Multiple vulnerabilities have been reported in Wireshark

    Broader source: Energy.gov [DOE]

    Vulnerabilities can be exploited by malicious people to cause a DoS (Denial of Service) and potentially compromise a vulnerable system.

  18. Electronic structure and vibrational entropies of fcc Au-Fe alloys

    SciTech Connect (OSTI)

    Munoz, Jorge A.; Lucas, Matthew; Mauger, L; Halevy, I; Horwath, J; Semiatin, S L; Xiao, Yuming; Stone, Matthew B; Abernathy, Douglas L; Fultz, B.

    2013-01-01

    Phonon density of states (DOS) curves were measured on alloys of face-centered-cubic (fcc) Au-Fe using nuclear resonant inelastic x-ray scattering (NRIXS) and inelastic neutron scattering (INS). The NRIXS and INS results were combined to obtain the total phonon DOS and the partial phonon DOS curves of Au and Fe atoms. The 57Fe partial phonon DOS of the dilute alloy Au0.97 57Fe0.03 shows a localized mode centered 4.3% above the cutoff energy of the phonons in pure Au. The Mannheim model for impurity modes accurately reproduced this partial phonon DOS using the fcc Au phonon DOS with a ratio of host-host to impurity-host force constants of 1.55. First-principles calculations validated the assumption of first-nearest-neighbor forces in the Mannheim model and gave a similar ratio of force constants. The high energy local mode broadens with increasing Fe composition, but this has a small effect on the composition dependence of the vibrational entropy. The main effect on the vibrational entropy of alloying comes from a stiffening of the Au partial phonon DOS with Fe concentration. This stiffening is attributed to two main effects: 1) an increase in electron density in the free-electron-like states, and 2) stronger sd-hybridization. These two effects are comparable in magnitude.

  19. OneTouch 4.0 Sanned Documents

    Office of Environmental Management (EM)

    Dos Razones Para Celebrar la Comunidad Hispana en Energía | Department of Energy One Month, Two Reasons to Celebrate the Hispanic Energy Community | Un Mes, Dos Razones Para Celebrar la Comunidad Hispana en Energía One Month, Two Reasons to Celebrate the Hispanic Energy Community | Un Mes, Dos Razones Para Celebrar la Comunidad Hispana en Energía October 17, 2014 - 1:03pm Addthis Students learn about the components of a computer at a STEM Fair hosted by the Latin American Youth Center

  20. U-045: Windows Win32k.sys Keyboard Layout Bug Lets Local Users...

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

    ID: SA46919 IMPACT ASSESSMENT: Low Discussion: A vulnerability has been discovered in Microsoft Windows, which can be exploited by malicious, local users to cause a DoS (Denial...

  1. Formation mechanical properties and the sonic log

    SciTech Connect (OSTI)

    Elphick, R.Y.

    1988-11-01

    A program is presented that calculates the mechanical properties of reservoir rocks from sonic logs. The program was written in Microsoft BASIC and the source code for MS-DOS, Apple Macintosh, and Amiga personal computers is given.

  2. T-561: IBM and Oracle Java Binary Floating-Point Number Conversion Denial of Service Vulnerability

    Broader source: Energy.gov [DOE]

    IBM and Oracle Java products contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on a targeted system.

  3. JC3 Bulletin Archive | Department of Energy

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

    a DoS (Denial of Service), and compromise a user's system. February 14, 2013 V-091: Adobe AcrobatReader Bug Lets Remote Users Execute Arbitrary Code Adobe has identified...

  4. T-661: ColdFusion Security Hotfix | APSB11-14, ColdFusion Important...

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

    could lead to a cross-site request forgery (CSRF) or a remote denial-of-service (DoS). Adobe recommends users update their product installation using the instructions provided...

  5. Search for: All records | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    ... For theory, this is due to inherent difficulties in properly describing many-body effects ... Using the projected density of states (DOS)more from state-of-the-art quasiparticle ...

  6. U-171: DeltaV Products Multiple Vulnerabilities

    Broader source: Energy.gov [DOE]

    Multiple vulnerabilities have been reported in DeltaV products, which can be exploited by malicious people to conduct cross-site scripting attacks, SQL injection attacks, cause a DoS (Denial of Service), and compromise a vulnerable system.

  7. V-007: McAfee Firewall Enterprise ISC BIND Record Handling Lockup Vulnerability

    Broader source: Energy.gov [DOE]

    McAfee has acknowledged a vulnerability in McAfee Firewall Enterprise, which can be exploited by malicious people to cause a DoS (Denial of Service).

  8. Silver Vanadates

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

    H. Peng, J. Im, A. Freeman, N. Perry, A. Zakutayev, P. Ndione, D. Ginley, J. Perkins, Chem. Mater. 24(17), 3346-3354 (2012). (Left) Calculated density of states (DOS)....

  9. V-092: Pidgin Multiple Vulnerabilities

    Broader source: Energy.gov [DOE]

    Multiple vulnerabilities have been reported in Pidgin, which can be exploited by malicious people to manipulate certain data, cause a DoS (Denial of Service), and compromise a user's system.

  10. Item Management Control System

    Energy Science and Technology Software Center (OSTI)

    1993-08-06

    The Item Management Control System (IMCS) has been developed at Idaho National Engineering Laboratory to assist in organizing collections of documents using an IBM-PC or similar DOS system platform.

  11. Best Practices - and Practices to Avoid

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

    Best Practices - and Practices to Avoid Best Practices - Dos and Don'ts on the cluster Please keep the following in mind when runningsubmitting jobs on Genepool: Use qstat...

  12. Coagro | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: Coagro Place: Campos dos Goytacazes, Rio de Janeiro, Brazil Zip: 85760-000 Product: Brazil based ethanol producer located in the state of Rio de...

  13. Photovoltaic Theory and Modeling - Energy Innovation Portal

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

    Photovoltaic Theory and Modeling Los Alamos National Laboratory Contact LANL About This Technology Effect of Ligands on semiconductor QD DOS (quantum chemistry calculations) Effect of Ligands on semiconductor QD DOS (quantum chemistry calculations) Technology Marketing SummaryThe scientists developing this capability welcome the opportunity to unite with industry and advance its potential.DescriptionAs the solar industry works to build the infrastructure necessary to make electricity from

  14. Baselines For Land-Use Change In The Tropics: Application ToAvoided Deforestation Projects

    SciTech Connect (OSTI)

    Brown, Sandra; Hall, Myrna; Andrasko, Ken; Ruiz, Fernando; Marzoli, Walter; Guerrero, Gabriela; Masera, Omar; Dushku, Aaron; Dejong,Ben; Cornell, Joseph

    2007-06-01

    Although forest conservation activities particularly in thetropics offer significant potential for mitigating carbon emissions,these types of activities have faced obstacles in the policy arena causedby the difficulty in determining key elements of the project cycle,particularly the baseline. A baseline for forest conservation has twomain components: the projected land-use change and the correspondingcarbon stocks in the applicable pools such as vegetation, detritus,products and soil, with land-use change being the most difficult toaddress analytically. In this paper we focus on developing and comparingthree models, ranging from relatively simple extrapolations of pasttrends in land use based on simple drivers such as population growth tomore complex extrapolations of past trends using spatially explicitmodels of land-use change driven by biophysical and socioeconomicfactors. The three models of the latter category used in the analysis atregional scale are The Forest Area Change (FAC) model, the Land Use andCarbon Sequestration (LUCS) model, and the Geographical Modeling (GEOMOD)model. The models were used to project deforestation in six tropicalregions that featured different ecological and socioeconomic conditions,population dynamics, and uses of the land: (1) northern Belize; (2) SantaCruz State, Bolivia; (3) Parana State in Brazil; (4) Campeche, Mexico;(5) Chiapas, Mexico; and (6) Michoacan, Mexico. A comparison of all modeloutputs across all six regions shows that each model produced quitedifferent deforestation baseline. In general, the simplest FAC model,applied at the national administrative-unit scale, projected the highestamount of forest loss (four out of six) and the LUCS model the leastamount of loss (four out of five). Based on simulations of GEOMOD, wefound that readily observable physical and biological factors as well asdistance to areas of past disturbance were each about twice as importantas either sociological/demographic or economic/infrastructure factors(less observable) in explaining empirical land-use patterns. We proposefrom the lessons learned, a methodology comprised of three main steps andsix tasks can be used to begin developing credible baselines. We alsopropose that the baselines be projected over a 10-year period because,although projections beyond 10 years are feasible, they are likely to beunrealistic for policy purposes. In the first step, an historic land-usechange and deforestation estimate is made by determining the analyticdomain (size of the region relative to the size of proposed project),obtaining historic data, analyzing candidate historic baseline drivers,and identifying three to four major drivers. In the second step, abaseline of where deforestation is likely to occur --a potential land-usechange (PLUC) map is produced using a spatial model such as GEOMOD thatuses the key drivers from step one. Then rates of deforestation areprojected over a 10-year baseline period using any of the three models.Using the PLUC maps, projected rates of deforestation, and carbon stockestimates, baselineprojections are developed that can be used for projectGHG accounting and crediting purposes: The final step proposes that, atagreed interval (eg, +10 years), the baseline assumptions about baselinedrivers be re-assessed. This step reviews the viability of the 10-yearbaseline in light of changes in one or more key baseline drivers (e.g.,new roads, new communities, new protected area, etc.). The potentialland-use change map and estimates of rates of deforestation could beredone at the agreed interval, allowing the rates and changes in spatialdrivers to be incorporated into a defense of the existing baseline, orderivation of a new baseline projection.

  15. Effect of substitutional defects on Kambersky damping in L1{sub 0} magnetic materials

    SciTech Connect (OSTI)

    Qu, T.; Victora, R. H.

    2015-02-16

    Kambersky damping, representing the loss of magnetic energy from the electrons to the lattice through the spin orbit interaction, is calculated for L1{sub 0} FePt, FePd, CoPt, and CoPd alloys versus chemical degree of order. When more substitutional defects exist in the alloys, damping is predicted to increase due to the increase of the spin-flip channels allowed by the broken symmetry. It is demonstrated that this corresponds to an enhanced density of states (DOS) at the Fermi level, owing to the rounding of the DOS with loss of long-range order. Both the damping and the DOS of the Co-based alloy are found to be less affected by the disorder. Pd-based alloys are predicted to have lower damping than Pt-based alloys, making them more suitable for high density spintronic applications.

  16. Study of the electronic and magnetic properties of EuAlO{sub 3} using FP-LAPW method

    SciTech Connect (OSTI)

    Sandeep, Shankar, A.; Rai, D. P.; Thapa, R. K.; Ghimire, M. P.

    2015-05-15

    The electronic and magnetic properties of EuAlO{sub 3} is calculated by first-principles full-potential linearized augmented plane wave (FP-LAPW) method based on density functional theory (DFT). Density of states (DOS), magnetic moments and band structures of the systems are presented. For the exchange and correlation energy, local spin density approximation (LSDA+U) with the inclusion of Hubbard potential U is used. Our calculation showed an indirect band gap of the order of 4 eV for EuAlO{sub 3} in the spin down channel of the DOS and band structures supporting HMF nature of the system. The effective magnetic moment of 6.00 µ{sub B} also supported the above conclusion with an integral value. The DOS of Eu were found responsible for the HMF nature of the system.

  17. Photonic-band-gap effects in two-dimensional polycrystalline and amorphous structures

    SciTech Connect (OSTI)

    Yang, Jin-Kyu; Noh, Heeso; Liew, Seng-Fatt; Schreck, Carl; Guy, Mikhael I.; O'Hern, Corey S.; Cao, Hui

    2010-11-15

    We study numerically the density of optical states (DOS) in two-dimensional photonic structures with short-range positional order and observe a transition from polycrystalline to amorphous photonic systems. In polycrystals, photonic band gaps (PBGs) are formed within individual domains, which leads to a depletion of the DOS similar to that in periodic structures. In amorphous photonic media, the domain sizes are too small to form PBGs, thus the depletion of the DOS is weakened significantly. The critical domain size that separates the polycrystalline and amorphous regimes is determined by the attenuation length of Bragg scattering, which depends not only on the degree of positional order but also the refractive-index contrast of the photonic material. Even with relatively low-refractive-index contrast, we find that modest short-range positional order in photonic structures enhances light confinement via collective scattering and interference.

  18. Multi Platform Graphics Subroutine Library

    Energy Science and Technology Software Center (OSTI)

    1992-02-21

    DIGLIB is a collection of general graphics subroutines. It was designed to be small, reasonably fast, device-independent, and compatible with DEC-supplied operating systems for VAXes, PDP-11s, and LSI-11s, and the DOS operating system for IBM PCs and IBM-compatible machines. The software is readily usable by casual programmers for two-dimensional plotting.

  19. Identification and In-vivo Characterization of a Novel OhrR Transcriptional Regulator in Burkholderia xenovorans LB400

    SciTech Connect (OSTI)

    Nguyen, Tinh T.; Mart-Arbona, Ricardo; Hall, Richard S.; Maity, Tuhin; Valdez, Yolanda E.; Dunbar, John M.; Unkefer, Clifford J.; Unkefer, Pat J.

    2013-05-21

    Transcriptional regulators (TRs) are an important and versatile group of proteins, yet very little progress has been achieved towards the discovery and annotation of their biological functions. We have characterized a previously unknown organic hydroperoxide resistance regulator from Burkholderia xenovoransLB400, Bxe_B2842, which is homologous to E. colis OhrR. Bxe_B2842 regulates the expression of an organic hydroperoxide resistance protein (OsmC). We utilized frontal affinity chromatography coupled with mass spectrometry (FAC-MS) and electrophoretic mobility gel shift assays (EMSA) to identify and characterize the possible effectors of the regulation by Bxe_B2842. Without an effector, Bxe_B2842 binds a DNA operator sequence (DOS) upstream of osmC. FAC-MS results suggest that 2-aminophenol binds to the protein and is potentially an effector molecule. EMSA analysis shows that 2-aminophenol also attenuates the Bxe_B2842s affinity for its DOS. EMSA analysis also shows that organic peroxides attenuate Bxe_B2842/DOS affinity, suggesting that binding of the TR to its DOS is regulated by the two-cysteine mechanism, common to TRs in this family. Bxe_B2842 is the first OhrR TR to have both oxidative and effector-binding mechanisms of regulation. Our paper reveals further mechanistic diversity TR mediated gene regulation and provides insights into methods for function discovery of TRs.

  20. Petrophysical corner - calculating water cut

    SciTech Connect (OSTI)

    Elphick, R.Y. )

    1990-02-01

    The problem of determining the amount of water cut that can be expected from a well is discussed in conjunction with a program for making this calculation. The program was written for Amiga, Apple Macintosh, and MS DOS personal computers and source code for the program is provided.

  1. Innovative Nano-structuring Routes for Novel Thermoelectric

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

    Materials;Phonon Blocking & DOS Engineering | Department of Energy Presents new concepts for high performance nanostructured bulk thermoelectric materials PDF icon lee.pdf More Documents & Publications Thermoelectric Materials for Automotive Applications The Bottom-Up Approach forThermoelectric Nanocomposites, plusƒ Glass-like thermal conductivity in high efficiency thermoelectric materials

  2. Breach, Leach, and Transport-Multiple Species GRID

    Energy Science and Technology Software Center (OSTI)

    2006-04-01

    BLTMS-GRID is a FORTRAN code developed to facilitate specifications of a finite-element grid for the Nuclear Regulatory Commission code called Breach, Leach, and Transport - Multiple Species (BLT-MS). BLTMS-GRID is an open-source code. It functions under a DOS window.

  3. Breach, Leach, and Transport-Multiple Species UNCERT

    Energy Science and Technology Software Center (OSTI)

    2006-04-01

    BLTPLOT_UNCERT is a FORTRAN code developed to facilitate plotting of 2-D concentration data for the Nuclear Regulatory Commission code called Breach, Leach, and Transport - Multiple Species (BLT-MS). BLTPLOT_UNCERT is open-source code. It functions under a DOS window.

  4. T-661: ColdFusion Security Hotfix | APSB11-14, ColdFusion Important Update

    Broader source: Energy.gov [DOE]

    Vulnerabilities have been identified in ColdFusion 9.0.1 and earlier versions for Windows, Macintosh and UNIX. These vulnerabilities could lead to a cross-site request forgery (CSRF) or a remote denial-of-service (DoS). Adobe recommends users update their product installation using the instructions provided below.

  5. U-179: IBM Java 7 Multiple Vulnerabilities

    Broader source: Energy.gov [DOE]

    Vulnerabilities can be exploited by malicious users to disclose certain information and by malicious people to disclose potentially sensitive information, hijack a user's session, conduct DNS cache poisoning attacks, manipulate certain data, cause a DoS (Denial of Service), and compromise a vulnerable system.

  6. Identification and In-vivo Characterization of a Novel OhrR Transcriptional Regulator in Burkholderia xenovorans LB400

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

    Nguyen, Tinh T.; Martí-Arbona, Ricardo; Hall, Richard S.; Maity, Tuhin; Valdez, Yolanda E.; Dunbar, John M.; Unkefer, Clifford J.; Unkefer, Pat J.

    2013-05-21

    Transcriptional regulators (TRs) are an important and versatile group of proteins, yet very little progress has been achieved towards the discovery and annotation of their biological functions. We have characterized a previously unknown organic hydroperoxide resistance regulator from Burkholderia xenovoransLB400, Bxe_B2842, which is homologous to E. coli’s OhrR. Bxe_B2842 regulates the expression of an organic hydroperoxide resistance protein (OsmC). We utilized frontal affinity chromatography coupled with mass spectrometry (FAC-MS) and electrophoretic mobility gel shift assays (EMSA) to identify and characterize the possible effectors of the regulation by Bxe_B2842. Without an effector, Bxe_B2842 binds a DNA operator sequence (DOS) upstream ofmore » osmC. FAC-MS results suggest that 2-aminophenol binds to the protein and is potentially an effector molecule. EMSA analysis shows that 2-aminophenol also attenuates the Bxe_B2842’s affinity for its DOS. EMSA analysis also shows that organic peroxides attenuate Bxe_B2842/DOS affinity, suggesting that binding of the TR to its DOS is regulated by the two-cysteine mechanism, common to TRs in this family. Bxe_B2842 is the first OhrR TR to have both oxidative and effector-binding mechanisms of regulation. Our paper reveals further mechanistic diversity TR mediated gene regulation and provides insights into methods for function discovery of TRs.« less

  7. Shedding Synchrotron Light on a Puzzle of Glasses

    ScienceCinema (OSTI)

    Chumakov, Aleksandr [European Synchrotron Radiation Facility, Grenoble, France

    2010-01-08

    Vibrational dynamics of glasses remains a point of controversial discussions. In particular, the density of vibrational states (DOS) reveals an excess of states above the Debye model called "boson peak." Despite the fact that this universal feature for all glasses has been known for more than 35 years, the nature of the boson peak is still not understood. The application of nuclear inelastic scattering via synchrotron radiation perhaps provides a clearer, more consistent picture of the subject. The distinguishing features of nuclear inelastic scattering relative to, e.g., neutron inelastic scattering, are ideal momentum integration and exact scaling of the DOS in absolute units. This allows for reliable comparison to data from other techniques such as Brillouin light scattering. Another strong point is ideal isotope selectivity: the DOS is measured for a single isotope with a specific low-energy nuclear transition. This allows for special "design" of an experiment to study, for instance, the dynamics of only center-of-mass motions. Recently, we have investigated the transformation of the DOS as a function of several key parameters such as temperature, cooling rate, and density. In all cases the transformation of the DOS is sufficiently well described by a transformation of the continuous medium, in particular, by changes of the macroscopic density and the sound velocity. These results suggest a collective sound-like nature of vibrational dynamics in glasses and cast doubts on microscopic models of glass dynamics. Further insight can be obtained in combined studies of glass with nuclear inelastic and inelastic neutron scattering. Applying two techniques, we have measured the energy dependence of the characteristic correlation length of atomic motions. The data do not reveal localization of atomic vibrations at the energy of the boson peak. Once again, the results suggest that special features of glass dynamics are related to extended motions and not to local models.

  8. Local density functional calculations of the electronic structures of the intermetallic systems U{sub 2}Fe{sub 2}Sn and UFe{sub 2}Ge{sub 2}

    SciTech Connect (OSTI)

    Matar, S.F.; Chevalier, B.; Etourneau, J.; Eyert, V.

    1997-02-05

    The electronic structures of U{sub 2}Fe{sub 2}Sn and UFe{sub 2}Ge{sub 2} are self-consistently calculated within the local density functional theory using the augmented spherical wave (ASW) method. Calculations are scalar relativistic. The experimentally observed Pauli paramagnetic behavior of the two systems is accounted for and the influence of hybridization between the different l-states on the chemical bonding is discussed from the site-projected densities of states (DOS) as well as from the modulation of the DOS by the sign and magnitude of the overlap integral, i.e., with the so-called COOP. From this, we propose a mechanism for the evolution of bonding within the series to which the two compounds belong. 12 refs., 3 figs.

  9. Inflection points of microcanonical entropy: Monte Carlo simulation of q state Potts model on a finite square lattice

    SciTech Connect (OSTI)

    Praveen, E. Satyanarayana, S. V. M.

    2014-04-24

    Traditional definition of phase transition involves an infinitely large system in thermodynamic limit. Finite systems such as biological proteins exhibit cooperative behavior similar to phase transitions. We employ recently discovered analysis of inflection points of microcanonical entropy to estimate the transition temperature of the phase transition in q state Potts model on a finite two dimensional square lattice for q=3 (second order) and q=8 (first order). The difference of energy density of states (DOS) ? ln g(E) = ln g(E+ ?E) ?ln g(E) exhibits a point of inflexion at a value corresponding to inverse transition temperature. This feature is common to systems exhibiting both first as well as second order transitions. While the difference of DOS registers a monotonic variation around the point of inflexion for systems exhibiting second order transition, it has an S-shape with a minimum and maximum around the point of inflexion for the case of first order transition.

  10. Super-Planckian far-zone thermal emission from asymmetric hyperbolic metamaterials

    SciTech Connect (OSTI)

    Nefedov, Igor S.; Melnikov, Leonid A.

    2014-10-20

    We demonstrate the production of strong directive thermal emissions in the far-field zone of asymmetric hyperbolic metamaterials (AHMs), exceeding that predicted by Planck's limit. Asymmetry is inherent to the uniaxial medium, where the optical axis is tilted with respect to medium interfaces. The use of AHMs is shown to enhance the free-space coupling efficiency of thermally radiated waves, resulting in Super-Planckian far-field thermal emission in certain directions. This effect is impossible in usual hyperbolic materials because emission of high density of states (DOS) photons into vacuum with smaller DOS is preserved by the total internal reflection. Different plasmonic metamaterials are proposed for realizing AHM media; the thermal emission from a AHM, based on a grapheme multilayer structure, is presented, as an example.

  11. Microsoft Word - 01_Final Draft PA.doc

    Energy Savers [EERE]

    DOS Final Draft 1 Keystone Project Programmatic Agreement January 2, 2008 FINAL DRAFT Programmatic Agreement Among The U.S. Department of State, U.S. Department of Agriculture, Natural Resources Conservation Service, U.S. Army Corps of Engineers, U.S. Department of Agriculture, Rural Utilities Service U.S. Department of Agriculture, Farm Service Agency U.S. Fish and Wildlife Service Advisory Council on Historic Preservation, The North Dakota State Historic Preservation Officer, The South Dakota

  12. U-197: Cisco Adaptive Security Appliances Denial of Service Vulnerability |

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

    Department of Energy 7: Cisco Adaptive Security Appliances Denial of Service Vulnerability U-197: Cisco Adaptive Security Appliances Denial of Service Vulnerability June 22, 2012 - 7:00am Addthis PROBLEM: A vulnerability has been reported in Cisco Adaptive Security Appliances (ASA), which can be exploited by malicious people to cause a DoS (Denial of Service). PLATFORM: Cisco Adaptive Security Appliance (ASA) 8.x Cisco ASA 5500 Series Adaptive Security Appliances ABSTRACT: The vulnerability

  13. U.S. Secretary of Energy in Portugal to Enhance Energy Security |

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

    Department of Energy in Portugal to Enhance Energy Security U.S. Secretary of Energy in Portugal to Enhance Energy Security May 26, 2008 - 11:59am Addthis U.S.-Portugal Sign Memorandum of Understanding to Increase Protection at Major Portuguese Port LISBON, PORTUGAL - U.S. Secretary of Energy Samuel W. Bodman, Portuguese Minister of Finance Fernando Teixeira dos Santos, and Portuguese Deputy Minister of Public Works, Transport, and Communications Paulo Campos today signed a memorandum of

  14. WIPP Field Practices: Common Errors and Innovative Solutions | Department

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

    of Energy WIPP Field Practices: Common Errors and Innovative Solutions WIPP Field Practices: Common Errors and Innovative Solutions What to do when approaching an unfamiliar house for weatherization, with hidden air leakage and a multitude of mysteries? This webinar focuses on the Dos and Don'ts of WIPP weatherization, and is guaranteed to be an hour well spent looking over photographs that show detail and perspective on air sealing, blocking, venting, and other weatherization measures. This

  15. Overseas Corps Training Manual | Department of Energy

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

    Overseas Corps Training Manual Overseas Corps Training Manual Purpose of Training Program under this Agreement The Department of Energy provides workforce resources to support the Department's mission and strategic plan objectives and requirements in overseas assignments. The individuals and their families carrying out these assignments need to be prepared to work with other Federal agencies, such as the Departments of State (DOS) and Defense (DOD), and with representatives of foreign

  16. V-232: Cisco ASA Software TFTP Protocol Inspection Denial of Service

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

    Vulnerability | Department of Energy 2: Cisco ASA Software TFTP Protocol Inspection Denial of Service Vulnerability V-232: Cisco ASA Software TFTP Protocol Inspection Denial of Service Vulnerability August 31, 2013 - 4:00am Addthis PROBLEM: A vulnerability has been reported in Cisco ASA Software, which can be exploited by malicious people to cause a DoS (Denial of Service). PLATFORM: Cisco Adaptive Security Appliance (ASA) 8.x, Cisco Adaptive Security Appliance (ASA) 9.x, Cisco ASA 5500-X

  17. Connecting your Apple to Octopus 7600's

    SciTech Connect (OSTI)

    Barton, G.W. Jr.

    1983-01-17

    In UCID-19588, Communicating between the Apple and the Wang, we described how to take Apple DOS text files and send them to the Wang, and how to return Wang files to the Apple. It is also possible to use your Apple as an Octopus terminal, and to exchange files with Octopus 7600's. Presumably, you can also talk to the Crays, or any other part of the system. This connection has another virtue. It eliminates one of the terminals in your office.

  18. Density driven structural transformations in amorphous semiconductor

    Office of Scientific and Technical Information (OSTI)

    clathrates (Journal Article) | SciTech Connect Density driven structural transformations in amorphous semiconductor clathrates Citation Details In-Document Search Title: Density driven structural transformations in amorphous semiconductor clathrates Authors: Tulk, C.A. ; dos Santos, A.M. ; Neuefeind, J.C. ; Molaison, J.J. ; Sales, B.C. ; Honkimäki, V. [1] ; ESRF) [2] + Show Author Affiliations (ORNL) ( Publication Date: 2015-09-22 OSTI Identifier: 1221429 Resource Type: Journal Article

  19. Early detection of chemotherapy-refractory patients by monitoring textural

    Office of Scientific and Technical Information (OSTI)

    alterations in diffuse optical spectroscopic images (Journal Article) | SciTech Connect Early detection of chemotherapy-refractory patients by monitoring textural alterations in diffuse optical spectroscopic images Citation Details In-Document Search Title: Early detection of chemotherapy-refractory patients by monitoring textural alterations in diffuse optical spectroscopic images Purpose: Changes in textural characteristics of diffuse optical spectroscopic (DOS) functional images,

  20. Accurate Band-Structure Calculations for the 3d Transition Metal Oxides

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

    has developed a method to calculate accurate band structures and bandgap energies for 3d transition metal oxides using an augmented GW formalism. Significance and Impact This approach provides a computationally viable route for high-throughput prediction of band structures and optical properties in transition metal compounds. Accurate Band-Structure Calculations for the 3d Transition Metal Oxides S. Lany, Phys. Rev. B 87, 085112 (2013). Density of states (DOS) and absorption spectrum, shown for

  1. EIS-0410: Keystone Oil Pipeline Project | Department of Energy

    Energy Savers [EERE]

    0: Keystone Oil Pipeline Project EIS-0410: Keystone Oil Pipeline Project SUMMARY This environmental impact statement (EIS) analyzes the environmental impacts of the TransCanada Keystone Oil Pipeline Project. The U.S. Department of State (DOS) was the lead agency. The U.S. Department of Energy's (DOE's) Western Power Administration (Western) participated as a cooperating agency in the preparation of this EIS in order to address Western's proposed response to interconnection requests from Minnkota

  2. Analysis of Energy Saving Impacts of ASHRAE 90.1-2004 for New York

    SciTech Connect (OSTI)

    Gowri, Krishnan; Halverson, Mark A.; Richman, Eric E.

    2007-08-03

    The New York State Energy Research and Development Authority (NYSERDA) and New York State Department of State (DOS) requested the help of DOEs Building Energy Codes Program (BECP) in estimating the annual building energy savings and cost impacts of adopting ANSI/ASHRAE/IESNA Standard 90.1-2004 (ASHRAE 2004) requirements. This report summarizes the analysis methodology and results of energy simulation in response to that request.

  3. Microsoft Word - DOE Overseas Corps Training Program _Final complete_.doc

    Energy Savers [EERE]

    DOE/NNSA Overseas Presence Advisory Board's Overseas Corps Training Program Agreement Purpose of Training Program under this Agreement The Department of Energy provides workforce resources to support the Department's mission and strategic plan objectives and requirements in overseas assignments. The individuals and their families carrying out these assignments need to be prepared to work with other Federal agencies, such as the Departments of State (DOS) and Defense (DOD), and with

  4. V-183: Cisco TelePresence TC and TE Bugs Let Remote Users Deny Service and Remote Adjacent Authenticated Users Gain Root Shell Access

    Broader source: Energy.gov [DOE]

    Cisco TelePresence TC and TE Software contain two vulnerabilities in the implementation of the Session Initiation Protocol (SIP) that could allow an unauthenticated remote attacker to cause a denial of service (DoS) condition. Additionally, Cisco TelePresence TC Software contain an adjacent root access vulnerability that could allow an attacker on the same physical or logical Layer-2 network as the affected system to gain an unauthenticated root shell.

  5. Enhancing the Figure-of-Merit in Half-Heuslers for Vehicle Waste Heat

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

    Recovery | Department of Energy Good ZT can occur in non-traditional TE material structure. Ordered layer for charger carrier and disordered layer for phonon scattering is probably a good way to get high ZT. PDF icon ren.pdf More Documents & Publications Innovative Nano-structuring Routes for Novel Thermoelectric Materials;Phonon Blocking & DOS Engineering Novel Nanostructured Interface Solution for Automotive Thermoelectric Modules Application Thermoelectrics Partnership: Automotive

  6. Structure of V{sub 2}AlC studied by theory and experiment

    SciTech Connect (OSTI)

    Schneider, Jochen M.; Mertens, Raphael; Music, Denis

    2006-01-01

    We have studied V{sub 2}AlC (space group P6{sub 3}/mmc, prototype Cr{sub 2}AlC) by ab initio calculations. The density of states (DOS) of V{sub 2}AlC for antiferromagnetic, ferromagnetic, and paramagnetic configurations have been discussed. According to the analysis of DOS and cohesive energy, no significant stability differences between spin-polarized and non-spin-polarized configurations were found. Based on the partial DOS analysis, V{sub 2}AlC can be classified as a strongly coupled nanolaminate according to our previous work [Z. Sun, D. Music, R. Ahuja, S. Li, and J. M. Schneider, Phys. Rev. B 70, 092102 (2004)]. Furthermore, this phase has been synthesized in the form of thin films by magnetron sputtering. The equilibrium volume, determined by x-ray diffraction, is in good agreement with the theoretical data, implying that ab initio calculations provide an accurate description of V{sub 2}AlC.

  7. A comparative DFT study of the catalytic activity of the 3d transition metal sulphides surfaces

    SciTech Connect (OSTI)

    Gomez-Balderas, R.; Oviedo-Roa, R; Martinez-Magadan, J M.; Amador, C.; Dixon, David A. )

    2002-10-10

    The catalytic activity of the first transition metal series sulphides for hydrodesulfurization (HDS) reactions exhibits a particular behaviour when analysed as a function of the metal position in the Periodic Table. This work reports a comparative study of the electronic structure of the bulk and of the (0 0 1) metal surface (assumed to be the reactive surface) for the Sc-Zn monosulphides. The systems were modeled using the NiAs prototype crystal structure for the bulk and by applying the supercell model with seven atomic layers for (0 0 1) surfaces. The electronic structure of closed-packed solids code based on the density-functional theory and adopting the muffin-tin approximation to the potential was employed in the calculations of the electronic properties. For the Co and Ni sulphides, the density of states (DOS) variations between the metal atom present in the bulk and the ones exposed at the surface show that at the surface, there exists a higher DOS in the occupied states region just below the Fermi level. This feature might indicate a good performance of these two metal sulphides substrates in the HDS reactions favouring a donation, back-donation mechanism. In contrast, the DOS at the surface of Mn is increased in the unoccupied states region, just above the Fermi level. This suggests the possibility of a strong interaction with charge dontating sulphur adsorbate atoms poisoning the active substrate surface.

  8. Computer virus information update CIAC-2301

    SciTech Connect (OSTI)

    Orvis, W.J.

    1994-01-15

    While CIAC periodically issues bulletins about specific computer viruses, these bulletins do not cover all the computer viruses that affect desktop computers. The purpose of this document is to identify most of the known viruses for the MS-DOS and Macintosh platforms and give an overview of the effects of each virus. The authors also include information on some windows, Atari, and Amiga viruses. This document is revised periodically as new virus information becomes available. This document replaces all earlier versions of the CIAC Computer virus Information Update. The date on the front cover indicates date on which the information in this document was extracted from CIAC`s Virus database.

  9. Photonic band gaps in three-dimensional network structures with short-range order

    SciTech Connect (OSTI)

    Liew, Seng Fatt; Noh, Heeso; Yang, Jin-Kyu; Schreck, Carl F.; Dufresne, Eric R.; O'Hern, Corey S.; Cao, Hui

    2011-12-15

    We present a systematic study of photonic band gaps (PBGs) in three-dimensional (3D) photonic amorphous structures (PASs) with short-range order. From calculations of the density of optical states (DOS) for PASs with different topologies, we find that tetrahedrally connected dielectric networks produce the largest isotropic PBGs. Local uniformity and tetrahedral order are essential to the formation of PBGs in PASs, in addition to short-range geometric order. This work demonstrates that it is possible to create broad, isotropic PBGs for vector light fields in 3D PASs without long-range order.

  10. WIPP, Carlsbad Host Department of State Conference | Department of Energy

    Energy Savers [EERE]

    WIPP, Carlsbad Host Department of State Conference WIPP, Carlsbad Host Department of State Conference August 30, 2011 - 12:00pm Addthis Media Contact Deb Gill www.wipp.energy.gov 575-234-7270 CARLSBAD, N.M. - The United States Departments of State (DOS) and Energy (DOE) recently met with a delegation from the Argentina government for the 8th meeting of the U.S./Argentina Joint Standing Committee on Nuclear Energy Cooperation (JSCNEC). Argentina has a small but rapidly developing nuclear

  11. Global change: Acronyms and abbreviations

    SciTech Connect (OSTI)

    Woodard, C.T.; Stoss, F.W.

    1995-05-01

    This list of acronyms and abbreviations is compiled to provide the user with a ready reference to dicipher the linguistic initialisms and abridgements for the study of global change. The terms included in this first edition were selected from a wide variety of sources: technical reports, policy documents, global change program announcements, newsletters, and other periodicals. The disciplinary interests covered by this document include agriculture, atmospheric science, ecology, environmental science, oceanography, policy science, and other fields. In addition to its availability in hard copy, the list of acronyms and abbreviations is available in DOS-formatted diskettes and through CDIAC`s anonymous File Transfer Protocol (FTP) area on the Internet.

  12. V-233: Red Hat update for JBoss Fuse | Department of Energy

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

    3: Red Hat update for JBoss Fuse V-233: Red Hat update for JBoss Fuse September 3, 2013 - 6:00am Addthis PROBLEM: Red Hat has issued an update for JBoss Fuse PLATFORM: Red Hat JBoss Fuse 6.x ABSTRACT: This fixes multiple vulnerabilities, which can be exploited by malicious people to bypass certain security restrictions and cause a DoS. REFERENCE LINKS: Secunia Advisory SA54683 Redhat Advisory RHSA-2013:1185-1 CVE-2013-0269 CVE-2013-1768 CVE-2013-1821 CVE-2013-2160 IMPACT ASSESSMENT: Medium

  13. Tuning electron-electron correlation in noncentrosymmetric superconductor BiPd

    SciTech Connect (OSTI)

    Joshi, Bhanu Thamizhavel, A. Ramakrishnan, S.

    2014-04-24

    In this work, we have successfully tuned the electron-electron correlation in new noncentrosymmertic superconductor (NCS) BiPd via Pb substitution on one of the inequivalent Bi sites present in BiPd and simultaneously keeping the parent noncentrosymmetric crystal structure intact. Heat capacity data is suggesting a fourfold increase in density of states at Fermi level via Pb substitution while superconducting transition temperature has been suppressed. This work will clearly open up a rare chance to study the effect of electron–electron correlation via selective tuning of DOS at Fermi level in NCS.

  14. 06-14-2010 NNSA-B-10-0269

    National Nuclear Security Administration (NNSA)

    14-2010 NNSA-B-10-0269 Sandia National Laboratories/New Mexico (SNL/NM), as part of a U.S. Department of Energy (DOE) effort to engage Libyan and American scientists in a scientific exchange, proposes to purchase a pilot plant for seawater desalination. The U.S. Department of State (DOS) would supply the money for this purchase, and DOE would supply project support for SNL labor. This activity would provide a background for choosing the optimal desalination techniques for application to Libyan

  15. Pressure-Induced Structural Phase Transition in CeNi: X-ray and Neutron

    Office of Scientific and Technical Information (OSTI)

    Scattering Studies and First-Principles Calculations (Journal Article) | SciTech Connect Pressure-Induced Structural Phase Transition in CeNi: X-ray and Neutron Scattering Studies and First-Principles Calculations Citation Details In-Document Search Title: Pressure-Induced Structural Phase Transition in CeNi: X-ray and Neutron Scattering Studies and First-Principles Calculations Authors: Mirmelstein, A ; Podlesnyak, A ; dos Santos, A M ; Ehlers, G ; Kerbel, O ; Matvienko, V ; Sefat, A S ;

  16. Microsoft Word - Rad_Hard_Assurance_Fact_Sheet_SAND2011-0937P_updated_format.docx

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

    Rad Radiatio Rad-Har systems hardenin Radiat Gamma The Rad includin of Sandi the phys semicon the parts low-dos radiation X-ray R The Rad Sandia a irradiato especiall one of th tube is lo irradiatio wafer-le technolo Sandia's that have Figure 2 Gamma diation on Hardening rd electronic or in close p ng provides a tion Phys a Ray Radi diation Physi ng two 60 Co s ia and comm sical mechan nductor devic s to be tested e-rate irradia n sources sho Radiation S diation Physi also maintain ors use X-ray

  17. Longer life for glyco-based stationary engine coolants

    SciTech Connect (OSTI)

    Hohlfeld, R.

    1996-07-01

    Large, stationary diesel engines used to compress natural gas that is to be transported down pipelines generate a great deal of heat. Unless this heat is dissipated efficiently, it will eventually cause an expensive breakdown. Whether the coolant uses ethylene glycol or propylene glycol, the two major causes of glycol degradation are heat and oxidation. The paper discusses inhibitors that enhance coolant service life and presents a comprehensive list of do`s and don`ts for users to gain a 20-year coolant life.

  18. Early Site Permit Demonstration Program: Nuclear Power Plant Siting Database

    Energy Science and Technology Software Center (OSTI)

    1994-01-28

    This database is a repository of comprehensive licensing and technical reviews of siting regulatory processes and acceptance criteria for advanced light water reactor (ALWR) nuclear power plants. The program is designed to be used by applicants for an early site permit or combined construction permit/operating license (10CFRR522, Subparts A and C) as input for the development of the application. The database is a complete, menu-driven, self-contained package that can search and sort the supplied datamore » by topic, keyword, or other input. The software is designed for operation on IBM compatible computers with DOS.« less

  19. Predicting susceptibility of alloy 600 to intergranular stress corrosion cracking using a modified electrochemical potentiokinetic reactivation test

    SciTech Connect (OSTI)

    Ahn, M.K.; Kwon, H.S.; Lee, J.H.

    1995-06-01

    Modified double-loop electrochemical potentiokinetic reactivation (DL-EPR) tests were applied to evaluate the degree of sensitization (DOS) for alloy 600 aged at 700 C. Results of the modified DL-EPR test were compared to intergranular stress corrosion cracking (IGSCC) susceptibilities determined in deaerated 0.01 M sodium tetrathionate under deformation at a constant strain rate of 0.93 {times} 10{sup {minus}6}/s. By analyzing the effects of solution concentration, temperature, and scan rate on the electrochemical response in the EPR tests and the morphologies, the optimal modified DL-EPR test condition for alloy 600 was obtained in 0.01 M sulfuric acid + 10 ppm potassium thiocyanate at 25 C and at a scan rate of 0.5 mV/s. The standard DL-EPR test, performed under conditions of 0.5 M H{sub 2}SO{sub 4} + 0.01 M KCNS at 30 C and a scan rate of 1.67 mV/s, provided very poor discriminating power for various DOS of alloy 600 because general and pitting corrosion occurred, in addition to intergranular corrosion. The modified test, however, was highly discriminating because of its highly selective corrosion attack at grain boundaries. IGSCC occurred in samples of alloy 600 aged for < 20 h, and susceptibility to IGSCC{sub s} increased with decreasing aging times up to 1 h, showing maximum IGSCC{sub s} in the sample aged for 1 h. IGSCC{sub s} for the alloy was found to be associated closely with the chromium-depleted profile across grain boundaries. The deeper and narrower chromium-depleted zone produced greater IGSCC{sub s}. It was demonstrated that DOS measured by the modified DL-EPR test was correlated more closely with IGSCC{sub s} than was DOS measured by the standard EPR test. This correlation resulted from the fact that the modified EPR test selectively attacked the more deeply chromium-depleted regions in comparison to the standard EPR test.

  20. WM_and_Chemical_2012.pdf

    Office of Environmental Management (EM)

    WIPP, Carlsbad Host Department of State Conference WIPP, Carlsbad Host Department of State Conference August 30, 2011 - 12:00pm Addthis Media Contact Deb Gill www.wipp.energy.gov 575-234-7270 CARLSBAD, N.M. - The United States Departments of State (DOS) and Energy (DOE) recently met with a delegation from the Argentina government for the 8th meeting of the U.S./Argentina Joint Standing Committee on Nuclear Energy Cooperation (JSCNEC). Argentina has a small but rapidly developing nuclear

  1. Pressurized release of liquefied fuel gases (LNG and LPG). Topical report, May 1993-February 1996

    SciTech Connect (OSTI)

    Atallah, S.; Janardhan, A.

    1996-02-01

    This report is an important contribution to the behavior of pressurized liquefied gases when accidentally released into the atmosphere. LNG vehicle fueling stations and LPG storage facilities operate at elevated pressures. Accidental releases could result in rainout and the formation of an aerosol in the vapor cloud. These factors must be considered when estimating the extent of the hazard zone of the vapor cloud using a heavier-than-air gas dispersion model such as DEGADIS (or its Windows equivalent DEGATEC). The DOS program PREL has been incorporated in the Windows program LFGRISK.

  2. T-550: Apache Denial of Service Vulnerability

    Office of Energy Efficiency and Renewable Energy (EERE)

    Apache 'APR-util' is prone to a vulnerability that may allow attackers to cause a denial-of-service condition. Memory leak in the apr_brigade_split_line function in buckets/apr_brigade.c in the Apache Portable Runtime Utility library (aka APR-util) before 1.3.10, as used in the mod_reqtimeout module in the Apache HTTP Server and other software, may allow remote users to cause a Denial of Service (DoS - memory consumption).

  3. T-668: Vulnerability in a BlackBerry Enterprise Server component could allow information disclosure and partial denial of service

    Broader source: Energy.gov [DOE]

    This advisory describes a security issue in the BlackBerry Administration API component. Successful exploitation of the vulnerability could result in information disclosure and partial denial of service (DoS). The BlackBerry Administration API is a BlackBerry Enterprise Server component that is installed on the server that hosts the BlackBerry Administration Service. The BlackBerry Administration API contains multiple web services that receive API requests from client applications. The BlackBerry Administration API then translates requests into a format that the BlackBerry Administration Service can process.

  4. The IAEA neutron coincidence counting (INCC) and the DEMING least-squares fitting programs

    SciTech Connect (OSTI)

    Krick, M.S.; Harker, W.C.; Rinard, P.M.; Wenz, T.R.; Lewis, W.; Pham, P.; Ridder, P. de

    1998-12-01

    Two computer programs are described: (1) the INCC (IAEA or International Neutron Coincidence Counting) program and (2) the DEMING curve-fitting program. The INCC program is an IAEA version of the Los Alamos NCC (Neutron Coincidence Counting) code. The DEMING program is an upgrade of earlier Windows{reg_sign} and DOS codes with the same name. The versions described are INCC 3.00 and DEMING 1.11. The INCC and DEMING codes provide inspectors with the software support needed to perform calibration and verification measurements with all of the neutron coincidence counting systems used in IAEA inspections for the nondestructive assay of plutonium and uranium.

  5. The structural, electronic and dynamic properties of the L1{sub 2}- type Co{sub 3}Ti alloy

    SciTech Connect (OSTI)

    Arikan, Nihat; zduran, Mustafa

    2014-10-06

    The structural, electronic and dynamic properties of the cubic Co{sub 3}Ti alloy in L1{sub 2} structure have been investigated using a pseudopotential plane wave (PP-PW) method within the generalized gradient approximation proposed by PerdewBurkeErnzerhof (GGA-PBE). The structural properties, including the lattice constant, the bulk modulus and its pressure derivative agree reasonably with the previous results. The density of state (DOS), projected density of state (PDOS) and electronic band structure are also reported. The DOS shows that Co{sub 3}Ti alloy has a metallic character since the energy bands cross the Fermi level. The density of states at Fermi level mainly comes from the Co-3d states. Phonon dispersion curves and their corresponding total densities of states were obtained using a linear response in the framework of the density functional perturbation theory. All computed phonon frequencies are no imaginer and thus, Co{sub 3}Ti alloy is dynamically stable. The zone center phonon modes have been founded to be 9.307, 9.626 and 13.891 THz for Co{sub 3}Ti.

  6. Josephson scanning tunneling microscopy -- a local and direct probe of the superconducting order parameter

    SciTech Connect (OSTI)

    Kimura, Hikari; Dynes, Robert; Barber Jr., Richard. P.; Ono, S.; Ando, Y.

    2009-09-01

    Direct measurements of the superconducting superfluid on the surface of vacuum-cleaved Bi2Sr2CaCu2O8+delta (BSCCO) samples are reported. These measurements are accomplished via Josephson tunneling into the sample using a novel scanning tunneling microscope (STM) equipped with a superconducting tip. The spatial resolution of the STM of lateral distances less than the superconducting coherence length allows it to reveal local inhomogeneities in the pair wavefunction of the BSCCO. Instrument performance is demonstrated first with Josephson measurements of Pb films followed by the layered superconductor NbSe2. The relevant measurement parameter, the Josephson ICRN product, is discussed within the context of both BCS superconductors and the high transition temperature superconductors. The local relationship between the ICRN product and the quasiparticle density of states (DOS) gap are presented within the context of phase diagrams for BSCCO. Excessive current densities can be produced with these measurements and have been found to alter the local DOS in the BSCCO. Systematic studies of this effect were performed to determine the practical measurement limits for these experiments. Alternative methods for preparation of the BSCCO surface are also discussed.

  7. Effect of mechanical strain on electronic properties of bulk MoS{sub 2}

    SciTech Connect (OSTI)

    Kumar, Sandeep Kumar, Jagdish Sastri, O. S. K. S.

    2015-05-15

    Ab-initio density functional theory based calculations of electronic properties of bulk and monolayer Molybdenum di-Sulfide (MoS{sub 2}) have been performed using all electron Full Potential Linearised Augmentad Plane Wave (FPLAPW) method using Elk code. We have used Generalised Gradient Approximation (GGA) for exchange and correlation functionals and performed calculaitons of Lattice parameters, Density Of States (DOS) and Band Structure (BS). Band structure calculations revealed that bulk MoS{sub 2} has indirect band gap of 0.97 eV and mono-layer MoS{sub 2} has direct band gap which has increased to 1.71 eV. These are in better agreement with experimental values as compared with the other calculations using pseudo-potential code. The effect of mechanical strain on the electronic properties of bulk MoS{sub 2} has also been studied. For the different values of compressive strain (varying from 2% to 8% in steps of 2%) along the c-axis, the corresponding DOS and BS are obtained. We observed that the band gap decreases by about 15% for every 2% increase in strain along the c-axis.

  8. Crystallographic, magnetic, and electronic structures of ferromagnetic shape memory alloys Ni{sub 2}XGa (X=Mn,Fe,Co) from first-principles calculations

    SciTech Connect (OSTI)

    Bai, J.; Raulot, J. M.; Zhang, Y. D.; Esling, C.; Zhao, X.; Zuo, L.

    2011-01-01

    The crystallographic, magnetic and electronic structures of the ferromagnetic shape memory alloys Ni{sub 2}XGa (X=Mn, Fe, and Co), are systematically investigated by means of the first-principles calculations within the framework of density functional theory using the VIENNA AB INITIO SOFTWARE PACKAGE. The lattice parameters of both austenitic and martensitic phases in Ni{sub 2}MnGa have been calculated. The formation energies of the cubic phase of Ni{sub 2}XGa are estimated, and show a destabilization tendency if Mn atom is substituted by Fe or Co. From Ni{sub 2}MnGa to Ni{sub 2}CoGa, the down spin total density of states (DOS) at Fermi level is gradually increasing, whereas that of the up spin part remains almost unchanged. This is the main origin of the difference of the magnetic moment in these alloys. The partial DOS is dominated by the Ni and Mn 3d states in the bonding region below E{sub F}. There are two bond types existing in Ni{sub 2}XGa: one is between neighboring Ni atoms in Ni{sub 2}MnGa; the other is between Ni and X atoms in Ni{sub 2}FeGa and Ni{sub 2}CoGa alloys.

  9. Energy and Power Evaluation Program for Windows

    Energy Science and Technology Software Center (OSTI)

    2000-06-27

    ENPEP for windows has its origins in the DOS version of the software, however, the Windows release is significantly modified and rather different in structure and capabilities from the older DOS version of ENPEP. ENPEP for Windows provides the user with a graphical interface for designing a comprehensive model of the energy system of a country or region. The BALANCE submodel processes a representative network of all energy production, conversion, transport, distribution, and utilization activitiesmore » in a country (or region) as well as the flows of energy and fuels among these activities. The objective of the model is to simulate energy market and determine energy supply and demand balance over a long-term period of up to 75 years. The environmental aspect is also taken into account by calculating the emissions of various pollutants. In addition to the energy costs, the environmental costs are also calculated by the model. These costs can be used to affect the solution found by the market equilibrium algorithm. The main purpose of the software is to provide analytical capability and tools for the various analyses of energy and environmental systems, as well as for development of long-term energy strategy of a country or region.« less

  10. Evolution of electronic states in the Kondo alloy system Yb{sub 1{minus}x}Lu{sub x}B{sub 12}

    SciTech Connect (OSTI)

    Susaki, T.; Konishi, T.; Sekiyama, A.; Mizokawa, T.; Fujimori, A.; Iwasaki, T.; Ueda, S.; Matsushita, T.; Suga, S.; Ishii, H.; Iga, F.; Kasaya, M.

    1997-12-01

    We have studied the effect of Lu substitution on the Kondo insulator YbB{sub 12} by high-resolution photoemission. Comparison of the spectra of YbB{sub 12}, Yb{sub 0.5}Lu{sub 0.5}B{sub 12}, and LuB{sub 12} reveals that the density of states (DOS) of the B sp-derived conduction band near the Fermi level is reduced in YbB{sub 12} over a rather wide ({approximately} 40 meV) energy region. Lu substitution (i) recovers the reduced B sp DOS, (ii) shifts the Yb 4f-derived Kondo peak towards higher binding energy, and (iii) decreases the Yb valence. These results are consistently analyzed using the Anderson-impurity model, and imply interaction between the Yb 4f ions mediated by the Yb 4f-B sp hybridization in YbB{sub 12}. {copyright} {ital 1997} {ital The American Physical Society}

  11. Electrical and optical properties of Mn-doped Hg{sub 3}In{sub 2}Te{sub 6} crystals

    SciTech Connect (OSTI)

    Grushka, O. G. Chupyra, S. M.; Mysliuk, O. M.; Bilichuk, S. V.; Koziarskyi, D. P.

    2013-09-15

    The effect of Mn impurities on the properties of Hg{sub 3}In{sub 2}Te{sub 6} crystals is studied by electrical and optical measurements. It is shown that, despite the high dopant concentration (1 Multiplication-Sign 10{sup 19} cm{sup -3}), the electron concentration remains the same as that in an undoped crystal ({approx}10{sup 13} cm{sup -3} at 300 K). At the same time, narrowing of the band gap from 0.74 to 0.7 eV is observed. From an analysis of the absorption spectra, it is found that the absorption edge is formed by optical transitions involving density-of-states (DoS) tails and that two acceptor- and donor-type impurity bands are formed in the band gap. The two bands are described by a Gaussian distribution of the DoS, with an energy gap between the peaks of E{sub 0} = E{sub d}{sup 0} - E{sub a}{sup 0} = 0.4 eV. The total donor and acceptor concentration N{sub d} + N{sub a} and the degree of compensation K = N{sub a}/N{sub d} {yields} 1 are determined. Such compensation is responsible for pinning of the Fermi level near the middle of the band gap and for quasi-intrinsic conductivity at temperatures T {>=} 300 K.

  12. Metallicity of Ca2Cu6P5 with single and double copper-pnictide layers

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

    Li, Li; Parker, David; Chi, Miaofang; Tsoi, Georgiy M.; Vohra, Yogesh K.; Sefat, Athena S.

    2016-02-16

    Here, we report thermodynamic and transport properties, and also theoretical calculations, for Cu-based compound Ca2Cu6P5 and compare with CaCu2-dP2. Both materials have layers of edge-sharing copper pnictide tetrahedral CuP4, similar to Fe–As and Fe–Se layers (with FeAs4, FeSe4) in the iron-based superconductors. Despite the presence of this similar transition-metal pnictide layer, we find that both Ca2Cu6P5 and CaCu2-δP2 have temperature-independent magnetic susceptibility and show metallic behavior with no evidence of either magnetic ordering or superconductivity down to 1.8 K CaCu2-δP2 is slightly off-stoichiometric, with δ = 0.14. Theoretical calculations suggest that unlike Fe 3d-based magnetic materials with a large densitymore » of states (DOS) at the Fermi surface, Cu have comparatively low DOS, with the majority of the 3d spectral weight located well below Fermi level. The room-temperature resistivity value of Ca2Cu6P5 is only 9 μΩ-cm, due to a substantial plasma frequency and an inferred electron-phonon coupling λ of 0.073 (significantly smaller than that of metallic Cu). Also, microscopy result shows that Cu–Cu distance along the c-axis within the double layers can be very short (2.5 Å), even shorter than metallic elemental copper bond (2.56 Å). The value of dρ/dT for CaCu2-δP2 at 300 K is approximately three times larger than in Ca2Cu6P5, which suggests the likelihood of stronger electron-phonon coupling. This study shows that the details of Cu-P layers and bonding are important for their transport characteristics. In addition, it emphasizes the remarkable character of the DOS of ‘122’ iron-based materials, despite much structural similarities.« less

  13. Density functional calculation of the structural and electronic properties of germanium quantum dots

    SciTech Connect (OSTI)

    Anas, M. M.; Gopir, G.

    2015-04-24

    We apply first principles density functional computational methods to study the structures, densities of states (DOS), and higher occupied molecular orbital (HOMO) lowest unoccupied molecular orbital (LUMO) gaps of selected free-standing Ge semiconductor quantum dots up to 1.8nm. Our calculations are performed using numerical atomic orbital approach where linear combination of atomic orbital was applied. The surfaces of the quantum dots was passivized by hydrogen atoms. We find that surface passivation does affect the electronic properties associated with the changes of surface state, electron localization, and the energy gaps of germanium nanocrystals as well as the confinement of electrons inside the quantum dots (QDs). Our study shows that the energy gaps of germanium quantum dots decreases with the increasing dot diameter. The size-dependent variations of the computed HOMO-LUMO gaps in our quantum dots model were found to be consistent with the effects of quantum confinement reported in others theoretical and experimental calculation.

  14. Ab initio study of structural stability and electronic properties of Ti{sub 1-x}Mg{sub x}Cr{sub 2} and TiMg{sub x}Cr{sub 2-x} laves phase

    SciTech Connect (OSTI)

    Sari, A. Merad, G.

    2015-03-30

    The structural stability and electronic properties of TiMgCr{sub 2} laves phase have been calculated and compared. It is found that Mg prefer to substitutes titanium than chromium. The values of entalpies of formation show that Ti{sub 1-x}Mg{sub x}Cr{sub 2} may exist for only one concentration x=0.125 and the more favorable alloy is Ti{sub 0.875}Mg{sub 0.125}Cr{sub 2}. For TiCr{sub 2}, the optimized structural parameters were in good agreement with experimental values, while for TiMgCr{sub 2}, there is not experimental data. The electronic densities of states (DOS) are given and the nature of bonds are also discussed.

  15. Tritium Migration Analysis Program Version 4

    Energy Science and Technology Software Center (OSTI)

    1991-06-12

    TMAP4 was developed as a safety analysis code, mainly to analyze tritium retention and loss in fusion reactor structures and systems during normal operational and accident conditions. It incorporates one-dimensional thermal and mass-diffusive transport and trapping calculations through structures and zero dimensional fluid transport between enclosures and across the interface between enclosures and structures. Diffusion structures may be linked together with other structures, and multiple structures may interact with an enclosure. A key feature ismore » the ability to input problem definition parameters as constants, interpolation tables, or FORTRAN equations. The code is specifically intended for use under a DOS operating system on PC type minicomputers, but it has also been run successfully on workstations and mainframe computer systems. Use of the equation-input feature requires access to a FORTRAN-77 compiler, and a linker program is required.« less

  16. U-138: Cisco IOS IPSec IKE Unspecified Denial of Service Vulnerability |

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

    Department of Energy 38: Cisco IOS IPSec IKE Unspecified Denial of Service Vulnerability U-138: Cisco IOS IPSec IKE Unspecified Denial of Service Vulnerability April 2, 2012 - 7:00am Addthis PROBLEM: A vulnerability has been reported in Cisco IOS, which can be exploited by malicious people to cause a DoS (Denial of Service). PLATFORM: Cisco IOS XE 2.1.x Cisco IOS XE 2.2.x Cisco IOS XE 2.3.x Cisco IOS XE 2.4.x Cisco IOS XE 2.5.x Cisco IOS XE 2.6.x Cisco IOS XE 3.1.x Cisco IOS XE 3.3.x

  17. T-663: Cisco Content Services Gateway ICMP Processing Flaw Lets Remote Users Deny Service

    Broader source: Energy.gov [DOE]

    The Cisco Content Services Gateway: Second Generation provides intelligent network capabilities such as flexible policy management and billing based on deep-packet inspection, as well as subscriber and application awareness capabilities that enable mobile operators to quickly and easily offer value-added, differentiated services over their mobile data networks. A DoS vulnerability exists in the Cisco Content Services Gateway: Second Generation could allow an unauthenticated attacker to cause a device reload by sending crafted ICMP messages to the affected device. Note: The Cisco Gateway GPRS Support Node (GGSN), the Cisco Mobile Wireless Home Agent (HA), the Cisco Wireless Security Gateway (WSG), the Cisco Broadband Wireless Gateway and Cisco IP Transfer Point (ITP), and the Cisco Long Term Evolution (LTE) Gateway are not affected. This vulnerability is documented in Cisco bug ID CSCtl79577 ( registered customers only) and has been assigned CVE ID CVE-2011-2064.

  18. Switching behaviors of graphene-boron nitride nanotube heterojunctions

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

    Parashar, Vyom; Durand, Corentin P.; Hao, Boyi; Amorim, Rodrigo G.; Pandey, Ravindra; Tiwari, Bishnu; Zhang, Dongyan; Liu, Yang; Li, An -Ping; Yap, Yoke Khin

    2015-07-20

    High electron mobility of graphene has enabled their application in high-frequency analogue devices but their gapless nature has hindered their use in digital switches. In contrast, the structural analogous, h-BN sheets and BN nanotubes (BNNTs) are wide band gap insulators. Here we show that the growth of electrically insulating BNNTs on graphene can enable the use of graphene as effective digital switches. These graphene-BNNT heterojunctions were characterized at room temperature by four-probe scanning tunneling microscopy (4-probe STM) under real-time monitoring of scanning electron microscopy (SEM). A switching ratio as high as 105 at a turn-on voltage as low as 0.5more » V were recorded. Simulation by density functional theory (DFT) suggests that mismatch of the density of states (DOS) is responsible for these novel switching behaviors.« less

  19. Switching behaviors of graphene-boron nitride nanotube heterojunctions

    SciTech Connect (OSTI)

    Parashar, Vyom; Durand, Corentin P.; Hao, Boyi; Amorim, Rodrigo G.; Pandey, Ravindra; Tiwari, Bishnu; Zhang, Dongyan; Liu, Yang; Li, An -Ping; Yap, Yoke Khin

    2015-07-20

    High electron mobility of graphene has enabled their application in high-frequency analogue devices but their gapless nature has hindered their use in digital switches. In contrast, the structural analogous, h-BN sheets and BN nanotubes (BNNTs) are wide band gap insulators. Here we show that the growth of electrically insulating BNNTs on graphene can enable the use of graphene as effective digital switches. These graphene-BNNT heterojunctions were characterized at room temperature by four-probe scanning tunneling microscopy (4-probe STM) under real-time monitoring of scanning electron microscopy (SEM). A switching ratio as high as 105 at a turn-on voltage as low as 0.5 V were recorded. Simulation by density functional theory (DFT) suggests that mismatch of the density of states (DOS) is responsible for these novel switching behaviors.

  20. PCDAS Version 2. 2: Remote network control and data acquisition

    SciTech Connect (OSTI)

    Fishbaugher, M.J.

    1987-09-01

    This manual is intended for both technical and non-technical people who want to use the PCDAS remote network control and data acquisition software. If you are unfamiliar with remote data collection hardware systems designed at Pacific Northwest Laboratory (PNL), this introduction should answer your basic questions. Even if you have some experience with the PNL-designed Field Data Acquisition Systems (FDAS), it would be wise to review this material before attempting to set up a network. This manual was written based on the assumption that you have a rudimentary understanding of personal computer (PC) operations using Disk Operating System (DOS) version 2.0 or greater (IBM 1984). You should know how to create subdirectories and get around the subdirectory tree.

  1. Potentiometric Response Characteristics of Membrane-BasedCs+-Selective Electrodes Containing Ionophore-Functionalized Polymeric Microspheres

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

    Peper, Shane; Gonczy, Chad

    2011-01-01

    Cs+-selective solvent polymeric membrane-based ion-selective electrodes (ISEs) were developed by doping ethylene glycol-functionalized cross-linked polystyrene microspheres (P-EG) into a plasticized poly(vinyl chloride) (PVC) matrix containing sodium tetrakis-(3,5-bis(trifluoromethyl)phenyl) borate (TFPB) as the ion exchanger. A systematic study examining the effects of the membrane plasticizers bis(2-ethylhexyl) sebacate (DOS), 2-nitrophenyl octyl ether (NPOE), and 2-fluorophenyl nitrophenyl ether (FPNPE) on the potentiometric response and selectivity of the corresponding electrodes was performed. Under certain conditions, P-EG-based ion-selective electrodes (ISEs) containing TFPB and plasticized with NPOE exhibited a super-Nernstian response between110?3and110?4?M Cs+, a response characteristic not observed in analogous membranes plasticized with either DOS or FPNPE.moreAdditionally, the performance of P-EG-based ISEs was compared to electrodes based on two mobile ionophores, a neutral lipophilic ethylene glycol derivative (ethylene glycol monooctadecyl ether (U-EG)) and a charged metallacarborane ionophore, sodium bis(dicarbollyl)cobaltate(III) (CC). In general, P-EG-based electrodes plasticized with FPNPE yielded the best performance, with a linear range from 10-110-5?M Cs+, a conventional lower detection limit of8.110?6?M Cs+, and a response slope of 57.7?mV/decade. The pH response of P-EG ISEs containing TFPB was evaluated for membranes plasticized with either NPOE or FPNPE. In both cases, the electrodes remained stable throughout the pH range 312, with only slight proton interference observed below pH 3.less

  2. Diffusive and quantum effects of water properties in different states of matter

    SciTech Connect (OSTI)

    Yeh, Kuan-Yu; Huang, Shao-Nung; Chen, Li-Jen E-mail: stlin@ntu.edu.tw; Lin, Shiang-Tai E-mail: stlin@ntu.edu.tw

    2014-07-28

    The enthalpy, entropy, and free energy of water are important physical quantities for understanding many interesting phenomena in biological systems. However, conventional approaches require different treatments to incorporate quantum and diffusive effects of water in different states of matter. In this work, we demonstrate the use of the two-phase thermodynamic (2PT) model as a unified approach to obtain the properties of water over the whole phase region of water from short (∼20 ps) classical molecular dynamics trajectories. The 2PT model provides an effective way to separate the diffusive modes (gas-like component) from the harmonic vibrational modes (solid-like component) in the vibrational density of states (DoS). Therefore, both diffusive and quantum effect can be properly accounted for water by applying suitable statistical mechanical weighting functions to the DoS components. We applied the 2PT model to systematically examine the enthalpy, entropy, and their temperature dependence of five commonly used rigid water models. The 2PT results are found to be consistent with those obtained from more sophisticated calculations. While the thermodynamic properties determined from different water models are largely similar, the phase boundary determined from the equality of free energy is very sensitive to the small inaccuracy in the values of enthalpy and absolute entropy. The enthalpy, entropy, and diffusivity of water are strongly interrelated, which challenge further improvement of rigid water model via parameter fitting. Our results show that the 2PT is an efficient method for studying the properties of water under various chemical and biological environments.

  3. Potentiometric Response Characteristics of Membrane-Based Cs + -Selective Electrodes Containing Ionophore-Functionalized Polymeric Microspheres

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

    Peper, Shane; Gonczy, Chad

    2011-01-01

    Csmore » + -selective solvent polymeric membrane-based ion-selective electrodes (ISEs) were developed by doping ethylene glycol-functionalized cross-linked polystyrene microspheres (P-EG) into a plasticized poly(vinyl chloride) (PVC) matrix containing sodium tetrakis-(3,5-bis(trifluoromethyl)phenyl) borate (TFPB) as the ion exchanger. A systematic study examining the effects of the membrane plasticizers bis(2-ethylhexyl) sebacate (DOS), 2-nitrophenyl octyl ether (NPOE), and 2-fluorophenyl nitrophenyl ether (FPNPE) on the potentiometric response and selectivity of the corresponding electrodes was performed. Under certain conditions, P-EG-based ion-selective electrodes (ISEs) containing TFPB and plasticized with NPOE exhibited a super-Nernstian response between 1 × 10 − 3 and 1 × 10 − 4  M+ , a response characteristic not observed in analogous membranes plasticized with either DOS or FPNPE. Additionally, the performance of P-EG-based ISEs was compared to electrodes based on two mobile ionophores, a neutral lipophilic ethylene glycol derivative (ethylene glycol monooctadecyl ether (U-EG)) and a charged metallacarborane ionophore, sodium bis(dicarbollyl)cobaltate(III) (CC). In general, P-EG-based electrodes plasticized with FPNPE yielded the best performance, with a linear range from 10 -1 –10 -5  M+ , a conventional lower detection limit of 8.1 × 10 − 6  M+ , and a response slope of 57.7 mV/decade. The pH response of P-EG ISEs containing TFPB was evaluated for membranes plasticized with either NPOE or FPNPE. In both cases, the electrodes remained stable throughout the pH range 3–12, with only slight proton interference observed below pH 3.« less

  4. Sulfanegen sodium treatment in a rabbit model of sub-lethal cyanide toxicity

    SciTech Connect (OSTI)

    Brenner, Matthew; Kim, Jae G.; Lee, Jangwoen; Mahon, Sari B.; Lemor, Daniel; Ahdout, Rebecca; Boss, Gerry R.; Blackledge, William; Jann, Lauren; Nagasawa, Herbert T.; Patterson, Steven E.

    2010-11-01

    The aim of this study is to investigate the ability of intramuscular and intravenous sulfanegen sodium treatment to reverse cyanide effects in a rabbit model as a potential treatment for mass casualty resulting from cyanide exposure. Cyanide poisoning is a serious chemical threat from accidental or intentional exposures. Current cyanide exposure treatments, including direct binding agents, methemoglobin donors, and sulfur donors, have several limitations. Non-rhodanese mediated sulfur transferase pathways, including 3-mercaptopyruvate sulfurtransferase (3-MPST) catalyze the transfer of sulfur from 3-MP to cyanide, forming pyruvate and less toxic thiocyanate. We developed a water-soluble 3-MP prodrug, 3-mercaptopyruvatedithiane (sulfanegen sodium), with the potential to provide a continuous supply of substrate for CN detoxification. In addition to developing a mass casualty cyanide reversal agent, methods are needed to rapidly and reliably diagnose and monitor cyanide poisoning and reversal. We use non-invasive technology, diffuse optical spectroscopy (DOS) and continuous wave near infrared spectroscopy (CWNIRS) to monitor physiologic changes associated with cyanide exposure and reversal. A total of 35 animals were studied. Sulfanegen sodium was shown to reverse the effects of cyanide exposure on oxyhemoglobin and deoxyhemoglobin rapidly, significantly faster than control animals when administered by intravenous or intramuscular routes. RBC cyanide levels also returned to normal faster following both intramuscular and intravenous sulfanegen sodium treatment than controls. These studies demonstrate the clinical potential for the novel approach of supplying substrate for non-rhodanese mediated sulfur transferase pathways for cyanide detoxification. DOS and CWNIRS demonstrated their usefulness in optimizing the dose of sulfanegen sodium treatment.

  5. Sandia National Laboratories support of the Iraq Nuclear Facility Dismantlement and Disposal Program.

    SciTech Connect (OSTI)

    Cochran, John Russell; Danneels, Jeffrey John

    2009-03-01

    Because of past military operations, lack of upkeep and looting there are now enormous radioactive waste problems in Iraq. These waste problems include destroyed nuclear facilities, uncharacterized radioactive wastes, liquid radioactive waste in underground tanks, wastes related to the production of yellow cake, sealed radioactive sources, activated metals and contaminated metals that must be constantly guarded. Iraq currently lacks the trained personnel, regulatory and physical infrastructure to safely and securely manage these facilities and wastes. In 2005 the International Atomic Energy Agency (IAEA) agreed to organize an international cooperative program to assist Iraq with these issues. Soon after, the Iraq Nuclear Facility Dismantlement and Disposal Program (the NDs Program) was initiated by the U.S. Department of State (DOS) to support the IAEA and assist the Government of Iraq (GOI) in eliminating the threats from poorly controlled radioactive materials. The Iraq NDs Program is providing support for the IAEA plus training, consultation and limited equipment to the GOI. The GOI owns the problems and will be responsible for implementation of the Iraq NDs Program. Sandia National Laboratories (Sandia) is a part of the DOS's team implementing the Iraq NDs Program. This report documents Sandia's support of the Iraq NDs Program, which has developed into three principal work streams: (1) training and technical consultation; (2) introducing Iraqis to modern decommissioning and waste management practices; and (3) supporting the IAEA, as they assist the GOI. Examples of each of these work streams include: (1) presentation of a three-day training workshop on 'Practical Concepts for Safe Disposal of Low-Level Radioactive Waste in Arid Settings;' (2) leading GOI representatives on a tour of two operating low level radioactive waste disposal facilities in the U.S.; and (3) supporting the IAEA's Technical Meeting with the GOI from April 21-25, 2008. As noted in the report, there was significant teaming between the various participants to best help the GOI. On-the-ground progress is the focus of the Iraq NDs Program and much of the work is a transfer of technical and practical skills and knowledge that Sandia uses day-to-day. On-the-ground progress was achieved in July of 2008 when the GOI began the physical cleanup and dismantlement of the Active Metallurgical Testing Laboratory (LAMA) facility at Al Tuwaitha, near Baghdad.

  6. Foreign Affairs Information System (FAIS) Early Operational Capability (EOC) network security criteria

    SciTech Connect (OSTI)

    Not Available

    1988-09-12

    The Joint Center for Information Security Technology (JCIST) at Oak Ridge, Tennessee, under an interagency agreement between the Department of State (DOS) and the Department of Energy (DOE), has been tasked with the security certification testing of the Foreign Affairs Information system (FAIS) Early Operational Capability (EOC) software. The basis for this certification is the FAIS (EOC) Security Requirements Allocation (SRA) document. This document defines the security requirements for the FAIS EOC software. Security certification of the FAIS system is the responsibility of the Office of Information Systems Security, Bureau of Diplomatic Security (DS/ST/ISS). The overall FAIS EOC certification will be completed in two general steps. First, a test of a stand-alone FAIS EOC system against the SRA requirements which is currently in progress. Second is a test of all FAIS network system interfaces against the SRA requirements as expanded to adequately address the network security issues. This accumulation of requirements is referred to as the FAIS EOC Network Security Criteria. 5 refs.

  7. Enhancing international radiation/nuclear detection training opportunities

    SciTech Connect (OSTI)

    Williams, Thomas L.; Bersell, Bridget M.; Booker, Paul M.; Anderson, Gerald E.; Leitch, Rosalyn M.; Meagher, John B.; Siefken, Rob R.; Spracklen, James L.

    2015-09-23

    The United States has worked domestically to develop and provide radiological and nuclear detection training and education initiatives aimed at interior law enforcement, but the international community has predominantly focused efforts at border and customs officials. The interior law enforcement officials of a State play a critical role in maintaining an effective national-level nuclear detection architecture. To meet this vital need, DNDO was funded by the U.S. Department of State (DOS) to create and deliver a 1-week course at the International Law Enforcement Academy (ILEA) in Budapest, Hungary to inform interior law enforcement personnel of the overall mission, and to provide an understanding of how the participants can combat the threats of radiological and nuclear terrorism through detection efforts. Two courses, with approximately 20 students in each course, were delivered in fiscal year (FY) 2013, two were delivered in FY 2014 and FY 2015, and as of this report’s writing more are planned in FY 2016. However, while the ILEA courses produced measurable success, DNDO requested Pacific Northwest National Laboratory (PNNL) research potential avenues to further increase the course impact.In a multi-phased approach, PNNL researched and analyzed several possible global training locations and venues, and other possible ways to increase the impact of the course using an agreed-to data-gathering format.

  8. Electron-phonon coupling and thermal transport in the thermoelectric compound Mo3Sb7–xTex

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

    Bansal, Dipanshu; Li, Chen W.; Said, Ayman H.; Abernathy, Douglas L.; Yan, Jiaqiang; Delaire, Olivier A.

    2015-12-07

    Phonon properties of Mo3Sb7–xTex (x = 0, 1.5, 1.7), a potential high-temperature thermoelectric material, have been studied with inelastic neutron and x-ray scattering, and with first-principles simulations. The substitution of Te for Sb leads to pronounced changes in the electronic struc- ture, local bonding, phonon density of states (DOS), dispersions, and phonon lifetimes. Alloying with tellurium shifts the Fermi level upward, near the top of the valence band, resulting in a strong suppression of electron-phonon screening, and a large overall stiffening of interatomic force- constants. The suppression in electron-phonon coupling concomitantly increases group velocities and suppresses phonon scattering rates, surpassingmore » the effects of alloy-disorder scattering, and re- sulting in a surprising increased lattice thermal conductivity in the alloy. We also identify that the local bonding environment changes non-uniformly around different atoms, leading to variable perturbation strengths for different optical phonon branches. The respective roles of changes in phonon group velocities and phonon lifetimes on the lattice thermal conductivity are quantified. Lastly, our results highlight the importance of the electron-phonon coupling on phonon mean-free-paths in this compound, and also estimates the contributions from boundary scattering, umklapp scattering, and point-defect scattering.« less

  9. Efficient Algorithms for Estimating the Absorption Spectrum within Linear Response TDDFT

    SciTech Connect (OSTI)

    Brabec, Jiri; Lin, Lin; Shao, Meiyue; Govind, Niranjan; Yang, Chao; Saad, Yousef; Ng, Esmond

    2015-10-06

    We present two iterative algorithms for approximating the absorption spectrum of molecules within linear response of time-dependent density functional theory (TDDFT) framework. These methods do not attempt to compute eigenvalues or eigenvectors of the linear response matrix. They are designed to approximate the absorption spectrum as a function directly. They take advantage of the special structure of the linear response matrix. Neither method requires the linear response matrix to be constructed explicitly. They only require a procedure that performs the multiplication of the linear response matrix with a vector. These methods can also be easily modified to efficiently estimate the density of states (DOS) of the linear response matrix without computing the eigenvalues of this matrix. We show by computational experiments that the methods proposed in this paper can be much more efficient than methods that are based on the exact diagonalization of the linear response matrix. We show that they can also be more efficient than real-time TDDFT simulations. We compare the pros and cons of these methods in terms of their accuracy as well as their computational and storage cost.

  10. Application of expert systems for diagnosing equipment failures at central energy plants. Final report

    SciTech Connect (OSTI)

    Moshage, R.; Kantamneni, M.; Schanche, G.; Metea, M.; Blazek, C.

    1993-12-01

    The growing cost of operating and maintaining its central heating plants (CHPs) has forced the Army to seek alternatives to traditional methods of running these facilities. Computer technology offers the potential to automate and assist in many tasks, such as in the diagnosis of equipment malfunctions and failures in Army CHPs. An automated diagnostic tool for heating plant equipment could lower the cost of human labor by freeing personnel for higher priority work. Automatic diagnosis of problems could also reduce downtime for repair, promote thermal efficiency, and improve on-line reliability. Researchers at the U.S. Army Construction Engineering Research Laboratories (USACERL) investigated the application of artificial intelligence (AI) using knowledge-based expert systems to the monitoring and diagnosing of CHP boiler operations. A prototype system (MAD) was developed to Monitor And Diagnose boiler failure or identify inefficient operation, and recommend action to optimize combustion efficiency. The system includes a knowledge base containing rules for diagnosing the condition of major package boiler components. Minimum system requirements for MAD are an IBM-compatible AT-class personal computer (PC) with 640K base memory and 1 megabyte extended memory, 1.5 megabytes of free hard drive space, a color graphics adaptor (CGA), and DOS 3.0 (or higher).

  11. Effect of strain along C-axis NbS{sub 2}

    SciTech Connect (OSTI)

    Singh, Tapender Kumar, Jagdish Sastri, O. S. K. S.

    2015-05-15

    We have studied electronic properties of double layered hexagonal structure of the Niobium Di-Sulphide (2H-NbS{sub 2}) superconductor for various strains introduced along the c-axis using ab-initio calculations. The DFT calculations based on Full Potential Linearized Augmented Plane Wave (FPLAPW) method are performed using the ELK code. The total energy curve (E vs a), Density of States (DOS) and the Band structure calculations obtained in this work are matching with the earlier reports. The Pressure-Volume (P-V) diagram for 2H-NbS{sub 2} was obtained using the Equation of State(EOS) calculations, which provides the relationship between the pressure and strain applied along the c-axis. The band structures for various strains ranging from 0 percent to 10 percent along c-axis in steps of 2 percent are obtained. We note that there are increasing number of bands crossing over the Fermi energy level with increase in strain. Thus, we conclude that with increasing strain along c-axis, number of conduction bands crossing the E{sub F} increases, which gives rise to more conduction states and hence higher conductivity.

  12. Effect of Ligands on Characteristics of (CdSe)13 Quantum Dot

    SciTech Connect (OSTI)

    Gao, Yang; Zhou, Bo; Kang, Seung-gu; Xin, Minsi; Yang, Ping; Dai, Xing; Wang, Zhigang; Zhou, Ruhong

    2014-01-01

    The widespread applications of quantum dots (QDs) have spurred an increasing interest in the study of their coating ligands, which can not only protect the electronic structures of the central QDs, but also control their permeability through biological membranes with both size and shape. In this work, we have used density functional theory (DFT) to investigate the electronic structures of (CdSe)13 passivated by OPMe2(CH2)nMe ligands with different lengths and various numbers of branches (Me=methyl group, n = 0, 1-3). Our results show that the absorption peak in the ultraviolet-visible (UV-vis) spectra displays a clear blue-shift, on the scale of ~100 nm, upon the binding of ligands. Once the total number of ligands bound with (CdSe)13 reached a saturated number (9 or 10), no more blue-shift occurred in the absorption peak in the UV-vis spectra. On the other hand, the aliphatic chain length of ligands has a negligible effect on the optical properties of the QD core. Analyses of the bonding characteristics confirm that optical transitions are dominantly governed by the central QD core rather than the organic passivation. Interestingly, the density of states (DOS) share similar characteristics as vibrational spectra, even though there is no coordination vibration mode between the ligands and the central QD. These findings might provide insights on the material design for the passivation of quantum dots for biomedical applications.

  13. Geometric and Electronic Properties of Graphene Modified by External N-Containing Groups

    SciTech Connect (OSTI)

    Wang, Xinde; Cai, Qiuxia; Zhuang, Guilin; Zhong, Xing; Mei, Donghai; Li, Xiaonian; Wang, Jianguo

    2014-10-14

    By means of the first-principles spin polarized density functional theory (DFT) calculations, we investigated structures and electronic properties of external nitrogen-containing groups (pyridine derivatives) modified graphene via single or double bonding mode. This study of single-bond pyridine derivatives modified graphene (SBPG) shows that the ortho-carbon is the most favorable adsorption site for pyridine derivatives on graphene, as confirmed by bader charge analysis. The external stability of pyridine derivatives on graphene by [2+2] cycloaddition is caused by the match between frontier orbitals of pyridine derivatives and those of graphene, which leading to the formation of stronger chemical bonds. Interestingly, electronic structure analysis reveals that the spin-up and spin-down parts DOS of SBPG clearly split, while it is not found for double-bonds pyridine derivatives modified graphene (DBPG). This work was supported by the 973 project (2013CB733501) and the National Natural Science Foundation of China ( 21101137, 21136001, 21176221, 21306169 and 91334013). D. Mei is supported by the US Department of Energy, Office of Basic Energy Sciences, Division of Chemical Sciences, Geosciences & Biosciences. Pacific Northwest National Laboratory (PNNL) is a multiprogram national laboratory operated for DOE by Battelle.

  14. RISKIND: An enhanced computer code for National Environmental Policy Act transportation consequence analysis

    SciTech Connect (OSTI)

    Biwer, B.M.; LePoire, D.J.; Chen, S.Y.

    1996-03-01

    The RISKIND computer program was developed for the analysis of radiological consequences and health risks to individuals and the collective population from exposures associated with the transportation of spent nuclear fuel (SNF) or other radioactive materials. The code is intended to provide scenario-specific analyses when evaluating alternatives for environmental assessment activities, including those for major federal actions involving radioactive material transport as required by the National Environmental Policy Act (NEPA). As such, rigorous procedures have been implemented to enhance the code`s credibility and strenuous efforts have been made to enhance ease of use of the code. To increase the code`s reliability and credibility, a new version of RISKIND was produced under a quality assurance plan that covered code development and testing, and a peer review process was conducted. During development of the new version, the flexibility and ease of use of RISKIND were enhanced through several major changes: (1) a Windows{sup {trademark}} point-and-click interface replaced the old DOS menu system, (2) the remaining model input parameters were added to the interface, (3) databases were updated, (4) the program output was revised, and (5) on-line help has been added. RISKIND has been well received by users and has been established as a key component in radiological transportation risk assessments through its acceptance by the U.S. Department of Energy community in recent environmental impact statements (EISs) and its continued use in the current preparation of several EISs.

  15. Na9K16TI~25: A New Phase Containing Naked Icosahedral Cluster Fragments Ti99-

    SciTech Connect (OSTI)

    Li, Bin; Corbett, John D.

    2007-12-05

    The phase Na{sub 9}K{sub 16}Tl{sub 25.25(2)} was synthesized by fusion of the elements in sealed Ta containers followed by quenching and annealing at 250 C. The structure established by single crystal X-ray diffraction means (P6{sub 3}/m, Z = 2, a = 19.376(3) {angstrom}, c = 11.480(2) {angstrom}) features Tl{sub 9}{sup 9-} clusters. These are well separated by cations that bridge between, faces, edges, and vertices of the clusters; sodium appears to be essential in this role. This is the third compound known to contain Tl{sub 9} clusters, but here two of nine sites are partially occupied, which can be interpreted as a 70:30 mixture of Tl{sub 9} and Tl{sub 7} units in the same cavity. This Tl{sub 9} example also displays lower symmetry (C{sub s}) but requires the same 2n skeletal electrons. EHTB electronic structure calculations indicate that the Fermi level intersects a finite densities-of-states (DOS), and only some bonds are optimized at E{sub F}, giving some insight regarding the site of Tl deficiency. Direct geometric relationships are found among Tl{sub 13}, Tl{sub 9}, Tl{sub 7} and Tl{sub 5} clusters through systematic removal of vertices.

  16. Automation and optimization of the design parameters in tactical military pipeline systems. Master's thesis

    SciTech Connect (OSTI)

    Frick, R.M.

    1988-12-01

    Tactical military petroleum pipeline systems will play a vital role in any future conflict due to an increased consumption of petroleum products by our combined Armed Forces. The tactical pipeline must be rapidly constructed and highly mobile to keep pace with the constantly changing battle zone. Currently, the design of these pipeline system is time consuming and inefficient, which may cause shortages of fuel and pipeline components at the front lines. Therefore, a need for a computer program that will both automate and optimize the pipeline design process is quite apparent. These design needs are satisfied by developing a software package using Advance Basic (IBM DOS) programming language and made to run on an IBM-compatible personal computer. The program affords the user the options of either finding the optimum pump station locations for a proposed pipeline or calculating the maximum operating pressures for an existing pipeline. By automating the design procedure, a field engineer can vary the pipeline length, diameter, roughness, viscosity, gravity, flow rate, pump station pressure, or terrain profile and see how it affects the other parameters in just a few seconds. The design process was optimized by implementing a weighting scheme based on the volume percent of each fuel in the pipeline at any given time.

  17. In situ TEM observation of electrochemical lithiation of sulfur confined within inner cylindrical pores of carbon nanotubes

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

    Kim, Hyea; Lee, Jung Tae; Magasinski, Alexandre; Zhao, Kejie; Liu, Yang; Yushin, Gleb

    2015-10-26

    Lithium insertion into sulfur confined within 200 nm cylindrical inner pores of individual carbon nanotubes (CNTs) was monitored in-situ in a transmission electron microscope (TEM). This electrochemical reaction was initiated at one end of the S-filled CNTs. The material expansion during lithiation was accommodated by the expansion into the remaining empty pore volume and no fracture of the CNT walls was detected. A sharp interface between the initial and lithiated S was observed. The reaction front was flat, oriented perpendicular to the confined S cylinder and propagated along the cylinder length. Lithiation of S in the proximity of conductive carbonmore » proceeded at the same rate as the one in the center of the pore, suggesting the presence of electron pathways at the Li2S/S interface. Density of states (DOS) calculations further confirmed this hypothesis. In-situ electron diffraction showed a direct phase transformation of S into nanocrystalline Li2S without detectable formation of any intermediates, such as polysulfides and LiS. These important insights may elucidate some of the reaction mechanisms and guide the improvements in the design of C-S nanocomposites for high specific energy Li-S batteries. As a result, the proposed use of conductive CNTs with tunable pore diameter as cylindrical reaction vessels for in-situ TEM studies of electrochemical reactions proved to be highly advantageous and may help to resolve the on-going problems in battery technology.« less

  18. PASSBY(with FitToDB)

    Energy Science and Technology Software Center (OSTI)

    2002-08-28

    The PASSBY program is used to operate the Sensor for Measurement and analysis of radiation transients (SMART). The unit records triggers an "Event" upon detecting an increase in count rate recorded with a sodium iodide gamma-ray spectrometer. Background radiation levels are monitored continuously and background spectra are updated at 60 second intervals if no radiation sources are present other than those in the natural background. the system accepts input from an optional neutron counter. Inmore » addition to spectral information, the location, determined with an internal GPS and the compass bearing are reported via either an RF modem or a serial cable. The gamma-ray spectra are analyzed to determine which isotopes are present and confidence levels are assigned. The analysis is performed using the FitToDB algorithm, is described as follows. The automatic identification algorithm FitToDB algorithm enables the automatic identification of gamma-ry emitting isotopes in shielded sources. FitToDB can identify combinations of up to ten isotopes, each of which may be viewed through different shielding materials. The algorithm runs rapidly (within about 3 seconds on a 100 MHz Pentium-class processor), and can be compiled to run both DOS and Windows operating systems. Computational speed and system interoperability issues are addressed by the approach of interpolating spectra from an existing database of computed templates rather than performing detector response functions calculations within the algorithm.« less

  19. Structure and Bonding of Tungsten Oxide Clusters on Nanostructured Cu-O Surfaces

    SciTech Connect (OSTI)

    Wagner, Margareta; Surnev, Svetlozar; Ramsey, Michael; Barcaro, Giovanni; Sementa, Luca; Negreiros, Fabio R.; Fortunelli, Alessandro; Dohnalek, Zdenek; Netzer, Falko P.

    2011-12-01

    (WO3)3 gas-phase clusters generated via vacuum sublimation are deposited under UHV and low temperature (5 K) conditions on a Cu(110) 'stripe' phase consisting of alternating Cu-O (2x1) and clean Cu regions. STM imaging shows that the clusters adsorb as intact units on both substrates, and the suggested adsorption geometries are confirmed by density-functional (DF) simulations. On the clean surface the overall distortion is minor and we are able to image the nodal structure of an individual molecular orbital in the STM at low bias, whereas on the Cu-O surface both the clusters and the substrate are significantly distorted, due to the strong oxygen affinity of W atoms. On both surfaces cluster and Cu electronic states are appreciably mixed, and electron charge is donated by the surface to the cluster. The experimentally STS-determined DOS signature of the adsorption complex consists in two peaks across the Fermi energy and is well reproduced by the DF calculations.

  20. Electron-phonon coupling and thermal transport in the thermoelectric compound Mo3Sb7–xTex

    SciTech Connect (OSTI)

    Bansal, Dipanshu; Li, Chen W.; Said, Ayman H.; Abernathy, Douglas L.; Yan, Jiaqiang; Delaire, Olivier A.

    2015-12-07

    Phonon properties of Mo3Sb7–xTex (x = 0, 1.5, 1.7), a potential high-temperature thermoelectric material, have been studied with inelastic neutron and x-ray scattering, and with first-principles simulations. The substitution of Te for Sb leads to pronounced changes in the electronic struc- ture, local bonding, phonon density of states (DOS), dispersions, and phonon lifetimes. Alloying with tellurium shifts the Fermi level upward, near the top of the valence band, resulting in a strong suppression of electron-phonon screening, and a large overall stiffening of interatomic force- constants. The suppression in electron-phonon coupling concomitantly increases group velocities and suppresses phonon scattering rates, surpassing the effects of alloy-disorder scattering, and re- sulting in a surprising increased lattice thermal conductivity in the alloy. We also identify that the local bonding environment changes non-uniformly around different atoms, leading to variable perturbation strengths for different optical phonon branches. The respective roles of changes in phonon group velocities and phonon lifetimes on the lattice thermal conductivity are quantified. Lastly, our results highlight the importance of the electron-phonon coupling on phonon mean-free-paths in this compound, and also estimates the contributions from boundary scattering, umklapp scattering, and point-defect scattering.

  1. Visual Empirical Region of Influence (VERI) Pattern Recognition Algorithms

    SciTech Connect (OSTI)

    2002-05-01

    We developed new pattern recognition (PR) algorithms based on a human visual perception model. We named these algorithms Visual Empirical Region of Influence (VERI) algorithms. To compare the new algorithm's effectiveness against othe PR algorithms, we benchmarked their clustering capabilities with a standard set of two-dimensional data that is well known in the PR community. The VERI algorithm succeeded in clustering all the data correctly. No existing algorithm had previously clustered all the pattens in the data set successfully. The commands to execute VERI algorithms are quite difficult to master when executed from a DOS command line. The algorithm requires several parameters to operate correctly. From our own experiences we realized that if we wanted to provide a new data analysis tool to the PR community we would have to provide a new data analysis tool to the PR community we would have to make the tool powerful, yet easy and intuitive to use. That was our motivation for developing graphical user interfaces (GUI's) to the VERI algorithms. We developed GUI's to control the VERI algorithm in a single pass mode and in an optimization mode. We also developed a visualization technique that allows users to graphically animate and visually inspect multi-dimensional data after it has been classified by the VERI algorithms. The visualization technique that allows users to graphically animate and visually inspect multi-dimensional data after it has been classified by the VERI algorithms. The visualization package is integrated into the single pass interface. Both the single pass interface and optimization interface are part of the PR software package we have developed and make available to other users. The single pass mode only finds PR results for the sets of features in the data set that are manually requested by the user. The optimization model uses a brute force method of searching through the cominations of features in a data set for features that produce the best pattern recognition results. With a small number of features in a data set an exact solution can be determined. However, the number of possible combinations increases exponentially with the number of features and an alternate means of finding a solution must be found. We developed and implemented a technique for finding solutions in data sets with both small and large numbers of features. The VERI interface tools were written using the Tcl/Tk GUI programming language, version 8.1. Although the Tcl/Tk packages are designed to run on multiple computer platforms, we have concentrated our efforts to develop a user interface for the ubiquitous DOS environment. The VERI algorithms are compiled, executable programs. The interfaces run the VERI algorithms in Leave-One-Out mode using the Euclidean metric.

  2. Visual Empirical Region of Influence (VERI) Pattern Recognition Algorithms

    Energy Science and Technology Software Center (OSTI)

    2002-05-01

    We developed new pattern recognition (PR) algorithms based on a human visual perception model. We named these algorithms Visual Empirical Region of Influence (VERI) algorithms. To compare the new algorithm's effectiveness against othe PR algorithms, we benchmarked their clustering capabilities with a standard set of two-dimensional data that is well known in the PR community. The VERI algorithm succeeded in clustering all the data correctly. No existing algorithm had previously clustered all the pattens inmore » the data set successfully. The commands to execute VERI algorithms are quite difficult to master when executed from a DOS command line. The algorithm requires several parameters to operate correctly. From our own experiences we realized that if we wanted to provide a new data analysis tool to the PR community we would have to provide a new data analysis tool to the PR community we would have to make the tool powerful, yet easy and intuitive to use. That was our motivation for developing graphical user interfaces (GUI's) to the VERI algorithms. We developed GUI's to control the VERI algorithm in a single pass mode and in an optimization mode. We also developed a visualization technique that allows users to graphically animate and visually inspect multi-dimensional data after it has been classified by the VERI algorithms. The visualization technique that allows users to graphically animate and visually inspect multi-dimensional data after it has been classified by the VERI algorithms. The visualization package is integrated into the single pass interface. Both the single pass interface and optimization interface are part of the PR software package we have developed and make available to other users. The single pass mode only finds PR results for the sets of features in the data set that are manually requested by the user. The optimization model uses a brute force method of searching through the cominations of features in a data set for features that produce the best pattern recognition results. With a small number of features in a data set an exact solution can be determined. However, the number of possible combinations increases exponentially with the number of features and an alternate means of finding a solution must be found. We developed and implemented a technique for finding solutions in data sets with both small and large numbers of features. The VERI interface tools were written using the Tcl/Tk GUI programming language, version 8.1. Although the Tcl/Tk packages are designed to run on multiple computer platforms, we have concentrated our efforts to develop a user interface for the ubiquitous DOS environment. The VERI algorithms are compiled, executable programs. The interfaces run the VERI algorithms in Leave-One-Out mode using the Euclidean metric.« less

  3. In situ TEM observation of electrochemical lithiation of sulfur confined within inner cylindrical pores of carbon nanotubes

    SciTech Connect (OSTI)

    Kim, Hyea; Lee, Jung Tae; Magasinski, Alexandre; Zhao, Kejie; Liu, Yang; Yushin, Gleb

    2015-10-26

    Lithium insertion into sulfur confined within 200 nm cylindrical inner pores of individual carbon nanotubes (CNTs) was monitored in-situ in a transmission electron microscope (TEM). This electrochemical reaction was initiated at one end of the S-filled CNTs. The material expansion during lithiation was accommodated by the expansion into the remaining empty pore volume and no fracture of the CNT walls was detected. A sharp interface between the initial and lithiated S was observed. The reaction front was flat, oriented perpendicular to the confined S cylinder and propagated along the cylinder length. Lithiation of S in the proximity of conductive carbon proceeded at the same rate as the one in the center of the pore, suggesting the presence of electron pathways at the Li2S/S interface. Density of states (DOS) calculations further confirmed this hypothesis. In-situ electron diffraction showed a direct phase transformation of S into nanocrystalline Li2S without detectable formation of any intermediates, such as polysulfides and LiS. These important insights may elucidate some of the reaction mechanisms and guide the improvements in the design of C-S nanocomposites for high specific energy Li-S batteries. As a result, the proposed use of conductive CNTs with tunable pore diameter as cylindrical reaction vessels for in-situ TEM studies of electrochemical reactions proved to be highly advantageous and may help to resolve the on-going problems in battery technology.

  4. Vacancies in ordered and disordered titanium monoxide: Mechanism of B1 structure stabilization

    SciTech Connect (OSTI)

    Kostenko, M.G.; Lukoyanov, A.V.; Zhukov, V.P.; Rempel, A.A.

    2013-08-15

    The electronic structure and stability of three phases of titanium monoxide TiO{sub y} with B1 type of the basic structure have been studied. Cubic phase without structural vacancies, TiO, and two phases with structural vacancies, monoclinic Ti{sub 5}O{sub 5} and cubic disordered TiO{sub 1.0}, was treated by means of first-principles calculations within the density functional theory with pseudo-potential approach based on the plane wave's basis. The ordered monoclinic phase Ti{sub 5}O{sub 5} was found to be the most stable and the cubic TiO without vacancies the less stable one. The role of structural vacancies in the titanium sublattice is to decrease the Fermi energy, the role of vacancies in the oxygen sublattice is to contribute to the appearance of Ti–Ti bonding interactions through these vacancies and to reinforce the Ti–Ti interactions close to them. Listed effects are significantly pronounced if the vacancies in the titanium and oxygen sublattices are associated in the so called “vacancy channels” which determine the formation of vacancy ordered structure of monoclinic Ti{sub 5}O{sub 5}-type. - Graphical abstract: Changes in total DOS of titanium monoxide when going from vacancy-free TiO to TiO with disordered structural vacancies and to TiO with ordered structural vacancies. Highlights: • Ordered monoclinic Ti{sub 5}O{sub 5} is the most stable phase of titanium monoxide. • Vacancy-free TiO is the less stable phase of the titanium monoxide. • Ordering of oxygen vacancies leads to the appearance of Ti–Ti bonding interactions. • Titanium vacancies contribute significantly to the decreasing of the Fermi energy.

  5. Soot Particle Studies - Instrument Inter-Comparison Project Overview

    SciTech Connect (OSTI)

    Cross, E.; Sedlacek, A.; Onasch, T. B.; Ahern, A.; Wrobel, W.; Slowik, J. G.; Olfert, J.; Lack, D. A.; Massoli, P.; Cappa, C. D.; Schwarz, J.; Spackman, J. R.; Fahey, D. W.; Trimborn, A.; Jayne, J. T.; Freedman, A.; Williams, L. R.; Ng, N. L.; Mazzoleni, C.; Dubey, M.; Brem, B.; Kok, G.; Subramanian, R.; Freitag, S.; Clarke, A.; Thornhill, D.; Marr, L.; Kolb, C. E.; Worsnop, D. R.; Davidovits, P.

    2010-03-06

    An inter-comparison study of instruments designed to measure the microphysical and optical properties of soot particles was completed. The following mass-based instruments were tested: Couette Centrifugal Particle Mass Analyzer (CPMA), Time-of-Flight Aerosol Mass Spectrometer - Scanning Mobility Particle Sizer (AMS-SMPS), Single Particle Soot Photometer (SP2), Soot Particle-Aerosol Mass Spectrometer (SP-AMS) and Photoelectric Aerosol Sensor (PAS2000CE). Optical instruments measured absorption (photoacoustic, interferometric, and filter-based), scattering (in situ), and extinction (light attenuation within an optical cavity). The study covered an experimental matrix consisting of 318 runs that systematically tested the performance of instruments across a range of parameters including: fuel equivalence ratio (1.8 {le} {phi} {le} 5), particle shape (mass-mobility exponent (D{sub f m}), 2.0 {le} D{sub f m} {le} 3.0), particle mobility size (30 {le} d{sub m} {le} 300 nm), black carbon mass (0.07 {le} m{sub BC} {le} 4.2 fg) and particle chemical composition. In selected runs, particles were coated with sulfuric acid or dioctyl sebacate (DOS) (0.5 {le} {Delta}r{sub ve} {le} 201 nm) where {Delta}r{sub ve} is the change in the volume equivalent radius due to the coating material. The effect of non-absorbing coatings on instrument response was determined. Changes in the morphology of fractal soot particles were monitored during coating and denuding processes and the effect of particle shape on instrument response was determined. The combination of optical and mass based measurements was used to determine the mass specific absorption coefficient for denuded soot particles. The single scattering albedo of the particles was also measured. An overview of the experiments and sample results are presented.

  6. Physical Modeling of Scaled Water Distribution System Networks.

    SciTech Connect (OSTI)

    O'Hern, Timothy J.; Hammond, Glenn Edward; Orear, Leslie ,; van Bloemen Waanders, Bart G.; Paul Molina; Ross Johnson

    2005-10-01

    Threats to water distribution systems include release of contaminants and Denial of Service (DoS) attacks. A better understanding, and validated computational models, of the flow in water distribution systems would enable determination of sensor placement in real water distribution networks, allow source identification, and guide mitigation/minimization efforts. Validation data are needed to evaluate numerical models of network operations. Some data can be acquired in real-world tests, but these are limited by 1) unknown demand, 2) lack of repeatability, 3) too many sources of uncertainty (demand, friction factors, etc.), and 4) expense. In addition, real-world tests have limited numbers of network access points. A scale-model water distribution system was fabricated, and validation data were acquired over a range of flow (demand) conditions. Standard operating variables included system layout, demand at various nodes in the system, and pressure drop across various pipe sections. In addition, the location of contaminant (salt or dye) introduction was varied. Measurements of pressure, flowrate, and concentration at a large number of points, and overall visualization of dye transport through the flow network were completed. Scale-up issues that that were incorporated in the experiment design include Reynolds number, pressure drop across nodes, and pipe friction and roughness. The scale was chosen to be 20:1, so the 10 inch main was modeled with a 0.5 inch pipe in the physical model. Controlled validation tracer tests were run to provide validation to flow and transport models, especially of the degree of mixing at pipe junctions. Results of the pipe mixing experiments showed large deviations from predicted behavior and these have a large impact on standard network operations models.3

  7. ENergy and Power Evaluation Program

    SciTech Connect (OSTI)

    1996-11-01

    In the late 1970s, national and international attention began to focus on energy issues. Efforts were initiated to design and test analytical tools that could be used to assist energy planners in evaluating energy systems, particularly in developing countries. In 1984, the United States Department of Energy (DOE) commissioned Argonne National Laboratory`s Decision and Information Sciences Division (DIS) to incorporate a set of analytical tools into a personal computer-based package for distribution in developing countries. The package developed by DIS staff, the ENergy and Power Evaluation Program (ENPEP), covers the range of issues that energy planners must face: economic development, energy demand projections, supply-and-demand balancing, energy system expansion, and environmental impact analysis. Following the original DOE-supported development effort, the International Atomic Energy Agency (IAEA), with the assistance from the US Department of State (DOS) and the US Department of Energy (DOE), provided ENPEP training, distribution, and technical support to many countries. ENPEP is now in use in over 60 countries and is an international standard for energy planning tools. More than 500 energy experts have been trained in the use of the entire ENPEP package or some of its modules during the international training courses organized by the IAEA in collaboration with Argonne`s Decision and Information Sciences (DIS) Division and the Division of Educational Programs (DEP). This report contains the ENPEP program which can be download from the internet. Described in this report is the description of ENPEP Program, news, forums, online support and contacts.

  8. PST user`s guide

    SciTech Connect (OSTI)

    Rempe, J.L.; Cebull, M.J.; Gilbert, B.G.

    1996-10-01

    The Parametric Source Term (PST) software allows estimation of radioactivity release fractions for Level 2 Probabilistic Safety Assessments (PSAs). PST was developed at the Idaho National Engineering Laboratory (INEL) for the Nuclear Regulatory Commission`s (NRC`s) Accident Sequence Precursor (ASP) Program. PST contains a framework of equations that model activity transport between volumes in the release pathway from the core, through the vessel, through the containment, and to the environment. PST quickly obtains exact solutions to differential equations for activity transport in each volume for each time interval. PST provides a superior method for source term estimation because it: ensures conservation of activity transported across various volumes in the release pathway; provides limited consideration of the time-dependent behavior of input parameter uncertainty distributions; allows input to be quantified using state-of-the-art severe accident analysis code results; increases modeling flexibility because linkage between volumes is specified by user input; and allows other types of Light Water Reactor (LWR) plant designs to be evaluated with minimal modifications. PST is a microcomputer-based system that allows the analyst more flexibility than a mainframe system. PST has been developed to run with both MS DOS and MS Windows 95/NT operating systems. PST has the capability to load ASP Source Term Vector (STV) information, import pre-specified default input for the 6 Pressurized Water Reactors (PWRs) initially analyzed in the NRC ASP program, allow input value modifications for release fraction sensitivity studies, export user-specified default input for the LWR being modeled, report results of radioactivity release calculations at each time interval, and generate formatted results that can interface with other risk assessment codes. This report describes the PST model and provides guidelines for using PST.

  9. QA procedures and emissions from nonstandard sources in AQUIS, a PC-based emission inventory and air permit manager

    SciTech Connect (OSTI)

    Smith, A.E.; Tschanz, J.; Monarch, M.

    1996-05-01

    The Air Quality Utility Information System (AQUIS) is a database management system that operates under dBASE IV. It runs on an IBM-compatible personal computer (PC) with MS DOS 5.0 or later, 4 megabytes of memory, and 30 megabytes of disk space. AQUIS calculates emissions for both traditional and toxic pollutants and reports emissions in user-defined formats. The system was originally designed for use at 7 facilities of the Air Force Materiel Command, and now more than 50 facilities use it. Within the last two years, the system has been used in support of Title V permit applications at Department of Defense facilities. Growth in the user community, changes and additions to reference emission factor data, and changing regulatory requirements have demanded additions and enhancements to the system. These changes have ranged from adding or updating an emission factor to restructuring databases and adding new capabilities. Quality assurance (QA) procedures have been developed to ensure that emission calculations are correct even when databases are reconfigured and major changes in calculation procedures are implemented. This paper describes these QA and updating procedures. Some user facilities include light industrial operations associated with aircraft maintenance. These facilities have operations such as fiberglass and composite layup and plating operations for which standard emission factors are not available or are inadequate. In addition, generally applied procedures such as material balances may need special treatment to work in an automated environment, for example, in the use of oils and greases and when materials such as polyurethane paints react chemically during application. Some techniques used in these situations are highlighted here. To provide a framework for the main discussions, this paper begins with a description of AQUIS.

  10. Non-equilibrium STLS approach to transport properties of single impurity Anderson model

    SciTech Connect (OSTI)

    Rezai, Raheleh Ebrahimi, Farshad

    2014-04-15

    In this work, using the non-equilibrium Keldysh formalism, we study the effects of the electronelectron interaction and the electron-spin correlation on the non-equilibrium Kondo effect and the transport properties of the symmetric single impurity Anderson model (SIAM) at zero temperature by generalizing the self-consistent method of Singwi, Tosi, Land, and Sjolander (STLS) for a single-band tight-binding model with Hubbard type interaction to out of equilibrium steady-states. We at first determine in a self-consistent manner the non-equilibrium spin correlation function, the effective Hubbard interaction, and the double-occupancy at the impurity site. Then, using the non-equilibrium STLS spin polarization function in the non-equilibrium formalism of the iterative perturbation theory (IPT) of Yosida and Yamada, and Horvatic and Zlatic, we compute the spectral density, the currentvoltage characteristics and the differential conductance as functions of the applied bias and the strength of on-site Hubbard interaction. We compare our spectral densities at zero bias with the results of numerical renormalization group (NRG) and depict the effects of the electronelectron interaction and electron-spin correlation at the impurity site on the aforementioned properties by comparing our numerical result with the order U{sup 2} IPT. Finally, we show that the obtained numerical results on the differential conductance have a quadratic universal scaling behavior and the resulting Kondo temperature shows an exponential behavior. -- Highlights: We introduce for the first time the non-equilibrium method of STLS for Hubbard type models. We determine the transport properties of SIAM using the non-equilibrium STLS method. We compare our results with order-U2 IPT and NRG. We show that non-equilibrium STLS, contrary to the GW and self-consistent RPA, produces the two Hubbard peaks in DOS. We show that the method keeps the universal scaling behavior and correct exponential behavior of Kondo temperature.

  11. Palladium site ordering and the occurrence of superconductivity in Bi{sub 2}Pd{sub 3}Se{sub 2-x}S{sub x}

    SciTech Connect (OSTI)

    Weihrich, R.; Matar, S.F.; Anusca, I.; Pielnhofer, F.; Peter, P.; Bachhuber, F.; Eyert, V.

    2011-04-15

    The crystallographic and electronic structures of compounds related to parkerite (Bi{sub 2}Ni{sub 3}S{sub 2}) are investigated with respect to the recently reported occurrence (Bi{sub 2}Pd{sub 3}Se{sub 2}) and absence (Bi{sub 2}Pd{sub 3}S{sub 2}) of superconductivity. Similarities and differences of the crystal structures are discussed within the series of solid solutions Bi{sub 2}Pd{sub 3}S{sub 2-x}Se{sub x} from powder and single crystal diffraction data. From crystal structure refinements, the question of different structures and settings of parkerite is discussed. Similar and different 2D and 3D partial Pd-Ch (Ch=S, Se) structures are related to half antiperovskite ordering schemes. To investigate the relation of low dimensional structures and the occurrence of superconductivity, electronic structures are analyzed by scalar-relativistic DFT calculations, including site projected DOS, ECOV and Fermi surfaces. -- Graphical abstract: Structure relations for perovskite type BiPd{sub 3}C, BiPd{sub 3/2}Se and BiPd{sub 3/2}S. Display Omitted Research highlights: {yields} Merging crystallographic and electronic structures studies to understand chalcogenides related to parkerite (Bi{sub 2}Ni{sub 3}S{sub 2}). {yields} Investigation in view of recently reported occurrence (Bi{sub 2}Pd{sub 3}Se{sub 2}) and absence (Bi{sub 2}Pd{sub 3}S{sub 2}) of superconductivity. {yields} Relationship of half perovskites with perovskites.

  12. Antitrust exemptions for international energy program participants, and schools and hospitals energy-conservation programs. Hearing before the Subcommittee on Energy and Power of the Committee on Interstate and Foreign Commerce, House of Representatives, Ninety-Sixth Congress, First Session on H. R. 4445, July 16, 1979

    SciTech Connect (OSTI)

    Not Available

    1980-01-01

    The text of H.R. 4445, a bill to amend the Energy Policy and Conservation Act (EPCA), is presented. The hearings were conducted to examine the activities of the oil companies that participated in voluntary agreements to carry out the international energy program. The conduct of that program by the governmental agencies and appropriate statutes are investigated. Under the provisions of EPCA, the voluntary agreements must be approved by the Attorney General. The law also requires that meetings of oil companies that participate in these agreements be closely monitored by Federal officials, that transcripts be made of all such meetings, and that all necessary steps are taken to insure that such activities have the minimum possible anticompetitive effects. If all of these procedures are followed, the law provides a limited antitrust immunity for the activities of the oil companies in carrying out these voluntary agreements. In general, the activities of the oil companies have two major roles in carrying out the international energy program: (1) they supply information to the International Energy Agency to aid it in analyzing the world oil supplies; (2) they establish the mechanisms that would be used by the agency if oil-sharing agreements under the program are triggered. Congressman John D. Dingell, presiding chairman at the hearings, expressed concern with the international energyprogram and the participation of the oil companies; the secrecy that surrounds the meetings of the oil companies; and the nature of the participation of the oil companies in the oil-sharing agreements. Witnesses testifying included Harry E. Bergold, DOE; Ky P. Ewing, Department of Justice; Robert Goodwin, DOE; Kamp, Steven, Lobel, Novins, and Lamont; Julius L. Katz, DOS; William J. Lamont, attorney; Willian B. McGurn, III and Charles D. Mahaffie, Cleary, Gottlieb, Steen, and Hamilton; Ronald B. Rowe and Marc G. Schildkraut, Federal Trade Commission.

  13. Influence of valence electron concentration on Laves phases: Structures and phase stability of pseudo-binary MgZn2-xPdx

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

    Thimmaiah, Srinivasa; Miller, Gordon J.

    2015-06-03

    A series of pseudo-binary compounds MgZn2-xPdx (0.15 ≤ x ≤ 1.0) were synthesized and structurally characterized to understand the role of valence electron concentration (vec) on the prototype Laves phase MgZn2 with Pd-substitution. Three distinctive phase regions were observed with respect to Pd content, all exhibiting fundamental Laves phase structures: 0.1 ≤ x ≤ 0.3 (MgNi2-type, hP24; MgZn1.80Pd0.20(2)), 0.4 ≤ x ≤ 0.6 (MgCu2-type, cF24; MgZn1.59Pd0.41(2)), and 0.62 ≤ x ≤ 0.8 (MgZn2-type, hP12: MgZn1.37Pd0.63(2)). Refinements from single-crystal X-ray diffraction indicated nearly statistical distributions of Pd and Zn atoms among the majority atom sites in these structures. Interestingly, the MgZn2-typemore » structure re-emerges in MgZn2–xPdx at x ≈ 0.7 with the refined composition MgZn1.37(2)Pd0.63 and a c/a ratio of 1.59 compared to 1.64 for binary MgZn2. Electronic structure calculations on a model “MgZn1.25Pd0.75” yielded a density of states (DOS) curve showing enhancement of a pseudogap at the Fermi level as a result of electronic stabilization due to the Pd addition. Moreover, integrated crystal orbital Hamilton population values show significant increases of orbital interactions for (Zn,Pd)–(Zn,Pd) atom pairs within the majority atom substructure, i.e., within the Kagomé nets as well as between a Kagomé net and an apical site, from binary MgZn2 to the ternary “MgZn1.25Pd0.75”. Multi-centered bonding is evident from electron localization function plots for “MgZn1.25Pd0.75”, an outcome which is in accordance with analysis of other Laves phases.« less

  14. Open-field host specificity test of Gratiana boliviana (Coleoptera: Chrysomelidae), a biological control agent of tropical soda apple (Solanaceae) in the United States

    SciTech Connect (OSTI)

    Gandolfo, D.; McKay, F.; Medal, J.C.; Cuda, J.P.

    2007-03-15

    An open-field experiment was conducted to assess the suitability of the South American leaf feeding beetle Gratiana boliviana Spaeth for biological control of Solanum viarum Dunal in the USA. An open-field test with eggplant, Solanum melongena L., was conducted on the campus of the University of Buenos Aires, Argentina, and a S. viarum control plot was established 40 km from the campus. One hundred adult beetles were released in each plot at the beginning of the experiment during the vegetative stage of the plants, and forty additional beetles were released in the S. melongena plot at the flowering stage. All the plants in each plot were checked twice a week and the number of adults, immatures, and eggs recorded. Results showed almost a complete rejection of eggplant by G. boliviana. No noticeable feeding damage was ever recorded on eggplant. The experiment was ended when the eggplants started to senesce or were severely damaged by whiteflies and spider mites. The results of this open-field experiment corroborate previous quarantine/laboratory host-specificity tests indicating that a host range expansion of G. boliviana to include eggplant is highly unlikely. Gratiana boliviana was approved for field release in May 2003 in the USA. To date, no non-target effects have been observed either on eggplant or native species of Solanum. (author) [Spanish] Una prueba de campo fue conducida para evaluar la especificidad del escarabajo suramericano defoliador Gratiana boliviana Spaeth para control biologico de Solanum viarum Dunal en los Estados Unidos. La prueba con berenjena se realizo en el campo experimental de la Universidad de Buenos Aires, Argentina, y una parcela control con S. viarum fue establecida a 40 km. Cien escarabajos adultos fueron liberados en cada parcela al inicio del experimento durante la fase vegetativa, y cuarenta escarabajos adicionales fueron liberados en la parcela de berenjena durante la floracion. Todas las plantas en cada parcela fueron inspeccionadas dos veces a la semana y el numero de adultos, larvas, y posturas fueron registrados. Resultados indicaron un casi completo rechazo de la berenjena por G. boliviana. Ningun dano visible de defoliacion en la berenjena fue detectado. Las pruebas concluyeron cuando las plantas de berenjena alcazaron su madurez o fueron severamente danadas por mosca blanca y acaros. Resultados corroboran previas pruebas de especificidad en laboratorio/cuarentena que indican que la berenjena no es un hospedero de G. boliviana y que la posibilidad de llegar a ser una plaga de este cultivo es muy remota. Gratiana boliviana fue aprobado para ser liberado en el campo en mayo del 2003. Ningun dano ha sido observado hasta la fecha a plantas no blanco. (author)

  15. Ca{sub 2}Pd{sub 3}Ge, a new fully ordered ternary Laves phase structure

    SciTech Connect (OSTI)

    Doverbratt, Isa; Ponou, Simeon; Lidin, Sven

    2013-01-15

    The title compound, Ca{sub 2}Pd{sub 3}Ge, was prepared as a part of a systematic investigation of the Ca-Pd-Ge ternary phase diagram. The structure was determined and refined from single-crystal X-ray diffraction data. It is a new fully ordered ternary Laves phase with the space group R-3m, Z=3, a=5.6191 (5) A, c=12.1674 (7) A, wR{sub 2}=0.054 (all data) and is isostructural to Mg{sub 2}Ni{sub 3}Si (Noreus et al., 1985 [17]) but due to the larger size of all elements in Ca{sub 2}Pd{sub 3}Ge, the cell axes are approximately 10% longer. The compound may formally be considered as a Zintl compound, with [Pd{sub 3}Ge]{sup 4-} forming a poly-anionic network and divalent Ca cations located in truncated tetrahedral interstices. The electronic structure and chemical bonding of Ca{sub 2}Pd{sub 3}Ge is discussed in terms of LMTO band structure calculations and compared with CaPd{sub 2} (MgCu{sub 2}-type). - Graphical abstract: The title compound, Ca{sub 2}Pd{sub 3}Ge is a new fully ordered ternary Laves phase which may formally be considered as a Zintl compound, with [Pd{sub 3}Ge]{sup 4-} forming a poly-anionic network and divalent Ca cations located in truncated tetrahedral interstices. The structure is composed of Kagome net layers, consisting of Pd atoms only, which are stacked in an ABC sequence. Band structure calculations show that the Fermi level is located at a local minimum of the DOS (pseudo-gap) indicating that the charge is roughly optimized in the structure. Highlights: Black-Right-Pointing-Pointer Site specific segregation in a Laves phase that is also a Zintl phase. Black-Right-Pointing-Pointer Pseudo-gap at the Fermi level in a Laves phase. Black-Right-Pointing-Pointer Distorted Frank-Kasper polyhedron.

  16. Influence of valence electron concentration on Laves phases: Structures and phase stability of pseudo-binary MgZn2-xPdx

    SciTech Connect (OSTI)

    Thimmaiah, Srinivasa; Miller, Gordon J.

    2015-06-03

    A series of pseudo-binary compounds MgZn2-xPdx (0.15 ? x ? 1.0) were synthesized and structurally characterized to understand the role of valence electron concentration (vec) on the prototype Laves phase MgZn2 with Pd-substitution. Three distinctive phase regions were observed with respect to Pd content, all exhibiting fundamental Laves phase structures: 0.1 ? x ? 0.3 (MgNi2-type, hP24; MgZn1.80Pd0.20(2)), 0.4 ? x ? 0.6 (MgCu2-type, cF24; MgZn1.59Pd0.41(2)), and 0.62 ? x ? 0.8 (MgZn2-type, hP12: MgZn1.37Pd0.63(2)). Refinements from single-crystal X-ray diffraction indicated nearly statistical distributions of Pd and Zn atoms among the majority atom sites in these structures. Interestingly, the MgZn2-type structure re-emerges in MgZn2xPdx at x ? 0.7 with the refined composition MgZn1.37(2)Pd0.63 and a c/a ratio of 1.59 compared to 1.64 for binary MgZn2. Electronic structure calculations on a model MgZn1.25Pd0.75 yielded a density of states (DOS) curve showing enhancement of a pseudogap at the Fermi level as a result of electronic stabilization due to the Pd addition. Moreover, integrated crystal orbital Hamilton population values show significant increases of orbital interactions for (Zn,Pd)(Zn,Pd) atom pairs within the majority atom substructure, i.e., within the Kagom nets as well as between a Kagom net and an apical site, from binary MgZn2 to the ternary MgZn1.25Pd0.75. Multi-centered bonding is evident from electron localization function plots for MgZn1.25Pd0.75, an outcome which is in accordance with analysis of other Laves phases.

  17. Phase equilibria, formation, crystal and electronic structure of ternary compounds in Ti-Ni-Sn and Ti-Ni-Sb ternary systems

    SciTech Connect (OSTI)

    Romaka, V.V.; Rogl, P.; Romaka, L.; Stadnyk, Yu.; Melnychenko, N.; Grytsiv, A.; Falmbigl, M.; Skryabina, N.

    2013-01-15

    The phase equilibria of the Ti-Ni-Sn and Ti-Ni-Sb ternary systems have been studied in the whole concentration range by means of X-ray and EPM analyses at 1073 K and 873 K, respectively. Four ternary intermetallic compounds TiNiSn (MgAgAs-type), TiNi{sub 2-x}Sn (MnCu{sub 2}Al-type), Ti{sub 2}Ni{sub 2}Sn (U{sub 2}Pt{sub 2}Sn-type), and Ti{sub 5}NiSn{sub 3} (Hf{sub 5}CuSn{sub 3}-type) are formed in Ti-Ni-Sn system at 1073 K. The TiNi{sub 2}Sn stannide is characterized by homogeneity in the range of 50-47 at% of Ni. The Ti-Ni-Sb ternary system at 873 K is characterized by formation of three ternary intermetallic compounds, Ti{sub 0.8}NiSb (MgAgAs-type), Ti{sub 5}Ni{sub 0.45}Sb{sub 2.55} (W{sub 5}Si{sub 3}-type), and Ti{sub 5}NiSb{sub 3} (Hf{sub 5}CuSn{sub 3}-type). The solubility of Ni in Ti{sub 0.8}NiSb decreases number of vacancies in Ti site up to Ti{sub 0.91}Ni{sub 1.1}Sb composition. - Graphical abstract: Isothermal section of the Ti-Ni-Sn phase diagram and DOS distribution in hypothetical TiNi{sub 1+x}Sn solid solution. Highlights: Black-Right-Pointing-Pointer Ti-Ni-Sn phase diagram was constructed at 1073 K. Black-Right-Pointing-Pointer Four ternary compounds are formed: TiNiSn, TiNi{sub 2-x}Sn, Ti{sub 2}Ni{sub 2}Sn, and Ti{sub 5}NiSn{sub 3}. Black-Right-Pointing-Pointer Three ternary compounds exist in Ti-Ni-Sb system at 873 K. Black-Right-Pointing-Pointer The TiNi{sub 2}Sb compound is absent.

  18. COMPARISON OF THREE METHODS TO PROJECT FUTURE BASELINE CARBON EMISSIONS IN TEMPERATE RAINFOREST, CURINANCO, CHILE

    SciTech Connect (OSTI)

    Patrick Gonzalez; Antonio Lara; Jorge Gayoso; Eduardo Neira; Patricio Romero; Leonardo Sotomayor

    2005-07-14

    Deforestation of temperate rainforests in Chile has decreased the provision of ecosystem services, including watershed protection, biodiversity conservation, and carbon sequestration. Forest conservation can restore those ecosystem services. Greenhouse gas policies that offer financing for the carbon emissions avoided by preventing deforestation require a projection of future baseline carbon emissions for an area if no forest conservation occurs. For a proposed 570 km{sup 2} conservation area in temperate rainforest around the rural community of Curinanco, Chile, we compared three methods to project future baseline carbon emissions: extrapolation from Landsat observations, Geomod, and Forest Restoration Carbon Analysis (FRCA). Analyses of forest inventory and Landsat remote sensing data show 1986-1999 net deforestation of 1900 ha in the analysis area, proceeding at a rate of 0.0003 y{sup -1}. The gross rate of loss of closed natural forest was 0.042 y{sup -1}. In the period 1986-1999, closed natural forest decreased from 20,000 ha to 11,000 ha, with timber companies clearing natural forest to establish plantations of non-native species. Analyses of previous field measurements of species-specific forest biomass, tree allometry, and the carbon content of vegetation show that the dominant native forest type, broadleaf evergreen (bosque siempreverde), contains 370 {+-} 170 t ha{sup -1} carbon, compared to the carbon density of non-native Pinus radiata plantations of 240 {+-} 60 t ha{sup -1}. The 1986-1999 conversion of closed broadleaf evergreen forest to open broadleaf evergreen forest, Pinus radiata plantations, shrublands, grasslands, urban areas, and bare ground decreased the carbon density from 370 {+-} 170 t ha{sup -1} carbon to an average of 100 t ha{sup -1} (maximum 160 t ha{sup -1}, minimum 50 t ha{sup -1}). Consequently, the conversion released 1.1 million t carbon. These analyses of forest inventory and Landsat remote sensing data provided the data to evaluate the three methods to project future baseline carbon emissions. Extrapolation from Landsat change detection uses the observed rate of change to estimate change in the near future. Geomod is a software program that models the geographic distribution of change using a defined rate of change. FRCA is an integrated spatial analysis of forest inventory, biodiversity, and remote sensing that produces estimates of forest biodiversity and forest carbon density, spatial data layers of future probabilities of reforestation and deforestation, and a projection of future baseline forest carbon sequestration and emissions for an ecologically-defined area of analysis. For the period 1999-2012, extrapolation from Landsat change detection estimated a loss of 5000 ha and 520,000 t carbon from closed natural forest; Geomod modeled a loss of 2500 ha and 250 000 t; FRCA projected a loss of 4700 {+-} 100 ha and 480,000 t (maximum 760,000 t, minimum 220,000 t). Concerning labor time, extrapolation for Landsat required 90 actual days or 120 days normalized to Bachelor degree level wages; Geomod required 240 actual days or 310 normalized days; FRCA required 110 actual days or 170 normalized days. Users experienced difficulties with an MS-DOS version of Geomod before turning to the Idrisi version. For organizations with limited time and financing, extrapolation from Landsat change provides a cost-effective method. Organizations with more time and financing could use FRCA, the only method where that calculates the deforestation rate as a dependent variable rather than assuming a deforestation rate as an independent variable. This research indicates that best practices for the projection of baseline carbon emissions include integration of forest inventory and remote sensing tasks from the beginning of the analysis, definition of an analysis area using ecological characteristics, use of standard and widely used geographic information systems (GIS) software applications, and the use of species-specific allometric equations and wood densities developed for local species.

  19. Combined effect of chemical pressure and valence electron concentration through the electron-deficient Li substitution on the RE{sub 4}LiGe{sub 4} (RE=La, Ce, Pr, and Sm) system

    SciTech Connect (OSTI)

    Nam, Gnu; Jeon, Jieun; Kim, Youngjo; Kwon Kang, Sung; Ahn, Kyunghan; You, Tae-Soo

    2013-09-15

    Four members of the RE{sub 4}LiGe{sub 4} (RE=La, Ce, Pr, and Sm) system have been prepared by high-temperature reaction method and characterized by X-ray diffractions. All compounds crystallize in the orthorhombic Gd{sub 5}Si{sub 4}-type structure (space group Pnma, Pearson code oP16) with bonding interactions for interslab Ge{sub 2} dimers. The Li substitution for rare-earth elements in the RE{sub 4}LiGe{sub 4} system leads to a combined effect of the increased chemical pressure and the decreased valance electron concentration (VEC), which eventually results in the structure transformation from the Sm{sub 5}Ge{sub 4}-type with all broken interslab Ge–Ge bond for the parental RE{sub 5}Ge{sub 4} to the Gd{sub 5}Si{sub 4}-type structure for the ternary RE{sub 4}LiGe{sub 4} (RE=La, Ce, Pr, and Sm) system. Site-preference between rare-earth metals and Li is proven to generate energetically the most favorable atomic arrangements according to coloring-problem, and the rationale is provided using both the size-factor and the electronic-factor related, respectively, to site-volume and electronegativity as well as QVAL values. Tight-binding, linear-muffin-tin-orbital (TB-LMTO) calculations are performed to investigate electronic densities of states (DOS) and crystal orbital Hamilton population (COHP) curves. The influence of reduced VEC for chemical bonding including the formation of interslab Ge{sub 2} dimers is also discussed. The magnetic property measurements prove that the non-magnetic Li substitution leads to the ferromagnetic (FM)-like ground state for Ce{sub 4}LiGe{sub 4} and the co-existence of antiferromagntic (AFM) and FM ground states for Sm{sub 4}LiGe{sub 4}. - Graphical abstract: Reported is a combined effect of the chemical pressure and the reduced VEC caused by the smaller monovalent non-magnetic Li substitution for the larger trivalent magnetic rare-earth metals in the RE{sub 4}LiGe{sub 4} (RE=La, Ce, Pr, and Sm) system. This results in the structure transformation from the Sm{sub 5}Ge{sub 4}-type to the Gd{sub 5}Si{sub 4}-type structure and the changes in magnetic properties. Display Omitted - Highlights: • Four Li-containing intermetallic compounds RE{sub 4}LiGe{sub 4} (RE=La, Ce, Pr and Sm) were synthesized. • The combined effect of the chemical pressure and the reduced VEC caused by Li substitution for a rare-earth metal results in the structure transformation. • Electronic structures and magnetic properties of title compounds were thoroughly investigated.

  20. Strongly correlated f-electron systems: A PES study

    SciTech Connect (OSTI)

    Arko, A.J.; Joyce, J.J.; Sarrao, J.; Thompson, J.D.; Morales, L.; Fisk, Z.; Henkie, Z.; Cichorek, T.

    1998-12-31

    The term heavy fermions refers to materials (thus far only compounds with elements having an unfilled 4f or 5f shells) whose large specific heat {gamma}-values suggest that the conduction electrons at low temperatures have a very heavy effective mass. Magnetic susceptibility measurements, {chi}, generally yield a Curie-Weiss behavior at high temperatures with a well developed moment, which would be consistent with localized behavior of the f-electrons. Thus, the f-electrons appear to behave as non-interacting single impurities at elevated temperature. Below a characteristic Kondo temperature, T{sub K}, the susceptibility levels off or even decreases. This is interpreted as a compensation of the f-moment by the ligand conduction electrons that are believed to align anti-parallel to form a singlet state and has led to the widespread use of the Anderson Impurity Hamiltonian and the Single Impurity Model (SIM). Weak hybridization with these conduction electrons yields a narrow, highly temperature dependent, DOS at the Fermi energy, often referred to as the Kondo resonance (KR). At still lower temperatures it is generally agreed that in stoichiometric compounds a lattice of these singlet states finally results in extremely narrow bands at the Fermi energy, whose bandwidth is of the order k{sub B}T{sub K}. Clearly coherent bands cannot form above T{sub K} owing to the narrow width. A model for periodic Kondo systems will inevitably have to include the lattice. Preliminary PAM calculations indicate that this inclusion yields results differing qualitatively, rather than just quantitatively, from the SIM predictions. The photoemission data on single crystal heavy fermions are consistent with the following PAM predictions: (1) the temperature dependence of the KR is much slower than expected from the SIM; indeed, it is primarily7 due to broadening and Fermi function truncation; (2) the spectral weight of the KR relative to the localized 4f feature (not discussed here) is much larger than the SIM expectations (equivalently, n{sub f} values are far too small); (3) the KR and its sidebands does not lose spectral weight with T, but rather only broadens; (4) f-electrons in both Ce and U systems form narrow bands already far above T{sub K} (the jury is still out for Yb systems); (5) the width of these bands is much larger than k{sub B}T{sub K}; (6) f-character is obtained in only some regions of the Brillouin zone; i.e., momentum dependence of the KR above T{sub K}. While the PAM seems to predict the correct trends, they have no reason yet to rule out other models, such as those of Liu and Sheng and Cooper. Such discrimination may occur when the models develop sufficiently to allow real system calculations.