National Library of Energy BETA

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. 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.

  4. Contacts

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

    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...

  5. Contacts

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

    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...

  6. Contacts

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

    Contacts Contact Us Important information to help you contact the museum or plan your visit. Contacts thumbnail of Linda Deck Museum Director Linda Deck Email Operations Mary Ellen Ortiz Email Marketing, Communications, Special Events Linda Anderman Email Collections Wendy Strohmeyer Email Exhibits Omar Juveland Email Exhibit Shop Robert Naranjo Email Facilities Mike Martinez Email Science Education Gordon McDonough Email Liz Martineau Email Still Have a Question? We may have answered your

  7. Contacts

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

    665-5390 Experimental Area Manager Charles Kelsey 665-5579 Safety Officer Frances Aull 667-6095 Links Group Contacts Group Roster Buildings and Offices Instrument...

  8. Contacts

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

    (505) 667-4875 lansing@lanl.gov Your contact for registration, clearances, other logistics: Christy Archuleta Chief of Staff, Associate Directorate for Security and Safeguards...

  9. 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...

  10. Contact

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

    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. Center for Advanced Microstructures & Devices 6980 Jefferson Hwy., Baton Rouge, LA 70806 Telephone: 225-578-8887 * Fax: 225-578-6954 Copyright © 2007. All Rights Reserved.

  11. Latching relay switch assembly

    DOE Patents [OSTI]

    Duimstra, Frederick A.

    1991-01-01

    A latching relay switch assembly which includes a coil section and a switch or contact section. The coil section includes at least one permanent magnet and at least one electromagnet. The respective sections are, generally, arranged in separate locations or cavities in the assembly. The switch is latched by a permanent magnet assembly and selectively switched by an overriding electromagnetic assembly.

  12. FAST ACTING CURRENT SWITCH

    DOE Patents [OSTI]

    Batzer, T.H.; Cummings, D.B.; Ryan, J.F.

    1962-05-22

    A high-current, fast-acting switch is designed for utilization as a crowbar switch in a high-current circuit such as used to generate the magnetic confinement field of a plasma-confining and heat device, e.g., Pyrotron. The device particularly comprises a cylindrical housing containing two stationary, cylindrical contacts between which a movable contact is bridged to close the switch. The movable contact is actuated by a differential-pressure, airdriven piston assembly also within the housing. To absorb the acceleration (and the shock imparted to the device by the rapidly driven, movable contact), an adjustable air buffer assembly is provided, integrally connected to the movable contact and piston assembly. Various safety locks and circuit-synchronizing means are also provided to permit proper cooperation of the invention and the high-current circuit in which it is installed. (AEC)

  13. ELECTRIC CONTACT MEANS

    DOE Patents [OSTI]

    Grear, J.W. Jr.

    1959-03-10

    A switch adapted to maintain electrical connections under conditions of vibration or acceleration is described. According to the invention, thc switch includes a rotatable arm carrying a conductive bar arranged to close against two contacts spaced in the same plane. The firm and continuous engagement of the conductive bar with the contacts is acheived by utilizeing a spring located betwenn the vbar and athe a rem frzme and slidable mounting the bar in channel between two arms suspendef from the arm frame.

  14. Contact | The Ames Laboratory

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

    Contact Contact Information

  15. Neutron activated switch

    DOE Patents [OSTI]

    Barton, David M.

    1991-01-01

    A switch for reacting quickly to a neutron emission. A rod consisting of fissionable material is located inside a vacuum tight body. An adjustable contact is located coaxially at an adjustable distance from one end of the rod. Electrical leads are connected to the rod and to the adjustable contact. With a vacuum drawn inside the body, a neutron bombardment striking the rod causes it to heat and expand longitudinally until it comes into contact with the adjustable contact. This circuit closing occurs within a period of a few microseconds.

  16. JLF Contacts

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

    JLF Contacts JLF Staff - March 2015

  17. Non-latching relay switch assembly

    DOE Patents [OSTI]

    Duimstra, Frederick A.

    1991-01-01

    A non-latching relay switch assembly which includes a coil section and a switch or contact section. The coil section includes a permanent magnet and an electromagnet. The respective sections are arranged in separate locations or cavities in the assembly. The switch has a "normal" position and is selectively switched by an overriding electromagnetic assembly. The switch returns to the "normal" position when the overriding electromagnetic assembly is inactive.

  18. Contact Information | The Ames Laboratory

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

    Contact Information Contact Information

  19. 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.

  20. WINDExchange: Contacts

    Wind Powering America (EERE)

    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

  1. Contact Us

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

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

  2. Contact Us

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

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

  3. Contact us

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

    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...

  4. 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.

  5. Contact Us

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

    Menu Feynman Center About Us Team Capabilities Explosives Science Anticipate-Affect Detect Neutralize & Mitigate Training Facilities Services Statement of Capabilities Government Funding Opportunity Announcements Broad Agency Announcements Requests for Proposals Agreement Mechanisms Innovations Technologies Patents Publications Contact Us LACED » Contact Us Contact Us . Contacts If you have a complex problem related to explosives detection or are interested in collaborating with Los

  6. ION SWITCH

    DOE Patents [OSTI]

    Cook, B.

    1959-02-10

    An ion switch capable of transferring large magnitudes of power is described. An ion switch constructed in accordance with the invention includes a pair of spaced control electrodes disposed in a highly evacuated region for connection in a conventional circuit to control the passing of power therethrough. A controllable ionic conduction path is provided directiy between the control electrodes by a source unit to close the ion switch. Conventional power supply means are provided to trigger the source unit and control the magnitude, durations and pulse repetition rate of the aforementioned ionic conduction path.

  7. Optical Switch

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

    seven wonders Optical Switch A key component in the laser chain, an optical switch called a plasma electrode Pockels cell (PEPC), was invented and developed at LLNL. A Pockels cell rotates the polarization of a laser beam when a voltage is applied across an electro-optic crystal. Depending on the voltage applied, the Pockels cell either allows light to pass through or to reflect off a polarizer, creating an optical switch. For each of NIF's 192 beamlines, a PEPC allows the laser pulse to make

  8. Acceleration switch

    DOE Patents [OSTI]

    Abbin, J.P. Jr.; Middleton, J.N.; Schildknecht, H.E.

    1979-08-20

    An improved acceleration switch is described which is 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.

  9. Acceleration switch

    DOE Patents [OSTI]

    Abbin, Jr., Joseph P.; Middleton, John N.; Schildknecht, Harold E.

    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.

  10. Acceleration switch

    DOE Patents [OSTI]

    Abbin, Jr., Joseph P.; Devaney, Howard F.; Hake, Lewis W.

    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.

  11. Mercury switch with non-wettable electrodes

    DOE Patents [OSTI]

    Karnowsky, Maurice M.; Yost, Frederick G.

    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.

  12. Contact Us

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

    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...

  13. 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...

  14. 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.

  15. Optical switch

    DOE Patents [OSTI]

    Reedy, Robert P.

    1987-01-01

    An optical switching device (10) is provided whereby light from a first glass fiber (16) or a second glass fiber (14) may be selectively transmitted into a third glass fiber (18). Each glass fiber is provided with a focusing and collimating lens system (26, 28, 30). In one mode of operation, light from the first glass fiber (16) is reflected by a planar mirror (36) into the third glass fiber (18). In another mode of operation, light from the second glass fiber (14) passes directly into the third glass fiber (18). The planar mirror (36) is attached to a rotatable table (32) which is rotated to provide the optical switching.

  16. 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.

  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

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

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

  19. ARM - Contacts

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

    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...

  20. PNNL: Contacts

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

    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

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

    Media Contacts /newsroom/_assets/images/legacy-icon-short.jpg Media Contacts x General News Media Questions Kevin Roark, (505) 665-9202 Science, Technology, Engineering Nancy Ambrosiano, (505) 667-0471 Accelerators, electrodynamics Bioscience, biosecurity, health Chemical science Earth, space sciences Energy, energy security Engineering High energy density plasmas, fluids Information science, supercomputing New materials Nuclear physics, astrophysics Sensors, instrumentation systems Global

  2. Website Contact

    Broader source: Energy.gov [DOE]

    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...

  3. WINDExchange: Contacts

    Wind Powering America (EERE)

    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 ...

  4. Contact Us

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

    Director Scientific Networking Division grbell@es.net Administrative Contacts Rebekah Mathews rpmathews@es.net (510) 486-4015 (510) 486-6712 (fax) Kelly Gonzalez kagonzalez@es.net...

  5. Contact Us

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

    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 LANL researchers with The Research Library is open to the public Monday-Friday, 9am-5pm. email Email Us library@lanl.gov Call us Call Us 505-667-5809 Visit us Stop By We are located in the Oppenheimer Study Center TA 3, Bldg. 207 (across from Otowi) Address MS-P362 PO Box 1663 Los Alamos, NM 87545-1362

  6. THYRATRON SWITCH

    DOE Patents [OSTI]

    Creveling, R.; Bourgeois, N.A. Jr.

    1959-04-21

    An arrangement for utilizing a thyratron as a noise free switch is described. It has been discovered that the voltage between plate and cathode of a thyratron will oscillate, producing voltage spikes, if the tube carries only a fraction of its maximum rated current. These voltage spikes can produce detrimental effects where the thyratron is used in critical timing circuits. To alleviate this problem the disclosed circuit provides a charged capacitor and a resistor in parallel with the tube and of such value that the maximum current will flow from the capacitor through the thyratron when it is triggered. During this time the signal current is conducted through the tube, before the thyratron voltage starts to oscillate, and the signal current output is free of noise spikes.

  7. Contact Us

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

    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

  8. Radiation hard vacuum switch

    DOE Patents [OSTI]

    Boettcher, Gordon E.

    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.

  9. 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.

  10. 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.

  11. Contact Us - SRSCRO

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

    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...

  12. SWITCHING TRANSMITTER POSITIONING OF SYNCHROS

    DOE Patents [OSTI]

    Wolff, H.

    1962-03-13

    A transformer apparatus is designed for effecting the step positioning of synchro motors. The apparatus is provided with ganged switches and pre- selected contacts to permit the units and tens selection of the desired angular position for the synchro motor rotor with only the movement of two selector knobs required. With the selection thus made, the appropriate pre-selected signal is delivered to the synchro motor for positioning the rotor of the latter as selected. The transformer apparatus is divided into smaller arrangements to conform with coraputed trigonometric relations which will give the desired results. (AEC)

  13. 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.

  14. Laser-triggered vacuum switch

    DOE Patents [OSTI]

    Brannon, Paul J.; Cowgill, Donald F.

    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.

  15. 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.

  16. 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.

  17. Electro-mechanical heat switch for cryogenic applications

    DOE Patents [OSTI]

    van den Berg, Marcel L.; Batteux, Jan D.; Labov, Simon E.

    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.

  18. Triggered plasma opening switch

    DOE Patents [OSTI]

    Mendel, Clifford W.

    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.

  19. REMOTE CONTROLLED SWITCHING DEVICE

    DOE Patents [OSTI]

    Hobbs, J.C.

    1959-02-01

    An electrical switching device which can be remotely controlled and in which one or more switches may be accurately operated at predetermined times or with predetermined intervening time intervals is described. The switching device consists essentially of a deck, a post projecting from the deck at right angles thereto, cam means mounted for rotation around said posts and a switch connected to said deck and actuated by said cam means. Means is provided for rotating the cam means at a constant speed and the switching apparatus is enclosed in a sealed container with external adjusting means and electrical connection elements.

  20. 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.

  1. 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.

  2. 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.

  3. Solid state switch

    DOE Patents [OSTI]

    Merritt, Bernard T.; Dreifuerst, Gary R.

    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.

  4. 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...

  5. Alarm toe switch

    DOE Patents [OSTI]

    Ganyard, Floyd P.

    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.

  6. 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.

  7. 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.

  8. Contacts | Department of Energy

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

    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 -

  9. 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...

  10. Transmission - Contact Information

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

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

  11. 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 &...

  12. 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...

  13. 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:...

  14. 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...

  15. 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...

  16. 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...

  17. 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.

  18. 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.

  19. 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 2010 DOE Vehicle Technologies and Hydrogen Programs Annual Merit Review and Peer Evaluation Meeting, June 7-11, 2010 -- Washington D.C. PDF icon ape011_lai_2010_o.pdf More Documents & Publications Advanced Soft Switching Inverter for Reducing Switching and Power Losses Electro-thermal-mechanical Simulation and Reliability for

  20. 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.

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

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

    Advanced Soft Switching Inverter for Reducing Switching and Power Losses Electro-thermal-mechanical Simulation and Reliability for Plug-in Vehicle Converters and Inverters Electro-...

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

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

    Advanced Soft Switching Inverter for Reducing Switching and Power Losses Electro-thermal-mechanical Simulation and Reliability for Plug-in Vehicle Converters and Inverters ...

  3. Chemical Management Contacts

    Broader source: Energy.gov [DOE]

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

  4. 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

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. Silicon Carbide JFET Switch

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

    5kV Enhancement-Model Silicon Carbide JFET Switch The novel 6.5kV SiC device and power module represent the world's highest-voltage module based on reliable, normally-off SiC JFETs. It reduces switching losses over that of Si-IGBTs by a factor of 20 and exhibits the fastest turn- on and turn-off of any 6.5kV-rated power module. Another major aspect of what makes this product unique is USCi's development and manufacturing approach. JFETs are simple transistor switches, yet for SiC materials, a

  10. SPARK GAP SWITCH

    DOE Patents [OSTI]

    Neal, R.B.

    1957-12-17

    An improved triggered spark gap switch is described, capable of precisely controllable firing time while switching very large amounts of power. The invention in general comprises three electrodes adjustably spaced and adapted to have a large potential impressed between the outer electrodes. The central electrode includes two separate elements electrically connected togetaer and spaced apart to define a pair of spark gaps between the end electrodes. Means are provided to cause the gas flow in the switch to pass towards the central electrode, through a passage in each separate element, and out an exit disposed between the two separate central electrode elements in order to withdraw ions from the spark gap.

  11. Contact Us | DOE Patents

    Office of Scientific and Technical Information (OSTI)

    Contact Us Contact Us If you have a question or comment about DOEPatents, check to see if it is on our list of frequently asked questions. If your question isn't answered there, you may contact us using the information below. Thanks in advance. Your help is appreciated. Contact us by email Email doepatentscomments@osti.gov NOTE: Email messages are answered Monday - Friday, 9 a.m. - 4 p.m. We do our best to respond within 48 hours. Contact us by phone Phone Phone (865) 576-1333 Contact us in

  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 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...

  14. 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...

  15. Contact Us | Geothermal

    Office of Scientific and Technical Information (OSTI)

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

  16. US ITER | Contact Us

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

    Organizational Charts 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 Contacts Home > Contact Us> Organizational Charts Organizational Charts US ITER Organizational Chart Oak Ridge National Laboratory Organizational Chart ITER Organization (IO) Structure Chart ITER International Department of Energy Office of Science Oak Ridge National Laboratory Princeton Plasma

  17. 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...

  18. Contacts | Department of Energy

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

    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

  19. 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.

  20. 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.

  1. 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.

  2. Multiple switch actuator

    DOE Patents [OSTI]

    Beyer, Edward T.

    1976-01-06

    The present invention relates to switches and switch actuating devices to be operated for purposes of arming a bomb or other missile as it is dropped or released from an aircraft. The particular bomb or missile in which this invention is applied is one in which there is a plurality of circuits which are to be armed by the closing of switches upon dropping or releasing of the bomb. The operation of the switches to closed position is normally accomplished by means of a pull-out wire; that is, a wire which is withdrawn from the bomb or missile at the time of release of the bomb, one end of the wire being attached to the aircraft. The conditions to be met are that the arming switches must be positively and surely maintained in open position until the bomb is released and the arming action is effected. The action of the pull-out wire in achieving the arming action must be sure and positive with minimum danger of malfunctioning, jamming or binding.

  3. 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.

  4. 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.

  5. 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.

  6. 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 ...

  7. 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...

  8. 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...

  9. ORISE: Contact Environment, Safety & Health

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

    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...

  10. 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

  11. Media Contacts - Hanford Site

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

    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

  12. 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

  13. Laser activated diffuse discharge switch (Patent) | DOEPatents

    Office of Scientific and Technical Information (OSTI)

    Laser activated diffuse discharge switch Title: Laser activated diffuse discharge switch The invention is a gas mixture for a diffuse discharge switch which is capable of changing ...

  14. Dedication of Ethernet Switch | Department of Energy

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

    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 ...

  15. 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...

  16. 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.

  17. Federal NEPA Contacts

    Broader source: Energy.gov [DOE]

    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...

  18. Contact Us - Hanford Site

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

    Helpful Links Media Contacts Hanford Contractors DOE Richland Operations Office Hanford @ Social Media River Corridor and Central Plateau Cleanup Hanford Site Facebook Hanford...

  19. 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...

  20. Contact Us - Hanford Site

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

    Contact Us About Us Charging Your Time Committee Members Contact Us Electronic Registration Form Exhibitor and Vendor Information EXPO 2016 Sponsors EXPO Award Criteria How to Get to TRAC Special Events What is EXPO Why Should I Participate in EXPO Contact Us Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size EXPO 2016 planning is under way. If you would like to participate in EXPO 2016, or if you have questions or comments, please contact one of the EXPO Planning

  1. 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...

  2. 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.

  3. 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.

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

    DOE Patents [OSTI]

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

    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.

  5. Ion Implanted Passivated Contacts for Interdigitated Back Contacted Solar

    Office of Scientific and Technical Information (OSTI)

    Cells (Conference) | SciTech Connect Ion Implanted Passivated Contacts for Interdigitated Back Contacted Solar Cells Citation Details In-Document Search Title: Ion Implanted Passivated Contacts for Interdigitated Back Contacted Solar Cells We describe work towards an interdigitated back contacted (IBC) solar cell utilizing ion implanted, passivated contacts. Formation of electron and hole passivated contacts to n-type CZ wafers using tunneling SiO2 and ion implanted amorphous silicon (a-Si)

  6. 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.

  7. 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.

  8. Optical fiber switch

    DOE Patents [OSTI]

    Early, James W.; Lester, Charles S.

    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.

  9. Plasma opening switch

    DOE Patents [OSTI]

    Savage, Mark E.; Mendel, Jr., Clifford W.

    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.

  10. MULTIPLE SPARK GAP SWITCH

    DOE Patents [OSTI]

    Schofield, A.E.

    1958-07-22

    A multiple spark gap switch of unique construction is described which will permit controlled, simultaneous discharge of several capacitors into a load. The switch construction includes a disc electrode with a plurality of protuberances of generally convex shape on one surface. A firing electrode is insulatingly supponted In each of the electrode protuberances and extends substantially to the apex thereof. Individual electrodes are disposed on an insulating plate parallel with the disc electrode to form a number of spark gaps with the protuberances. These electrodes are each connected to a separate charged capacitor and when a voltage ls applied simultaneously between the trigger electrodes and the dlsc electrode, each spark gap fires to connect its capacitor to the disc electrode and a subsequent load.

  11. Automatic switching matrix

    DOE Patents [OSTI]

    Schlecht, Martin F.; Kassakian, John G.; Caloggero, Anthony J.; Rhodes, Bruce; Otten, David; Rasmussen, Neil

    1982-01-01

    An automatic switching matrix that includes an apertured matrix board containing a matrix of wires that can be interconnected at each aperture. Each aperture has associated therewith a conductive pin which, when fully inserted into the associated aperture, effects electrical connection between the wires within that particular aperture. Means is provided for automatically inserting the pins in a determined pattern and for removing all the pins to permit other interconnecting patterns.

  12. 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.

  13. 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.

  14. Contact Us | DOE PAGES

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

    Contact Us Contact Us If you have a question or comment about DOE PAGES, check to see if it is on our list of frequently asked questions. If your question isn't answered there, you may contact us using the information below. Thanks in advance. Your help is appreciated. Email NOTE: Email messages are answered Monday - Friday, 9 a.m. - 4 p.m. We do our best to respond within 48 hours. Phone Phone (865) 241-5275 Mail U.S. Department of Energy Office of Scientific and Technical Information P.O. Box

  15. 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...

  16. 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.

  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. 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...

  1. 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...

  2. Contacts / Hours - Hanford Site

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

    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 ...

  3. 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

  4. Contacts | Department of Energy

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

    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

  5. 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

  6. 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

  7. 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.

  8. 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)

  9. 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 Science and Energy

  10. 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.

  11. 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...

  12. Data center coolant switch

    SciTech Connect (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.

  13. 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

  14. Contact Us | Department of Energy

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

    About Us Contact Us Contact Us Address: 1000 Independence Ave. SW Washington DC 20585 Operator & Personnel Directory: 202-586-5000 Office of Technology Transition:...

  15. 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)...

  16. 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...

  17. 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

  18. 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

  19. Irreversible Low Load Genetic Switches - Energy Innovation Portal

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

    Irreversible Low Load Genetic Switches Lawrence Berkeley National Laboratory Contact LBL About This Technology Technology Marketing SummaryAlthough the use of recombinases for manipulation of genomic sequences is well established, only a few recombinases have been conclusively demonstrated to work orthogonally. That is, as non-cross-reacting recombinases, they do not cause unpredictable recombination events. DescriptionResearchers at the Joint BioEnergy Institute (JBEI) have developed novel

  20. 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.

  1. 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.

  2. 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.

  3. 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

  4. Battery switch for downhole tools

    DOE Patents [OSTI]

    Boling, Brian E.

    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.

  5. "Smart" watchdog safety switch

    DOE Patents [OSTI]

    Kronberg, James W.

    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.

  6. ''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.

  7. 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.

  8. Optimized scalable network switch

    DOE Patents [OSTI]

    Blumrich, Matthias A.; Chen, Dong; Coteus, Paul W.

    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.

  9. High voltage coaxial switch

    DOE Patents [OSTI]

    Rink, John 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.

  10. 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.

  11. FAST OPENING SWITCH

    DOE Patents [OSTI]

    Bender, M.; Bennett, F.K.; Kuckes, A.F.

    1963-09-17

    A fast-acting electric switch is described for rapidly opening a circuit carrying large amounts of electrical power. A thin, conducting foil bridges a gap in this circuit and means are provided for producing a magnetic field and eddy currents in the foil, whereby the foil is rapidly broken to open the circuit across the gap. Advantageously the foil has a hole forming two narrow portions in the foil and the means producing the magnetic field and eddy currents comprises an annular coil having its annulus coaxial with the hole in the foil and turns adjacent the narrow portions of the foil. An electrical current flows through the coil to produce the magnetic field and eddy currents in the foil. (AEC)

  12. 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

  13. 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 EERE.Evaluation@ee.doe.gov Yaw Agyeman at Yoagyeman@lbl.gov

  14. 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.

  15. Contact Us | ScienceCinema

    Office of Scientific and Technical Information (OSTI)

    Contact Us Contact Us We are interested in obtaining new videos from DOE National Laboratories and other DOE funded research facilities. 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 Technical Information P.O. Box 62 Oak Ridge,TN 37831

  16. Threshold Switching Characteristics of Nb/NbO2/TiN Vertical Devices

    SciTech Connect (OSTI)

    Wang, Yuhan; Comes, Ryan B.; Wolf, Stuart A.; Lu, Jiwei

    2015-11-25

    Nb/NbO2/TiN vertical structures were synthesized in-situ and patterned to devices with different contact areas. The devices exhibited threshold resistive switching with minimal hysteresis and a small EThreshold (60~90 kV/cm). The switching behavior was unipolar, and demonstrated good repeatability. A less sharp but still sizable change in the device resistance was observed up to 150 °C. It was found that the resistive switching without Nb capping layer exhibited the hysteretic behavior and much larger EThreshold (~250 kV/cm) likely due to a 2-3 nm surface Nb2O5 layer. The stable threshold switching behavior well above room temperature shows the potential applications of this device as an electronic switch.

  17. Contact stress sensor

    DOE Patents [OSTI]

    Kotovsky, Jack

    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.

  18. 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.

  19. ContaCt

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

    ContaCt The nuclear and materials science research ca- pabilities at LANSCE are operated as a DOE-des- ignated user facility in service to the nation. We provide neutron and proton beams as well as instrumentation and sample environments for basic, applied, industry, and defense-related re- search in nuclear physics and materials science. A yearly call invites proposals for beam time for experiments from other national laboratories, academia, and industry users. Proprietary and nonproprietary

  20. 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...

  1. Dielectric liquid pulsed-power switch

    DOE Patents [OSTI]

    Christophorou, Loucas G.; Faidas, Homer

    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.

  2. 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.

  3. 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.

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

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

    Department of Energy 9 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 Plug-in Vehicle Converters and Inverters Electro-thermal-mechanical Simulation and Reliability for Plug-in Vehicle Converters and Inverters

  5. 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.

  6. 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.

  7. Regenerative switching CMOS system

    DOE Patents [OSTI]

    Welch, James D.

    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.

  8. Contact Us | The Ames Laboratory

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

    Contact Us Contact Us We are interested in obtaining new videos from DOE National Laboratories and other DOE funded research facilities. 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 Technical Information P.O. Box 62 Oak Ridge,TN 37831

    Contact Us Department Manager: Doug Hoenig Room 158 Metals Development Building 294-0930 hoenig@ameslab.gov Departmental Office

  9. 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.

  10. 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.

  11. WNR Instrument Contacts

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

    Instrument Contacts Name Flight Path Position Phone Pager Cell Ullmann, John 1FP14(DANCE) Instrument Scientist 667-2517 664-3523 Couture, Aaron 1FP14(DANCE) Instrument Assistant 667-1730 664-1163 Mosby, Shea 1FP14(DANCE) Instrument Assistant 665-5414 664-7412 Devlin, Matt 1FP12 Instrument Scientist 665-0421 664-5776 Tovesson, Fredrik 1FP12 Instrument Assistant 665-9652 500-5073 Nelson, Ron 1FP05 Instrument Scientist 667-7107 664-2191 690-4220 Devlin, Matt 1FP05 Instrument Assistant 665-0421

  12. Clean Cities Program Contacts

    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

  13. Contacts | Jefferson Lab

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

    Contacts Mailing Address Jefferson Lab 12000 Jefferson Avenue, Suite 15 Newport News, VA 23606 fax (757) 269-7398 Public Affairs Manager John Warren jwarren@jlab.org 757-269-7689 Public Affairs Specialist Debbie Magaldi magaldi@jlab.org (757) 269-5102 Government Relations Specialist Deborah Dowd dowd@jlab.org (757) 269-7180 Public Affairs Associate Michael Robbins mrobbins@jlab.org (757) 269-7617 Science Writer Kandice Carter kcarter@jlab.org (757) 269-7263 Assembling a Cryomodule Jefferson Lab

  14. EWA Contact List

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

    Company/Product Description Contract Number Contract Holders (contact directly) Small Business Product POCs DOE POC Adobe Adobe's Government Cumulative Licenses Program (CLP) and Enterprise Agreement (EA2) Program. Most Adobe desktop products and services DE-IM0000595 (GSA) Emergent, LLC: Blake Weiss ph: 571-419-6423 bweiss@emergent360.com YES Adobe: Mina Pham ph: 571-765-5485 minpham@adobe.com Carrie Whalen 571.765.5371 (tel) whalen@adobe.com Rob Gettings robert.gettings@hq.doe.gov 301-903-0829

  15. High PRF high current switch

    DOE Patents [OSTI]

    Moran, Stuart L.; Hutcherson, R. Kenneth

    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.

  16. 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)

  17. Contact Information | The Ames Laboratory

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

    Contact Information Contact Information Margaret Evans mevans@ameslab.gov 515-294-2056 Kori Grooms groomsk@ameslab.gov 515-294-2056 Vickie Hahn hahn@ameslab.gov 515-294-2056...

  18. Contact Us | Department of Energy

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

    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...

  19. SRI2007 Conference - Contact Information

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

    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...

  20. Contact Us | The Ames Laboratory

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

    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 -...

  1. Contact Us | Department of Energy

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

    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

  3. 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

  4. 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.

  5. 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.

  6. Contact Us | DOE Data Explorer

    Office of Scientific and Technical Information (OSTI)

    Data Explorer Contact Us Contact Us If you have a question or comment about DOE Data Explorer, check to see if it is on our list of frequently asked questions. If your question isn't answered there, you may contact us using the information below. Thanks in advance. Your help is appreciated. Contact us by email Email ddecomments@osti.gov NOTE: Email messages are answered Monday - Friday, 9 a.m. - 4 p.m. We do our best to respond within 48 hours. Contact us by phone Phone Phone (865)-241-5275

  7. 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,...

  8. 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...

  9. 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...

  10. 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...

  11. 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...

  12. 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.

  13. 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.

  14. Sandia National Laboratories: Contact Us

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

    Contact Us Contact Us New Mexico California Sandia National Laboratories, New Mexico P.O. Box 5800 Albuquerque, NM 87185-(mail stop)* Non-mail deliveries: 1515 Eubank SE Albuquerque, NM 87123 Sandia National Laboratories, California P.O. Box 969 Livermore, CA 94551-0969 Non-mail deliveries: 7011 East Avenue Livermore, CA 94550 * All mail must contain an appropriate mail stop to ensure delivery. For employee mail stops, reference our Employee Locator. Contact Information General Inquiries New

  15. 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.

  16. Media Contacts | Argonne National Laboratory

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

    Media Contacts Matthew Howard Argonne National Laboratory Matthew Howard is Argonne's Director of Communications, Education and Public Affairs. Christopher J. Kramer Argonne National Laboratory Christopher J. Kramer is the manager of media relations and external affairs for Argonne. Contact him at 630-252-5580 or media@anl.gov. Tona Kunz Argonne National Laboratory Tona Kunz is a public information officer who covers X-ray science research at Argonne's Advanced Photon Source. Contact her at

  17. Contact Us | Department of Energy

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

    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

  18. Contact PPPO | Department of Energy

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

    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

  19. Contact Us | Department of Energy

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

    About Us » Contact Us Contact Us For more information about the Department of Energy's Environmental Management Los Alamos Field Office and its programs, contact us: By Mail Department of Energy Environmental Management Los Alamos Field Office 3747 West Jemez Road MS-A316 Los Alamos, New Mexico 87544 By Phone (505)-665-5658 Media Inquiries For Public Information and News Media Inquiries call: (505) 665-7768 or email: PublicAffairs.EMLA@em.doe.gov News Public Participation Contact Us

  20. Contact Us | Robotics Internship Program

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

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

  1. LTS Contact Us - Hanford Site

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

    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...

  2. Contact Information | The Ames Laboratory

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

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

  3. Hybrid switch for resonant power converters (Patent) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Patent: Hybrid switch for resonant power converters Citation Details In-Document Search Title: Hybrid switch for resonant power converters A hybrid switch comprising two ...

  4. High voltage MOSFET switching circuit

    DOE Patents [OSTI]

    McEwan, Thomas E.

    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.

  5. Anode initiated surface flashover switch

    DOE Patents [OSTI]

    Brainard, John P.; Koss, Robert J.

    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.

  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. 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 -...

  8. Contact | Solid State Solar Thermal Energy Conversion

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

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

  9. Oak Ridge Site Specific Advisory Board Contacts

    Broader source: Energy.gov [DOE]

    Lists Oak Ridge Site Specific Advisory Board contact information including mailing address, phone numbers, and contact email addresses.

  10. 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 Engineering Science Geoscience Materials Science Nanodevices and Microsystems Radiation Effects and High Energy Density Science Research Contact Information Steve Glover 505-845-9620 sfglove@sandia.gov

  11. Contact Us | Department of Energy

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

    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

  12. Contact Information | The Ames Laboratory

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

    Contact Information Contact Information Debra Covey covey@ameslab.gov 515-294-1048 Stacy Joiner joiner@ameslab.gov 515-294-5932 Elizabeth Pieper pieper@ameslab.gov 515-294-6486 Elizabeth Rodgers rodgers@ameslab.gov 515-294-1254 Richard Zdorkowski zdorkowski@ameslab.gov 515-294-5640

  13. Contact Us | Argonne National Laboratory

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

    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: eggers@anl.gov Mailing Address Argonne National Laboratory Postdoctoral Program Office Building 201, Room 151 9700 South Cass Avenue Argonne, Illinois 60439 U.S.A.

  14. Spark gap switch with spiral gas flow

    DOE Patents [OSTI]

    Brucker, John P.

    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.

  15. Switch for serial or parallel communication networks

    DOE Patents [OSTI]

    Crosette, Dario B.

    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.

  16. 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.

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

    DOE Patents [OSTI]

    Cooper, James A.

    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.

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

    DOE Patents [OSTI]

    Narayan, J.

    1979-10-01

    The invention provides 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 temmperatures. The contact does not require cleaning before attachment of any suitable electrical lead. This method is safe, rapid, reproducible, and relatively inexpensive.

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

    DOE Patents [OSTI]

    Narayan, Jagdish

    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.

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

    DOE Patents [OSTI]

    Walker, Charles A.; Trowbridge, Frank R.

    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.

  1. Secure videoconferencing equipment switching system and method

    DOE Patents [OSTI]

    Hansen, Michael E.

    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.

  2. Contact Us | Department of Energy

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

    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.

  3. 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.

  4. 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.

  5. Fast superconducting magnetic field switch

    DOE Patents [OSTI]

    Goren, Yehuda; Mahale, Narayan K.

    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.

  6. 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....

  7. 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...

  8. 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...

  9. 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: ...

  10. 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

  11. 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.

  12. Contact SEP | Department of Energy

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

    Superior Energy Performance » Contact SEP Contact SEP Superior Energy Performance logo Please send questions, comments, and inquiries to: 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 Facilities Toolbox and Expertise SEP Webinars

  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. Working with SRNL - AMC - Contact

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

    Contact To learn more about the Advanced Manufacturing Collaborative or the Savannah River National Laboratory, contact: Charles Meyers 803-725-3020 Chuck.Meyers@srnl.doe.gov Thad Adams 803-725-5510 Thad.Adams@srnl.doe.gov Steven Tibrea 803-725-3978 Steven.Tibrea@srnl.doe.gov Lana Patterson Corporate Communications Savannah River National Laboratory 803-725-4396 Lana.Patterson

  15. Contact Us | Argonne National Laboratory

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

    Information Administration (EIA) Contact Us Natural Gas Monthly Contacts The Natural Gas Monthly (NGM) is prepared in the Office of Oil, Gas, and Coal Supply Statistics, under the direction of Doug MacIntyre. Natural Gas Production Jeffrey Little ...........................202.586.6284 Supplemental Gaseous Fuels Jennifer Wade .......................202.586.4749 Imports and Exports Jose Villar .............................202.586.9613 Consumption and Consumer Prices Jennifer Wade

  16. Contact Information | The Ames Laboratory

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

    Contact Information Contact Information Human Resources Office 294-2680 151 TASF Lynnette Witt Interim Director 294-5740 Classification and Hiring HR Policies and interpretation DOE Reporting Performance Management Talent Acquisition and Management Visa Administration Diversity and Inclusion - EEO Reporting Labor Relations Mallory Schon Interim Asst. Director 294-8062 Labor Relations - Contract Performance Management FMLA Administration and Onboarding Classification and Hiring Talent Acquisition

  17. Method for lubricating contacting surfaces

    DOE Patents [OSTI]

    Dugger, Michael T.; Ohlhausen, James A.; Asay, David B.; Kim, Seong H.

    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.

  18. 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.

  19. 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.

  20. Microwave-triggered laser switch

    DOE Patents [OSTI]

    Piltch, Martin S.

    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. 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.

  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. Optical switching system and method

    DOE Patents [OSTI]

    Ranganathan, Radha; Gal, Michael; Taylor, P. Craig

    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.

  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. 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 Y12 NHC community coordinator: Anna Lisa Conover Work: 865.574.3615...

  6. 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:...

  7. 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 *...

  8. Stable nonlinear Mach-Zehnder fiber switch

    DOE Patents [OSTI]

    Digonnet, Michel J. F.; Shaw, H. John; Pantell, Richard H.; Sadowski, Robert W.

    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.

  9. 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.

  10. 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.

  11. 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.

  12. EERE Communications Contacts | Department of Energy

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

    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

  13. Magnetic switch coupling to synchronize magnetic modulators

    DOE Patents [OSTI]

    Reed, Kim W.; Kiekel, Paul

    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.

  14. 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.

  15. 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.

  16. 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...

  17. 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...

  18. 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:...

  19. Contact Us - HPMC Occupational Health Services

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

    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...

  20. Contact Us | Argonne Leadership Computing Facility

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

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

  1. 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...

  2. CONTACTS FOR INFORMATION MANAGEMENT: Forms & Records | Department...

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

    CONTACTS FOR INFORMATION MANAGEMENT: Forms & Records CONTACTS FOR INFORMATION MANAGEMENT: Forms & Records Maria Levesque, Director Enterprise Records Management Division (IM-23) ...

  3. 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.

  4. Contact Us | Department of Energy

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

    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 Department's media

  5. 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,

  6. 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

  7. 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

  8. 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

  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 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

  10. 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

  11. 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.

  12. Contact Jefferson Lab | Jefferson Lab

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

    Contact Jefferson Lab General Inquiries 757-269-7100 News Media Inquiries 757-269-7689 Security/Emergency 757-269-5822 Status Information 757-234-6236 Street Address 12000 Jefferson Avenue Newport News, VA 23606 E-Mail Address jlabinfo@jlab.org To search the lab's staff directory, click here. Contact Page Visiting researchers - dubbed Users - come from across the country and around the world to use the facilities at Jefferson Lab in order to carry out basic physics experiments. Additional Links

  13. 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:

  14. Contact Us | Argonne National Laboratory

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

    Contact Us Contact Us Division Director Supratik Guha Phone: 630-252-7740 Deputy Division Director Tijana Rajh Phone: 630.252.5334 Fax: 630.252.6866 Assistant Division Director Deborah O'Rourke Phone: 630.252.3810 Fax: 630.252.6866 Associate Division Director/ CNM User Programs & Operations Katie Carrado Gregar Phone: 630-252-7968 Fax: 630-252-6866 Executive Secretary Laurie Eichberger Phone: 630.252.7570 Fax: 630.252.6866 Manager, Building & Systems Operations Ron Tollner Phone:

  15. Properties and features of structure formation CuCr-contact alloys in electron beam cladding

    SciTech Connect (OSTI)

    Durakov, Vasiliy G.; Dampilon, Bair V. E-mail: gnusov@rambler.ru; Gnyusov, Sergey F. E-mail: gnusov@rambler.ru

    2014-11-14

    The microstructure and properties of the contact CuCr alloy produced by electron-beam cladding have been investigated. The effect of the electron beam cladding parameters and preheating temperature of the base metal on the structure and the properties of the coatings has been determined. The bimodal structure of the cladding coating has been established. The short circuit currents tests have been carried out according to the Weil-Dobke synthetic circuit simulating procedure developed for vacuum circuit breakers (VCB) test in real electric circuits. Test results have shown that the electron beam cladding (EBC) contact material has better breaking capacity than that of commercially fabricated sintered contact material. The application of the technology of electron beam cladding for production of contact material would significantly improve specific characteristics and reliability of vacuum switching equipment.

  16. Contacts

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

    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...

  17. Contact

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

    Consumption & Efficiency Glossary › FAQS › Overview Data Residential Energy Consumption Survey data Commercial Energy Consumption Survey data Manufacturing Energy Consumption Survey data Vehicle Energy Consumption Survey data Energy intensity Consumption summaries Average cost of fossil-fuels for electricity generation All consumption & efficiency data reports Analysis & Projections Major Topics Most popular All sectors Commercial buildings Efficiency Manufacturing Projections

  18. Contacts:

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

    These materials are essential in many modern clean-energy technologies - such as wind turbines, solar panels, electric vehicles, and energy-efficient lighting. The CMI's research...

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

    SciTech Connect (OSTI)

    Bory, Benjamin F.; Janssen, René 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 density–electroluminescence–voltage characteristics can qualitatively be explained. The interpretation is corroborated by unipolar memristive switching and by bias dependent reflection measurements.

  20. 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.

  1. 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.

  2. 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.

  3. Gas mixtures for spark gap closing switches

    DOE Patents [OSTI]

    Christophorou, Loucas G.; McCorkle, Dennis L.; Hunter, Scott R.

    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.

  4. 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.

  5. Transparent electrode for optical switch

    DOE Patents [OSTI]

    Goldhar, Julius; Henesian, Mark A.

    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.

  6. 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

  7. 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...

  8. Energy Materials Network Contacts | Department of Energy

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

    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,

  9. 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.

  10. 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.

  11. Switched-capacitor isolated LED driver

    DOE Patents [OSTI]

    Sanders, Seth R.; Kline, Mitchell

    2016-03-22

    A switched-capacitor voltage converter which is particularly well-suited for receiving a line voltage from which to drive current through a series of light emitting diodes (LEDs). Input voltage is rectified in a multi-level rectifier network having switched capacitors in an ascending-bank configuration for passing voltages in uniform steps between zero volts up to full received voltage V.sub.DC. A regulator section, operating on V.sub.DC, comprises switched-capacitor stages of H-bridge switching and flying capacitors. A current controlled oscillator drives the states of the switched-capacitor stages and changes its frequency to maintain a constant current to the load. Embodiments are described for isolating the load from the mains, utilizing an LC tank circuit or a multi-primary-winding transformer.

  12. 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.

  13. VPP POINTS OF CONTACT | Department of Energy

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

    VPP 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)

  14. 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

  15. Gas mixtures for spark gap closing switches (Patent) | DOEPatents

    Office of Scientific and Technical Information (OSTI)

    Gas mixtures for spark gap closing switches Title: Gas mixtures for spark gap closing switches Gas mixtures for use in spark gap closing switches comprised of fluorocarbons and low ...

  16. Ternary gas mixture for diffuse discharge switch (Patent) | DOEPatents

    Office of Scientific and Technical Information (OSTI)

    Ternary gas mixture for diffuse discharge switch Title: Ternary gas mixture for diffuse discharge switch A new diffuse discharge gas switch wherein a mixture of gases is used to ...

  17. 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...

  18. University of Delaware | Contact CCEI

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

    Contact Information: The administrative offices of CCEI are located inside the Interdisciplinary Science and Engineering Laboratory (ISE Lab) at the University of Delaware. Address Catalysis Center for Energy Innovation University of Delaware 221 Academy Street Newark, DE 19716 Phone Number (302) 831-1628 Email efrc-info@udel.edu Visitors A downloadable PDF of the campus parking map is available. For hotel accommodations, please visit the University's visitor page.

  19. Contact Information | The Ames Laboratory

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

    Contact Information At each of NNSA's eight sites, leading-edge research and development is carried out on key national security technologies critical to the United States and its allies. Programs include science, technology and engineering essential to sustaining the nation's arsenal of nuclear weapons, plus a wide array of work on other efforts for the Departments of Defense and Homeland Security, among others, plus exquisite support to the Intelligence Community. The NNSA enterprise is home

  20. Contacts | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Computing Contacts ASC Program Managers - Headquarters Acting Director, Office of Advanced Simulation and Computing and Institutional Research and Development, NA-114 Douglas Wade Robert Weaver Erich Rummel Emily Simpson Anita McGhee Adam Boyd - Physics and Engineering Models, Integrated Codes, and Verification and Validation Program Manager Thuc Hoang - Computational Systems and Software Environment Program Manager Alexis Blanc - Facility Operations and User Support Program Manager Lucille

  1. Contact DMSE | The Ames Laboratory

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

    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 Development 126 Metals Development 125 Metals Development 305 TASF mjkramer@ameslab.gov elsner@ameslab.gov jdredla@ameslab.gov swiley@ameslab.gov Alisa Sivils Administrative Specialist II 515-294-5011 107 MD MPC Cost Center Coordination E-Beam Cost Center Coordination FWP Budget Oversight Bev Carstensen Secretary II

  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. Hybrid switch for resonant power converters (Patent) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Patent: Hybrid switch for resonant power converters Citation Details In-Document Search Title: Hybrid switch for resonant power converters You are accessing a document from the ...

  4. 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...

  5. 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.

  6. 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.

  7. 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.

  8. Solar cell contact formation using laser ablation

    SciTech Connect (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.

  9. 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.

  10. 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

  11. TPA Agency Contacts - Hanford Site

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

    the Iran Deal at Wilson Center | Department of Energy TOMORROW: Energy Secretary Moniz to Discuss Nuclear Non-Proliferation and the Iran Deal at Wilson Center TOMORROW: Energy Secretary Moniz to Discuss Nuclear Non-Proliferation and the Iran Deal at Wilson Center February 1, 2016 - 2:21pm Addthis News Media Contact 202-586-4940 DOENews@hq.doe.gov WASHINGTON - Tomorrow, U.S. Secretary of Energy Ernest Moniz will participate in a Director's Forum on the importance of nuclear non-proliferation

  12. 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.

  13. 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...

  14. 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...

  15. 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...

  16. 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.

  17. 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 ...

  18. Field Facilities Contacts for Printing and Mail

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

    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

  19. 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.

  20. 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

  1. 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

  2. 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...

  3. 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...

  4. 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 VPP POINTS OF CONTACT

  5. 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

  6. 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

  7. 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

  8. 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

  9. 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

  10. Beryllium Program Points of Contact - Hanford Site

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

    Program Points of Contact About Us Beryllium Program Beryllium Program Points of Contact Beryllium Facilities & Areas Beryllium Program Information Hanford CBDPP Committee Beryllium FAQs Beryllium Related Links Hanford Beryllium Awareness Group (BAG) Program Performance Assessments Beryllium Program Feedback Beryllium Health Advocates Primary Contractors/Employers Medical Testing and Surveillance Facilities General Resources Beryllium Program Points of Contact Email Email Page | Print Print

  11. 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 Spots Contact Hanford Fire Department Contact Hanford Fire Department Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size HanfordFire@rl.gov

  12. Contact Us | Photosynthetic Antenna Research Center

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

    Data Explorer Contact Us Contact Us If you have a question or comment about DOE Data Explorer, check to see if it is on our list of frequently asked questions. If your question isn't answered there, you may contact us using the information below. Thanks in advance. Your help is appreciated. Contact us by email Email ddecomments@osti.gov NOTE: Email messages are answered Monday - Friday, 9 a.m. - 4 p.m. We do our best to respond within 48 hours. Contact us by phone Phone Phone (865)-241-5275

  13. Single-contact tunneling thermometry

    DOE Patents [OSTI]

    Maksymovych, Petro

    2016-02-23

    A single-contact tunneling thermometry circuit includes a tunnel junction formed between two objects. Junction temperature gradient information is determined based on a mathematical relationship between a target alternating voltage applied across the junction and the junction temperature gradient. Total voltage measured across the junction indicates the magnitude of the target alternating voltage. A thermal gradient is induced across the junction. A reference thermovoltage is measured when zero alternating voltage is applied across the junction. An increasing alternating voltage is applied while measuring a thermovoltage component and a DC rectification voltage component created by the applied alternating voltage. The target alternating voltage is reached when the thermovoltage is nullified or doubled by the DC rectification voltage depending on the sign of the reference thermovoltage. Thermoelectric current and current measurements may be utilized in place of the thermovoltage and voltage measurements. The system may be automated with a feedback loop.

  14. 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.

  15. 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.

  16. Nanoeletromechanical switch and logic circuits formed therefrom

    DOE Patents [OSTI]

    Nordquist, Christopher D.; Czaplewski, David A.

    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.

  17. 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.

  18. Magnetic switch for reactor control rod

    DOE Patents [OSTI]

    Germer, John H.

    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.

  19. EIA-Voluntary Reporting of Greenhouse Gases Program - Contact

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

    Contact Voluntary Reporting of Greenhouse Gases Program Contact For more information on the Voluntary Reporting of Greenhouse Gases Program, contact us via e-mail, phone, fax, or ...

  20. 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...

  1. 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...

  2. 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...

  3. 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...

  4. 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 May 2016 Contact list for Technical Standards Managers in DOE, Field offices and National ...

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

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

    Contact About About Home Organization Budget Field Offices Federal Advisory ... Resources Contact Contact Information Office of Science U.S. Department of Energy 1000 ...

  6. Procuring Solar Energy Guide Contacts | Department of Energy

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

    Procuring Solar Energy Guide Contacts Procuring Solar Energy Guide Contacts Contact information for the Procuring Solar Energy: A Guide for Federal Facility Decision Makers is ...

  7. 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.

  8. 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.

  9. Explosive-driven, high speed, arcless switch

    DOE Patents [OSTI]

    Skogmo, Phillip J.; Tucker, Tillman J.

    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.

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

    DOE Patents [OSTI]

    El-Sharkawi, Mohamed A.; Andexler, George; Silberkleit, Lee I.

    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).

  11. 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

  12. 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

  13. Media Release Media Contact FOR IMMEDIATE RELEASE...

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

    Media Release Media Contact FOR IMMEDIATE RELEASE Heather Rasmussen September 22, 2011 Communication Specialist (801) 819-7623 hrasmussen@wecc.biz WECC releases its first-ever ...

  14. 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

  15. 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

  16. 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

  17. 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...

  18. 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 ...

  19. 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.

  20. 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.

  1. 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.

  2. DOE Headquarters Contact Information: Employee Concerns Program...

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

    Employee Concerns Program http:energy.govdiversity 1 DOE Headquarters Contact Information: Employee Concerns Program Patricia Zarate Phone: 202-586-2248 Fax: 202-586-3075 ...

  3. Contacts and Staff | Department of Energy

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

    Contacts and Staff Contacts and Staff Contacts Contact the U.S. Department of Energy (DOE) Office of Indian Energy by mail, email, or phone. Washington, D.C. DOE Office of Indian Energy 1000 Independence Ave. SW Room 8E-060 Washington, D.C. 20585 Help Desk Phone: 720-356-1352 Email: tribal@ee.doe.gov Leadership Christopher Clark Deschene Director, Office of Indian Energy Policy and Programs Christopher Clark Deschene (Navajo Nation) is the director of the Office of Indian Energy. Mr. Deschene

  4. 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...

  5. 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...

  6. 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...

  7. 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...

  8. 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...

  9. 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...

  10. 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...

  11. 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....

  12. 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...

  13. 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...

  14. 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...

  15. ARM - ARM Education and Outreach Contact Information

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

    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 ...

  16. 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

  17. Laboratory Equipment Donation Program - Contact Us

    Office of Scientific and Technical Information (OSTI)

    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 ...

  18. Contacts: Alex King, Director, Critical Materials Institute,...

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

    Institute researchers named Most Influential Scientific Minds of 2014 Contacts: Alex King, Director, Critical Materials Institute, (515) 296-4505 Laura Millsaps, Public Affairs,...

  19. Next of Kin and Emergency Contact Procedures

    Broader source: Energy.gov [DOE]

    DOE procedures for the maintenance of an employees emergency contact information and for the release of employees status information to family and friends in an emergency event.

  20. Administrative Contacts | Stanford Synchrotron Radiation Lightsource

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

    Administrative Contacts Business and Administration Stephanie Carlson SSRL Business Manager x2033 Natalie Cramar SSRL Financial Planner Budgets, Proposals, Financial planning,...

  1. 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.

  2. 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...

  3. 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...

  4. EV Everywhere: Contact Us | Department of Energy

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

    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 ...

  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. Q-switched Raman laser system

    DOE Patents [OSTI]

    George, E.V.

    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 predeterimined frequency nu = nu/sub O/, to ultimately produce a Raman or Brillouin pulse at frequency nu = nu/sub O/ +- nu /sub Stokes/.

  7. Q-Switched Raman laser system

    DOE Patents [OSTI]

    George, E. Victor

    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.

  8. Isolated and soft-switched power converter

    DOE Patents [OSTI]

    Peng, Fang Zheng; Adams, Donald Joe

    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.

  9. Optically initiated silicon carbide high voltage switch

    DOE Patents [OSTI]

    Caporaso, George J.; Sampayan, Stephen E.; Sullivan, James S.; Sanders; David M.

    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.

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

    DOE Patents [OSTI]

    Kalinin, Sergei V.; Baddorf, Arthur P.; Lee, Ho Nyung; Shin, Junsoo; Gruverman, Alexei L.; Karapetian, Edgar; Kachanov, Mark

    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.

  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. Communication Standards Website Contact | Department of Energy

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

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

  13. 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

  14. 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.

  15. Contact Us | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    Contact Us If you have questions about activities at the Sandia Field Office, please contact the SFO Public Affairs Director at (505) 845-5264. Our mailing address is: U. S. Department of Energy, National Nuclear Security Administration, Sandia Field Office, P.O. Box 5400, Albuquerque, NM 87185

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

    Office of Scientific and Technical Information (OSTI)

    Country of Publication: United States Language: English Subject: 42 ENGINEERING; 77 NANOSCIENCE AND NANOTECHNOLOGY; FABRICATION; PERFORMANCE; SWITCHES; TESTING; NANOSTRUCTURES; ...

  17. RFLMA Contact Record 2015-01 ROCKY FLATS SITE REGULATORY CONTACT RECORD 2015-01

    Office of Legacy Management (LM)

    5-01 ROCKY FLATS SITE REGULATORY CONTACT RECORD 2015-01 Purpose: Reportable condition for uranium 12-month rolling average at Point of Compliance WALPOC (this Contact Record supersedes RFLMA CR 2014-10) Contact Record Approval Date: January 14, 2015 Site Contact(s)/Affiliation(s): Scott Surovchak, U.S. Department of Energy (DOE); George Squibb, Linda Kaiser, David Ward, Stoller Newport News Nuclear, Inc., (SN3), a wholly owned subsidiary of Huntington Ingalls Industries, Inc. Regulatory

  18. 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.

  19. 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

  20. 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 /

  1. 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 there, you may contact us using the information below. Thanks in advance. Your help is appreciated. Email NOTE: Email messages are answered Monday - Friday, 9 a.m. - 4 p.m. We do our best to respond within 48 hours. Phone Phone (865) 241-4615 Mail U.S. Department of Energy Office of Scientific and Technical Information

  2. DOE Community Transition Contacts | Department of Energy

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

    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

  3. Hybrid emitter all back contact solar cell

    DOE Patents [OSTI]

    Loscutoff, Paul; Rim, Seung

    2016-04-12

    An all back contact solar cell has a hybrid emitter design. The solar cell has a thin dielectric layer formed on a backside surface of a single crystalline silicon substrate. One emitter of the solar cell is made of doped polycrystalline silicon that is formed on the thin dielectric layer. The other emitter of the solar cell is formed in the single crystalline silicon substrate and is made of doped single crystalline silicon. The solar cell includes contact holes that allow metal contacts to connect to corresponding emitters.

  4. 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.

  5. 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

  6. 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

  7. 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.

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

    DOE Patents [OSTI]

    Powell, James G.

    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.

  9. 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.

  10. 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.

  11. 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.

  12. 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.

  13. Multiple acousto-optic q-switch

    DOE Patents [OSTI]

    Deason, Vance A.

    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.

  14. Methods for resistive switching of memristors

    DOE Patents [OSTI]

    Mickel, Patrick R.; James, Conrad D.; Lohn, Andrew; Marinella, Matthew; Hsia, Alexander H.

    2016-05-10

    The present invention is directed generally to resistive random-access memory (RRAM or ReRAM) devices and systems, as well as methods of employing a thermal resistive model to understand and determine switching of such devices. In particular example, the method includes generating a power-resistance measurement for the memristor device and applying an isothermal model to the power-resistance measurement in order to determine one or more parameters of the device (e.g., filament state).

  15. HIGH VOLTAGE, HIGH CURRENT SPARK GAP SWITCH

    DOE Patents [OSTI]

    Dike, R.S.; Lier, D.W.; Schofield, A.E.; Tuck, J.L.

    1962-04-17

    A high voltage and current spark gap switch comprising two main electrodes insulatingly supported in opposed spaced relationship and a middle electrode supported medially between the main electrodes and symmetrically about the median line of the main electrodes is described. The middle electrode has a perforation aligned with the median line and an irradiation electrode insulatingly supported in the body of the middle electrode normal to the median line and protruding into the perforation. (AEC)

  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. 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...

  19. 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...

  20. 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...

  1. 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...

  2. 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...

  3. 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...

  4. 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....

  5. 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...

  6. 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...

  7. 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...

  8. 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.

  9. Front contact solar cell with formed emitter

    DOE Patents [OSTI]

    Cousins, Peter John

    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.

  10. Contact Us | National Nuclear Security Administration

    National Nuclear Security Administration (NNSA)

    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. ...

  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. 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. 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.

  14. EERE-InformationCenterContact-PIA.pdf

    Energy Savers [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

    About Us » Budget

  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. 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...

  17. Switch Switch

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

    Swimming Pool Covers Swimming Pool Covers Covering a pool when it is not in use is the single most effective means of reducing pool heating costs. | Photo courtesy of Aquatherm Industries. Covering a pool when it is not in use is the single most effective means of reducing pool heating costs. | Photo courtesy of Aquatherm Industries. You can significantly reduce swimming pool heating costs by using a pool cover. On the following pages, see the tables showing the costs of heating pools with and

  18. DOE Radiation Records Contacts List | Department of Energy

    Energy Savers [EERE]

    Radiation Records Contacts List DOE Radiation Records Contacts List March 2, 2016 DOE radiation records contact list for individuals to obtain records of occupational exposure directly from a DOE site. PDF icon DOE Radiation Records Contacts List More Documents & Publications A Basic Overview of the Energy Employees Occupational Illness Compensation Program DOE-STD-1095-2011 Privacy Act Officers Contact List

  19. 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 kΩ·μm from 2.1 kΩ·μm as the peripheral length increased from 312 to 792 μm. 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.

  20. 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.

  1. 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...

  2. Points of Contact for FEOSH Program at Field Sites | Department...

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

    Points of Contact for FEOSH Program at Field Sites Points of Contact for FEOSH Program at Field Sites U.S. Department of Energy (DOE) Points of contact (POC) for Federal Employee...

  3. GaAs photoconductive semiconductor switch

    DOE Patents [OSTI]

    Loubriel, G.M.; Baca, A.G.; Zutavern, F.J.

    1998-09-08

    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 is disclosed. 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. 5 figs.

  4. 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.

  5. 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.

  6. 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.

  7. 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

  8. 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.

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

    DOE Patents [OSTI]

    Wasielewski, Michael R.; Gaines, George L.; Niemczyk, Mark P.; Johnson, Douglas G.; Gosztola, David J.; O'Neil, Michael P.

    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.

  10. 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.

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

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

    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

  12. Current-level triggered plasma-opening switch

    DOE Patents [OSTI]

    Mendel, Clifford W.

    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.

  13. 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.

  14. 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.

  15. 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...

  16. 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...

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

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

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

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

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

    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...

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

    Open Energy Info (EERE)

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

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

    Open Energy Info (EERE)

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

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

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

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

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

    Office of Environmental Management (EM)

    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...

  3. Central Characterization Program (CCP) Contact-Handled (CH) TRU...

    Office of Environmental Management (EM)

    Contact-Handled (CH) TRU Waste Certification and Waste Information SystemWaste Data System (WWISWDS) Data Entry Central Characterization Program (CCP) Contact-Handled (CH) TRU...

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

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

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

  5. Photovoltaic Electrical Contact and Cell Coating Basics | Department...

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

    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, ...

  6. Non-contact passive temperature measuring system and method of...

    Office of Scientific and Technical Information (OSTI)

    Non-contact passive temperature measuring system and method of operation using micro-mechanical sensors Title: Non-contact passive temperature measuring system and method of ...

  7. Federal Energy Management Program Contacts | Department of Energy

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

    Federal Energy Management Program Contacts Contact information is available for Federal Energy Management Program (FEMP) leadership and staff members. The program is directed by ...

  8. DOE Research and Development Accomplishments Contact Us

    Office of Scientific and Technical Information (OSTI)

    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

  9. Tribal Points of Contacts | Department of Energy

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

    Points of Contacts Tribal Points of Contacts US DOE-Office of Environmental Management 1000 Independence Avenue, SW Washington, DC 20585 ph: (202) 586-5944 fax: (202) 586-5000 Richland Operations Office- Hanford Indian Nations Program P.O. Box 550- MSIN A7-75 Richland, WA 99352 ph: (509) 376-6332 fax: (509) 376-1563 West Valley Demonstration Project Tribal Government Liaison P.O. Box 191- 10282 Rock Springs Road West Valley, NY 14171 ph: (716) 942-4629 fax: (716) 942-2068 Albuquerque Operations

  10. 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

  11. Single-crystalline monolayer and multilayer graphene nano switches

    SciTech Connect (OSTI)

    Li, Peng; Cui, Tianhong; Jing, Gaoshan; Zhang, Bo; Sando, Shota

    2014-03-17

    Growth of monolayer, bi-layer, and tri-layer single-crystalline graphene (SCG) using chemical vapor deposition method is reported. SCG's mechanical properties and single-crystalline nature were characterized and verified by atomic force microscope and Raman spectroscopy. Electro-mechanical switches based on mono- and bi-layer SCG were fabricated, and the superb properties of SCG enable the switches to operate at pull-in voltage as low as 1 V, and high switching speed about 100 ns. These devices exhibit lifetime without a breakdown of over 5000 cycles, far more durable than any other graphene nanoelectromechanical system switches reported.

  12. Modeling Combustion Control for High Power Diesel Mode Switching...

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

    Modeling Combustion Control for High Power Diesel Mode Switching Poster presentation given at the 16th Directions in Engine-Efficiency and Emissions Research (DEER) Conference in ...

  13. A New Class of Switched Reluctance Motors without Permanent Magnets...

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

    Motors without Permanent Magnets A New Class of Switched Reluctance Motors without Permanent Magnets 2011 DOE Hydrogen and Fuel Cells Program, and Vehicle Technologies Program ...

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. 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

  19. Contact the Sustainability Performance Office | Department of Energy

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

    Home » About » Contact the Sustainability Performance Office Contact the Sustainability Performance Office The U.S. Department of Energy Sustainability Performance Office oversees departmental sustainability efforts required by Executive Order 13693 and related Federal laws and regulations. For additional information, contact the Sustainability Performance Office, 202-586-8645. SPO Home About Contact Us

  20. 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