National Library of Energy BETA

Sample records for dimmer switches occupancy

  1. Picture of the Week: Molecular "dimmer" switches for biomedicine...

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

    and designed to control transmission of information (greenblue) to molecular machines (greyorange) inside living cells. READ MORE: Medical and biofuel advances possible with new...

  2. DOE Publishes New Report on Dimming LEDs with Phase-Cut Dimmers |

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

    Department of Energy New Report on Dimming LEDs with Phase-Cut Dimmers DOE Publishes New Report on Dimming LEDs with Phase-Cut Dimmers November 8, 2013 - 12:00am Addthis DOE has published a new report, Dimming LEDs with Phase-Cut Dimmers: The Specifier's Process for Maximizing Success. The report was created in response to issues raised about dimming by energy efficiency organizations and specifiers, and is based on experience from CALiPER testing and GATEWAY demonstrations. While progress

  3. DOE Publishes Revised Report on Dimming LEDs with Phase-Cut Dimmers

    Broader source: Energy.gov [DOE]

    DOE has revised its October 2013 report, Dimming LEDs with Phase-Cut Dimmers: The Specifier's Process for Maximizing Success, to include updated information about the installation of LED lighting...

  4. Dimming LEDs with Phase-Cut Dimmers: The Specifier's Process for Maximizing Success

    SciTech Connect (OSTI)

    Miller, Naomi J.; Poplawski, Michael E.

    2013-10-01

    This report reviews how phase-cut dimmers work, how LEDs differ from the incandescent lamps that the dimmers were historically designed to control, and how these differences can lead to complications when trying to dim LEDs. Compatibility between a specific LED source and a specific phase-cut dimmer is often unknown and difficult to assess, and ensuring compatibility adds complexity to the design, specification, bidding, and construction observation phases for new buildings and major remodel projects. To maximize project success, this report provides both general guidance and step-by-step procedures for designing phase-controlled LED dimming on both new and existing projects, as well as real-world examples of how to use those procedures.

  5. Dimming LEDs with Phase-Cut Dimmers. The Specifier's Process for Maximizing Success

    SciTech Connect (OSTI)

    Miller, N. J.; Poplawski, M. E.

    2013-10-01

    DOE GATEWAY program report reviewing how phase-cut dimmers work, how LEDs differ from the incandescent lamps these dimmers were originally designed to control, and how those differences can lead to complications when attempting to dim LEDs. Providing both general guidance and step-by-step procedures for designing phase-controlled LED dimming on both new and existing projects—as well as real-world examples of how to use those procedures—the report aims to reduce the chance of experiencing compatibility-related problems and, if possible, ensure good dimming performance.

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

  7. 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.

  8. 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.

  9. Optical Switch

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

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

  10. 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.

  11. 1

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

    Molecular "dimmer" switches for biomedicine and bioenergy August 30, 2015 Molecular "dimmer" switches for biomedicine and bioenergy Scientists at Los Alamos National Laboratory...

  12. Acceleration switch

    DOE Patents [OSTI]

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

    1982-08-17

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

  13. Acceleration switch

    DOE Patents [OSTI]

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

    1981-01-01

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

  14. 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.

  15. 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...

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

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

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

  17. Headquarters Occupational Health Clinics

    Broader source: Energy.gov [DOE]

    The Department of Energy recognizes the importance of maintaining a healthy and fit Federal workforce. To that end, our occupational health care professionals at the Headquarters Occupational...

  18. PIA - Richland Occupational Medicine Contract | Department of...

    Energy Savers [EERE]

    PIA - Richland Occupational Medicine Contract PIA - Richland Occupational Medicine Contract PIA - Richland Occupational Medicine Contract PDF icon PIA - Richland Occupational...

  19. Radiation hard vacuum switch

    DOE Patents [OSTI]

    Boettcher, Gordon E. (Albuquerque, NM)

    1990-01-01

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

  20. 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.

  1. 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.

  2. PRIVACY IMPACT ASSESSMENT: OCCUPATIONAL MEDICINE- INL OCCUPATIONAL

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

    OCCUPATIONAL MEDICINE- INL OCCUPATIONAL MEDICAL SUVEILLANCE SYSTEM (OMSS) PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetextlneword/206/o2061.pdf Please complete electronically: no hand-written submissions will be

  3. PRIVACY IMPACT ASSESSMENT: Occupational Safety Health Occupational

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

    Occupational Safety & Health - Occupational Injury & Illness System PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance is provided in the template. See DOE Order 206.1 J Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetextlneword/206/o2061.pdf Please complete electronically: no hand-written submissions will be

  4. Triggered plasma opening switch

    DOE Patents [OSTI]

    Mendel, Clifford W. (Albuquerque, NM)

    1988-01-01

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

  5. Occupant Safety Assessment

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

    Occupant Safety Assessment and Crash Biomechanics Background During crashes, vehicle occupants may experience a wide variety of injuries that often correspond to their location within the vehicle, their age and gender, and type of vehicle and crash. Current finite-element models that are used to assess the level of injuries employ only 60,000 to 100,000 elements and require 12 hours of computation to assess vehicle structural components. Occupant models mostly represent the "50% adult

  6. The Usefulness of Bi-Level Switching; Original Technical Note: November 1998. Revised August, 1999

    SciTech Connect (OSTI)

    Building Technologies Department

    1998-11-01

    California's Title 24 Energy Efficiency Building Standard requires multiple lighting level control in all individual offices. Usually, this requirement is fulfilled using bi-level switching. With bi-level switching, each office occupant is provided with two wall switches near the doorway to control their lights. In a typical installation, one switch would control 1/3 of the fluorescent lamps in the ceiling lighting system, while the other switch would control the remaining 2/3 of the lamps. This allows four possible light levels: OFF, 1/3, 2/3 and FULL lighting. Because it has been required by building code since 1983, bi-level switching is common in California office buildings. However, there is no published evidence showing that occupants sometimes use just one switch rather than just switching on both switches when entering the room. Consequently, some have questioned whether bi-level switching is a necessary or desirable requirement for typical office buildings. In fact, the draft national standard, ASHRAE Standard 90.1-1989K apparently does not require bi-level switching at all.

  7. Occupational Medicine - Assistant PIA, Idaho National Laboratory...

    Energy Savers [EERE]

    Occupational Medicine - Assistant PIA, Idaho National Laboratory Occupational Medicine - Assistant PIA, Idaho National Laboratory Occupational Medicine - Assistant PIA, Idaho...

  8. 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.

  9. Solid state switch

    DOE Patents [OSTI]

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

    1994-01-01

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

  10. 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.

  11. 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.

  12. Alarm toe switch

    DOE Patents [OSTI]

    Ganyard, Floyd P. (Albuquerque, NM)

    1982-01-01

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

  13. 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.

  14. 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.

  15. Reflective HTS switch

    DOE Patents [OSTI]

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

    1994-01-01

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

  16. 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.

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

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

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

  18. 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.

  19. 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.

  20. 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.

  1. 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.

  2. 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.

  3. 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.

  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. 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.

  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. Council's Occupational Excellence Achievement

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

    . Personnel Safety - received the National Safety Council's Occupational Excellence Achievement Award for the tenth straight year, maintained DOE Voluntary Protection Program Star status and reduced recordable injuries by 13 percent. 2. Nuclear Safety Culture - established the Nuclear Safety Culture campaign to foster an open, trusting environment and encourage technical inquisitiveness. 3. Engineering and Nuclear Safety Programs - improved criticality safety in Building 9212 through engineered

  8. 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.

  9. 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.

  10. Energy Employees' Occupational Illness Compensation Program Act...

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

    Tracking Database, INL Energy Employees' Occupational Illness Compensation Program Energy Employees' Occupational Illness Compensation Program Act (EEOICPA) Tracking ...

  11. Energy Employees Occupational Illness Compensation Program Act...

    Office of Science (SC) Website

    Energy Employees Occupational Illness Compensation Program Act (EEOICPA) Integrated ... Act Compilation of Systems of Records Energy Employees Occupational Illness ...

  12. Occupational Safety Performance

    Office of Environmental Management (EM)

    Q1 2012 rates should be considered preliminary as of the date of this report (July 2012). All data has not yet been submitted to CAIRS. 1 Occupational Safety Performance Comparable Industry, Average TRC Rate Comparable Industry, Average DART Case Rate Comparable Industries 2010 EM = Heavy and Civil Engineering Construction (NAICS 237) Office of Environmental Management (EM) * TRC and DART Case Rates declined while work hours increased from 2009 through 2011. * Both TRC and DART Case Rates are

  13. 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.

  14. 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.

  15. Plasma opening switch

    DOE Patents [OSTI]

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

    2001-01-01

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

  16. Optical fiber switch

    DOE Patents [OSTI]

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

    2002-01-01

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

  17. 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.

  18. switched-bed regenerators

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

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

  19. 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.

  20. Occupational Medicine Variance Request

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

    and Justification of Variance Sought: B&W Y-12 requests a permanent variance from certain sections of 10 CFR Part 851's occupational medicine requirements for B&W Y-12 subcontractors. The specific requirements within Appendix A.8 which B&W Y-12 seeks relief from flow down to subcontractors are 10 CFR Part 851 Appendix A.8(a) and A.8(d) through A.8(k) inclusive. If the variance is granted, B&W Y-12 will continue to place the highest priority on establishing and maintaining a safe

  1. Occupational Medicine | The Ames Laboratory

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

    state regulations. The Occupational Medicine office enhances the efficiency of existing safety and health programs and assists in the reduction of workplace injuries and illnesses....

  2. Occupational Injury & Illness System (01&15) PIA, Idaho National...

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

    Energy Employees' Occupational Illness Compensation Program Act (EEOICPA) Tracking Database, INL Energy Employees' Occupational Illness Compensation Program Occupational Medicine - ...

  3. Occupational Medicine - Assistant PIA, Idaho National Laboratory |

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

    Department of Energy Medicine - Assistant PIA, Idaho National Laboratory Occupational Medicine - Assistant PIA, Idaho National Laboratory Occupational Medicine - Assistant PIA, Idaho National Laboratory PDF icon Occupational Medicine - Assistant PIA, Idaho National Laboratory More Documents & Publications Occupational Medical Surveillance System (OMSS) PIA, Idaho National Laboratory Occupational Injury & Illness System (01&15) PIA, Idaho National Laboratory PIA - INL Education

  4. DOE HQ Occupational Safety and Health Program | Department of...

    Energy Savers [EERE]

    DOE HQ Occupational Safety and Health Program DOE HQ Occupational Safety and Health Program HQ Occupational Safety and Health Program Procedures PDF icon DOE HQ Occupational Safety...

  5. 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.

  6. Occupational Medical Program

    Energy Science and Technology Software Center (OSTI)

    1993-12-08

    The Occupational Medical Program (OMP) oversees all Idaho National Engineering Laboratory (INEL) health care, and provides services to all managing and operating (M&O) contractors at the INEL and for the Department of Energy Idaho Office (DOE-ID). The evolution of the automated OMP at the INEL is guided by the U.S. Department of Energy (DOE) directives and regulations. The OMP is developing a multiyear plan for the computerization of patient and demographics, epidemiology, medical records, andmore » surveillance. This plan will require the following six development phases: Employee Demographic Phase, Patient Surveillance Certification and Restrictions Phase, Electronic Notification Phase, Epidemiology-Industrial Hygiene/Radiation Exposure/OMP Integration Phase, Medical Scheduling Phase, and Medical Records Phase.« less

  7. DOE 2011 occupational radiation exposure

    SciTech Connect (OSTI)

    none,

    2012-12-01

    The U.S. Department of Energy (DOE) Office of Analysis within the Office of Health, Safety and Security (HSS) publishes the annual DOE Occupational Radiation Exposure Report to provide an overview of the status of radiation protection practices at DOE (including the National Nuclear Security Administration [NNSA]). The DOE 2011 Occupational Radiation Exposure Report provides an evaluation of DOE-wide performance regarding compliance with Title 10, Code of Federal Regulations (C.F.R.), Part 835, Occupational Radiation Protection dose limits and as low as reasonably achievable (ALARA) process requirements. In addition, the report provides data to DOE organizations responsible for developing policies for protection of individuals from the adverse health effects of radiation. The report provides a summary and an analysis of occupational radiation exposure information from the monitoring of individuals involved in DOE activities. The occupational radiation exposure information is analyzed in terms of aggregate data, dose to individuals, and dose by site over the past five years.

  8. DOE 2012 occupational radiation exposure

    SciTech Connect (OSTI)

    none,

    2013-10-01

    The U.S. Department of Energy (DOE) Office of Analysis within the Office of Health, Safety and Security (HSS) publishes the annual DOE Occupational Radiation Exposure Report to provide an overview of the status of radiation protection practices at DOE (including the National Nuclear Security Administration [NNSA]). The DOE 2012 Occupational Radiation Exposure Report provides an evaluation of DOE-wide performance regarding compliance with Title 10, Code of Federal Regulations (C.F.R.), Part 835, Occupational Radiation Protection dose limits and as low as reasonably achievable (ALARA) process requirements. In addition, the report provides data to DOE organizations responsible for developing policies for protection of individuals from the adverse health effects of radiation. The report provides a summary and an analysis of occupational radiation exposure information from the monitoring of individuals involved in DOE activities. Over the past 5-year period, the occupational radiation exposure information is analyzed in terms of aggregate data, dose to individuals, and dose by site.

  9. Image-based occupancy sensor

    DOE Patents [OSTI]

    Polese, Luigi Gentile; Brackney, Larry

    2015-05-19

    An image-based occupancy sensor includes a motion detection module that receives and processes an image signal to generate a motion detection signal, a people detection module that receives the image signal and processes the image signal to generate a people detection signal, a face detection module that receives the image signal and processes the image signal to generate a face detection signal, and a sensor integration module that receives the motion detection signal from the motion detection module, receives the people detection signal from the people detection module, receives the face detection signal from the face detection module, and generates an occupancy signal using the motion detection signal, the people detection signal, and the face detection signal, with the occupancy signal indicating vacancy or occupancy, with an occupancy indication specifying that one or more people are detected within the monitored volume.

  10. 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...

  11. Data center coolant switch

    DOE Patents [OSTI]

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

    2015-10-06

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

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

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

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

  13. 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.

  14. ORO Energy Employees Occupational Illness Compensation Program...

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

    Occupational Illness Compensation Program(EEOICPA)PIA, Oak Ridge Operations Office ORO Energy Employees Occupational Illness Compensation Program(EEOICPA)PIA, Oak Ridge...

  15. Nevada Department of Transportation - Occupancy Permits | Open...

    Open Energy Info (EERE)

    Occupancy Permits Jump to: navigation, search OpenEI Reference LibraryAdd to library Web Site: Nevada Department of Transportation - Occupancy Permits Abstract This website gives...

  16. Safety & Occupational Health Specialist | Department of Energy

    Energy Savers [EERE]

    & Occupational Health Specialist Safety & Occupational Health Specialist Submitted by admin on Sat, 2015-10-17 00:14 Job Summary Organization Name Department Of Energy Agency...

  17. Battery switch for downhole tools

    DOE Patents [OSTI]

    Boling, Brian E. (Sugar Land, TX)

    2010-02-23

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

  18. ''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.

  19. 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.

  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. (353 Church Rd., Beech Island, SC 29842)

    1991-01-01

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

  2. Optimized scalable network switch

    DOE Patents [OSTI]

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

    2010-02-23

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

  3. High voltage coaxial switch

    DOE Patents [OSTI]

    Rink, John P. (Los Alamos, NM)

    1983-07-19

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

  4. DOE 2010 occupational radiation exposure

    SciTech Connect (OSTI)

    none,

    2011-11-01

    The U.S. Department of Energy (DOE) Office of Analysis within the Office of Health, Safety and Security (HSS) publishes the annual DOE Occupational Radiation Exposure Report to provide an overview of the status of radiation protection practices at DOE.* The DOE 2010 Occupational Radiation Exposure Report provides an evaluation of DOE-wide performance regarding compliance with DOE Part 835 dose limits and as low as reasonably achievable (ALARA) process requirements. In addition, the report provides data to DOE organizations responsible for developing policies for protection of individuals from the effects of radiation. The report provides a summary and an analysis of occupational radiation exposure information from the monitoring of individuals involved in DOE activities. The occupational radiation exposure information is analyzed in terms of aggregate data, dose to individuals, and dose by site over the past 5 years.

  5. Occupational Medicine Workshops and Webinars

    Broader source: Energy.gov [DOE]

    The DOE Annual Occupational Medicine Workshop & Webinar (OMWW) is a valuable training opportunity established by the Office of Health, Safety, and Security in support of hundreds of medical and allied health professionals located at over four dozen locations across the Department. Their vital work in the field of Occupational Medicine encompasses medical qualification examinations, injury and illness management, disability management, workers’ compensation, and much more.

  6. 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...

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

    Office of Scientific and Technical Information (OSTI)

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

  8. Dielectric liquid pulsed-power switch

    DOE Patents [OSTI]

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

    1990-01-01

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

  9. PIA - Richland Occupational Medicine Contract | Department of Energy

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

    Medicine Contract PIA - Richland Occupational Medicine Contract PIA - Richland Occupational Medicine Contract PDF icon PIA - Richland Occupational Medicine Contract More Documents & Publications Occupational Medical Surveillance System (OMSS) PIA, Idaho National Laboratory Occupational Medicine - Assistant PIA, Idaho National Laboratory

  10. 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.

  11. Occupational Safety Performance | Department of Energy

    Office of Environmental Management (EM)

    Occupational Safety Performance Occupational Safety Performance July 19, 2012 Occupational Safety Performance, DOE Quarterly TRC and DART Case Rates - Corporate Analysis of DOE Safety Performance PDF icon Occupational Safety Performance More Documents & Publications Acquisition and Project Management Continuous Improvement Presentation DOE ZERH Webinar: Efficient Hot Water Distribution I: What's at Stake Combustion Exhaust Gas Heat to Power Using Thermoelectric Engines

  12. Occupational Safety Performance | Department of Energy

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

    Occupational Safety Performance Occupational Safety Performance July 19, 2012 Occupational Safety Performance, DOE Quarterly TRC and DART Case Rates - Corporate Analysis of DOE Safety Performance PDF icon Occupational Safety Performance More Documents & Publications Acquisition and Project Management Continuous Improvement Presentation DOE ZERH Webinar: Efficient Hot Water Distribution I: What's at Stake Combustion Exhaust Gas Heat to Power Using Thermoelectric Engines

  13. Regenerative switching CMOS system

    DOE Patents [OSTI]

    Welch, J.D.

    1998-06-02

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

  14. Regenerative switching CMOS system

    DOE Patents [OSTI]

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

    1998-01-01

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

  15. Low impedance switch

    DOE Patents [OSTI]

    Hornig, Donald F.

    1976-01-01

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

  16. Occupational Radiation Exposure | Department of Energy

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

    Occupational Radiation Exposure Occupational Radiation Exposure Welcome The Occupational Radiation Exposure Information page on this web page is intended to provide the latest available information on radiation exposure to the workforce at DOE facilities. In addition, this page is intended to serve as a central location for the dissemination of information concerning the recording and reporting requirements for occupational radiation exposure at DOE facilities. Only "occupationally"

  17. Wide Bandgap Extrinsic Photoconductive Switches

    SciTech Connect (OSTI)

    Sullivan, J S

    2012-01-17

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

  18. High PRF high current switch

    DOE Patents [OSTI]

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

    1990-03-27

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

  19. 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.

  20. 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.

  1. Annual DOE Occupational Radiation Exposure | 1988 Report | Department...

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

    & Publications Annual DOE Occupational Radiation Exposure | 1989 Report Annual DOE Occupational Radiation Exposure | 1990 Report Annual DOE Occupational Radiation Exposure | 1991

  2. Operating Experience Level 3, DOE Occupational Radiation Exposures...

    Energy Savers [EERE]

    DOE Occupational Radiation Exposures for 2013 Operating Experience Level 3, DOE Occupational Radiation Exposures for 2013 January 29, 2015 OE-3 2015-01: DOE Occupational Radiation...

  3. 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.

  4. 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.

  5. Federal Buildings Supplemental Survey 1993

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

    74 48 73 35 31 46 Manual Dimmer Switches ... 93 73 90 47 37 62 Energy Management Practices (more than one may apply) Energy Management and Control System...

  6. Occupational Medical Surveillance System (OMSS) PIA, Idaho National...

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

    (OMSS) PIA, Idaho National Laboratory More Documents & Publications Occupational Medicine - Assistant PIA, Idaho National Laboratory Occupational Injury & Illness System ...

  7. Pantex Occupational Health System (OHS), National Nuclear Security...

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

    Pantex Occupational Health System (OHS), National Nuclear Security Administration Pantex Site Office Pantex Occupational Health System (OHS), National Nuclear Security ...

  8. Occupational Medical Surveillance System (OMSS) PIA, Idaho National...

    Energy Savers [EERE]

    (OMSS) PIA, Idaho National Laboratory More Documents & Publications Occupational Medicine - Assistant PIA, Idaho National Laboratory Occupational Injury & Illness System...

  9. Pantex Occupational Health System (OHS), National Nuclear Security...

    Energy Savers [EERE]

    Pantex Occupational Health System (OHS), National Nuclear Security Administration Pantex Site Office Pantex Occupational Health System (OHS), National Nuclear Security...

  10. 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.

  11. High voltage MOSFET switching circuit

    DOE Patents [OSTI]

    McEwan, Thomas E. (Livermore, CA)

    1994-01-01

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

  12. Anode initiated surface flashover switch

    DOE Patents [OSTI]

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

    2003-04-29

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

  13. Energy Employees' Occupational Illness Compensation Program Act (EEOICPA)

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

    Tracking Database, INL Energy Employees' Occupational Illness Compensation Program | Department of Energy Employees' Occupational Illness Compensation Program Act (EEOICPA) Tracking Database, INL Energy Employees' Occupational Illness Compensation Program Energy Employees' Occupational Illness Compensation Program Act (EEOICPA) Tracking Database, INL Energy Employees' Occupational Illness Compensation Program Energy Employees' Occupational Illness Compensation Program Act (EEOICPA) Tracking

  14. Spark gap switch with spiral gas flow

    DOE Patents [OSTI]

    Brucker, John P. (Espanola, NM)

    1989-01-01

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

  15. Dedication of Ethernet Switch | Department of Energy

    Office of Environmental Management (EM)

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

  16. Switch for serial or parallel communication networks

    DOE Patents [OSTI]

    Crosette, Dario B. (DeSoto, TX)

    1994-01-01

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

  17. Switch for serial or parallel communication networks

    DOE Patents [OSTI]

    Crosette, D.B.

    1994-07-19

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

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

    DOE Patents [OSTI]

    Cooper, James A. (Albuquerque, NM)

    1986-01-01

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

  19. Secure videoconferencing equipment switching system and method

    DOE Patents [OSTI]

    Hansen, Michael E. (Livermore, CA)

    2009-01-13

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

  20. 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.

  1. 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.

  2. Fast superconducting magnetic field switch

    DOE Patents [OSTI]

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

    1996-01-01

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

  3. Annual DOE Occupational Radiation Exposure Reports | Department of Energy

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

    November 17, 2015 Annual DOE Occupational Radiation Exposure | 2014 Report The DOE 2014 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2014. December 3, 2014 Annual DOE Occupational Radiation Exposure | 2013 Report The DOE 2013 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2013. September 24, 2013 Annual DOE Occupational

  4. Occupant Emergency Plans | Department of Energy

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

    Occupant Emergency Plans Occupant Emergency Plans On this page is the collection of Emergency Procedures documents for the Department of Energy, Headquarters buildings, in the Washington, DC, metropolitan area. Emergency Procedures Pamphlets Building Evacuation Routes Occupant Emergency Plans (OEP's) All of these documents are only available to computers attached to the DOE Network. They are for use only by DOE Headquarters employees. Any computer not on the DOE Network will get an error message

  5. Real-Time Occupancy Change Analyzer

    Energy Science and Technology Software Center (OSTI)

    2005-03-30

    The Real-Time Occupancy Change Analyzer (ROCA) produces an occupancy grid map of an environment around the robot, scans the environment to generate a current obstacle map relative to a current robot position, and converts the current obstacle map to a current occupancy grid map. Changes in the occupancy grid can be reported in real time to support a number of tracking capabilities. The benefit of ROCA is that rather than only providing a vector tomore » the detected change, it provides the actual x,y position of the change.« less

  6. Deputy Secretary Memo Regarding Energy Employees Occupational...

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

    Energy Employees Occupational Illness Compensation Program Act Interviews of Current and Former Workers The Department embraces its responsibility for and commitment to the health ...

  7. Annual DOE Occupational Radiation Exposure | 1974 Report

    Broader source: Energy.gov [DOE]

    The Seventh Annual Report of Radiation Exposures for AEC & AEC Contractor Employees analyzes occupational radiation exposures at the Atomic Energy Commission (AEC) and its contractor employees during 1974.

  8. RSF Workshop Session IV: Occupant Behavior

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

    laboratory of the U.S. Department of Energy, Office of Energy Efficiency and Renewable Energy, operated by the Alliance for Sustainable Energy, LLC. Design Decisions and Occupant...

  9. Image Processing Occupancy Sensor - Energy Innovation Portal

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

    Energy Efficiency Find More Like This Return to Search Image Processing Occupancy Sensor National Renewable Energy Laboratory Contact NREL About This Technology Publications:...

  10. Energy Employees Occupational Illness Compensation Program Act...

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

    Program Act (EEOICPA) Tracking System PIA, Office of Business Operations Energy Employees Occupational Illness Compensation Program Act (EEOICPA) Tracking System PIA, Office of ...

  11. Enenrgy Employees Occupational Illness Compensation Program Act...

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

    Program Act (EEOICPA) Tracking System, PIA, Savannah River Operations Office Enenrgy Employees Occupational Illness Compensation Program Act (EEOICPA) Tracking System, PIA, ...

  12. Annual DOE Occupational Radiation Exposure Reports | Department...

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

    employees during 1985. May 19, 2006 Annual DOE Occupational Radiation Exposure | 1984 Report The Seventeenth Annual Report of Radiation Exposures for DOE & DOE Contractor...

  13. The 1986 residential occupant survey

    SciTech Connect (OSTI)

    Ivey, D.L.; Alley, P.K.

    1987-04-01

    In 1986, Pacific Northwest Laboratory developed the Residential Occupant Survey-Spring '86, which was implemented. The overall purpose of the study was to collect demographic, attitudinal, and behavioral data related to the use and conservation of electricity in dwellings participating in the Bonneville Power Administration's End-Use Load and Conservation Assessment Program (ELCAP). Information was collected on the respondents' perceptions of the energy efficiency of their dwelling, temperature the dwelling was kept when people were at home and awake during the last heating season, which rooms, if any, were not heated during the last heating season, number of times the dwelling was unoccupied for at least one week, number of times pets were let out of the dwelling per day, attitudes toward energy use and conservation and several socio-demographic variables such as age, sex, and total household income. The results of the data analyses showed age to be an important factor for reported indoor temperature and perceived energy efficiency of the dwelling. The results also showed that almost 60% of the ELCAP occupants do not heat one or more rooms during the heating season, and almost 45% of the ELCAP dwellings were unoccupied for at least one week during the reporting period. In terms of the reported allocation of household income for household energy expenses, the results showed that the reported dollar amount spent for the expenses remained relatively constant over income levels.

  14. DOE HQ Occupational Safety and Health Program | Department of Energy

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

    Occupational Safety and Health Program DOE HQ Occupational Safety and Health Program HQ Occupational Safety and Health Program Procedures PDF icon DOE HQ Occupational Safety and Health Program More Documents & Publications HQ Confined Space Program, Policy 2010-001 Independent Oversight Review, Department of Energy Contractor - August 2000 FAQS Qualification Card - Occupational Safety

  15. Occupational Health Manager PIA, Carlsbad Field Office | Department of

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

    Energy Health Manager PIA, Carlsbad Field Office Occupational Health Manager PIA, Carlsbad Field Office Occupational Health Manager PIA, Carlsbad Field Office PDF icon Occupational Health Manager PIA, Carlsbad Field Office More Documents & Publications Occupational Medicine - Assistant PIA, Idaho National Laboratory Integrated Safety Management Workshop Registration, PIA, Idaho National Laboratory Occupational Injury & Illness System (01&15) PIA, Idaho National Laboratory

  16. Occupational Medical Surveillance System (OMSS) PIA, Idaho National

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

    Laboratory | Department of Energy Medical Surveillance System (OMSS) PIA, Idaho National Laboratory Occupational Medical Surveillance System (OMSS) PIA, Idaho National Laboratory Occupational Medical Surveillance System (OMSS) PIA, Idaho National Laboratory PDF icon Occupational Medical Surveillance System (OMSS) PIA, Idaho National Laboratory More Documents & Publications Occupational Medicine - Assistant PIA, Idaho National Laboratory Occupational Injury & Illness System

  17. 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.

  18. Microwave-triggered laser switch

    DOE Patents [OSTI]

    Piltch, Martin S. (Los Alamos, NM)

    1984-01-01

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

  19. Optical switching system and method

    DOE Patents [OSTI]

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

    1992-01-01

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

  20. Multiprocessor switch with selective pairing

    DOE Patents [OSTI]

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

    2014-03-11

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

  1. Microwave-triggered laser switch

    DOE Patents [OSTI]

    Piltch, M.S.

    1982-05-19

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

  2. 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.

  3. Laser-triggered vacuum switch

    DOE Patents [OSTI]

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

    1990-01-01

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

  4. Stable nonlinear Mach-Zehnder fiber switch

    DOE Patents [OSTI]

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

    1999-01-01

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

  5. Promising Technology: Wireless Lighting Occupancy Sensors

    Broader source: Energy.gov [DOE]

    Occupancy sensors and controls detect human presence, and modulate light settings accordingly. When there is no human presence detected, the system can dim or turn off lights. This technology ensures that lights are not used when there are no occupants present, which can lead to significant energy savings.

  6. Magnetic switch coupling to synchronize magnetic modulators

    DOE Patents [OSTI]

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

    1999-01-01

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

  7. 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.

  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. Occupancy change detection system and method

    DOE Patents [OSTI]

    Bruemmer, David J. [Idaho Falls, ID; Few, Douglas A. [Idaho Falls, ID

    2009-09-01

    A robot platform includes perceptors, locomotors, and a system controller. The system controller executes instructions for producing an occupancy grid map of an environment around the robot, scanning the environment to generate a current obstacle map relative to a current robot position, and converting the current obstacle map to a current occupancy grid map. The instructions also include processing each grid cell in the occupancy grid map. Within the processing of each grid cell, the instructions include comparing each grid cell in the occupancy grid map to a corresponding grid cell in the current occupancy grid map. For grid cells with a difference, the instructions include defining a change vector for each changed grid cell, wherein the change vector includes a direction from the robot to the changed grid cell and a range from the robot to the changed grid cell.

  10. Occupational Injury & Illness System (01&15) PIA, Idaho National...

    Energy Savers [EERE]

    Tracking Database, INL Energy Employees' Occupational Illness Compensation Program Occupational Medicine - Assistant PIA, Idaho National Laboratory VisitDosimBadgeTrckg-PIA.pdf...

  11. Pamphlet, A Basic Overview of Occupational Radiation Exposure...

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

    Pamphlet, A Basic Overview of Occupational Radiation Exposure Monitoring, Analysis & Reporting Pamphlet, A Basic Overview of Occupational Radiation Exposure Monitoring, Analysis & ...

  12. A Basic Overview of Occupational Radiation Exposure Monitoring...

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

    A Basic Overview of Occupational Radiation Exposure Monitoring, Analysis & Reporting A Basic Overview of Occupational Radiation Exposure Monitoring, Analysis & Reporting September ...

  13. A Basic Overview of the Occupational Radiation Exposure Monitoring...

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

    Occupational Radiation Exposure: Monitoring, Analysis & Reporting A Basic Overview of OCCUPATIONAL ... the radiation exposure to workers within the DOE Complex and to the public. ...

  14. Gas mixtures for spark gap closing switches

    DOE Patents [OSTI]

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

    1988-01-01

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

  15. 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.

  16. 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.

  17. 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.

  18. Transparent electrode for optical switch

    DOE Patents [OSTI]

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

    1986-01-01

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

  19. 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.

  20. 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.

  1. Annual DOE Occupational Radiation Exposure | 1982 Report

    Broader source: Energy.gov [DOE]

    The Fifteenth Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1982.

  2. Annual DOE Occupational Radiation Exposure | 1980 Report

    Broader source: Energy.gov [DOE]

    The Thirteenth Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1980.

  3. Annual DOE Occupational Radiation Exposure | 1981 Report

    Broader source: Energy.gov [DOE]

    The Fourteenth Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1981.

  4. Annual DOE Occupational Radiation Exposure | 1983 Report

    Broader source: Energy.gov [DOE]

    The Sixteenth Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1983.

  5. Annual DOE Occupational Radiation Exposure | 1979 Report

    Broader source: Energy.gov [DOE]

    The Twelfth Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1979.

  6. Annual DOE Occupational Radiation Exposure | 1978 Report

    Broader source: Energy.gov [DOE]

    The Eleventh Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1978.

  7. Annual DOE Occupational Radiation Exposure | 1977 Report

    Broader source: Energy.gov [DOE]

    The Tenth Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1977.

  8. Annual DOE Occupational Radiation Exposure | 1987 Report

    Broader source: Energy.gov [DOE]

    The Twentieth Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1987.

  9. Annual DOE Occupational Radiation Exposure | 1976 Report

    Broader source: Energy.gov [DOE]

    The Ninth Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1976.

  10. Annual DOE Occupational Radiation Exposure | 1986 Report

    Broader source: Energy.gov [DOE]

    The Nineteenth Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1986.

  11. Annual DOE Occupational Radiation Exposure | 1975 Report

    Broader source: Energy.gov [DOE]

    The Eighth Annual Report of Radiation Exposures for ERDA & ERDA Contractor Employees analyzes occupational radiation exposures at the Energy Research and Development Administration (ERDA) and its contractor employees during 1975.

  12. Annual DOE Occupational Radiation Exposure | 1984 Report

    Broader source: Energy.gov [DOE]

    The Seventeenth Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1984.

  13. Annual DOE Occupational Radiation Exposure | 1985 Report

    Broader source: Energy.gov [DOE]

    The Eighteenth Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1985.

  14. Occupational Radiation Protection Program (10 CFR 835)

    Broader source: Energy.gov [DOE]

    The occupational radiation protection program is governed by the Rule, specified as 10 CFR 835. The requirements given in 10 CFR 835 are matters of law, punishable by civil and criminal penalties.

  15. FAQS Reference Guide – Occupational Safety

    Broader source: Energy.gov [DOE]

    This reference guide has been developed to address the competency statements in the July 2011 version of DOE-STD-1160-2011, Occupational Safety Functional Area Qualification Standard.

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

    Office of Scientific and Technical Information (OSTI)

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

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

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

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

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

    Office of Scientific and Technical Information (OSTI)

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

  19. 2014 DOE Occupational Radiation Exposure Report Appendices

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

    Labor Category Occupation Code Occupation Name 562 Groundskeepers 570 Forest Workers 580 Misc. Agriculture 610 Mechanics/Repairers 641 Masons 642 Carpenters 643 Electricians 644 Painters 645 Pipe Fitter 650 Miners/Drillers 660 Misc. Repair/Construction Laborers 850 Handlers/Laborers/Helpers 110 Manager - Adminstrator 400 Sales 450 Admin. Support and Clerical 910 Military 990 Miscellaneous 681 Machinists 682 Sheet Metal Workers 690 Operators, Plant/System/Utility 710 Machine Setup/Operators 771

  20. DOE 2013 Occupational Radiation Exposure Report

    Office of Scientific and Technical Information (OSTI)

    2013 Occupational Radiation Exposure HSS Office of Environment, Health, Safety and Security This document is available on the U.S. Department of Energy Radiation Exposure Monitoring System Program Web Site at: http://energy.gov/ehss/occupational-radiation-exposure It is the responsibility of the U.S. Department of Energy (DOE) to protect the health and safety of DOE employees, contractors, and subcontractors. The Office of Environment, Health, Safety and Security (EHSS) provides the

  1. Energy Employees Occupational Illness Compensation Program Act (EEOICPA)

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

    Tracking System PIA, Office of Business Operations | Department of Energy Employees Occupational Illness Compensation Program Act (EEOICPA) Tracking System PIA, Office of Business Operations Energy Employees Occupational Illness Compensation Program Act (EEOICPA) Tracking System PIA, Office of Business Operations Energy Employees Occupational Illness Compensation Program Act (EEOICPA) Tracking System PIA, Office of Business Operations PDF icon Energy Employees Occupational Illness

  2. PIA - Richland Occupational Injury and Illness | Department of Energy

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

    Injury and Illness PIA - Richland Occupational Injury and Illness PIA - Richland Occupational Injury and Illness PDF icon PIA - Richland Occupational Injury and Illness More Documents & Publications Occupational Injury & Illness System (01&15) PIA, Idaho National Laboratory PIA - Bonneville Power Adminstration Ethics Helpline

  3. PIA - Savannah River Nuclear Solution (SRNS) Energy Employees Occupational

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

    Illness Compensation Program Act (EEOICPA) | Department of Energy Energy Employees Occupational Illness Compensation Program Act (EEOICPA) PIA - Savannah River Nuclear Solution (SRNS) Energy Employees Occupational Illness Compensation Program Act (EEOICPA) PIA - Savannah River Nuclear Solution (SRNS) Energy Employees Occupational Illness Compensation Program Act (EEOICPA) PDF icon PIA - Savannah River Nuclear Solution (SRNS) Energy Employees Occupational Illness Compensation Program Act

  4. Pantex Occupational Health System (OHS), National Nuclear Security

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

    Administration Pantex Site Office | Department of Energy Pantex Occupational Health System (OHS), National Nuclear Security Administration Pantex Site Office Pantex Occupational Health System (OHS), National Nuclear Security Administration Pantex Site Office Pantex Occupational Health System (OHS), National Nuclear Security Administration Pantex Site Office PDF icon Pantex Occupational Health System (OHS), National Nuclear Security Administration Pantex Site Office More Documents &

  5. 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.

  6. Annual DOE Occupational Radiation Exposure | 2014 Report | Department of

    Energy Savers [EERE]

    Energy DOE Occupational Radiation Exposure | 2014 Report Annual DOE Occupational Radiation Exposure | 2014 Report The DOE 2014 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2014. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 96 DOE organizations submitting radiation exposure reports for 2014 have been grouped into 32

  7. Mercury switch with non-wettable electrodes

    DOE Patents [OSTI]

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

    1987-01-01

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

  8. 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.

  9. A technical framework to describe occupant behavior for building energy simulations

    SciTech Connect (OSTI)

    Turner , William; Hong , Tianzhen

    2013-12-20

    Green buildings that fail to meet expected design performance criteria indicate that technology alone does not guarantee high performance. Human influences are quite often simplified and ignored in the design, construction, and operation of buildings. Energy-conscious human behavior has been demonstrated to be a significant positive factor for improving the indoor environment while reducing the energy use of buildings. In our study we developed a new technical framework to describe energy-related human behavior in buildings. The energy-related behavior includes accounting for individuals and groups of occupants and their interactions with building energy services systems, appliances and facilities. The technical framework consists of four key components: i. the drivers behind energy-related occupant behavior, which are biological, societal, environmental, physical, and economical in nature ii. the needs of the occupants are based on satisfying criteria that are either physical (e.g. thermal, visual and acoustic comfort) or non-physical (e.g. entertainment, privacy, and social reward) iii. the actions that building occupants perform when their needs are not fulfilled iv. the systems with which an occupant can interact to satisfy their needs The technical framework aims to provide a standardized description of a complete set of human energy-related behaviors in the form of an XML schema. For each type of behavior (e.g., occupants opening/closing windows, switching on/off lights etc.) we identify a set of common behaviors based on a literature review, survey data, and our own field study and analysis. Stochastic models are adopted or developed for each type of behavior to enable the evaluation of the impact of human behavior on energy use in buildings, during either the design or operation phase. We will also demonstrate the use of the technical framework in assessing the impact of occupancy behavior on energy saving technologies. The technical framework presented is part of our human behavior research, a 5-year program under the U.S. - China Clean Energy Research Center for Building Energy Efficiency.

  10. Alternative Fuels Data Center: Colonial Williamsburg Switches to

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

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

  11. DOE Occupational Radiation Exposure, 2001 report

    SciTech Connect (OSTI)

    None, None

    2001-12-31

    The goal of the U.S. Department of Energy (DOE) is to conduct its operations, including radiological, to ensure the safety and health of all DOE employees, contractors, and subcontractors. The DOE strives to maintain radiation exposures to its workers below administrative control levels and DOE limits and to further reduce these exposures to levels that are “As Low As Reasonably Achievable” (ALARA). The 2001 DOE Occupational Radiation Exposure Report provides a summary and analysis of the occupational radiation exposure received by individuals associated with DOE activities. The DOE mission includes stewardship of the nuclear weapons stockpile and the associated facilities, environmental restoration of DOE, and energy research.

  12. 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.

  13. Magnetic switch for reactor control rod

    DOE Patents [OSTI]

    Germer, John H. (San Jose, CA)

    1986-01-01

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

  14. Micro electro mechanical system optical switching

    DOE Patents [OSTI]

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

    2013-12-17

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

  15. Nanoeletromechanical switch and logic circuits formed therefrom

    DOE Patents [OSTI]

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

    2010-05-18

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

  16. 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.

  17. 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.

  18. Wireless Occupancy Sensors for Lighting Controls: An Applications...

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

    Occupancy Sensor Lighting Energy Savings 2 Breakroom 29% Classroom 40-46% Conference Room ... Can You Expect to Save When You Install Occupancy Sensor Lighting Controls in These Rooms? ...

  19. 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.

  20. Explosive-driven, high speed, arcless switch

    DOE Patents [OSTI]

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

    1987-01-01

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

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

    DOE Patents [OSTI]

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

    1993-01-19

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

  2. CRAD, Occupational Radiation Protection Program- December 4, 2012

    Office of Energy Efficiency and Renewable Energy (EERE)

    Occupational Radiation Protection Program Inspection Criteria, Approach, and Lines of Inquiry (HSS CRAD 45-35, Rev. 1)

  3. Annual DOE Occupational Radiation Exposure | 2006 Report | Department of

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

    Energy 06 Report Annual DOE Occupational Radiation Exposure | 2006 Report The DOE 2006 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2006. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 95 DOE organizations submitting radiation exposure reports for 2006 have been grouped into 34 sites across the complex. This

  4. Federal Employee Occupational Safety And Health (FEOSH) Program Overview |

    Energy Savers [EERE]

    Department of Energy Federal Employee Occupational Safety And Health (FEOSH) Program Overview Federal Employee Occupational Safety And Health (FEOSH) Program Overview Congress established Public Law 91-596, The Occupational Safety and Health Act of 1970 (OSH Act) "to ensure so far as possible every working man and woman in the Nation safe and healthful working conditions and to preserve our human resources." PDF icon Federal Employee Occupational Safety And Health (FEOSH) Program

  5. DOE 2013 occupational radiation exposure (Technical Report) | SciTech

    Office of Scientific and Technical Information (OSTI)

    Connect DOE 2013 occupational radiation exposure Citation Details In-Document Search Title: DOE 2013 occupational radiation exposure The Office of Analysis within the U.S. Department of Energy (DOE) Office of Environment, Health, Safety and Security (EHSS) publishes the annual DOE Occupational Radiation Exposure Report to provide an overview of the status of radiation protection practices at DOE (including the National Nuclear Security Administration [NNSA]). The DOE 2013 Occupational

  6. Annual DOE Occupational Radiation Exposure | 1992 - 1994 Report |

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

    Department of Energy 2 - 1994 Report Annual DOE Occupational Radiation Exposure | 1992 - 1994 Report The DOE Occupational Radiation Exposure Report, 1992-1994 reports occupational radiation exposures incurred by individuals at U.S. Department of Energy (DOE) facilities from 1992 through 1994. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. This information is analyzed and trended over time to provide a measure

  7. Annual DOE Occupational Radiation Exposure | 1995 Report | Department of

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

    Energy 5 Report Annual DOE Occupational Radiation Exposure | 1995 Report The DOE Occupational Radiation Exposure Report, 1995 reports occupational radiation exposures incurred by individuals at U.S. Department of Energy (DOE) facilities during the calendar year 1995. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. This information is analyzed and trended over time to provide a measure of the DOE's performance

  8. Annual DOE Occupational Radiation Exposure | 1996 Report | Department of

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

    Energy 6 Report Annual DOE Occupational Radiation Exposure | 1996 Report The DOE Occupational Radiation Exposure Report, 1996 reports occupational radiation exposures incurred by individuals at U.S. Department of Energy (DOE) facilities during the calendar year 1996. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. This information is analyzed and trended over time to provide a measure of the DOE's performance

  9. Annual DOE Occupational Radiation Exposure | 1997 Report | Department of

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

    Energy 7 Report Annual DOE Occupational Radiation Exposure | 1997 Report The DOE Occupational Radiation Exposure Report, 1997 reports occupational radiation exposures incurred by individuals at U.S. Department of Energy (DOE) facilities during the calendar year 1997. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. This information is analyzed and trended over time to provide a measure of DOE's performance in

  10. Annual DOE Occupational Radiation Exposure | 1998 Report | Department of

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

    Energy 8 Report Annual DOE Occupational Radiation Exposure | 1998 Report The DOE Occupational Radiation Exposure Report, 1998 reports occupational radiation exposures incurred by individuals at DOE facilities during the calendar year 1998. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. This information is analyzed and trended over time to provide a measure of DOE's performance in protecting its workers from

  11. Annual DOE Occupational Radiation Exposure | 1999 Report | Department of

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

    Energy 9 Report Annual DOE Occupational Radiation Exposure | 1999 Report The DOE Occupational Radiation Exposure Report, 1999 reports occupational radiation exposures incurred by individuals at DOE facilities during the calendar year 1999. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 103 DOE organizations submitting radiation exposure reports for 1999 have been grouped into 29 geographic sites across

  12. Annual DOE Occupational Radiation Exposure | 2000 Report | Department of

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

    Energy 0 Report Annual DOE Occupational Radiation Exposure | 2000 Report The DOE 2000 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2000. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 104 DOE organizations submitting radiation exposure reports for 2000 have been grouped into 28 geographic sites across the complex.

  13. Annual DOE Occupational Radiation Exposure | 2001 Report | Department of

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

    Energy 1 Report Annual DOE Occupational Radiation Exposure | 2001 Report The DOE 2001 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2001. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 107 DOE organizations submitting radiation exposure reports for 2001 have been grouped into 30 geographic sites across the complex.

  14. Annual DOE Occupational Radiation Exposure | 2002 Report | Department of

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

    Energy 2 Report Annual DOE Occupational Radiation Exposure | 2002 Report The DOE 2002 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2002. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 102 DOE organizations submitting radiation exposure reports for 2002 have been grouped into 29 geographic sites across the complex.

  15. Annual DOE Occupational Radiation Exposure | 2003 Report | Department of

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

    Energy 3 Report Annual DOE Occupational Radiation Exposure | 2003 Report The DOE 2003 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2003. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 99 DOE organizations submitting radiation exposure reports for 2003 have been grouped into 27 geographic sites across the complex. This

  16. Annual DOE Occupational Radiation Exposure | 2004 Report | Department of

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

    Energy 4 Report Annual DOE Occupational Radiation Exposure | 2004 Report The DOE 2004 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2004. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 96 DOE organizations submitting radiation exposure reports for 2004 have been grouped into 25 geographic sites across the complex. This

  17. Annual DOE Occupational Radiation Exposure | 2005 Report | Department of

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

    Energy 5 Report Annual DOE Occupational Radiation Exposure | 2005 Report The DOE 2005 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2005. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 101 DOE organizations submitting radiation exposure reports for 2005 have been grouped into 26 geographic sites across the complex.

  18. Annual DOE Occupational Radiation Exposure | 2007 Report | Department of

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

    Energy 7 Report Annual DOE Occupational Radiation Exposure | 2007 Report The DOE 2007 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2007. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 90 DOE organizations submitting radiation exposure reports for 2007 have been grouped into 29 sites across the complex. This

  19. Annual DOE Occupational Radiation Exposure | 2008 Report | Department of

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

    Energy 8 Report Annual DOE Occupational Radiation Exposure | 2008 Report The DOE 2008 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2008. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 92 DOE organizations submitting radiation exposure reports for 2008 have been grouped into 30 sites across the complex. This

  20. Annual DOE Occupational Radiation Exposure | 2009 Report | Department of

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

    Energy 9 Report Annual DOE Occupational Radiation Exposure | 2009 Report The DOE 2009 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2009. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 100 DOE organizations submitting radiation exposure reports for 2009 have been grouped into 32 sites across the complex. This

  1. Annual DOE Occupational Radiation Exposure | 2010 Report | Department of

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

    Energy 0 Report Annual DOE Occupational Radiation Exposure | 2010 Report The DOE 2010 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2010. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 101 DOE organizations submitting radiation exposure reports for 2010 have been grouped into 32 sites across the complex. This

  2. Annual DOE Occupational Radiation Exposure | 2011 Report | Department of

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

    Energy 1 Report Annual DOE Occupational Radiation Exposure | 2011 Report The DOE 2011 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2011. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 107 DOE organizations submitting radiation exposure reports for 2011 have been grouped into 32 sites. This information has been

  3. Annual DOE Occupational Radiation Exposure | 2012 Report | Department of

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

    Energy 2 Report Annual DOE Occupational Radiation Exposure | 2012 Report The DOE 2012 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2012. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The 94 DOE organizations submitting radiation exposure reports for 2012 have been grouped into 32 sites. This information has been analyzed

  4. Annual DOE Occupational Radiation Exposure | 2013 Report | Department of

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

    Energy 3 Report Annual DOE Occupational Radiation Exposure | 2013 Report The DOE 2013 Occupational Radiation Exposure Report analyzes occupational radiation exposures at U.S. Department of Energy (DOE) facilities during 2013. This report includes occupational radiation exposure information for all DOE employees, contractors, and subcontractors, as well as members of the public in controlled areas that are monitored for exposure to radiation. The 105 DOE organizations submitting radiation

  5. The DOE Security Plan for the Energy Employees Occupational Illness

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

    Compensation Program | Department of Energy The DOE Security Plan for the Energy Employees Occupational Illness Compensation Program The DOE Security Plan for the Energy Employees Occupational Illness Compensation Program January 23, 2009 DOE Security Plan for the Energy Employees Occupational Illness Compensation Program The U.S. Congress passed the Energy Employees Occupational Illness Compensation Program Act (EEOICPA) in 2000. The purpose of EEOICPA is to compensate eligible employees

  6. A Review of High Occupancy Vehicle (HOV) Lane Performance and...

    Open Energy Info (EERE)

    URI: cleanenergysolutions.orgcontentreview-high-occupancy-vehicle-hov-lan Language: English Policies: Deployment Programs DeploymentPrograms: Demonstration & Implementation This...

  7. Los Alamos Lab: Radiation Protection: Annual Occupational Radiation

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

    Dosimetry Report Annual Occupational Radiation Dosimetry Report Print information on Annual Occupational Radiation Dosimetry Report (pdf). This webpage provides information to help you understand the dose quantities being reported to you on your Annual Occupational Radiation Dosimetry Report. If you would like general information about radiation exposure, please refer to www.radiationanswers.org. Title 10 Code of Federal Regulation Part 835, Occupational Radiation Protection (10 CFR 835),

  8. Occupational Health Manager PIA, Carlsbad Field Office | Department...

    Energy Savers [EERE]

    Health Manager PIA, Carlsbad Field Office More Documents & Publications Occupational Medicine - Assistant PIA, Idaho National Laboratory Integrated Safety Management Workshop...

  9. ORO Energy Employees Occupational Illness Compensation Program(EEOICPA)PIA,

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

    Oak Ridge Operations Office | Department of Energy Energy Employees Occupational Illness Compensation Program(EEOICPA)PIA, Oak Ridge Operations Office ORO Energy Employees Occupational Illness Compensation Program(EEOICPA)PIA, Oak Ridge Operations Office ORO Energy Employees Occupational Illness Compensation Program(EEOICPA)PIA, Oak Ridge Operations Office PDF icon ORO Energy Employees Occupational Illness Compensation Program(EEOICPA)PIA, Oak Ridge Operations Office More Documents &

  10. 2015 DOE Annual Occupational Medicine Workshop & Webinar (OMWW) - March

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

    16-17, 2015 | Department of Energy DOE Annual Occupational Medicine Workshop & Webinar (OMWW) - March 16-17, 2015 2015 DOE Annual Occupational Medicine Workshop & Webinar (OMWW) - March 16-17, 2015 December 18, 2014 - 3:13pm Addthis 2015 DOE Annual Occupational Medicine Workshop & Webinar (OMWW) - March 16-17, 2015 The DOE Annual Occupational Medicine Workshop & Webinar (OMWW) is a valuable training opportunity established by the Office of Health, Safety, and Security in

  11. Enenrgy Employees Occupational Illness Compensation Program Act (EEOICPA)

    Energy Savers [EERE]

    Tracking System, PIA, Savannah River Operations Office | Department of Energy Enenrgy Employees Occupational Illness Compensation Program Act (EEOICPA) Tracking System, PIA, Savannah River Operations Office Enenrgy Employees Occupational Illness Compensation Program Act (EEOICPA) Tracking System, PIA, Savannah River Operations Office Enenrgy Employees Occupational Illness Compensation Program Act (EEOICPA) Tracking System, PIA, Savannah River Operations Office PDF icon Enenrgy Employees

  12. FAQS Gap Analysis Qualification Card - Occupational Safety | Department

    Office of Environmental Management (EM)

    of Energy Occupational Safety FAQS Gap Analysis Qualification Card - Occupational Safety Functional Area Qualification Standard Gap Analysis Qualification Cards outline the differences between the last and latest version of the FAQ Standard. File Occupational Safety Gap Analysis Qualification Card More Documents & Publications FAQS Gap Analysis Qualification Card - Environmental Restoration FAQS Gap Analysis Qualification Card - Waste Management FAQS Gap Analysis Qualification Card -

  13. Optically initiated silicon carbide high voltage switch

    DOE Patents [OSTI]

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

    2011-02-22

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

  14. Isolated and soft-switched power converter

    DOE Patents [OSTI]

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

    2002-01-01

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

  15. Q-Switched Raman laser system

    DOE Patents [OSTI]

    George, E. Victor (Livermore, CA)

    1985-01-01

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

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

    DOE Patents [OSTI]

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

    2010-05-25

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

  17. Exhibit A-1. Labor Categories and Occupation Codes

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

    A-1. Labor Categories and Occupation Codes rems_a-1_2006.htm[1/23/2014 12:25:00 PM] DOE Occupational Radiation Exposure: 2006 Annual Report Exhibit A-1. Labor Categories and Occupation Codes. The following is a list of the Occupation Codes that are reported with each individual's dose record to the DOE Radiation Exposure Monitoring System (REMS) in accordance wtih DOE M 231.1-1A. Occupation Codes are grouped into Labor Categories for the purposes of analysis and summary in this report. The

  18. DOE occupational radiation exposure 2000 report

    SciTech Connect (OSTI)

    none,

    2000-12-31

    The U.S. Department of Energy (DOE) Office of Safety and Health publishes the annual DOE Occupational Radiation Exposure Report. This report is intended to be a valuable tool for DOE and DOE contractor managers in managing radiological safety programs and to assist them in prioritizing resources. We appreciate the efforts and contributions from the various stakeholders within and outside DOE in making this report most useful to them. This report includes occupational radiation exposure information for all monitored DOE employees, contractors, subcontractors, and visitors. The exposure information is analyzed in terms of aggregate data, dose to individuals, and dose by site. For the purposes of examining trends, data for the past 5 years are included in the analysis.

  19. DOE occupational radiation exposure 1998 report

    SciTech Connect (OSTI)

    none,

    1998-12-31

    The U.S. Department of Energy (DOE) Office of Environment, Safety and Health with support from Environment Safety and Health Technical Information Services publishes the DOE Occupational Radiation Exposure Report. This report is intended to be a valuable tool for DOE/DOE contractor managers in managing radiological safety programs and to assist them in prioritizing resources. We appreciate the efforts and contributions from the various stakeholders within and outside DOE and hope we have succeeded in making the report more useful. This report includes occupational radiation exposure information for all monitored DOE employees, contractors, subcontractors, and visitors. The exposure information is analyzed in terms of aggregate data, dose to individuals, and dose by site. For the purposes of examining trends, data for the past 5 years are included in the analysis.

  20. DOE occupational radiation exposure 1997 report

    SciTech Connect (OSTI)

    none,

    1997-12-31

    The U.S. Department of Energy (DOE) Office of Environment, Safety and Health publishes the DOE Occupational Radiation Exposure Report. This report is intended to be a valuable tool for DOE/DOE contractor managers in managing radiological safety programs and to assist them in prioritizing resources. We appreciate the efforts and contributions from the various stakeholders within and outside DOE and hope we have succeeded in making the report more useful. This report includes occupational radiation exposure information for all monitored DOE employees, contractors, subcontractors, and visitors. The exposure information is analyzed in terms of aggregate data, dose to individuals, and dose by site. For the purposes of examining trends, data for the past 5 years are included in the analysis.

  1. DOE occupational radiation exposure 1996 report

    SciTech Connect (OSTI)

    none,

    1996-12-31

    The U.S. Department of Energy (DOE) Office of Environment, Safety and Health publishes the DOE Occupational Radiation Exposure Report. This report is intended to be a valuable tool for DOE/DOE contractor managers in their management of radiological safety programs and to assist them in the prioritization of resources. We appreciate the efforts and contributions from the various stakeholders within and outside the DOE and hope we have succeeded in making the report more useful. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. The exposure information is analyzed in terms of collective data, dose to individuals, and dose by site. For the purposes of examining trends, data for the past 5 years are included in the analysis.

  2. DOE occupational radiation exposure 2004 report

    SciTech Connect (OSTI)

    none,

    2004-12-31

    The U.S. Department of Energy (DOE) Office of Corporate Performance Assessment (EH-3) publishes the annual DOE Occupational Radiation Exposure Report. This report is intended to be a valuable tool for DOE and DOE contractor managers and workers in managing radiological safety programs and to assist them in prioritizing resources. We appreciate the efforts and contributions from the various stakeholders within and outside DOE to make the report most useful. This report includes occupational radiation exposure information for all monitored DOE employees, contractors, and subcontractors, as well as members of the public. DOE is defined to include the National Nuclear Security Administration sites. The exposure information is analyzed in terms of aggregate data, dose to individuals, and dose by site. For the purposes of examining trends, data for the past 5 years are included in the analysis.

  3. DOE occupational radiation exposure 2002 report

    SciTech Connect (OSTI)

    none,

    2002-12-31

    The U.S. Department of Energy (DOE) Office of Corporate Performance Assessment (EH-3) publishes the annual DOE Occupational Radiation Exposure Report. This report is intended to be a valuable tool for DOE and DOE contractor managers and workers in managing radiological safety programs and to assist them in prioritizing resources. We appreciate the efforts and contributions from the various stakeholders within and outside DOE to make the report most useful. This report includes occupational radiation exposure information for all monitored DOE employees, contractors, subcontractors, and members of the public. The exposure information is analyzed in terms of aggregate data, dose to individuals, and dose by site. For the purposes of examining trends, data for the past 5 years are included in the analysis.

  4. DOE 2014 Occupational Radiation Exposure Report

    Office of Environmental Management (EM)

    T A * S H I E L D * A L A R A * N E U T R O N * ELECTRO N * T E D * I N T E R N A L * C E D * G A M M A * B E T A * S H I E L D * A L A R A * N E U T R O N * E L E C TR ON * TE D * IN T E R N A L * C E D * G A M M A * B E T A * S H I E L D * A L A R A September 2015 DOE 2014 OCCUPATIONAL RADIATION EXPOSURE This document is available on the U.S. Department of Energy Radiation Exposure Monitoring System Program Web Site at: http://energy.gov/ehss/occupational-radiation-exposure Foreword iii

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

    Office of Scientific and Technical Information (OSTI)

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

  6. Fast Superconducting Switch for Superconducting Power Devices - Energy

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

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

  7. Headquarters Occupational Safety and Health Program

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

    2001-11-03

    To implement the Occupational Safety and Health Program for Department of Energy (DOE) Headquarters employees as an element of the DOE Integrated Safety Management System. Cancels: HQ 3790.2A. Canceled by DOE O 251.91. This directive was reviewed and certified as current and necessary by Bruce M. Carnes, Director, Office of Management, Budget and Evaluation/Chief Financial Officer, 9/18/02. Canceled by DOE N 251.91.

  8. DOE 2012 Occupational Radiation Exposure Report

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

    T A * S H I E L D * A L A R A * N E U T R O N * EL A * B E T A * S H I E L D * A L A R A * N E U T R O N * E L E C TR O E T A * S H I E L L A R A DOE 2012 OCCUPATIONAL RADIATION ...

  9. PRIVACY IMPACT ASSESSMENT: INL Energy Employees' Occupational

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

    INL Energy Employees' Occupational Illness Compensation Program Act (EEOICPA) Tracking Database PIA Template Version 3 - May, 2009 Department of Energy Privacy Impact Assessment (PIA) Guidance Is provided In the template. See DOE Order 206.1, Department of Energy Privacy Program, Appendix A, Privacy Impact Assessments, for requirements and additional guidance for conducting a PIA: http://www.directives.doe.gov/pdfs/doe/doetextlneword/206/o2061.pdf Please complete electronically: no hand-written

  10. Job Seekers - HPMC Occupational Health Services

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

    Job Seekers About HPMC OMS Contact Us Directions Event Calendar Hours of Operation How We Compare Job Seekers Notice of Privacy Practices Patient Rights & Responsibilities Frequently Asked Questions Job Seekers Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size Search the links below for positions available to interested candidates. Candidates selected for positions with HPMC Occupational Medical Services are hired and employed by either HPM Corporation or

  11. IMAGE PROCESSING OCCUPANCY SENSOR - Energy Innovation Portal

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

    115910 Site Map Printable Version Share this resource About Search Categories (15) Advanced Materials Biomass and Biofuels Building Energy Efficiency Electricity Transmission Energy Analysis Energy Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles and Fuels Wind Energy Partners (27) Visual Patent Search Success Stories Find More Like This Return to Search IMAGE PROCESSING OCCUPANCY SENSOR United

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

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

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

  13. RF-MEMS capacitive switches with high reliability

    DOE Patents [OSTI]

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

    2013-09-03

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

  14. Revealing Occupancy Patterns in Office Buildings Through the use of Annual Occupancy Sensor Data

    SciTech Connect (OSTI)

    Carlos Duarte; Kevin Van Den Wymelenberg; Craig Rieger

    2013-06-01

    Energy simulation programs like DOE-2 and EnergyPlus are tools that have been proven to aid with energy calculations to predict energy use in buildings. Some inputs to energy simulation models are relatively easy to find, including building size, orientation, construction materials, and HVAC system size and type. Others vary with time (e.g. weather and occupancy) and some can be a challenge to estimate in order to create an accurate simulation. In this paper, the analysis of occupancy sensor data for a large commercial, multi-tenant office building is presented. It details occupancy diversity factors for private offices and summarizes the same for open offices, hallways, conference rooms, break rooms, and restrooms in order to better inform energy simulation parameters. Long-term data were collected allowing results to be presented to show variations of occupancy diversity factors in private offices for time of day, day of the week, holidays, and month of the year. The diversity factors presented differ as much as 46% from those currently published in ASHRAE 90.1 2004 energy cost method guidelines, a document referenced by energy modelers regarding occupancy diversity factors for simulations. This may result in misleading simulation results and may introduce inefficiencies in the final equipment and systems design.

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

    DOE Patents [OSTI]

    Powell, J.G.

    1993-11-16

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

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

    DOE Patents [OSTI]

    Powell, James G. (Clifton Park, NY)

    1993-01-01

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

  17. Gas mixture for diffuse-discharge switch

    DOE Patents [OSTI]

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

    1984-01-01

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

  18. Multiple acousto-optic q-switch

    DOE Patents [OSTI]

    Deason, Vance A. (Idaho Falls, ID)

    1993-01-01

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

  19. Multiple acousto-optic q-switch

    DOE Patents [OSTI]

    Deason, Vance A.

    1993-12-07

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

  20. Gas mixture for diffuse-discharge switch

    DOE Patents [OSTI]

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

    1982-08-31

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

  1. Occupational ALARA Program Guide for Use with Title 10, CFR, Part 835, Occupational Radiation Protection

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

    1999-03-17

    This Guide provides an acceptable methodology for establishing and operating an occupational "as low as is reasonably achievable" (ALARA) program that will comply with U.S. Department of Energy (DOE) requirements specified in Title 10 of the Code of Federal Regulations (CFR), Part 835, Occupational Radiation Protection (DOE 1998a), hereinafter referred to as 10 CFR 835. For completeness, this Guide also references detailed guidance provided in the DOE-STD-1098-99, RADIOLOGICAL CONTROL (DOE 1999a), hereinafter referred to as the RCS.

  2. Switch Switch

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

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

  3. Systems and methods for sensing occupancy

    DOE Patents [OSTI]

    Dasu, Aravind; Mathias, Dean; Liu, Chenguang; Christensen, Randy; Christensen, Bruce

    2014-09-09

    A computer implemented method for sensing occupancy of a workspace includes creating a difference image that represents luminance differences of pixels in past and current images of the workspace resulting from motion in the workspace, determining motion occurring in regions of the workspace based on the difference image, and altering a workspace environment based at least in part on the determined motion. The method also includes determining which pixels in the difference image represent persistent motion that can be ignored and determining which pixels representing motion in the difference image are invalid because the pixels are isolated from other pixels representing motion.

  4. Occupational Safety Review of High Technology Facilities

    SciTech Connect (OSTI)

    Lee Cadwallader

    2005-01-31

    This report contains reviews of operating experiences, selected accident events, and industrial safety performance indicators that document the performance of the major US DOE magnetic fusion experiments and particle accelerators. These data are useful to form a basis for the occupational safety level at matured research facilities with known sets of safety rules and regulations. Some of the issues discussed are radiation safety, electromagnetic energy exposure events, and some of the more widespread issues of working at height, equipment fires, confined space work, electrical work, and other industrial hazards. Nuclear power plant industrial safety data are also included for comparison.

  5. DOE 2008 Occupational Radiation Exposure October 2009

    SciTech Connect (OSTI)

    U.S. Department of Energy, Office of Health, Safety and Security

    2009-10-01

    A major priority of the U.S. Department of Energy (DOE) is to ensure the health, safety, and security of DOE employees, contractors, and subcontractors. The Office of Health, Safety and Security (HSS) provides the corporate-level leadership and strategic vision necessary to better coordinate and integrate health, safety, environment, security, enforcement, and independent oversight programs. One function that supports this mission is the DOE Corporate Operating Experience Program that provides collection, analysis, and dissemination of performance indicators, such as occupational radiation exposure information. This analysis supports corporate decision-making and synthesizes operational information to support continuous environment, safety, and health improvement across the DOE complex.

  6. CBEI: Improving Code Compliance with Change of Occupancy Retrofits - 2015

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

    Peer Review | Department of Energy Improving Code Compliance with Change of Occupancy Retrofits - 2015 Peer Review CBEI: Improving Code Compliance with Change of Occupancy Retrofits - 2015 Peer Review Presenter: Jennifer Senick, Rutgers View the Presentation PDF icon CBEI: Improving Code Compliance with Change of Occupancy Retrofits - 2015 Peer Review More Documents & Publications Fossil Fuel-Generated Energy Consumption Reduction for New Federal Buildings and Major Renovations of

  7. 2015 DOE Annual Occupational Medicine Workshop and Webinar (OMWW) |

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

    Department of Energy 15 DOE Annual Occupational Medicine Workshop and Webinar (OMWW) 2015 DOE Annual Occupational Medicine Workshop and Webinar (OMWW) March 16-17, 2015 DOE Annual Occupational Medicine Workshop and Webinar (OMWW): Registration, Directions, Lodging, and Access REGISTRATION AND CONFERENCE SYSTEM The 2015 DOE Annual OMWW will be held March 16-17 in the Small Auditorium on the ground floor of the DOE Headquarters Forrestal Building in Washington, DC. Registration for the 2015

  8. Energy Employees Occupational Illness Compensation Program Act (EEOICPA)

    Energy Savers [EERE]

    Program | Department of Energy Energy Employees Occupational Illness Compensation Program Act (EEOICPA) Program Energy Employees Occupational Illness Compensation Program Act (EEOICPA) Program EEOICPA Program The U.S. Department of Labor (DOL) administers the EEOICPA Program. For information on how to submit an EEOICPA claim, please go to: U.S. Department of Labor, Division of Energy Employees Occupational Illness Compensation DOE's role is to provide requested record information to DOL.

  9. Annual DOE Occupational Radiation Exposure | 1989 Report | Department of

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

    Energy 89 Report Annual DOE Occupational Radiation Exposure | 1989 Report The Twenty-second Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1989. This report includes occupational radiation exposure information for all DOE employees and contractors that are monitored for exposure to radiation. This information has been analyzed and trends over time

  10. Annual DOE Occupational Radiation Exposure | 1990 Report | Department of

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

    Energy 0 Report Annual DOE Occupational Radiation Exposure | 1990 Report The Twenty-third Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1990. This report includes occupational radiation exposure information for all DOE employees and contractors that are monitored for exposure to radiation. This information has been analyzed and trends over time

  11. Annual DOE Occupational Radiation Exposure | 1991 Report | Department of

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

    Energy 1 Report Annual DOE Occupational Radiation Exposure | 1991 Report The Twenty-fourth Annual Report of Radiation Exposures for DOE & DOE Contractor Employees analyzes occupational radiation exposures at the U.S. Department of Energy (DOE) and its contractor employees during 1991. This report includes occupational radiation exposure information for all DOE employees and contractors that are monitored for exposure to radiation. This information has been analyzed and trends over time

  12. NREL Adds Eyes, Brains to Occupancy Detection - News Feature | NREL

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

    NREL Adds Eyes, Brains to Occupancy Detection June 4, 2013 This photo shows the inside of the IPOS device, with three black plugs connected to a green circuit board that holds a variety of electronics. Enlarge image Inside view of the computer in the Image Processing Occupancy Sensor (IPOS). The IPOS uses a synergistic approach with human face and motion detection through computer vision algorithms. The IPOS classifies additional information including the number of occupants, their positions on

  13. Wireless Occupancy Sensors for Lighting Controls: An Applications Guide for

    Energy Savers [EERE]

    Federal Facility Managers | Department of Energy Occupancy Sensors for Lighting Controls: An Applications Guide for Federal Facility Managers Wireless Occupancy Sensors for Lighting Controls: An Applications Guide for Federal Facility Managers This guide provides federal facility managers with an overview of the energy savings potential of wireless lighting occupancy sensors for various room types, cost considerations, key steps to successful installation of wireless sensors, pros and cons

  14. OSHA Rulemaking on Basic Program Elements for Federal Employee Occupational

    Energy Savers [EERE]

    Safety and Health Programs and Related Matters; 29 CFR 1960 | Department of Energy OSHA Rulemaking on Basic Program Elements for Federal Employee Occupational Safety and Health Programs and Related Matters; 29 CFR 1960 OSHA Rulemaking on Basic Program Elements for Federal Employee Occupational Safety and Health Programs and Related Matters; 29 CFR 1960 November 26, 2004 Federal Register copy of OSHA Rulemaking on Basic Program Elements for Federal Employee Occupational Safety and Health

  15. Occupational Radiation Exposures at the Department of Energy | Department

    Energy Savers [EERE]

    of Energy Occupational Radiation Exposures at the Department of Energy Occupational Radiation Exposures at the Department of Energy Nimi Rao*, U.S. Department of Energy ; Derek Hagemeyer, Oak Ridge Institute for Science and Education Abstract: The DOE Radiation Exposure Monitoring System (REMS) project began in 1969 under the AEC and has undergone significant evolutions since inception. The system serves as the central repository for occupational radiation exposure records for all

  16. Order Module--NNSA OCCUPATIONAL RADIATION PROTECTION | Department of Energy

    Energy Savers [EERE]

    NNSA OCCUPATIONAL RADIATION PROTECTION Order Module--NNSA OCCUPATIONAL RADIATION PROTECTION The familiar level of this module is designed to provide the basic information to meet the requirements that are related to 10 CFR 835, "Occupational Radiation Protection," in the following DOE Functional Area Qualification Standards: DOE-STD-1177-2004, Emergency Management DOE-STD-1151-2002, Facility Representative DOE-STD-1146-2007, General Technical Base DOE-STD-1138-2007, Industrial Hygiene

  17. A Basic Overview of the Energy Employees Occupational Illness Compensation

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

    Program | Department of Energy Policy, Guidance & Reports » Worker Health & Safety » A Basic Overview of the Energy Employees Occupational Illness Compensation Program A Basic Overview of the Energy Employees Occupational Illness Compensation Program January 2015 A Basic Overview of the Energy Employees Occupational Illness Compensation Program This pamphlet is developed by the Department of Energy (DOE) as an outreach and awareness tool to assist former and current DOE Federal,

  18. FAQS Job Task Analyses - Occupational Safety | Department of Energy

    Office of Environmental Management (EM)

    Occupational Safety FAQS Job Task Analyses - Occupational Safety FAQS Job Task Analyses are performed on the Function Area Qualification Standards. The FAQS Job Task Analyses consists of: Developing a comprehensive list of tasks that define the job such as the duties and responsibilities which include determining their levels of importance and frequency. Identifying and evaluating competencies. Last step is evaluating linkage between job tasks and competencies. PDF icon FAQS JTA - Occupational

  19. Energy Employees Occupational Illness Compensation Program | Department of

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

    Energy Energy Employees Occupational Illness Compensation Program Energy Employees Occupational Illness Compensation Program The Energy Employees Occupational Illness Compensation Program Act (EEOICPA) was enacted to provide compensation and medical benefits to employees who worked at certain Department of Energy (DOE) facilities, including contractors and subcontractors at those locations, and certain of its vendors. Adjudication of issues pertaining to all claims for benefits under the

  20. LM Records Handling System (LMRHS01) - Energy Employees Occupational

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

    Illness Compensation Program Act, Office of Legacy Management | Department of Energy Energy Employees Occupational Illness Compensation Program Act, Office of Legacy Management LM Records Handling System (LMRHS01) - Energy Employees Occupational Illness Compensation Program Act, Office of Legacy Management LM Records Handling System (LMRHS01) - Energy Employees Occupational Illness Compensation Program Act, Office of Legacy Management PDF icon LM Records Handling System (LMRHS01) - Energy

  1. Code of Federal Regulations PART 835-OCCUPATIONAL RADIATION PROTECTION

    Office of Environmental Management (EM)

    Subpart A - General Provisions | Department of Energy PART 835-OCCUPATIONAL RADIATION PROTECTION Subpart A - General Provisions Code of Federal Regulations PART 835-OCCUPATIONAL RADIATION PROTECTION Subpart A - General Provisions The rules in this part establish radiation protection standards, limits, and program requirements for protecting individuals from ionizing radiation resulting from the conduct of DOE activities. PDF icon Code of Federal Regulations PART 835-OCCUPATIONAL RADIATION

  2. DOE Issues Request for Proposals for Hanford Site Occupational Medical

    Office of Environmental Management (EM)

    Services | Department of Energy Proposals for Hanford Site Occupational Medical Services DOE Issues Request for Proposals for Hanford Site Occupational Medical Services November 14, 2011 - 12:00pm Addthis Media Contact Geoff Tyree, DOE Geoffrey.Tyree@rl.doe.gov 509-376-4171 RICHLAND, Wash. - The Department of Energy (DOE) today issued a Request for Proposals (RFP) for an Occupational Medical Services contract at the Hanford Site. The solicitation is for a small-business contractor to perform

  3. Deputy Secretary Memo Regarding Energy Employees Occupational Illness

    Office of Environmental Management (EM)

    Compensation Program Act Interviews of Current and Former Workers | Department of Energy Deputy Secretary Memo Regarding Energy Employees Occupational Illness Compensation Program Act Interviews of Current and Former Workers Deputy Secretary Memo Regarding Energy Employees Occupational Illness Compensation Program Act Interviews of Current and Former Workers February 1, 2010 Energy Employees Occupational Illness Compensation Program Act Interviews of Current and Former Workers The Department

  4. PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational...

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

    and Alcohol Testing System (Assistant)) PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol ...

  5. Code of Federal Regulations PART 835-OCCUPATIONAL RADIATION PROTECTION...

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

    Code of Federal Regulations PART 835-OCCUPATIONAL RADIATION PROTECTION Subpart A - General Provisions The rules in this part establish radiation protection standards, limits, and ...

  6. Wireless Occupancy Sensors for Lighting Controls: An Applications...

    Office of Scientific and Technical Information (OSTI)

    for Lighting Controls: An Applications Guide for Federal Facility Managers Citation Details In-Document Search Title: Wireless Occupancy Sensors for Lighting Controls: An ...

  7. CBEI: Improving Code Compliance with Change of Occupancy Retrofits...

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

    with Change of Occupancy Retrofits - 2015 Peer Review More Documents & Publications Fossil Fuel-Generated Energy Consumption Reduction for New Federal Buildings and Major...

  8. Hawaii Clean Energy Iniative Use and Occupancy Permit | Open...

    Open Energy Info (EERE)

    Reference LibraryAdd to library PermittingRegulatory Guidance - Instructions: Hawaii Clean Energy Iniative Use and Occupancy PermitPermittingRegulatory GuidanceInstructions...

  9. Fiscal Year 2013 Department of Energy Annual Occupational Safety...

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

    Fiscal Year 2013 Department of Energy Annual Occupational Safety and Health Report for Federal Employees to the Secretary of Labor Fiscal Year 2013 Department of Energy Annual...

  10. CRAD, Occupational Safety & Health - Los Alamos National Laboratory...

    Office of Environmental Management (EM)

    & Health - Los Alamos National Laboratory TA 55 SST Facility CRAD, Occupational Safety & Health - Los Alamos National Laboratory TA 55 SST Facility A section of Appendix C to DOE...

  11. PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational...

    Energy Savers [EERE]

    PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) PIA - Savannah...

  12. Occupancy Simulation in Three Residential Research Houses

    SciTech Connect (OSTI)

    Boudreaux, Philip R; Gehl, Anthony C; Christian, Jeffrey E

    2012-01-01

    Three houses of similar floor plan are being compared for energy consumption. The first house is a typical builder house of 2400 ft2 (223 m2) in east Tennessee. The second house contains retrofits available to a home owner such as energy efficient appliances, windows and HVAC, as well as an insulated attic which contains HVAC duct work. The third house was built using optimum-value framing construction with photovoltaic modules and solar water heating. To consume energy researchers have set up appliances, lights, and plug loads to turn on and off automatically according to a schedule based on the Building America Research Benchmark Definition. As energy efficiency continues to be a focus for protecting the environment and conserving resources, experiments involving whole house energy consumption will be done. In these cases it is important to understand how to simulate occupancy so that data represents only house performance and not human behavior. The process for achieving automated occupancy simulation will be discussed. Data comparing the energy use of each house will be presented and it will be shown that the third house used 66% less and the second house used 36% less energy than the control house in 2010. The authors will discuss how energy prudent living habits can further reduce energy use in the third house by 23% over the average American family living in the same house.

  13. DOE occupational radiation exposure 1996 report

    SciTech Connect (OSTI)

    1996-12-31

    The goal of the US Department of Energy (DOE) is to conduct its radiological operations to ensure the health and safety of all DOE employees including contractors and subcontractors. The DOE strives to maintain radiation exposures to its workers below administrative control levels and DOE limits and to further reduce these exposures and releases to levels that are ``As Low As Reasonably Achievable`` (ALARA). The DOE Occupational Radiation Exposure Report, 1996 provides summary and analysis of the occupational radiation exposure received by individuals associated with DOE activities. The DOE mission includes stewardship of the nuclear weapons stockpile and the associated facilities, environmental restoration of DOE and precursor agency sites, and energy research. Collective exposure at DOE has declined by 80% over the past decade due to a cessation in opportunities for exposure during the transition in DOE mission from weapons production to cleanup, deactivation and decommissioning, and changes in reporting requirements and dose calculation methodology. In 1996, the collective dose decreased by 10% from the 1995 value due to decreased doses at five of the seven highest-dose DOE sites. For 1996, these sites attributed the reduction in collective dose to the completion of several decontamination and decommissioning projects, reduced spent fuel storage activities, and effective ALARA practices. This report is intended to be a valuable tool for managers in their management of radiological safety programs and commitment of resources.

  14. Occupant radon exposure in houses with basements

    SciTech Connect (OSTI)

    Franklin, E.M.; Fuoss, S.

    1995-12-31

    This study compares basement and main-level radon exposure based on bi-level week-long radon measurements, occupancy and activity data collected in normal use during heating and non-heating seasons in a geographically-stratified random sample of about 600 Minnesota homes, in response to critiques of radon measurement protocol. Basement radon (RN1) (M=4.5, SD=4.5) and main level (Rn2)(M=2.9, SD=3.4) correlation was 0.8 (p=.00), including seasonal variation. In a 101-house subsample where Rn1 >=4.0 pCi/L and Rn2 <=3.9 pCi/L, maximum household exposure in basements was 1162 pCiHrs (M=120, Sd=207), main-level 2486 pCiHrs (M-434, SD=421). In same households, persons with most basement-time maxed 100 hrs (M=13,SD=23), persons with most main-level time maxed 160 hrs (M=79, SD=39). Basement activities show two patterns, (1) member used it for personal domain, e.g. sleeping, and (2) household used it for general activities, e.g. TV or children`s play. Basement occupancy justifies measurement of radon in the lowest livable housing level.

  15. Elastomeric organic material for switching application

    SciTech Connect (OSTI)

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

    2014-10-15

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

  16. GaAs photoconductive semiconductor switch

    DOE Patents [OSTI]

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

    1998-01-01

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

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

    DOE Patents [OSTI]

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

    2015-11-24

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

  18. DOE 2012 Occupational Radiation Exposure October 2013

    SciTech Connect (OSTI)

    2012-02-02

    The U.S. Department of Energy (DOE) Office of Analysis within the Office of Health, Safety and Security (HSS) publishes the annual DOE Occupational Radiation Exposure Report to provide an overview of the status of radiation protection practices at DOE (including the National Nuclear Security Administration [NNSA]). The DOE 2012 Occupational Radiation Exposure Report provides an evaluation of DOE-wide performance regarding compliance with Title 10, Code of Federal Regulations (C.F.R.), Part 835, Occupational Radiation Protection dose limits and as low as reasonably achievable (ALARA) process requirements. In addition, the report provides data to DOE organizations responsible for developing policies for protection of individuals from the adverse health effects of radiation. The report provides a summary and an analysis of occupational radiation exposure information from the monitoring of individuals involved in DOE activities. Over the past 5-year period, the occupational radiation exposure information is analyzed in terms of aggregate data, dose to individuals, and dose by site. As an indicator of the overall amount of radiation dose received during the conduct of operations at DOE, the report includes information on collective total effective dose (TED). The TED is comprised of the effective dose (ED) from external sources, which includes neutron and photon radiation, and the internal committed effective dose (CED), which results from the intake of radioactive material into the body. The collective ED from photon exposure decreased by 23% between 2011 and 2012, while the neutron dose increased by 5%. The internal dose components of the collective TED decreased by 7%. Over the past 5-year period, 99.99% of the individuals receiving measurable TED have received doses below the 2 roentgen equivalent in man (rems) (20 millisievert [mSv]) TED administrative control level (ACL), which is well below the DOE regulatory limit of 5 rems (50 mSv) TED annually. The occupational radiation exposure records show that in 2012, DOE facilities continued to comply with DOE dose limits and ACLs and worked to minimize exposure to individuals. The DOE collective TED decreased 17.1% from 2011 to 2012. The collective TED decreased at three of the five sites with the largest collective TED. u Idaho Site – Collective dose reductions were achieved as a result of continuing improvements at the Advanced Mixed Waste Treatment Project (AMWTP) through the planning of drum movements that reduced the number of times a container is handled; placement of waste containers that created highradiation areas in a centralized location; and increased worker awareness of high-dose rate areas. In addition, Idaho had the largest decrease in the total number of workers with measurable TED (1,143 fewer workers). u Hanford Site (Hanford) – An overall reduction of decontamination and decommissioning (D&D) activities at the Plutonium Finishing Plant (PFP) and Transuranic (TRU) retrieval activities resulted in collective dose reductions. u Savannah River Site (SRS) – Reductions were achieved through ALARA initiatives employed site wide. The Solid Waste Management Facility used extended specialty tools, cameras and lead shield walls to facilitate removal of drums. These tools and techniques reduce exposure time through improved efficiency, increase distance from the source of radiation by remote monitoring, shield the workers to lower the dose rate, and reduce the potential for contamination and release of material through repacking of waste. Overall, from 2011 to 2012, there was a 19% decrease in the number of workers with measurable dose. Furthermore, due to a slight decrease in both the DOE workforce (7%) and monitored workers (10%), the ratio of workers with measurable doses to monitored workers decreased to 13%. Another primary indicator of the level of radiation exposure covered in this report is the average measurable dose, which normalizes the collective dose over the population of workers who actually received a measurable dose. The average measurable TED increased by 3% from 2011 to 2012. Additional analyses show that the dose distribution in 2012 was similar to the distribution in 2011. In 2012, 13% of the monitored workers received a measurable TED and the average measurable TED, 0.069 rem, was less than 2% of the DOE limit. From 2011 to 2012, the collective TED and the number of individuals with measurable TED decreased 17.1% and 19%, respectively. These decreases were mainly due to an overall reduction of D&D activities at the PFP and TRU retrieval activities at Hanford; a 78% decrease in the number of targeted waste drums that were processed at the Idaho Site’s Accelerated Retrieval Project (ARP) from 5,566 drums in 2011 to a total of 1,211 drums processed in 2012; and ALARA initiatives employed site wide at SRS. In addition, the decreases were the result of decreased American Recovery and Reinvestment Act (ARRA) activities and continuing D&D, particularly at the DOE sites that comprise the majority of DOE collective dose. Over the past 5 years, the size of the monitored workforce has remained at a fairly stable level (within 12%), while the collective dose has varied up to 37%. No reported doses exceeded the DOE occupational limit of 5 rems TED in 2012 and no reported doses exceeded the DOE ACL of 2 rems TED.

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

    DOE Patents [OSTI]

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

    1996-07-23

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

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

    DOE Patents [OSTI]

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

    1996-01-01

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

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

    DOE Patents [OSTI]

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

    1993-01-01

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

  2. Current-level triggered plasma-opening switch

    DOE Patents [OSTI]

    Mendel, Clifford W. (Albuquerque, NM)

    1989-01-01

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

  3. Current-level triggered plasma-opening switch

    DOE Patents [OSTI]

    Mendel, C.W.

    1987-06-29

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

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

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

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

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

    Office of Scientific and Technical Information (OSTI)

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

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

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

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

  7. Electrocaloric devices based on thini-film heat switches

    SciTech Connect (OSTI)

    Epstein, Richard I; Malloy, Kevin J

    2009-01-01

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

  8. Multi-gap high impedance plasma opening switch

    DOE Patents [OSTI]

    Mason, R.J.

    1996-10-22

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

  9. Multi-gap high impedance plasma opening switch

    DOE Patents [OSTI]

    Mason, Rodney J.

    1996-01-01

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

  10. Commute Mode Switching Impact Tool | Department of Energy

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

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

  11. Employee Job Task Analysis (EJTA) - HPMC Occupational Health Services

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

    Occupational Health Services > Employee Job Task Analysis (EJTA) Occupational Health Services Behavioral Health Services Beryllium Beryllium-Associated Worker Registry Emergency Preparedness Employee Job Task Analysis (EJTA) Environmental Management System (EMS) Epidemiology/Health Data Analysis Human Reliability Program (HRP) Industrial Rehabilitation & Ergonomics Infection Control & Immunizations Influenza Immunization Program Medical Exam Scheduling Medical Exams Return to Work

  12. Energy Employees Occupational Illness Compensation Program | The Ames

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

    Laboratory Energy Employees Occupational Illness Compensation Program The following links provide information regarding the DOE Former Worker Program and the Energy Employees Occupational Illness Compensation Program DOE Former Worker Medical Screening Program Ames Laboratory Former Worker Program U.S. Department of Labor EEOICP Website

  13. Security Plan for the Energy Employees Occupational Illness Compensation Program

    Energy Savers [EERE]

    OFFICE OF HEALTH, SAFETY AND SECURITY SECURITY PLAN FOR THE ENERGY EMPLOYEES OCCUPATIONAL ILLNESS COMPENSATION PROGRAM S January 23, 2009 ______________________________________ __________ Glenn S. Podonsky Date Chief Health, Safety and Security Officer Office of Health, Safety and Security HSS Security Plan for EEOICPA January 2009 Security Plan for the Energy Employees Occupational Illness Compensation Program CONTENTS I. Background

  14. DNA-mediated excitonic upconversion FRET switching

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

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

    2015-11-17

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

  15. DNA-mediated excitonic upconversion FRET switching

    SciTech Connect (OSTI)

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

    2015-11-17

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

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

    DOE Patents [OSTI]

    Dyer, George R. (Norris, TN)

    1986-01-01

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

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

    DOE Patents [OSTI]

    Dyer, G.R.

    1983-11-29

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

  18. All fiber passively Q-switched laser

    DOE Patents [OSTI]

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

    2015-05-12

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

  19. Permanent-magnet switched-flux machine

    DOE Patents [OSTI]

    Trzynadlowski, Andrzej M.; Qin, Ling

    2012-02-21

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

  20. High voltage photo switch package module

    DOE Patents [OSTI]

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

    2014-02-18

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

  1. Path planning during combustion mode switch

    DOE Patents [OSTI]

    Jiang, Li; Ravi, Nikhil

    2015-12-29

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

  2. Eddy-current-damped microelectromechanical switch

    DOE Patents [OSTI]

    Christenson, Todd R.; Polosky, Marc A.

    2009-12-15

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

  3. Eddy-current-damped microelectromechanical switch

    DOE Patents [OSTI]

    Christenson, Todd R.; Polosky, Marc A.

    2007-10-30

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

  4. Permanent-magnet switched-flux machine

    DOE Patents [OSTI]

    Trzynadlowski, Andrzej M.; Qin, Ling

    2010-01-12

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

  5. Permanent-magnet switched-flux machine

    DOE Patents [OSTI]

    Trzynadlowski, Andrzej M.; Qin, Ling

    2011-06-14

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

  6. Semiconductor switch geometry with electric field shaping

    DOE Patents [OSTI]

    Booth, R.; Pocha, M.D.

    1994-08-23

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

  7. Semiconductor switch geometry with electric field shaping

    DOE Patents [OSTI]

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

    1994-01-01

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

  8. DOE Awards Hanford Site Occupational Medical Services Contract | Department

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

    of Energy Hanford Site Occupational Medical Services Contract DOE Awards Hanford Site Occupational Medical Services Contract June 8, 2012 - 12:00pm Addthis Media Contact Cameron Hardy 509-308-4947 Cameron.hardy@rl.gov Cincinnati - The U.S. Department of Energy (DOE) announced today that HPM Corporation, of Kennewick, Washington has been awarded an estimated $99 million contract to provide Occupational Medical Services at the DOE Hanford Site. HPM is a certified minority-owned, women-owned

  9. 2006 Annual DOE Occupational Radiation Exposure Report

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

    * S H I E L D * A L A R A * N E U T R O N * AEDE * E L E C T R O N * T E D E * I N T E R N A L * C E D E * G A M M A * B E T A * S H I E L D * A L A R A * N E U T R ON * AED E * E L E C T R O N * T E D E * I N T E R N A L * C E D E * G A M M A * B E http://www.hss.energy.gov DOE OCCUPATIONAL RADIATION EXPOSURE 2006 Report D E P A R T M E N T O F E N E R G Y U N I T E D S T A T ES O F A M E R I C A This report has been reproduced directly from the best available copy. Available to DOE and DOE

  10. DOE Occupational Radiation Exposure, 1998 Report

    Office of Environmental Management (EM)

    OCCUPATIONAL RADIATION EXPOSURE D E P A R T M E N T O F E N E R G Y U N I T E D S T A T E S O F A M E R I C A DOE/EH-0608 E T A * S H I E L D * A L A R A * N E U T R O N * AEDE * E L E C T R O N * T E D E * I N T E R N A L * C E D E * G A M M A * B E T A * S H I E L D * A L A R A * N E U T R ON * AED E * E L E C T R O N * T E D E * I N T E R N A L * C E D E * G A M M A * B E 1998 Report http://rems.eh.doe.gov This report has been reproduced directly from the best available copy. Available to DOE

  11. Operating Experience Level 3, DOE Occupational Radiation Exposures for 2013

    Broader source: Energy.gov [DOE]

    This Operating Experience Level 3 (OE-3) document provides an overview summary of radiation doses from occupational exposures at the Department of Energy (DOE), including the National Nuclear Security Administration for the year 2013.

  12. NAC 408.429 - Applicants for Occupancy Permits | Open Energy...

    Open Energy Info (EERE)

    search OpenEI Reference LibraryAdd to library Legal Document- RegulationRegulation: NAC 408.429 - Applicants for Occupancy PermitsLegal Abstract This regulation governs...

  13. Federal Employee Occupational Safety And Health (FEOSH) Program...

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

    Congress established Public Law 91-596, The Occupational Safety and Health Act of 1970 (OSH Act) "to ensure so far as possible every working man and woman in the Nation safe and ...

  14. DOE occupational radiation exposure. Report 1992--1994

    SciTech Connect (OSTI)

    1997-05-01

    The DOE Occupational Radiation Exposure Report, 1992-1994 reports occupational radiation exposures incurred by individuals at US Department of Energy (DOE) facilities from 1992 through 1994. This report includes occupational radiation exposure information for all DOE employees, contractors, subcontractors, and visitors. This information is analyzed and trended over time to provide a measure of the DOE`s performance in protecting its workers from radiation. Occupational radiation exposure at DOE has been decreasing over the past 5 years. In particular, doses in the higher dose ranges are decreasing, including the number of doses in excess of the DOE limits and doses in excess of the 2 rem Administrative Control Level (ACL). This is an indication of greater attention being given to protecting these individuals from radiation in the workplace.

  15. Code of Federal Regulations Occupational Radiation Protection; Final Rule

    Broader source: Energy.gov [DOE]

    The Department of Energy (DOE) is amending its primary standards for occupational radiation protection. This final rule is the culmination of a systematic analysis to identify the elements of a...

  16. Reduced Switching Frequency Active Harmonic Elimination for Multilevel Converters

    SciTech Connect (OSTI)

    Du, Zhong; Tolbert, Leon M; Chiasson, John N; Ozpineci, Burak

    2008-01-01

    This paper presents a reduced switching-frequency active-harmonic-elimination method (RAHEM) to eliminate any number of specific order harmonics of multilevel converters. First, resultant theory is applied to transcendental equations to eliminate low-order harmonics and to determine switching angles for a fundamental frequency-switching scheme. Next, based on the number of harmonics to be eliminated, Newton climbing method is applied to transcendental equations to eliminate high-order harmonics and to determine switching angles for the fundamental frequency-switching scheme. Third, the magnitudes and phases of the residual lower order harmonics are computed, generated, and subtracted from the original voltage waveform to eliminate these low-order harmonics. Compared to the active-harmonic-elimination method (AHEM), which generates square waves to cancel high-order harmonics, RAHEM has lower switching frequency. The simulation results show that the method can effectively eliminate all the specific harmonics, and a low total harmonic distortion (THD) near sine wave is produced. An experimental 11-level H-bridge multilevel converter with a field-programmable gate-array controller is employed to experimentally validate the method. The experimental results show that RAHEM does effectively eliminate any number of specific harmonics, and the output voltage waveform has low switching frequency and low THD.

  17. Reporting Occupational Radiation Exposure Data | Department of Energy

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

    Reporting Occupational Radiation Exposure Data Reporting Occupational Radiation Exposure Data IMPORTANT NOTICE: Due to increasing security concerns for the protection of Personnally Identifiable Information (PII), AU-23 has issued a policy statement regarding the submission of radiation exposure records to REMS. This policy should be implemented immediately by all organizations reporting radiation exposure records to REMS in accordance with the REMS Reporting Guide. DOE sites are required to

  18. Energy Employees Occupational Illness Compensation Program - Hanford Site

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

    Energy Employees Occupational Illness Compensation About Us About Hanford Cleanup Hanford History Hanford Site Wide Programs Contact Us Energy Employees Occupational Illness Compensation Program Email Email Page | Print Print Page |Text Increase Font Size Decrease Font Size EEOICPA Logo During the period of the Cold War, thousands of workers were employed in the nation's atomic weapons programs. The work was dangerous and consequently many workers may have been exposed to radioactive and toxic

  19. DOE Issues Draft Request for Proposals for Hanford Site Occupational

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

    Medical Services - Agency Solicits Input from Industry, Stakeholders, and Workforce | Department of Energy Draft Request for Proposals for Hanford Site Occupational Medical Services - Agency Solicits Input from Industry, Stakeholders, and Workforce DOE Issues Draft Request for Proposals for Hanford Site Occupational Medical Services - Agency Solicits Input from Industry, Stakeholders, and Workforce July 19, 2011 - 12:00pm Addthis Media Contact Geoff Tyree, DOE Geoffrey.Tyree@rl..doe.gov

  20. Capacitive microelectromechanical switches with dynamic soft-landing

    DOE Patents [OSTI]

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

    2015-10-13

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

  1. Spintronic switches for ultra low energy global interconnects

    SciTech Connect (OSTI)

    Sharad, Mrigank Roy, Kaushik

    2014-05-07

    We present ultra-low energy interconnect design using nano-scale spin-torque (ST) switches for global data-links. Emerging spin-torque phenomena can lead to ultra-low-voltage, high-speed current-mode magnetic-switches. ST-switches can simultaneously provide large trans-impedance gain by employing magnetic tunnel junctions, to convert current-mode signals into large-swing voltage levels. Such device-characteristics can be used in the design of energy-efficient current-mode global interconnects.

  2. Photo-induced micro-mechanical optical switch

    DOE Patents [OSTI]

    Rajic, Slobodan (Knoxville, TN); Datskos, Panagiotis George (Knoxville, TN); Egert, Charles M. (late of Oak Ridge, TN)

    2002-01-01

    An optical switch is formed by introducing light lengthwise to a microcantilever waveguide directed toward a second waveguide. The microcantilever is caused to bend by light emitted from a laser diode orthogonal to the microcantilever and at an energy above the band gap, which induces stress as a result of the generation of free carriers. The bending of the waveguide directs the carrier frequency light to a second receptor waveguide or to a non-responsive surface. The switch may be combined in an array to perform multiple switching functions rapidly and at low energy losses.

  3. Occupational Safety and Health Administration and Department of Energy Voluntary Protection Program MOU

    Broader source: Energy.gov [DOE]

    Occupational Safety and Health Administration and Department of Energy Voluntary Protection Program MOU

  4. Electrical Breakdown Physics in Photoconductive Semiconductor Switches (PCSS).

    SciTech Connect (OSTI)

    Mar, Alan; Zutavern, Fred J.; Vawter, Gregory A.; Hjalmarson, Harold P.; Gallegos, Richard Joseph; Bigman, Verle Howard

    2016-01-01

    Advanced switching devices with long lifetime will be critical components for Linear Transformer Drivers (LTDs) in next-generation accelerators. LTD designs employ high switch counts. With current gas switch technology at %7E10e3 shot life, a potential game-changer would be the development of a reliable low-impedance (%3C35nh) optically-triggered compact solid-state switch capable of switching 200kV and 50kA with 10e5 shotlife or better. Other applications of this technology, are pulse shaping programmable systems for dynamic material studies (Z-next, Genesis), efficient pulsed power systems for biofuel feedstock, short pulse (10 ns) accelerator designs for the Defense Threat Reduction Agency (DTRA), and sprytron replacements in NW firing sets. This LDRD project has succeeded in developing new optically-triggered photoconductive semiconductor switch (PCSS) designs that show great promise for scaling to modules capable of 200kV (DC) and 5kA current that can be stacked in parallel to achieve 100's of kA with 10e5 shot lifetime. . Executive Summary Advanced switching devices with long lifetime will be critical components for Linear Transformer Drivers (LTDs) in next-generation accelerators. LTD designs employ high switch counts. With current gas switch technology at %7E10e3 shot life, a potential game-changer would be the development of a reliable low-impedance (%3C35nh) optically-triggered compact solid-state switch capable of switching 200kV and 50kA with 10e5 shotlife or better. Other applications of this technology, are pulse shaping programmable systems for dynamic material studies (Z-next, Genesis), efficient pulsed power systems for biofuel feedstock, short pulse (10 ns) accelerator designs for the Defense Threat Reduction Agency (DTRA), and sprytron replacements in NW firing sets. This LDRD project has succeeded in developing new optically-triggered photoconductive semiconductor switch (PCSS) designs that show great promise for scaling to modules capable of 200kV (DC) and 5kA current that can be stacked in parallel to achieve 100's of kA with 10e5 shot lifetime. The new vertical switch design configuration generates parallel filaments in the bulk GaAs (as opposed to just beneath the surface as in previous designs) to achieve breakdown fields close to the maximum for the bulk GaAs while operating in air, and with 2-D scalability of the number of current-sharing filaments. This design also may be highly compatible with 2-D VCSEL arrays for optical triggering. The demonstration of this design in this LDRD utilized standard thickness wafers to trigger 0.4kA at 35kV/cm (limited by 0.6mm wafer thickness), tested to 1e5 shots with no detectable degradation of switch performance. Higher fields, total current, and switching voltages would be achievable with thicker GaAs wafers. Another important application pursued in this LDRD is the use of PCSS for trigger generator applications. Conventional in-plane PCSS have achieved triggering of a 100kV sparkgap (Kinetech-type) switch of the type similar to switches being considered for accelerator upgrades. The trigger is also being developed for pulsed power for HPM applications that require miniaturization and robust performance in noisy compact environments. This has spawned new programs for developing this technology, including an STTR for VCSEL trigger laser integration, also pursuing other follow-on applications.

  5. Spark gap device for precise switching

    DOE Patents [OSTI]

    Boettcher, G.E.

    1984-10-02

    A spark gap device for precise switching of an energy storage capacitor into an exploding bridge wire load is disclosed. Niobium electrodes having a melting point of 2,415 degrees centigrade are spaced apart by an insulating cylinder to define a spark gap. The electrodes are supported by conductive end caps which, together with the insulating cylinder, form a hermetically sealed chamber filled with an inert, ionizable gas, such as pure xenon. A quantity of solid radioactive carbon-14 within the chamber adjacent the spark gap serves as a radiation stabilizer. The sides of the electrodes and the inner wall of the insulating cylinder are spaced apart a sufficient distance to prevent unwanted breakdown initiation. A conductive sleeve may envelop the outside of the insulating member from the midpoint of the spark gap to the cap adjacent the cathode. The outer metallic surfaces of the device may be coated with a hydrogen-impermeable coating to lengthen the shelf life and operating life of the device. The device breaks down at about 1,700 volts for input voltage rates up to 570 volts/millisecond and allows peak discharge currents of up to 3,000 amperes from a 0.3 microfarad energy storage capacitor for more than 1,000 operations. 3 figs.

  6. Spark gap device for precise switching

    DOE Patents [OSTI]

    Boettcher, Gordon E. (Albuquerque, NM)

    1984-01-01

    A spark gap device for precise switching of an energy storage capacitor into an exploding bridge wire load is disclosed. Niobium electrodes having a melting point of 2,415 degrees centrigrade are spaced apart by an insulating cylinder to define a spark gap. The electrodes are supported by conductive end caps which, together with the insulating cylinder, form a hermetically sealed chamber filled with an inert, ionizable gas, such as pure xenon. A quantity of solid radioactive carbon-14 within the chamber adjacent the spark gap serves as a radiation stabilizer. The sides of the electrodes and the inner wall of the insulating cylinder are spaced apart a sufficient distance to prevent unwanted breakdown initiation. A conductive sleeve may envelop the outside of the insulating member from the midpoint of the spark gap to the cap adjacent the cathode. The outer metallic surfaces of the device may be coated with a hydrogen-impermeable coating to lengthen the shelf life and operating life of the device. The device breaks down at about 1,700 volts for input voltage rates up to 570 volts/millisecond and allows peak discharge currents of up to 3,000 amperes from a 0.3 microfarad energy storage capacitor for more than 1,000 operations.

  7. Electro-mechanical heat switch for cryogenic applications

    DOE Patents [OSTI]

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

    2003-01-01

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

  8. Switching behaviors of graphene-boron nitride nanotube heterojunctions

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

    Parashar, Vyom; Durand, Corentin P.; Hao, Boyi; Amorim, Rodrigo G.; Pandey, Ravindra; Tiwari, Bishnu; Zhang, Dongyan; Liu, Yang; Li, An -Ping; Yap, Yoke Khin

    2015-07-20

    High electron mobility of graphene has enabled their application in high-frequency analogue devices but their gapless nature has hindered their use in digital switches. In contrast, the structural analogous, h-BN sheets and BN nanotubes (BNNTs) are wide band gap insulators. Here we show that the growth of electrically insulating BNNTs on graphene can enable the use of graphene as effective digital switches. These graphene-BNNT heterojunctions were characterized at room temperature by four-probe scanning tunneling microscopy (4-probe STM) under real-time monitoring of scanning electron microscopy (SEM). A switching ratio as high as 105 at a turn-on voltage as low as 0.5more » V were recorded. Simulation by density functional theory (DFT) suggests that mismatch of the density of states (DOS) is responsible for these novel switching behaviors.« less

  9. Get Current: Switch on Clean Energy Activity Book

    SciTech Connect (OSTI)

    2014-06-01

    Switching on clean energy technologies means strengthening the economy while protecting the environment. This activity book for all ages promotes energy awareness, with facts on different types of energy and a variety of puzzles in an energy theme.

  10. Switching behaviors of graphene-boron nitride nanotube heterojunctions

    SciTech Connect (OSTI)

    Parashar, Vyom; Durand, Corentin P.; Hao, Boyi; Amorim, Rodrigo G.; Pandey, Ravindra; Tiwari, Bishnu; Zhang, Dongyan; Liu, Yang; Li, An -Ping; Yap, Yoke Khin

    2015-07-20

    High electron mobility of graphene has enabled their application in high-frequency analogue devices but their gapless nature has hindered their use in digital switches. In contrast, the structural analogous, h-BN sheets and BN nanotubes (BNNTs) are wide band gap insulators. Here we show that the growth of electrically insulating BNNTs on graphene can enable the use of graphene as effective digital switches. These graphene-BNNT heterojunctions were characterized at room temperature by four-probe scanning tunneling microscopy (4-probe STM) under real-time monitoring of scanning electron microscopy (SEM). A switching ratio as high as 105 at a turn-on voltage as low as 0.5 V were recorded. Simulation by density functional theory (DFT) suggests that mismatch of the density of states (DOS) is responsible for these novel switching behaviors.

  11. All-optical switching in optically induced nonlinear waveguide couplers

    SciTech Connect (OSTI)

    Diebel, Falko Boguslawski, Martin; Rose, Patrick; Denz, Cornelia; Leykam, Daniel; Desyatnikov, Anton S.

    2014-06-30

    We experimentally demonstrate all-optical vortex switching in nonlinear coupled waveguide arrays optically induced in photorefractive media. Our technique is based on multiplexing of nondiffracting Bessel beams to induce various types of waveguide configurations. Using double- and quadruple-well potentials, we demonstrate precise control over the coupling strength between waveguides, the linear and nonlinear dynamics and symmetry-breaking bifurcations of guided light, and a power-controlled optical vortex switch.

  12. New Mathematical Method Reveals Where Genes Switch On or Off

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

    New Mathematical Method Reveals Where Genes Switch On or Off New Mathematical Method Reveals Where Genes Switch On or Off "Compressed sensing" determines atomic-level energy potentials with accuracy approaching experimental measurement February 22, 2012 John Hules, JAHules@lbl.gov, +1 510 486 6008 Figure 1. Helix-turn-helix (HTH) proteins are the most widely distributed family of DNA-binding proteins, occurring in all biological kingdoms. This image shows a lambda repressor HTH

  13. Multiprocessor switch with selective pairing (Patent) | SciTech Connect

    Office of Scientific and Technical Information (OSTI)

    Multiprocessor switch with selective pairing Citation Details In-Document Search Title: Multiprocessor switch with selective pairing 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

  14. Guest Molecule Induced Switching of Electrical Conduction in a

    Office of Scientific and Technical Information (OSTI)

    Metal-Organic Framework. (Journal Article) | SciTech Connect Guest Molecule Induced Switching of Electrical Conduction in a Metal-Organic Framework. Citation Details In-Document Search Title: Guest Molecule Induced Switching of Electrical Conduction in a Metal-Organic Framework. Authors: Stavila, Vitalie ; Talin, Albert Alec ; Allendorf, Mark D. ; Foster, Michael E. ; Centrone, Andrea ; Haney, Paul ; Kinney, R. Adam ; Szalai, Veronika ; Yook, Heayoung ; Thurston, Bryce ; Buzmetov, Dmitry

  15. Length Scale of Leidenfrost Ratchet Switches Droplet Directionality

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect Length Scale of Leidenfrost Ratchet Switches Droplet Directionality Citation Details In-Document Search Title: Length Scale of Leidenfrost Ratchet Switches Droplet Directionality Arrays of tilted pillars with characteristic heights spanning from hundreds of nanometers to tens of micrometers were created using wafer level processing and used as Leidenfrost ratchets to control droplet directionality. Dynamic Leidenfrost droplets on the ratchets with

  16. Emerging Resistive Switching Memory Technologies: Overview and Current

    Office of Scientific and Technical Information (OSTI)

    Status. (Conference) | SciTech Connect Emerging Resistive Switching Memory Technologies: Overview and Current Status. Citation Details In-Document Search Title: Emerging Resistive Switching Memory Technologies: Overview and Current Status. Abstract not provided. Authors: Marinella, Matthew Publication Date: 2014-05-01 OSTI Identifier: 1147687 Report Number(s): SAND2014-4459C 521502 DOE Contract Number: DE-AC04-94AL85000 Resource Type: Conference Resource Relation: Conference: ISCAS 2014 held

  17. Flipping the switch on magnetism in strontium titanate

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

    Flipping the switch on magnetism in strontium titanate Flipping the switch on magnetism in strontium titanate Researchers have found a way to magnetize this material using light, an effect that persists for hours at a time. March 27, 2014 Los Alamos postdoctoral fellow William Rice holds a crystal of strontium titanate up to the light. This crystal, previously thought to be nonmagnetic, turns out to have surprising magnetic features when treated with special "circularly polarized"

  18. Modeling Combustion Control for High Power Diesel Mode Switching |

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

    Department of Energy 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 Engine-Efficiency and Emissions Research (DEER) Conference in Detroit, MI, September 27-30, 2010. PDF icon p-20_banerjee.pdf More Documents & Publications Diesel Injection Shear-Stress Advanced Nozzle (DISSAN) In-Cylinder Mechanisms of PCI Heat-Release Rate Control by Fuel Reactivity

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

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | DOE PAGES Resistive switching phenomena: A review of statistical physics approaches This content will become publicly available on August 31, 2016 « Prev Next » Title: Resistive switching phenomena: A review of statistical physics approaches Authors: Lee, Jae Sung [1] ; Lee, Shinbuhm [2] ; Noh, Tae Won [3] + Show Author Affiliations School of Physics, Korea Institute for Advanced Study, Seoul 130-722, South Korea Materials Science and Technology Division, Oak Ridge

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

    Office of Scientific and Technical Information (OSTI)

    (Journal Article) | SciTech Connect SciTech Connect Search Results Journal Article: Sub-picosecond optical switching with a negative index metamaterial Citation Details In-Document Search Title: Sub-picosecond optical switching with a negative index metamaterial Development of all-optical signal processing, eliminating the performance and cost penalties of optical-electrical-optical conversion, is important for continu,ing advances in Terabits/sec (Tb/s) communications.' Optical

  1. Understanding and using configurational changes in resistive switching

    Office of Scientific and Technical Information (OSTI)

    filaments. (Conference) | SciTech Connect Understanding and using configurational changes in resistive switching filaments. Citation Details In-Document Search Title: Understanding and using configurational changes in resistive switching filaments. Abstract not provided. Authors: Mickel, Patrick R. ; Lohn, Andrew ; James, Conrad D. ; Marinella, Matthew Publication Date: 2014-02-01 OSTI Identifier: 1140919 Report Number(s): SAND2014-1502C 504910 DOE Contract Number: DE-AC04-94AL85000 Resource

  2. Electronically commutated serial-parallel switching for motor windings

    DOE Patents [OSTI]

    Hsu, John S. (Oak Ridge, TN)

    2012-03-27

    A method and a circuit for controlling an ac machine comprises controlling a full bridge network of commutation switches which are connected between a multiphase voltage source and the phase windings to switch the phase windings between a parallel connection and a series connection while providing commutation discharge paths for electrical current resulting from inductance in the phase windings. This provides extra torque for starting a vehicle from lower battery current.

  3. Ventilation and occupant behavior in two apartment buildings

    SciTech Connect (OSTI)

    Diamond, R.C.; Modera, M.P.; Feustel, H.E.

    1986-10-01

    In this paper we approach the subject of ventilation and occupant behavior in multifamily buildings by asking three questions: (1) why and how do occupants interact with ventilation in an apartment building, (2) how does the physical environment (i.e., building characteristics and climate) affect the ventilation in an apartment, and (3) what methods can be used to answer the first two questions. To investigate these and related questions, two apartment buildings in Chicago were monitored during the 1985-1986 heating season. In addition to collecting data on energy consumption, outdoor temperature, wind speed, and indoor apartment temperatures, we conducted diagnostic measurements and occupant surveys in both buildings. The diagnostic tests measured leakage areas of the individual apartments, both through the exterior envelope and to other apartments. The measured leakage areas are used in conjunction with a multizone air flow model to simulate infiltration and internal air flows under different weather conditions. The occupants were questioned about their attitudes and behavior regarding the comfort, air quality, ventilation, and energy use of their apartments. This paper describes each of the research methods utilized, the results of these efforts, and conclusions that can be drawn about ventilation-occupant interactions in these apartment buildings. We found that there was minimal window opening during the winter, widespread use of auxiliary heating to control thermal comfort, and that the simulations show little outside air entry in the top-floor apartments during periods of low wind speeds. The major conclusion of this work is that a multi-disciplinary approach is required to understand or predict occupant-ventilation interactions. Such an approach must take into account the physical characteristics of the building and the climate, as well as the preferences and available options of the occupants.

  4. Efficient Switches for Solar Power Conversion: Four Quadrant GaN Switch Enabled Three Phase Grid-Tied Microinverters

    SciTech Connect (OSTI)

    2012-02-13

    Solar ADEPT Project: Transphorm is developing power switches for new types of inverters that improve the efficiency and reliability of converting energy from solar panels into useable electricity for the grid. Transistors act as fast switches and control the electrical energy that flows in an electrical circuit. Turning a transistor off opens the circuit and stops the flow of electrical current; turning it on closes the circuit and allows electrical current to flow. In this way a transistor can be used to convert DC from a solar panel into AC for use in a home. Transphorm’s transistors will enable a single semiconductor device to switch electrical currents at high-voltage in both directions—making the inverter more compact and reliable. Transphorm is using Gallium Nitride (GaN) as a semiconductor material in its transistors instead of silicon, which is used in most conventional transistors, because GaN transistors have lower losses at higher voltages and switching frequencies.

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

    DOE Patents [OSTI]

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

    2007-02-06

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

  6. Alternative Fuels Data Center: Cities Make the Clean Switch to Natural Gas

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

    Cities Make the Clean Switch to Natural Gas to someone by E-mail Share Alternative Fuels Data Center: Cities Make the Clean Switch to Natural Gas on Facebook Tweet about Alternative Fuels Data Center: Cities Make the Clean Switch to Natural Gas on Twitter Bookmark Alternative Fuels Data Center: Cities Make the Clean Switch to Natural Gas on Google Bookmark Alternative Fuels Data Center: Cities Make the Clean Switch to Natural Gas on Delicious Rank Alternative Fuels Data Center: Cities Make the

  7. Delocalization and occupancy effects of 5f orbitals in plutonium

    Office of Scientific and Technical Information (OSTI)

    intermetallics using L3-edge resonant X-ray emission spectroscopy (Journal Article) | SciTech Connect Journal Article: Delocalization and occupancy effects of 5f orbitals in plutonium intermetallics using L3-edge resonant X-ray emission spectroscopy Citation Details In-Document Search Title: Delocalization and occupancy effects of 5f orbitals in plutonium intermetallics using L3-edge resonant X-ray emission spectroscopy Although actinide (An) L3 -edge X-ray absorption near-edge structure

  8. 29 CFR 1910 Occupational Safety and Health Standards

    National Nuclear Security Administration (NNSA)

    7 Occupational Safety and Health Admin., Labor Pt. 1910 (d) Location of sample Cooperative Agreement. A sample Agreement is available for inspection at all Regional Offices of the Occupational Safety and Health Administration of the U.S. De- partment of Labor. (e) Action upon requests. The State will be notified within a reasonable pe- riod of time of any decision concerning its request for a Cooperative Agree- ment. If a request is denied, the State will be informed in writing of the rea- sons

  9. Ferroelectric opening switches for large-scale pulsed power drivers.

    SciTech Connect (OSTI)

    Brennecka, Geoffrey L.; Rudys, Joseph Matthew; Reed, Kim Warren; Pena, Gary Edward; Tuttle, Bruce Andrew; Glover, Steven Frank

    2009-11-01

    Fast electrical energy storage or Voltage-Driven Technology (VDT) has dominated fast, high-voltage pulsed power systems for the past six decades. Fast magnetic energy storage or Current-Driven Technology (CDT) is characterized by 10,000 X higher energy density than VDT and has a great number of other substantial advantages, but it has all but been neglected for all of these decades. The uniform explanation for neglect of CDT technology is invariably that the industry has never been able to make an effective opening switch, which is essential for the use of CDT. Most approaches to opening switches have involved plasma of one sort or another. On a large scale, gaseous plasmas have been used as a conductor to bridge the switch electrodes that provides an opening function when the current wave front propagates through to the output end of the plasma and fully magnetizes the plasma - this is called a Plasma Opening Switch (POS). Opening can be triggered in a POS using a magnetic field to push the plasma out of the A-K gap - this is called a Magnetically Controlled Plasma Opening Switch (MCPOS). On a small scale, depletion of electron plasmas in semiconductor devices is used to affect opening switch behavior, but these devices are relatively low voltage and low current compared to the hundreds of kilo-volts and tens of kilo-amperes of interest to pulsed power. This work is an investigation into an entirely new approach to opening switch technology that utilizes new materials in new ways. The new materials are Ferroelectrics and using them as an opening switch is a stark contrast to their traditional applications in optics and transducer applications. Emphasis is on use of high performance ferroelectrics with the objective of developing an opening switch that would be suitable for large scale pulsed power applications. Over the course of exploring this new ground, we have discovered new behaviors and properties of these materials that were here to fore unknown. Some of these unexpected discoveries have lead to new research directions to address challenges.

  10. Utilizing zero-sequence switchings for reversible converters

    DOE Patents [OSTI]

    Hsu, John S.; Su, Gui-Jia; Adams, Donald J.; Nagashima, James M.; Stancu, Constantin; Carlson, Douglas S.; Smith, Gregory S.

    2004-12-14

    A method for providing additional dc inputs or outputs (49, 59) from a dc-to-ac inverter (10) for controlling motor loads (60) comprises deriving zero-sequence components (V.sub.ao, V.sub.bo, and V.sub.co) from the inverter (10) through additional circuit branches with power switching devices (23, 44, 46), transforming the voltage between a high voltage and a low voltage using a transformer or motor (42, 50), converting the low voltage between ac and dc using a rectifier (41, 51) or an H-bridge (61), and providing at least one low voltage dc input or output (49, 59). The transformation of the ac voltage may be either single phase or three phase. Where less than a 100% duty cycle is acceptable, a two-phase modulation of the switching signals controlling the inverter (10) reduces switching losses in the inverter (10). A plurality of circuits for carrying out the invention are also disclosed.

  11. Enhancement of Spin-transfer torque switching via resonant tunneling

    SciTech Connect (OSTI)

    Chatterji, Niladri; Tulapurkar, Ashwin A.; Muralidharan, Bhaskaran

    2014-12-08

    We propose the use of resonant tunneling as a route to enhance the spin-transfer torque switching characteristics of magnetic tunnel junctions. The proposed device structure is a resonant tunneling magnetic tunnel junction based on a MgO-semiconductor heterostructure sandwiched between a fixed magnet and a free magnet. Using the non-equilibrium Green's function formalism coupled self consistently with the Landau-Lifshitz-Gilbert-Slonczewski equation, we demonstrate enhanced tunnel magneto-resistance characteristics as well as lower switching voltages in comparison with traditional trilayer devices. Two device designs based on MgO based heterostructures are presented, where the physics of resonant tunneling leads to an enhanced spin transfer torque thereby reducing the critical switching voltage by up to 44%. It is envisioned that the proof-of-concept presented here may lead to practical device designs via rigorous materials and interface studies.

  12. Ferroelectric Switching by the Grounded Scanning Probe Microscopy Tip

    SciTech Connect (OSTI)

    Ievlev, Anton; Morozovska, A. N.; Shur, Vladimir Ya.; Kalinin, Sergei V

    2015-01-01

    The process of polarization reversal by the tip of scanning probe microscope was intensively studied for last two decades. Number of the abnormal switching phenomena was reported by the scientific groups worldwide. In particularly it was experimentally and theoretically shown that slow dynamics of the surface screening controls kinetics of the ferroelectric switching, backswitching and relaxation and presence of the charges carriers on the sample surface and in the sample bulk significantly change polarization reversal dynamics. Here we experimentally demonstrated practical possibility of the history dependent polarization reversal by the grounded SPM tip. This phenomenon was attributed to induction of the slowly dissipating charges into the surface of the grounded tip that enables polarization reversal under the action of the produced electric field. Analytical and numerical electrostatic calculations allow additional insight into nontrivial abnormal switching phenomena reported earlier.

  13. Spark gap switch system with condensable dielectric gas

    DOE Patents [OSTI]

    Thayer, III, William J. (Kent, WA)

    1991-01-01

    A spark gap switch system is disclosed which is capable of operating at a high pulse rate comprising an insulated switch housing having a purging gas entrance port and a gas exit port, a pair of spaced apart electrodes each having one end thereof within the housing and defining a spark gap therebetween, an easily condensable and preferably low molecular weight insulating gas flowing through the switch housing from the housing, a heat exchanger/condenser for condensing the insulating gas after it exits from the housing, a pump for recirculating the condensed insulating gas as a liquid back to the housing, and a heater exchanger/evaporator to vaporize at least a portion of the condensed insulating gas back into a vapor prior to flowing the insulating gas back into the housing.

  14. Carrier Density Modulation in Ge Heterostructure by Ferroelectric Switching

    SciTech Connect (OSTI)

    Ponath, Patrick; Fredrickson, Kurt; Posadas, Agham B.; Ren, Yuan; Vasudevan, Rama K; Okatan, Mahmut Baris; Jesse, Stephen; Aoki, Toshihiro; McCartney, Martha; Smith, David J; Kalinin, Sergei V; Lai, Keji; Demkov, Alexander A.

    2015-01-01

    The development of nonvolatile logic through direct coupling of spontaneous ferroelectric polarization with semiconductor charge carriers is nontrivial, with many issues, including epitaxial ferroelectric growth, demonstration of ferroelectric switching, and measurable semiconductor modulation. Here we report a true ferroelectric field effect carrier density modulation in an underlying Ge(001) substrate by switching of the ferroelectric polarization in the epitaxial c-axis-oriented BaTiO3 (BTO) grown by molecular beam epitaxy (MBE) on Ge. Using density functional theory, we demonstrate that switching of BTO polarization results in a large electric potential change in Ge. Aberration-corrected electron microscopy confirms the interface sharpness, and BTO tetragonality. Electron-energy-loss spectroscopy (EELS) indicates the absence of any low permittivity interlayer at the interface with Ge. Using piezoelectric force microscopy (PFM), we confirm the presence of fully switchable, stable ferroelectric polarization in BTO that appears to be single domain. Using microwave impedance microscopy (MIM), we clearly demonstrate a ferroelectric field effect.

  15. DOE Basic Overview of Occupational Radiation Exposure_2011 pamphlet

    SciTech Connect (OSTI)

    ORAU

    2012-08-08

    This pamphlet focusses on two HSS activities that help ensure radiation exposures are accurately assessed and recorded, namely: 1) the quality and accuracy of occupational radiation exposure monitoring, and 2) the recording, reporting, analysis, and dissemination of the monitoring results. It is intended to provide a short summary of two specific HSS programs that aid in the oversight of radiation protection activities at DOE. The Department of Energy Laboratory Accreditation Program (DOELAP) is in place to ensure that radiation exposure monitoring at all DOE sites is precise and accurate, and conforms to national and international performance and quality assurance standards. The DOE Radiation Exposure Monitoring Systems (REMS) program provides for the collection, analysis, and dissemination of occupational radiation exposure information. The annual REMS report is a valuable tool for managing radiological safety programs and for developing policies to protect individuals from occupational exposure to radiation. In tandem, these programs provide DOE management and workers an assurance that occupational radiation exposures are accurately measured, analyzed, and reported.

  16. CRAD, Occupational Safety & Health- Idaho MF-628 Drum Treatment Facility

    Broader source: Energy.gov [DOE]

    A section of Appendix C to DOE G 226.1-2 "Federal Line Management Oversight of Department of Energy Nuclear Facilities." Consists of Criteria Review and Approach Documents (CRADs) used for a February 2006 Commencement of Operations assessment of the Occupational Safety and Industrial Hygiene programs at the MF-628 Drum Treatment Facility at the Idaho National Laboratory Advanced Mixed Waste Treatment Project.

  17. CRAD, Occupational Safety & Health- Idaho Accelerated Retrieval Project Phase II

    Broader source: Energy.gov [DOE]

    A section of Appendix C to DOE G 226.1-2 "Federal Line Management Oversight of Department of Energy Nuclear Facilities." Consists of Criteria Review and Approach Documents (CRADs) used for a February 2006 Commencement of Operations assessment of the Occupational Safety and Industrial Hygiene Program at the Idaho Accelerated Retrieval Project Phase II.

  18. Fact #613: March 8, 2010 Vehicle Occupancy Rates

    Broader source: Energy.gov [DOE]

    The average number of persons occupying a car is 1.59 and has not changed much since 1995. The largest increases from 1995 to 2009 have been in the occupancy rates for vans – from 2.07 to 2.35 –...

  19. High voltage switch triggered by a laser-photocathode subsystem

    DOE Patents [OSTI]

    Chen, Ping; Lundquist, Martin L.; Yu, David U. L.

    2013-01-08

    A spark gap switch for controlling the output of a high voltage pulse from a high voltage source, for example, a capacitor bank or a pulse forming network, to an external load such as a high gradient electron gun, laser, pulsed power accelerator or wide band radar. The combination of a UV laser and a high vacuum quartz cell, in which a photocathode and an anode are installed, is utilized as triggering devices to switch the spark gap from a non-conducting state to a conducting state with low delay and low jitter.

  20. File:03HIDUseAndOccupancyPermit.pdf | Open Energy Information

    Open Energy Info (EERE)

    3HIDUseAndOccupancyPermit.pdf Jump to: navigation, search File File history File usage Metadata File:03HIDUseAndOccupancyPermit.pdf Size of this preview: 463 599 pixels. Other...

  1. Transparent selective illumination means suitable for use in optically activated electrical switches and optically activated electrical switches constructed using same

    DOE Patents [OSTI]

    Wilcox, R.B.

    1991-09-10

    A planar transparent light conducting means and an improved optically activated electrical switch made using the novel light conducting means are disclosed. The light conducting means further comprise light scattering means on one or more opposite planar surfaces thereof to transmit light from the light conducting means into adjacent media and reflective means on other surfaces of the light conducting means not containing the light scattering means. The optically activated electrical switch comprises at least two stacked photoconductive wafers, each having electrodes formed on both surfaces thereof, and separated by the planar transparent light conducting means. The light scattering means on the light conducting means face surfaces of the wafers not covered by the electrodes to transmit light from the light conducting means into the photoconductive wafers to uniformly illuminate and activate the switch. 11 figures.

  2. Transparent selective illumination means suitable for use in optically activated electrical switches and optically activated electrical switches constructed using same

    DOE Patents [OSTI]

    Wilcox, Russell B. (Oakland, CA)

    1991-01-01

    A planar transparent light conducting means and an improved optically activated electrical switch made using the novel light conducting means are disclosed. The light conducting means further comprise light scattering means on one or more opposite planar surfaces thereof to transmit light from the light conducting means into adjacent media and reflective means on other surfaces of the light conducting means not containing the light scattering means. The optically activated electrical switch comprises at least two stacked photoconductive wafers, each having electrodes formed on both surfaces thereof, and separated by the planar transparent light conducting means. The light scattering means on the light conducting means face surfaces of the wafers not covered by the electrodes to transmit light from the light conducting means into the photoconductive wafers to uniformly illuminate and activate the switch.

  3. On-Line User Survey Form to provide feedback for the DOE Occupational

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

    Radiation Exposure Report | Department of Energy User Survey Form to provide feedback for the DOE Occupational Radiation Exposure Report On-Line User Survey Form to provide feedback for the DOE Occupational Radiation Exposure Report May 30, 2014 Radiation Exposure Monitoring System (REMS) User Feedback Survey. PDF icon On-Line User Survey Form to provide feedback for the DOE Occupational Radiation Exposure Report More Documents & Publications Annual DOE Occupational Radiation Exposure |

  4. Use of Occupancy Sensors in LED Parking Lot and Garage Applications: Early Experiences

    SciTech Connect (OSTI)

    Kinzey, B. R.; Myer, M. A.; Royer, M. P.; Sullivan, G. P.

    2012-10-01

    Final GATEWAY program report on the early experiences of using occupancy sensors in LED parking lot and garage applications.

  5. Energy Savings for Occupancy-Based Control (OBC) of Variable-Air-Volume (VAV) Systems

    SciTech Connect (OSTI)

    Zhang, Jian; Lutes, Robert G.; Liu, Guopeng; Brambley, Michael R.

    2013-01-24

    This study evaluates the savings potential of occupancy based control (OBC) for large office buildings with VAV terminal boxes installed.

  6. Occupational Injury & Illness System (01&15) PIA, Idaho National Laboratory

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

    | Department of Energy Injury & Illness System (01&15) PIA, Idaho National Laboratory Occupational Injury & Illness System (01&15) PIA, Idaho National Laboratory Occupational Injury & Illness System (01&15) PIA, Idaho National Laboratory PDF icon Occupational Injury & Illness System (01&15) PIA, Idaho National Laboratory More Documents & Publications Energy Employees' Occupational Illness Compensation Program Act (EEOICPA) Tracking Database, INL Energy

  7. CFTB 04/22/2010 Revisions to the 2008 Census of Fatal Occupational...

    National Nuclear Security Administration (NNSA)

    maintenance, and repair occupations 345 354 9 6.6 6.7 0.1 Transportation and material moving occupations 1,330 1,376 46 15.5 16.1 0.6 Military occupations 53 57 4 NA...

  8. Optically-initiated silicon carbide high voltage switch

    DOE Patents [OSTI]

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

    2012-02-28

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

  9. Quantum coherent switch utilizing commensurate nanoelectrode and charge density periodicities

    DOE Patents [OSTI]

    Harrison; Neil , Singleton; John , Migliori; Albert

    2008-08-05

    A quantum coherent switch having a substrate formed from a density wave (DW) material capable of having a periodic electron density modulation or spin density modulation, a dielectric layer formed onto a surface of the substrate that is orthogonal to an intrinsic wave vector of the DW material; and structure for applying an external spatially periodic electrostatic potential over the dielectric layer.

  10. Utility External Disconnect Switch: Practical, Legal, and Technical Reasons to Eliminate the Requirement

    Broader source: Energy.gov [DOE]

    This report documents the safe operation of PV systems without a utility external disconnect switch in several large jurisdictions. It includes recommendations for regulators contemplating utility external disconnect switch requirements.

  11. Image-based occupancy sensor - Energy Innovation Portal

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

    036,866 Site Map Printable Version Share this resource About Search Categories (15) Advanced Materials Biomass and Biofuels Building Energy Efficiency Electricity Transmission Energy Analysis Energy Storage Geothermal Hydrogen and Fuel Cell Hydropower, Wave and Tidal Industrial Technologies Solar Photovoltaic Solar Thermal Startup America Vehicles and Fuels Wind Energy Partners (27) Visual Patent Search Success Stories Find More Like This Return to Search Image-based occupancy sensor United

  12. The effects of mobile ATM switches on PNNI peer group operation

    SciTech Connect (OSTI)

    Martinez, L.; Sholander, P.; Tolendino, L.

    1997-04-01

    This contribution discusses why, and how, mobile networks and mobile switches might be discussed during Phase 1 of the WATM standards process. Next, it reviews mobile routers within Mobile IP. That IP mobility architecture may not apply to the proposed mobile ATM switches. Finally, it discusses problems with PNNI peer group formation and operation when mobile ATM switches are present.

  13. Optimization of Occupancy Based Demand Controlled Ventilation in Residences

    SciTech Connect (OSTI)

    Mortensen, Dorthe K.; Walker, Iain S.; Sherman, Max H.

    2011-05-01

    Although it has been used for many years in commercial buildings, the application of demand controlled ventilation in residences is limited. In this study we used occupant exposure to pollutants integrated over time (referred to as 'dose') as the metric to evaluate the effectiveness and air quality implications of demand controlled ventilation in residences. We looked at air quality for two situations. The first is that typically used in ventilation standards: the exposure over a long term. The second is to look at peak exposures that are associated with time variations in ventilation rates and pollutant generation. The pollutant generation had two components: a background rate associated with the building materials and furnishings and a second component related to occupants. The demand controlled ventilation system operated at a low airflow rate when the residence was unoccupied and at a high airflow rate when occupied. We used analytical solutions to the continuity equation to determine the ventilation effectiveness and the long-term chronic dose and peak acute exposure for a representative range of occupancy periods, pollutant generation rates and airflow rates. The results of the study showed that we can optimize the demand controlled airflow rates to reduce the quantity of air used for ventilation without introducing problematic acute conditions.

  14. Occupational Radiation Protection Record-Keeping and Reporting Guide for use with Title 10, Code of Federal Regulations, Part 835, Occupational Radiation Protection

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

    1999-05-20

    This Guide provides an acceptable methodology for establishing and operating an occupational radiation protection record-keeping and reporting program that will comply with U.S. Department of Energy (DOE) requirements specified in Title 10 of the Code of Federal Regulations (CFR), Part 835, Occupational Radiation Protection. Canceled by DOE G 441.1-1B.

  15. Spin-transfer switching of orthogonal spin-valve devices at cryogenic temperatures

    SciTech Connect (OSTI)

    Ye, L. Gopman, D. B.; Rehm, L.; Backes, D.; Wolf, G.; Kent, A. D.; Ohki, T.; Kirichenko, A. F.; Vernik, I. V.; Mukhanov, O. A.

    2014-05-07

    We present the quasi-static and dynamic switching characteristics of orthogonal spin-transfer devices incorporating an out-of-plane magnetized polarizing layer and an in-plane magnetized spin valve device at cryogenic temperatures. Switching at 12?K between parallel and anti-parallel spin-valve states is investigated for slowly varied current as well as for current pulses with durations as short as 200 ps. We demonstrate 100% switching probability with current pulses 0.6?ns in duration. We also present a switching probability diagram that summarizes device switching operation under a variety of pulse durations, amplitudes, and polarities.

  16. Electro-optical switching and memory display device

    DOE Patents [OSTI]

    Skotheim, Terje A. (East Patchogue, NY); O'Grady, William E. (Center Moriches, NY); Linkous, Clovis A. (Stony Brook, NY)

    1986-01-01

    An electro-optical display device having a housing with wall means including one transparent wall and at least one other wall. Counter electrodes are positioned on the transparent wall and display electrodes are positioned on the other wall with both electrodes in electrically conductive relationship with an electrolyte. Circuit means are connected to the display and counter electrodes to apply different predetermined control potentials between them. The display electrodes are covered with a thin electrically conductive polymer film that is characterized according to the invention by having embedded in it pigment molecules as counter ions. The display device is operable to be switched to a plurality of different visual color states at an exceptionally rapid switching rate while each of the color states is characterized by possessing good color intensity and definition.

  17. Electro-optical switching and memory display device

    DOE Patents [OSTI]

    Skotheim, T.A.; O'Grady, W.E.; Linkous, C.A.

    1983-12-29

    An electro-optical display device having a housing with wall means including one transparent wall and at least one other wall. Counter electrodes are positioned on the transparent wall and display electrodes are positioned on the other wall with both electrodes in electrically conductive relationship with an electrolyte. Circuits means are connected to the display and counter electrodes to apply different predetermined control potentials between them. The display electrodes are covered with a thin electrically conductive polymer film that is characterized according to the invention by having embedded in it pigment molecules as counter ions. The display device is operable to be switched to a plurality of different visual color states at an exceptionally rapid switching rate while each of the color states is characterized by possessing good color intensity and definition.

  18. Plasma Switch for High-Power Active Pulse Compressor

    SciTech Connect (OSTI)

    Hirshfield, Jay L.

    2013-11-04

    Results are presented from experiments carried out at the Naval Research Laboratory X-band magnicon facility on a two-channel X-band active RF pulse compressor that employed plasma switches. Experimental evidence is shown to validate the basic goals of the project, which include: simultaneous firing of plasma switches in both channels of the RF circuit, operation of quasi-optical 3-dB hybrid directional coupler coherent superposition of RF compressed pulses from both channels, and operation of the X-band magnicon directly in the RF pulse compressor. For incident 1.2 ?s pulses in the range 0.63 ? 1.35 MW, compressed pulses of peak powers 5.7 ? 11.3 MW were obtained, corresponding to peak power gain ratios of 8.3 ? 9.3. Insufficient bakeout and conditioning of the high-power RF circuit prevented experiments from being conducted at higher RF input power levels.

  19. Combustion mode switching with a turbocharged/supercharged engine

    DOE Patents [OSTI]

    Mond, Alan; Jiang, Li

    2015-09-22

    A method for switching between low- and high-dilution combustion modes in an internal combustion engine having an intake passage with an exhaust-driven turbocharger, a crankshaft-driven positive displacement supercharger downstream of the turbocharger and having variable boost controllable with a supercharger bypass valve, and a throttle valve downstream of the supercharger. The current combustion mode and mass air flow are determined. A switch to the target combustion mode is commanded when an operating condition falls within a range of predetermined operating conditions. A target mass air flow to achieve a target air-fuel ratio corresponding to the current operating condition and the target combustion mode is determined. The degree of opening of the supercharger bypass valve and the throttle valve are controlled to achieve the target mass air flow. The amount of residual exhaust gas is manipulated.

  20. Vacuum-surface flashover switch with cantilever conductors

    DOE Patents [OSTI]

    Caporaso, George J.; Sampayan, Stephen E.; Kirbie, Hugh C.

    2001-01-01

    A dielectric-wall linear accelerator is improved by a high-voltage, fast rise-time switch that includes a pair of electrodes between which are laminated alternating layers of isolated conductors and insulators. A high voltage is placed between the electrodes sufficient to stress the voltage breakdown of the insulator on command. A light trigger, such as a laser, is focused along at least one line along the edge surface of the laminated alternating layers of isolated conductors and insulators extending between the electrodes. The laser is energized to initiate a surface breakdown by a fluence of photons, thus causing the electrical switch to close very promptly. Such insulators and lasers are incorporated in a dielectric wall linear accelerator with Blumlein modules, and phasing is controlled by adjusting the length of fiber optic cables that carry the laser light to the insulator surface.

  1. Device having two optical ports for switching applications

    DOE Patents [OSTI]

    Rosen, Ayre (Cherry Hill, NJ); Stabile, Paul J. (Langehorne, PA)

    1991-09-24

    A two-sided light-activatable semiconductor switch device having an optical port on each side thereof. The semiconductor device may be a p-i-n diode or of bulk intrinsic material. A two ported p-i-n diode, reverse-biased to "off" by a 1.3 kV dc power supply, conducted 192 A when activated by two 1 kW laser diode arrays, one for each optical port.

  2. Reversible Switching from Antiferro- to Ferromagnetic Behavior by

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

    Solvent-Mediated, Thermally-Induced Phase Transitions in a Trimorphic MOF-Based Magnetic Sponge System | Center for Gas SeparationsRelevant to Clean Energy Technologies | Blandine Jerome Reversible Switching from Antiferro- to Ferromagnetic Behavior by Solvent-Mediated, Thermally-Induced Phase Transitions in a Trimorphic MOF-Based Magnetic Sponge System Previous Next List Mario Wriedt, Andrey A. Yakovenko, Gregory J. Halder, Andrey V. Prosvirin, Kim R. Dunbar, and Hong-Cai Zhou, J. Am. Chem.

  3. Microwave pulse compression from a storage cavity with laser-induced switching

    DOE Patents [OSTI]

    Bolton, Paul R. (Menlo Park, CA)

    1992-01-01

    A laser-induced switch and a multiple cavity configuration are disclosed for producing high power microwave pulses. The microwave pulses are well controlled in wavelength and timing, with a quick rise time and a variable shape and power of the pulse. In addition, a method of reducing pre-pulse leakage to a low level is disclosed. Microwave energy is directed coherently to one or more cavities that stores the energy in a single mode, represented as a standing wave pattern. In order to switch the stored microwave energy out of the main cavity and into the branch waveguide, a laser-actuated switch is provided for the cavity. The switch includes a laser, associated optics for delivering the beam into the main cavity, and a switching gas positioned at an antinode in the main cavity. When actuated, the switching gas ionizes, creating a plasma, which becomes reflective to the microwave energy, changing the resonance of the cavity, and as a result the stored microwave energy is abruptly switched out of the cavity. The laser may directly pre-ionize the switching gas, or it may pump an impurity in the switching gas to an energy level which switches when a pre-selected cavity field is attained. Timing of switching the cavities is controlled by varying the pathlength of the actuating laser beam. For example, the pathlengths may be adjusted to output a single pulse of high power, or a series of quick lower power pulses.

  4. Interprocessor bus switching system for simultaneous communication in plural bus parallel processing system

    DOE Patents [OSTI]

    Atac, Robert (Aurora, IL); Fischler, Mark S. (Warrenville, IL); Husby, Donald E. (DeKalb, IL)

    1991-01-01

    A bus switching apparatus and method for multiple processor computer systems comprises a plurality of bus switches interconnected by branch buses. Each processor or other module of the system is connected to a spigot of a bus switch. Each bus switch also serves as part of a backplane of a modular crate hardware package. A processor initiates communication with another processor by identifying that other processor. The bus switch to which the initiating processor is connected identifies and secures, if possible, a path to that other processor, either directly or via one or more other bus switches which operate similarly. If a particular desired path through a given bus switch is not available to be used, an alternate path is considered, identified and secured.

  5. Interprocessor bus switching system for simultaneous communication in plural bus parallel processing system

    DOE Patents [OSTI]

    Atac, R.; Fischler, M.S.; Husby, D.E.

    1991-01-15

    A bus switching apparatus and method for multiple processor computer systems comprises a plurality of bus switches interconnected by branch buses. Each processor or other module of the system is connected to a spigot of a bus switch. Each bus switch also serves as part of a backplane of a modular crate hardware package. A processor initiates communication with another processor by identifying that other processor. The bus switch to which the initiating processor is connected identifies and secures, if possible, a path to that other processor, either directly or via one or more other bus switches which operate similarly. If a particular desired path through a given bus switch is not available to be used, an alternate path is considered, identified and secured. 11 figures.

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

    DOE Patents [OSTI]

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

    2011-05-10

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

  7. Carrier Density Modulation in Ge Heterostructure by Ferroelectric Switching

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

    Ponath, Patrick; Fredrickson, Kurt; Posadas, Agham B.; Ren, Yuan; Vasudevan, Rama K; Okatan, Mahmut Baris; Jesse, Stephen; Aoki, Toshihiro; McCartney, Martha; Smith, David J; et al

    2015-01-01

    The development of nonvolatile logic through direct coupling of spontaneous ferroelectric polarization with semiconductor charge carriers is nontrivial, with many issues, including epitaxial ferroelectric growth, demonstration of ferroelectric switching, and measurable semiconductor modulation. Here we report a true ferroelectric field effect carrier density modulation in an underlying Ge(001) substrate by switching of the ferroelectric polarization in the epitaxial c-axis-oriented BaTiO3 (BTO) grown by molecular beam epitaxy (MBE) on Ge. Using density functional theory, we demonstrate that switching of BTO polarization results in a large electric potential change in Ge. Aberration-corrected electron microscopy confirms the interface sharpness, and BTO tetragonality. Electron-energy-lossmore » spectroscopy (EELS) indicates the absence of any low permittivity interlayer at the interface with Ge. Using piezoelectric force microscopy (PFM), we confirm the presence of fully switchable, stable ferroelectric polarization in BTO that appears to be single domain. Using microwave impedance microscopy (MIM), we clearly demonstrate a ferroelectric field effect.« less

  8. Active high-power RF switch and pulse compression system

    DOE Patents [OSTI]

    Tantawi, Sami G. (San Mateo, CA); Ruth, Ronald D. (Woodside, CA); Zolotorev, Max (Mountain View, CA)

    1998-01-01

    A high-power RF switching device employs a semiconductor wafer positioned in the third port of a three-port RF device. A controllable source of directed energy, such as a suitable laser or electron beam, is aimed at the semiconductor material. When the source is turned on, the energy incident on the wafer induces an electron-hole plasma layer on the wafer, changing the wafer's dielectric constant, turning the third port into a termination for incident RF signals, and. causing all incident RF signals to be reflected from the surface of the wafer. The propagation constant of RF signals through port 3, therefore, can be changed by controlling the beam. By making the RF coupling to the third port as small as necessary, one can reduce the peak electric field on the unexcited silicon surface for any level of input power from port 1, thereby reducing risk of damaging the wafer by RF with high peak power. The switch is useful to the construction of an improved pulse compression system to boost the peak power of microwave tubes driving linear accelerators. In this application, the high-power RF switch is placed at the coupling iris between the charging waveguide and the resonant storage line of a pulse compression system. This optically controlled high power RF pulse compression system can handle hundreds of Megawatts of power at X-band.

  9. Code linkages for occupant safety during roadside impact simulations

    SciTech Connect (OSTI)

    Kay, G.J.; Logan, R.

    1994-01-11

    Current code linkage developments at Lawrence Livermore National Laboratory include coupling of the nonlinear explicit finite element analysis (FEA) code DYNA3D with rigid body crash victim simulation (CVS) codes. This coupling approach takes advantage of the structural response capabilities of DYNA3D and the validated occupant response abilities of the CVS codes. Two types of coupling are described and demonstrated in this paper and a description of the equilibrium initialization method which was employed in the coupling development is also presented.

  10. A Basic Overview of the Occupational Radiation Exposure Monitoring, Analysis & Reporting

    Energy Savers [EERE]

    Occupational Radiation Exposure: Monitoring, Analysis & Reporting A Basic Overview of OCCUPATIONAL RADIATION EXPOSURE Monitoring, Analysis & Reporting Outreach & Awareness Series to Advance the DOE Mission Office of Health, Safety and Security U.S. Department of Energy September 2012 Occupational Radiation Exposure: Monitoring, Analysis & Reporting i Overview One of the priorities of the Department of Energy (DOE) is to ensure a safe and secure workplace by integrating safety and

  11. A Basic Overview of the Occupational Radiation Exposure Monitoring, Analysis & Reporting

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

    Occupational Radiation Exposure: Monitoring, Analysis & Reporting A Basic Overview of OCCUPATIONAL RADIATION EXPOSURE Monitoring, Analysis & Reporting Outreach & Awareness Series to Advance the DOE Mission Office of Health, Safety and Security U.S. Department of Energy September 2012 Occupational Radiation Exposure: Monitoring, Analysis & Reporting i Overview One of the priorities of the Department of Energy (DOE) is to ensure a safe and secure workplace by integrating safety and

  12. Type B Investigation Board Report on the June 19, 1997, Occupational

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

    Illness at the Y-12 Plant, Oak Ridge, Tennessee | Department of Energy Investigation Board Report on the June 19, 1997, Occupational Illness at the Y-12 Plant, Oak Ridge, Tennessee Type B Investigation Board Report on the June 19, 1997, Occupational Illness at the Y-12 Plant, Oak Ridge, Tennessee October 22, 1997 An occupational illness at the Y-12 Site resulting in a five-day hospitalization was investigated. In conducting its investigation, the Type B Investigation Board (Board) held

  13. Fiscal Year 2013 Department of Energy Annual Occupational Safety and Health

    Office of Environmental Management (EM)

    Report for Federal Employees to the Secretary of Labor | Department of Energy Fiscal Year 2013 Department of Energy Annual Occupational Safety and Health Report for Federal Employees to the Secretary of Labor Fiscal Year 2013 Department of Energy Annual Occupational Safety and Health Report for Federal Employees to the Secretary of Labor Fiscal Year 2013 Department of Energy Annual Occupational Safety and Health Report for Federal Employees to the Secretary of Labor. PDF icon Fiscal Year

  14. PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational Health

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

    and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) | Department of Energy MedGate Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational Health and Safety Medical System (OHS) (Includes the Drug and Alcohol Testing System (Assistant)) PIA - Savannah River Nuclear Solution (SRNS) MedGate Occupational Health and Safety Medical System

  15. Use of Occupancy Sensors in LED Parking Lot and Garage Applications...

    Office of Scientific and Technical Information (OSTI)

    Experiences Kinzey, Bruce R.; Myer, Michael; Royer, Michael P.; Sullivan, Greg P. LED lighting; parking lot lighting; occupancy sensors LED lighting; parking lot lighting;...

  16. Use of Occupancy Sensors in LED Parking Lot and Garage Applications...

    Office of Scientific and Technical Information (OSTI)

    reducing energy use in exterior commercial lighting applications. Done correctly, occupancy sensors can substantially enhance the savings from an already efficient lighting system. ...

  17. Prediction of Acoustic Noise in Switched Reluctance Motor Drives

    SciTech Connect (OSTI)

    Lin, CJ; Fahimi, B

    2014-03-01

    Prediction of acoustic noise distribution generated by electric machines has become an integral part of design and control in noise sensitive applications. This paper presents a fast and precise acoustic noise imaging technique for switched reluctance machines (SRMs). This method is based on distribution of radial vibration in the stator frame of the SRM. Radial vibration of the stator frame, at a network of probing points, is computed using input phase current and phase voltage waveforms. Sequentially, the acceleration of the probing network will be expanded to predict full acceleration on the stator frame surface, using which acoustic noise emission caused by the stator can be calculated using the boundary element method.

  18. Klystron switching power supplies for the Internation Linear Collider

    SciTech Connect (OSTI)

    Fraioli, Andrea; /Cassino U. /INFN, Pisa

    2009-12-01

    The International Linear Collider is a majestic High Energy Physics particle accelerator that will give physicists a new cosmic doorway to explore energy regimes beyond the reach of today's accelerators. ILC will complement the Large Hadron Collider (LHC), a proton-proton collider at the European Center for Nuclear Research (CERN) in Geneva, Switzerland, by producing electron-positron collisions at center of mass energy of about 500 GeV. In particular, the subject of this dissertation is the R&D for a solid state Marx Modulator and relative switching power supply for the International Linear Collider Main LINAC Radio Frequency stations.

  19. The design and analysis of multi-megawatt distributed single pole double throw (SPDT) microwave switches

    SciTech Connect (OSTI)

    Tantawi, S.G. [Stanford Linear Accelerator Center, SLAC, 2575 Sand Hill Rd. Menlo Park, California 94025 (United States)

    1999-05-01

    We present design methodology and analysis for an SPDT switch that is capable of handling hundreds of megawatts of power at X-band. The switch is designed for application in high power rf systems in particular future Linear Colliders (1). In these systems switching need to be fast in one direction only. We use this to our advantage to reach a design for a super high power switch. In our analysis we treat the problem from an abstract point of view. We introduce a unified analysis for the microwave circuits irrespective of the switching elements. The analysis is, then, suitable for different kinds of switching elements such as photoconductrs. PIN diodes, and plasma discharge in low-pressure gases. {copyright} {ital 1999 American Institute of Physics.}

  20. Analysis of reliable sub-ns spin-torque switching under transverse bias magnetic fields

    SciTech Connect (OSTI)

    D'Aquino, M.; Perna, S.; Serpico, C.; Bertotti, G.; Mayergoyz, I. D.

    2015-05-07

    The switching process of a magnetic spin-valve nanosystem subject to spin-polarized current pulses is considered. The dependence of the switching probability on the current pulse duration is investigated. The further application of a transverse field along the intermediate anisotropy axis of the particle is used to control the quasi-random relaxation of magnetization to the reversed magnetization state. The critical current amplitudes to realize the switching are determined by studying the phase portrait of the Landau-Lifshtz-Slonczewski dynamics. Macrospin numerical simulations are in good agreement with the theoretical prediction and demonstrate reliable switching even for very short (below 100 ps) current pulses.

  1. Next-gen RF MEMS Switch for a Smarter, Faster Internet of Things...

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

    RF MEMS Switch for a Smarter, Faster Internet of Things Karen Lightman 2014.03.28 Big Data. Internet of Things. Quantified Self. Connected Home. Connected City. These...

  2. Ionic switch controls the DNA state in phage λ

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

    Li, Dong; Liu, Ting; Zuo, Xiaobing; Li, Tao; Qiu, Xiangyun; Evilevitch, Alex

    2015-06-19

    We have recently found that DNA packaged in phage λ undergoes a disordering transition triggered by temperature, which results in increased genome mobility. This solid-to-fluid like DNA transition markedly increases the number of infectious λ particles facilitating infection. However, the structural transition strongly depends on temperature and ionic conditions in the surrounding medium. Using titration microcalorimetry combined with solution X-ray scattering, we mapped both energetic and structural changes associated with transition of the encapsidated λ-DNA. Packaged DNA needs to reach a critical stress level in order for transition to occur. We varied the stress on DNA in the capsid bymore » changing the temperature, packaged DNA length and ionic conditions. We found striking evidence that the intracapsid DNA transition is ‘switched on’ at the ionic conditions mimicking those in vivo and also at the physiologic temperature of infection at 37°C. This ion regulated on-off switch of packaged DNA mobility in turn affects viral replication. The results suggest a remarkable adaptation of phage λ to the environment of its host bacteria in the human gut. The metastable DNA state in the capsid provides a new paradigm for the physical evolution of viruses.« less

  3. Occupational radiation Exposure at Agreement State-Licensed Materials Facilities, 1997-2010

    SciTech Connect (OSTI)

    U.S. Nuclear Regulatory Commission, Office of Nuclear Regulatory Research

    2012-07-07

    The purpose of this report is to examine occupational radiation exposures received under Agreement State licensees. As such, this report reflects the occupational radiation exposure data contained in the Radiation Exposure Information and Reporting System (REIRS) database, for 1997 through 2010, from Agreement State-licensed materials facilities.

  4. Biokinetic data and models for occupational intake of lanthanoids

    SciTech Connect (OSTI)

    Leggett, Richard Wayne; Ansoborlo, Eric; Bailey, Michael; Gregoratto, Demetrio; Pacquet, Francois; Taylor, David

    2014-05-12

    The lanthanoid (or lanthanide) chemical elements comprise fifteen elements with atomic numbers 57 (lanthanum) through 71 (lutetium). This paper reviews data related to the biological behavior of these elements in the human body and proposes biokinetic models for application to occupational intake of radio-lanthanoids. Generic (element-independent) absorption rates from the respiratory and alimentary tracts to blood are proposed. The proposed systemic models are largely generic but include some element-specific parameter values to reflect regular changes with ionic radius in certain aspects of the behavior of the lanthanoids. This work was performed within the internal dosimetry task group (INDOS) of Committee 2 of the International Commission on Radiological Protection (ICRP).

  5. Biokinetic data and models for occupational intake of lanthanoids

    SciTech Connect (OSTI)

    Leggett, Richard Wayne; Ansoborlo, Eric; Bailey, Dr. Michael; Gregoratto, Demetrio; Pacquet, Dr. Francois; Taylor, Dr. David

    2014-01-01

    The lanthanoid (or lanthanide) chemical elements comprise fifteen elements with atomic numbers 57 (lanthanum) through 71 (lutetium). This paper reviews data related to the biological behavior of these elements in the human body and proposes biokinetic models for application to occupational intake of radio-lanthanoids. Generic (element-independent) absorption rates from the respiratory and alimentary tracts to blood are proposed. The proposed systemic models are largely generic but include some element-specific parameter values to reflect regular changes with ionic radius in certain aspects of the behavior of the lanthanoids. This work was performed within the internal dosimetry task group (INDOS) of Committee 2 of the International Commission on Radiological Protection (ICRP).

  6. Biokinetic data and models for occupational intake of lanthanoids

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

    Leggett, Richard Wayne; Ansoborlo, Eric; Bailey, Michael; Gregoratto, Demetrio; Pacquet, Francois; Taylor, David

    2014-05-12

    The lanthanoid (or lanthanide) chemical elements comprise fifteen elements with atomic numbers 57 (lanthanum) through 71 (lutetium). This paper reviews data related to the biological behavior of these elements in the human body and proposes biokinetic models for application to occupational intake of radio-lanthanoids. Generic (element-independent) absorption rates from the respiratory and alimentary tracts to blood are proposed. The proposed systemic models are largely generic but include some element-specific parameter values to reflect regular changes with ionic radius in certain aspects of the behavior of the lanthanoids. This work was performed within the internal dosimetry task group (INDOS) of Committeemore » 2 of the International Commission on Radiological Protection (ICRP).« less

  7. Occupational Radiation Exposure Analysis of US ITER DCLL TBM

    SciTech Connect (OSTI)

    Merrill, Brad J; Cadwallader, Lee C; Dagher, Mohamad

    2007-08-01

    This report documents an Occupational Radiation Exposure (ORE) analysis that was performed for the US International Thermonuclear Experimental Reactor (ITER) Dual Coolant Lead Lithium (DCLL) Test Blanket Module (TBM). This analysis was performed with the QADMOD dose code for anticipated maintenance activities for this TBM concept and its ancillary systems. The QADMOD code was used to model the PbLi cooling loop of this TBM concept by specifying gamma ray source terms that simulated radioactive material within the piping, valves, heat exchanger, permeator, pump, drain tank, and cold trap of this cooling system. Estimates of the maintenance tasks that will have to be performed and the time required to perform these tasks where developed based on either expert opinion or on industrial maintenance experience for similar technologies. This report details the modeling activity and the calculated doses for the maintenance activities envisioned for the US DCLL TBM.

  8. The Finite Horizon Optimal Multi-Modes Switching Problem: The Viscosity Solution Approach

    SciTech Connect (OSTI)

    El Asri, Brahim Hamadene, Said

    2009-10-15

    In this paper we show existence and uniqueness of a solution for a system of m variational partial differential inequalities with inter-connected obstacles. This system is the deterministic version of the Verification Theorem of the Markovian optimal m-states switching problem. The switching cost functions are arbitrary. This problem is in relation with the valuation of firms in a financial market.

  9. Integration of planar transformer and/or planar inductor with power switches in power converter

    DOE Patents [OSTI]

    Chen, Kanghua (Canton, MI); Ahmed, Sayeed (Canton, MI); Zhu, Lizhi (Canton, MI)

    2007-10-30

    A power converter integrates at least one planar transformer comprising a multi-layer transformer substrate and/or at least one planar inductor comprising a multi-layer inductor substrate with a number of power semiconductor switches physically and thermally coupled to a heat sink via one or more multi-layer switch substrates.

  10. E-beam high voltage switching power supply

    DOE Patents [OSTI]

    Shimer, Daniel W.; Lange, Arnold C.

    1996-01-01

    A high-power power supply produces a controllable, constant high voltage put under varying and arcing loads. The power supply includes a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, an output rectifier for producing a dc voltage at the output of each module, and a current sensor for sensing output current. The power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle and circuitry is provided for sensing incipient arc currents at the output of the power supply to simultaneously decouple the power supply circuitry from the arcing load. The power supply includes a plurality of discrete switching type dc--dc converter modules.

  11. E-beam high voltage switching power supply

    DOE Patents [OSTI]

    Shimer, D.W.; Lange, A.C.

    1996-10-15

    A high-power power supply produces a controllable, constant high voltage output under varying and arcing loads. The power supply includes a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, an output rectifier for producing a dc voltage at the output of each module, and a current sensor for sensing output current. The power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle and circuitry is provided for sensing incipient arc currents at the output of the power supply to simultaneously decouple the power supply circuitry from the arcing load. The power supply includes a plurality of discrete switching type dc--dc converter modules. 5 figs.

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

    DOE Patents [OSTI]

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

    2001-01-01

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

  13. Spin switches for compact implementation of neuron and synapse

    SciTech Connect (OSTI)

    Quang Diep, Vinh Sutton, Brian; Datta, Supriyo; Behin-Aein, Behtash

    2014-06-02

    Nanomagnets driven by spin currents provide a natural implementation for a neuron and a synapse: currents allow convenient summation of multiple inputs, while the magnet provides the threshold function. The objective of this paper is to explore the possibility of a hardware neural network implementation using a spin switch (SS) as its basic building block. SS is a recently proposed device based on established technology with a transistor-like gain and input-output isolation. This allows neural networks to be constructed with purely passive interconnections without intervening clocks or amplifiers. The weights for the neural network are conveniently adjusted through analog voltages that can be stored in a non-volatile manner in an underlying CMOS layer using a floating gate low dropout voltage regulator. The operation of a multi-layer SS neural network designed for character recognition is demonstrated using a standard simulation model based on coupled Landau-Lifshitz-Gilbert equations, one for each magnet in the network.

  14. Fast deterministic switching in orthogonal spin torque devices via the control of the relative spin polarizations

    SciTech Connect (OSTI)

    Park, Junbo; Buhrman, R. A.; Ralph, D. C.; Kavli Institute at Cornell, Ithaca, New York 14853

    2013-12-16

    We model 100 ps pulse switching dynamics of orthogonal spin transfer (OST) devices that employ an out-of-plane polarizer and an in-plane polarizer. Simulation results indicate that increasing the spin polarization ratio, C{sub P}?=?P{sub IPP}/P{sub OPP}, results in deterministic switching of the free layer without over-rotation (360° rotation). By using spin torque asymmetry to realize an enhanced effective P{sub IPP}, we experimentally demonstrate this behavior in OST devices in parallel to anti-parallel switching. Modeling predicts that decreasing the effective demagnetization field can substantially reduce the minimum C{sub P} required to attain deterministic switching, while retaining low critical switching current, I{sub p}???500??A.

  15. Stochastic Modeling of Overtime Occupancy and Its Application in Building Energy Simulation and Calibration

    SciTech Connect (OSTI)

    Sun, Kaiyu; Yan , Da; Hong , Tianzhen; Guo, Siyue

    2014-02-28

    Overtime is a common phenomenon around the world. Overtime drives both internal heat gains from occupants, lighting and plug-loads, and HVAC operation during overtime periods. Overtime leads to longer occupancy hours and extended operation of building services systems beyond normal working hours, thus overtime impacts total building energy use. Current literature lacks methods to model overtime occupancy because overtime is stochastic in nature and varies by individual occupants and by time. To address this gap in the literature, this study aims to develop a new stochastic model based on the statistical analysis of measured overtime occupancy data from an office building. A binomial distribution is used to represent the total number of occupants working overtime, while an exponential distribution is used to represent the duration of overtime periods. The overtime model is used to generate overtime occupancy schedules as an input to the energy model of a second office building. The measured and simulated cooling energy use during the overtime period is compared in order to validate the overtime model. A hybrid approach to energy model calibration is proposed and tested, which combines ASHRAE Guideline 14 for the calibration of the energy model during normal working hours, and a proposed KS test for the calibration of the energy model during overtime. The developed stochastic overtime model and the hybrid calibration approach can be used in building energy simulations to improve the accuracy of results, and better understand the characteristics of overtime in office buildings.

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

    SciTech Connect (OSTI)

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

    2010-07-28

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

  17. Ionic field effect and memristive phenomena in single-point ferroelectric domain switching

    SciTech Connect (OSTI)

    Ievlev, Anton; Morozovska, A. N.; Eliseev, E. A.; Shur, Vladimir Ya.; Kalinin, Sergei V

    2014-01-01

    Electric field induced polarization switching underpins most functional applications of ferroelectric materials in information technology, materials science, and optoelectronics. In the last 20 years, much attention has been focused on the switching of individual domains using scanning probe microscopy, both as model of ferroelectric data storage and approach to explore fundamental physics of ferroelectric switching. The classical picture of tip induced switching includes formation of cylindrical domain oriented along the tip field, with the domain size is largely determined by the tip-induced field distribution and domain wall motion kinetics. The polarization screening is recognized as a necessary precondition to the stability of ferroelectric phase; however, screening processes are generally considered to be uniformly efficient and not leading to changes in switching behavior. Here, we demonstrate that single-point tip-induced polarization switching can give rise to a surprisingly broad range of domain morphologies, including radial and angular instabilities. These behaviors are traced to the surface screening charge dynamics, which in some cases can even give rise to anomalous switching against the electric field (ionic field effect). The implications of these behaviors for ferroelectric materials and devices are discussed.

  18. Audit of Department of Energy Contractor Occupational Injury and Illness Reporting Practices, IG-0404

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

    May 7, 1997 MEMORANDUM FOR THE SECRETARY FROM: John C. Layton Inspector General SUBJECT: INFORMATION: Report on "Audit of Department of Energy Contractor Occupational Injury and Illness Reporting Practices" BACKGROUND: The Department and its contractors are responsible for ensuring that a safe and healthy work environment is provided to Department and contractor employees at its operating facilities. Contractors are responsible for establishing a comprehensive occupational safety and

  19. Potential of Thermoelectrics forOccupant Comfort and Fuel Efficiency Gains

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

    in Vehicle Applications | Department of Energy of Thermoelectrics forOccupant Comfort and Fuel Efficiency Gains in Vehicle Applications Potential of Thermoelectrics forOccupant Comfort and Fuel Efficiency Gains in Vehicle Applications 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. PDF icon 2006_deer_bell.pdf More Documents & Publications Vehicle Fuel Economy

  20. Guide of Good Practices for Occupational Radiological Protection in Uranium Facilities

    Office of Environmental Management (EM)

    36-2009 July 2009 DOE STANDARD GUIDE OF GOOD PRACTICES FOR OCCUPATIONAL RADIOLOGICAL PROTECTION IN URANIUM FACILITIES U.S. Department of Energy AREA SAFT Washington, D.C. 20585 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. DOE-STD-1136-2009 Guide of Good Practices for Occupational Radiological Protection in Uranium Facilities i This document is available on the Department of Energy Technical Standards Program Web Site at

  1. Effects of graphene on electro-optic switching and spontaneous polarization of a ferroelectric liquid crystal

    SciTech Connect (OSTI)

    Basu, Rajratan, E-mail: basu@usna.edu [Department of Physics, Soft-matter and Nanomaterials Laboratory, The United States Naval Academy, Annapolis, Maryland 21402 (United States)

    2014-09-15

    A small quantity of graphene flakes was doped in a ferroelectric liquid crystal (FLC), and the field-induced ferroelectric electro-optic switching was found to be significantly faster in the FLC + graphene hybrid than that of the pure FLC. Further studies revealed that the suspended graphene flakes enhanced the FLC's spontaneous polarization by improving smectic-C ordering resulting from the ?–? electron stacking, and reduced rotation viscosity by trapping some of the free ions of the FLC media. These effects coherently impacted the FLC-switching phenomenon, enabling the FLC molecules to switch faster on reversing an external electric field.

  2. Artificial molecules that switch "handedness" at light-speed

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

    Artificial molecules that switch "handedness" Artificial molecules that switch "handedness" at light-speed Researchers create the first artificial molecules whose chirality can be rapidly switched from a right-handed to a left-handed orientation with a beam of light. July 10, 2012 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,

  3. Low jitter spark gap switch for repetitively pulsed parallel capacitor banks

    SciTech Connect (OSTI)

    Rohwein, G. J.

    1980-01-01

    A two-section air insulated spark gap has been developed for switching multi-kilojoule plus-minus charged parallel capacitor banks which operate continuously at pulse rates up to 20 pps. The switch operates with less than 2 ns jitter, recovers its dielectric strength within 2 to 5 ms and has not shown degraded performance in sequential test runs totaling over a million shots. Its estimated life with copper electrodes is > 10/sup 7/ shots. All preliminary tests indicate that the switch is suitable for continuous running multi-kilojoule systems operating to at least 20 pps.

  4. Differential ultrafast all-optical switching of the resonances of a micropillar cavity

    SciTech Connect (OSTI)

    Thyrrestrup, Henri Yüce, Emre; Ctistis, Georgios; Vos, Willem L.; Claudon, Julien; Gérard, Jean-Michel

    2014-09-15

    We perform frequency- and time-resolved all-optical switching of a GaAs-AlAs micropillar cavity using an ultrafast pump-probe setup. The switching is achieved by two-photon excitation of free carriers. We track the cavity resonances in time with a high frequency resolution. The pillar modes exhibit simultaneous frequency shifts, albeit with markedly different maximum switching amplitudes and relaxation dynamics. These differences stem from the non-uniformity of the free carrier density in the micropillar, and are well understood by taking into account the spatial distribution of injected free carriers, their spatial diffusion and surface recombination at micropillar sidewalls.

  5. Resistive switching in a few nanometers thick tantalum oxide film formed by a metal oxidation

    SciTech Connect (OSTI)

    Ohno, Takeo; Samukawa, Seiji

    2015-04-27

    Resistive switching in a Cu/Ta{sub 2}O{sub 5}/Pt structure that consisted of a few nanometer-thick Ta{sub 2}O{sub 5} film was demonstrated. The Ta{sub 2}O{sub 5} film with thicknesses of 2–5?nm was formed with a combination of Ta metal film deposition and neutral oxygen particle irradiation at room temperature. The device exhibited a bipolar resistive switching with a threshold voltage of 0.2?V and multilevel switching operation.

  6. Development of Occupational Exposure Limits for the Hanford Tank Farms

    SciTech Connect (OSTI)

    Still, Kenneth; Gardner, Donald; Snyder, Robert; Anderson, Thomas; Honeyman, James; Timchalk, Charles

    2010-04-01

    Production of plutonium for the United States’ nuclear weapons program from the 1940’s to the 1980’s generated 53 million gallons of radioactive chemical waste, which is storedin 177 underground tanks at the Hanford Site in southeastern W 18 ashington State. Recent 19 attempts to begin the retrieval and treatment of these wastes require moving the waste to 20 more modern tanks results in potential exposure of the workers to unfamiliar odors 21 emanating from headspace in the tanks. Given the unknown risks involved, workers 22 were placed on supplied air respiratory protection. CH2M HILL, the managers of the 23 Hanford Site Tank Farms, asked an Independent Toxicology Panel (ITP) to assist them in issues relating to an Industrial Hygiene and risk assessment problem. The ITP was called upon to help determine the risk of exposure to vapors from the tanks, and in general develop a strategy for solution of the problem. This paper presents the methods used to determine the chemicals of potential concern (COPC) and the resultant development of screening values and Acceptable Occupational Exposure Limits (AOELs) for these COPCs. A total of 1,826 chemicals were inventoried and evaluated. Over 1,500 chemicals were identified in the waste tanks headspaces and more than 600 of these were assigned screening values; 72 of these compounds were recommended for AOEL development. Included in this list of 72 were 57 COPCs identified by the ITP and of these 47 were subsequently assigned AOELs. An exhaustive exposure assessment strategy was developed by the CH2M HILL industrial hygiene department to evaluate these COPCs.

  7. Hybrid plasmonic nanodevices: Switching mechanism for the nonlinear emission

    SciTech Connect (OSTI)

    Bragas, Andrea V.; Singh, Mahi R.

    2014-03-31

    Control of the light emission at the nanoscale is of central interest in nanophotonics due to the many applications in very different fields, ranging from quantum information to biophysics. Resonant excitation of surface plasmon polaritons in metal nanoparticles create nanostructured and enhanced light fields around those structures, which produce their strong interaction in a hybrid nanodevice with other plasmonic or non-plasmonic objects. This interaction may in turn also modulate the far field with important consequences in the applications. We show in this paper that the nonlinear emission from semiconductor quantum dots is strongly affected by the close presence of metal nanoparticles, which are resonantly excited. Using a pulsed laser, optical second harmonic is generated in the quantum dot, and it is highly enhanced when the laser is tuned around the nanoparticle plasmon resonance. Even more interesting is the demonstration of a switching mechanism, controlled by an external continuous-wave field, which can enhance or extinguish the SH signal, even when the pulsed laser is always on. Experimental observations are in excellent agreement with the theoretical calculations, based on the dipole-dipole near-field coupling of the objects forming the hybrid system.

  8. Metal-to-insulator switching in quantum anomalous Hall states

    SciTech Connect (OSTI)

    Kou, Xufeng; Pan, Lei; Wang, Jing; Fan, Yabin; Choi, Eun Sang; Lee, Wei -Li; Nie, Tianxiao; Murata, Koichi; Shao, Qiming; Zhang, Shou -Cheng; Wang, Kang L.

    2015-10-07

    After decades of searching for the dissipationless transport in the absence of any external magnetic field, quantum anomalous Hall effect (QAHE) was recently achieved in magnetic topological insulator films. However, the universal phase diagram of QAHE and its relation with quantum Hall effect (QHE) remain to be investigated. Here, we report the experimental observation of the giant longitudinal resistance peak and zero Hall conductance plateau at the coercive field in the six quintuple-layer (Cr0.12Bi0.26Sb0.62)2Te3 film, and demonstrate the metal-to-insulator switching between two opposite QAHE plateau states up to 0.3 K. Moreover, the universal QAHE phase diagram is confirmed through the angle-dependent measurements. Our results address that the quantum phase transitions in both QAHE and QHE regimes are in the same universality class, yet the microscopic details are different. Additionally, the realization of the QAHE insulating state unveils new ways to explore quantum phase-related physics and applications.

  9. Metal-to-insulator switching in quantum anomalous Hall states

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

    Kou, Xufeng; Pan, Lei; Wang, Jing; Fan, Yabin; Choi, Eun Sang; Lee, Wei -Li; Nie, Tianxiao; Murata, Koichi; Shao, Qiming; Zhang, Shou -Cheng; et al

    2015-10-07

    After decades of searching for the dissipationless transport in the absence of any external magnetic field, quantum anomalous Hall effect (QAHE) was recently achieved in magnetic topological insulator films. However, the universal phase diagram of QAHE and its relation with quantum Hall effect (QHE) remain to be investigated. Here, we report the experimental observation of the giant longitudinal resistance peak and zero Hall conductance plateau at the coercive field in the six quintuple-layer (Cr0.12Bi0.26Sb0.62)2Te3 film, and demonstrate the metal-to-insulator switching between two opposite QAHE plateau states up to 0.3 K. Moreover, the universal QAHE phase diagram is confirmed through themore » angle-dependent measurements. Our results address that the quantum phase transitions in both QAHE and QHE regimes are in the same universality class, yet the microscopic details are different. Additionally, the realization of the QAHE insulating state unveils new ways to explore quantum phase-related physics and applications.« less

  10. Deterministic Arbitrary Switching of Polarization in a Ferroelectric Thin Film

    SciTech Connect (OSTI)

    Vasudevan, Rama K [ORNL; Matsumoto, Yuji [Tohoku University, Sendai, Japan; Cheng, Xuan [University of New South Wales, Sydney, Australia; Imai, Akira [Tokyo Institute of Technology; Maruyama, Shingo [Tohoku University, Sendai, Japan; Xin, Huolin L. [Brookhaven National Laboratory (BNL); Okatan, Mahmut B [ORNL; Jesse, Stephen [ORNL; Kalinin, Sergei V [ORNL; Nagarajan, Valanoor [University of New South Wales

    2014-01-01

    Ferroelectrics have been used as memory storage devices, with an upper bound on the total possible memory levels generally dictated by the number of degenerate states allowed by the symmetry of the ferroelectric phase. Here, we introduce a new concept for storage wherein the polarization can be rotated arbitrarily, effectively decoupling it from the crystallographic symmetry of the ferroelectric phase on the mesoscale. By using a Bi5Ti3FeO15-CoFe2O4 film and via Band-Excitation Piezoresponse Force Microscopy, we show the ability to arbitrarily rotate polarization, create a spectrum of switched states, and suggest the reason for the polarization rotation is an abundance of sub-50nm nanodomains. Transmission electron microscopy-based strain mapping confirms significant local strain undulations imparted on the matrix by the CoFe2O4 inclusions, which causes significant local disorder. These experiments point to controlled tuning of polarization rotation in a standard ferroelectric, and hence the potential to greatly extend the attainable densities for ferroelectric memories.

  11. Thermionic switched self-actuating reactor shutdown system

    DOE Patents [OSTI]

    Barrus, Donald M. (San Jose, CA); Shires, Charles D. (San Jose, CA); Brummond, William A. (Livermore, CA)

    1989-01-01

    A self-actuating reactor shutdown system incorporating a thermionic switched electromagnetic latch arrangement which is responsive to reactor neutron flux changes and to reactor coolant temperature changes. The system is self-actuating in that the sensing thermionic device acts directly to release (scram) the control rod (absorber) without reference or signal from the main reactor plant protective and control systems. To be responsive to both temperature and neutron flux effects, two detectors are used, one responsive to reactor coolant temperatures, and the other responsive to reactor neutron flux increase. The detectors are incorporated into a thermionic diode connected electrically with an electromagnetic mechanism which under normal reactor operating conditions holds the the control rod in its ready position (exterior of the reactor core). Upon reaching either a specified temperature or neutron flux, the thermionic diode functions to short-circuit the electromagnetic mechanism causing same to lose its holding power and release the control rod, which drops into the reactor core region under gravitational force.

  12. Discrete Li-occupation versus pseudo-continuous Na-occupation and their relationship with structural change behaviors in Fe?(MoO?)?

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

    Yue, Ji-Li; Zhou, Yong-Ning; Shi, Si-Qi; Shadike, Zulipiya; Huang, Xuan-Qi; Luo, Jun; Yang, Zhen-Zhong; Li, Hong; Gu, Lin; Yang, Xiao-Qing; et al

    2015-03-06

    The key factors governing the single-phase or multi-phase structural change behaviors during the intercalation/deintercalation of guest ions have not been well studied and understood yet. Through systematic studies of orthorhombic Fe?(MoO?)? electrode, two distinct guest ion occupation paths, namely discrete one for Li and pseudo-continuous one for Na, as well as their relationship with single-phase and two-phase modes for Na? and Li?, respectively during the intercalation/deintercalation process have been demonstrated. For the first time, the direct atomic-scale observation of biphasic domains (discrete occupation) in partially lithiated Fe?(MoO?)? and the one by one Na occupation (pseudo-continuous occupation) at 8d sites inmore »partially sodiated Fe?(MoO?)? are obtained during the discharge processes of Li/Fe?(MoO?)? and Na/Fe?(MoO?)? cells respectively. Our combined experimental and theoretical studies bring the new insights for the research and development of intercalation compounds as electrode materials for secondary batteries.« less

  13. A Low Hysteresis NiTiFe Shape Memory Alloy Based Thermal Conduction Switch

    SciTech Connect (OSTI)

    Lemanski, J. L.; Krishnan, V. B.; Manjeri, R. Mahadevan; Vaidyanathan, R.; Notardonato, W. U.

    2006-03-31

    Shape memory alloys possess the ability to return to a preset shape by undergoing a solid state phase transformation at a particular temperature. This work reports on the development and testing of a low temperature thermal conduction switch that incorporates a NiTiFe shape memory element for actuation. The switch was developed to provide a variable conductive pathway between liquid methane and liquid oxygen dewars in order to passively regulate the temperature of methane. The shape memory element in the switch undergoes a rhombohedral or R-phase transformation that is associated with a small hysteresis (typically 1-2 deg. C) and offers the advantage of precision control over a set temperature range. For the NiTiFe alloy used, its thermomechanical processing, subsequent characterization using dilatometry, differential scanning calorimetry and implementation in the conduction switch configuration are addressed.

  14. Thread selection according to predefined power characteristics during context switching on compute nodes

    DOE Patents [OSTI]

    None

    2013-06-04

    Methods, apparatus, and products are disclosed for thread selection during context switching on a plurality of compute nodes that includes: executing, by a compute node, an application using a plurality of threads of execution, including executing one or more of the threads of execution; selecting, by the compute node from a plurality of available threads of execution for the application, a next thread of execution in dependence upon power characteristics for each of the available threads; determining, by the compute node, whether criteria for a thread context switch are satisfied; and performing, by the compute node, the thread context switch if the criteria for a thread context switch are satisfied, including executing the next thread of execution.

  15. Autoinhibition and Signaling by the Switch II Motif in the G...

    Office of Scientific and Technical Information (OSTI)

    the G-protein Chaperone of a Radical Bsubscript 12 Enzyme Citation Details In-Document Search Title: Autoinhibition and Signaling by the Switch II Motif in the G-protein ...

  16. Electric field-induced magnetic switching in Mn:ZnO film

    SciTech Connect (OSTI)

    Ren, S. X.; Sun, G. W.; Zhao, J.; Dong, J. Y.; Zhao, X.; Chen, W.; Wei, Y.; Ma, Z. C.

    2014-06-09

    A large magnetic modulation, accompanied by stable bipolar resistive switching (RS) behavior, was observed in a Mn:ZnO film by applying a reversible electric field. A significant enhancement of the ferromagnetism of the film, to about five times larger than that in the initial (as-grown) state (IS), was obtained by switching the film into the low resistance state. X-ray photoelectron spectroscopy demonstrated the existence of abundant oxygen vacancies in the IS of the film. We suggest that this electric field-induced magnetic switching effect originates with the migration and redistribution of oxygen vacancies during RS. Our work indicates that electric switching is an effective and simple method to increase the ferromagnetism of diluted magnetic oxide films. This provides a promising direction for research in spintronic devices.

  17. Electro-optic harmonic conversion to switch a laser beam out of a cavity

    DOE Patents [OSTI]

    Haas, R.A.; Henesian, M.A.

    1984-10-19

    The present invention relates to switching laser beams out of laser cavities, and more particularly, it relates to the use of generating harmonics of the laser beam to accomplish the switching. When laser light is generatd in a laser cavity the problem arises of how to switch the laser light out of the cavity in order to make use of the resulting laser beam in a well known multitude of ways. These uses include range finding, communication, remote sensing, medical surgery, laser fusion applications and many more. The switch-out problem becomes more difficult as the size of the laser aperture grows such as in laser fusion applications. The final amplifier stages of the Nova and Novette lasers at Lawrence Livermore National Laboratory are 46 centimeters with the laser beam expanded to 74 centimeters thereafter. Larger aperture lasers are planned.

  18. Binary and ternary gas mixtures for use in glow discharge closing switches

    DOE Patents [OSTI]

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

    1990-01-01

    Highly efficient binary and ternary gas mixtures for use in diffuse glow discharge closing switches are disclosed. The binary mixtures are combinations of helium or neon and selected perfluorides. The ternary mixtures are combinations of helium, neon, or argon, a selected perfluoride, and a small amount of gas that exhibits enhanced ionization characteristics. These mixtures are shown to be the optimum choices for use in diffuse glow discharge closing switches by virtue of the combined physio-electric properties of the mixture components.

  19. Method for wiring allocation and switch configuration in a multiprocessor environment

    DOE Patents [OSTI]

    Aridor, Yariv (Zichron Ya'akov, IL); Domany, Tamar (Kiryat Tivon, IL); Frachtenberg, Eitan (Jerusalem, IL); Gal, Yoav (Haifa, IL); Shmueli, Edi (Haifa, IL); Stockmeyer, legal representative, Robert E. (San Jose, CA); Stockmeyer, Larry Joseph (San Jose, CA)

    2008-07-15

    A method for wiring allocation and switch configuration in a multiprocessor computer, the method including employing depth-first tree traversal to determine a plurality of paths among a plurality of processing elements allocated to a job along a plurality of switches and wires in a plurality of D-lines, and selecting one of the paths in accordance with at least one selection criterion.

  20. PPPL lends General Electric a hand in developing an advanced power switch |

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

    Princeton Plasma Physics Lab lends General Electric a hand in developing an advanced power switch By John Greenwald August 28, 2014 Tweet Widget Google Plus One Share on Facebook Laboratory test of a liquid-metal cathode. (Photo by General Electric Co. ) Laboratory test of a liquid-metal cathode. Scientists at the U.S. Department of Energy's (DOE) Princeton Plasma Physics Laboratory (PPPL) are assisting General Electric Co. in developing an electrical switch that could help lower utility

  1. Viscosity Solutions of Systems of PDEs with Interconnected Obstacles and Switching Problem

    SciTech Connect (OSTI)

    Hamadene, S. Morlais, M. A.

    2013-04-15

    This paper deals with existence and uniqueness of a solution in viscosity sense, for a system of m variational partial differential inequalities with inter-connected obstacles. A particular case is the Hamilton-Jacobi-Bellmann system of the Markovian stochastic optimal m-states switching problem. The switching cost functions depend on (t,x). The main tool is the notion of systems of reflected backward stochastic differential equations with oblique reflection.

  2. Optical interconnect loop-back switch for in-situ diagnostics. (Conference)

    Office of Scientific and Technical Information (OSTI)

    | SciTech Connect interconnect loop-back switch for in-situ diagnostics. Citation Details In-Document Search Title: Optical interconnect loop-back switch for in-situ diagnostics. No abstract prepared. Authors: Spahn, Olga Blum ; Iannotti, Joe [1] ; Lewek, Daniel [2] ; Kornrumpf, Bill [3] ; Forman, Glenn [4] ; Kryzak, Chuck [5] ; Thorson, Kevin [6] ; Cowan, Bill ; Dagel, Daryl James ; Grossetete, Grant David + Show Author Affiliations (General Electric Global Research Center, Niskayuna, NY)

  3. Ultrananocrystalline diamond films with optimized dielectric properties for advanced RF MEMS capacitive switches

    DOE Patents [OSTI]

    Sumant, Anirudha V.; Auciello, Orlando H.; Mancini, Derrick C.

    2013-01-15

    An efficient deposition process is provided for fabricating reliable RF MEMS capacitive switches with multilayer ultrananocrystalline (UNCD) films for more rapid recovery, charging and discharging that is effective for more than a billion cycles of operation. Significantly, the deposition process is compatible for integration with CMOS electronics and thereby can provide monolithically integrated RF MEMS capacitive switches for use with CMOS electronic devices, such as for insertion into phase array antennas for radars and other RF communication systems.

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

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

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

  5. Current dependence of spin torque switching rate based on Fokker-Planck approach

    SciTech Connect (OSTI)

    Taniguchi, Tomohiro Imamura, Hiroshi

    2014-05-07

    The spin torque switching rate of an in-plane magnetized system in the presence of an applied field is derived by solving the Fokker-Planck equation. It is found that three scaling currents are necessary to describe the current dependence of the switching rate in the low-current limit. The dependences of these scaling currents on the applied field strength are also studied.

  6. Ultrashort pulse laser-triggering of long gap high voltage switches.

    Office of Scientific and Technical Information (OSTI)

    (Technical Report) | SciTech Connect Technical Report: Ultrashort pulse laser-triggering of long gap high voltage switches. Citation Details In-Document Search Title: Ultrashort pulse laser-triggering of long gap high voltage switches. Authors: Rambo, Patrick K. ; Schwarz, Jens ; Kimmel, Mark W. ; Van Tassle, Aaron J. ; Urayama, Junji ; Welch, Dale Robert [1] ; Rose, David V. [1] ; Thoma, Carsten [1] ; Clark, Robert E. [1] ; Miller, Craig [1] ; Zimmerman, William R. [1] ; Pitts, Todd Alan ;

  7. Ultrashort pulse laser-triggering of long gap high voltage switches.

    Office of Scientific and Technical Information (OSTI)

    (Technical Report) | SciTech Connect Technical Report: Ultrashort pulse laser-triggering of long gap high voltage switches. Citation Details In-Document Search Title: Ultrashort pulse laser-triggering of long gap high voltage switches. × You are accessing a document from the Department of Energy's (DOE) SciTech Connect. This site is a product of DOE's Office of Scientific and Technical Information (OSTI) and is provided as a public service. Visit OSTI to utilize additional information

  8. SEP Success Story: Louisiana Company Makes Switch to CNG, Helps Transform

    Energy Savers [EERE]

    Local Fuel Supplies | Department of Energy Louisiana Company Makes Switch to CNG, Helps Transform Local Fuel Supplies SEP Success Story: Louisiana Company Makes Switch to CNG, Helps Transform Local Fuel Supplies April 23, 2014 - 10:15am Addthis Shreveport, Louisiana's first public heavy duty CNG fueling station officially opened on Earth Day. | Photo courtesy of Ivan Smith Furniture Shreveport, Louisiana's first public heavy duty CNG fueling station officially opened on Earth Day. | Photo

  9. Louisiana Company Makes Switch to CNG, Helps Transform Local Fuel Supplies

    Office of Environmental Management (EM)

    | Department of Energy Louisiana Company Makes Switch to CNG, Helps Transform Local Fuel Supplies Louisiana Company Makes Switch to CNG, Helps Transform Local Fuel Supplies April 23, 2014 - 1:43pm Addthis Shreveport, Louisiana's first public heavy duty CNG fueling station officially opened on Earth Day. | Photo courtesy of Ivan Smith Furniture Shreveport, Louisiana's first public heavy duty CNG fueling station officially opened on Earth Day. | Photo courtesy of Ivan Smith Furniture Cedric

  10. Get Current: Switch on Clean Energy Activity Book | Department of Energy

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

    Activity Book Get Current: Switch on Clean Energy Activity Book Below is information about the student activity/lesson plan from your search. Grades K-4, 5-8, 9-12 Subject Energy Basics Summary Switching on clean energy technologies means strengthening the economy while protecting the environment. This activity book for all ages promotes energy awareness, with facts on different types of energy and a variety of puzzles in an energy theme. Curriculum Science, Mathematics, Language Arts Plan Time

  11. E-beam high voltage switching power supply

    DOE Patents [OSTI]

    Shimer, Daniel W.; Lange, Arnold C.

    1997-01-01

    A high power, solid state power supply is described for producing a controllable, constant high voltage output under varying and arcing loads suitable for powering an electron beam gun or other ion source. The present power supply is most useful for outputs in a range of about 100-400 kW or more. The power supply is comprised of a plurality of discrete switching type dc-dc converter modules, each comprising a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, and an output rectifier for producing a dc voltage at the output of each module. The inputs to the converter modules are fed from a common dc rectifier/filter and are linked together in parallel through decoupling networks to suppress high frequency input interactions. The outputs of the converter modules are linked together in series and connected to the input of the transmission line to the load through a decoupling and line matching network. The dc-dc converter modules are phase activated such that for n modules, each module is activated equally 360.degree./n out of phase with respect to a successive module. The phased activation of the converter modules, combined with the square current waveforms out of the step up transformers, allows the power supply to operate with greatly reduced output capacitance values which minimizes the stored energy available for discharge into an electron beam gun or the like during arcing. The present power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle using simulated voltage feedback signals and voltage feedback loops. Circuitry is also provided for sensing incipient arc currents reflected at the output of the power supply and for simultaneously decoupling the power supply circuitry from the arcing load.

  12. E-beam high voltage switching power supply

    DOE Patents [OSTI]

    Shimer, D.W.; Lange, A.C.

    1997-03-11

    A high power, solid state power supply is described for producing a controllable, constant high voltage output under varying and arcing loads suitable for powering an electron beam gun or other ion source. The present power supply is most useful for outputs in a range of about 100-400 kW or more. The power supply is comprised of a plurality of discrete switching type dc-dc converter modules, each comprising a voltage regulator, an inductor, an inverter for producing a high frequency square wave current of alternating polarity, an improved inverter voltage clamping circuit, a step up transformer, and an output rectifier for producing a dc voltage at the output of each module. The inputs to the converter modules are fed from a common dc rectifier/filter and are linked together in parallel through decoupling networks to suppress high frequency input interactions. The outputs of the converter modules are linked together in series and connected to the input of the transmission line to the load through a decoupling and line matching network. The dc-dc converter modules are phase activated such that for n modules, each module is activated equally 360{degree}/n out of phase with respect to a successive module. The phased activation of the converter modules, combined with the square current waveforms out of the step up transformers, allows the power supply to operate with greatly reduced output capacitance values which minimizes the stored energy available for discharge into an electron beam gun or the like during arcing. The present power supply also provides dynamic response to varying loads by controlling the voltage regulator duty cycle using simulated voltage feedback signals and voltage feedback loops. Circuitry is also provided for sensing incipient arc currents reflected at the output of the power supply and for simultaneously decoupling the power supply circuitry from the arcing load. 7 figs.

  13. Occupational Health Services Part I DE-AC06-04RL14383, Modification No. 171 Section B

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

    Occupational Health Services Part I DE-AC06-04RL14383, Modification No. 171 Section B Page B-2 B.1 Occupational Medical Services a. This is a performance-based, cost reimbursement service contract for the rendering of Occupational Medical Services for the U. S. Department of Energy's Hanford Site. The Contractor shall furnish all personnel, facilities, equipment, material, supplies, and services (except as expressly set forth in this contract as furnished by the Government) and otherwise do all

  14. X-RAY CONSTRAINTS ON THE LOCAL SUPERMASSIVE BLACK HOLE OCCUPATION FRACTION

    SciTech Connect (OSTI)

    Miller, Brendan P.; Gallo, Elena; Baldassare, Vivienne; Greene, Jenny E.; Kelly, Brandon C.; Treu, Tommaso; Woo, Jong-Hak

    2015-01-20

    Distinct seed formation mechanisms are imprinted upon the fraction of dwarf galaxies currently containing a central supermassive black hole. Seeding by Population III remnants is expected to produce a higher occupation fraction than is generated with direct gas collapse precursors. Chandra observations of nearby early-type galaxies can directly detect even low-level supermassive black hole activity, and the active fraction immediately provides a firm lower limit to the occupation fraction. Here, we use the volume-limited AMUSE surveys of ?200 optically selected early-type galaxies to characterize simultaneously, for the first time, the occupation fraction and the scaling of L {sub X} with M {sub star}, accounting for intrinsic scatter, measurement uncertainties, and X-ray limits. For early-type galaxies with M {sub star} < 10{sup 10} M {sub ?}, we obtain a lower limit to the occupation fraction of >20% (at 95% confidence), but full occupation cannot be excluded. The preferred dependence of log L {sub X} upon log M {sub star} has a slope of ?0.7-0.8, consistent with the ''downsizing'' trend previously identified from the AMUSE data set, and a uniform Eddington efficiency is disfavored at ?2?. We provide guidelines for the future precision with which these parameters may be refined with larger or more sensitive samples.

  15. Occupational safety data and casualty rates for the uranium fuel cycle. [Glossaries

    SciTech Connect (OSTI)

    O'Donnell, F.R.; Hoy, H.C.

    1981-10-01

    Occupational casualty (injuries, illnesses, fatalities, and lost workdays) and production data are presented and used to calculate occupational casualty incidence rates for technologies that make up the uranium fuel cycle, including: mining, milling, conversion, and enrichment of uranium; fabrication of reactor fuel; transportation of uranium and fuel elements; generation of electric power; and transmission of electric power. Each technology is treated in a separate chapter. All data sources are referenced. All steps used to calculate normalized occupational casualty incidence rates from the data are presented. Rates given include fatalities, serious cases, and lost workdays per 100 man-years worked, per 10/sup 12/ Btu of energy output, and per other appropriate units of output.

  16. Use of Occupancy Sensors in LED Parking Lot and Garage Applications: Early Experiences

    SciTech Connect (OSTI)

    Kinzey, Bruce R.; Myer, Michael; Royer, Michael P.; Sullivan, Greg P.

    2012-11-07

    Occupancy sensor systems are gaining traction as an effective technological approach to reducing energy use in exterior commercial lighting applications. Done correctly, occupancy sensors can substantially enhance the savings from an already efficient lighting system. However, this technology is confronted by several potential challenges and pitfalls that can leave a significant amount of the prospective savings on the table. This report describes anecdotal experiences from field installations of occupancy sensor controlled light-emitting diode (LED) lighting at two parking structures and two parking lots. The relative levels of success at these installations reflect a marked range of potential outcomes: from an additional 76% in energy savings to virtually no additional savings. Several issues that influenced savings were encountered in these early stage installations and are detailed in the report. Ultimately, care must be taken in the design, selection, and commissioning of a sensor-controlled lighting installation, else the only guaranteed result may be its cost.

  17. Perspective on occupational radiation exposures at a hypothetical fusion power station

    SciTech Connect (OSTI)

    Easterly, C.E.; Cannon, J.B.

    1983-01-01

    If current technology were used, several major sources of potential occupational radiation exposure at fusion power stations would be quite similar to those at current light water reactor power stations. Based upon this similarity, crude estimates of doses received from various maintenance operations at fusion power reactors are made. The dose estimates reinforce the need for concurrent development of sophisticated remote maintenance devices and low-activation materials for fusion reactors. It is concluded that minimization of occupational doses can be best achieved by developing an overall maintenance strategy that combines the best features of remote techniques and low activation materials as opposed to developing one or the other exclusively.

  18. The universal criterion for switching a magnetic vortex core in soft magnetic nanodots

    SciTech Connect (OSTI)

    Lee, K.-S.; Kim, S.-K.; Yu, Y.-S.; Choi, Y.-S.; Guslienko, K. Y.; Jung, H.; Fischer, P.

    2008-10-01

    The universal criterion for ultrafast vortex core switching between core-up and -down vortex bi-states in soft magnetic nanodots was empirically investigated by micromagnetic simulations and combined with an analytical approach. Vortex-core switching occurs whenever the velocity of vortex core motion reaches a critical value, which is {nu}{sub c} = 330 {+-} 37 m/s for Permalloy, as estimated from numerical simulations. This critical velocity was found to be {nu}{sub c} = {eta}{sub c}{gamma} {radical}A{sub ex} with A{sub ex} the exchange stiffness, {gamma} the gyromagnetic ratio, and an estimated proportional constant {eta}{sub c} = 1.66 {+-} 0.18. This criterion does neither depend on driving force parameters nor on the dimension or geometry of the magnetic specimen. The phase diagrams for the vortex core switching criterion and its switching time with respect to both the strength and angular frequency of circular rotating magnetic fields were derived, which offer practical guidance for implementing vortex core switching into future solid state information storage devices.

  19. A Soft-Switching Inverter for High-Temperature Advanced Hybrid Electric Vehicle Traction Motor Drives

    SciTech Connect (OSTI)

    None, None

    2012-01-31

    The state-of-the-art hybrid electric vehicles (HEVs) require the inverter cooling system to have a separate loop to avoid power semiconductor junction over temperatures because the engine coolant temperature of 105?C does not allow for much temperature rise in silicon devices. The proposed work is to develop an advanced soft-switching inverter that will eliminate the device switching loss and cut down the power loss so that the inverter can operate at high-temperature conditions while operating at high switching frequencies with small current ripple in low inductance based permanent magnet motors. The proposed tasks also include high-temperature packaging and thermal modeling and simulation to ensure the packaged module can operate at the desired temperature. The developed module will be integrated with the motor and vehicle controller for dynamometer and in-vehicle testing to prove its superiority. This report will describe the detailed technical design of the soft-switching inverters and their test results. The experiments were conducted both in module level for the module conduction and switching characteristics and in inverter level for its efficiency under inductive and dynamometer load conditions. The performance will be compared with the DOE original specification.

  20. Single Molecule Switches and Molecular Self-Assembly: Low Temperature STM Investigations and Manipulations

    SciTech Connect (OSTI)

    Iancu, Violeta

    2006-08-01

    This dissertation is devoted to single molecule investigations and manipulations of two porphyrin-based molecules, chlorophyll-a and Co-popphyrin. The molecules are absorbed on metallic substrates and studied at low temperatures using a scanning tunneling microscope. The electronic, structural and mechanical properties of the molecules are investigated in detail with atomic level precision. Chlorophyll-a is the key ingredient in photosynthesis processes while Co-porphyrin is a magnetic molecule that represents the recent emerging field of molecular spintronics. Using the scanning tunneling microscope tip and the substrate as electrodes, and the molecules as active ingredients, single molecule switches made of these two molecules are demonstrated. The first switch, a multiple and reversible mechanical switch, is realized by using chlorophyll-a where the energy transfer of a single tunneling electron is used to rotate a C-C bond of the molecule's tail on a Au(111) surface. Here, the det

  1. 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.

  2. Resistive switching characteristics of polycrystalline SrTiO{sub 3} films

    SciTech Connect (OSTI)

    Jong Choi, Hyung; Won Park, Suk; Deok Han, Gwon; Hyung Shim, Joon; Na, Junhong; Kim, Gyu-Tae

    2014-06-16

    Strontium titanate (STO) thin films 90?nm in thickness were grown on a Pt substrate through atomic layer deposition (ALD). The as-deposited ALD STO grown with an ALD cycle ratio of 1:1 (Sr:Ti) was in an amorphous phase, and annealing at 800?°C in air crystallized the films into the perovskite phase. This phase change was confirmed by x-ray diffraction and transmission electron microscopy. The as-deposited ALD STO exhibited no discernible switching mechanism, whereas unipolar switching behavior was reproducibly observed with a high resistance ratio (10{sup 8}–10{sup 9}) and strict separation of the set/reset voltages and currents in the annealed ALD STO. Mechanisms for charge transport in both the low- and high-resistance states and for resistive switching in the annealed ALD STO are also proposed.

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

    DOE Patents [OSTI]

    Hohimer, J.P.

    1994-06-07

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

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

    DOE Patents [OSTI]

    Hohimer, John P. (Albuquerque, NM)

    1994-01-01

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

  5. Fuel switching in the electricity sector under the EU ETS: Review and prospective

    SciTech Connect (OSTI)

    Delarue, E.; Voorspools, K.; D'haeseleer, W.

    2008-06-15

    The European Union has implemented the European Union emission trading scheme (EU ETS) as an instrument to facilitate greenhouse gas (GHG) emission abatement stipulated in the Kyoto protocol. Empirical data show that in the early stages of the EU ETS, the value of a ton of CO{sub 2} has already led to emission abatement through switching from coal to gas in the European electric power sector. In the second part of this paper, an electricity generation simulation model is used to perform simulations on the switching behavior in both the first and the second trading periods of the EU ETS. In 2005, the reduction in GHG emissions in the electric power sector due to EU ETS is estimated close to 88 Mton. For the second trading period, a European Union allowance (EUA) price dependent GHG reduction curve has been determined. The obtained switching potential turns out to be significant, up to 300 Mton/year, at sufficiently high EUA prices.

  6. CRAD, Occupational Safety & Health- Oak Ridge National Laboratory High Flux Isotope Reactor Contractor ORR

    Broader source: Energy.gov [DOE]

    A section of Appendix C to DOE G 226.1-2 "Federal Line Management Oversight of Department of Energy Nuclear Facilities." Consists of Criteria Review and Approach Documents (CRADs) used for a February 2007 assessment of the Occupational Safety and Health Program portion of an Operational Readiness Review of the Oak Ridge National Laboratory High Flux Isotope Reactor.

  7. Student manual, Book 2: Orientation to occupational safety compliance in DOE

    SciTech Connect (OSTI)

    Colley, D.L.

    1993-10-01

    This is a student hand-book an Occupational Safety Compliance in DOE. Topics include the following: Electrical; materials handling & storage; inspection responsibilities & procedures; general environmental controls; confined space entry; lockout/tagout; office safety, ergonomics & human factors; medical & first aid, access to records; construction safety; injury/illness reporting system; and accident investigation procedures.

  8. CRAD, Occupational Safety & Health- Los Alamos National Laboratory Waste Characterization, Reduction, and Repackaging Facility

    Broader source: Energy.gov [DOE]

    A section of Appendix C to DOE G 226.1-2 "Federal Line Management Oversight of Department of Energy Nuclear Facilities." Consists of Criteria Review and Approach Documents (CRADs) used for an assessment of the Occupational and Industrial Safety and Hygiene Program portion of an Operational Readiness Review at the Los Alamos National Laboratory Waste Characterization, Reduction, and Repackaging Facility.

  9. Not in the want ads: Finding the emerging environmental occupations within economic and social change

    SciTech Connect (OSTI)

    Palumbo, M.J.

    1995-12-01

    The transition of America`s work force is an evolving process. Environmental issues, in general, and environment occupational dynamics, in specific, are complex and involve a wide variety of private and public organizations. The paper advocates a federal government role in directly supporting sustainable development oriented environmental programs to assist in the transition of today`s labor into the skilled and growing occupations of tomorrow. The American economy and the industrial organizations which define it are changing drastically. Much of this change has been influenced by compliance to strict environmental regulation and enforcement, protective labor laws, and the increased adoption of pollution prevention processes and principles. Additional factors include: increased international competition and free trade, a global recession, and increasingly flexible capital transfer and monetary markets. As the world approaches the turn of the century, technological change dominates the economic landscape. There is no clearly drawn map or model on how American labor will integrate, prepare, and train for the new jobs created from the practice of sustainable development. The policies and commitments necessary to drive the transition of our occupational work force are clearly in their infancy. Consequently, the study will collect and synthesize existing information related to environmental occupations, job growth, and sustainable development oriented programs. The study will conclude with a discussion of common themes and policies for business and labor leaders, and environmental lists which maximize economic efficiency, protect the environment, and ensure that job creation is achieved.

  10. Electro-optic harmonic conversion to switch a laser beam out of a cavity

    DOE Patents [OSTI]

    Haas, Roger A. (Pleasanton, CA); Henesian, Mark A. (Livermore, CA)

    1987-01-01

    The invention is a switch to permit a laser beam to escape a laser cavity through the use of an externally applied electric field across a harmonic conversion crystal. Amplification takes place in the laser cavity, and then the laser beam is switched out by the laser light being harmonically converted with dichroic or polarization sensitive elements present to alter the optical path of the harmonically converted laser light. Modulation of the laser beam can also be accomplished by varying the external electric field.

  11. Autoinhibition and Signaling by the Switch II Motif in the G-protein

    Office of Scientific and Technical Information (OSTI)

    Chaperone of a Radical B[subscript 12] Enzyme (Journal Article) | SciTech Connect SciTech Connect Search Results Journal Article: Autoinhibition and Signaling by the Switch II Motif in the G-protein Chaperone of a Radical B[subscript 12] Enzyme Citation Details In-Document Search Title: Autoinhibition and Signaling by the Switch II Motif in the G-protein Chaperone of a Radical B[subscript 12] Enzyme Authors: Lofgren, Michael ; Koutmos, Markos ; Banerjee, Ruma [1] ; Michigan-Med) [2] + Show

  12. In situ transmission electron microscopy analysis of conductive filament during solid electrolyte resistance switching

    SciTech Connect (OSTI)

    Fujii, Takashi; Arita, Masashi; Takahashi, Yasuo; Fujiwara, Ichiro

    2011-05-23

    An in situ transmission electron microscopy (TEM) analysis of a solid electrolyte, Cu-GeS, during resistance switching is reported. Real-time observations of the filament formation and disappearance process were performed in the TEM instrument and the conductive-filament-formation model was confirmed experimentally. Narrow conductive filaments were formed corresponding to resistance switching from high- to low-resistance states. When the resistance changed to high-resistance state, the filament disappeared. It was also confirmed by use of selected area diffractometry and energy-dispersive x-ray spectroscopy that the conductive filament was made of nanocrystals composed mainly of Cu.

  13. Binary and ternary gas mixtures for use in glow discharge closing switches

    DOE Patents [OSTI]

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

    1988-04-27

    Highly efficient binary and ternary gas mixtures for use in diffuse glow discharge closing switches are disclosed. The binary mixtures are combinations of helium or neon and selected perfluorides. The ternary mixtures are combinations of helium, neon, or argon, a selected perfluoride, and a small amount of gas that exhibits enhanced ionization characteristics. These mixtures are shown to be the optimum choices for use in diffuse glow discharge closing switches by virtue if the combines physio-electric properties of the mixture components. 9 figs.

  14. Electrode with transparent series resistance for uniform switching of optical modulation devices

    DOE Patents [OSTI]

    Tench, D. Morgan (Camarillo, CA); Cunningham, Michael A. (Thousand Oaks, CA); Kobrin, Paul H. (Newbury Park, CA)

    2008-01-08

    Switching uniformity of an optical modulation device for controlling the propagation of electromagnetic radiation is improved by use of an electrode comprising an electrically resistive layer that is transparent to the radiation. The resistive layer is preferably an innerlayer of a wide-bandgap oxide sandwiched between layers of indium tin oxide or another transparent conductor, and may be of uniform thickness, or may be graded so as to provide further improvement in the switching uniformity. The electrode may be used with electrochromic and reversible electrochemical mirror (REM) smart window devices, as well as display devices based on various technologies.

  15. Photochemical switching behavior of azofunctionalized polymer liquid crystal/SiO{sub 2} composite photonic crystal

    SciTech Connect (OSTI)

    Moritsugu, M.; Kim, S. N.; Ogata, T.; Nonaka, T.; Kurihara, S.; Kubo, S.; Segawa, H.; Sato, O.

    2006-10-09

    A photochemically tunable photonic crystal was prepared by infiltrating azopolymer liquid crystal in a SiO{sub 2} inverse opal structure. The SiO{sub 2} inverse opal film obtained reflected a light corresponding to the periodicity as well as the refractive indices of the inverse opal structure. Linearly polarized light irradiation shifted the reflection band to longer wavelength more than 15 nm. This is caused by the formation of anisotropic molecular orientation of the azopolymer. The switched state was stable in the dark, and the reversible switching of the reflection band can be achieved by the linearly and circularly polarized light irradiations.

  16. Slideshow: Flipping the Switch on LED Lighting for the National Mall |

    Energy Savers [EERE]

    Department of Energy Slideshow: Flipping the Switch on LED Lighting for the National Mall Slideshow: Flipping the Switch on LED Lighting for the National Mall January 31, 2012 - 3:05pm Addthis 1 of 8 Facing East toward the Capitol Building, LED retrofitted lights line the interior paths of the mall while preserving the architectural integrity of the original fixtures. Image: Energy Department Image | Photo by Quentin Kruger (Contractor) | Public Domain Date taken: 2012-01-30 06:00 2 of 8

  17. Salazar, Chu to Flip Switch on Energy-Efficient LED Lights on National Mall

    Energy Savers [EERE]

    | Department of Energy Salazar, Chu to Flip Switch on Energy-Efficient LED Lights on National Mall Salazar, Chu to Flip Switch on Energy-Efficient LED Lights on National Mall January 30, 2012 - 11:02am Addthis WASHINGTON, D.C.-Today, Secretary of the Interior Ken Salazar and Secretary of Energy Steven Chu will participate in a lighting ceremony featuring the newly-installed LED lights on the National Mall. Illuminating the Mall from 3rd to 15th Streets, the LED technology is expected to

  18. EECBG Success Story: Texas County "Flips The Switch" On New

    Office of Environmental Management (EM)

    Energy-Efficient Complex | Department of Energy Texas County "Flips The Switch" On New Energy-Efficient Complex EECBG Success Story: Texas County "Flips The Switch" On New Energy-Efficient Complex March 7, 2011 - 5:17pm Addthis Fifth graders from Pharr-San Juan-Alamo Independent School District’s North Alamo Elementary celebrate the opening of the new Precinct 2 Multi-Purpose Facility and Administration Complex in Hidalgo County, Texas. The students received tours of

  19. New Switches for Utility-Scale Inverters: First In-Class Demonstration of a Completely New Type of SiC Bipolar Switch (15kV-20kV) for Utility-Scale Inverters

    SciTech Connect (OSTI)

    2011-12-31

    Solar ADEPT Project: The SiCLAB is developing a new power switch for utility-scale PV inverters that would improve the performance and significantly reduce the size, weight, and energy loss of PV systems. A power switch controls the electrical energy flowing through an inverter, which takes the electrical current from a PV solar panel and converts it into the type and amount of electricity that is compatible with the electric grid. SiCLAB is using silicon carbide (SiC) semiconductors in its new power switches, which are more efficient than the silicon semiconductors used to conduct electricity in most conventional power switches today. Switches with SiC semiconductors can operate at much higher temperatures, as well as higher voltage and power levels than silicon switches. SiC-based power switches are also smaller than those made with silicon alone, so they result in much smaller and lighter electrical devices. In addition to their use in utility-scale PV inverters, SiCLAB’s new power switches can also be used in wind turbines, railways, and other smart grid applications.

  20. Occupational exposures and chronic respiratory symptoms: a population-based study

    SciTech Connect (OSTI)

    Korn, R.J.; Dockery, D.W.; Speizer, F.E.; Ware, J.H.; Ferris, B.G.

    1987-01-01

    Data from a random sample of 8515 white adults residing in six cities in the eastern and midwestern United States were used to examine the relationships between occupational exposures to dust or to gases and fumes and chronic respiratory symptoms. 31% of the population had a history of occupational dust exposure and 30% reported exposure to gas or to fumes. After adjusting for smoking habits, age, gender, and city of residence, subjects with either occupational exposure had significantly elevated prevalence of chronic cough, chronic phlegm, persistent wheeze, and breathlessness. The adjusted relative odds of chronic respiratory symptoms for subjects exposed to dust ranged from 1.32 to 1.60. Subjects with gas or fume exposure had relative odds of symptoms between 1.27 and 1.43 when compared to unexposed subjects. Occupational dust exposure was associated with a higher prevalence of chronic obstructive pulmonary disease (COPD) as defined by an FEV1/FVC ratio of less than 0.6, when comparing exposed and unexposed participants (OR=1.53, 95% CI=1.17-2.08). Gas or fume exposure was associated with a small, but not significant, increase in COPD prevalence. Significant trends were noted for wheeze and phlegm with increasing duration of dust exposure. Although 36% of exposed subjects reported exposure to both dust and fumes, there was no evidence of a multiplicative interaction between the effects of the individual exposures. Smoking was a significant independent predictor of symptoms, but did not appear to modify the effect of dust or fumes on symptom reporting. These data, obtained in random samples of general populations, demonstrate that chronic respiratory disease can be independently associated with occupational exposures.