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


1

Lac du Flambeau Band of Lake Superior Chippewa Indians Strategic Energy Plan  

SciTech Connect

This plan discusses the current energy use on the Lac du Flambeau Reservation, the current status of the Tribe's energy program, as well as the issues and concerns with energy on the reservation. This plan also identifies and outlines energy opportunities, goals, and objectives for the Tribe to accomplish. The overall goal of this plan is to address the energy situation of the reservation in a holistic manner for the maximum benefit to the Tribe. This plan is an evolving document that will be re-evaluated as the Tribe's energy situation changes.

Bryan Hoover

2009-11-16T23:59:59.000Z

2

Lac du Flambeau Band of Lake Superior Chippewa Indians Strategic Energy Plan  

SciTech Connect

This plan discusses the current energy use on the Lac du Flambeau Reservation, the current status of the Tribe's energy program, as well as the issues and concerns with energy on the reservation. This plan also identifies and outlines energy opportunities, goals, and objectives for the Tribe to accomplish. The overall goal of this plan is to address the energy situation of the reservation in a holistic manner for the maximum benefit to the Tribe. This plan is an evolving document that will be re-evaluated as the Tribe's energy situation changes.

Bryan Hoover

2009-11-16T23:59:59.000Z

3

Fond du Lac County, Wisconsin: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Fond du Lac County, Wisconsin: Energy Resources Fond du Lac County, Wisconsin: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 43.7008379°, -88.2461183° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.7008379,"lon":-88.2461183,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

4

MI-TRIBE-LAC VIEUX DESERT BAND OF LAKE SUPERIOR CHIPPEWA  

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

MI-TRIBE-LAC VIEUX DESERT BAND OF LAKE SUPERIOR CHIPPEWA MI-TRIBE-LAC VIEUX DESERT BAND OF LAKE SUPERIOR CHIPPEWA INDIANS Location: Tribe MI-TRIBE-LAC VIEUX DESERT BAND OF LAKE SUPERIOR CHIPPEWA INDIANS MI American Recovery and Reinvestment Act: Proposed Action or Project Description The Lac Vieux Desert Tribe proposes to use funding to help with a current effort that is a collaboration of the Tribe with the Conservation Fund of Michigan, an effort that is funded by the W.K. Kellogg Foundation. The project will be conducting a feasibility study to determine the viability of using wood products from resources found on tribal lands. The study is dedicating a part of the effort to see the feasibility of providing a renewable energy source to the Tribe in the form of wood products and biomass fuels. NEPA

5

The Coronae of AR Lac  

E-Print Network (OSTI)

We observed the coronally active eclipsing binary AR Lac with the High Energy Transmission Grating on Chandra for a total of 97 ks, spaced over five orbits, at quadratures and conjunctions. Contemporaneous and simultaneous ...

Huenemoerder, David P.

6

14th LAC Congress Abstracts  

Science Conference Proceedings (OSTI)

Abstracts from the 2011 Latin American Congress 14th LAC Congress Abstracts 14th AOCS Latin American Congress and Exhibition on Fats and Oils Resumenes/Abstracts Resumenes aparecen en el mismo idioma de la presentacin....

7

Sustaining the natural and economical resources of the Lac Courte Oreilles, Leslie Isham; Jason Weaver  

SciTech Connect

The Lac Courte Oreilles Band of Lake Superior Chippewa Indians, located in northwest Wisconsin has developed a project, entitled Sustaining the Natural and Economic Resources of the LCO Ojibwe. This technical report is a summary of the project.

Isham, Leslie; Weaver, Jason

2013-09-30T23:59:59.000Z

8

Comments of Mille Lacs Energy Cooperative | Department of Energy  

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

Mille Lacs Energy Cooperative Comments of Mille Lacs Energy Cooperative Comments of Mille Lacs Energy Cooperative on Implementing the National Broadband Plan by Studying the...

9

Wind Resource Assessment Report: Mille Lacs Indian Reservation, Minnesota  

DOE Green Energy (OSTI)

The U.S. Environmental Protection Agency (EPA) launched the RE-Powering America's Land initiative to encourage development of renewable energy on potentially contaminated land and mine sites. EPA collaborated with the U.S. Department of Energy's (DOE's) National Renewable Energy Laboratory (NREL) and the Mille Lacs Band of Chippewa Indians to evaluate the wind resource and examine the feasibility of a wind project at a contaminated site located on the Mille Lacs Indian Reservation in Minnesota. The wind monitoring effort involved the installation of a 60-m met tower and the collection of 18 months of wind data at multiple heights above the ground. This report focuses on the wind resource assessment, the estimated energy production of wind turbines, and an assessment of the economic feasibility of a potential wind project sited this site.

Jimenez, A. C.

2013-12-01T23:59:59.000Z

10

UNDP-Dominican Republic Regional Programme for LAC - Support...  

Open Energy Info (EERE)

Programme for LAC - Support for the preparation of the National Climate Change Policy Jump to: navigation, search Name UNDP-Dominican Republic Regional Programme for LAC -...

11

Mille Lacs Energy Cooperative | Open Energy Information  

Open Energy Info (EERE)

Mille Lacs Energy Cooperative Mille Lacs Energy Cooperative (Redirected from Mille Lacs Electric Coop) Jump to: navigation, search Name Mille Lacs Energy Cooperative Place Minnesota Utility Id 12546 Utility Location Yes Ownership C NERC Location MRO NERC MRO Yes ISO MISO Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Dual Fuel Space Heating Rate Electric Combination Heating Rate Freedom Heating Rate Residential General Service Residential Green Power Energy Large Power Commercial Large Power - Industrial Industrial Light - 100 watt HPS Lighting Light - 150 watt HPS Lighting

12

E CO LAC | Open Energy Information  

Open Energy Info (EERE)

CO LAC CO LAC Jump to: navigation, search Name E&CO LAC Place Bloomfield, New York Zip NJ 07003 Sector Services Product E&Co is an independent non-profit organization which provids enterprise development services to sustainable energy projects. Coordinates 42.5454°, -88.365089° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.5454,"lon":-88.365089,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

13

Regional Programme for LAC - Support for the preparation of National...  

Open Energy Info (EERE)

preparation of National Climate Change Strategy Jump to: navigation, search Name UNDP-Argentina Regional Programme for LAC - Support for the preparation of National Climate Change...

14

LAC Regional Platform Workshop Report | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » LAC Regional Platform Workshop Report Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us LAC Workshop Announcement Agenda Participant Package Accommodations Location & Transportation Insurance & Visas Participants Presentations Outcomes Report Links Contact Us LAC LEDS Report Document Title LAC LEDS workshop report - Final (revised 2 Jan 2013).pdf Latin America and Caribbean (LAC) Low Emissions Development Strategies (LEDS) Report Powered by OpenEI ledsgp.org is built on the same platform as the popular Wikipedia site.

15

LAC Regional Platform Workshop Presentations | Open Energy Information  

Open Energy Info (EERE)

LAC Regional Platform Workshop Presentations LAC Regional Platform Workshop Presentations Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us LAC Workshop Announcement Agenda Participant Package Accommodations Location & Transportation Insurance & Visas Participants Presentations Outcomes Report Links Contact Us Introductory Remarks: LAC Regional Platform and Workshop and the LEDS GP Session Document Title LEDS GP slides for LAC Event.pdf LEDS GP Slides Interactive Session 1: Planning and Sustaining a LEDS Process Document Title Fernando Farias - 1aChilev1.pdf Making the Case for LEDS and Building Political Support: Chile on Engaging Ministries and Political Leaders Lupe Guinand - 2012 11 06 PlanCC Apoyo Político VA (2)rev.pdf Planning for Climate Change Project (PlanCC) - Promoviendo Estrategias de Desarrollo Bajas en Carbono (LEDS) en el Perú

16

Mille Lacs Energy Cooperative | Open Energy Information  

Open Energy Info (EERE)

Jump to: navigation, search Jump to: navigation, search Name Mille Lacs Energy Cooperative Place Minnesota Utility Id 12546 Utility Location Yes Ownership C NERC Location MRO NERC MRO Yes ISO MISO Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Dual Fuel Space Heating Rate Electric Combination Heating Rate Freedom Heating Rate Residential General Service Residential Green Power Energy Large Power Commercial Large Power - Industrial Industrial Light - 100 watt HPS Lighting Light - 150 watt HPS Lighting Off-Peak Energy Rate Residential Peak Shave Water Heating Rate Residential

17

UNDP-Costa Rica Regional Programme for LAC - Preparation of Sectoral...  

Open Energy Info (EERE)

Costa Rica Regional Programme for LAC - Preparation of Sectoral LEDs for transport and agriculture Jump to: navigation, search Name UNDP-Costa Rica Regional Programme for LAC -...

18

Lac Courte Oreilles Energy Analysis Project  

Science Conference Proceedings (OSTI)

The Lac Courte Oreilles Tribe applied for first step funding in 2007 and was awarded in October of that year. We wanted to perform an audit to begin fulfilling two commitments we made to our membership and resolutions that we adopted. One was the Kyoto Protocol and reduce our carbon emissions by 25% and to produce 25% of our energy by sustainable means. To complete these goals we needed to begin with first assessing what our carbon emissions are and begin taking the steps to conserve on the energy we currently use. The First Step Grant gave us the opportunity to do this. Upon funding the Energy Project was formed under the umbrella of the LCO Public Works Department and Denise Johnson was hired as the coordinator. She quickly began fulfilling the objectives of the project. Denise began by contact the LCO College and hiring interns who were able to go to each Tribal entity and perform line logging to read and document the energy used for each electrical appliance. Data was also gathered for one full year from each entity for all their utility bills (gasoline, electric, natural gas, fuel oil, etc.). Relationships were formed with the Green Team and other Green Committees in the area that could assist us in this undertaking. The Energy Task Force was of great assistance as well recommending other committees and guidance to completing our project. The data was gathered, compiled and placed into spreadsheets that would be understandable for anyone who didn't have a background in Renewable Resources. While gathering the data Denise was also looking for ways to conserve energy usage, policies changes to implement and any possible viable renewable energy resources. Changes in the social behaviors of our members and employees will require further education by workshops, energy fairs, etc.. This will be looked into and done in coordination with our schools. The renewable resources seem most feasible are wind resources as well as Bio Mass both of which need further assessment and funding to do so will be sought. While we already are in ownership of a Hydro Dam it is currently not functioning to its full capacity we are seeking operation and maintenance firm proposals and funding sources. One of our biggest accomplishment this project gave us was our total Carbon Emissions 9989.45 tons, this will be the number that we will use to base our reductions from. It will help us achieve our goals we have set for ourselves in achieving the Kyoto Protocol and saving our Earth for our future generations. Another major accomplishment and lesson learned is we need to educate ourselves and our people on how to conserve energy to both impact the environment and our own budgets. The Lac Courte Oreilles (LCO) Energy Analysis Project will perform an energy audit to gather information on the Tribe's energy usage and determine the carbon emissions. By performing the audit we will be able to identify areas where conservation efforts are most viable and recommend policies that can be implemented. These steps will enable LCO to begin achieving the goals that have been set by the Tribal Governing Board and adopted through resolutions. The goals are to reduce emissions by 25% and to produce 25% of its energy using sustainable sources. The project objectives were very definitive to assist the Tribe in achieving its goals; reducing carbon emissions and obtaining a sustainable source of energy. The following were the outlined objectives: (1) Coordinate LCO's current and future conservation and renewable energy projects; (2) Establish working relationships with outside entities to share information and collaborate on future projects; (3) Complete energy audit and analyze LCO's energy load and carbon emissions; (4) Identify policy changes, education programs and conservation efforts which are appropriate for the LCO Reservation; and (5) Create a plan to identify the most cost effective renewable energy options for LCO.

Leslie Isham; Denise Johnson

2009-04-01T23:59:59.000Z

19

Lac qui Parle Valley School Wind Farm | Open Energy Information  

Open Energy Info (EERE)

Wind Farm Wind Farm Jump to: navigation, search Name Lac qui Parle Valley School Wind Farm Facility Lac qui Parle Valley School Sector Wind energy Facility Type Community Wind Facility Status In Service Energy Purchaser Lac qui Parle Valley School Location Madison MN Coordinates 45.073288°, -96.056312° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.073288,"lon":-96.056312,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

20

File:(131112) Presentacion LAC LEDs.pdf | Open Energy Information  

Open Energy Info (EERE)

131112) Presentacion LAC LEDs.pdf 131112) Presentacion LAC LEDs.pdf Jump to: navigation, search File File history File usage File:(131112) Presentacion LAC LEDs.pdf Size of this preview: 800 × 600 pixels. Go to page 1 2 3 4 5 6 7 8 9 10 Go! next page → next page → Full resolution ‎(1,500 × 1,125 pixels, file size: 775 KB, MIME type: application/pdf, 10 pages) File history Click on a date/time to view the file as it appeared at that time. Date/Time Thumbnail Dimensions User Comment current 14:15, 12 December 2012 Thumbnail for version as of 14:15, 12 December 2012 1,500 × 1,125, 10 pages (775 KB) Gjones (Talk | contribs) You cannot overwrite this file. Edit this file using an external application (See the setup instructions for more information) File usage The following page links to this file:

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


21

LAC Regional Platform Workshop Links | Open Energy Information  

Open Energy Info (EERE)

LAC Regional Platform Workshop Links LAC Regional Platform Workshop Links Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us LAC Workshop Announcement Agenda Participant Package Accommodations Location & Transportation Insurance & Visas Participants Presentations Outcomes Report Links Contact Us One Page Event Summary (August 16, 2012) LEDS GP LA Regional Platform Launch Event 1 pager (81612)13.pdf }} Powered by OpenEI ledsgp.org is built on the same platform as the popular Wikipedia site. Like Wikipedia, it is a "wiki" or website developed collaboratively by a community of users. Thanks to our unique relationship with OpenEI.org, you can add or edit most content on ledsgp.org. For more information about this

22

LAC Regional Platform Workshop Contact Us | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » LAC Regional Platform Workshop Contact Us Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us LAC Workshop Announcement Agenda Participant Package Accommodations Location & Transportation Insurance & Visas Participants Presentations Outcomes Report Links Contact Us For any questions regarding the LAC Regional Platform Workshop, please contact the LEDS GP Secretariat: Caroline Uriarte caroline.uriarte@nrel.gov Powered by OpenEI ledsgp.org is built on the same platform as the popular Wikipedia site.

23

Understanding BL Lac objects Structural & kinematic mode changes in the BL Lac object PKS 0735+178  

E-Print Network (OSTI)

Context. We present evidence that parsec-scale jets in BL Lac objects may be significantly distinct in kinematics from their counterparts in quasars. We argued this previously for the BL lac sources 1803+784 and 0716+714, report here a similar pattern for another well-known BL Lac object, PKS 0735+178, whose nuclear jet is found to exhibit kinematics atypical of quasars. Aims. A detailed study of the jet components' motion reveals that the standard AGN paradigm of apparent superluminal motion does not always describe the kinematics in BL Lac objects. We study 0735+178 here to augment and improve the understanding of the peculiar motions in the jets of BL Lac objects as a class. Methods. We analyzed 15 GHz VLBA (Very Long Baseline Array) observations (2cm/MOJAVE survey) performed at 23 epochs between 1995.27 and 2008.91. Results. We found a drastic structural mode change in the VLBI jet of 0735+178, between 2000.4 and 2001.8 when its twice sharply bent trajectory turned into a linear shape.We further found tha...

Britzen, S; Gong, B P; Zhang, J W; Gopal-Krishna,; Goyal, Arti; Aller, M F; Aller, H D; Zensus, J A

2010-01-01T23:59:59.000Z

24

Energy Efficiency and Conservation Block Grant Program  

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

U.S. Department of Energy Categorical Exclusion Determination Form Program or Field Office: Energy Efficiency and Conservation Block Grant Program Project Title WI-TRIBE-LAC DU FLAMBEAU BAND OF LAKE SUPERIOR CHIPPEWA INDIANS Location: Tribe WI-TRIBE-LAC DU FLAMBEAU BAND OF LAKE SUPERIOR CHIPPEWA INDIANS WI American Recovery and Reinvestment Act: Proposed Action or Project Description The Lac du Flambeau Band of Lake Superior Chippewa Indians proposes to install an approximate 27-ton,

25

LAC Regional Platform Workshop Agenda | Open Energy Information  

Open Energy Info (EERE)

source source History View New Pages Recent Changes All Special Pages Semantic Search/Querying Get Involved Help Apps Datasets Community Login | Sign Up Search Page Edit History Facebook icon Twitter icon » LAC Regional Platform Workshop Agenda Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us LAC Workshop Announcement Agenda Participant Package Accommodations Location & Transportation Insurance & Visas Participants Presentations Outcomes Report Links Contact Us Agenda Document Title Programme Overview.pdf Programme Overview (1 November 2012) LA workshop 2 pager (91812)1.pdf Overview Agenda (English) (26 September 2012) LA workshop 2 pager (91812)trad.pdf Overview Agenda (Español) (26 September 2012)

26

Mille Lacs County, Minnesota: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Mille Lacs County, Minnesota: Energy Resources Mille Lacs County, Minnesota: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 45.9228403°, -93.6218744° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.9228403,"lon":-93.6218744,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

27

Depleted Uranium (DU) Dioxide Fill  

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

Fill Depleted Uranium (DU) Dioxide Fill DU dioxide in the form of sand may be used to fill the void spaces in the waste package after the package is loaded with SNF. This...

28

LAC Regional Platform Workshop General Information | Open Energy  

Open Energy Info (EERE)

Information Information Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us LAC Workshop Announcement Agenda Participant Package Accommodations Location & Transportation Insurance & Visas Participants Presentations Outcomes Report Links Contact Us General Information (English) General information LEDS GP INCAE English-rev FINAL.pdf Informacion General LEDS GP INCAE Espanol FINAL.pdf Powered by OpenEI ledsgp.org is built on the same platform as the popular Wikipedia site. Like Wikipedia, it is a "wiki" or website developed collaboratively by a community of users. Thanks to our unique relationship with OpenEI.org, you can add or edit most content on ledsgp.org. For more information about this

29

LAC Regional Platform Workshop Participant Package | Open Energy  

Open Energy Info (EERE)

Participant Package Participant Package Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us LAC Workshop Announcement Agenda Participant Package Accommodations Location & Transportation Insurance & Visas Participants Presentations Outcomes Report Links Contact Us General Information (Español) Participant Package.pdf Powered by OpenEI ledsgp.org is built on the same platform as the popular Wikipedia site. Like Wikipedia, it is a "wiki" or website developed collaboratively by a community of users. Thanks to our unique relationship with OpenEI.org, you can add or edit most content on ledsgp.org. For more information about this unique collaboration, contact us. View or edit this page on OpenEI.org.

30

DuPont Biofuels | Open Energy Information  

Open Energy Info (EERE)

DuPont Biofuels Jump to: navigation, search Name DuPont Biofuels Place Wilmington, Delaware Zip 19898 Product Biofuel technology development subsidiary of DuPont. Co-developing...

31

LEDSGP/about/Latin America and Caribbean Regional Platform/LAC Regional  

Open Energy Info (EERE)

LEDSGP/about/Latin America and Caribbean Regional Platform/LAC Regional LEDSGP/about/Latin America and Caribbean Regional Platform/LAC Regional Platform Workshop < LEDSGP‎ | about‎ | Latin America and Caribbean Regional Platform(Redirected from LEDSGP/LAC Regional Platform Workshop) Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us LAC Workshop Announcement Agenda Participant Package Accommodations Location & Transportation Insurance & Visas Participants Presentations Outcomes Report Links Contact Us Low Emissions Development Strategies (LEDS) Latin American and Caribbean Regional Platform Workshop 12-14 November 2012 Alajuela, Costa Rica, INCAE Business School The workshop is an initiative of the LEDS Global Partnership

32

Bird Banding  

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

Bird Banding Bird Banding Name: Matthew Location: N/A Country: N/A Date: N/A Question: I am researching why the US fish and wildlife agency bands ducks and what information is used to set hunting daily and possession limits. Replies: Matt, The USFW service has been doing this for decades to have statistical data on the population fluctuations of all birds. This information serves to warn when over hunting has taken a toll on a species or if a species is declining due to habitat loss or whatever. This information also indicates need for increased habitat areas as well as possible hunting restrictions. This organization has a formula for setting hunting limits based upon the data received from banding. It is important that all hunters return these bands for they are the ones who will suffer if the information is not there. Females of any species are the most important for reproduction and often they are protected over the males. This should explain the differences in what can be bagged.

33

Ractivit de l'anode et dsulfuration : effet du niveau de calcination du coke.  

E-Print Network (OSTI)

??Les proprits du coke et la performance des anodes sont affectes par le niveau de calcination du coke. Une densit de coke (VBD) leve implique (more)

Bergeron-Lagac, Charles-Luc

2012-01-01T23:59:59.000Z

34

Dominican Republic-Regional Programme for LAC: Support for the Preparation  

Open Energy Info (EERE)

Dominican Republic-Regional Programme for LAC: Support for the Preparation Dominican Republic-Regional Programme for LAC: Support for the Preparation of the National Climate Change Policy Jump to: navigation, search Name UNDP-Dominican Republic Regional Programme for LAC - Support for the preparation of the National Climate Change Policy Agency/Company /Organization United Nations Development Programme (UNDP) Sector Climate Focus Area People and Policy Topics Finance, Low emission development planning, -LEDS Country Dominican Republic Caribbean References UNDP - Latin America & the Caribbean[1] Contents 1 Program Overview 1.1 Program Focus 1.2 Environment and Sustainable Development 2 References Program Overview "Across Latin America and the Caribbean, UNDP helps countries build and share their own solutions to urgent development challenges, supporting

35

UNDP-Dominican Republic Regional Programme for LAC - Support for the  

Open Energy Info (EERE)

Dominican Republic Regional Programme for LAC - Support for the Dominican Republic Regional Programme for LAC - Support for the preparation of the National Climate Change Policy Jump to: navigation, search Name UNDP-Dominican Republic Regional Programme for LAC - Support for the preparation of the National Climate Change Policy Agency/Company /Organization United Nations Development Programme (UNDP) Sector Climate Focus Area People and Policy Topics Finance, Low emission development planning, -LEDS Country Dominican Republic Caribbean References UNDP - Latin America & the Caribbean[1] Contents 1 Program Overview 1.1 Program Focus 1.2 Environment and Sustainable Development 2 References Program Overview "Across Latin America and the Caribbean, UNDP helps countries build and share their own solutions to urgent development challenges, supporting

36

UNDP-Costa Rica Regional Programme for LAC - Preparation of Sectoral LEDs  

Open Energy Info (EERE)

Rica Regional Programme for LAC - Preparation of Sectoral LEDs Rica Regional Programme for LAC - Preparation of Sectoral LEDs for transport and agriculture Jump to: navigation, search Name UNDP-Costa Rica Regional Programme for LAC - Preparation of Sectoral LEDs for transport and agriculture Agency/Company /Organization United Nations Development Programme (UNDP) Sector Climate, Energy Focus Area Agriculture, Transportation Topics Low emission development planning, -LEDS Country Costa Rica Central America References UNDP - Latin America & the Caribbean[1] Contents 1 Program Overview 1.1 Program Focus 1.2 Environment and Sustainable Development 2 References Program Overview "Across Latin America and the Caribbean, UNDP helps countries build and share their own solutions to urgent development challenges, supporting

37

Costa Rica-Regional Programme for LAC: Preparation of Sectoral LEDs for  

Open Energy Info (EERE)

Costa Rica-Regional Programme for LAC: Preparation of Sectoral LEDs for Costa Rica-Regional Programme for LAC: Preparation of Sectoral LEDs for Transport and Agriculture Jump to: navigation, search Name UNDP-Costa Rica Regional Programme for LAC - Preparation of Sectoral LEDs for transport and agriculture Agency/Company /Organization United Nations Development Programme (UNDP) Sector Climate, Energy Focus Area Agriculture, Transportation Topics Low emission development planning, -LEDS Country Costa Rica Central America References UNDP - Latin America & the Caribbean[1] Contents 1 Program Overview 1.1 Program Focus 1.2 Environment and Sustainable Development 2 References Program Overview "Across Latin America and the Caribbean, UNDP helps countries build and share their own solutions to urgent development challenges, supporting

38

LEDSGP/about/Latin America and Caribbean Regional Platform/LAC Regional  

Open Energy Info (EERE)

LEDSGP/about/Latin America and Caribbean Regional Platform/LAC Regional LEDSGP/about/Latin America and Caribbean Regional Platform/LAC Regional Platform Workshop < LEDSGP‎ | about‎ | Latin America and Caribbean Regional Platform Jump to: navigation, search LEDSGP Logo.png Advancing climate-resilient low emission development around the world Home About Tools Expert Assistance Events Publications Join Us LAC Workshop Announcement Agenda Participant Package Accommodations Location & Transportation Insurance & Visas Participants Presentations Outcomes Report Links Contact Us Low Emissions Development Strategies (LEDS) Latin American and Caribbean Regional Platform Workshop 12-14 November 2012 Alajuela, Costa Rica, INCAE Business School The workshop is an initiative of the LEDS Global Partnership (http://openei.org/wiki/LEDSGP), founded to advance low emissions

39

Testing the FR I/BL Lac unifying model with HST observations  

E-Print Network (OSTI)

Hubble Space Telescope (HST) observations provide a novel way of testing unified models for FR I radio sources and BL Lac objects. The detection of extended dust discs in some radio galaxies provides information on their jet orientation. Given this, the strength of the compact nuclear sources of FR I and BL Lacs can be compared with model predictions. As a pilot project, we selected five radio galaxies which show extended nuclear discs in the HST images. The relative orientation of the projected radio-jets and of the extended nuclear discs indicates that they are not perpendicular, as the simplest geometrical model would suggest, but that they form an angle of ~ 20 - 40 degrees with the symmetry axis of the disc: a significant change of orientation occurs between the innermost AGN structure and the kpc-scale. Nevertheless, the discs appear to be useful indicators of the radio sources orientation since the angles formed by the disc axis and the jet with the line of sight differ by only ~ 10 - 20 degrees. At the center of each disc an unresolved nuclear source is present. We compared its luminosity with the optical core luminosity of BL Lacs selected for having similar host galaxy magnitude and extended radio luminosity. The BL Lac cores are between 2 E2 and 3 E5 times brighter than the corresponding radio galaxies ones. The FR I/BL Lac core luminosity ratio shows a suggestive correlation with the orientation of the radio galaxies with respect to the line of sight. The behavior of this ratio is quantitatively consistent with a scenario in which the emission in the FR I and BL Lac is dominated by the beamed radiation from a relativistic jet with Doppler factor ~ 5 - 10, thus supporting the basic features of the proposed unification schemes.

Alessandro Capetti; Annalisa Celotti

1998-11-25T23:59:59.000Z

40

A single mutation in the core domain of the lac repressor reduces leakiness  

E-Print Network (OSTI)

of allosteric control. Protein engineering has brought about LacI var- iants with altered inducibility: directed evolution yielded variants with 100-fold tighter affinity for IPTG that car- ried mutations in both the DNA and inducer binding domains [40... . Biochemistry 2008, 47:80588069. 39. Meinhardt S, Manley MW Jr, Becker NA, Hessman JA, Maher LJ 3rd, Swint-Kruse L: Novel insights from hybrid LacI/GalR proteins: family-wide functional attributes and biologically significant variation in transcription...

Gatti-Lafranconi, Pietro; Dijkman, Willem P; Devenish, Sean RA; Hollfelder, Florian

2013-07-08T23:59:59.000Z

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


41

Categorical Exclusion Determinations: Native American and Alaskan...  

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

Categorical Exclusion Determination Wisconsin-Tribe-Lac Du Flambeau Band of Lake Superior Chippewa Indians CX(s) Applied: B5.1 Date: 01212011 Location(s): Wisconsin...

42

Business Case Slide 5: DU Use Categories: Generic Aspects - 2  

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

DU Use Categories: Generic Aspects - 2 Production of DUO2 Virtually all potential DU uses require DUO2 Planned UDS product is DUO2DU3O8 Changes in UDS flowsheet to produce DUO2...

43

BAS DU SPECTRE ET GEOMETRIE DES VARIETES DE VOLUME INFINI.  

E-Print Network (OSTI)

??Cette thse tudie les varits non compactes dont le bas du spectre du Laplacien est une valeur propre isole. L'objectif gnral est de relier la (more)

Tapie, Samuel

44

DuPont Apollo | Open Energy Information  

Open Energy Info (EERE)

Apollo Apollo Jump to: navigation, search Name DuPont Apollo Place Hong Kong, Hong Kong Sector Solar Product Hong Kong-based thin-film PV module manufacturer that provides solar energy solutions by doing research and development on PV technology and system. References DuPont Apollo[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. DuPont Apollo is a company located in Hong Kong, Hong Kong . References ↑ "DuPont Apollo" Retrieved from "http://en.openei.org/w/index.php?title=DuPont_Apollo&oldid=344346" Categories: Clean Energy Organizations Companies Organizations Stubs What links here Related changes Special pages Printable version Permanent link Browse properties

45

Parsec-scale Magnetic-Field Structures in HEAO-1 BL Lacs  

E-Print Network (OSTI)

We present very long baseline interferometry polarization images of an X-ray selected sample of BL Lacertae objects belonging to the first High Energy Astronomy Observatory (HEAO-1) and the ROSAT-Green Bank (RGB) surveys. These are primarily high-energy-peaked BL Lacs (HBLs) and exhibit core-jet radio morphologies on pc-scales. They show moderately polarized jet components, similar to those of low-energy-peaked BL Lacs (LBLs). The fractional polarization in the unresolved cores of the HBLs is, on average, lower than in the LBLs, while the fractional polarizations in the pc-scale jets of HBLs and LBLs are comparable. However a difference is observed in the orientation of the inferred jet magnetic fields -- while LBL jets are well-known to preferentially exhibit transverse magnetic fields, the HBL jets tend to display longitudinal magnetic fields. Although a `spine-sheath' jet velocity structure, along with larger viewing angles for HBLs could produce the observed magnetic field configuration, differences in ot...

Kharb, P; Shastri, P

2007-01-01T23:59:59.000Z

46

Parsec-scale Magnetic-Field Structures in HEAO-1 BL Lacs  

E-Print Network (OSTI)

We present very long baseline interferometry polarization images of an X-ray selected sample of BL Lacertae objects belonging to the first High Energy Astronomy Observatory (HEAO-1) and the ROSAT-Green Bank (RGB) surveys. These are primarily high-energy-peaked BL Lacs (HBLs) and exhibit core-jet radio morphologies on pc-scales. They show moderately polarized jet components, similar to those of low-energy-peaked BL Lacs (LBLs). The fractional polarization in the unresolved cores of the HBLs is, on average, lower than in the LBLs, while the fractional polarizations in the pc-scale jets of HBLs and LBLs are comparable. However a difference is observed in the orientation of the inferred jet magnetic fields -- while LBL jets are well-known to preferentially exhibit transverse magnetic fields, the HBL jets tend to display longitudinal magnetic fields. Although a `spine-sheath' jet velocity structure, along with larger viewing angles for HBLs could produce the observed magnetic field configuration, differences in other properties of LBLs and HBLs, such as their total radio power, cannot be fully reconciled with the different-angle scenario alone. Instead it appears that LBLs and HBLs differ intrinsically, perhaps in the spin rates of their central black holes.

P. Kharb; D. Gabuzda; P. Shastri

2007-11-07T23:59:59.000Z

47

Mthode phnomnologique dans la philosophie du langage du cercle linguistique de Prague.  

E-Print Network (OSTI)

??Le terme structuralisme phnomnologique peut caractriser l'oeuvre du Cercle linguistique de Prague. Influencs au tout dbut par le formalisme et le fonctionnalisme russes (more)

Barkova, Iryna

2008-01-01T23:59:59.000Z

48

E. 1. DU PONT DE NEMOURS & COMPANY  

Office of Legacy Management (LM)

in the following paragraphs. In :q &. 13;1 I event that du Pontundertakes a power reactor development 0 I' bogram for the Commission, it is likely that additional work .&ill...

49

HL&P/Du Pont Cogeneration Project  

E-Print Network (OSTI)

The HL&P/Du Pont Cogeneration Project is an arrangement between Houston Lighting & Power Company and E. I. Du Pont de Nemours whereby the utility-owned cogeneration facility supplies a portion of the Du Pont process steam requirements. The facility consists of two cogeneration systems, each comprised of a natural gas fired GE 80 MW Frame 7EA, or equivalent, exhausting into a heat recovery steam generator (HRSG). Gas turhines are equipped with steam injection capability for power augmentation. Supplementary fireable HRSG's provide additional supply reliability for the steam host. Electricity from the project is delivered into HL&P's System through a new 138 KY substation. Such an arrangement offers Du Pont a significant cost saving opportunity as less efficient steam raising equipment is displaced. It also provides HL&P ratepayers with significant benefits, given the fuel efficiencies associated with cogeneration projects.

Vadie, H. H.

2013-06-06T23:59:59.000Z

50

By-products from DU Storage (Fluorine and Empty Cylinders)  

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

By-products from DU Storage By-products from DU Storage (Fluorine and Empty Cylinders) Potential applications involving by-products from DUF6 storage include fluorine applications...

51

DuPont | Open Energy Information  

Open Energy Info (EERE)

DuPont DuPont Jump to: navigation, search Name DuPont Place Wilmington, Delaware Zip 19898 Product US holding company; manufacturer of tedlar films used as a material for TPT backsheet in PV module production. Website http://www2.dupont.com/ Coordinates 42.866922°, -72.868494° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":42.866922,"lon":-72.868494,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

52

tude du dopage de catalyseurs de dshydrognation oxydante de l'thane et du propane.  

E-Print Network (OSTI)

??Les ractions de dshydrognation oxydante du propane et de l'thane ont t tudies respectivement sur des catalyseurs base d'oxydes alcalino-terreux (OAT) dops nodyme et (more)

Savova, Bistra

2009-01-01T23:59:59.000Z

53

STATEMENT OF CONSIDERATIONS REQUEST BY E. I. DuPONT de NEMOURS AND COMPANY (DuPONT) FOR  

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

DuPONT de NEMOURS AND COMPANY (DuPONT) FOR DuPONT de NEMOURS AND COMPANY (DuPONT) FOR AN ADVANCE WAIVER OF PATENT RIGHTS UNDER DOE COOPERATIVE AGREEMENT NO. GOVWORKS-70224 ENTITLED "INTEGRATED CORN BASED BIOREFINING"; W(A)-03-026; CH-1151 As set out in the attached waiver petition and in subsequent discuss3ions with DOE Patent Counsel, E. I. DuPont de Nemours and Company(DuPont) has requested an advanced waiver of domestic and foreign patent rights for all subject inventions made under the above- identified cooperative agreement by its employees and its subcontractors' tsmployees, regardless of tier, except inventions made by subcontractors eligible to retain title to inventions pursuant to P.L. 96-517, as amended, and National Laboratories. DuPont is leading a teaming arrangement including the National Renewable Energy

54

CX-004602: Categorical Exclusion Determination | Department of Energy  

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

2: Categorical Exclusion Determination 2: Categorical Exclusion Determination CX-004602: Categorical Exclusion Determination Chippewa Tribe of Minnesota on behalf of the Fond du Lac Band Renewable Energy Technologies on Government Buildings CX(s) Applied: B3.6, B5.1 Date: 01/08/2010 Location(s): Tower, Minnesota Office(s): Energy Efficiency and Renewable Energy The Fond du Lac Band of the Chippewa Tribe would utilize Energy Efficiency and Conservation Block Grant funds to install an 11 kilowatt photovoltaic system (approximately 54 205-Watt solar panels) on a planned Resource Management Building which would house the Fond du Lac Natural Resources Program, Environmental Program, Wildlife and Fisheries Program, the Forestry Program, and the Conservation Enforcement Program. There would also be a Tribal Court located in the building. The Band intends to apply

55

Business Case Slide 3: DU Uses R&D Program Foundation  

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

DU Uses R&D Program Foundation Previous Slide Next Slide Table of Contents DU Uses R&D Program Foundation Based on DU materials use "roadmap" developed by DOE and lab staff from...

56

Depleted Uranium (DU) Cermet Waste Package  

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

Package Package Depleted Uranium (DU) Cermet Waste Package The steel components of the waste package could be replaced with a uranium cermet. The cermet contains uranium dioxide particulates, which are embedded in steel. Cermets are made with outer layers of clean steel; thus, there is no radiation-contamination hazard in handling the waste packages. Because cermets are made of the same materials that would normally be found in the YM repository (uranium dioxide and steel), there are no chemical compatibility issues. From half to all of the DU inventory in the United States could be used for this application. Depleted Uranium Dioxide Steel Cermet Cross Section of a Depleted Uranium Dioxide Steel Cermet Follow the link below for more information on Cermets:

57

Business Case Slide 4: DU Use Categories: Generic Aspects - 1  

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

DU Use Categories: Generic Aspects - 1 High-volume uses Capitalize on density and chemical identity with fuel Uses are all in radiologically regulated applications Benefit Avoid...

58

DuPont Chemical Vapor Technical Report  

Science Conference Proceedings (OSTI)

DuPont Safety Resources was tasked with reviewing the current chemical vapor control practices and providing preventive recommendations on best commercial techniques to control worker exposures. The increased focus of the tank closure project to meet the 2024 Tri-Party Agreement (TPA) milestones has surfaced concerns among some CH2MHill employees and other interested parties. CH2MHill is committed to providing a safe working environment for employees and desires to safely manage the tank farm operations using appropriate control measures. To address worker concerns, CH2MHill has chartered a ''Chemical Vapors Project'' to integrate the activities of multiple CH2MHill project teams, and solicit the expertise of external resources, including an independent Industrial Hygiene expert panel, a communications consultant, and DuPont Safety Resources. Over a three-month time period, DuPont worked with CH2MHill ESH&Q, Industrial Hygiene, Engineering, and the independent expert panel to perform the assessment. The process included overview presentations, formal interviews, informal discussions, documentation review, and literature review. DuPont Safety Resources concluded that it is highly unlikely that workers in the tank farms are exposed to chemicals above established standards. Additionally, the conventional and radiological chemistry is understood, the inherent chemical hazards are known, and the risk associated with chemical vapor exposure is properly managed. The assessment highlighted management's commitment to addressing chemical vapor hazards and controlling the associated risks. Additionally, we found the Industrial Hygiene staff to be technically competent and well motivated. The tank characterization data resides in a comprehensive database containing the tank chemical compositions and relevant airborne concentrations.

MOORE, T.L.

2003-10-03T23:59:59.000Z

59

Banded electromagnetic stator core  

DOE Patents (OSTI)

A stator core for an electromagnetic pump includes a plurality of circumferentially adjoining groups of flat laminations disposed about a common centerline axis and collectively defining a central bore and a discontinuous outer perimeter, with adjacent groups diverging radially outwardly to form V-shaped gaps. An annular band surrounds the groups and is predeterminedly tensioned to clamp together the laminations, and has a predetermined flexibility in a radial direction to form substantially straight bridge sections between the adjacent groups. 5 figures.

Fanning, A.W.; Gonzales, A.A.; Patel, M.R.; Olich, E.E.

1994-04-05T23:59:59.000Z

60

CX-005091: Categorical Exclusion Determination | Department of Energy  

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

91: Categorical Exclusion Determination 91: Categorical Exclusion Determination CX-005091: Categorical Exclusion Determination Wisconsin-Tribe-Lac Du Flambeau Band of Lake Superior Chippewa Indians CX(s) Applied: B5.1 Date: 01/21/2011 Location(s): Wisconsin Office(s): Energy Efficiency and Renewable Energy Energy Efficiency and Conservation Block Grant Program. The Lac du Flambeau Band of Lake Superior Chippewa Indians proposes to install an approximate 27-ton, horizontal directional, closed-loop geothermal (ground-source heat pump) heating and cooling system for the Lac du Flambeau Tribal Natural Resources Complex. DOCUMENT(S) AVAILABLE FOR DOWNLOAD CX-005091_0.pdf More Documents & Publications CX-002225: Categorical Exclusion Determination CX-000095: Categorical Exclusion Determination CX-00009

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


61

Improving Repository Performance by Using DU Dioxide Fill  

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

DU Dioxide Fill DU Dioxide Fill Improving Repository Performance by Using DU Dioxide Fill Fills may improve repository performance by acting as sacrificial materials, which delay the degradation of SNF uranium dioxide. Because fill and SNF have the same chemical form of uranium (uranium dioxide), the DU dioxide in a repository is the only fill which has the same behavior as that of the SNF. In the natural environment, some uranium ore deposits have remained intact for very long periods of time. The outer parts of the ore deposit degrade while the inner parts of the deposit are protected. The same approach is proposed herein for protecting SNF. The application could use half or more of the DU inventory in the United States. Behavior of Uranium and Potential Behavior of a Waste Package with SNF and Fill

62

Building Media, Inc. (Du Pont) (Building America Retrofit Alliance) | Open  

Open Energy Info (EERE)

Media, Inc. (Du Pont) (Building America Retrofit Alliance) Media, Inc. (Du Pont) (Building America Retrofit Alliance) Jump to: navigation, search Name Building Media, Inc. (Du Pont) (Building America Retrofit Alliance) Place Wilmington, DE Website http://www.prweb.com/releases/ References Building America Retrofit Alliance Press Release[1] BMI Website[2] DuPont Website[3] Information About Partnership with NREL Partnership with NREL Yes Partnership Type Incubator Partnering Center within NREL Electricity Resources & Building Systems Integration LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! Building Media, Inc. (Du Pont) (Building America Retrofit Alliance) is a company located in Wilmington, DE. References ↑ "Building America Retrofit Alliance Press Release" ↑ "BMI Website"

63

Broad band waveguide spectrometer  

DOE Patents (OSTI)

A spectrometer for analyzing a sample of material utilizing a broad band source of electromagnetic radiation and a detector. The spectrometer employs a waveguide possessing an entry and an exit for the electromagnetic radiation emanating from the source. The waveguide further includes a surface between the entry and exit portions which permits interaction between the electromagnetic radiation passing through the wave guide and a sample material. A tapered portion forms a part of the entry of the wave guide and couples the electromagnetic radiation emanating from the source to the waveguide. The electromagnetic radiation passing from the exit of the waveguide is captured and directed to a detector for analysis.

Goldman, Don S. (Folsom, CA)

1995-01-01T23:59:59.000Z

64

A kpc-scale X-ray jet in the BL Lac source S5 2007+777  

E-Print Network (OSTI)

X-ray jets in AGN are commonly observed in FRII and FRI radio-galaxies, but rarely in BL Lacs, most probably due to their orientation close to the line of sight and the ensuing foreshortening effects. Only three BL Lacs are known so far to contain a kpc-scale X-ray jet. In this paper, we present the evidence for the existence of a fourth extended X-ray jet in the classical radio-selected source S5 2007+777, which for its hybrid FRI/II radio morphology has been classified as a HYMOR (HYbrid MOrphology Radio source). Our Chandra ACIS-S observations of this source revealed an X-ray counterpart to the 19"-long radio jet. Interestingly, the X-ray properties of the kpc-scale jet in S5 2007+777 are very similar to those observed in FRII jets. First, the X-ray morphology closely mirrors the radio one, with the X-rays being concentrated in the discrete radio knots. Second, the X-ray continuum of the jet/brightest knot is described by a very hard power law, with photon index Gamma_x~1, although the uncertainties are large. Third, the optical upper limit from archival HST data implies a concave radio-to-X-ray SED. If the X-ray emission is attributed to IC/CMB with equipartition, strong beaming (delta=13) is required, implying a very large scale (Mpc) jet. The beaming requirement can be somewhat relaxed assuming a magnetic field lower than equipartition. Alternatively, synchrotron emission from a second population of very high-energy electrons is viable. Comparison to other HYMOR jets detected with Chandra is discussed, as well as general implications for the origin of the FRI/II division.

Rita M. Sambruna; Davide Donato; C. C. Cheung; F. Tavecchio; L. Maraschi

2008-05-07T23:59:59.000Z

65

DuPont Energy Breakout Initiative  

E-Print Network (OSTI)

In February 2005, DuPont launched the Energy Breakout initiative to accelerate improvement in energy efficiency and reduce energy costs in its US operations. This comprehensive program, led by the Senior Vice President of Operations, resulted in 40 manufacturing plants setting specific targets for energy reductions; the establishment of site energy champions to lead programs to achieve those savings; and the creation of an Energy Center of Competency to provide tools, training and expertise to ensure success. This paper describes the various elements of the Energy Breakout initiative and summarizes the results of the effort.

Bailey, W. F.

2007-01-01T23:59:59.000Z

66

VIN# JTDKN3DU5A0006063 Vehicle Specifications  

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

DU5A0006063 Vehicle Specifications Engine: 1.8 L 4-cylinder Electric Motor: 60 kW Battery: NiMH Seatbelt Positions: Five Payload: 885 lbs Features: Regenerative braking Traction...

67

VIN# JTDKN3DU2A5010462 Vehicle Specifications  

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

DU2A5010462 Vehicle Specifications Engine: 1.8 L 4-cylinder Electric Motor: 60 kW Battery: NiMH Seatbelt Positions: Five Payload: 885 lbs Features: Regenerative braking Traction...

68

THSE PRSENTE L'UNIVERSIT DU QUBEC CHICOUTIMI  

E-Print Network (OSTI)

quantifier les principaux processus de solidification magmatiques à l'oeuvre dans la genèse des basaltes de type "pipe" sous le rift du Mauna Ulu. Le mag

Paris-Sud XI, Université de

69

Mise en service du dtecteur a pixels de l'exprience ATLAS auprs du LHC et tude du canal ttH, H -> bb pour la recherche du boson de Higgs.  

E-Print Network (OSTI)

??L'ajustement des differentes mesures electrofaibles dans le cadre du Modele Standard privilegie un boson de Higgs de faible masse egale a mH = 90 +36 (more)

Aad, G.

2009-01-01T23:59:59.000Z

70

Familles de mesures au bord et bas du spectre.  

E-Print Network (OSTI)

??Dans ce memoire, j'expose la theorie des familles equivariantes de mesures sur le bord a l'in?ni du revetement universel d'une variete compacte a courbure strictement (more)

Mohsen, Olivier

2007-01-01T23:59:59.000Z

71

Modlisation et simulation numrique du colmatage lchelle du sous-canal dans les gnrateurs de vapeur.  

E-Print Network (OSTI)

??Ce travail de thse s'inscrit dans le cadre d'un projet de recherche industriel visant amliorer les mthodes et les outils de simulation du comportement (more)

Prusek, Thomas

2012-01-01T23:59:59.000Z

72

December 14, 2009, Meeting with DOE - DuPonts Safety Model and Sustainability Initiatives  

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

Overview of DuPont's Safety Model and Sustainability Initiatives Overview of DuPont's Safety Model and Sustainability Initiatives Meeting with DOE December 14, 2009; 2-4 pm Agenda Safety Philosophy Culture, Core Values, and Key Elements DuPont's Implementation Strategy Training Resources Safety Structure and Organization Benefits and Stumbling Blocks Implementation Suggestions and Strategies Evolving into a new, safer, and more sustainable culture DuPont's Sustainability Program Overview of DuPont's Sustainability Program and the Link between Safety and Sustainability Topics to Consider - DuPont Safety Model Presentation to DOE Undersecretaries - December 14, 2009 DuPont Safety Model * DuPont's safety model serves as a core value, is fully integrated into the company's culture, is strongly endorsed by leadership and is considered essential to company

73

Business Case Slide 2: Drivers for DU Use R&D  

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

Drivers for DU Use R&D Previous Slide Next Slide Table of Contents Drivers for DU Use R&D Compliance agreement with Ohio EPA Still in force; requires R&D effort and annual report...

74

Modlisation du comportement dynamique coupl rotor-stator d'une turbine en situation accidentelle.  

E-Print Network (OSTI)

??Pour les groupes turbo-alternateurs du parc nuclaire franais, la situation accidentelle de rfrence lors du dimensionnement est dfinie par le dpart d'une ailette terminale des (more)

Roques, Sbastien

2007-01-01T23:59:59.000Z

75

Henan Mingdu Wind Power Co Ltd aka He Nan Ming Du Feng Dian Limited...  

Open Energy Info (EERE)

Henan Mingdu Wind Power Co Ltd aka He Nan Ming Du Feng Dian Limited Company Jump to: navigation, search Name Henan Mingdu Wind Power Co Ltd (aka He Nan Ming Du Feng Dian Limited...

76

FUSE Observations of Interstellar and Intergalactic Absorption Toward the X-ray Bright BL Lac Object Mrk 421  

E-Print Network (OSTI)

High-quality Far-Ultraviolet Spectroscopic Explorer (FUSE) observations at 20 km /s resolution of interstellar and intergalactic absorption from 910 to 1187 A are presented for the X-ray bright BL Lac object Mrk 421. In this study we consider the O VI absorption between -140 to 165 km /s and its relationship to the lower ionization absorption and to the strong absorption produced by O VII and O VIII at X-ray wavelengths. The O VI absorption extending from -140 to 60 km /s is associated with strong low ionization gas absorption and originates in the Galactic thick disk / halo. This O VI appears to be produced by a combination of processes, including conductive interfaces between warm and hot gas and possibly cooling Galactic Fountain gas and hot halo gas bubbles. The O VI absorption extending from 60 to 165 km /s has unusual ionization properties in that there is very little associated low ionization absorption, with the exception of C III. This absorption is not observed toward two foreground halo stars, implying that it occurs in gas more distant than 3.5 kpc from the Galactic disk. Over the 60 to 165 km/s velocity range, O VI and C III absorption have the same kinematic behavior. N(O VI)/N(C III) = 10+/-3 over the 60 to 120 km/s velocity range. Given the association of O VI with C III, it is unlikely that the high velocity O VI co-exists with the hotter gas responsible for the O VII and O VIII absorption. The O VI positive velocity absorption wing might be tracing cooler gas entrained in a hot Galactic Fountain outflow. The O VII and O VIII absorption observed by Chandra and XMM-Newton may trace the hot gas in a highly extended (~100 kpc) Galactic corona or hot gas in the Local Group.

B. D. Savage; B. P. Wakker; A. J. Fox; K. R. Sembach

2004-12-15T23:59:59.000Z

77

Forum des Jeuns du Gabon | Open Energy Information  

Open Energy Info (EERE)

des Jeuns du Gabon des Jeuns du Gabon Jump to: navigation, search Name Forum des Jeuns du Gabon Address Libreville-GABON, derrirère la Cité Damas Place Gabon Coordinates 0.390841°, 9.453644° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":0.390841,"lon":9.453644,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

78

Village of Prairie Du Sac, Wisconsin (Utility Company) | Open Energy  

Open Energy Info (EERE)

Du Sac, Wisconsin (Utility Company) Du Sac, Wisconsin (Utility Company) Jump to: navigation, search Name Village of Prairie Du Sac Place Wisconsin Utility Id 15312 Utility Location Yes Ownership M NERC Location MRO NERC MRO Yes ISO MISO Yes Activity Distribution Yes References EIA Form EIA-861 Final Data File for 2010 - File1_a[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Utility Rate Schedules Grid-background.png Cp-1 Small Power Service Industrial Cp-1 Small Power Service with Parallel Generation(20kW or less) Industrial Cp-1 TOD Small Power Optional Time-of-Day Service with Parallel Generation(20kW or less) Industrial Cp-1 TOD Small Power Optional Time-of-Day Service Industrial Cp-2 Large Power Time-of-Day Service Industrial

79

CX-003491: Categorical Exclusion Determination  

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

Fond du Lac Hydroelectric ProjectCX(s) Applied: B5.1Date: 08/17/2010Location(s): Fond du Lac, MinnesotaOffice(s): Energy Efficiency and Renewable Energy, Golden Field Office

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


82

Sources, production et transfert du carbone organique dissous dans les bassins versants lmentaires sur socle : apports des isotopes stables du carbone.  

E-Print Network (OSTI)

??En dpit de son importance pour les cosystmes aquatiques, l'origine et les mcanismes de production du carbone organique dissous (COD) sont toujours sujets discussion. (more)

Lambert, Thibault

2013-01-01T23:59:59.000Z

83

Broad-band beam buncher  

DOE Patents (OSTI)

A broad-band beam buncher is disclosed, comprising an evacuated housing, an electron gun therein for producing an electron beam, a buncher cavity having entrance and exit openings through which the beam is directed, grids across such openings, a source providing a positive DC voltage between the cavity and the electron gun, a drift tube through which the electron beam travels in passing through such cavity, grids across the ends of such drift tube, gaps being provided between the drift tube grids and the entrance and exit grids, a modulator for supplying an ultrahigh frequency modulating signal to the drift tube for producing velocity modulation of the electrons in the beam, a drift space in the housing through which the velocity modulated electron beam travels and in which the beam is bunched, and a discharge opening from such drift tube and having a grid across such opening through which the bunched electron beam is discharged into an accelerator or the like. The buncher cavity and the drift tube may be arranged to constitute an extension of a coaxial transmission line which is employed to deliver the modulating signal from a signal source. The extended transmission line may be terminated in its characteristic impedance to afford a broad-band response and the device as a whole designed to effect broad-band beam coupling, so as to minimize variations of the output across the response band.

Goldberg, David A. (Walnut Creek, CA); Flood, William S. (Berkeley, CA); Arthur, Allan A. (Martinez, CA); Voelker, Ferdinand (Orinda, CA)

1986-01-01T23:59:59.000Z

84

UNIVERSIT PARIS OUEST NANTERRE LA DFENSE cole doctorale Milieux, cultures et socits du pass et du prsent  

E-Print Network (OSTI)

AHEZ, Ayuntamiento, Indios, Caja 1, Exp. 06. 24 John LYNCH, Las revoluciones hispanoamericanas, 1808 tableau de l'Amérique coloniale à la fin du XVIIIième siècle, John Lynch cite ainsi l'exemple de la vive

Paris-Sud XI, Université de

85

BNL | S-band Linac  

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

S-band Linac S-band Linac Some experiments at the ATF require higher energies than what is available from the photoinjector. We use two traveling wave linac structures, known as 'SLAC sections' (from the famous 2-mile SLAC linac). Each section provides an acceleration given by: Energy gain (in MeV) = 10.8*SQRT(Power in MW)-39.5*Current(in amps) The current to be used is an equivalent steady state current. The microwave drive power, at a frequency of 2856 MHz, is provided by a single XK5 klystron tube (the old SLAC klystron). This tube can provide up to 25 MW. The ATF modulator can provide the XK5 klystron with high voltage for about 3 microseconds. This 3 microsecond pulse is called the macropulse. The repetition rate for the macropulses is from 1 to 6 per second. Within each

86

Energy Secretary Chu to Tour DuPont Clean Energy Innovation Facilities |  

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

DuPont Clean Energy Innovation DuPont Clean Energy Innovation Facilities Energy Secretary Chu to Tour DuPont Clean Energy Innovation Facilities May 22, 2012 - 5:13pm Addthis WASHINGTON - Tomorrow, Wednesday, May 23, 2012, U.S. Energy Secretary Steven Chu will visit DuPont in Wilmington, Delaware, where he will tour the company's clean energy research and development facilities, including innovative work on advanced biofuels. Secretary Chu will highlight how companies like DuPont are helping the United States lead the global race for clean energy technologies and reduce our dependence on foreign oil. Following the tour, Secretary Chu will participate in a media availability with DuPont's Chief Innovation Officer Tom Connelly and Chief Science & Technology Officer Doug Muzyka. WHEN:

87

Henan Mingdu Wind Power Co Ltd aka He Nan Ming Du Feng Dian Limited Company  

Open Energy Info (EERE)

Henan Mingdu Wind Power Co Ltd aka He Nan Ming Du Feng Dian Limited Company Henan Mingdu Wind Power Co Ltd aka He Nan Ming Du Feng Dian Limited Company Jump to: navigation, search Name Henan Mingdu Wind Power Co Ltd (aka He Nan Ming Du Feng Dian Limited Company) Place Jiaozuo, Henan Province, China Sector Wind energy Product Wind turbine blades provider. References Henan Mingdu Wind Power Co Ltd (aka He Nan Ming Du Feng Dian Limited Company)[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Henan Mingdu Wind Power Co Ltd (aka He Nan Ming Du Feng Dian Limited Company) is a company located in Jiaozuo, Henan Province, China . References ↑ "[ Henan Mingdu Wind Power Co Ltd (aka He Nan Ming Du Feng Dian Limited Company)]" Retrieved from

88

Repository Applications: Potential Benefits of Using Depleted Uranium (DU)  

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

Repository Applications Repository Applications Repository Applications: Potential Benefits of Using Depleted Uranium (DU) in a Geological Repository The United States is investigating the Yucca Mountain (YM) site in Nevada for the disposal of radioactive spent nuclear fuel (SNF)—the primary waste from nuclear power plants. The SNF would be packaged and then emplaced 200 to 300 m underground in parallel disposal tunnels. The repository isolates the SNF from the biosphere until the radionuclides decay to safe levels. DU may improve the performance of geological repositories for disposal of SNF via three mechanisms: Radiation shielding for waste packages to protect workers Lowering the potential for long-term nuclear criticality in the repository Reducing the potential for releases of radionuclides from the SNF

89

MHK Projects/Pointe du Bois | Open Energy Information  

Open Energy Info (EERE)

du Bois du Bois < MHK Projects Jump to: navigation, search << Return to the MHK database homepage Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":5,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"500px","height":"350px","centre":false,"title":"","label":"","icon":"File:Aquamarine-marker.png","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":50.2969,"lon":-95.5485,"alt":0,"address":"","icon":"http:\/\/prod-http-80-800498448.us-east-1.elb.amazonaws.com\/w\/images\/7\/74\/Aquamarine-marker.png","group":"","inlineLabel":"","visitedicon":""}]}

90

DuPont Danisco Cellulosic Ethanol | Open Energy Information  

Open Energy Info (EERE)

Danisco Cellulosic Ethanol Danisco Cellulosic Ethanol Jump to: navigation, search Name DuPont Danisco Cellulosic Ethanol Place Itasca, Illinois Zip 60143 Product DuPont Danisco Cellulosic Ethanol is a joint venture to develop technologies for cellulosic ethanol. Coordinates 32.1666°, -97.154369° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":32.1666,"lon":-97.154369,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

91

DuPage County, Illinois: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

DuPage County, Illinois: Energy Resources DuPage County, Illinois: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 41.8243831°, -88.0900762° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":41.8243831,"lon":-88.0900762,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

92

Studying the Effect of Carbon on DU-Mo Foil Fabrication for the ...  

Science Conference Proceedings (OSTI)

In support of this program, efforts are ongoing to develop and validate a monolithic depleted uranium molybdenum (DU-Mo) foil fabrication process adaptable for...

93

UNE DESCRIPTION LINGUISTIQUE DU CREOLE GUADELOUPEEN DANS LA PERSPECTIVE DE LA GENERATION AUTOMATIQUE D'ENONCES.  

E-Print Network (OSTI)

??Le but de cette thse est de proposer une description du crole guadeloupen dans la perspective de la gnration automatique d'noncs en crole, partir (more)

Delumeau, Fabrice

2006-01-01T23:59:59.000Z

94

Der ungelehrte Bchernarr Ich sehe wohl, was du willst, aber das Mittel, wo-  

E-Print Network (OSTI)

Hirten ihren Durst aus diesen heiligen Quellen löschen. Doch wie unverschämt du auch sonst immer sein

Wagner, Stephan

95

THORIE DU DISCOURS ET PHILOSOPHIE MORALE MARIE-ANNE PAVEAU  

E-Print Network (OSTI)

) Introduction Peut-on dire n'importe quoi ? ? cette question la linguistique n'a pas de réponse homogène : tout éthique, la linguistique répondra que ce n'est pas son domaine. Il me semble cependant que les sciences du théoriques et épistémologiques de l'intégration de la dimension morale à l'analyse linguistique des discours

96

Agronomie (Synthse) Approche l'chelle du systme racinaire  

E-Print Network (OSTI)

Agronomie (Synthèse) Approche à l'échelle du système racinaire de l'absorption hydro que nous présentons est de discuter de la fonction d'absorption hydro-minérale considé- rée à l research still has to be carred out, eg the concept of plant mineral requirements has not yet been fully

Recanati, Catherine

97

Universite Paris 7 Institut de Physique du Globe de Paris  

E-Print Network (OSTI)

, Victoria). Le code dispose d'un module de visualisation avanc´e (DMFI), qui sera d´ecrit `a la section 1 polarity, thus leading to an oscillatory alpha-omega dynamo action. In the present study the omega effect temps de la di- polarit´e du champ magn´etique (par exemple Smirnov et Tarduno, 2004), et de la fr´equence

Aubert, Julien

98

ANNUAIRE DU 1er CYCLE 2011-2012  

E-Print Network (OSTI)

Résumé : Mots-clés : DC/DC SI MIMO, MPPT, générateur piézoélectrique, cellule photovoltaïque, batterie MIMO) associé à un circuit de recherche du point de puissance maximal (MPPT) très basse consommation, MPPT, piezoelectric generator, photovoltaic cell, LIPON battery, WSN Energy supply of embedded systems

Québec, Université du

99

octobre 2005 : le nord du Pakistan subit un violent  

E-Print Network (OSTI)

Editoria octobre 2005 : le nord du Pakistan subit un violent séisme suivi de cen- taines de'une vingtaine de ces hélico- ptères indispensables pour sauver les populations civiles. Mais le Pakistan, par Turquie ou au Pakistan1 . > Dans d'autres pays, l'importance donnée aux « canons » est davantage à usage

Paris-Sud XI, Université de

100

UT-TRIBE-NORTHWESTERN BAND OF SHOSHONE  

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

U.S. Department of Energy Categorical Exclusion Determination Form Program or Field Office: Energy Efficiency and Conservation Block Grant Program Project Title UT-TRIBE-NORTHWESTERN BAND OF SHOSHONE Location: Tribe UT-TRIBE- NORTHWESTERN BAND OF SHOSHONE UT American Recovery and Reinvestment Act: Proposed Action or Project Description The Northwestern Band of Shoshone Nation of Utah proposes to perform energy efficiency improvements

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


101

WIDE BAND REGENERATIVE FREQUENCY DIVIDER AND MULTIPLIER  

DOE Patents (OSTI)

A regenerative frequency divider and multiplier having wide band input characteristics is presented. The circuit produces output oscillations having frequencies related by a fixed ratio to input oscillations over a wide band of frequencies. In accomplishing this end, the divider-multiplier includes a wide band input circuit coupled by mixer means to a wide band output circuit having a pass band related by a fixed ratio to that of the input circuit. A regenerative feedback circuit derives a fixed frequency ratio feedback signal from the output circuit and applies same to the mixer means in proper phase relation to sustain fixed frequency ratio oscillations in the output circuit.

Laine, E.F.

1959-11-17T23:59:59.000Z

102

Laboratoire Langues, Littratures, Linguistique des Universits d'Angers et du Maine (3L.AM) -  

E-Print Network (OSTI)

Laboratoire Langues, Littératures, Linguistique des Universités d'Angers et du Maine (3L.AM) - EA n Laboratoire Langues, Littératures, Linguistique des universités d'Angers et du Maine (Labo 3L.AM), ?quipe d

Di Girolami, Cristina

103

DuPont Technology Breaks Away From Glass | Department of Energy  

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

DuPont Technology Breaks Away From Glass DuPont Technology Breaks Away From Glass DuPont Technology Breaks Away From Glass April 22, 2010 - 4:20pm Addthis Delaware-based DuPont is working to develop ultra-thin moisture protective films for photovoltaic panels - so thin they're about 1,000 times thinner than a human hair. DuPont is working on new photovoltaic technology that will let manufacturers of copper indium gallium selenide, or CIGS, solar cells and organic light emitting diodes, or OLED, displays protect products with thin layers of ceramic and polymer material instead of glass. These ultra-thin protective films could help prevent deterioration from moisture. Because of their potential to reduce the cost of producing solar energy, "thin-film PV modules are projected to be the fastest-growing segment of

104

DuPont Technology Breaks Away From Glass | Department of Energy  

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

DuPont Technology Breaks Away From Glass DuPont Technology Breaks Away From Glass DuPont Technology Breaks Away From Glass April 22, 2010 - 4:20pm Addthis Delaware-based DuPont is working to develop ultra-thin moisture protective films for photovoltaic panels - so thin they're about 1,000 times thinner than a human hair. DuPont is working on new photovoltaic technology that will let manufacturers of copper indium gallium selenide, or CIGS, solar cells and organic light emitting diodes, or OLED, displays protect products with thin layers of ceramic and polymer material instead of glass. These ultra-thin protective films could help prevent deterioration from moisture. Because of their potential to reduce the cost of producing solar energy, "thin-film PV modules are projected to be the fastest-growing segment of

105

Origin of Precipitation and Dynamic Organization in Wavelike Precipitation Bands  

Science Conference Proceedings (OSTI)

Wavelike parallel precipitation bands, embedded in a layer of cirrus clouds, were studied with a vertically pointing millimetric Doppler radar. Their mean dimensions were 17 km between bands, a 50 km band length and a 6 km band width. Their ...

Richard Auria; Bernard Campistron

1987-11-01T23:59:59.000Z

106

X-BAND KLYSTRON DEVELOPMENT AT SLAC  

Science Conference Proceedings (OSTI)

The development of X-band klystrons at SLAC originated with the idea of building an X-band Linear Collider in the late 1980's. Since then much effort has been expended in developing a reliable X-band Power source capable of delivering >50 MW RF power in pulse widths >1.5 {micro}s. I will report on some of the technical issues and design strategies which have led to the current SLAC klystron designs.

Vlieks, Arnold E.; /SLAC

2009-08-03T23:59:59.000Z

107

Possible chiral bands in {sup 194}Tl  

Science Conference Proceedings (OSTI)

High spin states in {sup 194}Tl, excited through the {sup 181}Ta({sup 18}O,5n) fusion evaporation reaction, were studied using the AFRODITE array at iThemba LABS. Candidate chiral bands built on the {pi}h{sub 9/2} x {nu}i{sub 13/2}{sup 1} configuration were found. Furthermore these bands were observed through a band crossing caused by the excitation of a {nu}i{sub 13/2} pair. Above the band crossing the excitation energies remain close, suggesting that chirality may persist for the four quasiparticle configuration too.

Masiteng, P. L.; Ramashidzha, T. M.; Maliage, S. M.; Sharpey-Schafer, J. F.; Vymers, P. A. [iThemba LABS, P.O Box 722, 7129 (South Africa); University of the Western Cape, Private Bag X17, 7535 Bellville (South Africa); Lawrie, E. A.; Lawrie, J. J.; Bark, R. A.; Mullins, S. M.; Murray, S. H. T. [iThemba LABS, P.O Box 722, 7129 (South Africa); Kau, J.; Komati, F. [iThemba LABS, P.O Box 722, 7129 (South Africa); University of the North West, Private Bag X2046, 2735 Mafikeng (South Africa); Lindsay, R. [University of the Western Cape, Private Bag X17, 7535 Bellville (South Africa); Matamba, I. [University of Venda for Science and Technology, Thohoyandou (South Africa); Mutshena, P. [iThemba LABS, P.O Box 722, 7129 (South Africa); University of Venda for Science and Technology, Thohoyandou (South Africa); Zhang, Y. [iThemba LABS, P.O Box 722, 7129 (South Africa); University of Cape Town, Private Bag, 7701 Rondebosch (South Africa)

2011-10-28T23:59:59.000Z

108

Energy Efficiency and Conservation Block Grant Program  

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

Fond du Lac Band Fond du Lac Band Renewable Energy Technologies on Government Buildings The American Recovery and Reinvestment Act of 2009, Public Law 111 -5, appropriates funding for the Department of Energy (DOE) to issue/award fonnula-based grants to states, U.S . territories, units of local government, and Indian tribes under the Energy Efficiency and Conservation Block Grant (EECBG) Program. DOE's authorization for this program is set forth in Title V, Subtitle E, of the Energy Independence and Security Act (EISA) of2007. This CX detennination is applicable to DOE elements reviewing and awarding fonnula- based and competitive grants under the EECBG Program, and includes, but is not limited to, EECBG Program activities under the purview of DOE-HQ Energy Efficiency and Renewable Energy, DOE Golden Field Office,

109

N"I. L-S- Rad. Mat. DU  

Office of Legacy Management (LM)

N"I. L-S- N"I. L-S- Rad. Mat. DU DU (UF4) Enr. U. Norm. U Thorium 3/4 Ti Alloy Subtotals Commercial/ (1958-1971) TOTALS EXHIBIT 3 RADIOACTIVE MATERIAL PROCESSED AT NL-ALBANY PLANT, 1958-1982: GROSS SUMMARY OF INFORMATION FROM NUCLEAR MATERIAL TRANSACTION REPORTS (DOE/NRC Form 741 and Predecessor Forms) Material Net Weight (Pounds) DOE-Owned Canadian Supplied L/ Gov.-owned 5,660,914.3 0 2,469,268.2 100,686.l 7.7 57,358.Z 336,754 38,090.4 0 1,813 0 8,328,130.2 336,761.7 .8,328,130.2 336,761.7 2,603,763 11,268,654.9 77% Commercial (1971-1982) 1,300,339 235,636 0 0 0 1,535,975 Total 6,961,252.3 2,704,904.2 100,693.8 394,112.z 38,090.4 1,813 10,200,866.9 Gov. as % Of Total 21 81% 91 100 100 100 1,067,788 1,067,788 Z L/ Includes DOE, AEC, and ERDA. 2.1

110

Soci t d exploitation du parc olien de Mont d H z cques SARL | Open Energy  

Open Energy Info (EERE)

Soci t d exploitation du parc olien de Mont d H z cques SARL Soci t d exploitation du parc olien de Mont d H z cques SARL Jump to: navigation, search Name Société d'exploitation du parc éolien de Mont d'Hézècques SARL Place Madrid, Spain Sector Wind energy Product Special purpose vehicle for French wind farm project development. References Société d'exploitation du parc éolien de Mont d'Hézècques SARL[1] LinkedIn Connections CrunchBase Profile No CrunchBase profile. Create one now! This article is a stub. You can help OpenEI by expanding it. Société d'exploitation du parc éolien de Mont d'Hézècques SARL is a company located in Madrid, Spain . References ↑ "[ Société d'exploitation du parc éolien de Mont d'Hézècques SARL]" Retrieved from "http://en.openei.org/w/index.php?title=Soci_t_d_exploitation_du_parc_olien_de_Mont_d_H_z_cques_SARL&oldid=351211

111

Apparatus for loading a band saw blade  

DOE Patents (OSTI)

A band saw blade is loaded between pairs of guide wheels upon tensioning the blade by guiding the blade between pairs of spaced guide plates which define converging slots that converge toward the guide wheels. The approach is particularly useful in loading blades on underwater band saw machines used to cut radioactive materials. 2 figs.

Reeves, S.R.

1990-03-20T23:59:59.000Z

112

Apparatus for loading a band saw blade  

DOE Patents (OSTI)

A band saw blade is loaded between pairs of guide wheels upon tensioning the blade by guiding the blade between pairs of spaced guide plates which define converging slots that converge toward the guide wheels. The approach is particularly useful in loading blades on underwater band saw machines used to cut radioactive materials.

Reeves, Steven R. (49 Williams Ave., West Valley, NY 14171)

1990-01-01T23:59:59.000Z

113

Manhattan Project: DuPont and Hanford, Hanford Engineer Works, 1942  

Office of Scientific and Technical Information (OSTI)

The president of DuPont, Walter Carpenter, with Generals Levin H. Campbell, Everett Hughes, and Charles T. Harris. DUPONT AND HANFORD The president of DuPont, Walter Carpenter, with Generals Levin H. Campbell, Everett Hughes, and Charles T. Harris. DUPONT AND HANFORD (Hanford Engineer Works, 1942) Events > The Plutonium Path to the Bomb, 1942-1944 Production Reactor (Pile) Design, 1942 DuPont and Hanford, 1942 CP-1 Goes Critical, December 2, 1942 Seaborg and Plutonium Chemistry, 1942-1944 Final Reactor Design and X-10, 1942-1943 Hanford Becomes Operational, 1943-1944 The scientists of the Met Lab had the technical expertise to design a production pile, but construction and management on an industrial scale required an outside contractor. The DuPont Corporation was an ideal candidate, but the giant chemical firm was hesitant to join the project due to concern over accusations that it had profiteered during World War I. On October 3, 1942, DuPont agreed to design and build the chemical separation plant for the production pile facility then planned for Oak Ridge. Leslie Groves tried to entice further DuPont participation by having the firm prepare an appraisal of the pile (reactor) project and by placing three DuPont staff members on the Lewis Committee. DuPont ultimately agreed to become the primary contractor for plutonium-related work, but because of continuing sensitivity about its public image its contract called for a total payment of only dollar over actual costs. In addition, DuPont vowed to stay out of the bomb business after the war and offered all patents to the United States government.

114

Longwave Band-By-Band Cloud Radiative Effect and Its Application in GCM Evaluation  

Science Conference Proceedings (OSTI)

The cloud radiative effect (CRE) of each longwave (LW) absorption band of a GCMs radiation code is uniquely valuable for GCM evaluation because 1) comparing band-by-band CRE avoids the compensating biases in the broadband CRE comparison and 2) ...

Xianglei Huang; Jason N. S. Cole; Fei He; Gerald L. Potter; Lazaros Oreopoulos; Dongmin Lee; Max Suarez; Norman G. Loeb

2013-01-01T23:59:59.000Z

115

New Orleans brass band traditions and popular music : elements of style in the music of mama digdown's brass band and youngblood brass band.  

E-Print Network (OSTI)

?? This is research on the New Orleans Brass Band tradition. How popular music has influenced the bands repertoire and the style of music has (more)

Driscoll, Matthew Thomas

2012-01-01T23:59:59.000Z

116

Forming 6061 Al HIP-Clad DU10Mo Monolithic Fuel Plates  

Science Conference Proceedings (OSTI)

Small scale trials with multi-layer 6061 Al HIP-clad DU10Mo (depleted uranium), co-rolled with Zr, have been performed. Important results include springback...

117

Cours de premire anne de Psychologie dans le cadre du BA pluridisciplinaire Linguistique-Psychologie  

E-Print Network (OSTI)

Cours de première année de Psychologie dans le cadre du BA pluridisciplinaire Linguistique-Psychologie 2012-2013 Les étudiants de linguistique (branche A) choisissant comme branche B Psychologie ­ option

Loewith, Robbie

118

DOE - Office of Legacy Management -- E I Du Pont Grasselli Plant - OH 03  

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

E I Du Pont Grasselli Plant - OH 03 E I Du Pont Grasselli Plant - OH 03 FUSRAP Considered Sites Site: E.I. Du Pont, Grasselli Plant (OH.03 ) Eliminated from consideration under FUSRAP Designated Name: Not Designated Alternate Name: Grasselli Laboratories Standard Oil Company of Ohio OH.03-1 OH.03-2 Location: 3092 Broadway Avenue , Cleveland , Ohio OH.03-4 Evaluation Year: 1985 OH.03-3 Site Operations: Tested processes for jacketing uranium slugs with zinc, aluminum, silicon and brass in the 1940s OH.03-5 OH.03-6 Site Disposition: Eliminated - Radiation levels below criteria OH.03-3 Radioactive Materials Handled: Yes Primary Radioactive Materials Handled: Uranium OH.03-1 Radiological Survey(s): Yes OH.03-4 Site Status: Eliminated from consideration under FUSRAP Also see Documents Related to E.I. Du Pont, Grasselli Plant

119

Du you any one can comment on where to study and how to acquire...  

Open Energy Info (EERE)

Du you any one can comment on where to study and how to acquire the LEED CERTIFICATION FOR INDIVIDUALS & BUILDINGS? Home > Groups > OpenEI Community Central LEED GA LEED AP - BD &...

120

Observations with Moored Acoustic Doppler Current Profilers in the Convection Regime in the Golfe du Lion  

Science Conference Proceedings (OSTI)

In the Golfe du Lion, south of France, favorable conditions for deep winter convection exist and were documented by the MEDOC experiments during 196975. A renewed investigation of that regime with upward-looking moored acoustic Doppler current ...

Friedrich Schott; Kevin D. Leaman

1991-04-01T23:59:59.000Z

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


121

Optimisation nergtique des procds : application la distillation atmosphrique du ptrole.  

E-Print Network (OSTI)

??L'objectif de cette tude consiste dvelopper une approche permettant d'conomiser de l'nergie de haut niveau thermique dans le procd de la distillation atmosphrique du (more)

Benali, Tahar

2012-01-01T23:59:59.000Z

122

Modlisation, simulation et contrle des installations cryogniques du CERN  

E-Print Network (OSTI)

Cette thse prsente le dveloppement d'un simulateur de processus cryogniques de grande taille appliqu aux installations cryogniques de l'acclrateur de particules LHC (Large Hadron Collider) au CERN (Organisation Europenne pour la Recherche Nuclaire). Ce simulateur est bas sur une approche de modlisation oriente objet o chaque quipement (changeur, turbine, compresseur, etc.) est reprsent partir d'un ensemble d'quations physiques algbro-diffrentielles. L'architecture de contrle du CERN est galement simule en intgrant le contrle ralis par des automates programmables (PLC) avec le systme de supervision. Ce simulateur t dvelopp pour servir diffrents desseins comme l'entranement des oprateurs, la vrification des programmes automates (virtual commissioning) et l'optimisation des stratgies de contrle. Le systme cryognique d'un dtecteur de particules (CMS) a d'abord t simul pour valider les modles, puis un liqufacteur d'...

Bradu, Benjamin; Gayet, P

2010-01-01T23:59:59.000Z

123

Le TCL pour des produits alatoires d'automorphismes du tore, exemples dans le cas stationnaire.  

E-Print Network (OSTI)

Le TCL pour des produits aléatoires d'automorphismes du tore, exemples dans le cas stationnaire la mesure m vers N(0, 1). Nous présentons des situations où un TCL quenched peut être obtenu, en Introduction, la question du TCL quenched pour un système bré 3 2 Cas indépendant 4 2.1 Trou spectral

Frénod, Emmanuel

124

La ressource Web La ressource et l'ontologie du Web  

E-Print Network (OSTI)

La ressource Web La ressource et l'ontologie du Web Alexandre Monnin1 1 Equipe PHICO, composante débats concernant l'architecture du Web se sont généralement focalisés sur la manière dont ces URIs font ? Tout ce qui est susceptible d'être identifié sur le Web, conçu à la manière d'un espace informationnel

Paris-Sud XI, Université de

125

LE SPECTRE POLLINIQUE DES MIELS DU QUBEC Marie-Jos FELLER-DEMALSY  

E-Print Network (OSTI)

, 1979, 10 (4), 313-340, La comparaison des deux séries d'analyses montre : - une augmentation de la suite à la publication « Analyse pollinique des miels du Québec (FELLER-DEMALSY et LAMONTAGNE 1979). Ce récoltés pour un tiers en 1977 et les deux tiers en 1978, pour la plupart par les services d'inspection du

Recanati, Catherine

126

ARM - Campaign Instrument - s-band-profiler  

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

govInstrumentss-band-profiler govInstrumentss-band-profiler Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Campaign Instrument : NOAA S-band (2835 Mhz) Profiler (S-BAND-PROFILER) Instrument Categories Cloud Properties, Atmospheric Profiling Campaigns CRYSTAL-FACE [ Download Data ] Off Site Campaign : various, including non-ARM sites, 2002.06.26 - 2002.08.01 Midlatitude Continental Convective Clouds Experiment (MC3E): Multi-Frequency Profilers [ Download Data ] Southern Great Plains, 2011.04.22 - 2011.06.06 Tropical Warm Pool - International Cloud Experiment (TWP-ICE) [ Download Data ] Tropical Western Pacific, 2006.01.21 - 2006.02.13 Primary Measurements Taken The following measurements are those considered scientifically relevant. Refer to the datastream (netcdf) file headers for the list of all available

127

Observations and Modeling of Banded Orographic Convection  

Science Conference Proceedings (OSTI)

Radar images and numerical simulations of three shallow convective precipitation events over the Coastal Range in western Oregon are presented. In one of these events, unusually well-defined quasi-stationary banded formations produced large ...

Daniel J. Kirshbaum; Dale R. Durran

2005-05-01T23:59:59.000Z

128

Elastic Turbulence in Shear Banding Wormlike Micelles  

E-Print Network (OSTI)

We study the dynamics of the Taylor-Couette flow of shear banding wormlike micelles. We focus on the high shear rate branch of the flow curve and show that for sufficiently high Weissenberg numbers, this branch becomes ...

Fardin, Marc-Antoine

129

Dipole Bands in {sup 196}Hg  

Science Conference Proceedings (OSTI)

High spin states in {sup 196}Hg have been populated in the {sup 198}Pt({alpha},6n) reaction at 65 MeV and the level scheme has been extended. A new dipole band has been observed and a previously observed dipole has been confirmed. Excitation energies, spins and parities of these bands were determined from DCO ratio and linear polarization measurements. Possible quasiparticle excitations responsible for these structures are discussed.

Lawrie, J. J.; Lawrie, E. A.; Newman, R. T.; Sharpey-Schafer, J. F.; Smit, F. D. [iThemba LABS, PO Box 722, Somerset West 7129 (South Africa); Msezane, B. [iThemba LABS, PO Box 722, Somerset West 7129 (South Africa); Physics Department, University of Zululand, Private Bag X1001, Kwadlangezwa 3886 (South Africa); Benatar, M.; Mabala, G. K.; Mutshena, K. P. [iThemba LABS, PO Box 722, Somerset West 7129 (South Africa); Physics Department, University of Cape Town, Rondebosch 7700 (South Africa); Federke, M.; Mullins, S. M. [Physics Department, University of Cape Town, Rondebosch 7700 (South Africa); Ncapayi, N. J.; Vymers, P. [iThemba LABS, PO Box 722, Somerset West 7129 (South Africa); Physics Department, University of the Western Cape, Private Bag X17, Belleville 7535 (South Africa)

2011-10-28T23:59:59.000Z

130

Control Banding and Nanotechnology Synergist  

Science Conference Proceedings (OSTI)

The average Industrial Hygienist (IH) loves a challenge, right? Okay, well here is one with more than a few twists. We start by going through the basics of a risk assessment. You have some chemical agents, a few workers, and the makings of your basic exposure characterization. However, you have no occupational exposure limit (OEL), essentially no toxicological basis, and no epidemiology. Now the real handicap is that you cannot use sampling pumps, cassettes, tubes, or any of the media in your toolbox, and the whole concept of mass-to-dose is out the window, even at high exposure levels. Of course, by the title, you knew we were talking about nanomaterials (NM). However, we wonder how many IHs know that this topic takes everything you know about your profession and turns it upside down. It takes the very foundations that you worked so hard in college and in the field to master and pulls it out from underneath you. It even takes the gold standard of our profession, the quantitative science of exposure assessment, and makes it look pretty darn rusty. Now with NM there is the potential to get some aspect of quantitative measurements, but the instruments are generally very expensive and getting an appropriate workplace personal exposure measurement can be very difficult if not impossible. The potential for workers getting exposures, however, is very real, as evidenced by a recent publication reporting worker exposures to polyacrylate nanoparticles in a Chinese factory (Song et al. 2009). With something this complex and challenging, how does a concept as simple as Control Banding (CB) save the day? Although many IHs have heard of CB, most of their knowledge comes from its application in the COSHH Essentials toolkit. While there is conflicting published research on COSHH Essentials and its value for risk assessments, almost all of the experts agree that it can be useful when no OELs are available (Zalk and Nelson 2008). It is this aspect of CB, its utility with uncertainty, that attracted international NM experts to recommend this qualitative risk assessment approach for NM. However, since their CB recommendation was only in theory, we took on the challenge of developing a working toolkit, the CB Nanotool (see Zalk et al. 2009 and Paik et al. 2008), as a means to perform a risk assessment and protect researchers at the Lawrence Livermore National Laboratory. While it's been acknowledged that engineered NM have potentially endless benefits for society, it became clear to us that the very properties that make nanotechnology so useful to industry could also make them dangerous to humans and the environment. Among the uncertainties and unknowns with NM are: the contribution of their physical structure to their toxicity, significant differences in their deposition and clearance in the lungs when compared to their parent material (PM), a lack of agreement on the appropriate indices for exposure to NM, and very little background information on exposure scenarios or populations at risk. Part of this lack of background information can be traced to the lack of risk assessments historically performed in the industry, with a recent survey indicating that 65% of companies working with NM are not doing any kind of NM-specific risk assessment as they focus on traditional PM methods for IH (Helland et al. 2009). The good news is that the amount of peer-reviewed publications that address environmental, health and safety aspects of NM has been increasing over the last few years; however, the percentage of these that address practical methods to reduce exposure and protect workers is orders of magnitude lower. Our intent in developing the CB Nanotool was to create a simplified approach that would protect workers while unraveling the mysteries of NM for experts and non-experts alike. Since such a large part of the toxicological effects of both the physical and chemical properties of NM were unknown, not to mention changing logarithmically as new NM research continues growing, we needed to account for this lack of information as part of the CB Nano

Zalk, D; Paik, S

2009-12-15T23:59:59.000Z

131

Le rle de la presse dans la constitution du littraire au Bas-Canada et au Brsil au cours du premier XIXe sicle : vers la formation d'une culture nationale dans les collectivits neuves des Amriques.  

E-Print Network (OSTI)

??Cette thse envisage la formation des cultures nationales au sein de deux collectivits neuves des Amriques, alors que s'enclenche, au toumant du XIXe sicle, un (more)

Doyon, Nova

2008-01-01T23:59:59.000Z

132

ISM band to U-NII band frequency transverter and method of frequency transversion  

DOE Patents (OSTI)

A frequency transverter (10) and method for enabling bi-frequency dual-directional transfer of digitally encoded data on an RF carrier by translating between a crowded or otherwise undesirable first frequency band, such as the 2.4 GHz ISM band, and a less-crowded or otherwise desirable second frequency band, such as the 5.0 GHz 6.0 GHz U-NII band. In a preferred embodiment, the transverter (10) connects between an existing data radio (11) and its existing antenna (30), and comprises a bandswitch (12); an input RF isolating device (14); a transmuter (16); a converter (18); a dual output local oscillator (20); an output RF isolating device (22); and an antenna (24) tuned to the second frequency band. The bandswitch (12) allows for bypassing the transverter (10), thereby facilitating its use with legacy systems. The transmuter (14) and converter (16) are adapted to convert to and from, respectively, the second frequency band.

Stepp, Jeffrey David (Grandview, MO); Hensley, Dale (Grandview, MO)

2006-09-12T23:59:59.000Z

133

ISM band to U-NII band frequency transverter and method of frequency transversion  

DOE Patents (OSTI)

A frequency transverter (10) and method for enabling bi-frequency dual-directional transfer of digitally encoded data on an RF carrier by translating between a crowded or otherwise undesirable first frequency band, such as the 2.4 GHz ISM band, and a less-crowded or otherwise desirable second frequency band, such as the 5.0 GHz-6.0 GHz U-NII band. In a preferred embodiment, the transverter (10) connects between an existing data radio (11) and its existing antenna (30), and comprises a bandswitch (12); an input RF isolating device (14); a transmuter (16); a converter (18); a dual output local oscillator (20); an output RF isolating device (22); and an antenna (24) tuned to the second frequency band. The bandswitch (12) allows for bypassing the transverter (10), thereby facilitating its use with legacy systems. The transmuter (14) and converter (16) are adapted to convert to and from, respectively, the second frequency band.

Stepp, Jeffrey David (Grandview, MO); Hensley, Dale (Grandview, MO)

2006-04-04T23:59:59.000Z

134

perdue pendant un cycle est gale cette force en dynes, divise par la section du spcimen de fer tudi.  

E-Print Network (OSTI)

mecanica (Variation de la constante diélectrique du verre sous l'action d'une traction mécanique). - P. 305

Paris-Sud XI, Université de

135

Stratgie de distribution d'un groupe petrolier intgr : Cas du groupe sonatrach et sa filiale de distribution naftal.  

E-Print Network (OSTI)

??425 p. ; ill. ; 30 cm Avec l'ouverture du march national des produits ptroliers aux oprateurs privs nationaux et trangers, Naftal, socit Nationale de (more)

Houghlaouene, Samir

2007-01-01T23:59:59.000Z

136

IR Spectral Bands and Performance | Open Energy Information  

Open Energy Info (EERE)

2013 DOI Not Provided Check for DOI availability: http:crossref.org Online Internet link for IR Spectral Bands and Performance Citation Chris Douglass. IR Spectral Bands...

137

The association of Texas small school bands: An historical perspective.  

E-Print Network (OSTI)

??From 1991 2011 the Association of Texas Small School Bands has provided a multitude of services for small school band directors and students in (more)

Exline, Jimmie

2012-01-01T23:59:59.000Z

138

W-band Frequency Synthesis and AM/PM Noise ...  

Science Conference Proceedings (OSTI)

... W-band Frequency Synthesis and AM/PM Noise Measurement System. ... Dual-channel W-band AM/PM noise measurement system. ...

2010-10-05T23:59:59.000Z

139

Automated coregistration of MTI spectral bands.  

SciTech Connect

In the focal plane of a pushbroom imager, a linear array of pixels is scanned across the scene, building up the image one row at a time. For the Multispectral Thermal Imager (MTI), each of fifteen different spectral bands has its own linear array. These arrays are pushed across the scene together, but since each band's array is at a different position on the focal plane, a separate image is produced for each band. The standard MTI data products resample these separate images to a common grid and produce coregistered multispectral image cubes. The coregistration software employs a direct 'dead reckoning' approach. Every pixel in the calibrated image is mapped to an absolute position on the surface of the earth, and these are resampled to produce an undistorted coregistered image of the scene. To do this requires extensive information regarding the satellite position and pointing as a function of time, the precise configuration of the focal plane, and the distortion due to the optics. These must be combined with knowledge about the position and altitude of the target on the rotating ellipsoidal earth. We will discuss the direct approach to MTI coregistration, as well as more recent attempts to 'tweak' the precision of the band-to-band registration using correlations in the imagery itself.

Theiler, J. P. (James P.); Galbraith, A. E. (Amy E.); Pope, P. A. (Paul A.); Ramsey, K. A. (Keri A.); Szymanski, J. J. (John J.)

2002-01-01T23:59:59.000Z

140

Ensembles de niveaux robustes au speckle et recalage B-spline: application la segmentation et l'analyse du mouvement cardiaque par des images ultrasons.  

E-Print Network (OSTI)

??L'analyse du mouvement local des parois du cur dans des images ultrasonores est souvent utilise pour diagnostiquer certaines malformations cardiaques. Malheureusement, cette modalit produit des (more)

Mora Cofre, Marco Antonio

2008-01-01T23:59:59.000Z

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


141

Radiative Heating in Underexplored Bands Campaign (RHUBC)  

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

Bands Campaign (RHUBC) D. Turner and E. Mlawer RHUBC Breakout Session 2008 ARM Science Team Meeting 13 March, 2008 Norfolk, Virginia Motivation * Radiative heating/cooling in the mid-troposphere modulate the vertical motions of the atmosphere - This heating/cooling occurs primarily in water vapor absorption bands that are opaque at the surface * Approximately 40% of the OLR comes from the far-IR * Until recently, the observational tools were not available to evaluate the accuracy of the far-IR radiative transfer models - Spectrally resolved far-IR radiances, accurate PWV * Need to validate both clear sky (WV) absorption and cirrus scattering properties in these normally opaque bands Scientific Objectives * Conduct clear sky radiative closure studies in order to reduce uncertainties

142

Quantum Cascade Laser Energy Band Diagram  

E-Print Network (OSTI)

Quantum Cascade Lasers (QCLs) are semiconductor lasers that emit in the mid- and long-wave IR bands, and are fi nding new applications in precision sensing, spectroscopy, medical, and military applications (1). Their wide tuning range and fast response time allow for faster and more precise compact trace element detectors and gas analyzers that are replacing slower and larger FTIR, mass spectroscopy, and photothermal microspectroscopy systems. Figure 1 represents the physics behind Quantum Cascade Lasers. It depicts the laser energy bands that allow QC lasing. For more information about QCLs and the physics behind

unknown authors

2013-01-01T23:59:59.000Z

143

More Weatherized Homes for Minnesota Tribe | Department of Energy  

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

More Weatherized Homes for Minnesota Tribe More Weatherized Homes for Minnesota Tribe More Weatherized Homes for Minnesota Tribe April 22, 2010 - 4:51pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE Randy and Dorothy Pittman are cozy now, but for the first few winters in their new home at the Fond du Lac Reservation this was not the case. At first, the couple, who moved from muggy Alabama, thought they needed time to acclimate to the Minnesota cold. It turned out it was the two-story house they constructed that needed adjusting. "I had not built a house in the North," says Dorothy, a tribal member of the Fond du Lac Band of Lake Superior Chippewa, who takes partial blame for a drafty downstairs. "It's a whole different climate here." Everything changed last fall after a weatherization crew from Arrowhead

144

More Weatherized Homes for Minnesota Tribe | Department of Energy  

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

More Weatherized Homes for Minnesota Tribe More Weatherized Homes for Minnesota Tribe More Weatherized Homes for Minnesota Tribe April 22, 2010 - 4:51pm Addthis Stephen Graff Former Writer & editor for Energy Empowers, EERE Randy and Dorothy Pittman are cozy now, but for the first few winters in their new home at the Fond du Lac Reservation this was not the case. At first, the couple, who moved from muggy Alabama, thought they needed time to acclimate to the Minnesota cold. It turned out it was the two-story house they constructed that needed adjusting. "I had not built a house in the North," says Dorothy, a tribal member of the Fond du Lac Band of Lake Superior Chippewa, who takes partial blame for a drafty downstairs. "It's a whole different climate here." Everything changed last fall after a weatherization crew from Arrowhead

145

Band structure of doubly-odd nuclei around mass 130  

Science Conference Proceedings (OSTI)

Nuclear structure of the doublet bands in the doubly-odd nuclei with mass A{approx}130 is studied in terms of a pair-truncated shell model. The model reproduces quite well the energy levels of the doublet bands and the electromagnetic transitions. The analysis of the electromagnetic transitions reveals new band structure of the doublet bands.

Higashiyama, Koji [Department of Physics, Chiba Institute of Technology, Narashino, Chiba 275-0023 (Japan); Yoshinaga, Naotaka [Department of Physics, Saitama University, Saitama City 338-8570 (Japan)

2011-05-06T23:59:59.000Z

146

TD Theor`eme central limite, variables gaussiennes. Exercice 1 : Application du TCL : intervalle de confiance asymptotique.  

E-Print Network (OSTI)

TD Th´eor`eme central limite, variables gaussiennes. Exercice 1 : Application du TCL : intervalle'´echantillon `a sonder si on veut n 0.01). b. Donner une approximation de n en utilisant le TCL. Indication : F(1 : Applications du TCL (Feller pp 241-243; Foata-Fuchs pp 240-241). Formule de Stirling. Soient X1, . . . , Xn des

Berthelin, Florent

147

COMPARAISON DU RAYONNEMENT DES ISOTOPES RADIOACTIFS DES TERRES RARES FORMS DANS L'URANIUM ET LE THORIUM  

E-Print Network (OSTI)

COMPARAISON DU RAYONNEMENT DES ISOTOPES RADIOACTIFS DES TERRES RARES FORM?S DANS L'URANIUM ET LE semblables au lanthane, extraits de l'uranium ou du thorium irradié par les neutrons. Dans les limites dV. On sait que les noyaux d'uranium et de thorium irradiés par les neutrons peuvent subir une explosion qui

Paris-Sud XI, Université de

148

Shear banding in soft glassy materials  

E-Print Network (OSTI)

Many soft materials, including foams, dense emulsions, micro gel bead suspensions, star polymers, dense packing of surfactant onion micelles, and textured morphologies of liquid crystals, share the basic "glassy" features of structural disorder and metastability. These in turn give rise to several notable features in the low frequency shear rheology (deformation and flow properties) of these materials: in particular, the existence of a yield stress below which the material behaves like a solid, and above which it flows like a liquid. In the last decade, intense experimental activity has also revealed that these materials often display a phenomenon known as shear banding, in which the flow profile across the shear cell exhibits macroscopic bands of different viscosity. Two distinct classes of yield stress fluid have been identified: those in which the shear bands apparently persist permanently (for as long as the flow remains applied), and those in which banding arises only transiently during a process in which a steady flowing state is established out of an initial rest state (for example, in a shear startup or step stress experiment). After surveying the motivating experimental data, we describe recent progress in addressing it theoretically, using the soft glassy rheology model and a simple fluidity model. We also briefly place these theoretical approaches in the context of others in the literature, including elasto-plastic models, shear transformation zone theories, and molecular dynamics simulations. We discuss finally some challenges that remain open to theory and experiment alike.

Suzanne M. Fielding

2013-09-13T23:59:59.000Z

149

CX-002687: Categorical Exclusion Determination | Department of...  

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

du Lac County and Milwaukee County. Solar photovoltaic units with a capacity of 18.9 kilowatts will be installed on the Forest County Potawatomi Community Administrative Building...

150

Step-by-Step Instructions  

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

Wood Dunn Marathon Rock Eau Claire Marinette Rusk Fond du Lac Marquette Sauk Windows Insulation Foundation Fenestration U-Factor Skylight U-Factor Glazed Fenestration SHGC Ceiling...

151

S-Band Loads for SLAC Linac  

SciTech Connect

The S-Band loads on the current SLAC linac RF system were designed, in some cases, 40+ years ago to terminate 2-3 MW peak power into a thin layer of coated Kanthal material as the high power absorber [1]. The technology of the load design was based on a flame-sprayed Kanthal wire method onto a base material. During SLAC linac upgrades, the 24 MW peak klystrons were replaced by 5045 klystrons with 65+ MW peak output power. Additionally, SLED cavities were introduced and as a result, the peak power in the current RF setup has increased up to 240 MW peak. The problem of reliable RF peak power termination and RF load lifetime required a careful study and adequate solution. Results of our studies and three designs of S-Band RF load for the present SLAC RF linac system is discussed. These designs are based on the use of low conductivity materials.

Krasnykh, A.; Decker, F.-J.; /SLAC; LeClair, R.; /INTA Technologies, Santa Clara

2012-08-28T23:59:59.000Z

152

Permanent magnet focused X-band photoinjector  

DOE Patents (OSTI)

A compact high energy photoelectron injector integrates the photocathode directly into a multicell linear accelerator with no drift space between the injection and the linac. High electron beam brightness is achieved by accelerating a tightly focused electron beam in an integrated, multi-cell, X-band rf linear accelerator (linac). The photoelectron linac employs a Plane-Wave-Transformer (PWT) design which provides strong cell-to-cell coupling, easing manufacturing tolerances and costs.

Yu, David U. L. (Rancho Palos Verdes, CA); Rosenzweig, James (Los Angeles, CA)

2002-09-10T23:59:59.000Z

153

Fabrication of photonic band gap materials  

DOE Patents (OSTI)

A method for forming a periodic dielectric structure exhibiting photonic band gap effects includes forming a slurry of a nano-crystalline ceramic dielectric or semiconductor material and monodisperse polymer microspheres, depositing a film of the slurry on a substrate, drying the film, and calcining the film to remove the polymer microspheres therefrom. The film may be cold-pressed after drying and prior to calcining. The ceramic dielectric or semiconductor material may be titania, and the polymer microspheres may be polystyrene microspheres.

Constant, Kristen (Ames, IA); Subramania, Ganapathi S. (Ames, IA); Biswas, Rana (Ames, IA); Ho, Kai-Ming (Ames, IA)

2002-01-15T23:59:59.000Z

154

Fabrication of Photonic band gap Materials  

DOE Patents (OSTI)

A method for forming a periodic dielectric structure exhibiting photonic band gap effects includes forming a slurry of a nano-crystalline ceramic dielectric or semiconductor material and monodisperse polymer microsphere, depositing a film of the slurry on a substrate, drying the film, and calcining the film to remove the polymer microsphere there from. The film may be cold-pressed after drying and prior to calcining. The ceramic dielectric or semiconductor material may be titania, and the polymer microsphere may be polystyrenemicrosphere.

Constant, Kristen; Subramania, Ganapathi S.; Biswas, Rana; Ho, Kai-Ming

2000-01-05T23:59:59.000Z

155

Broad Band Photon Harvesting Biomolecules for Photovoltaics  

E-Print Network (OSTI)

We discuss the key principles of artificial photosynthesis for photovoltaic energy conversion. We demonstrate these principles by examining the operation of the so-called "dye sensitized solar cell" (DSSC) - a photoelectrochemical device which simulates the charge separation process across a nano-structured membrane that is characteristic of natural systems. These type of devices have great potential to challenge silicon semiconductor technology in the low cost, medium efficiency segment of the PV market. Ruthenium charge transfer complexes are currently used as the photon harvesting components in DSSCs. They produce a relatively broad band UV and visible response, but have long term stability problems and are expensive to manufacture. We suggest that a class of biological macromolecules called the melanins may be suitable replacements for the ruthenium complexes. They have strong, broad band absorption, are chemically and photochemically very stable, can be cheaply and easily synthesized, and are also bio-available and bio-compatible. We demonstrate a melanin-based regenerative solar cell, and discuss the key properties that are necessary for an effective broad band photon harvesting system.

P. Meredith; B. J. Powell; J. Riesz; R. Vogel; D. Blake; I. Kartini; G. Will; S. Subianto

2004-06-04T23:59:59.000Z

156

CONSERVATION GNTIQUE EN EUROPE EN RAPPORT AVEC L'LEVAGE DU FUTUR  

E-Print Network (OSTI)

SESSION1 CONSERVATION G?N?TIQUE EN EUROPE EN RAPPORT AVEC L'?LEVAGE DU FUTUR Conservation of animal to preserve less productive breeds. Argu- ments for conservation cover emotional, cultural and scientific production. Costs and time require priorities for objectives, species and forms of conservation

Recanati, Catherine

157

1-800-666-2211WWW.CornellpreSS.Cornell.eDU Cornell University Press  

E-Print Network (OSTI)

.CornellpreSS.Cornell.eDU G e n e r a l i n t e r e s t 5 under the surface Fracking, Fortunes, and the Fate of the Marcellus Wilber takes us to the living rooms, farms, meeting halls, and mountain streams where the fracking drama developments that combine horizontal drilling with hydraulic fracturing ("fracking") have removed physical

Manning, Sturt

158

Mot du directeur Notre site Web en mutation : dition revue, augmente et corrige l'horizon  

E-Print Network (OSTI)

LINGUISTIQUE Faculté des arts 5-280 Répertoire 2012 Linguistique Liste des cours optionnels LIN2381 Varieties of English ou LIN2782 Variétés de français LIN3730 Linguistique historique ou LIN3332 Linguistic History of English ou LIN3733 Histoire linguistique du français LIN3740 Dialectologie ou LIN3742

Skorobogatiy, Maksim

159

Le manuscrit Stein 4226 Taiping bu juan di er dans l'histoire du taosme mdival  

E-Print Network (OSTI)

a permis la consultation du manuscrit original, ainsi que MM. Jean- Pierre Drège et John Lagerwey pour leur (Chinese texts other than Buddhist scriptures), vol. 6, p. 1-8 (reproduction également en noir et blanc). 8 Fujieda Akira, « The Tunhuang Manuscripts : A General Description (Part I) », p. 18. 10 Par exemple, le

Paris-Sud XI, Université de

160

TD-Developpements : Theor`eme central limite Points du cours  

E-Print Network (OSTI)

´eor`eme de L´evy. · TCL. · Exemple de lois : Gaussienne, exponentielle, bin^omiale, Gamma (op- tion). · TCL). Exercice 1 : Application du TCL : intervalle de confiance asymptotique. Dans une population, on veut approximation de n en utilisant le TCL. Indication : F(1.96) - F(-1.96) = 0.95 si F est la fonction de r

Barré, Julien

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


161

Passive Time Coincidence Measurements with Assemblies of HEU and DU Castings  

SciTech Connect

Five highly enriched (93.2 wt% 235U) uranium (HEU) and three depleted (0.2 wt% 235U) uranium (DU) castings were available for passive time coincidence measurements with two arrays of eight total liquid scintillation detectors and two arrays of 32 total moderated 3He detectors. In addition to measurements with each type of casting, measurements were also performed with both types of castings intermingled. The spontaneous fission rate for the casting is primarily due to the presence of 238U. Thus, the DU castings have ~15 times more spontaneous fission that the HEU castings with very little addition in multiplication with each addition of a DU casting. The characteristic time behavior of the fission chain multiplication process is determined by the 235U. The presence of the DU castings in these assemblies has three physical effects: provision of an additional source of neutrons to initiate fission chains in the HEU, reflection of neutrons back into the HEU, and shielding of the detectors from fission chain neutrons and gammas. The effects are investigated within the context of the time coincidence distributions using the signal-triggered multiplets and Feynman variances.

McConchie, Seth M [ORNL; Hausladen, Paul [ORNL; Mihalczo, John T [ORNL

2009-01-01T23:59:59.000Z

162

Revue de presse ANGLAIS Semaine du 28 janvier au 03 fvrier 2013  

E-Print Network (OSTI)

of U.S. Public Schools have armed guards. After newtown, more may get them but do they make kids safer ? The answer will surprise you. The Economist ­ January 26, 2013 Middle East and Africa Kenya's lions - Sad lives. Courrier International ­ n°1161 ­ Du 31 janvier au 06 février 2013 Sciences et innovation Des

Rennes, Université de

163

ETUDE ET MODELISATION DU COMPORTEMENT THERMO-CHIMIO-MECANIQUE DES OXYDES CONDUCTEURS MIXTES  

E-Print Network (OSTI)

la production d'oxygène ou de gaz de synthèse (syngas). La production d'oxygène ultra pur à haute procédés industriels, tel que le reformage du méthane pour la production de syngas (H2/CO) ou encore l

164

Band Formation in a New England Winter Storm  

Science Conference Proceedings (OSTI)

This case study addresses mechanisms of band formation in a New England winter storm. The structure of the bands and their environment are documented with synoptic observations, radar data, and analyses of instrumented aircraft flights through ...

Dawn G. Wolfsberg; Kerry A. Emanuel; Richard E. Passarelli

1986-08-01T23:59:59.000Z

165

Substrate-Induced Band-Gap Opening in Epitaxial Graphene  

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

Substrate-Induced Band-Gap Opening in Epitaxial Graphene Substrate-Induced Band-Gap Opening in Epitaxial Graphene Print Wednesday, 26 March 2008 00:00 Prospective challengers to...

166

Energy Band Gap Engineering of Graphene Nanoribbons  

E-Print Network (OSTI)

We investigate electronic transport in lithographically patterned graphene ribbon structures where the lateral confinement of charge carriers creates an energy gap near the charge neutrality point. Individual graphene layers are contacted with metal electrodes and patterned into ribbons of varying widths and different crystallographic orientations. The temperature dependent conductance measurements show larger energy gaps opening for narrower ribbons. The sizes of these energy gaps are investigated by measuring the conductance in the non-linear response regime at low temperatures. We find that the energy gap scales inversely with the ribbon width, thus demonstrating the ability to engineer the band gap of graphene nanostructures by lithographic processes.

Han, M Y

2007-01-01T23:59:59.000Z

167

Liquid Crystal Polymer-Based Planar Lumped Component Dual-Band Filters For Dual-Band WLAN Systems1  

E-Print Network (OSTI)

TH4A-2 Liquid Crystal Polymer-Based Planar Lumped Component Dual- Band Filters For Dual-Band WLAN River Street, Essex Junction, VT 05495 2 School of Electrical and Computer Engineering, Georgia

Swaminathan, Madhavan

168

Hybrid Band effects program (Lockheed Martin shared vision CRADA)  

Science Conference Proceedings (OSTI)

Hybrid Band{trademark} (H-band) is a Lockheed Martin Missiles and Fire Control (LMMFC) designation for a specific RF modulation that causes disruption of select electronic components and circuits. H-Band enables conventional high-power microwave (HPM) effects (with a center frequency of 1 to 2 GHz, for example) using a higher frequency carrier signal. The primary technical objective of this project was to understand the fundamental physics of Hybrid Band{trademark} Radio Frequency effects on electronic systems. The follow-on objective was to develop and validate a Hybrid Band{trademark} effects analysis process.

Bacon, L. D.

2012-03-01T23:59:59.000Z

169

Characterization of DuPont 9015, aqueous processable dry film photoresist for printed wiring boards. Topical report  

SciTech Connect

This report describes the evaluation of DuPont`s Riston 9015, fully aqueous processable dry film photoresist as a mask for gold plating, tin/lead plating, and print and etch patterning for printed circuit board products.

Goldammer, S.

1995-04-01T23:59:59.000Z

170

La vengeance du consommateur insatisfait sur Internet et l'effet sur les attitudes des autres consommateurs.  

E-Print Network (OSTI)

??Ce travail doctoral s'intresse au phnomne de vengeance du consommateur insatisfait sur Internet et l'effet de cette action sur les attitudes des autres consommateurs. Deux (more)

Passos, Gisle

2013-01-01T23:59:59.000Z

171

Histoire du thorme de Jordan de la dcomposition matricielle (1870-1930). Formes de reprsentation et mthodes de dcomposition.  

E-Print Network (OSTI)

??L'histoire du thorme de Jordan est aborde sous l'angle d'une question d'identit pose sur la priode qui spare la date de 1870 et l'nonc par (more)

Brechenmacher, Frederic

2006-01-01T23:59:59.000Z

172

LA COLONISATION DE L'AMAZONIE FACE AU DEVELOPPEMENT DURABLE : L'EXEMPLE DU BARRAGE DE BELO MONTE  

E-Print Network (OSTI)

LA COLONISATION DE L'AMAZONIE FACE AU DEVELOPPEMENT DURABLE : L'EXEMPLE DU BARRAGE DE BELO MONTE projets phare du programme Avança Brasil, le barrage de Belo Monte, barrage que nous replaçons dans l on the detailed study of one of the most important projcet of the Avança Brazil Program, the Belo Monte dam, we

Paris-Sud XI, Université de

173

Broad-line and Multi-wave Band Emission from Blazars  

E-Print Network (OSTI)

We study the correlations of the flux of the broad-line emission ($F_{BLR}$) with the X-ray emission flux, optical emission flux at 5500 \\AA and radio emission flux at 5 GHz, respectively, for a large sample of 50 Blazars (39 flat-spectrum radio quasars (FSRQs) and 11 BL Lac objects). Our main results are as follows. There are very strong correlations between $F_{BLR}$ and $F_{X}$ and between $L_{BLR}$ and $L_{X}$ in both states for 39 FSRQs and the slopes of the linear regression equations are almost equal to 1. There are weak correlations between $F_{BLR}$ and $F_{X}$ and between $L_{BLR}$ and $L_{X}$ for 11 BL Lac objects in both states, and the slopes of the linear regression equations are close to 1. There are significant correlations between $F_{BLR}$ and $F_{X}$ and between $L_{BLR}$ and $L_{X}$ for 50 blazars in both states, the slopes of both the linear regression equations are also close to 1. These results support a close link between relativistic jets and accretion on to the central Kerr black hole. On the other hand, we find that BL Lac objects have low accretion efficiency $\\eta$, whereas FSRQs have high accretion efficiency $\\eta$. The unified model of FSRQs and BL Lac objects is also discussed.

T. F. Yi; G. Z. Xie

2008-03-24T23:59:59.000Z

174

Eastern Band of Cherokee Strategic Energy Plan  

SciTech Connect

The Eastern Band of Cherokee Indians was awarded a grant under the U.S. Department of Energy Tribal Energy Program (TEP) to develop a Tribal Strategic Energy Plan (SEP). The grant, awarded under the First Steps phase of the TEP, supported the development of a SEP that integrates with the Tribes plans for economic development, preservation of natural resources and the environment, and perpetuation of Tribal heritage and culture. The Tribe formed an Energy Committee consisting of members from various departments within the Tribal government. This committee, together with its consultant, the South Carolina Institute for Energy Studies, performed the following activities: Develop the Tribes energy goals and objectives Establish the Tribes current energy usage Identify available renewable energy and energy efficiency options Assess the available options versus the goals and objectives Create an action plan for the selected options

Souther Carolina Institute of energy Studies-Robert Leitner

2009-01-30T23:59:59.000Z

175

STATEMENT OF CONSIDERATIONS REQUEST BY E.I. DU PONT DE NEMOURS AND COMPANY  

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

06, DOE WAIVER NO. W(A) 02-037. 06, DOE WAIVER NO. W(A) 02-037. The Petitioner, DuPont, has requested a waiver of all domestic and foreign patent rights to inventions that may be conceived or first actually reduced to practice in the course of DuPont's work as a subcontractor to De Nora, North America (De Nora) under Cooperative Agreement Number DE-FC04-02AL67606 entitled "Integrated Manufacturing for Advanced Membrane Electrode Assemblies" with the U.S. Department of Energy (DOE). De Nora has already requested a similar advance waiver of rights for De Nora's inventions as the prime contractor. De Nora's advance waiver petition has been given the tracking number W(A) 02-036. The work to be done under the overall cooperative agreement will be the design, development and manufacture of improved cathodes and membranes for Proton

176

Du you any one can comment on where to study and how to acquire the LEED  

Open Energy Info (EERE)

Du you any one can comment on where to study and how to acquire the LEED Du you any one can comment on where to study and how to acquire the LEED CERTIFICATION FOR INDIVIDUALS & BUILDINGS? Home > Groups > OpenEI Community Central LEED GA LEED AP - BD & C LEED AP - O & M LEED AP Homes LEED AP SCHOOLS LEED AP ND....................................? I prefer to have it in Saudi arabia, pls comment Submitted by Sri sri on 18 February, 2013 - 00:36 1 answer Points: 0 USGBC is the best resource to start with for LEED Credentials and Certification. Cerfification- http://www.usgbc.org/leed/certification Credentials - http://www.usgbc.org/credentials USGBC also offers a webinar subscription that allows users to earn CMP hours on demand and in one place, you might find this helpful: http://usgbc.peachnewmedia.com/store/provider/provider09.php NickL on 2

177

Active Interrogation Observables for Enrichment Determination of DU Shielded HEU Metal Assemblies with Limited Geometrical Information  

SciTech Connect

Determining the enrichment of highly enriched uranium (HEU) metal assemblies shielded by depleted uranium (DU) proves a unique challenge to currently employed measurement techniques. Efforts to match time-correlated neutron distributions obtained through active interrogation to Monte Carlo simulations of the assemblies have shown promising results, given that the exact geometries of both the HEU metal assemblies and DU shields are known from imaging and fission site mapping. In certain situations, however, it is desirable to obtain enrichment with limited or no geometrical information of the assemblies being measured. This paper explores the possibility that the utilization of observables in the interrogation of assemblies by time-tagged D-T neutrons, including time-correlated distribution of neutrons and gammas using liquid scintillators operating on the fission chain time scale, can lead to enrichment determination without a complete set of geometrical information.

Pena, Kirsten E [ORNL; McConchie, Seth M [ORNL; Crye, Jason Michael [ORNL; Mihalczo, John T [ORNL

2011-01-01T23:59:59.000Z

178

STATEMENT OF CONSIDERATIONS REQUEST BY E.I. DU PONT DE NEMOURS AND COMPANY  

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

20, DOE WAIVER NO. W(A) 04-015. 20, DOE WAIVER NO. W(A) 04-015. The Petitioner, DuPont, has requested a waiver of all domestic and foreign patent rights to inventions that the Petitioner may conceive or first actually reduce to practice in the course of DuPont's work as a subcontractor to Superior MicroPowders (Superior MP) under Cooperative Agreement Number DE-FC04-02AL67620 entitled "Development of High Performance, Low Platinum Cathodes Containing New Catalysts and Layer Structure (Topic 1Al)" with the U.S. Department of Energy (DOE). The work to be done under the overall cooperative agreement will be the design and development of ink and electrodes that will increase catalyst screening throughput using small amounts of catalyst candidates and increasing the efficiency of membrane electrode

179

Du you any one can comment on where to study and how to acquire the LEED  

Open Energy Info (EERE)

Du you any one can comment on where to study and how to acquire the LEED Du you any one can comment on where to study and how to acquire the LEED CERTIFICATION FOR INDIVIDUALS & BUILDINGS? Home > Groups > OpenEI Community Central LEED GA LEED AP - BD & C LEED AP - O & M LEED AP Homes LEED AP SCHOOLS LEED AP ND....................................? I prefer to have it in Saudi arabia, pls comment Submitted by Sri sri on 18 February, 2013 - 00:36 1 answer Points: 0 USGBC is the best resource to start with for LEED Credentials and Certification. Cerfification- http://www.usgbc.org/leed/certification Credentials - http://www.usgbc.org/credentials USGBC also offers a webinar subscription that allows users to earn CMP hours on demand and in one place, you might find this helpful: http://usgbc.peachnewmedia.com/store/provider/provider09.php NickL on 2

180

DOE - Office of Legacy Management -- E I Du Pont - NJ 06  

Office of Legacy Management (LM)

- NJ 06 - NJ 06 FUSRAP Considered Sites E.I. Dupont, NJ Alternate Name(s): E.I. Du Pont De Nemours and Company E.I. Du Pont Company Dupont Chambers Works Plant NJ.06-1 NJ.06-5 Location: Pennsville and Carney Townships, Southeast bank of the Delaware River, Deepwater, New Jersey NJ.06-5 Historical Operations: Development of a process for converting uranium oxide to uranium tetraflouride, production of uranium tetraflouride, research into conversion of uranium oxide to uranium metal, and production of uranium metal. NJ.06-3 NJ.06-5 Eligibility Determination: Eligible NJ.06-1 Radiological Survey(s): Assessment Surveys NJ.06-3 NJ.06-5 NJ.06-7 NJ.06-8 Site Status: Cleanup in progress by U.S. Army Corps of Engineers. NJ.06-2 NJ.06-6 USACE Website Long-term Care Requirements: To be determined upon completion.

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


181

L'identit de dfense kantienne du Japon : l'utilit et les limites de l'approche constructiviste d'Alexander Wendt.  

E-Print Network (OSTI)

??En 1999, Alexander Wendt publiait Social Theory of International Politics. Cet ouvrage phare du constructivisme a ses dtracteurs qui le critiquent surtout pour ses positions (more)

Desjardins, Bruno

2007-01-01T23:59:59.000Z

182

Stratgie fdrale et dveloppement d'un sport spectacle. L'exemple du hockey sur glace en France. Socio-histoire d'un chec ?.  

E-Print Network (OSTI)

??Cette thse s'intresse - au niveau national - aux transformations du hockey sur glace sur une priode allant de 1986 (date de l'obtention des Jeux (more)

Delorme, Nicolas

2011-01-01T23:59:59.000Z

183

Etude du comportement de mousse cramique comme contacteur Gaz/Liquide contre courant : application la distillation et la distillation ractive.  

E-Print Network (OSTI)

??Ces travaux de thse abordent la problmatique du dveloppement d'internes destins la distillation ractive. La mthodologie suivre est applique dans le cas des (more)

Lvque, Julien

2010-01-01T23:59:59.000Z

184

A propos d'un premier inventaire des monasteres bon po du Tibet et de l'Himalaya. Notes de lecture  

E-Print Network (OSTI)

bon po au Gansu (p. 504 et 506) et 10 au Qinghai (p.497-500, de faon plus dtaille). Revue dEtudes Tibtaines44 Bon po, la grande statue de Buddha du Bingling si (Gansu) est celle degShen rab mi bo. Il cite galement des relevs chinois des annes... 'dition de 1982 (Lanzhou,Kan su'u mi rigs dpe skrun khang), le numro de ligne est celui o apparat lenom du monastre ; sa dfinition ou localisation sommaire telle qu'elle peut tredduite des brves mentions du texte ou du contexte ; ventuellement...

Chayet, Anne

2004-01-01T23:59:59.000Z

185

Etude de linfluence de la composition chimique de la charge de cokfaction sur le rendement et la qualit du coke.  

E-Print Network (OSTI)

??116 p. : ill. ; 30 cm Dans le prsent travail, on se propose dtudier linfluence de la qualit de la charge du procd de (more)

Hennaoui, Feriel

2010-01-01T23:59:59.000Z

186

Planning des cours du Dpartement d'etudes cognitives Anne universitaire 2012-2013  

E-Print Network (OSTI)

3 Introduction à la linguistique Homer 6 Je 17-19 Salle 236 DEC-C02-S1 Introduction à la linguistique - TD Jeremy Zehr 4 Lu 15-17 235B DEC-CO3-S1 Introduction à la psychologie cognitive J.Sackur /T incluse). COURS DU MASTER DE LINGUISTIQUE à l'ENS DEC-B17-S2 Sémantique Intensive approches

Gutkin, Boris

187

Ce dernier potentiel d'ionisation peut servir au calcul des moments magntiques nuclaires du plutonium,  

E-Print Network (OSTI)

plutonium, mais nous avons constaté par la suite, qu'un facteur 2 a été omis dans notre calcul du nombre valeurs probables des moments magnétiques nucléaires sont : y(239Pu) = 0,175 + 0,040 magnétons nucléaires y(241Pu) = 0,62 ± 0,15 » » L'incertitude des résultats provient principalemenl des mesures de la

Paris-Sud XI, Université de

188

Syst`eme de prevention du risque de renversement lateral pour des vehicules  

E-Print Network (OSTI)

de Charge Lat´eral (TCL), repr´esentatif des instabilit´es dynamiques lat´erales. Le TCL est calcul´eger Tout Terrain (VLTT), Transfert de Charge Lat´eral (TCL), observateur, pente lat´erale, quad, syst renversement Peters (2009), le TCL a ´et´e choisi car il n´ecessite seulement une mod´elisation simple du v

Paris-Sud XI, Université de

189

Algorithmique pour l'algbre linaire vrifie : Vrification du facteur R dans la factorisation QR.  

E-Print Network (OSTI)

Algorithmique pour l'algèbre linéaire vérifiée : Vérification du facteur R dans la factorisation QR symétriques positives définies, et soit E = A - A. Soient R et R les facteurs de Cholesky de A et A respectivement. On note G = | R-T E R-1 |. Si (G) R - R| triu(G(I - G)-1 )| R|. Démonstration. En

Louvet, Nicolas

190

Prompt Neutron Time Decay in Single HEU and DU Metal Annular Storage Castings  

SciTech Connect

Previous measurements of highly enriched uranium (HEU) storage castings performed by Oak Ridge National Laboratory (ORNL) at the Y-12 National Security Complex showed a prompt neutron time decay that is not exponential. These measurements showed that multiple time constants originating from multiplication, time-of-flight, scattering in the assembly and room return could be associated with this prompt neutron decay. In this work, the contribution not associated with neutron multiplication was investigated via measurements with a depleted uranium (DU) casting. The measurements at ORNL used an annular (5.0-in OD, 3.5-in ID, 6.0-in H) DU casting with a time-tagged 252Cf source, centered vertically on the axis, and four closely coupled 1 1 6-in.-long plastic scintillators with -in.- thick lead shielding adjacent to the outer surface of the casting. This setup was identical to the configuration used in the previously performed measurements with HEU castings at Y-12. The time correlation between fission events and detections in the plastic scintillators was measured, as well as the time distribution of coincidences between multiple detectors within a 512-ns time window. The measurement results were then compared to MCNP-PoliMi calculations and the previous HEU measurements. Time constants from decay fits to the HEU and DU data were compared to characterize the contributions resulting from multiplication, time-of-flight, and scattering.

Pena, Kirsten E [ORNL; McConchie, Seth M [ORNL; Mihalczo, John T [ORNL

2010-01-01T23:59:59.000Z

191

In Situ Band Gap Engineering of Carbon Nanotubes  

VOLUME 79, NUMBER 11 PHYSICAL REVIEW LETTERS 15SEPTEMBER 1997 In Situ Band Gap Engineering of Carbon Nanotubes Vincent H. Crespi* and Marvin L. Cohen

192

Institute of Computer Science Band preconditioners for the matrix ...  

E-Print Network (OSTI)

Institute of Computer Science. Academy of Sciences of the Czech Republic. Band preconditioners for the matrix-free truncated Newton method. Ladislav Lukan...

193

Substrate-Induced Band-Gap Opening in Epitaxial Graphene  

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

Substrate-Induced Band-Gap Opening in Epitaxial Graphene Print Prospective challengers to silicon, the long-reigning king of semiconductors for computer chips and other electronic...

194

Nanocrystallization in a shear band: An in situ investigation  

Science Conference Proceedings (OSTI)

Preferential nanocrystal formation in shear bands that occurred upon applying a tensile strain on an Al-rich metallic glass has been analyzed in situ in a transmission electron microscope as a function of time after the shear band initiation and as a function of local heating. The results indicate the presence of a transient period before nanocrystal formation sets in, as well as the necessity of thermal activation and further show that nanocrystals developed only within the shear bands. These results support models that explain nanocrystal formation in shear bands based on an increased local mobility.

Wilde, G.; Roesner, H. [Institute of Materials Physics, University of Muenster, Wilhelm-Klemm-Str. 10, 48149 Muenster (Germany)

2011-06-20T23:59:59.000Z

195

Annual Growth Bands in Hymenaea courbaril  

SciTech Connect

One significant source of annual temperature and precipitation data arises from the regular annual secondary growth rings of trees. Several tropical tree species are observed to form regular growth bands that may or may not form annually. Such growth was observed in one stem disk of the tropical legume Hymenaea courbaril near the area of David, Panama. In comparison to annual reference {Delta}{sup 14}C values from wood and air, the {Delta}{sup 14}C values from the secondary growth rings formed by H. courbaril were determined to be annual in nature in this one stem disk specimen. During this study, H. courbaril was also observed to translocate recently produced photosynthate into older growth rings as sapwood is converted to heartwood. This process alters the overall {Delta}{sup 14}C values of these transitional growth rings as cellulose with a higher {Delta}{sup 14}C content is translocated into growth rings with a relatively lower {Delta}{sup 14}C content. Once the annual nature of these growth rings is established, further stable isotope analyses on H. courbaril material in other studies may help to complete gaps in the understanding of short and of long term global climate patterns.

Westbrook, J A; Guilderson, T P; Colinvaux, P A

2004-02-09T23:59:59.000Z

196

Toward Photochemical Water Splitting Using Band-Gap-Narrowed Semiconductors and Transition-Metal Based Molecular Catalysts  

DOE Green Energy (OSTI)

We are carrying out coordinated theoretical and experimental studies of toward photochemical water splitting using band-gap-narrowed semiconductors (BGNSCs) with attached multi-electron molecular water oxidation and hydrogen production catalysts. We focus on the coupling between the materials properties and the H{sub 2}O redox chemistry, with an emphasis on attaining a fundamental understanding of the individual elementary steps in the following four processes: (1) Light-harvesting and charge-separation of stable oxide or oxide-derived semiconductors for solar-driven water splitting, including the discovery and characterization of the behavior of such materials at the aqueous interface; (2) The catalysis of the four-electron water oxidation by dinuclear hydroxo transition-metal complexes with quinonoid ligands, and the rational search for improved catalysts; (3) Transfer of the design principles learned from the elucidation of the DuBois-type hydrogenase model catalysts in acetonitrile to the rational design of two-electron hydrogen production catalysts for aqueous solution; (4) Combining these three elements to examine the function of oxidation catalysts on BGNSC photoanode surfaces and hydrogen production catalysts on cathode surfaces at the aqueous interface to understand the challenges to the efficient coupling of the materials functions.

Muckerman,J.T.; Rodriguez, J.A.; Fujita, E.

2009-06-07T23:59:59.000Z

197

Excitation of Banded Whistler Waves in the Magnetosphere  

Science Conference Proceedings (OSTI)

Banded whistler waves can be generated by the whistler anisotropy instability driven by two bi-Maxwellian electron components with T{sub {perpendicular}}/T{sub {parallel}} > 1 at different T{sub {parallel}} For typical magnetospheric condition of 1 geomagnetic equator (|{lambda}{sub m}| < {approx}10{sup o}) than lower-band waves.

Gary, S. Peter [Los Alamos National Laboratory; Liu, Kaijun [Los Alamos National Laboratory; Winske, Dan [Los Alamos National Laboratory

2012-07-13T23:59:59.000Z

198

Exploring the origin of degenerate doublet bands in $^{106}$Ag  

E-Print Network (OSTI)

The electromagnetic transition probabilities of the excited levels for the two nearly degenerate bands of $^{106}$Ag have been measured using the Doppler Shift Attenuation Method. A comparison with the calculated values using triaxial projected shell model approach indicates that these bands originate from two different quasi-particle configurations but constructed from the same mean-field deformation.

N. Rather; P. Datta; S. Chattopadhyay; S. Roy; S. Rajbanshi; A. Gowsami; G. H. Bhat; J. A. Sheikh; R. Palit; S. Pal; S. Saha; J. Sethi; S. Biswas; P. Singh; H. C. Jain

2013-10-29T23:59:59.000Z

199

Dynamically generated flat-band phases in optical kagome lattices  

E-Print Network (OSTI)

We suggest that a dynamically generated flat-band insulator can be realized using ultracold fermions loaded in an optical kagome lattice by depleting the mobile atoms at one edge of the lattice with a focused laser beam. Since the flat band of the kagome lattice is a high-energy one compared to the dispersive bands, this dynamically generated flat-band insulator is a population-inversion phase with no pumping required to maintain it after its formation. We also show that in a similar setup a dynamical stripe phase emerges in the flat band when two-component fermions with weakly repulsive interactions evolve in a static kagome lattice or even in the absence of interactions when the optical lattice is modulated. Given the broad variety of lattice geometries supporting frustration-induced localized states, our work opens the door to atomtronic devices utilizing geometrical effects and offers new insight on the dynamics of geometrically frustrated systems.

Gia-Wei Chern; Chih-Chun Chien; Massimiliano Di Ventra

2013-07-23T23:59:59.000Z

200

Substrate-Induced Band-Gap Opening in Epitaxial Graphene  

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

Substrate-Induced Band-Gap Opening in Epitaxial Graphene Print Substrate-Induced Band-Gap Opening in Epitaxial Graphene Print Prospective challengers to silicon, the long-reigning king of semiconductors for computer chips and other electronic devices, have to overcome silicon's superb collection of materials properties as well as sophisticated fabrication technologies refined by six decades of effort by materials scientists and engineers. Graphene, one of the latest contenders, has a rather impressive list of features of its own but has lacked a key characteristic of all semiconductors, an energy gap (band gap) in its electronic band structure. A multi-institutional collaboration under the leadership of researchers with Berkeley Lab and the University of California, Berkeley, have now demonstrated that growing an epitaxial film of graphene on a silicon carbide substrate results in a significant band gap, 0.26 electron volts (eV), an important step toward making graphene useful as a semiconductor.

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


201

Substrate-Induced Band-Gap Opening in Epitaxial Graphene  

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

Substrate-Induced Band-Gap Opening in Epitaxial Graphene Print Substrate-Induced Band-Gap Opening in Epitaxial Graphene Print Prospective challengers to silicon, the long-reigning king of semiconductors for computer chips and other electronic devices, have to overcome silicon's superb collection of materials properties as well as sophisticated fabrication technologies refined by six decades of effort by materials scientists and engineers. Graphene, one of the latest contenders, has a rather impressive list of features of its own but has lacked a key characteristic of all semiconductors, an energy gap (band gap) in its electronic band structure. A multi-institutional collaboration under the leadership of researchers with Berkeley Lab and the University of California, Berkeley, have now demonstrated that growing an epitaxial film of graphene on a silicon carbide substrate results in a significant band gap, 0.26 electron volts (eV), an important step toward making graphene useful as a semiconductor.

202

The Donald Hunsberger Wind Band Transcription of Ralph Vaughan Williams' Variations for Brass Band: Historical Profile, Performance Practice, Conducting Considerations, and Corrected Edition.  

E-Print Network (OSTI)

??Abstract The Donald Hunsberger Wind Band Transcription of Ralph Vaughan Williams' Variations for Brass Band: Historical Profile, Performance Practice, Conducting Considerations, and Corrected Edition Gary (more)

Brattin, Gary Thomas

2012-01-01T23:59:59.000Z

203

Transcribing from Brass Band to Wind Band: A Comparison of Approaches and Methods and Subsequent Transcription of "Gypsy Dream" by Peter Graham .  

E-Print Network (OSTI)

??The brass band and wind band had similar repertoires in the nineteenth and early twentieth centuries with marches, dances, solos, and transcriptions written prominently for (more)

Shelton, Brian MacDonald

2010-01-01T23:59:59.000Z

204

Polarimetric Radar Observations in the Ice Region of Precipitating Clouds at C-Band and X-Band Radar Frequencies  

Science Conference Proceedings (OSTI)

Data collected by C-band and X-band radars in northwestern Italy are analyzed to study the behavior of the polarimetric variables in the ice region of precipitating clouds, with special emphasis on the specific differential phase Kdp. It is found ...

R. Bechini; L. Baldini; V. Chandrasekar

2013-05-01T23:59:59.000Z

205

Infrared Radiation Parameterizations for the Minor CO2 Bands and for Several CFC Bands in the Window Region  

Science Conference Proceedings (OSTI)

Fast and accurate parameterizations have been developed for the transmission functions of the CO2 9.4- and 10.4-?m bands, as well as the CFC-11, CFC-12, and CFC-22 bands located in the 8-12-?m region. The parameterizations are based on line-by-...

David P. Kratz; Ming-Dah Chou; Michael M-H. Yan

1993-07-01T23:59:59.000Z

206

Strain tuning of topological band order in cubic semiconductors  

SciTech Connect

We theoretically explore the possibility of tuning the topological order of cubic diamond/zinc-blende semi- conductors with external strain. Based on a simple tight-binding model, we analyze the evolution of the cubic semiconductor band structure under hydrostatic or biaxial lattice expansion, by which a generic guiding princi- ple is established that biaxial lattice expansion can induce a topological phase transition of small band-gap cubic semiconductors via a band inversion and symmetry breaking at point. Using density functional theory cal- culations, we demonstrate that a prototype topological trivial semiconductor, InSb, is converted to a nontrivial topological semiconductor with a 2% 3% biaxial lattice expansion.

Feng, wanxiang [Chinese Academy of Sciences; Zhu, Wenguang [University of Tennessee, Knoxville (UTK); Weitering, Hanno [University of Tennessee, Knoxville (UTK); Stocks, George Malcolm [ORNL; Yao, yugui [Chinese Academy of Sciences; Xiao, Di [ORNL

2012-01-01T23:59:59.000Z

207

X-Band Photonic Band-Gap Accelerator Structure Breakdown Experiment  

SciTech Connect

In order to understand the performance of photonic band-gap (PBG) structures under realistic high gradient, high power, high repetition rate operation, a PBG accelerator structure was designed and tested at X band (11.424 GHz). The structure consisted of a single test cell with matching cells before and after the structure. The design followed principles previously established in testing a series of conventional pillbox structures. The PBG structure was tested at an accelerating gradient of 65 MV/m yielding a breakdown rate of two breakdowns per hour at 60 Hz. An accelerating gradient above 110 MV/m was demonstrated at a higher breakdown rate. Significant pulsed heating occurred on the surface of the inner rods of the PBG structure, with a temperature rise of 85 K estimated when operating in 100 ns pulses at a gradient of 100 MV/m and a surface magnetic field of 890 kA/m. A temperature rise of up to 250 K was estimated for some shots. The iris surfaces, the location of peak electric field, surprisingly had no damage, but the inner rods, the location of the peak magnetic fields and a large temperature rise, had significant damage. Breakdown in accelerator structures is generally understood in terms of electric field effects. These PBG structure results highlight the unexpected role of magnetic fields in breakdown. The hypothesis is presented that the moderate level electric field on the inner rods, about 14 MV/m, is enhanced at small tips and projections caused by pulsed heating, leading to breakdown. Future PBG structures should be built to minimize pulsed surface heating and temperature rise.

Marsh, Roark A.; /MIT /MIT /NIFS, Gifu /JAERI, Kyoto /LLNL, Livermore; Shapiro, Michael A.; Temkin, Richard J.; /MIT; Dolgashev, Valery A.; Laurent, Lisa L.; Lewandowski, James R.; Yeremian, A.Dian; Tantawi, Sami G.; /SLAC

2012-06-11T23:59:59.000Z

208

Interface Constraints on Shear Band Patterns in Bonded Metallic ...  

Science Conference Proceedings (OSTI)

All FEM results were analyzed on deformed mesh at maximum load. ... Red curves in Figure 3 (a) and (b) represent the shear band patterns on the top surface of...

209

WI-TRIBE-STOCKBRIDGE-MUNSEE BAND OF MOHICAN INDIANS  

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

WI-TRIBE-STOCKBRIDGE-MUNSEE BAND OF MOHICAN INDIANS WI-TRIBE-STOCKBRIDGE-MUNSEE BAND OF MOHICAN INDIANS Location: Tribe WI-TRIBE- STOCKBRIDGE- MUNSEE BAND OF MOHICAN INDIANS WI American Recovery and Reinvestment Act: Proposed Action or Project Description The Stockbridge-Munsee Band of Mohican Indians proposes to conduct energy efficient audits of residential and commerical buildings. Conditions: None Categorical Exclusion(s) Applied: A9, B5.1 *-For the complete DOE National Environmental Policy Act regulations regarding categorical exclusions, see Subpart D of 10 CFR10 21 This action would not: threaten a violation of applicable statutory, regulatory, or permit requirements for environment, safety, and health, including DOE and/or Executive Orders; require siting, construction, or major expansion of waste storage, disposal, recovery, or

210

CA-TRIBE-TUOLUMNE BAND OF MEWUK INDIANS  

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

TRIBE-TUOLUMNE BAND OF MEWUK INDIANS TRIBE-TUOLUMNE BAND OF MEWUK INDIANS Location: Tribe CA-TRIBE- TUOLUMNE BAND OF MEWUK INDIANS CA American Recovery and Reinvestment Act: Proposed Action or Project Description The Tuolumne Band of MeWuk Indians proposes to reduce their fossil fuel emissions through increased energy efficiency and the implementation of renewable energy where applicable. Currently, the Tribe has contracted with the Renewable and Appropriate Energy Laboratory (RAEL) of the University of California, Berkeley, to identify the most cost-effective opportunities for increased energy efficiency and renewable energy technologies. The Tribe proposes to use a portion of the funding to allocate funds to RAEL for technical consultant services to assist the Tribe in identifying, prioritizing, and coordinating site specific

211

ND-TRIBE-TURTLE MOUNTAIN BAND OF CHIPPEWA  

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

ND-TRIBE-TURTLE MOUNTAIN BAND OF CHIPPEWA ND-TRIBE-TURTLE MOUNTAIN BAND OF CHIPPEWA Energy Efficiency and Conservation Block Grant Program Location: Tribe ND-TRIBE-TURTLE MOUNTAIN BAND OF CHIPPEWA ND American Recovery and Reinvestment Act: Proposed Action or Project Description The Turtle Mountain Band of Chippewa Indians of North Dakota propose to 1) explore the potential for wind energy development on the Reservation by soliciting expertise from an engineering company to determine the best option for tapping wind energy on the reservation for its public buildings and seek legal expertise to study legal barriers that may exist; 2) conduct energy audits and a feasibility study to determine if several sizeable public buildings have the potential to be sites for either district heating or a

212

Building a TropicalExtratropical Cloud Band Metbot  

Science Conference Proceedings (OSTI)

An automated cloud band identification procedure is developed that captures the meteorology of such events over southern Africa. This metbot is built upon a connected component labeling method that enables blob detection in various atmospheric ...

Neil C. G. Hart; Chris J. C. Reason; Nicolas Fauchereau

2012-12-01T23:59:59.000Z

213

Raindrop Size Distributions and the Radar Bright Band  

Science Conference Proceedings (OSTI)

The relationship between raindrop size distribution, measured with a disdrometer, and a radar parameter of the melting-layer bright band is investigated. The data, obtained in July 1993 in Switzerland, cover 120 h of precipitation. A good ...

A. Huggel; W. Schmid; A. Waldvogel

1996-10-01T23:59:59.000Z

214

Design of photonic crystals with multiple and combined band gaps  

E-Print Network (OSTI)

We present and use an algorithm based on convex conic optimization to design two-dimensional photonic crystals with large absolute band gaps. Among several illustrations we show that it is possible to design photonic ...

Men, H.

215

A Reexamination of the Mechanisms Responsible for Banded Precipitation  

Science Conference Proceedings (OSTI)

The processes responsible for a banded snowfall region during a December 1997 East Coast storm are examined. Conventional data plus a numerical simulation with the fifth-generation Pennsylvania State UniversityNCAR Mesoscale Model (MM5) are ...

John H. E. Clark; Richard P. James; Richard H. Grumm

2002-12-01T23:59:59.000Z

216

On the Dynamics of Hawaiian Cloud Bands: Island Forcing  

Science Conference Proceedings (OSTI)

This study focuses on basic island scale forcing mechanisms for the formation and evolution of a band cloud typically present upwind of the island of Hawaii. By means of numerical experiments and verification of our results against observations ...

Piotr K. Smolarkiewicz; Roy M. Rasmussen; Terry L. Clark

1988-07-01T23:59:59.000Z

217

Commissioning the New LCLS X-Band Transverse Deflecting Cavity...  

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

Commissioning the New LCLS X-Band Transverse Deflecting Cavity with Femtosecond Resolution Wednesday, July 31, 2013 - 3:00pm SLAC, Redtail Hawk Conference Room 108A Yuantao Ding...

218

Assessing Snowfall Rates from X-Band Radar Reflectivity Measurements  

Science Conference Proceedings (OSTI)

Realistic aggregate snowflake models and experimental snowflake size distribution parameters are used to derive X-band power-law relations between the equivalent radar reflectivity factor Ze and the liquid equivalent snowfall precipitation rate S ...

Sergey Y. Matrosov; Carroll Campbell; David Kingsmill; Ellen Sukovich

2009-11-01T23:59:59.000Z

219

Characterization of Novel Semiconductor Alloys for Band Gap Engineering  

E-Print Network (OSTI)

parameter for the lower-energy matrix like band. The fullthe optical matrix is constant with energy and given by: 2 menergy of the host semiconductor. Diagalization of the matrix

Broesler, Robert Joseph

2010-01-01T23:59:59.000Z

220

Stability review of SLAC's L-band sheet beam klystron  

Science Conference Proceedings (OSTI)

A review of L-band sheet beam development at SLAC National Accelerator Laboratory's Klystron Department. The measured current density profile of a 40:1 elliptical beam is presented. A review of instabilities discovered while simulating the klystron are ...

A. Jensen; C. Adolphsen; K. Bane; A. Burke; A. Haase; E. Jongewaard; Z. Li; D. Martin; D. Sprehn; G. Stupakov

2011-02-01T23:59:59.000Z

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


221

Dynamics of Convectively Driven Banded Jets in the Laboratory  

Science Conference Proceedings (OSTI)

The banded organization of clouds and zonal winds in the atmospheres of the outer planets has long fascinated observers. Several recent studies in the theory and idealized modeling of geostrophic turbulence have suggested possible explanations ...

Peter L. Read; Yasuhiro H. Yamazaki; Stephen R. Lewis; Paul D. Williams; Robin Wordsworth; Kuniko Miki-Yamazaki; Jol Sommeria; Henri Didelle

2007-11-01T23:59:59.000Z

222

Feasibility of band gap engineering of pyrite FeS?  

E-Print Network (OSTI)

We use first-principles computations to investigate whether the band gap of pyrite FeS? can be increased by alloying in order to make it a more effective photovoltaic material. In addition to the isostructural compounds ...

Sun, Ruoshi

223

An X-Band Gun Test Area at SLAC  

SciTech Connect

The X-Band Test Area (XTA) is being assembled in the NLCTA tunnel at SLAC to serve as a test facility for new RF guns. The first gun to be tested will be an upgraded version of the 5.6 cell, 200 MV/m peak field X-band gun designed at SLAC in 2003 for the Compton Scattering experiment run in ASTA. This new version includes some features implemented in 2006 on the LCLS gun such as racetrack couplers, increased mode separation and elliptical irises. These upgrades were developed in collaboration with LLNL since the same gun will be used in an injector for a LLNL Gamma-ray Source. Our beamline includes an X-band acceleration section which takes the electron beam up to 100 MeV and an electron beam measurement station. Other X-Band guns such as the UCLA Hybrid gun will be characterized at our facility.

Limborg-Deprey, C.; Adolphsen, C.; Chu, T.S.; Dunning, M.P.; Jobe, R.K.; Jongewaard, E.N.; Hast, C.; Vlieks, A.E.; Wang, F.; Walz, D.R.; /SLAC; Marsh, R.A.; Anderson, S.G.; Hartemann, F.V.; Houck, T.L.; /LLNL, Livermore

2012-09-07T23:59:59.000Z

224

Generation of Moving Spiral Bands in Tropical Cyclones  

Science Conference Proceedings (OSTI)

A theory based on the shallow water equation is developed to explain the generation of moving spiral-banded structures in tropical cyclones. The theory proposes that fluctuation of the vorticity distribution in the compact core region can act as ...

K. C. Chow; Kwing L. Chan; Alexis K. H. Lau

2002-10-01T23:59:59.000Z

225

Engineering the Electronic Band Structure for Multiband Solar ...  

Engineering the Electronic Band Structure for Multiband Solar Cells N. Lopez,1 L.A. Reichertz,1,2 K.M. Yu,1 K. Campman,3 and W. Walukiewicz1,2 ...

226

Robust Optimization under Multi-band Uncertainty Part I: Theory ?  

E-Print Network (OSTI)

in water distribution networks [30] or the design of power grids [24]. Since the ...... is assigned by S to exactly one band, f also satisfies flow conservation in each.

227

Dissociation of Molecular Oxygen in the Schumann-Runge Bands  

Science Conference Proceedings (OSTI)

Oscillator strengths and predissociation linewidths deduced in recent studies predict a dissociation rate for O2 in the Schumann-Runge bands which is significantly larger in the upper stratosphere and lower mesosphere than previously believed. ...

J. E. Frederick; R. D. Hudson

1980-05-01T23:59:59.000Z

228

Lidar Observations of Banded Convection during BLX83  

Science Conference Proceedings (OSTI)

Lidar observations of clear-air convection during the 1983 Boundary Layer Experiment (BLX83) reveal the presence of elongated, parallel regions of updrafts marked by enhanced aerosol backscattering. These linear (banded) aerosol structures were ...

R. A. Ferrare; J. L. Schols; E. W. Eloranta; R. Coulter

1991-03-01T23:59:59.000Z

229

Estimation of Cloud Content by W-Band Radar  

Science Conference Proceedings (OSTI)

W-band (3.2-mm) radars are seeing increasing utilization as a result of improving microwave technologies and the increased research emphasis being given to nonprecipitating clouds. This niche is exemplified by the study of the radiatively ...

Kenneth Sassen; Liang Liao

1996-06-01T23:59:59.000Z

230

Global estimation of precipitation using opaque microwave bands  

E-Print Network (OSTI)

This thesis describes the use of opaque microwave bands for global estimation of precipitation rate. An algorithm was developed for estimating instantaneous precipitation rate for the Advanced Microwave Sounding Unit (AMSU) ...

Chen, Frederick Wey-Min, 1975-

2004-01-01T23:59:59.000Z

231

Log-parabolic spectra and particle acceleration in blazars. III: SSC emission in the TeV band from Mkn 501  

E-Print Network (OSTI)

Curved broad-band spectral distributions of non-thermal sources like blazars are described well by a log-parabolic (LP) law where the second degree term measures the curvature. LP energy spectra can be obtained for relativistic electrons by means of a statistical acceleration mechanism whose probability of acceleration depends on energy. In this paper we compute the spectra radiated by an electron population via synchrotron (S) and Synchro-Self Compton(SSC) processes to derive the relations between the LP parameters. These spectra were obtained by means of an accurate numerical code. We found that the ratio between the curvature parameters of the S spectrum to that of the electrons is equal to about 0.2 instead of 0.25, the value foreseen in the delta approximation. Inverse Compton spectra are also intrinsically curved and can be approximated by a log-parabola only in limited ranges. The curvature parameter, estimated around the SED peak, may vary from a lower value than that of the S spectrum up to that of emitting electrons depending on whether the scattering is in the Thomson or in the Klein-Nishina regime. We applied this analysis to computing the SSC emission from the BL Lac object Mkn 501 during the large flare of April 1997. We fit simultaneous BeppoSAX and CAT data and reproduced intensities and spectral curvatures of both components with good accuracy. The large curvature observed in the TeV range was found to be mainly intrinsic, and therefore did not require a large pair production absorption against the extragalactic background. We regard this finding as an indication that the Universe is more transparent at these energies than previously assumed by several models found in the literature. This conclusion is supported by recent detection of two relatively high redshift blazars with H.E.S.S.

E. Massaro; A. Tramacere; M. Perri; P. Giommi; G. Tosti

2005-11-23T23:59:59.000Z

232

3-D Electrical Resistivity Tomography for Cliff Stability Assessment at Pointe du Hoc in Normandy, France  

E-Print Network (OSTI)

Pointe du Hoc overlooking the English Channel in Normandy, France was host to one of the most important military engagements of World War II. While the site is a valuable historic cultural resource, it is vulnerable to cliff collapses that already have endangered the observation post and Rudder?s command post. The observation post has been closed to visitors for some time due to safety concerns. Geophysical techniques have been used increasingly in recent years for slope stability investigation purposes. The objective of this study is to apply advanced 3?D resistivity tomography toward a detailed site stability assessment with special attention to the two at-risk buildings. 3?D resistivity tomography datasets at Pointe du Hoc in the presence of extreme topography and dense cultural clutter have been successfully acquired, inverted, and interpreted. The cliff stability in the areas around the two at?risk buildings has been analyzed. A hazard assessment scheme has been designed in which regions of high resistivity are interpreted as zones of open, dry fractures with a moderate mass movement potential. Regions of low resistivity are zones of wet, clay?filled fractures with a high mass movement potential. The observation post tomography results indicate that the highest mass movement hazard appears to be associated with the marine caverns at the base of the cliff that are positioned at the point of strongest wave attack. These caverns likely occupy the future site of development of a sea arch which will definitely threaten the observation post building. A high probability of a soil wedge failure is on the east?facing cliff edge close to the observation post that could damage or destroy the building. The mass movement potential at the Rudder?s command post area is low to moderate. The greatest risk is associated with soil wedge failures at the top of the cliffs. The resistivity geophysical data add great value to the natural geohazard assessment at Pointe du Hoc and constitute an integral component of an interdisciplinary approach to the problem of cultural resource preservation at the site. Geophysics is a non?invasive and relatively inexpensive technology that provides unique constraints which are unobtainable using traditional engineering geology methods for site characterization. However, the technology is difficult to master and the inherent limitations must be carefully understood to ensure a reliable geotechnical interpretation.

Udphuay, Suwimon

2008-12-01T23:59:59.000Z

233

W-Band ARM Cloud Radar - Specifications and Design  

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

W-Band ARM Cloud Radar - Specifications and Design W-Band ARM Cloud Radar - Specifications and Design K. B. Widener Pacific Northwest National Laboratory Richland, Washington J. B. Mead ProSensing, Inc. Amherst, Massachusetts Abstract The Atmospheric Radiation Measurement (ARM) Program and ProSensing, Inc. have teamed to develop and deploy the W-band ARM Cloud Radar (WACR) at the SGP central facility. The WACR will be co- located with the ARM millimeter wave cloud radar (MMCR) with planned operation to begin in early 2005. This radar will complement the measurements of the MMCR and will aid in filtering out insect contamination in the data. In this poster we present the design goals, expected performance characteristics, and the detailed design for the WACR. Introduction The MMCR has been operating at the Southern Great Plains (SGP) site since 1998. It has proven to be

234

Correlation of conductivity and angle integrated valence band photoemission  

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

Correlation of conductivity and angle integrated valence band photoemission Correlation of conductivity and angle integrated valence band photoemission characteristics in single crystal iron perovskites for 300 K < T < 800 K: Comparison of surface and bulk sensitive methods Title Correlation of conductivity and angle integrated valence band photoemission characteristics in single crystal iron perovskites for 300 K < T < 800 K: Comparison of surface and bulk sensitive methods Publication Type Journal Article Year of Publication 2010 Authors Braun, Artur, Bongjin S. Mun, Yun Sun, Z. Liu, Oliver Gröning, R. Mäder, Selma Erat, Xueyuan Zhang, Samuel S. Mao, Ekaterina Pomjakushina, Kazimierz Conder, and Thomas Graule Journal Journal of Electron Spectroscopy and Related Phenomena Volume 181 Issue 1 Pagination 56-62 Date Published 07/2013

235

W-band ARM Cloud Radar (WACR) Update and Status  

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

W-band ARM Cloud Radar (WACR) Update and Status W-band ARM Cloud Radar (WACR) Update and Status PopStefanija, Ivan ProSensing, Inc. Mead, James ProSensing Inc. Widener, Kevin Pacific Northwest National Laboratory Category: Instruments Two W-band ARM Cloud Radars (WACR) have been developed for the SGP and the ARM Mobile Facility (AMF) by ProSensing. The SGP WACR was successfully deployed in the same shelter as the MMCR in 2005. It is currently collecting co-polarization and cross-polarization spectral moments (reflectivity, Doppler velocity, and spectral width) along with spectra data. The AMF WACR will be deployed with the AMF in Niamey, Niger early in 2006. We will present ingested WACR data formats available from the ARM Archive, a selected comparisons of WACR and MMCR data at SGP, and data from

236

Molecular bands in extremely metal-poor stars. Granulation effects  

E-Print Network (OSTI)

The bands of diatomic molecules are important abundance indicators, especially in metal-poor stars, where they are still measurable in metallicity regimes where the atomic lines of their constituting metallic elements have become vanishingly small. In order to use them for abundance determinations it is imperative to understand the formation of these bands. In this contribution we report on our results obtained using CO5BOLD hydrodynamical simulations. Some effects that are qualitatively different from what found in 1D computations are highlighted. Due to the large number of lines that form the bands, their spectrum synthesis is computationally challenging. We discuss some of the computational strategies we employed to parallelise the computation and possible future developments.

Bonifacio, Piercarlo; Ludwig, Hans-Gnter; Spite, Monique; Plez, Bertrand; Steffen, Matthias; Spite, Franois

2013-01-01T23:59:59.000Z

237

Numerical method for shear bands in ductile metal with inclusions  

SciTech Connect

A numerical method for mesoscale simulation of high strain-rate loading of ductile metal containing inclusions is described. Because of small-scale inhomogeneities, such a composite material is prone to localized shear deformation (adiabatic shear bands). The modeling framework is the Generalized Method of Cells of Paley and Aboudi [Mech. Materials, vol. 14, pp. /27-139, 1992], which ensures that the micromechanical response of the material is reflected in the behavior of the composite at the mesoscale. To calculate the effective plastic strain rate when shear bands are present, the analytic and numerical analysis of shear bands by Glimm, Plohr, and Sharp [Mech. Materials, vol. 24, pp. 31-41, 1996] is adapted and extended.

Plohr, Jee Yeon N [Los Alamos National Laboratory; Plohr, Bradley J [Los Alamos National Laboratory

2010-01-01T23:59:59.000Z

238

Le franais langue trangre dans la formation linguistique des apprentis guides touristiques vnzuliens : pistes pdagogiques partir de l'analyse du discours.  

E-Print Network (OSTI)

??Notre tude s'inscrit dans les recherches en didactique des langues. Elle vise faire des propositions pdagogiques pour l'enseignement du franais langue trangre dans la (more)

Machado key, Yolibeth

2012-01-01T23:59:59.000Z

239

Numericl modeling of graded band gap CIGS solar cells  

DOE Green Energy (OSTI)

The high efficiency reported recently by NREL for CIGS solar cells demonstrates the potential of band gap grading in producing high efficiency thin film solar cells. In order to reap the full benefits of this design strategy, a clear understanding of the fundamental device physics of these structures is needed. The purpose of this paper is to examine the role grading of the band gap plays in achieving high conversion efficiencies. To aid in this examination, a detailed numerical device simulation program, ADEPT, is used.

Gray, J.L.; Lee, Youn Jung

1994-12-31T23:59:59.000Z

240

Ultra high vacuum broad band high power microwave window  

DOE Patents (OSTI)

An improved high vacuum microwave window has been developed that utilizes high density polyethylene coated on two sides with SiOx, SiNx, or a combination of the two. The resultant low dielectric and low loss tangent window creates a low outgassing, low permeation seal through which broad band, high power microwave energy may be passed. No matching device is necessary and the sealing technique is simple. The features of the window are broad band transmission, ultra-high vacuum compatibility with a simple sealing technique, low voltage standing wave ratio, high power transmission and low cost.

Nguyen-Tuong, Viet (Seaford, VA); Dylla, III, Henry Frederick (Yorktown, VA)

1997-01-01T23:59:59.000Z

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


241

Ultra high vacuum broad band high power microwave window  

DOE Patents (OSTI)

An improved high vacuum microwave window has been developed that utilizes high density polyethylene coated on two sides with SiOx, SiNx, or a combination of the two. The resultant low dielectric and low loss tangent window creates a low outgassing, low permeation seal through which broad band, high power microwave energy may be passed. No matching device is necessary and the sealing technique is simple. The features of the window are broad band transmission, ultra-high vacuum compatibility with a simple sealing technique, low voltage standing wave ratio, high power transmission and low cost. 5 figs.

Nguyen-Tuong, V.; Dylla, H.F. III

1997-11-04T23:59:59.000Z

242

Energy distribution of nonequilibrium electrons and optical phonons in GaAs under band-to-band pumping by intense short pulses of light  

SciTech Connect

Deviation from the Fermi distribution of nonequilibrium electrons and distribution of 'hot' optical phonons in GaAs under band-to-band pumping by picosecond pulses of light are calculated.

Altybaev, G. S.; Kumekov, S. E., E-mail: skumekov@mail.ru; Mahmudov, A. A. [Satpaev Kazakh National Technical University (Kazakhstan)

2009-03-15T23:59:59.000Z

243

Status Report and Proposal Concerning the Supply of Depleted Uranium Metal Bands for a Particle Detector  

E-Print Network (OSTI)

Status Report and Proposal Concerning the Supply of Depleted Uranium Metal Bands for a Particle Detector

1980-01-01T23:59:59.000Z

244

Amplitude and phase?modulation (AM?PM) wide?band photothermal spectrometry. II. Experiment  

Science Conference Proceedings (OSTI)

Amplitude and phase?modulation (AM?PM) wide?band photothermal spectrometry is experimentally demonstrated

J. F. Power

1990-01-01T23:59:59.000Z

245

Rain Attenuation Prediction Model for Lagos at Millimeter Wave Bands  

Science Conference Proceedings (OSTI)

Rain Attenuation Prediction Model for Lagos at Millimeter Wave bands is the subject of this work. Lagos (geog. Lat. 6.350N and Long. 3.20E), is a coastal station in the rain forest area in the South-Western Nigeria with an altitude of 380 ...

Abayomi Isiaka Yussuff; Nor Hisham Haji Khamis

246

Virtual InfiniBand clusters for HPC clouds  

Science Conference Proceedings (OSTI)

High Performance Computing (HPC) employs fast interconnect technologies to provide low communication and synchronization latencies for tightly coupled parallel compute jobs. Contemporary HPC clusters have a fixed capacity and static runtime environments; ... Keywords: HPC, InfiniBand, cloud computing, cluster, virtualization

Marius Hillenbrand; Viktor Mauch; Jan Stoess; Konrad Miller; Frank Bellosa

2012-04-01T23:59:59.000Z

247

Hexagonal CNN and its applications in sphalerite banding texture simulation  

Science Conference Proceedings (OSTI)

A cellular nonlinear network (CNN) has been developed in the literature to characterize complexity, especially for reaction-diffusion dynamic systems. This CNN includes models that describe periodic precipitation and banding pattern formation in minerals. ... Keywords: Coupling law, Hexagonal coordinate system, Liesegang pattern, Sphalerite

Deyi Xu; Qiuming Cheng; Zhijing Wang

2010-07-01T23:59:59.000Z

248

Polarimetric Attenuation Correction in Heavy Rain at C Band  

Science Conference Proceedings (OSTI)

The ability of C-band polarimetric radar to account for strong attenuation/differential attenuation is demonstrated in two cases of heavy rain that occurred in the Chicago, Illinois, metropolitan area on 5 August 2008 and in central Oklahoma on ...

Ji-Young Gu; A. Ryzhkov; P. Zhang; P. Neilley; M. Knight; B. Wolf; Dong-In Lee

2011-01-01T23:59:59.000Z

249

Modeling Multi-Bunch X-band Photoinjector Challenges  

SciTech Connect

An X-band test station is being developed at LLNL to investigate accelerator optimization for future upgrades to mono-energetic gamma-ray technology at LLNL. The test station will consist of a 5.5 cell X-band rf photoinjector, single accelerator section, and beam diagnostics. Of critical import to the functioning of the LLNL X-band system with multiple electron bunches is the performance of the photoinjector. In depth modeling of the Mark 1 LLNL/SLAC X-band rf photoinjector performance will be presented addressing important challenges that must be addressed in order to fabricate a multi-bunch Mark 2 photoinjector. Emittance performance is evaluated under different nominal electron bunch parameters using electrostatic codes such as PARMELA. Wake potential is analyzed using electromagnetic time domain simulations using the ACE3P code T3P. Plans for multi-bunch experiments and implementation of photoinjector advances for the Mark 2 design will also be discussed.

Marsh, R A; Anderson, S G; Gibson, D J; Barty, C J

2012-05-09T23:59:59.000Z

250

A high-power L-band RF window  

E-Print Network (OSTI)

June. 2001. [3] "700 MHz Window R&D at LBNL", R. Rimmer et.Testing of PEP-II RF Cavity Windows", M. Neubauer et. al. ,A HIGH-POWER L-BAND RF WINDOW* R.A. Rimmer , G. Koehler,

2001-01-01T23:59:59.000Z

251

X-Band Polarimetric Weather Radar Observations of a Hailstorm  

Science Conference Proceedings (OSTI)

This paper presents an analysis of a hail event that occurred 27 May 2012 over Brignoles, located in southeastern France. The event was observed by an X-band polarimetric radar located in Mont Maurel, 75 km northeast of the hailstorm. Lightning ...

Jordi Figueras i Ventura; Franoise Honor; Pierre Tabary

2013-09-01T23:59:59.000Z

252

L'valuation de l'implantation d'une nouvelle dmarche d'encadrement des stages : le cas du baccalaurat en ducation prscolaire et en enseignement primaire (BEPEP).  

E-Print Network (OSTI)

??Les annes 90 et le dbut du millnaire sont caractriss par de nombreux dveloppements en ducation, dont le renouveau pdagogique pilot par le MELS, anciennement (more)

Grenier, Isabelle

2008-01-01T23:59:59.000Z

253

Induced electroencephalogram oscillations during source memory: Familiarity is reflected in the gamma band, recollection in the theta band  

Science Conference Proceedings (OSTI)

Modulations of oscillatory electroencephalogram (EEG) activity in the induced gamma and theta frequency ranges (induced gamma and theta band responses; iGBRs: >30 Hz; iTBRs: ?6 Hz) have been associated with retrieval of information from long-term ...

Thomas Gruber; Dimitris Tsivilis; Claire-Marie Giabbiconi; Matthias M. Mller

2008-06-01T23:59:59.000Z

254

ASSIGNMENT OF 5069 A DIFFUSE INTERSTELLAR BAND TO HC{sub 4}H{sup +}: DISAGREEMENT WITH LABORATORY ABSORPTION BAND  

SciTech Connect

Krelowski et al. have reported a weak, diffuse interstellar band (DIB) at 5069 A which appears to match in both mid-wavelength and width the A {sup 2}{Pi}{sub u}-X {sup 2}{Pi}{sub g} gas-phase origin absorption band of HC{sub 4}H{sup +}. Here, we present laboratory rotational profiles at low temperatures which are then compared with the 5069 A DIB using {approx}0.1 and 0.3 A line widths based on a realistic line-of-sight interstellar velocity dispersion. Neither the band shape nor the wavelength of the maximum absorption match, which makes the association of the 5069 A DIB with HC{sub 4}H{sup +} unlikely. The magnetic dipole transition X {sup 2}{Pi}{sub g} {Omega} = 1/2{yields}X {sup 2}{Pi}{sub g} {Omega} = 3/2 within the ground electronic state which competes with collisional excitation is also considered. In addition, we present the laboratory gas-phase spectrum of the A {sup 2}{Pi}{sub u}-X {sup 2}{Pi}{sub g} transition of HC{sub 4}H{sup +} measured at 25 K in an ion trap and identify further absorption bands at shorter wavelengths for comparison with future DIB data.

Maier, J. P.; Chakrabarty, S.; Mazzotti, F. J.; Rice, C. A.; Dietsche, R. [Department of Chemistry, University of Basel, Klingelbergstr. 80, CH-4056 Basel (Switzerland); Walker, G. A. H. [1234 Hewlett Place, Victoria, BC V8S 4P7 (Canada); Bohlender, D. A., E-mail: j.p.maier@unibas.ch [National Research Council of Canada, Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, BC V9E 2E7 (Canada)

2011-03-10T23:59:59.000Z

255

Nouveaux cahiers de linguistique franaise 27(2006), 241-262 Le raisonnement causal : de la pragmatique du discours  

E-Print Network (OSTI)

Nouveaux cahiers de linguistique française 27(2006), 241-262 Le raisonnement causal : de la pragmatique du discours à la pragmatique expérimentale Jacques Moeschler Département de Linguistique abordés de ma- #12;242 Nouveaux cahiers de linguistique française 27 nière assez différente par les

Institut des Sciences Cognitives, CNRS

256

Electrotechnique du Futur 2005, Grenoble 14-15 septembre 2005, proc. CDROM Prdimensionnement d'un houlo-gnrateur pendulaire  

E-Print Network (OSTI)

crête de 250 kW (donc un rapport PMAX/ de 1.25) alors que sans écrêtage la puissance moyenne n of electricity supply of an Atlantic island by off-shore wind turbines and wave energy converters associated), nous obtenons une puissance moyenne de 120 kW (42 MJ ou 12 kWh sur les 360 s du cycle étudié) et une

Paris-Sud XI, Université de

257

Dans le voisinage de Joachimsthal, situ dans la partie la plus leve du versant sud, les filons les plus  

E-Print Network (OSTI)

composition de ces minerais d'urane et il se produit des arséniates, des sulfates d'uranium, etc. La mine de Weisser Hirsch près de Schnccbcrg (Saxe) est remarquable par les espèces minéralogiques ce qui précède que si l'uranium est par- fois localisé dans quelques régions du globe, où il existe

Paris-Sud XI, Université de

258

Topological Flat Band Models and Fractional Chern Insulators  

E-Print Network (OSTI)

Topological insulators and their intriguing edge states can be understood in a single-particle picture and can as such be exhaustively classified. Interactions significantly complicate this picture and can lead to entirely new insulating phases, with an altogether much richer and less explored phenomenology. Most saliently, lattice generalizations of fractional quantum Hall states, dubbed fractional Chern insulators, have recently been predicted to be stabilized by interactions within nearly dispersionless bands with non-zero Chern number, $C$. Contrary to their continuum analogues, these states do not require an external magnetic field and may potentially persist even at room temperature, which make these systems very attractive for possible applications such as topological quantum computation. This review recapitulates the basics of tight-binding models hosting nearly flat bands with non-trivial topology, $C\

Emil J. Bergholtz; Zhao Liu

2013-08-01T23:59:59.000Z

259

On The Shape of the Betatron Side-Band  

SciTech Connect

The shape of the betatron side-band is sensitive to the transverse rms size of colliding bunches. It is shown in this note that the transverse rms of the beam can be inferred from the shape of the betatron line. Analysis is presented which takes into account the tilt angle of the beams at the collision point and their offset. The authors discuss other effects which can change the shape of the betatron line in the spectrum.

Heifets, samuel A

2000-06-20T23:59:59.000Z

260

Graphene on Ru(0001): Evidence for two graphene band structures  

Science Conference Proceedings (OSTI)

High-resolution photoemission illustrates that the band structure of graphene on Ru(0001) exhibits a well-defined splitting. This splitting is largest with the graphene directly on the Ru(0001) substrate, whereas with a chemisorbed oxygen spacer layer between the graphene and the metal substrate, this splitting is considerably reduced. This splitting is attributed to a combination of chemical interactions between graphene and Ru(0001) and to screening of the former by the latter, not spin-orbit coupling.

Katsiev K.; Vescovo E.; Losovyj, Y.; Zhou, Z.; Liu, L.; Dowben, P.A.; Goodman, D.W.

2012-05-03T23:59:59.000Z

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


261

Graphene on Ru(0001): Evidence for two graphene band structures  

Science Conference Proceedings (OSTI)

High-resolution photoemission illustrates that the band structure of graphene on Ru(0001) exhibits a well-defined splitting. This splitting is largest with the graphene directly on the Ru(0001) substrate, whereas with a chemisorbed oxygen spacer layer between the graphene and the metal substrate, this splitting is considerably reduced. This splitting is attributed to a combination of chemical interactions between graphene and Ru(0001) and to screening of the former by the latter, not spin-orbit coupling.

Katsiev, Khabibulakh; Losovyj, Yaroslav; Zhou, Zihao; Vescovo, E; Liu, L.; Dowben, P. A.; Goodman, D. Wayne

2012-01-01T23:59:59.000Z

262

Multi-band OFDM UWB receiver with narrowband interference suppression  

E-Print Network (OSTI)

A multi band orthogonal frequency division multiplexing (MB-OFDM) compatible ultra wideband (UWB) receiver with narrowband interference (NBI) suppression capability is presented. The average transmit power of UWB system is limited to -41.3 dBm/MHz in order to not interfere existing narrowband systems. Moreover, it must operate even in the presence of unintentional radiation of FCC Class-B compatible devices. If this unintentional radiation resides in the UWB band, it can jam the communication. Since removing the interference in digital domain requires higher dynamic range of analog front-end than removing it in analog domain, a programmable analog notch filter is used to relax the receiver requirements in the presence of NBI. The baseband filter is placed before the variable gain amplifier (VGA) in order to reduce the signal swing at the VGA input. The frequency hopping period of MB-OFDM puts a lower limit on the settling time of the filter, which is inverse proportional to notch bandwidth. However, notch bandwidth should be low enough not to attenuate the adjacent OFDM tones. Since these requirements are contradictory, optimization is needed to maximize overall performance. Two different NBI suppression schemes are tested. In the first scheme, the notch filter is operating for all sub-bands. In the second scheme, the notch filter is turned on during the sub-band affected by NBI. Simulation results indicate that the UWB system with the first and the second suppression schemes can handle up to 6 dB and 14 dB more NBI power, respectively. The results of this work are not limited to MB-OFDM UWB system, and can be applied to other frequency hopping systems.

Kelleci, Burak

2007-12-01T23:59:59.000Z

263

Recherche du boson de Higgs dans le canal $WH$ et tude de la production $Wb\\bar{b}$ dans les collisions $p\\bar{p}$ 1.96 TeV dans l'exprience $D0$ auprs du Tevatron de Fermilab.  

E-Print Network (OSTI)

??L'introduction du boson de Higgs permet de rsoudre le problme de l'origine de la masse des particules dans le modle standard. A ce jour, il (more)

Beauceron, Stphanie

2004-01-01T23:59:59.000Z

264

Implications of mercury interactions with band-gap semiconductor oxides  

SciTech Connect

Titanium dioxide is a well-known photooxidation catalyst. It will oxidize mercury in the presence of ultraviolet light from the sun and oxygen and/or moisture to form mercuric oxide. Several companies manufacture self-cleaning windows. These windows have a transparent coating of titanium dioxide. The titanium dioxide is capable of destroying organic contaminants in air in the presence of ultraviolet light from the sun, thereby keeping the windows clean. The commercially available self-cleaning windows were used to sequester mercury from oxygennitrogen mixtures. Samples of the self-cleaning glass were placed into specially designed photo-reactors in order to study the removal of elemental mercury from oxygennitrogen mixtures resembling air. The possibility of removing mercury from ambient air with a self-cleaning glass apparatus is examined. The intensity of 365-nm ultraviolet light was similar to the natural intensity from sunlight in the Pittsburgh region. Passive removal of mercury from the air may represent an option in lieu of, or in addition to, point source clean-up at combustion facilities. There are several common band-gap semiconductor oxide photocatalysts. Sunlight (both the ultraviolet and visible light components) and band-gap semiconductor particles may have a small impact on the global cycle of mercury in the environment. The potential environmental consequences of mercury interactions with band-gap semiconductor oxides are discussed. Heterogeneous photooxidation might impact the global transport of elemental mercury emanating from flue gases.

Granite, E.J.; King, W.P.; Stanko, D.C.; Pennline, H.W.

2008-09-01T23:59:59.000Z

265

Investigations into Cost Reductions of X-band Instrumentation  

SciTech Connect

The prohibitive costs of commercial test equipment for making fast and accurate pulsed phase and amplitude measurements at X-Band result in decreased productivity due to shortages of shared equipment across the test laboratory. In addition, most current set-ups rely on the use of pulsed power heads which do not allow for the measurement of phase thereby limiting the flexibility of available measurements. In this paper, we investigate less expensive in-house designed instrumentation based upon commercial satellite down converters and widely available logarithmic detector amplifiers and phase detectors. The techniques are used to measure X-Band pulses with widths of 50 ns to 10's of usec. We expect a dynamic range of 30-40 dB with accuracies of better than +/- 0.1 dB and +/- 1 degree of phase. We show preliminary results of the built and tested modules. Block diagrams of the down conversion scheme, and the architecture of a multi-signal X-band RF monitor and measurement system is illustrated. Measured results, and possible modifications and upgrades are presented.

Van Winkle, D.; Dolgashev, V.A.; Fox, J.D.; Tantawi, S.G.; /SLAC

2009-05-15T23:59:59.000Z

266

Characterization of adiabatic shear bands in AM60B magnesium alloy under ballistic impact  

SciTech Connect

Adiabatic shear bands in Mg alloy under ballistic impact at a velocity of 0.5 km.s{sup -1} were characterized by means of optical microscope, scanning electron microscope, transmission electron microscope and indenter technique. The results show that adiabatic shear bands were formed around the impacted crater, and the deformed and transformed bands were distinguished by etching colors in metallographic observation. TEM observation shows that the deformed bands were composed of the elongated grains and high density dislocations, while the transformed bands composed of the ultrafine and equiaxed grains were confirmed. In initial stage, the severe localized plastic deformation led to the formation of elongated grains in the deformed bands. With localized strain increasing, the severe localized deformation assisted with the plastic temperature rising led to the severe deformation grains evolved into the ultrafine and equiaxed grains, while the deformed bands were developed into transformed bands. The formation of the ultrafine and equiaxed grains in the transformed bands should be attributed to the twinning-induced rotational dynamic recrystallization mechanism. High microhardness in the bands was obtained because of the strain hardening, grain refining and content concentration. - Research Highlights: {yields} Deformed and transformed bands are found in Mg alloy under ballistic impact. {yields} The microstructures in the deformed and transformed bands are characterized. {yields} The evolution process of the microstructure in the bands is discussed.

Zou, D.L.; Zhen, L., E-mail: lzhen@hit.edu.cn; Xu, C.Y.; Shao, W.Z.

2011-05-15T23:59:59.000Z

267

Case-control study of cancer among Du Pont employees with potential for exposure to dimethylformamide  

Science Conference Proceedings (OSTI)

This case-control study was undertaken to determine whether the risk of developing cancers of the buccal cavity and pharynx (N = 39), liver (N = 6), prostate (N = 43), testis (N = 11), or malignant melanoma of the skin (N = 39) is related to exposure to dimethylformamide (DMF). Case and control subjects were obtained from four Du Pont plants. DMF is produced at one plant and used at the other three. Cancer cases identified from the company Cancer Registry comprise those reported among active male employees at the study plants during 1956 to 1985. For each case, two control subjects were selected, matched on sex, payroll class (wage or salary), birth year, and plant. To determine whether an employee could have been exposed to DMF during his career at the plant, all jobs with potential for exposure to DMF were identified. Each job was assigned an exposure ranking based on DMF industrial hygiene air monitoring, DMF metabolite (measured as N-methylformamide in urine) monitoring, and knowledge of the evolution of manufacturing processes and workplace exposure controls. Each employee's DMF exposure pattern was then characterized as (a) ever v never having been exposed to DMF and (b) highest DMF exposure experienced. Summary analyses for all plants combined showed no statistically significant association between ever having been exposed to DMF and subsequent development of cancers of the buccal cavity and pharynx, liver, malignant melanoma, prostate, and testis. Examined by plant site, prostate cancer at one plant was significantly elevated, based on three case subjects exposed out of four.

Walrath, J.; Fayerweather, W.E.; Gilby, P.G.; Pell, S.

1989-05-01T23:59:59.000Z

268

Management of wildlife causing damage at Argonne National Laboratory-East, DuPage County, Illinois  

SciTech Connect

The DOE, after an independent review, has adopted an Environmental Assessment (EA) prepared by the US Department of Agriculture (USDA) which evaluates use of an Integrated Wildlife Damage Management approach at Argonne National Laboratory-East (ANL-E) in DuPage County, Illinois (April 1995). In 1994, the USDA issued a programmatic Environmental Impact Statement (EIS) that covers nationwide animal damage control activities. The EA for Management of Wildlife Causing Damage at ANL-E tiers off this programmatic EIS. The USDA wrote the EA as a result of DOE`s request to USDA to prepare and implement a comprehensive Wildlife Management Damage Plan; the USDA has authority for animal damage control under the Animal Damage Control Act of 1931, as amended, and the Rural Development, Agriculture and Related Agencies Appropriations Act of 1988. DOE has determined, based on the analysis in the EA, that the proposed action does not constitute a major Federal action significantly affecting the quality of the human environment within the meaning of the National Environmental Policy Act of 1969 (NEPA). Therefore, the preparation of an EIS is not required. This report contains the Environmental Assessment, as well as the Finding of No Significant Impact (FONSI).

1995-04-01T23:59:59.000Z

269

A Forecast Strategy for Anticipating Cold Season Mesoscale Band Formation within Eastern U.S. Cyclones  

Science Conference Proceedings (OSTI)

An ingredients-based, time- and scale-dependent forecast strategy for anticipating cold season mesoscale band formation within eastern U.S. cyclones is presented. This strategy draws on emerging conceptual models of mesoscale band development, ...

David R. Novak; Jeff S. Waldstreicher; Daniel Keyser; Lance F. Bosart

2006-02-01T23:59:59.000Z

270

Dynamics of Orographically Triggered Banded Convection in Sheared Moist Orographic Flows  

Science Conference Proceedings (OSTI)

Shallow orographic convection embedded in an unstable cap cloud can organize into convective bands. Previous research has highlighted the important role of small-amplitude topographic variations in triggering and organizing banded convection. ...

Oliver Fuhrer; Christoph Schr

2007-10-01T23:59:59.000Z

271

Impact of the Aqua MODIS band 6 Restoration on Cloud/Snow Discrimination  

Science Conference Proceedings (OSTI)

Distinguishing between clouds and snow is an intrinsically challenging problem because both have similar high albedo across many bands. The 1.6?m channel (band 6) on the MODIS instrument provides an essential tool for distinguishing clouds from ...

Irina Gladkova; Fazlul Shahriar; Michael Grossberg; Richard A. Frey; W. Paul Menzel

272

Single-junction solar cells with the optimum band gap for terrestrial concentrator applications  

DOE Patents (OSTI)

A single-junction solar cell having the ideal band gap for terrestrial concentrator applications. Computer modeling studies of single-junction solar cells have shown that the presence of absorption bands in the direct spectrum has the effect of "pinning" the optimum band gap for a wide range of operating conditions at a value of 1.14.+-.0.02 eV. Efficiencies exceeding 30% may be possible at high concentration ratios for devices with the ideal band gap.

Wanlass, Mark W. (Golden, CO)

1994-01-01T23:59:59.000Z

273

Grand Traverse Band Renewable Energy Feasibility Study in Wind, Biomass and Solar  

DOE Green Energy (OSTI)

Renewable Energy Feasibility Study for wind, biomass, solar on the Grand Traverse Band tribal lands from 2005 - 2008

Suzanne McSawby, Project Director

2008-12-31T23:59:59.000Z

274

Quantitative mobility spectrum analysis (QMSA) for hall characterization of electrons and holes in anisotropic bands  

Science Conference Proceedings (OSTI)

Keywords: Bi films, Bi/CdTe superlattices, Si, anisotropic bands, magnetotransport, quantitative mobility spectrum analysis (QMSA), thermoelectric properties

I. Vurgaftman; J. R. Meyer; C. A. Hoffman; S. Cho; J. B. Ketterson; L. Faraone; J. Antoszewski; J. R. Lindemuth

1999-05-01T23:59:59.000Z

275

Band anticrossing effects in highly mismatched semiconductor alloys  

DOE Green Energy (OSTI)

The first five chapters of this thesis focus on studies of band anticrossing (BAC) effects in highly electronegativity- mismatched semiconductor alloys. The concept of bandgap bowing has been used to describe the deviation of the alloy bandgap from a linear interpolation. Bowing parameters as large as 2.5 eV (for ZnSTe) and close to zero (for AlGaAs and ZnSSe) have been observed experimentally. Recent advances in thin film deposition techniques have allowed the growth of semiconductor alloys composed of significantly different constituents with ever- improving crystalline quality (e.g., GaAs{sub 1-x}N{sub x} and GaP{sub 1-x}N{sub x} with x {approx}< 0.05). These alloys exhibit many novel and interesting properties including, in particular, a giant bandgap bowing (bowing parameters > 14 eV). A band anticrossing model has been developed to explain these properties. The model shows that the predominant bowing mechanism in these systems is driven by the anticrossing interaction between the localized level associated with the minority component and the band states of the host. In this thesis I discuss my studies of the BAC effects in these highly mismatched semiconductors. It will be shown that the results of the physically intuitive BAC model can be derived from the Hamiltonian of the many-impurity Anderson model. The band restructuring caused by the BAC interaction is responsible for a series of experimental observations such as a large bandgap reduction, an enhancement of the electron effective mass, and a decrease in the pressure coefficient of the fundamental gap energy. Results of further experimental investigations of the optical properties of quantum wells based on these materials will be also presented. It will be shown that the BAC interaction occurs not only between localized states and conduction band states at the Brillouin zone center, but also exists over all of k-space. Finally, taking ZnSTe and ZnSeTe as examples, I show that BAC also occurs between localized states and the valence band states. Soft x-ray fluorescence experiments provide direct evidence of the BAC interaction in these systems. In the final chapter of the thesis, I describe and summarize my studies of optical properties of wurtzite InN and related alloys. Early studies performed on InN films grown by sputtering techniques suggested a direct bandgap of {approx}1.9 eV for this semiconductor. Very recently, high-quality InN films with much higher mobility have become available by using the molecular beam epitaxy growth method. Optical experiments carried out on these samples reveal a narrow bandgap for InN of 0.77 eV, much lower than the previously accepted value. Optical properties of InGaN and InAlN ternaries on the In rich side have also been characterized and are found to be consistent with the narrow bandgap of InN. The bandgap bowing parameters in these alloys were determined. In the context of these findings, the bandgap energies of InGaN and InAlN were found to cover a wide spectral range from the infrared for InN to the ultraviolet for GaN and deep ultraviolet for AlN. The significance of this work is rooted in many important applications of nitride semiconductors in optoelectronics and solar energy conversion devices.

Wu, Junqiao

2002-09-09T23:59:59.000Z

276

Ka-Band ARM Zenith Radar (KAZR) Instrument Handbook  

SciTech Connect

The Ka-band ARM zenith radar (KAZR) is a zenith-pointing Doppler cloud radar operating at approximately 35 GHz. The KAZR is an evolutionary follow-on radar to ARM's widely successful millimeter-wavelength cloud radar (MMCR). The main purpose of the KAZR is to provide vertical profiles of clouds by measuring the first three Doppler moments: reflectivity, radial Doppler velocity, and spectra width. At the sites where the dual-polarization measurements are made, the Doppler moments for the cross-polarization channel are also available. In addition to the moments, velocity spectra are also continuously recorded for each range gate.

Widener, K; Bharadwaj, N; Johnson, K

2012-03-06T23:59:59.000Z

277

Determining the Energy Barrier for Decay out of Superdeformed Bands  

E-Print Network (OSTI)

An asymptotically exact quantum mechanical calculation of the matrix elements for tunneling through an asymmetric barrier is combined with the two-state statistical model for decay out of superdeformed bands to determine the energy barrier (as a function of spin) separating the superdeformed and normal-deformed wells for several nuclei in the 190 and 150 mass regions. The spin-dependence of the barrier leading to sudden decay out is shown to be consistent with the decrease of a centrifugal barrier with decreasing angular momentum. Values of the barrier frequency in the two mass regions are predicted.

B. R. Barrett; J. Brki; D. M. Cardamone; C. A. Stafford; D. L. Stein

2008-09-06T23:59:59.000Z

278

Narrow-band optical transmission of metallic nanoslit arrays  

Science Conference Proceedings (OSTI)

Metallic nanoslit arrays usually demonstrate wide transmission bands for transverse-magnetic-polarized incidence light. Here, we show that by introducing multi-dielectric layers underneath the metallic structure layer on the substrate, a narrow peak is formed, whose bandwidth can be down to a few nanometers. Three types of resonance modes in the region under the metal layer are identified responsible for the formation of the peak, i.e., a two-dimensional cavity resonance mode, which supports optical transmission, and two in-plane hybrid surface plasmon resonance modes locating on both sides of the peak that suppresses the transmission. Such structures can be applied in advanced photonic devices.

Sun Zhijun; Yang Ying; Zuo Xiaoliu [Department of Physics, Xiamen University, Xiamen 361005 (China)

2012-10-22T23:59:59.000Z

279

VIMOS total transmission profiles for broad-band filters  

E-Print Network (OSTI)

VIMOS is a wide-field imager and spectrograph mounted on UT3 at the VLT, whose FOV consists of four 7'x8' quadrants. Here we present the measurements of total transmission profiles -- i.e. the throughput of telescope + instrument -- for the broad band filters U, B, V, R, I, and z for each of its four quadrants. Those measurements can also be downloaded from the public VIMOS web-page. The transmission profiles are compared with previous estimates from the VIMOS consortium.

S. Mieske; M. Rejkuba; S. Bagnulo; C. Izzo; G. Marconi

2007-04-13T23:59:59.000Z

280

Band Structure Asymmetry of Bilayer Graphene Revealed by Infrared Spectroscopy  

Science Conference Proceedings (OSTI)

We report on infrared spectroscopy of bilayer graphene integrated in gated structures. We observe a significant asymmetry in the optical conductivity upon electrostatic doping of electrons and holes. We show that this finding arises from a marked asymmetry between the valence and conduction bands, which is mainly due to the inequivalence of the two sublattices within the graphene layer and the next-nearest-neighbor interlayer coupling. From the conductivity data, the energy difference of the two sublattices and the interlayer coupling energy are directly determined.

Li, Z.Q.; Henriksen, E.A.; Jiang, Z.; Hao, Zhao; Martin, Michael C.; Kim, P.; Stormer, H.L.; Basov, Dimitri N.

2008-12-10T23:59:59.000Z

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


281

Multi-spectral band selection for satellite-based systems  

Science Conference Proceedings (OSTI)

The design of satellite based multispectral imaging systems requires the consideration of a number of tradeoffs between cost and performance. The authors have recently been involved in the design and evaluation of a satellite based multispectral sensor operating from the visible through the long wavelength IR. The criteria that led to some of the proposed designs and the modeling used to evaluate and fine tune the designs will both be discussed. These criteria emphasized the use of bands for surface temperature retrieval and the correction of atmospheric effects. The impact of cost estimate changes on the final design will also be discussed.

Clodius, W.B.; Weber, P.G.; Borel, C.C.; Smith, B.W.

1998-09-01T23:59:59.000Z

282

Open-loop Band excitation Kelvin Probe Force Microscopy  

Science Conference Proceedings (OSTI)

A multidimensional scanning probe microscopy approach for quantitative, cross-talk free mapping of surface electrostatic properties is demonstrated. Open-loop band excitation Kelvin probe force microscopy (OL BE KPFM) probes the full response-frequency-potential surface at each pixel at standard imaging rates. The subsequent analysis reconstructs work function, tip surface capacitance gradient and resonant frequency maps, obviating feedback-related artifacts. OL BE KPFM imaging is demonstrated for several materials systems with topographic, potential and combined contrast. This approach combines the features of both frequency and amplitude KPFM and allows complete decoupling of topographic and voltage contributions to the KPFM signal.

Guo, Senli [ORNL; Kalinin, Sergei V [ORNL; Jesse, Stephen [ORNL

2012-01-01T23:59:59.000Z

283

REPLY TO AllNOF: EM-421 SUBJECT: The File TO: Elimination of the DuBois Chemical Company Site from FUSRAP  

Office of Legacy Management (LM)

q.w -' q.w -' -fihsw+P 8063 6H-j DOEF 1325.8 . 8 @w - bnited States Government - Department of Energy memorandum DATE: DEC 14 1990 REPLY TO AllNOF: EM-421 SUBJECT: The File TO: Elimination of the DuBois Chemical Company Site from FUSRAP I have reviewed the attached preliminary site summary and recommendation for the DuBois Chemical Company site in Cincinnati. I have determined that there is little likelihood of contamination at this site. Based on the above, the DuBois Chemical Company Site is hereby eliminated from further consideration under the Formerly Utilized Sites Remedial Action Program. W. Alexander Williams, PhD Designation and Certification Manager Off-Site Branch Division of Eastern Area Programs Office of Environmental Restoration Attachment

284

A Comparison of Two Banded, Heavy Snowstorms with Very Different Synoptic Settings  

Science Conference Proceedings (OSTI)

Two banded, heavy snowstorms that occurred over the northern mid-Atlantic region are compared and contrasted. On 67 January 2002, a narrow, intense band of heavy snow was observed, along with several other weaker bands, embedded within a large ...

Michael L. Jurewicz Sr.; Michael S. Evans

2004-12-01T23:59:59.000Z

285

Banded Convection Caused by Frontogenesis in a Conditionally, Symmetrically, and Inertially Unstable Environment  

Science Conference Proceedings (OSTI)

Several eastwest-oriented bands of clouds and light rain formed on 20 July 2005 over eastern Montana and the Dakotas. The cloud bands were spaced about 150 km apart, and the most intense band was about 20 km wide and 300 km long, featuring areas ...

David M. Schultz; John A. Knox

2007-06-01T23:59:59.000Z

286

Structure and evolution of a convective band MCS  

E-Print Network (OSTI)

The structure and evolution of the synoptic, mesoscale, and lightning characteristics of the 5 May 1993 non-squall line Mesoscale Convective System has been described. This storm was a long-lived Mesoscale Convective Complex. Its formation was influenced by strong low-level warm advection, weak vorticity advection, and weak vertical. wind shear. Its dissipation occurred as the storm encountered a more stable air mass which may have been influenced by storm induced subsidence. The cyclonic mesoscale circulation of the Mesoscale Convective Complex apparently aided in the formation of new lines of convection behind the primary convective line of the system. This process was repeated twice in the storm life cycle and led to multiple bands of convection. Indeed, this storm had three main lines: the leading line, the trailing one, and the small line near the center of the vortex. As the new lines formed, the vertical transport of momentum disrupted the symmetry of the mesovortex. However, as the line propagated eastward away from the vortex, the symmetric cyclonic circulation re-established itself. This Mesoscale Convective Complex produced flash rates in excess of 1000 h-I for twenty-four consecutive hours. The percentage of positive polarity flashes was higher during the formative and dissipating stages of the storm system. Positive flashes were also enhanced during mergers between convective bands. The flash locations during the mature stage of this storm suggest a bipolar pattern.

Valdes-Manzanilla, Arturo

1995-01-01T23:59:59.000Z

287

BsTan gnyis gling pa (1480-1535) et la Revelation du Yang tig ye shes mthong grol  

E-Print Network (OSTI)

enseignements et de ri-chesses se trouve Gos sngon ! Si tu (veux) te rendre l-bas, je te guiderai !Cest une injonction de Guru Padma ! 10 4 Le personnage dont il est question dans cette stance est O rgyan m... certainement lui prfrer laleon du bKa thang gser phreng de Sangs rgyas gling pa qui propose la lecture (p.630) stag thab. On verra plus bas comment interprter isolment stag (pour stagshar) et thab (pour thab).6 O rgyan gling pa, op. cit., p. 571 : de...

Achard, Jean-Luc

2004-01-01T23:59:59.000Z

288

Toroidal band limiter for a plasma containment device  

DOE Patents (OSTI)

This invention relates to a toroidal plasma confinement device having poloidal and toroidal magnetic fields for confining a toroidal plasma column with a plasma current induced therein along an endless, circular equilibrium axis in a torus vacuum cavity wherein the improvement comprises the use of a toroidal plasma band limiter mounted within the vacuum cavity in such a manner as to ensure that the plasma energy is distributed more uniformly over the limiter surface thereby avoiding intense local heating of the limiter while at the same time substantially preventing damage to the plasma containment wall of the cavity by the energetic particles diffusing out from the confined plasma. A plurality of poloidal plasma ring limiters are also utilized for containment wall protection during any disruptive instability that might occur during operation of the device.

Kelley, George G. (Kingston, TN)

1978-01-01T23:59:59.000Z

289

Ultra Wide Band RFID Neutron Tags for Nuclear Materials Monitoring  

SciTech Connect

Recent advancements in the ultra-wide band Radio Frequency Identification (RFID) technology and solid state pillar type neutron detectors have enabled us to move forward in combining both technologies for advanced neutron monitoring. The LLNL RFID tag is totally passive and will operate indefinitely without the need for batteries. The tag is compact, can be directly mounted on metal, and has high performance in dense and cluttered environments. The LLNL coin-sized pillar solid state neutron detector has achieved a thermal neutron detection efficiency of 20% and neutron/gamma discrimination of 1E5. These performance values are comparable to a fieldable {sup 3}He based detector. In this paper we will discuss features about the two technologies and some potential applications for the advanced safeguarding of nuclear materials.

Nekoogar, F; Dowla, F; Wang, T

2010-01-27T23:59:59.000Z

290

Passive Fully Polarimetric W-Band Millimeter-Wave Imaging  

Science Conference Proceedings (OSTI)

We present the theory, design, and experimental results obtained from a scanning passive W-band fully polarimetric imager. Passive millimeter-wave imaging offers persistent day/nighttime imaging and the ability to penetrate dust, clouds and other obscurants, including clothing and dry soil. The single-pixel scanning imager includes both far-field and near-field fore-optics for investigation of polarization phenomena. Using both fore-optics, a variety of scenes including natural and man-made objects was imaged and these results are presented showing the utility of polarimetric imaging for anomaly detection. Analysis includes conventional Stokes-parameter based approaches as well as multivariate image analysis methods.

Bernacki, Bruce E.; Kelly, James F.; Sheen, David M.; McMakin, Douglas L.; Tedeschi, Jonathan R.; Harris, Robert V.; Mendoza, Albert; Hall, Thomas E.; Hatchell, Brian K.; Valdez, Patrick LJ

2012-04-01T23:59:59.000Z

291

Substrate-induced band gap opening in epitaxial graphene  

Science Conference Proceedings (OSTI)

Graphene has shown great application potential as the hostmaterial for next-generation electronic devices. However, despite itsintriguing properties, one of the biggest hurdles for graphene to beuseful as an electronic material is the lack of an energy gap in itselectronic spectra. This, for example, prevents the use of graphene inmaking transistors. Although several proposals have been made to open agap in graphene's electronic spectra, they all require complexengineering of the graphene layer. Here, we show that when graphene isepitaxially grown on SiC substrate, a gap of ~;0.26 eV is produced. Thisgap decreases as the sample thickness increases and eventually approacheszero when the number of layers exceeds four. We propose that the originof this gap is the breaking of sublattice symmetry owing to thegraphene-substrate interaction. We believe that our results highlight apromising direction for band gap engineering of graphene.

Zhou, S.Y.; Gweon, G.-H.; Fedorov, A.V.; First, P.N.; de Heer,W.A.; Lee, D.-H.; Guinea, F.; Castro Neto, A.H.; Lanzara, A.

2007-09-08T23:59:59.000Z

292

Voltage-Matched, Monolithic, Multi-Band-Gap Devices  

DOE Patents (OSTI)

Monolithic, tandem, photonic cells include at least a first semiconductor layer and a second semiconductor layer, wherein each semiconductor layer includes an n-type region, a p-type region, and a given band-gap energy. Formed within each semiconductor layer is a string of electrically connected photonic sub-cells. By carefully selecting the numbers of photonic sub-cells in the first and second layer photonic sub-cell string(s), and by carefully selecting the manner in which the sub-cells in a first and second layer photonic sub-cell string(s) are electrically connected, each of the first and second layer sub-cell strings may be made to achieve one or more substantially identical electrical characteristics.

Wanlass, M. W.; Mascarenhas, A.

2006-08-22T23:59:59.000Z

293

Initial assessment of an airborne Ku-band polarimetric SAR.  

SciTech Connect

Polarimetric synthetic aperture radar (SAR) has been used for a variety of dual-use research applications since the 1940's. By measuring the direction of the electric field vector from radar echoes, polarimetry may enhance an analyst's understanding of scattering effects for both earth monitoring and tactical surveillance missions. Polarimetry may provide insight into surface types, materials, or orientations for natural and man-made targets. Polarimetric measurements may also be used to enhance the contrast between scattering surfaces such as man-made objects and their surroundings. This report represents an initial assessment of the utility of, and applications for, polarimetric SAR at Ku-band for airborne or unmanned aerial systems.

Raynal, Ann Marie; Doerry, Armin Walter

2013-02-01T23:59:59.000Z

294

Study and Analysis 100-car Naturalistic Driving Data Amanda Justiniano (Dr. Eliza Y. Du), Department of Electrical and Computer Engineering, Purdue  

E-Print Network (OSTI)

Study and Analysis 100-car Naturalistic Driving Data Amanda Justiniano (Dr. Eliza Y. Du), Department of Electrical and Computer Engineering, Purdue School of Engineering, Indianapolis, IN 46202 Every uses facilities such as car simulators, Drive Safety DS-600c, directed towards the research

Zhou, Yaoqi

295

Interaction-induced excited-band condensate in a double-well optical lattice  

Science Conference Proceedings (OSTI)

We show theoretically that interaction effects in a double-well optical lattice can induce condensates in an excited band. For a symmetric double-well lattice, bosons condense into the bottom of the excited band at the edge of the Brillouin zone if the chemical potential is above a critical value. For an asymmetric lattice, a condensate with zero momentum is automatically induced in the excited band by the condensate in the lowest band. This is due to a combined effect of interaction and lattice potential, which reduces the band gap and breaks the inversion symmetry. Our work can be generalized to a superlattice composed of multiple-well potentials at each lattice site, where condensates can be induced in even higher bands.

Zhou Qi; Das Sarma, S. [Joint Quantum Institute, Department of Physics, University of Maryland, College Park, Maryland 20742 (United States); Condensed Matter Theory Center, Department of Physics, University of Maryland, College Park, Maryland 20742 (United States); Porto, J. V. [Joint Quantum Institute, Department of Physics, University of Maryland, College Park, Maryland 20742 (United States)

2011-09-15T23:59:59.000Z

296

A Velocity Dealiasing Scheme for Synthetic C-Band Data from Chinas New Generation Weather Radar System (CINRAD)  

Science Conference Proceedings (OSTI)

A velocity dealiasing algorithm is developed for C-band (5-cm wavelength) Doppler radars. With the shorter wavelength, C-band radars operating in a single PRF mode have a Nyquist interval about one-half that of S-band radars. As a proxy for C-band ...

Guangxin He; Gang Li; Xiaolei Zou; Peter Sawin Ray

2012-09-01T23:59:59.000Z

297

Temperature dependent band offsets in PbSe/PbEuSe quantum well heterostructures  

Science Conference Proceedings (OSTI)

The band offsets of PbSe/Pb{sub 1-x}Eu{sub x}Se multi-quantum wells grown by molecular beam epitaxy are determined as a function of temperature and europium content using temperature-modulated differential transmission spectroscopy. The confined quantum well states in the valence and conduction bands are analyzed using a k{center_dot}p model with envelope function approximation. From the fit of the experimental data, the normalized conduction band offset is determined as 0.45{+-}0.15 of the band gap difference, independently of Eu content up to 14% and temperature from 20 to 300 K.

Simma, M.; Bauer, G.; Springholz, G. [Institut fuer Halbleiter und Festkoerperphysik, Johannes Kepler Universitaet, A-4040 Linz (Austria)

2012-10-22T23:59:59.000Z

298

Preliminary experimental investigation of a dual-band relativistic backward wave oscillator with dual beams  

Science Conference Proceedings (OSTI)

A dual-band relativistic backward wave oscillator with dual electron beams generating C-band and X-band microwaves is investigated experimentally. The frequencies, powers, and radiation patterns of the dual-band microwaves are measured. With the diode voltage of 657 kV and the total beam current of 14 kA guided by a magnetic field of about 1.7 T, the dual-band microwaves are generated with dominant frequencies of 4.58 and 8.30 GHz close to the results from the particle-in-cell simulation. The powers of the C-band and X-band microwaves are 520 and 113 MW, respectively. The effects of variations in the guiding magnetic field and diode voltage on the powers of the dual-band microwaves are presented and discussed. The radiation patterns of the dual-band microwaves from the radiating antenna are tested both corresponding to a TM{sub 01} mode and the independency of the operation processes of them is discussed.

Wang Ting; Qian Baoliang; Zhang Jiande; Zhang Xiaoping; Cao Yibing; Zhang Qiang [College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha 410073 (China)

2011-01-15T23:59:59.000Z

299

Single-junction solar cells with the optimum band gap for terrestrial concentrator applications  

DOE Patents (OSTI)

A single-junction solar cell is described having the ideal band gap for terrestrial concentrator applications. Computer modeling studies of single-junction solar cells have shown that the presence of absorption bands in the direct spectrum has the effect of ''pinning'' the optimum band gap for a wide range of operating conditions at a value of 1.14[+-]0.02 eV. Efficiencies exceeding 30% may be possible at high concentration ratios for devices with the ideal band gap. 7 figures.

Wanlass, M.W.

1994-12-27T23:59:59.000Z

300

Mechanochemical Behavior of BaNd 2 Ti 4 O 12 Powder in Ball ...  

Science Conference Proceedings (OSTI)

When ball milling BaNd2Ti4O12, a high slurry viscosity reduces the capability of the grinding media to shear, and...

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301

Single-junction solar cells with the optimum band gap for ...  

A single-junction solar cell having the ideal band gap for terrestrial concentrator applications. Computer modeling studies of single-junction solar cells have shown ...

302

The B band luminosities of QSO host galaxies  

E-Print Network (OSTI)

We report on the analysis of B band imaging data of 57 low-redshift QSOs and Seyfert 1 galaxies selected from the Hamburg/ESO-Survey, for which host galaxy dependent selection biases are greatly reduced compared to other optical surveys. Only one object in the sample is known to be radio-loud. We adopted a procedure to remove the AGN contribution by subtracting a scaled point spread functions from each QSO image. To reclaim the integrated host galaxy flux we correct for oversubtraction based on simulations. This method shows to be quite insensitive to the host galaxy morphological type, which we can unambiguously established for 15 of the 57 objects. The quasar host galaxies are detected in all cases. The hosts are very luminous, ranging in absolute magnitude M_B from -19.0 to -23.8, with an average of M_B,gal = -21.5, considerably above L* for field galaxies. For the luminous QSO subsample with M_B < -23 the average host absolute magnitude is M_B,gal = -23.0, while for the complementary low-luminosity AGN...

Jahnke, K

2003-01-01T23:59:59.000Z

303

Fabrication of x-band accelerating structures at Fermilab  

DOE Green Energy (OSTI)

The RF Technology Development group at Fermilab is working together with the NLC and GLC groups at SLAC and KEK on developing technology for room temperature X-band accelerating structures for a future linear collider. We built six 60-cm long, high phase advance, detuned structures (HDS or FXB series). These structures have 150 degrees phase advance per cell, and are intended for high gradient tests. The structures were brazed in a vacuum furnace with a partial pressure of argon, rather than in a hydrogen atmosphere. We have also begun to build 60-cm long, damped and detuned structures (HDDS or FXC/FXD series). We have built 5 FXC and 1 FXD structures. Our goal was to build six structures for the 8-pack test at SLAC by the end of March 2004, as part of the GLC/NLC effort to demonstrate the readiness of room temperature RF technology for a linear collider. This paper describes the RF structure factory infrastructure (clean rooms, vacuum furnaces, vacuum equipment, RF equipment etc.), and the fabrication techniques utilized (the machining of copper cells/couplers, quality control, etching, vacuum brazing, cleanliness requirements etc.) for the production of FXB and FXC/FXD structures.

Tug T Arkan et al.

2004-07-20T23:59:59.000Z

304

Development of an X-band Photoinjector at SLAC  

E-Print Network (OSTI)

As part of a National Cancer Institute contract to develop a compact source of monoenergetic X-rays via Compton backscattering, we have completed the design and construction of a 5.5 cell Photoinjector operating at 11.424 GHz. Successful completion of this project will result in the capability of generating a monoenergetic X-ray beam, continuously tunable from 20 - 85 KeV. The immediate goal is the development of a Photoinjector producing 7 MeV, 0.5 nC, sub-picosecond electron bunches with normalized RMS emittances of approximately 1 pi-mm-mR at repetition rates up to 60 Hz. This beam will then be further accelerated to 60 MeV using a 1.05 m accelerating structure. This Photoinjector is somewhat different than the traditional 1.5 cell design both because of the number of cells and the symmetrically fed input coupler cell. Its operating frequency is also unique. Since the cathode is non-removable, cold-test tuning was somewhat more difficult than in other designs. We will present results of "bead-drop" measurements used in tuning this structure. Initial beam measurements are currently in progress and results will be presented as well as results of RF conditioning to high gradients at X-band. Details of the RF system, emittance-compensating solenoid, and cathode laser system as well as PARMELA simulations will also be presented.

A. E. Vlieks; G. Caryotakis; R. Loewen; D. Martin; A. Menegat; E. Landahl; C. DeStefano; B. Pelletier; N. C. Luhmamm Jr.

2002-08-13T23:59:59.000Z

305

Precision Magnet Measurements for X-Band Accelerator Quadrupole Triplets  

SciTech Connect

An X-band test station is being developed at LLNL to investigate accelerator optimization for future upgrades to mono-energetic gamma-ray (MEGa-Ray) technology at LLNL. Beamline magnets will include an emittance compensation solenoid, windowpane steering dipoles, and quadrupole magnets. Demanding tolerances have been placed on the alignment of these magnets, which directly affects the electron bunch beam quality. A magnet mapping system has been established at LLNL in order to ensure the delivered magnets match their field specification, and the mountings are aligned and capable of reaching the specified alignment tolerances. The magnet measurement system will be described which uses a 3-axis Lakeshore gauss probe mounted on a 3-axis translation stage. Alignment accuracy and precision will be discussed, as well as centering measurements and analysis. The dependence on data analysis over direct multi-pole measurement allows a significant improvement in useful alignment information. Detailed analysis of measurements on the beamline quadrupoles will be discussed, including multi-pole content both from alignment of the magnets, and the intrinsic level of multi-pole magnetic field.

Marsh, R A; Anderson, S G; Armstrong, J P

2012-05-16T23:59:59.000Z

306

Mineral ecophysiological evidence for microbial activity in banded iron formation  

Science Conference Proceedings (OSTI)

The phosphorus composition of banded-iron formations (BIFs) has been used as a proxy for Precambrian seawater composition and the paleoeredox state of Earth's surface environment. However, it is unclear whether the phosphorus in BIFs originally entered the sediment as a sorbed component of the iron oxyhydroxide particles, or whether it was incorporated into the biomass of marine phytoplankton. We conducted high-resolution mineral analyses and report here the first detection of an Fe(III) acetate salt, as well as nanocrystals of apatite in association with magnetite, in the 2.48 Ga Dales Gorge Member of the Brockman Iron Formation (a BIF), Hamersley, Western Australia. The clusters of apatite are similar in size and morphology to biogenic apatite crystals resulting from biomass decay in Phanerozoic marine sediments, while the formation of an Fe(III) acetate salt and magnetite not only implies the original presence of biomass in the BIF sediments, but also that organic carbon likely served as an electron donor during bacterial Fe(III) reduction. This study is important because it suggests that phytoplankton may have played a key role in the transfer of phosphorus (and other trace elements) from the photic zone to the seafloor.

Li, Dr. Yi-Liang [University of Tennessee, Knoxville (UTK); Konhauser, Dr, Kurt [University of Alberta; Cole, David R [ORNL; Phelps, Tommy Joe [ORNL

2011-01-01T23:59:59.000Z

307

Tuning Band Gap Energies in Pb3(C6X6) Extended Solid-State Structures  

SciTech Connect

A detailed plane-wave density functional theory investigation of the solid-state properties of the extended organometallic system Pb{sub 3}C{sub 6}X{sub 6} for X = O, S, Se, and Te has been performed. Initial geometry parameters for the Pb-X and C-X bond distances were obtained from optimized calculations on molecular fragment models. The Pb{sub 3}C{sub 6}X{sub 6} extended solid molecular structures were constructed in the space group P6/mmm on the basis of the known structure for X = S. Ground-state geometries, band gap energies, densities of states, and charge densities were calculated with the PBE-generalized gradient exchange-correlation functional and the HSE06 hybrid exchange-correlation functional. The PBE band gap energies were found to be lower than the HSE06 values by >0.7 eV. The band energies at points of high symmetry along the first Brillouin zone in the crystal were larger than the overall band gap of the system. Pb{sub 3}C{sub 6}O{sub 6} was predicted to be a direct semiconductor ({Lambda} point) with a PBE band gap of 0.28 eV and an HSE06 band gap of 1.06 eV. Pb{sub 3}C{sub 6}S{sub 6} and Pb{sub 3}C{sub 6}Se{sub 6} were predicted to have indirect band gaps. The PBE band gap for Pb{sub 3}C{sub 6}S{sub 6} was 0.98 eV, and the HSE06 band gap was 1.91 eV. The HSE06 value is in good agreement with the experimentally observed band gap of 1.7 eV. Pb{sub 3}C{sub 6}Se{sub 6} has a PBE band gap of 0.56 eV and a HSE06 band gap of 1.41 eV. Pb{sub 3}C{sub 6}Te{sub 6} was predicted to be metallic with both of the PBE and HSE06 functionals. A detailed analysis of the PBE band structure and partial density of states at two points before and after the metallic behavior reveals a change in orbital character indicative of band crossing in Pb{sub 3}C{sub 6}Te{sub 6}. These results show that the band gap energies can be fine-tuned by changing the substituent X atom.

Stott, Amanda C.; Vaid, Thomas P.; Bylaska, Eric J.; Dixon, David A.

2012-04-19T23:59:59.000Z

308

Multi-User Ultra-Wide Band Communication System Based on Modified Gegenbauer and Hermite Functions  

Science Conference Proceedings (OSTI)

In this paper a multi-user communication system based on ultra-wide band (UWB) technology is studied. UWB uses very short pulses, so that the spectrum of the emitted signals may spread over several GHz. In order to implement multi-user communication, ... Keywords: Gegenbauer polynomials, Hermite polynomials, ultra-wide band

F. Elbahhar; A. Rivenq-Menhaj; J. M. Rouvaen

2005-08-01T23:59:59.000Z

309

A self-calibration scheme for extended frequency-band-decomposition sigma-delta ADC  

Science Conference Proceedings (OSTI)

Frequency-band-decomposition (FBD) is a good candidate to be used to increase the bandwidths of ADC converters based on sigma-delta modulators for software and cognitive radio applications where we need to convert wide bandwidths. Each modulator processes ... Keywords: Analog-to-digital conversion, Bandpass, Filter bank, Frequency-band-decomposition, Self-calibration, Sigma-delta

Philippe Benabes; Ali Beydoun

2010-03-01T23:59:59.000Z

310

A measurement fixture suitable for measuring substrate noise in the UWB frequency band  

Science Conference Proceedings (OSTI)

This paper presents a measurement fixture suitable for measuring substrate carried noise for lightly doped substrates within the UWB frequency band. Signals coupling through the substrate are usually fairly weak and special precautions are taken to avoid ... Keywords: GSG, Substrate noise, UWB, Wide band measurements

Ming Shen; Tian Tong; Jan H. Mikkelsen; Torben Larsen

2009-01-01T23:59:59.000Z

311

High power breakdown testing of a photonic band-gap accelerator structure with elliptical rods  

E-Print Network (OSTI)

An improved single-cell photonic band-gap (PBG) structure with an inner row of elliptical rods (PBG-E) was tested with high power at a 60 Hz repetition rate at X-band (11.424 GHz), achieving a gradient of 128??MV/m at a ...

Munroe, Brian James

312

High performance RDMA-based MPI implementation over InfiniBand  

Science Conference Proceedings (OSTI)

Although InfiniBand Architecture is relatively new in the high performance computing area, it offers many features which help us to improve the performance of communication subsystems. One of these features is Remote Direct Memory Access (RDMA) operations. ... Keywords: InfiniBand, MPI, cluster computing, high performance computing

Jiuxing Liu; Jiesheng Wu; Sushmitha P. Kini; Pete Wyckoff; Dhabaleswar K. Panda

2003-06-01T23:59:59.000Z

313

Efficient On-Demand Connection Management Mechanisms with PGAS Models over InfiniBand  

Science Conference Proceedings (OSTI)

In the last decade or so, clusters have observed a tremendous rise in popularity due to the excellent price to performance ratio. A variety of Interconnects have been proposed during this period, with InfiniBand leading the way due to its high performance ... Keywords: InfiniBand, PGAS

Abhinav Vishnu; Manoj Krishnan

2010-05-01T23:59:59.000Z

314

Comparison of C-Band Scatterometer CMOD5.N Equivalent Neutral Winds with ECMWF  

Science Conference Proceedings (OSTI)

This article describes the evaluation of a C-band geophysical model function called C-band model 5.N (CMOD5.N). It is used to provide an empirical relation between backscatter as sensed by the spaceborne European Remote Sensing Satellite-2 (ERS-2)...

Hans Hersbach

2010-04-01T23:59:59.000Z

315

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

Science Conference Proceedings (OSTI)

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

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

2012-11-15T23:59:59.000Z

316

A New Gap-Opening Mechanism in a Triple-Band Metal  

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

A New Gap-Opening Mechanism in a A New Gap-Opening Mechanism in a Triple-Band Metal A New Gap-Opening Mechanism in a Triple-Band Metal Print Wednesday, 23 February 2005 00:00 A "wire" of indium only one or a few atoms wide grown on a silicon surface comprises an ideal test laboratory for studying one-dimensional (1D) metals. A new example comes from a collaboration between researchers from Yonsei University in Korea, the ALS, and the University of Oregon, who have discovered that the phase transition from metal to insulator that occurs at low temperature in indium wires on the silicon (111) surface involves not only the expected shift in the electronic structure (band-gap opening) but also a band restructuring that gives rise to an energy gap in a second band. Three's a Crowd

317

On the Relation between Perfect Tunneling and Band Gaps for SNG Metamaterial Structures  

E-Print Network (OSTI)

In this article we have proposed a compact classification of isotropic and homogenous single negative (SNG) electromagnetic metamaterial based perfect tunneling unit cells. This has been made by means of the band gap theories and properties of the arrays made up of these unit cells. Based on their reported characteristics, we have proposed new structures that simultaneously show perfect tunneling band and complete band gap (CBG - omni directional stop band for both polarizations). Besides, we have identified perfect tunneling which can be considered as "phase shifted perfect tunneling". Several interesting and new phenomena like Complete Perfect Tunneling (CPT - omni-directional perfect tunneling for both polarizations), Band Gap Shifting, CBG in Double Positive (DPS) material range, etc. have been reported with proper physical and mathematical explanations.

Mahdy, M R C; Shawon, Jubayer; Al-Quaderi, Golam Dastegir; Matin, M A

2013-01-01T23:59:59.000Z

318

Dilute Group III-V nitride intermediate band solar cells with contact blocking layers  

DOE Patents (OSTI)

An intermediate band solar cell (IBSC) is provided including a p-n junction based on dilute III-V nitride materials and a pair of contact blocking layers positioned on opposite surfaces of the p-n junction for electrically isolating the intermediate band of the p-n junction by blocking the charge transport in the intermediate band without affecting the electron and hole collection efficiency of the p-n junction, thereby increasing open circuit voltage (V.sub.OC) of the IBSC and increasing the photocurrent by utilizing the intermediate band to absorb photons with energy below the band gap of the absorber layers of the IBSC. Hence, the overall power conversion efficiency of a IBSC will be much higher than an conventional single junction solar cell. The p-n junction absorber layers of the IBSC may further have compositionally graded nitrogen concentrations to provide an electric field for more efficient charge collection.

Walukiewicz, Wladyslaw (Kensington, CA); Yu, Kin Man (Lafayette, CA)

2012-07-31T23:59:59.000Z

319

Defect-Band Emission Photoluminescence Imaging on Multi-Crystalline Si Solar Cells: Preprint  

DOE Green Energy (OSTI)

Defect-band photoluminescence (PL) imaging with an InGaAs camera was applied to multicrystalline silicon (mc-Si) wafers, which were taken from different heights of different Si bricks. Neighboring wafers were picked at six different processing steps, from as-cut to post-metallization. By using different cut-off filters, we were able to separate the band-to-band emission images from the defect-band emission images. On the defect-band emission images, the bright regions that originate from the grain boundaries and defect clusters were extracted from the PL images. The area fraction percentage of these regions at various processing stages shows a correlation with the final cell electrical parameters.

Yan, F.; Johnston, S.; Zaunbrecher, K.; Al-Jassim, M.; Sidelkheir, O.; Blosse, A.

2011-07-01T23:59:59.000Z

320

Dual-band reflectarrays using microstrip ring elements and their applications with various feeding arrangements  

E-Print Network (OSTI)

In recent years there has been a growing demand for reduced mass, small launch volume, and, at the same time, high-gain large-aperture antenna systems in modern space-borne applications. This dissertation introduces new techniques for dual-band reflectarray antennas to meet these requirements. A series of developments is presented to show the dual-band capability of the reflectarray. A novel microstrip ring structure has been developed to achieve circular polarization (CP). A C/Ka dual-band front-fed reflectarray antenna has been designed to demonstrate the dual-band circular polarized operation. The proposed ring structure provides many advantages of compact size, more freedom in the selection of element spacing, less blockage between circuit layers, and broader CP bandwidth as compared to the patches. An X/Ka dual-band offset-fed reflectarray is made of thin membranes, with their thickness equal to 0.0508 mm in both layers. Several degrading effects of thin substrates are discussed. To overcome these problems, a new configuration is developed by inserting empty spaces of the proper thickness below both the X and Ka band membranes. More than 50 % efficiencies are achieved at both frequency ranges, and the proposed scheme is expected to be a good candidate to meet the demand for future inflatable antenna systems. An X/Ka dual-band microstrip reflectarray with circular polarization has also been constructed using thin membranes and a Cassegrain offset-fed configuration. It is believed that this is the first Cassegrain reflectarray ever developed. This antenna has a 0.75-meter-diameter aperture and uses a metallic sub-reflector and angular-rotated annular ring elements. It achieved a measured 3 dB gain bandwidth of 700 MHz at Xband and 1.5 GHz at Ka-band, as well as a CP bandwidth (3 dB axial ratio) of more than 700 MHz at X-band and more than 2 GHz at Ka-band. The measured peak efficiencies are 49.8 % at X-band and 48. 2 % at Ka-band. In summary, this dissertation presents a series of new research developments to support the dual-band operation of the reflectarray antenna. The results of this work are currently being implemented onto a 3-meter reflectarray with inflatable structures at the Jet Propulsion Laboratory and are planned for other applications such as an 8-meter inflatable reflectarray in the near future.

Han, Chul Min

2006-08-01T23:59:59.000Z

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


321

Le mode d'emergence du Reel - L'avenement des manifestations de la base (gzhi snang) selon les conceptions de la Grande Perfection  

E-Print Network (OSTI)

/ gzhi ka dag chen pozhes bya ste/ ngo bo rang bzhin thugs rje rnam pa gsum du gnas so/ ngo bo de mi gyur bai ye shesma gags par gsal ba gzhon nu bum pai skui gnas lugs zhes byao/ rang bzhin od lngai snang bama gags so/ thugs rjei snang ba ni... ) rayonnante de lumire (od du gsal ba). Voir inter alia Mi pham, rDo rjesnying po, p. 358.17 Klong chen pa, Theg mchog mdzod, I, p. 295. Ici, la Compassion na pas ici expressment decaractre thique ; voir ce sujet Chgyel Namkhai Norbu & Adriano Clemente...

Achard, Jean-Luc

2005-01-01T23:59:59.000Z

322

9/7/2013 Toutes les informations donnes sur cette page sont indicatives et n'ont pas de valeur contractuelle MASTER LITTERATURES DU MONDE FRANCOPHONE  

E-Print Network (OSTI)

Linguistique et analyse du discours Linguistique textuelle 6 6 #12;9/7/2013 Toutes les informations données sur francophone : Littérature et échanges culturels L'autre francophonie Roman et histoire Linguistique et analyse'ont pas de valeur contractuelle Page 4 / 6 Linguistique textuelle Langue et société Un séminaire à choisir

Pravda-Starov, Karel

323

L'entonnoir est ici : http://cfeditions.com/entonnoir/ Du flou cognitif au flou smiotique : ce qui se joue dans l'entonnoir de Google  

E-Print Network (OSTI)

qui se joue dans l'entonnoir de Google Gabriel Gallezot - Gabriel.GALLEZOT@unice.fr Brigitte Simonnot'a cessé de se renforcer et oblige à l'analyse. La position hégémonique du moteur de recherche Google dans valeurs qu'ils promeuvent et les pratiques dont ils font l'objet. Dans l'entonnoir de Google se joue à la

Paris-Sud XI, Université de

324

BIODIVERSIT ET BIOMASSE DE LA FAUNE DU SOL SOUS CLIMAT English title: Biodiversity and biomass of soil fauna in temperate climate  

E-Print Network (OSTI)

BIODIVERSIT? ET BIOMASSE DE LA FAUNE DU SOL SOUS CLIMAT TEMP?R?: English title: Biodiversity and biomass of soil fauna in temperate climate PONGE Jean-François Museum National d'Histoire Naturelle.60.46.50.09, e-mail: jean- francois.ponge@wanadoo.fr Résumé et most-clés: Dans les sols forestiers les biomasses

Paris-Sud XI, Université de

325

RRI-GBT MULTI-BAND RECEIVER: MOTIVATION, DESIGN, AND DEVELOPMENT  

SciTech Connect

We report the design and development of a self-contained multi-band receiver (MBR) system, intended for use with a single large aperture to facilitate sensitive and high time-resolution observations simultaneously in 10 discrete frequency bands sampling a wide spectral span (100-1500 MHz) in a nearly log-periodic fashion. The development of this system was primarily motivated by need for tomographic studies of pulsar polar emission regions. Although the system design is optimized for the primary goal, it is also suited for several other interesting astronomical investigations. The system consists of a dual-polarization multi-band feed (with discrete responses corresponding to the 10 bands pre-selected as relatively radio frequency interference free), a common wide-band radio frequency front-end, and independent back-end receiver chains for the 10 individual sub-bands. The raw voltage time sequences corresponding to 16 MHz bandwidth each for the two linear polarization channels and the 10 bands are recorded at the Nyquist rate simultaneously. We present the preliminary results from the tests and pulsar observations carried out with the Robert C. Byrd Green Bank Telescope using this receiver. The system performance implied by these results and possible improvements are also briefly discussed.

Maan, Yogesh; Deshpande, Avinash A.; Chandrashekar, Vinutha; Chennamangalam, Jayanth; Rao, K. B. Raghavendra; Somashekar, R.; Ezhilarasi, M. S.; Sujatha, S.; Kasturi, S.; Sandhya, P.; Duraichelvan, R.; Amiri, Shahram; Aswathappa, H. A.; Sarabagopalan, G.; Ananda, H. M. [Raman Research Institute, Bangalore (India); Anderson, Gary; Bauserman, Jonah; Beaudet, Carla; Bloss, Marty [National Radio Astronomy Observatory, P.O. Box 2, Green Bank, WV (United States); Barve, Indrajit V. [Indian Institute of Astrophysics, Bangalore (India); and others

2013-01-15T23:59:59.000Z

326

A New Gap-Opening Mechanism in a Triple-Band Metal  

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

A New Gap-Opening Mechanism in a Triple-Band Metal Print A New Gap-Opening Mechanism in a Triple-Band Metal Print A "wire" of indium only one or a few atoms wide grown on a silicon surface comprises an ideal test laboratory for studying one-dimensional (1D) metals. A new example comes from a collaboration between researchers from Yonsei University in Korea, the ALS, and the University of Oregon, who have discovered that the phase transition from metal to insulator that occurs at low temperature in indium wires on the silicon (111) surface involves not only the expected shift in the electronic structure (band-gap opening) but also a band restructuring that gives rise to an energy gap in a second band. Three's a Crowd For the condensed-matter physicist, the words "electronic structure" are what it's all about. Short-hand for a description of the way electrons behave in solids, liquids, molecules, and even atoms, electronic structure underlies almost all of the everyday properties of matter from structural strength to electrical conductivity. For example, metals conduct electricity because some of their electrons have access to a continuous band of energies, whereas a break or gap in the band turns the metal into an insulator.

327

A New Gap-Opening Mechanism in a Triple-Band Metal  

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

A New Gap-Opening Mechanism in a Triple-Band Metal Print A New Gap-Opening Mechanism in a Triple-Band Metal Print A "wire" of indium only one or a few atoms wide grown on a silicon surface comprises an ideal test laboratory for studying one-dimensional (1D) metals. A new example comes from a collaboration between researchers from Yonsei University in Korea, the ALS, and the University of Oregon, who have discovered that the phase transition from metal to insulator that occurs at low temperature in indium wires on the silicon (111) surface involves not only the expected shift in the electronic structure (band-gap opening) but also a band restructuring that gives rise to an energy gap in a second band. Three's a Crowd For the condensed-matter physicist, the words "electronic structure" are what it's all about. Short-hand for a description of the way electrons behave in solids, liquids, molecules, and even atoms, electronic structure underlies almost all of the everyday properties of matter from structural strength to electrical conductivity. For example, metals conduct electricity because some of their electrons have access to a continuous band of energies, whereas a break or gap in the band turns the metal into an insulator.

328

Unpaired band crossings in the A{approx}160 mass region  

Science Conference Proceedings (OSTI)

Levels schemes for a number of low lying normally deformed bands in {sup 161,162}Er have been extended to significantly higher spins than hitherto using the EUROBALL Ge detector array sited at the Legnaro National Laboratory. In the case of one band in {sup 161}Er states have tentatively been observed to a spin in excess of 60({Dirac_h}/2{pi}). Evidence is found for a band crossing at high spin in the yrast even parity, positive signature (+, +1/2) band in {sup 161}Er. This can be explained in terms of a system in which the static pairing is quenched either involving a rearrangement of two neutrons into steeply aligning i{sub 13/2} orbitals or possibly an interchange of state of one proton and one neutron. A similar type of band crossing is tentatively identified in the lowest (-,-1/2) band of {sup 161}Er. Since a crossing involving the interchange of neutrons is blocked, this must involve protons. This, if confirmed, provides the first direct evidence for the quenching of static proton pairing at high spin in this mass region. Recent calculations [1] predict that such a crossing involving purely protons will occur in this band at I{approx}60({Dirac_h}/2{pi})

Lisle, J. C.; Bagshaw, A. P.; Dagnall, P. J.; Smith, A. G. [Department of Physics and Astronomy, University of Manchester, Manchester M13 9PL (United Kingdom); Simpson, J. [CLRC, Daresbury Laboratory, Warrington WA4 4AD (United Kingdom); Bentley, M. A. [School of Sciences, University of Stafford, Stoke-on-Trent ST4 2DE (United Kingdom); Cullen, D. M.; King, S. L.; Shepherd, S. [Department of Physics, University of Liverpool, Liverpool L69 3BX (United Kingdom); Hagemann, G. B.; Tormanen, S. [Niels Bohr Institute, Blegdamsvej 17, DK-2100 Copenhagen (Denmark); Napoli, D. [INFN, Laboratori Nazionali di Legnaro, I-35020 Legnaro (Italy); Riley, M. [Department of Physics, Florida State University, Tallahassee (United States)

1999-09-02T23:59:59.000Z

329

Effect of interfacial lattice mismatch on bulk carrier concentration and band gap of InN  

SciTech Connect

The issue of ambiguous values of the band gap (0.6 to 2 eV) of InN thin film in literature has been addressed by a careful experiment. We have grown wurtzite InN films by PA-MBE simultaneously on differently modified c-plane sapphire substrates and characterized by complementary structural and chemical probes. Our studies discount Mie resonances caused by metallic In segregation at grain boundaries as the reason for low band gap values ( Almost-Equal-To 0.6 eV) and also the formation of Indium oxides and oxynitrides as the cause for high band gap value ( Almost-Equal-To 2.0 eV). It is observed that polycrystallinity arising from azimuthal miss-orientation of c-oriented wurtzite InN crystals increases the carrier concentration and the band gap values. We have reviewed the band gap, carrier concentration, and effective mass of InN in literature and our own measurements, which show that the Moss-Burstein relation with a non-parabolic conduction band accounts for the observed variation of band gap with carrier concentration.

Kuyyalil, Jithesh [FOTON, UMR 6082, INSA, F-35708 Rennes (France); Tangi, Malleswararao; Shivaprasad, S. M. [Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bangalore-560064 (India)

2012-10-15T23:59:59.000Z

330

A New Gap-Opening Mechanism in a Triple-Band Metal  

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

A New Gap-Opening Mechanism in a Triple-Band Metal Print A New Gap-Opening Mechanism in a Triple-Band Metal Print A "wire" of indium only one or a few atoms wide grown on a silicon surface comprises an ideal test laboratory for studying one-dimensional (1D) metals. A new example comes from a collaboration between researchers from Yonsei University in Korea, the ALS, and the University of Oregon, who have discovered that the phase transition from metal to insulator that occurs at low temperature in indium wires on the silicon (111) surface involves not only the expected shift in the electronic structure (band-gap opening) but also a band restructuring that gives rise to an energy gap in a second band. Three's a Crowd For the condensed-matter physicist, the words "electronic structure" are what it's all about. Short-hand for a description of the way electrons behave in solids, liquids, molecules, and even atoms, electronic structure underlies almost all of the everyday properties of matter from structural strength to electrical conductivity. For example, metals conduct electricity because some of their electrons have access to a continuous band of energies, whereas a break or gap in the band turns the metal into an insulator.

331

Band gap tuning and optical absorption in type-II InAs/GaSb mid infrared short period superlattices: 14 bands K Dot-Operator p study  

Science Conference Proceedings (OSTI)

The MBE growth of short-period InAs/GaSb type-II superlattice structures, varied around 20.5 A InAs/24 A GaSb were [J. Applied physics, 96, 2580 (2004)] carried out by Haugan et al. These SLs were designed to produce devices with an optimum mid-infrared photoresponse and a sharpest photoresponse cutoff. We have used a realistic and reliable 14-band k.p formalism description of the superlattice electronic band structure to calculate the absorption coefficient in such short-period InAs/GaSb type-II superlattices. The parameters for this formalism are known from fitting to independent experiments for the bulk materials. The band-gap energies are obtained without any fitting parameters, and are in good agreement with experimental data.

AbuEl-Rub, Khaled M. [Department of Applied Physical Sciences, Jordan University of Science and Technology Irbid, 21141 (Jordan)

2012-09-06T23:59:59.000Z

332

Why are the interband transitions among triaxially strongly deformed bands suppressed in even nuclei?  

Science Conference Proceedings (OSTI)

As top-on-top model has made a great success in explaining triaxially strongly deformed (TSD) bands in odd-A nuclei, we extend this model to even-A nuclei, i.e. two particles in different single-particle orbitals outside the triaxial rotor. In the lowest order approximation, the electromagnetic transitions between TSD bands in even-A case are reduced by a factor of 0.04 compared with odd-A case. It is one of the reasons why TSD bands are not yet explicitly observed in even-A nuclei.

Sugawara-Tanabe, Kazuko [Otsuma Women's University, Tama, Tokyo 206-8540 (Japan); Theoretical Nuclear Physics Laboratory, RIKEN Nishina Center, Wako, Saitama 351-0198 (Japan); Tanabe, Kosai [Department of Physics, Saitama University, Sakura-ku, Saitama 338-8570 (Japan); Theoretical Nuclear Physics Laboratory, RIKEN Nishina Center, Wako, Saitama 351-0198 (Japan)

2011-05-06T23:59:59.000Z

333

Gamma band synchronization and the formation of representations in visual word processing: Evidence from repetition and homophone priming  

Science Conference Proceedings (OSTI)

The formation of an object's cortical representation seems to rely on synchronized neuronal activity within the gamma band frequency range (gamma band activity [GBA]). In this study, we investigated whether electroencephalogram (EEG) GBA, and its phase ...

Atsushi Matsumoto; Tetsuya Iidaka

2008-11-01T23:59:59.000Z

334

A Comparative Study of Rainfall Retrievals Based on Specific Differential Phase Shifts at X- and S-Band Radar Frequencies  

Science Conference Proceedings (OSTI)

A comparative study of the use of X- and S-band polarimetric radars for rainfall parameter retrievals is presented. The main advantage of X-band polarimetric measurements is the availability of reliable specific differential phase shift estimates,...

Sergey Y. Matrosov; Robert Cifelli; Patrick C. Kennedy; Steven W. Nesbitt; Steven A. Rutledge; V. N. Bringi; Brooks E. Martner

2006-07-01T23:59:59.000Z

335

Raindrop Size Distributions and Rain Characteristics in California Coastal Rainfall for Periods with and without a Radar Bright Band  

Science Conference Proceedings (OSTI)

Recent studies using vertically pointing S-band profiling radars showed that coastal winter storms in California and Oregon frequently do not display a melting-layer radar bright band and inferred that these nonbrightband (NBB) periods are ...

Brooks E. Martner; Sandra E. Yuter; Allen B. White; Sergey Y. Matrosov; David E. Kingsmill; F. Martin Ralph

2008-06-01T23:59:59.000Z

336

A 3-10 GHz, 14 bands CMOS frequency synthesizer with spurs reduction for MB-OFDM UWB system  

Science Conference Proceedings (OSTI)

This paper presents the design of a 14 bands CMOS frequency synthesizer with spurs reduction for MB-OFDM UWB system. Based on a single phase-locked loop and two-stage frequency mixing architecture, it alleviates harmonics mixing and frequency pulling ... Keywords: I/Q calibration, frequency synthesizer, multi-band orthogonal frequency division multiplexing (MB-OFDM) ultra-wide band (UWB), phase-locked loop (PLL), single-side band (SSB) mixer

Tai-You Lu, Wei-Zen Chen

2012-05-01T23:59:59.000Z

337

Influence of Filter Band Function on Retrieval of Aerosol Optical Depth from Sunphotometer Data  

Science Conference Proceedings (OSTI)

Beers attenuation law is the basis for the retrieval of aerosol optical depth (AOD) from sunphotometer data. However, the filter band function causes uncertainty during the retrieval of AOD from sunphotometer data, particularly for channels ...

Hao Zhang; Bing Zhang; Dongmei Chen; Junsheng Li; Guangning Zhao

2013-05-01T23:59:59.000Z

338

Comparison of Advanced Radar Polarimetric Techniques for Operational Attenuation Correction at C Band  

Science Conference Proceedings (OSTI)

Rain path attenuation correction is a challenging task for quantitative use of weather radar measurements at frequencies higher than S band. The proportionality relationship between specific attenuation ?hh (specific differential attenuation ?dp) ...

Gianfranco Vulpiani; Pierre Tabary; Jacques Parent du Chatelet; Frank S. Marzano

2008-07-01T23:59:59.000Z

339

Prediction of semiconductor band edge positions in aqueous environments from first principles  

E-Print Network (OSTI)

The ability to predict a semiconductor's band edge positions in solution is important for the design of water-splitting photocatalyst materials. In this paper, we introduce a first-principles method to compute the ...

Wu, Yabi

340

ARM - Evaluation Product - Active Remote Sensing of Clouds from Ka-band ARM  

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

ProductsActive Remote Sensing of Clouds from Ka-band ProductsActive Remote Sensing of Clouds from Ka-band ARM Zenith Radars Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Evaluation Product : Active Remote Sensing of Clouds from Ka-band ARM Zenith Radars Site(s) GAN SGP General Description The Ka-band ARM Zenith Radars (KAZRs) have replaced the long-serving Millimeter Cloud Radars, or MMCRs. Accordingly, the primary MMCR Value Added Product (VAP), the Active Remote Sensing of CLouds (ARSCL) product, is being replaced by a KAZR-based version, the KAZR-ARSCL VAP. KAZR-ARSCL provides cloud boundaries and best-estimate time-height fields of radar moments. KAZR observations are corrected for water vapor attenuation and velocity aliasing and significant detection masks are produced. KAZR-ARSCL

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


341

Spin-disorder scattering and band structure of the ferromagnetic chalcogenide spinels  

Science Conference Proceedings (OSTI)

Magnetic semiconductors are characterized by the presence of charge carriers and magnetic moments. The interaction between the charge carriers and the magnetic moments leads to a spin splitting of the energy bands, and to spin-disorder scattering of ...

C. Haas

1970-05-01T23:59:59.000Z

342

Ultra-High Gradient Compact S-Band Linac for Laboratory and Industrial Applications  

SciTech Connect

There is growing demand from the industrial and research communities for high gradient, compact RF accelerating structures. The commonly used S-band SLAC-type structure has an operating gradient of only about 20 MV/m; while much higher operating gradients (up to 70 MV/m) have been recently achieved in X-band, as a consequence of the substantial efforts by the Next Linear Collider (NLC) collaboration to push the performance envelope of RF structures towards higher accelerating gradients. Currently however, high power X-band RF sources are not readily available for industrial applications. Therefore, RadiaBeam Technologies is developing a short, standing wave S-band structure which uses frequency scaled NLC design concepts to achieve up to a 50 MV/m operating gradient at 2856 MHz. The design and prototype commissioning plans are presented.

Faillace, Luigi; /RadiaBeam Tech.; Agustsson, Ronald; /RadiaBeam Tech.; Frigola, Pedro; /RadiaBeam Tech.; Murokh, Alex; /RadiaBeam Tech.; Dolgashev, Valery; /SLAC; Rosenzweig, James; /UCLA

2012-07-03T23:59:59.000Z

343

Quantitative Precipitation Estimation in the CASA X-band Dual-Polarization Radar Network  

Science Conference Proceedings (OSTI)

This paper presents the sensing aspects and performance evaluation of the quantitative precipitation estimation (QPE) system in an X-band dual-polarization radar network developed by the Collaborative Adaptive Sensing of the Atmosphere (CASA) ...

Yanting Wang; V. Chandrasekar

2010-10-01T23:59:59.000Z

344

C-Band High Power RF Generation and Extraction Using a Dielectric...  

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

C-BAND HIGH POWER RF GENERATION AND EXTRACTION USING A DIELECTRIC LOADED WAVEGUIDE* F. Gao , M. Conde, W. Gai, R. Konecny, W. Liu, J. Power, Z. Yusof ANL, Argonne, IL 60439,...

345

The BMRC/NCAR C-Band Polarimetric (C-POL) Radar System  

Science Conference Proceedings (OSTI)

The development of the first Australian C-band polarimetric/Doppler meteorological radar system (C-POL) is described. Motivated by the need to obtain improved rainfall estimation and the vertical profile of hydrometeors, C-POL was developed ...

T. Keenan; K. Glasson; F. Cummings; T. S. Bird; J. Keeler; J. Lutz

1998-08-01T23:59:59.000Z

346

Calculation of wakefields in a 17 GHz beam-driven photonic band-gap accelerator structure  

E-Print Network (OSTI)

We present the theoretical analysis and computer simulation of the wakefields in a 17 GHz photonic band-gap (PBG) structure for accelerator applications. Using the commercial code CST Particle Studio, the fundamental ...

Hu, Min

347

Land Surface Pressure Estimate from Measurements in the Oxygen A Absorption Band  

Science Conference Proceedings (OSTI)

The POLDER (polarization and directionality of the earth reflectances) instrument to be launched in 1996 carries two channels that cover the oxygen A absorption band (near IR). The authors investigate the possibility of using these measurements ...

Franois-Marie Bron; Sophie Bouffis

1996-01-01T23:59:59.000Z

348

High Resolution Hurricane Vector Winds from C-band Dual-Polarization SAR Observations  

Science Conference Proceedings (OSTI)

This study presents a new approach for retrieving hurricane surface wind vectors utilizing C-band dual-polarization (VV, VH) synthetic aperture radar (SAR) observations. The co-polarized geophysical model function (CMOD5.N) and a new cross-...

Biao Zhang; William Perrie; Jun A. Zhang; Eric W. Uhlhorn; Yijun He

349

Snow-Band Formation and Evolution during the 15 November 1987 Aircraft Accident at Denver Airport  

Science Conference Proceedings (OSTI)

The formation and evolution of convective rain and snow bands prior to and during the crash of Continental Airlines flight 1713 on 15 November 1987 at Denver Stapleton Airport are discussed. Convective rain occurred during the early stages of the ...

Roy M. Rasmussen; Andrew Crook; Cathy Kessinger

1993-12-01T23:59:59.000Z

350

A C-Band Coherent Polarimetric Radar for Propagation and Cloud Physics Research  

Science Conference Proceedings (OSTI)

At DFVLR in Oberpfaffenhofen, West Germany, a recently developed coherent polarimetric C-band radar is now in operation for research in atmospheric physics and radio wave propagation physics. Its capabilities provide opportunities to investigate ...

Arno C. Schroth; Madhukar S. Chandra; Peter F. Mesichner

1988-12-01T23:59:59.000Z

351

Mesoscale Motion Fields Associated with a Slowly Moving GATE Convective Band  

Science Conference Proceedings (OSTI)

The structure of the convective band of 14 September in the dense GATE observing array is determined using wind and thermodynamic data primarily from multiple aircraft penetrations, which are well distributed in the vertical and in time.

Edward J. Zipser; Rebecca J. Meitn; Margaret A. LeMone

1981-08-01T23:59:59.000Z

352

ZB/WZ Band Offsets and Carrier Localization in CdTe Solar Cells  

DOE Green Energy (OSTI)

Using the first principles band-structure method, we studied systematically the stability and electronic structure of CdX (X=S, Se, and Te) semiconductors with the zinc-blende (ZB) and wurtzite (WZ) crystal structures.

Wei, S.-H.; Zhang, S. B.

2000-01-01T23:59:59.000Z

353

Dual-band ultraviolet-short-wavelength infrared imaging via luminescent downshifting with colloidal quantum dots  

E-Print Network (OSTI)

The performance of short-wavelength infrared (SWIR) cameras in the visible and ultraviolet (UV) regions is limited by the absorption of high-energy photons in inactive regions of the imaging array. Dual-band UV-SWIR imaging ...

Geyer, Scott M.

354

Attenuation Calibration of an X-Band Weather Radar Using a Microwave Link  

Science Conference Proceedings (OSTI)

The attenuation of a radar signal is a serious problem facing meteorologists and hydrologists. In heavy rain, reflectivity information can be completely lost from large portions of a radar scan. The problem is particularly acute for X-band ...

A. R. Rahimi; A. R. Holt; G. J. G. Upton; S. Krmer; A. Redder; H-R. Verworn

2006-03-01T23:59:59.000Z

355

Attenuation-Based Estimates of Rainfall Rates Aloft with Vertically Pointing Ka-Band Radars  

Science Conference Proceedings (OSTI)

An approach is suggested to retrieve low-resolution rainfall rate profiles and layer-averaged rainfall rates, Ra, from radar reflectivity measurements made by vertically pointing Ka-band radars. This approach is based on the effects of ...

Sergey Y. Matrosov

2005-01-01T23:59:59.000Z

356

Very Narrow Band Model Calculations of Atmospheric Fluxes and Cooling Rates  

Science Conference Proceedings (OSTI)

A new very narrow band model (VNBM) approach has been developed and incorporated into the MODTRAN atmospheric transmittanceradiance code. The VNBM includes a computational spectral resolution of 1 cm?1, a single-line Voigt equivalent width ...

L. S. Bernstein; A. Berk; P. K. Acharya; D. C. Robertson; G. P. Anderson; J. H. Chetwynd; L. M. Kimball

1996-10-01T23:59:59.000Z

357

The Contributions of Several Absorption Bands to Stratospheric Radiative Dissipation Rates  

Science Conference Proceedings (OSTI)

A narrowband (5 cm?1) radiation transfer scheme has been used to calculate scale-dependent radiative dissipation rates for finite-amplitude temperature disturbances. Eight bands of five atmospheric trace gases have been examined. As previously ...

Gerd Breer; Steven Pawson

1996-05-01T23:59:59.000Z

358

Correlations between Analyses and Forecasts of Banded Heavy Snow Ingredients and Observed Snowfall  

Science Conference Proceedings (OSTI)

North American Mesoscale (NAM) model forecasts of the occurrence, magnitude, depth, and persistence of ingredients previously shown to be useful in the diagnosis of banded and/or heavy snowfall potential are examined for a broad range of 25 snow ...

Michael Evans; Michael L. Jurewicz Sr.

2009-02-01T23:59:59.000Z

359

High-Precision, High-Resolution Measurements of Absorption in the Oxygen A-Band  

Science Conference Proceedings (OSTI)

Issues arising in the application of high-resolution, high-precision spectroscopy to remote sensing are discussed in the context of deriving surface pressure from absorption in the O2 A-band. This application requires spectral resolution ...

D. M. OBrien; S. A. English; Grant Da Costa

1997-02-01T23:59:59.000Z

360

Detection of Ice Hydrometeor Alignment Using an Airborne W-band Polarimetric Radar  

Science Conference Proceedings (OSTI)

This paper presents airborne W-band polarimetric radar measurements at horizontal and vertical incidence on ice clouds using a 95-GHz radar on the University of Wyoming King Air research aircraft. Coincident, in situ measurements from probes on ...

J. Galloway; A. Pazmany; J. Mead; R. E. McIntosh; D. Leon; J. French; R. Kelly; G. Vali

1997-02-01T23:59:59.000Z

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


361

Retrieval of Three-Dimensional Raindrop Size Distribution Using X-Band Polarimetric Radar Data  

Science Conference Proceedings (OSTI)

An improved algorithm based on the self-consistent principle for rain attenuation correction of reflectivity ZH and differential reflectivity ZDR are presented for X-band radar. The proposed algorithm calculates the optimum coefficients for the ...

D-S. Kim; M. Maki; D-I. Lee

2010-08-01T23:59:59.000Z

362

Electrically detected magnetic resonance in a W-band microwave cavity  

SciTech Connect

We describe a low-temperature sample probe for the electrical detection of magnetic resonance in a resonant W-band (94 GHz) microwave cavity. The advantages of this approach are demonstrated by experiments on silicon field-effect transistors. A comparison with conventional low-frequency measurements at X-band (9.7 GHz) on the same devices reveals an up to 100-fold enhancement of the signal intensity. In addition, resonance lines that are unresolved at X-band are clearly separated in the W-band measurements. Electrically detected magnetic resonance at high magnetic fields and high microwave frequencies is therefore a very sensitive technique for studying electron spins with an enhanced spectral resolution and sensitivity.

Lang, V.; Lo, C. C.; George, R. E.; Lyon, S. A.; Bokor, J.; Schenkel, T.; Ardavan, A.; Morton, J. J. L.

2011-01-14T23:59:59.000Z

363

X-band radar based SLAM in Singapore's off-shore environment  

E-Print Network (OSTI)

This paper presents a simultaneous localisation and mapping (SLAM) algorithm implemented on an autonomous sea kayak with a commercial off-the-shelf X-band marine radar mounted. The Autonomous Surface Craft (ASC) was driven ...

Hover, Franz S.

2010-01-01T23:59:59.000Z

364

Measurements and Simulations of Nadir-Viewing Radar Returns from the Melting Layer at X and W Bands  

Science Conference Proceedings (OSTI)

Simulated radar signatures within the melting layer in stratiform rainnamely, the radar bright bandare checked by means of comparisons with simultaneous measurements of the bright band made by the ER-2 Doppler radar (EDOP; X band) and Cloud ...

Liang Liao; Robert Meneghini; Lin Tian; Gerald M. Heymsfield

2009-11-01T23:59:59.000Z

365

High Performance Data Transfer in Grid Environment Using GridFTP over InfiniBand  

Science Conference Proceedings (OSTI)

GridFTP, designed using the Globus XIO framework, is one of the most popular methods in use to perform data transfers in the grid environment. But the performance of GridFTP in WAN is limited by the relatively low communication bandwidth offered by the ... Keywords: GridFTP, RDMA, Zero-Copy, Globus-XIO, Cluster-of-Clusters, InfiniBand, Obsidian Longbow XR, InfiniBand WAN and iWARP

Hari Subramoni; Ping Lai; Raj Kettimuthu; Dhabaleswar K. Panda

2010-05-01T23:59:59.000Z

366

Performance characteristics of a perforated shadow band under clear sky conditions  

SciTech Connect

A perforated, non-rotating shadow band is described for separating global solar irradiance into its diffuse and direct normal components using a single pyranometer. Whereas shadow bands are normally solid so as to occult the sensor of a pyranometer throughout the day, the proposed band has apertures cut from its circumference to intermittently expose the instrument sensor at preset intervals. Under clear sky conditions the device produces a saw tooth waveform of irradiance data from which it is possible to reconstruct separate global and diffuse curves. The direct normal irradiance may then be calculated giving a complete breakdown of the irradiance curves without need of a second instrument or rotating shadow band. This paper describes the principle of operation of the band and gives a mathematical model of its shading mask based on the results of an optical ray tracing study. An algorithm for processing the data from the perforated band system is described and evaluated. In an extended trial conducted at NREL's Solar Radiation Research Laboratory, the band coupled with a thermally corrected Eppley PSP produced independent curves for diffuse, global and direct normal irradiance with low mean bias errors of 5.6 W/m{sup 2}, 0.3 W/m{sup 2} and -2.6 W/m{sup 2} respectively, relative to collocated reference instruments. Random uncertainties were 9.7 W/m{sup 2} (diffuse), 17.3 W/m{sup 2} (global) and 19.0 W/m{sup 2} (direct). When the data processing algorithm was modified to include the ray trace model of sensor exposure, uncertainties increased only marginally, confirming the effectiveness of the model. Deployment of the perforated band system can potentially increase the accuracy of data from ground stations in predominantly sunny areas where instrumentation is limited to a single pyranometer. (author)

Brooks, Michael J. [School of Mechanical Engineering, University of KwaZulu-Natal, Durban (South Africa)

2010-12-15T23:59:59.000Z

367

Theoretical band structure analysis on possible high-Z detector materials  

SciTech Connect

Theoretical energy band structure calculations have been utilized to investigate several high-Z materials for potential use as ambient temperature radiation detectors. Using the pseudopotential technique, the band structure for HgI$sub 2$ has been determined and the effective masses of the holes and electrons have been estimated. Theoretical mobilities of the electrons and holes as a function of temperature have been computed for HgI$sub 2$ and CdTe and are compared to experimental data. (auth)

Yee, J.H.; Sherohman, J.W.; Armantrout, G.A.

1975-11-18T23:59:59.000Z

368

Thermophotovoltaic conversion using selective infrared line emitters and large band gap photovoltaic devices  

DOE Patents (OSTI)

Efficient thermophotovoltaic conversion can be performed using photovoltaic devices with a band gap in the 0.75-1.4 electron volt range, and selective infrared emitters chosen from among the rare earth oxides which are thermally stimulated to emit infrared radiation whose energy very largely corresponds to the aforementioned band gap. It is possible to use thermovoltaic devices operating at relatively high temperatures, up to about 300.degree. C., without seriously impairing the efficiency of energy conversion.

Brandhorst, Jr., Henry W. (Auburn, AL); Chen, Zheng (Auburn, AL)

2000-01-01T23:59:59.000Z

369

Solar DEM Models : A solar image in color band b, mn pixels,  

E-Print Network (OSTI)

Solar DEM Models : A solar image in color band b, m?n pixels, containing a particular solar feature, for t = 1, 2, . . . , T. btM sianFieldRandomGaus I M I I bbb T t bbtt bbb bb 2 1 2 )( #12;Solar DEM.bI : the measure error of the ith row and jth column pixel of the certain image in color band b. ijbe #12;Solar DEM

Wolfe, Patrick J.

370

Electronic band structure and optical properties of the cubic, Sc, Y and La hydride systems  

DOE Green Energy (OSTI)

Electronic band structure calculations are used to interpret the optical spectra of the cubic Sc, Y and La hydride systems. Self-consistent band calculations of ScH/sub 2/ and YH/sub 2/ were carried out. The respective joint densities of states are computed and compared to the dielectric functions determined from the optical measurements. Additional calculations were performed in which the Fermi level or band gap energies are rigidly shifted by a small energy increment. These calculations are then used to simulate the derivative structure in thermomodulation spectra and relate the origin of experimental interband features to the calculated energy bands. While good systematic agreement is obtained for several spectral features, the origin of low-energy interband transitions in YH/sub 2/ cannot be explained by these calculated bands. A lattice-size-dependent premature occupation of octahedral sites by hydrogen atoms in the fcc metal lattice is suggested to account for this discrepancy. Various non-self-consistent calculations are used to examine the effect of such a premature occupation. Measurements of the optical absorptivity of LaH/sub x/ with 1.6 < x < 2.9 are presented which, as expected, indicate a more premature occupation of the octahedral sites in the larger LaH/sub 2/ lattice. These experimental results also suggest that, in contrast to recent calculations, LaH/sub 3/ is a small-band-gap semiconductor.

Peterman, D.J.

1980-01-01T23:59:59.000Z

371

A ROTATING METAL BAND TARGET FOR PION PRODUCTION AT MUON COLLIDERS.  

Science Conference Proceedings (OSTI)

A conceptual design is presented for a high power pion production target for muon colliders that is based on a rotating metal band. Three candidate materials are considered for the target band: inconel alloy 718, titanium alloy 6Al-4V grade 5 and nickel. A pulsed proton beam tangentially intercepts a chord of the target band that is inside a 20 Tesla tapered solenoidal magnetic pion capture channel similar to designs previously considered for muon colliders and neutrino factories. The target band has a radius of 2.5 meters and is continuously rotated at approximately 1 m/s to carry heat away from the production region and through a water cooling tank. The mechanical layout and cooling setup of the target are described, including the procedure for the routine replacement of the target band. A rectangular band cross section is assumed, optionally with I-beam struts to enhance stiffness and minimize mechanical vibrations. Results are presented from realistic MARS Monte Carlo computer simulations of the pion yield and energy deposition in the target and from ANSYS finite element calculations for the corresponding shock heating stresses. The target scenario is found to perform satisfactorily and with conservative safety margins for multi-MW pulsed proton beams.

KING,B.J.; SIMOS,N.; WEGGEL,R.V.; MOKHOV,N.V.

2002-01-18T23:59:59.000Z

372

Cent troisime session du Conseil du CERN  

E-Print Network (OSTI)

From the lowest energy levels at ISOLDE to the highest at LHC, the Director-General reported a successful year. The accelerators worked better than ever, and the LHC's baseline design was finalised. ISOLDE produces radioactive beams for applications in nuclear physics, particle and astrophysics, solid state physics, atomic physics, biology, and medicine.

CERN Press Office. Geneva

1995-01-01T23:59:59.000Z

373

Apparatus for producing a thin sample band in a microchannel system  

DOE Patents (OSTI)

The present invention improves the performance of microchannel systems for chemical and biological synthesis and analysis by providing a method and apparatus for producing a thin band of a species sample. Thin sample bands improve the resolution of microchannel separation processes, as well as many other processes requiring precise control of sample size and volume. The new method comprises a series of steps in which a species sample is manipulated by controlled transport through a junction formed at the intersection of four or more channels. A sample is first inserted into the end of one of these channels in the vicinity of the junction. Next, this sample is thinned by transport across the junction one or more times. During these thinning steps, flow enters the junction through one of the channels and exists through those remaining, providing a divergent flow field that progressively stretches and thins the band with each traverse of the junction. The thickness of the resulting sample band may be smaller than the channel width. Moreover, the thickness of the band may be varied and controlled by altering the method alone, without modification to the channel or junction geometries. The invention is applicable to both electroosmotic and electrophoretic transport, to combined electrokinetic transport, and to some special cases in which bulk fluid transport is driven by pressure gradients. It is further applicable to channels that are open, filled with a gel or filled with a porous or granular material.

Griffiths, Stewart K. (Livermore, CA; , Nilson, Robert H. (Cardiff, CA)

2008-05-13T23:59:59.000Z

374

Method for producing a thin sample band in a microchannel device  

DOE Patents (OSTI)

The present invention improves the performance of microchannel systems for chemical and biological synthesis and analysis by providing a method and apparatus for producing a thin band of a species sample. Thin sample bands improve the resolution of microchannel separation processes, as well as many other processes requiring precise control of sample size and volume. The new method comprises a series of steps in which a species sample is manipulated by controlled transport through a junction formed at the intersection of four or more channels. A sample is first inserted into the end of one of these channels in the vicinity of the junction. Next, this sample is thinned by transport across the junction one or more times. During these thinning steps, flow enters the junction through one of the channels and exists through those remaining, providing a divergent flow field that progressively stretches and thins the band with each traverse of the junction. The thickness of the resulting sample band may be smaller than the channel width. Moreover, the thickness of the band may be varied and controlled by altering the method alone, without modification to the channel or junction geometries. The invention is applicable to both electroosmotic and electrophoretic transport, to combined electrokinetic transport, and to some special cases in which bulk fluid transport is driven by pressure gradients. It is further applicable to channels that are open, filled with a gel or filled with a porous or granular material.

Griffiths, Stewart K. (Livermore, CA); Nilson, Robert H. (Cardiff, CA)

2004-08-03T23:59:59.000Z

375

Band-gap measurements of direct and indirect semiconductors using monochromated electrons  

Science Conference Proceedings (OSTI)

With the development of monochromators for transmission electron microscopes, valence electron-energy-loss spectroscopy (VEELS) has become a powerful technique to study the band structure of materials with high spatial resolution. However, artifacts such as Cerenkov radiation pose a limit for interpretation of the low-loss spectra. In order to reveal the exact band-gap onset using the VEELS method, semiconductors with direct and indirect band-gap transitions have to be treated differently. For direct semiconductors, spectra acquired at thin regions can efficiently minimize the Cerenkov effects. Examples of hexagonal GaN (h-GaN) spectra acquired at different thickness showed that a correct band-gap onset value can be obtained for sample thicknesses up to 0.5 t/{lambda}. In addition, {omega}-q maps acquired at different specimen thicknesses confirm the thickness dependency of Cerenkov losses. For indirect semiconductors, the correct band-gap onset can be obtained in the dark-field mode when the required momentum transfer for indirect transition is satisfied. Dark-field VEEL spectroscopy using a star-shaped entrance aperture provides a way of removing Cerenkov effects in diffraction mode. Examples of Si spectra acquired by displacing the objective aperture revealed the exact indirect transition gap E{sub g} of 1.1 eV.

Gu Lin; Srot, Vesna; Sigle, Wilfried; Koch, Christoph; Aken, Peter van; Ruehle, Manfred [Max-Planck Institute for Metals Research, Heisenbergstrasse 3, D-70569 Stuttgart (Germany); Scholz, Ferdinand; Thapa, Sarad B.; Kirchner, Christoph [Institute of Optoelectronics, University of Ulm, Albert-Einstein-Allee 45, D-89069 Ulm (Germany); Jetter, Michael [Institut fuer Strahlenphysik, University of Stuttgart, D-70569 Stuttgart (Germany)

2007-05-15T23:59:59.000Z

376

Candidate chiral doublet bands in the odd-odd nucleus $^{126}$Cs  

E-Print Network (OSTI)

The candidate chiral doublet bands recently observed in $^{126}$Cs have been extended to higher spins, several new linking transitions between the two partner members of the chiral doublet bands are observed, and $\\gamma$$-$intensities related to the chiral doublet bands are presented by analyzing the $\\gamma$$-$$\\gamma$ coincidence data collected earlier at the NORDBALL through the $^{116}$Cd$($$^{14}$N, 4n$)$$^{126}$Cs reaction at a beam energy of 65 MeV. The intraband $B(M1)/B(E2)$ and interband $B(M1)_{in}/B(M1)_{out}$ ratios and the energy staggering parameter, S(I), have been deduced for these doublet bands. The results are found to be consistent with the chiral interpretation for the two structures. Furthermore, the observation of chiral doublet bands in $^{126}$Cs together with those in $^{124}$Cs, $^{128}$Cs, $^{130}$Cs and $^{132}$Cs also indicates that the chiral conditions do not change rapidly with decreasing neutron number in these odd-odd Cesium isotopes.

S. Y. Wang; Y. Z. Liu; T. Komatsubara; Y. J. Ma; Y. H. Zhang

2007-02-05T23:59:59.000Z

377

ARM - Midlatitude Continental Convective Clouds Experiment (MC3E): Multi-Frequency Profilers, S-band Radar (williams-s_band)  

DOE Data Explorer (OSTI)

This data was collected by the NOAA 449-MHz and 2.8-GHz profilers in support of the Department of Energy (DOE) and NASA sponsored Mid-latitude Continental Convective Cloud Experiment (MC3E). The profiling radars were deployed in Northern Oklahoma at the DOE Atmospheric Radiation Mission (ARM) Southern Great Plans (SGP) Central Facility from 22 April through 6 June 2011. NOAA deployed three instruments: a Parsivel disdrometer, a 2.8-GHz profiler, and a 449-MHz profiler. The parasivel provided surface estimates of the raindrop size distribution and is the reference used to absolutely calibrate the 2.8 GHz profiler. The 2.8-GHz profiler provided unattenuated reflectivity profiles of the precipitation. The 449-MHz profiler provided estimates of the vertical air motion during precipitation from near the surface to just below the freezing level. By using the combination of 2.8-GHz and 449-MHz profiler observations, vertical profiles of raindrop size distributions can be retrieved. The profilers are often reference by their frequency band: the 2.8-GHz profiler operates in the S-band and the 449-MHz profiler operates in the UHF band. The raw observations are available as well as calibrated spectra and moments. This document describes how the instruments were deployed, how the data was collected, and the format of the archived data.

Christopher Williams

378

La Liste Des Tantras Du rNying Ma'i Rgyud 'bum Selon L'edition Et Ablie Par Kun Mkhyen 'Jigs Med Gling Pa  

E-Print Network (OSTI)

gro bai rgyud lnga) qui sontcommuns lAnuyoga24 et dont la liste concerne les nos. 229, 224, 169, 166 etun Ri bo brtsegs pai rgyud qui est non-identifi dans la liste de Jigs med glingpa),xvi. le Recueillement Concentr (Ting dzin rtse gcig, non... on pourrait leur en trouver une, ainsi quon la fait dans cette prsentation. Il faudrait galement appliquer ce schma celui des clas- sification complexes du Klong sde en Abme blanc (klong dkar po), noir (klong nag po), diapr (klong khra bo) et infini...

Achard, Jean-Luc

2002-01-01T23:59:59.000Z

379

Rig 'dzin Tshe dbang mchog grub (1761-1829) et la constitution du rNying ma rgyud 'bum de sDe dge  

E-Print Network (OSTI)

les textes en une collection Ug palung, le fief de la ligne Zur3. Un article plus rcent encore de Mi Nyag Thubbstan chos dar fait le point sur les diverses versions existantes, mentionnantdailleurs un certain nombre dentre elles qui ne sont... and the Bai-ro- rgyud-bum, p. 9. 4 Mi nyag Thub bstan chos dar, rNying ma rgyud 'bum gyi mtshams sbyor, passim. 5 Voir Achard, La liste des Tantras du rNying mai rgyud bum selon ldition tablie par Kun mkhyen Jigs med gling pa, Revue d...

Achard, Jean-Luc

2003-01-01T23:59:59.000Z

380

Oblique Aerial & Ground Visible Band & Thermographic Imaging | Open Energy  

Open Energy Info (EERE)

Oblique Aerial & Ground Visible Band & Thermographic Imaging Oblique Aerial & Ground Visible Band & Thermographic Imaging Jump to: navigation, search GEOTHERMAL ENERGYGeothermal Home Exploration Technique: Oblique Aerial & Ground Visible Band & Thermographic Imaging Details Activities (0) Areas (0) Regions (0) NEPA(0) Exploration Technique Information Exploration Group: Remote Sensing Techniques Exploration Sub Group: Passive Sensors Parent Exploration Technique: Passive Sensors Information Provided by Technique Lithology: Stratigraphic/Structural: Hydrological: Thermal: Cost Information Low-End Estimate (USD): 400.0040,000 centUSD 0.4 kUSD 4.0e-4 MUSD 4.0e-7 TUSD / Subject Median Estimate (USD): 450.0045,000 centUSD 0.45 kUSD 4.5e-4 MUSD 4.5e-7 TUSD / Subject High-End Estimate (USD): 6,000.00600,000 centUSD

Note: This page contains sample records for the topic "du lac band" from the National Library of EnergyBeta (NLEBeta).
While these samples are representative of the content of NLEBeta,
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381

ARM - Publications: Science Team Meeting Documents: W-Band ARM Cloud Radar  

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

W-Band ARM Cloud Radar System W-Band ARM Cloud Radar System Mead, James ProSensing Inc. Widener, Kevin Pacific Northwest National Laboratory The W-Band ARM Cloud Radar (WACR) is a dual polarization 95 GHz radar that will be deployed at the SGP CART site in the spring of 2005. The WACR system will be installed in the existing MMCR shelter, and will provide continuous zenith pointing measurements of clouds to compliment measurements provided by MMCR. Built by ProSensing Inc. of Amherst, MA, the WACR system include a high peak power (1.5 kW) EIKA transmitter, low noise receiver, and PC-based digital receiver. In addition to an internal calibration procedure, an electronically controlled deflector plate mounted on the roof of the MMCR shelter will be used to periodically illuminate a

382

Growth of compaction bands: A new deformation mode for porous rock  

SciTech Connect

Compaction bands are thin, tabular zones of grain breakage and reduced porosity that are found in sandstones. These structures may form due to tectonic stresses or as a result of local stresses induced during production of fluids from wells, resulting in barriers to fluid (oil, gas, water) movement in sandstone reservoirs. To gain insight into the formation of compaction bands the authors have produced them in the laboratory. Acoustic emission locations were used to define and track the thickness of compaction bands throughout the stress history during axisymmetric compression experiments. Narrow zones of intense acoustic emission, demarcating the boundaries between the uncompacted and compacted regions were found to develop. Unexpectedly, these boundaries moved at velocities related to the fractional porosity reduction across the boundary and to the imposed specimen compression stress. This appears to be a previously unrecognized, fundamental mode of deformation of a porous, granular material subjected to compressive loading with significant implications for the production of hydrocarbons.

OLSSON,WILLIAM A.; HOLCOMB,DAVID J.

2000-03-14T23:59:59.000Z

383

Band offsets in ZrO{sub 2}/InGaZnO{sub 4} heterojunction  

SciTech Connect

X-ray photoelectron spectroscopy was used to measure the energy discontinuity in the valence band ( White-Up-Pointing-Triangle E{sub V}) of amorphous InGaZnO{sub 4} (a-IGZO)/ZrO{sub 2} heterostructure deposited by DC and RF sputtering at room temperature, respectively. A value of White-Up-Pointing-Triangle E{sub V}= 0 eV was obtained by using the Ga and Zn 2p{sup 3} and In 3d{sup 3} energy levels as references. Given the experimental band gap of 3.1 eV and 5.8 eV for the a-IGZO and ZrO{sub 2}, respectively, this would indicate a conduction band offset of 2.7 eV in the system.

Yao Jianke [School of Computer and Information Engineering, Shenzhen Graduate School, Peking University, Shenzhen 518055 (China); Zhang Shengdong [School of Computer and Information Engineering, Shenzhen Graduate School, Peking University, Shenzhen 518055 (China); Institute of Microelectronics, Peking University, Beijing 100871 (China); Gong Li [Instrumental Analysis and Research Center, Sun Yat-Sen University, Guangzhou 510275 (China)

2012-08-27T23:59:59.000Z

384

Band offsets in HfO{sub 2}/InGaZnO{sub 4} heterojunctions  

SciTech Connect

The valence band discontinuity ({Delta}E{sub V}) of sputter deposited HfO{sub 2}/InZnGaO{sub 4} (IGZO) heterostructures was obtained from x-ray photoelectron spectroscopy measurements. The HfO{sub 2} exhibited a bandgap of 6.07 eV from absorption measurements. A value of {Delta}E{sub V} = 0.48 {+-} 0.025 eV was obtained by using the Ga 2p{sub 3/2}, Zn 2p{sub 3/2}, and In 3d{sub 5/2} energy levels as references. This implies a conduction band offset {Delta}E{sub C} of 2.39 eV in HfO{sub 2}/InGaZnO{sub 4} heterostructures and a nested interface band alignment.

Cho, Hyun [Department of Nanomechatronics Engineering, Pusan National University, Gyeongnam 627-706 (Korea, Republic of); Douglas, E. A.; Gila, B. P.; Craciun, V.; Lambers, E. S.; Pearton, S. J. [Department of Materials Science and Engineering, University of Florida, Gainesville, Florida 32611 (United States); Ren Fan [Department of Chemical Engineering, University of Florida, Gainesville, Florida 32611 (United States)

2012-01-02T23:59:59.000Z

385

Method of manufacturing flexible metallic photonic band gap structures, and structures resulting therefrom  

DOE Patents (OSTI)

A method of manufacturing a flexible metallic photonic band gap structure operable in the infrared region, comprises the steps of spinning on a first layer of dielectric on a GaAs substrate, imidizing this first layer of dielectric, forming a first metal pattern on this first layer of dielectric, spinning on and imidizing a second layer of dielectric, and then removing the GaAs substrate. This method results in a flexible metallic photonic band gap structure operable with various filter characteristics in the infrared region. This method may be used to construct multi-layer flexible metallic photonic band gap structures. Metal grid defects and dielectric separation layer thicknesses are adjusted to control filter parameters.

Gupta, Sandhya (Bloomington, MN); Tuttle, Gary L. (Ames, IA); Sigalas, Mihail (Ames, IA); McCalmont, Jonathan S. (Ames, IA); Ho, Kai-Ming (Ames, IA)

2001-08-14T23:59:59.000Z

386

Lac qui Parle County, Minnesota: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

0562676°, -96.2006981° 0562676°, -96.2006981° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":45.0562676,"lon":-96.2006981,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

387

Lac La Belle, Wisconsin: Energy Resources | Open Energy Information  

Open Energy Info (EERE)

Belle, Wisconsin: Energy Resources Belle, Wisconsin: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 43.1441716°, -88.5306554° Loading map... {"minzoom":false,"mappingservice":"googlemaps3","type":"ROADMAP","zoom":14,"types":["ROADMAP","SATELLITE","HYBRID","TERRAIN"],"geoservice":"google","maxzoom":false,"width":"600px","height":"350px","centre":false,"title":"","label":"","icon":"","visitedicon":"","lines":[],"polygons":[],"circles":[],"rectangles":[],"copycoords":false,"static":false,"wmsoverlay":"","layers":[],"controls":["pan","zoom","type","scale","streetview"],"zoomstyle":"DEFAULT","typestyle":"DEFAULT","autoinfowindows":false,"kml":[],"gkml":[],"fusiontables":[],"resizable":false,"tilt":0,"kmlrezoom":false,"poi":true,"imageoverlays":[],"markercluster":false,"searchmarkers":"","locations":[{"text":"","title":"","link":null,"lat":43.1441716,"lon":-88.5306554,"alt":0,"address":"","icon":"","group":"","inlineLabel":"","visitedicon":""}]}

388

LAC Regional Platform Workshop Insurance & Visas | Open Energy...  

Open Energy Info (EERE)

Kenya Kirguizistn Kosovo Kuwait Lesotho Liberia * Lybia Lebanon Madagascar Malaysia Malawi Mali Morocco Mauritania Moldavia Mongolia Mozambique Namibia Nepal Nicaragua...

389

Wind Resource Assessment Report: Mille Lacs Indian Reservation...  

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

under direction of the U.S. Environmental Protection Agency (EPA) by the National Renewable Energy Laboratory (NREL) under Interagency Agreement IAG-08-1719 and Task No....

390

Band Formation in a Molecular Quantum Well via 2D Superatom Orbital Interactions  

SciTech Connect

By scanning tunneling microscopy and spectroscopy, we study nearly free electron band formation of the ?*lowest unoccupied molecular orbital of C?F? on a Cu(111) surface. In fractal islands, the lowest unoccupied molecular orbital energy systematically stabilizes with the number of interacting near-neighbor C?F? molecules. Density functional theory calculations reveal the origin of effective intermo- lecular orbital overlap in the previously unrecognized superatom character of the ?*orbital of ?F? molecules. The discovery of superatom orbitals in planar molecules offers a new universal principle for effective band formation, which can be exploited in designing organic semiconductors with nearly free electron properties

Dougherty, D. B.; Feng, Min; Petek, Hrvoje; Yates, John T.; Zhao, Jin

2012-12-28T23:59:59.000Z

391

Simulation of an Electrostatic Energy Harvester at Large Amplitude Narrow and Wide Band Vibrations  

E-Print Network (OSTI)

An electrostatic in-plane overlap varying energy harvester is modeled and simulated using a circuit simulator. Both linear and nonlinear models are investigated. The nonlinear model includes mechanical stoppers at the displacement extremes. Large amplitude excitation signals, both narrow and wide band, are used to emulate environmental vibrations. Nonlinear behavior is significant at large displacement due to the impact on mechanical stoppers. For a sinusoidal excitation the mechanical stoppers cause the output power to flatten and weakly decrease. For a wide band excitation, the output power first increases linearly with the power spectral density of the input signal, then grows slower than linearly.

Tvedt, Lars Geir Whist; Halvorsen, Einar

2008-01-01T23:59:59.000Z

392

RF design of X-band RF deflector for femtosecond diagnostics of LCLS electron beam  

Science Conference Proceedings (OSTI)

We designed a successful constant impedance traveling wave X-band rf deflector for electron beam diagnostics at the 14 GeV SLAC Linac Coherent Light Source (LCLS). This is the first practical deflector built with a waveguide coupler. The 1-meter rf deflector produces 24 MeV peak transverse kick when powered with 20 MW of 11.424 GHz rf. The design is based on our experience with high gradient X-band accelerating structures. Several deflectors of this design have been built at SLAC and are currently in use. Here we describe the design and distinguishing features of this device.

Dolgashev, Valery A.; Wang Juwen [SLAC National Accelerator Laboratory, Menlo Park, CA, 94025 (United States)

2012-12-21T23:59:59.000Z

393

DEPENDENCE OF BAND GAP ON DEPOSITION PARAMETERS IN CdSe SINTERED FILMS  

E-Print Network (OSTI)

II-VI semiconductors form an important class of opto-electronic materials. CdSe is a promising material for the fabrication of photovoltaic devices. Polycrystalline CdSe films have been deposited onto ultra clean glass substrates by sintering process. The optical band gap of these films was determined by reflectance measurements in wavelength range 400-850 nm. The band gap of these films was observed to increase with increase in sintering temperature and sintering time separately. The crystal structure and lattice parameter of these films were determined from x-ray diffractograms. The films were polycrystalline in nature having cubic zinc blende structure.

unknown authors

2008-01-01T23:59:59.000Z

394

The Distin Family and its Influence on the Development of the Brass Band Movement in Nineteenth-Century Britain.  

E-Print Network (OSTI)

??This dissertation examines the influence of the Distin Family brass ensemble on the developing brass band movement in nineteenth-century Britain. As well as drawing critically (more)

FARR, RAYMOND,KENNETH

2012-01-01T23:59:59.000Z

395

Mobile and Personal Communications in the 60 GHz Band: A Survey  

Science Conference Proceedings (OSTI)

This paper intends to present a summary of the technical issues arising in the exploitation of the 60 GHz mm-wave band for mobile and personal communications. The most significant applications proposed so far are surveyed, with particular emphasis ... Keywords: 60 GHz communications, millimeter-wave communications, mobile radio communications, radio propagation

Filippo Giannetti; Marco Luise; Ruggero Reggiannini

1999-07-01T23:59:59.000Z

396

Achieving Accurate Altimetry across Storms: Improved Wind and Wave Estimates from C Band  

Science Conference Proceedings (OSTI)

Atmospheric liquid water, occurring both as cloud and rain, is known to severely affect the performance of normal Ku-band altimeters. Examination of a series of waveforms as Topex transits a major typhoon is used to illustrate the problem and ...

Graham Quartly

1997-06-01T23:59:59.000Z

397

Striping in the Suomi NPP VIIRS Thermal Bands through Anisotropic Surface Reflection  

Science Conference Proceedings (OSTI)

We have analyzed the Visible Infrared Imaging Radiometer Suite (VIIRS) thermal emissive band (TEB) M12 images centered at 3.7 ?m and found an unexpected striping. The striping was seen from ascending orbit (day time) over uniform oceans and has a ...

Quanhua Liu; Changyong Cao; Fuzhong Weng

398

In-band spectrum sensing in cognitive radio networks: energy detection or feature detection?  

Science Conference Proceedings (OSTI)

In a cognitive radio network (CRN), in-band spectrum sensing is essential for the protection of legacy spectrum users, with which the presence of primary users (PUs) can be detected promptly, allowing secondary users (SUs) to vacate the channels immediately. ... Keywords: energy and feature detection, sensing scheduling, sensor clustering, spectrum sensing and opportunity

Hyoil Kim; Kang G. Shin

2008-09-01T23:59:59.000Z

399

Amplitude and phase modulation (AM?PM) wide?band photothermal spectrometry. I. Theory  

Science Conference Proceedings (OSTI)

Amplitude and phase modulation (AM?PM) wide?band photothermal spectrometry is a new technique of excitation and signal recovery with extensive applications in thermal?wave imaging using linear photoacoustic and photothermal techniques. The excitation waveform consists of the superposition of two orthogonal amplitude?modulated frequency sweeps

J. F. Power

1990-01-01T23:59:59.000Z

400

Extracting Rainfall Rates from X-band CDR Radar Data by Using Differential Propagation Phase Shift  

Science Conference Proceedings (OSTI)

In this paper, the method of using differential propagation phase shift ?? to measure rain rate R from X-band circular depolarization ratio (CDR) radar data is presented. The principle of this method is based on the fact that there is a ...

J. Tan; D. H. O. Bebbington; A. R. Holt; A. Hendry

1991-12-01T23:59:59.000Z

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


401

Atmospheric Opacity. in the Schumann-Runge Bands and the Aeronomic Dissociation of Water Vapor  

Science Conference Proceedings (OSTI)

Knowledge of the agronomic production of odd hydrogen in the dissociation of water vapor is limited by uncertainties in the penetration of solar irradiance in the Schumann-Rung bands of O2 and by incomplete information concerning the products of ...

J. E. Frederick; R. D. Hudson

1980-05-01T23:59:59.000Z

402

Tracing Medical Images Using Multi-Band Watermarks Mingyan Li, Sreeram Narayanan and Radha Poovendran  

E-Print Network (OSTI)

1 of 4 Tracing Medical Images Using Multi-Band Watermarks Mingyan Li, Sreeram Narayanan and Radha identify that there is a gap between current security solutions for the privacy protection of medical who distribute medical images illegally. We evaluate the suitability of some most widely used

Poovendran, Radha

403

Radiative Cooling Calculated by Random Band Models with S-1-? Tailed Distribution  

Science Conference Proceedings (OSTI)

Random band models with S-l-u tailed distribution for line intensity are proposed for both the Lorentz lineprofile and an approximate Voigt line profile suggested by Zhu. Such a distribution for the weak line intensityis more realistic than a ...

Xun Zhu

1989-02-01T23:59:59.000Z

404

V-band Transmission and Reflection Grid Amplifier Packaged in Waveguide  

E-Print Network (OSTI)

for thermal management by allowing the heat sink to be mounted on one side of the grid array. It also reduces and cooling fan were used to remove heat from the chip. The temperature distribution across the grid aperture1 V-band Transmission and Reflection Grid Amplifier Packaged in Waveguide Chun-Tung Cheung1 , Roger

Rutledge, David B.

405

Underwater temporary threshold shift induced by octave-band noise in three species of pinniped  

E-Print Network (OSTI)

Underwater temporary threshold shift induced by octave-band noise in three species of pinniped at center frequency . Each subject was trained to dive into a noise field and remain stationed underwater airborne. When human divers were tested underwater, for instance, the resultant levels of TTS were much

Reichmuth, Colleen

406

RDMA read based rendezvous protocol for MPI over InfiniBand: design alternatives and benefits  

Science Conference Proceedings (OSTI)

Message Passing Interface (MPI) is a popular parallel programming model for scientific applications. Most high-performance MPI implementations use Rendezvous Protocol for efficient transfer of large messages. This protocol can be designed using either ... Keywords: InfiniBand, MPI, communication overlap

Sayantan Sur; Hyun-Wook Jin; Lei Chai; Dhabaleswar K. Panda

2006-03-01T23:59:59.000Z

407

PHYSICAL PROPERTIES OF METALS AND NON-MAGNETIC ALLOYS --The band theory approach for actinides (*)  

E-Print Network (OSTI)

.05 eV changes in the dispersion of the band structure. Figure 3 shows the Kubic harmonic decomposition with scale at left) and L = 4 (chain-dot) and L = 6 (chain-dash) Kubic harmonic components (scale at right

Paris-Sud XI, Université de

408

The Extraction of the Thermal Emission Band of Methane from the Longwave Spectrum of the Atmosphere  

Science Conference Proceedings (OSTI)

The thermal emission band at 1306 cm?1 of atmospheric methane, an important greenhouse gas, is presented for a cold, clear day in January 1994. A spectrum of the nonmethane emission features has been simulated using the FASCD3P radiation code and ...

W. F. J. Evans; E. Puckrin

1995-12-01T23:59:59.000Z

409

Performance Comparison of MPI Implementations over InfiniBand, Myrinet and Quadrics  

Science Conference Proceedings (OSTI)

In this paper, we present a comprehensive performance comparison of MPI implementations over Infini-Band, Myrinet and Quadrics. Our performance evaluation consists of two major parts. The first part consists of a set of MPI level micro-benchmarks that ...

Jiuxing Liu; Balasubramanian Chandrasekaran; Jiesheng Wu; Weihang Jiang; Sushmitha Kini; Weikuan Yu; Darius Buntinas; Peter Wyckoff; D K. Panda

2003-11-01T23:59:59.000Z

410

A Simulation and Diagnostic Study of Water Vapor Image Dry Bands  

Science Conference Proceedings (OSTI)

A Limited Area Mesoscale Prediction System (LAMPS) model simulation and special 3-hour radiosonde dataset are used to investigate warm (dry) bands in 6,7 ?m water vapor satellite imagery on 67 March 1982. The purpose is to reveal processes ...

Bradley M. Muller; Henry E. Fuelberg

1990-03-01T23:59:59.000Z

411

Sea Ice Identification and Derivation of Its Velocity Field by X-Band Doppler Radar  

Science Conference Proceedings (OSTI)

In this study a 3D scanning X-band Doppler radar (XDR) was deployed near the coast of the Sea of Okhotsk, Hokkaido, Japan, in November 2005 to simultaneously observe sea ice and snow clouds. Doppler radars are commonly used to detect wind fields ...

Yasushi Fujiyoshi; Koji Osumi; Masayuki Ohi; Yoshinori Yamada

2013-06-01T23:59:59.000Z

412

Solar DEM Model Proposal : A solar image in color band b, mn pixels,  

E-Print Network (OSTI)

Solar DEM Model Proposal : A solar image in color band b, m?n pixels, containing a particular solar 11 )( #12;Solar DEM Model Proposal : the volume (abundance?) of ion ii : the proportion of the total volume at temperature t t T t bitt I i ib MIE 11 )( #12;Solar Dataset · 15 Filters.txt files

Wolfe, Patrick J.

413

Observation of Band Alignment Transition in InAs/GaAsSb Quantum Dots by Photoluminescence  

Science Conference Proceedings (OSTI)

The band alignment of InAs quantum dots (QDs) embedded in GaAsSb barriers with various Sb compositions is investigated by photoluminescence (PL) measurements. InAs/GaAsSb samples with 13% and 15% Sb compositions show distinct differences in emission spectra as the PL excitation power increases. Whilst no discernible shift is seen for the 13% sample, a blue-shift of PL spectra following a 1/3 exponent of the excitation power is observed for the 15% sample suggesting a transition from a type I to type II band alignment. Time-resolved PL data show a significant increase in carrier lifetime as the Sb composition increases between 13% and 15% implying that the transformation from a type I to type II band alignment occurs between 13% and 15% Sb compositions. These results taken together lead to the conclusion that a zero valence band offset (VBO) can be achieved for the InAs/GaAsSb system in the vicinity of 14% Sb composition.

Ban, K. Y.; Kuciauskas, D.; Bremner, S. P.; Honsberg, C. B.

2012-05-15T23:59:59.000Z

414

G-Band Vapor Radiometer Precipitable Water Vapor (GVRPWV) Value-Added Product  

SciTech Connect

The G-Band Vapor Radiometer Precipitable Water Vapor (GVRPWV) value-added product (VAP) computes precipitable water vapor using neural network techniques from data measured by the GVR. The GVR reports time-series measurements of brightness temperatures for four channels located at 183.3 1, 3, 7, and 14 GHz.

Koontz, A; Cadeddu, M

2012-12-05T23:59:59.000Z

415

A Mobile Rapid-Scanning X-band Polarimetric (RaXPol) Doppler Radar System  

Science Conference Proceedings (OSTI)

A novel, rapid-scanning, X-band (3-cm wavelength), polarimetric (RaXPol), mobile radar was developed for severe-weather research. The radar employs a 2.4-m-diameter dual-polarized parabolic dish antenna on a high-speed pedestal capable of rotating ...

Andrew L. Pazmany; James B. Mead; Howard B. Bluestein; Jeffrey C. Snyder; Jana B. Houser

2013-07-01T23:59:59.000Z

416

Efficient and truly passive MPI-3 RMA using InfiniBand atomics  

Science Conference Proceedings (OSTI)

Multi/many-core architectures offer high compute density on modern supercomputing clusters. It is critical for applications to minimize communication and synchronization overheads to achieve peak performance. MPI offers one-sided communication semantics ... Keywords: InfiniBand, MPI-3, RDMA, RMA, latency hiding, one-sided

M. Li, S. Potluri, K. Hamidouche, J. Jose, D. K. Panda

2013-09-01T23:59:59.000Z

417

OUTFLOWS AND DARK BANDS AT ARCADE-LIKE ACTIVE REGION CORE BOUNDARIES  

SciTech Connect

Observations from the EUV Imaging Spectrometer (EIS) on board Hinode have revealed outflows and non-thermal line broadening in low intensity regions at the edges of active regions (ARs). We use data from Hinode's EIS, Solar Dynamic Observatory's Atmospheric Imaging Assembly and Helioseismic and Magnetic Imager, and the Transition Region and Coronal Explorer instrument to investigate the boundaries of arcade-like AR cores for NOAA ARs 11112, 10978, and 9077. A narrow, low intensity region that is observed at the core's periphery as a dark band shows outflows and increased spectral line broadening. This dark band is found to exist for days and appears between the bright coronal loop structures of different coronal topologies. We find a case where the dark band region is formed between the magnetic field from emerging flux and the field of the pre-existing flux. A magnetic field extrapolation indicates that this dark band is coincident with the spine lines or magnetic separatrices in the extrapolated field. This occurs over unipolar regions where the brightened coronal field is separated in connectivity and topology. This separation does not appear to be infinitesimal and an initial estimate of the minimum distance of separation is found to be Almost-Equal-To 1.5-3.5 Mm.

Scott, J. T.; Martens, P. C. H.; Tarr, L. [Department of Physics, Montana State University, Bozeman, MT 59717 (United States)

2013-03-10T23:59:59.000Z

418

Dual-band pixelless upconversion imaging devices Hui Lian Hao,1  

E-Print Network (OSTI)

-band detector inte- grated with a GaN/AlGaN violet light emitting diode. On the basis of the photoresponseAs/AlGaAs quantum well infrared photodetector (QWIP) and an InGaAs/GaAs near-infrared (NIR) light emitting diode

Matsik, Steven G.

419

Mobile, Phased-Array, Doppler Radar Observations of Tornadoes at X Band  

Science Conference Proceedings (OSTI)

A mobile, phased-array Doppler radar, the Mobile Weather Radar, 2005 X-band, Phased Array (MWR-05XP), has been used since 2007 to obtain data in supercells and tornadoes. Rapidly-updating, volumetric data of tornadic vortex signatures (TVSs) ...

Michael M. French; Howard B. Bluestein; Ivan PopStefanija; Chad A. Baldi; Robert T. Bluth

420

In-Place Estimation of Wet Radome Attenuation at X Band  

Science Conference Proceedings (OSTI)

The effect of wet radome attenuation is estimated on a French operational X-band weather radar deployed in the Maritime Alps of southeastern France. As the radar is deployed in a remote location, the reflectivity factor in the immediate vicinity ...

Stephen J. Frasier; Fadela Kabeche; Jordi Figueras i Ventura; Hassan Al-Sakka; Pierre Tabary; Jeffrey Beck; Olivier Bousquet

2013-05-01T23:59:59.000Z

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


421

Airborne Measurements of Air Mass from O2 A-Band Absorption Spectra  

Science Conference Proceedings (OSTI)

Airborne experiments to assess the feasibility of remote sensing surface pressure from a space platform are described. The data are high-resolution spectra in the O2 A band (759771 nm) of sunlight reflected from the sea surface, measured by a ...

D. M. OBrien; R. M. Mitchell; S. A. English; G. A. Da Costa

1998-12-01T23:59:59.000Z

422

Evidence of Ascent in a Sloped Barrier Jet and an Associated Heavy-Snow Band  

Science Conference Proceedings (OSTI)

Doppler radar data are used to identify alongstream slope of a barrier jet running parallel to the cast slope of the Front Range of the Colorado Rockies. The barrier jet was collocated with a narrow band of heavy snow embedded within a larger ...

Lawrence B. Dunn

1992-06-01T23:59:59.000Z

423

Synchronous Ultra-Wide Band Wireless Sensors Networks for oil and gas exploration  

E-Print Network (OSTI)

Synchronous Ultra-Wide Band Wireless Sensors Networks for oil and gas exploration Stefano Savazzi1 of new oil and gas reservoir. Seismic exploration requires a large number (500 ÷ 2000 nodes, MAC and network layer to develop wireless sensors networks tailored for oil (and gas) exploration

Savazzi, Stefano

424

A Compact X-Band Linac for an X-Ray FEL  

SciTech Connect

With the growing demand for FEL light sources, cost issues are being reevaluated. To make the machines more compact, higher frequency room temperature linacs are being considered, specifically ones using C-band (5.7 GHz) rf technology, for which 40 MV/m gradients are achievable. In this paper, we show that an X-band (11.4 GHz) linac using the technology developed for NLC/GLC can provide an even lower cost solution. In particular, stable operation is possible at gradients of 100 MV/m for single bunch operation and 70 MV/m for multibunch operation. The concern, of course, is whether the stronger wakefields will lead to unacceptable emittance dilution. However, we show that the small emittances produced in a 250 MeV, low bunch charge, LCLS-like S-band injector and bunch compressor can be preserved in a multi-GeV X-band linac with reasonable alignment tolerances. The successful lasing and operation of the LCLS [1] has generated world-wide interest in X-ray FELs. The demand for access to such a light source by researchers eager to harness the capabilities of this new tool far exceeds the numbers that can be accommodated, spurring plans for additional facilities. Along with cost, spatial considerations become increasingly important for a hard X-ray machine driven by a multi-GeV linac. The consequent need for high acceleration gradient focuses attention on higher frequency normal conducting accelerator technology, rather than the superconducting technology of a soft X-ray facility like FLASH. C-band technology, such as used by Spring-8, is a popular option, capable of providing 40 MV/m. However, more than a decade of R&D toward an X-band linear collider, centered at SLAC and KEK, has demonstrated that this frequency option can extend the gradient reach to the 70-100 MV/m range. The following design and beam dynamics calculations show an X-band linac to be an attractive choice on which to base an X-ray FEL.

Adolphsen, Chris; Huang, Zhirong; Bane, Karl L.F.; Li, Zenghai; Zhou, Feng; Wang, Faya; Nantista, Christopher D.; /SLAC

2011-09-12T23:59:59.000Z

425

Beam Dynamics Study of X-Band Linac Driven X-Ray FELS  

Science Conference Proceedings (OSTI)

Several linac driven X-ray Free Electron Lasers (XFELs) are being developed to provide high brightness photon beams with very short, tunable wavelengths. In this paper, three XFEL configurations are proposed that achieve LCLS-like performance using X-band linac drivers. These linacs are more versatile, efficient and compact than ones using S-band or C-band rf technology. For each of the designs, the overall accelerator layout and the shaping of the bunch longitudinal phase space are described briefly. During the last 40 years, the photon wavelengths from linac driven FELs have been pushed shorter by increasing the electron beam energy and adopting shorter period undulators. Recently, the wavelengths have reached the X-ray range, with FLASH (Free-Electron Laser in Hamburg) and LCLS (Linac Coherent Light Source) successfully providing users with soft and hard X-rays, respectively. FLASH uses a 1.2 GeV L-band (1.3 GHz) superconducting linac driver and can deliver 10-70 fs FWHM long photon pulses in a wavelength range of 44 nm to 4.1 nm. LCLS uses the last third of the SLAC 3 km S-band (2.856 GHz) normal-conducting linac to produce 3.5 GeV to 15 GeV bunches to generate soft and hard X-rays with good spatial coherence at wavelengths from 2.2 nm to 0.12 nm. Newer XFELs (at Spring8 and PSI) use C-band (5.7 GHz) normal-conducting linac drivers, which can sustain higher acceleration gradients, and hence shorten the linac length, and are more efficient at converting rf energy to bunch energy. The X-band (11.4 GHz) rf technology developed for NLC/GLC offers even higher gradients and efficiencies, and the shorter rf wavelength allows more versatility in longitudinal bunch phase space compression and manipulation. In the following sections, three different configurations of X-band linac driven XFELs are described that operate from 6 to 14 GeV. The first (LOW CHARGE DESIGN) has an electron bunch charge of only 10 pC; the second (OPTICS LINEARIZATION DESIGN) is based on optics linearization of the longitudinal phase space in the first stage bunch compressor and can operate with either a high (250 pC) or low (20 pC) bunch charge; and the third (LCLS INJECTOR DESIGN) is similar to LCLS but uses an X-band linac after the first stage bunch compressor at 250 MeV to achieve a final beam energy up to 14 GeV. Compared with LCLS, these X-band linacs are at least a factor of three shorter.

Adolphsen, C.; Limborg-Deprey, C.; Raubenheimer, T.O.; Wu, J.; /SLAC; Sun, Y.; /SLAC

2011-12-13T23:59:59.000Z

426

Alan Band  

Science Conference Proceedings (OSTI)

... and private industry as a design engineer, engineering technician and ... Klouda, SH Pheiffer, Journal of Radioanalytical and Nuclear Chemistry 276 ...

2010-11-23T23:59:59.000Z

427

The Development of Layered Photonic Band Gap Structures Using a Micro-Transfer Molding Technique  

SciTech Connect

Photonic band gap (PBG) crystals are periodic dielectric structures that manipulate electromagnetic radiation in a manner similar to semiconductor devices manipulating electrons. Whereas a semiconductor material exhibits an electronic band gap in which electrons cannot exist, similarly, a photonic crystal containing a photonic band gap does not allow the propagation of specific frequencies of electromagnetic radiation. This phenomenon results from the destructive Bragg diffraction interference that a wave propagating at a specific frequency will experience because of the periodic change in dielectric permitivity. This gives rise to a variety of optical applications for improving the efficiency and effectiveness of opto-electronic devices. These applications are reviewed later. Several methods are currently used to fabricate photonic crystals, which are also discussed in detail. This research involves a layer-by-layer micro-transfer molding ({mu}TM) and stacking method to create three-dimensional FCC structures of epoxy or titania. The structures, once reduced significantly in size can be infiltrated with an organic gain media and stacked on a semiconductor to improve the efficiency of an electronically pumped light-emitting diode. Photonic band gap structures have been proven to effectively create a band gap for certain frequencies of electro-magnetic radiation in the microwave and near-infrared ranges. The objective of this research project was originally two-fold: to fabricate a three dimensional (3-D) structure of a size scaled to prohibit electromagnetic propagation within the visible wavelength range, and then to characterize that structure using laser dye emission spectra. As a master mold has not yet been developed for the micro transfer molding technique in the visible range, the research was limited to scaling down the length scale as much as possible with the current available technology and characterizing these structures with other methods.

Kevin Jerome Sutherland

2001-05-01T23:59:59.000Z

428

Derivry-Plard, M. (2006). Les enseignants natifs et non-natifs de langue(s) : catgorisation linguistique ou construction sociale ? , Travaux de didactique du FLE, n 55, 2006 : 100-108.  

E-Print Network (OSTI)

langue(s) : catégorisation linguistique ou construction sociale ? », Travaux de langue(s) : catégorisation linguistique ou construction sociale ? Martine Derivry-Plard La linguistique schèmes de perception du champ linguistique, opposant de façon irréductible au sein de chaque langue le

429

Modlisation et valuation du comportement dynamique d'une structure de machine outil UGV pour la prdiction des dfauts gomtriques  

E-Print Network (OSTI)

To achieve better performances in term of productivity, High Speed Machining centers have increasing kinematical characteristics. High accelerations caused by the trajectory execution dynamically load mechanical structure, axes and joints. Such deformations of mechanical components a ect the actual position of the tool in the machining frame. Hence, these gemetrical deviations make the machined geometry of the part vary from the expected one. Within the context of managing the HSM process, this study develops a framework and choice of nite element model to evaluate the structure dynamical behavior of a HSM center. Based on the proposed model, a calculation method is detailed to evaluate the geometrical deviations induced by the trajectory execution. The presented works can thus be used as a tool for the structure design of machine, the adjustment and the optimization of kinematical parameters for machining. --- Pour atteindre des performances accrues en terme de productivit\\'e, les centres d'Usinage Grande Vitesse poss\\`edent des caract\\'eristiques cin\\'ematiques \\'elev\\'ees. Les fortes acc\\'el\\'erations mises en jeu lors de l'ex\\'ecution des trajectoires sollicitent dynamiquement la structure et les liaisons. Les d\\'eformations engendr\\'ees peuvent alors se r\\'epercuter sur la position effective de l'outil par rapport \\`a la pi\\`ece cr\\'eant des \\'ecarts g\\'eom\\'etriques par rapport \\`a la g\\'eom\\'etrie attendue. Dans un contexte de ma\\^itrise du processus de r\\'ealisation de pi\\`eces en UGV, les travaux d\\'evelopp\\'es pr\\'esentent une d\\'emarche et un choix de mod\\'elisation \\'el\\'ements finis pour \\'evaluer le comportement dynamique d'une structure de centre UGV. Bas\\'e sur ce mod\\`ele, une m\\'ethodologie de calcul est propos\\'ee pour \\'evaluer les \\'ecarts g\\'eom\\'etriques g\\'en\\'er\\'es lors de l'ex\\'ecution de trajectoires types. Ces travaux constituent ainsi une voie pour le dimensionnement de structure, le r\\'eglage et l'optimisation des param\\`etres cin\\'ematiques pour l'usinage.

David Prvost; Sylvain Lavernhe; Franois Louf; Philippe Rouch

2011-11-03T23:59:59.000Z

430

CX-001634: Categorical Exclusion Determination | Department of Energy  

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

4: Categorical Exclusion Determination 4: Categorical Exclusion Determination CX-001634: Categorical Exclusion Determination Meteorological Tower Installation Mille Lacs Band of Ojibwa Indian Reservation CX(s) Applied: B3.1, A9 Date: 04/08/2010 Location(s): County of Mille Lacs, Minnesota Office(s): Energy Efficiency and Renewable Energy, Golden Field Office This project is for the commissioning of a meteorological (met) tower to be installed at the Ledin Site, located on the west side of Lake Mille Lacs on the Mille Lacs Band of Ojibwa Indian Reservation, City of Onamia, Township of Kathio, County of Mille Lacs, State of Minnesota. The site is to the west of the Mille Lacs wastewater treatment facility, which has a physical address of 43282 Timber Trail Rd, Onamia, MN 56359. The Ledin Site is a

431

Roles of nanoclusters in shear banding and plastic deformation of bulk metallic glasses  

Science Conference Proceedings (OSTI)

During the course of this research we published 33 papers in various physics/material journals. We select four representing papers in this report and their results are summarized as follows. I. To study shear banding process, it is pertinent to know the intrinsic shear strain rate within a propagating shear band. To this aim, we used nanoindentation technique to probe the mechanical response of a Au49Ag5.5Pd2.3Cu26.9Si16.3 bulk metallic glass in locality and found notable pop-in events associated with shear band emission. Using a free volume model and under the situation when temperature and stress/hardness are fixed result in an equation, which predicts that hardness serration caused by pop-in decreases exponentially with the strain rate. Our data are in good agreement with the prediction. The result also predicts that, when strain rate is higher than a critical strain rate of 1700 s^-1, there will be no hardness serration, thereby no pop-in. In other words, multiple shear bandings will take place and material will flow homogeneously. The critical strain rate of 1700 s^-1 can be treated as the intrinsic strain rate within a shear band. We subsequently carried out a simulation study and showed that, if the imposed strain rate was over , the shear band spacing would become so small that the entire sample would virtually behave like one major shear band. Using the datum strain rate =1700 s^-1 and based on a shear band nucleation model proposed by us, the size of a shear-band nucleus in Au-BMG was estimated to be 3 ???? 10^6 atoms, or a sphere of ~30 nm in diameter. II. Inspired by the peculiar result published in a Science article ?¢????Super Plastic Bulk Metallic Glasses at Room Temperature?¢???, we synthesized the Zr-based bulk metallic glass with a composition identical to that in the paper (Zr64.13Cu15.75Ni10.12Al10) and, subsequently, tested in compression at the same slow strain rate (~10^-4 s^-1). We found that the dominant deformation mode is always single shear. The stress-strain curve exhibited serrated pattern in the plastic region, which conventionally has been attributed to individual shear band propagation. The scanning electron micrographs taken from the deformed sample surface revealed regularly spaced striations. Analysis indicates that the observed stress-strain serrations are intimately related to the striations on the shear surface, suggesting the serrations were actually caused slip-and-stick shear along the principal shear plane. We further use video camera to conduct in situ compression experiments to unambiguously confirm the one-to-one temporal and spatial correspondence between the intermittent sliding and flow serration. This preferential shear band formation along the principal shear plane is, in fact, a natural consequence of Mode II crack, independent of strain softening or hardening, usually claimed in the literature. III. Flow serration in compression of metallic glasses is caused by the formation and propagation of localized shear bands. These shear bands propagate at an extremely high speed, so high that a load cell and load frame were unable to capture the details of the dynamic event. To subdue this problem, we conducted uniaxial compression on Zr64.13Cu15.75Ni10.12Al10 bulk metallic glass using a high-speed camera to capture the sample image and also high-sensitivity strain gauges attached to the test samples to directly measure the strain. The displacement-time curves obtained from the test and a magnified version of the displacement burst reveals clearly a three-step (acceleration, steady-state, and deceleration) process during shear band propagation. The fastest propagating speed occurring at the steady state is calculated as 8????10^2 ???µm/s. This speed is about 1,000 times faster than the crosshead speed. This explains the gradual disappearance of flow serration at higher strain rates previously reported during compression of

Nieh, T.G.

2012-07-31T23:59:59.000Z

432

Roles of nanoclusters in shear banding and plastic deformation of bulk metallic glasses  

SciTech Connect

During the course of this research we published 33 papers in various physics/material journals. We select four representing papers in this report and their results are summarized as follows. I. To study shear banding process, it is pertinent to know the intrinsic shear strain rate within a propagating shear band. To this aim, we used nanoindentation technique to probe the mechanical response of a Au49Ag5.5Pd2.3Cu26.9Si16.3 bulk metallic glass in locality and found notable pop-in events associated with shear band emission. Using a free volume model and under the situation when temperature and stress/hardness are fixed result in an equation, which predicts that hardness serration caused by pop-in decreases exponentially with the strain rate. Our data are in good agreement with the prediction. The result also predicts that, when strain rate is higher than a critical strain rate of 1700 s^-1, there will be no hardness serration, thereby no pop-in. In other words, multiple shear bandings will take place and material will flow homogeneously. The critical strain rate of 1700 s^-1 can be treated as the intrinsic strain rate within a shear band. We subsequently carried out a simulation study and showed that, if the imposed strain rate was over , the shear band spacing would become so small that the entire sample would virtually behave like one major shear band. Using the datum strain rate =1700 s^-1 and based on a shear band nucleation model proposed by us, the size of a shear-band nucleus in Au-BMG was estimated to be 3 ???? 10^6 atoms, or a sphere of ~30 nm in diameter. II. Inspired by the peculiar result published in a Science article ?¢????Super Plastic Bulk Metallic Glasses at Room Temperature?¢???, we synthesized the Zr-based bulk metallic glass with a composition identical to that in the paper (Zr64.13Cu15.75Ni10.12Al10) and, subsequently, tested in compression at the same slow strain rate (~10^-4 s^-1). We found that the dominant deformation mode is always single shear. The stress-strain curve exhibited serrated pattern in the plastic region, which conventionally has been attributed to individual shear band propagation. The scanning electron micrographs taken from the deformed sample surface revealed regularly spaced striations. Analysis indicates that the observed stress-strain serrations are intimately related to the striations on the shear surface, suggesting the serrations were actually caused slip-and-stick shear along the principal shear plane. We further use video camera to conduct in situ compression experiments to unambiguously confirm the one-to-one temporal and spatial correspondence between the intermittent sliding and flow serration. This preferential shear band formation along the principal shear plane is, in fact, a natural consequence of Mode II crack, independent of strain softening or hardening, usually claimed in the literature. III. Flow serration in compression of metallic glasses is caused by the formation and propagation of localized shear bands. These shear bands propagate at an extremely high speed, so high that a load cell and load frame were unable to capture the details of the dynamic event. To subdue this problem, we conducted uniaxial compression on Zr64.13Cu15.75Ni10.12Al10 bulk metallic glass using a high-speed camera to capture the sample image and also high-sensitivity strain gauges attached to the test samples to directly measure the strain. The displacement-time curves obtained from the test and a magnified version of the displacement burst reveals clearly a three-step (acceleration, steady-state, and deceleration) process during shear band propagation. The fastest propagating speed occurring at the steady state is calculated as 8????10^2 ???µm/s. This speed is about 1,000 times faster than the crosshead speed. This explains the gradual disappearance of flow serration at higher strain rates previously reported during compression of

Nieh, T.G.

2012-07-31T23:59:59.000Z

433

High-performance and scalable MPI over InfiniBand with reduced memory usage: an in-depth performance analysis  

Science Conference Proceedings (OSTI)

InfiniBand is an emerging HPC interconnect being deployed in very large scale clusters, with even larger InfiniBand-based clusters expected to be deployed in the near future. The Message Passing Interface (MPI) is the programming model of choice for ...

Sayantan Sur; Matthew J. Koop; Dhabaleswar K. Panda

2006-11-01T23:59:59.000Z

434

P and n-type microcrystalline semiconductor alloy material including band gap widening elements, devices utilizing same  

DOE Patents (OSTI)

An n-type microcrystalline semiconductor alloy material including a band gap widening element; a method of fabricating p-type microcrystalline semiconductor alloy material including a band gap widening element; and electronic and photovoltaic devices incorporating said n-type and p-type materials.

Guha, Subhendu (Troy, MI); Ovshinsky, Stanford R. (Bloomfield Hills, MI)

1988-10-04T23:59:59.000Z

435

Diagnosing Coupled Jet-Streak Circulations for a Northern Plains Snow Band from the Operational Nested-Grid Model  

Science Conference Proceedings (OSTI)

On 17 March 1989, moderate to heavy snow developed in a 100- to 200-km-wide band extending from South Dakota to northern Michigan. The 4- to 8-inch snowfall within this band was not associated with major cyclogenesis, and developed 500 to 600 km ...

Gregory J. Hakim; Louis W. Uccellini

1992-03-01T23:59:59.000Z

436

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

Science Conference Proceedings (OSTI)

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

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

2011-08-15T23:59:59.000Z

437

Ocean Aerosols: The Marine Fast-Rotating Shadow-Band Radiometer Network  

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

Ocean Aerosols: The Marine Fast-Rotating Ocean Aerosols: The Marine Fast-Rotating Shadow-Band Radiometer Network M. A. Miller, R. M. Reynolds, and J. J. Bartholomew Brookhaven National Laboratory Upton, New York Introduction A network of ship-mounted marine fast-rotating shadow-band radiometers (FRSRs) and broadband radiometers have been deployed over the fast four years on several backbone ships, funded jointly by Atmospheric Radiation Measurement (ARM) and National Aeronautic and Space Administration's (NASA's) Sensor Intercomparison and Merger for Biological and Interdisciplinary Studies (SIMBIOS). These radiometers operate continuously and automatically during daylight hours. There fundamental measurements made by the FRSRs in the network are the direct-normal irradiance

438

RESEARCH AND DEVELOPMENT FOR AN X-BAND LINEAR COLLIDER* C. Adolphsen  

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

AND DEVELOPMENT FOR AN AND DEVELOPMENT FOR AN X-BAND LINEAR COLLIDER* C. Adolphsen Stanford Linear Accelerator Center, Stanford University, Stanford CA 94309 USA Abstract At SLAC and KEK research is advancing toward a design for an electron-positron linear collider based on X-Band (11.4 GHz) rf accelerator technology. The nominal acceleration gradient in its main linacs will be about four times that in the Stanford Linear Collider (SLC). The design targets a 1.0 TeV center-of-mass energy but envisions initial operation at 0.5 TeV and allows for expansion to 1.5 TeV. A 10 34 cm -2 s -1 luminosity level will be achieved by colliding multiple bunches per pulse with bunch emittances about two orders of magnitude smaller than those in the SLC. The key components needed to realize such a collider are

439

z'-BAND GROUND-BASED DETECTION OF THE SECONDARY ECLIPSE OF WASP-19b  

Science Conference Proceedings (OSTI)

We present the ground-based detection of the secondary eclipse of the transiting exoplanet WASP-19b. The observations were made in the Sloan z' band using the ULTRACAM triple-beam CCD camera mounted on the New Technology Telescope. The measurement shows a 0.088% {+-} 0.019% eclipse depth, matching previous predictions based on H- and K-band measurements. We discuss in detail our approach to the removal of errors arising due to systematics in the data set, in addition to fitting a model transit to our data. This fit returns an eclipse center, T{sub 0}, of 2455578.7676 HJD, consistent with a circular orbit. Our measurement of the secondary eclipse depth is also compared to model atmospheres of WASP-19b and is found to be consistent with previous measurements at longer wavelengths for the model atmospheres we investigated.

Burton, J. R.; Watson, C. A.; Pollacco, D. [Astrophysics Research Centre, Queen's University Belfast, Belfast BT7 1NN (United Kingdom); Littlefair, S. P.; Dhillon, V. S. [Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH (United Kingdom); Gibson, N. P. [Department of Physics, University of Oxford, Oxford OX1 3RH (United Kingdom); Marsh, T. R., E-mail: jburton04@qub.ac.uk [Department of Physics and Astronomy, University of Warwick, Coventry CV4 7AL (United Kingdom)

2012-08-01T23:59:59.000Z

440

Microstructural evolution in adiabatic shear bands of copper at high strain rates: Electron backscatter diffraction characterization  

SciTech Connect

The microstructural evolution of adiabatic shear bands in annealed copper with different large strains at high strain rates has been investigated by electron backscatter diffraction. The results show that mechanical twinning can occur with minimal contribution to shear localization under dynamic loading. Elongated ultrafine grains with widths of 100-300 nm are observed during the evolution of the adiabatic shear bands. A rotational dynamic recrystallization mechanism is proposed to explain the formation of the elongated ultrafine grains. - Highlights: Black-Right-Pointing-Pointer The microstructural evolution of ASB is studied by electron backscatter diffraction. Black-Right-Pointing-Pointer Twinning can occur in ASB while the contribution to shear localization is slight. Black-Right-Pointing-Pointer Elongated ultrafine grains are observed during the evolution process of ASB. Black-Right-Pointing-Pointer A possible mechanism is proposed to explain the microstructure evolution of ASB.

Tang Lin [School of Materials Science and Engineering, Central South University, Changsha 410083 (China); Chen Zhiyong, E-mail: czysh@netease.com [School of Materials Science and Engineering, Central South University, Changsha 410083 (China); Zhan Congkun; Yang Xuyue; Liu Chuming [School of Materials Science and Engineering, Central South University, Changsha 410083 (China); Cai Hongnian [School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081 (China)

2012-02-15T23:59:59.000Z

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


441

COO-3072-119 RESULTS ON THE PERFORMANCE OF A BROAD BAND FOCUSSING CHERENKOV COUNTER*  

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

3072-119 3072-119 ^ RESULTS ON THE PERFORMANCE OF A BROAD BAND FOCUSSING CHERENKOV COUNTER* Sherman,"'"'' R. C. W e b b , ' ' ' " ' ' " ' " M. ^.otov-~ S C i i v ^ ^ - - ^ - ^ Cester, V. L. Fitch, A. Montag, S. Sherman, R. C. Webb, M. S. Witherell Department of Physics, Princeton University, Princeton, N. J. 085A4 Abstract The field of ring imaging (broad band differential) Cherenkov detectors-^ has become a very active area of interest in detector development at several high energy physics laboratories. Our group has previously report- ed2 on a method of Cherenkov ring imaging for a counter with large momentum and angular acceptance using stan- dard photo multipliers. Recently, we have applied this technique to the design of a set of Cherenkov counters

442

Ultraviolet - "Green" Energy in the "C" Band  

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

Ultraviolet - "Green" Energy in the "C" Band Ultraviolet - "Green" Energy in the "C" Band Speaker(s): Forrest Fencl Date: April 16, 2009 - 12:00pm Location: 90-3122 Mr. Forrest Fencl of UV Resources, Inc. will discuss how air conditioning system operation, maintenance, and utilization influence system cooling capacity and indoor air quality. The use of ultraviolet germicidal radiation to clean heat exchangers and maintain their efficiency will be reviewed and energy savings estimates will be provided. Additionally, he will discuss why UV-C is considered the "green" cleaner and how widely it is used today as an engineering strategy for precluding the growth, dissemination and recirculation of microbial contaminants. For more information about this seminar, please contact: Bill Fisk(510) 486-591

443

Chiral bands for quasi-proton and quasi-neutron coupling with a triaxial rotor  

E-Print Network (OSTI)

A particle rotor model (PRM) with a quasi-proton and a quasi-neutron coupled with a triaxial rotor is developed and applied to study chiral doublet bands with configurations of a $h_{11/2}$ proton and a $h_{11/2}$ quasi-neutron. With pairing treated by the BCS approximation, the present quasi-particle PRM is aimed at simulating one proton and many neutron holes coupled with a triaxial rotor. After a detailed analysis of the angular momentum orientations, energy separation between the partner bands, and behavior of electromagnetic transitions, for the first time we find aplanar rotation or equivalently chiral geometry beyond the usual one proton and one neutron hole coupled with a triaxial rotor.

S. Q. Zhang; B. Qi; S. Y. Wang; J. Meng

2007-03-15T23:59:59.000Z

444

Support pedestals for interconnecting a cover and nozzle band wall in a gas turbine nozzle segment  

DOE Patents (OSTI)

A gas turbine nozzle segment has outer and inner band portions. Each band portion includes a nozzle wall, a cover and an impingement plate between the cover and nozzle wall defining two cavities on opposite sides of the impingement plate. Cooling steam is supplied to one cavity for flow through the apertures of the impingement plate to cool the nozzle wall. Structural pedestals interconnect the cover and nozzle wall and pass through holes in the impingement plate to reduce localized stress otherwise resulting from a difference in pressure within the chamber of the nozzle segment and the hot gas path and the fixed turbine casing surrounding the nozzle stage. The pedestals may be cast or welded to the cover and nozzle wall.

Yu, Yufeng Phillip (Simpsonville, SC); Itzel, Gary Michael (Simpsonville, SC); Webbon, Waylon Willard (Greenville, SC); Bagepalli, Radhakrishna (Schenectady, NY); Burdgick, Steven Sebastian (Schenectady, NY); Kellock, Iain Robertson (Simpsonville, SC)

2002-01-01T23:59:59.000Z

445

Ce-doped EuO: Magnetic properties and the indirect band gap  

Science Conference Proceedings (OSTI)

We have prepared and investigated thin films of EuO doped with the rare-earth element cerium. X-ray diffraction, scanning electron microscopy, and energy dispersive x-ray spectroscopy were used to determine the quality of these films prepared by pulsed laser deposition. Ce doping leads to an enhanced Curie temperature near 150 K, close to that seen for oxygen-deficient EuO{sub 1-x}. However, the magnetization of Ce-doped EuO exhibits differences from that observed for Gd-doped and oxygen-deficient samples. The high-resolution angular-resolved photoemission from Ce-doped EuO reveals filling of conduction-band states near the X point. This indicates that the band gap in EuO is indirect, and that at 2% doping Ce-doped EuO{sub 1-x} is at least semimetallic.

Liu Pan; Tang Jinke [Department of Physics and Astronomy, University of Wyoming, Laramie, Wyoming 82071 (United States); Colon Santana, Juan A.; Belashchenko, Kirill D.; Dowben, Peter A. [Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0299 (United States)

2011-04-01T23:59:59.000Z

446

Periodic dielectric structure for production of photonic band gap and method for fabricating the same  

DOE Patents (OSTI)

A method is disclosed for fabricating a periodic dielectric structure which exhibits a photonic band gap. Alignment holes are formed in a wafer of dielectric material having a given crystal orientation. A planar layer of elongate rods is then formed in a section of the wafer. The formation of the rods includes the step of selectively removing the dielectric material of the wafer between the rods. The formation of alignment holes and layers of elongate rods and wafers is then repeated to form a plurality of patterned wafers. A stack of patterned wafers is then formed by rotating each successive wafer with respect to the next-previous wafer, and then placing the successive wafer on the stack. This stacking results in a stack of patterned wafers having a four-layer periodicity exhibiting a photonic band gap. 42 figures.

Ozbay, E.; Tuttle, G.; Michel, E.; Ho, K.M.; Biswas, R.; Chan, C.T.; Soukoulis, C.

1995-04-11T23:59:59.000Z

447

Importance of non-parabolic band effects in the thermoelectric properties of semiconductors  

SciTech Connect

We present an analysis of the thermoelectric properties of of n-type GeTe and SnTe in relation to the lead chalcogenides PbTe and PbSe. We find that the singly degenerate conduction bands of semiconducting GeTe and SnTe are highly non-parabolic, even very close to the band edges. This leads to isoenergy surfaces with a strongly corrugated shape that is clearly evident at carrier concentrations well below 0.005 e per formula unit. Analysis within Boltzmann theory shows that this corrugation is favorable for the thermoelectric transport. As a result these materials may exhibit n-type performance exceeding that of the lead chalcogenides.

Singh, David J [ORNL] [ORNL; Parker, David S [ORNL] [ORNL; Chen, Xin [ORNL] [ORNL

2013-01-01T23:59:59.000Z

448

On the band-to-continuum intensity ratio in the infrared spectra of interstellar carbonaceous dust  

E-Print Network (OSTI)

Published interpretations of the relative intensity variations of the Unidentified Infrared Bands (UIBs) and their underlying continuum are discussed. An alternative model is proposed, in which a single carrier for both emits a) mostly a continuum when it is electronically excited by photons (visible or UV), or b) exclusively the UIBs, when only chemical energy is deposited by H capture on its surface, inducing only nuclear vibrations. The bands will dominate in atomic H regions but will be overcome by thermal continuum radiation when the ambient field is strong but lacks dissociating photons (900-1100 Angstroms). The model applies to PDRs as well as to limbs of molecular clouds in the ISM and agrees quantitatively with recent satellite observations. It gives indications on atomic H density and UIB intensity provided the ambient radiation field is known. It invokes no chemical, electronic, structural or size change in order to interpret the observed intensity variations.

Renaud Papoular

2004-03-24T23:59:59.000Z

449

Fabrication of Ceramic Layer-by-Layer Infrared Wavelength Photonic Band Gap Crystals  

SciTech Connect

Photonic band gap (PBG) crystals, also known as photonic crystals, are periodic dielectric structures which form a photonic band gap that prohibit the propagation of electromagnetic (EM) waves of certain frequencies at any incident angles. Photonic crystals have several potential applications including zero-threshold semiconductor lasers, the inhibition of spontaneous emission, dielectric mirrors, and wavelength filters. If defect states are introduced in the crystals, light can be guided from one location to another or even a sharp bending of light in micron scale can be achieved. This generates the potential for optical waveguide and optical circuits, which will contribute to the improvement in the fiber-optic communications and the development of high-speed computers.

Henry Hao-Chuan Kang

2004-12-19T23:59:59.000Z

450

Using Measurements of Fill Factor at High Irradiance to Deduce Heterobarrier Band Offsets: Preprint  

DOE Green Energy (OSTI)

Using a 2D device simulation tool, we examine the high irradiance behavior of a single junction, GaAs concentrator cell as a function of the doping in the back surface confinement layer. The confinement layer is designed to be a barrier for both holes and electrons in the base of the solar cell. For a p-type base we show that the FF of the cell at high concentrations is a strong function of both the magnitude of the valence band offset and the doping level in the barrier. In short, for a given valence band offset (VBO), there is a critical barrier doping, below which the FF drops rapidly with lower doping. This behavior is confirmed experimentally for a GaInP/GaAs double heterostructure solar cell where the critical doping concentration (at 500 suns) in the back surface confinement layer is ~1e18 cm-3 for a VBO of 300 meV.

Olson, J. M.; Steiner, M. A.; Kanevce, A.

2011-07-01T23:59:59.000Z

451

Periodic dielectric structure for production of photonic band gap and method for fabricating the same  

DOE Patents (OSTI)

A method for fabricating a periodic dielectric structure which exhibits a photonic band gap. Alignment holes are formed in a wafer of dielectric material having a given crystal orientation. A planar layer of elongate rods is then formed in a section of the wafer. The formation of the rods includes the step of selectively removing the dielectric material of the wafer between the rods. The formation of alignment holes and layers of elongate rods and wafers is then repeated to form a plurality of patterned wafers. A stack of patterned wafers is then formed by rotating each successive wafer with respect to the next-previous wafer, and then placing the successive wafer on the stack. This stacking results in a stack of patterned wafers having a four-layer periodicity exhibiting a photonic band gap.

Ozbay, Ekmel (Ames, IA); Tuttle, Gary (Ames, IA); Michel, Erick (Ames, IA); Ho, Kai-Ming (Ames, IA); Biswas, Rana (Ames, IA); Chan, Che-Ting (Ames, IA); Soukoulis, Costas (Ames, IA)

1995-01-01T23:59:59.000Z

452

Miniaturized Multi-Band Antenna Design via Element Collocation and Inductive Feed Loading  

SciTech Connect

In a FY09 SDRD project, four separate antennas were designed to receive signals of interest covering a broad range of frequencies. While the elements exceeded specifications, the array footprint is substantial. Research performed by the CU Microwave Active Antenna Group in collaboration with RSL, showed promise in realizing a reduced structure. This work will expand upon this previous research. This project will result in a prototype quad-band antenna.

Martin, R. P.

2012-09-12T23:59:59.000Z

453

Wide-band quantum interface for visible-to-telecommunication wavelength conversion  

E-Print Network (OSTI)

We perform the first demonstration of a quantum interface for frequency down-conversion from visible to telecommunication bands by using a nonlinear crystal. This interface has a potential to work over wide bandwidths, leading to a high-speed interface of frequency conversion. We achieve the conversion of a pico-second visible photon at 780 nm to a 1522-nm photon, and observe that the conversion process retain entanglement between the down-converted photon and another photon.

Rikizo Ikuta; Yoshiaki Kusaka; Tsuyoshi Kitano; Hiroshi Kato; Takashi Yamamoto; Masato Koashi; Nobuyuki Imoto

2011-06-09T23:59:59.000Z

454

WATER-AMMONIUM ICES AND THE ELUSIVE 6.85 {mu}m BAND  

Science Conference Proceedings (OSTI)

The 6.85 {mu}m band observed in the spectra of young stellar objects has been analyzed recently and the most usually accepted assignment to the nu{sub 4} bending mode of NH{sub 4} {sup +} is still under debate. We present here a laboratory study of frozen solutions of NH{sub 4} {sup +}Cl{sup -} in water in an astrophysical range of concentrations and temperatures. The samples are prepared by hyper-quenching of liquid droplets on a cold substrate. The nu{sub 4} band of NH{sub 4} {sup +}, which is very strong in the pure crystal and in the liquid solution at ambient temperature, becomes almost blurred in IR spectra of the frozen solution. The effect of the chlorine anion is expected to be of little relevance in this study. The experimental results are supported by theoretical calculations, which predict a broad range of weak nu{sub 4} features for amorphous samples containing different ammonium environments. The present results indicate that the ammonium ion surrounded by water molecules only cannot suffice to explain this spectral feature. This paper contributes with new evidence to the discussion on the assignment of the 6.85 {mu}m band.

Mate, B.; Galvez, O.; Herrero, V. J.; Fernandez-Torre, D.; Moreno, M. A.; Escribano, R. [Instituto de Estructura de la Materia, CSIC, Serrano 123, 28006 Madrid (Spain)

2009-10-01T23:59:59.000Z

455

EXAMINING THE BROADBAND EMISSION SPECTRUM OF WASP-19b: A NEW z-BAND ECLIPSE DETECTION  

SciTech Connect

WASP-19b is one of the most irradiated hot-Jupiters known. Its secondary eclipse is the deepest of all transiting planets and has been measured in multiple optical and infrared bands. We obtained a z-band eclipse observation with a measured depth of 0.080% {+-} 0.029%, using the 2 m Faulkes Telescope South, which is consistent with the results of previous observations. We combined our measurement of the z-band eclipse with previous observations to explore atmosphere models of WASP-19b that are consistent with its broadband spectrum. We use the VSTAR radiative transfer code to examine the effect of varying pressure-temperature profiles and C/O abundance ratios on the emission spectrum of the planet. We find that models with super-solar carbon enrichment best match the observations, which is consistent with previous model retrieval studies. We also include upper atmosphere haze as another dimension in the interpretation of exoplanet emission spectra and find that particles <0.5 {mu}m in size are unlikely to be present in WASP-19b.

Zhou, George; Bayliss, Daniel D. R. [Research School of Astronomy and Astrophysics, Australian National University, Cotter Rd, Weston Creek, ACT 2611 (Australia); Kedziora-Chudczer, Lucyna; Bailey, Jeremy, E-mail: george@mso.anu.edu.au [School of Physics, University of New South Wales, Sydney, NSW 2052 (Australia)

2013-09-10T23:59:59.000Z

456

Photonic band gaps in one-dimensional magnetized plasma photonic crystals with arbitrary magnetic declination  

Science Conference Proceedings (OSTI)

In this paper, the properties of photonic band gaps and dispersion relations of one-dimensional magnetized plasma photonic crystals composed of dielectric and magnetized plasma layers with arbitrary magnetic declination are theoretically investigated for TM polarized wave based on transfer matrix method. As TM wave propagates in one-dimensional magnetized plasma photonic crystals, the electromagnetic wave can be divided into two modes due to the influence of Lorentz force. The equations for effective dielectric functions of such two modes are theoretically deduced, and the transfer matrix equation and dispersion relations for TM wave are calculated. The influences of relative dielectric constant, plasma collision frequency, incidence angle, plasma filling factor, the angle between external magnetic field and +z axis, external magnetic field and plasma frequency on transmission, and dispersion relation are investigated, respectively, and some corresponding physical explanations are also given. From the numerical results, it has been shown that plasma collision frequency cannot change the locations of photonic band gaps for both modes, and also does not affect the reflection and transmission magnitudes. The characteristics of photonic band gaps for both modes can be obviously tuned by relative dielectric constant, incidence angle, plasma filling factor, the angle between external magnetic field and +z axis, external magnetic field and plasma frequency, respectively. These results would provide theoretical instructions for designing filters, microcavities, and fibers, etc.

Zhang Haifeng [College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 (China); Nanjing Artillery Academy, Nanjing 211132 (China); Liu Shaobin [College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 (China); State Key Laboratory of Millimeter Waves of Southeast University, Nanjing Jiangsu 210096 (China); Kong Xiangkun [College of Electronic and Information Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016 (China)

2012-12-15T23:59:59.000Z

457

FERROELECTRIC SWITCH FOR A HIGH-POWER Ka-BAND ACTIVE PULSE COMPRESSOR  

Science Conference Proceedings (OSTI)

Results are presented for design of a high-power microwave switch for operation at 34.3 GHz, intended for use in an active RF pulse compressor. The active element in the switch is a ring of ferroelectric material, whose dielectric constant can be rapidly changed by application of a high-voltage pulse. As envisioned, two of these switches would be built into a pair of delay lines, as in SLED-II at SLAC, so as to allow 30-MW ?s-length Ka-band pulses to be compressed in time by a factor-of-9 and multiplied in amplitude to generate 200 MW peak power pulses. Such high-power pulses could be used for testing and evaluation of high-gradient mm-wave accelerator structures, for example. Evaluation of the switch design was carried out with an X-band (11.43 GHz) prototype, built to incorporate all the features required for the Ka-band version.

Hirshfield, Jay L. [Omega-P, Inc.

2013-12-18T23:59:59.000Z

458

Les Cahiers du GERAD  

E-Print Network (OSTI)

includes pipeline inventory costs, cycle inventory costs, and safety stock ..... a neighborhood of length ? (initially set to 1) and (ii) from this perturbed point, finding...

459

Principal Component Image Analysis of MODIS for Volcanic Ash. Part I: Most Important Bands and Implications for Future GOES Imagers  

Science Conference Proceedings (OSTI)

In Part I of this paper, the infrared bands of the Moderate Resolution Imaging Spectroradiometer (MODIS) are analyzed for volcanic ash signals using principal component image analysis. Target volcanoes included Popocatepetl volcano near Mexico ...

Donald W. Hillger; James D. Clark

2002-10-01T23:59:59.000Z

460

Detection of Cloud-Top Height from Backscattered Radiances within the Oxygen A Band. Part 1: Theoretical Study  

Science Conference Proceedings (OSTI)

A series of radiative transfer calculations were performed to study the possibility of determining cloud-top pressure (height) from backscattered solar radiances within the oxygen A-band absorption. For the development of a cloud-top pressure ...

J. Fischer; H. Grassl

1991-09-01T23:59:59.000Z

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


461

Apparatus and methods for relieving thermally induced stresses in inner and outer bands of thermally cooled turbine nozzle stages  

DOE Patents (OSTI)

To control the temperature mismatch between the inner and outer bands and covers forming plenums with the inner and outer bands on sides thereof remote from the hot gas path, passages extend from the leading edge of the covers in communication with the hot gases of combustion to the trailing edge of the covers in communication with the hot gas flowpath. A mixing chamber is provided in each passage in communication with compressor discharge air for mixing the hot gases of combustion and compressor discharge air for flow through the passage, thereby heating the cover and minimizing the temperature differential between the inner and outer bands and their respective covers. The passages are particularly useful adjacent the welded or brazed joints between the covers and inner band portions.

Yu, Yufeng Phillip (Guilderland, NY); Itzel, Gary Michael (Clifton Park, NY); Correia, Victor H. S. (Milton Mills, NH)

2002-01-01T23:59:59.000Z

462

Biasing of the Covariance-Based Spectral Mean Estimator in the Presence of Band-Limited Noise  

Science Conference Proceedings (OSTI)

Estimation of spectral mean frequency (spectral first moment) by the variance technique is considered for a signal process contaminated by band limited, additive noise. It is shown that the covariance-based spectral mean estimator is biased for ...

Albert J. Plueddemann; Robert Pinkel

1991-02-01T23:59:59.000Z

463

Analysis of the Relationship between Banded Orographic Convection and Atmospheric Properties Using Factorial Discriminant Analysis and Neural Networks  

Science Conference Proceedings (OSTI)

The relationship between banded orographic convection and atmospheric properties is investigated for a region in the south of France where the associated rainfall events are thought to represent a significant portion of the hydrologic input. The ...

A. Godart; E. Leblois; S. Anquetin; N. Freychet

2010-04-01T23:59:59.000Z

464

Error Estimates for Passive Satellite Measurement of Surface Pressure Using Absorption in the A Band of Oxygen  

Science Conference Proceedings (OSTI)

This paper investigates the feasibility of satellite remote sensing of surface pressure using radiometric measurements in the oxygen A band. It is shown out the primary sources of error are the uncertainties in the temperature profile, the ...

R. M. Mitchell; D. M. O'Brien

1987-08-01T23:59:59.000Z

465

Precipitation Classification and Quantification Using X-band Dual-Polarization Weather Radar: Application in the Hydrometeorology Testbed  

Science Conference Proceedings (OSTI)

This paper presents new methods for rainfall estimation from X-band dual-polarization radar observations along with advanced techniques for quality control, hydrometeor classification, and estimation of specific differential phase. Data collected ...

S. Lim; R. Cifelli; V. Chandrasekar; S. Y. Matrosov

466

Electronic structure of Pt based topological Heusler compounds with C1{sub b} structure and 'zero band gap'  

SciTech Connect

Besides of their well-known wide range of properties it was recently shown that many of the heavy Heusler semiconductors with 1:1:1 composition and C1{sub b} structure exhibit a zero band gap behavior and are topological insulators induced by their inverted band structure. In the present study, the electronic structure of the Heusler compounds PtYSb and PtLaBi was investigated by bulk sensitive hard x-ray photoelectron spectroscopy. The measured valence band spectra are clearly resolved and in well agreement to the first-principles calculations of the electronic structure of the compounds. The experimental results give clear evidence for the zero band gap state.

Ouardi, Siham; Shekhar, Chandra; Fecher, Gerhard H.; Kozina, Xeniya; Stryganyuk, Gregory; Felser, Claudia [Institut fuer Anorganische Chemie und Analytische Chemie, Johannes Gutenberg-Universitaet, D-55099 Mainz (Germany); Ueda, Shigenori; Kobayashi, Keisuke [NIMS Beamline Station at SPring-8, National Institute for Materials Science, Hyogo 679-5148 (Japan)

2011-05-23T23:59:59.000Z

467

Detection of Cloud-Top Height from Backscattered Radiances within the Oxygen A Band. Part 2: Measurements  

Science Conference Proceedings (OSTI)

Cloud-top heights were successfully derived from reflected solar radiation measurements within the oxygen A-band absorption. The accuracy of the estimated cloud-top heights was to within 40 meters over stratus clouds when compared with ...

J. Fischer; W. Cordes; A. Schmitz-Peiffer; W. Renger; P. Mrl

1991-09-01T23:59:59.000Z

468

Molecular Line Absorption in a Scattering Atmosphere. Part II: Application to Remote Sensing in the O2 A band  

Science Conference Proceedings (OSTI)

This paper explores the feasibility of using O2 A-band reflectance spectra in the retrieval of cloud optical and physical properties. Analyses demonstrate that these reflection spectra are sensitive to optical properties of clouds such as optical ...

Andrew K. Heidinger; Graeme L. Stephens

2000-05-01T23:59:59.000Z

469

The use of bulk states to accelerate the band edge state calculation of a semiconductor quantum dot  

E-Print Network (OSTI)

conduction band. For large CdSe quantum dots, the number ofidate our approach on both CdSe bulk systems and colloidala physical point of view, CdSe quantum dots are one of the

Vomel, Christof; Tomov, Stanimire Z.; Wang, Lin-Wang; Marques, Osni A.; Dongarra, Jack J.

2008-01-01T23:59:59.000Z

470

Narrow- and Broad-Band Satellite Measurements of Shortwave Radiation: Conversion Simulations with a General Circulation Model  

Science Conference Proceedings (OSTI)

The Oregon State University/Lawrence Livermore National Laboratory general circulation model has been employed as a vehicle for suggesting and exploring various means of converting narrow-band measurements of reflected solar radiation from the ...

Robert D. Cess; Gerald L. Potter

1986-12-01T23:59:59.000Z

471

Interplay between elastic instabilities and shear-banding: three categories of TaylorCouette flows and beyond  

E-Print Network (OSTI)

In the past twenty years, shear-banding flows have been probed by various techniques, such as rheometry, velocimetry and flow birefringence. In micellar solutions, many of the data collected exhibit unexplained spatiotemporal ...

Fardin, M. A.

472

Observations of Wintertime U.S. West Coast Precipitating Systems with W-Band Satellite Radar and Other Spaceborne Instruments  

Science Conference Proceedings (OSTI)

The potential of CloudSat W-band radar for observing wintertime storms affecting the West Coast of North America is evaluated. Storms having high hydrological impact often result from landfalls of atmospheric rivers (ARs), which are the narrow ...

Sergey Y. Matrosov

2012-02-01T23:59:59.000Z

473

Observations of Ice Crystal Habits with a Scanning Polarimetric W-Band Radar at Slant Linear Depolarization Ratio Mode  

Science Conference Proceedings (OSTI)

Scanning polarimetric W-band radar data were evaluated for the purpose of identifying predominant ice hydrometeor habits. Radar and accompanying cloud microphysical measurements were conducted during the Storm Peak Laboratory Cloud Property ...

Sergey Y. Matrosov; Gerald G. Mace; Roger Marchand; Matthew D. Shupe; Anna G. Hallar; Ian B. McCubbin

2012-08-01T23:59:59.000Z

474

A Robust C-band Hydrometeor Identification Algorithm and Application to a Long Term Polarimetric Radar Data Set  

Science Conference Proceedings (OSTI)

A new ten category, polarimetric-based hydrometeor identification algorithm (HID) for C-band is developed from theoretical scattering simulations including wet snow, hail, and big drops /melting hail. The HID is applied to data from seven monsoon ...

Brenda Dolan; Steven A. Rutledge; S. Lim; V. Chandrasekar; M. Thurai

475

Demonstration of molecular beam epitaxy and a semiconducting band structure for I-Mn-V compounds  

SciTech Connect

Our ab initio theory calculations predict a semiconducting band structure of I-Mn-V compounds. We demonstrate on LiMnAs that high-quality materials with group-I alkali metals in the crystal structure can be grown by molecular beam epitaxy. Optical measurements on the LiMnAs epilayers are consistent with the theoretical electronic structure. Our calculations also reproduce earlier reports of high antiferromagnetic ordering temperature and predict large, spin-orbit-coupling-induced magnetic anisotropy effects. We propose a strategy for employing antiferromagnetic semiconductors in high-temperature semiconductor spintronics.

Jungwirth, T. [Institute of Physics ASCR, v.v.i., Cukrovarnicka 10, 162 53 Praha 6 (Czech Republic); School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD (United Kingdom); Novak, V.; Cukr, M.; Zemek, J. [Institute of Physics ASCR, v.v.i., Cukrovarnicka 10, 162 53 Praha 6 (Czech Republic); Marti, X.; Horodyska, P.; Nemec, P.; Holy, V. [Faculty of Mathematics and Physics, Charles University in Prague, Ke Karlovu 3, 121 16 Prague 2 (Czech Republic); Maca, F.; Shick, A. B.; Masek, J.; Kuzel, P. [Institute of Physics ASCR, v.v.i., Na Slovance 2, 182 21 Praha 8 (Czech Republic); Nemec, I. [Faculty of Science, Charles University in Prague, Hlavova 2030, 128 40 Prague 2 (Czech Republic); Gallagher, B. L.; Campion, R. P.; Foxon, C. T. [School of Physics and Astronomy, University of Nottingham, Nottingham NG7 2RD (United Kingdom); Wunderlich, J. [Institute of Physics ASCR, v.v.i., Cukrovarnicka 10, 162 53 Praha 6 (Czech Republic); Hitachi Cambridge Laboratory, Cambridge CB3 0HE (United Kingdom)

2011-01-15T23:59:59.000Z

476

X-band Scanning ARM Precipitation Radar (X-SAPR) Instrument Handbook  

SciTech Connect

The X-band scanning ARM cloud radar (X-SAPR) is a full-hemispherical scanning polarimetric Doppler radar transmitting simultaneously in both H and V polarizations. With a 200 kW magnetron transmitter, this puts 100 kW of transmitted power for each polarization. The receiver for the X-SAPR is a Vaisala Sigmet RVP-900 operating in a coherent-on-receive mode. Three X-SAPRs are deployed around the Southern Great Plains (SGP) Central Facility in a triangular array. A fourth X-SAPR is deployed near Barrow, Alaska on top of the Barrow Arctic Research Center.

Widener, K; Bharadwaj, N

2012-10-29T23:59:59.000Z

477

Construction of narrow-band regenerative amplifier for momentum imaging spectroscopy of lithium dimer  

Science Conference Proceedings (OSTI)

We constructed a Ti:Sapphire narrow-band regenerative amplifier as the probe laser of the experiment of momentum imaging spectroscopy of lithium dimer. The spectral profile of the regenerative cavity was designed by three birefringent filters and a plate of etalon. With 1.1-mJ pumping by the second harmonics of Nd:YLF laser, mode-locked seed pulses were amplified to {approx}25 {mu}J at 1-kHz repetition, with the bandwidth of {approx}0.7 cm{sup -1}.

Matsuoka, Leo; Hashimoto, Masashi; Yokoyama, Keiichi [Quantum Beam Science Directorate, Japan Atomic Energy Agency, 8-1-7, Umemidai, Kizugawa, Kyoto 619-0215 (Japan)

2012-07-11T23:59:59.000Z

478

Flux quantization for a superconducting ring in the shape of a Mbius band  

E-Print Network (OSTI)

We give two derivations of magnetic flux quantization in a superconducting ring in the shape of a M\\"obius band, one using direct study of the Schr\\"odinger equation and the other using the holonomy of flat U(1)-gauge bundles. Both methods show that the magnetic flux must be quantized in integral or half-integral multiples of $\\Phi_0=hc/(2e)$. Half-integral quantization shows up in "nodal states" whose wavefunction vanishes along the center of the ring, for which there is now some experimental evidence.

Jonathan Rosenberg; Yehoshua Dan Agassi

2013-01-13T23:59:59.000Z

479

Measurement of the surface wavelength distribution of narrow-band radiation by a colorimetric method  

SciTech Connect

A method is suggested for determining the wavelength of narrow-band light from a digital photograph of a radiating surface. The digital camera used should be appropriately calibrated. The accuracy of the wavelength measurement is better than 1 nm. The method was tested on the yellow doublet of mercury spectrum and on the adjacent continuum of the incandescent lamp radiation spectrum. By means of the method suggested the homogeneity of holographic sensor swelling was studied in stationary and transient cases. (laser applications and other topics in quantum electronics)

Kraiskii, A V; Mironova, T V; Sultanov, T T [P N Lebedev Physical Institute, Russian Academy of Sciences, Moscow (Russian Federation)

2010-09-10T23:59:59.000Z

480

Extrapolations of BATSE Gamma-Ray Burst Spectra to the Optical-UV Band  

E-Print Network (OSTI)

Many gamma-ray burst counterpart searches are being conducted in the optical-UV band. To both predict detectability and understand the meaning of any detections or upper limits, we extrapolate gamma-ray spectra from 54 bright gamma-ray bursts to optical-UV energies. We assume optical emission is concurrent with gamma-ray emission and do not consider quiescent or fading counterparts. We find that the spectrum must be steeper (greater flux at low energy) than a simple extrapolation of the gamma-ray spectrum for more than one simultaneous optical flash to be observable per year by current searches.

Lyle Ford; David Band

1996-07-10T23:59:59.000Z

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


481

Analysis of plasma-magnetic photonic crystal with a tunable band gap  

SciTech Connect

In this paper, electromagnetic wave propagation through the one-dimensional plasma-magnetic photonic crystal in the presence of external magnetic field has been analyzed. The dispersion relation, transmission and reflection coefficients have been obtained by using the transfer matrix method. It is investigated how photonic band gap of photonic crystals will be tuned when both dielectric function {epsilon} and magnetic permeability {mu} of the constitutive materials, depend on applied magnetic field. This is shown by one dimensional photonic crystals consisting of plasma and ferrite material layers stacked alternately.

Mehdian, H.; Mohammadzahery, Z.; Hasanbeigi, A. [Department of Physics and Plasma Research Institute of Tarbiat Moallem University, 49 Dr Mofatteh Avenue, Tehran 15614 (Iran, Islamic Republic of)

2013-04-15T23:59:59.000Z

482

Phenomenology Studies Using a Scanning Fully Polarimetric Passive W-Band Millimeter Wave Imager  

SciTech Connect

We present experimental results obtained from a scanning passive W-band fully polarimetric imager. In addition to a conventional approach to polarimetric image analysis in which the Stokes I, Q, U, and V images were formed and displayed, we present an alternative method for polarimetric image exploitation based upon multivariate image analysis (MIA). MIA uses principal component analysis (PCA) and 2D scatter or score plots to identify various pixel classes in the image compared with the more conventional scene-based image analysis approaches. Multivariate image decomposition provides a window into the complementary interplay between spatial and statistical correlations contained in the data.

Bernacki, Bruce E.; Kelly, James F.; Sheen, David M.; McMakin, Douglas L.; Tedeschi, Jonathan R.; Hall, Thomas E.; Hatchell, Brian K.; Valdez, Patrick LJ

2011-05-01T23:59:59.000Z

483

Ultranarrow-Band Photon Pair Source Compatible with Solid State Quantum Memories and Telecommunication Networks  

E-Print Network (OSTI)

We report on a source of ultranarrow-band photon pairs generated by widely nondegenerate cavity-enhanced spontaneous down-conversion. The source is designed to be compatible with Pr3+ solid state quantum memories and telecommunication optical fibers, with signal and idler photons close to 606 nm and 1436 nm, respectively. Both photons have a spectral bandwidth around 2 MHz, matching the bandwidth of Pr3+ doped quantum memories. This source is ideally suited for long distance quantum communication architectures involving solid state quantum memories.

Julia Fekete; Daniel Rielander; Matteo Cristiani; Hugues de Riedmatten

2013-04-25T23:59:59.000Z

484

2003 Kluwer Academic Publishers. Printed in the Netherlands. M-band: a safeguard for sarcomere stability?  

E-Print Network (OSTI)

The sarcomere of striated muscle is a very efficient machine transforming chemical energy into movement. However, a wrong distribution of the generated forces may lead to self-destruction of the engine itself. A well-known example for this is eccentric contraction (elongation of the sarcomere in the activated state), which damages sarcomeric structure and leads to a reduced muscle performance. The goal of this review is to discuss the involvement of different cytoskeletal systems, in particular the M-band filaments, in the mechanisms that provide stability during sarcomeric contraction. The M-band is the transverse structure in the center of the sarcomeric A-band, which is responsible both for the regular packing of thick filaments and for the uniform distribution of the tension over the myosin filament lattice in the activated sarcomere. Although some proteins from the Ig-superfamily, like myomesin and M-protein, are the major candidates for the role of M-band bridges, the exact molecular organisation of the M-band is not clear. However, the protein composition of the M-band seems to modulate the mechanical characteristics of the thick filament lattice, in particular its stiffness, adjusting it to the specific demands in different muscle types. The special M-band design in slow fibers might be part of structural adaptations, favouring sarcomere stability for a continuous contractile activity over a broad working range. In conclusion, we discuss why the interference with M-band structure might have fatal consequences for the integrity of the working sarcomere.

Irina Agarkova; Elisabeth Ehler; Stephan Lange; Roman Schoenauer

2003-01-01T23:59:59.000Z

485

Excitation of Meinel and the first negative band system at the collision of electrons and protons with the nitrogen molecule  

Science Conference Proceedings (OSTI)

The absolute cross sections for the e-N{sub 2} and p-N{sub 2} collisions for the first negative B{sup 2{Sigma}}{sub u}{sup +}-X{sup 2{Sigma}}{sub g}{sup +} and Meinel A{sup 2{Pi}}{sub u}-X{sup 2{Sigma}}{sub g}{sup +} bands have been measured in the energy region of 400-1500 eV for electrons and 0.4-10 keV for protons, respectively. Measurements are performed in the visible spectral region of 400-800 nm by an optical spectroscopy method. The ratio of the cross sections of the Meinel band system to the cross section of the first negative band system (0,0) does not depend on the incident electron energy. The populations of vibrational levels corresponding to A{sup 2{Pi}}{sub u} states are consistent with the Franck-Condon principle. The ratios of the cross sections of (4,1) to (3,0) bands and (5,2) to (3,0) bands exhibit slight dependence on the proton energy. A theoretical estimation within the quasimolecular approximation provides a reasonable description of the total cross section for the first negative band.

Gochitashvili, Malkhaz R.; Lomsadze, Ramaz A. [Physics Department, Tbilisi State University, Tbilisi 380028 (Georgia); Kezerashvili, Roman Ya. [Physics Department, New York City College of Technology, City University of New York, Brooklyn, New York 11201 (United States); Graduate School and University Center, City University of New York, New York, New York 10016 (United States)

2010-08-15T23:59:59.000Z

486

Excitation Dynamics in Low Band Gap Donor-Acceptor Copolymers and Blends  

E-Print Network (OSTI)

Donor-acceptor (D-A) type copolymers show great potential for the application in the active layer of organic solar cells. Nevertheless the nature of the excited states, the coupling mechanism and the relaxation pathways following photoexcitation are yet to be clarified. We carried out comparative measurements of the steady state absorption and photoluminescence (PL) on the copolymer poly[N-(1-octylnonyl)-2,7-carbazole] -alt-5,5-[4',7' -di(thien-2-yl)-2',1',3' -benzothiadiazole] (PCDTBT), its building blocks as well as on the newly synthesized N-(1-octylnonyl)-2,7-bis-[(5-phenyl)thien-2-yl)carbazole (BPT-carbazole) (see Figure 1). The high-energy absorption band (HEB) of PCDTBT was identified with absorption of carbazoles with adjacent thiophene rings while the low-energy band (LEB) originates instead from the charge transfer (CT) state delocalized over the aforementioned unit with adjacent benzothiadiazole group. Photoexcitation of the HEB is followed by internal relaxation prior the radiative decay to the ground state. Adding PC70BM results in the efficient PL quenching within the first 50 ps after excitation. From the PL excitation experiments no evidence for a direct electron transfer from the HEB of PCDTBT towards the fullerene acceptor was found, therefore the internal relaxation mechanisms within PCDTBT can be assumed to precede. Our findings indicate that effective coupling between copolymer building blocks governs the photovoltaic performance of the blends.

Bjrn Gieseking; Berthold Jck; Eduard Preis; Stefan Jung; Michael Forster; Ullrich Scherf; Carsten Deibel; Vladimir Dyakonov

2012-06-20T23:59:59.000Z

487

Valence Band Structure of Highly Efficient p-type Thermoelectric PbTe-PbS Alloys  

Science Conference Proceedings (OSTI)

New experimental evidence is given relevant to the temperature-dependence of valence band structure of PbTe and PbTe1-xSx alloys (0.04 x 0.12), and its effect on the thermoelectric figure of merit zT. The x = 0.08 sample has zT ~ 1.55 at 773K. The magnetic field dependence of the high-temperature Hall resistivity of heavily p-type (> 1019 cm-3) Na-doped PbTe1-xSx reveals the presence of high-mobility electrons. This put in question prior analyses of the Hall coefficient and the conclusion that PbTe would be an indirect gap semiconductor at temperatures where its zT is optimal. Possible origins for these electrons are discussed: they can be induced by photoconductivity, or by the topology of the Fermi surface when the L and -bands merge. Negative values for the low-temperature thermopower are also observed. Our data show that PbTe continues to be a direct gap semiconductor at temperatures where the zT and S2 of p-type PbTe are optimal e.g. 700-900K. The previously suggested temperature induced rapid rise in energy of the heavy hole LVB relative to the light hole UVB is not supported by the experimental data.

Jaworski, C. M. [Ohio State University; Nielsen, Mechele [Ohio State University; Wang, Hsin [ORNL; Girard, Steven N. [Northwestern University, Evanston; Cai, Wei [ORNL; Porter, Wallace D [ORNL; Kanatzidis, Mercouri G. [Northwestern University, Evanston; Heremans, J. P. [Ohio State University

2013-01-01T23:59:59.000Z

488

Sieve-based confidence intervals and bands for L\\'{e}vy densities  

E-Print Network (OSTI)

The estimation of the L\\'{e}vy density, the infinite-dimensional parameter controlling the jump dynamics of a L\\'{e}vy process, is considered here under a discrete-sampling scheme. In this setting, the jumps are latent variables, the statistical properties of which can be assessed when the frequency and time horizon of observations increase to infinity at suitable rates. Nonparametric estimators for the L\\'{e}vy density based on Grenander's method of sieves was proposed in Figueroa-L\\'{o}pez [IMS Lecture Notes 57 (2009) 117--146]. In this paper, central limit theorems for these sieve estimators, both pointwise and uniform on an interval away from the origin, are obtained, leading to pointwise confidence intervals and bands for the L\\'{e}vy density. In the pointwise case, our estimators converge to the L\\'{e}vy density at a rate that is arbitrarily close to the rate of the minimax risk of estimation on smooth L\\'{e}vy densities. In the case of uniform bands and discrete regular sampling, our results are consis...

Figueroa-Lpez, Jos E

2011-01-01T23:59:59.000Z

489

SLAC/CERN High Gradient Tests of An X Band Accelerating Section  

Science Conference Proceedings (OSTI)

High frequency linear collider schemes envisage the use of rather high accelerating gradients: 50 to 100 MV/m for X-band and 80 MV/m for CLIC. Because these gradients are well above those commonly used in accelerators, high gradient studies of high frequency structures have been initiated and test facilities have been constructed at KEK [1], SLAC [2] and CERN [3]. The studies seek to demonstrate that the above mentioned gradients are both achievable and practical. There is no well-defined criterion for the maximum acceptable level of dark current but it must be low enough not to generate unacceptable transverse wakefields, disturb beam position monitor readings or cause RF power losses. Because there are of the order of 10,000 accelerating sections in a high frequency linear collider, the conditioning process should not be too long or difficult. The test facilities have been instrumented to allow investigation of field emission and RF breakdown mechanisms. With an understanding of these effects, the high gradient performance of accelerating sections may be improved through modifications in geometry, fabrication methods and surface finish. These high gradient test facilities also allow the ultimate performance of high frequency/short pulse length accelerating structures to be probed. This report describes the high gradient test at SLAC of an X-band accelerating section built at CERN using technology developed for CLIC.

Loewen, Roderick J

2003-06-13T23:59:59.000Z

490

Hyperspectral remote sensing of plant biochemistry using Bayesian model averaging with variable and band selection  

SciTech Connect

Model specification remains challenging in spectroscopy of plant biochemistry, as exemplified by the availability of various spectral indices or band combinations for estimating the same biochemical. This lack of consensus in model choice across applications argues for a paradigm shift in hyperspectral methods to address model uncertainty and misspecification. We demonstrated one such method using Bayesian model averaging (BMA), which performs variable/band selection and quantifies the relative merits of many candidate models to synthesize a weighted average model with improved predictive performances. The utility of BMA was examined using a portfolio of 27 foliage spectralchemical datasets representing over 80 species across the globe to estimate multiple biochemical properties, including nitrogen, hydrogen, carbon, cellulose, lignin, chlorophyll (a or b), carotenoid, polar and nonpolar extractives, leaf mass per area, and equivalent water thickness. We also compared BMA with partial least squares (PLS) and stepwise multiple regression (SMR). Results showed that all the biochemicals except carotenoid were accurately estimated from hyerspectral data with R2 values > 0.80.

Zhao, Kaiguang; Valle, Denis; Popescu, Sorin; Zhang, Xuesong; Malick, Bani

2013-05-15T23:59:59.000Z

491

Model calculation of N2 Vegard-Kaplan band emissions in Martian dayglow  

E-Print Network (OSTI)

A model for N2 Vegard-Kaplan (VK) band (A^3Sigma_u^+ - X^1Sigma_g^+) emissions in Martian dayglow has been developed to explain the recent observations made by the Spectroscopy for Investigation of Characteristics of the Atmosphere of Mars (SPICAM) ultraviolet spectrograph aboard Mars Express. Steady state photoelectron fluxes and volume excitation rates have been calculated using the analytical yield spectra technique. Since interstate cascading is important for triplet states of N2, the population of any given level of N2 triplet states is calculated under statistical equilibrium considering direct excitation, cascading, and quenching effects. Relative population of all vibrational levels of each triplet state is calculated in the model. Line of sight intensities and height-integrated overhead intensities have been calculated for VK, first positive (B^3Pi_g - A^3Sigma_u^+), second positive (C^3Pi_u - B^3Pi_g), and Wu-Benesch (W^3Delta_u - B^3Pi_g) bands of N2. A reduction in the N2 density by a factor of 3 ...

Jain, Sonal Kumar

2011-01-01T23:59:59.000Z

492

Investigation of the State and Uses of Ultra-Wide-Band Radio-Frequency Identification Technology  

SciTech Connect

Radio-frequency identification (RFID) technology has revolutionized the concept of asset tracking. By affixing an RFID tag to a valued asset, one can track the item throughout any facility where RIFD readers are in place, thereby alerting inspectors to theft, misuse, and misplacement of the tracked item. While not yet implemented for tracking very high value assets, RFID technology is already widely used in many industries as the standard for asset tracking. A subset of RFID technology exists called Ultra-Wide-Band (UWB) RFID. While traditional (sometimes called narrow-band) RFID technology transmits a continuous sine-wave signal of a narrow frequency range, UWB technology works by transmitting signals as short pulses of a broad frequency range. This improves performance in several areas, namely, range, precision, and accuracy of motion detection. Because of the nature of the technology, it also performs well in close proximity to metal, which sets it apart from traditional RFID. The purpose of this paper is to investigate the current state of UWB RFID technology and research the areas where it already is being used. This is accomplished through study of publicly known uses of the technology as well as personal exploration of RFID hardware and software. This paper presents the findings in a general manner to facilitate their usefulness for diverse applications.

Hickerson, Jonathan W [ORNL; Younkin, James R [ORNL

2010-01-01T23:59:59.000Z

493

FABSOAR--A Fabry-Perot Spectrometer for Oxygen A-band Research Final Technical Report  

SciTech Connect

Because this was a Phase I project, it did not add extensively to the body of A-band knowledge. There was no basic research performed on that subject. The principal addition was that a mechanical and optical design for a triple-etalon Fabry-Perot interferometer (FABSOAR) capable of A-band sensing was sketched out and shown to be within readily feasible instrument fabrication parameters. The parameters for the proposed triple-etalon Fabry-Perot were shown to be very similar to existing Fabry-Perots built by Scientific Solutions. The mechanical design for the FABSOAR instrument incorporated the design of previous Scientific Solutions imagers, condensing the three three-inch-diameter etalons into a single, sturdy tube. The design allowed for the inclusion of a commercial off-the-shelf (COTS) filter wheel and a thermocooled CCD detector from Andor. The tube has supports to mount to a horizontal or vertical opticaltable surface, and was to be coupled to a Scientific Solutions pointing head at the Millstone Hill Observatory in Massachusetts for Phase II calibration and testing.

Watchorn, Steven

2010-09-10T23:59:59.000Z

494

Stepped Impedance Resonators in Triple Band Bandpass Filter Design for Wireless Communication Systems  

Science Conference Proceedings (OSTI)

Triple band microstrip tri-section bandpass filter using stepped impedance resonators (SIRs) is designed, simulated, built, and measured using hair pin structure. The complete design procedure is given from analytical stage to implementation stage with details The coupling between SIRs is investigated for the first time in detail by studying their effect on the filter characteristics including bandwidth, and attenuation to optimize the filter perfomance. The simulation of the filler is performed using method of moment based 2.5D planar electromagnetic simulator The filter is then implemented on RO4003 material and measured The simulation, and measured results are compared and found to be my close. The effect of coupling on the filter performance is then investigated using electromagnetic simulator It is shown that the coupling effect between SIRs can be used as a design knob to obtain a bandpass Idler with a better performance jar the desired frequency band using the proposed filter topology The results of this work can used in wireless communication systems where multiple frequency bandy are needed

Eroglu, Abdullah [ORNL

2010-01-01T23:59:59.000Z

495

Band gap enhancement of glancing angle deposited TiO{sub 2} nanowire array  

SciTech Connect

Vertically oriented TiO{sub 2} nanowire (NW) arrays were fabricated by glancing angle deposition technique. Field emission-scanning electron microscopy shows the formation of two different diameters {approx}80 nm and {approx}40 nm TiO{sub 2} NW for 120 and 460 rpm azimuthal rotation of the substrate. The x-ray diffraction and Raman scattering depicted the presence of rutile and anatase phase TiO{sub 2}. The overall Raman scattering intensity decreased with nanowire diameter. The role of phonon confinement in anatase and rutile peaks has been discussed. The red (7.9 cm{sup -1} of anatase E{sub g}) and blue (7.4 cm{sup -1} of rutile E{sub g}, 7.8 cm{sup -1} of rutile A{sub 1g}) shifts of Raman frequencies were observed. UV-vis absorption measurements show the main band absorption at 3.42 eV, 3.48 eV, and {approx}3.51 eV for thin film and NW prepared at 120 and 460 rpm, respectively. Three fold enhance photon absorption and intense light emission were observed for NW assembly. The photoluminescence emission from the NW assembly revealed blue shift in main band transition due to quantum confinement in NW structures.

Chinnamuthu, P.; Mondal, A.; Singh, N. K.; Dhar, J. C. [National Institute of Technology Agartala, Department of Electronics and Communication Engineering, Jirania, Tripura (West) 799055 (India); Chattopadhyay, K. K. [Jadavpur University, Department of Physics, Kolkata 700032 (India); Bhattacharya, Sekhar [SSN Research Centre, Tamil Nadu 603110 (India)

2012-09-01T23:59:59.000Z

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