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Sample records for momentary contact switch

  1. Doped Contacts for High-Longevity Optically Activated, High Gain GaAs Photoconductive Semiconductor Switches

    SciTech Connect (OSTI)

    MAR,ALAN; LOUBRIEL,GUILLERMO M.; ZUTAVERN,FRED J.; O'MALLEY,MARTIN W.; HELGESON,WESLEY D.; BROWN,DARWIN JAMES; HJALMARSON,HAROLD P.; BACA,ALBERT G.; THORNTON,R.L.; DONALDSON,R.D.

    1999-12-17

    The longevity of high gain GaAs photoconductive semiconductor switches (PCSS) has been extended to over 100 million pulses. This was achieved by improving the ohmic contacts through the incorporation of a doped layer that is very effective in the suppression of filament formation, alleviating current crowding. Damage-free operation is now possible with virtually infinite expected lifetime at much higher current levels than before. The inherent damage-free current capacity of the bulk GaAs itself depends on the thickness of the doped layers and is at least 100A for a dopant diffusion depth of 4pm. The contact metal has a different damage mechanism and the threshold for damage ({approx}40A) is not further improved beyond a dopant diffusion depth of about 2{micro}m. In a diffusion-doped contact switch, the switching performance is not degraded when contact metal erosion occurs, unlike a switch with conventional contacts. This paper will compare thermal diffusion and epitaxial growth as approaches to doping the contacts. These techniques will be contrasted in terms of the fabrication issues and device characteristics.

  2. Switch contact device for interrupting high current, high voltage, AC and DC circuits

    DOE Patents [OSTI]

    Via, Lester C.; Witherspoon, F. Douglas; Ryan, John M.

    2005-01-04

    A high voltage switch contact structure capable of interrupting high voltage, high current AC and DC circuits. The contact structure confines the arc created when contacts open to the thin area between two insulating surfaces in intimate contact. This forces the arc into the shape of a thin sheet which loses heat energy far more rapidly than an arc column having a circular cross-section. These high heat losses require a dramatic increase in the voltage required to maintain the arc, thus extinguishing it when the required voltage exceeds the available voltage. The arc extinguishing process with this invention is not dependent on the occurrence of a current zero crossing and, consequently, is capable of rapidly interrupting both AC and DC circuits. The contact structure achieves its high performance without the use of sulfur hexafluoride.

  3. Contact

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    home / Contact To contact The National Ignition Facility - Click Here

  4. Low frequency noise in the unstable contact region of Au-to-Au microcontact for microelectromechanical system switches

    SciTech Connect (OSTI)

    Qiu, Haodong; Wang, Hong; Ke, Feixiang

    2014-06-23

    The noise behavior of Au-to-Au microcontact for microelectromechanical system switches has been experimentally studied in the unstable contact region. The results suggest that the electrical conduction remains nonmetallic at the initial stage during contact formation due to the existence of alien films, and traps in the alien layer located at the contact interface could play an important role in determining the conduction noise. The conduction fluctuation induced by electron trapping-detrapping associated with the hydrocarbon layer is found to be an intrinsic noise source contributing to the low frequency noise in the unstable contact region.

  5. Contacts

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    Contacts Contacts Please, if you have questions, feel free to contact us Matt Ahlquist (505) 665-7357 ahlquist@lanl.gov Carmela Rodriguez (505) 665-5237 carmela@lanl.gov...

  6. Contacts

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    Contacts Contacts Questions? Contact us! Protecting the future by securing and safeguarding nuclear materials at LANL Your hosts for this meeting: Michael Duvall Assistant Manager, Safeguards and Security NA-00-LA Field Office (505) 665-5036 Michael.duvall@nnsa.doe.gov Michael Lansing Associate Director for Security and Safeguards Los Alamos National Laboratory (505) 667-4875 lansing@lanl.gov Your contact for registration, clearances, other logistics: Christy Archuleta Chief of Staff, Associate

  7. Contacts

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    Contacts Contacts Feel free to contact us for more information. Program Director Bill Archer (505) 665-7235 Email Executive Advisor Mark Anderson (505) 667-4772 Email Program Specialist Jean Harris (505) 667-5778 Email Executive Administrator Roberta Viarreal (505) 667-9128 Email

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    P-27 Group Information Names and phone numbers for P-27 group management and office administrators. Group Contacts P-27 Name Phone Group Leader Gus Sinnis 667-9217 Deputy Group Leader Charles Kelsey 665-5579 Deputy Group Leader Fredrik Tovesson 665-9652 Group Administrator Julie Quintana-Valdez 665-5390 Experimental Area Manager Charles Kelsey 665-5579 Safety Officer Frances Aull 667-6095 Links Group Contacts Group Roster Buildings and Offices Instrument Contacts

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    CAMD Safety Home MSDS Search MSDS Help Safety Training and Tests Contact Links LSU Campus Safety Glossary Name: Email Address Subject: Message: Submit The J. Bennett Johnston, Sr....

  10. CONTACT

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    information about the LANSCE user program, contact lansce-user-office@lanl.gov. Kurt Schoenberg LANSCE User Facility Director LANSCE User Office lansce.lanl.gov...

  11. Contacts

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    Contacts Additional Contacts MaRIE is the experimental facility needed to control the time-dependent properties of materials for national security science missions. It fils the capability gap needed to develop qualified, certifiable, flexible, and low-cost product-based solutions to many materials problems. Project Manager John P. Tapia (505) 665-7653 Email Strategic Coordinator Lucy P. Maestas (505) 667-0055 Email System Integration John Erickson (505) 667-1839 Email

  12. Contacts:

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    Department of Energy's Critical Materials Institute offers membership program Contacts: Stacy Joiner, program coordinator, Ames Laboratory joiner@ameslab.gov or 515-294-5932 Laura Millsaps, public affairs, Ames Laboratory, millsaps@ameslab.gov or 515-294-3474 The Critical Materials Institute, a U.S. Department of Energy (DOE) Innovation Hub, is offering a membership program for organizations with a stake in rare-earth and other critical element research. The Critical Materials Institute is a

  13. Switch Switch

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    Switch Switch Run end at 6pm at 6pm at 6am 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Day Inst. start CAMP: Epp L338 L357 Com L272 Chap Night Com Feldkamp Cavalleri Cav H H 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu

  14. Contact | The Ames Laboratory

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    Contact Contact Information

  15. JLF Contacts

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    JLF Contacts JLF Staff - March 2015

  16. Contact Us

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    for Proposals Agreement Mechanisms Innovations Technologies Patents Publications Contact Us LACED Contact Us Contact Us . Contacts If you have a complex problem related to...

  17. Switch wear leveling

    DOE Patents [OSTI]

    Wu, Hunter; Sealy, Kylee; Gilchrist, Aaron

    2015-09-01

    An apparatus for switch wear leveling includes a switching module that controls switching for two or more pairs of switches in a switching power converter. The switching module controls switches based on a duty cycle control technique and closes and opens each switch in a switching sequence. The pairs of switches connect to a positive and negative terminal of a DC voltage source. For a first switching sequence a first switch of a pair of switches has a higher switching power loss than a second switch of the pair of switches. The apparatus includes a switch rotation module that changes the switching sequence of the two or more pairs of switches from the first switching sequence to a second switching sequence. The second switch of a pair of switches has a higher switching power loss than the first switch of the pair of switches during the second switching sequence.

  18. Contact Information | The Ames Laboratory

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    Contact Information Contact Information

  19. Optical Switch

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    found in a fluorescent light bulb, is electrically conductive yet transparent to the NIF laser beam. This configuration allows for uniform switching across a large beam with a...

  20. switched-bed regenerators

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    switched-bed regenerators - Sandia Energy Energy Search Icon Sandia Home Locations Contact Us Employee Locator Energy & Climate Secure & Sustainable Energy Future Stationary Power Energy Conversion Efficiency Solar Energy Wind Energy Water Power Supercritical CO2 Geothermal Natural Gas Safety, Security & Resilience of the Energy Infrastructure Energy Storage Nuclear Power & Engineering Grid Modernization Battery Testing Nuclear Fuel Cycle Defense Waste Management Programs

  1. Optical switches and switching methods

    DOE Patents [OSTI]

    Doty, Michael

    2008-03-04

    A device and method for collecting subject responses, particularly during magnetic imaging experiments and testing using a method such as functional MRI. The device comprises a non-metallic input device which is coupled via fiber optic cables to a computer or other data collection device. One or more optical switches transmit the subject's responses. The input device keeps the subject's fingers comfortably aligned with the switches by partially immobilizing the forearm, wrist, and/or hand of the subject. Also a robust nonmetallic switch, particularly for use with the input device and methods for optical switching.

  2. WINDExchange: Contacts

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    WINDExchange Printable Version Bookmark and Share Contacts Website and program contacts are provided below. Website Contact Send us your comments, report problems, and/or ask questions about information on this site. WINDExchange Contacts Contact information for the WINDExchange initiative. WINDExchange is a resource of the Department of Energy's Wind Program. Contact Us | Wind Program | Office of Energy Efficiency & Renewable Energy Content Last Updated: 11/4/2014

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    About Contact us Contact us Technical Questions, Computer Operations, Passwords, Account Support 1-800-666-3772 (or 1-510-486-8600) Computer Operations Account Support HPC...

  6. Acceleration switch

    DOE Patents [OSTI]

    Abbin, Jr., Joseph P. (Albuquerque, NM); Devaney, Howard F. (Cedar Crest, NM); Hake, Lewis W. (Albuquerque, NM)

    1982-08-17

    The disclosure relates to an improved integrating acceleration switch of the type having a mass suspended within a fluid filled chamber, with the motion of the mass initially opposed by a spring and subsequently not so opposed.

  7. Acceleration switch

    DOE Patents [OSTI]

    Abbin, Jr., Joseph P. (Albuquerque, NM); Middleton, John N. (Albuquerque, NM); Schildknecht, Harold E. (Albuquerque, NM)

    1981-01-01

    The disclosure relates to an improved acceleration switch, of the type having a mass suspended within a chamber, having little fluid damping at low g levels and high fluid damping at high g levels.

  8. Mercury switch with non-wettable electrodes

    DOE Patents [OSTI]

    Karnowsky, Maurice M. (Albulquerque, NM); Yost, Frederick G. (Carlsbad, NM)

    1987-01-01

    A mercury switch device comprising a pool of mercury and a plurality of electrical contacts made of or coated with a non-wettable material such as titanium diboride.

  9. Contact Information | The Ames Laboratory

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    Contact Information

  10. Optical switch

    DOE Patents [OSTI]

    Reedy, R.P.

    1987-11-10

    An optical switching device is provided whereby light from a first glass fiber or a second glass fiber may be selectively transmitted into a third glass fiber. Each glass fiber is provided with a focusing and collimating lens system. In one mode of operation, light from the first glass fiber is reflected by a planar mirror into the third glass fiber. In another mode of operation, light from the second glass fiber passes directly into the third glass fiber. The planar mirror is attached to a rotatable table which is rotated to provide the optical switching. 3 figs.

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    Contacts & Resources Contacts & Resources Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 envoutreach@lanl.gov Public...

  12. Contact Us

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    Contacts CAMD Contacts: John Scott, Scientific Director (225) 578-4605 office Craig Stevens, Director for Administration (225) 578-4603 office For more information: LSU-CAMD 6980...

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    Contact Us Contact Us The Research Library staff is happy to answer questions that you may have regarding our collection, access services and more. We are also available to assist...

  14. Contact Us

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    Contact Us About ESnet Our Mission The Network ESnet History Governance & Policies Career Opportunities ESnet Staff & Org Chart Contact Us Contact Us Technical Assistance: 1 800-33-ESnet (Inside US) 1 800-333-7638 (Inside US) 1 510-486-7600 (Globally) 1 510-486-7607 (Globally) Report Network Problems: trouble@es.net Provide Web Site Feedback: info@es.net Contact Us ESnet Administration Operations Research Outreach and Communications Inder Monga Division Director (Interim) Scientific

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    govPublicationsContacts Publications Journal Articles Conference Documents Program Documents Technical Reports Publications Database Public Information Materials Image Library Videos Publication Resources Submit a Publication Publishing Procedures ARM Style Guide (PDF, 448KB) Acronyms Glossary Logos Contacts RSS for Publications Contacts ARM Communications Team Lead - Hanna Goss, Pacific Northwest National Laboratory Managing Editor of Public Information - Rolanda Jundt, Pacific Northwest

  16. Silicone oil contamination and electrical contact resistance degradation of low-force gold contacts.

    SciTech Connect (OSTI)

    Dugger, Michael Thomas; Dickrell, Daniel John, III

    2006-02-01

    Hot-switched low-force gold electrical contact testing was performed using a nanomechanical test apparatus to ascertain the sensitivity of simulated microelectromechanical systems (MEMS) contact to silicone oil contamination. The observed cyclic contact resistance degradation was dependent on both closure rate and noncontact applied voltage. The decomposition of silicone oil from electrical arcing was hypothesized as the degradation mechanism.

  17. WINDExchange: Contacts

    Wind Powering America (EERE)

    About Printable Version Bookmark and Share Contacts WINDExchange Staff Contacts This page introduces the WINDExchange team. If you have questions, please contact the Webmaster. Photo of Patrick Gilman Patrick Gilman Wind Energy Deployment Manager, U.S. Department of Energy 720-356-1420 Photo of Bret Barker Bret Barker Strategic Advisor for Distributed Wind, U.S. Department of Energy 202-586-7821 Photo of Ian Baring-Gould Ian Baring-Gould WINDExchange Technical Director, National Renewable Energy

  18. Contact Information

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    default Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects & Initiatives Finance & Rates...

  19. Fast Superconducting Switch for Superconducting Power Devices - Energy

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    Innovation Portal Fast Superconducting Switch for Superconducting Power Devices Brookhaven National Laboratory Contact BNL About This Technology Publications: PDF Document Publication Fast high-temperature superconductor switch for high current applications. (1,424 KB) Conceptual drawing of the fast superconducting switch.<br type="_moz" /> Conceptual drawing of the fast superconducting switch. Technology Marketing Summary Superconducting magnetic energy storage (SMES) offers

  20. PNNL: Contacts

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    Contacts Have a Question or Comment? Please use our feedback form. We would love to hear from you. Looking for a Staff Member at PNNL? Use our searchable staff directory to find staff contact information. Information returned includes staff name and telephone number. Phone Numbers and Addresses View our phone and address book for mailing addresses and important phone numbers

  1. Media Contacts

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  2. ARM - Contacts

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    Contacts Related Links RHUBC Home NSA Home ARM Data Discovery Browse Data Experiment Planning RHUBC Proposal Abstract Full Proposal (pdf, 420kb) Science Plan (pdf) Operations Plan (pdf, 144kb) Instruments Contacts News ARM Press Release (Feb. 26, 2007) Images flickr_dots Contacts Dave Turner, RHUBC PI, ARM instrument mentor for the AERI-ER Eli Mlawer, RHUBC PI Paul Green, RHUBC co-I, principal investigator for the TAFTS Ed Westwater, RHUBC co-I, principal investigator for the GSR Maria Cadeddu,

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    govAboutContacts About Become a User Recovery Act Mission FAQ Outreach Displays History Organization Participants Facility Statistics Forms Contacts Facility Documents ARM Management Plan (PDF, 1.3MB) Field Campaign Guidelines (PDF, 574KB) ARM Climate Research Facility Expansion Workshop (PDF, 1.46MB) Facility Activities ARM and the Recovery Act Contributions to International Polar Year Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Contacts

  4. Advanced Soft Switching Inverter for Reducing Switching and Power...

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

    Soft Switching Inverter for Reducing Switching and Power Losses Advanced Soft Switching Inverter for Reducing Switching and Power Losses 2009 DOE Hydrogen Program and Vehicle...

  5. Advanced Soft Switching Inverter for Reducing Switching and Power...

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

    Soft Switching Inverter for Reducing Switching and Power Losses Advanced Soft Switching Inverter for Reducing Switching and Power Losses 2010 DOE Vehicle Technologies and Hydrogen...

  6. Website Contact

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    Contact the website administrator with questions, comments, or issues related to the Federal Energy Management Program website. If your inquiry is in regard to a specific Web page, please include...

  7. Contacts | NISAC

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    NISACContacts content top Contacts Posted by Admin on Feb 27, 2012 in | Comments 0 comments Sandia National Laboratories Department of Homeland Security Los Alamos National Laboratory SNL Resilient Infrastructure Systems Senior Program Manager Bill Rhodes wgrhode@sandia.gov 505-844-4597 SNL NISAC Program Manager Lori Parrott lkparro@sandia.gov 505-844-2745 SNL NISAC Technical Program Lead Theresa... Read More Contacts

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  9. Contacts | NISAC

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    NISACContacts content top Contacts Sandia National Laboratories Department of Homeland Security Los Alamos National Laboratory SNL Resilient Infrastructure Systems Senior Program Manager Bill Rhodes wgrhode@sandia.gov 505-844-4597 SNL NISAC Program Manager Lori Parrott lkparro@sandia.gov 505-844-2745 SNL NISAC Technical Program Lead Theresa Brown tjbrown@sandia.gov 505-844-5247 Director Homeland Infrastructure Threat and Risk Analysis Center (HITRAC) Brandon Wales Deputy Director, HITRAC Tommy

  10. Media Contact:

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    CHPRC News Release August 11, 2014 Media Contact: Geoff Tyree, DOE, (509)376-4171, geoffrey.tyree@rl.doe.gov Destry Henderson, CH2M HILL, (509) 376-8644, destry_j_henderson@rl.gov WORKERS CREATING DEMOLITION ZONE AT HANFORD'S PLUTONIUM FINISHING PLANT Administration building and other support buildings removed ahead of main facility demolition Over the last few weeks, the look of Hanford's main plutonium plant has changed as crews have removed or demolished eight buildings surrounding the

  11. Media contact:

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    March 16, 2015 Media Contacts: Peter Bengtson, Washington Closure Hanford, (509) 372-9031, Peter.Bengtson@wch-rcc.com Cameron Hardy, DOE, (509) 376-5365, Cameron.Hardy@rl.doe.gov Hanford Landfill Reaches 17 Million Tons Disposed Waste disposal measures tremendous cleanup progress along Hanford's River Corridor RICHLAND, Wash. - The U.S. Department of Energy (DOE) and its contractors have disposed of 17 million tons of contaminated material at the Environmental Restoration Disposal Facility

  12. Radiation hard vacuum switch

    DOE Patents [OSTI]

    Boettcher, Gordon E. (Albuquerque, NM)

    1990-01-01

    A vacuum switch with an isolated trigger probe which is not directly connected to the switching electrodes. The vacuum switch within the plasmatron is triggered by plasma expansion initiated by the trigger probe which travels through an opening to reach the vacuum switch elements. The plasma arc created is directed by the opening to the space between the anode and cathode of the vacuum switch to cause conduction.

  13. Multi-line triggering and interdigitated electrode structure for photoconductive semiconductor switches

    DOE Patents [OSTI]

    Mar, Alan (Albuquerque, NM); Zutavern, Fred J. (Albuquerque, NM); Loubriel, Guillermo (Albuquerque, NM)

    2007-02-06

    An improved photoconductive semiconductor switch comprises multiple-line optical triggering of multiple, high-current parallel filaments between the switch electrodes. The switch can also have a multi-gap, interdigitated electrode for the generation of additional parallel filaments. Multi-line triggering can increase the switch lifetime at high currents by increasing the number of current filaments and reducing the current density at the contact electrodes in a controlled manner. Furthermore, the improved switch can mitigate the degradation of switching conditions with increased number of firings of the switch.

  14. Contact Us

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    Contact Us The TRACC Service Desk provides user support and assistance for issues related to TRACC resources. It is dedicated to helping users make the best use of TRACC resources. Support analysts will draw upon Argonne's expertise in computational and scientific domains to respond to a variety of user needs. The preferred method of requesting assistance from the TRACC Service Desk is through e-mail. Additionally, the TRACC Service Desk staff is available from 9:00 AM to 4:00 PM, Monday through

  15. Latching micro optical switch

    DOE Patents [OSTI]

    Garcia, Ernest J; Polosky, Marc A

    2013-05-21

    An optical switch reliably maintains its on or off state even when subjected to environments where the switch is bumped or otherwise moved. In addition, the optical switch maintains its on or off state indefinitely without requiring external power. External power is used only to transition the switch from one state to the other. The optical switch is configured with a fixed optical fiber and a movable optical fiber. The movable optical fiber is guided by various actuators in conjunction with a latching mechanism that configure the switch in one position that corresponds to the on state and in another position that corresponds to the off state.

  16. Laser-triggered vacuum switch

    DOE Patents [OSTI]

    Brannon, P.J.; Cowgill, D.F.

    1990-12-18

    A laser-triggered vacuum switch has a material such as a alkali metal halide on the cathode electrode for thermally activated field emission of electrons and ions upon interaction with a laser beam, the material being in contact with the cathode with a surface facing the discharge gap. The material is preferably a mixture of KCl and Ti powders. The laser may either shine directly on the material, preferably through a hole in the anode, or be directed to the material over a fiber optic cable. 10 figs.

  17. Laser-triggered vacuum switch

    DOE Patents [OSTI]

    Brannon, Paul J. (Albuquerque, NM); Cowgill, Donald F. (Danville, CA)

    1990-01-01

    A laser-triggered vacuum switch has a material such as a alkali metal halide on the cathode electrode for thermally activated field emission of electrons and ions upon interaction with a laser beam, the material being in contact with the cathode with a surface facing the discharge gap. The material is preferably a mixture of KCl and Ti powders. The laser may either shine directly on the material, preferably through a hole in the anode, or be directed to the material over a fiber optic cable.

  18. Capacitive microelectromechanical switches with dynamic soft-landing

    DOE Patents [OSTI]

    Jain, Ankit; Alam, Muhammad Ashraful; Nair, Pradeep R.

    2015-10-13

    A microelectromechanical system (MEMS)-based electrical switch. The electrical switch includes a moveable electrode, a dielectric layer positioned adjacent the moveable electrode on a first side of the dielectric layer and spaced apart from the moveable electrode when the moveable electrode is in an inactivated position and in contact with the moveable electrode when the moveable electrode is in an activated position, and a substrate attached to the dielectric layer on a second side opposite to the first side, the moveable electrode is configured to brake prior to coming in contact with the dielectric layer when the moveable electrode is switched between the inactivated state and the activated state.

  19. Remote switch actuator

    DOE Patents [OSTI]

    Haas, Edwin Gerard; Beauman, Ronald; Palo, Jr., Stefan

    2013-01-29

    The invention provides a device and method for actuating electrical switches remotely. The device is removably attached to the switch and is actuated through the transfer of a user's force. The user is able to remain physically removed from the switch site obviating need for protective equipment. The device and method allow rapid, safe actuation of high-voltage or high-current carrying electrical switches or circuit breakers.

  20. Triggered plasma opening switch

    DOE Patents [OSTI]

    Mendel, Clifford W. (Albuquerque, NM)

    1988-01-01

    A triggerable opening switch for a very high voltage and current pulse includes a transmission line extending from a source to a load and having an intermediate switch section including a plasma for conducting electrons between transmission line conductors and a magnetic field for breaking the plasma conduction path and magnetically insulating the electrons when it is desired to open the switch.

  1. Electro-mechanical heat switch for cryogenic applications

    DOE Patents [OSTI]

    van den Berg, Marcel L. (Oakland, CA); Batteux, Jan D. (Hayward, CA); Labov, Simon E. (Berkeley, CA)

    2003-01-01

    A heat switch includes two symmetric jaws. Each jaw is comprised of a link connected at a translatable joint to a flexible arm. Each arm rotates about a fixed pivot, and has an articulated end including a thermal contact pad connected to a heat sink. The links are joined together at a translatable main joint. To close the heat switch, a closing solenoid is actuated and forces the main joint to an over-center position. This movement rotates the arms about their pivots, respectively, forces each of them into a stressed configuration, and forces the thermal contact pads towards each other and into compressive contact with a cold finger. The closing solenoid is then deactivated. The heat switch remains closed due to a restoring force generated by the stressed configuration of each arm, until actuation of an opening solenoid returns the main joint to its starting open-switch position.

  2. Contact Us - SRSCRO

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    contact Contact Us For further information concerning the SRS Community Reuse Organization, contact: Mailing Address: SRSCRO P. O. Box 696 Aiken, SC 29802 Physical Address: SRSCRO...

  3. Sandia Energy - Contact Us

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    Contact Us Home Secure and Sustainable Energy Future Mission Contact Us Contact UsTara Camacho-Lopez2015-07-11T03:17:00+00:00 You have already submitted a contact form. Please try...

  4. Effective switching frequency multiplier inverter

    DOE Patents [OSTI]

    Su, Gui-Jia (Oak Ridge, TN); Peng, Fang Z. (Okemos, MI)

    2007-08-07

    A switching frequency multiplier inverter for low inductance machines that uses parallel connection of switches and each switch is independently controlled according to a pulse width modulation scheme. The effective switching frequency is multiplied by the number of switches connected in parallel while each individual switch operates within its limit of switching frequency. This technique can also be used for other power converters such as DC/DC, AC/DC converters.

  5. Solid state switch

    DOE Patents [OSTI]

    Merritt, Bernard T. (Livermore, CA); Dreifuerst, Gary R. (Livermore, CA)

    1994-01-01

    A solid state switch, with reverse conducting thyristors, is designed to operate at 20 kV hold-off voltage, 1500 A peak, 1.0 .mu.s pulsewidth, and 4500 pps, to replace thyratrons. The solid state switch is more reliable, more economical, and more easily repaired. The switch includes a stack of circuit card assemblies, a magnetic assist and a trigger chassis. Each circuit card assembly contains a reverse conducting thyristor, a resistor capacitor network, and triggering circuitry.

  6. Thermally actuated thermionic switch

    DOE Patents [OSTI]

    Barrus, Donald M.; Shires, Charles D.

    1988-01-01

    A thermally actuated thermionic switch which responds to an increase of temperature by changing from a high impedance to a low impedance at a predictable temperature set point. The switch has a bistable operation mode switching only on temperature increases. The thermionic material may be a metal which is liquid at the desired operation temperature and held in matrix in a graphite block reservoir, and which changes state (ionizes, for example) so as to be electrically conductive at a desired temperature.

  7. Thermally actuated thermionic switch

    DOE Patents [OSTI]

    Barrus, D.M.; Shires, C.D.

    1982-09-30

    A thermally actuated thermionic switch which responds to an increase of temperature by changing from a high impedance to a low impedance at a predictable temperature set point. The switch has a bistable operation mode switching only on temperature increases. The thermionic material may be a metal which is liquid at the desired operation temperature and held in matrix in a graphite block reservoir, and which changes state (ionizes, for example) so as to be electrically conductive at a desired temperature.

  8. Alarm toe switch

    DOE Patents [OSTI]

    Ganyard, Floyd P. (Albuquerque, NM)

    1982-01-01

    An alarm toe switch inserted within a shoe for energizing an alarm circuit n a covert manner includes an insole mounting pad into which a miniature reed switch is fixedly molded. An elongated slot perpendicular to the reed switch is formed in the bottom surface of the mounting pad. A permanent cylindrical magnet positioned in the forward portion of the slot with a diameter greater than the pad thickness causes a bump above the pad. A foam rubber block is also positioned in the slot rearwardly of the magnet and holds the magnet in normal inoperative relation. A non-magnetic support plate covers the slot and holds the magnet and foam rubber in the slot. The plate minimizes bending and frictional forces to improve movement of the magnet for reliable switch activation. The bump occupies the knuckle space beneath the big toe. When the big toe is scrunched rearwardly the magnet is moved within the slot relative to the reed switch, thus magnetically activating the switch. When toe pressure is released the foam rubber block forces the magnet back into normal inoperative position to deactivate the reed switch. The reed switch is hermetically sealed with the magnet acting through the wall so the switch assembly S is capable of reliable operation even in wet and corrosive environments.

  9. Reusable fast opening switch

    DOE Patents [OSTI]

    Van Devender, John P. (Albuquerque, NM); Emin, David (Albuquerque, NM)

    1986-01-01

    A reusable fast opening switch for transferring energy, in the form of a high power pulse, from an electromagnetic storage device such as an inductor into a load. The switch is efficient, compact, fast and reusable. The switch comprises a ferromagnetic semiconductor which undergoes a fast transition between conductive and insulating states at a critical temperature and which undergoes the transition without a phase change in its crystal structure. A semiconductor such as europium rich europhous oxide, which undergoes a conductor to insulator transition when it is joule heated from its conductor state, can be used to form the switch.

  10. Reusable fast opening switch

    DOE Patents [OSTI]

    Van Devender, J.P.; Emin, D.

    1983-12-21

    A reusable fast opening switch for transferring energy, in the form of a high power pulse, from an electromagnetic storage device such as an inductor into a load. The switch is efficient, compact, fast and reusable. The switch comprises a ferromagnetic semiconductor which undergoes a fast transition between conductive and metallic states at a critical temperature and which undergoes the transition without a phase change in its crystal structure. A semiconductor such as europium rich europhous oxide, which undergoes a conductor to insulator transition when it is joule heated from its conductor state, can be used to form the switch.

  11. Reflective HTS switch

    DOE Patents [OSTI]

    Martens, Jon S. (Albuquerque, NM); Hietala, Vincent M. (Placitas, NM); Hohenwarter, Gert K. G. (Madison, WI)

    1994-01-01

    A HTS switch includes a HTS conductor for providing a superconducting path for an electrical signal and an serpentine wire actuator for controllably heating a portion of the conductor sufficiently to cause that portion to have normal, and not superconducting, resistivity. Mass of the portion is reduced to decrease switching time.

  12. Reflective HTS switch

    DOE Patents [OSTI]

    Martens, J.S.; Hietala, V.M.; Hohenwarter, G.K.G.

    1994-09-27

    A HTS (High Temperature Superconductor) switch includes a HTS conductor for providing a superconducting path for an electrical signal and an serpentine wire actuator for controllably heating a portion of the conductor sufficiently to cause that portion to have normal, and not superconducting, resistivity. Mass of the portion is reduced to decrease switching time. 6 figs.

  13. Advanced Soft Switching Inverter for Reducing Switching and Power Losses |

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

    Department of Energy Soft Switching Inverter for Reducing Switching and Power Losses Advanced Soft Switching Inverter for Reducing Switching and Power Losses 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon ape_06_lai.pdf More Documents & Publications Advanced Soft Switching Inverter for Reducing Switching and Power Losses Electro-thermal-mechanical Simulation and Reliability for

  14. Erected mirror optical switch

    DOE Patents [OSTI]

    Allen, James J.

    2005-06-07

    A microelectromechanical (MEM) optical switching apparatus is disclosed that is based on an erectable mirror which is formed on a rotatable stage using surface micromachining. An electrostatic actuator is also formed on the substrate to rotate the stage and mirror with a high angular precision. The mirror can be erected manually after fabrication of the device and used to redirect an incident light beam at an arbitrary angel and to maintain this state in the absence of any applied electrical power. A 1.times.N optical switch can be formed using a single rotatable mirror. In some embodiments of the present invention, a plurality of rotatable mirrors can be configured so that the stages and mirrors rotate in unison when driven by a single micromotor thereby forming a 2.times.2 optical switch which can be used to switch a pair of incident light beams, or as a building block to form a higher-order optical switch.

  15. State Biomass Contacts

    Broader source: Energy.gov [DOE]

    Most state governments have designated contacts for biomass conversion programs. The following contacts used by the Bioenergy Technologies Office may also be good contacts for you to find out about...

  16. Contacts | Department of Energy

    Office of Environmental Management (EM)

    Contacts Contacts Contact Information Below you will find contact information related to FORGE: FORGE For questions about current FORGE activity, please contact: FORGECommunications@ee.doe.gov For questions about the FORGE FOA, please contact: de-foa-0000890-forge@netl.doe.gov Geothermal Office U.S. Department of Energy Geothermal Technologies Office 1000 Independence Avenue, SW Washington, DC 20585 geothermal@ee.doe.gov 202-287-1818 FORGE Team Principal Investigators Idaho National Laboratory -

  17. Transmission - Contact Information

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    Contact-Information-Transmission Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects &...

  18. Transmission Contact Information

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

    Contact-Information Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects & Initiatives Finance &...

  19. Contact Us - Hanford Site

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    Hanford Site Wide Programs Health & Safety Exposition Contact Us About Us Booth Awards Special Events Exhibitor Information What is EXPO Electronic Registration Form Contact Us...

  20. US ITER | Contact Us

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    ABOUT US ITER | WHY FUSION? | DOING BUSINESS WITH US ITER | MEDIA CORNER | JOBS | CONTACT US Visitor Information Key Contact Staff Directory Organizational Charts U.S. ITER...

  1. US ITER | Contact Us

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

    US Key Contact Key Contact Mark Uhran Communications Manager 865-574-8381 ITER International Department of Energy Office of Science Oak Ridge National Laboratory Princeton Plasma...

  2. CAMD contact person

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

    Craig Stevens is the CAMD contact for answering questions about getting started on new projects or proposals, andor how to go about getting facility access, etc. Contact Info:...

  3. Safety Staff Contact Information

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

    Safety Staff Contact Information Print Contact Extension Location CONTROL ROOM (247) 4969 80-140 Floor Operations Floor Operators 7464 (RING) 80-159 Building Manager Jeff Troutman...

  4. Contact Us | NREL

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

    Contact Us Find mailing addresses, phone numbers, and contact information for NREL staff. Mailing Address and Phone Numbers Golden, Colorado Laboratories and Offices National...

  5. Fermilab | Contact Fermilab

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

    Contact Fermilab Navbar Toggle About Quick Info Science History Organization Photo and video gallery Diversity Education Safety Sustainability and environment Contact Newsroom...

  6. ARM - AAF Contacts

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

    Campaigns 1993 - 2006, 2015 Other Aircraft Campaigns 1993 - 2010 AAF Contacts Rickey Petty DOE AAF Program Director Beat Schmid Technical Director AAF Contacts DOE AAF Program...

  7. Photoconductive switch package

    DOE Patents [OSTI]

    Caporaso, George J

    2015-11-05

    A photoconductive switch is formed of a substrate that has a central portion of SiC or other photoconductive material and an outer portion of cvd-diamond or other suitable material surrounding the central portion. Conducting electrodes are formed on opposed sides of the substrate, with the electrodes extending beyond the central portion and the edges of the electrodes lying over the outer portion. Thus any high electric fields produced at the edges of the electrodes lie outside of and do not affect the central portion, which is the active switching element. Light is transmitted through the outer portion to the central portion to actuate the switch.

  8. Photoconductive switch package

    DOE Patents [OSTI]

    Caporaso, George J.

    2015-10-27

    A photoconductive switch is formed of a substrate that has a central portion of SiC or other photoconductive material and an outer portion of cvd-diamond or other suitable material surrounding the central portion. Conducting electrodes are formed on opposed sides of the substrate, with the electrodes extending beyond the central portion and the edges of the electrodes lying over the outer portion. Thus any high electric fields produced at the edges of the electrodes lie outside of and do not affect the central portion, which is the active switching element. Light is transmitted through the outer portion to the central portion to actuate the switch.

  9. Photoconductive switch package

    DOE Patents [OSTI]

    Ca[rasp, George J

    2013-10-22

    A photoconductive switch is formed of a substrate that has a central portion of SiC or other photoconductive material and an outer portion of cvd-diamond or other suitable material surrounding the central portion. Conducting electrodes are formed on opposed sides of the substrate, with the electrodes extending beyond the central portion and the edges of the electrodes lying over the outer portion. Thus any high electric fields produced at the edges of the electrodes lie outside of and do not affect the central portion, which is the active switching element. Light is transmitted through the outer portion to the central portion to actuate the switch.

  10. Solid state switch

    DOE Patents [OSTI]

    Merritt, B.T.; Dreifuerst, G.R.

    1994-07-19

    A solid state switch, with reverse conducting thyristors, is designed to operate at 20 kV hold-off voltage, 1,500 A peak, 1.0 [mu]s pulsewidth, and 4,500 pps, to replace thyratrons. The solid state switch is more reliable, more economical, and more easily repaired. The switch includes a stack of circuit card assemblies, a magnetic assist and a trigger chassis. Each circuit card assembly contains a reverse conducting thyristor, a resistor capacitor network, and triggering circuitry. 6 figs.

  11. Chemical Management Contacts

    Broader source: Energy.gov [DOE]

    Contacts for additional information on Chemical Management and brief description on Energy Facility Contractors Group

  12. An optical switch

    DOE Patents [OSTI]

    Christophorou, L.G.; Hunter, S.R.

    1987-04-30

    The invention is a gas mixture for a diffuse discharge switch having an electron attaching gas wherein electron attachment is brought about by indirect excitation of molecules to long live states by exposure to laser light. 3 figs.

  13. Contact ORP - Hanford Site

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

    Contact ORP Office of River Protection About ORP ORP Projects & Facilities Newsroom Contracts & Procurements Contact ORP Contact ORP Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size Do you have a question? Contact the Office of River Protection DOE Logo Street Address: DOE ORP 2440 Stevens Center Place, H660 Richland, WA, 99354 Mailing Address: DOE ORP PO Box 450 Richland, WA 99352 Phone Contact: Hanford Site Operator 509-376-7411 ORP Office of

  14. A radiation hard vacuum switch

    DOE Patents [OSTI]

    Boettcher, G.E.

    1988-07-19

    A vacuum switch with an isolated trigger probe which is not directly connected to the switching electrodes. The vacuum switch within the plasmatron is triggered by plasma expansion initiated by the trigger probe which travels through an opening to reach the vacuum switch elements. The plasma arc created is directed by the opening to the space between the anode and cathode of the vacuum switch to cause conduction. 3 figs.

  15. Thermionic gas switch

    DOE Patents [OSTI]

    Hatch, G.L.; Brummond, W.A.; Barrus, D.M.

    1984-04-05

    The present invention is directed to an improved temperature responsive thermionic gas switch utilizing a hollow cathode and a folded emitter surface area. The folded emitter surface area of the thermionic switch substantially increases the on/off ratio by changing the conduction surface area involved in the two modes thereof. The improved switch of this invention provides an on/off ratio of 450:1 compared to the 10:1 ratio of the prior known thermionic switch, while providing for adjusting the on current. In the improved switch of this invention the conduction area is made small in the off mode, while in the on mode the conduction area is made large. This is achieved by utilizing a folded hollow cathode configuration and utilizing a folded emitter surface area, and by making the dimensions of the folds small enough so that a space charge will develop in the convolutions of the folds and suppress unignited current, thus limiting the current carrying surface in the off mode.

  16. Switching power pulse system

    DOE Patents [OSTI]

    Aaland, K.

    1983-08-09

    A switching system for delivering pulses of power from a source to a load using a storage capacitor charged through a rectifier, and maintained charged to a reference voltage level by a transistor switch and voltage comparator. A thyristor is triggered to discharge the storage capacitor through a saturable reactor and fractional turn saturable transformer having a secondary to primary turn ratio N of n:l/n = n[sup 2]. The saturable reactor functions as a soaker'' while the thyristor reaches saturation, and then switches to a low impedance state. The saturable transformer functions as a switching transformer with high impedance while a load coupling capacitor charges, and then switches to a low impedance state to dump the charge of the storage capacitor into the load through the coupling capacitor. The transformer is comprised of a multilayer core having two secondary windings tightly wound and connected in parallel to add their output voltage and reduce output inductance, and a number of single turn windings connected in parallel at nodes for the primary winding, each single turn winding linking a different one of the layers of the multilayer core. The load may be comprised of a resistive beampipe for a linear particle accelerator and capacitance of a pulse forming network. To hold off discharge of the capacitance until it is fully charged, a saturable core is provided around the resistive beampipe to isolate the beampipe from the capacitance until it is fully charged. 5 figs.

  17. Contact Us - Pantex Plant

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

    Contact Us Contact Us Page Content Pantex Phone Numbers Main Phone Number (806) 477-3000 Press 3 for personnel directory. Toll-Free 1 (877) 843-3455 Accounts Payable (806) 477-6930...

  18. NETL Contact Information

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

    NETL Contact Information Contact U.S. Department of Energy National Energy Technology Laboratory PITTSBURGH, PA 626 Cochrans Mill Road P.O. Box 10940 Pittsburgh, PA 15236-0940...

  19. Contact Us | Geothermal

    Office of Scientific and Technical Information (OSTI)

    Email geothermalcomments@osti.gov Contact us by phone Phone Phone 865-241-6435 Contact us in writing Mail U.S. Department of Energy Office of Scientific and Technical Information ...

  20. Contact Us | DOEpatents

    Office of Scientific and Technical Information (OSTI)

    We do our best to respond within 48 hours. Contact us by phone Phone Phone (865) 576-1333 Contact us in writing Mail U.S. Department of Energy Office of Scientific and Technical ...

  1. Switching power supply

    DOE Patents [OSTI]

    Mihalka, A.M.

    1984-06-05

    The invention is a repratable capacitor charging, switching power supply. A ferrite transformer steps up a dc input. The transformer primary is in a full bridge configuration utilizing power MOSFETs as the bridge switches. The transformer secondary is fed into a high voltage, full wave rectifier whose output is connected directly to the energy storage capacitor. The transformer is designed to provide adequate leakage inductance to limit capacitor current. The MOSFETs are switched to the variable frequency from 20 to 50 kHz to charge a capacitor from 0.6 kV. The peak current in a transformer primary and secondary is controlled by increasing the pulse width as the capacitor charges. A digital ripple counter counts pulses and after a preselected desired number is reached an up-counter is clocked.

  2. Microfabricated triggered vacuum switch

    DOE Patents [OSTI]

    Roesler, Alexander W. (Tijeras, NM); Schare, Joshua M. (Albuquerque, NM); Bunch, Kyle (Albuquerque, NM)

    2010-05-11

    A microfabricated vacuum switch is disclosed which includes a substrate upon which an anode, cathode and trigger electrode are located. A cover is sealed over the substrate under vacuum to complete the vacuum switch. In some embodiments of the present invention, a metal cover can be used in place of the trigger electrode on the substrate. Materials used for the vacuum switch are compatible with high vacuum, relatively high temperature processing. These materials include molybdenum, niobium, copper, tungsten, aluminum and alloys thereof for the anode and cathode. Carbon in the form of graphitic carbon, a diamond-like material, or carbon nanotubes can be used in the trigger electrode. Channels can be optionally formed in the substrate to mitigate against surface breakdown.

  3. ARM - SGP Contacts

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

    Contacts SGP Related Links Virtual Tour Facilities and Instruments Central Facility Boundary Facility Extended Facility Intermediate Facility Radiometric Calibration Facility Geographic Information ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site SGP Fact Sheet Images Information for Guest Scientists Contacts SGP Contacts Site Manager - Nicki Hickmon, Argonne National Laboratory Site Operations Manager - John Schatz, SGP Site Operations Office Central Facility

  4. Contacts | Department of Energy

    Office of Environmental Management (EM)

    Contacts Contacts For information about Solid-State Lighting, contact James Brodrick Lighting Program Manager Building Technologies Office U.S. Department of Energy 1000 Independence Avenue, SW Washington, DC 20585 1-202-586-5000 Solid-State Lighting Home About the Solid-State Lighting Program Research & Development SSL Basics Using LEDs

  5. Contact Us - Hanford Site

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

    Contact Us About Us About Hanford Cleanup Hanford History Hanford Site Wide Programs Contact Us Contact Us Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size Contact Us Do you have a question? Contact Hanford DOE Logo Street Address: Federal Bldg: 825 Jadwin Ave., Suite 1 Richland, WA 99352 Map Mailing Address: DOE RL PO Box 550 Richland, WA 99352 Street Address: DOE ORP 2440 Stevens Center Place, H660 Richland, WA, 99354 Mailing Address: DOE ORP PO Box 450 Richland,

  6. Switching power pulse system

    DOE Patents [OSTI]

    Aaland, Kristian

    1983-01-01

    A switching system for delivering pulses of power from a source (10) to a load (20) using a storage capacitor (C3) charged through a rectifier (D1, D2), and maintained charged to a reference voltage level by a transistor switch (Q1) and voltage comparator (12). A thyristor (22) is triggered to discharge the storage capacitor through a saturable reactor (18) and fractional turn saturable transformer (16) having a secondary to primary turn ratio N of n:l/n=n.sup.2. The saturable reactor (18) functions as a "soaker" while the thyristor reaches saturation, and then switches to a low impedance state. The saturable transformer functions as a switching transformer with high impedance while a load coupling capacitor (C4) charges, and then switches to a low impedance state to dump the charge of the storage capacitor (C3) into the load through the coupling capacitor (C4). The transformer is comprised of a multilayer core (26) having two secondary windings (28, 30) tightly wound and connected in parallel to add their output voltage and reduce output inductance, and a number of single turn windings connected in parallel at nodes (32, 34) for the primary winding, each single turn winding linking a different one of the layers of the multilayer core. The load may be comprised of a resistive beampipe (40) for a linear particle accelerator and capacitance of a pulse forming network (42). To hold off discharge of the capacitance until it is fully charged, a saturable core (44) is provided around the resistive beampipe (40) to isolate the beampipe from the capacitance (42) until it is fully charged.

  7. Transparent electrode for optical switch

    DOE Patents [OSTI]

    Goldhar, J.; Henesian, M.A.

    1984-10-19

    The invention relates generally to optical switches and techniques for applying a voltage to an electro-optical crystal, and more particularly, to transparent electodes for an optical switch. System architectures for very large inertial confinement fusion (ICF) lasers require active optical elements with apertures on the order of one meter. Large aperture optical switches are needed for isolation of stages, switch-out from regenerative amplifier cavities and protection from target retroreflections.

  8. Contact Us | Department of Energy

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

    Us » Contact Us Contact Us Student and Recent Graduate Contacts List of recruiter liaisons for student and other employment opportunities. Veteran's Contacts Lists veteran employment contacts by location and DOE organization. Disability Employment POCs Lists disability employment contact information by location. Reasonable Accommodation POCs Lists reasonable accommodation contacts by location.

  9. Contact | Photosynthetic Antenna Research Center

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

    Contact Contact For general inquiries, please contact the administrative core at parc-efrc@wustl.edu. Manager, Research Administration and Operations Kaslina Love Mosley...

  10. Points of Contact - Hanford Site

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

    Points of Contact About Us Hanford Site Solid Waste Acceptance Program What's New Acceptance Criteria Acceptance Process Tools Points of Contact Points of Contact Email Email Page...

  11. ORISE: Contact Environment, Safety & Health

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    Star Status Environment Work Smart Standards Oak Ridge Institute for Science Education Contact Us Use the form below to contact Environment, Safety & Health. Other contact...

  12. Provider Contact Information

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    Benefit Options » Provider Contact Information Provider Contact Information A comprehensive benefits package with plan options for health care and retirement to take care of our employees today and tomorrow. Contacts Benefits Office (505) 667-1806 Email Medical, mental health Blue Cross Blue Shield of New Mexico (BCBSNM) Group Number HDHP (113794) PPO (N13794) Website BCBSNM for LANL Member Services 877-878-5265 Claims Address P.O. Box 27630 Albuquerque, NM 87125-7630 Claims Resolution On-site

  13. Insurance Provider Contacts

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    Provider Contacts Retiree Insurance Provider Contacts Employees and retirees are the building blocks of LANL's success. Our employees get to contribute to the most pressing issues facing the nation.Retiree health and welfare benefits are managed by AonHewitt and Associates. Contact information for retiree providers LANS Pension Administrator - Hewitt AonHewitt & Associates Website Your Pension Resources (YPR) Member Services (866) 370-7301 Retiree Benefits Administrator - Empyrean Empyrean

  14. Contacts / Hours - Hanford Site

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    Contacts / Hours Hanford Meteorological Station Real Time Met Data from Around the Site Current and Past 48 Hours HMS Observations Daily HMS Extremes in Met Data Met and Climate Data Summary Products Contacts / Hours Current NWS Forecast for the Tri-Cities NWS Windchill Chart Contacts / Hours Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size Note: Using the telephone is the ONLY way to get up to the minute information. On duty Forecaster (509) 373-2716 Current

  15. Media Contacts - Hanford Site

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    Media Contacts Newsroom Press Releases Media Contacts Photo Gallery The Hanford Story Hanford Blog Hanford YouTube Channel Media Contacts Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size Richland Operations Office Office of River Protection River Corridor cleanup Reactor/facility cleanout and demolition Solid waste burial ground cleanup Groundwater remediation Central Plateau cleanup Waste Treatment (Vitrification) Plant construction Underground tank waste storage

  16. ARM - ENA Contacts

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

    AtlanticENA Contacts ENA Related Links Facilities and Instruments ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site ENA Fact Sheet (PDF, 512KB) Images Information for Guest Scientists Contacts ENA Contacts Site Oversight - Kim Nitschke, Los Alamos National Laboratory Site Manager - Paul Ortega, Los Alamos National Laboratory Eastern North Atlantic Office Mailing Address: Los Alamos National Laboratory PO Box 1663, MS J577 Los Alamos, NM 87545 U.S.A. Shipping

  17. ARM - NSA Contacts

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

    Contacts NSA Related Links Virtual Tour Facilities and Instruments Barrow Atqasuk Oliktok Point (AMF3) ES&H Guidance Statement Operations Science Field Campaigns Visiting the Site NSA Fact Sheet Images Information for Guest Scientists Contacts NSA Contacts Site Manager - Mark Ivey, Sandia National Laboratories Barrow Site Manager - Dan Lucero, Sandia National Laboratories Barrow Site Facilities Manager - Walter Brower, UIC Science, LLC, Cell: 907.878.4780 Rapid Response Team Manager - Martin

  18. Contact Us - JCAP

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

    ©bobpaz.com0083.JPG Contact Us Connect With JCAP Contact Us Partnerships For Researchers Partnerships For Industry Visit JCAP Connect with JCAP Contact Us Partnerships For Researchers Partnerships For Industry Visit JCAP jcap @ Caltech Join Center for Artificial Photosynthesis California Institute of Technology Jorgensen Laboratory, Mail Code 132-80 1200 East California Boulevard Pasadena, CA 91125 Phone: (626) 395-1570 JCAP @ lbnl Joint Center for Artificial Photosynthesis Lawrence Berkley

  19. ARM - Instrument Contacts

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

    govInstrumentsContacts Comments? We would love to hear from you! Send us a note below or call us at 1-888-ARM-DATA. Send Instrument Contacts (Mentors) Instrument Name Abbreviation Contact Phone Absolute Solar Transmittance Interferometer ASTI Douglas Sisterson Argonne National Laboratory 630.252.5836 Aerosol Chemical Speciation Monitor ACSM Stephen Springston Brookhaven National Laboratory 631.344.4477 Thomas Watson Brookhaven National Laboratory 631.344.4517 Bill Behrens Brookhaven National

  20. High gain photoconductive semiconductor switch having tailored doping profile zones

    DOE Patents [OSTI]

    Baca, Albert G. (Albuquerque, NM); Loubriel, Guillermo M. (Albuquerque, NM); Mar, Alan (Albuquerque, NM); Zutavern, Fred J (Albuquerque, NM); Hjalmarson, Harold P. (Albuquerque, NM); Allerman, Andrew A. (Albuquerque, NM); Zipperian, Thomas E. (Edgewood, NM); O'Malley, Martin W. (Edgewood, NM); Helgeson, Wesley D. (Albuquerque, NM); Denison, Gary J. (Sandia Park, NM); Brown, Darwin J. (Albuquerque, NM); Sullivan, Charles T. (Albuquerque, NM); Hou, Hong Q. (Albuquerque, NM)

    2001-01-01

    A photoconductive semiconductor switch with tailored doping profile zones beneath and extending laterally from the electrical contacts to the device. The zones are of sufficient depth and lateral extent to isolate the contacts from damage caused by the high current filaments that are created in the device when it is turned on. The zones may be formed by etching depressions into the substrate, then conducting epitaxial regrowth in the depressions with material of the desired doping profile. They may be formed by surface epitaxy. They may also be formed by deep diffusion processes. The zones act to reduce the energy density at the contacts by suppressing collective impact ionization and formation of filaments near the contact and by reducing current intensity at the contact through enhanced current spreading within the zones.

  1. CAES Contact Information

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

    View all events >> x CAES Home Home About Us Contact Information Our CAES Building FAQs Affiliated Centers Research Core Capabilities Laboratories and Equipment Technology Transfer...

  2. Optical contact micrometer

    DOE Patents [OSTI]

    Jacobson, Steven D.

    2014-08-19

    Certain examples provide optical contact micrometers and methods of use. An example optical contact micrometer includes a pair of opposable lenses to receive an object and immobilize the object in a position. The example optical contact micrometer includes a pair of opposable mirrors positioned with respect to the pair of lenses to facilitate viewing of the object through the lenses. The example optical contact micrometer includes a microscope to facilitate viewing of the object through the lenses via the mirrors; and an interferometer to obtain one or more measurements of the object.

  3. ARM - AMF Contacts

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

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF Contacts Science AMF1 Site Scientist - Mark Miller, Rutgers...

  4. ContaCt

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

    information about the LANSCE user program, contact lansce-user-office@lanl.gov. Kurt Schoenberg LANSCE User Facility Director LanSCE User office lansce.lanl.gov...

  5. ARM - TWP Contacts

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

    Contacts TWP Related Links Facilities and Instruments Manus Island Nauru Island Darwin, AUS ES&H Guidance Statement Operations Science Field Campaigns Year of Tropical Convection...

  6. Plasma opening switch

    DOE Patents [OSTI]

    Savage, Mark E. (Albuquerque, NM); Mendel, Jr., Clifford W. (Albuquerque, NM)

    2001-01-01

    A command triggered plasma opening switch assembly using an amplification stage. The assembly surrounds a coaxial transmission line and has a main plasma opening switch (POS) close to the load and a trigger POS upstream from the main POS. The trigger POS establishes two different current pathways through the assembly depended on whether it has received a trigger current pulse. The initial pathway has both POS's with plasma between their anodes and cathodes to form a short across the transmission line and isolating the load. The final current pathway is formed when the trigger POS receives a trigger current pulse which energizes its fast coil to push the conductive plasma out from between its anode and cathode, allowing the main transmission line current to pass to the fast coil of the main POS, thus pushing its plasma out the way so as to establish a direct current pathway to the load.

  7. Optical fiber switch

    DOE Patents [OSTI]

    Early, James W. (Los Alamos, NM); Lester, Charles S. (San Juan Pueblo, NM)

    2002-01-01

    Optical fiber switches operated by electrical activation of at least one laser light modulator through which laser light is directed into at least one polarizer are used for the sequential transport of laser light from a single laser into a plurality of optical fibers. In one embodiment of the invention, laser light from a single excitation laser is sequentially transported to a plurality of optical fibers which in turn transport the laser light to separate individual remotely located laser fuel ignitors. The invention can be operated electro-optically with no need for any mechanical or moving parts, or, alternatively, can be operated electro-mechanically. The invention can be used to switch either pulsed or continuous wave laser light.

  8. CREE: Making the Switch

    SciTech Connect (OSTI)

    Grider, David; Palmer, John

    2014-03-06

    CREE, with the help of ARPA-E funding, has developed a Silicon Carbide (SIC) transistor which can be used to create solid state transformers capable of meeting the unique needs of the emerging smart grid. SIC transistors are different from common silicon computer chips in that they handle grid scale voltages with ease and their high frequency switching is well suited to the intermittent nature of renewable energy generation.

  9. CREE: Making the Switch

    ScienceCinema (OSTI)

    Grider, David; Palmer, John

    2014-04-09

    CREE, with the help of ARPA-E funding, has developed a Silicon Carbide (SIC) transistor which can be used to create solid state transformers capable of meeting the unique needs of the emerging smart grid. SIC transistors are different from common silicon computer chips in that they handle grid scale voltages with ease and their high frequency switching is well suited to the intermittent nature of renewable energy generation.

  10. Electronic devices containing switchably conductive silicon oxides as a switching element and methods for production and use thereof

    DOE Patents [OSTI]

    Tour, James M.; Yao, Jun; Natelson, Douglas; Zhong, Lin; He, Tao

    2015-09-08

    In various embodiments, electronic devices containing switchably conductive silicon oxide as a switching element are described herein. The electronic devices are two-terminal devices containing a first electrical contact and a second electrical contact in which at least one of the first electrical contact or the second electrical contact is deposed on a substrate to define a gap region therebetween. A switching layer containing a switchably conductive silicon oxide resides in the gap region between the first electrical contact and the second electrical contact. The electronic devices exhibit hysteretic current versus voltage properties, enabling their use in switching and memory applications. Methods for configuring, operating and constructing the electronic devices are also presented herein.

  11. Electronic devices containing switchably conductive silicon oxides as a switching element and methods for production and use thereof

    DOE Patents [OSTI]

    Tour, James M; Yao, Jun; Natelson, Douglas; Zhong, Lin; He, Tao

    2013-11-26

    In various embodiments, electronic devices containing switchably conductive silicon oxide as a switching element are described herein. The electronic devices are two-terminal devices containing a first electrical contact and a second electrical contact in which at least one of the first electrical contact or the second electrical contact is deposed on a substrate to define a gap region therebetween. A switching layer containing a switchably conductive silicon oxide resides in the the gap region between the first electical contact and the second electrical contact. The electronic devices exhibit hysteretic current versus voltage properties, enabling their use in switching and memory applications. Methods for configuring, operating and constructing the electronic devices are also presented herein.

  12. Compound semiconductor optical waveguide switch

    DOE Patents [OSTI]

    Spahn, Olga B.; Sullivan, Charles T.; Garcia, Ernest J.

    2003-06-10

    An optical waveguide switch is disclosed which is formed from III-V compound semiconductors and which has a moveable optical waveguide with a cantilevered portion that can be bent laterally by an integral electrostatic actuator to route an optical signal (i.e. light) between the moveable optical waveguide and one of a plurality of fixed optical waveguides. A plurality of optical waveguide switches can be formed on a common substrate and interconnected to form an optical switching network.

  13. Alternative Fuels Data Center: Contacts

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    About Printable Version Share this resource Send a link to Alternative Fuels Data Center: Contacts to someone by E-mail Share Alternative Fuels Data Center: Contacts on Facebook Tweet about Alternative Fuels Data Center: Contacts on Twitter Bookmark Alternative Fuels Data Center: Contacts on Google Bookmark Alternative Fuels Data Center: Contacts on Delicious Rank Alternative Fuels Data Center: Contacts on Digg Find More places to share Alternative Fuels Data Center: Contacts on AddThis.com...

  14. Contacts | Advanced Photon Source

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

    (on-call pager) From on-site phone: 2-0101 General Inquiries & Media Contact Rick Fenner fenner@aps.anl.gov 630-252-5280 Important Numbers Off-hour access: 630-252-0101 Safety...

  15. Clean Cities Program Contacts

    SciTech Connect (OSTI)

    2015-07-31

    Contact information for the U.S. Department of Energy's Clean Cities program staff and for the coordinators of the nearly 100 local Clean Cities coalitions across the country.

  16. Contacts | Argonne National Laboratory

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

    1-630-252-XXXX: Postdoc Program Point of Contact: Kristene (Tina) Henne 2-2907 Argonne Ethics and Compliance Line 1-877-587-2449 Argonne Information Center Site Access 2-5755...

  17. Contacts | Department of Energy

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

    information to contact the State and Local Solution Center by mail or email: U.S. Department of Energy State and Local Solution Center Mail Stop EE-5W 1000 Independence Ave., SW...

  18. ARM - Contact Information

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

    Contact Information Related Links TWP-ICE Home Tropical Western Pacific Home ARM Data Discovery Browse Data Post-Experiment Data Sets Weather Summary (pdf, 6M) New York Workshop...

  19. Contact - Cyclotron Institute

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

    Contact Website Manager Bruce Hyman Email: hyman@comp.tamu.edu Mailing Address Cyclotron Institute Texas A&M University 3366 TAMU College Station, TX, 77843-3366 Campus Location...

  20. Sensor Switch's Bright Manufacturing Future

    Broader source: Energy.gov [DOE]

    The switch helps with cost effective energy savings by turning off the lights when an occupancy sensor says the room is empty.

  1. Switch LLC | Open Energy Information

    Open Energy Info (EERE)

    Maryland Zip: 20886 Sector: Solar Product: Installer and distributor of small-scale solar passive, PV, fuel cell, and other distributed energy systems. References: Switch...

  2. Data center coolant switch

    DOE Patents [OSTI]

    Iyengar, Madhusudan K.; Parida, Pritish R.; Schultz, Mark D.

    2015-10-06

    A data center cooling system is operated in a first mode; it has an indoor portion wherein heat is absorbed from components in the data center, and an outdoor heat exchanger portion wherein outside air is used to cool a first heat transfer fluid (e.g., water) present in at least the outdoor heat exchanger portion of the cooling system during the first mode. The first heat transfer fluid is a relatively high performance heat transfer fluid (as compared to the second fluid), and has a first heat transfer fluid freezing point. A determination is made that an appropriate time has been reached to switch from the first mode to a second mode. Based on this determination, the outdoor heat exchanger portion of the data cooling system is switched to a second heat transfer fluid, which is a relatively low performance heat transfer fluid, as compared to the first heat transfer fluid. It has a second heat transfer fluid freezing point lower than the first heat transfer fluid freezing point, and the second heat transfer fluid freezing point is sufficiently low to operate without freezing when the outdoor air temperature drops below a first predetermined relationship with the first heat transfer fluid freezing point.

  3. 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

  4. Jefferson Lab Contacts

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

    Contact Us Privacy and Security Notice Skip over navigation Search the JLab Site Search Please upgrade your browser. This site's design is only visible in a graphical browser that supports web standards, but its content is accessible to any browser. Concerns? Jefferson Lab Navigation Home Search News Insight print version Jefferson Lab 12000 Jefferson Avenue Newport News, VA 23606 Phone: (757) 269-7100 Fax: (757) 269-7363 Contact Jefferson Lab Jefferson Lab's service departments and divisional

  5. Contacts & Resources

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

    Contacts & Resources Contacts & Resources Environmental Communication & Public Involvement P.O. Box 1663 MS M996 Los Alamos, NM 87545 (505) 667-0216 envoutreach@lanl.gov Public Information LANL environmental website Public meetings and tours Mailing and emailing lists Public notification in local newspapers Events calendar Intellus database Information repositories Resources Illustrated Long-Term Strategy for Environmental Stewardship and Sustainability (pdf) Annual Sitewide

  6. Contacts | Department of Energy

    Office of Environmental Management (EM)

    Contacts Contacts U.S. Department of Energy SunShot Initiative Phone: 202-287-1862 Email: solar@ee.doe.gov Mailing Address: 1000 Independence Avenue, SW Washington, DC, 20585 Additional information about visiting our offices. EPA Green Power Partnership Phone: 202-343-9859 Email: James Critchfield, GPP Program Manager critchfield.james@epa.gov Mailing address: U.S. Environmental Protection Agency 1200 Pennsylvania Ave., NW Mail Code 6202J Washington, DC 20460

  7. Advanced Soft Switching Inverter for Reducing Switching and Power Losses

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

    Advanced Soft Switching Inverter for Reducing Switching and Power Losses Jason Lai Virginia Polytechnic Institute and State University June 10, 2010 This presentation does not contain any proprietary, confidential, or otherwise restricted information Project ID: APE011 2 Outline * Overview * Objectives * Milestones * Approaches * Accomplishments * Future Work * Summary 3 Overview * Start - Sep 2007 * Finish - Sep 2010 * 75% Complete * Barriers addressed - Inverter Cost - Inverter Weight and

  8. Hybrid switch for resonant power converters

    DOE Patents [OSTI]

    Lai, Jih-Sheng; Yu, Wensong

    2014-09-09

    A hybrid switch comprising two semiconductor switches connected in parallel but having different voltage drop characteristics as a function of current facilitates attainment of zero voltage switching and reduces conduction losses to complement reduction of switching losses achieved through zero voltage switching in power converters such as high-current inverters.

  9. Electrochromic optical switching device

    DOE Patents [OSTI]

    Lampert, C.M.; Visco, S.J.

    1992-08-25

    An electrochromic cell is disclosed which comprises an electrochromic layer, a polymerizable organo-sulfur layer which comprises the counter electrode of the structure, and an ionically conductive electronically insulating material which comprises the separator between the electrodes. In a preferred embodiment, both the separator and the organo-sulfur electrode (in both its charged and uncharged states) are transparent either to visible light or to the entire solar spectrum. An electrochromic device is disclosed which comprises such electrodes and separator encased in glass plates on the inner surface of each of which is formed a transparent electrically conductive film in respective electrical contact with the electrodes which facilitates formation of an external electrical connection or contact to the electrodes of the device to permit electrical connection of the device to an external potential source. 3 figs.

  10. Electrochromic optical switching device

    DOE Patents [OSTI]

    Lampert, Carl M. (El Sobrante, CA); Visco, Steven J. (Berkeley, CA)

    1992-01-01

    An electrochromic cell is disclosed which comprises an electrochromic layer, a polymerizable organo-sulfur layer which comprises the counter electrode of the structure, and an ionically conductive electronically insulating material which comprises the separator between the electrodes. In a preferred embodiment, both the separator and the organo-sulfur electrode (in both its charged and uncharged states) are transparent either to visible light or to the entire solar spectrum. An electrochromic device is disclosed which comprises such electrodes and separator encased in glass plates on the inner surface of each of which is formed a transparent electrically conductive film in respective electrical contact with the electrodes which facilitates formation of an external electrical connection or contact to the electrodes of the device to permit electrical connection of the device to an external potential source.

  11. Battery switch for downhole tools

    DOE Patents [OSTI]

    Boling, Brian E. (Sugar Land, TX)

    2010-02-23

    An electrical circuit for a downhole tool may include a battery, a load electrically connected to the battery, and at least one switch electrically connected in series with the battery and to the load. The at least one switch may be configured to close when a tool temperature exceeds a selected temperature.

  12. ''Smart'' watchdog safety switch

    DOE Patents [OSTI]

    Kronberg, J.W.

    1991-10-01

    A method and apparatus for monitoring a process having a periodic output so that the process equipment is not damaged in the event of a controller failure, comprising a low-pass and peak clipping filter, an event detector that generates an event pulse for each valid change in magnitude of the filtered periodic output, a timing pulse generator, a counter that increments upon receipt of any timing pulse and resets to zero on receipt of any event pulse, an alarm that alerts when the count reaches some preselected total count, and a set of relays that opens to stop power to process equipment. An interface module can be added to allow the switch to accept a variety of periodic output signals. 21 figures.

  13. High voltage coaxial switch

    DOE Patents [OSTI]

    Rink, J.P.

    1983-07-19

    A coaxial high voltage, high current switch having a solid cylindrical cold cathode coaxially surrounded by a thin hollow cylindrical inner electrode and a larger hollow cylindrical outer electrode. A high voltage trigger between the cathode and the inner electrode causes electrons to be emitted from the cathode and flow to the inner electrode preferably through a vacuum. Some of the electrons penetrate the inner electrode and cause a volumetric discharge in the gas (which may be merely air) between the inner and outer electrodes. The discharge provides a low impedance path between a high voltage charge placed on the outer electrode and a load (which may be a high power laser) coupled to the inner electrode. For high repetition rate the gas between the inner and outer electrodes may be continuously exchanged or refreshed under pressure. 3 figs.

  14. Optimized scalable network switch

    DOE Patents [OSTI]

    Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton On Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY); Gara, Alan G. (Mount Kisco, NY); Giampapa, Mark E. (Irvington, NY); Heidelberger, Philip (Cortlandt Manor, NY); Steinmacher-Burow, Burkhard D. (Mount Kisco, NY); Takken, Todd E. (Mount Kisco, NY); Vranas, Pavlos M. (Bedford Hills, NY)

    2007-12-04

    In a massively parallel computing system having a plurality of nodes configured in m multi-dimensions, each node including a computing device, a method for routing packets towards their destination nodes is provided which includes generating at least one of a 2m plurality of compact bit vectors containing information derived from downstream nodes. A multilevel arbitration process in which downstream information stored in the compact vectors, such as link status information and fullness of downstream buffers, is used to determine a preferred direction and virtual channel for packet transmission. Preferred direction ranges are encoded and virtual channels are selected by examining the plurality of compact bit vectors. This dynamic routing method eliminates the necessity of routing tables, thus enhancing scalability of the switch.

  15. "Smart" watchdog safety switch

    DOE Patents [OSTI]

    Kronberg, James W. (353 Church Rd., Beech Island, SC 29842)

    1991-01-01

    A method and apparatus for monitoring a process having a periodic output so that the process equipment is not damaged in the event of a controller failure, comprising a low-pass and peak clipping filter, an event detector that generates an event pulse for each valid change in magnitude of the filtered periodic output, a timing pulse generator, a counter that increments upon receipt of any timing pulse and resets to zero on receipt of any event pulse, an alarm that alerts when the count reaches some preselected total count, and a set of relays that opens to stop power to process equipment. An interface module can be added to allow the switch to accept a variety of periodic output signals.

  16. Optimized scalable network switch

    DOE Patents [OSTI]

    Blumrich, Matthias A. (Ridgefield, CT); Chen, Dong (Croton on Hudson, NY); Coteus, Paul W. (Yorktown Heights, NY)

    2010-02-23

    In a massively parallel computing system having a plurality of nodes configured in m multi-dimensions, each node including a computing device, a method for routing packets towards their destination nodes is provided which includes generating at least one of a 2m plurality of compact bit vectors containing information derived from downstream nodes. A multilevel arbitration process in which downstream information stored in the compact vectors, such as link status information and fullness of downstream buffers, is used to determine a preferred direction and virtual channel for packet transmission. Preferred direction ranges are encoded and virtual channels are selected by examining the plurality of compact bit vectors. This dynamic routing method eliminates the necessity of routing tables, thus enhancing scalability of the switch.

  17. High voltage coaxial switch

    DOE Patents [OSTI]

    Rink, John P. (Los Alamos, NM)

    1983-07-19

    A coaxial high voltage, high current switch having a solid cylindrical cold cathode coaxially surrounded by a thin hollow cylindrical inner electrode and a larger hollow cylindrical outer electrode. A high voltage trigger between the cathode and the inner electrode causes electrons to be emitted from the cathode and flow to the inner electrode preferably through a vacuum. Some of the electrons penetrate the inner electrode and cause a volumetric discharge in the gas (which may be merely air) between the inner and outer electrodes. The discharge provides a low impedance path between a high voltage charge placed on the outer electrode and a load (which may be a high power laser) coupled to the inner electrode. For high repetition rate the gas between the inner and outer electrodes may be continuously exchanged or refreshed under pressure.

  18. DOE Media Contact: Jim Giusti, ...

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

    Media Contact: Jim Giusti, (803) 952-7684, james-r.giusti@srs.gov EPA Media Contact: James Pinkney, (404) 562-9183, pinkney.james@epa.gov SCDHEC Media Contact: Jim Beasley, (803)...

  19. Contact Us | ScienceCinema

    Office of Scientific and Technical Information (OSTI)

    If you have videos to contribute, please contact us for more information. Contact us by email Email Contact us in writing Mail U.S. Department of Energy Office of Scientific and ...

  20. Contact Us | Department of Energy

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

    Contact Us Contact Us Contact the Office of the General Counsel The Office of the General Counsel welcomes your comments and questions. A complete listing of contact information for attorneys and staff in the Headquarters Offices of the General Counsel is listed below. For Field Counsel contact information, please click here. Index of Contacts for Headquarters Offices Office of the General Counsel (GC-1) Office of the Deputy General Counsel for Litigation, Regulation and Enforcement (GC-30)

  1. Contact Us | Department of Energy

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

    Us » Contact Us Contact Us To contact us by mail: Office of the Chief Human Capital Officer U.S. Department of Energy, Room 4E-084 1000 Independence Ave, SW Washington, DC 20585 By Phone: 202-586-1234 HC Points of Contact HR Contacts by Sub Agency Servicing Area HC Contacts by Functional Area Human Resource Directors (HRD) Secretarial Offices and Management & Performance

  2. NERSC Helps Researchers Discover a Potential On-Off Switch for

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

    Nanoelectronics Researchers Discover a Potential On-Off Switch for Nanoelectronics NERSC Helps Researchers Discover a Potential On-Off Switch for Nanoelectronics December 22, 2009 Researchers at the Lawrence Berkeley National Laboratory's (Berkeley Lab) Molecular Foundry and Columbia University found that electrical resistance through a molecular junction-a nanometer scale circuit element consisting of a single molecule contacted with gold wires-can be turned on and off by simply pushing and

  3. contact | netl.doe.gov

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

    Contact NETL Technology Transfer Group For any inquiries regarding technology transfer, please email techtransfer@netl.doe.gov or contact: Jessica Sosenko Technology Transfer...

  4. Contact EPSCI | The Ames Laboratory

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

    Contact EPSCI The EPSCI program is directed by Dr. David P. Baldwin. Please contact him with any questions regarding the EPSCI program. David P. Baldwin, Director Phone: (515)...

  5. Contact Us | Department of Energy

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

    Contact Us Contact Us Christopher Clark Deschene, Director Main phone: (202) 586-1272 Email: IndianEnergy@hq.doe.gov

  6. Safety Staff Contact Information

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

    Safety Staff Contact Information Print Contact Extension Location CONTROL ROOM (24/7) 4969 80-140 Floor Operations Floor Operators 7464 (RING) 80-159 Building Manager Jeff Troutman 7358 80-151 Building Emergency Team (BET) This e-mail address is being protected from spambots. You need JavaScript enabled to view it (Leader) Karen Nunez (Deputy) 8658 6535 7-210H 80-160 Work Planning, Facility Specialists This e-mail address is being protected from spambots. You need JavaScript enabled to view it

  7. Soft Switching Technologies | Open Energy Information

    Open Energy Info (EERE)

    Soft Switching Technologies Jump to: navigation, search Name: Soft Switching Technologies Place: Wisconsin Product: Supplier of power quality solutions for delivery of highly...

  8. Emerging Resistive Switching Memory Technologies: Overview and...

    Office of Scientific and Technical Information (OSTI)

    Emerging Resistive Switching Memory Technologies: Overview and Current Status. Citation Details In-Document Search Title: Emerging Resistive Switching Memory Technologies: Overview ...

  9. Dielectric liquid pulsed-power switch

    DOE Patents [OSTI]

    Christophorou, Loucas G. (Oak Ridge, TN); Faidas, Homer (Knoxville, TN)

    1990-01-01

    This disclosure identifies dielectric liquids for use as opening and closing switching media in pulsed power technology, and describes a dielectric-liquid-pulsed-power switch empolying flashlamps.

  10. Control of normal and abnormal bipolar resistive switching by interface junction on In/Nb:SrTiO{sub 3} interface

    SciTech Connect (OSTI)

    Sun, J.; Jia, C. H.; Li, G. Q.; Zhang, W. F.

    2012-09-24

    The resistive switching behaviors of indium (In)/Nb:SrTiO{sub 3} (NSTO) with different metal/semiconductor contacts are investigated. The In electrodes with the Schottky contacts are fabricated on NSTO surface using direct current reactive magnetron sputtering, and the fresh In is directly pressed to form the Ohmic contact. The device with one Schottky barrier displays a normal bipolar resistive switching (BRS) behavior, while the device with two Schottky barriers shows an abnormal BRS behavior. The results demonstrate that the injection and trapping or detrapping of carriers near the interface between the metal electrode and semiconductor are closely related to the resistive switching performance.

  11. Alarm toe switch. [Patent application

    DOE Patents [OSTI]

    Ganyard, F.P.

    1980-11-18

    An alarm toe switch inserted within a shoe for energizing an alarm circuit in a covert manner includes an insole mounting pad into which a miniature reed switch is fixedly molded. An elongated slot perpendicular to the reed switch is formed in the bottom surface of the mounting pad. A permanent cylindrical magnet positioned in the forward portion of the slot with a diameter greater than the pad thickness causes a bump above the pad. A foam rubber block is also positioned in the slot rearwardly of the magnet and holds the magnet in normal inoperative relation. A non-magnetic support plate covers the slot and holds the magnet and foam rubber in the slot. The plate minimizes bending and frictional forces to improve movement of the magnet for reliable switch activation. The bump occupies the knuckle space beneath the big toe. When the big toe is scrunched rearwardly the magnet is moved within the slot relative to the reed switch, thus magnetically activating the switch. When toe pressure is released the foam rubber block forces the magnet back into normal inoperative position to deactivate the reed switch.

  12. SRNL LDRD - Program Contacts

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

    Program Contacts Dr. Elizabeth Hoffman LDRD Program Manager Elizabeth.Hoffman@srnl.doe.gov 803.725.5475 Nixon J. Peralta Program Manager, CEM Office of Laboratory Oversight U.S. Department of Energy Savannah River Operations Office nixon.peralta@srs.gov 803.725.5967

  13. Regenerative switching CMOS system

    DOE Patents [OSTI]

    Welch, J.D.

    1998-06-02

    Complementary Metal Oxide Semiconductor (CMOS) Schottky barrier Field Effect Transistor systems, which are a series combination of N and P-Channel MOSFETS, in which Source Schottky barrier junctions of the N and P-Channel Schottky barrier MOSFETS are electrically interconnected, (rather than the Drains as in conventional diffused junction CMOS), which Schottky barrier MOSFET system demonstrates Regenerative Inverting Switching Characteristics in use are disclosed. Both the N and P-Channel Schottky barrier MOSFET devices are unique in that they provide operational Drain Current vs. Drain to Source voltage as a function of Gate voltage only where the polarities of the Drain voltage and Gate voltage are opposite, referenced to the Source as a common terminal, and where the polarity of the voltage applied to the Gate is appropriate to cause Channel inversion. Experimentally derived results which demonstrate and verify the operation of N and P-Channel Schottky barrier MOSFETS actually fabricated on P and N-type Silicon respectively, by a common procedure using vacuum deposited Chromium as a Schottky barrier forming metal, are also provided. 14 figs.

  14. Regenerative switching CMOS system

    DOE Patents [OSTI]

    Welch, James D. (10328 Pinehurst Ave., Omaha, NE 68124)

    1998-01-01

    Complementary Metal Oxide Semiconductor (CMOS) Schottky barrier Field Effect Transistor systems, which are a seriesed combination of N and P-Channel MOSFETS, in which Source Schottky barrier junctions of the N and P-Channel Schottky barrier MOSFETS are electically interconnected, (rather than the Drains as in conventional diffused junction CMOS), which Schottky barrier MOSFET system demonstrates Regenerative Inverting Switching Characteristics in use are disclosed. Both the N and P-Channel Schottky barrier MOSFET devices are unique in that they provide operational Drain Current vs. Drain to Source voltage as a function of Gate voltage only where the polarities of the Drain voltage and Gate voltage are opposite, referenced to the Source as a common terminal, and where the polarity of the voltage applied to the Gate is appropriate to cause Channel inversion. Experimentally derived results which demonstrate and verify the operation of N and P-Channel Schottky barrier MOSFETS actually fabricated on P and N-type Silicon respectively, by a common procedure using vacuum deposited Chromium as a Schottky barrier forming metal, are also provided.

  15. Low impedance switch

    DOE Patents [OSTI]

    Hornig, Donald F.

    1976-01-01

    1. A low inductance switch comprising a pair of spaced apart, annularly shaped, plate members of conducting material supported in substantially parallel, insulated relationship, said plate members being provided with a plurality of radially extending, spoke-like extensions whereby said members may be connected into a plurality of electrical circuits, and an electrical discharge means connected across said spaced plate members for effecting the simultaneous closing of the electrical circuits connected thereto, said electrical discharge means including an elongated, sealed envelope which contains an ionizable gas and which is supported on one of said plate members with the major axis of said envelope extending generally perpendicular to the plane of said plate members, a pair of elongated, spaced apart, insulated electrodes supported within said envelope and extending axially thereof, one of said electrodes being connected to each of said plate members, and a third, firing or trigger electrode supported within said envelope intermediate said main electrodes and being insulated from said main electrodes.

  16. Contact Us | Department of Energy

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

    Contact Us Contact Us For general information from the Policy and Analysis Team, please contact us at EERE.Analysis@ee.doe.gov For EERE Program Evaluation, please contact: Jeff Dowd at Jeff.Dowd@ee.doe.gov Yaw Agyeman at Agyeman@lbl.gov

  17. Wide Bandgap Extrinsic Photoconductive Switches

    SciTech Connect (OSTI)

    Sullivan, J S

    2012-01-17

    Photoconductive semiconductor switches (PCSS) have been investigated since the late 1970s. Some devices have been developed that withstand tens of kilovolts and others that switch hundreds of amperes. However, no single device has been developed that can reliably withstand both high voltage and switch high current. Yet, photoconductive switches still hold the promise of reliable high voltage and high current operation with subnanosecond risetimes. Particularly since good quality, bulk, single crystal, wide bandgap semiconductor materials have recently become available. In this chapter we will review the basic operation of PCSS devices, status of PCSS devices and properties of the wide bandgap semiconductors 4H-SiC, 6H-SiC and 2H-GaN.

  18. High PRF high current switch

    DOE Patents [OSTI]

    Moran, Stuart L. (Fredericksburg, VA); Hutcherson, R. Kenneth (College Park, MD)

    1990-03-27

    A triggerable, high voltage, high current, spark gap switch for use in pu power systems. The device comprises a pair of electrodes in a high pressure hydrogen environment that is triggered by introducing an arc between one electrode and a trigger pin. Unusually high repetition rates may be obtained by undervolting the switch, i.e., operating the trigger at voltages much below the self-breakdown voltage of the device.

  19. Rotation sensor switch

    DOE Patents [OSTI]

    Sevec, John B. (Joliet, IL)

    1978-01-01

    A protective device to provide a warning if a piece of rotating machinery slows or stops comprises a pair of hinged weights disposed to rotate on a rotating shaft of the equipment. When the equipment is rotating, the weights remain in a plane essentially perpendicular to the shaft and constitute part of an electrical circuit that is open. When the shaft slows or stops, the weights are attracted to a pair of concentric electrically conducting disks disposed in a plane perpendicular to the shaft and parallel to the plane of the weights when rotating. A disk magnet attracts the weights to the electrically conducting plates and maintains the electrical contact at the plates to complete an electrical circuit that can then provide an alarm signal.

  20. Contact stress sensor

    DOE Patents [OSTI]

    Kotovsky, Jack

    2014-02-11

    A method for producing a contact stress sensor that includes one or more MEMS fabricated sensor elements, where each sensor element of includes a thin non-recessed portion, a recessed portion and a pressure sensitive element adjacent to the recessed portion. An electric circuit is connected to the pressure sensitive element. The circuit includes a pressure signal circuit element configured to provide a signal upon movement of the pressure sensitive element.

  1. Contact stress sensor

    DOE Patents [OSTI]

    Kotovsky, Jack (Oakland, CA)

    2012-02-07

    A contact stress sensor includes one or more MEMS fabricated sensor elements, where each sensor element of includes a thin non-recessed portion, a recessed portion and a pressure sensitive element adjacent to the recessed portion. An electric circuit is connected to the pressure sensitive element. The circuit includes a thermal compensator and a pressure signal circuit element configured to provide a signal upon movement of the pressure sensitive element.

  2. Media Contact: Will Callicott

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

    Contact: Will Callicott (803) 725-3786 Will.callicott@srnl.doe.gov Savannah River National Laboratory names Panel Members for Chemical Vapor, Worker Protection Study AIKEN, SC (June 23, 2014) - At the request of Washington River Protection Solutions (WRPS), the Savannah River National Laboratory (SRNL) has assembled a team of recognized experts to perform an independent review of the chemical vapors program at the Hanford nuclear waste cleanup site in Washington state. WRPS is the Department of

  3. Nanomechanical switch for integration with CMOS logic.

    SciTech Connect (OSTI)

    Nordquist, Christopher Daniel; Wolfley, Steven L.; Baker, Michael Sean; Czaplewski, David A.; Wendt, Joel Robert; Kraus, Garth Merlin; de Boer, Maarten Pieter; Patrizi, Gary A.

    2008-11-01

    We designed, fabricated and measured the performance of nanoelectromechanical (NEMS) switches. Initial data are reported with one of the switch designs having a measured switching time of 400 ns and an operating voltage of 5 V. The switches operated laterally with unmeasurable leakage current in the 'off' state. Surface micromachining techniques were used to fabricate the switches. All processing was CMOS compatible. A single metal layer, defined by a single mask step, was used as the mechanical switch layer. The details of the modeling, fabrication and testing of the NEMS switches are reported.

  4. Electronic logic for enhanced switch reliability

    DOE Patents [OSTI]

    Cooper, J.A.

    1984-01-20

    A logic circuit is used to enhance redundant switch reliability. Two or more switches are monitored for logical high or low output. The output for the logic circuit produces a redundant and fail-safe representation of the switch outputs. When both switch outputs are high, the output is high. Similarly, when both switch outputs are low, the logic circuit's output is low. When the output states of the two switches do not agree, the circuit resolves the conflict by memorizing the last output state which both switches were simultaneously in and produces the logical complement of this output state. Thus, the logic circuit of the present invention allows the redundant switches to be treated as if they were in parallel when the switches are open and as if they were in series when the switches are closed. A failsafe system having maximum reliability is thereby produced.

  5. Dual contact pogo pin assembly

    DOE Patents [OSTI]

    Hatch, Stephen McGarry

    2015-01-20

    A contact assembly includes a base and a pair of electrical contacts supported by the base. A first end of the first electrical contact corresponds to a first end of the base and is configured to engage a first external conductive circuit element. A first end of the second electrical contact also corresponds to the first end of the base and is configured to engage a second external conductive circuit element. The first contact and the second contact are electrically isolated from one another and configured to compress when engaging an external connector element. The base includes an aperture positioned on a second end of the base outboard of a second end of the first and second electrical contacts. The aperture presents a narrowing shape with a wide mouth distal the electrical contacts and a narrow internal through-hole proximate the electrical contacts.

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    LERF Control Room LERF Control Room. A D D I T I O N A L L I N K S: LERF Home top-right bottom-left-corner bottom-right-corner LERF Key People Contact List Program Management: Dr. Stephen Benson LERF Hall Leader felman@jlab.org 757-269-5026 (fax: 757-269-5519) 12000 Jefferson Avenue, Suite 19 Newport News, VA 23606 User Programs: Michael J. Kelley User Program Manager mkelley@jlab.org 757-269-5736 (fax: 757-269-5755) 12050 Jefferson Avenue, MS 6A Newport News, VA 23606 Dr. Arne Freyberger

  7. Contact JLab | Jefferson Lab

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    News Media Assembling A Cryomodule Jefferson Lab is a world leader in superconducting radiofrequency technologies. Here a cryomodule is being assembled for installation in the lab's accelerator. A D D I T I O N A L L I N K S: Brochures News Room Fact Sheet Newsletter Virtual Tour JLab Video top-right bottom-left-corner bottom-right-corner Public affairs Contacts Mailing Address Jefferson Lab 12000 Jefferson Avenue, Suite 15 Newport News, VA 23606 fax (757) 269-7398 Public Affairs Manager John

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    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Coordinators Each Clean Cities coalition is led by a coordinator. Contact a coordinator to find out more about Clean Cities activities in your area. AL-Alabama Mark Bentley 205-402-2755 mark@alabamacleanfuels.org AR-Arkansas Patti Springs 501-682-8065 psprings@arkansasedc.com AZ-Valley of the Sun (Phoenix) Bill Sheaffer 480-314-0360 bill@cleanairaz.org AZ-Tucson Colleen Crowninshield 520-792-1093, x426 ccrowninshield@pagregion.com CA-Central Coast (San Luis Obispo) Melissa Guise 805-305-5491

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    Contact Information For further information about the conference, please click on the following link. E-mail Ms. Lee Ann Murphey or contact Ms. Lee Ann Murphey CAMDLSU 6980...

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    Contact Us Contact Us Postdoctoral Program Lead Kristene (Tina) Henne Phone: 630.252.2907 E-mail: khenne@anl.gov Administrative Support Kathy Eggers Phone: 630.252.6034 E-mail:...

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    Contact Us The Training Office is located in 105 TASF. If you have any questions, please contact us at one of the numbers listed below: Hiliary Burns, Training Coordinator -...

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    We do our best to respond within 48 hours. Contact us by phone Phone Phone (865)-241-5275 Contact us in writing Mail U.S. Department of Energy Office of Scientific and Technical ...

  17. Contact Us | Department of Energy

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    Contact Us Contact Us Address: 200 Administration Road Oak Ridge, TN 37831 Phone: (865) 576-0742 Operator & Personnel Directory: (865) 574-1000 Email: OakRidgeEM@emor.doe.gov

  18. Contact Us | Department of Energy

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

    Contact Us Contact Us BY MAIL: Office of Project Management Oversight & Assessments U.S. Department of Energy 1000 Independence Ave, SW Washington, DC 20585 BY PHONE: (202) 586-5000 (Main DOE Switchboard)

  19. Sandia National Laboratories: Contact Information

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

    Electromagnetics Bioscience Computing and Information Science Electromagnetics Facilities Programs & Capabilities Partnership Opportunities EM News & Reports Contact Information...

  20. Contact Us | Department of Energy

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

    About Us » Contact Us Contact Us For information about the Office of Nuclear Energy and its programs, please contact us at the following: By Mail: Office of Nuclear Energy U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 By Phone: (202) 586-2240 (Office of Nuclear Energy) (202) 586-5000 (Main DOE Switchboard) News Leadership Organization Budget History Careers Contact Us

  1. Contact Us | Department of Energy

    Office of Environmental Management (EM)

    Contact Us Contact Us For general questions regarding the Bioenergy Technologies Office, please use the contact information below. U.S. Department of Energy - Bioenergy Technologies Office General Contact Information Phone: 202-586-5188 Email: Bioenergy Technologies Office 1000 Independence Avenue, SW, EE-3B, 5H-021 Washington, DC, 20585 Please note: Due to strict mail screening procedures for federal agencies, your letter may take up to 6 weeks to reach the Bioenergy Technologies Office. Media

  2. Contact Us | Department of Energy

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

    Us Contact Us Contact Us provides contact information for employees working in the various functional areas, such as Administrative Services, Aviation, History and Heritage, Freedom of Information, Procurement, and Personal Property, within the Office of Management. Some of the information includes contacts at the Department of Energy field sites. Although these organizations have activities that the Office of Management oversees, in most cases, they do not report directly to the Director of the

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    Energy Savers [EERE]

    About Us » Contact Us Contact Us Address: 1000 Independence Ave. SW Washington DC 20585 Operator & Personnel Directory: 202-586-5000 Office of Technology Transition: OTT@hq.doe.gov Clean Energy Investment Center: CEIC@hq.doe.gov Contact Us News OTT Team OTT Factsheet

  4. Optical Switch Using Risley Prisms

    DOE Patents [OSTI]

    Sweatt, William C. (Albuquerque, NM); Christenson, Todd R. (Albuquerque, NM)

    2005-02-22

    An optical switch using Risley prisms and rotary microactuators to independently rotate the wedge prisms of each Risley prism pair is disclosed. The optical switch comprises an array of input Risley prism pairs that selectively redirect light beams from a plurality of input ports to an array of output Risley prism pairs that similarly direct the light beams to a plurality of output ports. Each wedge prism of each Risley prism pair can be independently rotated by a variable-reluctance stepping rotary microactuator that is fabricated by a multi-layer LIGA process. Each wedge prism can be formed integral to the annular rotor of the rotary microactuator by a DXRL process.

  5. Optical switch using Risley prisms

    DOE Patents [OSTI]

    Sweatt, William C. (Albuquerque, NM); Christenson, Todd R. (Albuquerque, NM)

    2003-04-15

    An optical switch using Risley prisms and rotary microactuators to independently rotate the wedge prisms of each Risley prism pair is disclosed. The optical switch comprises an array of input Risley prism pairs that selectively redirect light beams from a plurality of input ports to an array of output Risley prism pairs that similarly direct the light beams to a plurality of output ports. Each wedge prism of each Risley prism pair can be independently rotated by a variable-reluctance stepping rotary microactuator that is fabricated by a multi-layer LIGA process. Each wedge prism can be formed integral to the annular rotor of the rotary microactuator by a DXRL process.

  6. High voltage MOSFET switching circuit

    DOE Patents [OSTI]

    McEwan, T.E.

    1994-07-26

    The problem of source lead inductance in a MOSFET switching circuit is compensated for by adding an inductor to the gate circuit. The gate circuit inductor produces an inductive spike which counters the source lead inductive drop to produce a rectangular drive voltage waveform at the internal gate-source terminals of the MOSFET. 2 figs.

  7. High voltage MOSFET switching circuit

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1994-01-01

    The problem of source lead inductance in a MOSFET switching circuit is compensated for by adding an inductor to the gate circuit. The gate circuit inductor produces an inductive spike which counters the source lead inductive drop to produce a rectangular drive voltage waveform at the internal gate-source terminals of the MOSFET.

  8. Anode initiated surface flashover switch

    DOE Patents [OSTI]

    Brainard, John P. (Albuquerque, NM); Koss, Robert J. (Albuquerque, NM)

    2003-04-29

    A high voltage surface flashover switch has a pair of electrodes spaced by an insulator. A high voltage is applied to an anode, which is smaller than the opposing, grounded, cathode. When a controllable source of electrons near the cathode is energized, the electrons are attracted to the anode where they reflect to the insulator and initiate anode to cathode breakdown.

  9. Spark gap switch with spiral gas flow

    DOE Patents [OSTI]

    Brucker, John P. (Espanola, NM)

    1989-01-01

    A spark gap switch having a contaminate removal system using an injected gas. An annular plate concentric with an electrode of the switch defines flow paths for the injected gas which form a strong spiral flow of the gas in the housing which is effective to remove contaminates from the switch surfaces. The gas along with the contaminates is exhausted from the housing through one of the ends of the switch.

  10. Dedication of Ethernet Switch | Department of Energy

    Office of Environmental Management (EM)

    Dedication of Ethernet Switch Dedication of Ethernet Switch A presentation of how Nuclear Logistics Inc. performed CGD on the RuggedCom Ethernet Switches. The presentation lays out the dedication process, methods, and standards used. Also included, are key issues and lessons learned. PDF icon Dedication of Ethernet Switch More Documents & Publications Commercial Grade Dedication Guidance QA Corporate Board Meeting - July 2011 (Teleconference) Lemnos Interoperable Security

  11. Privacy Points of Contact | Department of Energy

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

    Microsoft Word - PrivacyContactListingSeptember212010 More Documents & Publications Privacy Act Officers Contact LIst DOE Privacy Program Contact Listing as of September 21,...

  12. Contact Us | Y-12 National Security Complex

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

    Contact Us Contact Us Please contact us if you have questions or would like for us to help identify opportunities for your participation in Y-12 procurements. Socioeconomic...

  13. Contact Information Systems | The Ames Laboratory

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

    Contact Information Systems Questions about Ames Laboratory network issues, contact networks@ameslab.gov Questions about Ames Laboratory websites, contact webrequest@ameslab.gov To...

  14. Contact Us | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Sandia National Laboratory Contact Us Contact Us If you have questions about activities at the Sandia Field Office, please contact the SFO Public Affairs Director at (505)...

  15. CNM Scientific Contact List | Argonne National Laboratory

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

    CNM Scientific Contact List A list of scientific contacts for the Center for Nanoscale Materials PDF icon CNM Scientific Contact sheet 915...

  16. Switch for serial or parallel communication networks

    DOE Patents [OSTI]

    Crosette, Dario B. (DeSoto, TX)

    1994-01-01

    A communication switch apparatus and a method for use in a geographically extensive serial, parallel or hybrid communication network linking a multi-processor or parallel processing system has a very low software processing overhead in order to accommodate random burst of high density data. Associated with each processor is a communication switch. A data source and a data destination, a sensor suite or robot for example, may also be associated with a switch. The configuration of the switches in the network are coordinated through a master processor node and depends on the operational phase of the multi-processor network: data acquisition, data processing, and data exchange. The master processor node passes information on the state to be assumed by each switch to the processor node associated with the switch. The processor node then operates a series of multi-state switches internal to each communication switch. The communication switch does not parse and interpret communication protocol and message routing information. During a data acquisition phase, the communication switch couples sensors producing data to the processor node associated with the switch, to a downlink destination on the communications network, or to both. It also may couple an uplink data source to its processor node. During the data exchange phase, the switch couples its processor node or an uplink data source to a downlink destination (which may include a processor node or a robot), or couples an uplink source to its processor node and its processor node to a downlink destination.

  17. Switch for serial or parallel communication networks

    DOE Patents [OSTI]

    Crosette, D.B.

    1994-07-19

    A communication switch apparatus and a method for use in a geographically extensive serial, parallel or hybrid communication network linking a multi-processor or parallel processing system has a very low software processing overhead in order to accommodate random burst of high density data. Associated with each processor is a communication switch. A data source and a data destination, a sensor suite or robot for example, may also be associated with a switch. The configuration of the switches in the network are coordinated through a master processor node and depends on the operational phase of the multi-processor network: data acquisition, data processing, and data exchange. The master processor node passes information on the state to be assumed by each switch to the processor node associated with the switch. The processor node then operates a series of multi-state switches internal to each communication switch. The communication switch does not parse and interpret communication protocol and message routing information. During a data acquisition phase, the communication switch couples sensors producing data to the processor node associated with the switch, to a downlink destination on the communications network, or to both. It also may couple an uplink data source to its processor node. During the data exchange phase, the switch couples its processor node or an uplink data source to a downlink destination (which may include a processor node or a robot), or couples an uplink source to its processor node and its processor node to a downlink destination. 9 figs.

  18. Method for forming metal contacts

    DOE Patents [OSTI]

    Reddington, Erik; Sutter, Thomas C; Bu, Lujia; Cannon, Alexandra; Habas, Susan E; Curtis, Calvin J; Miedaner, Alexander; Ginley, David S; Van Hest, Marinus Franciscus Antonius Maria

    2013-09-17

    Methods of forming metal contacts with metal inks in the manufacture of photovoltaic devices are disclosed. The metal inks are selectively deposited on semiconductor coatings by inkjet and aerosol apparatus. The composite is heated to selective temperatures where the metal inks burn through the coating to form an electrical contact with the semiconductor. Metal layers are then deposited on the electrical contacts by light induced or light assisted plating.

  19. Electronic logic to enhance switch reliability in detecting openings and closures of redundant switches

    DOE Patents [OSTI]

    Cooper, James A. (Albuquerque, NM)

    1986-01-01

    A logic circuit is used to enhance redundant switch reliability. Two or more switches are monitored for logical high or low output. The output for the logic circuit produces a redundant and failsafe representation of the switch outputs. When both switch outputs are high, the output is high. Similarly, when both switch outputs are low, the logic circuit's output is low. When the output states of the two switches do not agree, the circuit resolves the conflict by memorizing the last output state which both switches were simultaneously in and produces the logical complement of this output state. Thus, the logic circuit of the present invention allows the redundant switches to be treated as if they were in parallel when the switches are open and as if they were in series when the switches are closed. A failsafe system having maximum reliability is thereby produced.

  20. Sandia National Laboratories: Contact Us

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    New Mexico New Mexico Community Involvement: (505) 284-5200 For questions about Environmental Management, contact Community Involvement, (505) 284-5200 California Community...

  1. Contact Us | Robotics Internship Program

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    Contact Us General QuestionsInformation Robotics.Internships@orau.org Current Robotics Interns Kerri Fomby, Program Specialist Robotics.Internships@orau.org Phone: 865-574-4651...

  2. Contact Information | The Ames Laboratory

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    Contact Information Human Resources Office 151 TASF 294-2680 Diane Muncrief Manager 294-5731 Labor Relations - Professional Performance Management HR Policies and interpretation...

  3. LTS Contact Us - Hanford Site

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    Contact Us About Us LTS Home Page LTS Project Management LTS Transition and Timeline LTS Execution LTS Background LTS Information Management LTS Fact Sheets Briefings LTS In The...

  4. Contact DMSE | The Ames Laboratory

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    Contact DMSE Division of Materials Sciences and Engineering Director Business Manager General Inquiries Web Queries Matthew Kramer Susan Elsner Julie Dredla Sarah Wiley 125 Metals...

  5. Contact Us | Department of Energy

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

    Contact Us Contact Us Contact Us For information about the Northern New Mexico Citizens' Advisory board and its programs; for assistance with information on this website; or for general information purposes please contact: William Alexander Technical Writer/Website Administrator william.alexander@em.doe.gov 1 (505) 988-1749 office 1 (800) 218-5942 toll free 1 (505) 989-1752 fax Lee Bishop Designated Federal Officer lee.bishop@em.doe.gov 1 (505) 606-0393 Mike Gardipe Designated Federal Officer

  6. Contact Information | The Ames Laboratory

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    Contact Information Environment, Safety, Health & Assurance (ESH&A), G40 TASF, 294-2153 Sean Whalen ESH&A Manager, Quality Assurance Manager Safety and Security Management...

  7. Contact PPPO | Department of Energy

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    About Us » Contact PPPO Contact PPPO For more information about the Department of Energy's Portsmouth/Paducah Project Office and its programs, contact us: By Mail: Portsmouth/Paducah Project Office 1017 Majestic Drive, Suite 200 Lexington, KY 40513 By Phone: Lexington : (859) 219-4000 Portsmouth : (740) 897-5010 Paducah : (270) 441-6800 By E-mail: Send general information to the PPPO office at: PPPOinfo@lex.doe.gov Contact PPPO Human Resources by email at: HumanResources.PPPO@lex.doe.gov For

  8. NEWS MEDIA CONTACT: FOR IMMEDIATE ...

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

    NEWS MEDIA CONTACT: FOR IMMEDIATE RELEASE: (202) 586-4940 Friday, February 19, 2010 Secretary Chu Announces Over 8 Million to Support Local Energy Assurance Planning Initiatives...

  9. Contact Us | Department of Energy

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    Contact Us Contact Us Contact the IG Hotline BY INTERNET Web Form BY E-MAIL ighotline@hq.doe.gov CORRESPONDENCE U.S. Department of Energy Office of Inspector General ATTN: IG Hotline 1000 Independence Avenue, SW Mail Stop 5D-031 Washington, DC 20585 BY PHONE D.C. Metro Area: (202) 586-4073 Toll free: (800) 541-1625 FAX: (202) 586-4902 Contact Us Office of Inspector General 
1000 Independence Avenue, SW 
Washington, DC 20585 Phone: 202-586-1818 Fax: 202-586-7851 Media Inquiries: 202-253-2162

  10. Secure videoconferencing equipment switching system and method

    DOE Patents [OSTI]

    Hansen, Michael E. (Livermore, CA)

    2009-01-13

    A switching system and method are provided to facilitate use of videoconference facilities over a plurality of security levels. The system includes a switch coupled to a plurality of codecs and communication networks. Audio/Visual peripheral components are connected to the switch. The switch couples control and data signals between the Audio/Visual peripheral components and one but nor both of the plurality of codecs. The switch additionally couples communication networks of the appropriate security level to each of the codecs. In this manner, a videoconferencing facility is provided for use on both secure and non-secure networks.

  11. Methods for batch fabrication of cold cathode vacuum switch tubes

    DOE Patents [OSTI]

    Walker, Charles A. (Albuquerque, NM); Trowbridge, Frank R. (Albuquerque, NM)

    2011-05-10

    Methods are disclosed for batch fabrication of vacuum switch tubes that reduce manufacturing costs and improve tube to tube uniformity. The disclosed methods comprise creating a stacked assembly of layers containing a plurality of adjacently spaced switch tube sub-assemblies aligned and registered through common layers. The layers include trigger electrode layer, cathode layer including a metallic support/contact with graphite cathode inserts, trigger probe sub-assembly layer, ceramic (e.g. tube body) insulator layer, and metallic anode sub-assembly layer. Braze alloy layers are incorporated into the stacked assembly of layers, and can include active metal braze alloys or direct braze alloys, to eliminate costs associated with traditional metallization of the ceramic insulator layers. The entire stacked assembly is then heated to braze/join/bond the stack-up into a cohesive body, after which individual switch tubes are singulated by methods such as sawing. The inventive methods provide for simultaneously fabricating a plurality of devices as opposed to traditional methods that rely on skilled craftsman to essentially hand build individual devices.

  12. Switch for Good Community Program

    SciTech Connect (OSTI)

    Crawford, Tabitha; Amran, Martha

    2013-11-19

    Switch4Good is an energy-savings program that helps residents reduce consumption from behavior changes; it was co-developed by Balfour Beatty Military Housing Management (BB) and WattzOn in Phase I of this grant. The program was offered at 11 Navy bases. Three customer engagement strategies were evaluated, and it was found that Digital Nudges (a combination of monthly consumption statements with frequent messaging via text or email) was most cost-effective.

  13. Fast superconducting magnetic field switch

    DOE Patents [OSTI]

    Goren, Y.; Mahale, N.K.

    1996-08-06

    The superconducting magnetic switch or fast kicker magnet is employed with electron stream or a bunch of electrons to rapidly change the direction of flow of the electron stream or bunch of electrons. The apparatus employs a beam tube which is coated with a film of superconducting material. The tube is cooled to a temperature below the superconducting transition temperature and is subjected to a constant magnetic field which is produced by an external dc magnet. The magnetic field produced by the dc magnet is less than the critical field for the superconducting material, thus, creating a Meissner Effect condition. A controllable fast electromagnet is used to provide a magnetic field which supplements that of the dc magnet so that when the fast magnet is energized the combined magnetic field is now greater that the critical field and the superconducting material returns to its normal state allowing the magnetic field to penetrate the tube. This produces an internal field which effects the direction of motion and of the electron stream or electron bunch. The switch can also operate as a switching mechanism for charged particles. 6 figs.

  14. Fast superconducting magnetic field switch

    DOE Patents [OSTI]

    Goren, Yehuda (Mountain View, CA); Mahale, Narayan K. (The Woodlands, TX)

    1996-01-01

    The superconducting magnetic switch or fast kicker magnet is employed with electron stream or a bunch of electrons to rapidly change the direction of flow of the electron stream or bunch of electrons. The apparatus employs a beam tube which is coated with a film of superconducting material. The tube is cooled to a temperature below the superconducting transition temperature and is subjected to a constant magnetic field which is produced by an external dc magnet. The magnetic field produced by the dc magnet is less than the critical field for the superconducting material, thus, creating a Meissner Effect condition. A controllable fast electromagnet is used to provide a magnetic field which supplements that of the dc magnet so that when the fast magnet is energized the combined magnetic field is now greater that the critical field and the superconducting material returns to its normal state allowing the magnetic field to penetrate the tube. This produces an internal field which effects the direction of motion and of the electron stream or electron bunch. The switch can also operate as a switching mechanism for charged particles.

  15. Contact | Solid State Solar Thermal Energy Conversion

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    Contact ADDRESS 77 Massachusetts Ave., Rm 3-174 Cambridge MA 02139 CONTACT 617-253-7413

  16. Contact Us | Photosynthetic Antenna Research Center

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    Contact Us Contact Us Your name * Your e-mail address * Subject * Message * Leave this field blank Submit...

  17. Contact Us | Department of Energy

    Office of Environmental Management (EM)

    Contact Us Contact Us We welcome any questions or feedback you may have about the Better Buildings Neighborhood Program. Office of Building Technologies EE-2J U.S. Department of Energy 950 L'Enfant Washington, D.C. 20585 betterbuildingssupport@erg.com

  18. Laser method for forming low-resistance ohmic contacts on semiconducting oxides

    DOE Patents [OSTI]

    Narayan, Jagdish (Knoxville, TN)

    1981-01-01

    This invention is a new method for the formation of high-quality ohmic contacts on wide-band-gap semiconducting oxides. As exemplified by the formation of an ohmic contact on n-type BaTiO.sub.3 containing a p-n junction, the invention entails depositing a film of a metallic electroding material on the BaTiO.sub.3 surface and irradiating the film with a Q-switched laser pulse effecting complete melting of the film and localized melting of the surface layer of oxide immediately underlying the film. The resulting solidified metallic contact is ohmic, has unusually low contact resistance, and is thermally stable, even at elevated temperatures. The contact does not require cleaning before attachment of any suitable electrical lead. This method is safe, rapid, reproducible, and relatively inexpensive.

  19. Contact Us | Department of Energy

    Office of Environmental Management (EM)

    Contact Us Contact Us U.S. Department of Energy SunShot Initiative Phone: 202-287-1862 Email: sunshotsummit@ee.doe.gov Mailing Address: 1000 Independence Avenue, SW Washington, DC 20585 Registration inquiries should be sent to sunshotsummit@sra.com. For questions regarding the Technology Forum or the Peer Review please email sunshotsummit@ee.doe.gov. Media with inquiries should contact Jamie Nolan at jamie.nolan@ee.doe.gov or David Mayorga at david.mayorga@ee.doe.gov.

  20. Microwave-triggered laser switch

    DOE Patents [OSTI]

    Piltch, Martin S. (Los Alamos, NM)

    1984-01-01

    A high-repetition rate switch for delivering short duration, high-power electrical pulses from a pulsed-charged dc power supply. The present invention utilizes a microwave-generating device such as a magnetron that is capable of producing high-power pulses at high-pulse repetition rates and fast-pulse risetimes for long periods with high reliability. The rail-gap electrodes provide a large surface area that reduces induction effects and minimizes electrode erosion. Additionally, breakdown is initiated in a continuous geometric fashion that also increases operating lifetime of the device.

  1. Optical switching system and method

    DOE Patents [OSTI]

    Ranganathan, Radha (N. Tonawanda, NY); Gal, Michael (Engadine, AU); Taylor, P. Craig (Salt Lake City, UT)

    1992-01-01

    An optically bistable device is disclosed. The device includes a uniformly thick layer of amorphous silicon to constitute a Fabry-Perot chamber positioned to provide a target area for a probe beam. The probe beam has a maximum energy less than the energy band gap of the amorphous semiconductor. In a preferred embodiment, a multilayer dielectric mirror is positioned on the Fabry-Perot chamber to increase the finesse of switching of the device. The index of refraction of the amorphous material is thermally altered to alter the transmission of the probe beam.

  2. Multiprocessor switch with selective pairing

    DOE Patents [OSTI]

    Gara, Alan; Gschwind, Michael K; Salapura, Valentina

    2014-03-11

    System, method and computer program product for a multiprocessing system to offer selective pairing of processor cores for increased processing reliability. A selective pairing facility is provided that selectively connects, i.e., pairs, multiple microprocessor or processor cores to provide one highly reliable thread (or thread group). Each paired microprocessor or processor cores that provide one highly reliable thread for high-reliability connect with a system components such as a memory "nest" (or memory hierarchy), an optional system controller, and optional interrupt controller, optional I/O or peripheral devices, etc. The memory nest is attached to a selective pairing facility via a switch or a bus

  3. Microwave-triggered laser switch

    DOE Patents [OSTI]

    Piltch, M.S.

    1982-05-19

    A high-repetition rate switch is described for delivering short duration, high-powered electrical pulses from a pulsed-charged dc power supply. The present invention utilizes a microwave-generating device such as a magnetron that is capable of producing high-power pulses at high-pulse repetition rates and fast-pulse risetimes for long periods with high reliability. The rail-gap electrodes provide a large surface area that reduces induction effects and minimizes electrode erosion. Additionally, breakdown is initiated in a continuous geometric fashion that also increases operating lifetime of the device.

  4. Laser activated diffuse discharge switch

    DOE Patents [OSTI]

    Christophorou, Loucas G. (Oak Ridge, TN); Hunter, Scott R. (Oak Ridge, TN)

    1988-01-01

    The invention is a gas mixture for a diffuse discharge switch which is capable of changing from a conducting state to an insulating state in the presence of electrons upon the introduction of laser light. The mixture is composed of a buffer gas such as nitrogen or argon and an electron attaching gas such as C.sub.6 H.sub.5 SH, C.sub.6 H.sub.5 SCH.sub.3, CH.sub.3 CHO and CF.sub.3 CHO wherein the electron attachment is brought on by indirect excitation of molecules to long-lived states by exposure to laser light.

  5. Stable nonlinear Mach-Zehnder fiber switch

    DOE Patents [OSTI]

    Digonnet, Michel J. F. (Palo Alto, CA); Shaw, H. John (Palo Alto, CA); Pantell, Richard H. (Menlo Park, CA); Sadowski, Robert W. (Camp Doha, KW)

    1999-01-01

    An all-optical fiber switch is implemented within a short Mach-Zehnder interferometer configuration. The Mach-Zehnder switch is constructed to have a high temperature stability so as to minimize temperature gradients and other thermal effects which result in undesirable instability at the output of the switch. The Mach-Zehnder switch of the preferred embodiment is advantageously less than 2 cm in length between couplers to be sufficiently short to be thermally stable, and full switching is accomplished by heavily doping one or both of the arms between the couplers so as to provide a highly nonlinear region within one or both of the arms. A pump input source is used to affect the propagation characteristics of one of the arms to control the output coupling ratio of the switch. Because of the high nonlinearity of the pump input arm, low pump powers can be used, thereby alleviating difficulties and high cost associated with high pump input powers.

  6. FOIA Contacts | Department of Energy

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

    Phone: 202-586-5955 Fax: 202-586-0575 FOIA Web Page: http:energy.govmanagement... Poli A. Marmolejos FOIA Appeals Officer Phone: 202-287-1400 Appeals Contact Web Page: ...

  7. contact | netl.doe.gov

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

    On-Site Research Contacts Onsite Research Key Personnel Search All Federal On-Site Personnel Cynthia Powell Director, Office of Research and Development Dr. Cynthia Powell is the...

  8. Technical Contact: James C. Liljegren

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

    within approximately 50 feet. Precision timing is very important to the Technical Contact: James C. Liljegren Phone: 630-252-9540 Email: jcliljegren@anl.gov Editor: Donna J....

  9. Contact Us | Argonne National Laboratory

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

    Contact Us Address and phone Argonne National Laboratory 9700 S. Cass Avenue Lemont, IL 60439. Phone: 630252-2000 For members of the news media News releases online Argonne media...

  10. Contact Us | The Ames Laboratory

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

    Contact Us Occupational Medicine: 515-294-2056 G11 Technical Administrative Services Facility (TASF) om@ameslab.gov Tell us how we may improve services to you. We value your...

  11. Media Contacts | Argonne National Laboratory

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

    environment and life sciences. Contact him at (630) 252-1232 or media@anl.gov. Greg Cunningham Argonne National Laboratory Greg Cunningham is a public information officer who...

  12. Method for lubricating contacting surfaces

    DOE Patents [OSTI]

    Dugger, Michael T. (Tijeras, NM); Ohlhausen, James A. (Albuquerque, NM); Asay, David B. (Boalsburg, PA); Kim, Seong H. (State College, PA)

    2011-12-06

    A method is provided for tribological lubrication of sliding contact surfaces, where two surfaces are in contact and in motion relative to each other, operating in a vapor-phase environment containing at least one alcohol compound at a concentration sufficiently high to provide one monolayer of coverage on at least one of the surfaces, where the alcohol compound continuously reacts at the surface to provide lubrication.

  13. Fermilab | Contact Fermilab | Email Fermilab

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

    feature photo feature photo feature photo feature photo feature photo Contact Fermilab Navbar Toggle About Quick Info Science History Organization Photo and video gallery Diversity Education Safety Sustainability and environment Contact Newsroom Spotlight Press releases Fact sheets and brochures symmetry Interactions.org Photo and video archive Resources for ... Employees Researchers, Postdocs and Graduate Students Job Seekers Neighbors Industry K-12 Students, Teachers and Undergraduates Media

  14. Contact SEP | Department of Energy

    Office of Environmental Management (EM)

    Superior Energy Performance » Contact SEP Contact SEP Superior Energy Performance logo Please send questions, comments, and inquiries to: superiorenergyperformance@ee.doe.gov or Paul Scheihing paul.scheihing@ee.doe.gov 202-586-7234 Receive SEP Updates Enter your email address to receive updates about the SEP Program. Subscribe Enroll or Apply Today Navigate the SEP Site Superior Energy Performance SEP and ISO 50001 Certification Process The Business Case for SEP Case Studies Certified

  15. Contact Us | Department of Energy

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

    Contact Us Contact Us Office of Economic Impact & Diversity 1000 Independence Ave., SW Washington, DC 20585 Phone: (202) 586-8383 Fax: (202) 586-3075 Office of the Director Director, The Honorable LaDoris 'Dot' Harris Principal Deputy Director, Andre H. Sayles, Ph.D. Office of Minority Education and Community Development Deputy Director, Annie Whatle Annie.Whatley@hq.doe.gov Office of Minority Business and Economic Development Deputy Director, Karen Atkinson Karen.Atkinson@hq.doe.gov Office

  16. FOIA Contacts | Department of Energy

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

    Contacts FOIA Contacts FOIA REQUESTER SERVICE CENTERS, FOIA PUBLIC LIASONS, AND FOIA OFFICERS DOE Headquarters (HQ) FOIA Requester Service Center 1000 Independence Avenue, SW Washington, DC 20585 Phone: 202-586-5955 Fax: 202-586-0575 FOIA Web Page: http://energy.gov/management/office-management/operational-management/freedom-information-act Ingrid A. Kolb Chief FOIA Officer Kevin T. Hagerty FOIA Public Liaison Phone: 202-586-5955 Alexander C. Morris FOIA Officer Phone: 202-586-3159 Poli A.

  17. Magnetic switch coupling to synchronize magnetic modulators

    DOE Patents [OSTI]

    Reed, Kim W. (Albuquerque, NM); Kiekel, Paul (Albuquerque, NM)

    1999-01-01

    Apparatus for synchronizing the output pulses from a pair of magnetic switches. An electrically conductive loop is provided between the pair of switches with the loop having windlings about the core of each of the magnetic switches. The magnetic coupling created by the loop removes voltage and timing variations between the outputs of the two magnetic switches caused by any of a variety of factors. The only remaining variation is a very small fixed timing offset caused by the geometry and length of the loop itself.

  18. Multi-megavolt low jitter multistage switch

    DOE Patents [OSTI]

    Humphreys, D.R.; Penn, K.J. Jr.

    1985-06-19

    It is one object of the present invention to provide a multistage switch capable of holding off numerous megavolts, until triggered, from a particle beam accelerator of the type used for inertial confinement fusion. The invention provides a multistage switch having low timing jitter and capable of producing multiple spark channels for spreading current over a wider area to reduce electrode damage and increase switch lifetime. The switch has fairly uniform electric fields and a short spark gap for laser triggering and is engineered to prevent insulator breakdowns.

  19. Magnetic switch coupling to synchronize magnetic modulators

    DOE Patents [OSTI]

    Reed, K.W.; Kiekel, P.

    1999-04-27

    Apparatus for synchronizing the output pulses from a pair of magnetic switches is disclosed. An electrically conductive loop is provided between the pair of switches with the loop having windings about the core of each of the magnetic switches. The magnetic coupling created by the loop removes voltage and timing variations between the outputs of the two magnetic switches caused by any of a variety of factors. The only remaining variation is a very small fixed timing offset caused by the geometry and length of the loop itself. 13 figs.

  20. Semiconductor diode laser having an intracavity spatial phase controller for beam control and switching

    DOE Patents [OSTI]

    Hohimer, J.P.

    1994-06-07

    A high-power broad-area semiconductor laser having a intracavity spatial phase controller is disclosed. The integrated intracavity spatial phase controller is easily formed by patterning an electrical contact metallization layer when fabricating the semiconductor laser. This spatial phase controller changes the normally broad far-field emission beam of such a laser into a single-lobed near-diffraction-limited beam at pulsed output powers of over 400 mW. Two operating modes, a thermal and a gain operating mode, exist for the phase controller, allowing for steering and switching the beam as the modes of operation are switched, and the emission beam may be scanned, for example, over a range of 1.4 degrees or switched by 8 degrees. More than one spatial phase controller may be integrated into the laser structure. 6 figs.

  1. Semiconductor diode laser having an intracavity spatial phase controller for beam control and switching

    DOE Patents [OSTI]

    Hohimer, John P. (Albuquerque, NM)

    1994-01-01

    A high-power broad-area semiconductor laser having a intracavity spatial phase controller is disclosed. The integrated intracavity spatial phase controller is easily formed by patterning an electrical contact metallization layer when fabricating the semiconductor laser. This spatial phase controller changes the normally broad far-field emission beam of such a laser into a single-lobed near-diffraction-limited beam at pulsed output powers of over 400 mW. Two operating modes, a thermal and a gain operating mode, exist for the phase controller, allowing for steering and switching the beam as the modes of operation are switched, and the emission beam may be scanned, for example, over a range of 1.4 degrees or switched by 8 degrees. More than one spatial phase controller may be integrated into the laser structure.

  2. Ferromagnetic tunnel contacts to graphene: Contact resistance and spin signal

    SciTech Connect (OSTI)

    Cubukcu, M.; Laczkowski, P.; Vergnaud, C.; Marty, A.; Attan, J.-P.; Notin, L.; Vila, L. Jamet, M.; Martin, M.-B.; Seneor, P.; Anane, A.; Deranlot, C.; Fert, A.; Auffret, S.; Ducruet, C.

    2015-02-28

    We report spin transport in CVD graphene-based lateral spin valves using different magnetic contacts. We compared the spin signal amplitude measured on devices where the cobalt layer is directly in contact with the graphene to the one obtained using tunnel contacts. Although a sizeable spin signal (up to ?2 ?) is obtained with direct contacts, the signal is strongly enhanced (?400 ?) by inserting a tunnel barrier. In addition, we studied the resistance-area product (R.A) of a variety of contacts on CVD graphene. In particular, we compared the R.A products of alumina and magnesium oxide tunnel barriers grown by sputtering deposition of aluminum or magnesium and subsequent natural oxidation under pure oxygen atmosphere or by plasma. When using an alumina tunnel barrier on CVD graphene, the R.A product is high and exhibits a large dispersion. This dispersion can be highly reduced by using a magnesium oxide tunnel barrier, as for the R.A value. This study gives insight in the material quest for reproducible and efficient spin injection in CVD graphene.

  3. Solar cell with back side contacts

    DOE Patents [OSTI]

    Nielson, Gregory N; Okandan, Murat; Cruz-Campa, Jose Luis; Resnick, Paul J; Wanlass, Mark Woodbury; Clews, Peggy J

    2013-12-24

    A III-V solar cell is described herein that includes all back side contacts. Additionally, the positive and negative electrical contacts contact compoud semiconductor layers of the solar cell other than the absorbing layer of the solar cell. That is, the positive and negative electrical contacts contact passivating layers of the solar cell.

  4. Towards Understanding Electronic Switching in Magnets | U.S. DOE Office of

    Office of Science (SC) Website

    Science (SC) Understanding Electronic Switching in Magnets Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594 E: Email Us More Information » 09.01.13 Towards Understanding

  5. Fundamental New Insight Into Material for Optical-Switching | U.S. DOE

    Office of Science (SC) Website

    Office of Science (SC) Fundamental New Insight Into Material for Optical-Switching Basic Energy Sciences (BES) BES Home About Research Facilities Science Highlights Benefits of BES Funding Opportunities Basic Energy Sciences Advisory Committee (BESAC) Community Resources Contact Information Basic Energy Sciences U.S. Department of Energy SC-22/Germantown Building 1000 Independence Ave., SW Washington, DC 20585 P: (301) 903-3081 F: (301) 903-6594 E: Email Us More Information » 09.01.13

  6. Contacts | Y-12 National Security Complex

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

    Contacts Contacts The primary contact for more information about New Hope Center's public use areas is the Y̩12 NHC community coordinator: Anna Lisa Conover Work: 865.574.3615 Pager: 865.916.3504 Fax: 865.241.1943

  7. Points of Contact and Privacy Act Advisory

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

    Points of Contact Points of Contact and Privacy Act Advisory If you are trying to contact an agency other than the Department of Energy, use the web address: http:...

  8. Sandia National Laboratories: Contact Z-Machine

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

    About Z Z Research Z News Contact Us Facebook Twitter YouTube Flickr RSS Z-Machine Contact Z For more information, please contact us. * Items are Required First Name * Last Name *...

  9. Gas mixtures for spark gap closing switches

    DOE Patents [OSTI]

    Christophorou, Loucas G. (Oak Ridge, TN); McCorkle, Dennis L. (Knoxville, TN); Hunter, Scott R. (Oak Ridge, TN)

    1988-01-01

    Gas mixtures for use in spark gap closing switches comprised of fluorocarbons and low molecular weight, inert buffer gases. To this can be added a third gas having a low ionization potential relative to the buffer gas. The gas mixtures presented possess properties that optimized the efficiency spark gap closing switches.

  10. WAP Memorandum 011: Clarification on Fuel Switching

    Broader source: Energy.gov [DOE]

    As the WAP continually develops skilled and technically proficient program personnel at the state and local levels, the DOE has decided to revise its current policy related to fuel switching in eligible homes served by the Program. WAP Grantees are now provided two options regarding the decision-making process for fuel switching to occur, detailed in WAP Memo 011.

  11. Ames Lab 101: Ultrafast Magnetic Switching

    ScienceCinema (OSTI)

    Jigang Wang

    2013-06-05

    Ames Laboratory physicists have found a new way to switch magnetism that is at least 1000 times faster than currently used in magnetic memory technologies. Magnetic switching is used to encode information in hard drives, magnetic random access memory and other computing devices. The discovery potentially opens the door to terahertz and faster memory speeds.

  12. Gas mixtures for spark gap closing switches

    DOE Patents [OSTI]

    Christophorou, L.G.; McCorkle, D.L.; Hunter, S.R.

    1987-02-20

    Gas mixtures for use in spark gap closing switches comprised of fluorocarbons and low molecular weight, inert buffer gases. To this can be added a third gas having a low ionization potential relative to the buffer gas. The gas mixtures presented possess properties that optimized the efficiency spark gap closing switches. 6 figs.

  13. Transparent electrode for optical switch

    DOE Patents [OSTI]

    Goldhar, Julius (San Ramon, CA); Henesian, Mark A. (Livermore, CA)

    1986-01-01

    A low pressure gas electrode utilizing ionized gas in a glow discharge regime forms a transparent electrode for electro-optical switches. The transparent electrode comprises a low pressure gas region on both sides of the crystal. When the gas is ionized, e.g., by a glow discharge in the low pressure gas, the plasma formed is a good conductor. The gas electrode acts as a highly uniform conducting electrode. Since the plasma is transparent to a high energy laser beam passing through the crystal, the electrode is a transparent electrode. A crystal exposed from two sides to such a plasma can be charged up uniformly to any desired voltage. The plasma can be created either by the main high voltage pulser used to charge up the crystal or by auxiliary discharges or external sources of ionization. A typical configuration utilizes 10 torr argon in the discharge region adjacent to each crystal face.

  14. Geothermal Technologies Office Contacts | Department of Energy

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

    Geothermal Technologies Office Contacts Geothermal Technologies Office Contacts This page lists key Geothermal Technologies Office (GTO) staff, their assignments, and contact information. GTO is part of the Office of Energy Efficiency and Renewable Energy (EERE) at the U.S. Department of Energy (DOE). For general inquiries, please use the general contact information below. To provide feedback on this site or report technical issues, contact our Webmaster. General Contact Information U.S.

  15. EERE Communications Contacts | Department of Energy

    Office of Environmental Management (EM)

    EERE Communications Contacts EERE Communications Contacts Find the contact information for key members of the Office of Energy Efficiency and Renewable Energy (EERE) Web and print teams. EERE Web Project Manager EERE Web Template Coordinator EERE Information Architect EERE Usability Coordinator EERE Web System Administrator EERE Web Governance Team Facilitator EERE Publications Manager EERE Exhibits Coordinator If you have technical problems with this site, contact the Website Contact. Contacts

  16. Seismic switch for strong motion measurement

    DOE Patents [OSTI]

    Harben, P.E.; Rodgers, P.W.; Ewert, D.W.

    1995-05-30

    A seismic switching device is described that has an input signal from an existing microseismic station seismometer and a signal from a strong motion measuring instrument. The seismic switch monitors the signal level of the strong motion instrument and passes the seismometer signal to the station data telemetry and recording systems. When the strong motion instrument signal level exceeds a user set threshold level, the seismometer signal is switched out and the strong motion signal is passed to the telemetry system. The amount of time the strong motion signal is passed before switching back to the seismometer signal is user controlled between 1 and 15 seconds. If the threshold level is exceeded during a switch time period, the length of time is extended from that instant by one user set time period. 11 figs.

  17. Seismic switch for strong motion measurement

    DOE Patents [OSTI]

    Harben, Philip E. (Oakley, CA); Rodgers, Peter W. (Santa Barbara, CA); Ewert, Daniel W. (Patterson, CA)

    1995-01-01

    A seismic switching device that has an input signal from an existing microseismic station seismometer and a signal from a strong motion measuring instrument. The seismic switch monitors the signal level of the strong motion instrument and passes the seismometer signal to the station data telemetry and recording systems. When the strong motion instrument signal level exceeds a user set threshold level, the seismometer signal is switched out and the strong motion signal is passed to the telemetry system. The amount of time the strong motion signal is passed before switching back to the seismometer signal is user controlled between 1 and 15 seconds. If the threshold level is exceeded during a switch time period, the length of time is extended from that instant by one user set time period.

  18. Oregon Department of Environmental Quality Contacts Webpage ...

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Web Site: Oregon Department of Environmental Quality Contacts Webpage Abstract Contact information for DEQ. Author Oregon...

  19. TEPP Points of Contact | Department of Energy

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

    Transportation Emergency Preparedness Program TEPP Points of Contact TEPP Points of Contact TEPP is a national program managed at a headquarters level and implemented through...

  20. Contact CEFRC - Combustion Energy Frontier Research Center

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

    Contact CEFRC Contact CEFRC Combustion Energy Frontier Research Center Princeton University Engineering Quadrangle Suite D-334 Olden Street Princeton, NJ 08544-5263 Phone:...

  1. Contact Us - HPMC Occupational Health Services

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    Contact Us About HPMC OMS Contact Us Directions Event Calendar Hours of Operation How We Compare Job Seekers Notice of Privacy Practices Patient Rights & Responsibilities...

  2. Contact Us | Argonne Leadership Computing Facility

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    Our Teams User Advisory Council Careers Margaret Butler Fellowship Visiting Us Contact Us Contact Us Your name * Your e-mail address * Subject * Message * Verification *...

  3. Contact Us - Working With Us | NREL

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    Contact Us - Working With Us Contact us to learn more about working with NREL. Your name (Required) Your email address (Required) Your telephone number Your organization Your role...

  4. Federal NEPA Contacts | Department of Energy

    Energy Savers [EERE]

    Federal NEPA Contacts CEQ and most Federal agencies identify primary points of contact for NEPA compliance. Normally a senior environmental professional, environmental law...

  5. Non- contacting capacitive diagnostic device

    DOE Patents [OSTI]

    Ellison, Timothy

    2005-07-12

    A non-contacting capacitive diagnostic device includes a pulsed light source for producing an electric field in a semiconductor or photovoltaic device or material to be evaluated and a circuit responsive to the electric field. The circuit is not in physical contact with the device or material being evaluated and produces an electrical signal characteristic of the electric field produced in the device or material. The diagnostic device permits quality control and evaluation of semiconductor or photovoltaic device properties in continuous manufacturing processes.

  6. Contact Information | The Ames Laboratory

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

    Contact Information If you have any questions concerning the Materials Preparation Center (MPC) services or capabilities, do not hesitate to contact us. Please also visit our Terms & Conditions page. Submit your request online and it will be routed to the appropriate channel. In all cases, the fax number is (515)-294-8727. Larry Jones Matthew F. Besser Director, MPC 121 Metals Development Building Ames Laboratory Ames, IA 50011-3020 Phone: 515-294-5236 Fax: 515-294-8727 E-mail:

  7. Contact EM | Department of Energy

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

    About Us » Contact EM Contact EM For information about the Office of Environmental Management and its programs; for assistance in information on this website; or for general information purposes: By E-Mail: EM.WebContentManager@em.doe.gov By Mail: U.S. Department of Energy ATTENTION: Office of Environmental Management 1000 Independence Ave., SW Washington, DC 20585 By Phone: 202-586-5000 (Main DOE Switchboard) 202-586-7709 (Office of Environmental Management) National DOE Phone Directory For

  8. Contact Us | Department of Energy

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

    Contact Us Contact Us For general information about the Department of Energy: Phone: 202-586-5000 For more info or help with iManage: Phone: Headquarters (301) 903-2500, or use Toll Free: 1-866-834-6246 - Option #4, then choose: For iPortal/STARS Support For Travel/GovTrip Support For STRIPES Support For Payroll Support For DARTS/PARS-II Support For iBudget/FDS Support For ePerformance Support For ESS Support For EPAT Support For more information about BEARS - bearssupport@oro.doe.gov For more

  9. Contact Us | Department of Energy

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

    Contact Us Contact Us For information about the Office of Congressional & Intergovernmental Affairs at the Department of Energy; for assistance in locating information on the web site: By Mail: U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 By Phone: 1-202-586-5450 1-800-dial-DOE (1-800-342-5363) By Fax: 202-586-4891 By E-mail: You can send an email to the Webmaster at robert.tuttle@hq.doe.gov For Hearing and/or Speech Impaired: Telephone Communication Public

  10. Contact Us | Department of Energy

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

    Contact Us Contact Us For information about the Office of Fossil Energy and its programs; for assistance with information on this website; or for general information purposes: General Email: FE Office of Communications Mail: Office of Fossil Energy (FE) U.S. Department of Energy Forrestal Building 1000 Independence Avenue, SW Washington, DC 20585 Phone: 202-586-7920 Office of Clean Coal 202-586-5600 Office of Oil and Natural Gas 202-586-9478 Office of Natural Gas Regulation Docket Room

  11. Contact Us | Department of Energy

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

    Us » Contact Us Contact Us Mailing Address: U.S. Department of Energy Office of Legacy Management 1000 Independence Avenue, SW Washington, DC 20585 Phone: (202) 586-3559 Fax: (202) 586-1540 Email: LM@hq.doe.gov Technical Assistance: LMWebsiteSupport@LM.doe.gov EEOICPA Program The U.S. Department of Labor (DOL) administers the EEOICPA Program. For information on how to submit an EEOICPA claim, please go to: U.S. Department of Labor, Division of Energy Employees Occupational Illness Compensation

  12. Contact Us | Department of Energy

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

    Contact Us Contact Us TITLE XVII LOAN GUARANTEE PROGRAM U.S. Department of Energy LP 10 1000 Independence Avenue, SW Washington D.C. 20585 Phone: 202-586-8336 Fax: 202-586-7366 Email: lgprogram@hq.doe.gov PRESS RELATED INQUIRIES Office of Public Affairs U.S. Department of Energy 1000 Independence Avenue, SW Washington D.C. 20585 Phone: 202-287-6574 Fax: 202-586-7366 ATVM DIRECT LOAN PROGRAM U.S. Department of Energy LP 20 1000 Independence Avenue, SW Washington D.C. 20585 Phone: 202-586-8146

  13. Contact Us | Department of Energy

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

    Contact Us Contact Us By E-mail: You can send an email to the Secretary of Energy at The.Secretary@hq.doe.gov By Phone: 202-586-5000 (Main Switchboard) or use the National Phone Directory For Hearing and/or Speech Impaired: 1-800-877-8339 By Fax: 202-586-4403 *By Mail: U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 *Please note: mail may take up to 3 weeks to arrive. As such, we strongly encourage you to use the email address provided above or the form provided below.

  14. Contact Us | Department of Energy

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

    About » Contact Us Contact Us U.S. Department of Energy SunShot Initiative Phone: 202-287-1862 Email: solar@ee.doe.gov Mailing Address: 1000 Independence Avenue, SW Washington, DC, 20585 Additional information about visiting our offices. Media Inquiries For media inquiries, please email the media team for the Office of Energy Efficiency and Renewable Energy at EE.Media@ee.doe.gov and be sure to reference "SunShot Initiative" in the email subject line. Sign up for the Energy

  15. Veteran's Contacts | Department of Energy

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

    Veteran's Contacts Veteran's Contacts Veteran Employment Program Manager Donna Friend; 202-586-5880; VetProgram@hq.doe.gov Headquarters DOE Jobs in: Washington, DC Rhonda Kennedy; 202-586-3544; rhonda.kennedy@hq.doe.gov NNSA Jobs in: Washington, DC; Las Vegas, NV; Albuquerque, NM; Carlsbad, NM Norm Schwantes; 505-845-5676; norman.schwantes@nnsa.doe.gov Office of the Inspector General Jobs in: Washington, DC; Germantown, MD; Albuquerque, NM; Chicago, IL; Idaho Falls, ID; Las Vegas, NV; Livermore,

  16. Contacts

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

    Email Collections Wendy Strohmeyer Email Exhibits Omar Juveland Email Exhibit Shop Robert Naranjo Email Facilities Mike Martinez Email Science Education Gordon McDonough...

  17. Lithium fluoride injection layers can form quasi-Ohmic contacts for both holes and electrons

    SciTech Connect (OSTI)

    Bory, Benjamin F.; Janssen, Ren A. J.; Meskers, Stefan C. J.; Rocha, Paulo R. F.; Gomes, Henrique L.; De Leeuw, Dago M.

    2014-09-22

    Thin LiF interlayers are typically used in organic light-emitting diodes to enhance the electron injection. Here, we show that the effective work function of a contact with a LiF interlayer can be either raised or lowered depending on the history of the applied bias. Formation of quasi-Ohmic contacts for both electrons and holes is demonstrated by electroluminescence from symmetric LiF/polymer/LiF diodes in both bias polarities. The origin of the dynamic switching is charging of electrically induced Frenkel defects. The current densityelectroluminescencevoltage characteristics can qualitatively be explained. The interpretation is corroborated by unipolar memristive switching and by bias dependent reflection measurements.

  18. Electrical contact tool set station

    DOE Patents [OSTI]

    Byers, M.E.

    1988-02-22

    An apparatus is provided for the precise setting to zero of electrically conductive cutting tools used in the machining of work pieces. An electrically conductive cylindrical pin, tapered at one end to a small flat, rests in a vee-shaped channel in a base so that its longitudinal axis is parallel to the longitudinal axis of the machine's spindle. Electronic apparatus is connected between the cylindrical pin and the electrically conductive cutting tool to produce a detectable signal when contact between tool and pin is made. The axes of the machine are set to zero by contact between the cutting tool and the sides, end or top of the cylindrical pin. Upon contact, an electrical circuit is completed, and the detectable signal is produced. The tool can then be set to zero for that axis. Should the tool contact the cylindrical pin with too much force, the cylindrical pin would be harmlessly dislodged from the vee-shaped channel, preventing damage either to the cutting tool or the cylindrical pin. 5 figs.

  19. Resistive switching phenomena: A review of statistical physics...

    Office of Scientific and Technical Information (OSTI)

    Resistive switching phenomena: A review of statistical physics approaches Citation Details ... Title: Resistive switching phenomena: A review of statistical physics approaches Authors: ...

  20. Robust Diamond-Based RF Switch Yields Enhanced Communication...

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

    Robust Diamond-Based RF Switch Yields Enhanced Communication Capabilities Technology available for licesning: A radio frequency (RF) microelectromechanical system (MEMS) switch...

  1. Sub-picosecond optical switching with a negative index metamaterial...

    Office of Scientific and Technical Information (OSTI)

    Journal Article: Sub-picosecond optical switching with a negative index metamaterial Citation Details In-Document Search Title: Sub-picosecond optical switching with a negative...

  2. Adsorption and switching properties of a N-benzylideneaniline based molecular switch on a Au(111) surface

    SciTech Connect (OSTI)

    Ovari, Laszlo; Luo, Ying; Haag, Rainer; Leyssner, Felix; Tegeder, Petra; Wolf, Martin

    2010-07-28

    High resolution electron energy loss spectroscopy has been employed to analyze the adsorption geometry and the photoisomerization ability of the molecular switch carboxy-benzylideneaniline (CBA) adsorbed on Au(111). CBA on Au(111) adopts a planar (trans) configuration in the first monolayer (ML) as well as for higher coverages (up to 6 ML), in contrast to the strongly nonplanar geometry of the molecule in solution. Illumination with UV light of CBA in direct contact with the Au(111) surface ({<=}1 ML) caused no changes in the vibrational structure, whereas at higher coverages (>1 ML) pronounced modifications of vibrational features were observed, which we assign to a trans{yields}cis isomerization. Thermal activation induced the back reaction to trans-CBA. We propose that the photoisomerization is driven by a direct (intramolecular) electronic excitation of the adsorbed CBA molecules in the second ML (and above) analogous to CBA in the liquid phase.

  3. Help:Contacts | Open Energy Information

    Open Energy Info (EERE)

    1.1 Uses of Contacts 1.2 Adding Contacts 1.3 Edit existing Contacts 1.4 Remove a Contact 1.5 Example in Use 1.6 Documentation 1.6.1 Parameters 1.6.2 Dependencies 1.6.3 Usage...

  4. Collegiate Wind Competition Contacts | Department of Energy

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

    Contacts Collegiate Wind Competition Contacts Contact information for the Collegiate Wind Competition and its support staff are listed below. Collegiate Wind Competition Project Coordinator Elise DeGeorge elise.degeorge@nrel.gov 303-384-7136 Website contact Wind Tunnel Specifications

  5. Energy Materials Network Contacts | Department of Energy

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

    Contacts Energy Materials Network Contacts If you have questions about lab capabilities in a specific area of energy materials R&D, or if you have media questions related to a particular EMN consortium, please contact the appropriate EMN consortia below. LightMat Email: contact@lightmat.org Call: 509-375-3822 Visit www.lightmat.org for more contact information. ElectroCat Email: contact@electrocat.org Visit www.electrocat.org for more contact information. For media questions related to EMN,

  6. Electrically Switched Cesium Ion Exchange

    SciTech Connect (OSTI)

    JPH Sukamto; ML Lilga; RK Orth

    1998-10-23

    This report discusses the results of work to develop Electrically Switched Ion Exchange (ESIX) for separations of ions from waste streams relevant to DOE site clean-up. ESIX combines ion exchange and electrochemistry to provide a selective, reversible method for radionuclide separation that lowers costs and minimizes secondary waste generation typically associated with conventional ion exchange. In the ESIX process, an electroactive ion exchange film is deposited onto. a high surface area electrode, and ion uptake and elution are controlled directly by modulating the potential of the film. As a result, the production of secondary waste is minimized, since the large volumes of solution associated with elution, wash, and regeneration cycles typical of standard ion exchange are not needed for the ESIX process. The document is presented in two parts: Part I, the Summary Report, discusses the objectives of the project, describes the ESIX concept and the approach taken, and summarizes the major results; Part II, the Technology Description, provides a technical description of the experimental procedures and in-depth discussions on modeling, case studies, and cost comparisons between ESIX and currently used technologies.

  7. Improved Electrical Contact For Dowhhole Drilling Networks

    DOE Patents [OSTI]

    Hall, David R.; Hall, Jr., H. Tracy; Pixton, David S.; Dahlgren, Scott; Fox, Joe; Sneddon, Cameron

    2005-08-16

    An electrical contact system for transmitting information across tool joints while minimizing signal reflections that occur at the tool joints includes a first electrical contact comprising an annular resilient material. An annular conductor is embedded within the annular resilient material and has a surface exposed from the annular resilient material. A second electrical contact is provided that is substantially equal to the first electrical contact. Likewise, the second electrical contact has an annular resilient material and an annular conductor. The two electrical contacts configured to contact one another such that the annular conductors of each come into physical contact. The annular resilient materials of each electrical contact each have dielectric characteristics and dimensions that are adjusted to provide desired impedance to the electrical contacts.

  8. Contact OSUR Program | Princeton Plasma Physics Lab

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

    Science Education Outreach Efforts Graduate Programs Off Site University Research (OSUR) Purpose PPPL Scientific and Engineering Capabilities Examples of OSUR Assisted Projects Contact OSUR Program Organization Contact Us Science Education Outreach Efforts Graduate Programs Off Site University Research (OSUR) Purpose PPPL Scientific and Engineering Capabilities Examples of OSUR Assisted Projects Contact OSUR Program Contact OSUR Program Contact OSUR Program The Off-Site University program is

  9. VPP POINTS OF CONTACT | Department of Energy

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

    POINTS OF CONTACT VPP POINTS OF CONTACT July 9, 2015 The VPP Points of Contact document provides a current listing of all current DOE VPP participants Points of Contact for both Federal and Contractor positions. PDF icon VPP Points of Contact - July 9, 2015 More Documents & Publications 2009 Voluntary Protection Programs Participants' Association (VPPPA) Presentation: Conducting your Annual VPP Self Assessment 2009 Voluntary Protection Programs Participants' Association (VPPPA) Presentaton:

  10. Federal NEPA Contacts | Department of Energy

    Office of Environmental Management (EM)

    NEPA Contacts Federal NEPA Contacts CEQ and most Federal agencies identify primary points of contact for NEPA compliance. Normally a senior environmental professional, environmental law attorney, or member of agency leadership, these contacts are responsible for broad oversight of NEPA compliance within their Executive Branch Office, Department, or Agency. Click below for information on both the NEPA contact and the office responsible for NEPA oversight within their organization. PDF icon

  11. DOE Employee Concerns Program (ECP) Contact List | Department...

    Energy Savers [EERE]

    DOE Employee Concerns Program (ECP) Contact List DOE Employee Concerns Program (ECP) Contact List DOE Employee Concerns Program (ECP) Contact List PDF icon ECP Contact List May...

  12. contacts | netl.doe.gov

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

    contacts Non-Fossil Energy Research Director, Office of Energy Project Management Charles Zeh 304-285-4265 Deputy Director, Office of Energy Project Management Robert Bedick 304-285-4505 Director, Buildings & Efficiency Technologies James Ferguson 412-386-6043 Director, Power & Vehicles Technologies Hank Hinkle 304-285-6545 Director, Energy Delivery Technologies Eddie Christy 304-285-4604 Senior Energy Analyst, Smart Grid Steven Bossart 304-285-4643

  13. Contacts | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Contacts | National Nuclear Security Administration Facebook Twitter Youtube Flickr RSS People Mission Managing the Stockpile Preventing Proliferation Powering the Nuclear Navy Emergency Response Recapitalizing Our Infrastructure Countering Nuclear Terrorism About Our Programs Our History Who We Are Our Leadership Our Locations Budget Our Operations Library Bios Congressional Testimony Fact Sheets Newsletters Press Releases Photo Gallery Jobs Apply for Our Jobs Our Jobs Working at NNSA Blog Home

  14. Contact Us | Department of Energy

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

    Us Contact Us For general information about the Department of Energy: Phone: 202-586-5000 For more information about information technology and the OCIO: Phone: 202-586-0166 Fax: 202-586-7966 For information for Small Business vendors and contractors: Phone: 301-903-4831 For Hearing and/or Speech Impaired: Telephone Communication For technical assistance: CIO Webmaster Email: cio.webmaster@hq.doe.gov

  15. Script for Monitoring Infiniband Switch Links

    Energy Science and Technology Software Center (OSTI)

    2015-09-08

    This script ingests a configuration file and parses it to determine an Infiniband network topology, specifically the port information for switches. It then loops over the fabric to determine which, if any, ports do not meet their desired configuration.

  16. Direct-Write Contacts: Metallization and Contact Formation; Preprint

    SciTech Connect (OSTI)

    van Hest, M. F. A. M.; Curtis, C. J.; Miedaner, A.; Pasquarelli, R. M.; Kaydonova, T.; Hersh, P.; Ginley, D. S.

    2008-05-01

    Using direct-write approaches in photovoltaics for metallization and contact formation can significantly reduce the cost per watt of producing photovoltaic devices. Inks have been developed for various materials, such as Ag, Cu, Ni and Al, which can be used to inkjet print metallizations for various kinds of photovoltaic devices. Use of these inks results in metallization with resistivities close to those of bulk materials. By means of inkjet printing a metallization grid can be printed with better resolution, i.e. smaller lines, than screen-printing. Also inks have been developed to deposit transparent conductive oxide films by means of ultrasonic spraying.

  17. Alternative Fuels Data Center: Colonial Williamsburg Switches to

    Alternative Fuels and Advanced Vehicles Data Center [Office of Energy Efficiency and Renewable Energy (EERE)]

    Alternative Transportation Colonial Williamsburg Switches to Alternative Transportation to someone by E-mail Share Alternative Fuels Data Center: Colonial Williamsburg Switches to Alternative Transportation on Facebook Tweet about Alternative Fuels Data Center: Colonial Williamsburg Switches to Alternative Transportation on Twitter Bookmark Alternative Fuels Data Center: Colonial Williamsburg Switches to Alternative Transportation on Google Bookmark Alternative Fuels Data Center: Colonial

  18. Solar cell contact formation using laser ablation

    DOE Patents [OSTI]

    Harley, Gabriel; Smith, David D.; Cousins, Peter John

    2014-07-22

    The formation of solar cell contacts using a laser is described. A method of fabricating a back-contact solar cell includes forming a poly-crystalline material layer above a single-crystalline substrate. The method also includes forming a dielectric material stack above the poly-crystalline material layer. The method also includes forming, by laser ablation, a plurality of contacts holes in the dielectric material stack, each of the contact holes exposing a portion of the poly-crystalline materiat layer; and forming conductive contacts in the plurality of contact holes.

  19. Solar cell contact formation using laser ablation

    DOE Patents [OSTI]

    Harley, Gabriel; Smith, David D.; Cousins, Peter John

    2015-07-21

    The formation of solar cell contacts using a laser is described. A method of fabricating a back-contact solar cell includes forming a poly-crystalline material layer above a single-crystalline substrate. The method also includes forming a dielectric material stack above the poly-crystalline material layer. The method also includes forming, by laser ablation, a plurality of contacts holes in the dielectric material stack, each of the contact holes exposing a portion of the poly-crystalline material layer; and forming conductive contacts in the plurality of contact holes.

  20. Solar cell contact formation using laser ablation

    DOE Patents [OSTI]

    Harley, Gabriel; Smith, David; Cousins, Peter

    2012-12-04

    The formation of solar cell contacts using a laser is described. A method of fabricating a back-contact solar cell includes forming a poly-crystalline material layer above a single-crystalline substrate. The method also includes forming a dielectric material stack above the poly-crystalline material layer. The method also includes forming, by laser ablation, a plurality of contacts holes in the dielectric material stack, each of the contact holes exposing a portion of the poly-crystalline material layer; and forming conductive contacts in the plurality of contact holes.

  1. contacts | netl.doe.gov

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

    Contacts Shailesh Vora Fuel Cells Technology Manager U.S. Department of Energy National Energy Technology Laboratory P.O. Box 10940 626 Cochrans Mill Road Pittsburgh, PA 15236-0940 Phone: 412-386-7515 Email: shailesh.vora@netl.doe.gov Heather Quedenfeld Advanced Energy Systems Division Director U.S. Department of Energy National Energy Technology Laboratory P.O. Box 10940 626 Cochrans Mill Road Pittsburgh, PA 15236-0940 Phone: 412-386-5781 Email: heather.quedenfeld@netl.doe.gov Bhima Sastri

  2. Contact Us | The Ames Laboratory

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

    Contact Us Department Manager: Doug Hoenig Room 158 Metals Development Building 294-0930 hoenig@ameslab.gov Departmental Office Cindy Marquardt Room 158B Metals Developmet Building 294-3756 cmarquardt@ameslab.gov Maintenance Requests for facilities maintenance or repairs as well as safety concerns can be submitted by email to fixit@ameslab.gov, by fax to 294-0568, or by phone to 294-3756. Custodial Requests for cleaning, extra trash collection, or other custodial services can be submitted by

  3. L Contact sro | Open Energy Information

    Open Energy Info (EERE)

    sro Jump to: navigation, search Name: L-Contact sro Place: Praha 4, Czech Republic Zip: 140 00 Product: Czech developer of PV projects in the Czech Republic. References: L-Contact...

  4. Clean Cities Program Contacts (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-03-01

    This fact sheet provides contact information for program staff of the U.S. Department of Energy's Clean Cities program, as well as contact information for the nearly 100 local Clean Cities coalitions across the country.

  5. Contact Us | Center for Energy Efficient Materials

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

    Contact Us Map to CEEM View Full Size Map For more information, please contact: John Bowers, Director bowers at ece dot ucsb dot edu 805-893-8447 David H. Auston, Executive...

  6. SciTech Connect: Contact Us

    Office of Scientific and Technical Information (OSTI)

    Contact Us Contact Us If you have a question or comment about SciTech Connect, check to see if it is on our list of frequently asked questions. If your question isn't answered...

  7. Contact Us | Y-12 National Security Complex

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

    Contact Us Contact Us Mail and delivery address information: Y-12 National Security Complex P.O. Box 2009 Oak Ridge, TN 37831-8245* Non-mail deliveries: Bear Creek Road P.O. Box...

  8. Contact Us | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    NNSA Production Office / Contact Us Contact Us NPO Public Affairs Manager Steven Wyatt (865) 576-9918 NPO Mailing Address NNSA Production Office PO Box 2050 Oak Ridge, TN 37831 Fax Number (865) 576-1237

  9. Field Facilities Contacts for Printing and Mail

    Energy Savers [EERE]

    Field Facilities Contacts for Printing and Mail Print and Mail Contacts Site Printing Contact Mail Contact NNSA, Albuquerque Deborah Miller (505) 845-6049 Thomas H. Clinkenbeard NNSA Service Center PO Box 5400 Albuquerque, NM 87185-5400 (505) 845-4602 tclinkenbeard@doeal.gov (mailto:tclinkenbeard@doeal.gov) Argonne National Laboratory Doreen Schoening Argonne National Laboratory U.S. Department of Energy 9700 South Cass Avenue Blvd 340 Lemonmt, IL 60439 (630) 840-6399 dschoening@anl.gov

  10. ORISE Science Education Programs: Contact Us

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

    Contact Us David Duncan Director, Scientific Assessment and Workforce Development Work: 865.576.3424 science.education@orau.org

  11. TEPP Points of Contact | Department of Energy

    Energy Savers [EERE]

    TEPP Points of Contact TEPP Points of Contact TEPP is a national program managed at a headquarters level and implemented through the TEPP Central Operations Center managed by Technical Resources Group, Inc. For additional information on the TEPP, or to find out how you can obtain TEPP materials or schedule a class, contact either the HQ Program Manager or TEPP Central Operations. EM Contact EM Headquarters Program Manager Ellen Edge, Office of Transportation Ellen.Edge@em.doe.gov U.S. Department

  12. Accommodation Program Contacts | Department of Energy

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

    Accommodation Program Contacts Accommodation Program Contacts click-978024_960_720.png Section 508 Coordinator: For information with regard to DOE Section 508 Policy and Guidance, contact DOE Section 508 Coordinator: Teddy Dyer DOE Section 508 Coordinator Chief Information Office, Office of IT Policy and Management (IM-22) (202) 586-9698 teddy.dyer@hq.doe.gov DOE Headquarters Reasonable Accommodation Coordinator: The US Department of Energy (DOE) point of contact for DOE employees wishing to

  13. Contact the GTT | Department of Energy

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

    Contact the GTT Contact the GTT Contact the GTT General Interest, Comments or Feedback? The DOE Grid Tech Team is intended to both help coordinate efforts from within DOE, and also be a conduit for information and collaboration with those outside of DOE. As events and documents are posted to this website, we welcome your comments and interest in the GTT's efforts. Please feel free to contact the GTT via email: gridtechteam@hq.doe.gov.

  14. Privacy Act Officers Contact List | Department of Energy

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

    Privacy Act Officers Contact List Privacy Act Officers Contact List File Privacy Act Officers Contact List.docx More Documents & Publications Technical Standards Managers Contact List DOE-TSL-2-2002 DOE Employee Concerns Program Contact List

  15. DOE - NNSA/NFO -- FRMAC Contact Information

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

    Contact Information NNSA/NFO Language Options U.S. DOE/NNSA - Nevada Field Office FRMAC Contact Information For any distribution of FRMAC Manuals, FRMAC CD's, FRMAC Conference Calls, FRMAC Events Calendar, or CMweb please contact Elizabeth Becerril, becerre@nv.doe.gov. ^ TOP ^ Print Icon PRINT PAGE | Email Icon EMAIL PAGE Date Last Modified: November 18

  16. Interdigitated Electrical Contacts for Low Electronic Mobility

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

    Semiconductor Photovoltaic Devices - Energy Innovation Portal Solar Photovoltaic Solar Photovoltaic Find More Like This Return to Search Interdigitated Electrical Contacts for Low Electronic Mobility Semiconductor Photovoltaic Devices Brookhaven National Laboratory Contact BNL About This Technology Technology Marketing Summary Structures useful for forming contacts to materials having low charge carrier mobility are described. Methods for their formation and use are also described. These

  17. National Laboratory Contacts | Department of Energy

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

    Laboratory Contacts National Laboratory Contacts The Geothermal Technologies Office works closely with several DOE national laboratories in managing and contributing to research and development projects. Below are the primary contacts at these laboratories. Laboratory Name Idaho National Laboratory Greg Mines, Lead Manager Lawrence Berkeley National Laboratory Mack Kennedy, Lead Scientist Lawrence Livermore National Laboratory Jeff Roberts, Lead Scientist National Renewable Energy Laboratory Tom

  18. Uniform Methods Project Contacts | Department of Energy

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

    » Uniform Methods Project Contacts Uniform Methods Project Contacts The primary contacts for the Uniform Methods Project are below. Send comments, questions, and feedback to ump@ee.doe.gov. U.S. Department of Energy Michael Li National Renewable Energy Laboratory Dan Beckley Chuck Kurnik

  19. Compact high voltage solid state switch

    DOE Patents [OSTI]

    Glidden, Steven C.

    2003-09-23

    A compact, solid state, high voltage switch capable of high conduction current with a high rate of current risetime (high di/dt) that can be used to replace thyratrons in existing and new applications. The switch has multiple thyristors packaged in a single enclosure. Each thyristor has its own gate drive circuit that circuit obtains its energy from the energy that is being switched in the main circuit. The gate drives are triggered with a low voltage, low current pulse isolated by a small inexpensive transformer. The gate circuits can also be triggered with an optical signal, eliminating the trigger transformer altogether. This approach makes it easier to connect many thyristors in series to obtain the hold off voltages of greater than 80 kV.

  20. Magnetic switch for reactor control rod

    DOE Patents [OSTI]

    Germer, John H. (San Jose, CA)

    1986-01-01

    A magnetic reed switch assembly for activating an electromagnetic grapple utilized to hold a control rod in position above a reactor core. In normal operation the magnetic field of a permanent magnet is short-circuited by a magnetic shunt, diverting the magnetic field away from the reed switch. The magnetic shunt is made of a material having a Curie-point at the desired release temperature. Above that temperature the material loses its ferromagnetic properties, and the magnetic path is diverted to the reed switch which closes and short-circuits the control circuit for the control rod electromagnetic grapple which allows the control rod to drop into the reactor core for controlling the reactivity of the core.

  1. Micro electro mechanical system optical switching

    DOE Patents [OSTI]

    Thorson, Kevin J; Stevens, Rick C; Kryzak, Charles J; Leininger, Brian S; Kornrumpf, William P; Forman, Glenn A; Iannotti, Joseph A; Spahn, Olga B; Cowan, William D; Dagel, Daryl J

    2013-12-17

    The present disclosure includes apparatus, system, and method embodiments that provide micro electo mechanical system optical switching and methods of manufacturing switches. For example, one optical switch embodiment includes at least one micro electro mechanical system type pivot mirror structure disposed along a path of an optical signal, the structure having a mirror and an actuator, and the mirror having a pivot axis along a first edge and having a second edge rotatable with respect to the pivot axis, the mirror being capable of and arranged to be actuated to pivot betweeen a position parallel to a plane of an optical signal and a position substantially normal to the plane of the optical signal.

  2. Nanoeletromechanical switch and logic circuits formed therefrom

    DOE Patents [OSTI]

    Nordquist, Christopher D. (Albuquerque, NM); Czaplewski, David A. (Albuquerque, NM)

    2010-05-18

    A nanoelectromechanical (NEM) switch is formed on a substrate with a source electrode containing a suspended electrically-conductive beam which is anchored to the substrate at each end. This beam, which can be formed of ruthenium, bows laterally in response to a voltage applied between a pair of gate electrodes and the source electrode to form an electrical connection between the source electrode and a drain electrode located near a midpoint of the beam. Another pair of gate electrodes and another drain electrode can be located on an opposite side of the beam to allow for switching in an opposite direction. The NEM switch can be used to form digital logic circuits including NAND gates, NOR gates, programmable logic gates, and SRAM and DRAM memory cells which can be used in place of conventional CMOS circuits, or in combination therewith.

  3. Magnetic switch for reactor control rod. [LMFBR

    DOE Patents [OSTI]

    Germer, J.H.

    1982-09-30

    A magnetic reed switch assembly is described for activating an electromagnetic grapple utilized to hold a control rod in position above a reactor core. In normal operation the magnetic field of a permanent magnet is short-circuited by a magnetic shunt, diverting the magnetic field away from the reed switch. The magnetic shunt is made of a material having a Curie-point at the desired release temperature. Above that temperature the material loses its ferromagnetic properties, and the magnetic path is diverted to the reed switch which closes and short-circuits the control circuit for the control rod electro-magnetic grapple which allows the control rod to drop into the reactor core for controlling the reactivity of the core.

  4. Manufacturing fuel-switching capability, 1988

    SciTech Connect (OSTI)

    Not Available

    1991-09-01

    Historically, about one-third of all energy consumed in the United States has been used by manufacturers. About one-quarter of manufacturing energy is used as feedstocks and raw material inputs that are converted into nonenergy products; the remainder is used for its energy content. During 1988, the most recent year for which data are available, manufacturers consumed 15.5 quadrillion British thermal units (Btu) of energy to produce heat and power and to generate electricity. The manufacturing sector also has widespread capabilities to switch from one fuel to another for either economic or emergency reasons. There are numerous ways to define fuel switching. For the purposes of the Manufacturing Energy Consumption Survey (MECS), fuel switching is defined as the capability to substitute one energy source for another within 30 days with no significant modifications to the fuel-consuming equipment, while keeping production constant. Fuel-switching capability allows manufacturers substantial flexibility in choosing their mix of energy sources. The consumption of a given energy source can be maximized if all possible switching into that energy source takes place. The estimates in this report are based on data collected on the 1988 Manufacturing Energy Consumption Survey (MECS), Forms 846 (A through C). The EIA conducts this national sample survey of manufacturing energy consumption on a triennial basis. The MECS is the only comprehensive source of national-level data on energy-related information for the manufacturing industries. The MECS was first conducted in 1986 to collect data for 1985. This report presents information on the fuel-switching capabilities of manufacturers in 1988. This report is the second of a series based on the 1988 MECS. 8 figs., 31 tabs.

  5. Explosive-driven, high speed, arcless switch

    DOE Patents [OSTI]

    Skogmo, P.J.; Tucker, T.J.

    1987-07-14

    An explosive-actuated, fast-acting arcless switch contains a highly conductive foil to carry high currents positioned adjacent a dielectric surface within a casing. At one side of the foil opposite the dielectric surface is an explosive which, when detonated, drives the conductive foil against the dielectric surface. A pattern of grooves in the dielectric surface ruptures the foil to establish a rupture path having a pattern corresponding to the pattern of the grooves. The impedance of the ruptured foil is greater than that of the original foil to divert high current to a load. Planar and cylindrical embodiments of the switch are disclosed. 7 figs.

  6. Explosive-driven, high speed, arcless switch

    DOE Patents [OSTI]

    Skogmo, Phillip J. (Albuquerque, NM); Tucker, Tillman J. (Albuquerque, NM)

    1987-01-01

    An explosive-actuated, fast-acting arcless switch contains a highly conductive foil to carry high currents positioned adjacent a dielectric surface within a casing. At one side of the foil opposite the dielectric surface is an explosive which, when detonated, drives the conductive foil against the dielectric surface. A pattern of grooves in the dielectric surface ruptures the foil to establish a rupture path having a pattern corresponding to the pattern of the grooves. The impedance of the ruptured foil is greater than that of the original foil to divert high current to a load. Planar and cylindrical embodiments of the switch are disclosed.

  7. Optically triggered high voltage switch network and method for switching a high voltage

    DOE Patents [OSTI]

    El-Sharkawi, Mohamed A. (Renton, WA); Andexler, George (Everett, WA); Silberkleit, Lee I. (Mountlake Terrace, WA)

    1993-01-19

    An optically triggered solid state switch and method for switching a high voltage electrical current. A plurality of solid state switches (350) are connected in series for controlling electrical current flow between a compensation capacitor (112) and ground in a reactive power compensator (50, 50') that monitors the voltage and current flowing through each of three distribution lines (52a, 52b and 52c), which are supplying three-phase power to one or more inductive loads. An optical transmitter (100) controlled by the reactive power compensation system produces light pulses that are conveyed over optical fibers (102) to a switch driver (110') that includes a plurality of series connected optical triger circuits (288). Each of the optical trigger circuits controls a pair of the solid state switches and includes a plurality of series connected resistors (294, 326, 330, and 334) that equalize or balance the potential across the plurality of trigger circuits. The trigger circuits are connected to one of the distribution lines through a trigger capacitor (340). In each switch driver, the light signals activate a phototransistor (300) so that an electrical current flows from one of the energy reservoir capacitors through a pulse transformer (306) in the trigger circuit, producing gate signals that turn on the pair of serially connected solid state switches (350).

  8. Optically initiated silicon carbide high voltage switch

    DOE Patents [OSTI]

    Caporaso, George J. (Livermore, CA); Sampayan, Stephen E. (Manteca, CA); Sullivan, James S. (Livermore, CA); Sanders; David M. (Livermore, CA)

    2011-02-22

    An improved photoconductive switch having a SiC or other wide band gap substrate material, such as GaAs and field-grading liners composed of preferably SiN formed on the substrate adjacent the electrode perimeters or adjacent the substrate perimeters for grading the electric fields.

  9. Isolated and soft-switched power converter

    DOE Patents [OSTI]

    Peng, Fang Zheng (Knoxville, TN); Adams, Donald Joe (Knoxville, TN)

    2002-01-01

    An isolated and soft-switched power converter is used for DC/DC and DC/DC/AC power conversion. The power converter includes two resonant tank circuits coupled back-to-back through an isolation transformer. Each resonant tank circuit includes a pair of resonant capacitors connected in series as a resonant leg, a pair of tank capacitors connected in series as a tank leg, and a pair of switching devices with anti-parallel clamping diodes coupled in series as resonant switches and clamping devices for the resonant leg. The power converter is well suited for DC/DC and DC/DC/AC power conversion applications in which high-voltage isolation, DC to DC voltage boost, bidirectional power flow, and a minimal number of conventional switching components are important design objectives. For example, the power converter is especially well suited to electric vehicle applications and load-side electric generation and storage systems, and other applications in which these objectives are important. The power converter may be used for many different applications, including electric vehicles, hybrid combustion/electric vehicles, fuel-cell powered vehicles with low-voltage starting, remote power sources utilizing low-voltage DC power sources, such as photovoltaics and others, electric power backup systems, and load-side electric storage and generation systems.

  10. Q-Switched Raman laser system

    DOE Patents [OSTI]

    George, E. Victor (Livermore, CA)

    1985-01-01

    Method and apparatus for use of a Raman or Brillouin switch together with a conventional laser and a saturable absorber that is rapidly bleached at a predetermined frequency .nu.=.nu..sub.0, to ultimately produce a Raman or Brillouin pulse at frequency .nu.=.nu..sub.0 .+-..nu..sub.Stokes.

  11. Interconnecting network for switching data packets and method for switching data packets

    DOE Patents [OSTI]

    Benner, Alan Frederic; Minkenberg, Cyriel Johan Agnes; Stunkel, Craig Brian

    2010-05-25

    The interconnecting network for switching data packets, having data and flow control information, comprises a local packet switch element (S1) with local input buffers (I(1,1) . . . I(1,y)) for buffering the incoming data packets, a remote packet switch element (S2) with remote input buffers (I(2,1) . . . I(2,y)) for buffering the incoming data packets, and data lines (L) for interconnecting the local and the remote packet switch elements (S1, S2). The interconnecting network further comprises a local and a remote arbiter (A1, A2) which are connected via control lines (CL) to the input buffers (I(1,1) . . . I(1,y), I(2,1) . . . I(2,y)), and which are formed such that they can provide that the flow control information is transmitted via the data lines (L) and the control lines (CL).

  12. POINT OF CONTACT RESPONSIBILITIES FOR RECORDS MANAGEMENT | Department...

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

    POINT OF CONTACT RESPONSIBILITIES FOR RECORDS MANAGEMENT POINT OF CONTACT RESPONSIBILITIES FOR RECORDS MANAGEMENT A list of point of contact responsibilites for Records Management...

  13. OpenEI Contacts | OpenEI Community

    Open Energy Info (EERE)

    to improve efficiency and user experience. Contacts on OpenEI are designed to provide contact information for industry professionals or organization positions. Contact information...

  14. DOE Privacy Program Contact Listing as of September 21, 2010...

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

    DOE Privacy Program Contact Listing as of September 21, 2010 DOE Privacy Program Contact Listing as of September 21, 2010 More Documents & Publications Privacy Act Officers Contact...

  15. Category:RAPID Roadmap Contact Properties | Open Energy Information

    Open Energy Info (EERE)

    RAPID Roadmap Contact Properties Jump to: navigation, search This page contains properties that are used with Contacts to set RAPID Roadmap Section contact values, and provide that...

  16. Nanomechanical switch for integration with CMOS logic. (Journal...

    Office of Scientific and Technical Information (OSTI)

    United States Language: English Subject: 42 ENGINEERING; 77 NANOSCIENCE AND NANOTECHNOLOGY; FABRICATION; PERFORMANCE; SWITCHES; TESTING; NANOSTRUCTURES; DESIGN Word Cloud...

  17. EV Everywhere: Contact Us | Department of Energy

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

    EV Everywhere: Contact Us EV Everywhere: Contact Us EV Everywhere is an effort to increase the use of plug-in electric vehicles, led by the U.S. Department of Energy's Vehicle Technologies Office. For general questions about EVs or this website, email EV-Everywhere@ee.doe.gov. For information on workplace charging, please see the Workplace Charging Challenge's website. For technical questions about research and development on EVs, please contact a technical manager listed on the Vehicle

  18. GE Global Research Contact | GE Global Research

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

    Contact Us Looking for more details? Please contact one of these individuals or visit the Newsroom for the latest information. Home > About GE Global Research > Contact Us GE Global Research 1 Research Circle, Niskayuna, NY 12309, USA Todd Alhart +1.518.387.7914 todd.alhart@ge.com Communications and Public Relations GE Brazil Technology Center Rio de Janeiro, Brazil Natalia Albuquerque +55 21 3548-6193 natalia.albuquerque@ge.com Communications and Public Relations GE China Technology

  19. ARM - ARM Education and Outreach Contact Information

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

    HomeroomARM Education and Outreach Contact Information Outreach Home Room News Publications Traditional Knowledge Kiosks Barrow, Alaska Tropical Western Pacific Site Tours Contacts Students Study Hall About ARM Global Warming FAQ Just for Fun Meet our Friends Cool Sites Teachers Teachers' Toolbox Lesson Plans ARM Education and Outreach Contact Information Jim Mather ARM Climate Research Facility Technical Director Mailing Address Pacific Northwest National Laboratory P.O. Box 999 MS K9-38

  20. Contact Us | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Los Alamos Field Office / Contact Us Contact Us Contact the NNSA Los Alamos Field Office NNSA Los Alamos Field Office (NA-00-LA) 3747 West Jemez Road Los Alamos, NM 87544 (505) 667-6691 Please send any comments, questions, or feedback to Toni Chiri Featured Links LANL Phonebook National Nuclear Security Administration Los Alamos National Laboratory Los Alamos County USA Gov Department of Energy (DOE) New Mexico Environmental Department - LANL U.S. Department of Homeland Security

  1. Contact Technology Transitions | Department of Energy

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

    Contact Technology Transitions Contact Technology Transitions Please use this form to send us your comments, report problems, and/or ask questions about information on the Office of Technology Transition website. All entries on the form will go to the Office of Technology Transitions at the Department of Energy. If you wish to contact a specific laboratory, please do so directly on this page. Your Email Message Here * CAPTCHA This question is for testing whether you are a human visitor and to

  2. Contact Us | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Livermore Field Office / Contact Us Contact Us If you have questions about the activities at the Livermore Field Office, please contact the LFO Public Affairs at the following numbers: Media Inquiries: (925) 422-2028 Public Inquiries: (925) 422-2008 Emails may also be sent to the following: LSOPUBLICAFFAIRS@nnsa.doe.gov Mailing Address U.S. Department of Energy National Nuclear Security Administration Livermore Field Office P.O. Box 808, L-293 Livermore, CA 94551-0808

  3. Weatherization and Intergovernmental Program Contacts | Department of

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

    Energy You are here Home » About the Office » Weatherization and Intergovernmental Program Contacts Weatherization and Intergovernmental Program Contacts For information about how the Weatherization and Intergovernmental Programs Office is organized, see the organization chart. You can contact the office by email or via postal delivery at: U.S. Department of Energy Energy Efficiency and Renewable Energy 1000 Independence Ave, SW, Mail Stop EE-2K U.S. Department of Energy Washington, DC

  4. Ultrahigh density ferroelectric storage and lithography by high order ferroic switching

    DOE Patents [OSTI]

    Kalinin, Sergei V. (Knoxville, TN); Baddorf, Arthur P. (Knoxville, TN); Lee, Ho Nyung (Oak Ridge, TN); Shin, Junsoo (Knoxville, TN); Gruverman, Alexei L. (Raleigh, NC); Karapetian, Edgar (Malden, MA); Kachanov, Mark (Arlington, MA)

    2007-11-06

    A method for switching the direction of polarization in a relatively small domain in a thin-film ferroelectric material whose direction of polarization is oriented normal to the surface of the material involves a step of moving an electrically-chargeable tip into contact with the surface of the ferroelectric material so that the direction of polarization in a region adjacent the tip becomes oriented in a preselected direction relative to the surface of the ferroelectric material. The tip is then pressed against the surface of the ferroelectric material so that the direction of polarization of the ferroelectric material within the area of the ferroelectric material in contact with the tip is reversed under the combined effect of the compressive influence of the tip and electric bias.

  5. A New Class of Switched Reluctance Motors | Department of Energy

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

    Motors A New Class of Switched Reluctance Motors 2009 DOE Hydrogen Program and Vehicle Technologies Program Annual Merit Review and Peer Evaluation Meeting, May 18-22, 2009 -- Washington D.C. PDF icon apep_02_burress.pdf More Documents & Publications A New Class of Switched Reluctance Motors without Permanent Magnets A New Class of Switched Reluctance Motors without Permanent Magnets

  6. RF-MEMS capacitive switches with high reliability

    DOE Patents [OSTI]

    Goldsmith, Charles L.; Auciello, Orlando H.; Carlisle, John A.; Sampath, Suresh; Sumant, Anirudha V.; Carpick, Robert W.; Hwang, James; Mancini, Derrick C.; Gudeman, Chris

    2013-09-03

    A reliable long life RF-MEMS capacitive switch is provided with a dielectric layer comprising a "fast discharge diamond dielectric layer" and enabling rapid switch recovery, dielectric layer charging and discharging that is efficient and effective to enable RF-MEMS switch operation to greater than or equal to 100 billion cycles.

  7. coal contacts | netl.doe.gov

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

    coal contacts Strategic Center for Coal Director: Sean Plasynski 412-386-4867 Senior Management & Technical Advisor: Gregory Kawalkin 412-386-6135 Senior Management & Technical ...

  8. ARM - ARM Engineering and Operations Contacts

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

    Send ARM Engineering and Operations Contacts Technical Coordination Office Person Role Responsible Area PhoneEmail Jim Mather ARM Technical DirectorEngineering Manager...

  9. ORISE Health Communication and Training: Contact Us

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

    Contact Us Marcus Weseman Senior Associate Director; Health, Energy and Environment Work: 865.576.3420 health.communication@orau.org or technical.training@orau.org...

  10. Montana Watershed Protection Section Contacts Webpage | Open...

    Open Energy Info (EERE)

    contact information for the Watershed Protection Section of the Water Quality Planning Bureau. Author Montana Water Quality Planning Bureau Published State of Montana, Date Not...

  11. Clean Cities Program Contacts (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-10-01

    This fact sheet contains contact information for program staff and coalition coordinators for the U.S. Department of Energy's Clean Cities program.

  12. Clean Cities Program Contacts (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-01-01

    This fact sheet contains contact information for program staff and coalition coordinators for the U.S. Department of Energy's Clean Cities program.

  13. Clean Cities Program Contacts (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2012-09-01

    This fact sheet contains contact information for program staff and coalition coordinators for the U.S. Department of Energy's Clean Cities program.

  14. Contact the Sustainability Performance Office | Department of...

    Office of Environmental Management (EM)

    Performance Office Contact the Sustainability Performance Office The U.S. Department of Energy (DOE) Sustainability Performance Office (SPO) oversees departmental sustainability...

  15. Emergency Contacts - Combustion Energy Frontier Research Center

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

    Emergency Contacts Emergency Contacts EMERGENCY CONTACTS During your stay, in the event of an emergency, you may contact any of the following people: During the day (8:30AM - 4:30PM): Professor C.K. Law 609.258.5271 (O); 609.306.8450 (C) Michelle Horgan (CES) 609.258.6116 Conference & Events Services (CES) 609.258.6115 During the day and also after hours: Princeton University Department of Public Safety, 609.258.1000 Top © 2016 The Trustees of Princeton University Last update: January 20,

  16. Contact Hanford Fire Department - Hanford Site

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

    Department Contact Hanford Fire Department Hanford Fire Department Hanford Fire Department Home About Hanford Fire Department Fire and Life Safety Information Hot Links to Cool...

  17. MFRC Contact Us | The Ames Laboratory

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

    MFRC Contact Us Name: * Email: * Phone: Enter phone number in the format ()- Subject: * - Select - Academics Careers Casework Assistance Education General Inquiry Request...

  18. ORISE: Contact Us - Scientific Peer Review

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

    Contact Us Tony Lester Senior Associate Director, Scientific Assessment and Workforce Development Work: 865.576.3304 peerreview@orau.org...

  19. RAPID/Contact | Open Energy Information

    Open Energy Info (EERE)

    RAPIDContact < RAPID(Redirected from RAPID toolkitContact) Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission...

  20. Contact us | Energy Frontier Research Centers

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

    Contact us Home Director Donald T Morelli Professor of Materials Science and Director, MSUDOE Energy Frontier Research Center Department of Chemical Engineering & Materials...

  1. RAPID/Contact | Open Energy Information

    Open Energy Info (EERE)

    Contact < RAPID Jump to: navigation, search RAPID Regulatory and Permitting Information Desktop Toolkit BETA About Bulk Transmission Geothermal Hydropower Solar Tools Contribute...

  2. LEDSGP/contact | Open Energy Information

    Open Energy Info (EERE)

    contact < LEDSGP(Redirected from LEDSGPaboutcontacts) Jump to: navigation, search Low Emission Development Strategies Global Partnership Advancing climate-resilient, low-emission...

  3. Template:ContactInfo | Open Energy Information

    Open Energy Info (EERE)

    designed for use by Companies, Organizations and Government Agencies. To specify the contact info for an organization, go to that organization's page and click Edit with Form....

  4. ARM - AMF2 Organization and Contact Information

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

    2009-2010 Shouxian, China, 2008 Black Forest, Germany, 2007 Niamey, Niger, 2006 Point Reyes, California, 2005 AMF2 Organization and Contact Information The Argonne AMF2...

  5. BISON Contact Improvements CASL FY14 Report

    SciTech Connect (OSTI)

    B. W. Spencer; J. D. Hales; D. R. Gaston; D. A. Karpeev; R. L. Williamson; S. R. Novascone; D. M. Perez; R. J. Gardner; K. A. Gamble

    2014-09-01

    The BISON code is the foundation for multiple fuel performance modeling efforts, and is cur- rently under heavy development. For a variety of fuel forms, the effects of heat conduction across a gap and mechanical contact between components of a fuel system are very significant. It is thus critical that BISON have robust capabilities for enforcement of thermal and mechanical contact. BISONs solver robustness has generally been quite good before mechanical contact between the fuel and cladding occurs, but there have been significant challenges obtaining converged so- lutions once that contact occurs and the solver begins to enforce mechanical contact constraints. During the current year, significant development effort has been focused on the enforcement of mechanical contact to provide improved solution robustness. In addition to this work to improve mechanical contact robustness, an investigation into ques- tionable results attributable to thermal contact has been performed. This investigation found that the order of integration typically used on the surfaces involved in thermal contact was not suffi- ciently high. To address this problem, a new option was provided to permit the use of a different integration order for surfaces, and new usage recommendations were provided.

  6. MaxxContact | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: MaxxContact Place: Wolfen, Saxony-Anhalt, Germany Zip: 6766 Product: Germany-based cable and wire company. The firm also produces...

  7. Phoenix Contact Gmbh | Open Energy Information

    Open Energy Info (EERE)

    Jump to: navigation, search Name: Phoenix Contact Gmbh Place: Blomberg, Lower Saxony, Germany Zip: 32825 Product: Germany-based firm in electrical connection, interface and...

  8. Methods of contacting substances and microsystem contactors

    DOE Patents [OSTI]

    TeGrotenhuis, Ward E [Kennewick, WA; Rassat, Scot D [Benton City, WA; Stenkamp, Victoria S [Richland, WA

    2005-05-22

    A microchannel contactor and methods of contacting substances in microchannel apparatus are described. Some preferred embodiments are combined with microchannel heat exchange.

  9. Golden Field Office Contacts | Department of Energy

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

    Golden Field Office » Golden Field Office Contacts Golden Field Office Contacts On this page you will find address and contact information for the Golden Field Office. Mailing Address U.S. Department of Energy Golden Field Office 15013 Denver West Parkway Golden, Colorado 80401 Main Number: 720-356-1800 Main Fax: 720-356-1750 Media Inquiries For media inquiries, please email the EERE communications team at EE.Media@ee.doe.gov. Golden Field Office Key Contacts Deputy Assistant Secretary For

  10. Contacts for Cybersecurity | Department of Energy

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

    Cybersecurity Contacts for Cybersecurity Office of the Associate CIO for Cybersecurity Office of the Chief Information Officer US Department of Energy 202-586-0166

  11. Contacts for Services | Department of Energy

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

    Contacts for Services Contacts for Services List of HQ Service Contacts Service / Function Contact Information BUILDING AND FACILITIES SERVICES Carpeting FORS: (202) 586-6100 E/M: FOR Fac Ops Helpdesk GTN: (301) 903-4005 E/M: GTN Fac Ops Helpdesk Link to Carpeting FAQs Elevators FORS: (202) 586-6100 E/M: FOR Fac Ops Helpdesk GTN: (301) 903-4005 E/M: GTN Fac Ops Helpdesk Furniture Repairs FORS: (202) 586-6508 GTN: (301) 903-5504 Heating and Air Conditioning, Plumbing, Electrical and Carpentry

  12. Contact resistance improvement by the modulation of peripheral length to area ratio of graphene contact pattern

    SciTech Connect (OSTI)

    Cho, Chunhum; Lee, Sangchul; Lee, Sang Kyung; Noh, Jin Woo; Park, Woojin; Lee, Young Gon; Hwang, Hyeon Jun; Ham, Moon-Ho; Kang, Chang Goo; Lee, Byoung Hun

    2015-05-25

    High contact resistance between graphene and metal is a major huddle for high performance electronic device applications of graphene. In this work, a method to improve the contact resistance of graphene is investigated by varying the ratio of peripheral length and area of graphene pattern under a metal contact. The contact resistance decreased to 0.8?k??m from 2.1?k??m as the peripheral length increased from 312 to 792??m. This improvement is attributed to the low resistivity of edge-contacted graphene, which is 8.1??10{sup 5} times lower than that of top-contacted graphene.

  13. Float level switch for a nuclear power plant containment vessel

    DOE Patents [OSTI]

    Powell, J.G.

    1993-11-16

    This invention is a float level switch used to sense rise or drop in water level in a containment vessel of a nuclear power plant during a loss of coolant accident. The essential components of the device are a guide tube, a reed switch inside the guide tube, a float containing a magnetic portion that activates a reed switch, and metal-sheathed, ceramic-insulated conductors connecting the reed switch to a monitoring system outside the containment vessel. Special materials and special sealing techniques prevent failure of components and allow the float level switch to be connected to a monitoring system outside the containment vessel. 1 figures.

  14. Float level switch for a nuclear power plant containment vessel

    DOE Patents [OSTI]

    Powell, James G. (Clifton Park, NY)

    1993-01-01

    This invention is a float level switch used to sense rise or drop in water level in a containment vessel of a nuclear power plant during a loss of coolant accident. The essential components of the device are a guide tube, a reed switch inside the guide tube, a float containing a magnetic portion that activates a reed switch, and metal-sheathed, ceramic-insulated conductors connecting the reed switch to a monitoring system outside the containment vessel. Special materials and special sealing techniques prevent failure of components and allow the float level switch to be connected to a monitoring system outside the containment vessel.

  15. Contact micromechanics in granular media with clay

    SciTech Connect (OSTI)

    Ita, S.L.

    1994-08-01

    Many granular materials, including sedimentary rocks and soils, contain clay particles in the pores, grain contacts, or matrix. The amount and location of the clays and fluids can influence the mechanical and hydraulic properties of the granular material. This research investigated the mechanical effects of clay at grain-to-grain contacts in the presence of different fluids. Laboratory seismic wave propagation tests were conducted at ultrasonic frequencies using spherical glass beads coated with Montmorillonite clay (SWy-1) onto which different fluids were adsorbed. For all bead samples, seismic velocity increased and attenuation decreased as the contact stiffnesses increased with increasing stress demonstrating that grain contacts control seismic transmission in poorly consolidated and unconsolidated granular material. Coating the beads with clay added stiffness and introduced viscosity to the mechanical contact properties that increased the velocity and attenuation of the propagating seismic wave. Clay-fluid interactions were studied by allowing the clay coating to absorb water, ethyl alcohol, and hexadecane. Increasing water amounts initially increased seismic attenuation due to clay swelling at the contacts. Attenuation decreased for higher water amounts where the clay exceeded the plastic limit and was forced from the contact areas into the surrounding open pore space during sample consolidation. This work investigates how clay located at grain contacts affects the micromechanical, particularly seismic, behavior of granular materials. The need for this work is shown by a review of the effects of clays on seismic wave propagation, laboratory measurements of attenuation in granular media, and proposed mechanisms for attenuation in granular media.

  16. PM Website Contact | Department of Energy

    Energy Savers [EERE]

    PM Website Contact PM Website Contact Use this form to send us your comments, report problems, and/or ask questions about information on the PM website. Your Email Message Here CAPTCHA This question is for testing whether you are a human visitor and to prevent automated spam submissions. Submit

  17. Energy Basics Website Contact | Department of Energy

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

    Energy Basics Website Contact Energy Basics Website Contact Use this form to send us your comments, report problems, and/or ask questions about information on the Energy Basics website. Your Email Message Here * CAPTCHA This question is for testing whether you are a human visitor and to prevent automated spam submissions. Submit

  18. Gas mixture for diffuse-discharge switch

    DOE Patents [OSTI]

    Christophorou, Loucas G. (Oak Ridge, TN); Carter, James G. (Knoxville, TN); Hunter, Scott R. (Oak Ridge, TN)

    1984-01-01

    Gaseous medium in a diffuse-discharge switch of a high-energy pulse generator is formed of argon combined with a compound selected from the group consisting of CF.sub.4, C.sub.2 F.sub.6, C.sub.3 F.sub.8, n-C.sub.4 F.sub.10, WF.sub.6, (CF.sub.3).sub.2 S and (CF.sub.3).sub.2 O.

  19. Multiple acousto-optic q-switch

    DOE Patents [OSTI]

    Deason, Vance A. (Idaho Falls, ID)

    1993-01-01

    An improved dynamic moire interferometer comprised of a lasing medium providing a plurality of beams of coherent light, a multiple q-switch producing multiple trains of 100,000 or more pulses per second, a combining means collimating multiple trains of pulses into substantially a single train and directing beams to specimen gratings affixed to a test material, and a controller, triggering and sequencing the emission of the pulses with the occurrence and recording of a dynamic loading event.

  20. Multiple acousto-optic q-switch

    DOE Patents [OSTI]

    Deason, Vance A.

    1993-12-07

    An improved dynamic moire interferometer comprised of a lasing medium providing a plurality of beams of coherent light, a multiple q-switch producing multiple trains of 100,000 or more pulses per second, a combining means collimating multiple trains of pulses into substantially a single train and directing beams to specimen gratings affixed to a test material, and a controller, triggering and sequencing the emission of the pulses with the occurrence and recording of a dynamic loading event.

  1. Gas mixture for diffuse-discharge switch

    DOE Patents [OSTI]

    Christophorou, L.G.; Carter, J.G.; Hunter, S.R.

    1982-08-31

    Gaseous medium in a diffuse-discharge switch of a high-energy pulse generator is formed of argon combined with a compound selected from the group consisting of CF/sub 4/, C/sub 2/F/sub 6/, C/sub 3/F/sub 8/, n-C/sub 4/F/sub 10/, WF/sub 6/, (CF/sub 3/)/sub 2/S and (CF/sub 3/)/sub 2/O.

  2. Switch Switch

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

    in LESCO 18 as a Transient Superconducting Phase is Formed Bill Schlotter or Josh Turner CXI L273 SPENCE,JOHN Dynamics of electron transfer: PSIferredoxin Sebastien Boutet...

  3. SAND contact in DYNA3D

    SciTech Connect (OSTI)

    Whirley, R.G.; Engelmann, B.E.

    1992-08-25

    This paper describes some recent developments in adaptive contact algorithms for the transient analysis of penetration and material failure in DYNA3D. A failure criterion is defined for volumes of potentially failing material on each side of a contact surface. As material within an element fails, the element is deleted from the calculation and the contact surface is adaptively redefined to include the newly exposed outer material boundary. This algorithm admits arbitrary combinations of shell and solid elements to allow modeling of composite or honeycomb structures. The algorithms and their efficiency are illustrated with several DYNA3D simulations and results are compared with experimental data.

  4. Algorithms for Contact in a Mulitphysics Environment

    Energy Science and Technology Software Center (OSTI)

    2001-12-19

    Many codes require either a contact capability or a need to determine geometric proximity of non-connected topological entities (which is a subset of what contact requires). ACME is a library to provide services to determine contact forces and/or geometric proximity interactions. This includes generic capabilities such as determining points in Cartesian volumes, finding faces in Cartesian volumes, etc. ACME can be run in single or multi-processor mode (the basic algorithms have been tested up tomore » 4500 processors).« less

  5. DOE Community Transition Contacts | Department of Energy

    Energy Savers [EERE]

    About Us » Contact Us » DOE Community Transition Contacts DOE Community Transition Contacts Headquarters David Geiser, Director Office of Legacy Management, LM-1 U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 (202) 586-8324 (202) 586-8403 (FAX) david.geiser@hq.doe.gov Field HANFORD Colleen French U.S. Department of Energy Richland Operations Office P.O. Box 550 A7-75 Richland, WA 99352 (509) 373-5985 (509) 373-1563 (FAX) colleen_c_french@rl.gov IDAHO NATIONAL

  6. DOE - NNSA/NFO -- Contact Us Information

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

    Contact Information NNSA/NFO Language Options U.S. DOE/NNSA - Nevada Field Office Nevada Field Office Contact Information Street Address: 232 Energy Way North Las Vegas, NV 89030 Mailing Address: U.S. Department of Energy National Nuclear Security Administration Nevada Field Office P.O. Box 98518 Las Vegas, NV 89193-8518 Phone: 702-295-3521 Fax: 702-295-0154 Email: PublicAffairs@nv.doe.gov You may also contact us through the Feedback Form Our policy is to reply to inquiries within 48 hours

  7. Contact Us | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Contact Us Contact Us NNSA The National Nuclear Security Administration is always happy to hear from those we are committed to serve as part of the nation's security. To send questions, comments or concerns to the Administration, please use the form below. For general information about NNSA, please feel free to contact us: Mailing Address National Nuclear Security Administration U.S. Department of Energy 1000 Independence Ave., S.W. Washington, DC 20585 Phone 1 (800) DIAL-DOE (1-800-342-5363) or

  8. Business Operations Contacts | Department of Energy

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

    Operations » Business Operations Contacts Business Operations Contacts If you have a question for the Office of Business Operations, you can use this contact information to reach the office you're interested in: Office of Budget EE-3B / Forrestal Building U.S. Department of Energy 1000 Independence Avenue, SW Washington, D.C. 20585-0121 Phone: 202-586-8302 Workforce Management Office EE-3A / Forrestal Building U.S. Department of Energy 1000 Independence Avenue, SW Washington, D.C. 20585-0121

  9. Strategic Programs Contacts | Department of Energy

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

    Strategic Programs Contacts Strategic Programs Contacts If you have a question for the Office of Strategic Programs, you can use this contact information to reach the office you're interested in: Technology-to-Market EE-13 / Forrestal Building U.S. Department of Energy 1000 Independence Avenue, SW Washington, D.C. 20585-0121 Policy Analysis EE-13 / Forrestal Building U.S. Department of Energy 1000 Independence Avenue, SW Washington, D.C. 20585 Phone: 202-586-9220 Stakeholder Engagement EE-13 /

  10. Evaluation of the electrical contact area in contact-mode scanning probe microscopy

    SciTech Connect (OSTI)

    Celano, Umberto E-mail: u.celano@gmail.com; Chintala, Ravi Chandra; Vandervorst, Wilfried; Hantschel, Thomas; Giammaria, Guido; Conard, Thierry; Bender, Hugo

    2015-06-07

    The tunneling current through an atomic force microscopy (AFM) tip is used to evaluate the effective electrical contact area, which exists between tip and sample in contact-AFM electrical measurements. A simple procedure for the evaluation of the effective electrical contact area is described using conductive atomic force microscopy (C-AFM) in combination with a thin dielectric. We characterize the electrical contact area for coated metal and doped-diamond tips operated at low force (<200 nN) in contact mode. In both cases, we observe that only a small fraction (<10?nm{sup 2}) of the physical contact (?100?nm{sup 2}) is effectively contributing to the transport phenomena. Assuming this reduced area is confined to the central area of the physical contact, these results explain the sub-10?nm electrical resolution observed in C-AFM measurements.

  11. Property:Geothermal/Contact | Open Energy Information

    Open Energy Info (EERE)

    to: navigation, search This is a property of type String. Pages using the property "GeothermalContact" Showing 25 pages using this property. (previous 25) (next 25) 4 4 UR Guest...

  12. Nanoparticle derived contacts for photovoltaic cells

    SciTech Connect (OSTI)

    Ginley, D.S.

    1999-10-20

    Contacts are becoming increasingly important as PV devices move to higher efficiency and lower cost. The authors present an approach to developing contacts using nanoparticle-based precursors. Both elemental, alloy and compound nanoparticles can be employed for contacts. Ink based approaches can be utilized at low temperatures and utilize direct write techniques such as ink jet and screen printing. The ability to control the composition of the nanoparticle allows improved control of the contact metallurgy and the potential for thermodynamically stable interfaces. A key requirement is the ability to control the interface between particles and between particles and the substrate. The authors illustrate some of these principals with recent results on Al, Cu and (Hg,Cu)Te. They show that for the elemental materials control of the surface can prevent oxide formation and act as glue to control the reactivity of the nanoparticles.

  13. Multi Contact AG | Open Energy Information

    Open Energy Info (EERE)

    firm in the field of renewable energy, produces Solarline - connector systems for photovoltaics. References: Multi-Contact AG1 This article is a stub. You can help OpenEI by...

  14. ORISE Climate and Atmospheric Research: Contact Us

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

    Contact Us Dr. Bruce Baker Director, NOAA/ARL/ATDD Work: 865.576.1233 Bruce.Baker@noaa.gov Location: 456 South Illinois Ave. P.O. Box 2456 Oak Ridge, TN 37831-2456

  15. Committees & Contacts | Linac Coherent Light Source

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

    Committees & Contacts LCLS Scientific Advisory Committee (SAC) LCLS Detector Advisory Committee (LDAC) LCLS Proposal Review Panel LCLS Users' Organization LCLS User Research Administration SLAC Directory Stanford Directory Lightsources.org NUFO

  16. Fermilab Office of General Counsel - Contact Us

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

    Contact Us General Counsel John Myer Deputy General Counsel Beth Fancsali Office Administrator Karen Bormann Administrative Support Georgianna Amundson Telephone Number (630) 840-3572 Facsimile Number (630) 840-8390 Department Office Wilson Hall, 4 West

  17. Clean Cities Program Contacts (Fact Sheet)

    SciTech Connect (OSTI)

    Not Available

    2013-12-01

    Contact information for the U.S. Department of Energy's Clean Cities program staff and for the coordinators of the nearly 100 local Clean Cities coalitions across the country.

  18. Front contact solar cell with formed emitter

    DOE Patents [OSTI]

    Cousins, Peter John

    2014-11-04

    A bipolar solar cell includes a backside junction formed by an N-type silicon substrate and a P-type polysilicon emitter formed on the backside of the solar cell. An antireflection layer may be formed on a textured front surface of the silicon substrate. A negative polarity metal contact on the front side of the solar cell makes an electrical connection to the substrate, while a positive polarity metal contact on the backside of the solar cell makes an electrical connection to the polysilicon emitter. An external electrical circuit may be connected to the negative and positive metal contacts to be powered by the solar cell. The positive polarity metal contact may form an infrared reflecting layer with an underlying dielectric layer for increased solar radiation collection.

  19. Front contact solar cell with formed emitter

    DOE Patents [OSTI]

    Cousins, Peter John (Menlo Park, CA)

    2012-07-17

    A bipolar solar cell includes a backside junction formed by an N-type silicon substrate and a P-type polysilicon emitter formed on the backside of the solar cell. An antireflection layer may be formed on a textured front surface of the silicon substrate. A negative polarity metal contact on the front side of the solar cell makes an electrical connection to the substrate, while a positive polarity metal contact on the backside of the solar cell makes an electrical connection to the polysilicon emitter. An external electrical circuit may be connected to the negative and positive metal contacts to be powered by the solar cell. The positive polarity metal contact may form an infrared reflecting layer with an underlying dielectric layer for increased solar radiation collection.

  20. Contact Us | Linac Coherent Light Source

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

    Contact Us Tel: 650-926-2246 | Fax: 650-926-3615 LCLSSLAC is located on 426 acres of Stanford University property, just three miles west of the main campus. The main entrance to...

  1. Contact Us - Radiation Effects Facility / Cyclotron Institute...

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

    Contact Us Staff Dr. Henry Clark Facility SupervisorAccelerator Physicist clark@comp.tamu.edu Dr. Vladimir Horvat Research Scientist V-Horvat@tamu.edu Bruce Hyman Research...

  2. CONTACT INFORMATION: Steve Karsjen Public Affairs

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

    water. Each stream travels through a separate set of tubes. The first stream comes in contact with the warm metal while the magnet is still located close by. This stream cools the...

  3. Contact Us | Mickey Leland Energy Fellowship (MLEF)

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

    Contact Us General QuestionsInformation Sandra Cortez mlef@hq.doe.gov U.S. Department of Energy 1000 Independence Ave., SW Washington, DC 20585 Phone: 301-903-7938 Technical...

  4. Contact Us | Stanford Synchrotron Radiation Lightsource

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

    Contact Us Stanford Synchrotron Radiation Lightsource SLAC National Accelerator Laboratory 2575 Sand Hill Road, MS 69 Menlo Park, CA 94025 Tel: 650-926-4000 Fax: 650-926-4100 SSRL...

  5. Contact Information | Princeton Plasma Physics Lab

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

    Contact Information Princeton Plasma Physics Laboratory P.O. Box 451 Princeton, NJ 08543-0451 GPS: 100 Stellarator Road Princeton, NJ 08540 U.S.A. Main Telephone: (609) 243-2000...

  6. ORISE: Contact Us | Worker Health Studies

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

    Contact Us General Information Work: 865.576.3115 occ.health@orise.orau.gov Dr. Donna Cragle Director; Health, Energy and Environment Work: 865.576.3115 Donna.Cragle@orau.org Dr....

  7. Initiatives and Projects Contacts | Department of Energy

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

    about any of the initiatives and projects listed on this site, you can use this contact information to reach the office you're interested in: State and Local Energy Efficiency...

  8. Email Contact for NREL.gov | NREL

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

    Email Contact for NREL.gov Use this form to send us your comments and questions, to report problems with the site, or to ask for help in finding information on our site. To...

  9. Microsoft Word - Current Contact Information2.docx

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

    Contact Information: Name: Date: Z Number: Home Phone: ( ) Cell Phone: ( ) Work Phone: ( ) Mailing Address: Street or PO Box_____________________________________________ Apt #____________ City___________________________ State_________________________ Zip Code_____________ Personal e-mail: Work e-mail:

  10. NUMERICAL MODELING OF CATHODE CONTACT MATERIAL DENSIFICATION

    SciTech Connect (OSTI)

    Koeppel, Brian J.; Liu, Wenning N.; Stephens, Elizabeth V.; Khaleel, Mohammad A.

    2011-11-01

    Numerical modeling was used to simulate the constrained sintering process of the cathode contact layer during assembly of solid oxide fuel cells (SOFCs). A finite element model based on the continuum theory for sintering of porous bodies was developed and used to investigate candidate low-temperature cathode contact materials. Constitutive parameters for various contact materials under investigation were estimated from dilatometry screening tests, and the influence of processing time, processing temperature, initial grain size, and applied compressive stress on the free sintering response was predicted for selected candidate materials. The densification behavior and generated stresses within a 5-cell planar SOFC stack during sintering, high temperature operation, and room temperature shutdown were predicted. Insufficient constrained densification was observed in the stack at the proposed heat treatment, but beneficial effects of reduced grain size, compressive stack preload, and reduced thermal expansion coefficient on the contact layer densification and stresses were observed.

  11. Contact Us | Y-12 National Security Complex

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

    Ray Smith Y-12 Historian The primary contact for more information about Y-12's history and the History Center in New Hope Center is our Y-12 historian. Ray Smith Work: 865.576.7781 ...

  12. Contacts for IT Planning | Department of Energy

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

    Planning Contacts for IT Planning LeAnn Oliver Associate Chief Information Officer for IT Policy and Governance Office of the Chief Information Officer US Department of Energy 202-586-0166 eCPIC

  13. SC e-journals Contact page

    Office of Scientific and Technical Information (OSTI)

    Contact Us If you have questions or are in need of assistance, please contact us at the following: E-Mail scejournals@osti.gov Phone: 865-576-1290 or 865-576-5600 Fax: 865-241-3826 Mailing Address U.S. Department of Energy Office of Science Office of Scientific and Technical Information 1 Science.gov Way Oak Ridge, TN 37830

  14. NREL: Energy Systems Integration Facility - Contact Us

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

    Contact Us For more information about the Energy Systems Integration Facility, contact us. Photo of four people standing in front of laboratory equipment. Connect and collaborate with NREL's world-class researchers at the Energy Systems Integration Facility. Media Inquiries Media inquiries should be directed to NREL Public Affairs. Capabilities and User Facility Program For information about Energy System Integration Facility capabilities and the Energy Systems Integration User Facility Program,

  15. ARM - ARM Engineering and Operations Contacts

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

    ARMARM Engineering and Operations Contacts About Become a User Recovery Act Mission FAQ Outreach Displays History Organization Participants Facility Statistics Forms Contacts Facility Documents ARM Management Plan (PDF, 1.3MB) Field Campaign Guidelines (PDF, 574KB) ARM Climate Research Facility Expansion Workshop (PDF, 1.46MB) Facility Activities ARM and the Recovery Act Contributions to International Polar Year Comments? We would love to hear from you! Send us a note below or call us at

  16. EERE Website Contact | Department of Energy

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

    EERE Website Contact EERE Website Contact Use this form to send us your comments, report problems, and/or ask questions about information on the EERE website. To report suspected fraud, waste, or abuse, including scams involving home energy service companies that contract with the Department of Energy, visit the Inspector General website. Your Email Message Here CAPTCHA This question is for testing whether you are a human visitor and to prevent automated spam submissions. Submit

  17. Energy Saver Website Contact | Department of Energy

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

    About Us » Energy Saver Website Contact Energy Saver Website Contact Use this form to send us your comments, report problems, and/or ask questions about information on the Energy Saver website. To report suspected fraud, waste, or abuse, including scams involving home energy service companies that contract with the Department of Energy, visit the Inspector General website. Your Email Message Here CAPTCHA This question is for testing whether you are a human visitor and to prevent automated spam

  18. Elastomeric organic material for switching application

    SciTech Connect (OSTI)

    Shiju, K. E-mail: pravymon@gmail.com Praveen, T. E-mail: pravymon@gmail.com Preedep, P. E-mail: pravymon@gmail.com

    2014-10-15

    Organic Electronic devices like OLED, Organic Solar Cells etc are promising as, cost effective alternatives to their inorganic counterparts due to various reasons. However the organic semiconductors currently available are not attractive with respect to their high cost and intricate synthesis protocols. Here we demonstrate that Natural Rubber has the potential to become a cost effective solution to this. Here an attempt has been made to fabricate iodine doped poly isoprene based switching device. In this work Poly methyl methacrylate is used as dielectric layer and Aluminium are employed as electrodes.

  19. GaAs photoconductive semiconductor switch

    DOE Patents [OSTI]

    Loubriel, Guillermo M. (Sandia Park, NM); Baca, Albert G. (Albuquerque, NM); Zutavern, Fred J. (Albuquerque, NM)

    1998-01-01

    A high gain, optically triggered, photoconductive semiconductor switch (PCSS) implemented in GaAs as a reverse-biased pin structure with a passivation layer above the intrinsic GaAs substrate in the gap between the two electrodes of the device. The reverse-biased configuration in combination with the addition of the passivation layer greatly reduces surface current leakage that has been a problem for prior PCSS devices and enables employment of the much less expensive and more reliable DC charging systems instead of the pulsed charging systems that needed to be used with prior PCSS devices.

  20. High voltage switches having one or more floating conductor layers

    DOE Patents [OSTI]

    Werne, Roger W.; Sampayan, Stephen; Harris, John Richardson

    2015-11-24

    This patent document discloses high voltage switches that include one or more electrically floating conductor layers that are isolated from one another in the dielectric medium between the top and bottom switch electrodes. The presence of the one or more electrically floating conductor layers between the top and bottom switch electrodes allow the dielectric medium between the top and bottom switch electrodes to exhibit a higher breakdown voltage than the breakdown voltage when the one or more electrically floating conductor layers are not present between the top and bottom switch electrodes. This increased breakdown voltage in the presence of one or more electrically floating conductor layers in a dielectric medium enables the switch to supply a higher voltage for various high voltage circuits and electric systems.

  1. Organic solid state switches incorporating porphyrin compounds and method for producing organic solid state optical switches

    DOE Patents [OSTI]

    Wasielewski, M.R.; Gaines, G.L.; Niemczyk, M.P.; Johnson, D.G.; Gosztola, D.J.; O`Neil, M.P.

    1996-07-23

    A light-intensity dependent molecular switch comprised of a compound which shuttles an electron or a plurality of electrons from a plurality of electron donors to an electron acceptor upon being stimulated with light of predetermined wavelengths, said donors selected from porphyrins and other compounds, and a method for making said compound are disclosed. 4 figs.

  2. Organic solid state switches incorporating porphyrin compounds and method for producing organic solid state optical switches

    DOE Patents [OSTI]

    Wasielewski, Michael R. (Naperville, IL); Gaines, George L. (River Forest, IL); Niemczyk, Mark P. (Wheaton, IL); Johnson, Douglas G. (Grayslake, IL); Gosztola, David J. (Bolingbrook, IL); O'Neil, Michael P. (San Leandro, CA)

    1996-01-01

    A light-intensity dependent molecular switch comprised of a compound which shuttles an electron or a plurality of electrons from a plurality of electron donors to an electron acceptor upon being stimulated with light of predetermined wavelengths, said donors selected from porphyrins and other compounds, and a method for making said compound.

  3. Organic solid state optical switches and method for producing organic solid state optical switches

    DOE Patents [OSTI]

    Wasielewski, M.R.; Gaines, G.L.; Niemczyk, M.P.; Johnson, D.G.; Gosztola, D.J.; O`Neil, M.P.

    1993-01-01

    This invention consists of a light-intensity dependent molecular switch comprised of a compound which shuttles an electron or a plurality of electrons from a plurality of electron donors to an electron acceptor upon being stimulated with light of predetermined wavelengths, and a method for making said compound.

  4. Current-level triggered plasma-opening switch

    DOE Patents [OSTI]

    Mendel, Clifford W. (Albuquerque, NM)

    1989-01-01

    An opening switch for very high power electrical pulses uses a slow magnetic field to confine a plasma across a gap between two electrodes. The plasma conducts the electric pulse across the gap while the switch is closed. A magnetic field generated by the pulse repels the slow magnetic field from the negative electrode to push the plasma from the electrode, opening the switch. A plurality of radial vanes may be used to enhance the slow magnetic field.

  5. Current-level triggered plasma-opening switch

    DOE Patents [OSTI]

    Mendel, C.W.

    1987-06-29

    An opening switch for very high power electrical pulses uses a slow magnetic field to confine a plasma across a gap between two electrodes. The plasma conducts the electric pulse across the gap while the switch is closed. A magnetic field generated by the pulse repels the slow magnetic field from the negative electrode to push the plasma from the electrode, opening the switch. A plurality of radial vanes may be used to enhance the slow magnetic field. 5 figs.

  6. Robust Diamond-Based RF Switch Yields Enhanced Communication Capabilities |

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

    Argonne National Laboratory Robust Diamond-Based RF Switch Yields Enhanced Communication Capabilities Technology available for licesning: A radio frequency (RF) microelectromechanical system (MEMS) switch based on ultrananocrystalline diamond (UNCD) as a dielectric. A specialized radio frequency (RF) micro-electromechanical system (MEMS) switch that promises enhanced capabilities for next-generation military and commercial communication systems Robust and reliable with extremely low power

  7. Fast high-temperature superconductor switch for high current applications

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect Fast high-temperature superconductor switch for high current applications Citation Details In-Document Search Title: Fast high-temperature superconductor switch for high current applications Reversible operation of a high current superconductor switch based on the quench of high-resistance second generation high temperature superconducting wire is demonstrated. The quench is induced by a burst of an ac field generated by an inductively coupled

  8. Massachusetts Schools Switch to Wood Pellets | Department of Energy

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

    Massachusetts Schools Switch to Wood Pellets Massachusetts Schools Switch to Wood Pellets August 20, 2015 - 5:22pm Addthis Art created by a student at John Briggs Elementary School as part of their recent Green Ceremony. John Briggs Elementary is one of the Massachusetts schools switching their heating fuel source from petroleum based fuels to wood pellets. Art created by a student at John Briggs Elementary School as part of their recent Green Ceremony. John Briggs Elementary is one of the

  9. Electrocaloric devices based on thini-film heat switches

    SciTech Connect (OSTI)

    Epstein, Richard I; Malloy, Kevin J

    2009-01-01

    We describe a new approach to refrigeration and electrical generation that exploits the attractive properties of thin films of electrocaloric materials. Layers of electrocaloric material coupled with thin-film heat switches can work as either refrigerators or electrical generators, depending on the phasing of the applied voltages and heat switching. With heat switches based on thin layers of liquid crystals, the efficiency of these thin-film heat engines can be at least as high as that of current thermoelectric devices. Advanced heat switches would enable thin-film heat engines to outperform conventional vaporcompression devices.

  10. Multi-gap high impedance plasma opening switch

    DOE Patents [OSTI]

    Mason, R.J.

    1996-10-22

    A high impedance plasma opening switch having an anode and a cathode and at least one additional electrode placed between the anode and cathode is disclosed. The presence of the additional electrodes leads to the creation of additional plasma gaps which are in series, increasing the net impedance of the switch. An equivalent effect can be obtained by using two or more conventional plasma switches with their plasma gaps wired in series. Higher impedance switches can provide high current and voltage to higher impedance loads such as plasma radiation sources. 12 figs.

  11. Multi-gap high impedance plasma opening switch

    DOE Patents [OSTI]

    Mason, Rodney J.

    1996-01-01

    A high impedance plasma opening switch having an anode and a cathode and at least one additional electrode placed between the anode and cathode. The presence of the additional electrodes leads to the creation of additional plasma gaps which are in series, increasing the net impedance of the switch. An equivalent effect can be obtained by using two or more conventional plasma switches with their plasma gaps wired in series. Higher impedance switches can provide high current and voltage to higher impedance loads such as plasma radiation sources.

  12. Commute Mode Switching Impact Tool | Department of Energy

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

    Commute Mode Switching Impact Tool. ghgcommutetool.xlsx More Documents & Publications Energy Intensity Indicators Data Residential Refrigerators-Freezers (Appendix A1)...

  13. DOE Employee Concerns Program Contact List | Department of Energy

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

    DOE Employee Concerns Program Contact List DOE Employee Concerns Program Contact List December 8, 2015 Employee Concerns Program contact list/information for DOE HQ, field offices and program offices. PDF icon DOE Employee Concerns Program Contact List More Documents & Publications DOE Employee Concerns Program (ECP) Contact List Employee Concerns Related Documents DOE-TSL-2-2002

  14. DNA-mediated excitonic upconversion FRET switching

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

    Kellis, Donald L.; Rehn, Sarah M.; Cannon, Brittany L.; Davis, Paul H.; Graugnard, Elton; Lee, Jeunghoon; Yurke, Bernard; Knowlton, William B.

    2015-11-17

    Excitonics is a rapidly expanding field of nanophotonics in which the harvesting of photons, ensuing creation and transport of excitons via Förster resonant energy transfer (FRET), and subsequent charge separation or photon emission has led to the demonstration of excitonic wires, switches, Boolean logic and light harvesting antennas for many applications. FRET funnels excitons down an energy gradient resulting in energy loss with each step along the pathway. Conversely, excitonic energy up conversion via up conversion nanoparticles (UCNPs), although currently inefficient, serves as an energy ratchet to boost the exciton energy. Although FRET-based up conversion has been demonstrated, it suffersmore » from low FRET efficiency and lacks the ability to modulate the FRET. We have engineered an up conversion FRET-based switch by combining lanthanide-doped UCNPs and fluorophores that demonstrates excitonic energy up conversion by nearly a factor of 2, an excited state donor to acceptor FRET efficiency of nearly 25%, and an acceptor fluorophore quantum efficiency that is close to unity. These findings offer a promising path for energy up conversion in nanophotonic applications including artificial light harvesting, excitonic circuits, photovoltaics, nanomedicine, and optoelectronics.« less

  15. DNA-mediated excitonic upconversion FRET switching

    SciTech Connect (OSTI)

    Kellis, Donald L.; Rehn, Sarah M.; Cannon, Brittany L.; Davis, Paul H.; Graugnard, Elton; Lee, Jeunghoon; Yurke, Bernard; Knowlton, William B.

    2015-11-17

    Excitonics is a rapidly expanding field of nanophotonics in which the harvesting of photons, ensuing creation and transport of excitons via Förster resonant energy transfer (FRET), and subsequent charge separation or photon emission has led to the demonstration of excitonic wires, switches, Boolean logic and light harvesting antennas for many applications. FRET funnels excitons down an energy gradient resulting in energy loss with each step along the pathway. Conversely, excitonic energy up conversion via up conversion nanoparticles (UCNPs), although currently inefficient, serves as an energy ratchet to boost the exciton energy. Although FRET-based up conversion has been demonstrated, it suffers from low FRET efficiency and lacks the ability to modulate the FRET. We have engineered an up conversion FRET-based switch by combining lanthanide-doped UCNPs and fluorophores that demonstrates excitonic energy up conversion by nearly a factor of 2, an excited state donor to acceptor FRET efficiency of nearly 25%, and an acceptor fluorophore quantum efficiency that is close to unity. These findings offer a promising path for energy up conversion in nanophotonic applications including artificial light harvesting, excitonic circuits, photovoltaics, nanomedicine, and optoelectronics.

  16. Model-based statistical estimation of Sandia RF ohmic switch dynamic operation form stroboscopic, x-ray imaging.

    SciTech Connect (OSTI)

    Diegert, Carl F.

    2006-12-01

    We define a new diagnostic method where computationally-intensive numerical solutions are used as an integral part of making difficult, non-contact, nanometer-scale measurements. The limited scope of this report comprises most of a due diligence investigation into implementing the new diagnostic for measuring dynamic operation of Sandia's RF Ohmic Switch. Our results are all positive, providing insight into how this switch deforms during normal operation. Future work should contribute important measurements on a variety of operating MEMS devices, with insights that are complimentary to those from measurements made using interferometry and laser Doppler methods. More generally, the work opens up a broad front of possibility where exploiting massive high-performance computers enable new measurements.

  17. Contact Interface Verification for DYNA3D Scenario 1: Basic Contact

    SciTech Connect (OSTI)

    McMichael, L D

    2006-05-10

    A suite of test problems has been developed to examine contact behavior within the nonlinear, three-dimensional, explicit finite element analysis (FEA) code DYNA3D (Lin, 2005). The test problems address the basic functionality of the contact algorithms, including the behavior of various kinematic, penalty, and Lagrangian enforcement formulations. The results from the DYNA3D analyses are compared to closed form solutions to verify the contact behavior. This work was performed as part of the Verification and Validation efforts of LLNL W Program within the NNSA's Advanced Simulation and Computing (ASC) Program. DYNA3D models the transient dynamic response of solids and structures including the interactions between disjoint bodies (parts). A wide variety of contact surfaces are available to represent the diverse interactions possible during an analysis, including relative motion (sliding), separation and gap closure (voids), and fixed relative position (tied). The problem geometry may be defined using a combination of element formulations, including one-dimensional beam and truss elements, two-dimensional shell elements, and three-dimensional solid elements. Consequently, it is necessary to consider various element interactions for each contact algorithm being verified. Most of the contact algorithms currently available in DYNA3D are examined; the exceptions are the Type 4--Single Surface Contact and Type 11--SAND algorithms. It is likely that these algorithms will be removed since their functionality is embodied in other, more robust, contact algorithms. The automatic contact algorithm is evaluated using the Type 12 interface. Two other variations of automatic contact, Type 13 and Type 14, offer additional means to adapt the interface domain, but share the same search and restoration algorithms as Type 12. The contact algorithms are summarized in Table 1. This report and associated test problems examine the scenario where one contact surface exists between two disjoint bodies. These test problems focus on whether a particular contact algorithm properly represents the interactions along the interface. A companion report (McMichael, 2006) and test problems address the multi-contact scenario in which multiple bodies interact with each other via multiple interfaces. The multi-contact test problems examine whether any ordering issues exist in the contact logic. The test problems are analyzed using version 5.2 (compiled on 12/22/2005) of DYNA3D. The analytical results are used to form baseline solutions for subsequent regression testing.

  18. Contact > Us > The Energy Materials Center at Cornell

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

    Contact In This Section Home Research People Partnerships News + Events Contact Contact emc2 This is the content that will appear before the form. Your Name: Your Email: Message...

  19. Fuel Cell Technologies Office Organization Chart and Contacts | Department

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

    of Energy Cell Technologies Office Organization Chart and Contacts Fuel Cell Technologies Office Organization Chart and Contacts Fuel Cell Technologies Office Organization Chart and Contacts Contact Information U.S. Department of Energy - Fuel Cell Technologies Office General Contact Information 202-586-3388 fuelcells@ee.doe.gov Office Contacts Director Sunita Satyapal 202-586-2336 Sunita.Satyapal@ee.doe.gov Operations Supervisor and Technology Acceleration Program Manager Rick Farmer

  20. DC switching regulated power supply for driving an inductive load

    DOE Patents [OSTI]

    Dyer, George R. (Norris, TN)

    1986-01-01

    A power supply for driving an inductive load current from a dc power supply hrough a regulator circuit including a bridge arrangement of diodes and switching transistors controlled by a servo controller which regulates switching in response to the load current to maintain a selected load current. First and second opposite legs of the bridge are formed by first and second parallel-connected transistor arrays, respectively, while the third and fourth legs of the bridge are formed by appropriately connected first and second parallel connected diode arrays, respectively. The regulator may be operated in three "stages" or modes: (1) For current runup in the load, both first and second transistor switch arrays are turned "on" and current is supplied to the load through both transistor arrays. (2) When load current reaches the desired level, the first switch is turned "off", and load current "flywheels" through the second switch array and the fourth leg diode array connecting the second switch array in series with the load. Current is maintained by alternating between modes 1 and 2 at a suitable duty cycle and switching rate set by the controller. (3) Rapid current rundown is accomplished by turning both switch arrays "off", allowing load current to be dumped back into the source through the third and fourth diode arrays connecting the source in series opposition with the load to recover energy from the inductive load. The three operating states are controlled automatically by the controller.

  1. DC switching regulated power supply for driving an inductive load

    DOE Patents [OSTI]

    Dyer, G.R.

    1983-11-29

    A dc switching regulated power supply for driving an inductive load is provided. The regulator basic circuit is a bridge arrangement of diodes and transistors. First and second opposite legs of the bridge are formed by first and second parallel-connected transistor arrays, respectively, while the third and fourth legs of the bridge are formed by appropriately connected first and second parallel connected diode arrays, respectively. A dc power supply is connected to the input of the bridge and the output is connected to the load. A servo controller is provided to control the switching rate of the transistors to maintain a desired current to the load. The regulator may be operated in three stages or modes: (1) for current runup in the load, both first and second transistor switch arrays are turned on and current is supplied to the load through both transistor arrays. (2) When load current reaches the desired level, the first switch is turned off, and load current flywheels through the second switch array and the fourth leg diode array connecting the second switch array in series with the load. Current is maintained by alternating between modes 1 and 2 at a suitable duty cycle and switching rate set by the controller. (3) Rapid current rundown is accomplished by turning both switch arrays off, allowing load current to be dumped back into the source through the third and fourth diode arrays connecting the source in series opposition with the load to recover energy from the inductive load.

  2. Property:RAPID/Contact/ID2/Position | Open Energy Information

    Open Energy Info (EERE)

    Division of Environmental Protection + NPDES Permitting Contact + Nevada Division of Water Resources + Groundwater Usage and Nonpoint Source Pollution Contact + New Mexico...

  3. Contact-Handled Transuranic Waste Authorized Methods for Payload...

    Office of Environmental Management (EM)

    Contact-Handled Transuranic Waste Authorized Methods for Payload Control (CH TRAMPAC) Contact-Handled Transuranic Waste Authorized Methods for Payload Control (CH TRAMPAC) This...

  4. Contact | U.S. DOE Office of Science (SC)

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    Contact Science Undergraduate Laboratory Internships (SULI) SULI Home Eligibility Benefits Participant Obligations How to Apply Key Dates Frequently Asked Questions Contact WDTS...

  5. Contact Us | ANSER Center | Argonne-Northwestern National Laboratory

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    Contact Us Home > Contact Us Visit the ANSER Center Map of Northwestern University Parking Map for NU Evanston Campus Visitor Parking Permits Map of Argonne Please direct general...

  6. Bureau of Indian Affairs Contact Information Website | Open Energy...

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    Contact Information Website Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Bureau of Indian Affairs Contact Information Website Abstract This website...

  7. EERE Information Center Contact, PIA, The Office of Energy Efficiency...

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    Information Center Contact, PIA, The Office of Energy Efficiency and Renewable Energy (EERE) EERE Information Center Contact, PIA, The Office of Energy Efficiency and Renewable...

  8. LEDSGP/Transportation Toolkit/Contact Us | Open Energy Information

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    Contact Us < LEDSGP | Transportation Toolkit Jump to: navigation, search LEDSGP Logo.png Transportation Toolkit Home Tools Training Request Assistance Contacts for the LEDS GP...

  9. Low Resistivity Contact to Iron-Pnicitide Superconductors - Energy...

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    Materials Advanced Materials Find More Like This Return to Search Low Resistivity Contact to Iron-Pnicitide Superconductors Ames Laboratory Contact AMES About This Technology...

  10. Recommendation 217: Stewardship Point of Contact for the Oak...

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    7: Stewardship Point of Contact for the Oak Ridge Reservation Recommendation 217: Stewardship Point of Contact for the Oak Ridge Reservation The Oak Ridge Site Specific Advisory...

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  12. Low Resistivity Contact to Iron-Pnicitide Superconductors - Energy...

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    Low Resistivity Contact to Iron-Pnicitide Superconductors Ames Laboratory Contact AMES About This Technology Technology Marketing Summary Superconductors are materials which carry...

  13. Bureau of Land Management - WO-210 - Contact Information | Open...

    Open Energy Info (EERE)

    navigation, search OpenEI Reference LibraryAdd to library Web Site: Bureau of Land Management - WO-210 - Contact Information Abstract This page provides contact information for...

  14. All fiber passively Q-switched laser

    DOE Patents [OSTI]

    Soh, Daniel B. S.; Bisson, Scott E

    2015-05-12

    Embodiments relate to an all fiber passively Q-switched laser. The laser includes a large core doped gain fiber having a first end. The large core doped gain fiber has a first core diameter. The laser includes a doped single mode fiber (saturable absorber) having a second core diameter that is smaller than the first core diameter. The laser includes a mode transformer positioned between a second end of the large core doped gain fiber and a first end of the single mode fiber. The mode transformer has a core diameter that transitions from the first core diameter to the second core diameter and filters out light modes not supported by the doped single mode fiber. The laser includes a laser cavity formed between a first reflector positioned adjacent the large core doped gain fiber and a second reflector positioned adjacent the doped single mode fiber.

  15. Permanent-magnet switched-flux machine

    DOE Patents [OSTI]

    Trzynadlowski, Andrzej M.; Qin, Ling

    2012-02-21

    A permanent-magnet switched-flux (PMSF) device has an outer rotor mounted to a shaft about a central axis extending axially through the PMSF device. First and second pluralities of permanent-magnets (PMs) are respectively mounted in first and second circles, radially outwardly in first and second transverse planes extending from first and second sections of the central axis adjacent to an inner surface of the outer rotor. An inner stator is coupled to the shaft and has i) a stator core having a core axis co-axial with the central axis; and ii) first and second pluralities of stator poles mounted in first and second circles, radially outwardly from the stator core axis in the first and second transverse planes. The first and second pluralities of PMs each include PMs of alternating polarity.

  16. High voltage photo switch package module

    DOE Patents [OSTI]

    Sullivan, James S; Sanders, David M; Hawkins, Steven A; Sampayan, Stephen E

    2014-02-18

    A photo-conductive switch package module having a photo-conductive substrate or wafer with opposing electrode-interface surfaces, and at least one light-input surface. First metallic layers are formed on the electrode-interface surfaces, and one or more optical waveguides having input and output ends are bonded to the substrate so that the output end of each waveguide is bonded to a corresponding one of the light-input surfaces of the photo-conductive substrate. This forms a waveguide-substrate interface for coupling light into the photo-conductive wafer. A dielectric material such as epoxy is then used to encapsulate the photo-conductive substrate and optical waveguide so that only the metallic layers and the input end of the optical waveguide are exposed. Second metallic layers are then formed on the first metallic layers so that the waveguide-substrate interface is positioned under the second metallic layers.

  17. Path planning during combustion mode switch

    DOE Patents [OSTI]

    Jiang, Li; Ravi, Nikhil

    2015-12-29

    Systems and methods are provided for transitioning between a first combustion mode and a second combustion mode in an internal combustion engine. A current operating point of the engine is identified and a target operating point for the internal combustion engine in the second combustion mode is also determined. A predefined optimized transition operating point is selected from memory. While operating in the first combustion mode, one or more engine actuator settings are adjusted to cause the operating point of the internal combustion engine to approach the selected optimized transition operating point. When the engine is operating at the selected optimized transition operating point, the combustion mode is switched from the first combustion mode to the second combustion mode. While operating in the second combustion mode, one or more engine actuator settings are adjusted to cause the operating point of the internal combustion to approach the target operating point.

  18. Eddy-current-damped microelectromechanical switch

    DOE Patents [OSTI]

    Christenson, Todd R.; Polosky, Marc A.

    2009-12-15

    A microelectromechanical (MEM) device is disclosed that includes a shuttle suspended for movement above a substrate. A plurality of permanent magnets in the shuttle of the MEM device interact with a metal plate which forms the substrate or a metal portion thereof to provide an eddy-current damping of the shuttle, thereby making the shuttle responsive to changes in acceleration or velocity of the MEM device. Alternately, the permanent magnets can be located in the substrate, and the metal portion can form the shuttle. An electrical switch closure in the MEM device can occur in response to a predetermined acceleration-time event. The MEM device, which can be fabricated either by micromachining or LIGA, can be used for sensing an acceleration or deceleration event (e.g. in automotive applications such as airbag deployment or seat belt retraction).

  19. Eddy-current-damped microelectromechanical switch

    DOE Patents [OSTI]

    Christenson, Todd R.; Polosky, Marc A.

    2007-10-30

    A microelectromechanical (MEM) device is disclosed that includes a shuttle suspended for movement above a substrate. A plurality of permanent magnets in the shuttle of the MEM device interact with a metal plate which forms the substrate or a metal portion thereof to provide an eddy-current damping of the shuttle, thereby making the shuttle responsive to changes in acceleration or velocity of the MEM device. Alternately, the permanent magnets can be located in the substrate, and the metal portion can form the shuttle. An electrical switch closure in the MEM device can occur in response to a predetermined acceleration-time event. The MEM device, which can be fabricated either by micromachining or LIGA, can be used for sensing an acceleration or deceleration event (e.g. in automotive applications such as airbag deployment or seat belt retraction).

  20. Permanent-magnet switched-flux machine

    DOE Patents [OSTI]

    Trzynadlowski, Andrzej M.; Qin, Ling

    2010-01-12

    A permanent-magnet switched-flux (PMSF) device has a ferromagnetic outer stator mounted to a shaft about a central axis extending axially through the PMSF device. Pluralities of top and bottom stator poles are respectively mounted in first and second circles, radially outwardly in first and second transverse planes extending from first and second sections of the central axis adjacent to an inner surface of the ferromagnetic outer stator. A ferromagnetic inner rotor is coupled to the shaft and has i) a rotor core having a core axis co-axial with the central axis; and ii) first and second discs having respective outer edges with first and second pluralities of permanent magnets (PMs) mounted in first and second circles, radially outwardly from the rotor core axis in the first and second transverse planes. The first and second pluralities of PMs each include PMs of alternating polarity.

  1. Permanent-magnet switched-flux machine

    DOE Patents [OSTI]

    Trzynadlowski, Andrzej M.; Qin, Ling

    2011-06-14

    A permanent-magnet switched-flux (PMSF) device has an outer rotor mounted to a shaft about a central axis extending axially through the PMSF device. First and second pluralities of permanent-magnets (PMs) are respectively mounted in first and second circles, radially outwardly in first and second transverse planes extending from first and second sections of the central axis adjacent to an inner surface of the outer rotor. An inner stator is coupled to the shaft and has i) a stator core having a core axis co-axial with the central axis; and ii) first and second pluralities of stator poles mounted in first and second circles, radially outwardly from the stator core axis in the first and second transverse planes. The first and second pluralities of PMs each include PMs of alternating polarity.

  2. Semiconductor switch geometry with electric field shaping

    DOE Patents [OSTI]

    Booth, R.; Pocha, M.D.

    1994-08-23

    An optoelectric switch is disclosed that utilizes a cylindrically shaped and contoured GaAs medium or other optically active semiconductor medium to couple two cylindrically shaped metal conductors with flat and flared termination points each having an ovoid prominence centrally extending there from. Coupling the truncated ovoid prominence of each conductor with the cylindrically shaped optically active semiconductor causes the semiconductor to cylindrically taper to a triple junction circular line at the base of each prominence where the metal conductor conjoins with the semiconductor and a third medium such as epoxy or air. Tapering the semiconductor at the triple junction inhibits carrier formation and injection at the triple junction and thereby enables greater current carrying capacity through and greater sensitivity of the bulk area of the optically active medium. 10 figs.

  3. Semiconductor switch geometry with electric field shaping

    DOE Patents [OSTI]

    Booth, Rex (Livermore, CA); Pocha, Michael D. (Livermore, CA)

    1994-01-01

    An optoelectric switch is disclosed that utilizes a cylindrically shaped and contoured GaAs medium or other optically active semiconductor medium to couple two cylindrically shaped metal conductors with flat and flared termination points each having an ovoid prominence centrally extending there from. Coupling the truncated ovoid prominence of each conductor with the cylindrically shaped optically active semiconductor causes the semiconductor to cylindrically taper to a triple junction circular line at the base of each prominence where the metal conductor conjoins with the semiconductor and a third medium such as epoxy or air. Tapering the semiconductor at the triple junction inhibits carrier formation and injection at the triple junction and thereby enables greater current carrying capacity through and greater sensitivity of the bulk area of the optically active medium.

  4. Legacy Management Contacts | Department of Energy

    Energy Savers [EERE]

    Legacy Management Contacts Legacy Management Contacts Title Name Phone Fax LM Director David Geiser (202) 586-7550 (202) 586-8403 Human Resource Management Patricia Poole-Shirriel Team Leader (202) 586-0402 (202) 586-1540 Office of Business Operations Acting Director Tom Pauling (202) 586-1782 (202) 586-1540 Benefits Continuity Team Patrick Ring Team Leader (202) 586-1835 (202) 586-1540 Planning, Budget, and Acquisition Team Jane Powell Team Leader (202) 586-3924 (202) 586-1540 Archives and

  5. Contact Information | Princeton Plasma Physics Lab

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

    Contact Information Head of Office of Technology Transfer: Laurie Bagley Princeton Plasma Physics Laboratory P.O. Box 451 Princeton, NJ 08543 Telephone: 609-243-2425 E-mail: lbagley@pppl.gov PPPL Ombudsman: John C. Lacenere Princeton Plasma Physics Laboratory Mail Stop 08 P.O. Box 451 Princeton, NJ 08543 Telephone: 609-243-3308 E-mail: lacenere@pppl.gov Fax: (609) 243-3030 Questions or comments? Please contact Laurie Bagley at lbagley@pppl.gov . Associated Files: PDF icon Patent Awareness

  6. DOE Research and Development Accomplishments Contact Us

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

    Contact Us If you wish to provide comments or suggestions, please see the contact information below. email EMAIL Phone PHONE 865-576-1188 Mailing address MAIL DOE R&D Accomplishments U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge,TN 37831 Some links on this page may take you to non-federal websites. Their policies may differ from this site. Website Policies/Important Links U.S. Department of Energy Office of Scientific and Technical Information

  7. Laboratory Equipment Donation Program - Contact Us

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

    Contact Us If you have a question about the Laboratory Equipment Donation Program (LEDP), we recommend you check frequently asked questions. If your question still has not been answered or if you wish to send a comment, please see contact information below. Email EMAIL Email messages are answered Monday - Friday, 9 a.m. - 4 p.m. Telephone PHONE 865-241-6435 Mailing Address MAIL U.S. Department of Energy Office of Scientific and Technical Information P.O. Box 62 Oak Ridge,TN 37831 Additional

  8. Computing and Computational Sciences Directorate - Contacts

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

    Home › About Us Contacts Jeff Nichols Associate Laboratory Director Computing and Computational Sciences Becky Verastegui Directorate Operations Manager Computing and Computational Sciences Directorate Michael Bartell Chief Information Officer Information Technologies Services Division Jim Hack Director, Climate Science Institute National Center for Computational Sciences Shaun Gleason Division Director Computational Sciences and Engineering Barney Maccabe Division Director Computer Science

  9. High voltage photo-switch package module having encapsulation with profiled metallized concavities

    DOE Patents [OSTI]

    Sullivan, James S; Sanders, David M; Hawkins, Steven A; Sampayan, Stephen A

    2015-05-05

    A photo-conductive switch package module having a photo-conductive substrate or wafer with opposing electrode-interface surfaces metalized with first metallic layers formed thereon, and encapsulated with a dielectric encapsulation material such as for example epoxy. The first metallic layers are exposed through the encapsulation via encapsulation concavities which have a known contour profile, such as a Rogowski edge profile. Second metallic layers are then formed to line the concavities and come in contact with the first metal layer, to form profiled and metalized encapsulation concavities which mitigate enhancement points at the edges of electrodes matingly seated in the concavities. One or more optical waveguides may also be bonded to the substrate for coupling light into the photo-conductive wafer, with the encapsulation also encapsulating the waveguides.

  10. Contacts for Integrating Renewable Energy into Federal Construction Projects

    Broader source: Energy.gov [DOE]

    Contacts to learn more about integrating renewable energy technologies into Federal construction projects.

  11. Intergovernmental & External Affairs Contacts | Department of Energy

    Energy Savers [EERE]

    Contacts Intergovernmental & External Affairs Contacts Contacts Tara Trujillo Director, Intergovernmental Affairs More about Tara Trujillo Heidi VanGenderen Director, External Affairs More about Heidi VanGenderen Contact Us Intergovernmental and External Affairs 1000 Independence Ave., S.W. Washington, DC 20585 Phone: (202)586-3600 email envelope Energy.Outreach@hq.doe.gov

  12. Federal Energy Management Program Golden Field Office Contacts | Department

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

    of Energy Golden Field Office Contacts Federal Energy Management Program Golden Field Office Contacts The following field contacts at the U.S. Department of Energy's Golden Field Office support the Federal Energy Management Program (FEMP). FEMP staff contact information is also available. Wayne Latham Energy Savings Performance Contract (ESPC) Contracting Officer 720-356-1507

  13. Technical Standards Managers Contact List | Department of Energy

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

    Technical Standards Managers Contact List Technical Standards Managers Contact List October 2015 Contact list for Technical Standards Managers in DOE, Field offices and National Laboratories. PDF icon Technical Standards Managers Contact List, October 2015 More Documents & Publications All Active DOE Technical Standards Document Project Registration Number Assignments (Active) Active Project Justification Statement

  14. Tribal Agency Points of Contact | Department of Energy

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

    Tribal Agency Points of Contact Tribal Agency Points of Contact This document contains names and contact information at all federal agencies for Tribal Affairs. PDF icon Tribal Agency points of contact More Documents & Publications 2011 Tribal Summit Agenda DOETribalSummitAgenda.pdf 2011 Tribal Summit Book

  15. Reduced Switching Frequency Active Harmonic Elimination for Multilevel Converters

    SciTech Connect (OSTI)

    Du, Zhong; Tolbert, Leon M; Chiasson, John N; Ozpineci, Burak

    2008-01-01

    This paper presents a reduced switching-frequency active-harmonic-elimination method (RAHEM) to eliminate any number of specific order harmonics of multilevel converters. First, resultant theory is applied to transcendental equations to eliminate low-order harmonics and to determine switching angles for a fundamental frequency-switching scheme. Next, based on the number of harmonics to be eliminated, Newton climbing method is applied to transcendental equations to eliminate high-order harmonics and to determine switching angles for the fundamental frequency-switching scheme. Third, the magnitudes and phases of the residual lower order harmonics are computed, generated, and subtracted from the original voltage waveform to eliminate these low-order harmonics. Compared to the active-harmonic-elimination method (AHEM), which generates square waves to cancel high-order harmonics, RAHEM has lower switching frequency. The simulation results show that the method can effectively eliminate all the specific harmonics, and a low total harmonic distortion (THD) near sine wave is produced. An experimental 11-level H-bridge multilevel converter with a field-programmable gate-array controller is employed to experimentally validate the method. The experimental results show that RAHEM does effectively eliminate any number of specific harmonics, and the output voltage waveform has low switching frequency and low THD.

  16. Spintronic switches for ultra low energy global interconnects

    SciTech Connect (OSTI)

    Sharad, Mrigank Roy, Kaushik

    2014-05-07

    We present ultra-low energy interconnect design using nano-scale spin-torque (ST) switches for global data-links. Emerging spin-torque phenomena can lead to ultra-low-voltage, high-speed current-mode magnetic-switches. ST-switches can simultaneously provide large trans-impedance gain by employing magnetic tunnel junctions, to convert current-mode signals into large-swing voltage levels. Such device-characteristics can be used in the design of energy-efficient current-mode global interconnects.

  17. Photo-induced micro-mechanical optical switch

    DOE Patents [OSTI]

    Rajic, Slobodan (Knoxville, TN); Datskos, Panagiotis George (Knoxville, TN); Egert, Charles M. (late of Oak Ridge, TN)

    2002-01-01

    An optical switch is formed by introducing light lengthwise to a microcantilever waveguide directed toward a second waveguide. The microcantilever is caused to bend by light emitted from a laser diode orthogonal to the microcantilever and at an energy above the band gap, which induces stress as a result of the generation of free carriers. The bending of the waveguide directs the carrier frequency light to a second receptor waveguide or to a non-responsive surface. The switch may be combined in an array to perform multiple switching functions rapidly and at low energy losses.

  18. Photovoltaic Electrical Contact and Cell Coating Basics | Department of

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

    Energy Electrical Contact and Cell Coating Basics Photovoltaic Electrical Contact and Cell Coating Basics August 19, 2013 - 4:12pm Addthis The outermost layers of photovoltaic (PV) cell, or solar cell, are the electrical contacts and anti-reflective coating. These layers provide essential functions to the cell's operation. Electrical Contacts Electrical contacts are essential to PV cells because they bridge the connection between the semiconductor material and the external electrical load,

  19. Electrical Breakdown Physics in Photoconductive Semiconductor Switches (PCSS).

    SciTech Connect (OSTI)

    Mar, Alan; Zutavern, Fred J.; Vawter, Gregory A.; Hjalmarson, Harold P.; Gallegos, Richard Joseph; Bigman, Verle Howard

    2016-01-01

    Advanced switching devices with long lifetime will be critical components for Linear Transformer Drivers (LTDs) in next-generation accelerators. LTD designs employ high switch counts. With current gas switch technology at %7E10e3 shot life, a potential game-changer would be the development of a reliable low-impedance (%3C35nh) optically-triggered compact solid-state switch capable of switching 200kV and 50kA with 10e5 shotlife or better. Other applications of this technology, are pulse shaping programmable systems for dynamic material studies (Z-next, Genesis), efficient pulsed power systems for biofuel feedstock, short pulse (10 ns) accelerator designs for the Defense Threat Reduction Agency (DTRA), and sprytron replacements in NW firing sets. This LDRD project has succeeded in developing new optically-triggered photoconductive semiconductor switch (PCSS) designs that show great promise for scaling to modules capable of 200kV (DC) and 5kA current that can be stacked in parallel to achieve 100's of kA with 10e5 shot lifetime. . Executive Summary Advanced switching devices with long lifetime will be critical components for Linear Transformer Drivers (LTDs) in next-generation accelerators. LTD designs employ high switch counts. With current gas switch technology at %7E10e3 shot life, a potential game-changer would be the development of a reliable low-impedance (%3C35nh) optically-triggered compact solid-state switch capable of switching 200kV and 50kA with 10e5 shotlife or better. Other applications of this technology, are pulse shaping programmable systems for dynamic material studies (Z-next, Genesis), efficient pulsed power systems for biofuel feedstock, short pulse (10 ns) accelerator designs for the Defense Threat Reduction Agency (DTRA), and sprytron replacements in NW firing sets. This LDRD project has succeeded in developing new optically-triggered photoconductive semiconductor switch (PCSS) designs that show great promise for scaling to modules capable of 200kV (DC) and 5kA current that can be stacked in parallel to achieve 100's of kA with 10e5 shot lifetime. The new vertical switch design configuration generates parallel filaments in the bulk GaAs (as opposed to just beneath the surface as in previous designs) to achieve breakdown fields close to the maximum for the bulk GaAs while operating in air, and with 2-D scalability of the number of current-sharing filaments. This design also may be highly compatible with 2-D VCSEL arrays for optical triggering. The demonstration of this design in this LDRD utilized standard thickness wafers to trigger 0.4kA at 35kV/cm (limited by 0.6mm wafer thickness), tested to 1e5 shots with no detectable degradation of switch performance. Higher fields, total current, and switching voltages would be achievable with thicker GaAs wafers. Another important application pursued in this LDRD is the use of PCSS for trigger generator applications. Conventional in-plane PCSS have achieved triggering of a 100kV sparkgap (Kinetech-type) switch of the type similar to switches being considered for accelerator upgrades. The trigger is also being developed for pulsed power for HPM applications that require miniaturization and robust performance in noisy compact environments. This has spawned new programs for developing this technology, including an STTR for VCSEL trigger laser integration, also pursuing other follow-on applications.

  20. Spark gap device for precise switching

    DOE Patents [OSTI]

    Boettcher, G.E.

    1984-10-02

    A spark gap device for precise switching of an energy storage capacitor into an exploding bridge wire load is disclosed. Niobium electrodes having a melting point of 2,415 degrees centigrade are spaced apart by an insulating cylinder to define a spark gap. The electrodes are supported by conductive end caps which, together with the insulating cylinder, form a hermetically sealed chamber filled with an inert, ionizable gas, such as pure xenon. A quantity of solid radioactive carbon-14 within the chamber adjacent the spark gap serves as a radiation stabilizer. The sides of the electrodes and the inner wall of the insulating cylinder are spaced apart a sufficient distance to prevent unwanted breakdown initiation. A conductive sleeve may envelop the outside of the insulating member from the midpoint of the spark gap to the cap adjacent the cathode. The outer metallic surfaces of the device may be coated with a hydrogen-impermeable coating to lengthen the shelf life and operating life of the device. The device breaks down at about 1,700 volts for input voltage rates up to 570 volts/millisecond and allows peak discharge currents of up to 3,000 amperes from a 0.3 microfarad energy storage capacitor for more than 1,000 operations. 3 figs.