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Sample records for access roads switch

  1. Montana - Access Road Easement Policy | Open Energy Information

    Open Energy Info (EERE)

    Access Road Easement Policy Jump to: navigation, search OpenEI Reference LibraryAdd to library General: Montana - Access Road Easement Policy Author Montana Department of...

  2. EA-1980: Spar Canyon-Round Valley Access Road System Improvements...

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

    80: Spar Canyon-Round Valley Access Road System Improvements, Custer County, Idaho EA-1980: Spar Canyon-Round Valley Access Road System Improvements, Custer County, Idaho Summary...

  3. Floodplain and Wetlands Assessment for Construction of a Second Full Service Access Road over Lena Gulch

    Broader source: Energy.gov [DOE]

    Floodplain and Wetlands Assessment for Construction of a Second Full Service Access Road over Lena Gulch from South Golden Road to the National Renewable Energy Laboratory’s South Table Mountain Complex, Golden, Colorado.

  4. Microsoft Word - Class 1 S Access Road-031611 FINAL.doc

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

    Mr. Bearzi: Enclosed is a Class 1 Permit Modification Notification to: * Add South Access Road for Transportation of TRU Mixed Waste We certify under penalty of law that this...

  5. New, stricter Pajarito Road access rules to go into effect Aug. 12

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

    New, stricter Pajarito Road access rules New, stricter Pajarito Road access rules to go into effect Aug. 12 Laboratory personnel and subcontractors will no longer be able to "vouch" for non-Laboratory personnel such as family members. July 16, 2013 Los Alamos National Laboratory sits on top of a once-remote mesa in northern New Mexico with the Jemez mountains as a backdrop to research and innovation covering multi-disciplines from bioscience, sustainable energy sources, to plasma

  6. EA-1941: Boyer-Tillamook Access Road Improvement Project, Tillamook and Yamhill Counties, Oregon

    Broader source: Energy.gov [DOE]

    BPA prepared an EA, FONSI, and Mitigation Action Plan to assess the potential environmental impacts of proposed improvements to 13 miles of access roads for its existing 115-kV Boyer-Tillamook No. 1 Transmission Line in Tillamook and Yamhill counties, Oregon. Associated activities would include resurfacing roads, adding drainage, widening 3 miles of road, constructing 0.1 mile of new road, maintaining culverts, and constructing outlet ditches and retaining walls. In addition, new bridges would be built, and culverts that currently block fish passage for anadromous and resident fish would be replaced. Additional information is available at the project website: http://efw.bpa.gov/environmental_services/Document_Library/Boyer-Tillamook/.

  7. EA-1980: Spar Canyon-Round Valley Access Road System Improvements, Custer County, Idaho

    Broader source: Energy.gov [DOE]

    Bonneville Power Administration is preparing an EA to assess potential environmental impacts of proposed improvements to the access road system for its existing Spar Canyon-Round Valley Transmission Line located on Bureau of Land Management land in Custer County, Idaho.

  8. Microsoft Word - Class 1 S Access Road-031611 FINAL.doc

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

    Carlsbad. New Mexico 88221 Mr. James Bearzi, Chief Hazardous Waste Bureau New Mexico Environment Department 2905 Rodeo Park Drive East, Building 1 Santa Fe, New Mexico 87505-6303 MAR 1 7 2011 Subject: Notification of a Class 1 Permit Modification to the Hazardous Waste Facility Permit, Permit Number: NM4890139088* TSDF Dear Mr. Bearzi: Enclosed is a Class 1 Permit Modification Notification to: * Add South Access Road for Transportation of TRU Mixed Waste We certify under penalty of law that this

  9. EA-0904: Access Road from State Route 240 to the 200 West Area Hanford Site, Richland, Washington

    Broader source: Energy.gov [DOE]

    This EA evaluates the environmental impacts of a proposal to construct an access road on the U.S. Department of Energy's Hanford Site in Richland, Washington, from State Route 240 to Beloit Avenue...

  10. Utility-Interconnected Photovoltaic Systems: Evaluating the Rationale for the Utility-Accessible External Disconnect Switch

    SciTech Connect (OSTI)

    Coddington, M.; Margolis, R.M.; Aabakken, J.

    2008-01-01

    The utility-accessible alternating current (AC) external disconnect switch (EDS) for distributed generators, including photovoltaic (PV) systems, is a hardware feature that allows a utility?s employees to manually disconnect a customer-owned generator from the electricity grid. This paper examines the utility-accessible EDS debate in the context of utility-interactive PV systems for residential and small commercial installations. It also evaluates the rationale for EDS requirements.

  11. Evaluating the Rationale for the Utility-Accessible External Disconnect Switch: Preprint

    SciTech Connect (OSTI)

    Coddington, M. H.

    2008-05-01

    This paper describes the utility-accessible alternating current (AC) external disconnect switch (EDS) for distributed generators, including photovoltaic (PV) systems, which is a hardware feature that allows a utility's employees to manually disconnect a customer-owned generator from the electricity grid.

  12. Voltage induced magnetostrictive switching of nanomagnets: Strain assisted strain transfer torque random access memory

    SciTech Connect (OSTI)

    Khan, Asif Nikonov, Dmitri E.; Manipatruni, Sasikanth; Ghani, Tahir; Young, Ian A.

    2014-06-30

    A spintronic device, called the “strain assisted spin transfer torque (STT) random access memory (RAM),” is proposed by combining the magnetostriction effect and the spin transfer torque effect which can result in a dramatic improvement in the energy dissipation relative to a conventional STT-RAM. Magnetization switching in the device which is a piezoelectric-ferromagnetic heterostructure via the combined magnetostriction and STT effect is simulated by solving the Landau-Lifshitz-Gilbert equation incorporating the influence of thermal noise. The simulations show that, in such a device, each of these two mechanisms (magnetostriction and spin transfer torque) provides in a 90° rotation of the magnetization leading a deterministic 180° switching with a critical current significantly smaller than that required for spin torque alone. Such a scheme is an attractive option for writing magnetic RAM cells.

  13. Switch Switch

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

    Switch Switch Run end at 6pm at 6pm at 6am 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Mon Tue ...

  14. Accessibility

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

    Web Policies Accessibility Accessibility LANL places a high degree of emphasis on user ... Contact Web Team Email Reaching the broadest possible audience Los Alamos National ...

  15. Effect of embedded metal nanocrystals on the resistive switching characteristics in NiN-based resistive random access memory cells

    SciTech Connect (OSTI)

    Yun, Min Ju; Kim, Hee-Dong; Man Hong, Seok; Hyun Park, Ju; Su Jeon, Dong; Geun Kim, Tae

    2014-03-07

    The metal nanocrystals (NCs) embedded-NiN-based resistive random access memory cells are demonstrated using several metal NCs (i.e., Pt, Ni, and Ti) with different physical parameters in order to investigate the metal NC's dependence on resistive switching (RS) characteristics. First, depending on the electronegativity of metal, the size of metal NCs is determined and this affects the operating current of memory cells. If metal NCs with high electronegativity are incorporated, the size of the NCs is reduced; hence, the operating current is reduced owing to the reduced density of the electric field around the metal NCs. Second, the potential wells are formed by the difference of work function between the metal NCs and active layer, and the barrier height of the potential wells affects the level of operating voltage as well as the conduction mechanism of metal NCs embedded memory cells. Therefore, by understanding these correlations between the active layer and embedded metal NCs, we can optimize the RS properties of metal NCs embedded memory cells as well as predict their conduction mechanisms.

  16. Curecanti-Blue Mesa-Salida 115-kV transmission lines access roads rehabilitation, maintenance, and construction project. Environmental Assessment

    SciTech Connect (OSTI)

    Not Available

    1993-07-01

    Western Area Power Administration (Western) is a power marketing agency of the US Department of Energy, with jurisdiction in 15 western states. The Salt Lake City Area (SLCA) of Western performs the agency`s mission in parts of Colorado, New Mexico, Texas, Utah, Arizona, Wyoming, and Nevada. As part of its mission, Western owns, operates, and maintains a system of transmission lines for transmitting bulk electrical energy from points of generation to and between delivery points. Part of that system in southwestern Colorado includes the Blue Mesa-Curecanti and Blue Mesa-Salida 115-kV transmission lines. Western proposes to conduct maintenance and improve its access roads for these two transmission lines. This paper discusses the impacts to the existing environment as well as the environmental consequences resulting from the maintenance and construction that is proposed.

  17. Accessibility

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

    is committed to providing access to our Web pages for individuals with disabilities. To meet this commitment, this site is built to comply with the requirements of...

  18. EPA GHG Certification of Medium- and Heavy-Duty Vehicles: Development of Road Grade Profiles Representative of US Controlled Access Highways

    SciTech Connect (OSTI)

    Wood, Eric; Duran, Adam; Burton, Evan; Gonder, Jeffrey; Kelly, Kenneth

    2015-05-12

    This report includes a detailed comparison of the TomTom national road grade database relative to a local road grade dataset generated by Southwest Research Institute and a national elevation dataset publically available from the U.S. Geological Survey. This analysis concluded that the TomTom national road grade database was a suitable source of road grade data for purposes of this study.

  19. Total ionizing dose effect of γ-ray radiation on the switching characteristics and filament stability of HfOx resistive random access memory

    SciTech Connect (OSTI)

    Fang, Runchen; Yu, Shimeng; Gonzalez Velo, Yago; Chen, Wenhao; Holbert, Keith E.; Kozicki, Michael N.; Barnaby, Hugh

    2014-05-05

    The total ionizing dose (TID) effect of gamma-ray (γ-ray) irradiation on HfOx based resistive random access memory was investigated by electrical and material characterizations. The memory states can sustain TID level ∼5.2 Mrad (HfO{sub 2}) without significant change in the functionality or the switching characteristics under pulse cycling. However, the stability of the filament is weakened after irradiation as memory states are more vulnerable to flipping under the electrical stress. X-ray photoelectron spectroscopy was performed to ascertain the physical mechanism of the stability degradation, which is attributed to the Hf-O bond breaking by the high-energy γ-ray exposure.

  20. LANL access restrictions lifted

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

    lifted LANL access restrictions lifted Vehicle access points on West Jemez Road will be open to non-badge holders. August 6, 2012 Los Alamos National Laboratory sits on top of a...

  1. Distributed road assessment system

    DOE Patents [OSTI]

    Beer, N. Reginald; Paglieroni, David W

    2014-03-25

    A system that detects damage on or below the surface of a paved structure or pavement is provided. A distributed road assessment system includes road assessment pods and a road assessment server. Each road assessment pod includes a ground-penetrating radar antenna array and a detection system that detects road damage from the return signals as the vehicle on which the pod is mounted travels down a road. Each road assessment pod transmits to the road assessment server occurrence information describing each occurrence of road damage that is newly detected on a current scan of a road. The road assessment server maintains a road damage database of occurrence information describing the previously detected occurrences of road damage. After the road assessment server receives occurrence information for newly detected occurrences of road damage for a portion of a road, the road assessment server determines which newly detected occurrences correspond to which previously detected occurrences of road damage.

  2. Influence of carbon content on the copper-telluride phase formation and on the resistive switching behavior of carbon alloyed Cu-Te conductive bridge random access memory cells

    SciTech Connect (OSTI)

    Devulder, Wouter De Schutter, Bob; Detavernier, Christophe; Opsomer, Karl; Franquet, Alexis; Meersschaut, Johan; Muller, Robert; Van Elshocht, Sven; Jurczak, Malgorzata; Goux, Ludovic; Belmonte, Attilio

    2014-02-07

    In this paper, we investigate the influence of the carbon content on the Cu-Te phase formation and on the resistive switching behavior in carbon alloyed Cu{sub 0.6}Te{sub 0.4} based conductive bridge random access memory (CBRAM) cells. Carbon alloying of copper-tellurium inhibits the crystallization, while attractive switching behavior is preserved when using the material as Cu-supply layer in CBRAM cells. The phase formation is first investigated in a combinatorial way. With increasing carbon content, an enlargement of the temperature window in which the material stays amorphous was observed. Moreover, if crystalline phases are formed, subsequent phase transformations are inhibited. The electrical switching behavior of memory cells with different carbon contents is then investigated by implementing them in 580 μm diameter dot TiN/Cu{sub 0.6}Te{sub 0.4}-C/Al{sub 2}O{sub 3}/Si memory cells. Reliable switching behavior is observed for carbon contents up to 40 at. %, with a resistive window of more than 2 orders of magnitude, whereas for 50 at. % carbon, a higher current in the off state and only a small resistive window are present after repeated cycling. This degradation can be ascribed to the higher thermal and lower drift contribution to the reset operation due to a lower Cu affinity towards the supply layer, leading cycle-after-cycle to an increasing amount of Cu in the switching layer, which contributes to the current. The thermal diffusion of Cu into Al{sub 2}O{sub 3} under annealing also gives an indication of the Cu affinity of the source layer. Time of flight secondary ion mass spectroscopy was used to investigate this migration depth in Al{sub 2}O{sub 3} before and after annealing, showing a higher Cu, Te, and C migration for high carbon contents.

  3. Cyclotron Road

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

    Innovation in the digital age 3 Manufacturing startups are hard 4 At risk of a lost generation 5 Cyclotron Road: a new model Venture capital Alternative capital Corporate acquisition 6 * 8 innovators selected from 150 registered applicants in a three week application window * 4 weeks to first experiments with Berkeley Lab * 20+ Berkeley Lab scientists have engaged with the projects * Projects have avoided millions in R&D capital expenditures and raised over $5 million in follow-on funding

  4. 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.

  5. Optical Switch

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

    seven wonders / optical switch 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

  6. 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.

  7. 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.

  8. Acceleration switch

    DOE Patents [OSTI]

    Abbin, J.P. Jr.; Devaney, H.F.; Hake, L.W.

    1979-08-29

    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.

  9. 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.

  10. 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.

  11. 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.

  12. cx-access-road-reclear.pdf

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

  13. cx-nixa-access-road.pdf

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

  14. 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.

  15. 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.

  16. Ames Lab 101: Ultrafast Magnetic Switching

    SciTech Connect (OSTI)

    Jigang Wang

    2013-04-08

    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.

  17. 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.

  18. East Avenue Truck Inspection Patterson Pass Road Vasco Road

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

    Vasco Road Thunderbird Lane Greenville Road Greenville Road Directions to the Sandia/CA - Visitor Badge Office Interstate 580 - Oakland/San Francisco, Traveling Eastbound * Exit Vasco Road South * Continue traveling South on Vasco Road for 1.1 miles * Turn left onto Patterson Pass Road * Continue traveling East on Patterson Pass Road for 1.2 miles * Turn right onto Greenville Road * Continue traveling South on Greenville Road for 1.1 miles * Turn right onto East Avenue * Follow the road as it

  19. Microsoft Word - FINAL Contact Record 2012-01 Roads Maintenance

    Office of Legacy Management (LM)

    ... Section 4.1, regarding the work proposed by the U.S. Department of Energy (DOE). ... The locations are as follows: * Location 1: Gravel road access to the Solar Ponds Plume ...

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

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

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

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

  2. East Avenue Truck Inspection Patterson Pass Road Vasco Road

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

    Sandia National Laboratories 7011 East Avenue Livermore, CA 94551 Tesla Road Interstate ... Sandia National Laboratories 7011 East Avenue Livermore, CA 94551 Tesla Road Parking To ...

  3. 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.

  4. Rapid road repair vehicle

    DOE Patents [OSTI]

    Mara, L.M.

    1998-05-05

    Disclosed is a rapid road repair vehicle capable of moving over a surface to be repaired at near normal posted traffic speeds to scan for and find at the high rate of speed, imperfections in the pavement surface, prepare the surface imperfection for repair by air pressure and vacuum cleaning, applying a correct amount of the correct patching material to effect the repair, smooth the resulting repaired surface, and catalog the location and quality of the repairs for maintenance records of the road surface. The rapid road repair vehicle can repair surface imperfections at lower cost, improved quality, at a higher rate of speed than was not heretofor possible, with significantly reduced exposure to safety and health hazards associated with this kind of road repair activities in the past. 2 figs.

  5. Rapid road repair vehicle

    DOE Patents [OSTI]

    Mara, Leo M.

    1998-01-01

    Disclosed is a rapid road repair vehicle capable of moving over a surface to be repaired at near normal posted traffic speeds to scan for and find an the high rate of speed, imperfections in the pavement surface, prepare the surface imperfection for repair by air pressure and vacuum cleaning, applying a correct amount of the correct patching material to effect the repair, smooth the resulting repaired surface, and catalog the location and quality of the repairs for maintenance records of the road surface. The rapid road repair vehicle can repair surface imperfections at lower cost, improved quality, at a higher rate of speed than was was heretofor possible, with significantly reduced exposure to safety and health hazards associated with this kind of road repair activities in the past.

  6. Road Weather Predictions

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

    Road Tripping through the Geothermal Frontier Road Tripping through the Geothermal Frontier November 18, 2015 - 9:58am Addthis Geothermal Well Head, Utah 1 of 5 Geothermal Well Head, Utah This geothermal well head is located near the University of Utah's FORGE candidate site. The area is already renewables-friendly, with a wind farm nearby. Image: Elisabet Metcalfe, EERE Snake River Plain, Idaho 2 of 5 Snake River Plain, Idaho The mountainous view captures INL's Snake River Plain candidate site

  7. 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.

  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. Radiation hard vacuum switch

    DOE Patents [OSTI]

    Boettcher, Gordon E.

    1990-03-06

    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.

  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. Rapid road repair vehicle

    DOE Patents [OSTI]

    Mara, Leo M.

    1999-01-01

    Disclosed are improvments to a rapid road repair vehicle comprising an improved cleaning device arrangement, two dispensing arrays for filling defects more rapidly and efficiently, an array of pre-heaters to heat the road way surface in order to help the repair material better bond to the repaired surface, a means for detecting, measuring, and computing the number, location and volume of each of the detected surface imperfection, and a computer means schema for controlling the operation of the plurality of vehicle subsystems. The improved vehicle is, therefore, better able to perform its intended function of filling surface imperfections while moving over those surfaces at near normal traffic speeds.

  12. Methods for resistive switching of memristors (Patent) | SciTech...

    Office of Scientific and Technical Information (OSTI)

    Title: Methods for resistive switching of memristors The present invention is directed generally to resistive random-access memory (RRAM or ReRAM) devices and systems, as well as ...

  13. Meters Roads N Streams

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

    0 Meters Roads N Streams o Openwells E3i APT Site *. TES Plants (1) E2J Other Set-Asides lEI Hydric Soils . 370 o 370 Soils Soil Series and Phase DBaB DBaC .Pk .TrB DTrC DTrD .TuE...

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. Open Access

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

    access, is a type of unrestricted access to scholarly publications that is online, free of charge to everyone and free of most copyright and licensing restrictions. Open...

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. Road to Net Zero (Presentation)

    SciTech Connect (OSTI)

    Glover, B.

    2011-05-01

    A PowerPoint presentation on NREL's Research Support Facility (RSF) and the road to achieving net zero energy for new construction.

  6. VEHICLE ACCESS PORTALS TA-48 Vicinity TA-36 Vicinity

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

    Pajarito Corridor (Map 4) VEHICLE ACCESS PORTALS TA-48 Vicinity TA-36 Vicinity Drivers of delivery vehicles entering Pajarito Road bounded by NM Highway 4 and Diamond Drive must...

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

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

    Department of Energy Advanced 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. ape011_lai_2010_o.pdf (4.46 MB) More Documents & Publications Advanced Soft Switching Inverter for Reducing Switching and Power Losses Electro-thermal-mechanical Simulation and Reliability

  8. Manually operated coded switch

    DOE Patents [OSTI]

    Barnette, Jon H.

    1978-01-01

    The disclosure relates to a manually operated recodable coded switch in which a code may be inserted, tried and used to actuate a lever controlling an external device. After attempting a code, the switch's code wheels must be returned to their zero positions before another try is made.

  9. Reflective HTS switch

    DOE Patents [OSTI]

    Martens, Jon S.; Hietala, Vincent M.; Hohenwarter, Gert K. G.

    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.

  10. 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.

  11. Remote Access

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

    Remote Access Remote Access Laboratory employees can access Research Library databases and products from offsite using our EZproxy service. This service is limited to LANL employees with active Z numbers and cryptocards. Access Electronic Collections with EZproxy Remote Access Journals - Books - Standards - Databases (WOK, etc) How to use EZproxy: From this page: Click on the icon above. From external site: Select "OFFSITE LANL Employee". Enter your Z number and Cryptocard passcode.

  12. 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 Jason Lai Virginia Polytechnic Institute and State University June 10, 2010 This presentation does not ...

  13. 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.

  14. Timber Road II | Open Energy Information

    Open Energy Info (EERE)

    Road II Jump to: navigation, search Name Timber Road II Facility Timber Road II Sector Wind energy Facility Type Commercial Scale Wind Facility Status In Service Owner Horizon Wind...

  15. 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).

  16. 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.

  17. 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.

  18. 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.

  19. 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.

  20. 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

  1. 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.

  2. 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.

  3. Boyer-Tillamook Access Road Improvement Project 1 Mitigation...

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

    If you have questions about the MAP, contact the BPA lead for the environmental review, Kara Hempy- Mayer: toll-free telephone 800-282-3713, direct telephone 503-230- 4982, or ...

  4. 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.

  5. Presentation: Cyclotron Road | Department of Energy

    Office of Environmental Management (EM)

    Cyclotron Road Presentation: Cyclotron Road The Secretary of Energy Advisory Board received a briefing on Cyclotron Road, lead by Ilan Gur, Director of Cyclotron Road, on January 26, 2016. Briefing on Cyclotron Road (4.07 MB) More Documents & Publications January 26, 2016 SEAB Meeting Minutes 3-D Printed Molds Hold Promise for Enhanced Wind Energy Manufacturing 3-D Printed Molds Hold Promise for Enhanced Wind Energy Manufacturing The Energy Department is exploring the production of wind

  6. 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.

  7. 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.

  8. 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.

  9. Accessibility | NREL

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

    making its electronic and information technologies accessible to individuals with disabilities in accordance with Section 508 of the Rehabilitation Act (29 U.S.C. 794d), as...

  10. Accessing HPSS

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

    Accessing HPSS Accessing HPSS Once you have successfully generated an HPSS token you can access NERSC's HPSS in the different ways listed below. HSI and HTAR are usually the best ways to transfer data in and out of HPSS but other methods are also included. Access Method When to use this method Features Limitations HSI When a full-featured unix-like interface is desired high performance (parallel); unix-like user interface; firewall mode client is specific to HPSS version and might not work at

  11. Accessing PDSF

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

    Accessing PDSF Accessing PDSF All the linux interactive nodes are known under the name of pdsf.nersc.gov and should be accessed via that name. To access them the ssh protocol should be used and you should make sure that a Keyboard Interactive method is available in your ssh client. You will probably also want to enable X11 forwarding with the -X or -Y option, i.e., ssh -Y pdsf.nersc.gov For more information see Interactive (login) Nodes. If you are in STAR your default unix group is rhstar (just

  12. 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.

  13. 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)

  14. 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.

  15. Magnetic switches and circuits

    SciTech Connect (OSTI)

    Nunnally, W.C.

    1982-05-01

    This report outlines the use of saturable inductors as switches in lumped-element, magnetic-pulse compression circuits is discussed and the characteristic use of each is defined. In addition, the geometric constraints and magnetic pulse compression circuits used in short-pulse, low-inductance systems are considered. The scaling of presaturation leakage currents, magnetic energy losses, and switching times with geometrical and material parameters are developed to aid in evaluating magnetic pulse compression systems in a particular application. Finally, a scheme for increasing the couping coefficient in saturable stripline transformers is proposed to enable their use in the short-pulse, high-voltage regime.

  16. 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 ...

  17. 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 ...

  18. JLab Road Work Update | Jefferson Lab

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

    Road Work Update Rattley Road will be closed Beginning July 19, Rattley Road will be closed for two weeks for repair and repaving work. The section of road is highlighted in dark yellow on this map. Everyone will need to use other entry and exit points to Jefferson Lab during this period. JLab Road Work Update: Rattley Rd. is Closed; Lawrence Dr. is Open - Effective July 19 Effective July 19, 2016: Rattley Road off of Hogan Drive is closed to all traffic, and will be closed the next two weeks

  19. Gate Access

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

    Gate Access Gate Access Print When you first arrive at the ALS, gate clearance will have been arranged for you by the User Office. Berkeley Lab employees and visiting researchers (participating guests) may arrange for gate clearance for their visitors through the Lab's Site Access Office . Please notify the Site Office by submitting a Visitor Pass Request before 3:00 p.m. on the day before the expected visit. Include the name(s) of any visitors, the time you expect them, and your name and

  20. 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.

  1. 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.

  2. Gate Access

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

    to the laboratory. Visitors from outside the U.S. should be prepared to show a valid passport. See Access to the ALS for additional information about visitor procedures at the...

  3. 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.

  4. 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.

  5. 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.

  6. Image feature based GPS trace filtering for road network generation and road segmentation

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

    Yuan, Jiangye; Cheriyadat, Anil M.

    2015-10-19

    We propose a new method to infer road networks from GPS trace data and accurately segment road regions in high-resolution aerial images. Unlike previous efforts that rely on GPS traces alone, we exploit image features to infer road networks from noisy trace data. The inferred road network is used to guide road segmentation. We show that the number of image segments spanned by the traces and the trace orientation validated with image features are important attributes for identifying GPS traces on road regions. Based on filtered traces , we construct road networks and integrate them with image features to segmentmore » road regions. Lastly, our experiments show that the proposed method produces more accurate road networks than the leading method that uses GPS traces alone, and also achieves high accuracy in segmenting road regions even with very noisy GPS data.« less

  7. 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.

  8. 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.

  9. CREE: Making the Switch

    ScienceCinema (OSTI)

    Grider, David; Palmer, John

    2014-04-09

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

  10. Advanced Vehicle Testing Activity Cold Weather On-road Testing of the Chevrolet Volt

    SciTech Connect (OSTI)

    Smart, John

    2015-03-01

    This report details cold weather on-road testing of a Chevrolet Volt. It quantifies changes in efficiency and electric range as ambient temperature changes. It will be published to INL's AVTA website as an INL technical report and will be accessible to the general public.

  11. 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.

  12. Compound semiconductor optical waveguide switch

    DOE Patents [OSTI]

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

    2003-06-10

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

  13. 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...

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. Hampton Roads Demonstration Project | Open Energy Information

    Open Energy Info (EERE)

    Project Facility Hampton Roads Demonstration Project Sector Wind energy Facility Type Offshore Wind Facility Status Proposed Developer Virginia State Government Location...

  19. Decommissioning abandoned roads to protect fish

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

    Decommissioning-abandoned-roads-to-protect-fish Sign In About | Careers | Contact | Investors | bpa.gov Search News & Us Expand News & Us Projects & Initiatives Expand Projects...

  20. 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.

  1. "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.

  2. 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.

  3. 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.

  4. 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.

  5. 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)

  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. 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.

  8. 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...

  9. 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.

  10. Predicting and Utilizing the Vehicle's Past and Futuer Road Grade...

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

    and Utilizing the Vehicle's Past and Futuer Road Grade Predicting and Utilizing the Vehicle's Past and Futuer Road Grade Predicted road grade may be used to estimate the power ...

  11. 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.

  12. 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.

  13. 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.

  14. The Digital Road to Scientific Knowledge Diffusion; A Faster...

    Office of Scientific and Technical Information (OSTI)

    The Digital Road to Scientific Knowledge Diffusion; A Faster, Better Way to Scientific Progress? Citation Details In-Document Search Title: The Digital Road to Scientific Knowledge ...

  15. Particle Measurement Methodology: Comparison of On-road and Lab...

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

    Measurement Methodology: Comparison of On-road and Lab Diesel Particle Size Distributions Particle Measurement Methodology: Comparison of On-road and Lab Diesel Particle Size ...

  16. ETA-HITP05 - HICE Vehicle Rough Road Course Test

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

    Effective November 1, 2004 "HICE Vehicle Rough Road Course Test" Prepared by Electric ... Appendices Appendix A - HICEV Rough Road Test Data Sheet 9 Appendix B - Vehicle Metrology ...

  17. ETA-HTP07 - Road Course Handling Test

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

    Effective May 1, 2004 Road Course Handling Test Prepared by Electric Transportation ... Appendix A - Hybrid Electric Vehicle Road Course Test Data Sheet 9 Appendix B - Vehicle ...

  18. ETA-UTP007 - Road Course Handling Test

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

    Road Course Handling Test Prepared by Electric Transportation Applications Prepared by: ... Appendix A - Electric Vehicle Road Course Handling Test Data Sheet 13 Appendix B - Vehicle ...

  19. ETA-HITP07 - Road Course Handling Test

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

    Effective November 1, 2004 Road Course Handling Test Prepared by Electric Transportation ... Appendix A - Hydrogen Internal Combustion Vehicle Road Course Handling Test Data Sheet 6 ...

  20. Marsh Road Power Plant Biomass Facility | Open Energy Information

    Open Energy Info (EERE)

    to: navigation, search Name Marsh Road Power Plant Biomass Facility Facility Marsh Road Power Plant Sector Biomass Facility Type Landfill Gas Location San Mateo County,...

  1. The Road to a Sustainable Energy Future | Princeton Plasma Physics...

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

    MBG Auditorium The Road to a Sustainable Energy Future Professor Emily Carter, Department ... Science on Saturday, January 31, 2015, "The Road to a Sustainable Energy Future", Prof. ...

  2. Comparison of Different Load Road Implementation Strategies on...

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

    Comparison of Different Load Road Implementation Strategies on Fuel Economy of USPS Step Vans An alternative form of measuring road loads, instead of using a chassis dynamometer ...

  3. 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.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. HCEI Road Map: 2011 Edition (Brochure)

    Office of Energy Efficiency and Renewable Energy (EERE)

    This road map outlines the 2011 key goals and strategies of the Hawaii Clean Energy Initiative, was founded based on a Memorandum of Understanding between the State of Hawaii and the U.S. Department of Energy in 2008.

  9. HCEI Road Map: 2011 Edition (Brochure)

    SciTech Connect (OSTI)

    Braccio, R.; Finch, P.

    2011-08-01

    This road map outlines the 2011 key goals and strategies of the Hawaii Clean Energy Initiative, was founded based on a Memorandum of Understanding between the State of Hawaii and the U.S. Department of Energy in 2008.

  10. Commonalities between Non-road and On-road Diesel Emissions | Department of

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

    Energy Commonalities between Non-road and On-road Diesel Emissions Commonalities between Non-road and On-road Diesel Emissions Poster presentation at the 2007 Diesel Engine-Efficiency & Emissions Research Conference (DEER 2007). 13-16 August, 2007, Detroit, Michigan. Sponsored by the U.S. Department of Energy's (DOE) Office of FreedomCAR and Vehicle Technologies (OFCVT). deer07_agrawal.pdf (94.78 KB) More Documents & Publications Nonroad SCR-Urea Study Diesel Engines: Environmental

  11. ADEC II Universal SCR Retrofit System for On-road and Off-road Diesel

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

    Engines | Department of Energy ADEC II Universal SCR Retrofit System for On-road and Off-road Diesel Engines ADEC II Universal SCR Retrofit System for On-road and Off-road Diesel Engines Presentation given at DEER 2006, August 20-24, 2006, Detroit, Michigan. Sponsored by the U.S. DOE's EERE FreedomCar and Fuel Partnership and 21st Century Truck Programs. 2006_deer_carlson.pdf (88.96 KB) More Documents & Publications DIesel Emission Control Technology Developments Cleaning Up Diesel

  12. End of the road for Roadrunner

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

    End of the road for Roadrunner End of the road for Roadrunner Roadrunner, the first supercomputer to break the once-elusive petaflop barrier-one million billion calculations per second-will be decommissioned on Sunday, March 31. March 29, 2013 Roadrunner, the first supercomputer to break the once-elusive petaflop barrier-one million billion calculations per second-will be decommissioned on Sunday, March 31. Roadrunner will be decommissioned on March 31. Contact Kevin Roark Communications Office

  13. 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.

  14. 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.

  15. 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 ...

  16. ACCESSING SUBCONTRACTOR EMPLOYMENT RECORDS

    Broader source: Energy.gov [DOE]

    Federal officials, on occasion, may seek access to contractor or subcontractor employment and personnel records. There are circumstances in which such access is appropriate and permissible. But...

  17. 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.

  18. 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.

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. 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.

  4. Looking down the road ahead | Jefferson Lab

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

    Looking down the road ahead Looking down the road ahead November 19, 2012 As humans, we are often short-sighted. Sometimes, this may be out of necessity. When it is a struggle to provide food on the table each day, it's hard to take a long view. However, in conversations and exchanges with many people in the lab, there is a desire to know what is going to come next? What does our future hold? A starting point for such a discussion might be to ask what does the present hold. Or what does the

  5. 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.

  6. 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.

  7. 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.

  8. 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.

  9. On the Road with Fuel Saving Tools | Department of Energy

    Energy Savers [EERE]

    On the Road with Fuel Saving Tools On the Road with Fuel Saving Tools May 23, 2014 - 11:07am Addthis Driving efficiently can help you save money on gas this summer.| Photo courtesy ...

  10. Health assessment for Horseshoe Road Dump, Sayreville, Middlesex County, New Jersey, Region 2. Cerclis. No. NJD980663678. Preliminary report

    SciTech Connect (OSTI)

    1995-02-07

    The Horseshoe Road site is an area of approximately 15 acres located on Horseshoe Road near the Raritan River in northern Sayreville, Middlesex County, New Jersey. The site consists of distinct areas that have been grouped together and are considered one site on the National Priorities List (NPL). These areas include: (1) Atlantic Resources, which also includes The Horseshoe Road Dump area; (2) Atlantic Development; and (3) The Sayreville Pesticide Dump. The heaviest contamination appears to be closer to the buildings and inside the fences. There is, however significant areas of contamination outside restricted areas. Of particular concern in these accessible areas are: PCB`s pesticides, eg., DDD, DDT, aldrin, endosulfan, and heptachlor; PAH`s, eg., benzo(g,h,i)perylene; and metals, e.g., arsenic, chromium, and lead. Although there are presently no completed human exposure pathways at the site, trespassers constitute a potential exposure pathway.

  11. Road Tripping through the Geothermal Frontier

    Broader source: Energy.gov [DOE]

    After more than a year since the announcement of available funding, the project teams for our Frontier Observatory for Research in Geothermal Energy (FORGE) each hosted our geothermal experts at their candidate sites this fall. Were calling it our road trip through the geothermal frontier.

  12. Cyclotron Road at Berkeley Lab | Department of Energy

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

    Cyclotron Road at Berkeley Lab Cyclotron Road at Berkeley Lab Addthis The Department of Energy is testing a new model for clean energy research and development (R&D) through a program called Cyclotron Road. The goal is to support scientific R&D that is still too risky for private-sector investment, and too applied for academia

  13. Suggested Talking Points for Hydrogen Road Tour | Department of Energy

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

    Suggested Talking Points for Hydrogen Road Tour Suggested Talking Points for Hydrogen Road Tour Suggested Talking Points for Hydrogen Road Tour (113.63 KB) More Documents & Publications Clean, Efficient, and Reliable Power for the 21st Century: Fact Sheet State of the States: Fuel Cells in America 2010 State of the States: Fuel Cells in America 2012

  14. Accessing Online COR Training

    Office of Energy Efficiency and Renewable Energy (EERE)

    Contracting Officer’s Representative (COR) training is now be available in an online format. "Accessing Online COR Training" provides a step-by-step guide to access the online COR course. 

  15. 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.

  16. Laser-triggered vacuum switch

    DOE Patents [OSTI]

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

    1990-12-18

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

  17. Laser-triggered vacuum switch

    DOE Patents [OSTI]

    Brannon, Paul J.; 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.

  18. 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)

  19. 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.

  20. 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.

  1. Multiprocessor switch with selective pairing

    SciTech Connect (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

  2. 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.

  3. Microwave-triggered laser switch

    DOE Patents [OSTI]

    Piltch, M.S.

    1982-05-19

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

  4. A magnetically switched kicker for proton extraction

    SciTech Connect (OSTI)

    Dinkel, J.; Biggs, J.

    1989-03-01

    The application of magnetic current amplification and switching techniques to the generation of precise high current pulses for switching magnets is described. The square loop characteristic of Metglas tape wound cores at high excitation levels provides excellent switching characteristics for microsecond pulses. The rugged and passive nature of this type pulser makes it possible to locate the final stages of amplification at the load for maximum efficiency. 12 refs., 8 figs.

  5. Access to the ALS

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

    Gate Access Access to the ALS Print User Access The ALS experiment floor (Building 6) is a Controlled Access Area for radiation protection. All ALS users are required to register with the ALS User Services Office and take safety training (see Complete Safety Training ) before they are issued a Berkeley Lab ID badge and granted access to the facility. Note: Users arriving at the ALS outside registration business hours (Monday-Friday 8:00 a.m.-4:00 p.m.) must notify the User Office in advance and

  6. 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.

  7. Mechanical control of electroresistive switching (Journal Article...

    Office of Scientific and Technical Information (OSTI)

    SciTech Connect Search Results Journal Article: Mechanical control of electroresistive switching Citation Details In-Document Search Title: Mechanical control of electroresistive ...

  8. 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.

  9. 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.

  10. The Digital Road to Scientific Knowledge Diffusion

    Office of Scientific and Technical Information (OSTI)

    Digital Road to Scientific Knowledge Diffusion A Faster, Better Way to Scientific Progress? By David E. Wojick, Walter L. Warnick, Bonnie C. Carroll, and June Crowe Introduction With the United States federal government spending over $130 billion annually for research and development, ways to increase the productivity of that research can have a significant return on investment. It is well known that all scientific advancement is based on work that has come before. Isaac Newton expressed this

  11. Spin-transfer-torque efficiency enhanced by edge-damage of perpendicular magnetic random access memories

    SciTech Connect (OSTI)

    Song, Kyungmi; Lee, Kyung-Jin

    2015-08-07

    We numerically investigate the effect of magnetic and electrical damages at the edge of a perpendicular magnetic random access memory (MRAM) cell on the spin-transfer-torque (STT) efficiency that is defined by the ratio of thermal stability factor to switching current. We find that the switching mode of an edge-damaged cell is different from that of an undamaged cell, which results in a sizable reduction in the switching current. Together with a marginal reduction of the thermal stability factor of an edge-damaged cell, this feature makes the STT efficiency large. Our results suggest that a precise edge control is viable for the optimization of STT-MRAM.

  12. Filament formation and erasure in molybdenum oxide during resistive switching cycles

    SciTech Connect (OSTI)

    Kudo, Masaki; Arita, Masashi Ohno, Yuuki; Takahashi, Yasuo

    2014-10-27

    In-situ filament observations were carried out on the Cu/MoO{sub x}/TiN resistive random access memory (ReRAM) by using transmission electron microscopy. Multiple positive and negative I-V cycles were investigated. Clear set-reset bipolar switch corresponding to the characteristics of conventional ReRAM devices was recognized. Filament grew from TiN to Cu in the set cycle and shrank from TiN to Cu in the reset cycle. However, there was no clear contrast change in the image at the switching moment, and thus, switching is thought to occur in a local region of the filament. When the current was large at reset, the filament shrank much, and its position tended to change.

  13. 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.

  14. 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.

  15. 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.

  16. 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.

  17. 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.

  18. 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.

  19. 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.

  20. Code division multiple access signaling for modulated reflector technology

    DOE Patents [OSTI]

    Briles, Scott D.

    2012-05-01

    A method and apparatus for utilizing code division multiple access in modulated reflectance transmissions comprises the steps of generating a phase-modulated reflectance data bit stream; modifying the modulated reflectance data bit stream; providing the modified modulated reflectance data bit stream to a switch that connects an antenna to an infinite impedance in the event a "+1" is to be sent, or connects the antenna to ground in the event a "0" or a "-1" is to be sent.

  1. Access to Capital Roundtable

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

    ... State of Washington Chahalis and Great Wolf Lodge Streamlined environmental approval and process Price advantages due to tax preference Access to NMTC, USDA, DOE, ...

  2. Energy Data Access

    Broader source: Energy.gov [DOE]

    Access to energy data presents a significant opportunity for many organizations interested in energy management, benchmarking, disclosure, and energy efficiency services.

  3. Access to Capital

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

    IPR 2008 Capital Investment Review CIR 2012 Quarterly Business Review Focus 2028 2011 Strategic Capital Discussions Access to Capital Debt Optimization Asset Management Cost...

  4. 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 ...

  5. 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 ...

  6. A spatial DB model to simulate the road network efficiency in hydrogeological emergency

    SciTech Connect (OSTI)

    Michele, Mangiameli Giuseppe, Mussumeci

    2015-12-31

    We deal with the theme of the simulation of risk analysis using a technological approach based on the integration of exclusively free and open source tools: PostgreSQL as Database Management System (DBMS) and Quantum GIS-GRASS as Geographic Information System (GIS) platform. The case study is represented by a seismic land in Sicily characterized by steep slopes and frequent instability phenomena. This area includes a city of about 30.000 inhabitants (Enna) that lies on the top of a mountain at about 990 m a.s.l.. The access to the city is assured by few and very winding roads that are also highly vulnerable to seismic and hydrogeological hazards. When exceptional rainfall events occur, the loss of efficiency of these roads should compromise timeliness and effectiveness of rescue operations. The data of the sample area have been structured into the adopted DBMS, and the connection to the GIS functionalities allows simulating the exceptional events. We analyzed the hazard, vulnerability and exposure related to these events and calculated the final risk defining three classes for each scenario: low (L), medium (M) and high (H). This study can be a valuable tool to prioritize risk levels and set priorities for intervention to the main road networks.

  7. WIPP Performance Assessment: Current Status and the Road Ahead | Department

    Office of Environmental Management (EM)

    of Energy Performance Assessment: Current Status and the Road Ahead WIPP Performance Assessment: Current Status and the Road Ahead Presentation from the 2015 Annual Performance and Risk Assessment (P&RA) Community of Practice (CoP) Technical Exchange Meeting held in Richland, Washington on December 15-16, 2015. WIPP Performance Assessment: Current Status and the Road Ahead (3.02 MB) More Documents & Publications Performance Assessment Updates for Waste Isolation Pilot Plant

  8. Cyclotron Road: Creating a Home for Top Clean Energy Technology

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

    Entrepreneurs within our National Laboratories | Department of Energy Cyclotron Road: Creating a Home for Top Clean Energy Technology Entrepreneurs within our National Laboratories Cyclotron Road: Creating a Home for Top Clean Energy Technology Entrepreneurs within our National Laboratories September 2, 2015 - 10:53am Addthis Cyclotron Road: Creating a Home for Top Clean Energy Technology Entrepreneurs within our National Laboratories David Danielson Former Assistant Secretary for the Office

  9. Predicting and Utilizing the Vehicle's Past and Futuer Road Grade |

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

    Department of Energy and Utilizing the Vehicle's Past and Futuer Road Grade Predicting and Utilizing the Vehicle's Past and Futuer Road Grade Predicted road grade may be used to estimate the power required to propel the vehicle through the upcoming terrain so that the engine controller can deliver the necessary power. p-09_nuszkowski.pdf (208.31 KB) More Documents & Publications Thermal Simulation of Advanced Powertrain Systems Impact of Vehicle Efficiency Improvements on Powertrain

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

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

    Combustion Control for High Power Diesel Mode Switching Modeling Combustion Control for High Power Diesel Mode Switching Poster presentation given at the 16th Directions in ...

  11. Fundamental New Insight Into Material for Optical-Switching ...

    Office of Science (SC) Website

    Fundamental New Insight Into Material for Optical-Switching Basic Energy Sciences (BES) ... Fundamental New Insight Into Material for Optical-Switching A triple point, where three ...

  12. IRF-World Road Statistics | Open Energy Information

    Open Energy Info (EERE)

    AgencyCompany Organization: International Road Statistics Focus Area: Transportation, Economic Development Resource Type: Dataset Website: www.irfnet.orgstatistics.php Cost:...

  13. Efficiency Improvement in an Over the Road Diesel Powered Engine...

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

    Thermoelectric Systems Implemented in a Hybrid Configuration Efficiency Improvement in an Over the Road Diesel Powered Engine System by the Application of Advanced Thermoelectric ...

  14. Active DPF for Off-Road Particulate Matter (PM) Control

    Broader source: Energy.gov [DOE]

    This presentation details how a possibly catalyzed active diesel particulate filter can be used to control off-road particulate matter.

  15. Electricity for road transport, flexible power systems and wind...

    Open Energy Info (EERE)

    systems and wind power (Smart Grid Project) Jump to: navigation, search Project Name Electricity for road transport, flexible power systems and wind power Country Denmark...

  16. Dillard Road Solar Power Facility | Open Energy Information

    Open Energy Info (EERE)

    Facility Facility Dillard Road Solar Power Facility Sector Solar Facility Type Photovoltaics Facility Status In Service Developer Recurrent Energy Energy Purchaser Sacramento...

  17. LANL closes road, trails for safety reasons; flooding and erosion...

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

    closed for safety reasons LANL closes road, trails for safety reasons; flooding and erosion control work under way Closure is in response to the increased fire risk and...

  18. Ed Westcotts photography goes on the road

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

    photographer Ed Westcott, is going on the road. The Oak Ridge Secret City Photographic History Exhibit consists of selected images from many of Westcott's works that have...

  19. Road Transportable Analytical Laboratory (RTAL) system

    SciTech Connect (OSTI)

    Finger, S.M.

    1995-10-01

    The goal of the Road Transportable Analytical Laboratory (RTAL) Project is the development and demonstration of a system to meet the unique needs of the DOE for rapid, accurate analysis of a wide variety of hazardous and radioactive contaminants in soil, groundwater, and surface waters. This laboratory system has been designed to provide the field and laboratory analytical equipment necessary to detect and quantify radionuclides, organics, heavy metals and other inorganic compounds. The laboratory system consists of a set of individual laboratory modules deployable independently or as an interconnected group to meet each DOE site`s specific needs.

  20. A queuing model for road traffic simulation

    SciTech Connect (OSTI)

    Guerrouahane, N.; Aissani, D.; Bouallouche-Medjkoune, L.; Farhi, N.

    2015-03-10

    We present in this article a stochastic queuing model for the raod traffic. The model is based on the M/G/c/c state dependent queuing model, and is inspired from the deterministic Godunov scheme for the road traffic simulation. We first propose a variant of M/G/c/c state dependent model that works with density-flow fundamental diagrams rather than density-speed relationships. We then extend this model in order to consider upstream traffic demand as well as downstream traffic supply. Finally, we show how to model a whole raod by concatenating raod sections as in the deterministic Godunov scheme.

  1. 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.

  2. Package-interface thermal switch

    SciTech Connect (OSTI)

    Hyman, N.L.

    1995-05-24

    The package-interface thermal switch (PITS) is an active temperature control device for modulating the flow of thermal energy from satellite equipment, such as electronic modules or batteries, to the satellite mounting deck which serves as a heat sink. PITS comprises a mounting bolt made of a shaped memory alloy (SMA) actuating bolt and a non-metallic rod with a helical spring surrounding it forming a mounting bolt for a satellite equipment package. At least four mounting bolts are used for installing the equipment package and are preloaded to a predetermined stress representing the desired thermal conductance between the heat sink and the package. The SMA actuating bolt is in thermal contact with the component or package and expands or contracts as the result of changing package temperature and the helical return spring forces against the SMA actuating bolt portion of the PITS, increasing (hot-on`1 condition) or decreasing (cold-off condition) the pressure of the package against the mounting deck. As the PITS changes its total length, the thermal conductance between the two objects is increased or decreased. Thus thermal conductance changes as a direct function of package temperature, resulting in active temperature control. The simple design of the PITS reduces the cost and weight of the thermal control subsystem in satellites and its high reliability eliminates the requirement for thermal design verification testing.

  3. Delayed switching applied to memristor neural networks

    SciTech Connect (OSTI)

    Wang, Frank Z.; Yang Xiao; Lim Guan; Helian Na; Wu Sining; Guo Yike; Rashid, Md Mamunur

    2012-04-01

    Magnetic flux and electric charge are linked in a memristor. We reported recently that a memristor has a peculiar effect in which the switching takes place with a time delay because a memristor possesses a certain inertia. This effect was named the ''delayed switching effect.'' In this work, we elaborate on the importance of delayed switching in a brain-like computer using memristor neural networks. The effect is used to control the switching of a memristor synapse between two neurons that fire together (the Hebbian rule). A theoretical formula is found, and the design is verified by a simulation. We have also built an experimental setup consisting of electronic memristive synapses and electronic neurons.

  4. 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.

  5. 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.

  6. Accessibility - Hanford Site

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

    of Energy is committed to providing access to our Web pages for individuals with disabilities. To meet this committment, this site is built to comply with the requirements of...

  7. Remote Access Options

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

    ... Applications Features Blackberry (if applicable) Outlook Web Access (OWA) Citrix Workplace WebVPN AnyConnect VPN All methods other than Blackberry require a RSA Token Email 1 ...

  8. VEHICLE ACCESS PORTALS

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

    ACCESS PORTALS Changes Effective January 11, 2010 Traffic Lane 1: No stop required. Drivers must slow down to 15 MPH while nearing and driving through the lane Traffic Lane 2:...

  9. ETA-HTP05 - Hybrid Electric Vehicle Rough Road Course Test

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

    "Hybrid Electric Vehicle Rough Road Course Test" Prepared by Electric Transportation ... Appendices Appendix A - Electric Vehicle Rough Road Test Data Sheet 11 Appendix B - ...

  10. Savannah River Site 1991 Road Erosion Inventory.

    SciTech Connect (OSTI)

    Jones, Cliff.

    2007-06-22

    Final Report. USDA Forest Service, Savannah River, Aiken, SC. 28 pp. Abstract - This paper explains the rationale and results of a 1991 road erosion inventory conducted by members of the USDA Forest Service – Savannah River (FS-SR) and USDA Natural Resources Conservation Service (NRCS). The inventory provided information for the Department of Energy - Savannah River (DOE-SR) to justify the need for developing an erosion and sediment control program with appropriate funding, personnel, and equipment. Federally managed since the early 1950’s, the SRS is located on 198,344 acres (80,301 hectares) in the South Carolina counties of Aiken, Barnwell, and Allendale. Located along the eastern border of the Savannah River, the SRS is located within the Upper and Lower Coastal Plains of South Carolina.

  11. Caf Systems Express Access Form

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

    Cognos Report Access checkboxes (as applicable). Access to Monthly Financials & Supply Chain folders is included with any selections below. BudgetCOA - Capital project,...

  12. Effect of the top electrode materials on the resistive switching characteristics of TiO{sub 2} thin film

    SciTech Connect (OSTI)

    Oh, Sang Chul; Jung, Ho Yong; Lee, Heon

    2011-06-15

    Various metals, such as Pt, stainless steel (SUS), Al, Ni, and Ti, were used as a top electrode (TE) to evaluate the dependency of the resistive switching characteristics on the TE of the metal/TiO{sub 2}/Pt structure. The variation of the chemical composition of TiO{sub 2} in the metal/TiO{sub 2}/Pt structure before and after switching was examined to identify the factors affecting the resistive switching characteristics of the samples with various TE materials. In the case of TE/TiO{sub 2}/Pt structures showing unstable resistive switching behavior, e.g., those with the Al, Ni, and Ti TEs, secondary ion mass spectrometry revealed an increase in the oxygen concentration at the interface area between the TE metal and TiO{sub 2}. This suggests that the oxidation reaction at the interface between the TE metal and TiO{sub 2} might cause the TE/TiO{sub 2}/Pt structure to exhibit unstable resistive switching characteristics. According to these results, the oxidation reaction at the interface between the metal TE and TiO{sub 2} thin film is a primary factor affecting the resistive switching characteristics of TiO{sub 2}-based Resistive Random Access Memory devices.

  13. The Road to Hiroshima and Beyond | Department of Energy

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

    The Road to Hiroshima and Beyond The Road to Hiroshima and Beyond October 20, 2009 The RERF program is not a typical research program since it aims at fostering the health and welfare of the atomic-bomb survivors. A unique nurse's perspective on the RERF and the health of the A-bomb survivors is presented by Dr. Amy Knowles. The Road to Hiroshima and Beyond (127.75 KB) More Documents & Publications Report of the Senior Review Panel on the Review of the Radiation Effects Research Foundation

  14. Which Road to Travel? | Y-12 National Security Complex

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

    Which Road to Travel? Which Road to Travel? Posted: July 16, 2013 - 6:06pm There's no question which road (crosswalk) to travel when you park in the North Portal parking lot. Thanks to the recent restriping of the parking lot, the crosswalk and parking spaces are clearly marked. Earlier this year, the Employee-Driven Safety Campaign was created as a way to easily submit safety issues as we continue pursuing Safety for Life and our Voluntary Protection Program focus. Y-12 is a large site, so it

  15. An overview of the video switch management system for AVLIS experiments

    SciTech Connect (OSTI)

    Palasek, R.L.; Killian, M.J.; Zimmerman, M.D.

    1991-09-01

    The use of video images in the AVLIS systems is pervasive. Video images are taken, and displayed for functions such as pointing and centering, surveying (finding beam location), examining overlap of beams, and diagnostic analyses. The process laser light is generated, converted, tuned, amplified, split, and recombined in many stages; each stage relies on video images for operation, control and feedback. Without the ability to bring these many images together into one control room, operation and diagnostics of the AVLIS processes would be practically impossible. Of all auxiliary systems in the AVLIS process, video service is probably second only to the safety interlock system in importance. The video switch management computer system was needed to implement a virtual switch, where no commercial cross point switch was large enough or of practical cost. The system routes images to remote operator stations, integrates control of video image switching into the control of process devices, and reduces the cost and rack space needs of hardware controllers in work areas where there are numerous monitors. Access to remote images allow both operators and experimenters in one area to see images from other areas of the light chain. In some experiments, the process is physically distributed across the laboratory; problem resolution is facilitated if personnel at distant stations can see and talk about the same image simultaneously.

  16. Public Access Policy and Communications | DOE PAGES

    Office of Scientific and Technical Information (OSTI)

    Public Access Policy and Communications Public Access Policy and Communications 72414 Department of Energy Public Access Plan DOE Public Access Plan 22213 White House Office of ...

  17. Public Access Policy and Communications | DOE PAGES

    Office of Scientific and Technical Information (OSTI)

    DOE PAGES Public Access Policy and Communications Public Access Policy and Communications 72414 Department of Energy Public Access Plan DOE Public Access Plan 22213 White House ...

  18. REMOTE ACCESS SERVICES | Department of Energy

    Office of Environmental Management (EM)

    Energy IT Services (EITS) Remote Access Services: Outlook Web Access RSA Token Login RSA ... Energy Information Administration (EIA) Remote Access Services Outlook Web Access EIA VPN ...

  19. Compact high voltage solid state switch

    DOE Patents [OSTI]

    Glidden, Steven C.

    2003-09-23

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

  20. Magnetic switch for reactor control rod

    DOE Patents [OSTI]

    Germer, John H.

    1986-01-01

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

  1. 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.

  2. Nanoeletromechanical switch and logic circuits formed therefrom

    SciTech Connect (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.

  3. 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.

  4. ACCESS Project: Final Report

    SciTech Connect (OSTI)

    Weller, Heiko

    2015-04-01

    The ACCESS project addressed the development, testing, and demonstration of the proposed advanced technologies and the associated emission and fuel economy improvement at an engine dynamometer and on a full-scale vehicle. Improve fuel economy by 25% with minimum performance penalties Achieve SULEV level emissions with gasoline Demonstrate multi-mode combustion engine management system

  5. Special Access Programs

    Broader source: Directives, Delegations, and Requirements [Office of Management (MA)]

    2011-03-29

    This Order is for OFFICIAL USE ONLY and will not be distributed on the Directives' Portal. For distribution, please contact the Executive Secretary of the Special Access Program Oversight Committee at (202) 586-3345. Does not cancel/supersede other directives.

  6. 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.

  7. 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.

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

    1986-05-02

    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).