National Library of Energy BETA

Sample records for room holiday inn

  1. The Committee convened in the Clark Room, Holiday Inn Capitol,

    U.S. Energy Information Administration (EIA) Indexed Site

    MEETING - - - Thursday, April 25, 1996 - - - The Committee convened in the Clark Room, Holiday Inn Capitol, 550 C Street, S.W., Washington, D.C., at 9:00 a.m., Dr. Timothy D. Mount, Chairman, presiding. PRESENT: TIMOTHY D. MOUNT, Chairman SAMPRIT CHATTERJEE BRENDA G. COX JOHN D. GRACE CALVIN KENT GRETA M. LJUNG RICHARD A. LOCKHART DANIEL A. RELLES PRESENT (Continued): BRADLEY O. SKARPNESS G. CAMPBELL WATKINS ALSO PRESENT: RENEE MILLER YVONNE BISHOP MARY HUTZLER JAY HAKES DOUGLAS HALE ART HOLLAND

  2. The Committee convened in the Clark Room of the Holiday Inn

    U.S. Energy Information Administration (EIA) Indexed Site

    - - - - - COMMITTEE ON ENERGY STATISTICS - - - - - MEETING - - - - - FRIDAY, APRIL 26, 1996 The Committee convened in the Clark Room of the Holiday Inn Capitol, 550 C Street, S.W., Washington, D.C., at 9:00 a.m., DR. TIMOTHY D. MOUNT, Chair, presiding. PRESENT: TIMOTHY D. MOUNT, Chair SAMPRIT CHATTERJEE BRENDA G. COX JOHN D. GRACE CALVIN KENT GRETA M. LJUNG RICHARD A. LOCKHART DANIEL A. RELLES BRADLEY O. SKARPNESS G. CAMPBELL WATKINS ALSO PRESENT: RENEE MILLER YVONNE M. BISHOP DIANE LIQUE L.A.

  3. The Committee met in the Columbia Room at the Holiday Inn

    U.S. Energy Information Administration (EIA) Indexed Site

    Friday, April 21, 1995 - - - The Committee met in the Columbia Room at the Holiday Inn Capitol, 550 C Street S.W., Washington, D.C., at 9:00 a.m., Timothy D. Mount, Chairman, presiding. PRESENT: TIMOTHY D. MOUNT, Chair DAVID R. BELLHOUSE CHARLES W. BISCHOFF BRENDA G. COX FAYE DUCHIN JOHN D. GRACE PHILIP HANSWER CALVIN KENT GRETA M. LJUNG JAMES L. O'BRIEN DANIEL A. RELLES BRADLEY O. SKARPNESS G. CAMPBELL WATKINS A-G-E-N-D-A Page No. Introductory Remarks, TIMOTHY MOUNT, Chairman 3 Announcement of

  4. The Committee met in the Clark Room in the Holiday Inn Capitol,

    U.S. Energy Information Administration (EIA) Indexed Site

    - - - COMMITTEE ON ENERGY STATISTICS - - - THURSDAY, APRIL 23, 1998 - - - The Committee met in the Clark Room in the Holiday Inn Capitol, 550 C Street, S.W., Washington, D.C., at 9:00 a.m., Daniel A. Relles, Chair, presiding. PRESENT: DANIEL A. RELLES Chair CHARLES W. BISCHOFF Member CAROL A. GOTWAY CRAWFORD Member PHILIP HANSER Member CALVIN KENT Member GRETA M. LJUNG Member POLLY A. PHIPPS Member SEYMOUR SUDMAN Member ROY W. WHITMORE Member DENNY ELLERMAN Guest JAMES HAMMITT Guest I N D E X

  5. The Committee met in the Clark Room in the Holiday Inn Capitol,

    U.S. Energy Information Administration (EIA) Indexed Site

    FRIDAY APRIL 24, 1998 - - - The Committee met in the Clark Room in the Holiday Inn Capitol, 550 C Street, S.W., Washington, D.C., at 9:00 a.m., Daniel Relles, Chair, presiding. PRESENT: DANIEL RELLES Chair CHARLES BISCHOFF Member CAROL CRAWFORD Member CALVIN KENT Member GRETA M. LJUNG Member POLLY PHIPPS Member SEYMOUR SUDMAN Member ROY WHITMORE Member JAMES HAMMITT Guest I N D E X Page Opening Comments from the Chair 3 Recognizing Previous Judges of the EIA Graphics 4 Contest and Announcing

  6. The Committee met in the Clark Room of the Capitol Holiday Inn,

    U.S. Energy Information Administration (EIA) Indexed Site

    PUBLIC MEETING + + + + + THURSDAY NOVEMBER 13, 1997 + + + + + WASHINGTON, D.C. The Committee met in the Clark Room of the Capitol Holiday Inn, 550 C Street, S.W., at 9:00 a.m., G. Campbell Watkins, Chair, presiding. PRESENT: G. CAMPBELL WATKINS Chair DANIEL A. RELLES Vice Chair DAVID R. BELLHOUSE R. SAMPRIT CHATTERJEE BRENDA G. COX CAROL A. GOTWAY CRAWFORD PHILIP HANSEN CALVIN KENT GRETA M. LJUNG ROY WHITMORE INVITED GUESTS: SEYMOUR SUDMAN RICHARD TABORS EIA STAFF: JAY HAKES EIA Administrator

  7. The Committee met in the Clark Room, Holiday Inn Capitol at 550

    U.S. Energy Information Administration (EIA) Indexed Site

    PUBLIC MEETING + + + THURSDAY, APRIL 10, 1997 + + + The Committee met in the Clark Room, Holiday Inn Capitol at 550 C Street, S.W., Washington, D.C., at 9:00 a.m., G. Campbell Watkins, Chairman, presiding. PRESENT: G. CAMPBELL WATKINS, Chairman DAVID R. BELLHOUSE CHARLES W. BISCHOFF BRENDA G. COX CAROL A. GOTWAY CRAWFORD CALVIN KENT GRETA M. LJUNG DANIEL A. RELLES BRADLEY O. SKARPNESS PRESENT (Continued): ROY WHITMORE C O N T E N T S PAGE Opening Remarks, Lynda Carlson 10 Update on 1997

  8. The Committee met in the Columbia Room at the Holiday Inn Capitol,

    U.S. Energy Information Administration (EIA) Indexed Site

    THURSDAY, APRIL 20, 1995 The Committee met in the Columbia Room at the Holiday Inn Capitol, 550 C Street, S.W., Washington, D.C., at 9:00 a.m., Timothy D. Mount, Chair, presiding. PRESENT: TIMOTHY D. MOUNT, Chair DAVID R. BELLHOUSE CHARLES W. BISCHOFF BRENDA G. COX FAYE DUCHIN JOHN D. GRACE PHILIP HANSER CALVIN KENT GRETA M. LJUNG JAMES L. O'BRIEN DANIEL A. RELLES BRADLEY O. SKARPNESS G. CAMPBELL WATKINS AGENDA Introductions by Committee Chair . . . . . . . . . 3 Opening Remarks by Administrator

  9. Consent-Based Siting Public Meeting Holiday Inn Capitol Plaza...

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

    Consent-Based Siting Public Meeting Holiday Inn Capitol Plaza - Sacramento 300 J Street Sacramento, CA 95814 April 26, 2016 4:00-5:00 PM Informal Open House and Poster Session ...

  10. Annual Review of BPA-Funded Projects in Natural and Artificial Propagation of Salmonids, March 27-29, 1985, Holiday Inn Airport, Portland, Oregon.

    SciTech Connect (OSTI)

    United States. Bonneville Power Administration.

    1985-04-01

    The Fish and Wildlife Division of Bonneville Power Administration (BPA) hosted a meeting for contractors to present the results of fiscal year 1984 research conducted to implement the Northwest Power Planning Council's Fish and Wildlife Program. The meeting focused on those projects specifically related to natural and artificial propagation of salmonids. The presentations were held at the Holiday Inn Airport in Portland, Oregon, on March 27-29, 1985. This document contains abstracts of the presentations from that meeting. Section 1 contains abstracts on artificial propagation, fish health, and downstream migration, and Section 2 contains abstracts on natural propagation and habitat improvement. The abstracts are indexed by BPA Project Number and by Fish and Wildlife Program Measure. The registered attendees at the meeting are listed alphabetically in Appendix A and by affiliation in Appendix B.

  11. Michelle L. Holiday | Department of Energy

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

    Michelle L. Holiday About Us Michelle L. Holiday - President, Michelle Holiday and Associates Michelle L. Holiday Michelle Holiday, an enrolled member of the Iowa Tribe of ...

  12. Holiday Gift Drive

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

    Gift Drive Holiday Gift Drive Every year, Laboratory employees help fulfill the holiday wishes of children and seniors in our communities. In 2015, our employees donated more than 1,200 gifts to 23 nonprofit organizations to help Northern New Mexico children, senior citizens, and families have a brighter holiday season. May 7, 2015 Every holiday season, employees of Los Alamos National Laboratory donate and distribute gifts to families in need throughout Northern New Mexico. Contacts Annual Food

  13. NERSC Holiday Schedule

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

    Holiday Schedule NERSC Holiday Schedule December 20, 2013 by Francesca Verdier All NERSC computing and storage systems will remain in full operation throughout the holiday season (Tuesday December 24 through Wednesday January 1). From Tuesday December 24 through Wednesday January 1, NERSC Consulting and Account Support services will be available *only* on Friday December 27 and Monday December 30, from 8:00 to 5:00 Pacific Time. Normal Consulting and Account Support schedules will resume on

  14. Holiday Food Drive

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

    Food Drive Holiday Food Drive Laboratory employees helped donate 300 boxes of nonperishable food items and 360 frozen turkeys during the 2015 annual food drive. September 16, 2013 LANL employees organize food for the Holiday Food Drive. Contacts Annual Food & Holiday Gift Drives Mike Martinez (505) 699-3388 Community Relations & Partnerships (505) 665-4400 Email Helping feed Northern New Mexico families During the Laboratory's 2015 Annual Food Drive, employees and subcontract workers

  15. Berkeley Lab Holiday Schedule

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

    Thursday, January 1, 2015 New Year's Holiday Monday, January 19, 2015 Martin Luther King Day Monday, February 16, 2015 Presidents Day Friday, March 27, 2015 Cesar Chavez Day**...

  16. Museum Closed for Thanksgiving Holiday

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

    Museum Closed for Thanksgiving Holiday Museum Closed for Thanksgiving Holiday WHEN: Nov 26, 2015 12:00 AM - 11:59 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM...

  17. Museum Closed for Christmas Holiday

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

    Museum Closed for Christmas Holiday Museum Closed for Christmas Holiday WHEN: Dec 25, 2015 12:00 AM - 11:59 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CATEGORY: Bradbury INTERNAL: Calendar Login Museum Closed for Christmas Holiday Event Description The Bradbury Science Museum will be CLOSED for the Christmas holiday. The Bradbury Science Museum is open to the public every day except for Thanksgiving Day, Christmas Day and New Year's Day. Admission is always

  18. Museum Closed for Thanksgiving Holiday

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

    Museum Closed for Thanksgiving Holiday Museum Closed for Thanksgiving Holiday WHEN: Nov 26, 2015 12:00 AM - 11:59 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544 USA CATEGORY: Bradbury INTERNAL: Calendar Login Museum Closed for Thanksgiving Holiday Event Description The museum will be CLOSED for the Thanksgiving holiday. The Bradbury Science Museum is open to the public every day except for Thanksgiving Day, Christmas Day and New Year's Day. Admission is always free.

  19. Leveraging Holidays and Other Events

    Broader source: Energy.gov [DOE]

    Better Buildings Residential Network Driving Demand Peer Exchange Call Series: Leveraging Holidays and Other Events, Call Slides and Discussion Summary, November 7, 2013.

  20. Code of Conduct regarding holiday gifts

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

    Code of Conduct regarding holiday gifts Code of Conduct regarding holiday gifts The holiday season is here again, and we need to remember our responsibilities as Laboratory employees. Code of Conduct regarding holiday gifts The holiday season is here again, and we need to remember our responsibilities as Laboratory employees. The holiday season brings gifts and invitations to open houses from customers, suppliers, and vendors that we do business with all year. It is important that we all

  1. Riverside Inn Pool & Spa Low Temperature Geothermal Facility...

    Open Energy Info (EERE)

    Inn Pool & Spa Low Temperature Geothermal Facility Jump to: navigation, search Name Riverside Inn Pool & Spa Low Temperature Geothermal Facility Facility Riverside Inn Sector...

  2. Helping make the holidays happier

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

    Helping Make The Holidays Happier Community Connections: Your link to news and opportunities from Los Alamos National Laboratory Latest Issue:May 2016 all issues All Issues » submit Helping make the holidays happier This year's LANL food drive collected enough donations to provide 11,600 meals for those in need. January 1, 2013 dummy image Read our archives Contacts Editor Linda Anderman Email Community Programs Office Kurt Steinhaus Email The contributions by employees included 164 turkeys

  3. GovCon Holiday Soiree

    Broader source: Energy.gov [DOE]

    The 6th Annual GovCon Holiday Soiree will be held at the Kennedy Center on Monday, December 8, from 5:30pm to 7:30pm. The event is expected to bring together more than 200 representatives of women-...

  4. holiday | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    holiday Labor Day Weekend 2015 Labor Day is dedicated to the achievements of American workers and the contributions they made to the strength, prosperity, and well-being of our country. Labor Day weekend also unofficially marks the end of summer and unfortunately is a time historically associated with increased mishaps.... Memorial Day Message Every year on Memorial Day, we honor the memory of those who died while defending our great Nation. We owe them, as well as their families and loved ones,

  5. The Saratoga Inn Pool & Spa Low Temperature Geothermal Facility...

    Open Energy Info (EERE)

    Saratoga Inn Pool & Spa Low Temperature Geothermal Facility Jump to: navigation, search Name The Saratoga Inn Pool & Spa Low Temperature Geothermal Facility Facility The Saratoga...

  6. River Inn Natural Hot Spring Pool & Spa Low Temperature Geothermal...

    Open Energy Info (EERE)

    Inn Natural Hot Spring Pool & Spa Low Temperature Geothermal Facility Jump to: navigation, search Name River Inn Natural Hot Spring Pool & Spa Low Temperature Geothermal Facility...

  7. Museum Closed for New Year's Holiday

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

    Museum Closed for New Year's Holiday Museum Closed for New Year's Holiday WHEN: Jan 01, 2016 12:00 AM - 11:59 PM WHERE: Bradbury Science Museum 1350 Central Ave, Los Alamos, NM 87544, USA CATEGORY: Bradbury INTERNAL: Calendar Login Museum Closed for New Year's Holiday Event Description The Bradbury Science Museum will be CLOSED for the New Year's holiday. The Bradbury Science Museum is open to the public every day except for Thanksgiving Day, Christmas Day and New Year's Day. Admission is always

  8. Energy-Efficient Holiday Decorating Tips | Department of Energy

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

    display, be sure to read these energy-efficient holiday decorating tips below: Buy LED ... Save Money with LED Holiday Light Strings LED Holiday Lights: Festive, Safe, and Efficient...

  9. It's Finally Time to Think about the Holidays! | Department of...

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

    It's Finally Time to Think about the Holidays It's Finally Time to Think about the Holidays December 5, 2012 - 12:13pm Addthis Using LED holiday lights is just one of the ways...

  10. Tips to Save Energy During the Holidays | Department of Energy

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

    Allison Casey Senior Communicator, NREL The winter holiday season has officially begun, and with it comes the frenzy of decorating, holiday gatherings, gift buying, and errand...

  11. Holiday

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

    in society. May 5 Tue 12:00 AM Cinco de Mayo United States and Mexico Cinco de Mayo (Spanish for "fifth of May") is a celebration held on May 5. Apr 13 Mon 12:00 AM Thomas...

  12. holiday

    National Nuclear Security Administration (NNSA)

    bloglabor-day-weekend-2015

    Labor Day is dedicated to the achievements of American workers and the contributions they made to the strength, prosperity, and well-being...

  13. A Factsheet on Holiday Fire Prevention

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

    ach year fires occurring during the holiday season claim the lives of over 400 Americans, injure 1,650 more, and cause over $990 million in damage. According to the U. S. Fire Administration (USFA), there are simple life-saving steps you can take to ensure a safe and happy holiday. By following some of the outlined precautionary tips, individuals can greatly reduce their chances of becoming a holiday fire casualty. Preventing Christmas tree Fires Special fire safety precautions need to be taken

  14. Solar Field Powers Historic Garden Holiday Display

    Broader source: Energy.gov [DOE]

    Popular holiday attraction Longwood Gardens in Pennsylvania has commissioned an American-made 1.2 megawatt, 10.7-acre solar field as part of a goal to generate three megawatts of renewable energy by 2018.

  15. I-N-N Electric Coop, Inc | Open Energy Information

    Open Energy Info (EERE)

    I-N-N Electric Coop, Inc Jump to: navigation, search Name: I-N-N Electric Coop, Inc Place: Alaska Phone Number: 800-571-1259 (In Alaska) or Outside Alaska: 907-571-1259 ...

  16. EM Waste Isolation Pilot Plant Team's Holiday Spirit Shines ...

    Office of Environmental Management (EM)

    Waste Isolation Pilot Plant Team's Holiday Spirit Shines EM Waste Isolation Pilot Plant Team's Holiday Spirit Shines December 23, 2013 - 12:00pm Addthis Aspen Cass, a relative of ...

  17. Fuel Cell Powers Up Festivities at Secretary Chu's Holiday Party |

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

    Department of Energy Powers Up Festivities at Secretary Chu's Holiday Party Fuel Cell Powers Up Festivities at Secretary Chu's Holiday Party December 16, 2011 - 11:25am Addthis A clean, efficient fuel cell powered the tree lights at the 2011 Energy Department holiday party. | Energy Department file photo. A clean, efficient fuel cell powered the tree lights at the 2011 Energy Department holiday party. | Energy Department file photo. Sunita Satyapal Director, Fuel Cell Technologies Office How

  18. Reduce Waste and Save Energy this Holiday Season

    Broader source: Energy.gov [DOE]

    Reduce waste and save energy this holiday season whether you're shopping, eating, partying, decorating, or wrapping.

  19. Tips to Save Energy During the Holidays | Department of Energy

    Energy Savers [EERE]

    Tips to Save Energy During the Holidays Tips to Save Energy During the Holidays December 2, 2008 - 1:33pm Addthis Allison Casey Senior Communicator, NREL The winter holiday season has officially begun, and with it comes the frenzy of decorating, holiday gatherings, gift buying, and errand running. Don't let your energy-saving efforts fall by the wayside amid all the festivities; the tips below will help you save energy and money even as you celebrate. Use LED Holiday Lights LED-or light-emitting

  20. How Do Holiday Lights Work? | Department of Energy

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

    Holiday Lights Work? How Do Holiday Lights Work? December 16, 2015 - 11:31am Addthis Daniel Wood Daniel Wood Data Visualization and Cartographic Specialist, Office of Public Affairs Sarah Gerrity Sarah Gerrity Former Multimedia Editor, Office of Public Affairs Want to learn more about Holiday Lights? Check out our recent post on the Top 5 Things You Didn't Know About Holiday Lights. Last year, we told you how incandescent holiday string lights work, but we left out an important topic: LED string

  1. Fountain Inn, South Carolina: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    district.12 Registered Energy Companies in Fountain Inn, South Carolina Verde Biofuels Inc References US Census Bureau Incorporated place and minor civil...

  2. Holiday Shopping and Electric Vehicles | GE Global Research

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

    Holiday Gifts for Energy Efficiency Holiday Gifts for Energy Efficiency December 18, 2013 - 3:58pm Addthis Energy-efficient light bulbs can make great energy-saving stocking stuffers. Energy-efficient light bulbs can make great energy-saving stocking stuffers. Erik Hyrkas Erik Hyrkas Media Relations Specialist, Office of Energy Efficiency & Renewable Energy How can I participate? Look for these energy-saving gifts while doing your holiday shopping this year. As the days get colder and

  3. Energy Saving Holiday Kitchen Trivia | Department of Energy

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

    But with winter temperatures creeping in, electricity savings are something to keep in mind, especially during your energy sucking holiday parties with friends and family. Test ...

  4. Your Holidays...Brought to You by Fuel Cells

    Broader source: Energy.gov [DOE]

    A story about how fuel cells are helping bring the holidays to you is currently posted on the Energy Department's Blog.

  5. EECBG Success Story: South Carolina Community Lights Up the Season with Energy-Efficient Holiday Lights

    Broader source: Energy.gov [DOE]

    A South Carolina community is proving that energy efficiency can improve the holidays by reducing energy and maintenance costs, thanks to its new LED holiday lights. Learn more.

  6. SRR Staff Send the Holidays to Soldiers Overseas

    Broader source: Energy.gov [DOE]

    A request for razors from a U.S. Army private serving in Afghanistan transformed into a full-scale holiday gift rescue operation by employees of the Savannah River Site’s liquid waste contractor,...

  7. How Do Holiday Lights Work? | Department of Energy

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

    ... While shunts serve to remedy an open circuit, fuses work to prevent damage due to a short ... of holiday lights, let's address some common problems we run into and how to remedy them. ...

  8. SEP Success Story: Solar Field Powers Historic Garden Holiday Display

    Broader source: Energy.gov [DOE]

    One of the most visited public gardens in the United States, and a popular attraction for elaborate holiday decorations, is now running on solar power thanks to help from the Energy Department. Learn more.

  9. SEP Success Story: Solar Field Powers Historic Garden Holiday...

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

    Photo courtesy of Longwood GardensW. Hill One of the most visited public gardens in the United States, and a popular attraction for elaborate holiday decorations, is now running...

  10. Meaningful Money Gifts at Holiday Time | The Ames Laboratory

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

    Meaningful Money Gifts at Holiday Time Give a small child a gift of money and they'll give you a sideways look and sheepish, "Thanks." They usually prefer boxes with big bows that...

  11. NREL Provides PV Holiday Lights for Christmas Tree

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

    Provides PV Holiday Lights for Christmas Tree For more information contact: George Douglas (303) 275-4096 Golden, Colo., December 2, 1997 -- National Renewable Energy Laboratory (NREL) engineers are showing off the power of photovoltaics in Washington, D.C. again this holiday season. They have installed an 8-kilowatt solar array on the Ellipse just south of the White House to help power lights on the National Christmas Tree. The tree lighting ceremony on Dec. 4 begins Washington's 1997 Pageant

  12. Workers Across the Nuclear Security Enterprise Give Back This Holiday

    National Nuclear Security Administration (NNSA)

    Season | National Nuclear Security Administration Workers Across the Nuclear Security Enterprise Give Back This Holiday Season December 23, 2009 This holiday season, employees from across the nuclear security enterprise have found countless ways to make this time of year more cheerful by lending a helping hand to the less fortunate in their communities. The following is a short summary of some of those efforts: Kansas City Plant (KCP) off site link Through the Salvation Army's Angel Tree

  13. Two-Dimensional Electron Gas in Monolayer InN Quantum Wells....

    Office of Scientific and Technical Information (OSTI)

    Two-Dimensional Electron Gas in Monolayer InN Quantum Wells. Citation Details In-Document Search Title: Two-Dimensional Electron Gas in Monolayer InN Quantum Wells. Abstract not...

  14. LED Holiday Lights: Festive, Safe, and Efficient! | Department of Energy

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

    LED Holiday Lights: Festive, Safe, and Efficient! LED Holiday Lights: Festive, Safe, and Efficient! December 2, 2010 - 4:34pm Addthis Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs Ed. Note cross posted from the Energy Savers Blog. Written by Allison Casey This week brings a day that many people look forward to all year -- and I'm not talking about Thanksgiving, or Black Friday. I'm talking about that magical day when it's finally okay to drag the dusty boxes from the

  15. LED Holiday Lights: Festive, Safe, and Efficient! | Department of Energy

    Energy Savers [EERE]

    LED Holiday Lights: Festive, Safe, and Efficient! LED Holiday Lights: Festive, Safe, and Efficient! December 2, 2010 - 4:34pm Addthis Andy Oare Andy Oare Former New Media Strategist, Office of Public Affairs Ed. Note cross posted from the Energy Savers Blog. Written by Allison Casey This week brings a day that many people look forward to all year -- and I'm not talking about Thanksgiving, or Black Friday. I'm talking about that magical day when it's finally okay to drag the dusty boxes from the

  16. Geothermal heating facilities for Frontier Inn, Susanville, California

    SciTech Connect (OSTI)

    Not Available

    1982-03-01

    The Frontier Inn, located in Susanville, California, is a 38 unit motel composed of six major sections (coffee shop, A frame units, apartments, back units, two story units and office). These sections were built over a number of years and exhibit widely varying types of construction. Space heating is provided by primarily electric resistance equipment with some propane use. Domestic hot water is provided primarily by propane with some electric resistance. The coffee shop uses fuel oil for both space and domestic hot water heating. The City of Susanville is currently in the process of installing a geothermal district heating system. Although the motel site is not located in the area of present construction activity, it is expected that the pipeline will be extended in the near future. This study examines the potential of retrofitting the existing heating facilities at the Frontier Inn to geothermal.

  17. Y-12 employees help make holiday merrier for many | Y-12 National...

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

    did the additional footwork needed to fulfill the holiday gift wishes of 497 children in Anderson, Roane, Morgan, Loudon, Scott and Monroe Counties. Coordinated this year...

  18. Top 5 Things You Didn't Know About Holiday Lights | Department of Energy

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

    Things You Didn't Know About Holiday Lights Top 5 Things You Didn't Know About Holiday Lights December 5, 2014 - 4:49pm Addthis With a fiery past and a bright future, here are 5 things you probably didn’t know about holiday lights. | Graphic by <a href="/node/379579">Sarah Gerrity</a>, Energy Department. With a fiery past and a bright future, here are 5 things you probably didn't know about holiday lights. | Graphic by Sarah Gerrity, Energy Department. Pat Adams Pat

  19. #tipsEnergy: How to Save Energy During the Holidays | Department...

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

    the Holidays December 21, 2012 - 2:20pm Addthis Rebecca Matulka Rebecca Matulka Former Digital Communications Specialist, Office of Public Affairs storify:http:storify.com...

  20. Reading Room

    Broader source: Energy.gov [DOE]

    Welcome to the Freedom of Information Act (FOIA) Electronic Reading Room for the Department of Energy at Headquarters.

  1. Buying an Appliance this Holiday Season? ENERGY STAR Products will Save You

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

    Money and Energy All Year! | Department of Energy an Appliance this Holiday Season? ENERGY STAR Products will Save You Money and Energy All Year! Buying an Appliance this Holiday Season? ENERGY STAR Products will Save You Money and Energy All Year! December 12, 2012 - 11:40am Addthis When shopping for appliances or electronics for the holidays, look for the ENERGY STAR® and EnergyGuide labels. | Photo by Dennis Schroeder, NREL 22090. When shopping for appliances or electronics for the

  2. They're Here! Winter, Holidays, and the New Year. How Will You Save Energy?

    Energy Savers [EERE]

    | Department of Energy They're Here! Winter, Holidays, and the New Year. How Will You Save Energy? They're Here! Winter, Holidays, and the New Year. How Will You Save Energy? December 22, 2009 - 10:11am Addthis Winter officially hit this week, and those of you on the east coast found out in a big way. Many of you are still shoveling out while trying to take care of those last-minute holiday preparations. (I'm actually kind of jealous. I love shoveling snow. I just hate driving in it.)

  3. Buying an Appliance this Holiday Season? ENERGY STAR Products...

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

    Appliances that you can find with an ENERGY STAR label include: Refrigerators Freezers Room air conditioners Televisions Clothes washers Dishwashers Battery chargers Water ...

  4. Y-12 helps more than 600 kids for the holidays | National Nuclear...

    National Nuclear Security Administration (NNSA)

    Photo Gallery Jobs Apply for Our Jobs Our Jobs Working at NNSA Blog Home NNSA Blog Y-12 helps more than 600 kids for ... Y-12 helps more than 600 kids for the holidays WATE...

  5. Holiday Auction raises record amount -- $5,842 | The Ames Laboratory

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

    loves his crisp Vince Dahl and Dave Boeke show off their holiday garb. Auctioneer Dale Meyer plies his trade. Julie Dredla looks to see who's bidding against her. What am I bid...

  6. Spectral dependence of third-order nonlinear optical properties in InN

    SciTech Connect (OSTI)

    Ahn, H. Lee, M.-T.; Chang, Y.-M.

    2014-05-19

    We report on the nonlinear optical properties of InN measured in a wide near-infrared spectral range with the femtosecond Z-scan technique. The above-bandgap nonlinear absorption in InN is found to originate from the saturation of absorption by the band-state-filling and its cross-section increases drastically near the bandgap energy. With below-bandgap excitation, the nonlinear absorption undergoes a transition from saturation absorption (SA) to reverse-SA (RSA), attributed to the competition between SA of band-tail states and two-photon-related RSA. The measured large nonlinear refractive index of the order of 10{sup −10} cm{sup 2}/W indicates InN as a potential material for all-optical switching and related applications.

  7. Two-dimensional electron gas in monolayer InN quantum wells

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

    Pan, Wei; Dimakis, Emmanouil; Wang, George T.; Moustakas, Theodore D.; Tsui, Daniel C.

    2014-11-24

    We report in this letter experimental results that confirm the two-dimensional nature of the electron systems in monolayer InN quantum wells embedded in GaN barriers. The electron density and mobility of the two-dimensional electron system (2DES) in these InN quantum wells are 5×1015 cm-2 and 420 cm2 /Vs, respectively. Moreover, the diagonal resistance of the 2DES shows virtually no temperature dependence in a wide temperature range, indicating the topological nature of the 2DES.

  8. News Room

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

    /science-innovation/_assets/images/icon-science.jpg News Room Your source for the latest news releases, fast facts, images and access to scores of scientists, engineers and other experts from Los Alamos National Laboratory. News Releases» Science Briefs» Photos» Picture of the Week» Publications» Social Media» Videos» Fact Sheets» Jonathan Ward Engle Physicist wins early-career award for isotope work Jonathan Ward Engle, is among 49 winners, of the US Department of Energy's Early Career

  9. Growth mechanism and microstructure of low defect density InN (0001) In-face thin films on Si (111) substrates

    SciTech Connect (OSTI)

    Kehagias, Th.; Dimitrakopulos, G. P.; Koukoula, T.; Komninou, Ph.; Ajagunna, A. O.; Georgakilas, A.; Physics Department, University of Crete, P.O. Box 2208, 71003 Heraklion-Crete ; Tsagaraki, K.; Adikimenakis, A.

    2013-10-28

    Transmission electron microscopy has been employed to analyze the direct nucleation and growth, by plasma-assisted molecular beam epitaxy, of high quality InN (0001) In-face thin films on (111) Si substrates. Critical steps of the heteroepitaxial growth process are InN nucleation at low substrate temperature under excessively high N-flux conditions and subsequent growth of the main InN epilayer at the optimum conditions, namely, substrate temperature 400450 C and In/N flux ratio close to 1. InN nucleation occurs in the form of a very high density of three dimensional (3D) islands, which coalesce very fast into a low surface roughness InN film. The reduced reactivity of Si at low temperature and its fast coverage by InN limit the amount of unintentional Si nitridation by the excessively high nitrogen flux and good bonding/adhesion of the InN film directly on the Si substrate is achieved. The subsequent overgrowth of the main InN epilayer, in a layer-by-layer growth mode that enhances the lateral growth of InN, reduces significantly the crystal mosaicity and the density of threading dislocations is about an order of magnitude less compared to InN films grown using an AlN/GaN intermediate nucleation/buffer layer on Si. The InN films exhibit the In-face polarity and very smooth atomically stepped surfaces.

  10. Cut Gas Costs This Holiday Traveling Season with Three Easy Tips |

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

    Department of Energy Cut Gas Costs This Holiday Traveling Season with Three Easy Tips Cut Gas Costs This Holiday Traveling Season with Three Easy Tips November 26, 2013 - 9:23am Addthis Turning off your engine while waiting in the parking lot is a great way to save money on gas. | Photo courtesy of Kristy Keel-Blackmon, NREL/21196. Turning off your engine while waiting in the parking lot is a great way to save money on gas. | Photo courtesy of Kristy Keel-Blackmon, NREL/21196. Jason

  11. North Pole's Holiday Wish for An Energy Efficient 2012 | Department of

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

    Energy Pole's Holiday Wish for An Energy Efficient 2012 North Pole's Holiday Wish for An Energy Efficient 2012 December 23, 2011 - 4:20pm Addthis The city of North Pole, Alaska, is hoping to use $100,000 in Energy Efficiency and Conservation Block Grant funds to improve the energy efficiency of several key city facilities.| Photo courtesy of the a href"http://www.northpolefire.org/">North Pole Fire Department.</a> The city of North Pole, Alaska, is hoping to use $100,000

  12. Video e-card offers holiday greetings from everyone at PPPL | Princeton

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

    Plasma Physics Lab Video e-card offers holiday greetings from everyone at PPPL December 22, 2014 Tweet Widget Google Plus One Share on Facebook Staff of the U.S. Department of Energy's Princeton Plasma Physics Laboratory gathered on the Lab's front lawn on the Forrestal Campus in Plainsboro, N.J., to create the facility's first holiday video e-card. Participants flashed orange placards in a wave to form the PPPL logo. Photographer and multimedia specialist Elle Starkman, who is highly

  13. Nanostructural and electronic properties of polytypes in InN nanocolumns

    SciTech Connect (OSTI)

    Kioseoglou, J.; Koukoula, T.; Komninou, Ph.; Kehagias, Th.; Georgakilas, A.; Androulidaki, M.

    2013-08-21

    Transmission electron microscopy techniques and density functional theory calculations were employed to investigate the nanostructural and electronic properties of InN polytypes observed in InN nanocolumns, grown on Si(111) by molecular beam epitaxy. Moir fringes and alternating hexagonal and cubic lattice stacking sequences along the c-axis, observed among the wurtzite layers, implied the presence of different structures embedded in the basic 2H structure of the nanocolumns. Quantitative electron diffraction analysis and high-resolution image simulations verified the coexistence of the wurtzite structure with the 4H, 6H, and the 3C zinc-blende structural polytypes. Total energies calculations established the 2H wurtzite structure as the most stable polytype. The band gap of all polytypes was found direct with the energies and the band gaps of the 4H (E{sub g} = 0.64 eV) and 6H (E{sub g} = 0.60 eV) structures calculated between the corresponding values of the 2H (E{sub g} = 0.75 eV) and 3C (E{sub g} = 0.49 eV) basic structures. Theoretical and experimental analysis showed that at the initial stages of growth InN nanocolumns were under tensile strain along both the basal plane and growth direction. Structural polytypes were then introduced in the form of embedded inclusions to accommodate the excess tensile strain along the growth direction, allowing the entire process of polymorphism to be the dominant strain relaxation mechanism of InN nanocolumns. Moreover, the lattice and energetic properties and band gap values of InN polytypes showed a linear dependence on hexagonality, while the presence of polytypes led to a characteristic broadening of the photoluminescence emission peak toward lower emission energies.

  14. Sulfur passivation of surface electrons in highly Mg-doped InN

    SciTech Connect (OSTI)

    Linhart, W. M.; Veal, T. D.; Chai, J.; McConville, C. F.; Durbin, S. M.; Department of Electrical and Computer Engineering, Western Michigan University, Kalamazoo, Michigan 49008

    2013-09-14

    Electron accumulation with a sheet density greater than 10{sup 13} cm{sup −2} usually occurs at InN surfaces. Here, the effects of treatment with ammonium sulfide ((NH{sub 4}){sub 2}S{sub x}) on the surface electronic properties of highly Mg-doped InN (>4×10{sup 18} cm{sup −3}) have been investigated with high resolution x-ray photoemission spectroscopy. The valence band photoemission spectra show that the surface Fermi level decreases by approximately 0.08 eV with (NH{sub 4}){sub 2}S{sub x} treatment, resulting in a decrease of the downward band bending and up to a 70% reduction in the surface electron sheet density.

  15. Growth modes of InN(000-1) on GaN buffer layers on sapphire

    SciTech Connect (OSTI)

    Liu, Bing; Kitajima, Takeshi; Chen, Dongxue; Leone, Stephen R.

    2005-01-24

    In this work, using atomic force microscopy and scanning tunneling microscopy, we study the surface morphologies of epitaxial InN films grown by plasma-assisted molecular beam epitaxy with intervening GaN buffer layers on sapphire substrates. On smooth GaN buffer layers, nucleation and evolution of three-dimensional InN islands at various coverages and growth temperatures are investigated. The shapes of the InN islands are observed to be predominantly mesa-like with large flat (000-1) tops, which suggests a possible role of indium as a surfactant. Rough GaN buffer layers composed of dense small GaN islands are found to significantly improve uniform InN wetting of the substrates, on which atomically smooth InN films are obtained that show the characteristics of step-flow growth. Scanning tunneling microscopy imaging reveals the defect-mediated surface morphology of smooth InN films, including surface terminations of screw dislocations and a high density of shallow surface pits with depths less than 0.3 nm. The mechanisms of the three-dimensional island size and shape evolution and formation of defects on smooth surfaces are considered.

  16. Elimination of surface band bending on N-polar InN with thin GaN capping

    SciTech Connect (OSTI)

    Kuzmík, J. Haščík, Š.; Kučera, M.; Kúdela, R.; Dobročka, E.; Adikimenakis, A.; Mičušík, M.; Gregor, M.; Plecenik, A.; Georgakilas, A.

    2015-11-09

    0.5–1 μm thick InN (0001) films grown by molecular-beam epitaxy with N- or In-polarity are investigated for the presence of native oxide, surface energy band bending, and effects introduced by 2 to 4 monolayers of GaN capping. Ex situ angle-resolved x-ray photo-electron spectroscopy is used to construct near-surface (GaN)/InN energy profiles, which is combined with deconvolution of In3d signal to trace the presence of InN native oxide for different types of polarity and capping. Downwards surface energy band bending was observed on bare samples with native oxide, regardless of the polarity. It was found that the In-polar InN surface is most readily oxidized, however, with only slightly less band bending if compared with the N-polar sample. On the other hand, InN surface oxidation was effectively mitigated by GaN capping. Still, as confirmed by ultra-violet photo-electron spectroscopy and by energy band diagram calculations, thin GaN cap layer may provide negative piezoelectric polarization charge at the GaN/InN hetero-interface of the N-polar sample, in addition to the passivation effect. These effects raised the band diagram up by about 0.65 eV, reaching a flat-band profile.

  17. NNMCAB Board Minutes: June 2000 Taos

    Broader source: Energy.gov [DOE]

    Minutes of the June 28, 2000 Board meeting at Holiday Inn Presentation LANL, Procurement Process, Betty Romero

  18. NNMCAB Board Minutes: November 2002 Santa Fe

    Broader source: Energy.gov [DOE]

    Minutes of the November 20, 2002 Board meeting at Holiday Inn Planning for SSAB Chairs Workshop on Transuranic Waste

  19. NNMCAB Board Minutes: July 2009 Santa Fe

    Broader source: Energy.gov [DOE]

    Minutes of the July 29, 2009 Board meeting at Holiday Inn Q&A With New Mexico Environment Department

  20. NNMCAB Board Minutes: May 2008 Santa Fe

    Broader source: Energy.gov [DOE]

    Minutes of the May 22, 2008 Board meeting at Holiday Inn Presentation San Ildefonso, Tribal Risk Assessment, Raymond Martinez

  1. Optical characterization of free electron concentration in heteroepitaxial InN layers using Fourier transform infrared spectroscopy and a 2 Multiplication-Sign 2 transfer-matrix algebra

    SciTech Connect (OSTI)

    Katsidis, C. C.; Ajagunna, A. O.; Georgakilas, A.

    2013-02-21

    Fourier Transform Infrared (FTIR) reflectance spectroscopy has been implemented as a non-destructive, non-invasive, tool for the optical characterization of a set of c-plane InN single heteroepitaxial layers spanning a wide range of thicknesses (30-2000 nm). The c-plane (0001) InN epilayers were grown by plasma-assisted molecular beam epitaxy (PAMBE) on GaN(0001) buffer layers which had been grown on Al{sub 2}O{sub 3}(0001) substrates. It is shown that for arbitrary multilayers with homogeneous anisotropic layers having their principal axes coincident with the laboratory coordinates, a 2 Multiplication-Sign 2 matrix algebra based on a general transfer-matrix method (GTMM) is adequate to interpret their optical response. Analysis of optical reflectance in the far and mid infrared spectral range has been found capable to discriminate between the bulk, the surface and interface contributions of free carriers in the InN epilayers revealing the existence of electron accumulation layers with carrier concentrations in mid 10{sup 19} cm{sup -3} at both the InN surface and the InN/GaN interface. The spectra could be fitted with a three-layer model, determining the different electron concentration and mobility values of the bulk and of the surface and the interface electron accumulation layers in the InN films. The variation of these values with increasing InN thickness could be also sensitively detected by the optical measurements. The comparison between the optically determined drift mobility and the Hall mobility of the thickest sample reveals a value of r{sub H} = 1.49 for the Hall factor of InN at a carrier concentration of 1.11 Multiplication-Sign 10{sup 19} cm{sup -3} at 300 Degree-Sign {Kappa}.

  2. Clean room wiping cloths

    SciTech Connect (OSTI)

    Harding, W.B.

    1981-01-01

    The suitability of various fabrics for use as clean room wiping cloths was investigated. These fabrics included knit polyester, knit nylon, urethane foam, woven cotton, nonwoven polyester, nonwoven rayon, nonwoven polyethylene and polypropylene, and woven nylon. These materials were tested for detachable lint and fibers, deterioration, and oil content which could leave contaminating films on wiped surfaces. Well-laundered nylon and polyester cloths knitted from filamentary yarn, with hems, were found to be suitable. (LCL)

  3. Optical and structural characterization of nitrogen-rich InN: Transition from nearly intrinsic to strongly n-type degenerate with temperature

    SciTech Connect (OSTI)

    Hong Tran, Nhung; Huy Le, Binh; Fan, Shizhao; Zhao, Songrui; Mi, Zetian; Schmidt, Benjamin A.; Savard, Michel; Gervais, Guillaume; Butcher, Kenneth Scott A.

    2013-12-23

    We report on a detailed study of the structural and optical properties of nonstoichiometric nitrogen-rich InN grown on sapphire substrates, by migration enhanced afterglow deposition. The samples were polycrystalline, with the presence of InN dots. Unusually strong photoluminescence emission was measured at cryogenic temperatures, with the peak energy at ?0.68?eV. Detailed analysis further shows that the sample has very low residual electron density in the range of ?10{sup 16}?cm{sup ?3} at temperatures below 20?K.

  4. CEBAF Control Room Renovation

    SciTech Connect (OSTI)

    Michael Spata; Anthony Cuffe; Thomas Oren

    2005-03-22

    The Machine Control Center (MCC) at Jefferson Lab's Continuous Electron Beam Accelerator Facility (CEBAF) was constructed in the early 1990s and based on proven technology of that era. Through our experience over the last 15 years and in our planning for the facilities 12 GeV upgrade we reevaluated the control room environment to capitalize on emerging visualization and display technologies and improve on work-flow processes and ergonomic attributes. The renovation was performed in two phases during the summer of 2004, with one phase occurring during machine operations and the latter, more extensive phase, occurring during our semi-annual shutdown period. The new facility takes advantage of advances in display technology, analog and video signal management, server technology, ergonomic workspace design, lighting engineering, acoustic ceilings and raised flooring solutions to provide a marked improvement in the overall environment of machine operations.

  5. CEBAF Control Room Renovation

    SciTech Connect (OSTI)

    Michael Spata; Thomas Oren

    2005-05-01

    The Machine Control Center at Jefferson Lab's Continuous Electron Beam Accelerator Facility was initially constructed in the early 1990s and based on proven technology of that era. Through our experience over the last 15 years and in our planning for the facilities 12 GeV upgrade we reevaluated the control room environment to capitalize on emerging visualization and display technologies and improve on workflow processes and ergonomic attributes. This effort also sets the foundation for the redevelopment of the accelerator's control system to deliver high reliability performance with improvements in beam specifications management and information flow. The complete renovation was performed over a three-week period with no interruption to beam operations. We present the results of this effort.

  6. Electronic and thermoelectric properties of InN studied using ab initio density functional theory and Boltzmann transport calculations

    SciTech Connect (OSTI)

    Borges, P. D. E-mail: lscolfaro@txstate.edu; Scolfaro, L. E-mail: lscolfaro@txstate.edu

    2014-12-14

    The thermoelectric properties of indium nitride in the most stable wurtzite phase (w-InN) as a function of electron and hole concentrations and temperature were studied by solving the semiclassical Boltzmann transport equations in conjunction with ab initio electronic structure calculations, within Density Functional Theory. Based on maximally localized Wannier function basis set and the ab initio band energies, results for the Seebeck coefficient are presented and compared with available experimental data for n-type as well as p-type systems. Also, theoretical results for electric conductivity and power factor are presented. Most cases showed good agreement between the calculated properties and experimental data for w-InN unintentionally and p-type doped with magnesium. Our predictions for temperature and concentration dependences of electrical conductivity and power factor revealed a promising use of InN for intermediate and high temperature thermoelectric applications. The rigid band approach and constant scattering time approximation were utilized in the calculations.

  7. Reading Room | Department of Energy

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

    Reading Room Reading Room Welcome to the Freedom of Information Act (FOIA) Electronic Reading Room for the Department of Energy at Headquarters. The FOIA requires certain kinds of documents to be made available to the public for inspection and copying. This is a requirement for agencies of the executive branch of the federal government. The documents that are required to be made available by the FOIA are: Final Opinions [5 USC 552 (a)(2)](A) final opinions, including concurring and dissenting

  8. Public Reading Room | Jefferson Lab

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

    Public Reading Room Welcome to the U.S. Department of Energy Public Reading Room. In the Reading Room, you will find a host of technical and non-technical reports about Jefferson Lab and its operations. These reports include the lab's performance report card, environmental impact studies and more. Paper copies of these documents may be read at Jefferson Lab's Public Reading Area, located in CEBAF Center (Building 12), 12000 Jefferson Ave., Newport News, VA 23606. The reading area is located in

  9. Reading Room | Department of Energy

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

    Reading Rooms, Government Information Department Zimmerman Library University of New Mexico Albuquerque, New Mexico 87131-0001 Contact: Dan Barkley Phone: 505-277-7180 Email:...

  10. ERSUG: July 11 - 12, 1994 (Rockville, Maryland)

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

    ERSUG: July 11 - 12, 1994 (Rockville, Maryland) Dates July 11 - 12, 1994 Location Holiday Inn, Crowne Plaza Rockville, Maryland Presentations Agenda ERSUG Meeting July 11-12, 1994 Holiday Inn, Crowne Plaza Rockville, MD The Energy Research Supercomputer Users' Group (ERSUG) will meet at the Holiday Inn, Crowne Plaza in Rockville, MD on July 11-12, 1994. In the past, this meeting has combined presentations describing work-in-progress at NERSC with lively user discussions in the areas of the

  11. The 'Room within a Room' Concept for Monitored Warhead Dismantlement

    SciTech Connect (OSTI)

    Tanner, Jennifer E.; Benz, Jacob M.; White, Helen; McOmish, Sarah; Allen, Keir; Tolk, Keith; Weeks, George E.

    2014-12-01

    Over the past 10 years, US and UK experts have engaged in a technical collaboration with the aim of improving scientific and technological abilities in support of potential future nuclear arms control and non-proliferation agreements. In 2011 a monitored dismantlement exercise provided an opportunity to develop and test potential monitoring technologies and approaches. The exercise followed a simulated nuclear object through a dismantlement process and looked to explore, with a level of realism, issues surrounding device and material monitoring, chain of custody, authentication and certification of equipment, data management and managed access. This paper focuses on the development and deployment of the room-within-a-room system, which was designed to maintain chain of custody during disassembly operations. A key challenge for any verification regime operating within a nuclear weapon complex is to provide the monitoring party with the opportunity to gather sufficient evidence, whilst protecting sensitive or proliferative information held by the host. The requirement to address both monitoring and host party concerns led to a dual function design which: Created a controlled boundary around the disassembly process area which could provide evidence of unauthorised diversion activities. Shielded sensitive disassembly operations from monitoring party observation. The deployed room-within-a-room was an integrated system which combined a number of chain of custody technologies (i.e. cameras, tamper indicating panels and enclosures, seals, unique identifiers and radiation portals) and supporting deployment procedures. This paper discusses the bounding aims and constraints identified by the monitoring and host parties with respect to the disassembly phase, the design of the room-within-a-room system, lessons learned during deployment, conclusions and potential areas of future work. Overall it was agreed that the room-within-a-room approach was effective but the individual technologies used to create the system deployed during this exercise required further development.

  12. NNMCAB Board Minutes: July 2010 Los Alamos

    Broader source: Energy.gov [DOE]

    Minutes of the July 28, 2010 Board meeting at Holiday Inn Presentation LANL, Material Disposal Area T Background and Status Update

  13. NNMCAB Board Minutes: July 2011 Los Alamos

    Broader source: Energy.gov [DOE]

    Minutes of the July 27, 2011 Board meeting at Holiday Inn Presentation LANL, Los Conchas Fire, Dave McInroy Presentation DOE, Waste Isolation Pilot Plant, John Heaton

  14. NNMCAB Board Minutes: April 2009 Santa Fe

    Broader source: Energy.gov [DOE]

    Minutes of the April 8, 2009 Board meeting at Holiday Inn Presentation Kerr Laboratory, Well Screen Analysis Report, Steven Acree, Richard Wilkin

  15. Nuclear reactor control room construction

    DOE Patents [OSTI]

    Lamuro, Robert C. (Pittsburgh, PA); Orr, Richard (Pittsburgh, PA)

    1993-01-01

    A control room 10 for a nuclear plant is disclosed. In the control room, objects 12, 20, 22, 26, 30 are no less than four inches from walls 10.2. A ceiling 32 contains cooling fins 35 that extend downwards toward the floor from metal plates 34. A concrete slab 33 is poured over the plates. Studs 36 are welded to the plates and are encased in the concrete.

  16. Nuclear reactor control room construction

    DOE Patents [OSTI]

    Lamuro, R.C.; Orr, R.

    1993-11-16

    A control room for a nuclear plant is disclosed. In the control room, objects labelled 12, 20, 22, 26, 30 in the drawing are no less than four inches from walls labelled 10.2. A ceiling contains cooling fins that extend downwards toward the floor from metal plates. A concrete slab is poured over the plates. Studs are welded to the plates and are encased in the concrete. 6 figures.

  17. Room Temperature Dispenser Photocathode Using Elemental Cesium

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

    Room Temperature Dispenser Photocathode Using Elemental Cesium Room Temperature Dispenser Photocathode Using Elemental Cesium Los Alamos National Laboratory (LANL) researchers have...

  18. Public Reading Room: Environmental Documents, Reports

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

    Public Reading Room: Environmental Documents, Reports Public Reading Room: Environmental Documents, Reports Environmental documents and reports are available online. Hard copies...

  19. Room Air Conditioners | Department of Energy

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

    Room Air Conditioners Room Air Conditioners A room air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/kschulze. A room air conditioner is one solution to cooling part of a house. | Photo courtesy of ©iStockphoto/kschulze. Room or window air conditioners cool rooms rather than the entire home or business. If they provide cooling only where they're needed, room air conditioners are less expensive to operate than central units, even though their

  20. News Room | Argonne National Laboratory

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

    News Room The University of Chicago, the Marine Biological Laboratory (MBL), and the U.S. Department of Energy's Argonne National Laboratory announced today a new partnership called The Microbiome Center that will combine the three institutions' efforts to understand the identity and function of microbes across environments. New Microbiome Center to combine UChicago, Marine Biological Laboratory and Argonne expertise Full Story » The University of Chicago, the Marine Biological Laboratory

  1. Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet...

    Energy Savers [EERE]

    Passive Room-to-Room Air Transfer Fresno, California PROJECT INFORMATION Construction: ... houses with no means of providing conditioned air to bedrooms except via open doors. ...

  2. Energy Integration Visualization Room (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-08-01

    This two-page fact sheet describes the new Energy Integration Visualization Room in the ESIF and talks about some of the capabilities and unique visualization features of the the room.

  3. Room temperature ferrimagnetism and ferroelectricity in strained...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Room temperature ferrimagnetism and ferroelectricity in strained, thin films of BiFe 0.5 Mn 0.5 O 3 Citation Details In-Document Search Title: Room temperature ...

  4. Carbon War Room | Open Energy Information

    Open Energy Info (EERE)

    War Room Jump to: navigation, search Name: Carbon War Room Place: Washington, DC Number of Employees: 1-10 Website: www.carbonwarroom.com Coordinates: 38.8951118, -77.0363658...

  5. Public Reading Room: Environmental Documents, Reports

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

    Public Reading Room: Environmental Documents, Reports Public Reading Room: Environmental Documents, Reports Environmental documents and reports are available online. Hard copies are available at the Laboratory's Public Reading Room in Pojoaque, New Mexico. Contact Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 Email Public Reading Room: Environmental Documents, Reports Online Annual Environmental Report Electronic Public Reading

  6. International Cooperation Holiday Cheer

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

    Administration International Atomic Energy Agency Secretary Moniz awards Hutcheon memorial nonproliferation fellowship to Thomas Gray Energy Secretary Ernest Moniz (second from bottom left, clockwise) and Anne Harrington, NNSA deputy administrator for Defense Nuclear Nonproliferation (sitting next to Moniz), discuss Ian Hutcheon's legacy with his wife Nancy (across from Harrington) and daughter Dana Hutcheon Gordon. Energy... DOE/NNSA's Nonproliferation Experts Lead First Workshop on the

  7. Holiday Gift Drive

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

    Disabilities Espanola Valley Toy Run Las Vegas Adult Protective Services La Tierra Montessori Los Alamos Family Council Ohkay Owingeh Boys and Girls Clubs Rio ArribaLos Alamos...

  8. Holiday Food Drive

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

    Community Programs Office (505) 665-4400 Email Get Expertise Helping feed Northern New Mexico families During the Laboratory's 2015 Annual Food Drive, employees and subcontract...

  9. Heating remote rooms in passive solar buildings

    SciTech Connect (OSTI)

    Balcomb, J.D.

    1981-01-01

    Remote rooms can be effectively heated by convection through a connecting doorway. A simple steady-state equation is developed for design purposes. Validation of a dynamic model is achieved using data obtained over a 13-day period. Dynamic effects are investigated using a simulation analysis for three different cases of driving temperature; the effect is to reduce the temperature difference between the driving room and the remote room compared to the steady-state model. For large temperature swings in the driving room a strategy which uses the intervening door in a diode mode is effective. The importance of heat-storing mass in the remote room is investigated.

  10. Bioenergy 2015 Press Room | Department of Energy

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

    Press Room Bioenergy 2015 Press Room This U.S. Department of Energy Bioenergy 2015 online press room provides contacts, information, and resources to members of the media who cover Bioenergy 2015 conference-related news. Event Overview The U.S. Department of Energy's Bioenergy Technologies Office (BETO) will host its eighth annual conference-Bioenergy 2015: Opportunities in a Changing Energy Landscape. Co-hosted with the Clean Energy Research and Education Foundation, this year's conference

  11. Laboratory's Electronic Public Reading room training

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

    October » Electronic Public Reading Room Training Laboratory's Electronic Public Reading room training WHEN: Oct 14, 2015 4:00 PM - 6:00 PM WHERE: J. Robert Oppenheimer Study Center, Room JRO 1&2 West Jemez Road at Casa Grande CATEGORY: Community Environment INTERNAL: Calendar Login Event Description The Department of Energy (DOE) and the Los Alamos National Security, LLC (LANS), are holding training on the contents and use of the Los Alamos National Laboratory (LANL) Electronic Public

  12. Electronic FOIA Reading Room - Hanford Site

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

    Freedom of Information and Privacy Act DOE Headquarters FOIA Web Page A Citizen's Guide to the FOIA and Privacy Act Making a Privacy Act Request Freedom of Information Act, 5 U.S.C. Freedom of Information Act Regulations Privacy Act Regulations DOE Public Reading Room PNNL Technical Library Electronic FOIA Reading Room FOIA EDocuments Freedom of Information Act & Privacy Act Contacts Records Previously Disclosed Helpful Links FOIA Home FOIA Portal Electronic FOIA Reading Room Email Email

  13. NEPA Reading Room | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    NEPA Reading Room Welcome to the National Nuclear Security Administration's NEPA Reading Room. This site serves as a focal point for NNSA NEPA implementation and contains information about past and current NNSA NEPA actions as well as other resources for NEPA practitioners and members of the public. Welcome to the National Nuclear Security Administration's NEPA Reading Room. This site serves as a focal point for NNSA NEPA implementation and contains information about past and current NNSA NEPA

  14. Covered Product Category: Room Air Conditioners | Department...

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

    ... This calculator allows the user to input a location, cooling capacity of the room air conditioners, efficiency (i.e., EER) and rate for electricity. The output section ...

  15. NATURAL CONVECTION IN ROOM GEOMETRIES

    SciTech Connect (OSTI)

    Gadgil, A.; Bauman, Fred; Kammerud, R.; Ruberg, K.

    1980-06-01

    Computer programs have been developed to numerically simulate natural convection in room geometries in two and three dimensions. The programs have been validated using published data from the literature, results from a full-scale experiment performed at Massachusetts Institute of Technology, and results from a small-scale experiment reported here. One of the computer programs has been used to study the influence of natural convection on the thermal performance of a single thermal zone in a direct-gain passive solar building. The results indicate that the building heating loads calculated by standard building energy analysis methods may be in error by as much as 50% as a result of their use of common assumptions regarding the convection processes which occur in an enclosure. It is also found that the convective heat transfer coefficients between the air and the enclosure surfaces can be substantially different from the values assumed in the standard building energy analysis methods, and can exhibit significant variations across a given surface.

  16. High Efficiency Room Air Conditioner

    SciTech Connect (OSTI)

    Bansal, Pradeep

    2015-01-01

    This project was undertaken as a CRADA project between UT-Battelle and Geberal Electric Company and was funded by Department of Energy to design and develop of a high efficiency room air conditioner. A number of novel elements were investigated to improve the energy efficiency of a state-of-the-art WAC with base capacity of 10,000 BTU/h. One of the major modifications was made by downgrading its capacity from 10,000 BTU/hr to 8,000 BTU/hr by replacing the original compressor with a lower capacity (8,000 BTU/hr) but high efficiency compressor having an EER of 9.7 as compared with 9.3 of the original compressor. However, all heat exchangers from the original unit were retained to provide higher EER. The other subsequent major modifications included- (i) the AC fan motor was replaced by a brushless high efficiency ECM motor along with its fan housing, (ii) the capillary tube was replaced with a needle valve to better control the refrigerant flow and refrigerant set points, and (iii) the unit was tested with a drop-in environmentally friendly binary mixture of R32 (90% molar concentration)/R125 (10% molar concentration). The WAC was tested in the environmental chambers at ORNL as per the design rating conditions of AHAM/ASHRAE (Outdoor- 95F and 40%RH, Indoor- 80F, 51.5%RH). All these modifications resulted in enhancing the EER of the WAC by up to 25%.

  17. Los Alamos test-room results

    SciTech Connect (OSTI)

    McFarland, R.D.; Balcomb, J.D.

    1982-01-01

    Fourteen Los Alamos test rooms have been operated for several years; this paper covers operation during the winters of 1980-81 and 1981-82. Extensive data have been taken and computer analyzed to determine performance parameters such as efficiency, solar savings fraction, and comfort index. The rooms are directly comparable because each has the same net coefficient and solar collection area and thus the same load collector ratio. Configurations include direct gain, unvented Trombe walls, water walls, phase change walls, and two sunspace geometries. Strategies for reducing heat loss include selective surfaces, two brands of superglazing windows, a heat pipe system, and convection-suppression baffles. Significant differences in both backup heat and comfort are observed among the various rooms. The results are useful, not only for direct room-to-room comparisons, but also to provide data for validation of computer simulation programs.

  18. PRESENT:

    U.S. Energy Information Administration (EIA) Indexed Site

    PUBLIC MEETING + + + + + FRIDAY NOVEMBER 14, 1997 + + + + + WASHINGTON, D.C. The Committee met in the Clark Room of the Capital Holiday Inn, 550 C Street, S.W., at 10:30 a.m., G. Campbell Watkins, Chair, presiding. PRESENT: G. CAMPBELL WATKINS, Chair DANIEL A. RELLES, Vice Chair DAVID R. BELLHOUSE R. SAMPRIT CHATTERJEE BRENDA G. COX CAROL A. GOTWAY CRAWFORD PHILIP HANSEN CALVIN KENT GRETA M. LJUNG ROY W. WHITMORE INVITED GUESTS: SEYMOUR SUDMAN RICHARD TABORS EIA STAFF PRESENT: JAY HAKES, EIA

  19. InGaN/GaN multiple-quantum-well light-emitting diodes with a grading InN composition suppressing the Auger recombination

    SciTech Connect (OSTI)

    Zhang, Zi-Hui; Liu, Wei; Ju, Zhengang; Tan, Swee Tiam; Ji, Yun; Kyaw, Zabu; Zhang, Xueliang; Wang, Liancheng; Sun, Xiao Wei E-mail: VOLKAN@stanfordalumni.org; Demir, Hilmi Volkan E-mail: VOLKAN@stanfordalumni.org

    2014-07-21

    In conventional InGaN/GaN light-emitting diodes (LEDs), thin InGaN quantum wells are usually adopted to mitigate the quantum confined Stark effect (QCSE), caused due to strong polarization induced electric field, through spatially confining electrons and holes in small recombination volumes. However, this inevitably increases the carrier density in quantum wells, which in turn aggravates the Auger recombination, since the Auger recombination scales with the third power of the carrier density. As a result, the efficiency droop of the Auger recombination severely limits the LED performance. Here, we proposed and showed wide InGaN quantum wells with the InN composition linearly grading along the growth orientation in LED structures suppressing the Auger recombination and the QCSE simultaneously. Theoretically, the physical mechanisms behind the Auger recombination suppression are also revealed. The proposed LED structure has experimentally demonstrated significant improvement in optical output power and efficiency droop, proving to be an effective solution to this important problem of Auger recombination.

  20. OMEGA Control Room - Laboratory for Laser Energetics

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

    Control Room - Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map to LLE ...

  1. Room temperature ferrimagnetism and ferroelectricity in strained...

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Search Results Journal Article: Room temperature ferrimagnetism and ferroelectricity in strained, thin films of BiFe 0.5 Mn 0.5 O 3 Citation Details In-Document ...

  2. TA1 Room Layout with Newport Laser

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

    SCALE: 12" X 12" N S E W 22.50° JUPITER LASER FACILITY TA1 ROOM TA1 CHAMBER WEST BEAM CABLE COVER VISAR VIDMAR C O N T R O L R A C K

  3. Room-temperature creep of tantalum tritides

    SciTech Connect (OSTI)

    Schober, T.; Trinkaus, H. )

    1990-06-15

    We report on long-term creep experiments on dilute tantalum tritides at room temperature. Significant deviations of the recorded strain rates from isotropic swelling are found above approximately 30 MPa. We attribute this room-temperature creep to a stress-induced preferential dislocation loop punching by bubbles in crystallographic directions close the stress axis. Quantitative estimates show that this mechanism can indeed account for the observed creep rates.

  4. Determining Camera Gain in Room Temperature Cameras

    SciTech Connect (OSTI)

    Joshua Cogliati

    2010-12-01

    James R. Janesick provides a method for determining the amplification of a CCD or CMOS camera when only access to the raw images is provided. However, the equation that is provided ignores the contribution of dark current. For CCD or CMOS cameras that are cooled well below room temperature, this is not a problem, however, the technique needs adjustment for use with room temperature cameras. This article describes the adjustment made to the equation, and a test of this method.

  5. Tool Improves Electricity Demand Predictions to Make More Room...

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

    Tool Improves Electricity Demand Predictions to Make More Room for Renewables Tool Improves Electricity Demand Predictions to Make More Room for Renewables October 3, 2011 - ...

  6. New Flexible Channels for Room Temperature Tunneling Field Effect...

    Office of Scientific and Technical Information (OSTI)

    New Flexible Channels for Room Temperature Tunneling Field Effect Transistors Citation Details In-Document Search Title: New Flexible Channels for Room Temperature Tunneling Field ...

  7. Method of remotely constructing a room

    DOE Patents [OSTI]

    Michie, J.D.; De Hart, R.C.

    1971-10-05

    The testing of nuclear devices of high explosive yield has required that cavities of relatively large size be provided at considerable distances below the surface of the earth for the pre-detonation emplacement of the device. The construction of an essentially watertight chamber or room in the cavity is generally required for the actual emplacement of the device. A method is described of constructing such a room deep within the earth by personnel at the surface. A dual wall bladder of a watertight, pliable fabric material is lowered down a shaft into a selected position. The bladder is filled with a concrete grout while a heavy fluid having essentially the same density as the grout is maintained on both sides of the bladder, to facilitate complete deployment of the bladder by the grout to form a room of desired configuration. (10 claims)

  8. Method of Remotely Constructing a Room

    DOE Patents [OSTI]

    Michie, J. D.; De Hart, R. C.

    1971-10-05

    The testing of nuclear devices of high explosive yield has required that cavities of relatively large size be provided at considerable distances below the surface of the earth for the pre-detonation emplacement of the device. The construction of an essentially watertight chamber or room in the cavity is generally required for the actual emplacement of the device. A method is described of constructing such a room deep within the earth by personnel at the surface. A dual wall bladder of a watertight, pliable fabric material is lowered down a shaft into a selected position. The bladder is filled with a concrete grout while a heavy fluid having essentially the same density as the grout is maintained on both sides of the bladder, to facilitate complete deployment of the bladder by the grout to form a room of desired configuration. (10 claims)

  9. Control room habitability system review models

    SciTech Connect (OSTI)

    Gilpin, H. )

    1990-12-01

    This report provides a method of calculating control room operator doses from postulated reactor accidents and chemical spills as part of the resolution of TMI Action Plan III.D.3.4. The computer codes contained in this report use source concentrations calculated by either TACT5, FPFP, or EXTRAN, and transport them via user-defined flow rates to the control room envelope. The codes compute doses to six organs from up to 150 radionuclides (or 1 toxic chemical) for time steps as short as one second. Supporting codes written in Clipper assist in data entry and manipulation, and graphically display the results of the FORTRAN calculations. 7 refs., 22 figs.

  10. DOE-ID FOIA Reading Room

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

    Reading Room READING ROOM Eectronic Freedom of Information Act, E-FOIA RECORDS UNDER THE E-FOIA The Electronic Freedom of Information Act Amendments of 1996 addresses the issues and procedural aspects of FOIA administration. The amendment: defines the term "record" as including "any information that would be an agency record subject to the requirements of the FOIA when maintained by an agency in any format, including an electronic format; addresses the form or format in which a

  11. Advanced nuclear plant control room complex

    DOE Patents [OSTI]

    Scarola, Kenneth; Jamison, David S.; Manazir, Richard M.; Rescorl, Robert L.; Harmon, Daryl L.

    1993-01-01

    An advanced control room complex for a nuclear power plant, including a discrete indicator and alarm system (72) which is nuclear qualified for rapid response to changes in plant parameters and a component control system (64) which together provide a discrete monitoring and control capability at a panel (14-22, 26, 28) in the control room (10). A separate data processing system (70), which need not be nuclear qualified, provides integrated and overview information to the control room and to each panel, through CRTs (84) and a large, overhead integrated process status overview board (24). The discrete indicator and alarm system (72) and the data processing system (70) receive inputs from common plant sensors and validate the sensor outputs to arrive at a representative value of the parameter for use by the operator during both normal and accident conditions, thereby avoiding the need for him to assimilate data from each sensor individually. The integrated process status board (24) is at the apex of an information hierarchy that extends through four levels and provides access at each panel to the full display hierarchy. The control room panels are preferably of a modular construction, permitting the definition of inputs and outputs, the man machine interface, and the plant specific algorithms, to proceed in parallel with the fabrication of the panels, the installation of the equipment and the generic testing thereof.

  12. Covered Product Category: Room Air Conditioners

    Broader source: Energy.gov [DOE]

    FEMP provides acquisition guidance across a variety of product categories, including room air conditioners, which are an ENERGY STAR®-qualified product category. Federal laws and requirements mandate that agencies meet these efficiency requirements in all procurement and acquisition actions that are not specifically exempted by law.

  13. Local public document room directory. Revision 7

    SciTech Connect (OSTI)

    1998-04-01

    This directory (NUREG/BR-0088, Revision 7) lists local public document rooms (LPDRs) for commercial nuclear power plants with operating or possession-only licenses or under construction, plus the LPDRs for potential high-level radioactive waste repository sites, gaseous diffusion plants, certain fuel cycle facilities, certain low-level waste disposal facilities, and any temporary LPDRs established for the duration of licensing proceedings. In some instances, the LPDR libraries maintain document collections for more than one licensed facility. The library staff members listed are the persons most familiar with the LPDR collections. Reference librarians in the NRC Headquarters Public Document Room (PDR) are also available to assist the public in locating NRC documents.

  14. Priority coding for control room alarms

    DOE Patents [OSTI]

    Scarola, Kenneth; Jamison, David S.; Manazir, Richard M.; Rescorl, Robert L.; Harmon, Daryl L.

    1994-01-01

    Indicating the priority of a spatially fixed, activated alarm tile on an alarm tile array by a shape coding at the tile, and preferably using the same shape coding wherever the same alarm condition is indicated elsewhere in the control room. The status of an alarm tile can change automatically or by operator acknowledgement, but tones and/or flashing cues continue to provide status information to the operator.

  15. Hydrogen and Fuel Cell Technical Advisory Committee Meeting

    Broader source: Energy.gov [DOE]

    The Hydrogen and Fuel Cell Technical Advisory Committee (HTAC) will hold its next meeting October 27–28, 2015, at the Holiday Inn Capitol in Washington, D.C.

  16. NNMCAB Board Minutes: January 2009 Santa Fe

    Broader source: Energy.gov [DOE]

    Minutes of the January 28, 2009 Board meeting at Holiday Inn Presentation DOE, Implementation on NNMCAB Recommendations, Jeff Casalina Presentation LANL, Well Network Analysis and Characterization of Groundwater at LANL Site, Danny Katzman

  17. NNMCAB Board Minutes: January 2010 Santa Fe

    Broader source: Energy.gov [DOE]

    Minutes of the January 27, 2010 Board meeting at Holiday Inn Presentation LANL, Status of Corrective Actions, Dave McInroy Presentation DOE, Natural Resource Damage Assessment, Nancy Werdel

  18. NNMCAB Board Minutes: November 2009 Santa Fe

    Broader source: Energy.gov [DOE]

    Minutes of the November 18, 2009 Board meeting at Holiday Inn Presentation LANL, Groundwater Monitoring System, Danny Katzman Presentation NNMCAB, Remote Handled 33 Shafts at Area G, Robert Villarreal

  19. Notices

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

    ... July 15, 2015, 6:00 p.m ...... 870 Williston Road, South Burlington, Vermont 05403. Holiday Inn, Rutland, Vermont ...... July 16, 2015, 6:00 p.m ...

  20. Northern New Mexico Citizens Advisory Board Meeting

    Office of Environmental Management (EM)

    bi-monthly meeting of the Northern New Mexico Citizens' Advisory Board (NNMCAB or CAB) meeting was held on September 30, 2009 at the Holiday Inn, 4048 Cerrillos Road Santa...

  1. Agenda

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

    Agenda Agenda ERSUG Meeting July 11-12, 1994 Holiday Inn, Crowne Plaza Rockville, MD The Energy Research Supercomputer Users' Group (ERSUG) will meet at the Holiday Inn, Crowne Plaza in Rockville, MD on July 11-12, 1994. In the past, this meeting has combined presentations describing work-in-progress at NERSC with lively user discussions in the areas of the services and capabilities provided by NERSC. For this particular meeting, however, the focus will change somewhat. First, more emphasis will

  2. Post-Holiday Holiday Shopping | Department of Energy

    Energy Savers [EERE]

    Post Office Building, Rancho Mirage, California Post Office Building, Rancho Mirage, California Photo of Photovoltaic System at Rancho Mirage Post Office in California The U.S. Postal Service (USPS) has been making an effort to add solar power to its offices as part of the Million Solar Roofs Initiative. They have been working with the staff at the National Renewable Energy Laboratory (NREL) to implement energy systems at USPS facilities. NREL assisted the USPS in rehabilitating an inoperable

  3. Room-return scattering in fission neutron outputs (Conference...

    Office of Scientific and Technical Information (OSTI)

    Room-return scattering in fission neutron outputs Citation Details In-Document Search Title: Room-return scattering in fission neutron outputs You are accessing a document from...

  4. proposed designs for surface and subsurface information rooms

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

    Buried Room and Information Center located in middle of the berm Isometric view of the a subsurface room magnets could be used to alert would be intruders Information Center...

  5. Project Reach Completes Photographic Work in Room 7, Panel 7

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

    Photographic Work in Room 7, Panel 7 Photographic work in support of the Accident Investigation Board (AIB) has been completed in Room 7 Panel 7, the location of the February ...

  6. Certification of DOE Reading Rooms | Department of Energy

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

    Certification of DOE Reading Rooms Certification of DOE Reading Rooms Certification of DOE Reading Rooms by Ingrid Kolb, Chief FOIA Officer, October, 17, 2008. PDF icon Certification_of_DOE_Reading_Rooms.pdf More Documents & Publications Memorandum from Secretary Moniz on the Freedom of Information Act (FOIA) Before the Subcommittee on National Parks - Senate Committee on Energy and Natural Resources DRAFT 2012 DOE Project Management Workshop Agenda

  7. Requirements for Control Room Computer-Based Procedures for use in Hybrid Control Rooms

    SciTech Connect (OSTI)

    Le Blanc, Katya Lee; Oxstrand, Johanna Helene; Joe, Jeffrey Clark

    2015-05-01

    Many plants in the U.S. are currently undergoing control room modernization. The main drivers for modernization are the aging and obsolescence of existing equipment, which typically results in a like-for-like replacement of analogue equipment with digital systems. However, the modernization efforts present an opportunity to employ advanced technology that would not only extend the life, but enhance the efficiency and cost competitiveness of nuclear power. Computer-based procedures (CBPs) are one example of near-term advanced technology that may provide enhanced efficiencies above and beyond like for like replacements of analog systems. Researchers in the LWRS program are investigating the benefits of advanced technologies such as CBPs, with the goal of assisting utilities in decision making during modernization projects. This report will describe the existing research on CBPs, discuss the unique issues related to using CBPs in hybrid control rooms (i.e., partially modernized analog control rooms), and define the requirements of CBPs for hybrid control rooms.

  8. Atomically resolved force microscopy at room temperature

    SciTech Connect (OSTI)

    Morita, Seizo

    2014-04-24

    Atomic force microscopy (AFM) can now not only image individual atoms but also construct atom letters using atom manipulation method even at room temperature (RT). Therefore, the AFM is the second generation atomic tool following the scanning tunneling microscopy (STM). However the AFM can image even insulating atoms, and also directly measure/map the atomic force and potential at the atomic scale. Noting these advantages, we have been developing a bottom-up nanostructuring system at RT based on the AFM. It can identify chemical species of individual atoms and then manipulate selected atom species to the predesigned site one-by-one to assemble complex nanostructures consisted of multi atom species at RT. Here we introduce our results toward atom-by-atom assembly of composite nanostructures based on the AFM at RT including the latest result on atom gating of nano-space for atom-by-atom creation of atom clusters at RT for semiconductor surfaces.

  9. Room air monitor for radioactive aerosols

    DOE Patents [OSTI]

    Balmer, D.K.; Tyree, W.H.

    1987-03-23

    A housing assembly for use with a room air monitor for simultaneous collection and counting of suspended particles includes a casing containing a combination detector-preamplifier system at one end, a filter system at the other end, and an air flow system consisting of an air inlet formed in the casing between the detector-preamplifier system and the filter system and an air passageway extending from the air inlet through the casing and out the end opposite the detector-preamplifier combination. The filter system collects suspended particles transported directly through the housing by means of the air flow system, and these particles are detected and examined for radioactivity by the detector-preamplifier combination. 2 figs.

  10. Room air monitor for radioactive aerosols

    DOE Patents [OSTI]

    Balmer, David K.; Tyree, William H.

    1989-04-11

    A housing assembly for use with a room air monitor for simultaneous collection and counting of suspended particles includes a casing containing a combination detector-preamplifier system at one end, a filter system at the other end, and an air flow system consisting of an air inlet formed in the casing between the detector-preamplifier system and the filter system and an air passageway extending from the air inlet through the casing and out the end opposite the detector-preamplifier combination. The filter system collects suspended particles transported directly through the housing by means of the air flow system, and these particles are detected and examined for radioactivity by the detector-pre The U.S. Government has rights in this invention pursuant to Contract No. DE-AC04-76DP03533 between the Department of Energy and Rockwell International Corporation.

  11. Golden Reading Room: Office of Acquisition Documents, Better...

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

    Below are electronic versions of Golden Field Office Reading Room documents that were created after November 1, 1996, per the requirements of the Electronic Freedom of Information ...

  12. Golden Reading Room: Office of Acquisition Documents, Sole of...

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

    Below are electronic versions of Golden Field Office Reading Room documents that were created after November 1, 1996, per the requirements of the Electronic Freedom of Information ...

  13. Golden Reading Room: Office of Acquisition Documents, Small Purchases |

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

    Department of Energy Small Purchases Golden Reading Room: Office of Acquisition Documents, Small Purchases Below are electronic versions of Golden Field Office Reading Room documents that were created after November 1, 1996, per the requirements of the Electronic Freedom of Information Act Amendment of 1996. Most documents are available in Adobe Acrobat Portable Document Format (PDF). Small Purchases

  14. Room temperature ferrimagnetism and ferroelectricity in strained, thin

    Office of Scientific and Technical Information (OSTI)

    films of BiFe 0.5 Mn 0.5 O 3 (Journal Article) | DOE PAGES DOE PAGES Search Results Accepted Manuscript: Room temperature ferrimagnetism and ferroelectricity in strained, thin films of BiFe 0.5 Mn 0.5 O 3 Title: Room temperature ferrimagnetism and ferroelectricity in strained, thin films of BiFe 0.5 Mn 0.5 O 3 Highly strained films of BiFe0.5Mn0.5O₃ (BFMO) grown at very low rates by pulsed laser deposition were demonstrated to exhibit both ferrimagnetism and ferroelectricity at room

  15. WIPP Reaches Milestone „ First Disposal Room Filled

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

    WIPP Reaches Milestone - First Disposal Room Filled CARLSBAD, N.M., September 4, 2001 - The U.S. Department of Energy's (DOE) Carlsbad Field Office today announced that Room 7 of Panel 1 at the Waste Isolation Pilot Plant (WIPP), the first underground room used for disposal operations, has been filled to capacity with transuranic waste. The milestone was reached at about 3:30 p.m. on August 24, as Waste Handling personnel emplaced a shipment of waste from the Idaho National Engineering and

  16. OMEGA EP Control Room - Laboratory for Laser Energetics

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

    Control Room - Laboratory for Laser Energetics Laboratory for Laser Energetics Logo Search Home Around the Lab Past Issues Past Quick Shots About Office of the Director Map to LLE ...

  17. Golden Reading Room: FOIA Requester Service Centers and Public Liaisons |

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

    Department of Energy FOIA Requester Service Centers and Public Liaisons Golden Reading Room: FOIA Requester Service Centers and Public Liaisons U.S. Department of Energy http://energy.gov/management/foia-contacts

  18. Five ENERGY STAR Room Air Conditioners Fail Testing

    Broader source: Energy.gov [DOE]

    The U.S. Department of Energy's Office of Enforcement announced today that DOE testing has identified five Friedrich room air conditioners that do not meet the ENERGY STAR Program’s energy...

  19. Argonne scientists announce first room-temperature magnetic skyrmion...

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

    left to right: Argonne researchers Wanjun Jiang, Suzanne G.E. te Velthuis, and Axel Hoffman published a new way to make magnetic skyrmion bubbles at room temperature. Photo by...

  20. Control and Room Temperature Optimization of Energy Efficient Buildings

    SciTech Connect (OSTI)

    Djouadi, Seddik M; Kuruganti, Phani Teja

    2012-01-01

    The building sector consumes a large part of the energy used in the United States and is responsible for nearly 40% of greenhouse gas emissions. It is therefore economically and environmentally important to reduce the building energy consumption to realize massive energy savings. In this paper, a method to control room temperature in buildings is proposed. The approach is based on a distributed parameter model represented by a three dimensional (3D) heat equation in a room with heater/cooler located at ceiling. The latter is resolved using finite element methods, and results in a model for room temperature with thousands of states. The latter is not amenable to control design. A reduced order model of only few states is then derived using Proper Orthogonal Decomposition (POD). A Linear Quadratic Regulator (LQR) is computed based on the reduced model, and applied to the full order model to control room temperature.

  1. Measurements and computations of room airflow with displacement ventilation

    SciTech Connect (OSTI)

    Yuan, X.; Chen, Q.; Glicksman, L.R.; Hu, Y.; Yang, X.

    1999-07-01

    This paper presents a set of detailed experimental data of room airflow with displacement ventilation. These data were obtained from a new environmental test facility. The measurements were conducted for three typical room configurations: a small office, a large office with partitions, and a classroom. The distributions of air velocity, air velocity fluctuation, and air temperature were measured by omnidirectional hot-sphere anemometers, and contaminant concentrations were measured by tracer gas at 54 points in the rooms. Smoke was used to observe airflow. The data also include the wall surface temperature distribution, air supply parameters, and the age of air at several locations in the rooms. A computational fluid dynamics (CFD) program with the Re-Normalization Group (RNG) {kappa}-{epsilon} model was also used to predict the indoor airflow. The agreement between the computed results and measured data of air temperature and velocity is good. However, some discrepancies exist in the computed and measured concentrations and velocity fluctuation.

  2. Second Panel of Disposal Rooms Completed in WIPP Underground

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

    Second Panel of Disposal Rooms Completed in WIPP Underground CARLSBAD, N.M., October 13, ... Crews working in two shifts completed mining Panel 2 weeks ahead of schedule and under ...

  3. Golden Field Office Reading Room | Department of Energy

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

    Business Operations » Golden Field Office » Golden Field Office Reading Room Golden Field Office Reading Room The Golden Field Office was designated a Department of Energy (DOE) field office in December 1992 to support the development and commercialization of renewable energy and energy-efficient technologies. As a field office within DOE's Energy Efficiency and Renewable Energy Office, Golden's mission is to award grants and manage contracts for clean energy projects, facilitate research and

  4. Golden Reading Room: Environmental Assessments | Department of Energy

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

    Environmental Assessments Golden Reading Room: Environmental Assessments Below are electronic versions of Golden Field Office Reading Room documents that were created after November 1, 1996, per the requirements of the Electronic Freedom of Information Act Amendment of 1996. Most documents are available in Adobe Acrobat Portable Document Format (PDF). DOCUMENTS AVAILABLE FOR DOWNLOAD January 11, 2016 EA-2020: Draft Environmental Assessment Energy Efficiency Standards for New Federal Low-Rise

  5. Golden Reading Room: FINAL Environmental Impact Statements | Department of

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

    Energy FINAL Environmental Impact Statements Golden Reading Room: FINAL Environmental Impact Statements Below are electronic versions of Golden Field Office Reading Room documents that were created after November 1, 1996, per the requirements of the Electronic Freedom of Information Act Amendment of 1996. Most documents are available in Adobe Acrobat Portable Document Format (PDF). Final Environmental Impact Statement for the Proposed Abengoa Biorefinery Project, Hugoton, Stevens County,

  6. Golden Reading Room: FOIA Frequently Requested Documents | Department of

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

    Energy Frequently Requested Documents Golden Reading Room: FOIA Frequently Requested Documents Below are electronic versions of Golden Field Office Reading Room documents that were created after November 1, 1996, per the requirements of the Electronic Freedom of Information Act Amendment of 1996. Most documents are available in Adobe Acrobat Portable Document Format (PDF). DE-EE0002884 Sapphire Energy GO-12-043 Redacted Sapphire FOIA DE-EE0002877 Recovery Act Definitized Subcontract No.

  7. Golden Reading Room: FOIA Proactive Disclosures and Contracts | Department

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

    of Energy Proactive Disclosures and Contracts Golden Reading Room: FOIA Proactive Disclosures and Contracts Below are electronic versions of Golden Field Office Reading Room documents that were created after November 1, 1996, per the requirements of the Electronic Freedom of Information Act Amendment of 1996. Most documents are available in Adobe Acrobat Portable Document Format (PDF). 2013 Solar Decathlon Information Click on this link for updates: Solar Decathlon Information. Alliance for

  8. Golden Reading Room: Office of Acquisition Documents, Better Buildings

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

    Initiative Support Services | Department of Energy Better Buildings Initiative Support Services Golden Reading Room: Office of Acquisition Documents, Better Buildings Initiative Support Services Below are electronic versions of Golden Field Office Reading Room documents that were created after November 1, 1996, per the requirements of the Electronic Freedom of Information Act Amendment of 1996. Most documents are available in Adobe Acrobat Portable Document Format (PDF). DE-SOL-0005538

  9. Golden Reading Room: Office of Acquisition Documents, Sole of Limited

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

    Source Justifications | Department of Energy Sole of Limited Source Justifications Golden Reading Room: Office of Acquisition Documents, Sole of Limited Source Justifications Below are electronic versions of Golden Field Office Reading Room documents that were created after November 1, 1996, per the requirements of the Electronic Freedom of Information Act Amendment of 1996. Most documents are available in Adobe Acrobat Portable Document Format (PDF). Sole of Limited Source Justificati

  10. Neutron absorbing room temperature vulcanizable silicone rubber compositions

    DOE Patents [OSTI]

    Zoch, Harold L.

    1979-11-27

    A neutron absorbing composition comprising a one-component room temperature vulcanizable silicone rubber composition or a two-component room temperature vulcanizable silicone rubber composition in which the composition contains from 25 to 300 parts by weight based on the base silanol or vinyl containing diorganopolysiloxane polymer of a boron compound or boron powder as the neutron absorbing ingredient. An especially useful boron compound in this application is boron carbide.

  11. Variable Speed Fan Retrofits for Computer Room Air Conditioners |

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

    Department of Energy Variable Speed Fan Retrofits for Computer Room Air Conditioners Variable Speed Fan Retrofits for Computer Room Air Conditioners Case study describes various concepts for more cost-effective cooling solutions in data centers, while keeping in mind that the reliability of computing systems and their respective cooling systems is always a key criterion. PDF icon dc_fancasestudy.pdf More Documents & Publications Wireless Sensors Improve Data Center Efficiency NSIDC Data

  12. Golden Reading Room: NREL Environmental and NEPA Documents | Department of

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

    Energy NREL Environmental and NEPA Documents Golden Reading Room: NREL Environmental and NEPA Documents Below are electronic versions of Golden Field Office Reading Room documents that were created after November 1, 1996, per the requirements of the Electronic Freedom of Information Act Amendment of 1996. Most documents are available in Adobe Acrobat Portable Document Format (PDF). NREL Annual Environmental Performance Reports (Annual Site Environmental Reports) Every year NREL prepares an

  13. Golden Reading Room: Other NREL Documents | Department of Energy

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

    Other NREL Documents Golden Reading Room: Other NREL Documents Below are electronic versions of Golden Field Office Reading Room documents that were created after November 1, 1996, per the requirements of the Electronic Freedom of Information Act Amendment of 1996. Most documents are available in Adobe Acrobat Portable Document Format (PDF). National Renewable Energy Laboratory 10 Year Site Plan FY 2007 - FY 2018 Director's Discretionary Research and Development Program, Annual Report FY 2007

  14. Dorm Room Idea Now Revolutionizing Energy | Department of Energy

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

    Dorm Room Idea Now Revolutionizing Energy Dorm Room Idea Now Revolutionizing Energy April 16, 2010 - 11:07am Addthis Joshua DeLung What does this project do? Princeton Power Systems is currently installing a 200-kW solar array and advanced battery system on company grounds to provide clean power to its building and to showcase advancements in renewable energy technology to businesses, municipalities and utilities that may be curious about renewable energy projects. While many college students

  15. DOE-ID FOIA Electronic Reading Room Documents

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

    Electronic Reading Room Documents Electronic Reading Room Documents The information contained here represents DOE-ID's responses to FOIA requests that have been or are likely to be of broad public interest, as stipulated under the Electronic Freedom of Information Act Amendments of 1996. As required by the Act, documents created after November 1997, which meet the criteria for electronic presentation, will be made available here. Other documents requested under the FOIA will also be made

  16. Using a Research Simulator for Validating Control Room Modernization Concepts

    SciTech Connect (OSTI)

    Ronald L. Boring; Vivek Agarwal; Julius J. Persensky; Jeffrey C. Joe

    2012-05-01

    The Light Water Reactor Sustainability Program is a research, development, and deployment program sponsored by the United States Department of Energy. The program is operated in close collaboration with industry research and development programs to provide the technical foundations for licensing and managing the long-term, safe, and economical operation of nuclear power plants that are currently in operation. Advanced instrumentation and control (I&C) technologies are needed to support the continued safe and reliable production of power from nuclear energy systems during sustained periods of operation up to and beyond their expected licensed lifetime. This requires that new capabilities to achieve process control be developed and eventually implemented in existing nuclear control rooms. It also requires that approaches be developed and proven to achieve sustainability of I&C systems throughout the period of extended operation. Idaho National Laboratory (INL) is working closely with nuclear utilities to develop technologies and solutions to help ensure the safe life extension of current reactors. One of the main areas of focus is control room modernization. Current analog control rooms are growing obsolete, and it is difficult for utilities to maintain them. Using its reconfigurable control room simulator adapted from a training simulator, INL serves as a neutral test bed for implementing new control room system technologies and assisting in control room modernization efforts across.

  17. Control Room operations: an investigation of the task of the operator in a Colliery Control Room. Final report

    SciTech Connect (OSTI)

    Simpson, G.C.; Best, C.F.; Ferguson, C.A.; Graveling, R.A.; Nicholl, A.G.M.

    1982-09-01

    A detailed study of the ergonomics aspects of four representative Colliery Control Rooms was carried out. Numerous ergonomics limitations, many common to each of the control rooms studied, were identified particularly in relation to workspace dimensions, console layout and lighting. In order to overcome these limitations in future designs, a report detailing the Ergonomics Principles of Colliery Control Room design and Layout was prepared on the basis of the information obtained. Task analysis carried out during the studies revealed that control room operators could have a direct effect on production and that ergonomics aspects were involved in these situations. Indications of potential ergonomics problems in the wider sphere of job design were also identified particularly in relation to information handling.

  18. Energy Efficiency in Small Server Rooms: Field Surveys and Findings

    SciTech Connect (OSTI)

    Cheung, Iris; Greenberg, Steve; Mahdavi, Roozbeh; Brown, Richard; Tschudi, William

    2014-08-11

    Fifty-seven percent of US servers are housed in server closets, server rooms, and localized data centers, in what are commonly referred to as small server rooms, which comprise 99percent of all server spaces in the US. While many mid-tier and enterprise-class data centers are owned by large corporations that consider energy efficiency a goal to minimize business operating costs, small server rooms typically are not similarly motivated. They are characterized by decentralized ownership and management and come in many configurations, which creates a unique set of efficiency challenges. To develop energy efficiency strategies for these spaces, we surveyed 30 small server rooms across eight institutions, and selected four of them for detailed assessments. The four rooms had Power Usage Effectiveness (PUE) values ranging from 1.5 to 2.1. Energy saving opportunities ranged from no- to low-cost measures such as raising cooling set points and better airflow management, to more involved but cost-effective measures including server consolidation and virtualization, and dedicated cooling with economizers. We found that inefficiencies mainly resulted from organizational rather than technical issues. Because of the inherent space and resource limitations, the most effective measure is to operate servers through energy-efficient cloud-based services or well-managed larger data centers, rather than server rooms. Backup power requirement, and IT and cooling efficiency should be evaluated to minimize energy waste in the server space. Utility programs are instrumental in raising awareness and spreading technical knowledge on server operation, and the implementation of energy efficiency measures in small server rooms.

  19. Room temperature ferrimagnetism and ferroelectricity in strained, thin

    Office of Scientific and Technical Information (OSTI)

    films of BiFe 0.5 Mn 0.5 O 3 (Journal Article) | SciTech Connect SciTech Connect Search Results Journal Article: Room temperature ferrimagnetism and ferroelectricity in strained, thin films of BiFe 0.5 Mn 0.5 O 3 Citation Details In-Document Search Title: Room temperature ferrimagnetism and ferroelectricity in strained, thin films of BiFe 0.5 Mn 0.5 O 3 Highly strained films of BiFe0.5Mn0.5O₃ (BFMO) grown at very low rates by pulsed laser deposition were demonstrated to exhibit both

  20. Time dependent deformation of metals at room temperature. (Conference) |

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Time dependent deformation of metals at room temperature. Citation Details In-Document Search Title: Time dependent deformation of metals at room temperature. Abstract not provided. Authors: Deibler, Lisa Anne ; Boyce, Brad Lee ; Puskar, Joseph D. Publication Date: 2013-08-01 OSTI Identifier: 1107903 Report Number(s): SAND2013-7101C 470009 DOE Contract Number: AC04-94AL85000 Resource Type: Conference Resource Relation: Conference: JOWOG 28 Main Meeting held September 9-12,

  1. Information Foraging in Nuclear Power Plant Control Rooms

    SciTech Connect (OSTI)

    R.L. Boring

    2011-09-01

    nformation foraging theory articulates the role of the human as an 'informavore' that seeks information and follows optimal foraging strategies (i.e., the 'information scent') to find meaningful information. This paper briefly reviews the findings from information foraging theory outside the nuclear domain and then discusses the types of information foraging strategies operators employ for normal and off-normal operations in the control room. For example, operators may employ a predatory 'wolf' strategy of hunting for information in the face of a plant upset. However, during routine operations, the operators may employ a trapping 'spider' strategy of waiting for relevant indicators to appear. This delineation corresponds to information pull and push strategies, respectively. No studies have been conducted to determine explicitly the characteristics of a control room interface that is optimized for both push and pull information foraging strategies, nor has there been empirical work to validate operator performance when transitioning between push and pull strategies. This paper explores examples of control room operators as wolves vs. spiders and con- cludes by proposing a set of research questions to investigate information foraging in control room settings.

  2. Center for Nanophase Materials Sciences - Newsletter

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

    alcohol-free facility. The Guest House is a 3 floor, 47 room, 71 bed inn (23 rooms with King beds and 24 rooms with 2 ex-long double beds). All rooms have a mini fridge and...

  3. Room-temperature magnetoelectric multiferroic thin films and applications thereof

    DOE Patents [OSTI]

    Katiyar, Ram S; Kuman, Ashok; Scott, James F.

    2014-08-12

    The invention provides a novel class of room-temperature, single-phase, magnetoelectric multiferroic (PbFe.sub.0.67W.sub.0.33O.sub.3).sub.x (PbZr.sub.0.53Ti.sub.0.47O.sub.3).sub.1-x (0.2.ltoreq.x.ltoreq.0.8) (PFW.sub.x-PZT.sub.1-x) thin films that exhibit high dielectric constants, high polarization, weak saturation magnetization, broad dielectric temperature peak, high-frequency dispersion, low dielectric loss and low leakage current. These properties render them to be suitable candidates for room-temperature multiferroic devices. Methods of preparation are also provided.

  4. Operator experiences on working in screen-based control rooms

    SciTech Connect (OSTI)

    Salo, L.; Laarni, J.; Savioja, P.

    2006-07-01

    This paper introduces the results of two interview studies carried out in Finland in four conventional power plants and one nuclear power plant. The aim of the studies was to gather data on user experiences on the effects of control room modernization and digital control room technology on operator work Since the number of completed digitalization projects in nuclear power plants is small supplementary information was gathered by interviewing operators in conventional power plants. Our results suggest that even though the modernization processes have been success stories, they have created new challenges for operator personnel. Examples of these challenges are increased requirements for competence and collaboration, problems in trust calibration and development of awareness of the process state. Some major differences in the digitalization of human-system interfaces between conventional and nuclear power plants were discussed. (authors)

  5. A computerized main control room for NPP: Development and investigation

    SciTech Connect (OSTI)

    Anokhin, A. N.; Marshall, E. C.; Rakitin, I. D.; Slonimsky, V. M.

    2006-07-01

    An ergonomics assessment of the control room at Leningrad Nuclear Power Plant has been undertaken as part of an international project funded by the EU TACIS program. The project was focused on the upgrading of the existing control facilities and the installation of a validation facility to evaluate candidate refurbishment proposals before their implementation at the plant. The ergonomics methodology applied in the investigation was wide ranging and included an analysis of reported events, extensive task analysis (including novel techniques) and validation studies using experienced operators. The paper addresses the potential difficulties for the human operator associated with fully computerized interfaces and shows how the validation facility and the outcomes from ergonomics assessment will be used to minimise any adverse impact on performance that may be caused by proposed control room changes. (authors)

  6. Golden Reading Room: NEPA Categorical Exclusions | Department of Energy

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

    NEPA Categorical Exclusions Golden Reading Room: NEPA Categorical Exclusions Categorical Exclusion Determinations issued by Golden Field Office. DOCUMENTS AVAILABLE FOR DOWNLOAD May 10, 2016 CX-100608 Categorical Exclusion Determination Supplemental Notice of Proposed Rulemaking (SNOPR) for Energy Conservation Standards for Residential Conventional Cooking Products RIN 1904-AD15 CX(s) Applied: B5.1 EERE-Buildings Technology Program Date: 05/10/2016 Location(s): Nationwide Office(s): Golden Field

  7. The selection of turbulence models for prediction of room airflow

    SciTech Connect (OSTI)

    Nielsen, P.V.

    1998-10-01

    The airflow in buildings involves a combination of many different flow elements. It is, therefore, difficult to find an adequate, all-round turbulence model covering all aspects. Consequently, it is appropriate and economical to choose turbulence models according to the situation that is to be predicted. This paper discusses the use of different turbulence models and their advantages in given situations. As an example, it is shown that a simple zero-equation model can be used for the prediction of special situations as flow with a low level of turbulence. A zero-equation model with compensation for room dimensions and velocity level also is discussed. A {kappa}-{epsilon} model expanded by damping functions is used to improve the prediction of the flow in a room ventilated by displacement ventilation. The damping functions especially take into account the turbulence level and the vertical temperature gradient. Low Reynolds number models (LNR models) are used to improve the prediction of evaporation-controlled emissions from building material, which is shown by an example. Finally, large eddy simulation (LES) of room airflow is discussed and demonstrated.

  8. FRAMEWORK AND APPLICATION FOR MODELING CONTROL ROOM CREW PERFORMANCE AT NUCLEAR POWER PLANTS

    SciTech Connect (OSTI)

    Ronald L Boring; David I Gertman; Tuan Q Tran; Brian F Gore

    2008-09-01

    This paper summarizes an emerging project regarding the utilization of high-fidelity MIDAS simulations for visualizing and modeling control room crew performance at nuclear power plants. The key envisioned uses for MIDAS-based control room simulations are: (i) the estimation of human error associated with advanced control room equipment and configurations, (ii) the investigative determination of contributory cognitive factors for risk significant scenarios involving control room operating crews, and (iii) the certification of reduced staffing levels in advanced control rooms. It is proposed that MIDAS serves as a key component for the effective modeling of cognition, elements of situation awareness, and risk associated with human performance in next generation control rooms.

  9. Verification and Validation of Digitally Upgraded Control Rooms

    SciTech Connect (OSTI)

    Boring, Ronald; Lau, Nathan

    2015-09-01

    As nuclear power plants undertake main control room modernization, a challenge is the lack of a clearly defined human factors process to follow. Verification and validation (V&V) as applied in the nuclear power community has tended to involve efforts such as integrated system validation, which comes at the tail end of the design stage. To fill in guidance gaps and create a step-by-step process for control room modernization, we have developed the Guideline for Operational Nuclear Usability and Knowledge Elicitation (GONUKE). This approach builds on best practices in the software industry, which prescribe an iterative user-centered approach featuring multiple cycles of design and evaluation. Nuclear regulatory guidance for control room design emphasizes summative evaluation—which occurs after the design is complete. In the GONUKE approach, evaluation is also performed at the formative stage of design—early in the design cycle using mockups and prototypes for evaluation. The evaluation may involve expert review (e.g., software heuristic evaluation at the formative stage and design verification against human factors standards like NUREG-0700 at the summative stage). The evaluation may also involve user testing (e.g., usability testing at the formative stage and integrated system validation at the summative stage). An additional, often overlooked component of evaluation is knowledge elicitation, which captures operator insights into the system. In this report we outline these evaluation types across design phases that support the overall modernization process. The objective is to provide industry-suitable guidance for steps to be taken in support of the design and evaluation of a new human-machine interface (HMI) in the control room. We suggest the value of early-stage V&V and highlight how this early-stage V&V can help improve the design process for control room modernization. We argue that there is a need to overcome two shortcomings of V&V in current practice—the propensity for late-stage V&V and the use of increasingly complex psychological assessment measures for V&V.

  10. Oak Ridge Site Specific Advisory Board

    Office of Environmental Management (EM)

    3 Annual Meeting Oak Ridge Site Specific Advisory Board Saturday, August 17, 2013, 8 a.m. to noon Holiday Inn, Pigeon Forge, Tenn. The Oak Ridge Site Specific Advisory Board (ORSSAB) met for its annual planning meeting beginning at 8 a.m., on Saturday, August 17, 2013, at the Holiday Inn, 3230 Parkway, Pigeon Forge, Tenn. The objectives of the meeting were to: * Develop an increased understanding of and commitment to the goals of the board * Evaluate the effectiveness and achievements of the

  11. Relevant Links

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

    Relevant Links **Light Source Facilities Around the World** Advanced Materials Research Institiute(AMRI), UNO Area Hotels Chase Suite Hotel Baton Rouge Extended Stay America Holiday Inn South Baton Rouge Marriott Residence Inns Wyndham Garden Gulf Coast Protein Crystallography Consortium Health Physics Society Institute for Micromanufacturing, LA Tech University Interactions.org - Particle Physics News and Resources International Nuclear Information System (INIS) Light Sources.org The Louisiana

  12. Room temperature ferromagnetism in conducting α-(In{sub 1-x...

    Office of Scientific and Technical Information (OSTI)

    Room temperature ferromagnetism in conducting -(Insub 1-xFesub x)sub 2Osub 3 alloy films Citation Details In-Document Search Title: Room temperature ferromagnetism in ...

  13. Save Money with LED Holiday Light Strings

    Broader source: Energy.gov [DOE]

    LED (or light emitting diode) light strings can use 90% less energy than regular incandescent light strings. They also last about ten times longer, are cooler than incandescents (reducing fire hazards), and are more durable.

  14. Today LED Holiday Lights, Tomorrow the World?

    SciTech Connect (OSTI)

    Gordon, Kelly L.

    2004-12-20

    This article for The APEM Advantage, the quarterly newsletter of the Association of Professional Energy Managers (APEM) describes the recent increase in the popularity of light emitting diode (LED) lighting and compares LED light output with that of incandescent and compact fluorescent lighting.

  15. Fourth Friday Cancelled due to Thanksgiving Holidays

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

    open late until 6:00 PM offering access to exhibits and special activities for all ages, however it will not take place on Friday, November 27 due to the Thanksgiving...

  16. Fourth Friday Cancelled due to Thanksgiving Holidays

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

    Fourth Chapter of Hanford Story Released to Public Fourth Chapter of Hanford Story Released to Public February 15, 2012 - 12:00pm Addthis Carrie Meyer, DOE, (509) 372-0810 RICHLAND, Wash. - The Department of Energy is releasing the fourth chapter of The Hanford Story today to the public. "Tank Waste Cleanup" focuses on the work conducted by the Office of River Protection to retrieve, treat and ultimately dispose of the 56 million gallons of Hanford's tank waste. The video describes the

  17. DOE Reaches $1.5M Settlement with Room Air Conditioner Manufacturer |

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

    Department of Energy $1.5M Settlement with Room Air Conditioner Manufacturer DOE Reaches $1.5M Settlement with Room Air Conditioner Manufacturer October 27, 2015 - 5:48pm Addthis The General Counsel's enforcement office settled an enforcement action against Friedrich Air Conditioning Company for $1,494,626.25, for the distribution of room air conditioners that failed to meet federal minimum standards for energy efficiency. Room air conditioners must meet minimum efficiency standards to be

  18. Golden Reading Room: Freedom of Information Act (FOIA) | Department of

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

    Energy Freedom of Information Act (FOIA) Golden Reading Room: Freedom of Information Act (FOIA) The Golden FOIA Office exists to execute the legal requirements of the Freedom of Information Act (5 U.S.C. § 552(a)(3)(A) (2006), amended by OPEN Government Act of 2007, Pub. L. No. 110175, 121 Stat. 2524). Enacted on July 4, 1966, and taking effect on one year later, the Freedom of Information Act provides that any person has a right, enforceable in court, to obtain access to federal agency

  19. Guest Room Lighting at the Hilton Columbus Downtown

    SciTech Connect (OSTI)

    2014-06-30

    At the Hilton Columbus Downtown hotel in Ohio, DOE's Better Buildings Alliance conducted a demonstration of Next Generation Luminaires-winning downlights installed in all guest rooms and suites prior to the hotel's 2012 opening. After a post-occupancy assessment, the LED downlights not only provided the aesthetic appearance and dimming functionality desired, but also provided 50% energy savings relative to a comparable CFL downlight and enabled the lighting power to be more than 20% below that allowed by code. This document is a summary case study of the report.

  20. Notices Ave. SW., Room 3E207, Washington, DC

    Energy Savers [EERE]

    5295 Federal Register / Vol. 81, No. 55 / Tuesday, March 22, 2016 / Notices Ave. SW., Room 3E207, Washington, DC 20202. Telephone: (202) 453-6891 or by email: ddra@ed.gov. If you use a TDD or a TTY, call the FRS, toll free, at 1-800-877-8339. If you request an application from ED Pubs, be sure to identify this program as follows: CFDA number 84.022A. VIII. Other Information Accessible Format: Individuals with disabilities can obtain this document and a copy of the application package in an

  1. Hanford workers begin cleaning out historic McCluskey Room | Department of

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

    Energy Hanford workers begin cleaning out historic McCluskey Room Hanford workers begin cleaning out historic McCluskey Room Addthis Description Workers have entered one of the most hazardous rooms at the Hanford Site in Washington state to begin final cleanup of a room that became known to workers over the years by the name of a worker injured there in a Cold War-era accident. The first reentry on Monday, September 8, 2014, consisted mostly surveying the room. More information:

  2. Microsoft Word - cf16-la-hotel-Info.docx

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

    Macintosh HD:Users:rebecca_j:Desktop:cf16-la-hotel-Info.docx Accommodations Info in Los Alamos There are many wonderful places to stay in Santa Fe as well as the surrounding areas but the following is a list of hotels in Los Alamos: Comfort Inn 2455 Trinity Dr. Los Alamos, NM 87544 505-661-1110 800-992-2694 Hampton Inn & Suites 124 State Rd. 4 Los Alamos, NM 87544 505-672-3838 Holiday Inn Express at Entrada Park 60 Entrada Dr. Los Alamos, NM 87544 505-661-2646 Motel 6 2175 Trinity Dr. Los

  3. Distribution and Room Air Mixing Risks to Retrofitted Homes

    SciTech Connect (OSTI)

    Burdick, A.

    2014-12-01

    ​Energy efficiency upgrades reduce heating and cooling loads on a house. With enough load reduction and if the HVAC system warrants replacement, the HVAC system is often upgraded with a more efficient, lower capacity system that meets the loads of the upgraded house. For a single-story house with ceiling supply air diffusers, ducts are often removed and upgraded. For houses with ducts that are embedded in walls, the cost of demolition precludes the replacement of ducts. The challenge with the use of existing ducts is that the reduced airflow creates a decreased throw at the supply registers, and the supply air and room air do not mix well, leading to potential thermal comfort complaints. This project investigates this retrofit scenario. The issues and solutions discussed here are relevant to all climate zones, with emphasis on climates that require cooling.

  4. Subsidence vulnerability in shallow room-and-pillar mines

    SciTech Connect (OSTI)

    Missavage, R.

    1985-07-01

    Concern over mining-related subsidence is inhibiting the development of surface land uses in previously mined areas and is constraining the recovery of coal resources in areas with established land uses that might be impacted by subsequent subsidence. The determination of subsidence vulnerability of mined-out areas (especially abandoned mine areas) can be a useful tool in the design and location of surface structures. A model has been developed for assessing subsidence vulnerability in shallow room-and-pillar mines based on the flexural rigidity and strength characteristics of the overlying strata. The model does not predict the subsidence profile or when the subsidence will occur. It only predicts those areas that are likely to subside. This paper briefly describes the model and its testing.

  5. Distribution and Room Air Mixing Risks to Retrofitted Homes

    SciTech Connect (OSTI)

    Burdick, A.

    2014-12-01

    ?Energy efficiency upgrades reduce heating and cooling loads on a house. With enough load reduction and if the HVAC system warrants replacement, the HVAC system is often upgraded with a more efficient, lower capacity system that meets the loads of the upgraded house. For a single-story house with ceiling supply air diffusers, ducts are often removed and upgraded. For houses with ducts that are embedded in walls, the cost of demolition precludes the replacement of ducts. The challenge with the use of existing ducts is that the reduced airflow creates a decreased throw at the supply registers, and the supply air and room air do not mix well, leading to potential thermal comfort complaints. This project investigates this retrofit scenario. The issues and solutions discussed here are relevant to all climate zones, with emphasis on climates that require cooling.

  6. Current Approaches for Control Room I and C Modernization

    SciTech Connect (OSTI)

    Lopez, Alberto; Jimenez, Alfonso

    2002-07-01

    In general, instrumentation and control (I and C) systems for nuclear power plants were made using analogic systems and relays, since this was the only technology available by the time these systems were designed. This fact impacts on the operational and maintenance capabilities required to these systems. For this reason, nuclear power plants are facing nowadays two challenges: on one hand, the obsolescence of these systems contributes to the increase in the operation and maintenance costs - due to the difficulties for getting spare parts and support from the system vendors -. On the other hand, there has been an increase in the utilities competitiveness due to the electric power market liberalization. All this, of course, along with the commitment to maintain the current safety levels and meet the new requirements and standards that may arise in the near future. The application of current technologies, especially digital technology, solves the obsolescence problems and allows for a more functional and updated human-machine interface. Nevertheless, the cost associated to these modifications makes it necessary to develop strategies to determine which systems need to be modified and how to implement modifications effectively, so that these systems can work jointly with others using different technologies. Other issues inherent to digital technology must be considered, such as verification and validation of the software and of the human-machine interface, which are required for its licensing. This presentation describes the current approaches for I and C modernization, the main reasons, technologies and implementation plans, focusing on the control room and on the impact on operations. The main issues to be considered for developing a specific modernization plan are analysed. The goals and status of the 'Feasibility Study of the Control Room I and C Modernization' are described. This study is currently being developed by Endesa, Iberdrola and Tecnatom, and is included within the PROFIT program (Programa Nacional de Fomento de la Investigacion Tecnica). Vandellos 2 NPP is the pilot plant. (authors)

  7. ISSUANCE 2015-06-09: Energy Conservation Program: Energy Conservation Standards for Room Air Conditioners; Request for Information

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Energy Conservation Standards for Room Air Conditioners; Request for Information

  8. Room-temperature lithium metal battery closer to reality > EMC2...

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

    Room-temperature lithium metal battery closer to reality February 3rd, 2016 By Tom ... Rechargeable lithium metal batteries have been known for four decades to offer energy ...

  9. System and method for the identification of radiation in contaminated rooms

    DOE Patents [OSTI]

    Coleman, Jody Rustyn; Farfan, Eduardo B.

    2015-09-29

    Devices and methods for the characterization of areas of radiation in contaminated rooms are provided. One such device is a collimator with a collimator shield for reducing noise when measuring radiation. A position determination system is provided that may be used for obtaining position and orientation information of the detector in the contaminated room. A radiation analysis method is included that is capable of determining the amount of radiation intensity present at known locations within the contaminated room. Also, a visual illustration system is provided that may project images onto the physical objects, which may be walls, of the contaminated room in order to identify the location of radioactive materials for decontamination.

  10. Room temperature single-photon detectors for high bit rate quantum key distribution

    SciTech Connect (OSTI)

    Comandar, L. C.; Patel, K. A.; Frhlich, B. Lucamarini, M.; Sharpe, A. W.; Dynes, J. F.; Yuan, Z. L.; Shields, A. J.; Penty, R. V.

    2014-01-13

    We report room temperature operation of telecom wavelength single-photon detectors for high bit rate quantum key distribution (QKD). Room temperature operation is achieved using InGaAs avalanche photodiodes integrated with electronics based on the self-differencing technique that increases avalanche discrimination sensitivity. Despite using room temperature detectors, we demonstrate QKD with record secure bit rates over a range of fiber lengths (e.g., 1.26 Mbit/s over 50?km). Furthermore, our results indicate that operating the detectors at room temperature increases the secure bit rate for short distances.

  11. Electrodrift purification of materials for room temperature radiation detectors

    DOE Patents [OSTI]

    James, Ralph B.; Van Scyoc, III, John M.; Schlesinger, Tuviah E.

    1997-06-24

    A method of purifying nonmetallic, crystalline semiconducting materials useful for room temperature radiation detecting devices by applying an electric field across the material. The present invention discloses a simple technology for producing purified ionic semiconducting materials, in particular PbI.sub.2 and preferably HgI.sub.2, which produces high yields of purified product, requires minimal handling of the material thereby reducing the possibility of introducing or reintroducing impurities into the material, is easy to control, is highly selective for impurities, retains the stoichiometry of the material and employs neither high temperatures nor hazardous materials such as solvents or liquid metals. An electric field is applied to a bulk sample of the material causing impurities present in the sample to drift in a preferred direction. After all of the impurities have been transported to the ends of the sample the current flowing through the sample, a measure of the rate of transport of mobile impurities, falls to a low, steady state value, at which time the end sections of the sample where the impurities have concentrated are removed leaving a bulk sample of higher purity material. Because the method disclosed here only acts on the electrically active impurities, the stoichiometry of the host material remains substantially unaffected.

  12. Cross-linking of polytetrafluoroethylene during room-temperature irradiation

    SciTech Connect (OSTI)

    Pugmire, David L; Wetteland, Chris J; Duncan, Wanda S; Lakis, Rollin E; Schwartz, Daniel S

    2008-01-01

    Exposure of polytetrafluoroethylene (PTFE) to {alpha}-radiation was investigated to detennine the physical and chemical effects, as well as to compare and contrast the damage mechanisms with other radiation types ({beta}, {gamma}, or thermal neutron). A number of techniques were used to investigate the chemical and physical changes in PTFE after exposure to {alpha}-radiation. These techniques include: Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), and fluorescence spectroscopy. Similar to other radiation types at low doses, the primary damage mechanism for the exposure of PTFE to {alpha}-radiation appears to be chain scission. Increased doses result in a change-over of the damage mechanism to cross-linking. This result is not observed for any radiation type other than {alpha} when irradiation is performed at room temperature. Finally, at high doses, PTFE undergoes mass-loss (via smallfluorocarbon species evolution) and defluorination. The amount and type of damage versus sample depth was also investigated. Other types of radiation yield damage at depths on the order of mm to cm into PTFE due to low linear energy transfer (LET) and the correspondingly large penetration depths. By contrast, the {alpha}-radiation employed in this study was shown to only induce damage to a depth of approximately 26 {mu}m, except at very high doses.

  13. New Flexible Channels for Room Temperature Tunneling Field Effect Transistors

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

    Hao, Boyi; Asthana, Anjana; Hazaveh, Paniz Khanmohammadi; Bergstrom, Paul L.; Banyai, Douglas; Savaikar, Madhusudan A.; Jaszczak, John A.; Yap, Yoke Khin

    2016-02-05

    Tunneling field effect transistors (TFETs) have been proposed to overcome the fundamental issues of Si based transistors, such as short channel effect, finite leakage current, and high contact resistance. Unfortunately, most if not all TFETs are operational only at cryogenic temperatures. Here we report that iron (Fe) quantum dots functionalized boron nitride nanotubes (QDs-BNNTs) can be used as the flexible tunneling channels of TFETs at room temperatures. The electrical insulating BNNTs are used as the one-dimensional (1D) substrates to confine the uniform formation of Fe QDs on their surface as the flexible tunneling channel. Consistent semiconductor-like transport behaviors under variousmore » bending conditions are detected by scanning tunneling spectroscopy in a transmission electron microscopy system (insitu STM-TEM). Ultimately, as suggested by computer simulation, the uniform distribution of Fe QDs enable an averaging effect on the possible electron tunneling pathways, which is responsible for the consistent transport properties that are not sensitive to bending.« less

  14. Stability analysis of a backfilled room-and-pillar mine

    SciTech Connect (OSTI)

    Tesarik, D.R.; Seymour, J.B.; Yanske, T.R.; McKibbin, R.W.

    1995-12-31

    Displacement and stress changes in cemented backfill and ore pillars at the Buick Mine, near Boss, MO, were monitored by engineers from the US Bureau of Mines and The Doe Run Co., St. Louis, MO. A test area in this room-and-pillar mine was backfilled to provide support when remnant ore pillars were mined. Objectives of this research were to evaluate the effect of backfill on mine stability, observe backfill conditions during pillar removal, and calibrate a numerical model to be used to design other areas of the mine. Relative vertical displacements in the backfill were measured with embedment strain gauges and vertical extensometers. Other types of instruments used were earth pressure cells (to identify loading trends in the backfill), borehole extensometers (to measure relative displacement changes in the mine roof and support pillars), and biaxial stressmeters (to measure stress changes in several support pillars and abutments). Two- and three-dimensional numeric codes were used to model the study area. With information from these codes and the installed instruments, two failed pillars were identified and rock mass properties were estimated.

  15. Electrodrift purification of materials for room temperature radiation detectors

    DOE Patents [OSTI]

    James, R.B.; Van Scyoc, J.M. III; Schlesinger, T.E.

    1997-06-24

    A method of purifying nonmetallic, crystalline semiconducting materials useful for room temperature radiation detecting devices by applying an electric field across the material is disclosed. The present invention discloses a simple technology for producing purified ionic semiconducting materials, in particular PbI{sub 2} and preferably HgI{sub 2}, which produces high yields of purified product, requires minimal handling of the material thereby reducing the possibility of introducing or reintroducing impurities into the material, is easy to control, is highly selective for impurities, retains the stoichiometry of the material and employs neither high temperatures nor hazardous materials such as solvents or liquid metals. An electric field is applied to a bulk sample of the material causing impurities present in the sample to drift in a preferred direction. After all of the impurities have been transported to the ends of the sample the current flowing through the sample, a measure of the rate of transport of mobile impurities, falls to a low, steady state value, at which time the end sections of the sample where the impurities have concentrated are removed leaving a bulk sample of higher purity material. Because the method disclosed here only acts on the electrically active impurities, the stoichiometry of the host material remains substantially unaffected. 4 figs.

  16. Robust isothermal electric control of exchange bias at room temperature

    SciTech Connect (OSTI)

    He, X.; Vescovo, E.; Wang, Y.; Caruso, A.N.; Belashchenko, K.D.; Dowben, P.A.; Binek, C.

    2010-06-20

    Voltage-controlled spin electronics is crucial for continued progress in information technology. It aims at reduced power consumption, increased integration density and enhanced functionality where non-volatile memory is combined with high-speed logical processing. Promising spintronic device concepts use the electric control of interface and surface magnetization. From the combination of magnetometry, spin-polarized photoemission spectroscopy, symmetry arguments and first-principles calculations, we show that the (0001) surface of magnetoelectric Cr{sub 2}O{sub 3} has a roughness-insensitive, electrically switchable magnetization. Using a ferromagnetic Pd/Co multilayer deposited on the (0001) surface of a Cr{sub 2}O{sub 3} single crystal, we achieve reversible, room-temperature isothermal switching of the exchange-bias field between positive and negative values by reversing the electric field while maintaining a permanent magnetic field. This effect reflects the switching of the bulk antiferromagnetic domain state and the interface magnetization coupled to it. The switchable exchange bias sets in exactly at the bulk Neel temperature.

  17. NNMCAB Board Minutes: May 2003 Taos

    Broader source: Energy.gov [DOE]

    Minutes of the May 16, 2003 Board Retreat at Holiday Inn Don Fernando de Taos Presentation NNMCAB Fiscal Year 2003 Accomplishments Presentation DOE/LANL, Environmental Monitoring and Surveillance Groundwater and Surface Water, Ted Taylor Presentation DOE/LANL, Environmental Restoration, Ted Taylor

  18. 2012 BATTERIES GORDON RESEARCH CONFERENCE, MARCH 4-9, 2012

    SciTech Connect (OSTI)

    Stephen Harris

    2012-03-09

    The Gordon Research Conference on BATTERIES was held at Four Points Sheraton / Holiday Inn Express, Ventura, California, March 4-9, 2012. The Conference was well-attended with 176 participants. Gordon Research Conferences does not permit publication of meeting proceedings.

  19. A Research Framework for Demonstrating Benefits of Advanced Control Room Technologies

    SciTech Connect (OSTI)

    Le Blanc, Katya; Boring, Ronald; Joe, Jeffrey; Hallbert, Bruce; Thomas, Kenneth

    2014-12-01

    Control Room modernization is an important part of life extension for the existing light water reactor fleet. None of the 99 currently operating commercial nuclear power plants in the U.S. has completed a full-scale control room modernization to date. A full-scale modernization might, for example, entail replacement of all analog panels with digital workstations. Such modernizations have been undertaken successfully in upgrades in Europe and Asia, but the U.S. has yet to undertake a control room upgrade of this magnitude. Instead, nuclear power plant main control rooms for the existing commercial reactor fleet remain significantly analog, with only limited digital modernizations. Previous research under the U.S. Department of Energy’s Light Water Reactor Sustainability Program has helped establish a systematic process for control room upgrades that support the transition to a hybrid control. While the guidance developed to date helps streamline the process of modernization and reduce costs and uncertainty associated with introducing digital control technologies into an existing control room, these upgrades do not achieve the full potential of newer technologies that might otherwise enhance plant and operator performance. The aim of the control room benefits research presented here is to identify previously overlooked benefits of modernization, identify candidate technologies that may facilitate such benefits, and demonstrate these technologies through human factors research. This report serves as an outline for planned research on the benefits of greater modernization in the main control rooms of nuclear power plants.

  20. OVERVIEW OF A RECONFIGURABLE SIMULATOR FOR MAIN CONTROL ROOM UPGRADES IN NUCLEAR POWER PLANTS

    SciTech Connect (OSTI)

    Ronald L. Boring

    2012-10-01

    This paper provides background on a reconfigurable control room simulator for nuclear power plants. The main control rooms in current nuclear power plants feature analog technology that is growing obsolete. The need to upgrade control rooms serves the practical need of maintainability as well as the opportunity to implement newer digital technologies with added functionality. There currently exists no dedicated research simulator for use in human factors design and evaluation activities for nuclear power plant modernization in the U.S. The new research simulator discussed in this paper provides a test bed in which operator performance on new control room concepts can be benchmarked against existing control rooms and in which new technologies can be validated for safety and usability prior to deployment.

  1. Materials Science Clean Room Facility at Tulane University (Final Technical Report)

    SciTech Connect (OSTI)

    Altiero, Nicholas

    2014-10-28

    The project involves conversion of a 3,000 sq. ft. area into a clean room facility for materials science research. It will be accomplished in phases. Phase I will involve preparation of the existing space, acquisition and installation of clean room equipped with a pulsed laser deposition (PLD) processing system, and conversion of ancillary space to facilitate the interface with the clean room. From a capital perspective, Phases II and III will involve the acquisition of additional processing, fabrication, and characterization equipment and capabilities.

  2. Microstructure evolution in Xe-irradiated UO2 at room temperature

    SciTech Connect (OSTI)

    L.F. He; J. Pakarinen; M.A. Kirk; J. Gan; A.T. Nelson; X.-M. Bai; A. El-Azab; T.R. Allen

    2014-07-01

    In situ Transmission Electron Microscopy was conducted for single crystal UO2 to understand the microstructure evolution during 300 keV Xe irradiation at room temperature. The dislocation microstructure evolution was shown to occur as nucleation and growth of dislocation loops at low irradiation doses, followed by transformation to extended dislocation segments and tangles at higher doses. Xe bubbles with dimensions of 1-2 nm were observed after room-temperature irradiation. Electron Energy Loss Spectroscopy indicated that UO2 remained stoichiometric under room temperature Xe irradiation.

  3. Crews Make First Entry into McCluskey Room for Final Cleanup at Hanford

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

    Site | Department of Energy Crews Make First Entry into McCluskey Room for Final Cleanup at Hanford Site Crews Make First Entry into McCluskey Room for Final Cleanup at Hanford Site September 30, 2014 - 12:00pm Addthis Bryan Harting, nuclear chemical operator for CH2M HILL Plateau Remediation Company, was part of the crew that made the first entry to begin final cleanup of the McCluskey Room at Hanford’s Plutonium Finishing Plant this month. Bryan Harting, nuclear chemical operator for

  4. Ordered iron aluminide alloys having an improved room-temperature ductility and method thereof

    DOE Patents [OSTI]

    Sikka, Vinod K.

    1992-01-01

    A process is disclosed for improving the room temperature ductility and strength of iron aluminide intermetallic alloys. The process involves thermomechanically working an iron aluminide alloy by means which produce an elongated grain structure. The worked alloy is then heated at a temperature in the range of about 650.degree. C. to about 800.degree. C. to produce a B2-type crystal structure. The alloy is rapidly cooled in a moisture free atmosphere to retain the B2-type crystal structure at room temperature, thus providing an alloy having improved room temperature ductility and strength.

  5. Summary of MgO Bag and Room Model Team | Department of Energy

    Office of Environmental Management (EM)

    This document corresponds to Appendix D: Modeling Integrated Summary Report of the Technical Assessment Team Report. PDF icon Summary of MgO Bag and Room Model Team More Documents ...

  6. Near-term improvements for nuclear power plant control room annunciator systems. [PWR; BWR

    SciTech Connect (OSTI)

    Rankin, W.L.; Duvernoy, E.G.; Ames, K.R.; Morgenstern, M.H.; Eckenrode, R.J.

    1983-04-01

    This report sets forth a basic design philosophy with its associated functional criteria and design principles for present-day, hard-wired annunciator systems in the control rooms of nuclear power plants. It also presents a variety of annunciator design features that are either necessary for or useful to the implementation of the design philosophy. The information contained in this report is synthesized from an extensive literature review, from inspection and analysis of control room annunciator systems in the nuclear industry and in related industries, and from discussions with a variety of individuals who are knowledgeable about annunciator systems, nuclear plant control rooms, or both. This information should help licensees and license applicants in improving their hard-wired, control room annunciator systems as outlined by NUREG-0700.

  7. Review of Methods Related to Assessing Human Performance in Nuclear Power Plant Control Room Simulations

    SciTech Connect (OSTI)

    Katya L Le Blanc; Ronald L Boring; David I Gertman

    2001-11-01

    With the increased use of digital systems in Nuclear Power Plant (NPP) control rooms comes a need to thoroughly understand the human performance issues associated with digital systems. A common way to evaluate human performance is to test operators and crews in NPP control room simulators. However, it is often challenging to characterize human performance in meaningful ways when measuring performance in NPP control room simulations. A review of the literature in NPP simulator studies reveals a variety of ways to measure human performance in NPP control room simulations including direct observation, automated computer logging, recordings from physiological equipment, self-report techniques, protocol analysis and structured debriefs, and application of model-based evaluation. These methods and the particular measures used are summarized and evaluated.

  8. The LANL C-NR counting room and fission product yields

    SciTech Connect (OSTI)

    Jackman, Kevin Richard

    2015-09-21

    This PowerPoint presentation focused on the following areas: LANL C-NR counting room; Fission product yields; Los Alamos Neutron wheel experiments; Recent experiments ad NCERC; and Post-detonation nuclear forensics

  9. Y-12 helps transform Children's Museum room | Y-12 National Security...

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

    I can't thank everyone enough for their time and efforts." Dennis Hough of Y-12's Program Development helped create the room's design, as well as travelling to the Huntsville Space...

  10. NE-23

    Office of Legacy Management (LM)

    4:00 p.m., Monday through Friday (except Federal holidays), at the DOE Public Document Room located in Room lE-190 of the Forrestal Building, 1000 Independence Avenue, S.W.,...

  11. .Mr. C. Yayne Bickerstaff Manager, Corporate Industrial Hygiene

    Office of Legacy Management (LM)

    4:OO p.m., Monday through Friday (except Federal holidays), at the DOE Public Document Room located in Room lE-190 of the Forrestal Building, 1000 Independence Avenue, S.W.....

  12. HYBRID ALARM SYSTEMS: COMBINING SPATIAL ALARMS AND ALARM LISTS FOR OPTIMIZED CONTROL ROOM OPERATION

    SciTech Connect (OSTI)

    Ronald L. Boring; J.J. Persensky

    2012-07-01

    The US Department of Energy (DOE) is sponsoring research, development, and deployment on Light Water Reactor Sustainability (LWRS), in which the Idaho National Laboratory (INL) is working closely with nuclear utilities to develop technologies and solutions to help ensure the safe operational life extension of current nuclear power plants. One of the main areas of focus is control room modernization. Within control room modernization, alarm system upgrades present opportunities to meet the broader goals of the LWRS project in demonstrating the use and safety of the advanced instrumentation and control (I&C) technologies and the short-term and longer term objectives of the plant. In this paper, we review approaches for and human factors issues behind upgrading alarms in the main control room of nuclear power plants.

  13. Room-temperature spin-polarized organic light-emitting diodes with a single ferromagnetic electrode

    SciTech Connect (OSTI)

    Ding, Baofu, E-mail: b.ding@ecu.edu.au; Alameh, Kamal, E-mail: k.alameh@ecu.edu.au [Electron Science Research Institute, Edith Cowan University, 270 Joondalup Drive, Joondalup WA 6027 Australia (Australia); Song, Qunliang [Institute for Clean Energy and Advanced Materials, Southwest University, Chongqing 400715 (China)

    2014-05-19

    In this paper, we demonstrate the concept of a room-temperature spin-polarized organic light-emitting diode (Spin-OLED) structure based on (i) the deposition of an ultra-thin p-type organic buffer layer on the surface of the ferromagnetic electrode of the Spin-OLED and (ii) the use of oxygen plasma treatment to modify the surface of that electrode. Experimental results demonstrate that the brightness of the developed Spin-OLED can be increased by 110% and that a magneto-electroluminescence of 12% can be attained for a 150?mT in-plane magnetic field, at room temperature. This is attributed to enhanced hole and room-temperature spin-polarized injection from the ferromagnetic electrode, respectively.

  14. EARLY-STAGE DESIGN AND EVALUATION FOR NUCLEAR POWER PLANT CONTROL ROOM UPGRADES

    SciTech Connect (OSTI)

    Ronald L. Boring; Jeffrey C. Joe; Thomas A. Ulrich; Roger T. Lew

    2015-03-01

    As control rooms are modernized with new digital systems at nuclear power plants, it is necessary to evaluate operator performance with these systems as part of a verification and validation process. While there is regulatory and industry guidance for some modernization activities, there are no well defined standard processes or predefined metrics available for assessing what is satisfactory operator interaction with new systems, especially during the early design stages. This paper proposes a framework defining the design process and metrics for evaluating human system interfaces as part of control room modernization. The process and metrics are generalizable to other applications and serve as a guiding template for utilities undertaking their own control room modernization activities.

  15. Room temperature spin transport in undoped (110) GaAs/AlGaAs quantum wells

    SciTech Connect (OSTI)

    Yokota, Nobuhide Aoshima, Yohei; Ikeda, Kazuhiro; Kawaguchi, Hitoshi

    2014-02-17

    We are reporting on our first observation of a micrometer-order electron spin transport in a (110) GaAs/AlGaAs multiple quantum well (QW) at room temperature using a space- and time-resolved Kerr rotation technique. A 37-μm transport was observed within an electron spin lifetime of 1.2 ns at room temperature when using an in-plane electric field of 1.75 kV/cm. The spatio-temporal profiles of electron spins were well reproduced by the spin drift-diffusion equations coupled with the Poisson equation, supporting the validity of the measurement. The results suggest that (110) QWs are useful as a spin transport layer for semiconductor spintronic devices operating at room temperature.

  16. Ferromagnetism at room temperature in Cr-doped anodic titanium dioxide nanotubes

    SciTech Connect (OSTI)

    Liao, Yulong E-mail: hwzhang@uestc.edu.cn; Zhang, Huaiwu E-mail: hwzhang@uestc.edu.cn; Li, Jie; Yu, Guoliang; Zhong, Zhiyong; Bai, Feiming; Jia, Lijun; Zhang, Shihong; Zhong, Peng

    2014-05-07

    This study reports the room-temperature ferromagnetism in Cr-doped TiO{sub 2} nanotubes (NTs) synthesized via the electrochemical method followed by a novel Cr-doping process. Scanning electron microscopy and transmission electron microscopy showed that the TiO{sub 2} NTs were highly ordered with length up to 26 ?m, outer diameter about 110 nm, and inner diameter about 100 nm. X-ray diffraction results indicated there were no magnetic contaminations of metallic Cr clusters or any other phases except anatase TiO{sub 2}. The Cr-doped TiO{sub 2} NTs were further annealed in oxygen, air and argon, and room-temperature ferromagnetism was observed in all Cr-doped samples. Moreover, saturation magnetizations and coercivities of the Cr-doped under various annealing atmosphere were further analyzed, and results indicate that oxygen content played a critical role in the room-temperature ferromagnetism.

  17. Light Water Reactor Sustainability Program A Reference Plan for Control Room Modernization: Planning and Analysis Phase

    SciTech Connect (OSTI)

    Jacques Hugo; Ronald Boring; Lew Hanes; Kenneth Thomas

    2013-09-01

    The U.S. Department of Energy’s Light Water Reactor Sustainability (LWRS) program is collaborating with a U.S. nuclear utility to bring about a systematic fleet-wide control room modernization. To facilitate this upgrade, a new distributed control system (DCS) is being introduced into the control rooms of these plants. The DCS will upgrade the legacy plant process computer and emergency response facility information system. In addition, the DCS will replace an existing analog turbine control system with a display-based system. With technology upgrades comes the opportunity to improve the overall human-system interaction between the operators and the control room. To optimize operator performance, the LWRS Control Room Modernization research team followed a human-centered approach published by the U.S. Nuclear Regulatory Commission. NUREG-0711, Rev. 3, Human Factors Engineering Program Review Model (O’Hara et al., 2012), prescribes four phases for human factors engineering. This report provides examples of the first phase, Planning and Analysis. The three elements of Planning and Analysis in NUREG-0711 that are most crucial to initiating control room upgrades are: • Operating Experience Review: Identifies opportunities for improvement in the existing system and provides lessons learned from implemented systems. • Function Analysis and Allocation: Identifies which functions at the plant may be optimally handled by the DCS vs. the operators. • Task Analysis: Identifies how tasks might be optimized for the operators. Each of these elements is covered in a separate chapter. Examples are drawn from workshops with reactor operators that were conducted at the LWRS Human System Simulation Laboratory HSSL and at the respective plants. The findings in this report represent generalized accounts of more detailed proprietary reports produced for the utility for each plant. The goal of this LWRS report is to disseminate the technique and provide examples sufficient to serve as a template for other utilities’ projects for control room modernization.

  18. Performance evaluation of ZnO–CuO hetero junction solid state room temperature ethanol sensor

    SciTech Connect (OSTI)

    Yu, Ming-Ru; Suyambrakasam, Gobalakrishnan; Wu, Ren-Jang; Department of Nanotechnology, School of Interdisciplinary Courses, Noorul Islam Centre for Higher Education, Noorul Islam University, Kumaracoil 629180, Tamil Nadu ; Chavali, Murthy; Department of Applied Chemistry, Providence University, 200 Chungchi Road, Shalu, Taichung Hsien 433, Taiwan, R.O.C

    2012-07-15

    Graphical abstract: Sensor response (resistance) curves of time were changed from 150 ppm to 250 ppm alcohol concentration of ZnO–CuO 1:1. The response and recovery times were measured to be 62 and 83 s, respectively. The sensing material ZnO–CuO is a high potential alcohol sensor which provides a simple, rapid and highly sensitive alcohol gas sensor operating at room temperature. Highlights: ► The main advantages of the ethanol sensor are as followings. ► Novel materials ZnO–CuO ethanol sensor. ► The optimized ZnO–CuO hetero contact system. ► A good sensor response and room working temperature (save energy). -- Abstract: A semiconductor ethanol sensor was developed using ZnO–CuO and its performance was evaluated at room temperature. Hetero-junction sensor was made of ZnO–CuO nanoparticles for sensing alcohol at room temperature. Nanoparticles were prepared by hydrothermal method and optimized with different weight ratios. Sensor characteristics were linear for the concentration range of 150–250 ppm. Composite materials of ZnO–CuO were characterized using X-ray diffraction (XRD), temperature-programmed reduction (TPR) and high-resolution transmission electron microscopy (HR-TEM). ZnO–CuO (1:1) material showed maximum sensor response (S = R{sub air}/R{sub alcohol}) of 3.32 ± 0.1 toward 200 ppm of alcohol vapor at room temperature. The response and recovery times were measured to be 62 and 83 s, respectively. The linearity R{sup 2} of the sensor response was 0.9026. The sensing materials ZnO–CuO (1:1) provide a simple, rapid and highly sensitive alcohol gas sensor operating at room temperature.

  19. Shot-noise-limited magnetometer with sub-picotesla sensitivity at room temperature

    SciTech Connect (OSTI)

    Lucivero, Vito Giovanni; Anielski, Pawel; Gawlik, Wojciech; Mitchell, Morgan W.

    2014-11-15

    We report a photon shot-noise-limited (SNL) optical magnetometer based on amplitude modulated optical rotation using a room-temperature {sup 85}Rb vapor in a cell with anti-relaxation coating. The instrument achieves a room-temperature sensitivity of 70 fT/?(Hz) at 7.6 ?T. Experimental scaling of noise with optical power, in agreement with theoretical predictions, confirms the SNL behaviour from 5 ?T to 75??T. The combination of best-in-class sensitivity and SNL operation makes the system a promising candidate for application of squeezed light to a state-of-the-art atomic sensor.

  20. Bridging the gap: adapting advanced display technologies for use in hybrid control rooms

    SciTech Connect (OSTI)

    Jokstad, Hkon; Boring, Ronald

    2015-02-01

    The Institute for Energy Technology (IFE), runs the OECD Halden Reactor Project (HRP), featuring a state-of-the-art research simulator facility in Halden, Norway, called HAMMLAB. HAMMLAB serves two main purposes: the study of human behaviour in interaction with complex process systems; and the development, test and evaluation of prototype control centres and their individual systems. By studying operator performance in HAMMLAB and integrating the knowledge gained into new designs, the HRP contributes to improving operational safety, reliability, efficiency and productivity. The U.S. Department of Energys (DOE) Light Water Reactor Sustainability (LWRS) Program has contracted IFE to assist DOE national laboratory staff at Idaho National Laboratory (INL) in adapting HAMMLAB design concepts for the purpose of control room modernization at nuclear power plants in the U.S. In support of this effort, the DOE has built a simulator research facility at INL called the Human Systems Simulation Laboratory (HSSL). The HSSL is centered on control room modernization, in which industry provided plant instrumentation and controls are modified for upgrade opportunities. The HSSL houses the LWRS simulator, which is a reconfigurable full-scale and full-scope control room simulator. Consisting of 45 large touchscreens on 15 panels, the LWRS simulator is currently using this glass top technology to digitally represent and replicate the functionality of the analog I&C systems in existing control rooms. The LWRS simulator is reconfigurable in that different plant training simulator models obtained from the utilities can be run on the panels, and the panels can be physically moved and arranged to mimic the layout of those control rooms. The glass top technology and reconfigurability capabilities allow the LWRS simulator to be the research platform that is necessary to design, prototype, and validate human-system interface (HSI) technologies that can replace existing analog I&C. IFE has recently assisted INL in establishing the technical infrastructure for implementation of HSI prototypes from HAMMLAB into the HSSL to demonstrate relevant control room replacement systems in support of the LWRS program. In March, 2014, IFE delivered the first HSI prototype utilizing this infrastructure a large screen overview display for INL's simulator. The co-operation now continues by developing Procedure Support Displays targeted for operators in hybrid control room settings. These prototypes are being validated with U.S. reactor operators in the HSSL and optimized to enhance their performance. This research serves as a crucial stepping stone toward incorporation of advanced display technologies into conventional main control rooms.

  1. Quantum confinement of zero-dimensional hybrid organic-inorganic polaritons at room temperature

    SciTech Connect (OSTI)

    Nguyen, H. S.; Lafosse, X.; Amo, A.; Bouchoule, S.; Bloch, J.; Abdel-Baki, K.; Lauret, J.-S.; Deleporte, E.

    2014-02-24

    We report on the quantum confinement of zero-dimensional polaritons in perovskite-based microcavity at room temperature. Photoluminescence of discrete polaritonic states is observed for polaritons localized in symmetric sphere-like defects which are spontaneously nucleated on the top dielectric Bragg mirror. The linewidth of these confined states is found much sharper (almost one order of magnitude) than that of photonic modes in the perovskite planar microcavity. Our results show the possibility to study organic-inorganic cavity polaritons in confined microstructure and suggest a fabrication method to realize integrated polaritonic devices operating at room temperature.

  2. PNA-peptide Assembly in a 3D DNA Nanocage at Room Temperature

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

    PNA-peptide Assembly in a 3D DNA Nanocage at Room Temperature Authors: Flory, J.D., Shinde, S., Lin, S., Liu, Y., Yan, H., Ghirlanda, G., and Fromme, P. Title: PNA-peptide Assembly in a 3D DNA Nanocage at Room Temperature Source: J. Am. Chem. Soc. Year: 2013 Volume: 135 (18) Pages: 6985-6993 ABSTRACT: Proteins and peptides fold into dynamic structures that access a broad functional landscape, however, designing artificial polypeptide systems is still a great challenge. Conversely, DNA

  3. Laser sheet light flow visualization for evaluating room air flowsfrom Registers

    SciTech Connect (OSTI)

    Walker, Iain S.; Claret, Valerie; Smith, Brian

    2006-04-01

    Forced air heating and cooling systems and whole house ventilation systems deliver air to individual rooms in a house via supply registers located on walls ceilings or floors; and occasionally less straightforward locations like toe-kicks below cabinets. Ideally, the air velocity out of the registers combined with the turbulence of the flow, vectoring of air by register vanes and geometry of register placement combine to mix the supply air within the room. A particular issue that has been raised recently is the performance of multiple capacity and air flow HVAC systems. These systems vary the air flow rate through the distribution system depending on the system load, or if operating in a ventilation rather than a space conditioning mode. These systems have been developed to maximize equipment efficiency, however, the high efficiency ratings do not include any room mixing effects. At lower air flow rates, there is the possibility that room air will be poorly mixed, leading to thermal stratification and reduced comfort for occupants. This can lead to increased energy use as the occupants adjust the thermostat settings to compensate and parts of the conditioned space have higher envelope temperature differences than for the well mixed case. In addition, lack of comfort can be a barrier to market acceptance of these higher efficiency systems To investigate the effect on room mixing of reduced air flow rates requires the measurement of mixing of supply air with room air throughout the space to be conditioned. This is a particularly difficult exercise if we want to determine the transient performance of the space conditioning system. Full scale experiments can be done in special test chambers, but the spatial resolution required to fully examine the mixing problem is usually limited by the sheer number of thermal sensors required. Current full-scale laboratory testing is therefore severely limited in its resolution. As an alternative, we used a water-filled scale model of a room in which whole-field supply air mixing maps of two vertical planes were measured using a Planar Laser-Induced Fluorescence (PLIF) measurement technique. Water marked with fluorescent dye was used to simulate the supply airflow; and the resulting concentrations within the water filled model show how the supply air mixes with the room air and are an analog for temperature (for thermal loads) or fresh air (for ventilation). In addition to performing experiments over a range of flow rates, we also changed register locations and examined the effects for both heating and cooling operation by changing the water density (simulating air density changes due to temperature changes) using dissolved salt.

  4. Instantaneous radioiodination of rose bengal at room temperature and a cold-kit therefor. [DOE patent application

    DOE Patents [OSTI]

    O'Brien, H. Jr.; Hupf, H.B.; Wanek, P.M.

    The disclosure relates to the radioiodination of rose bengal at room temperature and a cold-kit therefor. A purified rose bengal tablet is stirred into acidified ethanol at or near room temperature, until a suspension forms. Reductant-free /sup 125/I/sup -/ is added and the resulting mixture stands until the exchange label reaction occurs at room temperature. A solution of sterile isotonic phosphate buffer and sodium hydroxide is added and the final resulting mixture is sterilized by filtration.

  5. Technical and economic analysis of energy efficiency of Chinese room air conditioners

    SciTech Connect (OSTI)

    Fridley, David G.; Rosenquist, Gregory; Jiang, Lin; Li, Aixian; Xin, Dingguo; Cheng, Jianhong

    2001-02-01

    China has experienced tremendous growth in the production and sales of room air conditioners over the last decade. Although minimum room air conditioner energy efficiency standards have been in effect since 1989, no efforts were made during most of the 1990's to update the standard to be more reflective of current market conditions. In 1999, China's State Bureau of Technical Supervision (SBTS) included in their annual plan the development and revision of the 1989 room air conditioner standard, and experts from SBTS worked together with LBNL to analyze the new standards. Based on the engineering and life cycle-cost analyses performed, the most predominant type of room air conditioner in the Chinese market (split-type with a cooling capacity between 2500 and 4500 W (8500 Btu/h and 15,300Btu/h)) can have its efficiency increased cost-effectively to an energy efficiency ratio (EER) of 2.92 W/W (9.9 Btu/hr/W). If an EER standard of 2.92 W/W became effective in 2001, Chinese consumers would be estimated to save over 3.5 billion Yuan (420 million U.S. dollars) over the period of 2001-2020. Carbon emissions over the same period would be reduced by approximately 12 million metric tonnes.

  6. High resolution InSb quantum well ballistic nanosensors for room temperature applications

    SciTech Connect (OSTI)

    Gilbertson, Adam; Cohen, L. F.; Lambert, C. J.; Solin, S. A.

    2013-12-04

    We report the room temperature operation of a quasi-ballistic InSb quantum well Hall sensor that exhibits a high frequency sensitivity of 560nT/?Hz at 20uA bias current. The device utilizes a partitioned buffer layer design that suppresses leakage currents through the mesa floor and can sustain large current densities.

  7. Baseline Evaluations to Support Control Room Modernization at Nuclear Power Plants

    SciTech Connect (OSTI)

    Boring, Ronald L.; Joe, Jeffrey C.

    2015-02-01

    For any major control room modernization activity at a commercial nuclear power plant (NPP) in the U.S., a utility should carefully follow the four phases prescribed by the U.S. Nuclear Regulatory Commission in NUREG-0711, Human Factors Engineering Program Review Model. These four phases include Planning and Analysis, Design, Verification and Validation, and Implementation and Operation. While NUREG-0711 is a useful guideline, it is written primarily from the perspective of regulatory review, and it therefore does not provide a nuanced account of many of the steps the utility might undertake as part of control room modernization. The guideline is largely summative—intended to catalog final products—rather than formative—intended to guide the overall modernization process. In this paper, we highlight two crucial formative sub-elements of the Planning and Analysis phase specific to control room modernization that are not covered in NUREG-0711. These two sub-elements are the usability and ergonomics baseline evaluations. A baseline evaluation entails evaluating the system as-built and currently in use. The usability baseline evaluation provides key insights into operator performance using the control system currently in place. The ergonomics baseline evaluation identifies possible deficiencies in the physical configuration of the control system. Both baseline evaluations feed into the design of the replacement system and subsequent summative benchmarking activities that help ensure that control room modernization represents a successful evolution of the control system.

  8. Method of installing a control room console in a nuclear power plant

    DOE Patents [OSTI]

    Scarola, Kenneth; Jamison, David S.; Manazir, Richard M.; Rescorl, Robert L.; Harmon, Daryl L.

    1994-01-01

    An advanced control room complex for a nuclear power plant, including a discrete indicator and alarm system (72) which is nuclear qualified for rapid response to changes in plant parameters and a component control system (64) which together provide a discrete monitoring and control capability at a panel (14-22, 26, 28) in the control room (10). A separate data processing system (70), which need not be nuclear qualified, provides integrated and overview information to the control room and to each panel, through CRTs (84) and a large, overhead integrated process status overview board (24). The discrete indicator and alarm system (72) and the data processing system (70) receive inputs from common plant sensors and validate the sensor outputs to arrive at a representative value of the parameter for use by the operator during both normal and accident conditions, thereby avoiding the need for him to assimilate data from each sensor individually. The integrated process status board (24) is at the apex of an information hierarchy that extends through four levels and provides access at each panel to the full display hierarchy. The control room panels are preferably of a modular construction, permitting the definition of inputs and outputs, the man machine interface, and the plant specific algorithms, to proceed in parallel with the fabrication of the panels, the installation of the equipment and the generic testing thereof.

  9. Current methods to handle wall conduction and room internal heat transfer

    SciTech Connect (OSTI)

    Davies, M.G.

    1999-07-01

    This paper reviews methods of handling wall conduction and room internal heat exchange adopted by ASHRAE (1993 Handbook of Fundamentals and later developments), CIBSE (1986 Guide and current proposals), and the CEN/TC89/WG6 proposals to calculate heating and cooling loads and related topics.

  10. Indoor Chemical Exposures: Humans' Non-respiratory Interactions with Room Air

    ScienceCinema (OSTI)

    Charles Weschler

    2010-09-01

    March 18, 2010 Berkeley Lab Environmental Energy Technology Division distinguished lecture: The marked difference in pollutant concentrations between an occupied and un-occupied room are only partially explained by human bio-effluents. Humans alter levels of ozone and related oxidants such as nitrate and hydroxyl radicals in the rooms they inhabit; in effect, they change the oxidative capacity of room air. Ozone-initiated reactions on exposed skin, hair and clothing generate products, including potentially irritating chemicals whose concentrations are much higher in the occupant's breathing zone than in the core of the room. Charles J. Weschler is a Professor at the School of Public Health, the Department of Environmental and Occupational Medicine and the Environmental and Occupational Health Sciences Institute (EOHSI) at the University of Medicine and Dentistry of New Jersey (UMDNJ)/Robert Wood Johnson Medical School & Rutgers University (New Jersey). He is also a Visiting Professor at the International Centre for Indoor Environment and Energy, Technical University of Denmark (DTU, Lyngby, Denmark).

  11. News Room

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

    energy waste and improves the kinetics of the oxygen reduction reaction, toward a more efficient fuel cell cycle. Los Alamos explores hybrid ultrasmall gold nanocluster for...

  12. Press Room

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

    more about Fermilab's lasting scientific, social and economic impacts. Office of Communication Information, interviews with experts, speakers' bureau, background materials,...

  13. TTW 12-1-05

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

    , 2005 WIPP Quick Facts (As of 11-30-05) 4,110 Shipments received since opening 33,321 Cubic meters of waste disposed 72,865 Containers disposed in the underground Upcoming Holiday Parties WTS Kid's Party December 3 - 12:00 p.m. Mall Cinema Movies offered: Zathura (PG) and Harry Potter (PG-13) WTS Christmas Party December 3 - 5:30 p.m. Walter Gerrells Performing Arts & Exhibition Centre Annex CTAC Holiday Party December 12 - 6:00 p.m. Stevens Inn NMED issues draft permit The New Mexico

  14. Headquarters Facilities Master Security Plan- Chapter 2, Limited Areas, Vault-Type Rooms and Temporary Limited Areas

    Broader source: Energy.gov [DOE]

    2016 Headquarters Facilities Master Security Plan - Chapter 2, Limited Areas, Vault-Type Rooms and Temporary Limited Areas Describes DOE Headquarters procedures for establishing, maintaining, and deactivating Limited Areas and Vault-Type Rooms and protecting the classified information handled within those Areas.

  15. Benefits of Advanced Control Room Technologies: Phase One Upgrades to the HSSL, Research Plan, and Performance Measures

    SciTech Connect (OSTI)

    Le Blanc, Katya; Joe, Jeffrey; Rice, Brandon; Ulrich, Thomas; Boring, Ronald

    2015-05-01

    Control Room modernization is an important part of life extension for the existing light water reactor fleet. None of the 99 currently operating commercial nuclear power plants in the U.S. has completed a full-scale control room modernization to date. A full-scale modernization might, for example, entail replacement of all analog panels with digital workstations. Such modernizations have been undertaken successfully in upgrades in Europe and Asia, but the U.S. has yet to undertake a control room upgrade of this magnitude. Instead, nuclear power plant main control rooms for the existing commercial reactor fleet remain significantly analog, with only limited digital modernizations. Previous research under the U.S. Department of Energy’s Light Water Reactor Sustainability Program has helped establish a systematic process for control room upgrades that support the transition to a hybrid control room. While the guidance developed to date helps streamline the process of modernization and reduce costs and uncertainty associated with introducing digital control technologies into an existing control room, these upgrades do not achieve the full potential of newer technologies that might otherwise enhance plant and operator performance. The aim of the control room benefits research is to identify previously overlooked benefits of modernization, identify candidate technologies that may facilitate such benefits, and demonstrate these technologies through human factors research. This report describes the initial upgrades to the HSSL and outlines the methodology for a pilot test of the HSSL configuration.

  16. BEYOND INTEGRATED SYSTEM VALIDATION: USE OF A CONTROL ROOM TRAINING SIMULATOR FOR PROOF-OF-CONCEPT INTERFACE DEVELOPMENT

    SciTech Connect (OSTI)

    Ronald Boring; Vivek Agarwal

    2012-07-01

    This paper provides background on a reconfigurable control room simulator for nuclear power plants. The main control rooms in current nuclear power plants feature analog technology that is growing obsolete. The need to upgrade control rooms serves the practical need of maintainability as well as the opportunity to implement newer digital technologies with added functionality. There currently exists no dedicated research simulator for use in human factors design and evaluation activities for nuclear power plants in the US. The new research simulator discussed in this paper provides a test bed in which operator performance on new control room concepts can be benchmarked against existing control rooms and in which new technologies can be validated for safety and usability prior to deployment.

  17. Sonoma Mission Inn Geothermal Area | Open Energy Information

    Open Energy Info (EERE)

    110C383.15 K 230 F 689.67 R 1 USGS Estimated Reservoir Volume: 1 km 1 USGS Mean Capacity: 6 MW 1 Click "Edit With Form" above to add content History and...

  18. Room-temperature elastic constants of Sc and ScD[sub 0. 18

    SciTech Connect (OSTI)

    Leisure, R.G. ); Schwarz, R.B.; Migliori, A.; Lei, M. )

    1993-07-01

    The complete set of elastic constants for Sc and ScD[sub 0.18] has been measured at room temperature. The results show that the addition of hydrogen to this rare-earth metal has a qualitatively different effect than the addition of hydrogen to transition metals such as palladium, vanadium, niobium, and tantalum. In the case of Sc all five elastic constants increase with the addition of hydrogen. The bulk modulus for ScD[sub 0.18] is 9.5% higher than that for Sc. The Debye temperature computed from the room-temperature elastic constants is 355 K for Sc and 371 K for ScD[sub 0.18].

  19. Cu-Cu direct bonding achieved by surface method at room temperature

    SciTech Connect (OSTI)

    Utsumi, Jun [Advanced Technology Research Center, Mitsubishi Heavy Industries, Ltd., 1-8-1 Sachiura, Kanazawa-ku, Yokohama 236-8515 (Japan); Ichiyanagi, Yuko, E-mail: yuko@ynu.ac.jp [Department of Physics, Graduate School of Engineering, Yokohama National University, Tokiwadai, Hodogaya, Yokohama 240-8501 (Japan)

    2014-02-20

    The metal bonding is a key technology in the processes for the microelectromechanical systems (MEMS) devices and the semiconductor devices to improve functionality and higher density integration. Strong adhesion between surfaces at the atomic level is crucial; however, it is difficult to achieve close bonding in such a system. Cu films were deposited on Si substrates by vacuum deposition, and then, two Cu films were bonded directly by means of surface activated bonding (SAB) at room temperature. The two Cu films, with the surface roughness Ra about 1.3nm, were bonded by using SAB at room temperature, however, the bonding strength was very weak in this method. In order to improve the bonding strength between the Cu films, samples were annealed at low temperatures, between 323 and 473 K, in air. As the result, the Cu-Cu bonding strength was 10 times higher than that of the original samples without annealing.

  20. Iron-aluminum alloys having high room-temperature and method for making same

    DOE Patents [OSTI]

    Sikka, Vinod K. (Oak Ridge, TN); McKamey, Claudette G. (Knoxville, TN)

    1993-01-01

    Iron-aluminum alloys having selectable room-temperature ductilities of greater than 20%, high resistance to oxidation and sulfidation, resistant pitting and corrosion in aqueous solutions, and possessing relatively high yield and ultimate tensile strengths are described. These alloys comprise 8 to 9.5% aluminum, up to 7% chromium, up to 4% molybdenum, up to 0.05% carbon, up to 0.5% of a carbide former such as zirconium, up to 0.1 yttrium, and the balance iron. These alloys in wrought form are annealed at a selected temperature in the range of 700.degree. C. to about 1100.degree. C. for providing the alloys with selected room-temperature ductilities in the range of 20 to about 29%.

  1. Giant electrocaloric effect in asymmetric ferroelectric tunnel junctions at room temperature

    SciTech Connect (OSTI)

    Liu, Yang Infante, Ingrid C.; Dkhil, Brahim; Lou, Xiaojie

    2014-02-24

    Room-temperature electrocaloric properties of Pt/BaTiO{sub 3}/SrRuO{sub 3} ferroelectric tunnel junctions (FTJs) are studied by using a multiscale thermodynamic model. It is found that there is a divergence in the adiabatic temperature change ΔT for the two opposite polarization orientations. This difference under a typical writing voltage of 3 V can reach over 1 K as the barrier thickness decreases. Thanks to the ultrahigh external stimulus, a giant electrocaloric effect (1.53 K/V) with ΔT being over 4.5 K can be achieved at room temperature, which demonstrates the perspective of FTJs as a promising solid-state refrigeration.

  2. Realization of ground-state artificial skyrmion lattices at room temperature

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

    Gilbert, Dustin A.; Maranville, Brian B.; Balk, Andrew L.; Kirby, Brian J.; Fischer, Peter; Pierce, Daniel T.; Unguris, John; Borchers, Julie A.; Liu, Kai

    2015-10-08

    We report that the topological nature of magnetic skyrmions leads to extraordinary properties that provide new insights into fundamental problems of magnetism and exciting potentials for novel magnetic technologies. Prerequisite are systems exhibiting skyrmion lattices at ambient conditions, which have been elusive so far. We demonstrate the realization of artificial Bloch skyrmion lattices over extended areas in their ground state at room temperature by patterning asymmetric magnetic nanodots with controlled circularity on an underlayer with perpendicular magnetic anisotropy (PMA). Polarity is controlled by a tailored magnetic field sequence and demonstrated in magnetometry measurements. The vortex structure is imprinted from themore » dots into the interfacial region of the underlayer via suppression of the PMA by a critical ion-irradiation step. In conclusion, the imprinted skyrmion lattices are identified directly with polarized neutron reflectometry and confirmed by magnetoresistance measurements. Our results demonstrate an exciting platform to explore room-temperature ground-state skyrmion lattices.« less

  3. Observation of optical spin injection into Ge-based structures at room temperature

    SciTech Connect (OSTI)

    Yasutake, Yuhsuke; Hayashi, Shuhei; Fukatsu, Susumu; Yaguchi, Hiroyuki

    2013-06-17

    Non-zero spin polarization induced by optical orientation was clearly observed at room temperature in a Ge/Ge{sub 0.8}Si{sub 0.2} quantum well grown on Ge and a Ge layer grown on Si by molecular beam epitaxy, whereas it was absent in bulk Ge. This occurred because indirect-gap photoluminescence (PL), which can obscure the spin-polarization information carried by the direct-gap PL, was quenched by unintentional growth-related defects in the epitaxial layers. Such interpretation was confirmed by applying time gating that effectively removed the indirect-gap PL characterized by a slower rise time, which allowed us to demonstrate the existence of room-temperature spin polarization in bulk Ge.

  4. The Committee met in Room 8E089 in the Forrestal Building, 1800

    U.S. Energy Information Administration (EIA) Indexed Site

    APRIL 4, 2003 + + + + + The Committee met in Room 8E089 in the Forrestal Building, 1800 Independence Avenue, S.W., Washington, D.C., at 8:30 a.m., Jay Breidt, Chair, presiding. PRESENT: F. JAY BREIDT, Chair MARK BERNSTEIN, Committee Member JOHNNY BLAIR, Committee Member JAE EDMONDS, Committee Member MOSHE FEDER, Committee Member JAMES K. HAMMITT, Committee Member NEHA KHANNA, Committee Member WILLIAM G. MOSS, Committee Member NAGARAJ K. NEERCHAL, Committee Member POLLY A. PHIPPS, Committee

  5. Design and Validation of Control Room Upgrades Using a Research Simulator Facility

    SciTech Connect (OSTI)

    Ronald L. Boring; Vivek Agarwal; Jeffrey C. Joe; Julius J. Persensky

    2012-11-01

    Since 1981, the United States (U.S.) Nuclear Regulatory Commission (NRC) [1] requires a plant- specific simulator facility for use in training at U.S. nuclear power plants (NPPs). These training simulators are in near constant use for training and qualification of licensed NPP operators. In the early 1980s, the Halden Man-Machine Laboratory (HAMMLab) at the Halden Reactor Project (HRP) in Norway first built perhaps the most well known set of research simulators. The HRP offered a high- fidelity simulator facility in which the simulator is functionally linked to a specific plant but in which the human-machine interface (HMI) may differ from that found in the plant. As such, HAMMLab incorporated more advanced digital instrumentation and controls (I&C) than the plant, thereby giving it considerable interface flexibility that researchers took full advantage of when designing and validating different ways to upgrade NPP control rooms. Several U.S. partnersthe U.S. NRC, the Electrical Power Research Institute (EPRI), Sandia National Laboratories, and Idaho National Laboratory (INL) as well as international members of the HRP, have been working with HRP to run control room simulator studies. These studies, which use crews from Scandinavian plants, are used to determine crew behavior in a variety of normal and off-normal plant operations. The findings have ultimately been used to guide safety considerations at plants and to inform advanced HMI designboth for the regulator and in industry. Given the desire to use U.S. crews of licensed operators on a simulator of a U.S. NPP, there is a clear need for a research simulator facility in the U.S. There is no general-purpose reconfigurable research oriented control room simulator facility in the U.S. that can be used for a variety of studies, including the design and validation of control room upgrades.

  6. Golden Reading Room: Request for Proposals (RFP) Number DE-RP36-07GO97036 |

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

    Department of Energy Request for Proposals (RFP) Number DE-RP36-07GO97036 Golden Reading Room: Request for Proposals (RFP) Number DE-RP36-07GO97036 RFP DE-RP36-07GO97036 -- Management and Operation of the National Renewable Energy Laboratory Alliance Prime Contract No. DE-AC36-08GO28308, through modification 1033

  7. Room temperature broadband terahertz gains in graphene heterostructures based on inter-layer radiative transitions

    SciTech Connect (OSTI)

    Tang, Linlong; Du, Jinglei; Shi, Haofei Wei, Dongshan; Du, Chunlei

    2014-10-15

    We exploit inter-layer radiative transitions to provide gains to amplify terahertz waves in graphene heterostructures. This is achieved by properly doping graphene sheets and aligning their energy bands so that the processes of stimulated emissions can overwhelm absorptions. We derive an expression for the gain estimation and show the gain is insensitive to temperature variation. Moreover, the gain is broadband and can be strong enough to compensate the free carrier loss, indicating graphene based room temperature terahertz lasers are feasible.

  8. Research on cw electron accelerators using room-temperature rf structures: Annual report

    SciTech Connect (OSTI)

    Not Available

    1986-08-15

    This joint NBS-Los Alamos project of ''Research on CW Electron Accelerators Using Room-Temperature RF Structures'' began seven years ago with the goal of developing a technology base for cw electron accelerators. In this report we describe our progress during FY 1986 and present our plans for completion of the project. First, however, it is appropriate to review the past contributions of the project, describe its status, and indicate its future benefits.

  9. Agenda12810 | U.S. DOE Office of Science (SC)

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

    8, 2010 Nuclear Science Advisory Committee (NSAC) NSAC Home Meetings NSAC Members Charges/Reports Charter .pdf file (78KB) NP Committees of Visitors Federal Advisory Committees NP Home Meetings December 8, 2010 Print Text Size: A A A FeedbackShare Page DOE/NSF Nuclear Science Advisory Committee Meeting December 8, 2010 Where: Holiday Inn National Airport Hotel, Shenandoah Ballroom I & II, 2650 Jefferson Davis Highway, Arlington, VA, Phone Number: 703-684-7200. Purpose/Topics: Perspectives

  10. Leveraging Holidays and Other Events | Department of Energy

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

    for Marketing Energy Efficiency The Solarize Guidebook: A community guide to collective purchasing of residential PV systems (Book), SunShot, U.S. Department of Energy (DOE

  11. Energy-Efficient Holiday Decorating Tips | Department of Energy

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

    In addition to using 70% less energy than traditional bulbs, they're brighter, eco-friendly, and are safer, as they are much cooler than incandescent lights. In addition, they...

  12. How do You Save Energy During the Holidays?

    Broader source: Energy.gov [DOE]

    There are plenty of ways to save money & energy even now by doing little – and even fun – things to reduce our utility bills and use less energy overall.

  13. Sales Tax Holiday for Energy-Efficient Appliances

    Broader source: Energy.gov [DOE]

    In order to qualify for the exemption, qualifying pieces of equipment must be designated as meeting or exceeding the efficiency requirements of the ENERGY STAR program. The law defines eligible...

  14. Save Energy on Appliances this Holiday Season | Department of...

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

    Recycling your old fridge not only saves you money, it also ensures that the refrigerants ... Your local utilities may even offer a rebate for recycling old appliances. If you are only ...

  15. ENERGY STAR Sales Tax Holiday for Energy-Efficient Products

    Broader source: Energy.gov [DOE]

    Although the eligibility of some products is limited according to their sale price, there are no limitations on the total value or number of products exempt from sales tax.

  16. Holiday Gifts for Energy Efficiency | Department of Energy

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

    These battery-powered devices can be used to recharge smartphones, GPS devices, and even music players several times over while on the go. Thankfully, rechargeable batteries can be ...

  17. EECBG Success Story: North Pole's Holiday Wish for an Energy...

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

    in Energy Efficiency and Conservation Block Grant funds to improve the energy ... in Energy Efficiency and Conservation Block Grant funds to improve the energy ...

  18. Holiday City-Berkeley, New Jersey: Energy Resources | Open Energy...

    Open Energy Info (EERE)

    City-Berkeley, New Jersey: Energy Resources Jump to: navigation, search Equivalent URI DBpedia Coordinates 39.9645797, -74.2707509 Show Map Loading map... "minzoom":false,"map...

  19. Sales Tax Holiday for Energy-Efficient Appliances | Department...

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

    each year for the following appliances*: Clothes washers Clothes dryers* Water heaters Trash compactors* Dishwashers Conventional ovens, ranges, and stoves* Air conditioners...

  20. Reduce Waste and Save Energy this Holiday Season | Department...

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

    Wrap your gifts with recycled paper to reduce waste and save money. | Photo courtesy of istockphotodiane555 Wrap your gifts with recycled paper to reduce waste and save money. |...

  1. Your Holidays ... Brought to You by Fuel Cells | Department of...

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

    Fuel cells, which work like batteries but dont run down or need recharging, are ... Fuel cells, which work like batteries but don't run down or need recharging, are ideal for ...

  2. Human Factors Guidance for Control Room and Digital Human-System Interface Design and Modification, Guidelines for Planning, Specification, Design, Licensing, Implementation, Training, Operation and Maintenance

    SciTech Connect (OSTI)

    R. Fink, D. Hill, J. O'Hara

    2004-11-30

    Nuclear plant operators face a significant challenge designing and modifying control rooms. This report provides guidance on planning, designing, implementing and operating modernized control rooms and digital human-system interfaces.

  3. ISSUANCE 2015-07-17: Energy Conservation Program: Energy Conservation Standards for Room Air Conditioners; Request for Information, Extension of the Public Comment Period

    Broader source: Energy.gov [DOE]

    Energy Conservation Program: Energy Conservation Standards for Room Air Conditioners; Request for Information, Extension of the Public Comment Period

  4. Establishing a value chain for human factors in nuclear power plantcontrol room modernization

    SciTech Connect (OSTI)

    Joe, Jeffrey Clark; Thomas, Kenneth David; Boring, Ronald Laurids

    2015-07-01

    Commercial nuclear power plants in the United States (U.S.) have operated reliably and efficiently for decades. With the life extensions of plants now being planned for operation beyond their original operating licenses, there are opportunities to achieve even greater efficiencies, while maintaining high operational reliabilities, with strategic, risk- and economically-informed, upgrades to plant systems and infrastructure. The U.S. Department of Energy’s Light Water Reactor Sustainability (LWRS) program supports the commercial nuclear industry’s modernization efforts through research and development (R&D) activities across many areas to help establish the technical and economic bases for modernization activities. The Advanced Instrumentation, Information, and Control Systems Technologies pathway is one R&D focus area for the LWRS program, and has researchers at Idaho National Laboratory working with select utility partners to use human factors and instrumentation and controls R&D to help modernize the plant’s main control room. However, some in the nuclear industry have not been as enthusiastic about using human factors R&D to inform life extension decision making. Part of the reason for this may stem from uncertainty decision-makers have regarding how human factors fits into the value chain for nuclear power plant control room modernization. This paper reviews past work that has attempted to demonstrate the value of human factors, and then describes the value chain concept, how it applies to control room modernization, and then makes a case for how and why human factors is an essential link in the modernization value chain.

  5. Control room modernization at Finnish nuclear power plants - Two projects compared

    SciTech Connect (OSTI)

    Laarni, J.; Norros, L.

    2006-07-01

    The modernization of automation systems and human-machine interfaces is a current issue at both of the two nuclear power plants (i.e., Fortum's Loviisa plant and TVO's Olkiluoto plant) in Finland. Since the plants have been launched in the 1970's or 1980's, technology is in part old-fashioned and needs to be renewed. At Olkiluoto upgrades of the turbine operator systems have already been conducted; at Loviisa the first phase of the modernization project has just started. Basically, there is a question of the complete digitalization of the information streams at the two plants, and transition from a conventional hard-wired or hybrid control room to a screen-based one. The new human-machine interfaces will comprise new technology, such as PC workstations, soft control, touch screens and large-screen overall displays. The modernization of human-system interfaces is carried out in a stepwise manner at both plants. At both plants the main driver has not been the need to renew the user interfaces of the control room, but the need to upgrade the automation systems. In part because of this, there is a lack of a systematic top-down approach in which different aspects of human factors (HF) engineering are considered in relationship to higher level goals. Our aim here is to give an overview description of the control room modernization projects at the two plants and provide a preliminary evaluation of their progress to date. The projects are also compared, for example, in terms of duration, scope and phasing, and who is responsible for the realization of the project. In addition, we also compare experiences from the Finnish projects to experiences from similar projects abroad. The main part of the data used in this study is based on designers' and project members' interviews. (authors)

  6. Avoiding 100 New Power Plants by Increasing Efficiency of Room Air Conditioners in India: Opportunities and Challenges

    SciTech Connect (OSTI)

    Phadke, Amol; Abhyankar, Nikit; Shah, Nihar

    2014-06-19

    Electricity demand for room ACs is growing very rapidly in emerging economies such as India. We estimate the electricity demand from room ACs in 2030 in India considering factors such as weather and income growth using market data on penetration of ACs in different income classes and climatic regions. We discuss the status of the current standards, labels, and incentive programs to improve the efficiency of room ACs in these markets and assess the potential for further large improvements in efficiency and find that efficiency can be improved by over 40percent cost effectively. The total potential energy savings from Room AC efficiency improvement in India using the best available technology will reach over 118 TWh in 2030; potential peak demand saving is found to be 60 GW by 2030. This is equivalent to avoiding 120 new coal fired power plants of 500 MW each. We discuss policy options to complement, expand and improve the ongoing programs to capture this large potential.

  7. Avoiding 100 new power plants by increasing efficiency of room air conditioners in India: opportunities and challenges

    SciTech Connect (OSTI)

    Phadke, Amol; Abhyankar, Nikit; Shah, Nihar

    2013-10-15

    Electricity demand for room ACs is growing very rapidly in emerging economies such as India. We estimate the electricity demand from room ACs in 2030 in India considering factors such as weather and income growth using market data on penetration of ACs in different income classes and climatic regions. We discuss the status of the current standards, labels, and incentive programs to improve the efficiency of room ACs in these markets and assess the potential for further large improvements in efficiency and find that efficiency can be improved by over 40% cost effectively. The total potential energy savings from Room AC efficiency improvement in India using the best available technology will reach over 118 TWh in 2030; potential peak demand saving is found to be 60 GW by 2030. This is equivalent to avoiding 120 new coal fired power plants of 500 MW each. We discuss policy options to complement, expand and improve the ongoing programs to capture this large potential.

  8. The Committee met at 8:30 a.m., in Room 8E-089, Forrestal

    U.S. Energy Information Administration (EIA) Indexed Site

    + + + + + FALL MEETING + + + + + Friday, November 3, 2000 + + + + + The Committee met at 8:30 a.m., in Room 8E-089, Forrestal Building, U.S. Department of Energy, 1000 Independence Avenue, S.W., Washington, D.C., Dr. Carol Gotway Crawford, Chairperson, presiding. PRESENT: CAROL A. GOTWAY CRAWFORD, Ph.D., Chairperson F. JAY BREIDT, Ph.D., Vice Chairperson THOMAS G. COWING, Ph.D. JAMES K. HAMMITT, Ph.D. CALVIN A. KENT, Ph.D. W. DAVID MONTGOMERY, Ph.D. WILLIAM G. MOSS, Ph.D. PRESENT (Continued):

  9. The Committee met in Conference Room 8E-089 in the Forrestal

    U.S. Energy Information Administration (EIA) Indexed Site

    THURSDAY APRIL 13, 2000 + + + + + The Committee met in Conference Room 8E-089 in the Forrestal Building at 10th Street and Independence Avenue, S.W., Washington, D.C., at 8:30 a.m., Carol Gotway Crawford, Chair, presiding. PRESENT: CAROL A. GOTWAY CRAWFORD, PhD Chair JAY BREIDT, PhD Member THOMAS G. COWING, PhD Member CALVIN A. KENT, PhD Member W. DAVID MONTGOMERY, PhD Member WILLIAM G. MOSS, PhD Member POLLY A. PHIPPS, PhD Member RANDY R. SITTER, PhD Member ROY WHITMORE, PhD Member JOHNNY

  10. The Committee met in Room 1E-245 of the Forrestal Building,

    U.S. Energy Information Administration (EIA) Indexed Site

    COMMITTEE ON ENERGY STATISTICS MEETING FRIDAY NOVEMBER 20, 1998 The Committee met in Room 1E-245 of the Forrestal Building, Department of Energy, 1000 Independence Avenue, S.W., Washington, D.C. at 8:30 a.m., Daniel A. Relles, Chair, presiding. PRESENT: Daniel A. Relles, Chair Carol Gotway Crawford, Vice Chair David R. Bellhouse Charles W. Bischoff Jay Breidt R. Samprit Chatterjee Greta M. Ljung Polly A. Phipps Seymour Sudman ALSO PRESENT: Lynda CarlsonBob Jewett Mary CarlsonRoy Kass Jay

  11. The Committee met in Room 1E-246 of the Forrestal Building at

    U.S. Energy Information Administration (EIA) Indexed Site

    MEETING + + + + + THURSDAY NOVEMBER 19, 1998 The Committee met in Room 1E-246 of the Forrestal Building at the Department of Energy, 1000 Independence Avenue, S.W., Washington, D.C., at 8:30 a.m., Daniel A. Relles, Chair, presiding. PRESENT: DANIEL A. RELLES Chair CAROL GOTWAY CRAWFORD Vice Chair DAVID R. BELLHOUSE CHARLES W. BISCHOFF JAY BREIDT R. SAMPRIT CHATTERJEE JAMES HAMMITT GRETA M. LJUNG POLLY A. PHIPPS SEYMOUR SUDMAN ALSO PRESENT: ERIN BOEDECKER STEPHEN CALOPEDIS LYNDA CARLSON SAM COHEN

  12. The meeting was held at 8:30 in Room 8E-089 of the Department

    U.S. Energy Information Administration (EIA) Indexed Site

    THURSDAY, OCTOBER 24, 2002 The meeting was held at 8:30 in Room 8E-089 of the Department of Energy, 1000 Independence Avenue, S.W., Washington, D.C., Carol A. Gotway Crawford, Chair, presiding. PRESENT: CAROL A. GOTWAY CRAWFORD, Ph.D. Chair F. JAY BREIDT, Ph.D. Vice Chair MARK BERNSTEIN, Ph.D. JOHNNY BLAIR MARK BURTON, Ph.D. JAY EDMONDS, Ph.D. JAMES K. HAMMITT, Ph.D. NICHOLAS W. HENGARTNER WILLIAM G. MOSS, Ph.D. POLLY A. PHIPPS, Ph.D. RANDY R. SITTER, Ph.D. ROY WHITMORE, Ph.D. ENERGY INFORMATION

  13. Press Room - Press Releases - U.S. Energy Information Administration (EIA)

    Gasoline and Diesel Fuel Update (EIA)

    Press Room Glossary › FAQS › Overview Press Releases Testimony Presentations Radio Events U.S. ENERGY INFORMATION ADMINISTRATION WASHINGTON DC 20585 FOR IMMEDIATE RELEASE APRIL 28, 2011 Immediate Reductions in EIA's Energy Data and Analysis Programs Necessitated by FY 2011 Funding Cut WASHINGTON, DC - The final fiscal year (FY) 2011 budget provides $95.4 million for the U.S. Energy Information Administration (EIA), a reduction of $15.2 million, or 14 percent, from the FY 2010 level.

  14. Detection of pico-Tesla magnetic fields using magneto-electric sensors at room temperature

    SciTech Connect (OSTI)

    Zhai Junyi; Xing Zengping; Dong Shuxiang; Li Jiefang; Viehland, D. [Department of Materials Science and Engineering, Virginia Tech, Blacksburg, Virginia 24061 (United States)

    2006-02-06

    The measurement of low-frequency (10{sup -2}-10{sup 3} Hz) minute magnetic field variations (10{sup -12} Tesla) at room temperature in a passive mode of operation would be critically enabling for deployable neurological signal interfacing and magnetic anomaly detection applications. However, there is presently no magnetic field sensor capable of meeting all of these requirements. Here, we present new bimorph and push-pull magneto-electric laminate composites, which incorporate a charge compensation mechanism (or bridge) that dramatically enhances noise rejection, enabling achievement of such requirements.

  15. A comparison of hydrogen and mercury embrittlement in monel at room temperature

    SciTech Connect (OSTI)

    Taylor, L.B.; Price, C.E.

    1986-01-01

    Slow strain rate tensile tests were performed on annealed and cold drawn Monel 400 and Monel R405 at room temperature in air, mercury, and electrolyte hydrogen. Hydrogen and mercury caused embrittlement with the fractures having the same specific features. Crack initiation was largely intergranular but an increasing proportion of transgranular cracking occurred subsequently, especially in the presence of hydrogen and for monel R405. It is believed that the decreased cohesive strength and enhanced shear models of embrittlement apply to the intergranular and transgranular crack modes respectively.

  16. Press Room - Press Releases - U.S. Energy Information Administration (EIA)

    Gasoline and Diesel Fuel Update (EIA)

    1, 2015 MEDIA ADVISORY: EIA to Release Updated Energy Forecasts to 2040 WHO: Adam Sieminski, Administrator U.S. Energy Information Administration (EIA) WHAT: EIA presents cases from Annual Energy Outlook 2015 with projections of U.S. energy supply, demand, and prices to 2040. WHEN: Tuesday, April 14, 2015 1:00 to 2:30 p.m. eastern time WHERE: Energy and National Security Program CSIS | Center for Strategic & International Studies 1st Floor Conference Room 1616 Rhode Island Avenue, NW

  17. Room-temperature amorphous alloy field-effect transistor exhibiting particle and wave electronic transport

    SciTech Connect (OSTI)

    Fukuhara, M.; Kawarada, H.

    2015-02-28

    The realization of room-temperature macroscopic field effect transistors (FETs) will lead to new epoch-making possibilities for electronic applications. The I{sub d}-V{sub g} characteristics of the millimeter-sized aluminum-oxide amorphous alloy (Ni{sub 0.36}Nb{sub 0.24}Zr{sub 0.40}){sub 90}H{sub 10} FETs were measured at a gate-drain bias voltage of 060??V in nonmagnetic conditions and under a magnetic fields at room temperature. Application of dc voltages to the gate electrode resulted in the transistor exhibiting one-electron Coulomb oscillation with a period of 0.28?mV, Fabry-Perot interference with a period of 2.35??V under nonmagnetic conditions, and a Fano effect with a period of 0.26?mV for Vg and 0.2?T under a magnetic field. The realization of a low-energy controllable device made from millimeter-sized Ni-Nb-Zr-H amorphous alloy throws new light on cluster electronics.

  18. Stable room-temperature ferromagnetic phase at the FeRh(100) surface

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

    Pressacco, Federico; Uhlir, Vojtech; Gatti, Matteo; Bendounan, Azzedine; Fullerton, Eric E.; Sirotti, Fausto

    2016-03-03

    Interfaces and low dimensionality are sources of strong modifications of electronic, structural, and magnetic properties of materials. FeRh alloys are an excellent example because of the first-order phase transition taking place at ~400 K from an antiferromagnetic phase at room temperature to a high temperature ferromagnetic one. It is accompanied by a resistance change and volume expansion of about 1%. We have investigated the electronic and magnetic properties of FeRh(100) epitaxially grown on MgO by combining spectroscopies characterized by different probing depths, namely X-ray magnetic circular dichroism and photoelectron spectroscopy. Furthermore, we find that the symmetry breaking induced at themore » Rh-terminated surface stabilizes a surface ferromagnetic layer involving five planes of Fe and Rh atoms in the nominally antiferromagnetic phase at room temperature. First-principles calculations provide a microscopic description of the structural relaxation and the electron spin-density distribution that support the experimental findings.« less

  19. A waterjet mining machine for use in room and pillar mining operations

    SciTech Connect (OSTI)

    Summers, D.A.

    1990-06-01

    A new mining machine is constructed for use in room and pillar mining operations. This machine uses the action of computer controlled, centrally located high pressure cutting lances to cut deep slots in a coal face. These slots stress relieve the coal ahead of the machine and outline blocks of coal. The movement forward of the machine then wedges up the lower block of coal. This wedging action is assisted by the gathering arms of the loader section of the machine, and by underlying oscillating waterjets which create a slot ahead of the loading wedge as it advances. Finally the top section of coal is brought down by the sequential advance of wedge faced roof support members, again assisted by the waterjet action from the central cutting arms. The machine is designed to overcome major disadvantages of existing room and pillar mining machines in regard to a reduction in respirable dust, the creation of an immediate roof support, and an increase in product size, with concomitant reduction in cleaning costs.

  20. Optically activated sub-millimeter dielectric relaxation in amorphous thin film silicon at room temperature

    SciTech Connect (OSTI)

    Rahman, Rezwanur; Ohno, Tim R.; Taylor, P. C.; Scales, John A.

    2014-05-05

    Knowing the frequency-dependent photo-induced complex conductivity of thin films is useful in the design of photovoltaics and other semi-conductor devices. For example, annealing in the far-infrared could in principle be tailored to the specific dielectric properties of a particular sample. The frequency dependence of the conductivity (whether dark or photo-induced) also gives insight into the effective dimensionality of thin films (via the phonon density of states) as well as the presence (or absence) of free carriers, dopants, defects, etc. Ultimately, our goal is to make low-noise, phase-sensitive room temperature measurements of the frequency-dependent conductivity of thin films from microwave frequencies into the far-infrared; covering, the frequency range from ionic and dipole relaxation to atomic and electronic processes. To this end, we have developed a high-Q (quality factor) open cavity resonator capable of resolving the complex conductivity of sub-micron films in the range of 100350?GHz (0.10.35 THz, or 0.41?meV). In this paper, we use a low-power green laser to excite bound charges in high-resistivity amorphous silicon thin film. Even at room temperature, we can resolve both the dark conductivity and photo-induced changes associated with dielectric relaxation and possibly some small portion of free carriers.

  1. Behavior of tritium permeation induced by water corrosion of alpha iron around room temperature

    SciTech Connect (OSTI)

    Otsuka, T.; Hashizume, K.

    2015-03-15

    Tritium (T) permeation leakage to surroundings is a great safety concern in fission and fusion reactor systems. T permeation potentially occurs from T contaminated water through cooling tubes or storage tank made of metals which dissolve some T evolved by water corrosion. In order to understand behaviors of hydrogen uptake and permeation in pure ?-iron (?Fe) during water corrosion around room temperature, hydrogen permeation experiments for an ?Fe membrane have been conducted by means of tritium tracer techniques. The present study suggests that hydrogen produced by water corrosion of ?Fe is trapped in product oxide layers to delay hydrogen uptake in ?Fe for a moment. However, the oxide layers do not work as a sufficient barrier for hydrogen uptake. Some of hydrogen dissolved in ?Fe normally diffuses and permeates through the bulk in the early stage of permeation. In a later stage, hydrogen permeation could be apparently stopped by the disappearance of concentration difference of tritium. Hydrogen partial pressure at the water/?Fe interface could be ranged from 0.7 to 9.5 kPa around room temperature.

  2. Sessile dislocations by reactions in NiAl severely deformed at room temperature

    SciTech Connect (OSTI)

    Geist, D.; Gammer, C.; Rentenberger, C.; Karnthaler, H. P.

    2015-02-05

    B2 ordered NiAl is known for its poor room temperature (RT) ductility; failure occurs in a brittle like manner even in ductile single crystals deforming by single slip. In the present study NiAl was severely deformed at RT using the method of high pressure torsion (HPT) enabling the hitherto impossible investigation of multiple slip deformation. Methods of transmission electron microscopy were used to analyze the dislocations formed by the plastic deformation showing that as expected dislocations with Burgers vector a(100) carry the plasticity during HPT deformation at RT. In addition, we observe that they often form a(110) dislocations by dislocation reactions; the a(110) dislocations are considered to be sessile based on calculations found in the literature. It is therefore concluded that the frequently encountered 3D dislocation networks containing sessile a(110) dislocations are pinned and lead to deformation-induced embrittlement. In spite of the severe deformation, the chemical order remains unchanged.

  3. On the magnetic field signal radiated by an atmospheric pressure room temperature plasma jet

    SciTech Connect (OSTI)

    Wu, S.; Huang, Q.; Wang, Z.; Lu, X. [State Key Laboratory of Advanced Electromagnetic Engineering and Technology, Huazhong University of Science and Technology, Wuhan, Hubei 430074 (China)

    2013-01-28

    In this paper, the magnetic field signal radiated from an atmospheric pressure room temperature plasma plume is measured. It's found that the magnetic field signal has similar waveform as the current carried by the plasma plume. By calibration of the magnetic field signal, the plasma plume current is obtained by measuring the magnetic field signal radiated by the plasma plume. In addition, it is found that, when gas flow modes changes from laminar regime to turbulence regime, the magnetic field signal waveforms appears different, it changes from a smooth curve to a curve with multiple spikes. Furthermore, it is confirmed that the plasma plume generated by a single electrode (without ground electrode) plasma jet device carries higher current than that with ground electrode.

  4. Stability analysis of a backfilled room-and-pillar mine. Report of investigations/1995

    SciTech Connect (OSTI)

    Tesarik, D.R.; Seymour, J.B.; Yanske, T.R.; McKibbin, R.W.

    1995-03-01

    Displacement and stress changes in cemented backfill and ore pillars at the Buick Mine, near Boss, MO, were monitored by engineers from the U.S. Bureau of Mines (USBM) and The Doe Run Co., St Louis, MO. A test area in this room-and-pillar mine was backfilled to provide support when remnant ore pillars were mined. Objectives of this research were to evaluate the effect of backfill on mine stability, observe backfill conditions during pillar removal, and calibrate a numeric model to be used to design other areas of the mine. Two-dimensional, finite-element and three-dimensional, displacement-discontinuity codes were used to model the study area. Combined with instrument data, these codes identified two failed pillars.

  5. Using micro saint to predict performance in a nuclear power plant control room

    SciTech Connect (OSTI)

    Lawless, M.T.; Laughery, K.R.; Persenky, J.J.

    1995-09-01

    The United States Nuclear Regulatory Commission (NRC) requires a technical basis for regulatory actions. In the area of human factors, one possible technical basis is human performance modeling technology including task network modeling. This study assessed the feasibility and validity of task network modeling to predict the performance of control room crews. Task network models were built that matched the experimental conditions of a study on computerized procedures that was conducted at North Carolina State University. The data from the {open_quotes}paper procedures{close_quotes} conditions were used to calibrate the task network models. Then, the models were manipulated to reflect expected changes when computerized procedures were used. These models` predictions were then compared to the experimental data from the {open_quotes}computerized conditions{close_quotes} of the North Carolina State University study. Analyses indicated that the models predicted some subsets of the data well, but not all. Implications for the use of task network modeling are discussed.

  6. Decoupling charge transport from the structural dynamics in room temperature ionic liquids

    SciTech Connect (OSTI)

    Griffin, Phillip; Agapov, Alexander L; Kisliuk, Alexander; Sun, Xiao-Guang; Dai, Sheng; Novikov, Vladimir; Sokolov, Alexei P

    2011-01-01

    Light scattering and dielectric spectroscopy measurements were performed on the room temperature ionic liquid (RTIL) [C4mim][NTf2] in a broad temperature and frequency range. Ionic conductivity was used to estimate self-diffusion of ions, while light scattering was used to study structural relaxation. We demonstrate that the ionic diffusion decouples from the structural relaxation process as the temperature of the sample decreases toward Tg. The strength of the decoupling appears to be significantly lower than that expected for a supercooled liquid of similar fragility. The structural relaxation process in the RTIL follows well the high-temperature mode coupling theory (MCT) scenario. Using the MCT analysis we estimated the dynamic crossover temperature in [C4mim][NTf2] to be Tc 225 5 K. However, our analysis reveals no sign of the dynamic crossover in the ionic diffusion process.

  7. Direct Observation of Room-Temperature Polar Ordering in Colloidal GeTe Nanocrystals

    SciTech Connect (OSTI)

    Polking, Mark J.; Zheng, Haimei; Urban, Jeffrey J.; Milliron, Delia J.; Chan, Emory; Caldwell, Marissa A.; Raoux, Simone; Kisielowski, Christian F.; Ager III, Joel W.; Ramesh, Ramamoorthy; Alivisatos, A.P.

    2009-12-07

    Ferroelectrics and other materials that exhibit spontaneous polar ordering have demonstrated immense promise for applications ranging from non-volatile memories to microelectromechanical systems. However, experimental evidence of polar ordering and effective synthetic strategies for accessing these materials are lacking for low-dimensional nanomaterials. Here, we demonstrate the synthesis of size-controlled nanocrystals of the polar material germanium telluride (GeTe) using colloidal chemistry and provide the first direct evidence of room-temperature polar ordering in nanocrystals less than 5 nm in size using aberration-corrected transmission electron microscopy. Synchrotron x-ray diffraction and Raman studies demonstrate a sizeable polar distortion and a reversible size-dependent polar phase transition in these nanocrystals. The stability of polar ordering in solution-processible nanomaterials suggests an economical avenue to Tbit/in2-density non-volatile memory devices and other applications.

  8. Blue photoluminescence enhancement in laser-irradiated 6H-SiC at room temperature

    SciTech Connect (OSTI)

    Wu, Yan; Ji, Lingfei Lin, Zhenyuan; Jiang, Yijian; Zhai, Tianrui

    2014-01-27

    Blue photoluminescence (PL) of 6H-SiC irradiated by an ultraviolet laser can be observed at room temperature in dark condition. PL spectra with Gaussian fitting curve of the irradiated SiC show that blue luminescence band (?440?nm) is more pronounced than other bands. The blue PL enhancement is the combined result of the improved shallow N-donor energy level and the unique surface state with Si nanocrystals and graphene/Si composite due to the effect of photon energy input by the short-wavelength laser irradiation. The study can provide a promising route towards the preparation of well-controlled blue photoluminescence material for light-emitting devices.

  9. Scanning tunneling microscopy reveals LiMnAs is a room temperature anti-ferromagnetic semiconductor

    SciTech Connect (OSTI)

    Wijnheijmer, A. P.; Koenraad, P. M.; Marti, X.; Holy, V.; Cukr, M.; Novak, V.; Jungwirth, T.

    2012-03-12

    We performed scanning tunneling microscopy and spectroscopy on a LiMnAs(001) thin film epitaxially grown on an InAs(001) substrate by molecular beam epitaxy. While the in situ cleavage exposed only the InAs(110) non-polar planes, the cleavage continued into the LiMnAs thin layer across several facets. We combined both topography and current mappings to confirm that the facets correspond to LiMnAs. By spectroscopy we show that LiMnAs has a band gap. The band gap evidenced in this study, combined with the known Neel temperature well above room temperature, confirms that LiMnAs is a promising candidate for exploring the concepts of high temperature semiconductor spintronics based on antiferromagnets.

  10. Environmental effect on room-temperature ductility of isothermally forged TiAl-base alloys

    SciTech Connect (OSTI)

    Nakamura, Morihiko; Hashimoto, Kenki (National Research Inst. for Metals, Tokyo (Japan)); Itoh, Naoyuki (Nippon Steel Corp., Chiba (Japan)); Tsujimoto, Tokuzo (Ibaraki Univ. (Japan). Faculty of Engineering); Suzuki, Toshiyuki (Kougakuin Univ., Tokyo (Japan))

    1994-02-01

    Isothermally forged TiAl-base alloy (Al-rich, Mn-containing, and Cr-containing TiAl) were heat-treated in various conditions, and equiaxed grain structures consisting of [gamma] and [alpha][sub 2] or [beta] phases were obtained. The heat-treated alloys were tensile tested in vacuum and air at room temperature, and the environmental effect on tensile elongation was studied. The ductility of the alloys consisting of equiaxed [gamma] grains and a large amount of [alpha][sub 2] grains was not largely affecting by laboratory air, and a decrease in the amount of [alpha][sub 2] grains resulted in a large reduction of ductility in air. The [beta] phase in the Cr-containing alloy improved the ductility in vacuum, but it resulted in a large reduction of ductility in air.

  11. EXAFS investigations of the mechanism of facilitated ion transfer into a room-temperature ionic liquid.

    SciTech Connect (OSTI)

    Jensen, M. P.; Dzielawa, J. A.; Rickert, P.; Dietz, M. L.; Chemistry

    2002-09-11

    The Sr(II)-crown ether complexes formed in a room-temperature ionic liquid (RTIL), 1-methyl-3-pentylimidazolium bis[(trifluoromethyl)sulfonyl]amide, have been studied by X-ray absorption fine structure measurements at the Sr K-edge. When a Sr(NO{sub 3}){sub 2}-crown ether complex is directly dissolved in a water-saturated RTIL, both nitrate ligands and the crown ether coordinate the Sr, as observed in a conventional two-phase water-octanol system. When the cationic Sr-crown ether complex is created in a two-phase water-RTIL system, however, only cationic Sr-crown ether complexes are observed in the RTIL phase. This difference in the coordination complexes arises from differences in the mechanism of cation extraction between the RTIL and conventional molecular organic solvents, a finding with important implications for synthesis, catalysis, and ion separations using two-phase water-RTIL systems.

  12. A magnetically shielded room with ultra low residual field and gradient

    SciTech Connect (OSTI)

    Altarev, I.; Chesnevskaya, S.; Gutsmiedl, E.; Kuchler, F.; Lins, T.; Marino, M.; McAndrew, J.; Niessen, B.; Paul, S.; Petzoldt, G.; Singh, J.; Stoepler, R.; Stuiber, S.; Sturm, M.; Taubenheim, B. [Physikdepartment, Technische Universitt Mnchen, D-85748 Garching (Germany); Babcock, E. [Jlich Center for Neutron Science, Lichtenbergstrasse 1, D-85748 Garching (Germany); Beck, D.; Sharma, S. [Physics Department, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801 (United States); Burghoff, M.; Fan, I. [Physikalisch-Technische Bundesanstalt Berlin, D-10587 Berlin (Germany); and others

    2014-07-15

    A versatile and portable magnetically shielded room with a field of (700200) pT within a central volume of 1 m 1 m 1 m and a field gradient less than 300 pT/m, achieved without any external field stabilization or compensation, is described. This performance represents more than a hundredfold improvement of the state of the art for a two-layer magnetic shield and provides an environment suitable for a next generation of precision experiments in fundamental physics at low energies; in particular, searches for electric dipole moments of fundamental systems and tests of Lorentz-invariance based on spin-precession experiments. Studies of the residual fields and their sources enable improved design of future ultra-low gradient environments and experimental apparatus. This has implications for developments of magnetometry beyond the femto-Tesla scale in, for example, biomagnetism, geosciences, and security applications and in general low-field nuclear magnetic resonance (NMR) measurements.

  13. Iron-aluminum alloys having high room-temperature and method for making same

    DOE Patents [OSTI]

    Sikka, V.K.; McKamey, C.G.

    1993-08-24

    A wrought and annealed iron-aluminum alloy is described consisting essentially of 8 to 9.5% aluminum, an effective amount of chromium sufficient to promote resistance to aqueous corrosion of the alloy, and an alloying constituent selected from the group of elements consisting of an effective amount of molybdenum sufficient to promote solution hardening of the alloy and resistance of the alloy to pitting when exposed to solutions containing chloride, up to about 0.05% carbon with up to about 0.5% of a carbide former which combines with the carbon to form carbides for controlling grain growth at elevated temperatures, and mixtures thereof, and the balance iron, wherein said alloy has a single disordered [alpha] phase crystal structure, is substantially non-susceptible to hydrogen embrittlement, and has a room-temperature ductility of greater than 20%.

  14. Method for stabilizing low-level mixed wastes at room temperature

    DOE Patents [OSTI]

    Wagh, Arun S. (Joliet, IL); Singh, Dileep (Westmont, IL)

    1997-01-01

    A method to stabilize solid and liquid waste at room temperature is provided comprising combining solid waste with a starter oxide to obtain a powder, contacting the powder with an acid solution to create a slurry, said acid solution containing the liquid waste, shaping the now-mixed slurry into a predetermined form, and allowing the now-formed slurry to set. The invention also provides for a method to encapsulate and stabilize waste containing cesium comprising combining the waste with Zr(OH).sub.4 to create a solid-phase mixture, mixing phosphoric acid with the solid-phase mixture to create a slurry, subjecting the slurry to pressure; and allowing the now pressurized slurry to set. Lastly, the invention provides for a method to stabilize liquid waste, comprising supplying a powder containing magnesium, sodium and phosphate in predetermined proportions, mixing said powder with the liquid waste, such as tritium, and allowing the resulting slurry to set.

  15. Investigation of room temperature ferromagnetic nanoparticles of Gd5Si4

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

    Hadimani, R. L.; Gupta, S.; Harstad, S. M.; Pecharsky, V. K.; Jiles, D. C.

    2015-07-06

    Gd5(SixGe1-x)4 compounds undergo first-order phase transitions close to room temperature when x ~ = 0.5, which are accompanied by extreme changes of properties. We report the fabrication of the nanoparticles of one of the parent compounds-Gd5Si4-using high-energy ball milling. Crystal structure, microstructure, and magnetic properties have been investigated. Particles agglomerate at long milling times, and the particles that are milled >20 min lose crystallinity and no longer undergo magnetic phase transition close to 340 K, which is present in a bulk material. The samples milled for >20 min exhibit a slightly increased coercivity. As a result, magnetization at a highmore » temperature of 275K decreases with the increase in the milling time.« less

  16. Comparative study of the embrittlement of Monel 400 at room temperature by hydrogen and by mercury

    SciTech Connect (OSTI)

    Price, C.E.; Fredell, R.S.

    1986-05-01

    Slow strain rate tensile tests were performed at room temperature on Monel 400 specimens of grain sizes 35 to 500 microns, in the environments of air, mercury, and electrolytically generated hydrogen. Specimens of grain size 250 microns were tested at a range of strain rates in the three environments. It was found that cracks initiated easiest in hydrogen but propagated easiest in mercury; consequently the embrittlement was usually more severe in mercury. The embrittlement decreased with increasing strain rate, and with increasing grain size in hydrogen. Embrittlement in mercury was maximum at intermediate grain sizes. A fracture sequence of intergranular to transgranular to microvoid coalescence was common. The intergranular and transgranular fractures are interpreted in terms of the reduced cohesive stress and enhanced shear models of embrittlement, respectively. 52 references.

  17. Method for stabilizing low-level mixed wastes at room temperature

    DOE Patents [OSTI]

    Wagh, A.S.; Singh, D.

    1997-07-08

    A method to stabilize solid and liquid waste at room temperature is provided comprising combining solid waste with a starter oxide to obtain a powder, contacting the powder with an acid solution to create a slurry, said acid solution containing the liquid waste, shaping the now-mixed slurry into a predetermined form, and allowing the now-formed slurry to set. The invention also provides for a method to encapsulate and stabilize waste containing cesium comprising combining the waste with Zr(OH){sub 4} to create a solid-phase mixture, mixing phosphoric acid with the solid-phase mixture to create a slurry, subjecting the slurry to pressure; and allowing the now pressurized slurry to set. Lastly, the invention provides for a method to stabilize liquid waste, comprising supplying a powder containing magnesium, sodium and phosphate in predetermined proportions, mixing said powder with the liquid waste, such as tritium, and allowing the resulting slurry to set. 4 figs.

  18. Room-temperature near-infrared silicon carbide nanocrystalline emitters based on optically aligned spin defects

    SciTech Connect (OSTI)

    Muzha, A.; Fuchs, F.; Simin, D.; Astakhov, G. V.; Tarakina, N. V.; Trupke, M.; Soltamov, V. A.; Mokhov, E. N.; Baranov, P. G.; Dyakonov, V.; and others

    2014-12-15

    Bulk silicon carbide (SiC) is a very promising material system for bio-applications and quantum sensing. However, its optical activity lies beyond the near infrared spectral window for in-vivo imaging and fiber communications due to a large forbidden energy gap. Here, we report the fabrication of SiC nanocrystals and isolation of different nanocrystal fractions ranged from 600?nm down to 60?nm in size. The structural analysis reveals further fragmentation of the smallest nanocrystals into ca. 10-nm-size clusters of high crystalline quality, separated by amorphization areas. We use neutron irradiation to create silicon vacancies, demonstrating near infrared photoluminescence. Finally, we detect room-temperature spin resonances of these silicon vacancies hosted in SiC nanocrystals. This opens intriguing perspectives to use them not only as in-vivo luminescent markers but also as magnetic field and temperature sensors, allowing for monitoring various physical, chemical, and biological processes.

  19. Regulatory analysis for the resolution of Generic Issue 143: Availability of chilled water system and room cooling

    SciTech Connect (OSTI)

    Leung, V.T.

    1993-12-01

    This report presents the regulatory analysis for Generic Issue (GI-143), {open_quotes}Availability of Chilled Water System and Room Cooling.{close_quotes} The heating, ventilating, and air conditioning (HVAC) systems and related auxiliaries are required to provide control of environmental conditions in areas in light water reactor (LWR) plants that contain safety-related equipment. In some plants, the HVAC and chilled water systems serve to maintain a suitable environment for both safety and non-safety-related areas. Although some plants have an independent chilled water system for the safety-related areas, the heat removal capability often depends on the operability of other supporting systems such as the service water system or the component cooling water system. The operability of safety-related components depends upon operation of the HVAC and chilled water systems to remove heat from areas containing the equipment. If cooling to dissipate the heat generated is unavailable, the ability of the safety-related equipment to operate as intended cannot be assured. Typical components or areas in the nuclear power plant that could be affected by the failure of cooling from HVAC or chilled water systems include the (1) emergency switchgear and battery rooms, (2) emergency diesel generator room, (3) pump rooms for residual heat removal, reactor core isolation cooling, high-pressure core spray, and low-pressure core spray, and (4) control room. The unavailability of such safety-related equipment or areas could cause the core damage frequency (CDF) to increase significantly.

  20. Improved design of room and pillar coal mining. Final technical report, October 1, 1978-March 31, 1982

    SciTech Connect (OSTI)

    Bieniawski, Z.T.

    1982-06-30

    The objective of this research grant was to improve upon the design of roof spans and coal pillars in a coal mining technique known as room-and-pillar mining. Essentially, the project consisted of three aspects: determination of stable roof spans; determination of the strength of coal pillars; and determination of safety factors for room-and-pillar coal mining conditions in the United States. The study included a critical review of the available pillar design formulas as well as the design methods for selecting stable roof spans. Three novel approaches were utilized: (1) the petite sismique technique was assessed for possible determination of coal pillar deformability; this was the first use of this technique in the United States since its development in France; (2) the Geomechanics Classification was extended for determination of safe roof spans in room-and-pillar coal mining; and (3) a national survey of the current design practice as well as of the stable and failed coal pillars and roof spans was performed with the aim of determining factors of safety in room-and-pillar coal mining. Research investigations included field studies, laboratory testing and analytical computer simulations. The final outcome of the project is a proposal for a design code for room-and-pillar coal mining in the United States. In the course of this research, seven publications were prepared and three M.S. theses were completed. Practical applications of this research are discussed.

  1. Light Water Reactor Sustainability Program Operator Performance Metrics for Control Room Modernization: A Practical Guide for Early Design Evaluation

    SciTech Connect (OSTI)

    Ronald Boring; Roger Lew; Thomas Ulrich; Jeffrey Joe

    2014-03-01

    As control rooms are modernized with new digital systems at nuclear power plants, it is necessary to evaluate the operator performance using these systems as part of a verification and validation process. There are no standard, predefined metrics available for assessing what is satisfactory operator interaction with new systems, especially during the early design stages of a new system. This report identifies the process and metrics for evaluating human system interfaces as part of control room modernization. The report includes background information on design and evaluation, a thorough discussion of human performance measures, and a practical example of how the process and metrics have been used as part of a turbine control system upgrade during the formative stages of design. The process and metrics are geared toward generalizability to other applications and serve as a template for utilities undertaking their own control room modernization activities.

  2. Room-temperature mid-infrared "M"-type GaAsSb/InGaAs quantum well

    Office of Scientific and Technical Information (OSTI)

    lasers on InP substrate (Journal Article) | SciTech Connect Room-temperature mid-infrared "M"-type GaAsSb/InGaAs quantum well lasers on InP substrate Citation Details In-Document Search Title: Room-temperature mid-infrared "M"-type GaAsSb/InGaAs quantum well lasers on InP substrate We have demonstrated experimentally the InP-based "M"-type GaAsSb/InGaAs quantum-well (QW) laser lasing at 2.41 μm at room temperature by optical pumping. The threshold power density

  3. Room-temperature nonlinear transport phenomena in low-dimensional Ni-Nb-Zr-H glassy alloys and its device

    SciTech Connect (OSTI)

    Fukuhara, Mikio; Yoshida, Hajime

    2014-05-15

    We report the room-temperature switching and Coulomb blockade effects in threeterminal glassy alloy field effect transistor (GAFET), using the millimeter sized glassy alloy. By applying dc and ac voltages to a gate electrode, GAFET can be switched from a metallic conducting state to an insulating state with Coulomb oscillation at a period of 14 ?V at room temperature. The transistor showed the three-dimensional Coulomb diamond structure. The fabrication of a low-energy controllable device throws a new light on cluster electronics without wiring.

  4. SRNL PHASE II SHELF LIFE STUDIES - SERIES 1 ROOM TEMPERATURE AND HIGH RELATIVE HUMIDITY

    SciTech Connect (OSTI)

    Mickalonis, J.; Duffey, J.

    2012-09-12

    The Savannah River National Laboratory (SRNL) Phase II, Series 1 shelf-life corrosion testing for the Department of Energy Standard 3013 container is presented and discussed in terms of the localized corrosion behavior of Type 304 stainless steel in contact with moist plutonium oxide and chloride salt mixtures and the potential impact to the 3013 inner container. This testing was designed to address the influence of temperature, salt composition, initial salt moisture, residual stress and type of oxide/salt contact on the relative humidity inside a 3013 container and the initiation and propagation of localized corrosion, especially stress corrosion cracking. The integrated plan is being conducted by Los Alamos National Laboratory and SRNL. SRNL is responsible for conducting a corrosion study in small scale vessels containing plutonium oxide and chloride salts under conditions of humidity, temperature and oxide/salt compositions both within the limits of 3013 storage conditions as well as beyond the 3013 storage requirements to identify margins for minimizing the initiation of stress corrosion cracking. These worst case conditions provide data that bound the material packaged in 3013 containers. Phase I of this testing was completed in 2010. The Phase II, Series 1 testing was performed to verify previous results from Phase I testing and extend our understanding about the initiation of stress corrosion cracking and pitting that occur in 304L under conditions of room temperature, high humidity, and a specific plutonium oxide/salt chemistry. These results will aid in bounding the safe storage conditions of plutonium oxides in 3013 containers. A substantial change in the testing was the addition of the capability to monitor relative humidity during test exposure. The results show that under conditions of high initial moisture ({approx}0.5 wt%) and room temperature stress corrosion cracking occurred in 304L teardrop coupons in contact with the oxide/salt mixture at times as short as 85 days. In all cases, the cracking appeared to be associated with pitting or localized general corrosion. Crack initiation at other sites, such as surface imperfections or inclusions, cannot be excluded. Cracks appear in most cases to initiate through an intergranular mode and transition to a transgranular mode.

  5. Room temperature synthesis of Ni-based alloy nanoparticles by radiolysis.

    SciTech Connect (OSTI)

    Nenoff, Tina Maria; Berry, Donald T.; Lu, Ping; Leung, Kevin; Provencio, Paula Polyak; Stumpf, Roland Rudolph; Huang, Jian Yu; Zhang, Zhenyuan

    2009-09-01

    Room temperature radiolysis, density functional theory, and various nanoscale characterization methods were used to synthesize and fully describe Ni-based alloy nanoparticles (NPs) that were synthesized at room temperature. These complementary methods provide a strong basis in understanding and describing metastable phase regimes of alloy NPs whose reaction formation is determined by kinetic rather than thermodynamic reaction processes. Four series of NPs, (Ag-Ni, Pd-Ni, Co-Ni, and W-Ni) were analyzed and characterized by a variety of methods, including UV-vis, TEM/HRTEM, HAADF-STEM and EFTEM mapping. In the first focus of research, AgNi and PdNi were studied. Different ratios of Ag{sub x}- Ni{sub 1-x} alloy NPs and Pd{sub 0.5}- Ni{sub 0.5} alloy NP were prepared using a high dose rate from gamma irradiation. Images from high-angle annular dark-field (HAADF) show that the Ag-Ni NPs are not core-shell structure but are homogeneous alloys in composition. Energy filtered transmission electron microscopy (EFTEM) maps show the homogeneity of the metals in each alloy NP. Of particular interest are the normally immiscible Ag-Ni NPs. All evidence confirmed that homogeneous Ag-Ni and Pd-Ni alloy NPs presented here were successfully synthesized by high dose rate radiolytic methodology. A mechanism is provided to explain the homogeneous formation of the alloy NPs. Furthermore, studies of Pd-Ni NPs by in situ TEM (with heated stage) shows the ability to sinter these NPs at temperatures below 800 C. In the second set of work, CoNi and WNi superalloy NPs were attempted at 50/50 concentration ratios using high dose rates from gamma irradiation. Preliminary results on synthesis and characterization have been completed and are presented. As with the earlier alloy NPs, no evidence of core-shell NP formation occurs. Microscopy results seem to indicate alloying occurred with the CoNi alloys. However, there appears to be incomplete reduction of the Na{sub 2}WO{sub 4} to form the W{sup 2+} ion in solution; the predominance of WO{sup +} appears to have resulted in a W-O-Ni complex that has not yet been fully characterized.

  6. Synthesis of monodispersed CdSe nanocrystals in poly(styrene-alt-maleic anhydride) at room temperature

    SciTech Connect (OSTI)

    Liu, S.H.; Qian, X.F.; Yuan, J.Y.; Yin, J.; He, R.; Zhu, Z.K

    2003-07-14

    Nanocomposite of CdSe/poly(styrene-alt-maleic anhydride) (PSM) was successfully prepared via an in situ reaction process at room temperature and ambient pressure. Transmission electron microscopy (TEM) analysis revealed that CdSe nanoparticles with a small size and narrow size distribution were obtained. The obtained nanocomposite was also characterized by FT-IR, XRD, ultraviolet-visible, and fluorescence spectroscopy.

  7. Thermodynamic Analysis Of Pure And Impurity Doped Pentaerythritol Tetranitrate Crystals Grown At Room Temperature

    SciTech Connect (OSTI)

    Pitchimani, R; Zheng, W; Simon, S; Hope-Weeks, L; Burnham, A K; Weeks, B L

    2006-05-25

    Pentaerythritol tetranitrate (PETN) powders are used to initiate other explosives. During long-term storage, changes in powder properties can cause changes in the initiation performance. Changes in the morphology and surface area of aging powders are observed due to sublimation and growth of PETN crystals through coarsening mechanisms, (e.g. Ostwald ripening, sintering, etc.). In order to alleviate the sublimation of PETN crystals under service conditions, stabilization methods such as thermal cycling and doping with certain impurities during or after the crystallization of PETN have been proposed. In this report we present our work on the effect of impurities on the morphology and activation energy of the PETN crystals. The pure and impurity doped crystals of PETN were grown from supersaturated acetone solution by solvent evaporation technique at room temperature. The difference in the morphology of the impurity-doped PETN crystal compared to pure crystal was examined by optical microscopy. The changes in the activation energies and the evaporation rates are determined by thermogravimetric (TGA) analyses. Our activation energies of evaporation agree with earlier reported enthalpies of vaporization. The morphology and activation energy of PETN crystals doped with Ca, Na, and Fe cations are similar to that for pure PETN crystal, whereas the Zn-ion-doped PETN crystals have different morphology and decreased activation energy.

  8. Calculation of room temperature conductivity and mobility in tin-based topological insulator nanoribbons

    SciTech Connect (OSTI)

    Vandenberghe, William G. Fischetti, Massimo V.

    2014-11-07

    Monolayers of tin (stannanane) functionalized with halogens have been shown to be topological insulators. Using density functional theory (DFT), we study the electronic properties and room-temperature transport of nanoribbons of iodine-functionalized stannanane showing that the overlap integral between the wavefunctions associated to edge-states at opposite ends of the ribbons decreases with increasing width of the ribbons. Obtaining the phonon spectra and the deformation potentials also from DFT, we calculate the conductivity of the ribbons using the Kubo-Greenwood formalism and show that their mobility is limited by inter-edge phonon backscattering. We show that wide stannanane ribbons have a mobility exceeding 10{sup 6} cm{sup 2}/Vs. Contrary to ordinary semiconductors, two-dimensional topological insulators exhibit a high conductivity at low charge density, decreasing with increasing carrier density. Furthermore, the conductivity of iodine-functionalized stannanane ribbons can be modulated over a range of three orders of magnitude, thus rendering this material extremely interesting for classical computing applications.

  9. Hydrogen-bonding interactions and protic equilibria in room-temperature ionic liquids containing crown ethers.

    SciTech Connect (OSTI)

    Marin, T.; Shkrob, I.; Dietz, M.

    2011-04-14

    Nuclear magnetic resonance (NMR) spectroscopy has been used to study hydrogen-bonding interactions between water, associated and dissociated acids (i.e., nitric and methanesulfonic acids), and the constituent ions of several water-immiscible room-temperature ionic liquids (ILs). In chloroform solutions also containing a crown ether (CE), water molecules strongly associate with the IL ions, and there is rapid proton exchange between these bound water molecules and hydronium associated with the CE. In neat ILs, the acids form clusters differing in their degree of association and ionization, and their interactions with the CEs are weak. The CE can either promote proton exchange between different clusters in IL solution when their association is weak or inhibit such exchange when the association is strong. Even strongly hydrophobic ILs are shown to readily extract nitric acid from aqueous solution, typically via the formation of a 1:1:1 {l_brace}H{sub 3}O{sup +} {center_dot} CE{r_brace}NO{sub 3}{sup -} complex. In contrast, the extraction of methanesulfonic acid is less extensive and proceeds mainly by IL cation-hydronium ion exchange. The relationship of these protic equilibria to the practical application of hydrophobic ILs (e.g., in spent nuclear fuel reprocessing) is discussed.

  10. Sessile dislocations by reactions in NiAl severely deformed at room temperature

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

    Geist, D.; Gammer, C.; Rentenberger, C.; Karnthaler, H. P.

    2015-02-05

    B2 ordered NiAl is known for its poor room temperature (RT) ductility; failure occurs in a brittle like manner even in ductile single crystals deforming by single slip. In the present study NiAl was severely deformed at RT using the method of high pressure torsion (HPT) enabling the hitherto impossible investigation of multiple slip deformation. Methods of transmission electron microscopy were used to analyze the dislocations formed by the plastic deformation showing that as expected dislocations with Burgers vector a(100) carry the plasticity during HPT deformation at RT. In addition, we observe that they often form a(110) dislocations by dislocationmore » reactions; the a(110) dislocations are considered to be sessile based on calculations found in the literature. It is therefore concluded that the frequently encountered 3D dislocation networks containing sessile a(110) dislocations are pinned and lead to deformation-induced embrittlement. In spite of the severe deformation, the chemical order remains unchanged.« less

  11. Molecular and crystal structure of n-hexyloxybenzoic anhydride at low and room temperatures

    SciTech Connect (OSTI)

    Konstantinov, I. I.; Churakov, A. V.; Kuz'mina, L. G.

    2010-09-15

    The crystal and molecular structures of n-hexyloxybenzoic anhydride, C{sub 6}H{sub 13}-O-C{sub 6}H{sub 4}-C(O)-O-C(O)-C{sub 6}H{sub 4}-C{sub 6}H{sub 13}, at low (120 K) and room (296 K) temperatures have been investigated. The molecule has an asymmetric bent structure. The dihedral angle between the benzene ring planes is 48.5 deg. The aliphatic chain on one side of the molecule has a transoid orientation with respect to the 'internal' C4 atom of the closest benzene ring, whereas the aliphatic chain on the other side has a cissoid orientation with respect to the analogous C(4A) atom. The crystal packing does not exhibit any pronounced separation of the crystal space into closely packed aromatic or loosely packed aliphatic regions. No weak directional interactions are observed in the packing; this fact explains the absence of liquid-crystal properties for this compound.

  12. REVIEW Of COMPUTERIZED PROCEDURE GUIDELINES FOR NUCLEAR POWER PLANT CONTROL ROOMS

    SciTech Connect (OSTI)

    David I Gertman; Katya Le Blanc; Ronald L Boring

    2011-09-01

    Computerized procedures (CPs) are recognized as an emerging alternative to paper-based procedures for supporting control room operators in nuclear power plants undergoing life extension and in the concept of operations for advanced reactor designs. CPs potentially reduce operator workload, yield increases in efficiency, and provide for greater resilience. Yet, CPs may also adversely impact human and plant performance if not designed and implemented properly. Therefore, it is important to ensure that existing guidance is sufficient to provide for proper implementation and monitoring of CPs. In this paper, human performance issues were identified based on a review of the behavioral science literature, research on computerized procedures in nuclear and other industries, and a review of industry experience with CPs. The review of human performance issues led to the identification of a number of technical gaps in available guidance sources. To address some of the gaps, we developed 13 supplemental guidelines to support design and safety. This paper presents these guidelines and the case for further research.

  13. New insights into designing metallacarborane based room temperature hydrogen storage media

    SciTech Connect (OSTI)

    Bora, Pankaj Lochan; Singh, Abhishek K.

    2013-10-28

    Metallacarboranes are promising towards realizing room temperature hydrogen storage media because of the presence of both transition metal and carbon atoms. In metallacarborane clusters, the transition metal adsorbs hydrogen molecules and carbon can link these clusters to form metal organic framework, which can serve as a complete storage medium. Using first principles density functional calculations, we chalk out the underlying principles of designing an efficient metallacarborane based hydrogen storage media. The storage capacity of hydrogen depends upon the number of available transition metal d-orbitals, number of carbons, and dopant atoms in the cluster. These factors control the amount of charge transfer from metal to the cluster, thereby affecting the number of adsorbed hydrogen molecules. This correlation between the charge transfer and storage capacity is general in nature, and can be applied to designing efficient hydrogen storage systems. Following this strategy, a search for the best metallacarborane was carried out in which Sc based monocarborane was found to be the most promising H{sub 2} sorbent material with a 9 wt.% of reversible storage at ambient pressure and temperature.

  14. Usage possibilities of diesel aggregate for room heating and electric energy production

    SciTech Connect (OSTI)

    Kegl, K.; Vor Ic, J.

    1998-07-01

    Article shows reasons for introduction of cogeneration generally. The present manner of heating and electricity connection at the Faculty of electrical engineering and computer science in Maribor is described. The idea is to build in the cogeneration complex in heating room next to the existent boilers. Gathered data of electricity and heat demand are presented. Paper deals with question of electrical, heat and fuel connections. Comparison between two types of cogeneration (motor and turbine) helps to make a decision: cogeneration with motor. Depending to the daily electricity demands diagram and arranged heating diagram the authors focused to the small cogeneration (around 200 kWe). Availability of natural gas at the placement of the cogeneration leads us to the gas motor but leaves the diesel engine possibility opened. A brief economical estimation includes common investment costs regarding to the savings of energy and fuel expenses. Payback time calculation gives precedence to the gas motor if diesel is used with motor instead of fuel oil. Except the energy savings there are greater benefits of the cogeneration: it can be good study case for students of electrotechnics as well as future mechanical engineers.

  15. Benefits of Leapfrogging to Superefficiency and Low Global Warming Potential Refrigerants in Room Air Conditioning

    SciTech Connect (OSTI)

    Shah, Nihar K.; Wei, Max; Letschert, Virginie; Phadke, Amol A.

    2015-10-01

    Hydrofluorocarbons (HFCs) emitted from uses such as refrigerants and thermal insulating foam, are now the fastest growing greenhouse gases (GHGs), with global warming potentials (GWP) thousands of times higher than carbon dioxide (CO2). Because of the short lifetime of these molecules in the atmosphere,1 mitigating the amount of these short-lived climate pollutants (SLCPs) provides a faster path to climate change mitigation than control of CO2 alone. This has led to proposals from Africa, Europe, India, Island States, and North America to amend the Montreal Protocol on Substances that Deplete the Ozone Layer (Montreal Protocol) to phase-down high-GWP HFCs. Simultaneously, energy efficiency market transformation programs such as standards, labeling and incentive programs are endeavoring to improve the energy efficiency for refrigeration and air conditioning equipment to provide life cycle cost, energy, GHG, and peak load savings. In this paper we provide an estimate of the magnitude of such GHG and peak electric load savings potential, for room air conditioning, if the refrigerant transition and energy efficiency improvement policies are implemented either separately or in parallel.

  16. Room temperature alcohol sensing by oxygen vacancy controlled TiO{sub 2} nanotube array

    SciTech Connect (OSTI)

    Hazra, A.; Dutta, K.; Bhowmik, B.; Bhattacharyya, P.; Chattopadhyay, P. P.

    2014-08-25

    Oxygen vacancy (OV) controlled TiO{sub 2} nanotubes, having diameters of 5070?nm and lengths of 200250?nm, were synthesized by electrochemical anodization in the mixed electrolyte comprising NH{sub 4}F and ethylene glycol with selective H{sub 2}O content. The structural evolution of TiO{sub 2} nanoforms has been studied by field emission scanning electron microscopy. Variation in the formation of OVs with the variation of the structure of TiO{sub 2} nanoforms has been evaluated by photoluminescence and X-ray photoelectron spectroscopy. The sensor characteristics were correlated to the variation of the amount of induced OVs in the nanotubes. The efficient room temperature sensing achieved by the control of OVs of TiO{sub 2} nanotube array has paved the way for developing fast responding alcohol sensor with corresponding response magnitude of 60.2%, 45.3%, and 36.5% towards methanol, ethanol, and 2-propanol, respectively.

  17. Induced spin-polarization of EuS at room temperature in Ni/EuS multilayers

    SciTech Connect (OSTI)

    Poulopoulos, P.; Goschew, A.; Straub, A.; Fumagalli, P.; Kapaklis, V.; Wolff, M.; Delimitis, A.; Wilhelm, F.; Rogalev, A.; Pappas, S. D.

    2014-03-17

    Ni/EuS multilayers with excellent multilayer sequencing are deposited via e-beam evaporation on the native oxide of Si(100) wafers at 4 × 10{sup −9} millibars. The samples have very small surface and interface roughness and show sharp interfaces. Ni layers are nanocrystalline 4–8 nm thick and EuS layers are 2–4 nm thick and are either amorphous or nanocrystalline. Unlike for Co/EuS multilayers, all Eu ions are in divalent (ferromagnetic) state. We show a direct antiferromagnetic coupling between EuS and Ni layers. At room temperature, the EuS layers are spin-polarized due to the proximity of Ni. Therefore, Ni/EuS is a candidate for room-temperature spintronics applications.

  18. Human factors design, verification, and validation for two types of control room upgrades at a nuclear power plant

    SciTech Connect (OSTI)

    Boring, Laurids Ronald

    2014-10-01

    This paper describes the NUREG-0711 based human factors engineering (HFE) phases and associated elements required to support design, verification and validation (V&V), and implementation of a new plant process computer (PPC) and turbine control system (TCS) at a representative nuclear power plant. This paper reviews ways to take a human-system interface (HSI) specification and use it when migrating legacy PPC displays or designing displays with new functionality. These displays undergo iterative usability testing during the design phase and then undergo an integrated system validation (ISV) in a full scope control room training simulator. Following the successful demonstration of operator performance with the systems during the ISV, the new system is implemented at the plant, first in the training simulator and then in the main control room.

  19. High-Permeance Room-Temperature Ionic-Liquid-Based Membranes for CO2/N-2 Separation

    SciTech Connect (OSTI)

    Zhou, JS; Mok, MM; Cowan, MG; McDanel, WM; Carlisle, TK; Gin, DL; Noble, RD

    2014-12-24

    We have developed and fabricated thin-film composite (TFC) membranes with an active layer consisting of a room-temperature ionic liquid/polymerized (room-temperature ionic liquid) [i.e., (RTIL)/poly(RTIL)] composite material. The resulting membrane has a CO2 permeance of 6100 +/- 400 GPU (where 1 GPU = 10(-6) cm(3)/(cm(2) s cmHg)) and an ideal CO2/N-2 selectivity of 22 +/- 2. This represents a new membrane with state-of-the-art CO2 permeance and good CO2/N-2 selectivity. To our knowledge, this is the first example of a TFC gas separation membrane composed of an RTIL-containing active layer.

  20. Flexible micro-supercapacitor based on in-situ assembled graphene on metal template at room temperature

    SciTech Connect (OSTI)

    Wu, ZK; Lin, ZY; Li, LY; Song, B; Moon, KS; Bai, SL; Wong, CP

    2014-11-01

    Graphene based micro-supercapacitors (MSCs) have been extensively studied in recent years; however, few of them report room temperature fabricating methods for flexible MSC. Here we developed a convenient procedure based on simultaneous self-assembly and reduction of graphene oxide (GO) on Cu/Au interdigit at room temperature. The as-produced MSC shows a specific areal capacitance of 0.95 mF cm(-2) and maintains 98.3% after 11,000 cycles of charge and discharge. Extremely small relaxation time constants of 1.9 ms in aqueous electrolyte and 4.8 ms in gelled electrolyte are achieved. Also the device shows great flexibility and retains 93.5% of the capacitance after 5000 times of bending and twisting tests. (C) 2014 Elsevier Ltd. All rights reserved.

  1. Wide-bandgap high-mobility ZnO thin-film transistors produced at room temperature

    SciTech Connect (OSTI)

    Fortunato, Elvira M.C.; Barquinha, Pedro M.C.; Pimentel, Ana C.M.B.G.; Goncalves, Alexandra M.F.; Marques, Antonio J.S.; Martins, Rodrigo F.P.; Pereira, Luis M.N.

    2004-09-27

    We report high-performance ZnO thin-film transistor (ZnO-TFT) fabricated by rf magnetron sputtering at room temperature with a bottom gate configuration. The ZnO-TFT operates in the enhancement mode with a threshold voltage of 19 V, a saturation mobility of 27 cm{sup 2}/V s, a gate voltage swing of 1.39 V/decade and an on/off ratio of 3x10{sup 5}. The ZnO-TFT presents an average optical transmission (including the glass substrate) of 80% in the visible part of the spectrum. The combination of transparency, high mobility, and room-temperature processing makes the ZnO-TFT a very promising low-cost optoelectronic device for the next generation of invisible and flexible electronics.

  2. Optical diode effect at spin-wave excitations in the room-temperature multiferroic BiFeO3.

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

    Kezsmarki, I.; Nagel, U.; Bordacs, S.; Fishman, Randy Scott; Lee, Jun Hee; Yi, Hee Taek; Cheong, Sang-Wook; Room, T.

    2015-09-15

    The ability to read and write a magnetic state current-free by an electric voltage would provide a huge technological advantage. Dynamic or optical ME effects are equally interesting, because they give rise to unidirectional light propagation as recently observed in low-temperature multiferroics. This phenomenon, if realized at room temperature, would allow the development of optical diodes which transmit unpolarized light in one, but not in the opposite, direction. Here, we report strong unidirectional transmission in the room-temperature multiferroic BiFeO3 over the gigahertz-terahertz frequency range. The supporting theory attributes the observed unidirectional transmission to the spin-current-driven dynamic ME effect. Our findingsmore » are an important step toward the realization of optical diodes, supplemented by the ability to switch the transmission direction with a magnetic or electric field.« less

  3. Room temperature nonlinear magnetoelectric effect in lead-free and Nb-doped AlFeO{sub 3} compositions

    SciTech Connect (OSTI)

    Ctica, Luiz F.; Santos, Guilherme M.; Santos, Ivair A.; Freitas, Valdirlei F.; Coelho, Adelino A.; Pal, Madhuparna; Guo, Ruyan; Bhalla, Amar S.; Garcia, Ducinei; Eiras, Jos A.

    2015-02-14

    It is still a challenging problem to obtain technologically useful materials displaying strong magnetoelectric coupling at room temperature. In the search for new effects and materials to achieve this kind of coupling, a nonlinear magnetoelectric effect was proposed in the magnetically disordered relaxor ferroelectric materials. In this context, the aluminum iron oxide (AlFeO{sub 3}), a room temperature ferroelectric relaxor and magnetic spin glass compound, emerges as an attractive lead-free magnetoelectric material along with nonlinear magnetoelectric effects. In this work, static, dynamic, and temperature dependent ferroic and magnetoelectric properties in lead-free AlFeO{sub 3} and 2 at.?% Nb-doped AlFeO{sub 3} multiferroic magnetoelectric compositions are studied. Pyroelectric and magnetic measurements show changes in ferroelectric and magnetic states close to each other (?200?K). The magnetoelectric coefficient behavior as a function of H{sub bias} suggests a room temperature nonlinear magnetoelectric coupling in both single-phase and Nb-doped AlFeO{sub 3}-based ceramic compositions.

  4. Symmetries and multiferroic properties of novel room-temperature magnetoelectrics: Lead iron tantalate – lead zirconate titanate (PFT/PZT)

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

    Sanchez, Dilsom A.; Ortega, N.; Kumar, Ashok; Roque-Malherbe, R.; Polanco, R.; Scott, J. F.; Katiyar, Ram S.

    2011-12-01

    Mixing 60-70% lead zirconate titanate with 40-30% lead iron tantalate produces a single-phase, low-loss, room-temperature multiferroic with magnetoelectric coupling: (PbZr₀.₅₃Ti₀.₄₇O₃) (1-x)- (PbFe₀.₅Ta₀.₅O₃)x. The present study combines x-ray scattering, magnetic and polarization hysteresis in both phases, plus a second-order dielectric divergence (to epsilon = 6000 at 475 K for 0.4 PFT; to 4000 at 520 K for 0.3 PFT) for an unambiguous assignment as a C2v-C4v (Pmm2-P4mm) transition. The material exhibits square saturated magnetic hysteresis loops with 0.1 emu/g at 295 K and saturation polarization Pr = 25 μC/cm², which actually increases (to 40 μC/cm²) in the high-T tetragonal phase, representingmore » an exciting new room temperature oxide multiferroic to compete with BiFeO₃. Additional transitions at high temperatures (cubic at T>1300 K) and low temperatures (rhombohedral or monoclinic at T<250 K) are found. These are the lowest-loss room-temperature multiferroics known, which is a great advantage for magnetoelectric devices.« less

  5. Digital Full-Scope Simulation of a Conventional Nuclear Power Plant Control Room, Phase 2: Installation of a Reconfigurable Simulator to Support Nuclear Plant Sustainability

    SciTech Connect (OSTI)

    Ronald L. Boring; Vivek Agarwal; Kirk Fitzgerald; Jacques Hugo; Bruce Hallbert

    2013-03-01

    The U.S. Department of Energys Light Water Reactor Sustainability program has developed a control room simulator in support of control room modernization at nuclear power plants in the U.S. This report highlights the recent completion of this reconfigurable, full-scale, full-scope control room simulator buildout at the Idaho National Laboratory. The simulator is fully reconfigurable, meaning it supports multiple plant models developed by different simulator vendors. The simulator is full-scale, using glasstop virtual panels to display the analog control boards found at current plants. The present installation features 15 glasstop panels, uniquely achieving a complete control room representation. The simulator is also full-scope, meaning it uses the same plant models used for training simulators at actual plants. Unlike in the plant training simulators, the deployment on glasstop panels allows a high degree of customization of the panels, allowing the simulator to be used for research on the design of new digital control systems for control room modernization. This report includes separate sections discussing the glasstop panels, their layout to mimic control rooms at actual plants, technical details on creating a multi-plant and multi-vendor reconfigurable simulator, and current efforts to support control room modernization at U.S. utilities. The glasstop simulator provides an ideal testbed for prototyping and validating new control room concepts. Equally importantly, it is helping create a standardized and vetted human factors engineering process that can be used across the nuclear industry to ensure control room upgrades maintain and even improve current reliability and safety.

  6. SU-D-BRE-03: Dosimetric Impact of In-Air Spot Size Variations for Commissioning a Room-Matched Beam Model for Pencil Beam Scanning Proton Therapy

    SciTech Connect (OSTI)

    Zhang, Y; Giebeler, A; Mascia, A; Piskulich, F; Perles, L; Lepage, R; Dong, L

    2014-06-01

    Purpose: To quantitatively evaluate dosimetric consequence of spot size variations and validate beam-matching criteria for commissioning a pencil beam model for multiple treatment rooms. Methods: A planning study was first conducted by simulating spot size variations to systematically evaluate dosimetric impact of spot size variations in selected cases, which was used to establish the in-air spot size tolerance for beam matching specifications. A beam model in treatment planning system was created using in-air spot profiles acquired in one treatment room. These spot profiles were also acquired from another treatment room for assessing the actual spot size variations between the two treatment rooms. We created twenty five test plans with targets of different sizes at different depths, and performed dose measurement along the entrance, proximal and distal target regions. The absolute doses at those locations were measured using ionization chambers at both treatment rooms, and were compared against the calculated doses by the beam model. Fifteen additional patient plans were also measured and included in our validation. Results: The beam model is relatively insensitive to spot size variations. With an average of less than 15% measured in-air spot size variations between two treatment rooms, the average dose difference was ?0.15% with a standard deviation of 0.40% for 55 measurement points within target region; but the differences increased to 1.4%1.1% in the entrance regions, which are more affected by in-air spot size variations. Overall, our single-room based beam model in the treatment planning system agreed with measurements in both rooms < 0.5% within the target region. For fifteen patient cases, the agreement was within 1%. Conclusion: We have demonstrated that dosimetrically equivalent machines can be established when in-air spot size variations are within 15% between the two treatment rooms.

  7. FINAL REPORT: Room Temperature Hydrogen Storage in Nano-Confined Liquids

    SciTech Connect (OSTI)

    VAJO, JOHN

    2014-06-12

    DOE continues to seek solid-state hydrogen storage materials with hydrogen densities of ≥6 wt% and ≥50 g/L that can deliver hydrogen and be recharged at room temperature and moderate pressures enabling widespread use in transportation applications. Meanwhile, development including vehicle engineering and delivery infrastructure continues for compressed-gas hydrogen storage systems. Although compressed gas storage avoids the materials-based issues associated with solid-state storage, achieving acceptable volumetric densities has been a persistent challenge. This project examined the possibility of developing storage materials that would be compatible with compressed gas storage technology based on enhanced hydrogen solubility in nano-confined liquid solvents. These materials would store hydrogen in molecular form eliminating many limitations of current solid-state materials while increasing the volumetric capacity of compressed hydrogen storage vessels. Experimental methods were developed to study hydrogen solubility in nano-confined liquids. These methods included 1) fabrication of composites comprised of volatile liquid solvents for hydrogen confined within the nano-sized pore volume of nanoporous scaffolds and 2) measuring the hydrogen uptake capacity of these composites without altering the composite composition. The hydrogen storage capacities of these nano-confined solvent/scaffold composites were compared with bulk solvents and with empty scaffolds. The solvents and scaffolds were varied to optimize the enhancement in hydrogen solubility that accompanies confinement of the solvent. In addition, computational simulations were performed to study the molecular-scale structure of liquid solvent when confined within an atomically realistic nano-sized pore of a model scaffold. Confined solvent was compared with similar simulations of bulk solvent. The results from the simulations were used to formulate a mechanism for the enhanced solubility and to guide the experiments. Overall, the combined experimental measurements and simulations indicate that hydrogen storage based on enhanced solubility in nano-confined liquids is unlikely to meet the storage densities required for practical use. Only low gravimetric capacities of < 0.5 wt% were achieved. More importantly, solvent filled scaffolds had lower volumetric capacities than corresponding empty scaffolds. Nevertheless, several of the composites measured did show significant (>~ 5x) enhanced hydrogen solubility relative to bulk solvent solubility, when the hydrogen capacity was attributed only to dissolution in the confined solvent. However, when the hydrogen capacity was compared to an empty scaffold that is known to store hydrogen by surface adsorption on the scaffold walls, including the solvent always reduced the hydrogen capacity. For the best composites, this reduction relative to an empty scaffold was ~30%; for the worst it was ~90%. The highest capacities were obtained with the largest solvent molecules and with scaffolds containing 3- dimensionally confined pore geometries. The simulations suggested that the capacity of the composites originated from hydrogen adsorption on the scaffold pore walls at sites not occupied by solvent molecules. Although liquid solvent filled the pores, not all of the adsorption sites on the pore walls were occupied due to restricted motion of the solvent molecules within the confined pore space.

  8. Low and Room Temperature X-ray Structures of Protein Kinase A Ternary Complexes Shed New Light on Its Activity

    SciTech Connect (OSTI)

    Fisher, Zoe; Hanson, Leif; Kovalevsky, Andrey; Langan, Paul

    2012-01-01

    Posttranslational protein phosphorylation by protein kinase A (PKA) is a ubiquitous signaling mechanism which regulates many cellular processes. A low temperature X-ray structure of the PKA catalytic subunit (PKAc) ternary complex with ATP and a 20-residue peptidic inhibitor (IP20) at the physiological Mg2+ concentration of < 0.5mM revealed a single metal ion in the active site. The lack of a second metal in the low-temperature LT-PKAc-MgATP-IP20 renders the and phosphoryl groups of ATP to be very flexibile, with high thermal B-factors. Thus, the second metal is crucial for tight positioning of the terminal phosphoryl for transfer to a substrate, as demonstrated by comparison of the former structure with LT-PKAc- Mg2ATP-IP20 complex. In addition to the kinase activity, PKAc is also able to slowly catalyze the hydrolysis of ATP using a water molecule as a substrate. We found that at room temperature under X-ray irradiation ATP can be readily and completely hydrolyzed into ATP and a free phosphate ion in the crystals of the ternary complex LT-PKAc- Mg2ATP-IP20. The cleavage of ATP may be aided by X-ray-born free hydroxyl radicals, a very reactive chemical species, that move quickly through the crystal at room temperature. The phosphate anion is clearly visible in the electron density maps; it remains in the active site, but slides about 2 from its position in ATP toward Ala21 of IP20 that mimics the phosphorylation site. The phosphate, thus, pushes the peptidic inhibitor away from the product ADP, while resulting in dramatic conformational changes of IP20 terminal residues 24 and 25. X-ray structures of PKAc in complex with non-hydrolyzable ATP analog, AMPPNP, at both room and low temperatures demonstrated no temperature effects on the conformation and position of IP20.

  9. Photochemical preparation of CdS hollow microspheres at room temperature and their use in visible-light photocatalysis

    SciTech Connect (OSTI)

    Huang Yuying; Sun Fengqiang; Wu Tianxing; Wu Qingsong; Huang Zhong; Su Heng; Zhang Zihe

    2011-03-15

    CdS hollow microspheres have been successfully prepared by a photochemical preparation technology at room temperature, using polystyrene latex particles as templates, CdSO{sub 4} as cadmium source and Na{sub 2}S{sub 2}O{sub 3} as both sulphur source and photo-initiator. The process involved the deposition of CdS nanoparticles on the surface of polystyrene latex particles under the irradiation of an 8 W UV lamp and the subsequent removal of the latex particles by dispersing in dichloromethane. Photochemical reactions at the sphere/solution interface should be responsible for the formation of hollow spheres. The as-prepared products were characterized by X-ray diffraction, transmission electron microscopy and scanning electron microscopy. Such hollow spheres could be used in photocatalysis and showed high photocatalytic activities in photodegradation of methyl blue (MB) in the presence of H{sub 2}O{sub 2}. The method is green, simple, universal and can be extended to prepare other sulphide and oxide hollow spheres. -- Graphical abstract: Taking polystyrene spheres dispersed in a precursor solution as templates, CdS hollow microspheres composed of nanoparticles were successfully prepared via a new photochemical route at room temperature. Display Omitted Research highlights: {yields} Photochemical method was first employed to prepare hollow microspheres. {yields} CdS hollow spheres were first prepared at room temperature using latex spheres. {yields} The polystyrene spheres used as templates were not modified with special groups. {yields}The CdS hollow microspheres showed high visible-light photocatalytic activities.

  10. Infrared study on room-temperature atomic layer deposition of HfO{sub 2} using tetrakis(ethylmethylamino)hafnium and remote plasma-excited oxidizing agents

    SciTech Connect (OSTI)

    Kanomata, Kensaku [Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510, Japan and Japan Society for the Promotion of Science, 5-3-1 Kojimachi, Chiyoda-ku, Tokyo 102-0083 (Japan); Ohba, Hisashi; Pungboon Pansila, P.; Ahmmad, Bashir; Kubota, Shigeru; Hirahara, Kazuhiro; Hirose, Fumihiko, E-mail: fhirose@yz.yamagata-u.ac.jp [Graduate School of Science and Engineering, Yamagata University, 4-3-16 Jonan, Yonezawa 992-8510 (Japan)

    2015-01-01

    Room-temperature atomic layer deposition (ALD) of HfO{sub 2} was examined using tetrakis (ethylmethylamino)hafnium (TEMAH) and remote plasma-excited water and oxygen. A growth rate of 0.26?nm/cycle at room temperature was achieved, and the TEMAH adsorption and its oxidization on HfO{sub 2} were investigated by multiple internal reflection infrared absorption spectroscopy. It was observed that saturated adsorption of TEMAH occurs at exposures of ?1??10{sup 5}?L (1 L?=?1??10{sup ?6} Torr s) at room temperature, and the use of remote plasma-excited water and oxygen vapor is effective in oxidizing the TEMAH molecules on the HfO{sub 2} surface, to produce OH sites. The infrared study suggested that HfOH plays a role as an adsorption site for TEMAH. The reaction mechanism of room temperature HfO{sub 2} ALD is discussed in this paper.

  11. Duplex precipitates and their effects on the room-temperature fracture behaviour of a NiAl-strengthened ferritic alloy

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

    Sun, Zhiqian; Song, Gian; Ilavsky, Jan; Liaw, Peter K.

    2015-03-23

    Duplex precipitates are presented in a NiAl-strengthened ferritic alloy. They were characterized by the ultra-small angle X-ray scattering and transmission electron microscope. Fine cooling precipitates with the size of several to tens of nanometres harden the matrix considerably at room temperature. Cracks are likely to initiate from precipitates, and coalesce and propagate quickly through the matrix due to the excessive hardening effect of cooling precipitates, which lead to the premature fracture of NiAl-strengthened ferritic alloys.

  12. The Committee met at 8:30 a.m. in Room 8E-089 of the Forrestal

    U.S. Energy Information Administration (EIA) Indexed Site

    FALL MEETING THURSDAY, NOVEMBER 2, 2000 + + + + + The Committee met at 8:30 a.m. in Room 8E-089 of the Forrestal Building, U.S. Department of Energy, 1000 Independence Avenue, S.W., Washington, D.C., Dr. Carol A. Gotway Crawford, Chair, presiding. PRESENT: CAROL A. GOTTWAY CRAWFORD, PhD Chair JOHNNY BLAIR Guest F. JAY BREIDT, PhD Member THOMAS C. COWING, PhD Member JAMES K. HAMMITT, PhD Member NICOLAS HENGARTNER Guest CALVIN A. KENT, PhD Member W. DAVID MONTGOMERY, PhD Member WILLIAM G. MOSS,

  13. The Committee met at 8:55 a.m., in Conference Room 8E-089 in

    U.S. Energy Information Administration (EIA) Indexed Site

    APRIL 14, 2000 + + + + + The Committee met at 8:55 a.m., in Conference Room 8E-089 in the Forrestal Building at 10th Street and Independence Avenue, S.W., Washington, D.C., Carol Gotway Crawford, Chair, presiding. MEMBERS PRESENT: CAROL A. GOTWAY CRAWFORD, Ph.D., Chair JAY BREIDT, Ph.D., Member THOMAS G. COWING, Ph.D., Member CALVIN A. KENT, Ph.D., Member W. DAVID MONTGOMERY, Ph.D., Member WILLIAM G. MOSS, Ph.D., Member POLLY A. PHIPPS, Ph.D., Member RANDY R. SITTER, Ph.D., Member ROY WHITMORE,

  14. Peculiarly strong room-temperature ferromagnetism from low Mn-doping in ZnO grown by molecular beam epitaxy

    SciTech Connect (OSTI)

    Zuo Zheng; Morshed, Muhammad; Liu Jianlin; Beyermann, W. P.; Zheng Jianguo; Xin Yan

    2013-03-15

    Strong room-temperature ferromagnetism is demonstrated in single crystalline Mn-doped ZnO thin films grown by molecular beam epitaxy. Very low Mn doping concentration is investigated, and the measured magnetic moment is much larger than what is expected for an isolated ion based on Hund's rules. The ferromagnetic behavior evolves with Mn concentration. Both magnetic anisotropy and anomalous Hall effect confirm the intrinsic nature of ferromagnetism. While the Mn dopant plays a crucial role, another entity in the system is needed to explain the observed large magnetic moments.

  15. Thin-film transistors based on p-type Cu{sub 2}O thin films produced at room temperature

    SciTech Connect (OSTI)

    Fortunato, Elvira; Figueiredo, Vitor; Barquinha, Pedro; Elamurugu, Elangovan; Goncalves, Goncalo; Martins, Rodrigo; Park, Sang-Hee Ko; Hwang, Chi-Sun

    2010-05-10

    Copper oxide (Cu{sub 2}O) thin films were used to produce bottom gate p-type transparent thin-film transistors (TFTs). Cu{sub 2}O was deposited by reactive rf magnetron sputtering at room temperature and the films exhibit a polycrystalline structure with a strongest orientation along (111) plane. The TFTs exhibit improved electrical performance such as a field-effect mobility of 3.9 cm{sup 2}/V s and an on/off ratio of 2x10{sup 2}.

  16. Deployment of a Full-Scope Commercial Nuclear Power Plant Control Room Simulator at the Idaho National Laboratory

    SciTech Connect (OSTI)

    Ronald Boring; Julius Persensky; Kenneth Thomas

    2011-09-01

    The INL operates the HSSL to conduct research in the design and evaluation of advanced reactor control rooms, integration of intelligent support systems to assist operators, development and assessment of advanced human performance models, and visualizations to assess advanced operational concepts across various infrastructures. This advanced facility consists of a reconfigurable simulator and a virtual reality capability (known as the Computer-Aided Virtual Environment (CAVE)) (Figure 2). It supports human factors research, including human-in-the-loop performance, HSI, and analog and digital hybrid control displays. It can be applied to the development and evaluation of control systems and displays for complex systems such as existing and advanced NPP control rooms, command and control systems, and advance emergency operations centers. The HSSL incorporates a reconfigurable control room simulator, which is currently housed in the Center for Advanced Energy Studies (CAES), a joint venture of the DOE and the Idaho University System. The simulator is a platform- and plant-neutral environment intended for full-scope and part-task testing of operator performance in various control room configurations. The simulator is not limited to a particular plant or even simulator architecture. It can support engineering simulator platforms from multiple vendors using digital interfaces. Due to its ability to be reconfigured, it is possible to switch the HSI - not just to digital panels but also to different control modalities such as those using greater plant automation or intelligent alarm filtering. The simulator currently includes three operator workstations, each capable of driving up to eight 30-inch monitors. The size and number of monitors varies depending on the particular front-end simulator deployed for a simulator study. These operator workstations would typically be used for the shift supervisor or senior reactor operator, reactor operator, and assistant reactor operator in current US NPPs. In addition to the three workstations, information can be shared between the workstations and further displayed on a large-screen overview display or a panel mimic. An 82-inch high-definition display is commonly used for the overview display.

  17. Room temperature strain rate sensitivity in precursor derived HfO{sub 2}/Si-C-N(O) ceramic nanocomposites

    SciTech Connect (OSTI)

    Sujith, Ravindran; Kumar, Ravi

    2014-01-15

    Investigation on the room temperature strain rate sensitivity using depth sensing nanoindentation is carried out on precursor derived HfO{sub 2}/Si-C-N(O) ceramic nanocomposite sintered using pulsed electric current sintering. Using constant load method the strain rate sensitivity values are estimated. Lower strain rate sensitivity of ? 3.7 10{sup ?3} is observed and the limited strain rate sensitivity of these ceramic nanocomposites is explained in terms of cluster model. It is concluded that presence of amorphous Si-C-N(O) clusters are responsible for the limited flowability in these ceramics.

  18. Electronic Docket Room (e-Docket Room)

    Broader source: Energy.gov [DOE]

    E-Docket -- Browse  Searchable Database of  Current and Historical Applications Submitted to DOE (click SHOW for drop down menu)

  19. Spin-Induced Polarizations and Nonreciprocal Directional Dichroism of the Room-Temperature Multiferroic BiFeO3

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

    Fishman, Randy Scott; Lee, Jun Hee; Bordacs, Sandor; Kezsmarki, Istvan; Nagel, Urmas; Room, Toomas

    2015-09-14

    A microscopic model for the room-temperature multiferroic BiFeO3 that includes two Dzyaloshinskii-Moriya interactions and single-ion anisotropy along the ferroelectric polarization predicts both the zero-field spectroscopic modes as well as their splitting and evolution in a magnetic field. Due to simultaneously broken time-reversal and spatial-inversion symmetries, the absorption of light changes as the magnetic field or the direction of light propagation is reversed. We discuss three physical mechanisms that may contribute to this absorption asymmetry known as directional dichroism: the spin current, magnetostriction, and single-ion anisotropy. We conclude that the directional dichroism in BiFeO3 is dominated by the spin-current polarization andmore » is insensitive to the magnetostriction and easy-axis anisotropy. With three independent spin-current parameters, our model accurately describes the directional dichroism observed for magnetic field along [1, -1, 0]. Since some modes are almost transparent to light traveling in one direction but opaque for light traveling in the opposite direction, BiFeO3 can be used as a room-temperature optical diode at certain frequencies in the GHz to THz range. This work demonstrates that an analysis of the directional dichroism spectra based on an effective spin model supplemented by first-principles calculations can produce a quantitative microscopic theory of the magnetoelectric couplings in multiferroic materials.« less

  20. Operando NMR and XRD study of chemically synthesized LiCx oxidation in a dry room environment

    SciTech Connect (OSTI)

    Sacci, Robert L.; Gill, Lance W.; Hagaman, Edward W.; Dudney, Nancy J.

    2015-08-01

    We test the stability of pre-lithiated graphite anodes for Li-ion batteries in a dry room battery processing room. The reaction between LiCx and laboratory air was followed using operando NMR and x-ray diffraction as these methods are sensitive to change in Li stoichiometry in graphite. There is minimal reactivity between LiC6 and N2, CO2 or O2; however, LiC6 reacts with moisture to form lithium (hydr)oxide. The reaction rate follows zero-order kinetics with respects to intercalated lithium suggesting that lithium transport through the graphite is fast. The reaction mechanism occurs by sequential formation of higher stages LiC12, then LiC18, and then LiC24 as the hydrolysis proceeds to the formation of LixOHy and graphite end products. Slowing down the formation rate of the LixOHy passivation layer stabilizes of the higher stages.

  1. Operando NMR and XRD study of chemically synthesized LiCx oxidation in a dry room environment

    SciTech Connect (OSTI)

    Sacci, Robert L.; Gill, Lance W.; Hagaman, Edward W.; Dudney, Nancy J.

    2015-01-01

    We test the stability of pre-lithiated graphite anodes for Li-ion batteries in a dry room battery processing room. The reaction between LiCx and laboratory air was followed using operando NMR and x-ray diffraction as these methods are sensitive to change in Li stoichiometry in graphite. There is minimal reactivity between LiC6 and N2, CO2 or O2; however, LiC6 reacts with moisture to form lithium (hydr)oxide. The reaction rate follows zero-order kinetics with respects to intercalated lithium suggesting that lithium transport through the graphite is fast. The reaction mechanism occurs by sequential formation of higher stages LiC12, then LiC18, and then LiC24 as the hydrolysis proceeds to the formation of LixOHy and graphite end products. Slowing down the formation rate of the LixOHy passivation layer stabilizes of the higher stages.

  2. Operando NMR and XRD study of chemically synthesized LiCx oxidation in a dry room environment

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

    Sacci, Robert L.; Gill, Lance W.; Hagaman, Edward W.; Dudney, Nancy J.

    2015-01-01

    We test the stability of pre-lithiated graphite anodes for Li-ion batteries in a dry room battery processing room. The reaction between LiCx and laboratory air was followed using operando NMR and x-ray diffraction as these methods are sensitive to change in Li stoichiometry in graphite. There is minimal reactivity between LiC6 and N2, CO2 or O2; however, LiC6 reacts with moisture to form lithium (hydr)oxide. The reaction rate follows zero-order kinetics with respects to intercalated lithium suggesting that lithium transport through the graphite is fast. The reaction mechanism occurs by sequential formation of higher stages LiC12, then LiC18, and thenmore » LiC24 as the hydrolysis proceeds to the formation of LixOHy and graphite end products. Slowing down the formation rate of the LixOHy passivation layer stabilizes of the higher stages.« less

  3. Hydrogen incorporation induced metal-semiconductor transition in ZnO:H thin films sputtered at room temperature

    SciTech Connect (OSTI)

    Singh, Anil; Chaudhary, Sujeet; Pandya, D. K.

    2013-04-29

    The room temperature deposited ZnO:H thin films having high conductivity of 500 Ohm-Sign {sup -1} cm{sup -1} and carrier concentration reaching 1.23 Multiplication-Sign 10{sup 20} cm{sup -3} were reactively sputter deposited on glass substrates in the presence of O{sub 2} and 5% H{sub 2} in Ar. A metal-semiconductor transition at 165 K is induced by the increasing hydrogen incorporation in the films. Hydrogen forms shallow donor complex with activation energy of {approx}10-20 meV at oxygen vacancies (V{sub O}) leading to increase in carrier concentration. Hydrogen also passivates V{sub O} and V{sub Zn} causing {approx}4 times enhancement of mobility to 25.4 cm{sup 2}/V s. These films have potential for use in transparent flexible electronics.

  4. Metallic transport and large anomalous Hall effect at room temperature in ferrimagnetic Mn{sub 4}N epitaxial thin film

    SciTech Connect (OSTI)

    Shen, Xi; Shigematsu, Kei; Chikamatsu, Akira Fukumura, Tomoteru; Hirose, Yasushi; Hasegawa, Tetsuya

    2014-08-18

    We report the electrical transport properties of ferrimagnetic Mn{sub 4}N (001) epitaxial thin films grown by pulsed laser deposition on MgO (001) substrates. The Mn{sub 4}N thin films were tetragonally distorted with a ratio of out-of-plane to in-plane lattice constants of 0.987 and showed perpendicular magnetic anisotropy with an effective magnetic anisotropy constant of 0.16?MJ/m{sup 3}, which is comparable with that of a recently reported molecular-beam-epitaxy-grown film. The thin films exhibited metallic transport with a room temperature resistivity of 125??? cm in addition to a large anomalous Hall effect with a Hall angle tangent of 0.023.

  5. Room-temperature ferromagnetism in Co and Nb co-doped TiO{sub 2} nanoparticles

    SciTech Connect (OSTI)

    Hachisu, M.; Mori, K.; Hyodo, K.; Morimoto, S.; Yamazaki, T.; Ichiyanagi, Y.

    2015-02-27

    Co- and Nb-doped TiO{sub 2} nanoparticles encapsulated with amorphous SiO{sub 2} were synthesized by our novel preparation method. An anatase TiO{sub 2} single-phase structure was confirmed using X-ray diffraction. The particle size could be controlled to be about 5 nm. The composition of these nanoparticles was investigated by X-ray fluorescence analysis. X-ray absorption near-edge structure spectra showed that the Ti{sup 4+} and Co{sup 2+} states were dominant in our prepared samples. A reduction in the coordination number was also confirmed. The dependence of the electrical conductivity on the frequency was measured by an LCR meter, and the carrier concentration was determined. The magnetization curves for the nanoparticles indicated ferromagnetic behavior at room temperature. We concluded that the ferromagnetism originated in oxygen vacancies around the transition metal ions.

  6. Room temperature continuous wave InGaAsN quantum well vertical cavity lasers emitting at 1.3 um

    SciTech Connect (OSTI)

    CHOQUETTE,KENT D.; KLEM,JOHN F.; FISCHER,ARTHUR J.; SPAHN,OLGA B.; ALLERMAN,ANDREW A.; FRITZ,IAN J.; KURTZ,STEVEN R.; BREILAND,WILLIAM G.; SIEG,ROBERT M.; GEIB,KENT M.; SCOTT,J.W.; NAONE,R.L.

    2000-06-05

    Selectively oxidized vertical cavity lasers emitting at 1294 nm using InGaAsN quantum wells are reported for the first time which operate continuous wave at and above room temperature. The lasers employ two n-type Al{sub 0.94}Ga{sub 0.06}As/GaAs distributed Bragg reflectors each with a selectively oxidized current aperture adjacent to the optical cavity, and the top output mirror contains a tunnel junction to inject holes into the active region. Continuous wave single mode lasing is observed up to 55 C. These lasers exhibit the longest wavelength reported to date for vertical cavity surface emitting lasers grown on GaAs substrates.

  7. Threshold of photoelectron emission from CN{sub x} films deposited at room temperature and at 500 deg. C

    SciTech Connect (OSTI)

    Sago, Genki; Li Wanyan; Goto, Keisuke; Ichikawa, Yo; Ishida, Yoshihisa; Kohiki, Shigemi

    2004-10-15

    The threshold of photoelectron emission was measured for amorphous CN{sub x} films deposited at room temperature (RT) and at 500 deg. C. The x values of the films deposited at RT and at 500 deg. C by magnetron sputtering of a graphite target in a mixed N{sub 2}/Ar gas were 0.6 and 0.3, respectively. Ratios of the sp{sup 2}- to sp{sup 3}-hybridized components of both C and N for the film deposited at 500 deg. C were larger by {approx_equal}4 times than those for the film deposited at RT. The onsets of the electron emission by photon irradiation were 5.0 and 4.7 eV for the films deposited at RT and at 500 deg. C, respectively.

  8. Non-adiabatic ab initio molecular dynamics of supersonic beam epitaxy of silicon carbide at room temperature

    SciTech Connect (OSTI)

    Taioli, Simone; Garberoglio, Giovanni; Simonucci, Stefano; Beccara, Silvio a; Aversa, Lucrezia; Nardi, Marco; Verucchi, Roberto; Iannotta, Salvatore; Dapor, Maurizio; and others

    2013-01-28

    In this work, we investigate the processes leading to the room-temperature growth of silicon carbide thin films by supersonic molecular beam epitaxy technique. We present experimental data showing that the collision of fullerene on a silicon surface induces strong chemical-physical perturbations and, for sufficient velocity, disruption of molecular bonds, and cage breaking with formation of nanostructures with different stoichiometric character. We show that in these out-of-equilibrium conditions, it is necessary to go beyond the standard implementations of density functional theory, as ab initio methods based on the Born-Oppenheimer approximation fail to capture the excited-state dynamics. In particular, we analyse the Si-C{sub 60} collision within the non-adiabatic nuclear dynamics framework, where stochastic hops occur between adiabatic surfaces calculated with time-dependent density functional theory. This theoretical description of the C{sub 60} impact on the Si surface is in good agreement with our experimental findings.

  9. Investigation of room temperature ferromagnetic nanoparticles of Gd5Si4

    SciTech Connect (OSTI)

    Hadimani, R. L.; Gupta, S.; Harstad, S. M.; Pecharsky, V. K.; Jiles, D. C.

    2015-07-06

    Gd5(SixGe1-x)4 compounds undergo first-order phase transitions close to room temperature when x ~ = 0.5, which are accompanied by extreme changes of properties. We report the fabrication of the nanoparticles of one of the parent compounds-Gd5Si4-using high-energy ball milling. Crystal structure, microstructure, and magnetic properties have been investigated. Particles agglomerate at long milling times, and the particles that are milled >20 min lose crystallinity and no longer undergo magnetic phase transition close to 340 K, which is present in a bulk material. The samples milled for >20 min exhibit a slightly increased coercivity. As a result, magnetization at a high temperature of 275K decreases with the increase in the milling time.

  10. Low voltage tunneling magnetoresistance in CuCrO{sub 2}-based semiconductor heterojunctions at room temperature

    SciTech Connect (OSTI)

    Li, X. R.; Han, M. J.; Shan, C.; Hu, Z. G. Zhu, Z. Q.; Chu, J. H.; Wu, J. D.

    2014-12-14

    CuCrO{sub 2}-based heterojunction diodes with rectifying characteristics have been fabricated by combining p-type Mg-doped CuCrO{sub 2} and n-type Al-doped ZnO. It was found that the current for the heterojunction in low bias voltage region is dominated by the trap-assisted tunneling mechanism. Positive magnetoresistance (MR) effect for the heterojunction can be observed at room temperature due to the tunneling-induced antiparallel spin polarization near the heterostructure interface. The MR effect becomes enhanced with the magnetic field, and shows the maximum at a bias voltage around 0.5 V. The phenomena indicate that the CuCrO{sub 2}-based heterojunction is a promising candidate for low-power semiconductor spintronic devices.

  11. Consent-Based Siting Public Meeting in Sacramento (April 26, 2016) |

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

    Department of Energy Sacramento (April 26, 2016) Consent-Based Siting Public Meeting in Sacramento (April 26, 2016) Consent-Based Siting Public Meeting in Sacramento (April 26, 2016) The Department hosted a public meeting on consent-based siting on April 26th in Sacramento at the Holiday Inn Capitol Plaza. The purpose of the consent-based siting public meeting was to hear from the public and interested stakeholders on what matters to you as the Department of Energy moves forward in

  12. Meeting Materials: Consent-Based Siting Public Meeting in Sacramento (April

    Energy Savers [EERE]

    26, 2016) | Department of Energy in Sacramento (April 26, 2016) Meeting Materials: Consent-Based Siting Public Meeting in Sacramento (April 26, 2016) Meeting Materials: Consent-Based Siting Public Meeting in Sacramento (April 26, 2016) The Department will host a public meeting on consent-based siting on April 26th in Sacramento at the Holiday Inn Capitol Plaza. The purpose of the consent-based siting public meeting is to hear from the public and interested stakeholders on what matters to you

  13. Agenda CBS Public Meeting-Sacramento

    Energy Savers [EERE]

    David Ballard, Ph.D., Professor of Sociology CONSENT- BASED SITING CONSENT-BASED SITING PUBLIC MEETING Holiday Inn Capitol Plaza-Sacramento 300 J Street Sacramento, CA 95814 April 26, 2016 4:00-5:00 PM Informal Open House and Poster Session (Before Meeting Begins) 5:00-5:15 PM Welcoming Remarks Robert Weisenmiller, Chair to the California Energy Comission 5:15-5:30 PM Moving Forward with Consent-Based Siting John Kotek, Acting Assistant Secretary for Nuclear Energy, Department of Energy

  14. Agenda CBS Public Meeting-Sacramento

    Office of Environmental Management (EM)

    David Ballard, Ph.D., Professor of Sociology CONSENT- BASED SITING CONSENT-BASED SITING PUBLIC MEETING Holiday Inn Capitol Plaza-Sacramento 300 J Street Sacramento, CA 95814 April 26, 2016 4:00-5:00 PM Informal Open House and Poster Session (Before Meeting Begins) 5:00-5:15 PM Welcoming Remarks Robert Weisenmiller, Chair to the California Energy Commission 5:15-5:30 PM Moving Forward with Consent-Based Siting John Kotek, Acting Assistant Secretary for Nuclear Energy, Department of Energy

  15. Microsoft Word - Consolidated Verbatim Transcript CBS Meeting Sacramento California Transcripts_Final

    Office of Environmental Management (EM)

    Holiday Inn Capitol Plaza Sacramento 300 J Street Sacramento, CA 95814 April 26, 2016 VERBATIM TRANSCRIPT Mr. Jim Hamilton. Good afternoon. And for those in later time zones via webinar, good evening. Welcome, and thank you for being here today. My name is Jim Hamilton. I'm an advisor to the Department of Energy's Consent-Based Siting Team and my role here today is to help us all to have a good, open, productive conversation. To start off we have a few housekeeping issues I want to talk about

  16. Agenda112901 | U.S. DOE Office of Science (SC)

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

    29-30, 2001 Nuclear Science Advisory Committee (NSAC) NSAC Home Meetings NSAC Members Charges/Reports Charter .pdf file (78KB) NP Committees of Visitors Federal Advisory Committees NP Home Meetings November 29-30, 2001 Print Text Size: A A A FeedbackShare Page DOE/NSF Nuclear Science Advisory Committee Meeting November 29-30, 2001 Holiday Inn 550 C Street, SW Washington, D.C. Preliminary Agenda November 29, 2001 Session 1 8:30 a.m. Welcome James Symons 8:40 a.m. Report from DOE 9:05 a.m. Report

  17. Dynamical cancellation of pulse-induced transients in a metallic shielded room for ultra-low-field magnetic resonance imaging

    SciTech Connect (OSTI)

    Zevenhoven, Koos C. J. Ilmoniemi, Risto J.; Dong, Hui; Clarke, John

    2015-01-19

    Pulse-induced transients such as eddy currents can cause problems in measurement techniques where a signal is acquired after an applied preparatory pulse. In ultra-low-field magnetic resonance imaging, performed in magnetic fields typically of the order of 100 μT, the signal-to-noise ratio is enhanced in part by prepolarizing the proton spins with a pulse of much larger magnetic field and in part by detecting the signal with a Superconducting QUantum Interference Device (SQUID). The pulse turn-off, however, can induce large eddy currents in the shielded room, producing an inhomogeneous magnetic-field transient that both seriously distorts the spin dynamics and exceeds the range of the SQUID readout. It is essential to reduce this transient substantially before image acquisition. We introduce dynamical cancellation (DynaCan), a technique in which a precisely designed current waveform is applied to a separate coil during the later part and turn off of the polarizing pulse. This waveform, which bears no resemblance to the polarizing pulse, is designed to drive the eddy currents to zero at the precise moment that the polarizing field becomes zero. We present the theory used to optimize the waveform using a detailed computational model with corrections from measured magnetic-field transients. SQUID-based measurements with DynaCan demonstrate a cancellation of 99%. Dynamical cancellation has the great advantage that, for a given system, the cancellation accuracy can be optimized in software. This technique can be applied to both metal and high-permeability alloy shielded rooms, and even to transients other than eddy currents.

  18. Strong room-temperature ferromagnetism of high-quality lightly Mn-doped ZnO grown by molecular beam epitaxy

    SciTech Connect (OSTI)

    Zuo Zheng; Zhou Huimei; Olmedo, Mario J.; Kong Jieying; Liu Jianlin; Beyermann, Ward P.; Zheng Jianguo; Xin Yan

    2012-09-01

    Strong room-temperature ferromagnetism is demonstrated in single crystalline Mn-doped ZnO grown by molecular beam epitaxy. With a low Mn concentration of 2 Multiplication-Sign 10{sup 19} cm{sup -3}, Mn-doped ZnO films exhibited room-temperature ferromagnetism with a coercivity field larger than 200 Oe, a large saturation moment of 6 {mu}{sub B}/ion, and a large residue moment that is {approx}70% of the saturation magnetization. Isolated ions with long range carrier mediated spin-spin coupling may be responsible for the intrinsic ferromagnetism.

  19. Effects of high temperature surface oxides on room temperature aqueous corrosion and environmental embrittlement of iron aluminides

    SciTech Connect (OSTI)

    Buchanan, R.A.; Perrin, R.L.

    1996-09-01

    Studies were conducted to determine the effects of high-temperature surface oxides, produced during thermomechanical processing, heat treatment (750 {degrees}C in air, one hour) or simulated in-service-type oxidation (1000{degrees}C in air, 24 hours) on the room-temperature aqueous-corrosion and environmental-embrittlement characteristics of iron aluminides. Materials evaluated included the Fe{sub 3}Al-based iron aluminides, FA-84, FA-129, FAL and FAL-Mo, a FeAl-based iron aluminide, FA-385, and a disordered low-aluminum Fe-Al alloy, FAPY. Tests were performed in a mild acid-chloride solution to simulate aggressive atmospheric corrosion. Cyclic-anodic-polarization tests were employed to evaluate resistances to localized aqueous corrosion. The high-temperature oxide surfaces consistently produced detrimental results relative to mechanically or chemically cleaned surfaces. Specifically, the pitting corrosion resistances were much lower for the as-processed and 750{degrees} C surfaces, relative to the cleaned surfaces, for FA-84, FA-129, FAL-Mo, FA-385 and FAPY. Furthermore, the pitting corrosion resistances were much lower for the 1000{degrees}C surfaces, relative to cleaned surfaces, for FA-129, FAL and FAL-Mo.

  20. The analysis of leakage current in MIS Au/SiO{sub 2}/n-GaAs at room temperature

    SciTech Connect (OSTI)

    Altuntas, H.; Ozcelik, S.

    2013-10-15

    The aim of this study is to determine the reverse-bias leakage current conduction mechanisms in Au/SiO{sub 2}/n-GaAs metal-insulator-semiconductor type Schottky contacts. Reverse-bias current-voltage measurements (I-V) were performed at room temperature. The using of leakage current values in SiO{sub 2} at electric fields of 1.46-3.53 MV/cm, ln(J/E) vs. {radical}E graph showed good linearity. Rom this plot, dielectric constant of SiO{sub 2} was calculated as 3.7 and this value is perfect agreement with 3.9 which is value of SiO{sub 2} dielectric constant. This indicates, Poole-Frenkel type emission mechanism is dominant in this field region. On the other hand, electric fields between 0.06-0.73 and 0.79-1.45 MV/cm, dominant leakage current mechanisms were found as ohmic type conduction and space charge limited conduction, respectively.

  1. Room-temperature ionic liquid-amine solutions: tunable solvents for efficient and reversible capture of CO{sub 2}

    SciTech Connect (OSTI)

    Dean Camper; Jason E. Bara; Douglas L. Gin; Richard D. Noble

    2008-11-05

    Solutions of room-temperature ionic liquids (RTILs) and commercially available amines were found to be effective for the capture of CO{sub 2} as carbamate salts. RTIL solutions containing 50 mol % (16% v/v) monoethanolamine (MEA) are capable of rapid and reversible capture of 1 mol of CO{sub 2} per 2 moles MEA to give an insoluble MEA-carbamate precipitate that helps to drive the capture reaction (as opposed to aqueous amine systems). Diethanolamine (DEA) can also be used in the same manner for CO{sub 2} capture in RTILs containing a pendant hydroxyl group. The captured CO{sub 2} in the resulting RTIL-carbamate salt mixtures can be readily released by either heating and/or subjecting them to reduced pressure. Using this unprecedented and industrially attractive mixing approach, the desirable properties of RTILs (i.e., nonvolatility, enhancedCO{sub 2} solubility, lower heat capacities) can be combined with the performance of amines for CO{sub 2} capture without the use of specially designed, functionalized 'task-specific' ionic liquids. By mixing RTILs with commercial amines, reactive solvents with a wide range of amine loading levels can be tailored to capture CO{sub 2} in a variety of conditions and processes. These RTIL-amine solutions behave similarly to their water-based counterparts but may offer many advantages, including increased energy efficiency, compared to current aqueous amine technologies.

  2. Oxygen-vacancy-induced room-temperature magnetization in lamellar V{sub 2}O{sub 5} thin films

    SciTech Connect (OSTI)

    Cezar, A. B.; Graff, I. L. Varalda, J.; Schreiner, W. H.; Mosca, D. H.

    2014-10-28

    In this work, we study the local atomic and electronic structures as well as oxygen-vacancy-induced magnetic properties of electrodeposited V{sub 2}O{sub 5} films. Unlike stoichiometric V{sub 2}O{sub 5}, which is a diamagnetic lamellar semiconductor, our oxygen-defective V{sub 2}O{sub 5} films are ferromagnetic at room-temperature and their saturation magnetization decreases with air exposure time. X-ray absorption spectroscopy was used to monitor the aging effect on these films, revealing that freshly-made samples exhibit only local crystalline order, whereas the aged ones undoubtedly show an enhancement of crystallinity and coordination symmetry. The mean number of oxygen atoms around V tends to increase, indicating a decrease of oxygen vacancies with time. Concurrently with the decrease of oxygen vacancies, a loss of saturation magnetization is also observed. Hence, it can be concluded that the ferromagnetism of the V{sub 2}O{sub 5} films originates from a vacancy-induced mechanism, confirming the universality of this class of ferromagnetism.

  3. Excess Ni-doping induced enhanced room temperature magneto-functionality in Ni-Mn-Sn based shape memory alloy

    SciTech Connect (OSTI)

    Pramanick, S.; Giri, S.; Majumdar, S.; Chatterjee, S.

    2014-09-15

    Present work reports on the observation of large magnetoresistance (??30% at 80 kOe) and magnetocaloric effect (?12?Jkg{sup ?1}K{sup ?1} for 050 kOe) near room temperature (?290?K) on the Ni-excess ferromagnetic shape memory alloy Ni{sub 2.04}Mn{sub 1.4}Sn{sub 0.56}. The sample can be thought of being derived from the parent Ni{sub 2}Mn{sub 1.4}Sn{sub 0.6} alloy, where excess Ni was doped at the expense of Sn. Such Ni doping enhances the martensitic transition temperature and for the Ni{sub 2.04}Mn{sub 1.4}Sn{sub 0.56} it is found to be optimum (288?K). The doped alloy shows enhanced magneto-functional properties as well as reduced saturation magnetization as compared to the undoped counterpart at low temperature. A probable increment of antiferromagnetic correlation between Mn-atoms on Ni substitution can be accounted for the enhanced magneto-functional properties as well as reduction in saturation moment.

  4. Room temperature deformation mechanisms of alumina particles observed from in situ micro-compression and atomistic simulations.

    SciTech Connect (OSTI)

    Sarobol, Pylin; Chandross, Michael E.; Carroll, Jay D.; Mook, William M.; Bufford, Daniel Charles; Boyce, Brad L.; Hattar, Khalid Mikhiel; Kotula, Paul G.; Hall, Aaron Christopher

    2015-09-22

    Aerosol deposition (AD) is a solid-state deposition technology that has been developed to fabricate ceramic coatings nominally at room temperature. Sub-micron ceramic particles accelerated by pressurized gas impact, deform, and consolidate on substrates under vacuum. Ceramic particle consolidation in AD coatings is highly dependent on particle deformation and bonding; these behaviors are not well understood. In this work, atomistic simulations and in situ micro-compressions in the scanning electron microscope, and the transmission electron microscope (TEM) were utilized to investigate fundamental mechanisms responsible for plastic deformation/fracture of particles under applied compression. Results showed that highly defective micron-sized alumina particles, initially containing numerous dislocations or a grain boundary, exhibited no observable shape change before fracture/fragmentation. Simulations and experimental results indicated that particles containing a grain boundary only accommodate low strain energy per unit volume before crack nucleation and propagation. In contrast, nearly defect-free, sub-micron, single crystal alumina particles exhibited plastic deformation and fracture without fragmentation. Dislocation nucleation/motion, significant plastic deformation, and shape change were observed. Simulation and TEM in situ micro-compression results indicated that nearly defect-free particles accommodate high strain energy per unit volume associated with dislocation plasticity before fracture. As a result, the identified deformation mechanisms provide insight into feedstock design for AD.

  5. Microstructure chemistry and mechanical properties of Ni-based superalloy Rene N4 under irradiation at room temperature

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

    Sun, C.; Kirk, M.; Li, M.; Hattar, Khalid Mikhiel; Wang, Y.; Anderoglu, O.; Valdez, J.; Uberuaga, B. P.; Dickerson, R.; Maloy, S. A.

    2015-06-14

    Nickel superalloys with cubic L12 structured γ' (Ni3(Al, Ti)) precipitates exhibit high strength at high temperatures and excellent corrosion resistance when exposed to water. Unlike prior studies on irradiation damage of other Ni-based superalloys, our study on Rene N4 involves much larger γ' precipitates, ~450 nm in size, a size regime where the irradiation-induced disordering and dissolution kinetics and the corresponding mechanical property evolution are unknown. Under heavy ion irradiation at room temperature, the submicron-sized γ' precipitates were fully disordered at ~0.3 dpa and only later partially dissolved after 75 dpa irradiation. Nanoindentation experiments indicate that the mechanical properties ofmore » the alloy change significantly, with a dramatic decrease in hardness, with irradiation dose. Three contributions to the change in hardness were examined: defect clusters, disordering and dissolution. Moreover, the generation of defect clusters in the matrix and precipitates slightly increased the indentation hardness, while disordering of the submicron-sized γ' precipitates resulted in a dramatic decrease in the total hardness, which decreased further during the early stages of the intermixing between γ' precipitates and matrix (<18 dpa). As a result, controlling the long-range-ordering and chemical intermixing can be used to tailor the mechanical properties of Ni-based superalloys under irradiation.« less

  6. Interaction of Plutonium with Diverse Materials in Moist Air and Nitrogen-Argon Atmospheres at Room Temperature

    SciTech Connect (OSTI)

    John M. Haschke; Raymond J. Martinez; Robert E. Pruner II; Barbara Martinez; Thomas H. Allen

    2001-04-01

    Chemical and radiolytic interactions of weapons-grade plutonium with metallic, inorganic, and hydrogenous materials in atmospheres containing moist air-argon mixtures have been characterized at room temperature from pressure-volume-temperature and mass spectrometric measurements of the gas phase. A reaction sequence controlled by kinetics and gas-phase composition is defined by correlating observed and known reaction rates. In all cases, O{sub 2} is eliminated first by the water-catalyzed Pu + O{sub 2} reaction and H{sub 2}O is then consumed by the Pu + H{sub 2}O reaction, producing a gas mixture of N{sub 2}, argon, and H{sub 2}. Hydrogen formed by the reaction of water and concurrent radiolysis of hydrogenous materials either reacts to form PuH{sub 2} or accumulates in the system. Accumulation of H{sub 2} is correlated with the presence of hydrogenous materials in liquid and volatile forms that are readily distributed over the plutonium surface. Areal rates of radiolytic H{sub 2} generation are determined and applied in showing that modest extents of H{sub 2} production are expected for hydrogenous solids if the contact area with plutonium is limited. The unpredictable nature of complex chemical systems is demonstrated by occurrence of the chloride-catalyzed Pu + H{sub 2}O reaction in some tests and hydride-catalyzed nitriding in another.

  7. Room temperature deformation mechanisms of alumina particles observed from in situ micro-compression and atomistic simulations.

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

    Sarobol, Pylin; Chandross, Michael E.; Carroll, Jay D.; Mook, William M.; Bufford, Daniel Charles; Boyce, Brad L.; Hattar, Khalid Mikhiel; Kotula, Paul G.; Hall, Aaron Christopher

    2015-09-22

    Aerosol deposition (AD) is a solid-state deposition technology that has been developed to fabricate ceramic coatings nominally at room temperature. Sub-micron ceramic particles accelerated by pressurized gas impact, deform, and consolidate on substrates under vacuum. Ceramic particle consolidation in AD coatings is highly dependent on particle deformation and bonding; these behaviors are not well understood. In this work, atomistic simulations and in situ micro-compressions in the scanning electron microscope, and the transmission electron microscope (TEM) were utilized to investigate fundamental mechanisms responsible for plastic deformation/fracture of particles under applied compression. Results showed that highly defective micron-sized alumina particles, initially containingmore » numerous dislocations or a grain boundary, exhibited no observable shape change before fracture/fragmentation. Simulations and experimental results indicated that particles containing a grain boundary only accommodate low strain energy per unit volume before crack nucleation and propagation. In contrast, nearly defect-free, sub-micron, single crystal alumina particles exhibited plastic deformation and fracture without fragmentation. Dislocation nucleation/motion, significant plastic deformation, and shape change were observed. Simulation and TEM in situ micro-compression results indicated that nearly defect-free particles accommodate high strain energy per unit volume associated with dislocation plasticity before fracture. As a result, the identified deformation mechanisms provide insight into feedstock design for AD.« less

  8. Manipulation of Zeeman coherence in solids at room temperature: Ramsey interference in the coherent-population-trapping spectrum of ruby

    SciTech Connect (OSTI)

    Kolesov, Roman; Scully, Marlan O.; Kocharovskaya, Olga [Department of Physics, Texas A and M University, College Station, Texas 77843-4242 (United States)

    2006-11-15

    Coherent population trapping (CPT) in a three-level atomic medium pumped by two subsequent short optical pulses is considered under the condition of negligible population decay from the excited optical state. It is shown that the amount of atomic population transferred to the excited state by the combined action of the pulses strongly depends on the phase of the ground-state coherence excited by the first pulse at the arrival time of the second pulse. Oscillatory behavior of optical excitation efficiency on the time delay between the pulses is predicted. It is also shown that saturating optical pulses can produce population inversion in a resonantly pumped quasi-two-level system. A class of solid materials in which the predicted phenomena can be observed at room temperature is found. It includes some rare-earth and transition-metal doped dielectric crystals where Orbach relaxation between ground-state Zeeman states is suppressed: ruby, alexandrite, and several others. On the basis of the theoretical predictions, experimental observation of Ramsey fringes in CPT spectrum of ruby is reported.

  9. Constructing hierarchical interfaces: TiO2-supported PtFe-FeOx nanowires for room temperature CO oxidation

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

    Zhu, Huiyuan; Wu, Zili; Dong, Su; Veith, Gabriel M.; Lu, Hanfeng; Zhang, Pengfei; Chai, Song -Hai; Dai, Sheng

    2015-08-05

    This is a report of a facile approach to constructing catalytic active hierarchical interfaces in one-dimensional (1D) nanostructure, exemplified by the synthesis of TiO2-supported PtFe–FeOx nanowires (NWs). The hierarchical interface, constituting atomic level interactions between PtFe and FeOx within each NW and the interactions between NWs and support (TiO2), enables CO oxidation with 100% conversion at room temperature. We identify the role of the two interfaces by probing the CO oxidation reaction with isotopic labeling experiments. Both the oxygen atoms (Os) in FeOx and TiO2 participate in the initial CO oxidation, facilitating the reaction through a redox pathway. Moreover, themore » intact 1D structure leads to the high stability of the catalyst. After 30 h in the reaction stream, the PtFe–FeOx/TiO2 catalyst exhibits no activity decay. These results provide a general approach and new insights into the construction of hierarchical interfaces for advanced catalysis.« less

  10. Microstructure chemistry and mechanical properties of Ni-based superalloy Rene N4 under irradiation at room temperature

    SciTech Connect (OSTI)

    Sun, C.; Kirk, M.; Li, M.; Hattar, Khalid Mikhiel; Wang, Y.; Anderoglu, O.; Valdez, J.; Uberuaga, B. P.; Dickerson, R.; Maloy, S. A.

    2015-06-14

    Nickel superalloys with cubic L12 structured γ' (Ni3(Al, Ti)) precipitates exhibit high strength at high temperatures and excellent corrosion resistance when exposed to water. Unlike prior studies on irradiation damage of other Ni-based superalloys, our study on Rene N4 involves much larger γ' precipitates, ~450 nm in size, a size regime where the irradiation-induced disordering and dissolution kinetics and the corresponding mechanical property evolution are unknown. Under heavy ion irradiation at room temperature, the submicron-sized γ' precipitates were fully disordered at ~0.3 dpa and only later partially dissolved after 75 dpa irradiation. Nanoindentation experiments indicate that the mechanical properties of the alloy change significantly, with a dramatic decrease in hardness, with irradiation dose. Three contributions to the change in hardness were examined: defect clusters, disordering and dissolution. Moreover, the generation of defect clusters in the matrix and precipitates slightly increased the indentation hardness, while disordering of the submicron-sized γ' precipitates resulted in a dramatic decrease in the total hardness, which decreased further during the early stages of the intermixing between γ' precipitates and matrix (<18 dpa). As a result, controlling the long-range-ordering and chemical intermixing can be used to tailor the mechanical properties of Ni-based superalloys under irradiation.

  11. One-step room temperature synthesis of very small ?-Fe{sub 2}O{sub 3} nanoparticles

    SciTech Connect (OSTI)

    Moscoso-Londoo, O.; Carrio, M.S.; Cosio-Castaeda, C.; Bilovol, V.; Snchez, R. Martnez; Lede, E.J.; Socolovsky, L.M.; Martnez-Garca, R.

    2013-09-01

    Graphical abstract: - Highlights: One-step synthesis of 3 nm maghemite nanoparticles is reported. Maghemite nanoparticles can be synthesized from a ferric solution. ?-Fe{sub 2}O{sub 3} NPs can be obtained if the precursor has Fe(III) in tetrahedral interstices. HR-TEM, Mssbauer, XAFS and magnetometry analysis proved the maghemite existence - Abstract: Very small maghemite nanoparticles (?3 nm) are obtained through a one-step synthesis at room temperature. The fast neutralization reaction of a ferric solution in a basic medium produces an intermediate phase, presumably two-line ferrihydrite, which in oxidizing conditions is transformed to maghemite nanoparticles. The synthesis of maghemite, as final product of the reaction, was characterized by High-Resolution Transmission Electron Microscopy (HR-TEM), X-ray Absorption Fine Structure (XAFS), Mssbauer spectroscopy, and magnetometry. The XAFS technique allowed the analysis of the crystallographic variations into maghemite nanoparticles as a result of modification in its surface/volume ratio. Mssbauer spectroscopy at low temperature (4.2 K) confirms the presence of Fe(III) in tetrahedral and octahedral interstices, in the stoichiometry corresponding to maghemite. The specific magnetization, M vs H (3 K and 300 K, up to 7 T) and temperature dependence of the magnetization (50 Oe by ZFC mode, 2 K ? T ? 300 K) indicate that maghemite nanoparticles of 3 nm are in superparamagnetic state with a blocking temperature close to 36 K.

  12. Press Room Archive | JCESR

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

    News features on JCESR from 2012-2014 Oncor's Plan to Backup Texas Power Gives Jolt to Energy Storage Industry The Dallas Morning News December 29, 2014 The power line company, ...

  13. Room Air Conditioners

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE) develops standardized data templates for reporting the results of tests conducted in accordance with current DOE test procedures. Templates may be used by third-party laboratories under contract with DOE that conduct testing in support of ENERGY STAR® verification, DOE rulemakings, and enforcement of the federal energy conservation standards.

  14. Public Reading Room

    Office of Legacy Management (LM)

    items consisting of technical documents, news clippings, videotapes, journal articles, annual reports, and environmental restoration and decontamination and...

  15. Press Room | JCESR

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

    of North Carolina at Chapel Hill have developed a novel electrolyte for use in solid-state lithium batteries that overcomes many of the problems that plague other solid...

  16. Fermilab | Press Room | Images

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

    When using this material please credit Fermilab. Return to Press Release Med Res | Hi Res Scientists from the CDF and DZero collaborations at DOE's Fermilab have combined...

  17. Fermilab | Press Room | Images

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

    When using these images, please credit Fermilab. Return to Press Release Med Res | Hi Res According to the Standard Model of particles and forces, the Higgs mechanism gives...

  18. Fermilab | Press Room | Images

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

    using these images, please credit them as specified. Return to Press Release Med Res | Hi Res The Standard Model describes the interactions of the fundamental particle of the...

  19. Room temperature atomic layerlike deposition of ZnS on organic thin films: Role of substrate functional groups and precursors

    SciTech Connect (OSTI)

    Shi, Zhiwei; Walker, Amy V.

    2015-09-15

    The room temperature atomic layerlike deposition (ALLD) of ZnS on functionalized self-assembled monolayers (SAMs) was investigated, using diethyl zinc (DEZ) and in situ generated H{sub 2}S as reactants. Depositions on SAMs with three different terminal groups, –CH{sub 3,} –OH, and –COOH, were studied. It was found that the reaction of DEZ with the SAM terminal group is critical in determining the film growth rate. Little or no deposition is observed on –CH{sub 3} terminated SAMs because DEZ does not react with the methyl terminal group. ZnS does deposit on both –OH and –COOH terminated SAMs, but the grow rate on –COOH terminated SAMs is ∼10% lower per cycle than on –OH terminated SAMs. DEZ reacts with the hydroxyl group on –OH terminated SAMs, while on –COOH terminated SAMs it reacts with both the hydroxyl and carbonyl bonds of the terminal groups. The carbonyl reaction is found to lead to the formation of ketones rather than deposition of ZnS, lowering the growth rate on –COOH terminated SAMs. SIMS spectra show that both –OH and –COOH terminated SAMs are covered by the deposited ZnS layer after five ALLD cycles. In contrast to ZnO ALLD where the composition of the film differs for the first few layers on –COOH and –OH terminated SAMs, the deposited film composition is the same for both –COOH and –OH terminated SAMs. The deposited film is found to be Zn-rich, suggesting that the reaction of H{sub 2}S with the Zn-surface adduct may be incomplete.

  20. SU-E-T-495: Neutron Induced Electronics Failure Rate Analysis for a Single Room Proton Accelerator

    SciTech Connect (OSTI)

    Knutson, N; DeWees, T; Klein, E

    2014-06-01

    Purpose: To determine the failure rate as a function of neutron dose of the range modulator's servo motor controller system (SMCS) while shielded with Borated Polyethylene (BPE) and unshielded in a single room proton accelerator. Methods: Two experimental setups were constructed using two servo motor controllers and two motors. Each SMCS was then placed 30 cm from the end of the plugged proton accelerator applicator. The motor was then turned on and observed from outside of the vault while being irradiated to known neutron doses determined from bubble detector measurements. Anytime the motor deviated from the programmed motion a failure was recorded along with the delivered dose. The experiment was repeated using 9 cm of BPE shielding surrounding the SMCS. Results: Ten SMCS failures were recorded in each experiment. The dose per monitor unit for the unshielded SMCS was 0.0211 mSv/MU and 0.0144 mSv/MU for the shielded SMCS. The mean dose to produce a failure for the unshielded SMCS was 63.5 58.3 mSv versus 17.0 12.2 mSv for the shielded. The mean number of MUs between failures were 2297 1891 MU for the unshielded SMCS and 2122 1523 MU for the shielded. A Wilcoxon Signed Ranked test showed the dose between failures were significantly different (P value = 0.044) while the number of MUs between failures were not (P value = 1.000). Statistical analysis determined a SMCS neutron dose of 5.3 mSv produces a 5% chance of failure. Depending on the workload and location of the SMCS, this failure rate could impede clinical workflow. Conclusion: BPE shielding was shown to not reduce the average failure of the SMCS and relocation of the system outside of the accelerator vault was required to lower the failure rate enough to avoid impeding clinical work flow.

  1. Lois Curfman McInnes, 2011 | U.S. DOE Office of Science (SC)

    Office of Science (SC) Website

    and transformative numerical software package PETSc, which provides robust, efficient, scalable, and extensible tools that are the backbone of numerous high-performance ...

  2. Materials Data on Er3InN (SG:221) by Materials Project

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Kristin Persson

    2014-11-02

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  3. Materials Data on Ho3InN (SG:221) by Materials Project

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Kristin Persson

    2014-11-02

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  4. Materials Data on Sc3InN (SG:221) by Materials Project

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Kristin Persson

    2014-11-02

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  5. Materials Data on Dy3InN (SG:221) by Materials Project

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Kristin Persson

    2014-11-02

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  6. Materials Data on InN (SG:186) by Materials Project

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Kristin Persson

    2014-11-02

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  7. Materials Data on InN (SG:186) by Materials Project

    DOE Data Explorer [Office of Scientific and Technical Information (OSTI)]

    Kristin Persson

    Computed materials data using density functional theory calculations. These calculations determine the electronic structure of bulk materials by solving approximations to the Schrodinger equation. For more information, see https://materialsproject.org/docs/calculations

  8. Optical diode effect at spin-wave excitations in the room-temperature multiferroic BiFeO3.

    SciTech Connect (OSTI)

    Kezsmarki, I.; Nagel, U.; Bordacs, S.; Fishman, Randy Scott; Lee, Jun Hee; Yi, Hee Taek; Cheong, Sang-Wook; Room, T.

    2015-09-15

    The ability to read and write a magnetic state current-free by an electric voltage would provide a huge technological advantage. Dynamic or optical ME effects are equally interesting, because they give rise to unidirectional light propagation as recently observed in low-temperature multiferroics. This phenomenon, if realized at room temperature, would allow the development of optical diodes which transmit unpolarized light in one, but not in the opposite, direction. Here, we report strong unidirectional transmission in the room-temperature multiferroic BiFeO3 over the gigahertz-terahertz frequency range. The supporting theory attributes the observed unidirectional transmission to the spin-current-driven dynamic ME effect. Our findings are an important step toward the realization of optical diodes, supplemented by the ability to switch the transmission direction with a magnetic or electric field.

  9. Room temperature photoluminescence from In{sub x}Al{sub (1?x)}N films deposited by plasma-assisted molecular beam epitaxy

    SciTech Connect (OSTI)

    Kong, W. Jiao, W. Y.; Kim, T. H.; Brown, A. S.; Mohanta, A.; Roberts, A. T.; Fournelle, J.; Losurdo, M.; Everitt, H. O.

    2014-09-29

    InAlN films deposited by plasma-assisted molecular beam epitaxy exhibited a lateral composition modulation characterized by 1012?nm diameter, honeycomb-shaped, columnar domains with Al-rich cores and In-rich boundaries. To ascertain the effect of this microstructure on its optical properties, room temperature absorption and photoluminescence characteristics of In{sub x}Al{sub (1?x)}N were comparatively investigated for indium compositions ranging from x?=?0.092 to 0.235, including x?=?0.166 lattice matched to GaN. The Stokes shift of the emission was significantly greater than reported for films grown by metalorganic chemical vapor deposition, possibly due to the phase separation in these nanocolumnar domains. The room temperature photoluminescence also provided evidence of carrier transfer from the InAlN film to the GaN template.

  10. Enlarged Mn 3s splitting and room-temperature ferromagnetism in epitaxially grown oxygen doped Mn{sub 2}N{sub 0.86} films

    SciTech Connect (OSTI)

    Meng, M.; Wu, S. X. Ren, L. Z.; Zhou, W. Q.; Wang, Y. J.; Wang, G. L.; Li, S. W.

    2014-11-07

    Single-phase and oxygen doped Mn{sub 2}N{sub 0.86} thin films have been grown on MgO (111) by plasma-assisted molecular beam epitaxy. The films grow under tensile strain and, remarkably, they show ferromagnetic-like interactions at low temperature and ferromagnetic ordering agreed well with the Bloch-law T{sup 3/2} at room-temperature. We further demonstrate the enlarged Mn 3s splitting (6.46 eV) and its possible relation to the observed ferromagnetism. Our study not only provide a strategy for further theoretical work on oxygen doped manganese nitrides, but also shed promising light on utilizing its room-temperature FM property to fabricate spintronic devices.

  11. Grain size and texture effect on compression behavior of hot-extruded Mg-3Al-1Zn alloys at room temperature

    SciTech Connect (OSTI)

    Chang, L.L. [Department of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China); Wang, Y.N., E-mail: wynmm@dlut.edu.cn [Department of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China); Zhao, X. [Key laboratory for Anisotropy and Texture of Materials, Ministry of Education, Northeastern University, Shenyang 110005 (China); Qi, M. [Department of Materials Science and Engineering, Dalian University of Technology, Dalian 116024 (China)

    2009-09-15

    Hot-extruded AZ31 alloy was subjected to compression at room temperature. The influence of grain size and grain orientation on the compression behavior of the specimens was examined by optical microscopy, compression test and X-ray diffraction. Abundant twins activated during compression of extruded AZ31 magnesium alloy. The hot extruded AZ31 magnesium alloys had a higher Hall-Petch slope for compression than that for tension.

  12. An Investigation of Enhanced Formability in AA5182-O Al During High-Rate Fre-Forming at Room-Temperature: Quantification of Deformation History

    SciTech Connect (OSTI)

    Rohatgi, Aashish; Soulami, Ayoub; Stephens, Elizabeth V.; Davies, Richard W.; Smith, Mark T.

    2014-03-01

    Following the two prior publication of PNNL Pulse-Pressure research in the Journal of Materials Processing Technology, this manuscript continues to describe PNNLs advances in getting a better understanding of sheet metal formability under high strain-rate conditions. Specifically, using a combination of numerical modeling and novel experiments, we quantitatively demonstrate the deformation history associated with enhanced formability (~2.5X) in Al under room temperature forming.

  13. Electro-caloric effect in lead-free Sn doped BaTiO{sub 3} ceramics at room temperature and low applied fields

    SciTech Connect (OSTI)

    Upadhyay, Sanjay Kumar; Reddy, V. Raghavendra E-mail: vrreddy@csr.res.in; Bag, Pallab; Rawat, R.; Gupta, S. M.; Gupta, Ajay

    2014-09-15

    Structural, dielectric, ferroelectric (FE), {sup 119}Sn Mössbauer, and specific heat measurements of polycrystalline BaTi{sub 1–x}Sn{sub x}O{sub 3} (x = 0% to 15%) ceramics are reported. Phase purity and homogeneous phase formation with Sn doping is confirmed from x-ray diffraction and {sup 119}Sn Mössbauer measurements. With Sn doping, the microstructure is found to change significantly. Better ferroelectric properties at room temperature, i.e., increased remnant polarization (38% more) and very low field switchability (225% less) are observed for x = 5% sample as compared to other samples and the results are explained in terms of grain size effects. With Sn doping, merging of all the phase transitions into a single one is observed for x ≥ 10% and for x = 5%, the tetragonal to orthorhombic transition temperature is found close to room temperature. As a consequence better electro-caloric effects are observed for x = 5% sample and therefore is expected to satisfy the requirements for non-toxic, low energy (field) and room temperature based applications.

  14. Sales Tax Exemption for Energy-Efficient Products (Sales Tax Holiday)

    Broader source: Energy.gov [DOE]

    Virginia allows a four-day sales tax* exemption for dishwashers, clothes washers, air conditioners, ceiling fans, light bulb, dehumidifiers, programmable thermostat and refrigerators that meet fe...

  15. What Do You Think of Your LED Holiday Lights? | Department of Energy

    Energy Savers [EERE]

    Energy Fuel Cell Vehicle Pilot Programs? What Do You Think of Fuel Cell Vehicle Pilot Programs? February 18, 2010 - 5:30am Addthis Yesterday, you read about Todd's experience with a fuel cell vehicle pilot program. What do you think of fuel cell vehicle pilot programs? Would you participate? Each Thursday, you have the chance to share your thoughts on a question about energy efficiency or renewable energy for consumers. E-mail your responses to the Energy Saver team at

  16. EECBG Success Story: North Pole's Holiday Wish for an Energy Efficient 2012

    Broader source: Energy.gov [DOE]

    Up in the iconic community of North Pole, Alaska, the city leaders have made their energy efficiency upgrade wish list, and now state auditors are “checking it twice” to see which projects the city will be able to complete in 2012 using funds from the state’s Energy Efficiency and Conservation Block Grant (EECBG) as part of the American Recovery and Reinvestment Act. This can be critical in a city that sees winter temperatures as cold as -67F. Learn more.

  17. Sales Tax Exemption for Energy-Efficient Products (Sales Tax Holiday)

    Broader source: Energy.gov [DOE]

    In the past few years, the Georgia legislature has traditionally allowed an annual state and local sales tax exemption on Energy Star products of $1,500 or less per product, purchased for non...

  18. Whimsical SRS Relay Race Brings Joy to those in Need this Holiday...

    National Nuclear Security Administration (NNSA)

    race, which has raised 25,000 for the Savannah River Site's Toys for Tots campaign. Dozens of contractor employees at the Savannah River Site (SRS) recently combined zany fun ...

  19. How Do You Save Money on Summer Holidays? | Department of Energy

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

    the 4th of July. She mentioned several ways you can save energy by doing the things you probably did anyway -- like leaving the house or barbequing. But now that the 4th...

  20. They're Here! Winter, Holidays, and the New Year. How Will You...

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

    This entry from last year will help you make SMART energy-saving resolutions that last longer than the average new-year gym membership, so check it out and tell us in the comments ...

  1. Food and gift drives help make holidays brighter for regional families

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

    Food and Beverage (2010 MECS) Food and Beverage (2010 MECS) Manufacturing Energy and Carbon Footprint for Food and Beverage Sector (NAICS 311, 312) Energy use data source: 2010 EIA MECS (with adjustments) Footprint Last Revised: February 2014 View footprints for other sectors here. Manufacturing Energy and Carbon Footprint PDF icon Food and Beverage More Documents & Publications MECS 2006 - Food and Beverage All Manufacturing (2010 MECS) Cement

    STEM skills Community Connections: Your link

  2. Supplemental Radiological Survey Plan for the Lease of the Rooms Associated with C107 of Building K-1006 at the East Tennessee Technology Park, Oak Ridge, Tennessee

    SciTech Connect (OSTI)

    Blevins M.F.

    2010-09-01

    In 1998, a portion of Bldg. K-1006 was leased to the Community Reuse Organization of East Tennessee (CROET) as part of the reindustrialization efforts at the East Tennessee Technology Park (ETTP). The facility was subleased and is being used as an analytical laboratory. The 1998 lease did not include rooms C107, C107-A, C107-B, C107-C, and C107-D. The lease of these rooms is now desired. These rooms comprise the area to be surveyed. The building was constructed as a laboratory facility to support the gaseous diffusion uranium enrichment process. It also contains offices and administrative spaces for laboratory personnel. After the gaseous diffusion process was shut down in the mid-1980s, the building was used to provide research and development support to ETTP environmental, safety, and health programs; the Toxic Substances Control Act Incinerator; the Central Neutralization Facility; and other multi-site waste treatment activities. It also served as the chemistry laboratory for the Environmental Technology Technical Services Organization. The activities currently conducted in Bldg. K-1006 utilize a variety of analytical techniques. Some of the major techniques being employed are X-ray analysis, electron microanalysis, and spectrochemical analysis. In 1998, a portion of Bldg. K-1006 was leased to CROET as part of the reindustrialization efforts at ETTP. The facility was subleased and is being used as an analytical laboratory. The 1998 lease did not include Rooms C107, C107-A, C107-B, C107-C, and C107-D. Some demolition of furniture and decontamination activities has taken place for Rooms C 107 and C 107-B since the last radiological survey of those rooms. In March 2009, a final remedial action (RA) was performed for the Bldg. K-1006 north basement sump. The Bldg. K-1006 north basement sump is a nominal 30-in.-diameter, 36-in.-deep concrete structure in the north corner of room C107B. The building receives groundwater in-leakage that is periodically pumped to the sewer system via this float-controlled pump. Solids in the bottom of the sump consisted of an estimated 1-ft{sup 3} coarse-grained material that varied in thickness from 0 to 4 in. with no suspended fraction. The RA consisted of removing the water in the sump and then removing and sampling the solids. The solids were mixed with grout after removal and allowed to set. The solids were then disposed off-site at an approved disposal facility. The building sump will remain until the K-1006 building is demolished. The actions for the K- 1006 sump are described in the revised Phased Construction Completion Report for Exposure Unit (EU) Z2-33, which received regulatory approval in December 2009.

  3. Orthorhombic-tetragonal phase coexistence and enhanced piezo-response at room temperature in Zr, Sn, and Hf modified BaTiO{sub 3}

    SciTech Connect (OSTI)

    Kalyani, Ajay Kumar; Brajesh, Kumar; Ranjan, Rajeev; Senyshyn, Anatoliy

    2014-06-23

    The effect of Zr, Hf, and Sn in BaTiO{sub 3} has been investigated at close composition intervals in the dilute concentration limit. Detailed structural analysis by x-ray and neutron powder diffraction revealed that merely 2 mol. % of Zr, Sn, and Hf stabilizes a coexistence of orthorhombic (Amm2) and tetragonal (P4mm) phases at room temperature. As a consequence, all the three systems show substantial enhancement in the longitudinal piezoelectric coefficient (d{sub 33}), with Sn modification exhibiting the highest value ∼425 pC/N.

  4. Room-temperature ferromagnetism in Cr-doped Si achieved by controlling atomic structure, Cr concentration, and carrier densities: A first-principles study

    SciTech Connect (OSTI)

    Wei, Xin-Yuan; Yang, Zhong-Qin; Zhu, Yan; Li, Yun

    2015-04-28

    By using first-principles calculations, we investigated how to achieve a strong ferromagnetism in Cr-doped Si by controlling the atomic structure and Cr concentration as well as carrier densities. We found that the configuration in which the Cr atom occupies the tetrahedral interstitial site can exist stably and the Cr atom has a large magnetic moment. Using this doping configuration, room-temperature ferromagnetism can be achieved in both n-type and p-type Si by tuning Cr concentration and carrier densities. The results indicate that the carrier density plays a crucial role in realizing strong ferromagnetism in diluted magnetic semiconductors.

  5. Density dependence of the room temperature thermal conductivity of atomic layer deposition-grown amorphous alumina (Al{sub 2}O{sub 3})

    SciTech Connect (OSTI)

    Gorham, Caroline S.; Gaskins, John T.; Hopkins, Patrick E.; Parsons, Gregory N.; Losego, Mark D.

    2014-06-23

    We report on the thermal conductivity of atomic layer deposition-grown amorphous alumina thin films as a function of atomic density. Using time domain thermoreflectance, we measure the thermal conductivity of the thin alumina films at room temperature. The thermal conductivities vary ?35% for a nearly 15% change in atomic density and are substrate independent. No density dependence of the longitudinal sound speeds is observed with picosecond acoustics. The density dependence of the thermal conductivity agrees well with a minimum limit to thermal conductivity model that is modified with a differential effective-medium approximation.

  6. Multiple current peaks in room-temperature atmospheric pressure homogenous dielectric barrier discharge plasma excited by high-voltage tunable nanosecond pulse in air

    SciTech Connect (OSTI)

    Yang, De-Zheng; Wang, Wen-Chun; Zhang, Shuai; Tang, Kai; Liu, Zhi-jie; Wang, Sen

    2013-05-13

    Room temperature homogenous dielectric barrier discharge plasma with high instantaneous energy efficiency is acquired by using nanosecond pulse voltage with 20-200 ns tunable pulse width. Increasing the voltage pulse width can lead to the generation of regular and stable multiple current peaks in each discharge sequence. When the voltage pulse width is 200 ns, more than 5 organized current peaks can be observed under 26 kV peak voltage. Investigation also shows that the organized multiple current peaks only appear in homogenous discharge mode. When the discharge is filament mode, organized multiple current peaks are replaced by chaotic filament current peaks.

  7. Spin-Induced Polarizations and Nonreciprocal Directional Dichroism of the Room-Temperature Multiferroic BiFeO3

    SciTech Connect (OSTI)

    Fishman, Randy Scott; Lee, Jun Hee; Bordacs, Sandor; Kezsmarki, Istvan; Nagel, Urmas; Room, Toomas

    2015-09-14

    A microscopic model for the room-temperature multiferroic BiFeO3 that includes two Dzyaloshinskii-Moriya interactions and single-ion anisotropy along the ferroelectric polarization predicts both the zero-field spectroscopic modes as well as their splitting and evolution in a magnetic field. Due to simultaneously broken time-reversal and spatial-inversion symmetries, the absorption of light changes as the magnetic field or the direction of light propagation is reversed. We discuss three physical mechanisms that may contribute to this absorption asymmetry known as directional dichroism: the spin current, magnetostriction, and single-ion anisotropy. We conclude that the directional dichroism in BiFeO3 is dominated by the spin-current polarization and is insensitive to the magnetostriction and easy-axis anisotropy. With three independent spin-current parameters, our model accurately describes the directional dichroism observed for magnetic field along [1, -1, 0]. Since some modes are almost transparent to light traveling in one direction but opaque for light traveling in the opposite direction, BiFeO3 can be used as a room-temperature optical diode at certain frequencies in the GHz to THz range. This work demonstrates that an analysis of the directional dichroism spectra based on an effective spin model supplemented by first-principles calculations can produce a quantitative microscopic theory of the magnetoelectric couplings in multiferroic materials.

  8. Single phase synthesis and room temperature neutron diffraction studies on multiferroic PbFe{sub 0.5}Nb{sub 0.5}O{sub 3}

    SciTech Connect (OSTI)

    Matteppanavar, Shidaling; Angadi, Basavaraj; Rayaprol, Sudhindra

    2013-02-05

    The lead-iron-niobate, (PbFe{sub 0.5}Nb{sub 0.5}O{sub 3} or PFN) was synthesized by low temperature sintering Single Step / Solid State Reaction Method. The 700 Degree-Sign C/2 hrs. calcined powder was sintered at 1050 Degree-Sign C/1 hr. The sintered pellets were characterized through X-Ray Diffraction and Neutron Diffraction at room temperature. It is found from the XRD pattern that the materials is in single phase with no traces of pyrochlore phase. It was also confirmed from the neutron diffraction pattern, the structure of PFN to be monoclinic, space group Cm. Structural studies has been carried out by refining the obtained neutron diffraction data by Rietveld refinement method using Fullprof program. The neutron diffraction pattern at 300 K (room temperature) was selected to refine the structure. The lattice parameters obtained are; a = 5.6709 A, b = 5.6732 A, c = 4.0136 A, and {alpha}= 90, {beta}= 89.881, {gamma}= 90. The P-E measurements showed hysteretic behavior with high remnant polarization.

  9. Room temperature ferromagnetic and ferroelectric properties of Bi{sub 1−x}Ca{sub x}MnO{sub 3} thin films

    SciTech Connect (OSTI)

    Pugazhvadivu, K. S.; Tamilarasan, K.; Balakrishnan, L.; Mohan Rao, G.

    2014-11-15

    Bi{sub 1−x}Ca{sub x}MnO{sub 3} (BCMO) thin films with x = 0, 0.1, 0.2, 0.3 and 0.4 are successfully deposited on the n-type Si (100) substrate at two different temperatures of 400 °C and 800 °C using RF magnetron sputtering. The stoichiometry of the films and oxidation state of the elements have been described by X-ray photoelectron spectroscopy analysis. Dielectric measurement depicts the insulating property of BCMO films. Magnetic and ferroelectric studies confirm the significant enhancement in spin orientation as well as electric polarization at room temperature due to incorporation of Ca{sup 2+} ions into BiMnO{sub 3} films. The BCMO (x = 0.2) film grown at 400 °C shows better magnetization (M{sub sat}) and polarization (P{sub s})with the measured values of 869 emu / cc and 6.6 μ{sub C}/ cm{sup 2} respectively than the values of the other prepared films. Thus the realization of room temperature ferromagnetic and ferroelectric ordering in Ca{sup 2+} ions substituted BMO films makes potentially interesting for spintronic device applications.

  10. HUMAN MACHINE INTERFACE (HMI) EVALUATION OF ROOMS TA-50-1-60/60A AT THE RADIOACTIVE LIQUID WASTE TREATMENT FACILITY (RLWTF)

    SciTech Connect (OSTI)

    Gilmore, Walter E.; Stender, Kerith K.

    2012-08-29

    This effort addressed an evaluation of human machine interfaces (HMIs) in Room TA-50-1-60/60A of the Radioactive Liquid Waste Treatment Facility (RLWTF). The evaluation was performed in accordance with guidance outlined in DOE-STD-3009, DOE Standard Preparation Guide for U.S. Department of Energy Nonreactor Nuclear Facility Documented Safety Analyses, 2006 [DOE 2006]. Specifically, Chapter 13 of DOE 2006 highlights the 10 CFR 830, Nuclear Safety Management, 2012, [CFR 2012] and DOE G 421.1-2 [DOE 2001a] requirements as they relate to the human factors process and, in this case, the safety of the RLWTF. The RLWTF is a Hazard Category 3 facility and, consequently, does not have safety-class (SSCs). However, safety-significant SSCs are identified. The transuranic (TRU) wastewater tanks and associated piping are the only safety-significant SSCs in Rooms TA-50-1-60/60A [LANL 2010]. Hence, the human factors evaluation described herein is only applicable to this particular assemblage of tanks and piping.

  11. Books Are Fun book fair

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

    Books Are Fun book fair Books Are Fun book fair WHEN: Sep 21, 2015 9:00 AM - Sep 24, 2015 4:00 PM WHERE: Otowi Building cafeteria side rooms CONTACT: Debbi Wersonick 665-4400 CATEGORY: Community INTERNAL: Calendar Login Event Description Employees and the public can get an early start on their holiday shopping at the Books Are Fun book fair. Fifteen percent of the proceeds from the book fair benefit the Food Depot in Santa Fe, and the Laboratory's annual holiday food drive, which is scheduled to

  12. Facile fabrication of high-performance InGaZnO thin film transistor using hydrogen ion irradiation at room temperature

    SciTech Connect (OSTI)

    Ahn, Byung Du [School of Electrical and Electronic Engineering, 50, Yonsei University, Seoul 120-749 (Korea, Republic of); Park, Jin-Seong [Division of Materials Science and Engineering, Hanyang University, Seoul 133-791 (Korea, Republic of); Chung, K. B., E-mail: kbchung@dongguk.edu [Division of Physics and Semiconductor Science, Dongguk University, Seoul 100-715 (Korea, Republic of)

    2014-10-20

    Device performance of InGaZnO (IGZO) thin film transistors (TFTs) are investigated as a function of hydrogen ion irradiation dose at room temperature. Field effect mobility is enhanced, and subthreshold gate swing is improved with the increase of hydrogen ion irradiation dose, and there is no thermal annealing. The electrical device performance is correlated with the electronic structure of IGZO films, such as chemical bonding states, features of the conduction band, and band edge states below the conduction band. The decrease of oxygen deficient bonding and the changes in electronic structure of the conduction band leads to the improvement of device performance in IGZO TFT with an increase of the hydrogen ion irradiation dose.

  13. Room-temperature thermally induced relaxation effect in a two-dimensional cyano-bridged Cu-Mo bimetal assembly and thermodynamic analysis of the relaxation process

    SciTech Connect (OSTI)

    Umeta, Yoshikazu; Ozaki, Noriaki; Tokoro, Hiroko; Ohkoshi, Shin-ichi

    2013-04-15

    We observed a photo-switching effect in [Cu{sup II}(1,4,8,11-tetraazacyclodecane)]{sub 2}[Mo{sup IV}(CN){sub 8}]{center_dot}10H{sub 2}O by irradiation with 410-nm light around room temperature using infrared spectroscopy. This photo-switching is caused by the photo-induced charge transfer from Mo{sup IV} to Cu{sup II}. The photo-induced phase thermally relaxed to the initial phase with a half-life time of 2.7 Multiplication-Sign 10{sup 1}, 6.9 Multiplication-Sign 10{sup 1}, and 1.7 Multiplication-Sign 10{sup 2} s at 293, 283, and 273 K, respectively. The relaxation process was analyzed using Hauser's equation, k=k{sub 0}exp[-(E{sub a}+E{sub a}{sup *}{gamma}) /k{sub B}T], where k is the rate constant of relaxation, k{sub 0} is the frequency factor, E{sub a} is the activation energy, E{sub a}{sup *} is the additional activation energy due to the cooperativity, and {gamma} is the fraction of the photo-induced phase. k{sub 0}, E{sub a}, and E{sub a}{sup *} were evaluated as 1.28 Multiplication-Sign 10{sup 7}{+-} 2.6 s{sup -1}, 4002 {+-} 188 cm{sup -1}, and 546 {+-} 318 cm{sup -1}, respectively. The value of E{sub a} is much larger than that of the relaxation process for the typical light-induced spin crossover effect (E{sub a} Almost-Equal-To 1000 cm{sup -1}). Room-temperature photo-switching is an important issue in the field of optical functional materials. The present system is useful for the demonstration of high-temperature photo-switching material.

  14. Electronic Docket Room (e-Docket Room) | Department of Energy

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

    AuthorizationsOrders Granted by the Department -- NOTE: 1977 thru 2013 will take you to an external link. 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990...

  15. Characterization of room temperature recrystallization kinetics in electroplated copper thin films with concurrent x-ray diffraction and electrical resistivity measurements

    SciTech Connect (OSTI)

    Treger, Mikhail; Noyan, I. C.; Witt, Christian; Cabral, Cyril; Murray, Conal; Jordan-Sweet, Jean; Rosenberg, Robert; Eisenbraun, Eric

    2013-06-07

    Concurrent in-situ four-point probe resistivity and high resolution synchrotron x-ray diffraction measurements were used to characterize room temperature recrystallization in electroplated Cu thin films. The x-ray data were used to obtain the variation with time of the integrated intensities and the peak-breadth from the Cu 111 and 200 reflections of the transforming grains. The variation of the integrated intensity and resistivity data with time was analyzed using the Johnson-Mehl-Avrami-Kolmogorov (JMAK) model. For both 111-textured and non-textured electroplated Cu films, four-point probe resistivity measurements yielded shorter transformation times than the values obtained from the integrated intensities of the corresponding Cu 111 reflections. In addition, the JMAK exponents fitted to the resistivity data were significantly smaller. These discrepancies could be explained by considering the different material volumes from which resistivity and diffraction signals originated, and the physical processes which linked these signals to the changes in the evolving microstructure. Based on these issues, calibration of the resistivity analysis with direct structural characterization techniques is recommended.

  16. Constructing hierarchical interfaces: TiO2-supported PtFe-FeOx nanowires for room temperature CO oxidation

    SciTech Connect (OSTI)

    Zhu, Huiyuan; Wu, Zili; Dong, Su; Veith, Gabriel M.; Lu, Hanfeng; Zhang, Pengfei; Chai, Song -Hai; Dai, Sheng

    2015-08-05

    This is a report of a facile approach to constructing catalytic active hierarchical interfaces in one-dimensional (1D) nanostructure, exemplified by the synthesis of TiO2-supported PtFe–FeOx nanowires (NWs). The hierarchical interface, constituting atomic level interactions between PtFe and FeOx within each NW and the interactions between NWs and support (TiO2), enables CO oxidation with 100% conversion at room temperature. We identify the role of the two interfaces by probing the CO oxidation reaction with isotopic labeling experiments. Both the oxygen atoms (Os) in FeOx and TiO2 participate in the initial CO oxidation, facilitating the reaction through a redox pathway. Moreover, the intact 1D structure leads to the high stability of the catalyst. After 30 h in the reaction stream, the PtFe–FeOx/TiO2 catalyst exhibits no activity decay. These results provide a general approach and new insights into the construction of hierarchical interfaces for advanced catalysis.

  17. Resonant tunneling with high peak to valley current ratio in SiO{sub 2}/nc-Si/SiO{sub 2} multi-layers at room temperature

    SciTech Connect (OSTI)

    Chen, D. Y.; Sun, Y.; He, Y. J.; Xu, L.; Xu, J.

    2014-01-28

    We have investigated carrier transport in SiO{sub 2}/nc-Si/SiO{sub 2} multi-layers by room temperature current-voltage measurements. Resonant tunneling signatures accompanied by current peaks are observed. Carrier transport in the multi-layers were analyzed by plots of ln(I/V{sup 2}) as a function of 1/V and ln(I) as a function of V{sup 1/2}. Results suggest that besides films quality, nc-Si and barrier sub-layer thicknesses are important parameters that restrict carrier transport. When thicknesses are both small, direct tunneling dominates carrier transport, resonant tunneling occurs only at certain voltages and multi-resonant tunneling related current peaks can be observed but with peak to valley current ratio (PVCR) values smaller than 1.5. When barrier thickness is increased, trap-related and even high field related tunneling is excited, causing that multi-current peaks cannot be observed clearly, only one current peak with higher PVCR value of 7.7 can be observed. While if the thickness of nc-Si is large enough, quantum confinement is not so strong, a broad current peak with PVCR value as high as 60 can be measured, which may be due to small energy difference between the splitting energy levels in the quantum dots of nc-Si. Size distribution in a wide range may cause un-controllability of the peak voltages.

  18. Workshop on Program for Elimination of Requirements Marginal to Safety: Proceedings

    SciTech Connect (OSTI)

    Dey, M.; Arsenault, F.; Patterson, M.; Gaal, M.

    1993-09-01

    These are the proceedings of the Public Workshop on the US Nuclear Regulatory Commission`s Program for Elimination of Requirements Marginal to Safety. The workshop was held at the Holiday Inn, Bethesda, on April 27 and 28, 1993. The purpose of the workshop was to provide an opportunity for public and industry input to the program. The workshop addressed the institutionalization of the program to review regulations with the purpose of eliminating those that are marginal. The objective is to avoid the dilution of safety efforts. One session was devoted to discussion of the framework for a performance-based regulatory approach. In addition, panelists and attendees discussed scope, schedules and status of specific regulatory items: containment leakage testing requirements, fire protection requirements, requirements for environmental qualification of electrical equipment, requests for information under 10CFR50.54(f), requirements for combustible gas control systems, and quality assurance requirements.

  19. Triangle Universities Nuclear Laboratory : 2011

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

    Accommodations Blocks of rooms for reunion attendees have been reserved in Durham at two locations in close proximity to the Duke campus. The recommendated choices are listed in order. 1) Residence Inn by Marriott, Deadline October 16, 2015. 1108 West Main Street, Durham, NC 27701 This is a new Marriott which will open this fall close to downtown on the West Main Street near the Duke's East Campus. We suggest this hotel as the first choice for your accommodation. This location provides easy

  20. HERO contact: Deb Kasparek,

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

    Board Holland America's "Westerdam" in Seattle to explore Southeast Alaska in style! , For more information - HERO contact: Deb Kasparek, 376-8840, Debra_S_Kasparek@rl.gov To book your cabin contact: Jim Carey, Cruise Holidays, 628-9555, jcarey@cruiseholidays.com Price Includes*: * Stateroom * Meals * Entertainment * Room Service * Theatre Shows *Not included: Gratuities & taxes/fees/port expenses Space is limited so book early! Prices are per person (double occupancy) Interior

  1. Technical support document: Energy efficiency standards for consumer products: Room air conditioners, water heaters, direct heating equipment, mobile home furnaces, kitchen ranges and ovens, pool heaters, fluorescent lamp ballasts and television sets. Volume 1, Methodology

    SciTech Connect (OSTI)

    Not Available

    1993-11-01

    The Energy Policy and Conservation Act (P.L. 94-163), as amended, establishes energy conservation standards for 12 of the 13 types of consumer products specifically covered by the Act. The legislation requires the Department of Energy (DOE) to consider new or amended standards for these and other types of products at specified times. DOE is currently considering amending standards for seven types of products: water heaters, direct heating equipment, mobile home furnaces, pool heaters, room air conditioners, kitchen ranges and ovens (including microwave ovens), and fluorescent light ballasts and is considering establishing standards for television sets. This Technical Support Document presents the methodology, data, and results from the analysis of the energy and economic impacts of the proposed standards. This volume presents a general description of the analytic approach, including the structure of the major models.

  2. Room temperature magnetocaloric effect, critical behavior, and magnetoresistance in Na-deficient manganite La{sub 0.8}Na{sub 0.1}MnO{sub 3}

    SciTech Connect (OSTI)

    Khlifi, M. Dhahri, E.; Hlil, E. K.

    2014-05-21

    The La{sub 0.8}Na{sub 0.1}MnO{sub 3} oxide was prepared by the solid-state reaction and annealed in air. The X-ray diffraction data reveal that the sample is crystallized in a rhombohedral structure with R3{sup ¯}c space group. Magnetic study shows a second-order magnetic phase transition from ferromagnetic to paramagnetic state at the Curie temperature T{sub C} = 295 K. In addition, the magnetizations as a function of temperature and the magnetic field is used to evaluate the magnetic entropy change ΔS{sub M}. Then, we have deduced that the La{sub 0.8}Na{sub 0.1}MnO{sub 3} oxide has a large magnetocaloric effect at room temperature. Such effect is given by the maximum of the magnetic entropy change ΔS{sub Mmax} = 5.56, and by the Relative cooling power (RCP) factor which is equal to 235 under a magnetic field of 5 T. Moreover, the magnetic field dependence of the magnetic entropy change is used to determine the critical exponents β, γ, and δ which are found to be β = 0.495, γ = 1.083, and δ = 3.18. These values are consistent with the prediction of the mean field theory (β = 0.5, γ = 1, and δ = 3). Above all, the temperature dependence of electrical resistivity shows a metal–insulator transition at T{sub ρ}. The electrical resistivity decrease when we apply a magnetic field giving a magnetoresistance effect in the order of 60% at room temperature.

  3. One-step synthesis of lightly doped porous silicon nanowires in HF/AgNO{sub 3}/H{sub 2}O{sub 2} solution at room temperature

    SciTech Connect (OSTI)

    Bai, Fan; State Key Laboratory of Alternate Electrical Power System with Renewable Energy Sources, North China Electric Power University, Beijing 102206 ; Li, Meicheng; Su Zhou Institute, North China Electric Power University, Suzhou 215123 ; Song, Dandan; Yu, Hang; Jiang, Bing; Li, Yingfeng

    2012-12-15

    One-step synthesis of lightly doped porous silicon nanowire arrays was achieved by etching the silicon wafer in HF/AgNO{sub 3}/H{sub 2}O{sub 2} solution at room temperature. The lightly doped porous silicon nanowires (pNWs) have circular nanopores on the sidewall, which can emit strong green fluorescence. The surface morphologies of these nanowires could be controlled by simply adjusting the concentration of H{sub 2}O{sub 2}, which influences the distribution of silver nanoparticles (Ag NPs) along the nanowire axis. A mechanism based on Ag NPs-induced lateral etching of nanowires was proposed to explain the formation of pNWs. The controllable and widely applicable synthesis of pNWs will open their potential application to nanoscale photoluminescence devices. - Graphical abstract: The one-step synthesis of porous silicon nanowire arrays is achieved by chemical etching of the lightly doped p-type Si (100) wafer at room temperature. These nanowires exhibit strong green photoluminescence. SEM, TEM, HRTEM and photoluminescence images of pNWs. The scale bars of SEM, TEM HRTEM and photoluminescence are 10 {mu}m, 20 nm, 10 nm, and 1 {mu}m, respectively. Highlights: Black-Right-Pointing-Pointer Simple one-step synthesis of lightly doped porous silicon nanowire arrays is achieved at RT. Black-Right-Pointing-Pointer Etching process and mechanism are illustrated with etching model from a novel standpoint. Black-Right-Pointing-Pointer As-prepared porous silicon nanowire emits strong green fluorescence, proving unique property.

  4. Room Air Conditioners | Department of Energy

    Energy Savers [EERE]

    Regulations Policy and Regulations map-1019833_960_720.jpg

    Portsmouth/Paducah Project Office U.S. Army Battalion Tours Portsmouth Site U.S. Army Battalion Tours Portsmouth Site Portsmouth Site Director Dr. Vince Adams (left) presents U.S. Army Major Ryan Watson with a framed photo of the Portsmouth Decontamination and Decommissioning Project. The site recently welcomed 32 members of the U.S. Army 412th Civil Affairs Battalion (Airborne - Tactical) to the Portsmouth Gaseous Diffusion Plant

  5. Certification_of_DOE_Reading_Rooms.pdf

    Energy Savers [EERE]

    Carmine Difiglio About Us Carmine Difiglio - Deputy Director for Energy Security Carmine Difiglio Dr. Carmine Difiglio serves as Deputy Director for Energy Security, Office of Energy Policy and Systems Analysis (EPSA). In this capacity, Dr. Difiglio provides the Director of EPSA and the Secretary of Energy policy analysis, analytic support, and policy advice concerning U.S. energy security, including energy supply and demand, energy markets, long-term strategies to enhance U.S. energy security,

  6. Media Room | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure...

  7. Media Room | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Life Extension Program NNSA Blog Pantex operator supports women in STEM luncheon NNSA Blog Bay Area national labs team to tackle long-standing automotive hydrogen storage challenge...

  8. Room Air Conditioners | Department of Energy

    Office of Environmental Management (EM)

    frequently. Based on size alone, an air conditioner generally needs 20 Btu for each square foot of living space. Other important factors to consider when selecting an air...

  9. Reading Room | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Apply for Our Jobs Our Jobs Working at NNSA Blog Home About Us Our Operations Acquisition and Project Management Environmental Program Services Contract Environmental ...

  10. Room Air Conditioners | Open Energy Information

    Open Energy Info (EERE)

    Contact needs updating Image needs updating Reference needed Missing content Broken link Other Additional Comments Cancel Submit Category: Articles with outstanding TODO tasks...

  11. Room Temperature Ferrimagnetism and Ferroelectricity in Strained...

    Office of Scientific and Technical Information (OSTI)

    ... M. Nikolaenko, V. A. Khokhlov, Low Temp. Phys. 2012, 38, 413. 22 D. S. Rana, I. Kawayama, K. Takahashi, K. R. Mavani, H. Murakami, M. Tonouchi, T. Yanagida, H. Tanaka, T. Kawai, ...

  12. HUMAN FACTORS GUIDANCE FOR CONTROL ROOM EVALUATION

    SciTech Connect (OSTI)

    OHARA,J.; BROWN,W.; STUBLER,W.; HIGGINS,J.; WACHTEL,J.; PERSENSKY,J.J.

    2000-07-30

    The Human-System Interface Design Review Guideline (NUREG-0700, Revision 1) was developed by the US Nuclear Regulatory Commission (NRC) to provide human factors guidance as a basis for the review of advanced human-system interface technologies. The guidance consists of three components: design review procedures, human factors engineering guidelines, and a software application to provide design review support called the ``Design Review Guideline.'' Since it was published in June 1996, Rev. 1 to NUREG-0700 has been used successfully by NRC staff, contractors and nuclear industry organizations, as well as by interested organizations outside the nuclear industry. The NRC has committed to the periodic update and improvement of the guidance to ensure that it remains a state-of-the-art design evaluation tool in the face of emerging and rapidly changing technology. This paper addresses the current research to update of NUREG-0700 based on the substantial work that has taken place since the publication of Revision 1.

  13. Room Temperature Ferrimagnetism and Ferroelectricity in Strained...

    Office of Scientific and Technical Information (OSTI)

    and Ferroelectricity in Strained, Thin Films of BiFe0.5Mn0.5O3 Eun-Mi Choi,* Thomas Fix, Ahmed Kursumovic, ChristyJ. Kinane, Dario Arena, Suman-Lata Sahonta, Zhenxing Bi, ...

  14. Data Room - Facilities - Radiation Effects Facility / Cyclotron...

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

    types of cables permanently installed. These included: five ribbon cables, two DB9 serial cables, three DB25 serial cables, and two GPIB cables. Permanently installed cables....

  15. News Room | Princeton Plasma Physics Lab

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

    their rights and their interests in our vibrant community of research and learning. PPPL's press policies are designed to be responsive to journalists' requests for...

  16. Jefferson Lab Activities Group Invites Young and Not-So-Young...

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

    Holiday Events Holiday Party on Dec. 12 for Jefferson Lab Children and the Young at Heart The JAG Holiday Party is scheduled for Saturday, Dec. 12, 10 a.m.-1 p.m. in the CEBAF...

  17. Enhanced memory effect via quantum confinement in 16?nm InN nanoparticles embedded in ZnO charge trapping layer

    SciTech Connect (OSTI)

    El-Atab, Nazek; Nayfeh, Ammar; Cimen, Furkan; Alkis, Sabri; Orta, Blend; Alevli, Mustafa; Dietz, Nikolaus; Okyay, Ali K.

    2014-06-23

    In this work, the fabrication of charge trapping memory cells with laser-synthesized indium-nitride nanoparticles (InN-NPs) embedded in ZnO charge trapping layer is demonstrated. Atomic layer deposited Al{sub 2}O{sub 3} layers are used as tunnel and blocking oxides. The gate contacts are sputtered using a shadow mask which eliminates the need for any lithography steps. High frequency C-V{sub gate} measurements show that a memory effect is observed, due to the charging of the InN-NPs. With a low operating voltage of 4?V, the memory shows a noticeable threshold voltage (V{sub t}) shift of 2?V, which indicates that InN-NPs act as charge trapping centers. Without InN-NPs, the observed memory hysteresis is negligible. At higher programming voltages of 10?V, a memory window of 5?V is achieved and the V{sub t} shift direction indicates that electrons tunnel from channel to charge storage layer.

  18. Bio-Derived Liquids to Hydrogen Distributed Reforming Working Group (BILIWG) Kick-Off Meeting Proceedings Hilton Garden Inn-BWI,Baltimore, MD October 24, 2006

    Broader source: Energy.gov [DOE]

    Proceedings from the October 24, 2006 Bio-Derived Liquids to Hydrogen Distributed Reforming Working Group Kick-Off Meeting.

  19. Structural phase transition, narrow band gap, and room-temperature ferromagnetism in [KNbO{sub 3}]{sub 1?x}[BaNi{sub 1/2}Nb{sub 1/2}O{sub 3??}]{sub x} ferroelectrics

    SciTech Connect (OSTI)

    Zhou, Wenliang; Yang, Pingxiong Chu, Junhao; Deng, Hongmei

    2014-09-15

    Structural phase transition, narrow band gap (E{sub g}), and room-temperature ferromagnetism (RTFM) have been observed in the [KNbO{sub 3}]{sub 1?x}[BaNi{sub 1/2}Nb{sub 1/2}O{sub 3??}]{sub x} (KBNNO) ceramics. All the samples have single phase perovskite structure, but exhibit a gradual transition behaviour from the orthorhombic to a cubic structure with the increase of x. Raman spectroscopy analysis not only corroborates this doping-induced change in normal structure but also shows the local crystal symmetry for x ? 0.1 compositions to deviate from the idealized cubic perovskite structure. A possible mechanism for the observed specific changes in lattice structure is discussed. Moreover, it is noted that KBNNO with compositions x?=?0.10.3 have quite narrow E{sub g} of below 1.5?eV, much smaller than the 3.2?eV band gap of parent KNbO{sub 3} (KNO), which is due to the increasing Ni 3d electronic states within the gap of KNO. Furthermore, the KBNNO materials present RTFM near a tetragonal to cubic phase boundary. With increasing x from 0 to 0.3, the magnetism of the samples develops from diamagnetism to ferromagnetism and paramagnetism, originating from the ferromagneticantiferromagnetic competition. These results are helpful in the deeper understanding of phase transitions, band gap tunability, and magnetism variations in perovskite oxides and show the potential role, such materials can play, in perovskite solar cells and multiferroic applications.

  20. Weatherization and Intergovernmental Program Success Stories...

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

    can improve the holidays by reducing energy and maintenance costs, thanks to its new LED holiday lights. Learn more. December 16, 2011 Cows like these in Skagit County,...

  1. SU-E-J-39: Comparison of PTV Margins Determined by In-Room Stereoscopic Image Guidance and by On-Board Cone Beam Computed Tomography Technique for Brain Radiotherapy Patients

    SciTech Connect (OSTI)

    Ganesh, T; Paul, S; Munshi, A; Sarkar, B; Krishnankutty, S; Sathya, J; George, S; Jassal, K; Roy, S; Mohanti, B

    2014-06-01

    Purpose: Stereoscopic in room kV image guidance is a faster tool in daily monitoring of patient positioning. Our centre, for the first time in the world, has integrated such a solution from BrainLAB (ExacTrac) with Elekta's volumetric cone beam computed tomography (XVI). Using van Herk's formula, we compared the planning target volume (PTV) margins calculated by both these systems for patients treated with brain radiotherapy. Methods: For a total of 24 patients who received partial or whole brain radiotherapy, verification images were acquired for 524 treatment sessions by XVI and for 334 sessions by ExacTrac out of the total 547 sessions. Systematic and random errors were calculated in cranio-caudal, lateral and antero-posterior directions for both techniques. PTV margins were then determined using van Herk formula. Results: In the cranio-caudal direction, systematic error, random error and the calculated PTV margin were found to be 0.13 cm, 0.12 cm and 0.41 cm with XVI and 0.14 cm, 0.13 cm and 0.44 cm with ExacTrac. The corresponding values in lateral direction were 0.13 cm 0.1 cm and 0.4 cm with XVI and 0.13 cm, 0.12 cm and 0.42 cm with ExacTrac imaging. The same parameters for antero-posterior were for 0.1 cm, 0.11 cm and 0.34 cm with XVI and 0.13 cm, 0.16 cm and 0.43 cm with ExacTrac imaging. The margins estimated with the two imaging modalities were comparable within ± 1 mm limit. Conclusion: Verification of setup errors in the major axes by two independent imaging systems showed the results are comparable and within ± 1 mm. This implies that planar imaging based ExacTrac can yield equal accuracy in setup error determination as the time consuming volumetric imaging which is considered as the gold standard. Accordingly PTV margins estimated by this faster imaging technique can be confidently used in clinical setup.

  2. Existing Whole-House Solutions Case Study: Passive Room-to-Room Air Transfer, Fresno, California

    SciTech Connect (OSTI)

    D. Stecher and A. Poershke

    2014-02-01

    In this project, IBACOS, a U.S. Department of Energy Building America team, assessed a strategy for providing conditioned air to bedrooms when the bedroom doors are closed and measured potential thermal discomfort that occupants may experience when this strategy is used. Builders can use this information to discuss space conditioning options for low-load houses with their clients to determine acceptable comfort levels for occupants in these cost-optimized, energy-efficient houses.

  3. Passive Room-to-Room Air Transfer, Fresno, California (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2014-02-01

    Field testing was performed in a retrofit unoccupied test house in Fresno, California. Three air-based heating, ventilation, and air conditioning (HVAC) distribution systems - a typical airflow ducted system to the bedrooms, a low airflow ducted system to the bedrooms, and a system with no ductwork to the bedrooms - were evaluated during heating, cooling, and midseason conditions. The relative ability of each of the three systems was assessed with respect to relevant Air Conditioning Contractors of America (ACCA) and ASHRAE standards for house temperature uniformity and stability, respectively. Computational fluid dynamics (CFD) modeling also was performed and refined based on comparison to field test results to determine the air flow rate into the bedrooms of over-door and bottom-of-door air transfer grilles.

  4. Reference Material

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

    Reference Materials There are a variety of reference materials the NSSAB utilizes and have been made available on its website. Documents Fact Sheets - links to Department of Energy Nevada Field Office webpage Public Reading Room NTA Public Reading Facility Open Monday through Friday, 7:30 am to 4:30 pm (except holidays) 755C East Flamingo Road Las Vegas, Nevada 89119 Phone (702) 794-5106 http://www.nv.doe.gov/library/testingarchive.aspx DOE Electronic Database Also available to the public is an

  5. Proceedings of the 1996 spring technical conference of the ASME Internal Combustion Engine Division. Volume 2: Engine design and engine systems; ICE-Volume 26-2

    SciTech Connect (OSTI)

    Uzkan, T.

    1996-12-31

    Although the cost of the petroleum crude has not increased much within the last decade, the drive to develop internal combustion engines is still continuing. The basic motivation of this drive is to reduce both emissions and costs. Recent developments in computer chip production and information management technology have opened up new applications in engine controls and monitoring. The development of new information is continuing at a rapid pace. Some of these research and development results were presented at the 1996 Spring Technical Conference of the ASME Internal Combustion Engine Division in Youngstown, Ohio, April 21--24, 1996. The papers presented covered various aspects of the design, development, and application of compression ignition and spark ignition engines. The conference was held at the Holiday Inn Metroplex Complex and hosted by Altronic Incorporated of Girard, Ohio. The written papers submitted to the conference have been published in three conference volumes. Volume 2 includes the papers on the topics of engine design, engine systems, and engine user experience.

  6. 230 s room-temperature storage time and 1.14 eV hole localization energy in In{sub 0.5}Ga{sub 0.5}As quantum dots on a GaAs interlayer in GaP with an AlP barrier

    SciTech Connect (OSTI)

    Bonato, Leo Sala, Elisa M.; Stracke, Gernot; Nowozin, Tobias; Strittmatter, André; Ajour, Mohammed Nasser; Daqrouq, Khaled; Bimberg, Dieter

    2015-01-26

    A GaP n{sup +}p-diode containing In{sub 0.5}Ga{sub 0.5}As quantum dots (QDs) and an AlP barrier is characterized electrically, together with two reference samples: a simple n{sup +}p-diode and an n{sup +}p-diode with AlP barrier. Localization energy, capture cross-section, and storage time for holes in the QDs are determined using deep-level transient spectroscopy. The localization energy is 1.14(±0.04) eV, yielding a storage time at room temperature of 230(±60) s, which marks an improvement of 2 orders of magnitude compared to the former record value in QDs. Alternative material systems are proposed for still higher localization energies and longer storage times.

  7. High efficiency, radiation-hard solar cells

    SciTech Connect (OSTI)

    Ager III, J.W.; Walukiewicz, W.

    2004-10-22

    The direct gap of the In{sub 1-x}Ga{sub x}N alloy system extends continuously from InN (0.7 eV, in the near IR) to GaN (3.4 eV, in the mid-ultraviolet). This opens the intriguing possibility of using this single ternary alloy system in single or multi-junction (MJ) solar cells of the type used for space-based surveillance satellites. To evaluate the suitability of In{sub 1-x}Ga{sub x}N as a material for space applications, high quality thin films were grown with molecular beam epitaxy and extensive damage testing with electron, proton, and alpha particle radiation was performed. Using the room temperature photoluminescence intensity as a indirect measure of minority carrier lifetime, it is shown that In{sub 1-x}Ga{sub x}N retains its optoelectronic properties at radiation damage doses at least 2 orders of magnitude higher than the damage thresholds of the materials (GaAs and GaInP) currently used in high efficiency MJ cells. This indicates that the In{sub 1-x}Ga{sub x}N is well-suited for the future development of ultra radiation-hard optoelectronics. Critical issues affecting development of solar cells using this material system were addressed. The presence of an electron-rich surface layer in InN and In{sub 1-x}Ga{sub x}N (0 < x < 0.63) was investigated; it was shown that this is a less significant effect at large x. Evidence of p-type activity below the surface in Mg-doped InN was obtained; this is a significant step toward achieving photovoltaic action and, ultimately, a solar cell using this material.

  8. Press Room - U.S. Energy Information Administration (EIA)

    U.S. Energy Information Administration (EIA) Indexed Site

    Press Releases EIA publishes Annual Energy Outlook 2016 Early Release with a summary of the Reference case, including the Clean Power Plan, and a No-CPP case May 17, 2016 ...

  9. Golden Reading Room: Other NEPA Documents | Department of Energy

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

    Floodplain Assessment for Installation of a Renewable Energy Anaerobic Digester Facility at the University of California, Davis in Yolo County, California Request for Public and ...

  10. Press Room - Press Releases - U.S. Energy Information Administration...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    gas in 2015 have curtailed oil and natural gas drilling and have reduced operating economics; this is anticipated to reduce end-of-year 2015 oil and natural gas reserves U.S. ...

  11. Press Room - Presentations - U.S. Energy Information Administration...

    Gasoline and Diesel Fuel Update (EIA)

    Subject: EIA, petroleum, energy markets, forecasts Presented by: Adam Sieminski, Administrator Presented to: National Association for Business Economics Washington, DC-March 7, ...

  12. Press Room - Press Releases - U.S. Energy Information Administration...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    ... Later in 2015, EIA will include estimates of monthly crude oil production by density, as ... The product described in this press release was prepared by the U.S. Energy Information ...

  13. Press Room - Press Releases - U.S. Energy Information Administration...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    ... transportation and industrial sectors to switch to other sources of energy when possible. ... In addition to the Reference case, the IEO2014 includes a low-oil-price scenario and a ...

  14. Press Room - Press Releases - U.S. Energy Information Administration...

    Gasoline and Diesel Fuel Update (EIA)

    Thus, the effects of California's current drought can be seen with a decline in hydroelectric generation. In another example, EIA's new widget allows users to embed U.S. petroleum ...

  15. Press Room - Press Releases - U.S. Energy Information Administration...

    Gasoline and Diesel Fuel Update (EIA)

    For example, production in California, North Dakota, and Texas has significantly different characteristics. Most of California's oil is heavy, with more than 90% having an API ...

  16. Press Room - Press Releases - U.S. Energy Information Administration...

    Annual Energy Outlook [U.S. Energy Information Administration (EIA)]

    of different oil price paths on U.S. energy markets. U.S. reliance on imported liquid fuels in alternative scenarios (release on April 17, 2013) This article discusses the...

  17. Press Room - Radio - U.S. Energy Information Administration (EIA)

    U.S. Energy Information Administration (EIA) Indexed Site

    Radio Spots Ready-to-broadcast news stories. Transcripts provided so radio spots can be re-recorded in whole or in part. U.S. diesel fuel prices continue to increase mp3 Date: May 23, 2016 Description: The U.S. average retail price for on-highway diesel fuel rose to $2.36 a gallon on Monday. That's up 6 cents from a week ago, based on the weekly price survey by the U.S. Energy Information Administration. Contact/Author: Amerine Woodyard, 202-586-1256 Transcript:

  18. Press Room - Press Releases - U.S. Energy Information Administration...

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

    ... The rapid building of unit train loading terminals, which typically require only 6-12 months to construct, has been important to accommodating oil output growth in these regions. ...

  19. Press Room - Press Releases - U.S. Energy Information Administration...

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

    May 6, 2014 U.S. Energy Information Administration seeks public comment on proposed expansion of natural gas and crude oil production survey As a result of the rapid growth and...

  20. Press Room - Press Releases - U.S. Energy Information Administration...

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

    April 14, 2015 EIA's AEO2015 projects that U.S. energy imports and exports come into balance, a first since the 1950s, because of continued oil and natural gas production growth ...

  1. Teleoperated control system for underground room and pillar mining

    DOE Patents [OSTI]

    Mayercheck, William D. (New Stanton, PA); Kwitowski, August J. (Clairton, PA); Brautigam, Albert L. (Pittsburgh, PA); Mueller, Brian K. (Pittsburgh, PA)

    1992-01-01

    A teleoperated mining system is provided for remotely controlling the various machines involved with thin seam mining. A thin seam continuous miner located at a mining face includes a camera mounted thereon and a slave computer for controlling the miner and the camera. A plurality of sensors for relaying information about the miner and the face to the slave computer. A slave computer controlled ventilation sub-system which removes combustible material from the mining face. A haulage sub-system removes material mined by the continuous miner from the mining face to a collection site and is also controlled by the slave computer. A base station, which controls the supply of power and water to the continuous miner, haulage system, and ventilation systems, includes cable/hose handling module for winding or unwinding cables/hoses connected to the miner, an operator control module, and a hydraulic power and air compressor module for supplying air to the miner. An operator controlled host computer housed in the operator control module is connected to the slave computer via a two wire communications line.

  2. DESCRIPTION BARCODE MANUFACTURER MODEL_NO COST SN BLDG ROOM

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

    DEPARTMENT OF ENERGY Privacy Awareness Training DEPARTMENT OF ENERGY Privacy Awareness Training DEPARTMENT OF ENERGY Privacy Awareness Training PDF icon DEPARTMENT OF ENERGY Privacy Awareness Training More Documents & Publications PIA - INL SECURITY INFORMATION MANAGEMENT SYSTEM BUSINESS ENCLAVE LM Records Handling System (LMRHS01) - Electronic Records Keeping System, Office of Legacy Management, LM Records Handling System-Freedom of Information/Privacy Act, Office of Legacy management

  3. Virtual Reading Room prior to 2000 | National Nuclear Security...

    National Nuclear Security Administration (NNSA)

    ...defaultfilesnnsafoiareadingroomDOC00030.pdf 31.00 Plans-QC-96-0005 Draft 86 Savannah River Operations Ten Year Plan https:nnsa.energy.govsitesdefaultfilesnnsa...

  4. Alarm acknowledgement in a nuclear plant control room

    DOE Patents [OSTI]

    Scarola, Kenneth; Jamison, David S.; Manazir, Richard M.; Rescorl, Robert L.; Harmon, Daryl L.

    1994-01-01

    Alarm acknowledgment can be made not only at the alarm tile array of a given console but via other touch sensitive alarm indications in the screen displays of the monitoring system at the same or other consoles; also, touching one tile can acknowledge multiple alarm sources.

  5. Press Room - Press Releases - U.S. Energy Information Administration...

    Gasoline and Diesel Fuel Update (EIA)

    solar PV capacity and generation With the release of today's Electric Power Monthly (EPM), the U.S. Energy ... Until now, EIA had provided monthly state-level data only ...

  6. Press Room - Testimony - U.S. Energy Information Administration...

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

    16, 2015 21st Century Energy Markets: How the Changing Dynamics of World Energy Markets Impact our Economy and Energy Security pdf Subject: EIA, energy Markets Presented by: Adam...

  7. Room temperature aluminum antimonide radiation detector and methods thereof

    DOE Patents [OSTI]

    Lordi, Vincenzo; Wu, Kuang Jen J.; Aberg, Daniel; Erhart, Paul; Coombs, III, Arthur W; Sturm, Benjamin W

    2015-03-03

    In one embodiment, a method for producing a high-purity single crystal of aluminum antimonide (AlSb) includes providing a growing environment with which to grow a crystal, growing a single crystal of AlSb in the growing environment which comprises hydrogen (H.sub.2) gas to reduce oxide formation and subsequent incorporation of oxygen impurities in the crystal, and adding a controlled amount of at least one impurity to the growing environment to effectively incorporate at least one dopant into the crystal. In another embodiment, a high energy radiation detector includes a single high-purity crystal of AlSb, a supporting structure for the crystal, and logic for interpreting signals obtained from the crystal which is operable as a radiation detector at a temperature of about 25.degree. C. In one embodiment, a high-purity single crystal of AlSb includes AlSb and at least one dopant selected from a group consisting of selenium (Se), tellurium (Te), and tin (Sn).

  8. Development of Personalized Radiant Cooling System for an Office Room

    SciTech Connect (OSTI)

    Khare, Vaibhav; Sharma, Anuj; Mathur, Jyotirmay; Bhandari, Mahabir S

    2015-01-01

    The building industry nowadays is facing two major challenges increased concern for energy reduction and growing need for thermal comfort. These challenges have led many researchers to develop Radiant Cooling Systems that show a large potential for energy savings. This study aims to develop a personalized cooling system using the principle of radiant cooling integrated with conventional all-air system to achieve better thermal environment at the workspace. Personalized conditioning aims to create a microclimatic zone around a single workspace. In this way, the energy is deployed only where it is actually needed, and the individual s needs for thermal comfort are fulfilled. To study the effect of air temperature along with air temperature distribution for workspace, air temperature near the vicinity of the occupant has been obtained as a result of Computational Fluid Dynamics (CFD) simulation using FLUENT. The analysis showed that personalized radiant system improves thermal environment near the workspace and allows all-air systems to work at higher thermostat temperature without compromising the thermal comfort, which in turn reduces its energy consumption.

  9. New Flexible Channels for Room Temperature Tunneling Field Effect...

    Office of Scientific and Technical Information (OSTI)

    Consistent semiconductor-like transport behaviors under various bending conditions are detected by scanning tunneling spectroscopy in a transmission electron microscopy system ...

  10. Giant room-temperature spin caloritronics in spin-semiconducting...

    Office of Scientific and Technical Information (OSTI)

    B Additional Journal Information: Journal Volume: 90; Journal Issue: 12; Journal ID: ISSN 1098-0121 Publisher: American Physical Society Sponsoring Org: USDOE Country of...

  11. Location: SNS CLO, Room C-156 UEC Members attending: Nazanin...

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

    Milan Buncick, Eric Formo, Zheng Gai, Molly Kennedy, Vivek Prabhu, Ray Unocic, Rafael Verduzco Invited guests: Hans Christen, Bobby Sumpter, Tony Haynes, Brad Lokitz...

  12. List of Room Air Conditioners Incentives | Open Energy Information

    Open Energy Info (EERE)

    Active AEP Ohio - Commercial New Construction Energy Efficiency Rebate Program (Ohio) Utility Rebate Program Ohio Commercial Industrial Local Government Municipal Utility...

  13. Variable Speed Fan Retrofits for Computer Room Air Conditioners

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

    Study Bulletin By Lawrence Berkeley National Laboratory Steve Greenberg September 2013 2 Contacts Steve Greenberg Lawrence Berkeley National Laboratory One Cyclotron Road, ...

  14. Efficient room-temperature source of polarized single photons

    DOE Patents [OSTI]

    Lukishova, Svetlana G.; Boyd, Robert W.; Stroud, Carlos R.

    2007-08-07

    An efficient technique for producing deterministically polarized single photons uses liquid-crystal hosts of either monomeric or oligomeric/polymeric form to preferentially align the single emitters for maximum excitation efficiency. Deterministic molecular alignment also provides deterministically polarized output photons; using planar-aligned cholesteric liquid crystal hosts as 1-D photonic-band-gap microcavities tunable to the emitter fluorescence band to increase source efficiency, using liquid crystal technology to prevent emitter bleaching. Emitters comprise soluble dyes, inorganic nanocrystals or trivalent rare-earth chelates.

  15. Fermilab | Press Room | Subscribe to Press Release mailing list

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

    Sheets and Brochures Fermilab Today symmetry Interactions.org Photo and Video Archive Resources for ... Employees Researchers, Postdocs and Graduate Students Job Seekers Neighbors...

  16. Project Title: Vault Type Room Upgrade Project (4543)

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

    exercises and simulation RlB 1.3 - Routine maintenance and custodial services OB 1,4 - Air conditioning installation for existing equipment OB 1.5 - Cooling water system...

  17. Clean Room Challenge: Nanoscientist Quiz 2 | GE Global Research

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

    in the Cleanroom Subscribe to Future Posts Select topics of interest to receive future blogs by email. Subscribe to all future posts Who Ron Olson What AppliancesLighting Where...

  18. Press Room - Events - U.S. Energy Information Administration (EIA)

    Gasoline and Diesel Fuel Update (EIA)

    8, 2014 2014 Summer Fuels Outlook Key factors driving the short-term outlook * World liquid fuels consumption growth driven by emerging economies, with continuing consumption declines in OECD countries. * Non-OPEC supply growth, particularly in North America, expected to keep pace with world liquid fuels consumption growth and contribute to modest declines in world crude oil prices. * Brent crude oil prices fall gradually over the forecast, averaging, from $109 per barrel in 2013 to $105 per

  19. Dynamic alarm presentation in a nuclear plant control room

    DOE Patents [OSTI]

    Kenneth, Scarola; Jamison, David S.; Manazir, Richard M.; Rescorl, Robert L.; Harmon, Daryl L.

    1994-01-01

    The alarm activation set point and priority for a given, spatially fixed alarm tile can vary depending in part on the mode of plant operation.

  20. Virtual Reading Room after to 2000 | National Nuclear Security

    National Nuclear Security Administration (NNSA)

    Administration after to 2000 Sequence Number Report Number Title Read more 1.00 DOE/EA-1381 DRAFT Atlas Relocation and Operation at the Nevada Test Site, Preapproval Draft, Environmental Assessment https://nnsa.energy.gov/sites/default/files/nnsa/foiareadingroom/RR0001.pdf 2.00 DOE/EA-1364 Predecisional Draft Environmental Assessment for the Proposed Construction and Operation of a Biosafety Level 3 Facility at LANL